git.oblomov.eu Git - linux-2.6/blob - drivers/net/wireless/ipw2200.c

   1 /******************************************************************************
   2
   3   Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
   4
   5   802.11 status code portion of this file from ethereal-0.10.6:
   6     Copyright 2000, Axis Communications AB
   7     Ethereal - Network traffic analyzer
   8     By Gerald Combs <gerald@ethereal.com>
   9     Copyright 1998 Gerald Combs
  10
  11   This program is free software; you can redistribute it and/or modify it
  12   under the terms of version 2 of the GNU General Public License as
  13   published by the Free Software Foundation.
  14
  15   This program is distributed in the hope that it will be useful, but WITHOUT
  16   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  18   more details.
  19
  20   You should have received a copy of the GNU General Public License along with
  21   this program; if not, write to the Free Software Foundation, Inc., 59
  22   Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23
  24   The full GNU General Public License is included in this distribution in the
  25   file called LICENSE.
  26
  27   Contact Information:
  28   James P. Ketrenos <ipw2100-admin@linux.intel.com>
  29   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30
  31 ******************************************************************************/
  32
  33 #include "ipw2200.h"
  34 #include <linux/version.h>
  35
  36
  37 #ifndef KBUILD_EXTMOD
  38 #define VK "k"
  39 #else
  40 #define VK
  41 #endif
  42
  43 #ifdef CONFIG_IPW2200_DEBUG
  44 #define VD "d"
  45 #else
  46 #define VD
  47 #endif
  48
  49 #ifdef CONFIG_IPW2200_MONITOR
  50 #define VM "m"
  51 #else
  52 #define VM
  53 #endif
  54
  55 #ifdef CONFIG_IPW2200_PROMISCUOUS
  56 #define VP "p"
  57 #else
  58 #define VP
  59 #endif
  60
  61 #ifdef CONFIG_IPW2200_RADIOTAP
  62 #define VR "r"
  63 #else
  64 #define VR
  65 #endif
  66
  67 #ifdef CONFIG_IPW2200_QOS
  68 #define VQ "q"
  69 #else
  70 #define VQ
  71 #endif
  72
  73 #define IPW2200_VERSION "1.1.4" VK VD VM VP VR VQ
  74 #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver"
  75 #define DRV_COPYRIGHT   "Copyright(c) 2003-2006 Intel Corporation"
  76 #define DRV_VERSION     IPW2200_VERSION
  77
  78 #define ETH_P_80211_STATS (ETH_P_80211_RAW + 1)
  79
  80 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  81 MODULE_VERSION(DRV_VERSION);
  82 MODULE_AUTHOR(DRV_COPYRIGHT);
  83 MODULE_LICENSE("GPL");
  84
  85 static int cmdlog = 0;
  86 static int debug = 0;
  87 static int channel = 0;
  88 static int mode = 0;
  89
  90 static u32 ipw_debug_level;
  91 static int associate = 1;
  92 static int auto_create = 1;
  93 static int led = 0;
  94 static int disable = 0;
  95 static int bt_coexist = 0;
  96 static int hwcrypto = 0;
  97 static int roaming = 1;
  98 static const char ipw_modes[] = {
  99         'a', 'b', 'g', '?'
 100 };
 101 static int antenna = CFG_SYS_ANTENNA_BOTH;
 102
 103 #ifdef CONFIG_IPW2200_PROMISCUOUS
 104 static int rtap_iface = 0;     /* def: 0 -- do not create rtap interface */
 105 #endif
 106
 107
 108 #ifdef CONFIG_IPW2200_QOS
 109 static int qos_enable = 0;
 110 static int qos_burst_enable = 0;
 111 static int qos_no_ack_mask = 0;
 112 static int burst_duration_CCK = 0;
 113 static int burst_duration_OFDM = 0;
 114
 115 static struct ieee80211_qos_parameters def_qos_parameters_OFDM = {
 116         {QOS_TX0_CW_MIN_OFDM, QOS_TX1_CW_MIN_OFDM, QOS_TX2_CW_MIN_OFDM,
 117          QOS_TX3_CW_MIN_OFDM},
 118         {QOS_TX0_CW_MAX_OFDM, QOS_TX1_CW_MAX_OFDM, QOS_TX2_CW_MAX_OFDM,
 119          QOS_TX3_CW_MAX_OFDM},
 120         {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
 121         {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
 122         {QOS_TX0_TXOP_LIMIT_OFDM, QOS_TX1_TXOP_LIMIT_OFDM,
 123          QOS_TX2_TXOP_LIMIT_OFDM, QOS_TX3_TXOP_LIMIT_OFDM}
 124 };
 125
 126 static struct ieee80211_qos_parameters def_qos_parameters_CCK = {
 127         {QOS_TX0_CW_MIN_CCK, QOS_TX1_CW_MIN_CCK, QOS_TX2_CW_MIN_CCK,
 128          QOS_TX3_CW_MIN_CCK},
 129         {QOS_TX0_CW_MAX_CCK, QOS_TX1_CW_MAX_CCK, QOS_TX2_CW_MAX_CCK,
 130          QOS_TX3_CW_MAX_CCK},
 131         {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
 132         {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
 133         {QOS_TX0_TXOP_LIMIT_CCK, QOS_TX1_TXOP_LIMIT_CCK, QOS_TX2_TXOP_LIMIT_CCK,
 134          QOS_TX3_TXOP_LIMIT_CCK}
 135 };
 136
 137 static struct ieee80211_qos_parameters def_parameters_OFDM = {
 138         {DEF_TX0_CW_MIN_OFDM, DEF_TX1_CW_MIN_OFDM, DEF_TX2_CW_MIN_OFDM,
 139          DEF_TX3_CW_MIN_OFDM},
 140         {DEF_TX0_CW_MAX_OFDM, DEF_TX1_CW_MAX_OFDM, DEF_TX2_CW_MAX_OFDM,
 141          DEF_TX3_CW_MAX_OFDM},
 142         {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
 143         {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
 144         {DEF_TX0_TXOP_LIMIT_OFDM, DEF_TX1_TXOP_LIMIT_OFDM,
 145          DEF_TX2_TXOP_LIMIT_OFDM, DEF_TX3_TXOP_LIMIT_OFDM}
 146 };
 147
 148 static struct ieee80211_qos_parameters def_parameters_CCK = {
 149         {DEF_TX0_CW_MIN_CCK, DEF_TX1_CW_MIN_CCK, DEF_TX2_CW_MIN_CCK,
 150          DEF_TX3_CW_MIN_CCK},
 151         {DEF_TX0_CW_MAX_CCK, DEF_TX1_CW_MAX_CCK, DEF_TX2_CW_MAX_CCK,
 152          DEF_TX3_CW_MAX_CCK},
 153         {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
 154         {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
 155         {DEF_TX0_TXOP_LIMIT_CCK, DEF_TX1_TXOP_LIMIT_CCK, DEF_TX2_TXOP_LIMIT_CCK,
 156          DEF_TX3_TXOP_LIMIT_CCK}
 157 };
 158
 159 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
 160
 161 static int from_priority_to_tx_queue[] = {
 162         IPW_TX_QUEUE_1, IPW_TX_QUEUE_2, IPW_TX_QUEUE_2, IPW_TX_QUEUE_1,
 163         IPW_TX_QUEUE_3, IPW_TX_QUEUE_3, IPW_TX_QUEUE_4, IPW_TX_QUEUE_4
 164 };
 165
 166 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv);
 167
 168 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct ieee80211_qos_parameters
 169                                        *qos_param);
 170 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct ieee80211_qos_information_element
 171                                      *qos_param);
 172 #endif                          /* CONFIG_IPW2200_QOS */
 173
 174 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev);
 175 static void ipw_remove_current_network(struct ipw_priv *priv);
 176 static void ipw_rx(struct ipw_priv *priv);
 177 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
 178                                 struct clx2_tx_queue *txq, int qindex);
 179 static int ipw_queue_reset(struct ipw_priv *priv);
 180
 181 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
 182                              int len, int sync);
 183
 184 static void ipw_tx_queue_free(struct ipw_priv *);
 185
 186 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *);
 187 static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *);
 188 static void ipw_rx_queue_replenish(void *);
 189 static int ipw_up(struct ipw_priv *);
 190 static void ipw_bg_up(void *);
 191 static void ipw_down(struct ipw_priv *);
 192 static void ipw_bg_down(void *);
 193 static int ipw_config(struct ipw_priv *);
 194 static int init_supported_rates(struct ipw_priv *priv,
 195                                 struct ipw_supported_rates *prates);
 196 static void ipw_set_hwcrypto_keys(struct ipw_priv *);
 197 static void ipw_send_wep_keys(struct ipw_priv *, int);
 198
 199 static int snprint_line(char *buf, size_t count,
 200                         const u8 * data, u32 len, u32 ofs)
 201 {
 202         int out, i, j, l;
 203         char c;
 204
 205         out = snprintf(buf, count, "%08X", ofs);
 206
 207         for (l = 0, i = 0; i < 2; i++) {
 208                 out += snprintf(buf + out, count - out, " ");
 209                 for (j = 0; j < 8 && l < len; j++, l++)
 210                         out += snprintf(buf + out, count - out, "%02X ",
 211                                         data[(i * 8 + j)]);
 212                 for (; j < 8; j++)
 213                         out += snprintf(buf + out, count - out, "   ");
 214         }
 215
 216         out += snprintf(buf + out, count - out, " ");
 217         for (l = 0, i = 0; i < 2; i++) {
 218                 out += snprintf(buf + out, count - out, " ");
 219                 for (j = 0; j < 8 && l < len; j++, l++) {
 220                         c = data[(i * 8 + j)];
 221                         if (!isascii(c) || !isprint(c))
 222                                 c = '.';
 223
 224                         out += snprintf(buf + out, count - out, "%c", c);
 225                 }
 226
 227                 for (; j < 8; j++)
 228                         out += snprintf(buf + out, count - out, " ");
 229         }
 230
 231         return out;
 232 }
 233
 234 static void printk_buf(int level, const u8 * data, u32 len)
 235 {
 236         char line[81];
 237         u32 ofs = 0;
 238         if (!(ipw_debug_level & level))
 239                 return;
 240
 241         while (len) {
 242                 snprint_line(line, sizeof(line), &data[ofs],
 243                              min(len, 16U), ofs);
 244                 printk(KERN_DEBUG "%s\n", line);
 245                 ofs += 16;
 246                 len -= min(len, 16U);
 247         }
 248 }
 249
 250 static int snprintk_buf(u8 * output, size_t size, const u8 * data, size_t len)
 251 {
 252         size_t out = size;
 253         u32 ofs = 0;
 254         int total = 0;
 255
 256         while (size && len) {
 257                 out = snprint_line(output, size, &data[ofs],
 258                                    min_t(size_t, len, 16U), ofs);
 259
 260                 ofs += 16;
 261                 output += out;
 262                 size -= out;
 263                 len -= min_t(size_t, len, 16U);
 264                 total += out;
 265         }
 266         return total;
 267 }
 268
 269 /* alias for 32-bit indirect read (for SRAM/reg above 4K), with debug wrapper */
 270 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg);
 271 #define ipw_read_reg32(a, b) _ipw_read_reg32(a, b)
 272
 273 /* alias for 8-bit indirect read (for SRAM/reg above 4K), with debug wrapper */
 274 static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg);
 275 #define ipw_read_reg8(a, b) _ipw_read_reg8(a, b)
 276
 277 /* 8-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
 278 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value);
 279 static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c)
 280 {
 281         IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__,
 282                      __LINE__, (u32) (b), (u32) (c));
 283         _ipw_write_reg8(a, b, c);
 284 }
 285
 286 /* 16-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
 287 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value);
 288 static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c)
 289 {
 290         IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__,
 291                      __LINE__, (u32) (b), (u32) (c));
 292         _ipw_write_reg16(a, b, c);
 293 }
 294
 295 /* 32-bit indirect write (for SRAM/reg above 4K), with debug wrapper */
 296 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value);
 297 static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c)
 298 {
 299         IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__,
 300                      __LINE__, (u32) (b), (u32) (c));
 301         _ipw_write_reg32(a, b, c);
 302 }
 303
 304 /* 8-bit direct write (low 4K) */
 305 #define _ipw_write8(ipw, ofs, val) writeb((val), (ipw)->hw_base + (ofs))
 306
 307 /* 8-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
 308 #define ipw_write8(ipw, ofs, val) \
 309  IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
 310  _ipw_write8(ipw, ofs, val)
 311
 312 /* 16-bit direct write (low 4K) */
 313 #define _ipw_write16(ipw, ofs, val) writew((val), (ipw)->hw_base + (ofs))
 314
 315 /* 16-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
 316 #define ipw_write16(ipw, ofs, val) \
 317  IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
 318  _ipw_write16(ipw, ofs, val)
 319
 320 /* 32-bit direct write (low 4K) */
 321 #define _ipw_write32(ipw, ofs, val) writel((val), (ipw)->hw_base + (ofs))
 322
 323 /* 32-bit direct write (for low 4K of SRAM/regs), with debug wrapper */
 324 #define ipw_write32(ipw, ofs, val) \
 325  IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
 326  _ipw_write32(ipw, ofs, val)
 327
 328 /* 8-bit direct read (low 4K) */
 329 #define _ipw_read8(ipw, ofs) readb((ipw)->hw_base + (ofs))
 330
 331 /* 8-bit direct read (low 4K), with debug wrapper */
 332 static inline u8 __ipw_read8(char *f, u32 l, struct ipw_priv *ipw, u32 ofs)
 333 {
 334         IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", f, l, (u32) (ofs));
 335         return _ipw_read8(ipw, ofs);
 336 }
 337
 338 /* alias to 8-bit direct read (low 4K of SRAM/regs), with debug wrapper */
 339 #define ipw_read8(ipw, ofs) __ipw_read8(__FILE__, __LINE__, ipw, ofs)
 340
 341 /* 16-bit direct read (low 4K) */
 342 #define _ipw_read16(ipw, ofs) readw((ipw)->hw_base + (ofs))
 343
 344 /* 16-bit direct read (low 4K), with debug wrapper */
 345 static inline u16 __ipw_read16(char *f, u32 l, struct ipw_priv *ipw, u32 ofs)
 346 {
 347         IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", f, l, (u32) (ofs));
 348         return _ipw_read16(ipw, ofs);
 349 }
 350
 351 /* alias to 16-bit direct read (low 4K of SRAM/regs), with debug wrapper */
 352 #define ipw_read16(ipw, ofs) __ipw_read16(__FILE__, __LINE__, ipw, ofs)
 353
 354 /* 32-bit direct read (low 4K) */
 355 #define _ipw_read32(ipw, ofs) readl((ipw)->hw_base + (ofs))
 356
 357 /* 32-bit direct read (low 4K), with debug wrapper */
 358 static inline u32 __ipw_read32(char *f, u32 l, struct ipw_priv *ipw, u32 ofs)
 359 {
 360         IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", f, l, (u32) (ofs));
 361         return _ipw_read32(ipw, ofs);
 362 }
 363
 364 /* alias to 32-bit direct read (low 4K of SRAM/regs), with debug wrapper */
 365 #define ipw_read32(ipw, ofs) __ipw_read32(__FILE__, __LINE__, ipw, ofs)
 366
 367 /* multi-byte read (above 4K), with debug wrapper */
 368 static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int);
 369 static inline void __ipw_read_indirect(const char *f, int l,
 370                                        struct ipw_priv *a, u32 b, u8 * c, int d)
 371 {
 372         IPW_DEBUG_IO("%s %d: read_indirect(0x%08X) %d bytes\n", f, l, (u32) (b),
 373                      d);
 374         _ipw_read_indirect(a, b, c, d);
 375 }
 376
 377 /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */
 378 #define ipw_read_indirect(a, b, c, d) __ipw_read_indirect(__FILE__, __LINE__, a, b, c, d)
 379
 380 /* alias to multi-byte read (SRAM/regs above 4K), with debug wrapper */
 381 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * data,
 382                                 int num);
 383 #define ipw_write_indirect(a, b, c, d) \
 384         IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %d bytes\n", __FILE__, __LINE__, (u32)(b), d); \
 385         _ipw_write_indirect(a, b, c, d)
 386
 387 /* 32-bit indirect write (above 4K) */
 388 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value)
 389 {
 390         IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n", priv, reg, value);
 391         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
 392         _ipw_write32(priv, IPW_INDIRECT_DATA, value);
 393 }
 394
 395 /* 8-bit indirect write (above 4K) */
 396 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value)
 397 {
 398         u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK;        /* dword align */
 399         u32 dif_len = reg - aligned_addr;
 400
 401         IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
 402         _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 403         _ipw_write8(priv, IPW_INDIRECT_DATA + dif_len, value);
 404 }
 405
 406 /* 16-bit indirect write (above 4K) */
 407 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value)
 408 {
 409         u32 aligned_addr = reg & IPW_INDIRECT_ADDR_MASK;        /* dword align */
 410         u32 dif_len = (reg - aligned_addr) & (~0x1ul);
 411
 412         IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
 413         _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 414         _ipw_write16(priv, IPW_INDIRECT_DATA + dif_len, value);
 415 }
 416
 417 /* 8-bit indirect read (above 4K) */
 418 static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg)
 419 {
 420         u32 word;
 421         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK);
 422         IPW_DEBUG_IO(" reg = 0x%8X : \n", reg);
 423         word = _ipw_read32(priv, IPW_INDIRECT_DATA);
 424         return (word >> ((reg & 0x3) * 8)) & 0xff;
 425 }
 426
 427 /* 32-bit indirect read (above 4K) */
 428 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg)
 429 {
 430         u32 value;
 431
 432         IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg);
 433
 434         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
 435         value = _ipw_read32(priv, IPW_INDIRECT_DATA);
 436         IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x \n", reg, value);
 437         return value;
 438 }
 439
 440 /* General purpose, no alignment requirement, iterative (multi-byte) read, */
 441 /*    for area above 1st 4K of SRAM/reg space */
 442 static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
 443                                int num)
 444 {
 445         u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK;       /* dword align */
 446         u32 dif_len = addr - aligned_addr;
 447         u32 i;
 448
 449         IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
 450
 451         if (num <= 0) {
 452                 return;
 453         }
 454
 455         /* Read the first dword (or portion) byte by byte */
 456         if (unlikely(dif_len)) {
 457                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 458                 /* Start reading at aligned_addr + dif_len */
 459                 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--)
 460                         *buf++ = _ipw_read8(priv, IPW_INDIRECT_DATA + i);
 461                 aligned_addr += 4;
 462         }
 463
 464         /* Read all of the middle dwords as dwords, with auto-increment */
 465         _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
 466         for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
 467                 *(u32 *) buf = _ipw_read32(priv, IPW_AUTOINC_DATA);
 468
 469         /* Read the last dword (or portion) byte by byte */
 470         if (unlikely(num)) {
 471                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 472                 for (i = 0; num > 0; i++, num--)
 473                         *buf++ = ipw_read8(priv, IPW_INDIRECT_DATA + i);
 474         }
 475 }
 476
 477 /* General purpose, no alignment requirement, iterative (multi-byte) write, */
 478 /*    for area above 1st 4K of SRAM/reg space */
 479 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
 480                                 int num)
 481 {
 482         u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK;       /* dword align */
 483         u32 dif_len = addr - aligned_addr;
 484         u32 i;
 485
 486         IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
 487
 488         if (num <= 0) {
 489                 return;
 490         }
 491
 492         /* Write the first dword (or portion) byte by byte */
 493         if (unlikely(dif_len)) {
 494                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 495                 /* Start writing at aligned_addr + dif_len */
 496                 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--, buf++)
 497                         _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
 498                 aligned_addr += 4;
 499         }
 500
 501         /* Write all of the middle dwords as dwords, with auto-increment */
 502         _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
 503         for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
 504                 _ipw_write32(priv, IPW_AUTOINC_DATA, *(u32 *) buf);
 505
 506         /* Write the last dword (or portion) byte by byte */
 507         if (unlikely(num)) {
 508                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 509                 for (i = 0; num > 0; i++, num--, buf++)
 510                         _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
 511         }
 512 }
 513
 514 /* General purpose, no alignment requirement, iterative (multi-byte) write, */
 515 /*    for 1st 4K of SRAM/regs space */
 516 static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf,
 517                              int num)
 518 {
 519         memcpy_toio((priv->hw_base + addr), buf, num);
 520 }
 521
 522 /* Set bit(s) in low 4K of SRAM/regs */
 523 static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask)
 524 {
 525         ipw_write32(priv, reg, ipw_read32(priv, reg) | mask);
 526 }
 527
 528 /* Clear bit(s) in low 4K of SRAM/regs */
 529 static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask)
 530 {
 531         ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask);
 532 }
 533
 534 static inline void __ipw_enable_interrupts(struct ipw_priv *priv)
 535 {
 536         if (priv->status & STATUS_INT_ENABLED)
 537                 return;
 538         priv->status |= STATUS_INT_ENABLED;
 539         ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL);
 540 }
 541
 542 static inline void __ipw_disable_interrupts(struct ipw_priv *priv)
 543 {
 544         if (!(priv->status & STATUS_INT_ENABLED))
 545                 return;
 546         priv->status &= ~STATUS_INT_ENABLED;
 547         ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
 548 }
 549
 550 static inline void ipw_enable_interrupts(struct ipw_priv *priv)
 551 {
 552         unsigned long flags;
 553
 554         spin_lock_irqsave(&priv->irq_lock, flags);
 555         __ipw_enable_interrupts(priv);
 556         spin_unlock_irqrestore(&priv->irq_lock, flags);
 557 }
 558
 559 static inline void ipw_disable_interrupts(struct ipw_priv *priv)
 560 {
 561         unsigned long flags;
 562
 563         spin_lock_irqsave(&priv->irq_lock, flags);
 564         __ipw_disable_interrupts(priv);
 565         spin_unlock_irqrestore(&priv->irq_lock, flags);
 566 }
 567
 568 static char *ipw_error_desc(u32 val)
 569 {
 570         switch (val) {
 571         case IPW_FW_ERROR_OK:
 572                 return "ERROR_OK";
 573         case IPW_FW_ERROR_FAIL:
 574                 return "ERROR_FAIL";
 575         case IPW_FW_ERROR_MEMORY_UNDERFLOW:
 576                 return "MEMORY_UNDERFLOW";
 577         case IPW_FW_ERROR_MEMORY_OVERFLOW:
 578                 return "MEMORY_OVERFLOW";
 579         case IPW_FW_ERROR_BAD_PARAM:
 580                 return "BAD_PARAM";
 581         case IPW_FW_ERROR_BAD_CHECKSUM:
 582                 return "BAD_CHECKSUM";
 583         case IPW_FW_ERROR_NMI_INTERRUPT:
 584                 return "NMI_INTERRUPT";
 585         case IPW_FW_ERROR_BAD_DATABASE:
 586                 return "BAD_DATABASE";
 587         case IPW_FW_ERROR_ALLOC_FAIL:
 588                 return "ALLOC_FAIL";
 589         case IPW_FW_ERROR_DMA_UNDERRUN:
 590                 return "DMA_UNDERRUN";
 591         case IPW_FW_ERROR_DMA_STATUS:
 592                 return "DMA_STATUS";
 593         case IPW_FW_ERROR_DINO_ERROR:
 594                 return "DINO_ERROR";
 595         case IPW_FW_ERROR_EEPROM_ERROR:
 596                 return "EEPROM_ERROR";
 597         case IPW_FW_ERROR_SYSASSERT:
 598                 return "SYSASSERT";
 599         case IPW_FW_ERROR_FATAL_ERROR:
 600                 return "FATAL_ERROR";
 601         default:
 602                 return "UNKNOWN_ERROR";
 603         }
 604 }
 605
 606 static void ipw_dump_error_log(struct ipw_priv *priv,
 607                                struct ipw_fw_error *error)
 608 {
 609         u32 i;
 610
 611         if (!error) {
 612                 IPW_ERROR("Error allocating and capturing error log.  "
 613                           "Nothing to dump.\n");
 614                 return;
 615         }
 616
 617         IPW_ERROR("Start IPW Error Log Dump:\n");
 618         IPW_ERROR("Status: 0x%08X, Config: %08X\n",
 619                   error->status, error->config);
 620
 621         for (i = 0; i < error->elem_len; i++)
 622                 IPW_ERROR("%s %i 0x%08x  0x%08x  0x%08x  0x%08x  0x%08x\n",
 623                           ipw_error_desc(error->elem[i].desc),
 624                           error->elem[i].time,
 625                           error->elem[i].blink1,
 626                           error->elem[i].blink2,
 627                           error->elem[i].link1,
 628                           error->elem[i].link2, error->elem[i].data);
 629         for (i = 0; i < error->log_len; i++)
 630                 IPW_ERROR("%i\t0x%08x\t%i\n",
 631                           error->log[i].time,
 632                           error->log[i].data, error->log[i].event);
 633 }
 634
 635 static inline int ipw_is_init(struct ipw_priv *priv)
 636 {
 637         return (priv->status & STATUS_INIT) ? 1 : 0;
 638 }
 639
 640 static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val, u32 * len)
 641 {
 642         u32 addr, field_info, field_len, field_count, total_len;
 643
 644         IPW_DEBUG_ORD("ordinal = %i\n", ord);
 645
 646         if (!priv || !val || !len) {
 647                 IPW_DEBUG_ORD("Invalid argument\n");
 648                 return -EINVAL;
 649         }
 650
 651         /* verify device ordinal tables have been initialized */
 652         if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) {
 653                 IPW_DEBUG_ORD("Access ordinals before initialization\n");
 654                 return -EINVAL;
 655         }
 656
 657         switch (IPW_ORD_TABLE_ID_MASK & ord) {
 658         case IPW_ORD_TABLE_0_MASK:
 659                 /*
 660                  * TABLE 0: Direct access to a table of 32 bit values
 661                  *
 662                  * This is a very simple table with the data directly
 663                  * read from the table
 664                  */
 665
 666                 /* remove the table id from the ordinal */
 667                 ord &= IPW_ORD_TABLE_VALUE_MASK;
 668
 669                 /* boundary check */
 670                 if (ord > priv->table0_len) {
 671                         IPW_DEBUG_ORD("ordinal value (%i) longer then "
 672                                       "max (%i)\n", ord, priv->table0_len);
 673                         return -EINVAL;
 674                 }
 675
 676                 /* verify we have enough room to store the value */
 677                 if (*len < sizeof(u32)) {
 678                         IPW_DEBUG_ORD("ordinal buffer length too small, "
 679                                       "need %zd\n", sizeof(u32));
 680                         return -EINVAL;
 681                 }
 682
 683                 IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n",
 684                               ord, priv->table0_addr + (ord << 2));
 685
 686                 *len = sizeof(u32);
 687                 ord <<= 2;
 688                 *((u32 *) val) = ipw_read32(priv, priv->table0_addr + ord);
 689                 break;
 690
 691         case IPW_ORD_TABLE_1_MASK:
 692                 /*
 693                  * TABLE 1: Indirect access to a table of 32 bit values
 694                  *
 695                  * This is a fairly large table of u32 values each
 696                  * representing starting addr for the data (which is
 697                  * also a u32)
 698                  */
 699
 700                 /* remove the table id from the ordinal */
 701                 ord &= IPW_ORD_TABLE_VALUE_MASK;
 702
 703                 /* boundary check */
 704                 if (ord > priv->table1_len) {
 705                         IPW_DEBUG_ORD("ordinal value too long\n");
 706                         return -EINVAL;
 707                 }
 708
 709                 /* verify we have enough room to store the value */
 710                 if (*len < sizeof(u32)) {
 711                         IPW_DEBUG_ORD("ordinal buffer length too small, "
 712                                       "need %zd\n", sizeof(u32));
 713                         return -EINVAL;
 714                 }
 715
 716                 *((u32 *) val) =
 717                     ipw_read_reg32(priv, (priv->table1_addr + (ord << 2)));
 718                 *len = sizeof(u32);
 719                 break;
 720
 721         case IPW_ORD_TABLE_2_MASK:
 722                 /*
 723                  * TABLE 2: Indirect access to a table of variable sized values
 724                  *
 725                  * This table consist of six values, each containing
 726                  *     - dword containing the starting offset of the data
 727                  *     - dword containing the lengh in the first 16bits
 728                  *       and the count in the second 16bits
 729                  */
 730
 731                 /* remove the table id from the ordinal */
 732                 ord &= IPW_ORD_TABLE_VALUE_MASK;
 733
 734                 /* boundary check */
 735                 if (ord > priv->table2_len) {
 736                         IPW_DEBUG_ORD("ordinal value too long\n");
 737                         return -EINVAL;
 738                 }
 739
 740                 /* get the address of statistic */
 741                 addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3));
 742
 743                 /* get the second DW of statistics ;
 744                  * two 16-bit words - first is length, second is count */
 745                 field_info =
 746                     ipw_read_reg32(priv,
 747                                    priv->table2_addr + (ord << 3) +
 748                                    sizeof(u32));
 749
 750                 /* get each entry length */
 751                 field_len = *((u16 *) & field_info);
 752
 753                 /* get number of entries */
 754                 field_count = *(((u16 *) & field_info) + 1);
 755
 756                 /* abort if not enought memory */
 757                 total_len = field_len * field_count;
 758                 if (total_len > *len) {
 759                         *len = total_len;
 760                         return -EINVAL;
 761                 }
 762
 763                 *len = total_len;
 764                 if (!total_len)
 765                         return 0;
 766
 767                 IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, "
 768                               "field_info = 0x%08x\n",
 769                               addr, total_len, field_info);
 770                 ipw_read_indirect(priv, addr, val, total_len);
 771                 break;
 772
 773         default:
 774                 IPW_DEBUG_ORD("Invalid ordinal!\n");
 775                 return -EINVAL;
 776
 777         }
 778
 779         return 0;
 780 }
 781
 782 static void ipw_init_ordinals(struct ipw_priv *priv)
 783 {
 784         priv->table0_addr = IPW_ORDINALS_TABLE_LOWER;
 785         priv->table0_len = ipw_read32(priv, priv->table0_addr);
 786
 787         IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n",
 788                       priv->table0_addr, priv->table0_len);
 789
 790         priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1);
 791         priv->table1_len = ipw_read_reg32(priv, priv->table1_addr);
 792
 793         IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n",
 794                       priv->table1_addr, priv->table1_len);
 795
 796         priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2);
 797         priv->table2_len = ipw_read_reg32(priv, priv->table2_addr);
 798         priv->table2_len &= 0x0000ffff; /* use first two bytes */
 799
 800         IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n",
 801                       priv->table2_addr, priv->table2_len);
 802
 803 }
 804
 805 static u32 ipw_register_toggle(u32 reg)
 806 {
 807         reg &= ~IPW_START_STANDBY;
 808         if (reg & IPW_GATE_ODMA)
 809                 reg &= ~IPW_GATE_ODMA;
 810         if (reg & IPW_GATE_IDMA)
 811                 reg &= ~IPW_GATE_IDMA;
 812         if (reg & IPW_GATE_ADMA)
 813                 reg &= ~IPW_GATE_ADMA;
 814         return reg;
 815 }
 816
 817 /*
 818  * LED behavior:
 819  * - On radio ON, turn on any LEDs that require to be on during start
 820  * - On initialization, start unassociated blink
 821  * - On association, disable unassociated blink
 822  * - On disassociation, start unassociated blink
 823  * - On radio OFF, turn off any LEDs started during radio on
 824  *
 825  */
 826 #define LD_TIME_LINK_ON msecs_to_jiffies(300)
 827 #define LD_TIME_LINK_OFF msecs_to_jiffies(2700)
 828 #define LD_TIME_ACT_ON msecs_to_jiffies(250)
 829
 830 static void ipw_led_link_on(struct ipw_priv *priv)
 831 {
 832         unsigned long flags;
 833         u32 led;
 834
 835         /* If configured to not use LEDs, or nic_type is 1,
 836          * then we don't toggle a LINK led */
 837         if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
 838                 return;
 839
 840         spin_lock_irqsave(&priv->lock, flags);
 841
 842         if (!(priv->status & STATUS_RF_KILL_MASK) &&
 843             !(priv->status & STATUS_LED_LINK_ON)) {
 844                 IPW_DEBUG_LED("Link LED On\n");
 845                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 846                 led |= priv->led_association_on;
 847
 848                 led = ipw_register_toggle(led);
 849
 850                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 851                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 852
 853                 priv->status |= STATUS_LED_LINK_ON;
 854
 855                 /* If we aren't associated, schedule turning the LED off */
 856                 if (!(priv->status & STATUS_ASSOCIATED))
 857                         queue_delayed_work(priv->workqueue,
 858                                            &priv->led_link_off,
 859                                            LD_TIME_LINK_ON);
 860         }
 861
 862         spin_unlock_irqrestore(&priv->lock, flags);
 863 }
 864
 865 static void ipw_bg_led_link_on(void *data)
 866 {
 867         struct ipw_priv *priv = data;
 868         mutex_lock(&priv->mutex);
 869         ipw_led_link_on(data);
 870         mutex_unlock(&priv->mutex);
 871 }
 872
 873 static void ipw_led_link_off(struct ipw_priv *priv)
 874 {
 875         unsigned long flags;
 876         u32 led;
 877
 878         /* If configured not to use LEDs, or nic type is 1,
 879          * then we don't goggle the LINK led. */
 880         if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
 881                 return;
 882
 883         spin_lock_irqsave(&priv->lock, flags);
 884
 885         if (priv->status & STATUS_LED_LINK_ON) {
 886                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 887                 led &= priv->led_association_off;
 888                 led = ipw_register_toggle(led);
 889
 890                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 891                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 892
 893                 IPW_DEBUG_LED("Link LED Off\n");
 894
 895                 priv->status &= ~STATUS_LED_LINK_ON;
 896
 897                 /* If we aren't associated and the radio is on, schedule
 898                  * turning the LED on (blink while unassociated) */
 899                 if (!(priv->status & STATUS_RF_KILL_MASK) &&
 900                     !(priv->status & STATUS_ASSOCIATED))
 901                         queue_delayed_work(priv->workqueue, &priv->led_link_on,
 902                                            LD_TIME_LINK_OFF);
 903
 904         }
 905
 906         spin_unlock_irqrestore(&priv->lock, flags);
 907 }
 908
 909 static void ipw_bg_led_link_off(void *data)
 910 {
 911         struct ipw_priv *priv = data;
 912         mutex_lock(&priv->mutex);
 913         ipw_led_link_off(data);
 914         mutex_unlock(&priv->mutex);
 915 }
 916
 917 static void __ipw_led_activity_on(struct ipw_priv *priv)
 918 {
 919         u32 led;
 920
 921         if (priv->config & CFG_NO_LED)
 922                 return;
 923
 924         if (priv->status & STATUS_RF_KILL_MASK)
 925                 return;
 926
 927         if (!(priv->status & STATUS_LED_ACT_ON)) {
 928                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 929                 led |= priv->led_activity_on;
 930
 931                 led = ipw_register_toggle(led);
 932
 933                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 934                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 935
 936                 IPW_DEBUG_LED("Activity LED On\n");
 937
 938                 priv->status |= STATUS_LED_ACT_ON;
 939
 940                 cancel_delayed_work(&priv->led_act_off);
 941                 queue_delayed_work(priv->workqueue, &priv->led_act_off,
 942                                    LD_TIME_ACT_ON);
 943         } else {
 944                 /* Reschedule LED off for full time period */
 945                 cancel_delayed_work(&priv->led_act_off);
 946                 queue_delayed_work(priv->workqueue, &priv->led_act_off,
 947                                    LD_TIME_ACT_ON);
 948         }
 949 }
 950
 951 #if 0
 952 void ipw_led_activity_on(struct ipw_priv *priv)
 953 {
 954         unsigned long flags;
 955         spin_lock_irqsave(&priv->lock, flags);
 956         __ipw_led_activity_on(priv);
 957         spin_unlock_irqrestore(&priv->lock, flags);
 958 }
 959 #endif  /*  0  */
 960
 961 static void ipw_led_activity_off(struct ipw_priv *priv)
 962 {
 963         unsigned long flags;
 964         u32 led;
 965
 966         if (priv->config & CFG_NO_LED)
 967                 return;
 968
 969         spin_lock_irqsave(&priv->lock, flags);
 970
 971         if (priv->status & STATUS_LED_ACT_ON) {
 972                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 973                 led &= priv->led_activity_off;
 974
 975                 led = ipw_register_toggle(led);
 976
 977                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 978                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 979
 980                 IPW_DEBUG_LED("Activity LED Off\n");
 981
 982                 priv->status &= ~STATUS_LED_ACT_ON;
 983         }
 984
 985         spin_unlock_irqrestore(&priv->lock, flags);
 986 }
 987
 988 static void ipw_bg_led_activity_off(void *data)
 989 {
 990         struct ipw_priv *priv = data;
 991         mutex_lock(&priv->mutex);
 992         ipw_led_activity_off(data);
 993         mutex_unlock(&priv->mutex);
 994 }
 995
 996 static void ipw_led_band_on(struct ipw_priv *priv)
 997 {
 998         unsigned long flags;
 999         u32 led;
1000
1001         /* Only nic type 1 supports mode LEDs */
1002         if (priv->config & CFG_NO_LED ||
1003             priv->nic_type != EEPROM_NIC_TYPE_1 || !priv->assoc_network)
1004                 return;
1005
1006         spin_lock_irqsave(&priv->lock, flags);
1007
1008         led = ipw_read_reg32(priv, IPW_EVENT_REG);
1009         if (priv->assoc_network->mode == IEEE_A) {
1010                 led |= priv->led_ofdm_on;
1011                 led &= priv->led_association_off;
1012                 IPW_DEBUG_LED("Mode LED On: 802.11a\n");
1013         } else if (priv->assoc_network->mode == IEEE_G) {
1014                 led |= priv->led_ofdm_on;
1015                 led |= priv->led_association_on;
1016                 IPW_DEBUG_LED("Mode LED On: 802.11g\n");
1017         } else {
1018                 led &= priv->led_ofdm_off;
1019                 led |= priv->led_association_on;
1020                 IPW_DEBUG_LED("Mode LED On: 802.11b\n");
1021         }
1022
1023         led = ipw_register_toggle(led);
1024
1025         IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1026         ipw_write_reg32(priv, IPW_EVENT_REG, led);
1027
1028         spin_unlock_irqrestore(&priv->lock, flags);
1029 }
1030
1031 static void ipw_led_band_off(struct ipw_priv *priv)
1032 {
1033         unsigned long flags;
1034         u32 led;
1035
1036         /* Only nic type 1 supports mode LEDs */
1037         if (priv->config & CFG_NO_LED || priv->nic_type != EEPROM_NIC_TYPE_1)
1038                 return;
1039
1040         spin_lock_irqsave(&priv->lock, flags);
1041
1042         led = ipw_read_reg32(priv, IPW_EVENT_REG);
1043         led &= priv->led_ofdm_off;
1044         led &= priv->led_association_off;
1045
1046         led = ipw_register_toggle(led);
1047
1048         IPW_DEBUG_LED("Reg: 0x%08X\n", led);
1049         ipw_write_reg32(priv, IPW_EVENT_REG, led);
1050
1051         spin_unlock_irqrestore(&priv->lock, flags);
1052 }
1053
1054 static void ipw_led_radio_on(struct ipw_priv *priv)
1055 {
1056         ipw_led_link_on(priv);
1057 }
1058
1059 static void ipw_led_radio_off(struct ipw_priv *priv)
1060 {
1061         ipw_led_activity_off(priv);
1062         ipw_led_link_off(priv);
1063 }
1064
1065 static void ipw_led_link_up(struct ipw_priv *priv)
1066 {
1067         /* Set the Link Led on for all nic types */
1068         ipw_led_link_on(priv);
1069 }
1070
1071 static void ipw_led_link_down(struct ipw_priv *priv)
1072 {
1073         ipw_led_activity_off(priv);
1074         ipw_led_link_off(priv);
1075
1076         if (priv->status & STATUS_RF_KILL_MASK)
1077                 ipw_led_radio_off(priv);
1078 }
1079
1080 static void ipw_led_init(struct ipw_priv *priv)
1081 {
1082         priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE];
1083
1084         /* Set the default PINs for the link and activity leds */
1085         priv->led_activity_on = IPW_ACTIVITY_LED;
1086         priv->led_activity_off = ~(IPW_ACTIVITY_LED);
1087
1088         priv->led_association_on = IPW_ASSOCIATED_LED;
1089         priv->led_association_off = ~(IPW_ASSOCIATED_LED);
1090
1091         /* Set the default PINs for the OFDM leds */
1092         priv->led_ofdm_on = IPW_OFDM_LED;
1093         priv->led_ofdm_off = ~(IPW_OFDM_LED);
1094
1095         switch (priv->nic_type) {
1096         case EEPROM_NIC_TYPE_1:
1097                 /* In this NIC type, the LEDs are reversed.... */
1098                 priv->led_activity_on = IPW_ASSOCIATED_LED;
1099                 priv->led_activity_off = ~(IPW_ASSOCIATED_LED);
1100                 priv->led_association_on = IPW_ACTIVITY_LED;
1101                 priv->led_association_off = ~(IPW_ACTIVITY_LED);
1102
1103                 if (!(priv->config & CFG_NO_LED))
1104                         ipw_led_band_on(priv);
1105
1106                 /* And we don't blink link LEDs for this nic, so
1107                  * just return here */
1108                 return;
1109
1110         case EEPROM_NIC_TYPE_3:
1111         case EEPROM_NIC_TYPE_2:
1112         case EEPROM_NIC_TYPE_4:
1113         case EEPROM_NIC_TYPE_0:
1114                 break;
1115
1116         default:
1117                 IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n",
1118                                priv->nic_type);
1119                 priv->nic_type = EEPROM_NIC_TYPE_0;
1120                 break;
1121         }
1122
1123         if (!(priv->config & CFG_NO_LED)) {
1124                 if (priv->status & STATUS_ASSOCIATED)
1125                         ipw_led_link_on(priv);
1126                 else
1127                         ipw_led_link_off(priv);
1128         }
1129 }
1130
1131 static void ipw_led_shutdown(struct ipw_priv *priv)
1132 {
1133         ipw_led_activity_off(priv);
1134         ipw_led_link_off(priv);
1135         ipw_led_band_off(priv);
1136         cancel_delayed_work(&priv->led_link_on);
1137         cancel_delayed_work(&priv->led_link_off);
1138         cancel_delayed_work(&priv->led_act_off);
1139 }
1140
1141 /*
1142  * The following adds a new attribute to the sysfs representation
1143  * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
1144  * used for controling the debug level.
1145  *
1146  * See the level definitions in ipw for details.
1147  */
1148 static ssize_t show_debug_level(struct device_driver *d, char *buf)
1149 {
1150         return sprintf(buf, "0x%08X\n", ipw_debug_level);
1151 }
1152
1153 static ssize_t store_debug_level(struct device_driver *d, const char *buf,
1154                                  size_t count)
1155 {
1156         char *p = (char *)buf;
1157         u32 val;
1158
1159         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1160                 p++;
1161                 if (p[0] == 'x' || p[0] == 'X')
1162                         p++;
1163                 val = simple_strtoul(p, &p, 16);
1164         } else
1165                 val = simple_strtoul(p, &p, 10);
1166         if (p == buf)
1167                 printk(KERN_INFO DRV_NAME
1168                        ": %s is not in hex or decimal form.\n", buf);
1169         else
1170                 ipw_debug_level = val;
1171
1172         return strnlen(buf, count);
1173 }
1174
1175 static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
1176                    show_debug_level, store_debug_level);
1177
1178 static inline u32 ipw_get_event_log_len(struct ipw_priv *priv)
1179 {
1180         /* length = 1st dword in log */
1181         return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG));
1182 }
1183
1184 static void ipw_capture_event_log(struct ipw_priv *priv,
1185                                   u32 log_len, struct ipw_event *log)
1186 {
1187         u32 base;
1188
1189         if (log_len) {
1190                 base = ipw_read32(priv, IPW_EVENT_LOG);
1191                 ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32),
1192                                   (u8 *) log, sizeof(*log) * log_len);
1193         }
1194 }
1195
1196 static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv)
1197 {
1198         struct ipw_fw_error *error;
1199         u32 log_len = ipw_get_event_log_len(priv);
1200         u32 base = ipw_read32(priv, IPW_ERROR_LOG);
1201         u32 elem_len = ipw_read_reg32(priv, base);
1202
1203         error = kmalloc(sizeof(*error) +
1204                         sizeof(*error->elem) * elem_len +
1205                         sizeof(*error->log) * log_len, GFP_ATOMIC);
1206         if (!error) {
1207                 IPW_ERROR("Memory allocation for firmware error log "
1208                           "failed.\n");
1209                 return NULL;
1210         }
1211         error->jiffies = jiffies;
1212         error->status = priv->status;
1213         error->config = priv->config;
1214         error->elem_len = elem_len;
1215         error->log_len = log_len;
1216         error->elem = (struct ipw_error_elem *)error->payload;
1217         error->log = (struct ipw_event *)(error->elem + elem_len);
1218
1219         ipw_capture_event_log(priv, log_len, error->log);
1220
1221         if (elem_len)
1222                 ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem,
1223                                   sizeof(*error->elem) * elem_len);
1224
1225         return error;
1226 }
1227
1228 static ssize_t show_event_log(struct device *d,
1229                               struct device_attribute *attr, char *buf)
1230 {
1231         struct ipw_priv *priv = dev_get_drvdata(d);
1232         u32 log_len = ipw_get_event_log_len(priv);
1233         struct ipw_event log[log_len];
1234         u32 len = 0, i;
1235
1236         ipw_capture_event_log(priv, log_len, log);
1237
1238         len += snprintf(buf + len, PAGE_SIZE - len, "%08X", log_len);
1239         for (i = 0; i < log_len; i++)
1240                 len += snprintf(buf + len, PAGE_SIZE - len,
1241                                 "\n%08X%08X%08X",
1242                                 log[i].time, log[i].event, log[i].data);
1243         len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1244         return len;
1245 }
1246
1247 static DEVICE_ATTR(event_log, S_IRUGO, show_event_log, NULL);
1248
1249 static ssize_t show_error(struct device *d,
1250                           struct device_attribute *attr, char *buf)
1251 {
1252         struct ipw_priv *priv = dev_get_drvdata(d);
1253         u32 len = 0, i;
1254         if (!priv->error)
1255                 return 0;
1256         len += snprintf(buf + len, PAGE_SIZE - len,
1257                         "%08lX%08X%08X%08X",
1258                         priv->error->jiffies,
1259                         priv->error->status,
1260                         priv->error->config, priv->error->elem_len);
1261         for (i = 0; i < priv->error->elem_len; i++)
1262                 len += snprintf(buf + len, PAGE_SIZE - len,
1263                                 "\n%08X%08X%08X%08X%08X%08X%08X",
1264                                 priv->error->elem[i].time,
1265                                 priv->error->elem[i].desc,
1266                                 priv->error->elem[i].blink1,
1267                                 priv->error->elem[i].blink2,
1268                                 priv->error->elem[i].link1,
1269                                 priv->error->elem[i].link2,
1270                                 priv->error->elem[i].data);
1271
1272         len += snprintf(buf + len, PAGE_SIZE - len,
1273                         "\n%08X", priv->error->log_len);
1274         for (i = 0; i < priv->error->log_len; i++)
1275                 len += snprintf(buf + len, PAGE_SIZE - len,
1276                                 "\n%08X%08X%08X",
1277                                 priv->error->log[i].time,
1278                                 priv->error->log[i].event,
1279                                 priv->error->log[i].data);
1280         len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1281         return len;
1282 }
1283
1284 static ssize_t clear_error(struct device *d,
1285                            struct device_attribute *attr,
1286                            const char *buf, size_t count)
1287 {
1288         struct ipw_priv *priv = dev_get_drvdata(d);
1289
1290         kfree(priv->error);
1291         priv->error = NULL;
1292         return count;
1293 }
1294
1295 static DEVICE_ATTR(error, S_IRUGO | S_IWUSR, show_error, clear_error);
1296
1297 static ssize_t show_cmd_log(struct device *d,
1298                             struct device_attribute *attr, char *buf)
1299 {
1300         struct ipw_priv *priv = dev_get_drvdata(d);
1301         u32 len = 0, i;
1302         if (!priv->cmdlog)
1303                 return 0;
1304         for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len;
1305              (i != priv->cmdlog_pos) && (PAGE_SIZE - len);
1306              i = (i + 1) % priv->cmdlog_len) {
1307                 len +=
1308                     snprintf(buf + len, PAGE_SIZE - len,
1309                              "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies,
1310                              priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd,
1311                              priv->cmdlog[i].cmd.len);
1312                 len +=
1313                     snprintk_buf(buf + len, PAGE_SIZE - len,
1314                                  (u8 *) priv->cmdlog[i].cmd.param,
1315                                  priv->cmdlog[i].cmd.len);
1316                 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1317         }
1318         len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1319         return len;
1320 }
1321
1322 static DEVICE_ATTR(cmd_log, S_IRUGO, show_cmd_log, NULL);
1323
1324 #ifdef CONFIG_IPW2200_PROMISCUOUS
1325 static void ipw_prom_free(struct ipw_priv *priv);
1326 static int ipw_prom_alloc(struct ipw_priv *priv);
1327 static ssize_t store_rtap_iface(struct device *d,
1328                          struct device_attribute *attr,
1329                          const char *buf, size_t count)
1330 {
1331         struct ipw_priv *priv = dev_get_drvdata(d);
1332         int rc = 0;
1333
1334         if (count < 1)
1335                 return -EINVAL;
1336
1337         switch (buf[0]) {
1338         case '0':
1339                 if (!rtap_iface)
1340                         return count;
1341
1342                 if (netif_running(priv->prom_net_dev)) {
1343                         IPW_WARNING("Interface is up.  Cannot unregister.\n");
1344                         return count;
1345                 }
1346
1347                 ipw_prom_free(priv);
1348                 rtap_iface = 0;
1349                 break;
1350
1351         case '1':
1352                 if (rtap_iface)
1353                         return count;
1354
1355                 rc = ipw_prom_alloc(priv);
1356                 if (!rc)
1357                         rtap_iface = 1;
1358                 break;
1359
1360         default:
1361                 return -EINVAL;
1362         }
1363
1364         if (rc) {
1365                 IPW_ERROR("Failed to register promiscuous network "
1366                           "device (error %d).\n", rc);
1367         }
1368
1369         return count;
1370 }
1371
1372 static ssize_t show_rtap_iface(struct device *d,
1373                         struct device_attribute *attr,
1374                         char *buf)
1375 {
1376         struct ipw_priv *priv = dev_get_drvdata(d);
1377         if (rtap_iface)
1378                 return sprintf(buf, "%s", priv->prom_net_dev->name);
1379         else {
1380                 buf[0] = '-';
1381                 buf[1] = '1';
1382                 buf[2] = '\0';
1383                 return 3;
1384         }
1385 }
1386
1387 static DEVICE_ATTR(rtap_iface, S_IWUSR | S_IRUSR, show_rtap_iface,
1388                    store_rtap_iface);
1389
1390 static ssize_t store_rtap_filter(struct device *d,
1391                          struct device_attribute *attr,
1392                          const char *buf, size_t count)
1393 {
1394         struct ipw_priv *priv = dev_get_drvdata(d);
1395
1396         if (!priv->prom_priv) {
1397                 IPW_ERROR("Attempting to set filter without "
1398                           "rtap_iface enabled.\n");
1399                 return -EPERM;
1400         }
1401
1402         priv->prom_priv->filter = simple_strtol(buf, NULL, 0);
1403
1404         IPW_DEBUG_INFO("Setting rtap filter to " BIT_FMT16 "\n",
1405                        BIT_ARG16(priv->prom_priv->filter));
1406
1407         return count;
1408 }
1409
1410 static ssize_t show_rtap_filter(struct device *d,
1411                         struct device_attribute *attr,
1412                         char *buf)
1413 {
1414         struct ipw_priv *priv = dev_get_drvdata(d);
1415         return sprintf(buf, "0x%04X",
1416                        priv->prom_priv ? priv->prom_priv->filter : 0);
1417 }
1418
1419 static DEVICE_ATTR(rtap_filter, S_IWUSR | S_IRUSR, show_rtap_filter,
1420                    store_rtap_filter);
1421 #endif
1422
1423 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
1424                              char *buf)
1425 {
1426         struct ipw_priv *priv = dev_get_drvdata(d);
1427         return sprintf(buf, "%d\n", priv->ieee->scan_age);
1428 }
1429
1430 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
1431                               const char *buf, size_t count)
1432 {
1433         struct ipw_priv *priv = dev_get_drvdata(d);
1434         struct net_device *dev = priv->net_dev;
1435         char buffer[] = "00000000";
1436         unsigned long len =
1437             (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
1438         unsigned long val;
1439         char *p = buffer;
1440
1441         IPW_DEBUG_INFO("enter\n");
1442
1443         strncpy(buffer, buf, len);
1444         buffer[len] = 0;
1445
1446         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1447                 p++;
1448                 if (p[0] == 'x' || p[0] == 'X')
1449                         p++;
1450                 val = simple_strtoul(p, &p, 16);
1451         } else
1452                 val = simple_strtoul(p, &p, 10);
1453         if (p == buffer) {
1454                 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
1455         } else {
1456                 priv->ieee->scan_age = val;
1457                 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
1458         }
1459
1460         IPW_DEBUG_INFO("exit\n");
1461         return len;
1462 }
1463
1464 static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);
1465
1466 static ssize_t show_led(struct device *d, struct device_attribute *attr,
1467                         char *buf)
1468 {
1469         struct ipw_priv *priv = dev_get_drvdata(d);
1470         return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1);
1471 }
1472
1473 static ssize_t store_led(struct device *d, struct device_attribute *attr,
1474                          const char *buf, size_t count)
1475 {
1476         struct ipw_priv *priv = dev_get_drvdata(d);
1477
1478         IPW_DEBUG_INFO("enter\n");
1479
1480         if (count == 0)
1481                 return 0;
1482
1483         if (*buf == 0) {
1484                 IPW_DEBUG_LED("Disabling LED control.\n");
1485                 priv->config |= CFG_NO_LED;
1486                 ipw_led_shutdown(priv);
1487         } else {
1488                 IPW_DEBUG_LED("Enabling LED control.\n");
1489                 priv->config &= ~CFG_NO_LED;
1490                 ipw_led_init(priv);
1491         }
1492
1493         IPW_DEBUG_INFO("exit\n");
1494         return count;
1495 }
1496
1497 static DEVICE_ATTR(led, S_IWUSR | S_IRUGO, show_led, store_led);
1498
1499 static ssize_t show_status(struct device *d,
1500                            struct device_attribute *attr, char *buf)
1501 {
1502         struct ipw_priv *p = d->driver_data;
1503         return sprintf(buf, "0x%08x\n", (int)p->status);
1504 }
1505
1506 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
1507
1508 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
1509                         char *buf)
1510 {
1511         struct ipw_priv *p = d->driver_data;
1512         return sprintf(buf, "0x%08x\n", (int)p->config);
1513 }
1514
1515 static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
1516
1517 static ssize_t show_nic_type(struct device *d,
1518                              struct device_attribute *attr, char *buf)
1519 {
1520         struct ipw_priv *priv = d->driver_data;
1521         return sprintf(buf, "TYPE: %d\n", priv->nic_type);
1522 }
1523
1524 static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL);
1525
1526 static ssize_t show_ucode_version(struct device *d,
1527                                   struct device_attribute *attr, char *buf)
1528 {
1529         u32 len = sizeof(u32), tmp = 0;
1530         struct ipw_priv *p = d->driver_data;
1531
1532         if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len))
1533                 return 0;
1534
1535         return sprintf(buf, "0x%08x\n", tmp);
1536 }
1537
1538 static DEVICE_ATTR(ucode_version, S_IWUSR | S_IRUGO, show_ucode_version, NULL);
1539
1540 static ssize_t show_rtc(struct device *d, struct device_attribute *attr,
1541                         char *buf)
1542 {
1543         u32 len = sizeof(u32), tmp = 0;
1544         struct ipw_priv *p = d->driver_data;
1545
1546         if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len))
1547                 return 0;
1548
1549         return sprintf(buf, "0x%08x\n", tmp);
1550 }
1551
1552 static DEVICE_ATTR(rtc, S_IWUSR | S_IRUGO, show_rtc, NULL);
1553
1554 /*
1555  * Add a device attribute to view/control the delay between eeprom
1556  * operations.
1557  */
1558 static ssize_t show_eeprom_delay(struct device *d,
1559                                  struct device_attribute *attr, char *buf)
1560 {
1561         int n = ((struct ipw_priv *)d->driver_data)->eeprom_delay;
1562         return sprintf(buf, "%i\n", n);
1563 }
1564 static ssize_t store_eeprom_delay(struct device *d,
1565                                   struct device_attribute *attr,
1566                                   const char *buf, size_t count)
1567 {
1568         struct ipw_priv *p = d->driver_data;
1569         sscanf(buf, "%i", &p->eeprom_delay);
1570         return strnlen(buf, count);
1571 }
1572
1573 static DEVICE_ATTR(eeprom_delay, S_IWUSR | S_IRUGO,
1574                    show_eeprom_delay, store_eeprom_delay);
1575
1576 static ssize_t show_command_event_reg(struct device *d,
1577                                       struct device_attribute *attr, char *buf)
1578 {
1579         u32 reg = 0;
1580         struct ipw_priv *p = d->driver_data;
1581
1582         reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT);
1583         return sprintf(buf, "0x%08x\n", reg);
1584 }
1585 static ssize_t store_command_event_reg(struct device *d,
1586                                        struct device_attribute *attr,
1587                                        const char *buf, size_t count)
1588 {
1589         u32 reg;
1590         struct ipw_priv *p = d->driver_data;
1591
1592         sscanf(buf, "%x", &reg);
1593         ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg);
1594         return strnlen(buf, count);
1595 }
1596
1597 static DEVICE_ATTR(command_event_reg, S_IWUSR | S_IRUGO,
1598                    show_command_event_reg, store_command_event_reg);
1599
1600 static ssize_t show_mem_gpio_reg(struct device *d,
1601                                  struct device_attribute *attr, char *buf)
1602 {
1603         u32 reg = 0;
1604         struct ipw_priv *p = d->driver_data;
1605
1606         reg = ipw_read_reg32(p, 0x301100);
1607         return sprintf(buf, "0x%08x\n", reg);
1608 }
1609 static ssize_t store_mem_gpio_reg(struct device *d,
1610                                   struct device_attribute *attr,
1611                                   const char *buf, size_t count)
1612 {
1613         u32 reg;
1614         struct ipw_priv *p = d->driver_data;
1615
1616         sscanf(buf, "%x", &reg);
1617         ipw_write_reg32(p, 0x301100, reg);
1618         return strnlen(buf, count);
1619 }
1620
1621 static DEVICE_ATTR(mem_gpio_reg, S_IWUSR | S_IRUGO,
1622                    show_mem_gpio_reg, store_mem_gpio_reg);
1623
1624 static ssize_t show_indirect_dword(struct device *d,
1625                                    struct device_attribute *attr, char *buf)
1626 {
1627         u32 reg = 0;
1628         struct ipw_priv *priv = d->driver_data;
1629
1630         if (priv->status & STATUS_INDIRECT_DWORD)
1631                 reg = ipw_read_reg32(priv, priv->indirect_dword);
1632         else
1633                 reg = 0;
1634
1635         return sprintf(buf, "0x%08x\n", reg);
1636 }
1637 static ssize_t store_indirect_dword(struct device *d,
1638                                     struct device_attribute *attr,
1639                                     const char *buf, size_t count)
1640 {
1641         struct ipw_priv *priv = d->driver_data;
1642
1643         sscanf(buf, "%x", &priv->indirect_dword);
1644         priv->status |= STATUS_INDIRECT_DWORD;
1645         return strnlen(buf, count);
1646 }
1647
1648 static DEVICE_ATTR(indirect_dword, S_IWUSR | S_IRUGO,
1649                    show_indirect_dword, store_indirect_dword);
1650
1651 static ssize_t show_indirect_byte(struct device *d,
1652                                   struct device_attribute *attr, char *buf)
1653 {
1654         u8 reg = 0;
1655         struct ipw_priv *priv = d->driver_data;
1656
1657         if (priv->status & STATUS_INDIRECT_BYTE)
1658                 reg = ipw_read_reg8(priv, priv->indirect_byte);
1659         else
1660                 reg = 0;
1661
1662         return sprintf(buf, "0x%02x\n", reg);
1663 }
1664 static ssize_t store_indirect_byte(struct device *d,
1665                                    struct device_attribute *attr,
1666                                    const char *buf, size_t count)
1667 {
1668         struct ipw_priv *priv = d->driver_data;
1669
1670         sscanf(buf, "%x", &priv->indirect_byte);
1671         priv->status |= STATUS_INDIRECT_BYTE;
1672         return strnlen(buf, count);
1673 }
1674
1675 static DEVICE_ATTR(indirect_byte, S_IWUSR | S_IRUGO,
1676                    show_indirect_byte, store_indirect_byte);
1677
1678 static ssize_t show_direct_dword(struct device *d,
1679                                  struct device_attribute *attr, char *buf)
1680 {
1681         u32 reg = 0;
1682         struct ipw_priv *priv = d->driver_data;
1683
1684         if (priv->status & STATUS_DIRECT_DWORD)
1685                 reg = ipw_read32(priv, priv->direct_dword);
1686         else
1687                 reg = 0;
1688
1689         return sprintf(buf, "0x%08x\n", reg);
1690 }
1691 static ssize_t store_direct_dword(struct device *d,
1692                                   struct device_attribute *attr,
1693                                   const char *buf, size_t count)
1694 {
1695         struct ipw_priv *priv = d->driver_data;
1696
1697         sscanf(buf, "%x", &priv->direct_dword);
1698         priv->status |= STATUS_DIRECT_DWORD;
1699         return strnlen(buf, count);
1700 }
1701
1702 static DEVICE_ATTR(direct_dword, S_IWUSR | S_IRUGO,
1703                    show_direct_dword, store_direct_dword);
1704
1705 static int rf_kill_active(struct ipw_priv *priv)
1706 {
1707         if (0 == (ipw_read32(priv, 0x30) & 0x10000))
1708                 priv->status |= STATUS_RF_KILL_HW;
1709         else
1710                 priv->status &= ~STATUS_RF_KILL_HW;
1711
1712         return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0;
1713 }
1714
1715 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
1716                             char *buf)
1717 {
1718         /* 0 - RF kill not enabled
1719            1 - SW based RF kill active (sysfs)
1720            2 - HW based RF kill active
1721            3 - Both HW and SW baed RF kill active */
1722         struct ipw_priv *priv = d->driver_data;
1723         int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
1724             (rf_kill_active(priv) ? 0x2 : 0x0);
1725         return sprintf(buf, "%i\n", val);
1726 }
1727
1728 static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio)
1729 {
1730         if ((disable_radio ? 1 : 0) ==
1731             ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0))
1732                 return 0;
1733
1734         IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO  %s\n",
1735                           disable_radio ? "OFF" : "ON");
1736
1737         if (disable_radio) {
1738                 priv->status |= STATUS_RF_KILL_SW;
1739
1740                 if (priv->workqueue)
1741                         cancel_delayed_work(&priv->request_scan);
1742                 queue_work(priv->workqueue, &priv->down);
1743         } else {
1744                 priv->status &= ~STATUS_RF_KILL_SW;
1745                 if (rf_kill_active(priv)) {
1746                         IPW_DEBUG_RF_KILL("Can not turn radio back on - "
1747                                           "disabled by HW switch\n");
1748                         /* Make sure the RF_KILL check timer is running */
1749                         cancel_delayed_work(&priv->rf_kill);
1750                         queue_delayed_work(priv->workqueue, &priv->rf_kill,
1751                                            2 * HZ);
1752                 } else
1753                         queue_work(priv->workqueue, &priv->up);
1754         }
1755
1756         return 1;
1757 }
1758
1759 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
1760                              const char *buf, size_t count)
1761 {
1762         struct ipw_priv *priv = d->driver_data;
1763
1764         ipw_radio_kill_sw(priv, buf[0] == '1');
1765
1766         return count;
1767 }
1768
1769 static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
1770
1771 static ssize_t show_speed_scan(struct device *d, struct device_attribute *attr,
1772                                char *buf)
1773 {
1774         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1775         int pos = 0, len = 0;
1776         if (priv->config & CFG_SPEED_SCAN) {
1777                 while (priv->speed_scan[pos] != 0)
1778                         len += sprintf(&buf[len], "%d ",
1779                                        priv->speed_scan[pos++]);
1780                 return len + sprintf(&buf[len], "\n");
1781         }
1782
1783         return sprintf(buf, "0\n");
1784 }
1785
1786 static ssize_t store_speed_scan(struct device *d, struct device_attribute *attr,
1787                                 const char *buf, size_t count)
1788 {
1789         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1790         int channel, pos = 0;
1791         const char *p = buf;
1792
1793         /* list of space separated channels to scan, optionally ending with 0 */
1794         while ((channel = simple_strtol(p, NULL, 0))) {
1795                 if (pos == MAX_SPEED_SCAN - 1) {
1796                         priv->speed_scan[pos] = 0;
1797                         break;
1798                 }
1799
1800                 if (ieee80211_is_valid_channel(priv->ieee, channel))
1801                         priv->speed_scan[pos++] = channel;
1802                 else
1803                         IPW_WARNING("Skipping invalid channel request: %d\n",
1804                                     channel);
1805                 p = strchr(p, ' ');
1806                 if (!p)
1807                         break;
1808                 while (*p == ' ' || *p == '\t')
1809                         p++;
1810         }
1811
1812         if (pos == 0)
1813                 priv->config &= ~CFG_SPEED_SCAN;
1814         else {
1815                 priv->speed_scan_pos = 0;
1816                 priv->config |= CFG_SPEED_SCAN;
1817         }
1818
1819         return count;
1820 }
1821
1822 static DEVICE_ATTR(speed_scan, S_IWUSR | S_IRUGO, show_speed_scan,
1823                    store_speed_scan);
1824
1825 static ssize_t show_net_stats(struct device *d, struct device_attribute *attr,
1826                               char *buf)
1827 {
1828         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1829         return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? '1' : '0');
1830 }
1831
1832 static ssize_t store_net_stats(struct device *d, struct device_attribute *attr,
1833                                const char *buf, size_t count)
1834 {
1835         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1836         if (buf[0] == '1')
1837                 priv->config |= CFG_NET_STATS;
1838         else
1839                 priv->config &= ~CFG_NET_STATS;
1840
1841         return count;
1842 }
1843
1844 static DEVICE_ATTR(net_stats, S_IWUSR | S_IRUGO,
1845                    show_net_stats, store_net_stats);
1846
1847 static void notify_wx_assoc_event(struct ipw_priv *priv)
1848 {
1849         union iwreq_data wrqu;
1850         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1851         if (priv->status & STATUS_ASSOCIATED)
1852                 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
1853         else
1854                 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1855         wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1856 }
1857
1858 static void ipw_irq_tasklet(struct ipw_priv *priv)
1859 {
1860         u32 inta, inta_mask, handled = 0;
1861         unsigned long flags;
1862         int rc = 0;
1863
1864         spin_lock_irqsave(&priv->irq_lock, flags);
1865
1866         inta = ipw_read32(priv, IPW_INTA_RW);
1867         inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
1868         inta &= (IPW_INTA_MASK_ALL & inta_mask);
1869
1870         /* Add any cached INTA values that need to be handled */
1871         inta |= priv->isr_inta;
1872
1873         spin_unlock_irqrestore(&priv->irq_lock, flags);
1874
1875         spin_lock_irqsave(&priv->lock, flags);
1876
1877         /* handle all the justifications for the interrupt */
1878         if (inta & IPW_INTA_BIT_RX_TRANSFER) {
1879                 ipw_rx(priv);
1880                 handled |= IPW_INTA_BIT_RX_TRANSFER;
1881         }
1882
1883         if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) {
1884                 IPW_DEBUG_HC("Command completed.\n");
1885                 rc = ipw_queue_tx_reclaim(priv, &priv->txq_cmd, -1);
1886                 priv->status &= ~STATUS_HCMD_ACTIVE;
1887                 wake_up_interruptible(&priv->wait_command_queue);
1888                 handled |= IPW_INTA_BIT_TX_CMD_QUEUE;
1889         }
1890
1891         if (inta & IPW_INTA_BIT_TX_QUEUE_1) {
1892                 IPW_DEBUG_TX("TX_QUEUE_1\n");
1893                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[0], 0);
1894                 handled |= IPW_INTA_BIT_TX_QUEUE_1;
1895         }
1896
1897         if (inta & IPW_INTA_BIT_TX_QUEUE_2) {
1898                 IPW_DEBUG_TX("TX_QUEUE_2\n");
1899                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[1], 1);
1900                 handled |= IPW_INTA_BIT_TX_QUEUE_2;
1901         }
1902
1903         if (inta & IPW_INTA_BIT_TX_QUEUE_3) {
1904                 IPW_DEBUG_TX("TX_QUEUE_3\n");
1905                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[2], 2);
1906                 handled |= IPW_INTA_BIT_TX_QUEUE_3;
1907         }
1908
1909         if (inta & IPW_INTA_BIT_TX_QUEUE_4) {
1910                 IPW_DEBUG_TX("TX_QUEUE_4\n");
1911                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[3], 3);
1912                 handled |= IPW_INTA_BIT_TX_QUEUE_4;
1913         }
1914
1915         if (inta & IPW_INTA_BIT_STATUS_CHANGE) {
1916                 IPW_WARNING("STATUS_CHANGE\n");
1917                 handled |= IPW_INTA_BIT_STATUS_CHANGE;
1918         }
1919
1920         if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) {
1921                 IPW_WARNING("TX_PERIOD_EXPIRED\n");
1922                 handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED;
1923         }
1924
1925         if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) {
1926                 IPW_WARNING("HOST_CMD_DONE\n");
1927                 handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE;
1928         }
1929
1930         if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) {
1931                 IPW_WARNING("FW_INITIALIZATION_DONE\n");
1932                 handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE;
1933         }
1934
1935         if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) {
1936                 IPW_WARNING("PHY_OFF_DONE\n");
1937                 handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE;
1938         }
1939
1940         if (inta & IPW_INTA_BIT_RF_KILL_DONE) {
1941                 IPW_DEBUG_RF_KILL("RF_KILL_DONE\n");
1942                 priv->status |= STATUS_RF_KILL_HW;
1943                 wake_up_interruptible(&priv->wait_command_queue);
1944                 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1945                 cancel_delayed_work(&priv->request_scan);
1946                 schedule_work(&priv->link_down);
1947                 queue_delayed_work(priv->workqueue, &priv->rf_kill, 2 * HZ);
1948                 handled |= IPW_INTA_BIT_RF_KILL_DONE;
1949         }
1950
1951         if (inta & IPW_INTA_BIT_FATAL_ERROR) {
1952                 IPW_WARNING("Firmware error detected.  Restarting.\n");
1953                 if (priv->error) {
1954                         IPW_DEBUG_FW("Sysfs 'error' log already exists.\n");
1955                         if (ipw_debug_level & IPW_DL_FW_ERRORS) {
1956                                 struct ipw_fw_error *error =
1957                                     ipw_alloc_error_log(priv);
1958                                 ipw_dump_error_log(priv, error);
1959                                 kfree(error);
1960                         }
1961                 } else {
1962                         priv->error = ipw_alloc_error_log(priv);
1963                         if (priv->error)
1964                                 IPW_DEBUG_FW("Sysfs 'error' log captured.\n");
1965                         else
1966                                 IPW_DEBUG_FW("Error allocating sysfs 'error' "
1967                                              "log.\n");
1968                         if (ipw_debug_level & IPW_DL_FW_ERRORS)
1969                                 ipw_dump_error_log(priv, priv->error);
1970                 }
1971
1972                 /* XXX: If hardware encryption is for WPA/WPA2,
1973                  * we have to notify the supplicant. */
1974                 if (priv->ieee->sec.encrypt) {
1975                         priv->status &= ~STATUS_ASSOCIATED;
1976                         notify_wx_assoc_event(priv);
1977                 }
1978
1979                 /* Keep the restart process from trying to send host
1980                  * commands by clearing the INIT status bit */
1981                 priv->status &= ~STATUS_INIT;
1982
1983                 /* Cancel currently queued command. */
1984                 priv->status &= ~STATUS_HCMD_ACTIVE;
1985                 wake_up_interruptible(&priv->wait_command_queue);
1986
1987                 queue_work(priv->workqueue, &priv->adapter_restart);
1988                 handled |= IPW_INTA_BIT_FATAL_ERROR;
1989         }
1990
1991         if (inta & IPW_INTA_BIT_PARITY_ERROR) {
1992                 IPW_ERROR("Parity error\n");
1993                 handled |= IPW_INTA_BIT_PARITY_ERROR;
1994         }
1995
1996         if (handled != inta) {
1997                 IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
1998         }
1999
2000         spin_unlock_irqrestore(&priv->lock, flags);
2001
2002         /* enable all interrupts */
2003         ipw_enable_interrupts(priv);
2004 }
2005
2006 #define IPW_CMD(x) case IPW_CMD_ ## x : return #x
2007 static char *get_cmd_string(u8 cmd)
2008 {
2009         switch (cmd) {
2010                 IPW_CMD(HOST_COMPLETE);
2011                 IPW_CMD(POWER_DOWN);
2012                 IPW_CMD(SYSTEM_CONFIG);
2013                 IPW_CMD(MULTICAST_ADDRESS);
2014                 IPW_CMD(SSID);
2015                 IPW_CMD(ADAPTER_ADDRESS);
2016                 IPW_CMD(PORT_TYPE);
2017                 IPW_CMD(RTS_THRESHOLD);
2018                 IPW_CMD(FRAG_THRESHOLD);
2019                 IPW_CMD(POWER_MODE);
2020                 IPW_CMD(WEP_KEY);
2021                 IPW_CMD(TGI_TX_KEY);
2022                 IPW_CMD(SCAN_REQUEST);
2023                 IPW_CMD(SCAN_REQUEST_EXT);
2024                 IPW_CMD(ASSOCIATE);
2025                 IPW_CMD(SUPPORTED_RATES);
2026                 IPW_CMD(SCAN_ABORT);
2027                 IPW_CMD(TX_FLUSH);
2028                 IPW_CMD(QOS_PARAMETERS);
2029                 IPW_CMD(DINO_CONFIG);
2030                 IPW_CMD(RSN_CAPABILITIES);
2031                 IPW_CMD(RX_KEY);
2032                 IPW_CMD(CARD_DISABLE);
2033                 IPW_CMD(SEED_NUMBER);
2034                 IPW_CMD(TX_POWER);
2035                 IPW_CMD(COUNTRY_INFO);
2036                 IPW_CMD(AIRONET_INFO);
2037                 IPW_CMD(AP_TX_POWER);
2038                 IPW_CMD(CCKM_INFO);
2039                 IPW_CMD(CCX_VER_INFO);
2040                 IPW_CMD(SET_CALIBRATION);
2041                 IPW_CMD(SENSITIVITY_CALIB);
2042                 IPW_CMD(RETRY_LIMIT);
2043                 IPW_CMD(IPW_PRE_POWER_DOWN);
2044                 IPW_CMD(VAP_BEACON_TEMPLATE);
2045                 IPW_CMD(VAP_DTIM_PERIOD);
2046                 IPW_CMD(EXT_SUPPORTED_RATES);
2047                 IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT);
2048                 IPW_CMD(VAP_QUIET_INTERVALS);
2049                 IPW_CMD(VAP_CHANNEL_SWITCH);
2050                 IPW_CMD(VAP_MANDATORY_CHANNELS);
2051                 IPW_CMD(VAP_CELL_PWR_LIMIT);
2052                 IPW_CMD(VAP_CF_PARAM_SET);
2053                 IPW_CMD(VAP_SET_BEACONING_STATE);
2054                 IPW_CMD(MEASUREMENT);
2055                 IPW_CMD(POWER_CAPABILITY);
2056                 IPW_CMD(SUPPORTED_CHANNELS);
2057                 IPW_CMD(TPC_REPORT);
2058                 IPW_CMD(WME_INFO);
2059                 IPW_CMD(PRODUCTION_COMMAND);
2060         default:
2061                 return "UNKNOWN";
2062         }
2063 }
2064
2065 #define HOST_COMPLETE_TIMEOUT HZ
2066
2067 static int __ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
2068 {
2069         int rc = 0;
2070         unsigned long flags;
2071
2072         spin_lock_irqsave(&priv->lock, flags);
2073         if (priv->status & STATUS_HCMD_ACTIVE) {
2074                 IPW_ERROR("Failed to send %s: Already sending a command.\n",
2075                           get_cmd_string(cmd->cmd));
2076                 spin_unlock_irqrestore(&priv->lock, flags);
2077                 return -EAGAIN;
2078         }
2079
2080         priv->status |= STATUS_HCMD_ACTIVE;
2081
2082         if (priv->cmdlog) {
2083                 priv->cmdlog[priv->cmdlog_pos].jiffies = jiffies;
2084                 priv->cmdlog[priv->cmdlog_pos].cmd.cmd = cmd->cmd;
2085                 priv->cmdlog[priv->cmdlog_pos].cmd.len = cmd->len;
2086                 memcpy(priv->cmdlog[priv->cmdlog_pos].cmd.param, cmd->param,
2087                        cmd->len);
2088                 priv->cmdlog[priv->cmdlog_pos].retcode = -1;
2089         }
2090
2091         IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n",
2092                      get_cmd_string(cmd->cmd), cmd->cmd, cmd->len,
2093                      priv->status);
2094
2095 #ifndef DEBUG_CMD_WEP_KEY
2096         if (cmd->cmd == IPW_CMD_WEP_KEY)
2097                 IPW_DEBUG_HC("WEP_KEY command masked out for secure.\n");
2098         else
2099 #endif
2100                 printk_buf(IPW_DL_HOST_COMMAND, (u8 *) cmd->param, cmd->len);
2101
2102         rc = ipw_queue_tx_hcmd(priv, cmd->cmd, cmd->param, cmd->len, 0);
2103         if (rc) {
2104                 priv->status &= ~STATUS_HCMD_ACTIVE;
2105                 IPW_ERROR("Failed to send %s: Reason %d\n",
2106                           get_cmd_string(cmd->cmd), rc);
2107                 spin_unlock_irqrestore(&priv->lock, flags);
2108                 goto exit;
2109         }
2110         spin_unlock_irqrestore(&priv->lock, flags);
2111
2112         rc = wait_event_interruptible_timeout(priv->wait_command_queue,
2113                                               !(priv->
2114                                                 status & STATUS_HCMD_ACTIVE),
2115                                               HOST_COMPLETE_TIMEOUT);
2116         if (rc == 0) {
2117                 spin_lock_irqsave(&priv->lock, flags);
2118                 if (priv->status & STATUS_HCMD_ACTIVE) {
2119                         IPW_ERROR("Failed to send %s: Command timed out.\n",
2120                                   get_cmd_string(cmd->cmd));
2121                         priv->status &= ~STATUS_HCMD_ACTIVE;
2122                         spin_unlock_irqrestore(&priv->lock, flags);
2123                         rc = -EIO;
2124                         goto exit;
2125                 }
2126                 spin_unlock_irqrestore(&priv->lock, flags);
2127         } else
2128                 rc = 0;
2129
2130         if (priv->status & STATUS_RF_KILL_HW) {
2131                 IPW_ERROR("Failed to send %s: Aborted due to RF kill switch.\n",
2132                           get_cmd_string(cmd->cmd));
2133                 rc = -EIO;
2134                 goto exit;
2135         }
2136
2137       exit:
2138         if (priv->cmdlog) {
2139                 priv->cmdlog[priv->cmdlog_pos++].retcode = rc;
2140                 priv->cmdlog_pos %= priv->cmdlog_len;
2141         }
2142         return rc;
2143 }
2144
2145 static int ipw_send_cmd_simple(struct ipw_priv *priv, u8 command)
2146 {
2147         struct host_cmd cmd = {
2148                 .cmd = command,
2149         };
2150
2151         return __ipw_send_cmd(priv, &cmd);
2152 }
2153
2154 static int ipw_send_cmd_pdu(struct ipw_priv *priv, u8 command, u8 len,
2155                             void *data)
2156 {
2157         struct host_cmd cmd = {
2158                 .cmd = command,
2159                 .len = len,
2160                 .param = data,
2161         };
2162
2163         return __ipw_send_cmd(priv, &cmd);
2164 }
2165
2166 static int ipw_send_host_complete(struct ipw_priv *priv)
2167 {
2168         if (!priv) {
2169                 IPW_ERROR("Invalid args\n");
2170                 return -1;
2171         }
2172
2173         return ipw_send_cmd_simple(priv, IPW_CMD_HOST_COMPLETE);
2174 }
2175
2176 static int ipw_send_system_config(struct ipw_priv *priv)
2177 {
2178         return ipw_send_cmd_pdu(priv, IPW_CMD_SYSTEM_CONFIG,
2179                                 sizeof(priv->sys_config),
2180                                 &priv->sys_config);
2181 }
2182
2183 static int ipw_send_ssid(struct ipw_priv *priv, u8 * ssid, int len)
2184 {
2185         if (!priv || !ssid) {
2186                 IPW_ERROR("Invalid args\n");
2187                 return -1;
2188         }
2189
2190         return ipw_send_cmd_pdu(priv, IPW_CMD_SSID, min(len, IW_ESSID_MAX_SIZE),
2191                                 ssid);
2192 }
2193
2194 static int ipw_send_adapter_address(struct ipw_priv *priv, u8 * mac)
2195 {
2196         if (!priv || !mac) {
2197                 IPW_ERROR("Invalid args\n");
2198                 return -1;
2199         }
2200
2201         IPW_DEBUG_INFO("%s: Setting MAC to " MAC_FMT "\n",
2202                        priv->net_dev->name, MAC_ARG(mac));
2203
2204         return ipw_send_cmd_pdu(priv, IPW_CMD_ADAPTER_ADDRESS, ETH_ALEN, mac);
2205 }
2206
2207 /*
2208  * NOTE: This must be executed from our workqueue as it results in udelay
2209  * being called which may corrupt the keyboard if executed on default
2210  * workqueue
2211  */
2212 static void ipw_adapter_restart(void *adapter)
2213 {
2214         struct ipw_priv *priv = adapter;
2215
2216         if (priv->status & STATUS_RF_KILL_MASK)
2217                 return;
2218
2219         ipw_down(priv);
2220
2221         if (priv->assoc_network &&
2222             (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS))
2223                 ipw_remove_current_network(priv);
2224
2225         if (ipw_up(priv)) {
2226                 IPW_ERROR("Failed to up device\n");
2227                 return;
2228         }
2229 }
2230
2231 static void ipw_bg_adapter_restart(void *data)
2232 {
2233         struct ipw_priv *priv = data;
2234         mutex_lock(&priv->mutex);
2235         ipw_adapter_restart(data);
2236         mutex_unlock(&priv->mutex);
2237 }
2238
2239 #define IPW_SCAN_CHECK_WATCHDOG (5 * HZ)
2240
2241 static void ipw_scan_check(void *data)
2242 {
2243         struct ipw_priv *priv = data;
2244         if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
2245                 IPW_DEBUG_SCAN("Scan completion watchdog resetting "
2246                                "adapter after (%dms).\n",
2247                                jiffies_to_msecs(IPW_SCAN_CHECK_WATCHDOG));
2248                 queue_work(priv->workqueue, &priv->adapter_restart);
2249         }
2250 }
2251
2252 static void ipw_bg_scan_check(void *data)
2253 {
2254         struct ipw_priv *priv = data;
2255         mutex_lock(&priv->mutex);
2256         ipw_scan_check(data);
2257         mutex_unlock(&priv->mutex);
2258 }
2259
2260 static int ipw_send_scan_request_ext(struct ipw_priv *priv,
2261                                      struct ipw_scan_request_ext *request)
2262 {
2263         return ipw_send_cmd_pdu(priv, IPW_CMD_SCAN_REQUEST_EXT,
2264                                 sizeof(*request), request);
2265 }
2266
2267 static int ipw_send_scan_abort(struct ipw_priv *priv)
2268 {
2269         if (!priv) {
2270                 IPW_ERROR("Invalid args\n");
2271                 return -1;
2272         }
2273
2274         return ipw_send_cmd_simple(priv, IPW_CMD_SCAN_ABORT);
2275 }
2276
2277 static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens)
2278 {
2279         struct ipw_sensitivity_calib calib = {
2280                 .beacon_rssi_raw = cpu_to_le16(sens),
2281         };
2282
2283         return ipw_send_cmd_pdu(priv, IPW_CMD_SENSITIVITY_CALIB, sizeof(calib),
2284                                 &calib);
2285 }
2286
2287 static int ipw_send_associate(struct ipw_priv *priv,
2288                               struct ipw_associate *associate)
2289 {
2290         struct ipw_associate tmp_associate;
2291
2292         if (!priv || !associate) {
2293                 IPW_ERROR("Invalid args\n");
2294                 return -1;
2295         }
2296
2297         memcpy(&tmp_associate, associate, sizeof(*associate));
2298         tmp_associate.policy_support =
2299             cpu_to_le16(tmp_associate.policy_support);
2300         tmp_associate.assoc_tsf_msw = cpu_to_le32(tmp_associate.assoc_tsf_msw);
2301         tmp_associate.assoc_tsf_lsw = cpu_to_le32(tmp_associate.assoc_tsf_lsw);
2302         tmp_associate.capability = cpu_to_le16(tmp_associate.capability);
2303         tmp_associate.listen_interval =
2304             cpu_to_le16(tmp_associate.listen_interval);
2305         tmp_associate.beacon_interval =
2306             cpu_to_le16(tmp_associate.beacon_interval);
2307         tmp_associate.atim_window = cpu_to_le16(tmp_associate.atim_window);
2308
2309         return ipw_send_cmd_pdu(priv, IPW_CMD_ASSOCIATE, sizeof(tmp_associate),
2310                                 &tmp_associate);
2311 }
2312
2313 static int ipw_send_supported_rates(struct ipw_priv *priv,
2314                                     struct ipw_supported_rates *rates)
2315 {
2316         if (!priv || !rates) {
2317                 IPW_ERROR("Invalid args\n");
2318                 return -1;
2319         }
2320
2321         return ipw_send_cmd_pdu(priv, IPW_CMD_SUPPORTED_RATES, sizeof(*rates),
2322                                 rates);
2323 }
2324
2325 static int ipw_set_random_seed(struct ipw_priv *priv)
2326 {
2327         u32 val;
2328
2329         if (!priv) {
2330                 IPW_ERROR("Invalid args\n");
2331                 return -1;
2332         }
2333
2334         get_random_bytes(&val, sizeof(val));
2335
2336         return ipw_send_cmd_pdu(priv, IPW_CMD_SEED_NUMBER, sizeof(val), &val);
2337 }
2338
2339 static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off)
2340 {
2341         if (!priv) {
2342                 IPW_ERROR("Invalid args\n");
2343                 return -1;
2344         }
2345
2346         phy_off = cpu_to_le32(phy_off);
2347         return ipw_send_cmd_pdu(priv, IPW_CMD_CARD_DISABLE, sizeof(phy_off),
2348                                 &phy_off);
2349 }
2350
2351 static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power)
2352 {
2353         if (!priv || !power) {
2354                 IPW_ERROR("Invalid args\n");
2355                 return -1;
2356         }
2357
2358         return ipw_send_cmd_pdu(priv, IPW_CMD_TX_POWER, sizeof(*power), power);
2359 }
2360
2361 static int ipw_set_tx_power(struct ipw_priv *priv)
2362 {
2363         const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
2364         struct ipw_tx_power tx_power;
2365         s8 max_power;
2366         int i;
2367
2368         memset(&tx_power, 0, sizeof(tx_power));
2369
2370         /* configure device for 'G' band */
2371         tx_power.ieee_mode = IPW_G_MODE;
2372         tx_power.num_channels = geo->bg_channels;
2373         for (i = 0; i < geo->bg_channels; i++) {
2374                 max_power = geo->bg[i].max_power;
2375                 tx_power.channels_tx_power[i].channel_number =
2376                     geo->bg[i].channel;
2377                 tx_power.channels_tx_power[i].tx_power = max_power ?
2378                     min(max_power, priv->tx_power) : priv->tx_power;
2379         }
2380         if (ipw_send_tx_power(priv, &tx_power))
2381                 return -EIO;
2382
2383         /* configure device to also handle 'B' band */
2384         tx_power.ieee_mode = IPW_B_MODE;
2385         if (ipw_send_tx_power(priv, &tx_power))
2386                 return -EIO;
2387
2388         /* configure device to also handle 'A' band */
2389         if (priv->ieee->abg_true) {
2390                 tx_power.ieee_mode = IPW_A_MODE;
2391                 tx_power.num_channels = geo->a_channels;
2392                 for (i = 0; i < tx_power.num_channels; i++) {
2393                         max_power = geo->a[i].max_power;
2394                         tx_power.channels_tx_power[i].channel_number =
2395                             geo->a[i].channel;
2396                         tx_power.channels_tx_power[i].tx_power = max_power ?
2397                             min(max_power, priv->tx_power) : priv->tx_power;
2398                 }
2399                 if (ipw_send_tx_power(priv, &tx_power))
2400                         return -EIO;
2401         }
2402         return 0;
2403 }
2404
2405 static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts)
2406 {
2407         struct ipw_rts_threshold rts_threshold = {
2408                 .rts_threshold = cpu_to_le16(rts),
2409         };
2410
2411         if (!priv) {
2412                 IPW_ERROR("Invalid args\n");
2413                 return -1;
2414         }
2415
2416         return ipw_send_cmd_pdu(priv, IPW_CMD_RTS_THRESHOLD,
2417                                 sizeof(rts_threshold), &rts_threshold);
2418 }
2419
2420 static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag)
2421 {
2422         struct ipw_frag_threshold frag_threshold = {
2423                 .frag_threshold = cpu_to_le16(frag),
2424         };
2425
2426         if (!priv) {
2427                 IPW_ERROR("Invalid args\n");
2428                 return -1;
2429         }
2430
2431         return ipw_send_cmd_pdu(priv, IPW_CMD_FRAG_THRESHOLD,
2432                                 sizeof(frag_threshold), &frag_threshold);
2433 }
2434
2435 static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode)
2436 {
2437         u32 param;
2438
2439         if (!priv) {
2440                 IPW_ERROR("Invalid args\n");
2441                 return -1;
2442         }
2443
2444         /* If on battery, set to 3, if AC set to CAM, else user
2445          * level */
2446         switch (mode) {
2447         case IPW_POWER_BATTERY:
2448                 param = IPW_POWER_INDEX_3;
2449                 break;
2450         case IPW_POWER_AC:
2451                 param = IPW_POWER_MODE_CAM;
2452                 break;
2453         default:
2454                 param = mode;
2455                 break;
2456         }
2457
2458         param = cpu_to_le32(mode);
2459         return ipw_send_cmd_pdu(priv, IPW_CMD_POWER_MODE, sizeof(param),
2460                                 &param);
2461 }
2462
2463 static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit)
2464 {
2465         struct ipw_retry_limit retry_limit = {
2466                 .short_retry_limit = slimit,
2467                 .long_retry_limit = llimit
2468         };
2469
2470         if (!priv) {
2471                 IPW_ERROR("Invalid args\n");
2472                 return -1;
2473         }
2474
2475         return ipw_send_cmd_pdu(priv, IPW_CMD_RETRY_LIMIT, sizeof(retry_limit),
2476                                 &retry_limit);
2477 }
2478
2479 /*
2480  * The IPW device contains a Microwire compatible EEPROM that stores
2481  * various data like the MAC address.  Usually the firmware has exclusive
2482  * access to the eeprom, but during device initialization (before the
2483  * device driver has sent the HostComplete command to the firmware) the
2484  * device driver has read access to the EEPROM by way of indirect addressing
2485  * through a couple of memory mapped registers.
2486  *
2487  * The following is a simplified implementation for pulling data out of the
2488  * the eeprom, along with some helper functions to find information in
2489  * the per device private data's copy of the eeprom.
2490  *
2491  * NOTE: To better understand how these functions work (i.e what is a chip
2492  *       select and why do have to keep driving the eeprom clock?), read
2493  *       just about any data sheet for a Microwire compatible EEPROM.
2494  */
2495
2496 /* write a 32 bit value into the indirect accessor register */
2497 static inline void eeprom_write_reg(struct ipw_priv *p, u32 data)
2498 {
2499         ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data);
2500
2501         /* the eeprom requires some time to complete the operation */
2502         udelay(p->eeprom_delay);
2503
2504         return;
2505 }
2506
2507 /* perform a chip select operation */
2508 static void eeprom_cs(struct ipw_priv *priv)
2509 {
2510         eeprom_write_reg(priv, 0);
2511         eeprom_write_reg(priv, EEPROM_BIT_CS);
2512         eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2513         eeprom_write_reg(priv, EEPROM_BIT_CS);
2514 }
2515
2516 /* perform a chip select operation */
2517 static void eeprom_disable_cs(struct ipw_priv *priv)
2518 {
2519         eeprom_write_reg(priv, EEPROM_BIT_CS);
2520         eeprom_write_reg(priv, 0);
2521         eeprom_write_reg(priv, EEPROM_BIT_SK);
2522 }
2523
2524 /* push a single bit down to the eeprom */
2525 static inline void eeprom_write_bit(struct ipw_priv *p, u8 bit)
2526 {
2527         int d = (bit ? EEPROM_BIT_DI : 0);
2528         eeprom_write_reg(p, EEPROM_BIT_CS | d);
2529         eeprom_write_reg(p, EEPROM_BIT_CS | d | EEPROM_BIT_SK);
2530 }
2531
2532 /* push an opcode followed by an address down to the eeprom */
2533 static void eeprom_op(struct ipw_priv *priv, u8 op, u8 addr)
2534 {
2535         int i;
2536
2537         eeprom_cs(priv);
2538         eeprom_write_bit(priv, 1);
2539         eeprom_write_bit(priv, op & 2);
2540         eeprom_write_bit(priv, op & 1);
2541         for (i = 7; i >= 0; i--) {
2542                 eeprom_write_bit(priv, addr & (1 << i));
2543         }
2544 }
2545
2546 /* pull 16 bits off the eeprom, one bit at a time */
2547 static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr)
2548 {
2549         int i;
2550         u16 r = 0;
2551
2552         /* Send READ Opcode */
2553         eeprom_op(priv, EEPROM_CMD_READ, addr);
2554
2555         /* Send dummy bit */
2556         eeprom_write_reg(priv, EEPROM_BIT_CS);
2557
2558         /* Read the byte off the eeprom one bit at a time */
2559         for (i = 0; i < 16; i++) {
2560                 u32 data = 0;
2561                 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2562                 eeprom_write_reg(priv, EEPROM_BIT_CS);
2563                 data = ipw_read_reg32(priv, FW_MEM_REG_EEPROM_ACCESS);
2564                 r = (r << 1) | ((data & EEPROM_BIT_DO) ? 1 : 0);
2565         }
2566
2567         /* Send another dummy bit */
2568         eeprom_write_reg(priv, 0);
2569         eeprom_disable_cs(priv);
2570
2571         return r;
2572 }
2573
2574 /* helper function for pulling the mac address out of the private */
2575 /* data's copy of the eeprom data                                 */
2576 static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
2577 {
2578         memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], 6);
2579 }
2580
2581 /*
2582  * Either the device driver (i.e. the host) or the firmware can
2583  * load eeprom data into the designated region in SRAM.  If neither
2584  * happens then the FW will shutdown with a fatal error.
2585  *
2586  * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE
2587  * bit needs region of shared SRAM needs to be non-zero.
2588  */
2589 static void ipw_eeprom_init_sram(struct ipw_priv *priv)
2590 {
2591         int i;
2592         u16 *eeprom = (u16 *) priv->eeprom;
2593
2594         IPW_DEBUG_TRACE(">>\n");
2595
2596         /* read entire contents of eeprom into private buffer */
2597         for (i = 0; i < 128; i++)
2598                 eeprom[i] = le16_to_cpu(eeprom_read_u16(priv, (u8) i));
2599
2600         /*
2601            If the data looks correct, then copy it to our private
2602            copy.  Otherwise let the firmware know to perform the operation
2603            on its own.
2604          */
2605         if (priv->eeprom[EEPROM_VERSION] != 0) {
2606                 IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n");
2607
2608                 /* write the eeprom data to sram */
2609                 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
2610                         ipw_write8(priv, IPW_EEPROM_DATA + i, priv->eeprom[i]);
2611
2612                 /* Do not load eeprom data on fatal error or suspend */
2613                 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
2614         } else {
2615                 IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n");
2616
2617                 /* Load eeprom data on fatal error or suspend */
2618                 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1);
2619         }
2620
2621         IPW_DEBUG_TRACE("<<\n");
2622 }
2623
2624 static void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count)
2625 {
2626         count >>= 2;
2627         if (!count)
2628                 return;
2629         _ipw_write32(priv, IPW_AUTOINC_ADDR, start);
2630         while (count--)
2631                 _ipw_write32(priv, IPW_AUTOINC_DATA, 0);
2632 }
2633
2634 static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv)
2635 {
2636         ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL,
2637                         CB_NUMBER_OF_ELEMENTS_SMALL *
2638                         sizeof(struct command_block));
2639 }
2640
2641 static int ipw_fw_dma_enable(struct ipw_priv *priv)
2642 {                               /* start dma engine but no transfers yet */
2643
2644         IPW_DEBUG_FW(">> : \n");
2645
2646         /* Start the dma */
2647         ipw_fw_dma_reset_command_blocks(priv);
2648
2649         /* Write CB base address */
2650         ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL);
2651
2652         IPW_DEBUG_FW("<< : \n");
2653         return 0;
2654 }
2655
2656 static void ipw_fw_dma_abort(struct ipw_priv *priv)
2657 {
2658         u32 control = 0;
2659
2660         IPW_DEBUG_FW(">> :\n");
2661
2662         /* set the Stop and Abort bit */
2663         control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT;
2664         ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2665         priv->sram_desc.last_cb_index = 0;
2666
2667         IPW_DEBUG_FW("<< \n");
2668 }
2669
2670 static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index,
2671                                           struct command_block *cb)
2672 {
2673         u32 address =
2674             IPW_SHARED_SRAM_DMA_CONTROL +
2675             (sizeof(struct command_block) * index);
2676         IPW_DEBUG_FW(">> :\n");
2677
2678         ipw_write_indirect(priv, address, (u8 *) cb,
2679                            (int)sizeof(struct command_block));
2680
2681         IPW_DEBUG_FW("<< :\n");
2682         return 0;
2683
2684 }
2685
2686 static int ipw_fw_dma_kick(struct ipw_priv *priv)
2687 {
2688         u32 control = 0;
2689         u32 index = 0;
2690
2691         IPW_DEBUG_FW(">> :\n");
2692
2693         for (index = 0; index < priv->sram_desc.last_cb_index; index++)
2694                 ipw_fw_dma_write_command_block(priv, index,
2695                                                &priv->sram_desc.cb_list[index]);
2696
2697         /* Enable the DMA in the CSR register */
2698         ipw_clear_bit(priv, IPW_RESET_REG,
2699                       IPW_RESET_REG_MASTER_DISABLED |
2700                       IPW_RESET_REG_STOP_MASTER);
2701
2702         /* Set the Start bit. */
2703         control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START;
2704         ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2705
2706         IPW_DEBUG_FW("<< :\n");
2707         return 0;
2708 }
2709
2710 static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv)
2711 {
2712         u32 address;
2713         u32 register_value = 0;
2714         u32 cb_fields_address = 0;
2715
2716         IPW_DEBUG_FW(">> :\n");
2717         address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2718         IPW_DEBUG_FW_INFO("Current CB is 0x%x \n", address);
2719
2720         /* Read the DMA Controlor register */
2721         register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL);
2722         IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x \n", register_value);
2723
2724         /* Print the CB values */
2725         cb_fields_address = address;
2726         register_value = ipw_read_reg32(priv, cb_fields_address);
2727         IPW_DEBUG_FW_INFO("Current CB ControlField is 0x%x \n", register_value);
2728
2729         cb_fields_address += sizeof(u32);
2730         register_value = ipw_read_reg32(priv, cb_fields_address);
2731         IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x \n", register_value);
2732
2733         cb_fields_address += sizeof(u32);
2734         register_value = ipw_read_reg32(priv, cb_fields_address);
2735         IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x \n",
2736                           register_value);
2737
2738         cb_fields_address += sizeof(u32);
2739         register_value = ipw_read_reg32(priv, cb_fields_address);
2740         IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x \n", register_value);
2741
2742         IPW_DEBUG_FW(">> :\n");
2743 }
2744
2745 static int ipw_fw_dma_command_block_index(struct ipw_priv *priv)
2746 {
2747         u32 current_cb_address = 0;
2748         u32 current_cb_index = 0;
2749
2750         IPW_DEBUG_FW("<< :\n");
2751         current_cb_address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2752
2753         current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL) /
2754             sizeof(struct command_block);
2755
2756         IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X \n",
2757                           current_cb_index, current_cb_address);
2758
2759         IPW_DEBUG_FW(">> :\n");
2760         return current_cb_index;
2761
2762 }
2763
2764 static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
2765                                         u32 src_address,
2766                                         u32 dest_address,
2767                                         u32 length,
2768                                         int interrupt_enabled, int is_last)
2769 {
2770
2771         u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC |
2772             CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG |
2773             CB_DEST_SIZE_LONG;
2774         struct command_block *cb;
2775         u32 last_cb_element = 0;
2776
2777         IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n",
2778                           src_address, dest_address, length);
2779
2780         if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL)
2781                 return -1;
2782
2783         last_cb_element = priv->sram_desc.last_cb_index;
2784         cb = &priv->sram_desc.cb_list[last_cb_element];
2785         priv->sram_desc.last_cb_index++;
2786
2787         /* Calculate the new CB control word */
2788         if (interrupt_enabled)
2789                 control |= CB_INT_ENABLED;
2790
2791         if (is_last)
2792                 control |= CB_LAST_VALID;
2793
2794         control |= length;
2795
2796         /* Calculate the CB Element's checksum value */
2797         cb->status = control ^ src_address ^ dest_address;
2798
2799         /* Copy the Source and Destination addresses */
2800         cb->dest_addr = dest_address;
2801         cb->source_addr = src_address;
2802
2803         /* Copy the Control Word last */
2804         cb->control = control;
2805
2806         return 0;
2807 }
2808
2809 static int ipw_fw_dma_add_buffer(struct ipw_priv *priv,
2810                                  u32 src_phys, u32 dest_address, u32 length)
2811 {
2812         u32 bytes_left = length;
2813         u32 src_offset = 0;
2814         u32 dest_offset = 0;
2815         int status = 0;
2816         IPW_DEBUG_FW(">> \n");
2817         IPW_DEBUG_FW_INFO("src_phys=0x%x dest_address=0x%x length=0x%x\n",
2818                           src_phys, dest_address, length);
2819         while (bytes_left > CB_MAX_LENGTH) {
2820                 status = ipw_fw_dma_add_command_block(priv,
2821                                                       src_phys + src_offset,
2822                                                       dest_address +
2823                                                       dest_offset,
2824                                                       CB_MAX_LENGTH, 0, 0);
2825                 if (status) {
2826                         IPW_DEBUG_FW_INFO(": Failed\n");
2827                         return -1;
2828                 } else
2829                         IPW_DEBUG_FW_INFO(": Added new cb\n");
2830
2831                 src_offset += CB_MAX_LENGTH;
2832                 dest_offset += CB_MAX_LENGTH;
2833                 bytes_left -= CB_MAX_LENGTH;
2834         }
2835
2836         /* add the buffer tail */
2837         if (bytes_left > 0) {
2838                 status =
2839                     ipw_fw_dma_add_command_block(priv, src_phys + src_offset,
2840                                                  dest_address + dest_offset,
2841                                                  bytes_left, 0, 0);
2842                 if (status) {
2843                         IPW_DEBUG_FW_INFO(": Failed on the buffer tail\n");
2844                         return -1;
2845                 } else
2846                         IPW_DEBUG_FW_INFO
2847                             (": Adding new cb - the buffer tail\n");
2848         }
2849
2850         IPW_DEBUG_FW("<< \n");
2851         return 0;
2852 }
2853
2854 static int ipw_fw_dma_wait(struct ipw_priv *priv)
2855 {
2856         u32 current_index = 0, previous_index;
2857         u32 watchdog = 0;
2858
2859         IPW_DEBUG_FW(">> : \n");
2860
2861         current_index = ipw_fw_dma_command_block_index(priv);
2862         IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%08X\n",
2863                           (int)priv->sram_desc.last_cb_index);
2864
2865         while (current_index < priv->sram_desc.last_cb_index) {
2866                 udelay(50);
2867                 previous_index = current_index;
2868                 current_index = ipw_fw_dma_command_block_index(priv);
2869
2870                 if (previous_index < current_index) {
2871                         watchdog = 0;
2872                         continue;
2873                 }
2874                 if (++watchdog > 400) {
2875                         IPW_DEBUG_FW_INFO("Timeout\n");
2876                         ipw_fw_dma_dump_command_block(priv);
2877                         ipw_fw_dma_abort(priv);
2878                         return -1;
2879                 }
2880         }
2881
2882         ipw_fw_dma_abort(priv);
2883
2884         /*Disable the DMA in the CSR register */
2885         ipw_set_bit(priv, IPW_RESET_REG,
2886                     IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER);
2887
2888         IPW_DEBUG_FW("<< dmaWaitSync \n");
2889         return 0;
2890 }
2891
2892 static void ipw_remove_current_network(struct ipw_priv *priv)
2893 {
2894         struct list_head *element, *safe;
2895         struct ieee80211_network *network = NULL;
2896         unsigned long flags;
2897
2898         spin_lock_irqsave(&priv->ieee->lock, flags);
2899         list_for_each_safe(element, safe, &priv->ieee->network_list) {
2900                 network = list_entry(element, struct ieee80211_network, list);
2901                 if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
2902                         list_del(element);
2903                         list_add_tail(&network->list,
2904                                       &priv->ieee->network_free_list);
2905                 }
2906         }
2907         spin_unlock_irqrestore(&priv->ieee->lock, flags);
2908 }
2909
2910 /**
2911  * Check that card is still alive.
2912  * Reads debug register from domain0.
2913  * If card is present, pre-defined value should
2914  * be found there.
2915  *
2916  * @param priv
2917  * @return 1 if card is present, 0 otherwise
2918  */
2919 static inline int ipw_alive(struct ipw_priv *priv)
2920 {
2921         return ipw_read32(priv, 0x90) == 0xd55555d5;
2922 }
2923
2924 /* timeout in msec, attempted in 10-msec quanta */
2925 static int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask,
2926                                int timeout)
2927 {
2928         int i = 0;
2929
2930         do {
2931                 if ((ipw_read32(priv, addr) & mask) == mask)
2932                         return i;
2933                 mdelay(10);
2934                 i += 10;
2935         } while (i < timeout);
2936
2937         return -ETIME;
2938 }
2939
2940 /* These functions load the firmware and micro code for the operation of
2941  * the ipw hardware.  It assumes the buffer has all the bits for the
2942  * image and the caller is handling the memory allocation and clean up.
2943  */
2944
2945 static int ipw_stop_master(struct ipw_priv *priv)
2946 {
2947         int rc;
2948
2949         IPW_DEBUG_TRACE(">> \n");
2950         /* stop master. typical delay - 0 */
2951         ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
2952
2953         /* timeout is in msec, polled in 10-msec quanta */
2954         rc = ipw_poll_bit(priv, IPW_RESET_REG,
2955                           IPW_RESET_REG_MASTER_DISABLED, 100);
2956         if (rc < 0) {
2957                 IPW_ERROR("wait for stop master failed after 100ms\n");
2958                 return -1;
2959         }
2960
2961         IPW_DEBUG_INFO("stop master %dms\n", rc);
2962
2963         return rc;
2964 }
2965
2966 static void ipw_arc_release(struct ipw_priv *priv)
2967 {
2968         IPW_DEBUG_TRACE(">> \n");
2969         mdelay(5);
2970
2971         ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
2972
2973         /* no one knows timing, for safety add some delay */
2974         mdelay(5);
2975 }
2976
2977 struct fw_chunk {
2978         u32 address;
2979         u32 length;
2980 };
2981
2982 static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len)
2983 {
2984         int rc = 0, i, addr;
2985         u8 cr = 0;
2986         u16 *image;
2987
2988         image = (u16 *) data;
2989
2990         IPW_DEBUG_TRACE(">> \n");
2991
2992         rc = ipw_stop_master(priv);
2993
2994         if (rc < 0)
2995                 return rc;
2996
2997         for (addr = IPW_SHARED_LOWER_BOUND;
2998              addr < IPW_REGISTER_DOMAIN1_END; addr += 4) {
2999                 ipw_write32(priv, addr, 0);
3000         }
3001
3002         /* no ucode (yet) */
3003         memset(&priv->dino_alive, 0, sizeof(priv->dino_alive));
3004         /* destroy DMA queues */
3005         /* reset sequence */
3006
3007         ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_ON);
3008         ipw_arc_release(priv);
3009         ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF);
3010         mdelay(1);
3011
3012         /* reset PHY */
3013         ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN);
3014         mdelay(1);
3015
3016         ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0);
3017         mdelay(1);
3018
3019         /* enable ucode store */
3020         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0x0);
3021         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_CS);
3022         mdelay(1);
3023
3024         /* write ucode */
3025         /**
3026          * @bug
3027          * Do NOT set indirect address register once and then
3028          * store data to indirect data register in the loop.
3029          * It seems very reasonable, but in this case DINO do not
3030          * accept ucode. It is essential to set address each time.
3031          */
3032         /* load new ipw uCode */
3033         for (i = 0; i < len / 2; i++)
3034                 ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE,
3035                                 cpu_to_le16(image[i]));
3036
3037         /* enable DINO */
3038         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3039         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_SYSTEM);
3040
3041         /* this is where the igx / win driver deveates from the VAP driver. */
3042
3043         /* wait for alive response */
3044         for (i = 0; i < 100; i++) {
3045                 /* poll for incoming data */
3046                 cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS);
3047                 if (cr & DINO_RXFIFO_DATA)
3048                         break;
3049                 mdelay(1);
3050         }
3051
3052         if (cr & DINO_RXFIFO_DATA) {
3053                 /* alive_command_responce size is NOT multiple of 4 */
3054                 u32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4];
3055
3056                 for (i = 0; i < ARRAY_SIZE(response_buffer); i++)
3057                         response_buffer[i] =
3058                             le32_to_cpu(ipw_read_reg32(priv,
3059                                                        IPW_BASEBAND_RX_FIFO_READ));
3060                 memcpy(&priv->dino_alive, response_buffer,
3061                        sizeof(priv->dino_alive));
3062                 if (priv->dino_alive.alive_command == 1
3063                     && priv->dino_alive.ucode_valid == 1) {
3064                         rc = 0;
3065                         IPW_DEBUG_INFO
3066                             ("Microcode OK, rev. %d (0x%x) dev. %d (0x%x) "
3067                              "of %02d/%02d/%02d %02d:%02d\n",
3068                              priv->dino_alive.software_revision,
3069                              priv->dino_alive.software_revision,
3070                              priv->dino_alive.device_identifier,
3071                              priv->dino_alive.device_identifier,
3072                              priv->dino_alive.time_stamp[0],
3073                              priv->dino_alive.time_stamp[1],
3074                              priv->dino_alive.time_stamp[2],
3075                              priv->dino_alive.time_stamp[3],
3076                              priv->dino_alive.time_stamp[4]);
3077                 } else {
3078                         IPW_DEBUG_INFO("Microcode is not alive\n");
3079                         rc = -EINVAL;
3080                 }
3081         } else {
3082                 IPW_DEBUG_INFO("No alive response from DINO\n");
3083                 rc = -ETIME;
3084         }
3085
3086         /* disable DINO, otherwise for some reason
3087            firmware have problem getting alive resp. */
3088         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
3089
3090         return rc;
3091 }
3092
3093 static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
3094 {
3095         int rc = -1;
3096         int offset = 0;
3097         struct fw_chunk *chunk;
3098         dma_addr_t shared_phys;
3099         u8 *shared_virt;
3100
3101         IPW_DEBUG_TRACE("<< : \n");
3102         shared_virt = pci_alloc_consistent(priv->pci_dev, len, &shared_phys);
3103
3104         if (!shared_virt)
3105                 return -ENOMEM;
3106
3107         memmove(shared_virt, data, len);
3108
3109         /* Start the Dma */
3110         rc = ipw_fw_dma_enable(priv);
3111
3112         if (priv->sram_desc.last_cb_index > 0) {
3113                 /* the DMA is already ready this would be a bug. */
3114                 BUG();
3115                 goto out;
3116         }
3117
3118         do {
3119                 chunk = (struct fw_chunk *)(data + offset);
3120                 offset += sizeof(struct fw_chunk);
3121                 /* build DMA packet and queue up for sending */
3122                 /* dma to chunk->address, the chunk->length bytes from data +
3123                  * offeset*/
3124                 /* Dma loading */
3125                 rc = ipw_fw_dma_add_buffer(priv, shared_phys + offset,
3126                                            le32_to_cpu(chunk->address),
3127                                            le32_to_cpu(chunk->length));
3128                 if (rc) {
3129                         IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
3130                         goto out;
3131                 }
3132
3133                 offset += le32_to_cpu(chunk->length);
3134         } while (offset < len);
3135
3136         /* Run the DMA and wait for the answer */
3137         rc = ipw_fw_dma_kick(priv);
3138         if (rc) {
3139                 IPW_ERROR("dmaKick Failed\n");
3140                 goto out;
3141         }
3142
3143         rc = ipw_fw_dma_wait(priv);
3144         if (rc) {
3145                 IPW_ERROR("dmaWaitSync Failed\n");
3146                 goto out;
3147         }
3148       out:
3149         pci_free_consistent(priv->pci_dev, len, shared_virt, shared_phys);
3150         return rc;
3151 }
3152
3153 /* stop nic */
3154 static int ipw_stop_nic(struct ipw_priv *priv)
3155 {
3156         int rc = 0;
3157
3158         /* stop */
3159         ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
3160
3161         rc = ipw_poll_bit(priv, IPW_RESET_REG,
3162                           IPW_RESET_REG_MASTER_DISABLED, 500);
3163         if (rc < 0) {
3164                 IPW_ERROR("wait for reg master disabled failed after 500ms\n");
3165                 return rc;
3166         }
3167
3168         ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
3169
3170         return rc;
3171 }
3172
3173 static void ipw_start_nic(struct ipw_priv *priv)
3174 {
3175         IPW_DEBUG_TRACE(">>\n");
3176
3177         /* prvHwStartNic  release ARC */
3178         ipw_clear_bit(priv, IPW_RESET_REG,
3179                       IPW_RESET_REG_MASTER_DISABLED |
3180                       IPW_RESET_REG_STOP_MASTER |
3181                       CBD_RESET_REG_PRINCETON_RESET);
3182
3183         /* enable power management */
3184         ipw_set_bit(priv, IPW_GP_CNTRL_RW,
3185                     IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
3186
3187         IPW_DEBUG_TRACE("<<\n");
3188 }
3189
3190 static int ipw_init_nic(struct ipw_priv *priv)
3191 {
3192         int rc;
3193
3194         IPW_DEBUG_TRACE(">>\n");
3195         /* reset */
3196         /*prvHwInitNic */
3197         /* set "initialization complete" bit to move adapter to D0 state */
3198         ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3199
3200         /* low-level PLL activation */
3201         ipw_write32(priv, IPW_READ_INT_REGISTER,
3202                     IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER);
3203
3204         /* wait for clock stabilization */
3205         rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW,
3206                           IPW_GP_CNTRL_BIT_CLOCK_READY, 250);
3207         if (rc < 0)
3208                 IPW_DEBUG_INFO("FAILED wait for clock stablization\n");
3209
3210         /* assert SW reset */
3211         ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET);
3212
3213         udelay(10);
3214
3215         /* set "initialization complete" bit to move adapter to D0 state */
3216         ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3217
3218         IPW_DEBUG_TRACE(">>\n");
3219         return 0;
3220 }
3221
3222 /* Call this function from process context, it will sleep in request_firmware.
3223  * Probe is an ok place to call this from.
3224  */
3225 static int ipw_reset_nic(struct ipw_priv *priv)
3226 {
3227         int rc = 0;
3228         unsigned long flags;
3229
3230         IPW_DEBUG_TRACE(">>\n");
3231
3232         rc = ipw_init_nic(priv);
3233
3234         spin_lock_irqsave(&priv->lock, flags);
3235         /* Clear the 'host command active' bit... */
3236         priv->status &= ~STATUS_HCMD_ACTIVE;
3237         wake_up_interruptible(&priv->wait_command_queue);
3238         priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
3239         wake_up_interruptible(&priv->wait_state);
3240         spin_unlock_irqrestore(&priv->lock, flags);
3241
3242         IPW_DEBUG_TRACE("<<\n");
3243         return rc;
3244 }
3245
3246
3247 struct ipw_fw {
3248         __le32 ver;
3249         __le32 boot_size;
3250         __le32 ucode_size;
3251         __le32 fw_size;
3252         u8 data[0];
3253 };
3254
3255 static int ipw_get_fw(struct ipw_priv *priv,
3256                       const struct firmware **raw, const char *name)
3257 {
3258         struct ipw_fw *fw;
3259         int rc;
3260
3261         /* ask firmware_class module to get the boot firmware off disk */
3262         rc = request_firmware(raw, name, &priv->pci_dev->dev);
3263         if (rc < 0) {
3264                 IPW_ERROR("%s request_firmware failed: Reason %d\n", name, rc);
3265                 return rc;
3266         }
3267
3268         if ((*raw)->size < sizeof(*fw)) {
3269                 IPW_ERROR("%s is too small (%zd)\n", name, (*raw)->size);
3270                 return -EINVAL;
3271         }
3272
3273         fw = (void *)(*raw)->data;
3274
3275         if ((*raw)->size < sizeof(*fw) + le32_to_cpu(fw->boot_size) +
3276             le32_to_cpu(fw->ucode_size) + le32_to_cpu(fw->fw_size)) {
3277                 IPW_ERROR("%s is too small or corrupt (%zd)\n",
3278                           name, (*raw)->size);
3279                 return -EINVAL;
3280         }
3281
3282         IPW_DEBUG_INFO("Read firmware '%s' image v%d.%d (%zd bytes)\n",
3283                        name,
3284                        le32_to_cpu(fw->ver) >> 16,
3285                        le32_to_cpu(fw->ver) & 0xff,
3286                        (*raw)->size - sizeof(*fw));
3287         return 0;
3288 }
3289
3290 #define IPW_RX_BUF_SIZE (3000)
3291
3292 static void ipw_rx_queue_reset(struct ipw_priv *priv,
3293                                       struct ipw_rx_queue *rxq)
3294 {
3295         unsigned long flags;
3296         int i;
3297
3298         spin_lock_irqsave(&rxq->lock, flags);
3299
3300         INIT_LIST_HEAD(&rxq->rx_free);
3301         INIT_LIST_HEAD(&rxq->rx_used);
3302
3303         /* Fill the rx_used queue with _all_ of the Rx buffers */
3304         for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
3305                 /* In the reset function, these buffers may have been allocated
3306                  * to an SKB, so we need to unmap and free potential storage */
3307                 if (rxq->pool[i].skb != NULL) {
3308                         pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
3309                                          IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3310                         dev_kfree_skb(rxq->pool[i].skb);
3311                         rxq->pool[i].skb = NULL;
3312                 }
3313                 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
3314         }
3315
3316         /* Set us so that we have processed and used all buffers, but have
3317          * not restocked the Rx queue with fresh buffers */
3318         rxq->read = rxq->write = 0;
3319         rxq->processed = RX_QUEUE_SIZE - 1;
3320         rxq->free_count = 0;
3321         spin_unlock_irqrestore(&rxq->lock, flags);
3322 }
3323
3324 #ifdef CONFIG_PM
3325 static int fw_loaded = 0;
3326 static const struct firmware *raw = NULL;
3327
3328 static void free_firmware(void)
3329 {
3330         if (fw_loaded) {
3331                 release_firmware(raw);
3332                 raw = NULL;
3333                 fw_loaded = 0;
3334         }
3335 }
3336 #else
3337 #define free_firmware() do {} while (0)
3338 #endif
3339
3340 static int ipw_load(struct ipw_priv *priv)
3341 {
3342 #ifndef CONFIG_PM
3343         const struct firmware *raw = NULL;
3344 #endif
3345         struct ipw_fw *fw;
3346         u8 *boot_img, *ucode_img, *fw_img;
3347         u8 *name = NULL;
3348         int rc = 0, retries = 3;
3349
3350         switch (priv->ieee->iw_mode) {
3351         case IW_MODE_ADHOC:
3352                 name = "ipw2200-ibss.fw";
3353                 break;
3354 #ifdef CONFIG_IPW2200_MONITOR
3355         case IW_MODE_MONITOR:
3356                 name = "ipw2200-sniffer.fw";
3357                 break;
3358 #endif
3359         case IW_MODE_INFRA:
3360                 name = "ipw2200-bss.fw";
3361                 break;
3362         }
3363
3364         if (!name) {
3365                 rc = -EINVAL;
3366                 goto error;
3367         }
3368
3369 #ifdef CONFIG_PM
3370         if (!fw_loaded) {
3371 #endif
3372                 rc = ipw_get_fw(priv, &raw, name);
3373                 if (rc < 0)
3374                         goto error;
3375 #ifdef CONFIG_PM
3376         }
3377 #endif
3378
3379         fw = (void *)raw->data;
3380         boot_img = &fw->data[0];
3381         ucode_img = &fw->data[le32_to_cpu(fw->boot_size)];
3382         fw_img = &fw->data[le32_to_cpu(fw->boot_size) +
3383                            le32_to_cpu(fw->ucode_size)];
3384
3385         if (rc < 0)
3386                 goto error;
3387
3388         if (!priv->rxq)
3389                 priv->rxq = ipw_rx_queue_alloc(priv);
3390         else
3391                 ipw_rx_queue_reset(priv, priv->rxq);
3392         if (!priv->rxq) {
3393                 IPW_ERROR("Unable to initialize Rx queue\n");
3394                 goto error;
3395         }
3396
3397       retry:
3398         /* Ensure interrupts are disabled */
3399         ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3400         priv->status &= ~STATUS_INT_ENABLED;
3401
3402         /* ack pending interrupts */
3403         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3404
3405         ipw_stop_nic(priv);
3406
3407         rc = ipw_reset_nic(priv);
3408         if (rc < 0) {
3409                 IPW_ERROR("Unable to reset NIC\n");
3410                 goto error;
3411         }
3412
3413         ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND,
3414                         IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND);
3415
3416         /* DMA the initial boot firmware into the device */
3417         rc = ipw_load_firmware(priv, boot_img, le32_to_cpu(fw->boot_size));
3418         if (rc < 0) {
3419                 IPW_ERROR("Unable to load boot firmware: %d\n", rc);
3420                 goto error;
3421         }
3422
3423         /* kick start the device */
3424         ipw_start_nic(priv);
3425
3426         /* wait for the device to finish its initial startup sequence */
3427         rc = ipw_poll_bit(priv, IPW_INTA_RW,
3428                           IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3429         if (rc < 0) {
3430                 IPW_ERROR("device failed to boot initial fw image\n");
3431                 goto error;
3432         }
3433         IPW_DEBUG_INFO("initial device response after %dms\n", rc);
3434
3435         /* ack fw init done interrupt */
3436         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3437
3438         /* DMA the ucode into the device */
3439         rc = ipw_load_ucode(priv, ucode_img, le32_to_cpu(fw->ucode_size));
3440         if (rc < 0) {
3441                 IPW_ERROR("Unable to load ucode: %d\n", rc);
3442                 goto error;
3443         }
3444
3445         /* stop nic */
3446         ipw_stop_nic(priv);
3447
3448         /* DMA bss firmware into the device */
3449         rc = ipw_load_firmware(priv, fw_img, le32_to_cpu(fw->fw_size));
3450         if (rc < 0) {
3451                 IPW_ERROR("Unable to load firmware: %d\n", rc);
3452                 goto error;
3453         }
3454 #ifdef CONFIG_PM
3455         fw_loaded = 1;
3456 #endif
3457
3458         ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
3459
3460         rc = ipw_queue_reset(priv);
3461         if (rc < 0) {
3462                 IPW_ERROR("Unable to initialize queues\n");
3463                 goto error;
3464         }
3465
3466         /* Ensure interrupts are disabled */
3467         ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3468         /* ack pending interrupts */
3469         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3470
3471         /* kick start the device */
3472         ipw_start_nic(priv);
3473
3474         if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) {
3475                 if (retries > 0) {
3476                         IPW_WARNING("Parity error.  Retrying init.\n");
3477                         retries--;
3478                         goto retry;
3479                 }
3480
3481                 IPW_ERROR("TODO: Handle parity error -- schedule restart?\n");
3482                 rc = -EIO;
3483                 goto error;
3484         }
3485
3486         /* wait for the device */
3487         rc = ipw_poll_bit(priv, IPW_INTA_RW,
3488                           IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3489         if (rc < 0) {
3490                 IPW_ERROR("device failed to start within 500ms\n");
3491                 goto error;
3492         }
3493         IPW_DEBUG_INFO("device response after %dms\n", rc);
3494
3495         /* ack fw init done interrupt */
3496         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3497
3498         /* read eeprom data and initialize the eeprom region of sram */
3499         priv->eeprom_delay = 1;
3500         ipw_eeprom_init_sram(priv);
3501
3502         /* enable interrupts */
3503         ipw_enable_interrupts(priv);
3504
3505         /* Ensure our queue has valid packets */
3506         ipw_rx_queue_replenish(priv);
3507
3508         ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read);
3509
3510         /* ack pending interrupts */
3511         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3512
3513 #ifndef CONFIG_PM
3514         release_firmware(raw);
3515 #endif
3516         return 0;
3517
3518       error:
3519         if (priv->rxq) {
3520                 ipw_rx_queue_free(priv, priv->rxq);
3521                 priv->rxq = NULL;
3522         }
3523         ipw_tx_queue_free(priv);
3524         if (raw)
3525                 release_firmware(raw);
3526 #ifdef CONFIG_PM
3527         fw_loaded = 0;
3528         raw = NULL;
3529 #endif
3530
3531         return rc;
3532 }
3533
3534 /**
3535  * DMA services
3536  *
3537  * Theory of operation
3538  *
3539  * A queue is a circular buffers with 'Read' and 'Write' pointers.
3540  * 2 empty entries always kept in the buffer to protect from overflow.
3541  *
3542  * For Tx queue, there are low mark and high mark limits. If, after queuing
3543  * the packet for Tx, free space become < low mark, Tx queue stopped. When
3544  * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
3545  * Tx queue resumed.
3546  *
3547  * The IPW operates with six queues, one receive queue in the device's
3548  * sram, one transmit queue for sending commands to the device firmware,
3549  * and four transmit queues for data.
3550  *
3551  * The four transmit queues allow for performing quality of service (qos)
3552  * transmissions as per the 802.11 protocol.  Currently Linux does not
3553  * provide a mechanism to the user for utilizing prioritized queues, so
3554  * we only utilize the first data transmit queue (queue1).
3555  */
3556
3557 /**
3558  * Driver allocates buffers of this size for Rx
3559  */
3560
3561 static inline int ipw_queue_space(const struct clx2_queue *q)
3562 {
3563         int s = q->last_used - q->first_empty;
3564         if (s <= 0)
3565                 s += q->n_bd;
3566         s -= 2;                 /* keep some reserve to not confuse empty and full situations */
3567         if (s < 0)
3568                 s = 0;
3569         return s;
3570 }
3571
3572 static inline int ipw_queue_inc_wrap(int index, int n_bd)
3573 {
3574         return (++index == n_bd) ? 0 : index;
3575 }
3576
3577 /**
3578  * Initialize common DMA queue structure
3579  *
3580  * @param q                queue to init
3581  * @param count            Number of BD's to allocate. Should be power of 2
3582  * @param read_register    Address for 'read' register
3583  *                         (not offset within BAR, full address)
3584  * @param write_register   Address for 'write' register
3585  *                         (not offset within BAR, full address)
3586  * @param base_register    Address for 'base' register
3587  *                         (not offset within BAR, full address)
3588  * @param size             Address for 'size' register
3589  *                         (not offset within BAR, full address)
3590  */
3591 static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q,
3592                            int count, u32 read, u32 write, u32 base, u32 size)
3593 {
3594         q->n_bd = count;
3595
3596         q->low_mark = q->n_bd / 4;
3597         if (q->low_mark < 4)
3598                 q->low_mark = 4;
3599
3600         q->high_mark = q->n_bd / 8;
3601         if (q->high_mark < 2)
3602                 q->high_mark = 2;
3603
3604         q->first_empty = q->last_used = 0;
3605         q->reg_r = read;
3606         q->reg_w = write;
3607
3608         ipw_write32(priv, base, q->dma_addr);
3609         ipw_write32(priv, size, count);
3610         ipw_write32(priv, read, 0);
3611         ipw_write32(priv, write, 0);
3612
3613         _ipw_read32(priv, 0x90);
3614 }
3615
3616 static int ipw_queue_tx_init(struct ipw_priv *priv,
3617                              struct clx2_tx_queue *q,
3618                              int count, u32 read, u32 write, u32 base, u32 size)
3619 {
3620         struct pci_dev *dev = priv->pci_dev;
3621
3622         q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL);
3623         if (!q->txb) {
3624                 IPW_ERROR("vmalloc for auxilary BD structures failed\n");
3625                 return -ENOMEM;
3626         }
3627
3628         q->bd =
3629             pci_alloc_consistent(dev, sizeof(q->bd[0]) * count, &q->q.dma_addr);
3630         if (!q->bd) {
3631                 IPW_ERROR("pci_alloc_consistent(%zd) failed\n",
3632                           sizeof(q->bd[0]) * count);
3633                 kfree(q->txb);
3634                 q->txb = NULL;
3635                 return -ENOMEM;
3636         }
3637
3638         ipw_queue_init(priv, &q->q, count, read, write, base, size);
3639         return 0;
3640 }
3641
3642 /**
3643  * Free one TFD, those at index [txq->q.last_used].
3644  * Do NOT advance any indexes
3645  *
3646  * @param dev
3647  * @param txq
3648  */
3649 static void ipw_queue_tx_free_tfd(struct ipw_priv *priv,
3650                                   struct clx2_tx_queue *txq)
3651 {
3652         struct tfd_frame *bd = &txq->bd[txq->q.last_used];
3653         struct pci_dev *dev = priv->pci_dev;
3654         int i;
3655
3656         /* classify bd */
3657         if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE)
3658                 /* nothing to cleanup after for host commands */
3659                 return;
3660
3661         /* sanity check */
3662         if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) {
3663                 IPW_ERROR("Too many chunks: %i\n",
3664                           le32_to_cpu(bd->u.data.num_chunks));
3665                 /** @todo issue fatal error, it is quite serious situation */
3666                 return;
3667         }
3668
3669         /* unmap chunks if any */
3670         for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) {
3671                 pci_unmap_single(dev, le32_to_cpu(bd->u.data.chunk_ptr[i]),
3672                                  le16_to_cpu(bd->u.data.chunk_len[i]),
3673                                  PCI_DMA_TODEVICE);
3674                 if (txq->txb[txq->q.last_used]) {
3675                         ieee80211_txb_free(txq->txb[txq->q.last_used]);
3676                         txq->txb[txq->q.last_used] = NULL;
3677                 }
3678         }
3679 }
3680
3681 /**
3682  * Deallocate DMA queue.
3683  *
3684  * Empty queue by removing and destroying all BD's.
3685  * Free all buffers.
3686  *
3687  * @param dev
3688  * @param q
3689  */
3690 static void ipw_queue_tx_free(struct ipw_priv *priv, struct clx2_tx_queue *txq)
3691 {
3692         struct clx2_queue *q = &txq->q;
3693         struct pci_dev *dev = priv->pci_dev;
3694
3695         if (q->n_bd == 0)
3696                 return;
3697
3698         /* first, empty all BD's */
3699         for (; q->first_empty != q->last_used;
3700              q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
3701                 ipw_queue_tx_free_tfd(priv, txq);
3702         }
3703
3704         /* free buffers belonging to queue itself */
3705         pci_free_consistent(dev, sizeof(txq->bd[0]) * q->n_bd, txq->bd,
3706                             q->dma_addr);
3707         kfree(txq->txb);
3708
3709         /* 0 fill whole structure */
3710         memset(txq, 0, sizeof(*txq));
3711 }
3712
3713 /**
3714  * Destroy all DMA queues and structures
3715  *
3716  * @param priv
3717  */
3718 static void ipw_tx_queue_free(struct ipw_priv *priv)
3719 {
3720         /* Tx CMD queue */
3721         ipw_queue_tx_free(priv, &priv->txq_cmd);
3722
3723         /* Tx queues */
3724         ipw_queue_tx_free(priv, &priv->txq[0]);
3725         ipw_queue_tx_free(priv, &priv->txq[1]);
3726         ipw_queue_tx_free(priv, &priv->txq[2]);
3727         ipw_queue_tx_free(priv, &priv->txq[3]);
3728 }
3729
3730 static void ipw_create_bssid(struct ipw_priv *priv, u8 * bssid)
3731 {
3732         /* First 3 bytes are manufacturer */
3733         bssid[0] = priv->mac_addr[0];
3734         bssid[1] = priv->mac_addr[1];
3735         bssid[2] = priv->mac_addr[2];
3736
3737         /* Last bytes are random */
3738         get_random_bytes(&bssid[3], ETH_ALEN - 3);
3739
3740         bssid[0] &= 0xfe;       /* clear multicast bit */
3741         bssid[0] |= 0x02;       /* set local assignment bit (IEEE802) */
3742 }
3743
3744 static u8 ipw_add_station(struct ipw_priv *priv, u8 * bssid)
3745 {
3746         struct ipw_station_entry entry;
3747         int i;
3748
3749         for (i = 0; i < priv->num_stations; i++) {
3750                 if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) {
3751                         /* Another node is active in network */
3752                         priv->missed_adhoc_beacons = 0;
3753                         if (!(priv->config & CFG_STATIC_CHANNEL))
3754                                 /* when other nodes drop out, we drop out */
3755                                 priv->config &= ~CFG_ADHOC_PERSIST;
3756
3757                         return i;
3758                 }
3759         }
3760
3761         if (i == MAX_STATIONS)
3762                 return IPW_INVALID_STATION;
3763
3764         IPW_DEBUG_SCAN("Adding AdHoc station: " MAC_FMT "\n", MAC_ARG(bssid));
3765
3766         entry.reserved = 0;
3767         entry.support_mode = 0;
3768         memcpy(entry.mac_addr, bssid, ETH_ALEN);
3769         memcpy(priv->stations[i], bssid, ETH_ALEN);
3770         ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry),
3771                          &entry, sizeof(entry));
3772         priv->num_stations++;
3773
3774         return i;
3775 }
3776
3777 static u8 ipw_find_station(struct ipw_priv *priv, u8 * bssid)
3778 {
3779         int i;
3780
3781         for (i = 0; i < priv->num_stations; i++)
3782                 if (!memcmp(priv->stations[i], bssid, ETH_ALEN))
3783                         return i;
3784
3785         return IPW_INVALID_STATION;
3786 }
3787
3788 static void ipw_send_disassociate(struct ipw_priv *priv, int quiet)
3789 {
3790         int err;
3791
3792         if (priv->status & STATUS_ASSOCIATING) {
3793                 IPW_DEBUG_ASSOC("Disassociating while associating.\n");
3794                 queue_work(priv->workqueue, &priv->disassociate);
3795                 return;
3796         }
3797
3798         if (!(priv->status & STATUS_ASSOCIATED)) {
3799                 IPW_DEBUG_ASSOC("Disassociating while not associated.\n");
3800                 return;
3801         }
3802
3803         IPW_DEBUG_ASSOC("Disassocation attempt from " MAC_FMT " "
3804                         "on channel %d.\n",
3805                         MAC_ARG(priv->assoc_request.bssid),
3806                         priv->assoc_request.channel);
3807
3808         priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
3809         priv->status |= STATUS_DISASSOCIATING;
3810
3811         if (quiet)
3812                 priv->assoc_request.assoc_type = HC_DISASSOC_QUIET;
3813         else
3814                 priv->assoc_request.assoc_type = HC_DISASSOCIATE;
3815
3816         err = ipw_send_associate(priv, &priv->assoc_request);
3817         if (err) {
3818                 IPW_DEBUG_HC("Attempt to send [dis]associate command "
3819                              "failed.\n");
3820                 return;
3821         }
3822
3823 }
3824
3825 static int ipw_disassociate(void *data)
3826 {
3827         struct ipw_priv *priv = data;
3828         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
3829                 return 0;
3830         ipw_send_disassociate(data, 0);
3831         return 1;
3832 }
3833
3834 static void ipw_bg_disassociate(void *data)
3835 {
3836         struct ipw_priv *priv = data;
3837         mutex_lock(&priv->mutex);
3838         ipw_disassociate(data);
3839         mutex_unlock(&priv->mutex);
3840 }
3841
3842 static void ipw_system_config(void *data)
3843 {
3844         struct ipw_priv *priv = data;
3845
3846 #ifdef CONFIG_IPW2200_PROMISCUOUS
3847         if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
3848                 priv->sys_config.accept_all_data_frames = 1;
3849                 priv->sys_config.accept_non_directed_frames = 1;
3850                 priv->sys_config.accept_all_mgmt_bcpr = 1;
3851                 priv->sys_config.accept_all_mgmt_frames = 1;
3852         }
3853 #endif
3854
3855         ipw_send_system_config(priv);
3856 }
3857
3858 struct ipw_status_code {
3859         u16 status;
3860         const char *reason;
3861 };
3862
3863 static const struct ipw_status_code ipw_status_codes[] = {
3864         {0x00, "Successful"},
3865         {0x01, "Unspecified failure"},
3866         {0x0A, "Cannot support all requested capabilities in the "
3867          "Capability information field"},
3868         {0x0B, "Reassociation denied due to inability to confirm that "
3869          "association exists"},
3870         {0x0C, "Association denied due to reason outside the scope of this "
3871          "standard"},
3872         {0x0D,
3873          "Responding station does not support the specified authentication "
3874          "algorithm"},
3875         {0x0E,
3876          "Received an Authentication frame with authentication sequence "
3877          "transaction sequence number out of expected sequence"},
3878         {0x0F, "Authentication rejected because of challenge failure"},
3879         {0x10, "Authentication rejected due to timeout waiting for next "
3880          "frame in sequence"},
3881         {0x11, "Association denied because AP is unable to handle additional "
3882          "associated stations"},
3883         {0x12,
3884          "Association denied due to requesting station not supporting all "
3885          "of the datarates in the BSSBasicServiceSet Parameter"},
3886         {0x13,
3887          "Association denied due to requesting station not supporting "
3888          "short preamble operation"},
3889         {0x14,
3890          "Association denied due to requesting station not supporting "
3891          "PBCC encoding"},
3892         {0x15,
3893          "Association denied due to requesting station not supporting "
3894          "channel agility"},
3895         {0x19,
3896          "Association denied due to requesting station not supporting "
3897          "short slot operation"},
3898         {0x1A,
3899          "Association denied due to requesting station not supporting "
3900          "DSSS-OFDM operation"},
3901         {0x28, "Invalid Information Element"},
3902         {0x29, "Group Cipher is not valid"},
3903         {0x2A, "Pairwise Cipher is not valid"},
3904         {0x2B, "AKMP is not valid"},
3905         {0x2C, "Unsupported RSN IE version"},
3906         {0x2D, "Invalid RSN IE Capabilities"},
3907         {0x2E, "Cipher suite is rejected per security policy"},
3908 };
3909
3910 static const char *ipw_get_status_code(u16 status)
3911 {
3912         int i;
3913         for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++)
3914                 if (ipw_status_codes[i].status == (status & 0xff))
3915                         return ipw_status_codes[i].reason;
3916         return "Unknown status value.";
3917 }
3918
3919 static void inline average_init(struct average *avg)
3920 {
3921         memset(avg, 0, sizeof(*avg));
3922 }
3923
3924 #define DEPTH_RSSI 8
3925 #define DEPTH_NOISE 16
3926 static s16 exponential_average(s16 prev_avg, s16 val, u8 depth)
3927 {
3928         return ((depth-1)*prev_avg +  val)/depth;
3929 }
3930
3931 static void average_add(struct average *avg, s16 val)
3932 {
3933         avg->sum -= avg->entries[avg->pos];
3934         avg->sum += val;
3935         avg->entries[avg->pos++] = val;
3936         if (unlikely(avg->pos == AVG_ENTRIES)) {
3937                 avg->init = 1;
3938                 avg->pos = 0;
3939         }
3940 }
3941
3942 static s16 average_value(struct average *avg)
3943 {
3944         if (!unlikely(avg->init)) {
3945                 if (avg->pos)
3946                         return avg->sum / avg->pos;
3947                 return 0;
3948         }
3949
3950         return avg->sum / AVG_ENTRIES;
3951 }
3952
3953 static void ipw_reset_stats(struct ipw_priv *priv)
3954 {
3955         u32 len = sizeof(u32);
3956
3957         priv->quality = 0;
3958
3959         average_init(&priv->average_missed_beacons);
3960         priv->exp_avg_rssi = -60;
3961         priv->exp_avg_noise = -85 + 0x100;
3962
3963         priv->last_rate = 0;
3964         priv->last_missed_beacons = 0;
3965         priv->last_rx_packets = 0;
3966         priv->last_tx_packets = 0;
3967         priv->last_tx_failures = 0;
3968
3969         /* Firmware managed, reset only when NIC is restarted, so we have to
3970          * normalize on the current value */
3971         ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC,
3972                         &priv->last_rx_err, &len);
3973         ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE,
3974                         &priv->last_tx_failures, &len);
3975
3976         /* Driver managed, reset with each association */
3977         priv->missed_adhoc_beacons = 0;
3978         priv->missed_beacons = 0;
3979         priv->tx_packets = 0;
3980         priv->rx_packets = 0;
3981
3982 }
3983
3984 static u32 ipw_get_max_rate(struct ipw_priv *priv)
3985 {
3986         u32 i = 0x80000000;
3987         u32 mask = priv->rates_mask;
3988         /* If currently associated in B mode, restrict the maximum
3989          * rate match to B rates */
3990         if (priv->assoc_request.ieee_mode == IPW_B_MODE)
3991                 mask &= IEEE80211_CCK_RATES_MASK;
3992
3993         /* TODO: Verify that the rate is supported by the current rates
3994          * list. */
3995
3996         while (i && !(mask & i))
3997                 i >>= 1;
3998         switch (i) {
3999         case IEEE80211_CCK_RATE_1MB_MASK:
4000                 return 1000000;
4001         case IEEE80211_CCK_RATE_2MB_MASK:
4002                 return 2000000;
4003         case IEEE80211_CCK_RATE_5MB_MASK:
4004                 return 5500000;
4005         case IEEE80211_OFDM_RATE_6MB_MASK:
4006                 return 6000000;
4007         case IEEE80211_OFDM_RATE_9MB_MASK:
4008                 return 9000000;
4009         case IEEE80211_CCK_RATE_11MB_MASK:
4010                 return 11000000;
4011         case IEEE80211_OFDM_RATE_12MB_MASK:
4012                 return 12000000;
4013         case IEEE80211_OFDM_RATE_18MB_MASK:
4014                 return 18000000;
4015         case IEEE80211_OFDM_RATE_24MB_MASK:
4016                 return 24000000;
4017         case IEEE80211_OFDM_RATE_36MB_MASK:
4018                 return 36000000;
4019         case IEEE80211_OFDM_RATE_48MB_MASK:
4020                 return 48000000;
4021         case IEEE80211_OFDM_RATE_54MB_MASK:
4022                 return 54000000;
4023         }
4024
4025         if (priv->ieee->mode == IEEE_B)
4026                 return 11000000;
4027         else
4028                 return 54000000;
4029 }
4030
4031 static u32 ipw_get_current_rate(struct ipw_priv *priv)
4032 {
4033         u32 rate, len = sizeof(rate);
4034         int err;
4035
4036         if (!(priv->status & STATUS_ASSOCIATED))
4037                 return 0;
4038
4039         if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) {
4040                 err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate,
4041                                       &len);
4042                 if (err) {
4043                         IPW_DEBUG_INFO("failed querying ordinals.\n");
4044                         return 0;
4045                 }
4046         } else
4047                 return ipw_get_max_rate(priv);
4048
4049         switch (rate) {
4050         case IPW_TX_RATE_1MB:
4051                 return 1000000;
4052         case IPW_TX_RATE_2MB:
4053                 return 2000000;
4054         case IPW_TX_RATE_5MB:
4055                 return 5500000;
4056         case IPW_TX_RATE_6MB:
4057                 return 6000000;
4058         case IPW_TX_RATE_9MB:
4059                 return 9000000;
4060         case IPW_TX_RATE_11MB:
4061                 return 11000000;
4062         case IPW_TX_RATE_12MB:
4063                 return 12000000;
4064         case IPW_TX_RATE_18MB:
4065                 return 18000000;
4066         case IPW_TX_RATE_24MB:
4067                 return 24000000;
4068         case IPW_TX_RATE_36MB:
4069                 return 36000000;
4070         case IPW_TX_RATE_48MB:
4071                 return 48000000;
4072         case IPW_TX_RATE_54MB:
4073                 return 54000000;
4074         }
4075
4076         return 0;
4077 }
4078
4079 #define IPW_STATS_INTERVAL (2 * HZ)
4080 static void ipw_gather_stats(struct ipw_priv *priv)
4081 {
4082         u32 rx_err, rx_err_delta, rx_packets_delta;
4083         u32 tx_failures, tx_failures_delta, tx_packets_delta;
4084         u32 missed_beacons_percent, missed_beacons_delta;
4085         u32 quality = 0;
4086         u32 len = sizeof(u32);
4087         s16 rssi;
4088         u32 beacon_quality, signal_quality, tx_quality, rx_quality,
4089             rate_quality;
4090         u32 max_rate;
4091
4092         if (!(priv->status & STATUS_ASSOCIATED)) {
4093                 priv->quality = 0;
4094                 return;
4095         }
4096
4097         /* Update the statistics */
4098         ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS,
4099                         &priv->missed_beacons, &len);
4100         missed_beacons_delta = priv->missed_beacons - priv->last_missed_beacons;
4101         priv->last_missed_beacons = priv->missed_beacons;
4102         if (priv->assoc_request.beacon_interval) {
4103                 missed_beacons_percent = missed_beacons_delta *
4104                     (HZ * priv->assoc_request.beacon_interval) /
4105                     (IPW_STATS_INTERVAL * 10);
4106         } else {
4107                 missed_beacons_percent = 0;
4108         }
4109         average_add(&priv->average_missed_beacons, missed_beacons_percent);
4110
4111         ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len);
4112         rx_err_delta = rx_err - priv->last_rx_err;
4113         priv->last_rx_err = rx_err;
4114
4115         ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len);
4116         tx_failures_delta = tx_failures - priv->last_tx_failures;
4117         priv->last_tx_failures = tx_failures;
4118
4119         rx_packets_delta = priv->rx_packets - priv->last_rx_packets;
4120         priv->last_rx_packets = priv->rx_packets;
4121
4122         tx_packets_delta = priv->tx_packets - priv->last_tx_packets;
4123         priv->last_tx_packets = priv->tx_packets;
4124
4125         /* Calculate quality based on the following:
4126          *
4127          * Missed beacon: 100% = 0, 0% = 70% missed
4128          * Rate: 60% = 1Mbs, 100% = Max
4129          * Rx and Tx errors represent a straight % of total Rx/Tx
4130          * RSSI: 100% = > -50,  0% = < -80
4131          * Rx errors: 100% = 0, 0% = 50% missed
4132          *
4133          * The lowest computed quality is used.
4134          *
4135          */
4136 #define BEACON_THRESHOLD 5
4137         beacon_quality = 100 - missed_beacons_percent;
4138         if (beacon_quality < BEACON_THRESHOLD)
4139                 beacon_quality = 0;
4140         else
4141                 beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 /
4142                     (100 - BEACON_THRESHOLD);
4143         IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n",
4144                         beacon_quality, missed_beacons_percent);
4145
4146         priv->last_rate = ipw_get_current_rate(priv);
4147         max_rate = ipw_get_max_rate(priv);
4148         rate_quality = priv->last_rate * 40 / max_rate + 60;
4149         IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n",
4150                         rate_quality, priv->last_rate / 1000000);
4151
4152         if (rx_packets_delta > 100 && rx_packets_delta + rx_err_delta)
4153                 rx_quality = 100 - (rx_err_delta * 100) /
4154                     (rx_packets_delta + rx_err_delta);
4155         else
4156                 rx_quality = 100;
4157         IPW_DEBUG_STATS("Rx quality   : %3d%% (%u errors, %u packets)\n",
4158                         rx_quality, rx_err_delta, rx_packets_delta);
4159
4160         if (tx_packets_delta > 100 && tx_packets_delta + tx_failures_delta)
4161                 tx_quality = 100 - (tx_failures_delta * 100) /
4162                     (tx_packets_delta + tx_failures_delta);
4163         else
4164                 tx_quality = 100;
4165         IPW_DEBUG_STATS("Tx quality   : %3d%% (%u errors, %u packets)\n",
4166                         tx_quality, tx_failures_delta, tx_packets_delta);
4167
4168         rssi = priv->exp_avg_rssi;
4169         signal_quality =
4170             (100 *
4171              (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4172              (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) -
4173              (priv->ieee->perfect_rssi - rssi) *
4174              (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) +
4175               62 * (priv->ieee->perfect_rssi - rssi))) /
4176             ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4177              (priv->ieee->perfect_rssi - priv->ieee->worst_rssi));
4178         if (signal_quality > 100)
4179                 signal_quality = 100;
4180         else if (signal_quality < 1)
4181                 signal_quality = 0;
4182
4183         IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n",
4184                         signal_quality, rssi);
4185
4186         quality = min(beacon_quality,
4187                       min(rate_quality,
4188                           min(tx_quality, min(rx_quality, signal_quality))));
4189         if (quality == beacon_quality)
4190                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to missed beacons.\n",
4191                                 quality);
4192         if (quality == rate_quality)
4193                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to rate quality.\n",
4194                                 quality);
4195         if (quality == tx_quality)
4196                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Tx quality.\n",
4197                                 quality);
4198         if (quality == rx_quality)
4199                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Rx quality.\n",
4200                                 quality);
4201         if (quality == signal_quality)
4202                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to signal quality.\n",
4203                                 quality);
4204
4205         priv->quality = quality;
4206
4207         queue_delayed_work(priv->workqueue, &priv->gather_stats,
4208                            IPW_STATS_INTERVAL);
4209 }
4210
4211 static void ipw_bg_gather_stats(void *data)
4212 {
4213         struct ipw_priv *priv = data;
4214         mutex_lock(&priv->mutex);
4215         ipw_gather_stats(data);
4216         mutex_unlock(&priv->mutex);
4217 }
4218
4219 /* Missed beacon behavior:
4220  * 1st missed -> roaming_threshold, just wait, don't do any scan/roam.
4221  * roaming_threshold -> disassociate_threshold, scan and roam for better signal.
4222  * Above disassociate threshold, give up and stop scanning.
4223  * Roaming is disabled if disassociate_threshold <= roaming_threshold  */
4224 static void ipw_handle_missed_beacon(struct ipw_priv *priv,
4225                                             int missed_count)
4226 {
4227         priv->notif_missed_beacons = missed_count;
4228
4229         if (missed_count > priv->disassociate_threshold &&
4230             priv->status & STATUS_ASSOCIATED) {
4231                 /* If associated and we've hit the missed
4232                  * beacon threshold, disassociate, turn
4233                  * off roaming, and abort any active scans */
4234                 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4235                           IPW_DL_STATE | IPW_DL_ASSOC,
4236                           "Missed beacon: %d - disassociate\n", missed_count);
4237                 priv->status &= ~STATUS_ROAMING;
4238                 if (priv->status & STATUS_SCANNING) {
4239                         IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4240                                   IPW_DL_STATE,
4241                                   "Aborting scan with missed beacon.\n");
4242                         queue_work(priv->workqueue, &priv->abort_scan);
4243                 }
4244
4245                 queue_work(priv->workqueue, &priv->disassociate);
4246                 return;
4247         }
4248
4249         if (priv->status & STATUS_ROAMING) {
4250                 /* If we are currently roaming, then just
4251                  * print a debug statement... */
4252                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4253                           "Missed beacon: %d - roam in progress\n",
4254                           missed_count);
4255                 return;
4256         }
4257
4258         if (roaming &&
4259             (missed_count > priv->roaming_threshold &&
4260              missed_count <= priv->disassociate_threshold)) {
4261                 /* If we are not already roaming, set the ROAM
4262                  * bit in the status and kick off a scan.
4263                  * This can happen several times before we reach
4264                  * disassociate_threshold. */
4265                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4266                           "Missed beacon: %d - initiate "
4267                           "roaming\n", missed_count);
4268                 if (!(priv->status & STATUS_ROAMING)) {
4269                         priv->status |= STATUS_ROAMING;
4270                         if (!(priv->status & STATUS_SCANNING))
4271                                 queue_work(priv->workqueue,
4272                                            &priv->request_scan);
4273                 }
4274                 return;
4275         }
4276
4277         if (priv->status & STATUS_SCANNING) {
4278                 /* Stop scan to keep fw from getting
4279                  * stuck (only if we aren't roaming --
4280                  * otherwise we'll never scan more than 2 or 3
4281                  * channels..) */
4282                 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE,
4283                           "Aborting scan with missed beacon.\n");
4284                 queue_work(priv->workqueue, &priv->abort_scan);
4285         }
4286
4287         IPW_DEBUG_NOTIF("Missed beacon: %d\n", missed_count);
4288 }
4289
4290 /**
4291  * Handle host notification packet.
4292  * Called from interrupt routine
4293  */
4294 static void ipw_rx_notification(struct ipw_priv *priv,
4295                                        struct ipw_rx_notification *notif)
4296 {
4297         notif->size = le16_to_cpu(notif->size);
4298
4299         IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", notif->subtype, notif->size);
4300
4301         switch (notif->subtype) {
4302         case HOST_NOTIFICATION_STATUS_ASSOCIATED:{
4303                         struct notif_association *assoc = &notif->u.assoc;
4304
4305                         switch (assoc->state) {
4306                         case CMAS_ASSOCIATED:{
4307                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4308                                                   IPW_DL_ASSOC,
4309                                                   "associated: '%s' " MAC_FMT
4310                                                   " \n",
4311                                                   escape_essid(priv->essid,
4312                                                                priv->essid_len),
4313                                                   MAC_ARG(priv->bssid));
4314
4315                                         switch (priv->ieee->iw_mode) {
4316                                         case IW_MODE_INFRA:
4317                                                 memcpy(priv->ieee->bssid,
4318                                                        priv->bssid, ETH_ALEN);
4319                                                 break;
4320
4321                                         case IW_MODE_ADHOC:
4322                                                 memcpy(priv->ieee->bssid,
4323                                                        priv->bssid, ETH_ALEN);
4324
4325                                                 /* clear out the station table */
4326                                                 priv->num_stations = 0;
4327
4328                                                 IPW_DEBUG_ASSOC
4329                                                     ("queueing adhoc check\n");
4330                                                 queue_delayed_work(priv->
4331                                                                    workqueue,
4332                                                                    &priv->
4333                                                                    adhoc_check,
4334                                                                    priv->
4335                                                                    assoc_request.
4336                                                                    beacon_interval);
4337                                                 break;
4338                                         }
4339
4340                                         priv->status &= ~STATUS_ASSOCIATING;
4341                                         priv->status |= STATUS_ASSOCIATED;
4342                                         queue_work(priv->workqueue,
4343                                                    &priv->system_config);
4344
4345 #ifdef CONFIG_IPW2200_QOS
4346 #define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \
4347                          le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_ctl))
4348                                         if ((priv->status & STATUS_AUTH) &&
4349                                             (IPW_GET_PACKET_STYPE(&notif->u.raw)
4350                                              == IEEE80211_STYPE_ASSOC_RESP)) {
4351                                                 if ((sizeof
4352                                                      (struct
4353                                                       ieee80211_assoc_response)
4354                                                      <= notif->size)
4355                                                     && (notif->size <= 2314)) {
4356                                                         struct
4357                                                         ieee80211_rx_stats
4358                                                             stats = {
4359                                                                 .len =
4360                                                                     notif->
4361                                                                     size - 1,
4362                                                         };
4363
4364                                                         IPW_DEBUG_QOS
4365                                                             ("QoS Associate "
4366                                                              "size %d\n",
4367                                                              notif->size);
4368                                                         ieee80211_rx_mgt(priv->
4369                                                                          ieee,
4370                                                                          (struct
4371                                                                           ieee80211_hdr_4addr
4372                                                                           *)
4373                                                                          &notif->u.raw, &stats);
4374                                                 }
4375                                         }
4376 #endif
4377
4378                                         schedule_work(&priv->link_up);
4379
4380                                         break;
4381                                 }
4382
4383                         case CMAS_AUTHENTICATED:{
4384                                         if (priv->
4385                                             status & (STATUS_ASSOCIATED |
4386                                                       STATUS_AUTH)) {
4387                                                 struct notif_authenticate *auth
4388                                                     = &notif->u.auth;
4389                                                 IPW_DEBUG(IPW_DL_NOTIF |
4390                                                           IPW_DL_STATE |
4391                                                           IPW_DL_ASSOC,
4392                                                           "deauthenticated: '%s' "
4393                                                           MAC_FMT
4394                                                           ": (0x%04X) - %s \n",
4395                                                           escape_essid(priv->
4396                                                                        essid,
4397                                                                        priv->
4398                                                                        essid_len),
4399                                                           MAC_ARG(priv->bssid),
4400                                                           ntohs(auth->status),
4401                                                           ipw_get_status_code
4402                                                           (ntohs
4403                                                            (auth->status)));
4404
4405                                                 priv->status &=
4406                                                     ~(STATUS_ASSOCIATING |
4407                                                       STATUS_AUTH |
4408                                                       STATUS_ASSOCIATED);
4409
4410                                                 schedule_work(&priv->link_down);
4411                                                 break;
4412                                         }
4413
4414                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4415                                                   IPW_DL_ASSOC,
4416                                                   "authenticated: '%s' " MAC_FMT
4417                                                   "\n",
4418                                                   escape_essid(priv->essid,
4419                                                                priv->essid_len),
4420                                                   MAC_ARG(priv->bssid));
4421                                         break;
4422                                 }
4423
4424                         case CMAS_INIT:{
4425                                         if (priv->status & STATUS_AUTH) {
4426                                                 struct
4427                                                     ieee80211_assoc_response
4428                                                 *resp;
4429                                                 resp =
4430                                                     (struct
4431                                                      ieee80211_assoc_response
4432                                                      *)&notif->u.raw;
4433                                                 IPW_DEBUG(IPW_DL_NOTIF |
4434                                                           IPW_DL_STATE |
4435                                                           IPW_DL_ASSOC,
4436                                                           "association failed (0x%04X): %s\n",
4437                                                           ntohs(resp->status),
4438                                                           ipw_get_status_code
4439                                                           (ntohs
4440                                                            (resp->status)));
4441                                         }
4442
4443                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4444                                                   IPW_DL_ASSOC,
4445                                                   "disassociated: '%s' " MAC_FMT
4446                                                   " \n",
4447                                                   escape_essid(priv->essid,
4448                                                                priv->essid_len),
4449                                                   MAC_ARG(priv->bssid));
4450
4451                                         priv->status &=
4452                                             ~(STATUS_DISASSOCIATING |
4453                                               STATUS_ASSOCIATING |
4454                                               STATUS_ASSOCIATED | STATUS_AUTH);
4455                                         if (priv->assoc_network
4456                                             && (priv->assoc_network->
4457                                                 capability &
4458                                                 WLAN_CAPABILITY_IBSS))
4459                                                 ipw_remove_current_network
4460                                                     (priv);
4461
4462                                         schedule_work(&priv->link_down);
4463
4464                                         break;
4465                                 }
4466
4467                         case CMAS_RX_ASSOC_RESP:
4468                                 break;
4469
4470                         default:
4471                                 IPW_ERROR("assoc: unknown (%d)\n",
4472                                           assoc->state);
4473                                 break;
4474                         }
4475
4476                         break;
4477                 }
4478
4479         case HOST_NOTIFICATION_STATUS_AUTHENTICATE:{
4480                         struct notif_authenticate *auth = &notif->u.auth;
4481                         switch (auth->state) {
4482                         case CMAS_AUTHENTICATED:
4483                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4484                                           "authenticated: '%s' " MAC_FMT " \n",
4485                                           escape_essid(priv->essid,
4486                                                        priv->essid_len),
4487                                           MAC_ARG(priv->bssid));
4488                                 priv->status |= STATUS_AUTH;
4489                                 break;
4490
4491                         case CMAS_INIT:
4492                                 if (priv->status & STATUS_AUTH) {
4493                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4494                                                   IPW_DL_ASSOC,
4495                                                   "authentication failed (0x%04X): %s\n",
4496                                                   ntohs(auth->status),
4497                                                   ipw_get_status_code(ntohs
4498                                                                       (auth->
4499                                                                        status)));
4500                                 }
4501                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4502                                           IPW_DL_ASSOC,
4503                                           "deauthenticated: '%s' " MAC_FMT "\n",
4504                                           escape_essid(priv->essid,
4505                                                        priv->essid_len),
4506                                           MAC_ARG(priv->bssid));
4507
4508                                 priv->status &= ~(STATUS_ASSOCIATING |
4509                                                   STATUS_AUTH |
4510                                                   STATUS_ASSOCIATED);
4511
4512                                 schedule_work(&priv->link_down);
4513                                 break;
4514
4515                         case CMAS_TX_AUTH_SEQ_1:
4516                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4517                                           IPW_DL_ASSOC, "AUTH_SEQ_1\n");
4518                                 break;
4519                         case CMAS_RX_AUTH_SEQ_2:
4520                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4521                                           IPW_DL_ASSOC, "AUTH_SEQ_2\n");
4522                                 break;
4523                         case CMAS_AUTH_SEQ_1_PASS:
4524                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4525                                           IPW_DL_ASSOC, "AUTH_SEQ_1_PASS\n");
4526                                 break;
4527                         case CMAS_AUTH_SEQ_1_FAIL:
4528                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4529                                           IPW_DL_ASSOC, "AUTH_SEQ_1_FAIL\n");
4530                                 break;
4531                         case CMAS_TX_AUTH_SEQ_3:
4532                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4533                                           IPW_DL_ASSOC, "AUTH_SEQ_3\n");
4534                                 break;
4535                         case CMAS_RX_AUTH_SEQ_4:
4536                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4537                                           IPW_DL_ASSOC, "RX_AUTH_SEQ_4\n");
4538                                 break;
4539                         case CMAS_AUTH_SEQ_2_PASS:
4540                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4541                                           IPW_DL_ASSOC, "AUTH_SEQ_2_PASS\n");
4542                                 break;
4543                         case CMAS_AUTH_SEQ_2_FAIL:
4544                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4545                                           IPW_DL_ASSOC, "AUT_SEQ_2_FAIL\n");
4546                                 break;
4547                         case CMAS_TX_ASSOC:
4548                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4549                                           IPW_DL_ASSOC, "TX_ASSOC\n");
4550                                 break;
4551                         case CMAS_RX_ASSOC_RESP:
4552                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4553                                           IPW_DL_ASSOC, "RX_ASSOC_RESP\n");
4554
4555                                 break;
4556                         case CMAS_ASSOCIATED:
4557                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4558                                           IPW_DL_ASSOC, "ASSOCIATED\n");
4559                                 break;
4560                         default:
4561                                 IPW_DEBUG_NOTIF("auth: failure - %d\n",
4562                                                 auth->state);
4563                                 break;
4564                         }
4565                         break;
4566                 }
4567
4568         case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT:{
4569                         struct notif_channel_result *x =
4570                             &notif->u.channel_result;
4571
4572                         if (notif->size == sizeof(*x)) {
4573                                 IPW_DEBUG_SCAN("Scan result for channel %d\n",
4574                                                x->channel_num);
4575                         } else {
4576                                 IPW_DEBUG_SCAN("Scan result of wrong size %d "
4577                                                "(should be %zd)\n",
4578                                                notif->size, sizeof(*x));
4579                         }
4580                         break;
4581                 }
4582
4583         case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED:{
4584                         struct notif_scan_complete *x = &notif->u.scan_complete;
4585                         if (notif->size == sizeof(*x)) {
4586                                 IPW_DEBUG_SCAN
4587                                     ("Scan completed: type %d, %d channels, "
4588                                      "%d status\n", x->scan_type,
4589                                      x->num_channels, x->status);
4590                         } else {
4591                                 IPW_ERROR("Scan completed of wrong size %d "
4592                                           "(should be %zd)\n",
4593                                           notif->size, sizeof(*x));
4594                         }
4595
4596                         priv->status &=
4597                             ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
4598
4599                         wake_up_interruptible(&priv->wait_state);
4600                         cancel_delayed_work(&priv->scan_check);
4601
4602                         if (priv->status & STATUS_EXIT_PENDING)
4603                                 break;
4604
4605                         priv->ieee->scans++;
4606
4607 #ifdef CONFIG_IPW2200_MONITOR
4608                         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
4609                                 priv->status |= STATUS_SCAN_FORCED;
4610                                 queue_work(priv->workqueue,
4611                                            &priv->request_scan);
4612                                 break;
4613                         }
4614                         priv->status &= ~STATUS_SCAN_FORCED;
4615 #endif                          /* CONFIG_IPW2200_MONITOR */
4616
4617                         if (!(priv->status & (STATUS_ASSOCIATED |
4618                                               STATUS_ASSOCIATING |
4619                                               STATUS_ROAMING |
4620                                               STATUS_DISASSOCIATING)))
4621                                 queue_work(priv->workqueue, &priv->associate);
4622                         else if (priv->status & STATUS_ROAMING) {
4623                                 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE)
4624                                         /* If a scan completed and we are in roam mode, then
4625                                          * the scan that completed was the one requested as a
4626                                          * result of entering roam... so, schedule the
4627                                          * roam work */
4628                                         queue_work(priv->workqueue,
4629                                                    &priv->roam);
4630                                 else
4631                                         /* Don't schedule if we aborted the scan */
4632                                         priv->status &= ~STATUS_ROAMING;
4633                         } else if (priv->status & STATUS_SCAN_PENDING)
4634                                 queue_work(priv->workqueue,
4635                                            &priv->request_scan);
4636                         else if (priv->config & CFG_BACKGROUND_SCAN
4637                                  && priv->status & STATUS_ASSOCIATED)
4638                                 queue_delayed_work(priv->workqueue,
4639                                                    &priv->request_scan, HZ);
4640
4641                         /* Send an empty event to user space.
4642                          * We don't send the received data on the event because
4643                          * it would require us to do complex transcoding, and
4644                          * we want to minimise the work done in the irq handler
4645                          * Use a request to extract the data.
4646                          * Also, we generate this even for any scan, regardless
4647                          * on how the scan was initiated. User space can just
4648                          * sync on periodic scan to get fresh data...
4649                          * Jean II */
4650                         if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) {
4651                                 union iwreq_data wrqu;
4652
4653                                 wrqu.data.length = 0;
4654                                 wrqu.data.flags = 0;
4655                                 wireless_send_event(priv->net_dev, SIOCGIWSCAN,
4656                                                     &wrqu, NULL);
4657                         }
4658                         break;
4659                 }
4660
4661         case HOST_NOTIFICATION_STATUS_FRAG_LENGTH:{
4662                         struct notif_frag_length *x = &notif->u.frag_len;
4663
4664                         if (notif->size == sizeof(*x))
4665                                 IPW_ERROR("Frag length: %d\n",
4666                                           le16_to_cpu(x->frag_length));
4667                         else
4668                                 IPW_ERROR("Frag length of wrong size %d "
4669                                           "(should be %zd)\n",
4670                                           notif->size, sizeof(*x));
4671                         break;
4672                 }
4673
4674         case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION:{
4675                         struct notif_link_deterioration *x =
4676                             &notif->u.link_deterioration;
4677
4678                         if (notif->size == sizeof(*x)) {
4679                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4680                                         "link deterioration: type %d, cnt %d\n",
4681                                         x->silence_notification_type,
4682                                         x->silence_count);
4683                                 memcpy(&priv->last_link_deterioration, x,
4684                                        sizeof(*x));
4685                         } else {
4686                                 IPW_ERROR("Link Deterioration of wrong size %d "
4687                                           "(should be %zd)\n",
4688                                           notif->size, sizeof(*x));
4689                         }
4690                         break;
4691                 }
4692
4693         case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE:{
4694                         IPW_ERROR("Dino config\n");
4695                         if (priv->hcmd
4696                             && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG)
4697                                 IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n");
4698
4699                         break;
4700                 }
4701
4702         case HOST_NOTIFICATION_STATUS_BEACON_STATE:{
4703                         struct notif_beacon_state *x = &notif->u.beacon_state;
4704                         if (notif->size != sizeof(*x)) {
4705                                 IPW_ERROR
4706                                     ("Beacon state of wrong size %d (should "
4707                                      "be %zd)\n", notif->size, sizeof(*x));
4708                                 break;
4709                         }
4710
4711                         if (le32_to_cpu(x->state) ==
4712                             HOST_NOTIFICATION_STATUS_BEACON_MISSING)
4713                                 ipw_handle_missed_beacon(priv,
4714                                                          le32_to_cpu(x->
4715                                                                      number));
4716
4717                         break;
4718                 }
4719
4720         case HOST_NOTIFICATION_STATUS_TGI_TX_KEY:{
4721                         struct notif_tgi_tx_key *x = &notif->u.tgi_tx_key;
4722                         if (notif->size == sizeof(*x)) {
4723                                 IPW_ERROR("TGi Tx Key: state 0x%02x sec type "
4724                                           "0x%02x station %d\n",
4725                                           x->key_state, x->security_type,
4726                                           x->station_index);
4727                                 break;
4728                         }
4729
4730                         IPW_ERROR
4731                             ("TGi Tx Key of wrong size %d (should be %zd)\n",
4732                              notif->size, sizeof(*x));
4733                         break;
4734                 }
4735
4736         case HOST_NOTIFICATION_CALIB_KEEP_RESULTS:{
4737                         struct notif_calibration *x = &notif->u.calibration;
4738
4739                         if (notif->size == sizeof(*x)) {
4740                                 memcpy(&priv->calib, x, sizeof(*x));
4741                                 IPW_DEBUG_INFO("TODO: Calibration\n");
4742                                 break;
4743                         }
4744
4745                         IPW_ERROR
4746                             ("Calibration of wrong size %d (should be %zd)\n",
4747                              notif->size, sizeof(*x));
4748                         break;
4749                 }
4750
4751         case HOST_NOTIFICATION_NOISE_STATS:{
4752                         if (notif->size == sizeof(u32)) {
4753                                 priv->exp_avg_noise =
4754                                     exponential_average(priv->exp_avg_noise,
4755                                     (u8) (le32_to_cpu(notif->u.noise.value) & 0xff),
4756                                     DEPTH_NOISE);
4757                                 break;
4758                         }
4759
4760                         IPW_ERROR
4761                             ("Noise stat is wrong size %d (should be %zd)\n",
4762                              notif->size, sizeof(u32));
4763                         break;
4764                 }
4765
4766         default:
4767                 IPW_DEBUG_NOTIF("Unknown notification: "
4768                                 "subtype=%d,flags=0x%2x,size=%d\n",
4769                                 notif->subtype, notif->flags, notif->size);
4770         }
4771 }
4772
4773 /**
4774  * Destroys all DMA structures and initialise them again
4775  *
4776  * @param priv
4777  * @return error code
4778  */
4779 static int ipw_queue_reset(struct ipw_priv *priv)
4780 {
4781         int rc = 0;
4782         /** @todo customize queue sizes */
4783         int nTx = 64, nTxCmd = 8;
4784         ipw_tx_queue_free(priv);
4785         /* Tx CMD queue */
4786         rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd,
4787                                IPW_TX_CMD_QUEUE_READ_INDEX,
4788                                IPW_TX_CMD_QUEUE_WRITE_INDEX,
4789                                IPW_TX_CMD_QUEUE_BD_BASE,
4790                                IPW_TX_CMD_QUEUE_BD_SIZE);
4791         if (rc) {
4792                 IPW_ERROR("Tx Cmd queue init failed\n");
4793                 goto error;
4794         }
4795         /* Tx queue(s) */
4796         rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx,
4797                                IPW_TX_QUEUE_0_READ_INDEX,
4798                                IPW_TX_QUEUE_0_WRITE_INDEX,
4799                                IPW_TX_QUEUE_0_BD_BASE, IPW_TX_QUEUE_0_BD_SIZE);
4800         if (rc) {
4801                 IPW_ERROR("Tx 0 queue init failed\n");
4802                 goto error;
4803         }
4804         rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx,
4805                                IPW_TX_QUEUE_1_READ_INDEX,
4806                                IPW_TX_QUEUE_1_WRITE_INDEX,
4807                                IPW_TX_QUEUE_1_BD_BASE, IPW_TX_QUEUE_1_BD_SIZE);
4808         if (rc) {
4809                 IPW_ERROR("Tx 1 queue init failed\n");
4810                 goto error;
4811         }
4812         rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx,
4813                                IPW_TX_QUEUE_2_READ_INDEX,
4814                                IPW_TX_QUEUE_2_WRITE_INDEX,
4815                                IPW_TX_QUEUE_2_BD_BASE, IPW_TX_QUEUE_2_BD_SIZE);
4816         if (rc) {
4817                 IPW_ERROR("Tx 2 queue init failed\n");
4818                 goto error;
4819         }
4820         rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx,
4821                                IPW_TX_QUEUE_3_READ_INDEX,
4822                                IPW_TX_QUEUE_3_WRITE_INDEX,
4823                                IPW_TX_QUEUE_3_BD_BASE, IPW_TX_QUEUE_3_BD_SIZE);
4824         if (rc) {
4825                 IPW_ERROR("Tx 3 queue init failed\n");
4826                 goto error;
4827         }
4828         /* statistics */
4829         priv->rx_bufs_min = 0;
4830         priv->rx_pend_max = 0;
4831         return rc;
4832
4833       error:
4834         ipw_tx_queue_free(priv);
4835         return rc;
4836 }
4837
4838 /**
4839  * Reclaim Tx queue entries no more used by NIC.
4840  *
4841  * When FW adwances 'R' index, all entries between old and
4842  * new 'R' index need to be reclaimed. As result, some free space
4843  * forms. If there is enough free space (> low mark), wake Tx queue.
4844  *
4845  * @note Need to protect against garbage in 'R' index
4846  * @param priv
4847  * @param txq
4848  * @param qindex
4849  * @return Number of used entries remains in the queue
4850  */
4851 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
4852                                 struct clx2_tx_queue *txq, int qindex)
4853 {
4854         u32 hw_tail;
4855         int used;
4856         struct clx2_queue *q = &txq->q;
4857
4858         hw_tail = ipw_read32(priv, q->reg_r);
4859         if (hw_tail >= q->n_bd) {
4860                 IPW_ERROR
4861                     ("Read index for DMA queue (%d) is out of range [0-%d)\n",
4862                      hw_tail, q->n_bd);
4863                 goto done;
4864         }
4865         for (; q->last_used != hw_tail;
4866              q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
4867                 ipw_queue_tx_free_tfd(priv, txq);
4868                 priv->tx_packets++;
4869         }
4870       done:
4871         if ((ipw_queue_space(q) > q->low_mark) &&
4872             (qindex >= 0) &&
4873             (priv->status & STATUS_ASSOCIATED) && netif_running(priv->net_dev))
4874                 netif_wake_queue(priv->net_dev);
4875         used = q->first_empty - q->last_used;
4876         if (used < 0)
4877                 used += q->n_bd;
4878
4879         return used;
4880 }
4881
4882 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
4883                              int len, int sync)
4884 {
4885         struct clx2_tx_queue *txq = &priv->txq_cmd;
4886         struct clx2_queue *q = &txq->q;
4887         struct tfd_frame *tfd;
4888
4889         if (ipw_queue_space(q) < (sync ? 1 : 2)) {
4890                 IPW_ERROR("No space for Tx\n");
4891                 return -EBUSY;
4892         }
4893
4894         tfd = &txq->bd[q->first_empty];
4895         txq->txb[q->first_empty] = NULL;
4896
4897         memset(tfd, 0, sizeof(*tfd));
4898         tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE;
4899         tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
4900         priv->hcmd_seq++;
4901         tfd->u.cmd.index = hcmd;
4902         tfd->u.cmd.length = len;
4903         memcpy(tfd->u.cmd.payload, buf, len);
4904         q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
4905         ipw_write32(priv, q->reg_w, q->first_empty);
4906         _ipw_read32(priv, 0x90);
4907
4908         return 0;
4909 }
4910
4911 /*
4912  * Rx theory of operation
4913  *
4914  * The host allocates 32 DMA target addresses and passes the host address
4915  * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
4916  * 0 to 31
4917  *
4918  * Rx Queue Indexes
4919  * The host/firmware share two index registers for managing the Rx buffers.
4920  *
4921  * The READ index maps to the first position that the firmware may be writing
4922  * to -- the driver can read up to (but not including) this position and get
4923  * good data.
4924  * The READ index is managed by the firmware once the card is enabled.
4925  *
4926  * The WRITE index maps to the last position the driver has read from -- the
4927  * position preceding WRITE is the last slot the firmware can place a packet.
4928  *
4929  * The queue is empty (no good data) if WRITE = READ - 1, and is full if
4930  * WRITE = READ.
4931  *
4932  * During initialization the host sets up the READ queue position to the first
4933  * INDEX position, and WRITE to the last (READ - 1 wrapped)
4934  *
4935  * When the firmware places a packet in a buffer it will advance the READ index
4936  * and fire the RX interrupt.  The driver can then query the READ index and
4937  * process as many packets as possible, moving the WRITE index forward as it
4938  * resets the Rx queue buffers with new memory.
4939  *
4940  * The management in the driver is as follows:
4941  * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free.  When
4942  *   ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
4943  *   to replensish the ipw->rxq->rx_free.
4944  * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the
4945  *   ipw->rxq is replenished and the READ INDEX is updated (updating the
4946  *   'processed' and 'read' driver indexes as well)
4947  * + A received packet is processed and handed to the kernel network stack,
4948  *   detached from the ipw->rxq.  The driver 'processed' index is updated.
4949  * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free
4950  *   list. If there are no allocated buffers in ipw->rxq->rx_free, the READ
4951  *   INDEX is not incremented and ipw->status(RX_STALLED) is set.  If there
4952  *   were enough free buffers and RX_STALLED is set it is cleared.
4953  *
4954  *
4955  * Driver sequence:
4956  *
4957  * ipw_rx_queue_alloc()       Allocates rx_free
4958  * ipw_rx_queue_replenish()   Replenishes rx_free list from rx_used, and calls
4959  *                            ipw_rx_queue_restock
4960  * ipw_rx_queue_restock()     Moves available buffers from rx_free into Rx
4961  *                            queue, updates firmware pointers, and updates
4962  *                            the WRITE index.  If insufficient rx_free buffers
4963  *                            are available, schedules ipw_rx_queue_replenish
4964  *
4965  * -- enable interrupts --
4966  * ISR - ipw_rx()             Detach ipw_rx_mem_buffers from pool up to the
4967  *                            READ INDEX, detaching the SKB from the pool.
4968  *                            Moves the packet buffer from queue to rx_used.
4969  *                            Calls ipw_rx_queue_restock to refill any empty
4970  *                            slots.
4971  * ...
4972  *
4973  */
4974
4975 /*
4976  * If there are slots in the RX queue that  need to be restocked,
4977  * and we have free pre-allocated buffers, fill the ranks as much
4978  * as we can pulling from rx_free.
4979  *
4980  * This moves the 'write' index forward to catch up with 'processed', and
4981  * also updates the memory address in the firmware to reference the new
4982  * target buffer.
4983  */
4984 static void ipw_rx_queue_restock(struct ipw_priv *priv)
4985 {
4986         struct ipw_rx_queue *rxq = priv->rxq;
4987         struct list_head *element;
4988         struct ipw_rx_mem_buffer *rxb;
4989         unsigned long flags;
4990         int write;
4991
4992         spin_lock_irqsave(&rxq->lock, flags);
4993         write = rxq->write;
4994         while ((rxq->write != rxq->processed) && (rxq->free_count)) {
4995                 element = rxq->rx_free.next;
4996                 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
4997                 list_del(element);
4998
4999                 ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE,
5000                             rxb->dma_addr);
5001                 rxq->queue[rxq->write] = rxb;
5002                 rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE;
5003                 rxq->free_count--;
5004         }
5005         spin_unlock_irqrestore(&rxq->lock, flags);
5006
5007         /* If the pre-allocated buffer pool is dropping low, schedule to
5008          * refill it */
5009         if (rxq->free_count <= RX_LOW_WATERMARK)
5010                 queue_work(priv->workqueue, &priv->rx_replenish);
5011
5012         /* If we've added more space for the firmware to place data, tell it */
5013         if (write != rxq->write)
5014                 ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write);
5015 }
5016
5017 /*
5018  * Move all used packet from rx_used to rx_free, allocating a new SKB for each.
5019  * Also restock the Rx queue via ipw_rx_queue_restock.
5020  *
5021  * This is called as a scheduled work item (except for during intialization)
5022  */
5023 static void ipw_rx_queue_replenish(void *data)
5024 {
5025         struct ipw_priv *priv = data;
5026         struct ipw_rx_queue *rxq = priv->rxq;
5027         struct list_head *element;
5028         struct ipw_rx_mem_buffer *rxb;
5029         unsigned long flags;
5030
5031         spin_lock_irqsave(&rxq->lock, flags);
5032         while (!list_empty(&rxq->rx_used)) {
5033                 element = rxq->rx_used.next;
5034                 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
5035                 rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC);
5036                 if (!rxb->skb) {
5037                         printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n",
5038                                priv->net_dev->name);
5039                         /* We don't reschedule replenish work here -- we will
5040                          * call the restock method and if it still needs
5041                          * more buffers it will schedule replenish */
5042                         break;
5043                 }
5044                 list_del(element);
5045
5046                 rxb->dma_addr =
5047                     pci_map_single(priv->pci_dev, rxb->skb->data,
5048                                    IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5049
5050                 list_add_tail(&rxb->list, &rxq->rx_free);
5051                 rxq->free_count++;
5052         }
5053         spin_unlock_irqrestore(&rxq->lock, flags);
5054
5055         ipw_rx_queue_restock(priv);
5056 }
5057
5058 static void ipw_bg_rx_queue_replenish(void *data)
5059 {
5060         struct ipw_priv *priv = data;
5061         mutex_lock(&priv->mutex);
5062         ipw_rx_queue_replenish(data);
5063         mutex_unlock(&priv->mutex);
5064 }
5065
5066 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
5067  * If an SKB has been detached, the POOL needs to have its SKB set to NULL
5068  * This free routine walks the list of POOL entries and if SKB is set to
5069  * non NULL it is unmapped and freed
5070  */
5071 static void ipw_rx_queue_free(struct ipw_priv *priv, struct ipw_rx_queue *rxq)
5072 {
5073         int i;
5074
5075         if (!rxq)
5076                 return;
5077
5078         for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
5079                 if (rxq->pool[i].skb != NULL) {
5080                         pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
5081                                          IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
5082                         dev_kfree_skb(rxq->pool[i].skb);
5083                 }
5084         }
5085
5086         kfree(rxq);
5087 }
5088
5089 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv)
5090 {
5091         struct ipw_rx_queue *rxq;
5092         int i;
5093
5094         rxq = kzalloc(sizeof(*rxq), GFP_KERNEL);
5095         if (unlikely(!rxq)) {
5096                 IPW_ERROR("memory allocation failed\n");
5097                 return NULL;
5098         }
5099         spin_lock_init(&rxq->lock);
5100         INIT_LIST_HEAD(&rxq->rx_free);
5101         INIT_LIST_HEAD(&rxq->rx_used);
5102
5103         /* Fill the rx_used queue with _all_ of the Rx buffers */
5104         for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
5105                 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
5106
5107         /* Set us so that we have processed and used all buffers, but have
5108          * not restocked the Rx queue with fresh buffers */
5109         rxq->read = rxq->write = 0;
5110         rxq->processed = RX_QUEUE_SIZE - 1;
5111         rxq->free_count = 0;
5112
5113         return rxq;
5114 }
5115
5116 static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate)
5117 {
5118         rate &= ~IEEE80211_BASIC_RATE_MASK;
5119         if (ieee_mode == IEEE_A) {
5120                 switch (rate) {
5121                 case IEEE80211_OFDM_RATE_6MB:
5122                         return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ?
5123                             1 : 0;
5124                 case IEEE80211_OFDM_RATE_9MB:
5125                         return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ?
5126                             1 : 0;
5127                 case IEEE80211_OFDM_RATE_12MB:
5128                         return priv->
5129                             rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? 1 : 0;
5130                 case IEEE80211_OFDM_RATE_18MB:
5131                         return priv->
5132                             rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? 1 : 0;
5133                 case IEEE80211_OFDM_RATE_24MB:
5134                         return priv->
5135                             rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? 1 : 0;
5136                 case IEEE80211_OFDM_RATE_36MB:
5137                         return priv->
5138                             rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? 1 : 0;
5139                 case IEEE80211_OFDM_RATE_48MB:
5140                         return priv->
5141                             rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? 1 : 0;
5142                 case IEEE80211_OFDM_RATE_54MB:
5143                         return priv->
5144                             rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? 1 : 0;
5145                 default:
5146                         return 0;
5147                 }
5148         }
5149
5150         /* B and G mixed */
5151         switch (rate) {
5152         case IEEE80211_CCK_RATE_1MB:
5153                 return priv->rates_mask & IEEE80211_CCK_RATE_1MB_MASK ? 1 : 0;
5154         case IEEE80211_CCK_RATE_2MB:
5155                 return priv->rates_mask & IEEE80211_CCK_RATE_2MB_MASK ? 1 : 0;
5156         case IEEE80211_CCK_RATE_5MB:
5157                 return priv->rates_mask & IEEE80211_CCK_RATE_5MB_MASK ? 1 : 0;
5158         case IEEE80211_CCK_RATE_11MB:
5159                 return priv->rates_mask & IEEE80211_CCK_RATE_11MB_MASK ? 1 : 0;
5160         }
5161
5162         /* If we are limited to B modulations, bail at this point */
5163         if (ieee_mode == IEEE_B)
5164                 return 0;
5165
5166         /* G */
5167         switch (rate) {
5168         case IEEE80211_OFDM_RATE_6MB:
5169                 return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ? 1 : 0;
5170         case IEEE80211_OFDM_RATE_9MB:
5171                 return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ? 1 : 0;
5172         case IEEE80211_OFDM_RATE_12MB:
5173                 return priv->rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? 1 : 0;
5174         case IEEE80211_OFDM_RATE_18MB:
5175                 return priv->rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? 1 : 0;
5176         case IEEE80211_OFDM_RATE_24MB:
5177                 return priv->rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? 1 : 0;
5178         case IEEE80211_OFDM_RATE_36MB:
5179                 return priv->rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? 1 : 0;
5180         case IEEE80211_OFDM_RATE_48MB:
5181                 return priv->rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? 1 : 0;
5182         case IEEE80211_OFDM_RATE_54MB:
5183                 return priv->rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? 1 : 0;
5184         }
5185
5186         return 0;
5187 }
5188
5189 static int ipw_compatible_rates(struct ipw_priv *priv,
5190                                 const struct ieee80211_network *network,
5191                                 struct ipw_supported_rates *rates)
5192 {
5193         int num_rates, i;
5194
5195         memset(rates, 0, sizeof(*rates));
5196         num_rates = min(network->rates_len, (u8) IPW_MAX_RATES);
5197         rates->num_rates = 0;
5198         for (i = 0; i < num_rates; i++) {
5199                 if (!ipw_is_rate_in_mask(priv, network->mode,
5200                                          network->rates[i])) {
5201
5202                         if (network->rates[i] & IEEE80211_BASIC_RATE_MASK) {
5203                                 IPW_DEBUG_SCAN("Adding masked mandatory "
5204                                                "rate %02X\n",
5205                                                network->rates[i]);
5206                                 rates->supported_rates[rates->num_rates++] =
5207                                     network->rates[i];
5208                                 continue;
5209                         }
5210
5211                         IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5212                                        network->rates[i], priv->rates_mask);
5213                         continue;
5214                 }
5215
5216                 rates->supported_rates[rates->num_rates++] = network->rates[i];
5217         }
5218
5219         num_rates = min(network->rates_ex_len,
5220                         (u8) (IPW_MAX_RATES - num_rates));
5221         for (i = 0; i < num_rates; i++) {
5222                 if (!ipw_is_rate_in_mask(priv, network->mode,
5223                                          network->rates_ex[i])) {
5224                         if (network->rates_ex[i] & IEEE80211_BASIC_RATE_MASK) {
5225                                 IPW_DEBUG_SCAN("Adding masked mandatory "
5226                                                "rate %02X\n",
5227                                                network->rates_ex[i]);
5228                                 rates->supported_rates[rates->num_rates++] =
5229                                     network->rates[i];
5230                                 continue;
5231                         }
5232
5233                         IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5234                                        network->rates_ex[i], priv->rates_mask);
5235                         continue;
5236                 }
5237
5238                 rates->supported_rates[rates->num_rates++] =
5239                     network->rates_ex[i];
5240         }
5241
5242         return 1;
5243 }
5244
5245 static void ipw_copy_rates(struct ipw_supported_rates *dest,
5246                                   const struct ipw_supported_rates *src)
5247 {
5248         u8 i;
5249         for (i = 0; i < src->num_rates; i++)
5250                 dest->supported_rates[i] = src->supported_rates[i];
5251         dest->num_rates = src->num_rates;
5252 }
5253
5254 /* TODO: Look at sniffed packets in the air to determine if the basic rate
5255  * mask should ever be used -- right now all callers to add the scan rates are
5256  * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */
5257 static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates,
5258                                    u8 modulation, u32 rate_mask)
5259 {
5260         u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
5261             IEEE80211_BASIC_RATE_MASK : 0;
5262
5263         if (rate_mask & IEEE80211_CCK_RATE_1MB_MASK)
5264                 rates->supported_rates[rates->num_rates++] =
5265                     IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
5266
5267         if (rate_mask & IEEE80211_CCK_RATE_2MB_MASK)
5268                 rates->supported_rates[rates->num_rates++] =
5269                     IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
5270
5271         if (rate_mask & IEEE80211_CCK_RATE_5MB_MASK)
5272                 rates->supported_rates[rates->num_rates++] = basic_mask |
5273                     IEEE80211_CCK_RATE_5MB;
5274
5275         if (rate_mask & IEEE80211_CCK_RATE_11MB_MASK)
5276                 rates->supported_rates[rates->num_rates++] = basic_mask |
5277                     IEEE80211_CCK_RATE_11MB;
5278 }
5279
5280 static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates,
5281                                     u8 modulation, u32 rate_mask)
5282 {
5283         u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
5284             IEEE80211_BASIC_RATE_MASK : 0;
5285
5286         if (rate_mask & IEEE80211_OFDM_RATE_6MB_MASK)
5287                 rates->supported_rates[rates->num_rates++] = basic_mask |
5288                     IEEE80211_OFDM_RATE_6MB;
5289
5290         if (rate_mask & IEEE80211_OFDM_RATE_9MB_MASK)
5291                 rates->supported_rates[rates->num_rates++] =
5292                     IEEE80211_OFDM_RATE_9MB;
5293
5294         if (rate_mask & IEEE80211_OFDM_RATE_12MB_MASK)
5295                 rates->supported_rates[rates->num_rates++] = basic_mask |
5296                     IEEE80211_OFDM_RATE_12MB;
5297
5298         if (rate_mask & IEEE80211_OFDM_RATE_18MB_MASK)
5299                 rates->supported_rates[rates->num_rates++] =
5300                     IEEE80211_OFDM_RATE_18MB;
5301
5302         if (rate_mask & IEEE80211_OFDM_RATE_24MB_MASK)
5303                 rates->supported_rates[rates->num_rates++] = basic_mask |
5304                     IEEE80211_OFDM_RATE_24MB;
5305
5306         if (rate_mask & IEEE80211_OFDM_RATE_36MB_MASK)
5307                 rates->supported_rates[rates->num_rates++] =
5308                     IEEE80211_OFDM_RATE_36MB;
5309
5310         if (rate_mask & IEEE80211_OFDM_RATE_48MB_MASK)
5311                 rates->supported_rates[rates->num_rates++] =
5312                     IEEE80211_OFDM_RATE_48MB;
5313
5314         if (rate_mask & IEEE80211_OFDM_RATE_54MB_MASK)
5315                 rates->supported_rates[rates->num_rates++] =
5316                     IEEE80211_OFDM_RATE_54MB;
5317 }
5318
5319 struct ipw_network_match {
5320         struct ieee80211_network *network;
5321         struct ipw_supported_rates rates;
5322 };
5323
5324 static int ipw_find_adhoc_network(struct ipw_priv *priv,
5325                                   struct ipw_network_match *match,
5326                                   struct ieee80211_network *network,
5327                                   int roaming)
5328 {
5329         struct ipw_supported_rates rates;
5330
5331         /* Verify that this network's capability is compatible with the
5332          * current mode (AdHoc or Infrastructure) */
5333         if ((priv->ieee->iw_mode == IW_MODE_ADHOC &&
5334              !(network->capability & WLAN_CAPABILITY_IBSS))) {
5335                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded due to "
5336                                 "capability mismatch.\n",
5337                                 escape_essid(network->ssid, network->ssid_len),
5338                                 MAC_ARG(network->bssid));
5339                 return 0;
5340         }
5341
5342         /* If we do not have an ESSID for this AP, we can not associate with
5343          * it */
5344         if (network->flags & NETWORK_EMPTY_ESSID) {
5345                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5346                                 "because of hidden ESSID.\n",
5347                                 escape_essid(network->ssid, network->ssid_len),
5348                                 MAC_ARG(network->bssid));
5349                 return 0;
5350         }
5351
5352         if (unlikely(roaming)) {
5353                 /* If we are roaming, then ensure check if this is a valid
5354                  * network to try and roam to */
5355                 if ((network->ssid_len != match->network->ssid_len) ||
5356                     memcmp(network->ssid, match->network->ssid,
5357                            network->ssid_len)) {
5358                         IPW_DEBUG_MERGE("Netowrk '%s (" MAC_FMT ")' excluded "
5359                                         "because of non-network ESSID.\n",
5360                                         escape_essid(network->ssid,
5361                                                      network->ssid_len),
5362                                         MAC_ARG(network->bssid));
5363                         return 0;
5364                 }
5365         } else {
5366                 /* If an ESSID has been configured then compare the broadcast
5367                  * ESSID to ours */
5368                 if ((priv->config & CFG_STATIC_ESSID) &&
5369                     ((network->ssid_len != priv->essid_len) ||
5370                      memcmp(network->ssid, priv->essid,
5371                             min(network->ssid_len, priv->essid_len)))) {
5372                         char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5373
5374                         strncpy(escaped,
5375                                 escape_essid(network->ssid, network->ssid_len),
5376                                 sizeof(escaped));
5377                         IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5378                                         "because of ESSID mismatch: '%s'.\n",
5379                                         escaped, MAC_ARG(network->bssid),
5380                                         escape_essid(priv->essid,
5381                                                      priv->essid_len));
5382                         return 0;
5383                 }
5384         }
5385
5386         /* If the old network rate is better than this one, don't bother
5387          * testing everything else. */
5388
5389         if (network->time_stamp[0] < match->network->time_stamp[0]) {
5390                 IPW_DEBUG_MERGE("Network '%s excluded because newer than "
5391                                 "current network.\n",
5392                                 escape_essid(match->network->ssid,
5393                                              match->network->ssid_len));
5394                 return 0;
5395         } else if (network->time_stamp[1] < match->network->time_stamp[1]) {
5396                 IPW_DEBUG_MERGE("Network '%s excluded because newer than "
5397                                 "current network.\n",
5398                                 escape_essid(match->network->ssid,
5399                                              match->network->ssid_len));
5400                 return 0;
5401         }
5402
5403         /* Now go through and see if the requested network is valid... */
5404         if (priv->ieee->scan_age != 0 &&
5405             time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5406                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5407                                 "because of age: %ums.\n",
5408                                 escape_essid(network->ssid, network->ssid_len),
5409                                 MAC_ARG(network->bssid),
5410                                 jiffies_to_msecs(jiffies -
5411                                                  network->last_scanned));
5412                 return 0;
5413         }
5414
5415         if ((priv->config & CFG_STATIC_CHANNEL) &&
5416             (network->channel != priv->channel)) {
5417                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5418                                 "because of channel mismatch: %d != %d.\n",
5419                                 escape_essid(network->ssid, network->ssid_len),
5420                                 MAC_ARG(network->bssid),
5421                                 network->channel, priv->channel);
5422                 return 0;
5423         }
5424
5425         /* Verify privacy compatability */
5426         if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5427             ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5428                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5429                                 "because of privacy mismatch: %s != %s.\n",
5430                                 escape_essid(network->ssid, network->ssid_len),
5431                                 MAC_ARG(network->bssid),
5432                                 priv->
5433                                 capability & CAP_PRIVACY_ON ? "on" : "off",
5434                                 network->
5435                                 capability & WLAN_CAPABILITY_PRIVACY ? "on" :
5436                                 "off");
5437                 return 0;
5438         }
5439
5440         if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
5441                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5442                                 "because of the same BSSID match: " MAC_FMT
5443                                 ".\n", escape_essid(network->ssid,
5444                                                     network->ssid_len),
5445                                 MAC_ARG(network->bssid), MAC_ARG(priv->bssid));
5446                 return 0;
5447         }
5448
5449         /* Filter out any incompatible freq / mode combinations */
5450         if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) {
5451                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5452                                 "because of invalid frequency/mode "
5453                                 "combination.\n",
5454                                 escape_essid(network->ssid, network->ssid_len),
5455                                 MAC_ARG(network->bssid));
5456                 return 0;
5457         }
5458
5459         /* Ensure that the rates supported by the driver are compatible with
5460          * this AP, including verification of basic rates (mandatory) */
5461         if (!ipw_compatible_rates(priv, network, &rates)) {
5462                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5463                                 "because configured rate mask excludes "
5464                                 "AP mandatory rate.\n",
5465                                 escape_essid(network->ssid, network->ssid_len),
5466                                 MAC_ARG(network->bssid));
5467                 return 0;
5468         }
5469
5470         if (rates.num_rates == 0) {
5471                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5472                                 "because of no compatible rates.\n",
5473                                 escape_essid(network->ssid, network->ssid_len),
5474                                 MAC_ARG(network->bssid));
5475                 return 0;
5476         }
5477
5478         /* TODO: Perform any further minimal comparititive tests.  We do not
5479          * want to put too much policy logic here; intelligent scan selection
5480          * should occur within a generic IEEE 802.11 user space tool.  */
5481
5482         /* Set up 'new' AP to this network */
5483         ipw_copy_rates(&match->rates, &rates);
5484         match->network = network;
5485         IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' is a viable match.\n",
5486                         escape_essid(network->ssid, network->ssid_len),
5487                         MAC_ARG(network->bssid));
5488
5489         return 1;
5490 }
5491
5492 static void ipw_merge_adhoc_network(void *data)
5493 {
5494         struct ipw_priv *priv = data;
5495         struct ieee80211_network *network = NULL;
5496         struct ipw_network_match match = {
5497                 .network = priv->assoc_network
5498         };
5499
5500         if ((priv->status & STATUS_ASSOCIATED) &&
5501             (priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5502                 /* First pass through ROAM process -- look for a better
5503                  * network */
5504                 unsigned long flags;
5505
5506                 spin_lock_irqsave(&priv->ieee->lock, flags);
5507                 list_for_each_entry(network, &priv->ieee->network_list, list) {
5508                         if (network != priv->assoc_network)
5509                                 ipw_find_adhoc_network(priv, &match, network,
5510                                                        1);
5511                 }
5512                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
5513
5514                 if (match.network == priv->assoc_network) {
5515                         IPW_DEBUG_MERGE("No better ADHOC in this network to "
5516                                         "merge to.\n");
5517                         return;
5518                 }
5519
5520                 mutex_lock(&priv->mutex);
5521                 if ((priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5522                         IPW_DEBUG_MERGE("remove network %s\n",
5523                                         escape_essid(priv->essid,
5524                                                      priv->essid_len));
5525                         ipw_remove_current_network(priv);
5526                 }
5527
5528                 ipw_disassociate(priv);
5529                 priv->assoc_network = match.network;
5530                 mutex_unlock(&priv->mutex);
5531                 return;
5532         }
5533 }
5534
5535 static int ipw_best_network(struct ipw_priv *priv,
5536                             struct ipw_network_match *match,
5537                             struct ieee80211_network *network, int roaming)
5538 {
5539         struct ipw_supported_rates rates;
5540
5541         /* Verify that this network's capability is compatible with the
5542          * current mode (AdHoc or Infrastructure) */
5543         if ((priv->ieee->iw_mode == IW_MODE_INFRA &&
5544              !(network->capability & WLAN_CAPABILITY_ESS)) ||
5545             (priv->ieee->iw_mode == IW_MODE_ADHOC &&
5546              !(network->capability & WLAN_CAPABILITY_IBSS))) {
5547                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded due to "
5548                                 "capability mismatch.\n",
5549                                 escape_essid(network->ssid, network->ssid_len),
5550                                 MAC_ARG(network->bssid));
5551                 return 0;
5552         }
5553
5554         /* If we do not have an ESSID for this AP, we can not associate with
5555          * it */
5556         if (network->flags & NETWORK_EMPTY_ESSID) {
5557                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5558                                 "because of hidden ESSID.\n",
5559                                 escape_essid(network->ssid, network->ssid_len),
5560                                 MAC_ARG(network->bssid));
5561                 return 0;
5562         }
5563
5564         if (unlikely(roaming)) {
5565                 /* If we are roaming, then ensure check if this is a valid
5566                  * network to try and roam to */
5567                 if ((network->ssid_len != match->network->ssid_len) ||
5568                     memcmp(network->ssid, match->network->ssid,
5569                            network->ssid_len)) {
5570                         IPW_DEBUG_ASSOC("Netowrk '%s (" MAC_FMT ")' excluded "
5571                                         "because of non-network ESSID.\n",
5572                                         escape_essid(network->ssid,
5573                                                      network->ssid_len),
5574                                         MAC_ARG(network->bssid));
5575                         return 0;
5576                 }
5577         } else {
5578                 /* If an ESSID has been configured then compare the broadcast
5579                  * ESSID to ours */
5580                 if ((priv->config & CFG_STATIC_ESSID) &&
5581                     ((network->ssid_len != priv->essid_len) ||
5582                      memcmp(network->ssid, priv->essid,
5583                             min(network->ssid_len, priv->essid_len)))) {
5584                         char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5585                         strncpy(escaped,
5586                                 escape_essid(network->ssid, network->ssid_len),
5587                                 sizeof(escaped));
5588                         IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5589                                         "because of ESSID mismatch: '%s'.\n",
5590                                         escaped, MAC_ARG(network->bssid),
5591                                         escape_essid(priv->essid,
5592                                                      priv->essid_len));
5593                         return 0;
5594                 }
5595         }
5596
5597         /* If the old network rate is better than this one, don't bother
5598          * testing everything else. */
5599         if (match->network && match->network->stats.rssi > network->stats.rssi) {
5600                 char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5601                 strncpy(escaped,
5602                         escape_essid(network->ssid, network->ssid_len),
5603                         sizeof(escaped));
5604                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded because "
5605                                 "'%s (" MAC_FMT ")' has a stronger signal.\n",
5606                                 escaped, MAC_ARG(network->bssid),
5607                                 escape_essid(match->network->ssid,
5608                                              match->network->ssid_len),
5609                                 MAC_ARG(match->network->bssid));
5610                 return 0;
5611         }
5612
5613         /* If this network has already had an association attempt within the
5614          * last 3 seconds, do not try and associate again... */
5615         if (network->last_associate &&
5616             time_after(network->last_associate + (HZ * 3UL), jiffies)) {
5617                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5618                                 "because of storming (%ums since last "
5619                                 "assoc attempt).\n",
5620                                 escape_essid(network->ssid, network->ssid_len),
5621                                 MAC_ARG(network->bssid),
5622                                 jiffies_to_msecs(jiffies -
5623                                                  network->last_associate));
5624                 return 0;
5625         }
5626
5627         /* Now go through and see if the requested network is valid... */
5628         if (priv->ieee->scan_age != 0 &&
5629             time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5630                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5631                                 "because of age: %ums.\n",
5632                                 escape_essid(network->ssid, network->ssid_len),
5633                                 MAC_ARG(network->bssid),
5634                                 jiffies_to_msecs(jiffies -
5635                                                  network->last_scanned));
5636                 return 0;
5637         }
5638
5639         if ((priv->config & CFG_STATIC_CHANNEL) &&
5640             (network->channel != priv->channel)) {
5641                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5642                                 "because of channel mismatch: %d != %d.\n",
5643                                 escape_essid(network->ssid, network->ssid_len),
5644                                 MAC_ARG(network->bssid),
5645                                 network->channel, priv->channel);
5646                 return 0;
5647         }
5648
5649         /* Verify privacy compatability */
5650         if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5651             ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5652                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5653                                 "because of privacy mismatch: %s != %s.\n",
5654                                 escape_essid(network->ssid, network->ssid_len),
5655                                 MAC_ARG(network->bssid),
5656                                 priv->capability & CAP_PRIVACY_ON ? "on" :
5657                                 "off",
5658                                 network->capability &
5659                                 WLAN_CAPABILITY_PRIVACY ? "on" : "off");
5660                 return 0;
5661         }
5662
5663         if ((priv->config & CFG_STATIC_BSSID) &&
5664             memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
5665                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5666                                 "because of BSSID mismatch: " MAC_FMT ".\n",
5667                                 escape_essid(network->ssid, network->ssid_len),
5668                                 MAC_ARG(network->bssid), MAC_ARG(priv->bssid));
5669                 return 0;
5670         }
5671
5672         /* Filter out any incompatible freq / mode combinations */
5673         if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) {
5674                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5675                                 "because of invalid frequency/mode "
5676                                 "combination.\n",
5677                                 escape_essid(network->ssid, network->ssid_len),
5678                                 MAC_ARG(network->bssid));
5679                 return 0;
5680         }
5681
5682         /* Filter out invalid channel in current GEO */
5683         if (!ieee80211_is_valid_channel(priv->ieee, network->channel)) {
5684                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5685                                 "because of invalid channel in current GEO\n",
5686                                 escape_essid(network->ssid, network->ssid_len),
5687                                 MAC_ARG(network->bssid));
5688                 return 0;
5689         }
5690
5691         /* Ensure that the rates supported by the driver are compatible with
5692          * this AP, including verification of basic rates (mandatory) */
5693         if (!ipw_compatible_rates(priv, network, &rates)) {
5694                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5695                                 "because configured rate mask excludes "
5696                                 "AP mandatory rate.\n",
5697                                 escape_essid(network->ssid, network->ssid_len),
5698                                 MAC_ARG(network->bssid));
5699                 return 0;
5700         }
5701
5702         if (rates.num_rates == 0) {
5703                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5704                                 "because of no compatible rates.\n",
5705                                 escape_essid(network->ssid, network->ssid_len),
5706                                 MAC_ARG(network->bssid));
5707                 return 0;
5708         }
5709
5710         /* TODO: Perform any further minimal comparititive tests.  We do not
5711          * want to put too much policy logic here; intelligent scan selection
5712          * should occur within a generic IEEE 802.11 user space tool.  */
5713
5714         /* Set up 'new' AP to this network */
5715         ipw_copy_rates(&match->rates, &rates);
5716         match->network = network;
5717
5718         IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' is a viable match.\n",
5719                         escape_essid(network->ssid, network->ssid_len),
5720                         MAC_ARG(network->bssid));
5721
5722         return 1;
5723 }
5724
5725 static void ipw_adhoc_create(struct ipw_priv *priv,
5726                              struct ieee80211_network *network)
5727 {
5728         const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
5729         int i;
5730
5731         /*
5732          * For the purposes of scanning, we can set our wireless mode
5733          * to trigger scans across combinations of bands, but when it
5734          * comes to creating a new ad-hoc network, we have tell the FW
5735          * exactly which band to use.
5736          *
5737          * We also have the possibility of an invalid channel for the
5738          * chossen band.  Attempting to create a new ad-hoc network
5739          * with an invalid channel for wireless mode will trigger a
5740          * FW fatal error.
5741          *
5742          */
5743         switch (ieee80211_is_valid_channel(priv->ieee, priv->channel)) {
5744         case IEEE80211_52GHZ_BAND:
5745                 network->mode = IEEE_A;
5746                 i = ieee80211_channel_to_index(priv->ieee, priv->channel);
5747                 BUG_ON(i == -1);
5748                 if (geo->a[i].flags & IEEE80211_CH_PASSIVE_ONLY) {
5749                         IPW_WARNING("Overriding invalid channel\n");
5750                         priv->channel = geo->a[0].channel;
5751                 }
5752                 break;
5753
5754         case IEEE80211_24GHZ_BAND:
5755                 if (priv->ieee->mode & IEEE_G)
5756                         network->mode = IEEE_G;
5757                 else
5758                         network->mode = IEEE_B;
5759                 i = ieee80211_channel_to_index(priv->ieee, priv->channel);
5760                 BUG_ON(i == -1);
5761                 if (geo->bg[i].flags & IEEE80211_CH_PASSIVE_ONLY) {
5762                         IPW_WARNING("Overriding invalid channel\n");
5763                         priv->channel = geo->bg[0].channel;
5764                 }
5765                 break;
5766
5767         default:
5768                 IPW_WARNING("Overriding invalid channel\n");
5769                 if (priv->ieee->mode & IEEE_A) {
5770                         network->mode = IEEE_A;
5771                         priv->channel = geo->a[0].channel;
5772                 } else if (priv->ieee->mode & IEEE_G) {
5773                         network->mode = IEEE_G;
5774                         priv->channel = geo->bg[0].channel;
5775                 } else {
5776                         network->mode = IEEE_B;
5777                         priv->channel = geo->bg[0].channel;
5778                 }
5779                 break;
5780         }
5781
5782         network->channel = priv->channel;
5783         priv->config |= CFG_ADHOC_PERSIST;
5784         ipw_create_bssid(priv, network->bssid);
5785         network->ssid_len = priv->essid_len;
5786         memcpy(network->ssid, priv->essid, priv->essid_len);
5787         memset(&network->stats, 0, sizeof(network->stats));
5788         network->capability = WLAN_CAPABILITY_IBSS;
5789         if (!(priv->config & CFG_PREAMBLE_LONG))
5790                 network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE;
5791         if (priv->capability & CAP_PRIVACY_ON)
5792                 network->capability |= WLAN_CAPABILITY_PRIVACY;
5793         network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH);
5794         memcpy(network->rates, priv->rates.supported_rates, network->rates_len);
5795         network->rates_ex_len = priv->rates.num_rates - network->rates_len;
5796         memcpy(network->rates_ex,
5797                &priv->rates.supported_rates[network->rates_len],
5798                network->rates_ex_len);
5799         network->last_scanned = 0;
5800         network->flags = 0;
5801         network->last_associate = 0;
5802         network->time_stamp[0] = 0;
5803         network->time_stamp[1] = 0;
5804         network->beacon_interval = 100; /* Default */
5805         network->listen_interval = 10;  /* Default */
5806         network->atim_window = 0;       /* Default */
5807         network->wpa_ie_len = 0;
5808         network->rsn_ie_len = 0;
5809 }
5810
5811 static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index)
5812 {
5813         struct ipw_tgi_tx_key key;
5814
5815         if (!(priv->ieee->sec.flags & (1 << index)))
5816                 return;
5817
5818         key.key_id = index;
5819         memcpy(key.key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH);
5820         key.security_type = type;
5821         key.station_index = 0;  /* always 0 for BSS */
5822         key.flags = 0;
5823         /* 0 for new key; previous value of counter (after fatal error) */
5824         key.tx_counter[0] = cpu_to_le32(0);
5825         key.tx_counter[1] = cpu_to_le32(0);
5826
5827         ipw_send_cmd_pdu(priv, IPW_CMD_TGI_TX_KEY, sizeof(key), &key);
5828 }
5829
5830 static void ipw_send_wep_keys(struct ipw_priv *priv, int type)
5831 {
5832         struct ipw_wep_key key;
5833         int i;
5834
5835         key.cmd_id = DINO_CMD_WEP_KEY;
5836         key.seq_num = 0;
5837
5838         /* Note: AES keys cannot be set for multiple times.
5839          * Only set it at the first time. */
5840         for (i = 0; i < 4; i++) {
5841                 key.key_index = i | type;
5842                 if (!(priv->ieee->sec.flags & (1 << i))) {
5843                         key.key_size = 0;
5844                         continue;
5845                 }
5846
5847                 key.key_size = priv->ieee->sec.key_sizes[i];
5848                 memcpy(key.key, priv->ieee->sec.keys[i], key.key_size);
5849
5850                 ipw_send_cmd_pdu(priv, IPW_CMD_WEP_KEY, sizeof(key), &key);
5851         }
5852 }
5853
5854 static void ipw_set_hw_decrypt_unicast(struct ipw_priv *priv, int level)
5855 {
5856         if (priv->ieee->host_encrypt)
5857                 return;
5858
5859         switch (level) {
5860         case SEC_LEVEL_3:
5861                 priv->sys_config.disable_unicast_decryption = 0;
5862                 priv->ieee->host_decrypt = 0;
5863                 break;
5864         case SEC_LEVEL_2:
5865                 priv->sys_config.disable_unicast_decryption = 1;
5866                 priv->ieee->host_decrypt = 1;
5867                 break;
5868         case SEC_LEVEL_1:
5869                 priv->sys_config.disable_unicast_decryption = 0;
5870                 priv->ieee->host_decrypt = 0;
5871                 break;
5872         case SEC_LEVEL_0:
5873                 priv->sys_config.disable_unicast_decryption = 1;
5874                 break;
5875         default:
5876                 break;
5877         }
5878 }
5879
5880 static void ipw_set_hw_decrypt_multicast(struct ipw_priv *priv, int level)
5881 {
5882         if (priv->ieee->host_encrypt)
5883                 return;
5884
5885         switch (level) {
5886         case SEC_LEVEL_3:
5887                 priv->sys_config.disable_multicast_decryption = 0;
5888                 break;
5889         case SEC_LEVEL_2:
5890                 priv->sys_config.disable_multicast_decryption = 1;
5891                 break;
5892         case SEC_LEVEL_1:
5893                 priv->sys_config.disable_multicast_decryption = 0;
5894                 break;
5895         case SEC_LEVEL_0:
5896                 priv->sys_config.disable_multicast_decryption = 1;
5897                 break;
5898         default:
5899                 break;
5900         }
5901 }
5902
5903 static void ipw_set_hwcrypto_keys(struct ipw_priv *priv)
5904 {
5905         switch (priv->ieee->sec.level) {
5906         case SEC_LEVEL_3:
5907                 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
5908                         ipw_send_tgi_tx_key(priv,
5909                                             DCT_FLAG_EXT_SECURITY_CCM,
5910                                             priv->ieee->sec.active_key);
5911
5912                 if (!priv->ieee->host_mc_decrypt)
5913                         ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM);
5914                 break;
5915         case SEC_LEVEL_2:
5916                 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
5917                         ipw_send_tgi_tx_key(priv,
5918                                             DCT_FLAG_EXT_SECURITY_TKIP,
5919                                             priv->ieee->sec.active_key);
5920                 break;
5921         case SEC_LEVEL_1:
5922                 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
5923                 ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level);
5924                 ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level);
5925                 break;
5926         case SEC_LEVEL_0:
5927         default:
5928                 break;
5929         }
5930 }
5931
5932 static void ipw_adhoc_check(void *data)
5933 {
5934         struct ipw_priv *priv = data;
5935
5936         if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold &&
5937             !(priv->config & CFG_ADHOC_PERSIST)) {
5938                 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
5939                           IPW_DL_STATE | IPW_DL_ASSOC,
5940                           "Missed beacon: %d - disassociate\n",
5941                           priv->missed_adhoc_beacons);
5942                 ipw_remove_current_network(priv);
5943                 ipw_disassociate(priv);
5944                 return;
5945         }
5946
5947         queue_delayed_work(priv->workqueue, &priv->adhoc_check,
5948                            priv->assoc_request.beacon_interval);
5949 }
5950
5951 static void ipw_bg_adhoc_check(void *data)
5952 {
5953         struct ipw_priv *priv = data;
5954         mutex_lock(&priv->mutex);
5955         ipw_adhoc_check(data);
5956         mutex_unlock(&priv->mutex);
5957 }
5958
5959 static void ipw_debug_config(struct ipw_priv *priv)
5960 {
5961         IPW_DEBUG_INFO("Scan completed, no valid APs matched "
5962                        "[CFG 0x%08X]\n", priv->config);
5963         if (priv->config & CFG_STATIC_CHANNEL)
5964                 IPW_DEBUG_INFO("Channel locked to %d\n", priv->channel);
5965         else
5966                 IPW_DEBUG_INFO("Channel unlocked.\n");
5967         if (priv->config & CFG_STATIC_ESSID)
5968                 IPW_DEBUG_INFO("ESSID locked to '%s'\n",
5969                                escape_essid(priv->essid, priv->essid_len));
5970         else
5971                 IPW_DEBUG_INFO("ESSID unlocked.\n");
5972         if (priv->config & CFG_STATIC_BSSID)
5973                 IPW_DEBUG_INFO("BSSID locked to " MAC_FMT "\n",
5974                                MAC_ARG(priv->bssid));
5975         else
5976                 IPW_DEBUG_INFO("BSSID unlocked.\n");
5977         if (priv->capability & CAP_PRIVACY_ON)
5978                 IPW_DEBUG_INFO("PRIVACY on\n");
5979         else
5980                 IPW_DEBUG_INFO("PRIVACY off\n");
5981         IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask);
5982 }
5983
5984 static void ipw_set_fixed_rate(struct ipw_priv *priv, int mode)
5985 {
5986         /* TODO: Verify that this works... */
5987         struct ipw_fixed_rate fr = {
5988                 .tx_rates = priv->rates_mask
5989         };
5990         u32 reg;
5991         u16 mask = 0;
5992
5993         /* Identify 'current FW band' and match it with the fixed
5994          * Tx rates */
5995
5996         switch (priv->ieee->freq_band) {
5997         case IEEE80211_52GHZ_BAND:      /* A only */
5998                 /* IEEE_A */
5999                 if (priv->rates_mask & ~IEEE80211_OFDM_RATES_MASK) {
6000                         /* Invalid fixed rate mask */
6001                         IPW_DEBUG_WX
6002                             ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6003                         fr.tx_rates = 0;
6004                         break;
6005                 }
6006
6007                 fr.tx_rates >>= IEEE80211_OFDM_SHIFT_MASK_A;
6008                 break;
6009
6010         default:                /* 2.4Ghz or Mixed */
6011                 /* IEEE_B */
6012                 if (mode == IEEE_B) {
6013                         if (fr.tx_rates & ~IEEE80211_CCK_RATES_MASK) {
6014                                 /* Invalid fixed rate mask */
6015                                 IPW_DEBUG_WX
6016                                     ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6017                                 fr.tx_rates = 0;
6018                         }
6019                         break;
6020                 }
6021
6022                 /* IEEE_G */
6023                 if (fr.tx_rates & ~(IEEE80211_CCK_RATES_MASK |
6024                                     IEEE80211_OFDM_RATES_MASK)) {
6025                         /* Invalid fixed rate mask */
6026                         IPW_DEBUG_WX
6027                             ("invalid fixed rate mask in ipw_set_fixed_rate\n");
6028                         fr.tx_rates = 0;
6029                         break;
6030                 }
6031
6032                 if (IEEE80211_OFDM_RATE_6MB_MASK & fr.tx_rates) {
6033                         mask |= (IEEE80211_OFDM_RATE_6MB_MASK >> 1);
6034                         fr.tx_rates &= ~IEEE80211_OFDM_RATE_6MB_MASK;
6035                 }
6036
6037                 if (IEEE80211_OFDM_RATE_9MB_MASK & fr.tx_rates) {
6038                         mask |= (IEEE80211_OFDM_RATE_9MB_MASK >> 1);
6039                         fr.tx_rates &= ~IEEE80211_OFDM_RATE_9MB_MASK;
6040                 }
6041
6042                 if (IEEE80211_OFDM_RATE_12MB_MASK & fr.tx_rates) {
6043                         mask |= (IEEE80211_OFDM_RATE_12MB_MASK >> 1);
6044                         fr.tx_rates &= ~IEEE80211_OFDM_RATE_12MB_MASK;
6045                 }
6046
6047                 fr.tx_rates |= mask;
6048                 break;
6049         }
6050
6051         reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE);
6052         ipw_write_reg32(priv, reg, *(u32 *) & fr);
6053 }
6054
6055 static void ipw_abort_scan(struct ipw_priv *priv)
6056 {
6057         int err;
6058
6059         if (priv->status & STATUS_SCAN_ABORTING) {
6060                 IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n");
6061                 return;
6062         }
6063         priv->status |= STATUS_SCAN_ABORTING;
6064
6065         err = ipw_send_scan_abort(priv);
6066         if (err)
6067                 IPW_DEBUG_HC("Request to abort scan failed.\n");
6068 }
6069
6070 static void ipw_add_scan_channels(struct ipw_priv *priv,
6071                                   struct ipw_scan_request_ext *scan,
6072                                   int scan_type)
6073 {
6074         int channel_index = 0;
6075         const struct ieee80211_geo *geo;
6076         int i;
6077
6078         geo = ieee80211_get_geo(priv->ieee);
6079
6080         if (priv->ieee->freq_band & IEEE80211_52GHZ_BAND) {
6081                 int start = channel_index;
6082                 for (i = 0; i < geo->a_channels; i++) {
6083                         if ((priv->status & STATUS_ASSOCIATED) &&
6084                             geo->a[i].channel == priv->channel)
6085                                 continue;
6086                         channel_index++;
6087                         scan->channels_list[channel_index] = geo->a[i].channel;
6088                         ipw_set_scan_type(scan, channel_index,
6089                                           geo->a[i].
6090                                           flags & IEEE80211_CH_PASSIVE_ONLY ?
6091                                           IPW_SCAN_PASSIVE_FULL_DWELL_SCAN :
6092                                           scan_type);
6093                 }
6094
6095                 if (start != channel_index) {
6096                         scan->channels_list[start] = (u8) (IPW_A_MODE << 6) |
6097                             (channel_index - start);
6098                         channel_index++;
6099                 }
6100         }
6101
6102         if (priv->ieee->freq_band & IEEE80211_24GHZ_BAND) {
6103                 int start = channel_index;
6104                 if (priv->config & CFG_SPEED_SCAN) {
6105                         int index;
6106                         u8 channels[IEEE80211_24GHZ_CHANNELS] = {
6107                                 /* nop out the list */
6108                                 [0] = 0
6109                         };
6110
6111                         u8 channel;
6112                         while (channel_index < IPW_SCAN_CHANNELS) {
6113                                 channel =
6114                                     priv->speed_scan[priv->speed_scan_pos];
6115                                 if (channel == 0) {
6116                                         priv->speed_scan_pos = 0;
6117                                         channel = priv->speed_scan[0];
6118                                 }
6119                                 if ((priv->status & STATUS_ASSOCIATED) &&
6120                                     channel == priv->channel) {
6121                                         priv->speed_scan_pos++;
6122                                         continue;
6123                                 }
6124
6125                                 /* If this channel has already been
6126                                  * added in scan, break from loop
6127                                  * and this will be the first channel
6128                                  * in the next scan.
6129                                  */
6130                                 if (channels[channel - 1] != 0)
6131                                         break;
6132
6133                                 channels[channel - 1] = 1;
6134                                 priv->speed_scan_pos++;
6135                                 channel_index++;
6136                                 scan->channels_list[channel_index] = channel;
6137                                 index =
6138                                     ieee80211_channel_to_index(priv->ieee, channel);
6139                                 ipw_set_scan_type(scan, channel_index,
6140                                                   geo->bg[index].
6141                                                   flags &
6142                                                   IEEE80211_CH_PASSIVE_ONLY ?
6143                                                   IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6144                                                   : scan_type);
6145                         }
6146                 } else {
6147                         for (i = 0; i < geo->bg_channels; i++) {
6148                                 if ((priv->status & STATUS_ASSOCIATED) &&
6149                                     geo->bg[i].channel == priv->channel)
6150                                         continue;
6151                                 channel_index++;
6152                                 scan->channels_list[channel_index] =
6153                                     geo->bg[i].channel;
6154                                 ipw_set_scan_type(scan, channel_index,
6155                                                   geo->bg[i].
6156                                                   flags &
6157                                                   IEEE80211_CH_PASSIVE_ONLY ?
6158                                                   IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6159                                                   : scan_type);
6160                         }
6161                 }
6162
6163                 if (start != channel_index) {
6164                         scan->channels_list[start] = (u8) (IPW_B_MODE << 6) |
6165                             (channel_index - start);
6166                 }
6167         }
6168 }
6169
6170 static int ipw_request_scan_helper(struct ipw_priv *priv, int type)
6171 {
6172         struct ipw_scan_request_ext scan;
6173         int err = 0, scan_type;
6174
6175         if (!(priv->status & STATUS_INIT) ||
6176             (priv->status & STATUS_EXIT_PENDING))
6177                 return 0;
6178
6179         mutex_lock(&priv->mutex);
6180
6181         if (priv->status & STATUS_SCANNING) {
6182                 IPW_DEBUG_HC("Concurrent scan requested.  Ignoring.\n");
6183                 priv->status |= STATUS_SCAN_PENDING;
6184                 goto done;
6185         }
6186
6187         if (!(priv->status & STATUS_SCAN_FORCED) &&
6188             priv->status & STATUS_SCAN_ABORTING) {
6189                 IPW_DEBUG_HC("Scan request while abort pending.  Queuing.\n");
6190                 priv->status |= STATUS_SCAN_PENDING;
6191                 goto done;
6192         }
6193
6194         if (priv->status & STATUS_RF_KILL_MASK) {
6195                 IPW_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6196                 priv->status |= STATUS_SCAN_PENDING;
6197                 goto done;
6198         }
6199
6200         memset(&scan, 0, sizeof(scan));
6201         scan.full_scan_index = cpu_to_le32(ieee80211_get_scans(priv->ieee));
6202
6203         if (type == IW_SCAN_TYPE_PASSIVE) {
6204                 IPW_DEBUG_WX("use passive scanning\n");
6205                 scan_type = IPW_SCAN_PASSIVE_FULL_DWELL_SCAN;
6206                 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6207                         cpu_to_le16(120);
6208                 ipw_add_scan_channels(priv, &scan, scan_type);
6209                 goto send_request;
6210         }
6211
6212         /* Use active scan by default. */
6213         if (priv->config & CFG_SPEED_SCAN)
6214                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6215                         cpu_to_le16(30);
6216         else
6217                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6218                         cpu_to_le16(20);
6219
6220         scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] =
6221                 cpu_to_le16(20);
6222
6223         scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = cpu_to_le16(120);
6224
6225 #ifdef CONFIG_IPW2200_MONITOR
6226         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
6227                 u8 channel;
6228                 u8 band = 0;
6229
6230                 switch (ieee80211_is_valid_channel(priv->ieee, priv->channel)) {
6231                 case IEEE80211_52GHZ_BAND:
6232                         band = (u8) (IPW_A_MODE << 6) | 1;
6233                         channel = priv->channel;
6234                         break;
6235
6236                 case IEEE80211_24GHZ_BAND:
6237                         band = (u8) (IPW_B_MODE << 6) | 1;
6238                         channel = priv->channel;
6239                         break;
6240
6241                 default:
6242                         band = (u8) (IPW_B_MODE << 6) | 1;
6243                         channel = 9;
6244                         break;
6245                 }
6246
6247                 scan.channels_list[0] = band;
6248                 scan.channels_list[1] = channel;
6249                 ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN);
6250
6251                 /* NOTE:  The card will sit on this channel for this time
6252                  * period.  Scan aborts are timing sensitive and frequently
6253                  * result in firmware restarts.  As such, it is best to
6254                  * set a small dwell_time here and just keep re-issuing
6255                  * scans.  Otherwise fast channel hopping will not actually
6256                  * hop channels.
6257                  *
6258                  * TODO: Move SPEED SCAN support to all modes and bands */
6259                 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6260                         cpu_to_le16(2000);
6261         } else {
6262 #endif                          /* CONFIG_IPW2200_MONITOR */
6263                 /* If we are roaming, then make this a directed scan for the
6264                  * current network.  Otherwise, ensure that every other scan
6265                  * is a fast channel hop scan */
6266                 if ((priv->status & STATUS_ROAMING)
6267                     || (!(priv->status & STATUS_ASSOCIATED)
6268                         && (priv->config & CFG_STATIC_ESSID)
6269                         && (le32_to_cpu(scan.full_scan_index) % 2))) {
6270                         err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
6271                         if (err) {
6272                                 IPW_DEBUG_HC("Attempt to send SSID command "
6273                                              "failed.\n");
6274                                 goto done;
6275                         }
6276
6277                         scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
6278                 } else
6279                         scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN;
6280
6281                 ipw_add_scan_channels(priv, &scan, scan_type);
6282 #ifdef CONFIG_IPW2200_MONITOR
6283         }
6284 #endif
6285
6286 send_request:
6287         err = ipw_send_scan_request_ext(priv, &scan);
6288         if (err) {
6289                 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err);
6290                 goto done;
6291         }
6292
6293         priv->status |= STATUS_SCANNING;
6294         priv->status &= ~STATUS_SCAN_PENDING;
6295         queue_delayed_work(priv->workqueue, &priv->scan_check,
6296                            IPW_SCAN_CHECK_WATCHDOG);
6297 done:
6298         mutex_unlock(&priv->mutex);
6299         return err;
6300 }
6301
6302 static int ipw_request_passive_scan(struct ipw_priv *priv) {
6303         return ipw_request_scan_helper(priv, IW_SCAN_TYPE_PASSIVE);
6304 }
6305
6306 static int ipw_request_scan(struct ipw_priv *priv) {
6307         return ipw_request_scan_helper(priv, IW_SCAN_TYPE_ACTIVE);
6308 }
6309
6310 static void ipw_bg_abort_scan(void *data)
6311 {
6312         struct ipw_priv *priv = data;
6313         mutex_lock(&priv->mutex);
6314         ipw_abort_scan(data);
6315         mutex_unlock(&priv->mutex);
6316 }
6317
6318 static int ipw_wpa_enable(struct ipw_priv *priv, int value)
6319 {
6320         /* This is called when wpa_supplicant loads and closes the driver
6321          * interface. */
6322         priv->ieee->wpa_enabled = value;
6323         return 0;
6324 }
6325
6326 static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value)
6327 {
6328         struct ieee80211_device *ieee = priv->ieee;
6329         struct ieee80211_security sec = {
6330                 .flags = SEC_AUTH_MODE,
6331         };
6332         int ret = 0;
6333
6334         if (value & IW_AUTH_ALG_SHARED_KEY) {
6335                 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
6336                 ieee->open_wep = 0;
6337         } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
6338                 sec.auth_mode = WLAN_AUTH_OPEN;
6339                 ieee->open_wep = 1;
6340         } else if (value & IW_AUTH_ALG_LEAP) {
6341                 sec.auth_mode = WLAN_AUTH_LEAP;
6342                 ieee->open_wep = 1;
6343         } else
6344                 return -EINVAL;
6345
6346         if (ieee->set_security)
6347                 ieee->set_security(ieee->dev, &sec);
6348         else
6349                 ret = -EOPNOTSUPP;
6350
6351         return ret;
6352 }
6353
6354 static void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie,
6355                                 int wpa_ie_len)
6356 {
6357         /* make sure WPA is enabled */
6358         ipw_wpa_enable(priv, 1);
6359 }
6360
6361 static int ipw_set_rsn_capa(struct ipw_priv *priv,
6362                             char *capabilities, int length)
6363 {
6364         IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n");
6365
6366         return ipw_send_cmd_pdu(priv, IPW_CMD_RSN_CAPABILITIES, length,
6367                                 capabilities);
6368 }
6369
6370 /*
6371  * WE-18 support
6372  */
6373
6374 /* SIOCSIWGENIE */
6375 static int ipw_wx_set_genie(struct net_device *dev,
6376                             struct iw_request_info *info,
6377                             union iwreq_data *wrqu, char *extra)
6378 {
6379         struct ipw_priv *priv = ieee80211_priv(dev);
6380         struct ieee80211_device *ieee = priv->ieee;
6381         u8 *buf;
6382         int err = 0;
6383
6384         if (wrqu->data.length > MAX_WPA_IE_LEN ||
6385             (wrqu->data.length && extra == NULL))
6386                 return -EINVAL;
6387
6388         if (wrqu->data.length) {
6389                 buf = kmalloc(wrqu->data.length, GFP_KERNEL);
6390                 if (buf == NULL) {
6391                         err = -ENOMEM;
6392                         goto out;
6393                 }
6394
6395                 memcpy(buf, extra, wrqu->data.length);
6396                 kfree(ieee->wpa_ie);
6397                 ieee->wpa_ie = buf;
6398                 ieee->wpa_ie_len = wrqu->data.length;
6399         } else {
6400                 kfree(ieee->wpa_ie);
6401                 ieee->wpa_ie = NULL;
6402                 ieee->wpa_ie_len = 0;
6403         }
6404
6405         ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
6406       out:
6407         return err;
6408 }
6409
6410 /* SIOCGIWGENIE */
6411 static int ipw_wx_get_genie(struct net_device *dev,
6412                             struct iw_request_info *info,
6413                             union iwreq_data *wrqu, char *extra)
6414 {
6415         struct ipw_priv *priv = ieee80211_priv(dev);
6416         struct ieee80211_device *ieee = priv->ieee;
6417         int err = 0;
6418
6419         if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
6420                 wrqu->data.length = 0;
6421                 goto out;
6422         }
6423
6424         if (wrqu->data.length < ieee->wpa_ie_len) {
6425                 err = -E2BIG;
6426                 goto out;
6427         }
6428
6429         wrqu->data.length = ieee->wpa_ie_len;
6430         memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
6431
6432       out:
6433         return err;
6434 }
6435
6436 static int wext_cipher2level(int cipher)
6437 {
6438         switch (cipher) {
6439         case IW_AUTH_CIPHER_NONE:
6440                 return SEC_LEVEL_0;
6441         case IW_AUTH_CIPHER_WEP40:
6442         case IW_AUTH_CIPHER_WEP104:
6443                 return SEC_LEVEL_1;
6444         case IW_AUTH_CIPHER_TKIP:
6445                 return SEC_LEVEL_2;
6446         case IW_AUTH_CIPHER_CCMP:
6447                 return SEC_LEVEL_3;
6448         default:
6449                 return -1;
6450         }
6451 }
6452
6453 /* SIOCSIWAUTH */
6454 static int ipw_wx_set_auth(struct net_device *dev,
6455                            struct iw_request_info *info,
6456                            union iwreq_data *wrqu, char *extra)
6457 {
6458         struct ipw_priv *priv = ieee80211_priv(dev);
6459         struct ieee80211_device *ieee = priv->ieee;
6460         struct iw_param *param = &wrqu->param;
6461         struct ieee80211_crypt_data *crypt;
6462         unsigned long flags;
6463         int ret = 0;
6464
6465         switch (param->flags & IW_AUTH_INDEX) {
6466         case IW_AUTH_WPA_VERSION:
6467                 break;
6468         case IW_AUTH_CIPHER_PAIRWISE:
6469                 ipw_set_hw_decrypt_unicast(priv,
6470                                            wext_cipher2level(param->value));
6471                 break;
6472         case IW_AUTH_CIPHER_GROUP:
6473                 ipw_set_hw_decrypt_multicast(priv,
6474                                              wext_cipher2level(param->value));
6475                 break;
6476         case IW_AUTH_KEY_MGMT:
6477                 /*
6478                  * ipw2200 does not use these parameters
6479                  */
6480                 break;
6481
6482         case IW_AUTH_TKIP_COUNTERMEASURES:
6483                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
6484                 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
6485                         break;
6486
6487                 flags = crypt->ops->get_flags(crypt->priv);
6488
6489                 if (param->value)
6490                         flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6491                 else
6492                         flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6493
6494                 crypt->ops->set_flags(flags, crypt->priv);
6495
6496                 break;
6497
6498         case IW_AUTH_DROP_UNENCRYPTED:{
6499                         /* HACK:
6500                          *
6501                          * wpa_supplicant calls set_wpa_enabled when the driver
6502                          * is loaded and unloaded, regardless of if WPA is being
6503                          * used.  No other calls are made which can be used to
6504                          * determine if encryption will be used or not prior to
6505                          * association being expected.  If encryption is not being
6506                          * used, drop_unencrypted is set to false, else true -- we
6507                          * can use this to determine if the CAP_PRIVACY_ON bit should
6508                          * be set.
6509                          */
6510                         struct ieee80211_security sec = {
6511                                 .flags = SEC_ENABLED,
6512                                 .enabled = param->value,
6513                         };
6514                         priv->ieee->drop_unencrypted = param->value;
6515                         /* We only change SEC_LEVEL for open mode. Others
6516                          * are set by ipw_wpa_set_encryption.
6517                          */
6518                         if (!param->value) {
6519                                 sec.flags |= SEC_LEVEL;
6520                                 sec.level = SEC_LEVEL_0;
6521                         } else {
6522                                 sec.flags |= SEC_LEVEL;
6523                                 sec.level = SEC_LEVEL_1;
6524                         }
6525                         if (priv->ieee->set_security)
6526                                 priv->ieee->set_security(priv->ieee->dev, &sec);
6527                         break;
6528                 }
6529
6530         case IW_AUTH_80211_AUTH_ALG:
6531                 ret = ipw_wpa_set_auth_algs(priv, param->value);
6532                 break;
6533
6534         case IW_AUTH_WPA_ENABLED:
6535                 ret = ipw_wpa_enable(priv, param->value);
6536                 ipw_disassociate(priv);
6537                 break;
6538
6539         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6540                 ieee->ieee802_1x = param->value;
6541                 break;
6542
6543         case IW_AUTH_PRIVACY_INVOKED:
6544                 ieee->privacy_invoked = param->value;
6545                 break;
6546
6547         default:
6548                 return -EOPNOTSUPP;
6549         }
6550         return ret;
6551 }
6552
6553 /* SIOCGIWAUTH */
6554 static int ipw_wx_get_auth(struct net_device *dev,
6555                            struct iw_request_info *info,
6556                            union iwreq_data *wrqu, char *extra)
6557 {
6558         struct ipw_priv *priv = ieee80211_priv(dev);
6559         struct ieee80211_device *ieee = priv->ieee;
6560         struct ieee80211_crypt_data *crypt;
6561         struct iw_param *param = &wrqu->param;
6562         int ret = 0;
6563
6564         switch (param->flags & IW_AUTH_INDEX) {
6565         case IW_AUTH_WPA_VERSION:
6566         case IW_AUTH_CIPHER_PAIRWISE:
6567         case IW_AUTH_CIPHER_GROUP:
6568         case IW_AUTH_KEY_MGMT:
6569                 /*
6570                  * wpa_supplicant will control these internally
6571                  */
6572                 ret = -EOPNOTSUPP;
6573                 break;
6574
6575         case IW_AUTH_TKIP_COUNTERMEASURES:
6576                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
6577                 if (!crypt || !crypt->ops->get_flags)
6578                         break;
6579
6580                 param->value = (crypt->ops->get_flags(crypt->priv) &
6581                                 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
6582
6583                 break;
6584
6585         case IW_AUTH_DROP_UNENCRYPTED:
6586                 param->value = ieee->drop_unencrypted;
6587                 break;
6588
6589         case IW_AUTH_80211_AUTH_ALG:
6590                 param->value = ieee->sec.auth_mode;
6591                 break;
6592
6593         case IW_AUTH_WPA_ENABLED:
6594                 param->value = ieee->wpa_enabled;
6595                 break;
6596
6597         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6598                 param->value = ieee->ieee802_1x;
6599                 break;
6600
6601         case IW_AUTH_ROAMING_CONTROL:
6602         case IW_AUTH_PRIVACY_INVOKED:
6603                 param->value = ieee->privacy_invoked;
6604                 break;
6605
6606         default:
6607                 return -EOPNOTSUPP;
6608         }
6609         return 0;
6610 }
6611
6612 /* SIOCSIWENCODEEXT */
6613 static int ipw_wx_set_encodeext(struct net_device *dev,
6614                                 struct iw_request_info *info,
6615                                 union iwreq_data *wrqu, char *extra)
6616 {
6617         struct ipw_priv *priv = ieee80211_priv(dev);
6618         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6619
6620         if (hwcrypto) {
6621                 if (ext->alg == IW_ENCODE_ALG_TKIP) {
6622                         /* IPW HW can't build TKIP MIC,
6623                            host decryption still needed */
6624                         if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
6625                                 priv->ieee->host_mc_decrypt = 1;
6626                         else {
6627                                 priv->ieee->host_encrypt = 0;
6628                                 priv->ieee->host_encrypt_msdu = 1;
6629                                 priv->ieee->host_decrypt = 1;
6630                         }
6631                 } else {
6632                         priv->ieee->host_encrypt = 0;
6633                         priv->ieee->host_encrypt_msdu = 0;
6634                         priv->ieee->host_decrypt = 0;
6635                         priv->ieee->host_mc_decrypt = 0;
6636                 }
6637         }
6638
6639         return ieee80211_wx_set_encodeext(priv->ieee, info, wrqu, extra);
6640 }
6641
6642 /* SIOCGIWENCODEEXT */
6643 static int ipw_wx_get_encodeext(struct net_device *dev,
6644                                 struct iw_request_info *info,
6645                                 union iwreq_data *wrqu, char *extra)
6646 {
6647         struct ipw_priv *priv = ieee80211_priv(dev);
6648         return ieee80211_wx_get_encodeext(priv->ieee, info, wrqu, extra);
6649 }
6650
6651 /* SIOCSIWMLME */
6652 static int ipw_wx_set_mlme(struct net_device *dev,
6653                            struct iw_request_info *info,
6654                            union iwreq_data *wrqu, char *extra)
6655 {
6656         struct ipw_priv *priv = ieee80211_priv(dev);
6657         struct iw_mlme *mlme = (struct iw_mlme *)extra;
6658         u16 reason;
6659
6660         reason = cpu_to_le16(mlme->reason_code);
6661
6662         switch (mlme->cmd) {
6663         case IW_MLME_DEAUTH:
6664                 /* silently ignore */
6665                 break;
6666
6667         case IW_MLME_DISASSOC:
6668                 ipw_disassociate(priv);
6669                 break;
6670
6671         default:
6672                 return -EOPNOTSUPP;
6673         }
6674         return 0;
6675 }
6676
6677 #ifdef CONFIG_IPW2200_QOS
6678
6679 /* QoS */
6680 /*
6681 * get the modulation type of the current network or
6682 * the card current mode
6683 */
6684 static u8 ipw_qos_current_mode(struct ipw_priv * priv)
6685 {
6686         u8 mode = 0;
6687
6688         if (priv->status & STATUS_ASSOCIATED) {
6689                 unsigned long flags;
6690
6691                 spin_lock_irqsave(&priv->ieee->lock, flags);
6692                 mode = priv->assoc_network->mode;
6693                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6694         } else {
6695                 mode = priv->ieee->mode;
6696         }
6697         IPW_DEBUG_QOS("QoS network/card mode %d \n", mode);
6698         return mode;
6699 }
6700
6701 /*
6702 * Handle management frame beacon and probe response
6703 */
6704 static int ipw_qos_handle_probe_response(struct ipw_priv *priv,
6705                                          int active_network,
6706                                          struct ieee80211_network *network)
6707 {
6708         u32 size = sizeof(struct ieee80211_qos_parameters);
6709
6710         if (network->capability & WLAN_CAPABILITY_IBSS)
6711                 network->qos_data.active = network->qos_data.supported;
6712
6713         if (network->flags & NETWORK_HAS_QOS_MASK) {
6714                 if (active_network &&
6715                     (network->flags & NETWORK_HAS_QOS_PARAMETERS))
6716                         network->qos_data.active = network->qos_data.supported;
6717
6718                 if ((network->qos_data.active == 1) && (active_network == 1) &&
6719                     (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
6720                     (network->qos_data.old_param_count !=
6721                      network->qos_data.param_count)) {
6722                         network->qos_data.old_param_count =
6723                             network->qos_data.param_count;
6724                         schedule_work(&priv->qos_activate);
6725                         IPW_DEBUG_QOS("QoS parameters change call "
6726                                       "qos_activate\n");
6727                 }
6728         } else {
6729                 if ((priv->ieee->mode == IEEE_B) || (network->mode == IEEE_B))
6730                         memcpy(&network->qos_data.parameters,
6731                                &def_parameters_CCK, size);
6732                 else
6733                         memcpy(&network->qos_data.parameters,
6734                                &def_parameters_OFDM, size);
6735
6736                 if ((network->qos_data.active == 1) && (active_network == 1)) {
6737                         IPW_DEBUG_QOS("QoS was disabled call qos_activate \n");
6738                         schedule_work(&priv->qos_activate);
6739                 }
6740
6741                 network->qos_data.active = 0;
6742                 network->qos_data.supported = 0;
6743         }
6744         if ((priv->status & STATUS_ASSOCIATED) &&
6745             (priv->ieee->iw_mode == IW_MODE_ADHOC) && (active_network == 0)) {
6746                 if (memcmp(network->bssid, priv->bssid, ETH_ALEN))
6747                         if ((network->capability & WLAN_CAPABILITY_IBSS) &&
6748                             !(network->flags & NETWORK_EMPTY_ESSID))
6749                                 if ((network->ssid_len ==
6750                                      priv->assoc_network->ssid_len) &&
6751                                     !memcmp(network->ssid,
6752                                             priv->assoc_network->ssid,
6753                                             network->ssid_len)) {
6754                                         queue_work(priv->workqueue,
6755                                                    &priv->merge_networks);
6756                                 }
6757         }
6758
6759         return 0;
6760 }
6761
6762 /*
6763 * This function set up the firmware to support QoS. It sends
6764 * IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO
6765 */
6766 static int ipw_qos_activate(struct ipw_priv *priv,
6767                             struct ieee80211_qos_data *qos_network_data)
6768 {
6769         int err;
6770         struct ieee80211_qos_parameters qos_parameters[QOS_QOS_SETS];
6771         struct ieee80211_qos_parameters *active_one = NULL;
6772         u32 size = sizeof(struct ieee80211_qos_parameters);
6773         u32 burst_duration;
6774         int i;
6775         u8 type;
6776
6777         type = ipw_qos_current_mode(priv);
6778
6779         active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]);
6780         memcpy(active_one, priv->qos_data.def_qos_parm_CCK, size);
6781         active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]);
6782         memcpy(active_one, priv->qos_data.def_qos_parm_OFDM, size);
6783
6784         if (qos_network_data == NULL) {
6785                 if (type == IEEE_B) {
6786                         IPW_DEBUG_QOS("QoS activate network mode %d\n", type);
6787                         active_one = &def_parameters_CCK;
6788                 } else
6789                         active_one = &def_parameters_OFDM;
6790
6791                 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6792                 burst_duration = ipw_qos_get_burst_duration(priv);
6793                 for (i = 0; i < QOS_QUEUE_NUM; i++)
6794                         qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] =
6795                             (u16)burst_duration;
6796         } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6797                 if (type == IEEE_B) {
6798                         IPW_DEBUG_QOS("QoS activate IBSS nework mode %d\n",
6799                                       type);
6800                         if (priv->qos_data.qos_enable == 0)
6801                                 active_one = &def_parameters_CCK;
6802                         else
6803                                 active_one = priv->qos_data.def_qos_parm_CCK;
6804                 } else {
6805                         if (priv->qos_data.qos_enable == 0)
6806                                 active_one = &def_parameters_OFDM;
6807                         else
6808                                 active_one = priv->qos_data.def_qos_parm_OFDM;
6809                 }
6810                 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6811         } else {
6812                 unsigned long flags;
6813                 int active;
6814
6815                 spin_lock_irqsave(&priv->ieee->lock, flags);
6816                 active_one = &(qos_network_data->parameters);
6817                 qos_network_data->old_param_count =
6818                     qos_network_data->param_count;
6819                 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6820                 active = qos_network_data->supported;
6821                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6822
6823                 if (active == 0) {
6824                         burst_duration = ipw_qos_get_burst_duration(priv);
6825                         for (i = 0; i < QOS_QUEUE_NUM; i++)
6826                                 qos_parameters[QOS_PARAM_SET_ACTIVE].
6827                                     tx_op_limit[i] = (u16)burst_duration;
6828                 }
6829         }
6830
6831         IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n");
6832         for (i = 0; i < 3; i++) {
6833                 int j;
6834                 for (j = 0; j < QOS_QUEUE_NUM; j++) {
6835                         qos_parameters[i].cw_min[j] = cpu_to_le16(qos_parameters[i].cw_min[j]);
6836                         qos_parameters[i].cw_max[j] = cpu_to_le16(qos_parameters[i].cw_max[j]);
6837                         qos_parameters[i].tx_op_limit[j] = cpu_to_le16(qos_parameters[i].tx_op_limit[j]);
6838                 }
6839         }
6840
6841         err = ipw_send_qos_params_command(priv,
6842                                           (struct ieee80211_qos_parameters *)
6843                                           &(qos_parameters[0]));
6844         if (err)
6845                 IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n");
6846
6847         return err;
6848 }
6849
6850 /*
6851 * send IPW_CMD_WME_INFO to the firmware
6852 */
6853 static int ipw_qos_set_info_element(struct ipw_priv *priv)
6854 {
6855         int ret = 0;
6856         struct ieee80211_qos_information_element qos_info;
6857
6858         if (priv == NULL)
6859                 return -1;
6860
6861         qos_info.elementID = QOS_ELEMENT_ID;
6862         qos_info.length = sizeof(struct ieee80211_qos_information_element) - 2;
6863
6864         qos_info.version = QOS_VERSION_1;
6865         qos_info.ac_info = 0;
6866
6867         memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN);
6868         qos_info.qui_type = QOS_OUI_TYPE;
6869         qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE;
6870
6871         ret = ipw_send_qos_info_command(priv, &qos_info);
6872         if (ret != 0) {
6873                 IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n");
6874         }
6875         return ret;
6876 }
6877
6878 /*
6879 * Set the QoS parameter with the association request structure
6880 */
6881 static int ipw_qos_association(struct ipw_priv *priv,
6882                                struct ieee80211_network *network)
6883 {
6884         int err = 0;
6885         struct ieee80211_qos_data *qos_data = NULL;
6886         struct ieee80211_qos_data ibss_data = {
6887                 .supported = 1,
6888                 .active = 1,
6889         };
6890
6891         switch (priv->ieee->iw_mode) {
6892         case IW_MODE_ADHOC:
6893                 BUG_ON(!(network->capability & WLAN_CAPABILITY_IBSS));
6894
6895                 qos_data = &ibss_data;
6896                 break;
6897
6898         case IW_MODE_INFRA:
6899                 qos_data = &network->qos_data;
6900                 break;
6901
6902         default:
6903                 BUG();
6904                 break;
6905         }
6906
6907         err = ipw_qos_activate(priv, qos_data);
6908         if (err) {
6909                 priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC;
6910                 return err;
6911         }
6912
6913         if (priv->qos_data.qos_enable && qos_data->supported) {
6914                 IPW_DEBUG_QOS("QoS will be enabled for this association\n");
6915                 priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC;
6916                 return ipw_qos_set_info_element(priv);
6917         }
6918
6919         return 0;
6920 }
6921
6922 /*
6923 * handling the beaconing responces. if we get different QoS setting
6924 * of the network from the the associated setting adjust the QoS
6925 * setting
6926 */
6927 static int ipw_qos_association_resp(struct ipw_priv *priv,
6928                                     struct ieee80211_network *network)
6929 {
6930         int ret = 0;
6931         unsigned long flags;
6932         u32 size = sizeof(struct ieee80211_qos_parameters);
6933         int set_qos_param = 0;
6934
6935         if ((priv == NULL) || (network == NULL) ||
6936             (priv->assoc_network == NULL))
6937                 return ret;
6938
6939         if (!(priv->status & STATUS_ASSOCIATED))
6940                 return ret;
6941
6942         if ((priv->ieee->iw_mode != IW_MODE_INFRA))
6943                 return ret;
6944
6945         spin_lock_irqsave(&priv->ieee->lock, flags);
6946         if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
6947                 memcpy(&priv->assoc_network->qos_data, &network->qos_data,
6948                        sizeof(struct ieee80211_qos_data));
6949                 priv->assoc_network->qos_data.active = 1;
6950                 if ((network->qos_data.old_param_count !=
6951                      network->qos_data.param_count)) {
6952                         set_qos_param = 1;
6953                         network->qos_data.old_param_count =
6954                             network->qos_data.param_count;
6955                 }
6956
6957         } else {
6958                 if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B))
6959                         memcpy(&priv->assoc_network->qos_data.parameters,
6960                                &def_parameters_CCK, size);
6961                 else
6962                         memcpy(&priv->assoc_network->qos_data.parameters,
6963                                &def_parameters_OFDM, size);
6964                 priv->assoc_network->qos_data.active = 0;
6965                 priv->assoc_network->qos_data.supported = 0;
6966                 set_qos_param = 1;
6967         }
6968
6969         spin_unlock_irqrestore(&priv->ieee->lock, flags);
6970
6971         if (set_qos_param == 1)
6972                 schedule_work(&priv->qos_activate);
6973
6974         return ret;
6975 }
6976
6977 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv)
6978 {
6979         u32 ret = 0;
6980
6981         if ((priv == NULL))
6982                 return 0;
6983
6984         if (!(priv->ieee->modulation & IEEE80211_OFDM_MODULATION))
6985                 ret = priv->qos_data.burst_duration_CCK;
6986         else
6987                 ret = priv->qos_data.burst_duration_OFDM;
6988
6989         return ret;
6990 }
6991
6992 /*
6993 * Initialize the setting of QoS global
6994 */
6995 static void ipw_qos_init(struct ipw_priv *priv, int enable,
6996                          int burst_enable, u32 burst_duration_CCK,
6997                          u32 burst_duration_OFDM)
6998 {
6999         priv->qos_data.qos_enable = enable;
7000
7001         if (priv->qos_data.qos_enable) {
7002                 priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK;
7003                 priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM;
7004                 IPW_DEBUG_QOS("QoS is enabled\n");
7005         } else {
7006                 priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK;
7007                 priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM;
7008                 IPW_DEBUG_QOS("QoS is not enabled\n");
7009         }
7010
7011         priv->qos_data.burst_enable = burst_enable;
7012
7013         if (burst_enable) {
7014                 priv->qos_data.burst_duration_CCK = burst_duration_CCK;
7015                 priv->qos_data.burst_duration_OFDM = burst_duration_OFDM;
7016         } else {
7017                 priv->qos_data.burst_duration_CCK = 0;
7018                 priv->qos_data.burst_duration_OFDM = 0;
7019         }
7020 }
7021
7022 /*
7023 * map the packet priority to the right TX Queue
7024 */
7025 static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority)
7026 {
7027         if (priority > 7 || !priv->qos_data.qos_enable)
7028                 priority = 0;
7029
7030         return from_priority_to_tx_queue[priority] - 1;
7031 }
7032
7033 static int ipw_is_qos_active(struct net_device *dev,
7034                              struct sk_buff *skb)
7035 {
7036         struct ipw_priv *priv = ieee80211_priv(dev);
7037         struct ieee80211_qos_data *qos_data = NULL;
7038         int active, supported;
7039         u8 *daddr = skb->data + ETH_ALEN;
7040         int unicast = !is_multicast_ether_addr(daddr);
7041
7042         if (!(priv->status & STATUS_ASSOCIATED))
7043                 return 0;
7044
7045         qos_data = &priv->assoc_network->qos_data;
7046
7047         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7048                 if (unicast == 0)
7049                         qos_data->active = 0;
7050                 else
7051                         qos_data->active = qos_data->supported;
7052         }
7053         active = qos_data->active;
7054         supported = qos_data->supported;
7055         IPW_DEBUG_QOS("QoS  %d network is QoS active %d  supported %d  "
7056                       "unicast %d\n",
7057                       priv->qos_data.qos_enable, active, supported, unicast);
7058         if (active && priv->qos_data.qos_enable)
7059                 return 1;
7060
7061         return 0;
7062
7063 }
7064 /*
7065 * add QoS parameter to the TX command
7066 */
7067 static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv,
7068                                         u16 priority,
7069                                         struct tfd_data *tfd)
7070 {
7071         int tx_queue_id = 0;
7072
7073
7074         tx_queue_id = from_priority_to_tx_queue[priority] - 1;
7075         tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED;
7076
7077         if (priv->qos_data.qos_no_ack_mask & (1UL << tx_queue_id)) {
7078                 tfd->tx_flags &= ~DCT_FLAG_ACK_REQD;
7079                 tfd->tfd.tfd_26.mchdr.qos_ctrl |= cpu_to_le16(CTRL_QOS_NO_ACK);
7080         }
7081         return 0;
7082 }
7083
7084 /*
7085 * background support to run QoS activate functionality
7086 */
7087 static void ipw_bg_qos_activate(void *data)
7088 {
7089         struct ipw_priv *priv = data;
7090
7091         if (priv == NULL)
7092                 return;
7093
7094         mutex_lock(&priv->mutex);
7095
7096         if (priv->status & STATUS_ASSOCIATED)
7097                 ipw_qos_activate(priv, &(priv->assoc_network->qos_data));
7098
7099         mutex_unlock(&priv->mutex);
7100 }
7101
7102 static int ipw_handle_probe_response(struct net_device *dev,
7103                                      struct ieee80211_probe_response *resp,
7104                                      struct ieee80211_network *network)
7105 {
7106         struct ipw_priv *priv = ieee80211_priv(dev);
7107         int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7108                               (network == priv->assoc_network));
7109
7110         ipw_qos_handle_probe_response(priv, active_network, network);
7111
7112         return 0;
7113 }
7114
7115 static int ipw_handle_beacon(struct net_device *dev,
7116                              struct ieee80211_beacon *resp,
7117                              struct ieee80211_network *network)
7118 {
7119         struct ipw_priv *priv = ieee80211_priv(dev);
7120         int active_network = ((priv->status & STATUS_ASSOCIATED) &&
7121                               (network == priv->assoc_network));
7122
7123         ipw_qos_handle_probe_response(priv, active_network, network);
7124
7125         return 0;
7126 }
7127
7128 static int ipw_handle_assoc_response(struct net_device *dev,
7129                                      struct ieee80211_assoc_response *resp,
7130                                      struct ieee80211_network *network)
7131 {
7132         struct ipw_priv *priv = ieee80211_priv(dev);
7133         ipw_qos_association_resp(priv, network);
7134         return 0;
7135 }
7136
7137 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct ieee80211_qos_parameters
7138                                        *qos_param)
7139 {
7140         return ipw_send_cmd_pdu(priv, IPW_CMD_QOS_PARAMETERS,
7141                                 sizeof(*qos_param) * 3, qos_param);
7142 }
7143
7144 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct ieee80211_qos_information_element
7145                                      *qos_param)
7146 {
7147         return ipw_send_cmd_pdu(priv, IPW_CMD_WME_INFO, sizeof(*qos_param),
7148                                 qos_param);
7149 }
7150
7151 #endif                          /* CONFIG_IPW2200_QOS */
7152
7153 static int ipw_associate_network(struct ipw_priv *priv,
7154                                  struct ieee80211_network *network,
7155                                  struct ipw_supported_rates *rates, int roaming)
7156 {
7157         int err;
7158
7159         if (priv->config & CFG_FIXED_RATE)
7160                 ipw_set_fixed_rate(priv, network->mode);
7161
7162         if (!(priv->config & CFG_STATIC_ESSID)) {
7163                 priv->essid_len = min(network->ssid_len,
7164                                       (u8) IW_ESSID_MAX_SIZE);
7165                 memcpy(priv->essid, network->ssid, priv->essid_len);
7166         }
7167
7168         network->last_associate = jiffies;
7169
7170         memset(&priv->assoc_request, 0, sizeof(priv->assoc_request));
7171         priv->assoc_request.channel = network->channel;
7172         priv->assoc_request.auth_key = 0;
7173
7174         if ((priv->capability & CAP_PRIVACY_ON) &&
7175             (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY)) {
7176                 priv->assoc_request.auth_type = AUTH_SHARED_KEY;
7177                 priv->assoc_request.auth_key = priv->ieee->sec.active_key;
7178
7179                 if (priv->ieee->sec.level == SEC_LEVEL_1)
7180                         ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
7181
7182         } else if ((priv->capability & CAP_PRIVACY_ON) &&
7183                    (priv->ieee->sec.auth_mode == WLAN_AUTH_LEAP))
7184                 priv->assoc_request.auth_type = AUTH_LEAP;
7185         else
7186                 priv->assoc_request.auth_type = AUTH_OPEN;
7187
7188         if (priv->ieee->wpa_ie_len) {
7189                 priv->assoc_request.policy_support = 0x02;      /* RSN active */
7190                 ipw_set_rsn_capa(priv, priv->ieee->wpa_ie,
7191                                  priv->ieee->wpa_ie_len);
7192         }
7193
7194         /*
7195          * It is valid for our ieee device to support multiple modes, but
7196          * when it comes to associating to a given network we have to choose
7197          * just one mode.
7198          */
7199         if (network->mode & priv->ieee->mode & IEEE_A)
7200                 priv->assoc_request.ieee_mode = IPW_A_MODE;
7201         else if (network->mode & priv->ieee->mode & IEEE_G)
7202                 priv->assoc_request.ieee_mode = IPW_G_MODE;
7203         else if (network->mode & priv->ieee->mode & IEEE_B)
7204                 priv->assoc_request.ieee_mode = IPW_B_MODE;
7205
7206         priv->assoc_request.capability = network->capability;
7207         if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
7208             && !(priv->config & CFG_PREAMBLE_LONG)) {
7209                 priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE;
7210         } else {
7211                 priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE;
7212
7213                 /* Clear the short preamble if we won't be supporting it */
7214                 priv->assoc_request.capability &=
7215                     ~WLAN_CAPABILITY_SHORT_PREAMBLE;
7216         }
7217
7218         /* Clear capability bits that aren't used in Ad Hoc */
7219         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7220                 priv->assoc_request.capability &=
7221                     ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
7222
7223         IPW_DEBUG_ASSOC("%sssocation attempt: '%s', channel %d, "
7224                         "802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n",
7225                         roaming ? "Rea" : "A",
7226                         escape_essid(priv->essid, priv->essid_len),
7227                         network->channel,
7228                         ipw_modes[priv->assoc_request.ieee_mode],
7229                         rates->num_rates,
7230                         (priv->assoc_request.preamble_length ==
7231                          DCT_FLAG_LONG_PREAMBLE) ? "long" : "short",
7232                         network->capability &
7233                         WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long",
7234                         priv->capability & CAP_PRIVACY_ON ? "on " : "off",
7235                         priv->capability & CAP_PRIVACY_ON ?
7236                         (priv->capability & CAP_SHARED_KEY ? "(shared)" :
7237                          "(open)") : "",
7238                         priv->capability & CAP_PRIVACY_ON ? " key=" : "",
7239                         priv->capability & CAP_PRIVACY_ON ?
7240                         '1' + priv->ieee->sec.active_key : '.',
7241                         priv->capability & CAP_PRIVACY_ON ? '.' : ' ');
7242
7243         priv->assoc_request.beacon_interval = network->beacon_interval;
7244         if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
7245             (network->time_stamp[0] == 0) && (network->time_stamp[1] == 0)) {
7246                 priv->assoc_request.assoc_type = HC_IBSS_START;
7247                 priv->assoc_request.assoc_tsf_msw = 0;
7248                 priv->assoc_request.assoc_tsf_lsw = 0;
7249         } else {
7250                 if (unlikely(roaming))
7251                         priv->assoc_request.assoc_type = HC_REASSOCIATE;
7252                 else
7253                         priv->assoc_request.assoc_type = HC_ASSOCIATE;
7254                 priv->assoc_request.assoc_tsf_msw = network->time_stamp[1];
7255                 priv->assoc_request.assoc_tsf_lsw = network->time_stamp[0];
7256         }
7257
7258         memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN);
7259
7260         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7261                 memset(&priv->assoc_request.dest, 0xFF, ETH_ALEN);
7262                 priv->assoc_request.atim_window = network->atim_window;
7263         } else {
7264                 memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN);
7265                 priv->assoc_request.atim_window = 0;
7266         }
7267
7268         priv->assoc_request.listen_interval = network->listen_interval;
7269
7270         err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
7271         if (err) {
7272                 IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
7273                 return err;
7274         }
7275
7276         rates->ieee_mode = priv->assoc_request.ieee_mode;
7277         rates->purpose = IPW_RATE_CONNECT;
7278         ipw_send_supported_rates(priv, rates);
7279
7280         if (priv->assoc_request.ieee_mode == IPW_G_MODE)
7281                 priv->sys_config.dot11g_auto_detection = 1;
7282         else
7283                 priv->sys_config.dot11g_auto_detection = 0;
7284
7285         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7286                 priv->sys_config.answer_broadcast_ssid_probe = 1;
7287         else
7288                 priv->sys_config.answer_broadcast_ssid_probe = 0;
7289
7290         err = ipw_send_system_config(priv);
7291         if (err) {
7292                 IPW_DEBUG_HC("Attempt to send sys config command failed.\n");
7293                 return err;
7294         }
7295
7296         IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi);
7297         err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM);
7298         if (err) {
7299                 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7300                 return err;
7301         }
7302
7303         /*
7304          * If preemption is enabled, it is possible for the association
7305          * to complete before we return from ipw_send_associate.  Therefore
7306          * we have to be sure and update our priviate data first.
7307          */
7308         priv->channel = network->channel;
7309         memcpy(priv->bssid, network->bssid, ETH_ALEN);
7310         priv->status |= STATUS_ASSOCIATING;
7311         priv->status &= ~STATUS_SECURITY_UPDATED;
7312
7313         priv->assoc_network = network;
7314
7315 #ifdef CONFIG_IPW2200_QOS
7316         ipw_qos_association(priv, network);
7317 #endif
7318
7319         err = ipw_send_associate(priv, &priv->assoc_request);
7320         if (err) {
7321                 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7322                 return err;
7323         }
7324
7325         IPW_DEBUG(IPW_DL_STATE, "associating: '%s' " MAC_FMT " \n",
7326                   escape_essid(priv->essid, priv->essid_len),
7327                   MAC_ARG(priv->bssid));
7328
7329         return 0;
7330 }
7331
7332 static void ipw_roam(void *data)
7333 {
7334         struct ipw_priv *priv = data;
7335         struct ieee80211_network *network = NULL;
7336         struct ipw_network_match match = {
7337                 .network = priv->assoc_network
7338         };
7339
7340         /* The roaming process is as follows:
7341          *
7342          * 1.  Missed beacon threshold triggers the roaming process by
7343          *     setting the status ROAM bit and requesting a scan.
7344          * 2.  When the scan completes, it schedules the ROAM work
7345          * 3.  The ROAM work looks at all of the known networks for one that
7346          *     is a better network than the currently associated.  If none
7347          *     found, the ROAM process is over (ROAM bit cleared)
7348          * 4.  If a better network is found, a disassociation request is
7349          *     sent.
7350          * 5.  When the disassociation completes, the roam work is again
7351          *     scheduled.  The second time through, the driver is no longer
7352          *     associated, and the newly selected network is sent an
7353          *     association request.
7354          * 6.  At this point ,the roaming process is complete and the ROAM
7355          *     status bit is cleared.
7356          */
7357
7358         /* If we are no longer associated, and the roaming bit is no longer
7359          * set, then we are not actively roaming, so just return */
7360         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING)))
7361                 return;
7362
7363         if (priv->status & STATUS_ASSOCIATED) {
7364                 /* First pass through ROAM process -- look for a better
7365                  * network */
7366                 unsigned long flags;
7367                 u8 rssi = priv->assoc_network->stats.rssi;
7368                 priv->assoc_network->stats.rssi = -128;
7369                 spin_lock_irqsave(&priv->ieee->lock, flags);
7370                 list_for_each_entry(network, &priv->ieee->network_list, list) {
7371                         if (network != priv->assoc_network)
7372                                 ipw_best_network(priv, &match, network, 1);
7373                 }
7374                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7375                 priv->assoc_network->stats.rssi = rssi;
7376
7377                 if (match.network == priv->assoc_network) {
7378                         IPW_DEBUG_ASSOC("No better APs in this network to "
7379                                         "roam to.\n");
7380                         priv->status &= ~STATUS_ROAMING;
7381                         ipw_debug_config(priv);
7382                         return;
7383                 }
7384
7385                 ipw_send_disassociate(priv, 1);
7386                 priv->assoc_network = match.network;
7387
7388                 return;
7389         }
7390
7391         /* Second pass through ROAM process -- request association */
7392         ipw_compatible_rates(priv, priv->assoc_network, &match.rates);
7393         ipw_associate_network(priv, priv->assoc_network, &match.rates, 1);
7394         priv->status &= ~STATUS_ROAMING;
7395 }
7396
7397 static void ipw_bg_roam(void *data)
7398 {
7399         struct ipw_priv *priv = data;
7400         mutex_lock(&priv->mutex);
7401         ipw_roam(data);
7402         mutex_unlock(&priv->mutex);
7403 }
7404
7405 static int ipw_associate(void *data)
7406 {
7407         struct ipw_priv *priv = data;
7408
7409         struct ieee80211_network *network = NULL;
7410         struct ipw_network_match match = {
7411                 .network = NULL
7412         };
7413         struct ipw_supported_rates *rates;
7414         struct list_head *element;
7415         unsigned long flags;
7416
7417         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7418                 IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n");
7419                 return 0;
7420         }
7421
7422         if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
7423                 IPW_DEBUG_ASSOC("Not attempting association (already in "
7424                                 "progress)\n");
7425                 return 0;
7426         }
7427
7428         if (priv->status & STATUS_DISASSOCIATING) {
7429                 IPW_DEBUG_ASSOC("Not attempting association (in "
7430                                 "disassociating)\n ");
7431                 queue_work(priv->workqueue, &priv->associate);
7432                 return 0;
7433         }
7434
7435         if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) {
7436                 IPW_DEBUG_ASSOC("Not attempting association (scanning or not "
7437                                 "initialized)\n");
7438                 return 0;
7439         }
7440
7441         if (!(priv->config & CFG_ASSOCIATE) &&
7442             !(priv->config & (CFG_STATIC_ESSID |
7443                               CFG_STATIC_CHANNEL | CFG_STATIC_BSSID))) {
7444                 IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n");
7445                 return 0;
7446         }
7447
7448         /* Protect our use of the network_list */
7449         spin_lock_irqsave(&priv->ieee->lock, flags);
7450         list_for_each_entry(network, &priv->ieee->network_list, list)
7451             ipw_best_network(priv, &match, network, 0);
7452
7453         network = match.network;
7454         rates = &match.rates;
7455
7456         if (network == NULL &&
7457             priv->ieee->iw_mode == IW_MODE_ADHOC &&
7458             priv->config & CFG_ADHOC_CREATE &&
7459             priv->config & CFG_STATIC_ESSID &&
7460             priv->config & CFG_STATIC_CHANNEL &&
7461             !list_empty(&priv->ieee->network_free_list)) {
7462                 element = priv->ieee->network_free_list.next;
7463                 network = list_entry(element, struct ieee80211_network, list);
7464                 ipw_adhoc_create(priv, network);
7465                 rates = &priv->rates;
7466                 list_del(element);
7467                 list_add_tail(&network->list, &priv->ieee->network_list);
7468         }
7469         spin_unlock_irqrestore(&priv->ieee->lock, flags);
7470
7471         /* If we reached the end of the list, then we don't have any valid
7472          * matching APs */
7473         if (!network) {
7474                 ipw_debug_config(priv);
7475
7476                 if (!(priv->status & STATUS_SCANNING)) {
7477                         if (!(priv->config & CFG_SPEED_SCAN))
7478                                 queue_delayed_work(priv->workqueue,
7479                                                    &priv->request_scan,
7480                                                    SCAN_INTERVAL);
7481                         else
7482                                 queue_work(priv->workqueue,
7483                                            &priv->request_scan);
7484                 }
7485
7486                 return 0;
7487         }
7488
7489         ipw_associate_network(priv, network, rates, 0);
7490
7491         return 1;
7492 }
7493
7494 static void ipw_bg_associate(void *data)
7495 {
7496         struct ipw_priv *priv = data;
7497         mutex_lock(&priv->mutex);
7498         ipw_associate(data);
7499         mutex_unlock(&priv->mutex);
7500 }
7501
7502 static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv,
7503                                       struct sk_buff *skb)
7504 {
7505         struct ieee80211_hdr *hdr;
7506         u16 fc;
7507
7508         hdr = (struct ieee80211_hdr *)skb->data;
7509         fc = le16_to_cpu(hdr->frame_ctl);
7510         if (!(fc & IEEE80211_FCTL_PROTECTED))
7511                 return;
7512
7513         fc &= ~IEEE80211_FCTL_PROTECTED;
7514         hdr->frame_ctl = cpu_to_le16(fc);
7515         switch (priv->ieee->sec.level) {
7516         case SEC_LEVEL_3:
7517                 /* Remove CCMP HDR */
7518                 memmove(skb->data + IEEE80211_3ADDR_LEN,
7519                         skb->data + IEEE80211_3ADDR_LEN + 8,
7520                         skb->len - IEEE80211_3ADDR_LEN - 8);
7521                 skb_trim(skb, skb->len - 16);   /* CCMP_HDR_LEN + CCMP_MIC_LEN */
7522                 break;
7523         case SEC_LEVEL_2:
7524                 break;
7525         case SEC_LEVEL_1:
7526                 /* Remove IV */
7527                 memmove(skb->data + IEEE80211_3ADDR_LEN,
7528                         skb->data + IEEE80211_3ADDR_LEN + 4,
7529                         skb->len - IEEE80211_3ADDR_LEN - 4);
7530                 skb_trim(skb, skb->len - 8);    /* IV + ICV */
7531                 break;
7532         case SEC_LEVEL_0:
7533                 break;
7534         default:
7535                 printk(KERN_ERR "Unknow security level %d\n",
7536                        priv->ieee->sec.level);
7537                 break;
7538         }
7539 }
7540
7541 static void ipw_handle_data_packet(struct ipw_priv *priv,
7542                                    struct ipw_rx_mem_buffer *rxb,
7543                                    struct ieee80211_rx_stats *stats)
7544 {
7545         struct ieee80211_hdr_4addr *hdr;
7546         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7547
7548         /* We received data from the HW, so stop the watchdog */
7549         priv->net_dev->trans_start = jiffies;
7550
7551         /* We only process data packets if the
7552          * interface is open */
7553         if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7554                      skb_tailroom(rxb->skb))) {
7555                 priv->ieee->stats.rx_errors++;
7556                 priv->wstats.discard.misc++;
7557                 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7558                 return;
7559         } else if (unlikely(!netif_running(priv->net_dev))) {
7560                 priv->ieee->stats.rx_dropped++;
7561                 priv->wstats.discard.misc++;
7562                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7563                 return;
7564         }
7565
7566         /* Advance skb->data to the start of the actual payload */
7567         skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data));
7568
7569         /* Set the size of the skb to the size of the frame */
7570         skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length));
7571
7572         IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7573
7574         /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */
7575         hdr = (struct ieee80211_hdr_4addr *)rxb->skb->data;
7576         if (priv->ieee->iw_mode != IW_MODE_MONITOR &&
7577             (is_multicast_ether_addr(hdr->addr1) ?
7578              !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt))
7579                 ipw_rebuild_decrypted_skb(priv, rxb->skb);
7580
7581         if (!ieee80211_rx(priv->ieee, rxb->skb, stats))
7582                 priv->ieee->stats.rx_errors++;
7583         else {                  /* ieee80211_rx succeeded, so it now owns the SKB */
7584                 rxb->skb = NULL;
7585                 __ipw_led_activity_on(priv);
7586         }
7587 }
7588
7589 #ifdef CONFIG_IPW2200_RADIOTAP
7590 static void ipw_handle_data_packet_monitor(struct ipw_priv *priv,
7591                                            struct ipw_rx_mem_buffer *rxb,
7592                                            struct ieee80211_rx_stats *stats)
7593 {
7594         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7595         struct ipw_rx_frame *frame = &pkt->u.frame;
7596
7597         /* initial pull of some data */
7598         u16 received_channel = frame->received_channel;
7599         u8 antennaAndPhy = frame->antennaAndPhy;
7600         s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM;       /* call it signed anyhow */
7601         u16 pktrate = frame->rate;
7602
7603         /* Magic struct that slots into the radiotap header -- no reason
7604          * to build this manually element by element, we can write it much
7605          * more efficiently than we can parse it. ORDER MATTERS HERE */
7606         struct ipw_rt_hdr *ipw_rt;
7607
7608         short len = le16_to_cpu(pkt->u.frame.length);
7609
7610         /* We received data from the HW, so stop the watchdog */
7611         priv->net_dev->trans_start = jiffies;
7612
7613         /* We only process data packets if the
7614          * interface is open */
7615         if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7616                      skb_tailroom(rxb->skb))) {
7617                 priv->ieee->stats.rx_errors++;
7618                 priv->wstats.discard.misc++;
7619                 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7620                 return;
7621         } else if (unlikely(!netif_running(priv->net_dev))) {
7622                 priv->ieee->stats.rx_dropped++;
7623                 priv->wstats.discard.misc++;
7624                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7625                 return;
7626         }
7627
7628         /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7629          * that now */
7630         if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7631                 /* FIXME: Should alloc bigger skb instead */
7632                 priv->ieee->stats.rx_dropped++;
7633                 priv->wstats.discard.misc++;
7634                 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7635                 return;
7636         }
7637
7638         /* copy the frame itself */
7639         memmove(rxb->skb->data + sizeof(struct ipw_rt_hdr),
7640                 rxb->skb->data + IPW_RX_FRAME_SIZE, len);
7641
7642         /* Zero the radiotap static buffer  ...  We only need to zero the bytes NOT
7643          * part of our real header, saves a little time.
7644          *
7645          * No longer necessary since we fill in all our data.  Purge before merging
7646          * patch officially.
7647          * memset(rxb->skb->data + sizeof(struct ipw_rt_hdr), 0,
7648          *        IEEE80211_RADIOTAP_HDRLEN - sizeof(struct ipw_rt_hdr));
7649          */
7650
7651         ipw_rt = (struct ipw_rt_hdr *)rxb->skb->data;
7652
7653         ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
7654         ipw_rt->rt_hdr.it_pad = 0;      /* always good to zero */
7655         ipw_rt->rt_hdr.it_len = sizeof(struct ipw_rt_hdr);      /* total header+data */
7656
7657         /* Big bitfield of all the fields we provide in radiotap */
7658         ipw_rt->rt_hdr.it_present =
7659             ((1 << IEEE80211_RADIOTAP_FLAGS) |
7660              (1 << IEEE80211_RADIOTAP_RATE) |
7661              (1 << IEEE80211_RADIOTAP_CHANNEL) |
7662              (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
7663              (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
7664              (1 << IEEE80211_RADIOTAP_ANTENNA));
7665
7666         /* Zero the flags, we'll add to them as we go */
7667         ipw_rt->rt_flags = 0;
7668         ipw_rt->rt_tsf = 0ULL;
7669
7670         /* Convert signal to DBM */
7671         ipw_rt->rt_dbmsignal = antsignal;
7672
7673         /* Convert the channel data and set the flags */
7674         ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel));
7675         if (received_channel > 14) {    /* 802.11a */
7676                 ipw_rt->rt_chbitmask =
7677                     cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
7678         } else if (antennaAndPhy & 32) {        /* 802.11b */
7679                 ipw_rt->rt_chbitmask =
7680                     cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
7681         } else {                /* 802.11g */
7682                 ipw_rt->rt_chbitmask =
7683                     (IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
7684         }
7685
7686         /* set the rate in multiples of 500k/s */
7687         switch (pktrate) {
7688         case IPW_TX_RATE_1MB:
7689                 ipw_rt->rt_rate = 2;
7690                 break;
7691         case IPW_TX_RATE_2MB:
7692                 ipw_rt->rt_rate = 4;
7693                 break;
7694         case IPW_TX_RATE_5MB:
7695                 ipw_rt->rt_rate = 10;
7696                 break;
7697         case IPW_TX_RATE_6MB:
7698                 ipw_rt->rt_rate = 12;
7699                 break;
7700         case IPW_TX_RATE_9MB:
7701                 ipw_rt->rt_rate = 18;
7702                 break;
7703         case IPW_TX_RATE_11MB:
7704                 ipw_rt->rt_rate = 22;
7705                 break;
7706         case IPW_TX_RATE_12MB:
7707                 ipw_rt->rt_rate = 24;
7708                 break;
7709         case IPW_TX_RATE_18MB:
7710                 ipw_rt->rt_rate = 36;
7711                 break;
7712         case IPW_TX_RATE_24MB:
7713                 ipw_rt->rt_rate = 48;
7714                 break;
7715         case IPW_TX_RATE_36MB:
7716                 ipw_rt->rt_rate = 72;
7717                 break;
7718         case IPW_TX_RATE_48MB:
7719                 ipw_rt->rt_rate = 96;
7720                 break;
7721         case IPW_TX_RATE_54MB:
7722                 ipw_rt->rt_rate = 108;
7723                 break;
7724         default:
7725                 ipw_rt->rt_rate = 0;
7726                 break;
7727         }
7728
7729         /* antenna number */
7730         ipw_rt->rt_antenna = (antennaAndPhy & 3);       /* Is this right? */
7731
7732         /* set the preamble flag if we have it */
7733         if ((antennaAndPhy & 64))
7734                 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
7735
7736         /* Set the size of the skb to the size of the frame */
7737         skb_put(rxb->skb, len + sizeof(struct ipw_rt_hdr));
7738
7739         IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7740
7741         if (!ieee80211_rx(priv->ieee, rxb->skb, stats))
7742                 priv->ieee->stats.rx_errors++;
7743         else {                  /* ieee80211_rx succeeded, so it now owns the SKB */
7744                 rxb->skb = NULL;
7745                 /* no LED during capture */
7746         }
7747 }
7748 #endif
7749
7750 #ifdef CONFIG_IPW2200_PROMISCUOUS
7751 #define ieee80211_is_probe_response(fc) \
7752    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && \
7753     (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP )
7754
7755 #define ieee80211_is_management(fc) \
7756    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
7757
7758 #define ieee80211_is_control(fc) \
7759    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL)
7760
7761 #define ieee80211_is_data(fc) \
7762    ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
7763
7764 #define ieee80211_is_assoc_request(fc) \
7765    ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ)
7766
7767 #define ieee80211_is_reassoc_request(fc) \
7768    ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
7769
7770 static void ipw_handle_promiscuous_rx(struct ipw_priv *priv,
7771                                       struct ipw_rx_mem_buffer *rxb,
7772                                       struct ieee80211_rx_stats *stats)
7773 {
7774         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7775         struct ipw_rx_frame *frame = &pkt->u.frame;
7776         struct ipw_rt_hdr *ipw_rt;
7777
7778         /* First cache any information we need before we overwrite
7779          * the information provided in the skb from the hardware */
7780         struct ieee80211_hdr *hdr;
7781         u16 channel = frame->received_channel;
7782         u8 phy_flags = frame->antennaAndPhy;
7783         s8 signal = frame->rssi_dbm - IPW_RSSI_TO_DBM;
7784         s8 noise = frame->noise;
7785         u8 rate = frame->rate;
7786         short len = le16_to_cpu(pkt->u.frame.length);
7787         struct sk_buff *skb;
7788         int hdr_only = 0;
7789         u16 filter = priv->prom_priv->filter;
7790
7791         /* If the filter is set to not include Rx frames then return */
7792         if (filter & IPW_PROM_NO_RX)
7793                 return;
7794
7795         /* We received data from the HW, so stop the watchdog */
7796         priv->prom_net_dev->trans_start = jiffies;
7797
7798         if (unlikely((len + IPW_RX_FRAME_SIZE) > skb_tailroom(rxb->skb))) {
7799                 priv->prom_priv->ieee->stats.rx_errors++;
7800                 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7801                 return;
7802         }
7803
7804         /* We only process data packets if the interface is open */
7805         if (unlikely(!netif_running(priv->prom_net_dev))) {
7806                 priv->prom_priv->ieee->stats.rx_dropped++;
7807                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7808                 return;
7809         }
7810
7811         /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7812          * that now */
7813         if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7814                 /* FIXME: Should alloc bigger skb instead */
7815                 priv->prom_priv->ieee->stats.rx_dropped++;
7816                 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7817                 return;
7818         }
7819
7820         hdr = (void *)rxb->skb->data + IPW_RX_FRAME_SIZE;
7821         if (ieee80211_is_management(le16_to_cpu(hdr->frame_ctl))) {
7822                 if (filter & IPW_PROM_NO_MGMT)
7823                         return;
7824                 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
7825                         hdr_only = 1;
7826         } else if (ieee80211_is_control(le16_to_cpu(hdr->frame_ctl))) {
7827                 if (filter & IPW_PROM_NO_CTL)
7828                         return;
7829                 if (filter & IPW_PROM_CTL_HEADER_ONLY)
7830                         hdr_only = 1;
7831         } else if (ieee80211_is_data(le16_to_cpu(hdr->frame_ctl))) {
7832                 if (filter & IPW_PROM_NO_DATA)
7833                         return;
7834                 if (filter & IPW_PROM_DATA_HEADER_ONLY)
7835                         hdr_only = 1;
7836         }
7837
7838         /* Copy the SKB since this is for the promiscuous side */
7839         skb = skb_copy(rxb->skb, GFP_ATOMIC);
7840         if (skb == NULL) {
7841                 IPW_ERROR("skb_clone failed for promiscuous copy.\n");
7842                 return;
7843         }
7844
7845         /* copy the frame data to write after where the radiotap header goes */
7846         ipw_rt = (void *)skb->data;
7847
7848         if (hdr_only)
7849                 len = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
7850
7851         memcpy(ipw_rt->payload, hdr, len);
7852
7853         /* Zero the radiotap static buffer  ...  We only need to zero the bytes
7854          * NOT part of our real header, saves a little time.
7855          *
7856          * No longer necessary since we fill in all our data.  Purge before
7857          * merging patch officially.
7858          * memset(rxb->skb->data + sizeof(struct ipw_rt_hdr), 0,
7859          *        IEEE80211_RADIOTAP_HDRLEN - sizeof(struct ipw_rt_hdr));
7860          */
7861
7862         ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
7863         ipw_rt->rt_hdr.it_pad = 0;      /* always good to zero */
7864         ipw_rt->rt_hdr.it_len = sizeof(*ipw_rt);        /* total header+data */
7865
7866         /* Set the size of the skb to the size of the frame */
7867         skb_put(skb, ipw_rt->rt_hdr.it_len + len);
7868
7869         /* Big bitfield of all the fields we provide in radiotap */
7870         ipw_rt->rt_hdr.it_present =
7871             ((1 << IEEE80211_RADIOTAP_FLAGS) |
7872              (1 << IEEE80211_RADIOTAP_RATE) |
7873              (1 << IEEE80211_RADIOTAP_CHANNEL) |
7874              (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
7875              (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
7876              (1 << IEEE80211_RADIOTAP_ANTENNA));
7877
7878         /* Zero the flags, we'll add to them as we go */
7879         ipw_rt->rt_flags = 0;
7880         ipw_rt->rt_tsf = 0ULL;
7881
7882         /* Convert to DBM */
7883         ipw_rt->rt_dbmsignal = signal;
7884         ipw_rt->rt_dbmnoise = noise;
7885
7886         /* Convert the channel data and set the flags */
7887         ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(channel));
7888         if (channel > 14) {     /* 802.11a */
7889                 ipw_rt->rt_chbitmask =
7890                     cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
7891         } else if (phy_flags & (1 << 5)) {      /* 802.11b */
7892                 ipw_rt->rt_chbitmask =
7893                     cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
7894         } else {                /* 802.11g */
7895                 ipw_rt->rt_chbitmask =
7896                     (IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
7897         }
7898
7899         /* set the rate in multiples of 500k/s */
7900         switch (rate) {
7901         case IPW_TX_RATE_1MB:
7902                 ipw_rt->rt_rate = 2;
7903                 break;
7904         case IPW_TX_RATE_2MB:
7905                 ipw_rt->rt_rate = 4;
7906                 break;
7907         case IPW_TX_RATE_5MB:
7908                 ipw_rt->rt_rate = 10;
7909                 break;
7910         case IPW_TX_RATE_6MB:
7911                 ipw_rt->rt_rate = 12;
7912                 break;
7913         case IPW_TX_RATE_9MB:
7914                 ipw_rt->rt_rate = 18;
7915                 break;
7916         case IPW_TX_RATE_11MB:
7917                 ipw_rt->rt_rate = 22;
7918                 break;
7919         case IPW_TX_RATE_12MB:
7920                 ipw_rt->rt_rate = 24;
7921                 break;
7922         case IPW_TX_RATE_18MB:
7923                 ipw_rt->rt_rate = 36;
7924                 break;
7925         case IPW_TX_RATE_24MB:
7926                 ipw_rt->rt_rate = 48;
7927                 break;
7928         case IPW_TX_RATE_36MB:
7929                 ipw_rt->rt_rate = 72;
7930                 break;
7931         case IPW_TX_RATE_48MB:
7932                 ipw_rt->rt_rate = 96;
7933                 break;
7934         case IPW_TX_RATE_54MB:
7935                 ipw_rt->rt_rate = 108;
7936                 break;
7937         default:
7938                 ipw_rt->rt_rate = 0;
7939                 break;
7940         }
7941
7942         /* antenna number */
7943         ipw_rt->rt_antenna = (phy_flags & 3);
7944
7945         /* set the preamble flag if we have it */
7946         if (phy_flags & (1 << 6))
7947                 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
7948
7949         IPW_DEBUG_RX("Rx packet of %d bytes.\n", skb->len);
7950
7951         if (!ieee80211_rx(priv->prom_priv->ieee, skb, stats)) {
7952                 priv->prom_priv->ieee->stats.rx_errors++;
7953                 dev_kfree_skb_any(skb);
7954         }
7955 }
7956 #endif
7957
7958 static int is_network_packet(struct ipw_priv *priv,
7959                                     struct ieee80211_hdr_4addr *header)
7960 {
7961         /* Filter incoming packets to determine if they are targetted toward
7962          * this network, discarding packets coming from ourselves */
7963         switch (priv->ieee->iw_mode) {
7964         case IW_MODE_ADHOC:     /* Header: Dest. | Source    | BSSID */
7965                 /* packets from our adapter are dropped (echo) */
7966                 if (!memcmp(header->addr2, priv->net_dev->dev_addr, ETH_ALEN))
7967                         return 0;
7968
7969                 /* {broad,multi}cast packets to our BSSID go through */
7970                 if (is_multicast_ether_addr(header->addr1))
7971                         return !memcmp(header->addr3, priv->bssid, ETH_ALEN);
7972
7973                 /* packets to our adapter go through */
7974                 return !memcmp(header->addr1, priv->net_dev->dev_addr,
7975                                ETH_ALEN);
7976
7977         case IW_MODE_INFRA:     /* Header: Dest. | BSSID | Source */
7978                 /* packets from our adapter are dropped (echo) */
7979                 if (!memcmp(header->addr3, priv->net_dev->dev_addr, ETH_ALEN))
7980                         return 0;
7981
7982                 /* {broad,multi}cast packets to our BSS go through */
7983                 if (is_multicast_ether_addr(header->addr1))
7984                         return !memcmp(header->addr2, priv->bssid, ETH_ALEN);
7985
7986                 /* packets to our adapter go through */
7987                 return !memcmp(header->addr1, priv->net_dev->dev_addr,
7988                                ETH_ALEN);
7989         }
7990
7991         return 1;
7992 }
7993
7994 #define IPW_PACKET_RETRY_TIME HZ
7995
7996 static  int is_duplicate_packet(struct ipw_priv *priv,
7997                                       struct ieee80211_hdr_4addr *header)
7998 {
7999         u16 sc = le16_to_cpu(header->seq_ctl);
8000         u16 seq = WLAN_GET_SEQ_SEQ(sc);
8001         u16 frag = WLAN_GET_SEQ_FRAG(sc);
8002         u16 *last_seq, *last_frag;
8003         unsigned long *last_time;
8004
8005         switch (priv->ieee->iw_mode) {
8006         case IW_MODE_ADHOC:
8007                 {
8008                         struct list_head *p;
8009                         struct ipw_ibss_seq *entry = NULL;
8010                         u8 *mac = header->addr2;
8011                         int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE;
8012
8013                         __list_for_each(p, &priv->ibss_mac_hash[index]) {
8014                                 entry =
8015                                     list_entry(p, struct ipw_ibss_seq, list);
8016                                 if (!memcmp(entry->mac, mac, ETH_ALEN))
8017                                         break;
8018                         }
8019                         if (p == &priv->ibss_mac_hash[index]) {
8020                                 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
8021                                 if (!entry) {
8022                                         IPW_ERROR
8023                                             ("Cannot malloc new mac entry\n");
8024                                         return 0;
8025                                 }
8026                                 memcpy(entry->mac, mac, ETH_ALEN);
8027                                 entry->seq_num = seq;
8028                                 entry->frag_num = frag;
8029                                 entry->packet_time = jiffies;
8030                                 list_add(&entry->list,
8031                                          &priv->ibss_mac_hash[index]);
8032                                 return 0;
8033                         }
8034                         last_seq = &entry->seq_num;
8035                         last_frag = &entry->frag_num;
8036                         last_time = &entry->packet_time;
8037                         break;
8038                 }
8039         case IW_MODE_INFRA:
8040                 last_seq = &priv->last_seq_num;
8041                 last_frag = &priv->last_frag_num;
8042                 last_time = &priv->last_packet_time;
8043                 break;
8044         default:
8045                 return 0;
8046         }
8047         if ((*last_seq == seq) &&
8048             time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) {
8049                 if (*last_frag == frag)
8050                         goto drop;
8051                 if (*last_frag + 1 != frag)
8052                         /* out-of-order fragment */
8053                         goto drop;
8054         } else
8055                 *last_seq = seq;
8056
8057         *last_frag = frag;
8058         *last_time = jiffies;
8059         return 0;
8060
8061       drop:
8062         /* Comment this line now since we observed the card receives
8063          * duplicate packets but the FCTL_RETRY bit is not set in the
8064          * IBSS mode with fragmentation enabled.
8065          BUG_ON(!(le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_RETRY)); */
8066         return 1;
8067 }
8068
8069 static void ipw_handle_mgmt_packet(struct ipw_priv *priv,
8070                                    struct ipw_rx_mem_buffer *rxb,
8071                                    struct ieee80211_rx_stats *stats)
8072 {
8073         struct sk_buff *skb = rxb->skb;
8074         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data;
8075         struct ieee80211_hdr_4addr *header = (struct ieee80211_hdr_4addr *)
8076             (skb->data + IPW_RX_FRAME_SIZE);
8077
8078         ieee80211_rx_mgt(priv->ieee, header, stats);
8079
8080         if (priv->ieee->iw_mode == IW_MODE_ADHOC &&
8081             ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8082               IEEE80211_STYPE_PROBE_RESP) ||
8083              (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
8084               IEEE80211_STYPE_BEACON))) {
8085                 if (!memcmp(header->addr3, priv->bssid, ETH_ALEN))
8086                         ipw_add_station(priv, header->addr2);
8087         }
8088
8089         if (priv->config & CFG_NET_STATS) {
8090                 IPW_DEBUG_HC("sending stat packet\n");
8091
8092                 /* Set the size of the skb to the size of the full
8093                  * ipw header and 802.11 frame */
8094                 skb_put(skb, le16_to_cpu(pkt->u.frame.length) +
8095                         IPW_RX_FRAME_SIZE);
8096
8097                 /* Advance past the ipw packet header to the 802.11 frame */
8098                 skb_pull(skb, IPW_RX_FRAME_SIZE);
8099
8100                 /* Push the ieee80211_rx_stats before the 802.11 frame */
8101                 memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats));
8102
8103                 skb->dev = priv->ieee->dev;
8104
8105                 /* Point raw at the ieee80211_stats */
8106                 skb->mac.raw = skb->data;
8107
8108                 skb->pkt_type = PACKET_OTHERHOST;
8109                 skb->protocol = __constant_htons(ETH_P_80211_STATS);
8110                 memset(skb->cb, 0, sizeof(rxb->skb->cb));
8111                 netif_rx(skb);
8112                 rxb->skb = NULL;
8113         }
8114 }
8115
8116 /*
8117  * Main entry function for recieving a packet with 80211 headers.  This
8118  * should be called when ever the FW has notified us that there is a new
8119  * skb in the recieve queue.
8120  */
8121 static void ipw_rx(struct ipw_priv *priv)
8122 {
8123         struct ipw_rx_mem_buffer *rxb;
8124         struct ipw_rx_packet *pkt;
8125         struct ieee80211_hdr_4addr *header;
8126         u32 r, w, i;
8127         u8 network_packet;
8128
8129         r = ipw_read32(priv, IPW_RX_READ_INDEX);
8130         w = ipw_read32(priv, IPW_RX_WRITE_INDEX);
8131         i = (priv->rxq->processed + 1) % RX_QUEUE_SIZE;
8132
8133         while (i != r) {
8134                 rxb = priv->rxq->queue[i];
8135                 if (unlikely(rxb == NULL)) {
8136                         printk(KERN_CRIT "Queue not allocated!\n");
8137                         break;
8138                 }
8139                 priv->rxq->queue[i] = NULL;
8140
8141                 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
8142                                             IPW_RX_BUF_SIZE,
8143                                             PCI_DMA_FROMDEVICE);
8144
8145                 pkt = (struct ipw_rx_packet *)rxb->skb->data;
8146                 IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
8147                              pkt->header.message_type,
8148                              pkt->header.rx_seq_num, pkt->header.control_bits);
8149
8150                 switch (pkt->header.message_type) {
8151                 case RX_FRAME_TYPE:     /* 802.11 frame */  {
8152                                 struct ieee80211_rx_stats stats = {
8153                                         .rssi = pkt->u.frame.rssi_dbm -
8154                                             IPW_RSSI_TO_DBM,
8155                                         .signal =
8156                                             le16_to_cpu(pkt->u.frame.rssi_dbm) -
8157                                             IPW_RSSI_TO_DBM + 0x100,
8158                                         .noise =
8159                                             le16_to_cpu(pkt->u.frame.noise),
8160                                         .rate = pkt->u.frame.rate,
8161                                         .mac_time = jiffies,
8162                                         .received_channel =
8163                                             pkt->u.frame.received_channel,
8164                                         .freq =
8165                                             (pkt->u.frame.
8166                                              control & (1 << 0)) ?
8167                                             IEEE80211_24GHZ_BAND :
8168                                             IEEE80211_52GHZ_BAND,
8169                                         .len = le16_to_cpu(pkt->u.frame.length),
8170                                 };
8171
8172                                 if (stats.rssi != 0)
8173                                         stats.mask |= IEEE80211_STATMASK_RSSI;
8174                                 if (stats.signal != 0)
8175                                         stats.mask |= IEEE80211_STATMASK_SIGNAL;
8176                                 if (stats.noise != 0)
8177                                         stats.mask |= IEEE80211_STATMASK_NOISE;
8178                                 if (stats.rate != 0)
8179                                         stats.mask |= IEEE80211_STATMASK_RATE;
8180
8181                                 priv->rx_packets++;
8182
8183 #ifdef CONFIG_IPW2200_PROMISCUOUS
8184         if (priv->prom_net_dev && netif_running(priv->prom_net_dev))
8185                 ipw_handle_promiscuous_rx(priv, rxb, &stats);
8186 #endif
8187
8188 #ifdef CONFIG_IPW2200_MONITOR
8189                                 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8190 #ifdef CONFIG_IPW2200_RADIOTAP
8191
8192                 ipw_handle_data_packet_monitor(priv,
8193                                                rxb,
8194                                                &stats);
8195 #else
8196                 ipw_handle_data_packet(priv, rxb,
8197                                        &stats);
8198 #endif
8199                                         break;
8200                                 }
8201 #endif
8202
8203                                 header =
8204                                     (struct ieee80211_hdr_4addr *)(rxb->skb->
8205                                                                    data +
8206                                                                    IPW_RX_FRAME_SIZE);
8207                                 /* TODO: Check Ad-Hoc dest/source and make sure
8208                                  * that we are actually parsing these packets
8209                                  * correctly -- we should probably use the
8210                                  * frame control of the packet and disregard
8211                                  * the current iw_mode */
8212
8213                                 network_packet =
8214                                     is_network_packet(priv, header);
8215                                 if (network_packet && priv->assoc_network) {
8216                                         priv->assoc_network->stats.rssi =
8217                                             stats.rssi;
8218                                         priv->exp_avg_rssi =
8219                                             exponential_average(priv->exp_avg_rssi,
8220                                             stats.rssi, DEPTH_RSSI);
8221                                 }
8222
8223                                 IPW_DEBUG_RX("Frame: len=%u\n",
8224                                              le16_to_cpu(pkt->u.frame.length));
8225
8226                                 if (le16_to_cpu(pkt->u.frame.length) <
8227                                     ieee80211_get_hdrlen(le16_to_cpu(
8228                                                     header->frame_ctl))) {
8229                                         IPW_DEBUG_DROP
8230                                             ("Received packet is too small. "
8231                                              "Dropping.\n");
8232                                         priv->ieee->stats.rx_errors++;
8233                                         priv->wstats.discard.misc++;
8234                                         break;
8235                                 }
8236
8237                                 switch (WLAN_FC_GET_TYPE
8238                                         (le16_to_cpu(header->frame_ctl))) {
8239
8240                                 case IEEE80211_FTYPE_MGMT:
8241                                         ipw_handle_mgmt_packet(priv, rxb,
8242                                                                &stats);
8243                                         break;
8244
8245                                 case IEEE80211_FTYPE_CTL:
8246                                         break;
8247
8248                                 case IEEE80211_FTYPE_DATA:
8249                                         if (unlikely(!network_packet ||
8250                                                      is_duplicate_packet(priv,
8251                                                                          header)))
8252                                         {
8253                                                 IPW_DEBUG_DROP("Dropping: "
8254                                                                MAC_FMT ", "
8255                                                                MAC_FMT ", "
8256                                                                MAC_FMT "\n",
8257                                                                MAC_ARG(header->
8258                                                                        addr1),
8259                                                                MAC_ARG(header->
8260                                                                        addr2),
8261                                                                MAC_ARG(header->
8262                                                                        addr3));
8263                                                 break;
8264                                         }
8265
8266                                         ipw_handle_data_packet(priv, rxb,
8267                                                                &stats);
8268
8269                                         break;
8270                                 }
8271                                 break;
8272                         }
8273
8274                 case RX_HOST_NOTIFICATION_TYPE:{
8275                                 IPW_DEBUG_RX
8276                                     ("Notification: subtype=%02X flags=%02X size=%d\n",
8277                                      pkt->u.notification.subtype,
8278                                      pkt->u.notification.flags,
8279                                      pkt->u.notification.size);
8280                                 ipw_rx_notification(priv, &pkt->u.notification);
8281                                 break;
8282                         }
8283
8284                 default:
8285                         IPW_DEBUG_RX("Bad Rx packet of type %d\n",
8286                                      pkt->header.message_type);
8287                         break;
8288                 }
8289
8290                 /* For now we just don't re-use anything.  We can tweak this
8291                  * later to try and re-use notification packets and SKBs that
8292                  * fail to Rx correctly */
8293                 if (rxb->skb != NULL) {
8294                         dev_kfree_skb_any(rxb->skb);
8295                         rxb->skb = NULL;
8296                 }
8297
8298                 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
8299                                  IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
8300                 list_add_tail(&rxb->list, &priv->rxq->rx_used);
8301
8302                 i = (i + 1) % RX_QUEUE_SIZE;
8303         }
8304
8305         /* Backtrack one entry */
8306         priv->rxq->processed = (i ? i : RX_QUEUE_SIZE) - 1;
8307
8308         ipw_rx_queue_restock(priv);
8309 }
8310
8311 #define DEFAULT_RTS_THRESHOLD     2304U
8312 #define MIN_RTS_THRESHOLD         1U
8313 #define MAX_RTS_THRESHOLD         2304U
8314 #define DEFAULT_BEACON_INTERVAL   100U
8315 #define DEFAULT_SHORT_RETRY_LIMIT 7U
8316 #define DEFAULT_LONG_RETRY_LIMIT  4U
8317
8318 /**
8319  * ipw_sw_reset
8320  * @option: options to control different reset behaviour
8321  *          0 = reset everything except the 'disable' module_param
8322  *          1 = reset everything and print out driver info (for probe only)
8323  *          2 = reset everything
8324  */
8325 static int ipw_sw_reset(struct ipw_priv *priv, int option)
8326 {
8327         int band, modulation;
8328         int old_mode = priv->ieee->iw_mode;
8329
8330         /* Initialize module parameter values here */
8331         priv->config = 0;
8332
8333         /* We default to disabling the LED code as right now it causes
8334          * too many systems to lock up... */
8335         if (!led)
8336                 priv->config |= CFG_NO_LED;
8337
8338         if (associate)
8339                 priv->config |= CFG_ASSOCIATE;
8340         else
8341                 IPW_DEBUG_INFO("Auto associate disabled.\n");
8342
8343         if (auto_create)
8344                 priv->config |= CFG_ADHOC_CREATE;
8345         else
8346                 IPW_DEBUG_INFO("Auto adhoc creation disabled.\n");
8347
8348         priv->config &= ~CFG_STATIC_ESSID;
8349         priv->essid_len = 0;
8350         memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
8351
8352         if (disable && option) {
8353                 priv->status |= STATUS_RF_KILL_SW;
8354                 IPW_DEBUG_INFO("Radio disabled.\n");
8355         }
8356
8357         if (channel != 0) {
8358                 priv->config |= CFG_STATIC_CHANNEL;
8359                 priv->channel = channel;
8360                 IPW_DEBUG_INFO("Bind to static channel %d\n", channel);
8361                 /* TODO: Validate that provided channel is in range */
8362         }
8363 #ifdef CONFIG_IPW2200_QOS
8364         ipw_qos_init(priv, qos_enable, qos_burst_enable,
8365                      burst_duration_CCK, burst_duration_OFDM);
8366 #endif                          /* CONFIG_IPW2200_QOS */
8367
8368         switch (mode) {
8369         case 1:
8370                 priv->ieee->iw_mode = IW_MODE_ADHOC;
8371                 priv->net_dev->type = ARPHRD_ETHER;
8372
8373                 break;
8374 #ifdef CONFIG_IPW2200_MONITOR
8375         case 2:
8376                 priv->ieee->iw_mode = IW_MODE_MONITOR;
8377 #ifdef CONFIG_IPW2200_RADIOTAP
8378                 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8379 #else
8380                 priv->net_dev->type = ARPHRD_IEEE80211;
8381 #endif
8382                 break;
8383 #endif
8384         default:
8385         case 0:
8386                 priv->net_dev->type = ARPHRD_ETHER;
8387                 priv->ieee->iw_mode = IW_MODE_INFRA;
8388                 break;
8389         }
8390
8391         if (hwcrypto) {
8392                 priv->ieee->host_encrypt = 0;
8393                 priv->ieee->host_encrypt_msdu = 0;
8394                 priv->ieee->host_decrypt = 0;
8395                 priv->ieee->host_mc_decrypt = 0;
8396         }
8397         IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off");
8398
8399         /* IPW2200/2915 is abled to do hardware fragmentation. */
8400         priv->ieee->host_open_frag = 0;
8401
8402         if ((priv->pci_dev->device == 0x4223) ||
8403             (priv->pci_dev->device == 0x4224)) {
8404                 if (option == 1)
8405                         printk(KERN_INFO DRV_NAME
8406                                ": Detected Intel PRO/Wireless 2915ABG Network "
8407                                "Connection\n");
8408                 priv->ieee->abg_true = 1;
8409                 band = IEEE80211_52GHZ_BAND | IEEE80211_24GHZ_BAND;
8410                 modulation = IEEE80211_OFDM_MODULATION |
8411                     IEEE80211_CCK_MODULATION;
8412                 priv->adapter = IPW_2915ABG;
8413                 priv->ieee->mode = IEEE_A | IEEE_G | IEEE_B;
8414         } else {
8415                 if (option == 1)
8416                         printk(KERN_INFO DRV_NAME
8417                                ": Detected Intel PRO/Wireless 2200BG Network "
8418                                "Connection\n");
8419
8420                 priv->ieee->abg_true = 0;
8421                 band = IEEE80211_24GHZ_BAND;
8422                 modulation = IEEE80211_OFDM_MODULATION |
8423                     IEEE80211_CCK_MODULATION;
8424                 priv->adapter = IPW_2200BG;
8425                 priv->ieee->mode = IEEE_G | IEEE_B;
8426         }
8427
8428         priv->ieee->freq_band = band;
8429         priv->ieee->modulation = modulation;
8430
8431         priv->rates_mask = IEEE80211_DEFAULT_RATES_MASK;
8432
8433         priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
8434         priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
8435
8436         priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
8437         priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
8438         priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
8439
8440         /* If power management is turned on, default to AC mode */
8441         priv->power_mode = IPW_POWER_AC;
8442         priv->tx_power = IPW_TX_POWER_DEFAULT;
8443
8444         return old_mode == priv->ieee->iw_mode;
8445 }
8446
8447 /*
8448  * This file defines the Wireless Extension handlers.  It does not
8449  * define any methods of hardware manipulation and relies on the
8450  * functions defined in ipw_main to provide the HW interaction.
8451  *
8452  * The exception to this is the use of the ipw_get_ordinal()
8453  * function used to poll the hardware vs. making unecessary calls.
8454  *
8455  */
8456
8457 static int ipw_wx_get_name(struct net_device *dev,
8458                            struct iw_request_info *info,
8459                            union iwreq_data *wrqu, char *extra)
8460 {
8461         struct ipw_priv *priv = ieee80211_priv(dev);
8462         mutex_lock(&priv->mutex);
8463         if (priv->status & STATUS_RF_KILL_MASK)
8464                 strcpy(wrqu->name, "radio off");
8465         else if (!(priv->status & STATUS_ASSOCIATED))
8466                 strcpy(wrqu->name, "unassociated");
8467         else
8468                 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11%c",
8469                          ipw_modes[priv->assoc_request.ieee_mode]);
8470         IPW_DEBUG_WX("Name: %s\n", wrqu->name);
8471         mutex_unlock(&priv->mutex);
8472         return 0;
8473 }
8474
8475 static int ipw_set_channel(struct ipw_priv *priv, u8 channel)
8476 {
8477         if (channel == 0) {
8478                 IPW_DEBUG_INFO("Setting channel to ANY (0)\n");
8479                 priv->config &= ~CFG_STATIC_CHANNEL;
8480                 IPW_DEBUG_ASSOC("Attempting to associate with new "
8481                                 "parameters.\n");
8482                 ipw_associate(priv);
8483                 return 0;
8484         }
8485
8486         priv->config |= CFG_STATIC_CHANNEL;
8487
8488         if (priv->channel == channel) {
8489                 IPW_DEBUG_INFO("Request to set channel to current value (%d)\n",
8490                                channel);
8491                 return 0;
8492         }
8493
8494         IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel);
8495         priv->channel = channel;
8496
8497 #ifdef CONFIG_IPW2200_MONITOR
8498         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8499                 int i;
8500                 if (priv->status & STATUS_SCANNING) {
8501                         IPW_DEBUG_SCAN("Scan abort triggered due to "
8502                                        "channel change.\n");
8503                         ipw_abort_scan(priv);
8504                 }
8505
8506                 for (i = 1000; i && (priv->status & STATUS_SCANNING); i--)
8507                         udelay(10);
8508
8509                 if (priv->status & STATUS_SCANNING)
8510                         IPW_DEBUG_SCAN("Still scanning...\n");
8511                 else
8512                         IPW_DEBUG_SCAN("Took %dms to abort current scan\n",
8513                                        1000 - i);
8514
8515                 return 0;
8516         }
8517 #endif                          /* CONFIG_IPW2200_MONITOR */
8518
8519         /* Network configuration changed -- force [re]association */
8520         IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n");
8521         if (!ipw_disassociate(priv))
8522                 ipw_associate(priv);
8523
8524         return 0;
8525 }
8526
8527 static int ipw_wx_set_freq(struct net_device *dev,
8528                            struct iw_request_info *info,
8529                            union iwreq_data *wrqu, char *extra)
8530 {
8531         struct ipw_priv *priv = ieee80211_priv(dev);
8532         const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
8533         struct iw_freq *fwrq = &wrqu->freq;
8534         int ret = 0, i;
8535         u8 channel, flags;
8536         int band;
8537
8538         if (fwrq->m == 0) {
8539                 IPW_DEBUG_WX("SET Freq/Channel -> any\n");
8540                 mutex_lock(&priv->mutex);
8541                 ret = ipw_set_channel(priv, 0);
8542                 mutex_unlock(&priv->mutex);
8543                 return ret;
8544         }
8545         /* if setting by freq convert to channel */
8546         if (fwrq->e == 1) {
8547                 channel = ieee80211_freq_to_channel(priv->ieee, fwrq->m);
8548                 if (channel == 0)
8549                         return -EINVAL;
8550         } else
8551                 channel = fwrq->m;
8552
8553         if (!(band = ieee80211_is_valid_channel(priv->ieee, channel)))
8554                 return -EINVAL;
8555
8556         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
8557                 i = ieee80211_channel_to_index(priv->ieee, channel);
8558                 if (i == -1)
8559                         return -EINVAL;
8560
8561                 flags = (band == IEEE80211_24GHZ_BAND) ?
8562                     geo->bg[i].flags : geo->a[i].flags;
8563                 if (flags & IEEE80211_CH_PASSIVE_ONLY) {
8564                         IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n");
8565                         return -EINVAL;
8566                 }
8567         }
8568
8569         IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
8570         mutex_lock(&priv->mutex);
8571         ret = ipw_set_channel(priv, channel);
8572         mutex_unlock(&priv->mutex);
8573         return ret;
8574 }
8575
8576 static int ipw_wx_get_freq(struct net_device *dev,
8577                            struct iw_request_info *info,
8578                            union iwreq_data *wrqu, char *extra)
8579 {
8580         struct ipw_priv *priv = ieee80211_priv(dev);
8581
8582         wrqu->freq.e = 0;
8583
8584         /* If we are associated, trying to associate, or have a statically
8585          * configured CHANNEL then return that; otherwise return ANY */
8586         mutex_lock(&priv->mutex);
8587         if (priv->config & CFG_STATIC_CHANNEL ||
8588             priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) {
8589                 int i;
8590
8591                 i = ieee80211_channel_to_index(priv->ieee, priv->channel);
8592                 BUG_ON(i == -1);
8593                 wrqu->freq.e = 1;
8594
8595                 switch (ieee80211_is_valid_channel(priv->ieee, priv->channel)) {
8596                 case IEEE80211_52GHZ_BAND:
8597                         wrqu->freq.m = priv->ieee->geo.a[i].freq * 100000;
8598                         break;
8599
8600                 case IEEE80211_24GHZ_BAND:
8601                         wrqu->freq.m = priv->ieee->geo.bg[i].freq * 100000;
8602                         break;
8603
8604                 default:
8605                         BUG();
8606                 }
8607         } else
8608                 wrqu->freq.m = 0;
8609
8610         mutex_unlock(&priv->mutex);
8611         IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
8612         return 0;
8613 }
8614
8615 static int ipw_wx_set_mode(struct net_device *dev,
8616                            struct iw_request_info *info,
8617                            union iwreq_data *wrqu, char *extra)
8618 {
8619         struct ipw_priv *priv = ieee80211_priv(dev);
8620         int err = 0;
8621
8622         IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode);
8623
8624         switch (wrqu->mode) {
8625 #ifdef CONFIG_IPW2200_MONITOR
8626         case IW_MODE_MONITOR:
8627 #endif
8628         case IW_MODE_ADHOC:
8629         case IW_MODE_INFRA:
8630                 break;
8631         case IW_MODE_AUTO:
8632                 wrqu->mode = IW_MODE_INFRA;
8633                 break;
8634         default:
8635                 return -EINVAL;
8636         }
8637         if (wrqu->mode == priv->ieee->iw_mode)
8638                 return 0;
8639
8640         mutex_lock(&priv->mutex);
8641
8642         ipw_sw_reset(priv, 0);
8643
8644 #ifdef CONFIG_IPW2200_MONITOR
8645         if (priv->ieee->iw_mode == IW_MODE_MONITOR)
8646                 priv->net_dev->type = ARPHRD_ETHER;
8647
8648         if (wrqu->mode == IW_MODE_MONITOR)
8649 #ifdef CONFIG_IPW2200_RADIOTAP
8650                 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8651 #else
8652                 priv->net_dev->type = ARPHRD_IEEE80211;
8653 #endif
8654 #endif                          /* CONFIG_IPW2200_MONITOR */
8655
8656         /* Free the existing firmware and reset the fw_loaded
8657          * flag so ipw_load() will bring in the new firmawre */
8658         free_firmware();
8659
8660         priv->ieee->iw_mode = wrqu->mode;
8661
8662         queue_work(priv->workqueue, &priv->adapter_restart);
8663         mutex_unlock(&priv->mutex);
8664         return err;
8665 }
8666
8667 static int ipw_wx_get_mode(struct net_device *dev,
8668                            struct iw_request_info *info,
8669                            union iwreq_data *wrqu, char *extra)
8670 {
8671         struct ipw_priv *priv = ieee80211_priv(dev);
8672         mutex_lock(&priv->mutex);
8673         wrqu->mode = priv->ieee->iw_mode;
8674         IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode);
8675         mutex_unlock(&priv->mutex);
8676         return 0;
8677 }
8678
8679 /* Values are in microsecond */
8680 static const s32 timeout_duration[] = {
8681         350000,
8682         250000,
8683         75000,
8684         37000,
8685         25000,
8686 };
8687
8688 static const s32 period_duration[] = {
8689         400000,
8690         700000,
8691         1000000,
8692         1000000,
8693         1000000
8694 };
8695
8696 static int ipw_wx_get_range(struct net_device *dev,
8697                             struct iw_request_info *info,
8698                             union iwreq_data *wrqu, char *extra)
8699 {
8700         struct ipw_priv *priv = ieee80211_priv(dev);
8701         struct iw_range *range = (struct iw_range *)extra;
8702         const struct ieee80211_geo *geo = ieee80211_get_geo(priv->ieee);
8703         int i = 0, j;
8704
8705         wrqu->data.length = sizeof(*range);
8706         memset(range, 0, sizeof(*range));
8707
8708         /* 54Mbs == ~27 Mb/s real (802.11g) */
8709         range->throughput = 27 * 1000 * 1000;
8710
8711         range->max_qual.qual = 100;
8712         /* TODO: Find real max RSSI and stick here */
8713         range->max_qual.level = 0;
8714         range->max_qual.noise = 0;
8715         range->max_qual.updated = 7;    /* Updated all three */
8716
8717         range->avg_qual.qual = 70;
8718         /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
8719         range->avg_qual.level = 0;      /* FIXME to real average level */
8720         range->avg_qual.noise = 0;
8721         range->avg_qual.updated = 7;    /* Updated all three */
8722         mutex_lock(&priv->mutex);
8723         range->num_bitrates = min(priv->rates.num_rates, (u8) IW_MAX_BITRATES);
8724
8725         for (i = 0; i < range->num_bitrates; i++)
8726                 range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) *
8727                     500000;
8728
8729         range->max_rts = DEFAULT_RTS_THRESHOLD;
8730         range->min_frag = MIN_FRAG_THRESHOLD;
8731         range->max_frag = MAX_FRAG_THRESHOLD;
8732
8733         range->encoding_size[0] = 5;
8734         range->encoding_size[1] = 13;
8735         range->num_encoding_sizes = 2;
8736         range->max_encoding_tokens = WEP_KEYS;
8737
8738         /* Set the Wireless Extension versions */
8739         range->we_version_compiled = WIRELESS_EXT;
8740         range->we_version_source = 18;
8741
8742         i = 0;
8743         if (priv->ieee->mode & (IEEE_B | IEEE_G)) {
8744                 for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES; j++) {
8745                         if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8746                             (geo->bg[j].flags & IEEE80211_CH_PASSIVE_ONLY))
8747                                 continue;
8748
8749                         range->freq[i].i = geo->bg[j].channel;
8750                         range->freq[i].m = geo->bg[j].freq * 100000;
8751                         range->freq[i].e = 1;
8752                         i++;
8753                 }
8754         }
8755
8756         if (priv->ieee->mode & IEEE_A) {
8757                 for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES; j++) {
8758                         if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
8759                             (geo->a[j].flags & IEEE80211_CH_PASSIVE_ONLY))
8760                                 continue;
8761
8762                         range->freq[i].i = geo->a[j].channel;
8763                         range->freq[i].m = geo->a[j].freq * 100000;
8764                         range->freq[i].e = 1;
8765                         i++;
8766                 }
8767         }
8768
8769         range->num_channels = i;
8770         range->num_frequency = i;
8771
8772         mutex_unlock(&priv->mutex);
8773
8774         /* Event capability (kernel + driver) */
8775         range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
8776                                 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
8777                                 IW_EVENT_CAPA_MASK(SIOCGIWAP) |
8778                                 IW_EVENT_CAPA_MASK(SIOCGIWSCAN));
8779         range->event_capa[1] = IW_EVENT_CAPA_K_1;
8780
8781         range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
8782                 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
8783
8784         IPW_DEBUG_WX("GET Range\n");
8785         return 0;
8786 }
8787
8788 static int ipw_wx_set_wap(struct net_device *dev,
8789                           struct iw_request_info *info,
8790                           union iwreq_data *wrqu, char *extra)
8791 {
8792         struct ipw_priv *priv = ieee80211_priv(dev);
8793
8794         static const unsigned char any[] = {
8795                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
8796         };
8797         static const unsigned char off[] = {
8798                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
8799         };
8800
8801         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
8802                 return -EINVAL;
8803         mutex_lock(&priv->mutex);
8804         if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
8805             !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
8806                 /* we disable mandatory BSSID association */
8807                 IPW_DEBUG_WX("Setting AP BSSID to ANY\n");
8808                 priv->config &= ~CFG_STATIC_BSSID;
8809                 IPW_DEBUG_ASSOC("Attempting to associate with new "
8810                                 "parameters.\n");
8811                 ipw_associate(priv);
8812                 mutex_unlock(&priv->mutex);
8813                 return 0;
8814         }
8815
8816         priv->config |= CFG_STATIC_BSSID;
8817         if (!memcmp(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN)) {
8818                 IPW_DEBUG_WX("BSSID set to current BSSID.\n");
8819                 mutex_unlock(&priv->mutex);
8820                 return 0;
8821         }
8822
8823         IPW_DEBUG_WX("Setting mandatory BSSID to " MAC_FMT "\n",
8824                      MAC_ARG(wrqu->ap_addr.sa_data));
8825
8826         memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
8827
8828         /* Network configuration changed -- force [re]association */
8829         IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n");
8830         if (!ipw_disassociate(priv))
8831                 ipw_associate(priv);
8832
8833         mutex_unlock(&priv->mutex);
8834         return 0;
8835 }
8836
8837 static int ipw_wx_get_wap(struct net_device *dev,
8838                           struct iw_request_info *info,
8839                           union iwreq_data *wrqu, char *extra)
8840 {
8841         struct ipw_priv *priv = ieee80211_priv(dev);
8842         /* If we are associated, trying to associate, or have a statically
8843          * configured BSSID then return that; otherwise return ANY */
8844         mutex_lock(&priv->mutex);
8845         if (priv->config & CFG_STATIC_BSSID ||
8846             priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
8847                 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
8848                 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
8849         } else
8850                 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
8851
8852         IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n",
8853                      MAC_ARG(wrqu->ap_addr.sa_data));
8854         mutex_unlock(&priv->mutex);
8855         return 0;
8856 }
8857
8858 static int ipw_wx_set_essid(struct net_device *dev,
8859                             struct iw_request_info *info,
8860                             union iwreq_data *wrqu, char *extra)
8861 {
8862         struct ipw_priv *priv = ieee80211_priv(dev);
8863         int length;
8864
8865         mutex_lock(&priv->mutex);
8866
8867         if (!wrqu->essid.flags)
8868         {
8869                 IPW_DEBUG_WX("Setting ESSID to ANY\n");
8870                 ipw_disassociate(priv);
8871                 priv->config &= ~CFG_STATIC_ESSID;
8872                 ipw_associate(priv);
8873                 mutex_unlock(&priv->mutex);
8874                 return 0;
8875         }
8876
8877         length = min((int)wrqu->essid.length, IW_ESSID_MAX_SIZE);
8878         if (!extra[length - 1])
8879                 length--;
8880
8881         priv->config |= CFG_STATIC_ESSID;
8882
8883         if (priv->essid_len == length && !memcmp(priv->essid, extra, length)
8884             && (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING))) {
8885                 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
8886                 mutex_unlock(&priv->mutex);
8887                 return 0;
8888         }
8889
8890         IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(extra, length),
8891                      length);
8892
8893         priv->essid_len = length;
8894         memcpy(priv->essid, extra, priv->essid_len);
8895
8896         /* Network configuration changed -- force [re]association */
8897         IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n");
8898         if (!ipw_disassociate(priv))
8899                 ipw_associate(priv);
8900
8901         mutex_unlock(&priv->mutex);
8902         return 0;
8903 }
8904
8905 static int ipw_wx_get_essid(struct net_device *dev,
8906                             struct iw_request_info *info,
8907                             union iwreq_data *wrqu, char *extra)
8908 {
8909         struct ipw_priv *priv = ieee80211_priv(dev);
8910
8911         /* If we are associated, trying to associate, or have a statically
8912          * configured ESSID then return that; otherwise return ANY */
8913         mutex_lock(&priv->mutex);
8914         if (priv->config & CFG_STATIC_ESSID ||
8915             priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
8916                 IPW_DEBUG_WX("Getting essid: '%s'\n",
8917                              escape_essid(priv->essid, priv->essid_len));
8918                 memcpy(extra, priv->essid, priv->essid_len);
8919                 wrqu->essid.length = priv->essid_len;
8920                 wrqu->essid.flags = 1;  /* active */
8921         } else {
8922                 IPW_DEBUG_WX("Getting essid: ANY\n");
8923                 wrqu->essid.length = 0;
8924                 wrqu->essid.flags = 0;  /* active */
8925         }
8926         mutex_unlock(&priv->mutex);
8927         return 0;
8928 }
8929
8930 static int ipw_wx_set_nick(struct net_device *dev,
8931                            struct iw_request_info *info,
8932                            union iwreq_data *wrqu, char *extra)
8933 {
8934         struct ipw_priv *priv = ieee80211_priv(dev);
8935
8936         IPW_DEBUG_WX("Setting nick to '%s'\n", extra);
8937         if (wrqu->data.length > IW_ESSID_MAX_SIZE)
8938                 return -E2BIG;
8939         mutex_lock(&priv->mutex);
8940         wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick));
8941         memset(priv->nick, 0, sizeof(priv->nick));
8942         memcpy(priv->nick, extra, wrqu->data.length);
8943         IPW_DEBUG_TRACE("<<\n");
8944         mutex_unlock(&priv->mutex);
8945         return 0;
8946
8947 }
8948
8949 static int ipw_wx_get_nick(struct net_device *dev,
8950                            struct iw_request_info *info,
8951                            union iwreq_data *wrqu, char *extra)
8952 {
8953         struct ipw_priv *priv = ieee80211_priv(dev);
8954         IPW_DEBUG_WX("Getting nick\n");
8955         mutex_lock(&priv->mutex);
8956         wrqu->data.length = strlen(priv->nick) + 1;
8957         memcpy(extra, priv->nick, wrqu->data.length);
8958         wrqu->data.flags = 1;   /* active */
8959         mutex_unlock(&priv->mutex);
8960         return 0;
8961 }
8962
8963 static int ipw_wx_set_sens(struct net_device *dev,
8964                             struct iw_request_info *info,
8965                             union iwreq_data *wrqu, char *extra)
8966 {
8967         struct ipw_priv *priv = ieee80211_priv(dev);
8968         int err = 0;
8969
8970         IPW_DEBUG_WX("Setting roaming threshold to %d\n", wrqu->sens.value);
8971         IPW_DEBUG_WX("Setting disassociate threshold to %d\n", 3*wrqu->sens.value);
8972         mutex_lock(&priv->mutex);
8973
8974         if (wrqu->sens.fixed == 0)
8975         {
8976                 priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
8977                 priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
8978                 goto out;
8979         }
8980         if ((wrqu->sens.value > IPW_MB_ROAMING_THRESHOLD_MAX) ||
8981             (wrqu->sens.value < IPW_MB_ROAMING_THRESHOLD_MIN)) {
8982                 err = -EINVAL;
8983                 goto out;
8984         }
8985
8986         priv->roaming_threshold = wrqu->sens.value;
8987         priv->disassociate_threshold = 3*wrqu->sens.value;
8988       out:
8989         mutex_unlock(&priv->mutex);
8990         return err;
8991 }
8992
8993 static int ipw_wx_get_sens(struct net_device *dev,
8994                             struct iw_request_info *info,
8995                             union iwreq_data *wrqu, char *extra)
8996 {
8997         struct ipw_priv *priv = ieee80211_priv(dev);
8998         mutex_lock(&priv->mutex);
8999         wrqu->sens.fixed = 1;
9000         wrqu->sens.value = priv->roaming_threshold;
9001         mutex_unlock(&priv->mutex);
9002
9003         IPW_DEBUG_WX("GET roaming threshold -> %s %d \n",
9004                      wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9005
9006         return 0;
9007 }
9008
9009 static int ipw_wx_set_rate(struct net_device *dev,
9010                            struct iw_request_info *info,
9011                            union iwreq_data *wrqu, char *extra)
9012 {
9013         /* TODO: We should use semaphores or locks for access to priv */
9014         struct ipw_priv *priv = ieee80211_priv(dev);
9015         u32 target_rate = wrqu->bitrate.value;
9016         u32 fixed, mask;
9017
9018         /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */
9019         /* value = X, fixed = 1 means only rate X */
9020         /* value = X, fixed = 0 means all rates lower equal X */
9021
9022         if (target_rate == -1) {
9023                 fixed = 0;
9024                 mask = IEEE80211_DEFAULT_RATES_MASK;
9025                 /* Now we should reassociate */
9026                 goto apply;
9027         }
9028
9029         mask = 0;
9030         fixed = wrqu->bitrate.fixed;
9031
9032         if (target_rate == 1000000 || !fixed)
9033                 mask |= IEEE80211_CCK_RATE_1MB_MASK;
9034         if (target_rate == 1000000)
9035                 goto apply;
9036
9037         if (target_rate == 2000000 || !fixed)
9038                 mask |= IEEE80211_CCK_RATE_2MB_MASK;
9039         if (target_rate == 2000000)
9040                 goto apply;
9041
9042         if (target_rate == 5500000 || !fixed)
9043                 mask |= IEEE80211_CCK_RATE_5MB_MASK;
9044         if (target_rate == 5500000)
9045                 goto apply;
9046
9047         if (target_rate == 6000000 || !fixed)
9048                 mask |= IEEE80211_OFDM_RATE_6MB_MASK;
9049         if (target_rate == 6000000)
9050                 goto apply;
9051
9052         if (target_rate == 9000000 || !fixed)
9053                 mask |= IEEE80211_OFDM_RATE_9MB_MASK;
9054         if (target_rate == 9000000)
9055                 goto apply;
9056
9057         if (target_rate == 11000000 || !fixed)
9058                 mask |= IEEE80211_CCK_RATE_11MB_MASK;
9059         if (target_rate == 11000000)
9060                 goto apply;
9061
9062         if (target_rate == 12000000 || !fixed)
9063                 mask |= IEEE80211_OFDM_RATE_12MB_MASK;
9064         if (target_rate == 12000000)
9065                 goto apply;
9066
9067         if (target_rate == 18000000 || !fixed)
9068                 mask |= IEEE80211_OFDM_RATE_18MB_MASK;
9069         if (target_rate == 18000000)
9070                 goto apply;
9071
9072         if (target_rate == 24000000 || !fixed)
9073                 mask |= IEEE80211_OFDM_RATE_24MB_MASK;
9074         if (target_rate == 24000000)
9075                 goto apply;
9076
9077         if (target_rate == 36000000 || !fixed)
9078                 mask |= IEEE80211_OFDM_RATE_36MB_MASK;
9079         if (target_rate == 36000000)
9080                 goto apply;
9081
9082         if (target_rate == 48000000 || !fixed)
9083                 mask |= IEEE80211_OFDM_RATE_48MB_MASK;
9084         if (target_rate == 48000000)
9085                 goto apply;
9086
9087         if (target_rate == 54000000 || !fixed)
9088                 mask |= IEEE80211_OFDM_RATE_54MB_MASK;
9089         if (target_rate == 54000000)
9090                 goto apply;
9091
9092         IPW_DEBUG_WX("invalid rate specified, returning error\n");
9093         return -EINVAL;
9094
9095       apply:
9096         IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n",
9097                      mask, fixed ? "fixed" : "sub-rates");
9098         mutex_lock(&priv->mutex);
9099         if (mask == IEEE80211_DEFAULT_RATES_MASK) {
9100                 priv->config &= ~CFG_FIXED_RATE;
9101                 ipw_set_fixed_rate(priv, priv->ieee->mode);
9102         } else
9103                 priv->config |= CFG_FIXED_RATE;
9104
9105         if (priv->rates_mask == mask) {
9106                 IPW_DEBUG_WX("Mask set to current mask.\n");
9107                 mutex_unlock(&priv->mutex);
9108                 return 0;
9109         }
9110
9111         priv->rates_mask = mask;
9112
9113         /* Network configuration changed -- force [re]association */
9114         IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n");
9115         if (!ipw_disassociate(priv))
9116                 ipw_associate(priv);
9117
9118         mutex_unlock(&priv->mutex);
9119         return 0;
9120 }
9121
9122 static int ipw_wx_get_rate(struct net_device *dev,
9123                            struct iw_request_info *info,
9124                            union iwreq_data *wrqu, char *extra)
9125 {
9126         struct ipw_priv *priv = ieee80211_priv(dev);
9127         mutex_lock(&priv->mutex);
9128         wrqu->bitrate.value = priv->last_rate;
9129         wrqu->bitrate.fixed = (priv->config & CFG_FIXED_RATE) ? 1 : 0;
9130         mutex_unlock(&priv->mutex);
9131         IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
9132         return 0;
9133 }
9134
9135 static int ipw_wx_set_rts(struct net_device *dev,
9136                           struct iw_request_info *info,
9137                           union iwreq_data *wrqu, char *extra)
9138 {
9139         struct ipw_priv *priv = ieee80211_priv(dev);
9140         mutex_lock(&priv->mutex);
9141         if (wrqu->rts.disabled)
9142                 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
9143         else {
9144                 if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
9145                     wrqu->rts.value > MAX_RTS_THRESHOLD) {
9146                         mutex_unlock(&priv->mutex);
9147                         return -EINVAL;
9148                 }
9149                 priv->rts_threshold = wrqu->rts.value;
9150         }
9151
9152         ipw_send_rts_threshold(priv, priv->rts_threshold);
9153         mutex_unlock(&priv->mutex);
9154         IPW_DEBUG_WX("SET RTS Threshold -> %d \n", priv->rts_threshold);
9155         return 0;
9156 }
9157
9158 static int ipw_wx_get_rts(struct net_device *dev,
9159                           struct iw_request_info *info,
9160                           union iwreq_data *wrqu, char *extra)
9161 {
9162         struct ipw_priv *priv = ieee80211_priv(dev);
9163         mutex_lock(&priv->mutex);
9164         wrqu->rts.value = priv->rts_threshold;
9165         wrqu->rts.fixed = 0;    /* no auto select */
9166         wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
9167         mutex_unlock(&priv->mutex);
9168         IPW_DEBUG_WX("GET RTS Threshold -> %d \n", wrqu->rts.value);
9169         return 0;
9170 }
9171
9172 static int ipw_wx_set_txpow(struct net_device *dev,
9173                             struct iw_request_info *info,
9174                             union iwreq_data *wrqu, char *extra)
9175 {
9176         struct ipw_priv *priv = ieee80211_priv(dev);
9177         int err = 0;
9178
9179         mutex_lock(&priv->mutex);
9180         if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) {
9181                 err = -EINPROGRESS;
9182                 goto out;
9183         }
9184
9185         if (!wrqu->power.fixed)
9186                 wrqu->power.value = IPW_TX_POWER_DEFAULT;
9187
9188         if (wrqu->power.flags != IW_TXPOW_DBM) {
9189                 err = -EINVAL;
9190                 goto out;
9191         }
9192
9193         if ((wrqu->power.value > IPW_TX_POWER_MAX) ||
9194             (wrqu->power.value < IPW_TX_POWER_MIN)) {
9195                 err = -EINVAL;
9196                 goto out;
9197         }
9198
9199         priv->tx_power = wrqu->power.value;
9200         err = ipw_set_tx_power(priv);
9201       out:
9202         mutex_unlock(&priv->mutex);
9203         return err;
9204 }
9205
9206 static int ipw_wx_get_txpow(struct net_device *dev,
9207                             struct iw_request_info *info,
9208                             union iwreq_data *wrqu, char *extra)
9209 {
9210         struct ipw_priv *priv = ieee80211_priv(dev);
9211         mutex_lock(&priv->mutex);
9212         wrqu->power.value = priv->tx_power;
9213         wrqu->power.fixed = 1;
9214         wrqu->power.flags = IW_TXPOW_DBM;
9215         wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
9216         mutex_unlock(&priv->mutex);
9217
9218         IPW_DEBUG_WX("GET TX Power -> %s %d \n",
9219                      wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
9220
9221         return 0;
9222 }
9223
9224 static int ipw_wx_set_frag(struct net_device *dev,
9225                            struct iw_request_info *info,
9226                            union iwreq_data *wrqu, char *extra)
9227 {
9228         struct ipw_priv *priv = ieee80211_priv(dev);
9229         mutex_lock(&priv->mutex);
9230         if (wrqu->frag.disabled)
9231                 priv->ieee->fts = DEFAULT_FTS;
9232         else {
9233                 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
9234                     wrqu->frag.value > MAX_FRAG_THRESHOLD) {
9235                         mutex_unlock(&priv->mutex);
9236                         return -EINVAL;
9237                 }
9238
9239                 priv->ieee->fts = wrqu->frag.value & ~0x1;
9240         }
9241
9242         ipw_send_frag_threshold(priv, wrqu->frag.value);
9243         mutex_unlock(&priv->mutex);
9244         IPW_DEBUG_WX("SET Frag Threshold -> %d \n", wrqu->frag.value);
9245         return 0;
9246 }
9247
9248 static int ipw_wx_get_frag(struct net_device *dev,
9249                            struct iw_request_info *info,
9250                            union iwreq_data *wrqu, char *extra)
9251 {
9252         struct ipw_priv *priv = ieee80211_priv(dev);
9253         mutex_lock(&priv->mutex);
9254         wrqu->frag.value = priv->ieee->fts;
9255         wrqu->frag.fixed = 0;   /* no auto select */
9256         wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FTS);
9257         mutex_unlock(&priv->mutex);
9258         IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
9259
9260         return 0;
9261 }
9262
9263 static int ipw_wx_set_retry(struct net_device *dev,
9264                             struct iw_request_info *info,
9265                             union iwreq_data *wrqu, char *extra)
9266 {
9267         struct ipw_priv *priv = ieee80211_priv(dev);
9268
9269         if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
9270                 return -EINVAL;
9271
9272         if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
9273                 return 0;
9274
9275         if (wrqu->retry.value < 0 || wrqu->retry.value >= 255)
9276                 return -EINVAL;
9277
9278         mutex_lock(&priv->mutex);
9279         if (wrqu->retry.flags & IW_RETRY_MIN)
9280                 priv->short_retry_limit = (u8) wrqu->retry.value;
9281         else if (wrqu->retry.flags & IW_RETRY_MAX)
9282                 priv->long_retry_limit = (u8) wrqu->retry.value;
9283         else {
9284                 priv->short_retry_limit = (u8) wrqu->retry.value;
9285                 priv->long_retry_limit = (u8) wrqu->retry.value;
9286         }
9287
9288         ipw_send_retry_limit(priv, priv->short_retry_limit,
9289                              priv->long_retry_limit);
9290         mutex_unlock(&priv->mutex);
9291         IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n",
9292                      priv->short_retry_limit, priv->long_retry_limit);
9293         return 0;
9294 }
9295
9296 static int ipw_wx_get_retry(struct net_device *dev,
9297                             struct iw_request_info *info,
9298                             union iwreq_data *wrqu, char *extra)
9299 {
9300         struct ipw_priv *priv = ieee80211_priv(dev);
9301
9302         mutex_lock(&priv->mutex);
9303         wrqu->retry.disabled = 0;
9304
9305         if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
9306                 mutex_unlock(&priv->mutex);
9307                 return -EINVAL;
9308         }
9309
9310         if (wrqu->retry.flags & IW_RETRY_MAX) {
9311                 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
9312                 wrqu->retry.value = priv->long_retry_limit;
9313         } else if (wrqu->retry.flags & IW_RETRY_MIN) {
9314                 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
9315                 wrqu->retry.value = priv->short_retry_limit;
9316         } else {
9317                 wrqu->retry.flags = IW_RETRY_LIMIT;
9318                 wrqu->retry.value = priv->short_retry_limit;
9319         }
9320         mutex_unlock(&priv->mutex);
9321
9322         IPW_DEBUG_WX("GET retry -> %d \n", wrqu->retry.value);
9323
9324         return 0;
9325 }
9326
9327 static int ipw_request_direct_scan(struct ipw_priv *priv, char *essid,
9328                                    int essid_len)
9329 {
9330         struct ipw_scan_request_ext scan;
9331         int err = 0, scan_type;
9332
9333         if (!(priv->status & STATUS_INIT) ||
9334             (priv->status & STATUS_EXIT_PENDING))
9335                 return 0;
9336
9337         mutex_lock(&priv->mutex);
9338
9339         if (priv->status & STATUS_RF_KILL_MASK) {
9340                 IPW_DEBUG_HC("Aborting scan due to RF kill activation\n");
9341                 priv->status |= STATUS_SCAN_PENDING;
9342                 goto done;
9343         }
9344
9345         IPW_DEBUG_HC("starting request direct scan!\n");
9346
9347         if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
9348                 /* We should not sleep here; otherwise we will block most
9349                  * of the system (for instance, we hold rtnl_lock when we
9350                  * get here).
9351                  */
9352                 err = -EAGAIN;
9353                 goto done;
9354         }
9355         memset(&scan, 0, sizeof(scan));
9356
9357         if (priv->config & CFG_SPEED_SCAN)
9358                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
9359                     cpu_to_le16(30);
9360         else
9361                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
9362                     cpu_to_le16(20);
9363
9364         scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] =
9365             cpu_to_le16(20);
9366         scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = cpu_to_le16(120);
9367         scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20);
9368
9369         scan.full_scan_index = cpu_to_le32(ieee80211_get_scans(priv->ieee));
9370
9371         err = ipw_send_ssid(priv, essid, essid_len);
9372         if (err) {
9373                 IPW_DEBUG_HC("Attempt to send SSID command failed\n");
9374                 goto done;
9375         }
9376         scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
9377
9378         ipw_add_scan_channels(priv, &scan, scan_type);
9379
9380         err = ipw_send_scan_request_ext(priv, &scan);
9381         if (err) {
9382                 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err);
9383                 goto done;
9384         }
9385
9386         priv->status |= STATUS_SCANNING;
9387
9388       done:
9389         mutex_unlock(&priv->mutex);
9390         return err;
9391 }
9392
9393 static int ipw_wx_set_scan(struct net_device *dev,
9394                            struct iw_request_info *info,
9395                            union iwreq_data *wrqu, char *extra)
9396 {
9397         struct ipw_priv *priv = ieee80211_priv(dev);
9398         struct iw_scan_req *req = (struct iw_scan_req *)extra;
9399
9400         if (wrqu->data.length == sizeof(struct iw_scan_req)) {
9401                 if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
9402                         ipw_request_direct_scan(priv, req->essid,
9403                                                 req->essid_len);
9404                         return 0;
9405                 }
9406                 if (req->scan_type == IW_SCAN_TYPE_PASSIVE) {
9407                         queue_work(priv->workqueue,
9408                                    &priv->request_passive_scan);
9409                         return 0;
9410                 }
9411         }
9412
9413         IPW_DEBUG_WX("Start scan\n");
9414
9415         queue_work(priv->workqueue, &priv->request_scan);
9416
9417         return 0;
9418 }
9419
9420 static int ipw_wx_get_scan(struct net_device *dev,
9421                            struct iw_request_info *info,
9422                            union iwreq_data *wrqu, char *extra)
9423 {
9424         struct ipw_priv *priv = ieee80211_priv(dev);
9425         return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
9426 }
9427
9428 static int ipw_wx_set_encode(struct net_device *dev,
9429                              struct iw_request_info *info,
9430                              union iwreq_data *wrqu, char *key)
9431 {
9432         struct ipw_priv *priv = ieee80211_priv(dev);
9433         int ret;
9434         u32 cap = priv->capability;
9435
9436         mutex_lock(&priv->mutex);
9437         ret = ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
9438
9439         /* In IBSS mode, we need to notify the firmware to update
9440          * the beacon info after we changed the capability. */
9441         if (cap != priv->capability &&
9442             priv->ieee->iw_mode == IW_MODE_ADHOC &&
9443             priv->status & STATUS_ASSOCIATED)
9444                 ipw_disassociate(priv);
9445
9446         mutex_unlock(&priv->mutex);
9447         return ret;
9448 }
9449
9450 static int ipw_wx_get_encode(struct net_device *dev,
9451                              struct iw_request_info *info,
9452                              union iwreq_data *wrqu, char *key)
9453 {
9454         struct ipw_priv *priv = ieee80211_priv(dev);
9455         return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
9456 }
9457
9458 static int ipw_wx_set_power(struct net_device *dev,
9459                             struct iw_request_info *info,
9460                             union iwreq_data *wrqu, char *extra)
9461 {
9462         struct ipw_priv *priv = ieee80211_priv(dev);
9463         int err;
9464         mutex_lock(&priv->mutex);
9465         if (wrqu->power.disabled) {
9466                 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
9467                 err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM);
9468                 if (err) {
9469                         IPW_DEBUG_WX("failed setting power mode.\n");
9470                         mutex_unlock(&priv->mutex);
9471                         return err;
9472                 }
9473                 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
9474                 mutex_unlock(&priv->mutex);
9475                 return 0;
9476         }
9477
9478         switch (wrqu->power.flags & IW_POWER_MODE) {
9479         case IW_POWER_ON:       /* If not specified */
9480         case IW_POWER_MODE:     /* If set all mask */
9481         case IW_POWER_ALL_R:    /* If explicitely state all */
9482                 break;
9483         default:                /* Otherwise we don't support it */
9484                 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
9485                              wrqu->power.flags);
9486                 mutex_unlock(&priv->mutex);
9487                 return -EOPNOTSUPP;
9488         }
9489
9490         /* If the user hasn't specified a power management mode yet, default
9491          * to BATTERY */
9492         if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC)
9493                 priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY;
9494         else
9495                 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
9496         err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
9497         if (err) {
9498                 IPW_DEBUG_WX("failed setting power mode.\n");
9499                 mutex_unlock(&priv->mutex);
9500                 return err;
9501         }
9502
9503         IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
9504         mutex_unlock(&priv->mutex);
9505         return 0;
9506 }
9507
9508 static int ipw_wx_get_power(struct net_device *dev,
9509                             struct iw_request_info *info,
9510                             union iwreq_data *wrqu, char *extra)
9511 {
9512         struct ipw_priv *priv = ieee80211_priv(dev);
9513         mutex_lock(&priv->mutex);
9514         if (!(priv->power_mode & IPW_POWER_ENABLED))
9515                 wrqu->power.disabled = 1;
9516         else
9517                 wrqu->power.disabled = 0;
9518
9519         mutex_unlock(&priv->mutex);
9520         IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
9521
9522         return 0;
9523 }
9524
9525 static int ipw_wx_set_powermode(struct net_device *dev,
9526                                 struct iw_request_info *info,
9527                                 union iwreq_data *wrqu, char *extra)
9528 {
9529         struct ipw_priv *priv = ieee80211_priv(dev);
9530         int mode = *(int *)extra;
9531         int err;
9532         mutex_lock(&priv->mutex);
9533         if ((mode < 1) || (mode > IPW_POWER_LIMIT)) {
9534                 mode = IPW_POWER_AC;
9535                 priv->power_mode = mode;
9536         } else {
9537                 priv->power_mode = IPW_POWER_ENABLED | mode;
9538         }
9539
9540         if (priv->power_mode != mode) {
9541                 err = ipw_send_power_mode(priv, mode);
9542
9543                 if (err) {
9544                         IPW_DEBUG_WX("failed setting power mode.\n");
9545                         mutex_unlock(&priv->mutex);
9546                         return err;
9547                 }
9548         }
9549         mutex_unlock(&priv->mutex);
9550         return 0;
9551 }
9552
9553 #define MAX_WX_STRING 80
9554 static int ipw_wx_get_powermode(struct net_device *dev,
9555                                 struct iw_request_info *info,
9556                                 union iwreq_data *wrqu, char *extra)
9557 {
9558         struct ipw_priv *priv = ieee80211_priv(dev);
9559         int level = IPW_POWER_LEVEL(priv->power_mode);
9560         char *p = extra;
9561
9562         p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level);
9563
9564         switch (level) {
9565         case IPW_POWER_AC:
9566                 p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)");
9567                 break;
9568         case IPW_POWER_BATTERY:
9569                 p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)");
9570                 break;
9571         default:
9572                 p += snprintf(p, MAX_WX_STRING - (p - extra),
9573                               "(Timeout %dms, Period %dms)",
9574                               timeout_duration[level - 1] / 1000,
9575                               period_duration[level - 1] / 1000);
9576         }
9577
9578         if (!(priv->power_mode & IPW_POWER_ENABLED))
9579                 p += snprintf(p, MAX_WX_STRING - (p - extra), " OFF");
9580
9581         wrqu->data.length = p - extra + 1;
9582
9583         return 0;
9584 }
9585
9586 static int ipw_wx_set_wireless_mode(struct net_device *dev,
9587                                     struct iw_request_info *info,
9588                                     union iwreq_data *wrqu, char *extra)
9589 {
9590         struct ipw_priv *priv = ieee80211_priv(dev);
9591         int mode = *(int *)extra;
9592         u8 band = 0, modulation = 0;
9593
9594         if (mode == 0 || mode & ~IEEE_MODE_MASK) {
9595                 IPW_WARNING("Attempt to set invalid wireless mode: %d\n", mode);
9596                 return -EINVAL;
9597         }
9598         mutex_lock(&priv->mutex);
9599         if (priv->adapter == IPW_2915ABG) {
9600                 priv->ieee->abg_true = 1;
9601                 if (mode & IEEE_A) {
9602                         band |= IEEE80211_52GHZ_BAND;
9603                         modulation |= IEEE80211_OFDM_MODULATION;
9604                 } else
9605                         priv->ieee->abg_true = 0;
9606         } else {
9607                 if (mode & IEEE_A) {
9608                         IPW_WARNING("Attempt to set 2200BG into "
9609                                     "802.11a mode\n");
9610                         mutex_unlock(&priv->mutex);
9611                         return -EINVAL;
9612                 }
9613
9614                 priv->ieee->abg_true = 0;
9615         }
9616
9617         if (mode & IEEE_B) {
9618                 band |= IEEE80211_24GHZ_BAND;
9619                 modulation |= IEEE80211_CCK_MODULATION;
9620         } else
9621                 priv->ieee->abg_true = 0;
9622
9623         if (mode & IEEE_G) {
9624                 band |= IEEE80211_24GHZ_BAND;
9625                 modulation |= IEEE80211_OFDM_MODULATION;
9626         } else
9627                 priv->ieee->abg_true = 0;
9628
9629         priv->ieee->mode = mode;
9630         priv->ieee->freq_band = band;
9631         priv->ieee->modulation = modulation;
9632         init_supported_rates(priv, &priv->rates);
9633
9634         /* Network configuration changed -- force [re]association */
9635         IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n");
9636         if (!ipw_disassociate(priv)) {
9637                 ipw_send_supported_rates(priv, &priv->rates);
9638                 ipw_associate(priv);
9639         }
9640
9641         /* Update the band LEDs */
9642         ipw_led_band_on(priv);
9643
9644         IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n",
9645                      mode & IEEE_A ? 'a' : '.',
9646                      mode & IEEE_B ? 'b' : '.', mode & IEEE_G ? 'g' : '.');
9647         mutex_unlock(&priv->mutex);
9648         return 0;
9649 }
9650
9651 static int ipw_wx_get_wireless_mode(struct net_device *dev,
9652                                     struct iw_request_info *info,
9653                                     union iwreq_data *wrqu, char *extra)
9654 {
9655         struct ipw_priv *priv = ieee80211_priv(dev);
9656         mutex_lock(&priv->mutex);
9657         switch (priv->ieee->mode) {
9658         case IEEE_A:
9659                 strncpy(extra, "802.11a (1)", MAX_WX_STRING);
9660                 break;
9661         case IEEE_B:
9662                 strncpy(extra, "802.11b (2)", MAX_WX_STRING);
9663                 break;
9664         case IEEE_A | IEEE_B:
9665                 strncpy(extra, "802.11ab (3)", MAX_WX_STRING);
9666                 break;
9667         case IEEE_G:
9668                 strncpy(extra, "802.11g (4)", MAX_WX_STRING);
9669                 break;
9670         case IEEE_A | IEEE_G:
9671                 strncpy(extra, "802.11ag (5)", MAX_WX_STRING);
9672                 break;
9673         case IEEE_B | IEEE_G:
9674                 strncpy(extra, "802.11bg (6)", MAX_WX_STRING);
9675                 break;
9676         case IEEE_A | IEEE_B | IEEE_G:
9677                 strncpy(extra, "802.11abg (7)", MAX_WX_STRING);
9678                 break;
9679         default:
9680                 strncpy(extra, "unknown", MAX_WX_STRING);
9681                 break;
9682         }
9683
9684         IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra);
9685
9686         wrqu->data.length = strlen(extra) + 1;
9687         mutex_unlock(&priv->mutex);
9688
9689         return 0;
9690 }
9691
9692 static int ipw_wx_set_preamble(struct net_device *dev,
9693                                struct iw_request_info *info,
9694                                union iwreq_data *wrqu, char *extra)
9695 {
9696         struct ipw_priv *priv = ieee80211_priv(dev);
9697         int mode = *(int *)extra;
9698         mutex_lock(&priv->mutex);
9699         /* Switching from SHORT -> LONG requires a disassociation */
9700         if (mode == 1) {
9701                 if (!(priv->config & CFG_PREAMBLE_LONG)) {
9702                         priv->config |= CFG_PREAMBLE_LONG;
9703
9704                         /* Network configuration changed -- force [re]association */
9705                         IPW_DEBUG_ASSOC
9706                             ("[re]association triggered due to preamble change.\n");
9707                         if (!ipw_disassociate(priv))
9708                                 ipw_associate(priv);
9709                 }
9710                 goto done;
9711         }
9712
9713         if (mode == 0) {
9714                 priv->config &= ~CFG_PREAMBLE_LONG;
9715                 goto done;
9716         }
9717         mutex_unlock(&priv->mutex);
9718         return -EINVAL;
9719
9720       done:
9721         mutex_unlock(&priv->mutex);
9722         return 0;
9723 }
9724
9725 static int ipw_wx_get_preamble(struct net_device *dev,
9726                                struct iw_request_info *info,
9727                                union iwreq_data *wrqu, char *extra)
9728 {
9729         struct ipw_priv *priv = ieee80211_priv(dev);
9730         mutex_lock(&priv->mutex);
9731         if (priv->config & CFG_PREAMBLE_LONG)
9732                 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
9733         else
9734                 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
9735         mutex_unlock(&priv->mutex);
9736         return 0;
9737 }
9738
9739 #ifdef CONFIG_IPW2200_MONITOR
9740 static int ipw_wx_set_monitor(struct net_device *dev,
9741                               struct iw_request_info *info,
9742                               union iwreq_data *wrqu, char *extra)
9743 {
9744         struct ipw_priv *priv = ieee80211_priv(dev);
9745         int *parms = (int *)extra;
9746         int enable = (parms[0] > 0);
9747         mutex_lock(&priv->mutex);
9748         IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]);
9749         if (enable) {
9750                 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9751 #ifdef CONFIG_IPW2200_RADIOTAP
9752                         priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
9753 #else
9754                         priv->net_dev->type = ARPHRD_IEEE80211;
9755 #endif
9756                         queue_work(priv->workqueue, &priv->adapter_restart);
9757                 }
9758
9759                 ipw_set_channel(priv, parms[1]);
9760         } else {
9761                 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9762                         mutex_unlock(&priv->mutex);
9763                         return 0;
9764                 }
9765                 priv->net_dev->type = ARPHRD_ETHER;
9766                 queue_work(priv->workqueue, &priv->adapter_restart);
9767         }
9768         mutex_unlock(&priv->mutex);
9769         return 0;
9770 }
9771
9772 #endif                          /* CONFIG_IPW2200_MONITOR */
9773
9774 static int ipw_wx_reset(struct net_device *dev,
9775                         struct iw_request_info *info,
9776                         union iwreq_data *wrqu, char *extra)
9777 {
9778         struct ipw_priv *priv = ieee80211_priv(dev);
9779         IPW_DEBUG_WX("RESET\n");
9780         queue_work(priv->workqueue, &priv->adapter_restart);
9781         return 0;
9782 }
9783
9784 static int ipw_wx_sw_reset(struct net_device *dev,
9785                            struct iw_request_info *info,
9786                            union iwreq_data *wrqu, char *extra)
9787 {
9788         struct ipw_priv *priv = ieee80211_priv(dev);
9789         union iwreq_data wrqu_sec = {
9790                 .encoding = {
9791                              .flags = IW_ENCODE_DISABLED,
9792                              },
9793         };
9794         int ret;
9795
9796         IPW_DEBUG_WX("SW_RESET\n");
9797
9798         mutex_lock(&priv->mutex);
9799
9800         ret = ipw_sw_reset(priv, 2);
9801         if (!ret) {
9802                 free_firmware();
9803                 ipw_adapter_restart(priv);
9804         }
9805
9806         /* The SW reset bit might have been toggled on by the 'disable'
9807          * module parameter, so take appropriate action */
9808         ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW);
9809
9810         mutex_unlock(&priv->mutex);
9811         ieee80211_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL);
9812         mutex_lock(&priv->mutex);
9813
9814         if (!(priv->status & STATUS_RF_KILL_MASK)) {
9815                 /* Configuration likely changed -- force [re]association */
9816                 IPW_DEBUG_ASSOC("[re]association triggered due to sw "
9817                                 "reset.\n");
9818                 if (!ipw_disassociate(priv))
9819                         ipw_associate(priv);
9820         }
9821
9822         mutex_unlock(&priv->mutex);
9823
9824         return 0;
9825 }
9826
9827 /* Rebase the WE IOCTLs to zero for the handler array */
9828 #define IW_IOCTL(x) [(x)-SIOCSIWCOMMIT]
9829 static iw_handler ipw_wx_handlers[] = {
9830         IW_IOCTL(SIOCGIWNAME) = ipw_wx_get_name,
9831         IW_IOCTL(SIOCSIWFREQ) = ipw_wx_set_freq,
9832         IW_IOCTL(SIOCGIWFREQ) = ipw_wx_get_freq,
9833         IW_IOCTL(SIOCSIWMODE) = ipw_wx_set_mode,
9834         IW_IOCTL(SIOCGIWMODE) = ipw_wx_get_mode,
9835         IW_IOCTL(SIOCSIWSENS) = ipw_wx_set_sens,
9836         IW_IOCTL(SIOCGIWSENS) = ipw_wx_get_sens,
9837         IW_IOCTL(SIOCGIWRANGE) = ipw_wx_get_range,
9838         IW_IOCTL(SIOCSIWAP) = ipw_wx_set_wap,
9839         IW_IOCTL(SIOCGIWAP) = ipw_wx_get_wap,
9840         IW_IOCTL(SIOCSIWSCAN) = ipw_wx_set_scan,
9841         IW_IOCTL(SIOCGIWSCAN) = ipw_wx_get_scan,
9842         IW_IOCTL(SIOCSIWESSID) = ipw_wx_set_essid,
9843         IW_IOCTL(SIOCGIWESSID) = ipw_wx_get_essid,
9844         IW_IOCTL(SIOCSIWNICKN) = ipw_wx_set_nick,
9845         IW_IOCTL(SIOCGIWNICKN) = ipw_wx_get_nick,
9846         IW_IOCTL(SIOCSIWRATE) = ipw_wx_set_rate,
9847         IW_IOCTL(SIOCGIWRATE) = ipw_wx_get_rate,
9848         IW_IOCTL(SIOCSIWRTS) = ipw_wx_set_rts,
9849         IW_IOCTL(SIOCGIWRTS) = ipw_wx_get_rts,
9850         IW_IOCTL(SIOCSIWFRAG) = ipw_wx_set_frag,
9851         IW_IOCTL(SIOCGIWFRAG) = ipw_wx_get_frag,
9852         IW_IOCTL(SIOCSIWTXPOW) = ipw_wx_set_txpow,
9853         IW_IOCTL(SIOCGIWTXPOW) = ipw_wx_get_txpow,
9854         IW_IOCTL(SIOCSIWRETRY) = ipw_wx_set_retry,
9855         IW_IOCTL(SIOCGIWRETRY) = ipw_wx_get_retry,
9856         IW_IOCTL(SIOCSIWENCODE) = ipw_wx_set_encode,
9857         IW_IOCTL(SIOCGIWENCODE) = ipw_wx_get_encode,
9858         IW_IOCTL(SIOCSIWPOWER) = ipw_wx_set_power,
9859         IW_IOCTL(SIOCGIWPOWER) = ipw_wx_get_power,
9860         IW_IOCTL(SIOCSIWSPY) = iw_handler_set_spy,
9861         IW_IOCTL(SIOCGIWSPY) = iw_handler_get_spy,
9862         IW_IOCTL(SIOCSIWTHRSPY) = iw_handler_set_thrspy,
9863         IW_IOCTL(SIOCGIWTHRSPY) = iw_handler_get_thrspy,
9864         IW_IOCTL(SIOCSIWGENIE) = ipw_wx_set_genie,
9865         IW_IOCTL(SIOCGIWGENIE) = ipw_wx_get_genie,
9866         IW_IOCTL(SIOCSIWMLME) = ipw_wx_set_mlme,
9867         IW_IOCTL(SIOCSIWAUTH) = ipw_wx_set_auth,
9868         IW_IOCTL(SIOCGIWAUTH) = ipw_wx_get_auth,
9869         IW_IOCTL(SIOCSIWENCODEEXT) = ipw_wx_set_encodeext,
9870         IW_IOCTL(SIOCGIWENCODEEXT) = ipw_wx_get_encodeext,
9871 };
9872
9873 enum {
9874         IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV,
9875         IPW_PRIV_GET_POWER,
9876         IPW_PRIV_SET_MODE,
9877         IPW_PRIV_GET_MODE,
9878         IPW_PRIV_SET_PREAMBLE,
9879         IPW_PRIV_GET_PREAMBLE,
9880         IPW_PRIV_RESET,
9881         IPW_PRIV_SW_RESET,
9882 #ifdef CONFIG_IPW2200_MONITOR
9883         IPW_PRIV_SET_MONITOR,
9884 #endif
9885 };
9886
9887 static struct iw_priv_args ipw_priv_args[] = {
9888         {
9889          .cmd = IPW_PRIV_SET_POWER,
9890          .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9891          .name = "set_power"},
9892         {
9893          .cmd = IPW_PRIV_GET_POWER,
9894          .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9895          .name = "get_power"},
9896         {
9897          .cmd = IPW_PRIV_SET_MODE,
9898          .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9899          .name = "set_mode"},
9900         {
9901          .cmd = IPW_PRIV_GET_MODE,
9902          .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9903          .name = "get_mode"},
9904         {
9905          .cmd = IPW_PRIV_SET_PREAMBLE,
9906          .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9907          .name = "set_preamble"},
9908         {
9909          .cmd = IPW_PRIV_GET_PREAMBLE,
9910          .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ,
9911          .name = "get_preamble"},
9912         {
9913          IPW_PRIV_RESET,
9914          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
9915         {
9916          IPW_PRIV_SW_RESET,
9917          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset"},
9918 #ifdef CONFIG_IPW2200_MONITOR
9919         {
9920          IPW_PRIV_SET_MONITOR,
9921          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
9922 #endif                          /* CONFIG_IPW2200_MONITOR */
9923 };
9924
9925 static iw_handler ipw_priv_handler[] = {
9926         ipw_wx_set_powermode,
9927         ipw_wx_get_powermode,
9928         ipw_wx_set_wireless_mode,
9929         ipw_wx_get_wireless_mode,
9930         ipw_wx_set_preamble,
9931         ipw_wx_get_preamble,
9932         ipw_wx_reset,
9933         ipw_wx_sw_reset,
9934 #ifdef CONFIG_IPW2200_MONITOR
9935         ipw_wx_set_monitor,
9936 #endif
9937 };
9938
9939 static struct iw_handler_def ipw_wx_handler_def = {
9940         .standard = ipw_wx_handlers,
9941         .num_standard = ARRAY_SIZE(ipw_wx_handlers),
9942         .num_private = ARRAY_SIZE(ipw_priv_handler),
9943         .num_private_args = ARRAY_SIZE(ipw_priv_args),
9944         .private = ipw_priv_handler,
9945         .private_args = ipw_priv_args,
9946         .get_wireless_stats = ipw_get_wireless_stats,
9947 };
9948
9949 /*
9950  * Get wireless statistics.
9951  * Called by /proc/net/wireless
9952  * Also called by SIOCGIWSTATS
9953  */
9954 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev)
9955 {
9956         struct ipw_priv *priv = ieee80211_priv(dev);
9957         struct iw_statistics *wstats;
9958
9959         wstats = &priv->wstats;
9960
9961         /* if hw is disabled, then ipw_get_ordinal() can't be called.
9962          * netdev->get_wireless_stats seems to be called before fw is
9963          * initialized.  STATUS_ASSOCIATED will only be set if the hw is up
9964          * and associated; if not associcated, the values are all meaningless
9965          * anyway, so set them all to NULL and INVALID */
9966         if (!(priv->status & STATUS_ASSOCIATED)) {
9967                 wstats->miss.beacon = 0;
9968                 wstats->discard.retries = 0;
9969                 wstats->qual.qual = 0;
9970                 wstats->qual.level = 0;
9971                 wstats->qual.noise = 0;
9972                 wstats->qual.updated = 7;
9973                 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
9974                     IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
9975                 return wstats;
9976         }
9977
9978         wstats->qual.qual = priv->quality;
9979         wstats->qual.level = priv->exp_avg_rssi;
9980         wstats->qual.noise = priv->exp_avg_noise;
9981         wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
9982             IW_QUAL_NOISE_UPDATED | IW_QUAL_DBM;
9983
9984         wstats->miss.beacon = average_value(&priv->average_missed_beacons);
9985         wstats->discard.retries = priv->last_tx_failures;
9986         wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable;
9987
9988 /*      if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len))
9989         goto fail_get_ordinal;
9990         wstats->discard.retries += tx_retry; */
9991
9992         return wstats;
9993 }
9994
9995 /* net device stuff */
9996
9997 static  void init_sys_config(struct ipw_sys_config *sys_config)
9998 {
9999         memset(sys_config, 0, sizeof(struct ipw_sys_config));
10000         sys_config->bt_coexistence = 0;
10001         sys_config->answer_broadcast_ssid_probe = 0;
10002         sys_config->accept_all_data_frames = 0;
10003         sys_config->accept_non_directed_frames = 1;
10004         sys_config->exclude_unicast_unencrypted = 0;
10005         sys_config->disable_unicast_decryption = 1;
10006         sys_config->exclude_multicast_unencrypted = 0;
10007         sys_config->disable_multicast_decryption = 1;
10008         if (antenna < CFG_SYS_ANTENNA_BOTH || antenna > CFG_SYS_ANTENNA_B)
10009                 antenna = CFG_SYS_ANTENNA_BOTH;
10010         sys_config->antenna_diversity = antenna;
10011         sys_config->pass_crc_to_host = 0;       /* TODO: See if 1 gives us FCS */
10012         sys_config->dot11g_auto_detection = 0;
10013         sys_config->enable_cts_to_self = 0;
10014         sys_config->bt_coexist_collision_thr = 0;
10015         sys_config->pass_noise_stats_to_host = 1;       /* 1 -- fix for 256 */
10016         sys_config->silence_threshold = 0x1e;
10017 }
10018
10019 static int ipw_net_open(struct net_device *dev)
10020 {
10021         struct ipw_priv *priv = ieee80211_priv(dev);
10022         IPW_DEBUG_INFO("dev->open\n");
10023         /* we should be verifying the device is ready to be opened */
10024         mutex_lock(&priv->mutex);
10025         if (!(priv->status & STATUS_RF_KILL_MASK) &&
10026             (priv->status & STATUS_ASSOCIATED))
10027                 netif_start_queue(dev);
10028         mutex_unlock(&priv->mutex);
10029         return 0;
10030 }
10031
10032 static int ipw_net_stop(struct net_device *dev)
10033 {
10034         IPW_DEBUG_INFO("dev->close\n");
10035         netif_stop_queue(dev);
10036         return 0;
10037 }
10038
10039 /*
10040 todo:
10041
10042 modify to send one tfd per fragment instead of using chunking.  otherwise
10043 we need to heavily modify the ieee80211_skb_to_txb.
10044 */
10045
10046 static int ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb,
10047                              int pri)
10048 {
10049         struct ieee80211_hdr_3addrqos *hdr = (struct ieee80211_hdr_3addrqos *)
10050             txb->fragments[0]->data;
10051         int i = 0;
10052         struct tfd_frame *tfd;
10053 #ifdef CONFIG_IPW2200_QOS
10054         int tx_id = ipw_get_tx_queue_number(priv, pri);
10055         struct clx2_tx_queue *txq = &priv->txq[tx_id];
10056 #else
10057         struct clx2_tx_queue *txq = &priv->txq[0];
10058 #endif
10059         struct clx2_queue *q = &txq->q;
10060         u8 id, hdr_len, unicast;
10061         u16 remaining_bytes;
10062         int fc;
10063
10064         hdr_len = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
10065         switch (priv->ieee->iw_mode) {
10066         case IW_MODE_ADHOC:
10067                 unicast = !is_multicast_ether_addr(hdr->addr1);
10068                 id = ipw_find_station(priv, hdr->addr1);
10069                 if (id == IPW_INVALID_STATION) {
10070                         id = ipw_add_station(priv, hdr->addr1);
10071                         if (id == IPW_INVALID_STATION) {
10072                                 IPW_WARNING("Attempt to send data to "
10073                                             "invalid cell: " MAC_FMT "\n",
10074                                             MAC_ARG(hdr->addr1));
10075                                 goto drop;
10076                         }
10077                 }
10078                 break;
10079
10080         case IW_MODE_INFRA:
10081         default:
10082                 unicast = !is_multicast_ether_addr(hdr->addr3);
10083                 id = 0;
10084                 break;
10085         }
10086
10087         tfd = &txq->bd[q->first_empty];
10088         txq->txb[q->first_empty] = txb;
10089         memset(tfd, 0, sizeof(*tfd));
10090         tfd->u.data.station_number = id;
10091
10092         tfd->control_flags.message_type = TX_FRAME_TYPE;
10093         tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
10094
10095         tfd->u.data.cmd_id = DINO_CMD_TX;
10096         tfd->u.data.len = cpu_to_le16(txb->payload_size);
10097         remaining_bytes = txb->payload_size;
10098
10099         if (priv->assoc_request.ieee_mode == IPW_B_MODE)
10100                 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK;
10101         else
10102                 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM;
10103
10104         if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE)
10105                 tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE;
10106
10107         fc = le16_to_cpu(hdr->frame_ctl);
10108         hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS);
10109
10110         memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len);
10111
10112         if (likely(unicast))
10113                 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10114
10115         if (txb->encrypted && !priv->ieee->host_encrypt) {
10116                 switch (priv->ieee->sec.level) {
10117                 case SEC_LEVEL_3:
10118                         tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10119                             cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10120                         /* XXX: ACK flag must be set for CCMP even if it
10121                          * is a multicast/broadcast packet, because CCMP
10122                          * group communication encrypted by GTK is
10123                          * actually done by the AP. */
10124                         if (!unicast)
10125                                 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
10126
10127                         tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10128                         tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM;
10129                         tfd->u.data.key_index = 0;
10130                         tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE;
10131                         break;
10132                 case SEC_LEVEL_2:
10133                         tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10134                             cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10135                         tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
10136                         tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP;
10137                         tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE;
10138                         break;
10139                 case SEC_LEVEL_1:
10140                         tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
10141                             cpu_to_le16(IEEE80211_FCTL_PROTECTED);
10142                         tfd->u.data.key_index = priv->ieee->tx_keyidx;
10143                         if (priv->ieee->sec.key_sizes[priv->ieee->tx_keyidx] <=
10144                             40)
10145                                 tfd->u.data.key_index |= DCT_WEP_KEY_64Bit;
10146                         else
10147                                 tfd->u.data.key_index |= DCT_WEP_KEY_128Bit;
10148                         break;
10149                 case SEC_LEVEL_0:
10150                         break;
10151                 default:
10152                         printk(KERN_ERR "Unknow security level %d\n",
10153                                priv->ieee->sec.level);
10154                         break;
10155                 }
10156         } else
10157                 /* No hardware encryption */
10158                 tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP;
10159
10160 #ifdef CONFIG_IPW2200_QOS
10161         if (fc & IEEE80211_STYPE_QOS_DATA)
10162                 ipw_qos_set_tx_queue_command(priv, pri, &(tfd->u.data));
10163 #endif                          /* CONFIG_IPW2200_QOS */
10164
10165         /* payload */
10166         tfd->u.data.num_chunks = cpu_to_le32(min((u8) (NUM_TFD_CHUNKS - 2),
10167                                                  txb->nr_frags));
10168         IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n",
10169                        txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks));
10170         for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) {
10171                 IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n",
10172                                i, le32_to_cpu(tfd->u.data.num_chunks),
10173                                txb->fragments[i]->len - hdr_len);
10174                 IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n",
10175                              i, tfd->u.data.num_chunks,
10176                              txb->fragments[i]->len - hdr_len);
10177                 printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len,
10178                            txb->fragments[i]->len - hdr_len);
10179
10180                 tfd->u.data.chunk_ptr[i] =
10181                     cpu_to_le32(pci_map_single
10182                                 (priv->pci_dev,
10183                                  txb->fragments[i]->data + hdr_len,
10184                                  txb->fragments[i]->len - hdr_len,
10185                                  PCI_DMA_TODEVICE));
10186                 tfd->u.data.chunk_len[i] =
10187                     cpu_to_le16(txb->fragments[i]->len - hdr_len);
10188         }
10189
10190         if (i != txb->nr_frags) {
10191                 struct sk_buff *skb;
10192                 u16 remaining_bytes = 0;
10193                 int j;
10194
10195                 for (j = i; j < txb->nr_frags; j++)
10196                         remaining_bytes += txb->fragments[j]->len - hdr_len;
10197
10198                 printk(KERN_INFO "Trying to reallocate for %d bytes\n",
10199                        remaining_bytes);
10200                 skb = alloc_skb(remaining_bytes, GFP_ATOMIC);
10201                 if (skb != NULL) {
10202                         tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes);
10203                         for (j = i; j < txb->nr_frags; j++) {
10204                                 int size = txb->fragments[j]->len - hdr_len;
10205
10206                                 printk(KERN_INFO "Adding frag %d %d...\n",
10207                                        j, size);
10208                                 memcpy(skb_put(skb, size),
10209                                        txb->fragments[j]->data + hdr_len, size);
10210                         }
10211                         dev_kfree_skb_any(txb->fragments[i]);
10212                         txb->fragments[i] = skb;
10213                         tfd->u.data.chunk_ptr[i] =
10214                             cpu_to_le32(pci_map_single
10215                                         (priv->pci_dev, skb->data,
10216                                          tfd->u.data.chunk_len[i],
10217                                          PCI_DMA_TODEVICE));
10218
10219                         tfd->u.data.num_chunks =
10220                             cpu_to_le32(le32_to_cpu(tfd->u.data.num_chunks) +
10221                                         1);
10222                 }
10223         }
10224
10225         /* kick DMA */
10226         q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
10227         ipw_write32(priv, q->reg_w, q->first_empty);
10228
10229         if (ipw_queue_space(q) < q->high_mark)
10230                 netif_stop_queue(priv->net_dev);
10231
10232         return NETDEV_TX_OK;
10233
10234       drop:
10235         IPW_DEBUG_DROP("Silently dropping Tx packet.\n");
10236         ieee80211_txb_free(txb);
10237         return NETDEV_TX_OK;
10238 }
10239
10240 static int ipw_net_is_queue_full(struct net_device *dev, int pri)
10241 {
10242         struct ipw_priv *priv = ieee80211_priv(dev);
10243 #ifdef CONFIG_IPW2200_QOS
10244         int tx_id = ipw_get_tx_queue_number(priv, pri);
10245         struct clx2_tx_queue *txq = &priv->txq[tx_id];
10246 #else
10247         struct clx2_tx_queue *txq = &priv->txq[0];
10248 #endif                          /* CONFIG_IPW2200_QOS */
10249
10250         if (ipw_queue_space(&txq->q) < txq->q.high_mark)
10251                 return 1;
10252
10253         return 0;
10254 }
10255
10256 #ifdef CONFIG_IPW2200_PROMISCUOUS
10257 static void ipw_handle_promiscuous_tx(struct ipw_priv *priv,
10258                                       struct ieee80211_txb *txb)
10259 {
10260         struct ieee80211_rx_stats dummystats;
10261         struct ieee80211_hdr *hdr;
10262         u8 n;
10263         u16 filter = priv->prom_priv->filter;
10264         int hdr_only = 0;
10265
10266         if (filter & IPW_PROM_NO_TX)
10267                 return;
10268
10269         memset(&dummystats, 0, sizeof(dummystats));
10270
10271         /* Filtering of fragment chains is done agains the first fragment */
10272         hdr = (void *)txb->fragments[0]->data;
10273         if (ieee80211_is_management(le16_to_cpu(hdr->frame_ctl))) {
10274                 if (filter & IPW_PROM_NO_MGMT)
10275                         return;
10276                 if (filter & IPW_PROM_MGMT_HEADER_ONLY)
10277                         hdr_only = 1;
10278         } else if (ieee80211_is_control(le16_to_cpu(hdr->frame_ctl))) {
10279                 if (filter & IPW_PROM_NO_CTL)
10280                         return;
10281                 if (filter & IPW_PROM_CTL_HEADER_ONLY)
10282                         hdr_only = 1;
10283         } else if (ieee80211_is_data(le16_to_cpu(hdr->frame_ctl))) {
10284                 if (filter & IPW_PROM_NO_DATA)
10285                         return;
10286                 if (filter & IPW_PROM_DATA_HEADER_ONLY)
10287                         hdr_only = 1;
10288         }
10289
10290         for(n=0; n<txb->nr_frags; ++n) {
10291                 struct sk_buff *src = txb->fragments[n];
10292                 struct sk_buff *dst;
10293                 struct ieee80211_radiotap_header *rt_hdr;
10294                 int len;
10295
10296                 if (hdr_only) {
10297                         hdr = (void *)src->data;
10298                         len = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
10299                 } else
10300                         len = src->len;
10301
10302                 dst = alloc_skb(
10303                         len + IEEE80211_RADIOTAP_HDRLEN, GFP_ATOMIC);
10304                 if (!dst) continue;
10305
10306                 rt_hdr = (void *)skb_put(dst, sizeof(*rt_hdr));
10307
10308                 rt_hdr->it_version = PKTHDR_RADIOTAP_VERSION;
10309                 rt_hdr->it_pad = 0;
10310                 rt_hdr->it_present = 0; /* after all, it's just an idea */
10311                 rt_hdr->it_present |=  (1 << IEEE80211_RADIOTAP_CHANNEL);
10312
10313                 *(u16*)skb_put(dst, sizeof(u16)) = cpu_to_le16(
10314                         ieee80211chan2mhz(priv->channel));
10315                 if (priv->channel > 14)         /* 802.11a */
10316                         *(u16*)skb_put(dst, sizeof(u16)) =
10317                                 cpu_to_le16(IEEE80211_CHAN_OFDM |
10318                                              IEEE80211_CHAN_5GHZ);
10319                 else if (priv->ieee->mode == IEEE_B) /* 802.11b */
10320                         *(u16*)skb_put(dst, sizeof(u16)) =
10321                                 cpu_to_le16(IEEE80211_CHAN_CCK |
10322                                              IEEE80211_CHAN_2GHZ);
10323                 else            /* 802.11g */
10324                         *(u16*)skb_put(dst, sizeof(u16)) =
10325                                 cpu_to_le16(IEEE80211_CHAN_OFDM |
10326                                  IEEE80211_CHAN_2GHZ);
10327
10328                 rt_hdr->it_len = dst->len;
10329
10330                 memcpy(skb_put(dst, len), src->data, len);
10331
10332                 if (!ieee80211_rx(priv->prom_priv->ieee, dst, &dummystats))
10333                         dev_kfree_skb_any(dst);
10334         }
10335 }
10336 #endif
10337
10338 static int ipw_net_hard_start_xmit(struct ieee80211_txb *txb,
10339                                    struct net_device *dev, int pri)
10340 {
10341         struct ipw_priv *priv = ieee80211_priv(dev);
10342         unsigned long flags;
10343         int ret;
10344
10345         IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size);
10346         spin_lock_irqsave(&priv->lock, flags);
10347
10348         if (!(priv->status & STATUS_ASSOCIATED)) {
10349                 IPW_DEBUG_INFO("Tx attempt while not associated.\n");
10350                 priv->ieee->stats.tx_carrier_errors++;
10351                 netif_stop_queue(dev);
10352                 goto fail_unlock;
10353         }
10354
10355 #ifdef CONFIG_IPW2200_PROMISCUOUS
10356         if (rtap_iface && netif_running(priv->prom_net_dev))
10357                 ipw_handle_promiscuous_tx(priv, txb);
10358 #endif
10359
10360         ret = ipw_tx_skb(priv, txb, pri);
10361         if (ret == NETDEV_TX_OK)
10362                 __ipw_led_activity_on(priv);
10363         spin_unlock_irqrestore(&priv->lock, flags);
10364
10365         return ret;
10366
10367       fail_unlock:
10368         spin_unlock_irqrestore(&priv->lock, flags);
10369         return 1;
10370 }
10371
10372 static struct net_device_stats *ipw_net_get_stats(struct net_device *dev)
10373 {
10374         struct ipw_priv *priv = ieee80211_priv(dev);
10375
10376         priv->ieee->stats.tx_packets = priv->tx_packets;
10377         priv->ieee->stats.rx_packets = priv->rx_packets;
10378         return &priv->ieee->stats;
10379 }
10380
10381 static void ipw_net_set_multicast_list(struct net_device *dev)
10382 {
10383
10384 }
10385
10386 static int ipw_net_set_mac_address(struct net_device *dev, void *p)
10387 {
10388         struct ipw_priv *priv = ieee80211_priv(dev);
10389         struct sockaddr *addr = p;
10390         if (!is_valid_ether_addr(addr->sa_data))
10391                 return -EADDRNOTAVAIL;
10392         mutex_lock(&priv->mutex);
10393         priv->config |= CFG_CUSTOM_MAC;
10394         memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
10395         printk(KERN_INFO "%s: Setting MAC to " MAC_FMT "\n",
10396                priv->net_dev->name, MAC_ARG(priv->mac_addr));
10397         queue_work(priv->workqueue, &priv->adapter_restart);
10398         mutex_unlock(&priv->mutex);
10399         return 0;
10400 }
10401
10402 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
10403                                     struct ethtool_drvinfo *info)
10404 {
10405         struct ipw_priv *p = ieee80211_priv(dev);
10406         char vers[64];
10407         char date[32];
10408         u32 len;
10409
10410         strcpy(info->driver, DRV_NAME);
10411         strcpy(info->version, DRV_VERSION);
10412
10413         len = sizeof(vers);
10414         ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len);
10415         len = sizeof(date);
10416         ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len);
10417
10418         snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)",
10419                  vers, date);
10420         strcpy(info->bus_info, pci_name(p->pci_dev));
10421         info->eedump_len = IPW_EEPROM_IMAGE_SIZE;
10422 }
10423
10424 static u32 ipw_ethtool_get_link(struct net_device *dev)
10425 {
10426         struct ipw_priv *priv = ieee80211_priv(dev);
10427         return (priv->status & STATUS_ASSOCIATED) != 0;
10428 }
10429
10430 static int ipw_ethtool_get_eeprom_len(struct net_device *dev)
10431 {
10432         return IPW_EEPROM_IMAGE_SIZE;
10433 }
10434
10435 static int ipw_ethtool_get_eeprom(struct net_device *dev,
10436                                   struct ethtool_eeprom *eeprom, u8 * bytes)
10437 {
10438         struct ipw_priv *p = ieee80211_priv(dev);
10439
10440         if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10441                 return -EINVAL;
10442         mutex_lock(&p->mutex);
10443         memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len);
10444         mutex_unlock(&p->mutex);
10445         return 0;
10446 }
10447
10448 static int ipw_ethtool_set_eeprom(struct net_device *dev,
10449                                   struct ethtool_eeprom *eeprom, u8 * bytes)
10450 {
10451         struct ipw_priv *p = ieee80211_priv(dev);
10452         int i;
10453
10454         if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
10455                 return -EINVAL;
10456         mutex_lock(&p->mutex);
10457         memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len);
10458         for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
10459                 ipw_write8(p, i + IPW_EEPROM_DATA, p->eeprom[i]);
10460         mutex_unlock(&p->mutex);
10461         return 0;
10462 }
10463
10464 static const struct ethtool_ops ipw_ethtool_ops = {
10465         .get_link = ipw_ethtool_get_link,
10466         .get_drvinfo = ipw_ethtool_get_drvinfo,
10467         .get_eeprom_len = ipw_ethtool_get_eeprom_len,
10468         .get_eeprom = ipw_ethtool_get_eeprom,
10469         .set_eeprom = ipw_ethtool_set_eeprom,
10470 };
10471
10472 static irqreturn_t ipw_isr(int irq, void *data, struct pt_regs *regs)
10473 {
10474         struct ipw_priv *priv = data;
10475         u32 inta, inta_mask;
10476
10477         if (!priv)
10478                 return IRQ_NONE;
10479
10480         spin_lock(&priv->irq_lock);
10481
10482         if (!(priv->status & STATUS_INT_ENABLED)) {
10483                 /* Shared IRQ */
10484                 goto none;
10485         }
10486
10487         inta = ipw_read32(priv, IPW_INTA_RW);
10488         inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
10489
10490         if (inta == 0xFFFFFFFF) {
10491                 /* Hardware disappeared */
10492                 IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n");
10493                 goto none;
10494         }
10495
10496         if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) {
10497                 /* Shared interrupt */
10498                 goto none;
10499         }
10500
10501         /* tell the device to stop sending interrupts */
10502         __ipw_disable_interrupts(priv);
10503
10504         /* ack current interrupts */
10505         inta &= (IPW_INTA_MASK_ALL & inta_mask);
10506         ipw_write32(priv, IPW_INTA_RW, inta);
10507
10508         /* Cache INTA value for our tasklet */
10509         priv->isr_inta = inta;
10510
10511         tasklet_schedule(&priv->irq_tasklet);
10512
10513         spin_unlock(&priv->irq_lock);
10514
10515         return IRQ_HANDLED;
10516       none:
10517         spin_unlock(&priv->irq_lock);
10518         return IRQ_NONE;
10519 }
10520
10521 static void ipw_rf_kill(void *adapter)
10522 {
10523         struct ipw_priv *priv = adapter;
10524         unsigned long flags;
10525
10526         spin_lock_irqsave(&priv->lock, flags);
10527
10528         if (rf_kill_active(priv)) {
10529                 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
10530                 if (priv->workqueue)
10531                         queue_delayed_work(priv->workqueue,
10532                                            &priv->rf_kill, 2 * HZ);
10533                 goto exit_unlock;
10534         }
10535
10536         /* RF Kill is now disabled, so bring the device back up */
10537
10538         if (!(priv->status & STATUS_RF_KILL_MASK)) {
10539                 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
10540                                   "device\n");
10541
10542                 /* we can not do an adapter restart while inside an irq lock */
10543                 queue_work(priv->workqueue, &priv->adapter_restart);
10544         } else
10545                 IPW_DEBUG_RF_KILL("HW RF Kill deactivated.  SW RF Kill still "
10546                                   "enabled\n");
10547
10548       exit_unlock:
10549         spin_unlock_irqrestore(&priv->lock, flags);
10550 }
10551
10552 static void ipw_bg_rf_kill(void *data)
10553 {
10554         struct ipw_priv *priv = data;
10555         mutex_lock(&priv->mutex);
10556         ipw_rf_kill(data);
10557         mutex_unlock(&priv->mutex);
10558 }
10559
10560 static void ipw_link_up(struct ipw_priv *priv)
10561 {
10562         priv->last_seq_num = -1;
10563         priv->last_frag_num = -1;
10564         priv->last_packet_time = 0;
10565
10566         netif_carrier_on(priv->net_dev);
10567         if (netif_queue_stopped(priv->net_dev)) {
10568                 IPW_DEBUG_NOTIF("waking queue\n");
10569                 netif_wake_queue(priv->net_dev);
10570         } else {
10571                 IPW_DEBUG_NOTIF("starting queue\n");
10572                 netif_start_queue(priv->net_dev);
10573         }
10574
10575         cancel_delayed_work(&priv->request_scan);
10576         ipw_reset_stats(priv);
10577         /* Ensure the rate is updated immediately */
10578         priv->last_rate = ipw_get_current_rate(priv);
10579         ipw_gather_stats(priv);
10580         ipw_led_link_up(priv);
10581         notify_wx_assoc_event(priv);
10582
10583         if (priv->config & CFG_BACKGROUND_SCAN)
10584                 queue_delayed_work(priv->workqueue, &priv->request_scan, HZ);
10585 }
10586
10587 static void ipw_bg_link_up(void *data)
10588 {
10589         struct ipw_priv *priv = data;
10590         mutex_lock(&priv->mutex);
10591         ipw_link_up(data);
10592         mutex_unlock(&priv->mutex);
10593 }
10594
10595 static void ipw_link_down(struct ipw_priv *priv)
10596 {
10597         ipw_led_link_down(priv);
10598         netif_carrier_off(priv->net_dev);
10599         netif_stop_queue(priv->net_dev);
10600         notify_wx_assoc_event(priv);
10601
10602         /* Cancel any queued work ... */
10603         cancel_delayed_work(&priv->request_scan);
10604         cancel_delayed_work(&priv->adhoc_check);
10605         cancel_delayed_work(&priv->gather_stats);
10606
10607         ipw_reset_stats(priv);
10608
10609         if (!(priv->status & STATUS_EXIT_PENDING)) {
10610                 /* Queue up another scan... */
10611                 queue_work(priv->workqueue, &priv->request_scan);
10612         }
10613 }
10614
10615 static void ipw_bg_link_down(void *data)
10616 {
10617         struct ipw_priv *priv = data;
10618         mutex_lock(&priv->mutex);
10619         ipw_link_down(data);
10620         mutex_unlock(&priv->mutex);
10621 }
10622
10623 static int ipw_setup_deferred_work(struct ipw_priv *priv)
10624 {
10625         int ret = 0;
10626
10627         priv->workqueue = create_workqueue(DRV_NAME);
10628         init_waitqueue_head(&priv->wait_command_queue);
10629         init_waitqueue_head(&priv->wait_state);
10630
10631         INIT_WORK(&priv->adhoc_check, ipw_bg_adhoc_check, priv);
10632         INIT_WORK(&priv->associate, ipw_bg_associate, priv);
10633         INIT_WORK(&priv->disassociate, ipw_bg_disassociate, priv);
10634         INIT_WORK(&priv->system_config, ipw_system_config, priv);
10635         INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish, priv);
10636         INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart, priv);
10637         INIT_WORK(&priv->rf_kill, ipw_bg_rf_kill, priv);
10638         INIT_WORK(&priv->up, (void (*)(void *))ipw_bg_up, priv);
10639         INIT_WORK(&priv->down, (void (*)(void *))ipw_bg_down, priv);
10640         INIT_WORK(&priv->request_scan,
10641                   (void (*)(void *))ipw_request_scan, priv);
10642         INIT_WORK(&priv->request_passive_scan,
10643                   (void (*)(void *))ipw_request_passive_scan, priv);
10644         INIT_WORK(&priv->gather_stats,
10645                   (void (*)(void *))ipw_bg_gather_stats, priv);
10646         INIT_WORK(&priv->abort_scan, (void (*)(void *))ipw_bg_abort_scan, priv);
10647         INIT_WORK(&priv->roam, ipw_bg_roam, priv);
10648         INIT_WORK(&priv->scan_check, ipw_bg_scan_check, priv);
10649         INIT_WORK(&priv->link_up, (void (*)(void *))ipw_bg_link_up, priv);
10650         INIT_WORK(&priv->link_down, (void (*)(void *))ipw_bg_link_down, priv);
10651         INIT_WORK(&priv->led_link_on, (void (*)(void *))ipw_bg_led_link_on,
10652                   priv);
10653         INIT_WORK(&priv->led_link_off, (void (*)(void *))ipw_bg_led_link_off,
10654                   priv);
10655         INIT_WORK(&priv->led_act_off, (void (*)(void *))ipw_bg_led_activity_off,
10656                   priv);
10657         INIT_WORK(&priv->merge_networks,
10658                   (void (*)(void *))ipw_merge_adhoc_network, priv);
10659
10660 #ifdef CONFIG_IPW2200_QOS
10661         INIT_WORK(&priv->qos_activate, (void (*)(void *))ipw_bg_qos_activate,
10662                   priv);
10663 #endif                          /* CONFIG_IPW2200_QOS */
10664
10665         tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
10666                      ipw_irq_tasklet, (unsigned long)priv);
10667
10668         return ret;
10669 }
10670
10671 static void shim__set_security(struct net_device *dev,
10672                                struct ieee80211_security *sec)
10673 {
10674         struct ipw_priv *priv = ieee80211_priv(dev);
10675         int i;
10676         for (i = 0; i < 4; i++) {
10677                 if (sec->flags & (1 << i)) {
10678                         priv->ieee->sec.encode_alg[i] = sec->encode_alg[i];
10679                         priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
10680                         if (sec->key_sizes[i] == 0)
10681                                 priv->ieee->sec.flags &= ~(1 << i);
10682                         else {
10683                                 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
10684                                        sec->key_sizes[i]);
10685                                 priv->ieee->sec.flags |= (1 << i);
10686                         }
10687                         priv->status |= STATUS_SECURITY_UPDATED;
10688                 } else if (sec->level != SEC_LEVEL_1)
10689                         priv->ieee->sec.flags &= ~(1 << i);
10690         }
10691
10692         if (sec->flags & SEC_ACTIVE_KEY) {
10693                 if (sec->active_key <= 3) {
10694                         priv->ieee->sec.active_key = sec->active_key;
10695                         priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
10696                 } else
10697                         priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10698                 priv->status |= STATUS_SECURITY_UPDATED;
10699         } else
10700                 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10701
10702         if ((sec->flags & SEC_AUTH_MODE) &&
10703             (priv->ieee->sec.auth_mode != sec->auth_mode)) {
10704                 priv->ieee->sec.auth_mode = sec->auth_mode;
10705                 priv->ieee->sec.flags |= SEC_AUTH_MODE;
10706                 if (sec->auth_mode == WLAN_AUTH_SHARED_KEY)
10707                         priv->capability |= CAP_SHARED_KEY;
10708                 else
10709                         priv->capability &= ~CAP_SHARED_KEY;
10710                 priv->status |= STATUS_SECURITY_UPDATED;
10711         }
10712
10713         if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
10714                 priv->ieee->sec.flags |= SEC_ENABLED;
10715                 priv->ieee->sec.enabled = sec->enabled;
10716                 priv->status |= STATUS_SECURITY_UPDATED;
10717                 if (sec->enabled)
10718                         priv->capability |= CAP_PRIVACY_ON;
10719                 else
10720                         priv->capability &= ~CAP_PRIVACY_ON;
10721         }
10722
10723         if (sec->flags & SEC_ENCRYPT)
10724                 priv->ieee->sec.encrypt = sec->encrypt;
10725
10726         if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
10727                 priv->ieee->sec.level = sec->level;
10728                 priv->ieee->sec.flags |= SEC_LEVEL;
10729                 priv->status |= STATUS_SECURITY_UPDATED;
10730         }
10731
10732         if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT))
10733                 ipw_set_hwcrypto_keys(priv);
10734
10735         /* To match current functionality of ipw2100 (which works well w/
10736          * various supplicants, we don't force a disassociate if the
10737          * privacy capability changes ... */
10738 #if 0
10739         if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) &&
10740             (((priv->assoc_request.capability &
10741                WLAN_CAPABILITY_PRIVACY) && !sec->enabled) ||
10742              (!(priv->assoc_request.capability &
10743                 WLAN_CAPABILITY_PRIVACY) && sec->enabled))) {
10744                 IPW_DEBUG_ASSOC("Disassociating due to capability "
10745                                 "change.\n");
10746                 ipw_disassociate(priv);
10747         }
10748 #endif
10749 }
10750
10751 static int init_supported_rates(struct ipw_priv *priv,
10752                                 struct ipw_supported_rates *rates)
10753 {
10754         /* TODO: Mask out rates based on priv->rates_mask */
10755
10756         memset(rates, 0, sizeof(*rates));
10757         /* configure supported rates */
10758         switch (priv->ieee->freq_band) {
10759         case IEEE80211_52GHZ_BAND:
10760                 rates->ieee_mode = IPW_A_MODE;
10761                 rates->purpose = IPW_RATE_CAPABILITIES;
10762                 ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
10763                                         IEEE80211_OFDM_DEFAULT_RATES_MASK);
10764                 break;
10765
10766         default:                /* Mixed or 2.4Ghz */
10767                 rates->ieee_mode = IPW_G_MODE;
10768                 rates->purpose = IPW_RATE_CAPABILITIES;
10769                 ipw_add_cck_scan_rates(rates, IEEE80211_CCK_MODULATION,
10770                                        IEEE80211_CCK_DEFAULT_RATES_MASK);
10771                 if (priv->ieee->modulation & IEEE80211_OFDM_MODULATION) {
10772                         ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
10773                                                 IEEE80211_OFDM_DEFAULT_RATES_MASK);
10774                 }
10775                 break;
10776         }
10777
10778         return 0;
10779 }
10780
10781 static int ipw_config(struct ipw_priv *priv)
10782 {
10783         /* This is only called from ipw_up, which resets/reloads the firmware
10784            so, we don't need to first disable the card before we configure
10785            it */
10786         if (ipw_set_tx_power(priv))
10787                 goto error;
10788
10789         /* initialize adapter address */
10790         if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr))
10791                 goto error;
10792
10793         /* set basic system config settings */
10794         init_sys_config(&priv->sys_config);
10795
10796         /* Support Bluetooth if we have BT h/w on board, and user wants to.
10797          * Does not support BT priority yet (don't abort or defer our Tx) */
10798         if (bt_coexist) {
10799                 unsigned char bt_caps = priv->eeprom[EEPROM_SKU_CAPABILITY];
10800
10801                 if (bt_caps & EEPROM_SKU_CAP_BT_CHANNEL_SIG)
10802                         priv->sys_config.bt_coexistence
10803                             |= CFG_BT_COEXISTENCE_SIGNAL_CHNL;
10804                 if (bt_caps & EEPROM_SKU_CAP_BT_OOB)
10805                         priv->sys_config.bt_coexistence
10806                             |= CFG_BT_COEXISTENCE_OOB;
10807         }
10808
10809 #ifdef CONFIG_IPW2200_PROMISCUOUS
10810         if (priv->prom_net_dev && netif_running(priv->prom_net_dev)) {
10811                 priv->sys_config.accept_all_data_frames = 1;
10812                 priv->sys_config.accept_non_directed_frames = 1;
10813                 priv->sys_config.accept_all_mgmt_bcpr = 1;
10814                 priv->sys_config.accept_all_mgmt_frames = 1;
10815         }
10816 #endif
10817
10818         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
10819                 priv->sys_config.answer_broadcast_ssid_probe = 1;
10820         else
10821                 priv->sys_config.answer_broadcast_ssid_probe = 0;
10822
10823         if (ipw_send_system_config(priv))
10824                 goto error;
10825
10826         init_supported_rates(priv, &priv->rates);
10827         if (ipw_send_supported_rates(priv, &priv->rates))
10828                 goto error;
10829
10830         /* Set request-to-send threshold */
10831         if (priv->rts_threshold) {
10832                 if (ipw_send_rts_threshold(priv, priv->rts_threshold))
10833                         goto error;
10834         }
10835 #ifdef CONFIG_IPW2200_QOS
10836         IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n");
10837         ipw_qos_activate(priv, NULL);
10838 #endif                          /* CONFIG_IPW2200_QOS */
10839
10840         if (ipw_set_random_seed(priv))
10841                 goto error;
10842
10843         /* final state transition to the RUN state */
10844         if (ipw_send_host_complete(priv))
10845                 goto error;
10846
10847         priv->status |= STATUS_INIT;
10848
10849         ipw_led_init(priv);
10850         ipw_led_radio_on(priv);
10851         priv->notif_missed_beacons = 0;
10852
10853         /* Set hardware WEP key if it is configured. */
10854         if ((priv->capability & CAP_PRIVACY_ON) &&
10855             (priv->ieee->sec.level == SEC_LEVEL_1) &&
10856             !(priv->ieee->host_encrypt || priv->ieee->host_decrypt))
10857                 ipw_set_hwcrypto_keys(priv);
10858
10859         return 0;
10860
10861       error:
10862         return -EIO;
10863 }
10864
10865 /*
10866  * NOTE:
10867  *
10868  * These tables have been tested in conjunction with the
10869  * Intel PRO/Wireless 2200BG and 2915ABG Network Connection Adapters.
10870  *
10871  * Altering this values, using it on other hardware, or in geographies
10872  * not intended for resale of the above mentioned Intel adapters has
10873  * not been tested.
10874  *
10875  * Remember to update the table in README.ipw2200 when changing this
10876  * table.
10877  *
10878  */
10879 static const struct ieee80211_geo ipw_geos[] = {
10880         {                       /* Restricted */
10881          "---",
10882          .bg_channels = 11,
10883          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10884                 {2427, 4}, {2432, 5}, {2437, 6},
10885                 {2442, 7}, {2447, 8}, {2452, 9},
10886                 {2457, 10}, {2462, 11}},
10887          },
10888
10889         {                       /* Custom US/Canada */
10890          "ZZF",
10891          .bg_channels = 11,
10892          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10893                 {2427, 4}, {2432, 5}, {2437, 6},
10894                 {2442, 7}, {2447, 8}, {2452, 9},
10895                 {2457, 10}, {2462, 11}},
10896          .a_channels = 8,
10897          .a = {{5180, 36},
10898                {5200, 40},
10899                {5220, 44},
10900                {5240, 48},
10901                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10902                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10903                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10904                {5320, 64, IEEE80211_CH_PASSIVE_ONLY}},
10905          },
10906
10907         {                       /* Rest of World */
10908          "ZZD",
10909          .bg_channels = 13,
10910          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10911                 {2427, 4}, {2432, 5}, {2437, 6},
10912                 {2442, 7}, {2447, 8}, {2452, 9},
10913                 {2457, 10}, {2462, 11}, {2467, 12},
10914                 {2472, 13}},
10915          },
10916
10917         {                       /* Custom USA & Europe & High */
10918          "ZZA",
10919          .bg_channels = 11,
10920          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10921                 {2427, 4}, {2432, 5}, {2437, 6},
10922                 {2442, 7}, {2447, 8}, {2452, 9},
10923                 {2457, 10}, {2462, 11}},
10924          .a_channels = 13,
10925          .a = {{5180, 36},
10926                {5200, 40},
10927                {5220, 44},
10928                {5240, 48},
10929                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10930                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10931                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10932                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10933                {5745, 149},
10934                {5765, 153},
10935                {5785, 157},
10936                {5805, 161},
10937                {5825, 165}},
10938          },
10939
10940         {                       /* Custom NA & Europe */
10941          "ZZB",
10942          .bg_channels = 11,
10943          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10944                 {2427, 4}, {2432, 5}, {2437, 6},
10945                 {2442, 7}, {2447, 8}, {2452, 9},
10946                 {2457, 10}, {2462, 11}},
10947          .a_channels = 13,
10948          .a = {{5180, 36},
10949                {5200, 40},
10950                {5220, 44},
10951                {5240, 48},
10952                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10953                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10954                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10955                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10956                {5745, 149, IEEE80211_CH_PASSIVE_ONLY},
10957                {5765, 153, IEEE80211_CH_PASSIVE_ONLY},
10958                {5785, 157, IEEE80211_CH_PASSIVE_ONLY},
10959                {5805, 161, IEEE80211_CH_PASSIVE_ONLY},
10960                {5825, 165, IEEE80211_CH_PASSIVE_ONLY}},
10961          },
10962
10963         {                       /* Custom Japan */
10964          "ZZC",
10965          .bg_channels = 11,
10966          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10967                 {2427, 4}, {2432, 5}, {2437, 6},
10968                 {2442, 7}, {2447, 8}, {2452, 9},
10969                 {2457, 10}, {2462, 11}},
10970          .a_channels = 4,
10971          .a = {{5170, 34}, {5190, 38},
10972                {5210, 42}, {5230, 46}},
10973          },
10974
10975         {                       /* Custom */
10976          "ZZM",
10977          .bg_channels = 11,
10978          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10979                 {2427, 4}, {2432, 5}, {2437, 6},
10980                 {2442, 7}, {2447, 8}, {2452, 9},
10981                 {2457, 10}, {2462, 11}},
10982          },
10983
10984         {                       /* Europe */
10985          "ZZE",
10986          .bg_channels = 13,
10987          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10988                 {2427, 4}, {2432, 5}, {2437, 6},
10989                 {2442, 7}, {2447, 8}, {2452, 9},
10990                 {2457, 10}, {2462, 11}, {2467, 12},
10991                 {2472, 13}},
10992          .a_channels = 19,
10993          .a = {{5180, 36},
10994                {5200, 40},
10995                {5220, 44},
10996                {5240, 48},
10997                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10998                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10999                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
11000                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
11001                {5500, 100, IEEE80211_CH_PASSIVE_ONLY},
11002                {5520, 104, IEEE80211_CH_PASSIVE_ONLY},
11003                {5540, 108, IEEE80211_CH_PASSIVE_ONLY},
11004                {5560, 112, IEEE80211_CH_PASSIVE_ONLY},
11005                {5580, 116, IEEE80211_CH_PASSIVE_ONLY},
11006                {5600, 120, IEEE80211_CH_PASSIVE_ONLY},
11007                {5620, 124, IEEE80211_CH_PASSIVE_ONLY},
11008                {5640, 128, IEEE80211_CH_PASSIVE_ONLY},
11009                {5660, 132, IEEE80211_CH_PASSIVE_ONLY},
11010                {5680, 136, IEEE80211_CH_PASSIVE_ONLY},
11011                {5700, 140, IEEE80211_CH_PASSIVE_ONLY}},
11012          },
11013
11014         {                       /* Custom Japan */
11015          "ZZJ",
11016          .bg_channels = 14,
11017          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11018                 {2427, 4}, {2432, 5}, {2437, 6},
11019                 {2442, 7}, {2447, 8}, {2452, 9},
11020                 {2457, 10}, {2462, 11}, {2467, 12},
11021                 {2472, 13}, {2484, 14, IEEE80211_CH_B_ONLY}},
11022          .a_channels = 4,
11023          .a = {{5170, 34}, {5190, 38},
11024                {5210, 42}, {5230, 46}},
11025          },
11026
11027         {                       /* Rest of World */
11028          "ZZR",
11029          .bg_channels = 14,
11030          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11031                 {2427, 4}, {2432, 5}, {2437, 6},
11032                 {2442, 7}, {2447, 8}, {2452, 9},
11033                 {2457, 10}, {2462, 11}, {2467, 12},
11034                 {2472, 13}, {2484, 14, IEEE80211_CH_B_ONLY |
11035                              IEEE80211_CH_PASSIVE_ONLY}},
11036          },
11037
11038         {                       /* High Band */
11039          "ZZH",
11040          .bg_channels = 13,
11041          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11042                 {2427, 4}, {2432, 5}, {2437, 6},
11043                 {2442, 7}, {2447, 8}, {2452, 9},
11044                 {2457, 10}, {2462, 11},
11045                 {2467, 12, IEEE80211_CH_PASSIVE_ONLY},
11046                 {2472, 13, IEEE80211_CH_PASSIVE_ONLY}},
11047          .a_channels = 4,
11048          .a = {{5745, 149}, {5765, 153},
11049                {5785, 157}, {5805, 161}},
11050          },
11051
11052         {                       /* Custom Europe */
11053          "ZZG",
11054          .bg_channels = 13,
11055          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11056                 {2427, 4}, {2432, 5}, {2437, 6},
11057                 {2442, 7}, {2447, 8}, {2452, 9},
11058                 {2457, 10}, {2462, 11},
11059                 {2467, 12}, {2472, 13}},
11060          .a_channels = 4,
11061          .a = {{5180, 36}, {5200, 40},
11062                {5220, 44}, {5240, 48}},
11063          },
11064
11065         {                       /* Europe */
11066          "ZZK",
11067          .bg_channels = 13,
11068          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11069                 {2427, 4}, {2432, 5}, {2437, 6},
11070                 {2442, 7}, {2447, 8}, {2452, 9},
11071                 {2457, 10}, {2462, 11},
11072                 {2467, 12, IEEE80211_CH_PASSIVE_ONLY},
11073                 {2472, 13, IEEE80211_CH_PASSIVE_ONLY}},
11074          .a_channels = 24,
11075          .a = {{5180, 36, IEEE80211_CH_PASSIVE_ONLY},
11076                {5200, 40, IEEE80211_CH_PASSIVE_ONLY},
11077                {5220, 44, IEEE80211_CH_PASSIVE_ONLY},
11078                {5240, 48, IEEE80211_CH_PASSIVE_ONLY},
11079                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
11080                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
11081                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
11082                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
11083                {5500, 100, IEEE80211_CH_PASSIVE_ONLY},
11084                {5520, 104, IEEE80211_CH_PASSIVE_ONLY},
11085                {5540, 108, IEEE80211_CH_PASSIVE_ONLY},
11086                {5560, 112, IEEE80211_CH_PASSIVE_ONLY},
11087                {5580, 116, IEEE80211_CH_PASSIVE_ONLY},
11088                {5600, 120, IEEE80211_CH_PASSIVE_ONLY},
11089                {5620, 124, IEEE80211_CH_PASSIVE_ONLY},
11090                {5640, 128, IEEE80211_CH_PASSIVE_ONLY},
11091                {5660, 132, IEEE80211_CH_PASSIVE_ONLY},
11092                {5680, 136, IEEE80211_CH_PASSIVE_ONLY},
11093                {5700, 140, IEEE80211_CH_PASSIVE_ONLY},
11094                {5745, 149, IEEE80211_CH_PASSIVE_ONLY},
11095                {5765, 153, IEEE80211_CH_PASSIVE_ONLY},
11096                {5785, 157, IEEE80211_CH_PASSIVE_ONLY},
11097                {5805, 161, IEEE80211_CH_PASSIVE_ONLY},
11098                {5825, 165, IEEE80211_CH_PASSIVE_ONLY}},
11099          },
11100
11101         {                       /* Europe */
11102          "ZZL",
11103          .bg_channels = 11,
11104          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
11105                 {2427, 4}, {2432, 5}, {2437, 6},
11106                 {2442, 7}, {2447, 8}, {2452, 9},
11107                 {2457, 10}, {2462, 11}},
11108          .a_channels = 13,
11109          .a = {{5180, 36, IEEE80211_CH_PASSIVE_ONLY},
11110                {5200, 40, IEEE80211_CH_PASSIVE_ONLY},
11111                {5220, 44, IEEE80211_CH_PASSIVE_ONLY},
11112                {5240, 48, IEEE80211_CH_PASSIVE_ONLY},
11113                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
11114                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
11115                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
11116                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
11117                {5745, 149, IEEE80211_CH_PASSIVE_ONLY},
11118                {5765, 153, IEEE80211_CH_PASSIVE_ONLY},
11119                {5785, 157, IEEE80211_CH_PASSIVE_ONLY},
11120                {5805, 161, IEEE80211_CH_PASSIVE_ONLY},
11121                {5825, 165, IEEE80211_CH_PASSIVE_ONLY}},
11122          }
11123 };
11124
11125 #define MAX_HW_RESTARTS 5
11126 static int ipw_up(struct ipw_priv *priv)
11127 {
11128         int rc, i, j;
11129
11130         if (priv->status & STATUS_EXIT_PENDING)
11131                 return -EIO;
11132
11133         if (cmdlog && !priv->cmdlog) {
11134                 priv->cmdlog = kmalloc(sizeof(*priv->cmdlog) * cmdlog,
11135                                        GFP_KERNEL);
11136                 if (priv->cmdlog == NULL) {
11137                         IPW_ERROR("Error allocating %d command log entries.\n",
11138                                   cmdlog);
11139                         return -ENOMEM;
11140                 } else {
11141                         memset(priv->cmdlog, 0, sizeof(*priv->cmdlog) * cmdlog);
11142                         priv->cmdlog_len = cmdlog;
11143                 }
11144         }
11145
11146         for (i = 0; i < MAX_HW_RESTARTS; i++) {
11147                 /* Load the microcode, firmware, and eeprom.
11148                  * Also start the clocks. */
11149                 rc = ipw_load(priv);
11150                 if (rc) {
11151                         IPW_ERROR("Unable to load firmware: %d\n", rc);
11152                         return rc;
11153                 }
11154
11155                 ipw_init_ordinals(priv);
11156                 if (!(priv->config & CFG_CUSTOM_MAC))
11157                         eeprom_parse_mac(priv, priv->mac_addr);
11158                 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
11159
11160                 for (j = 0; j < ARRAY_SIZE(ipw_geos); j++) {
11161                         if (!memcmp(&priv->eeprom[EEPROM_COUNTRY_CODE],
11162                                     ipw_geos[j].name, 3))
11163                                 break;
11164                 }
11165                 if (j == ARRAY_SIZE(ipw_geos)) {
11166                         IPW_WARNING("SKU [%c%c%c] not recognized.\n",
11167                                     priv->eeprom[EEPROM_COUNTRY_CODE + 0],
11168                                     priv->eeprom[EEPROM_COUNTRY_CODE + 1],
11169                                     priv->eeprom[EEPROM_COUNTRY_CODE + 2]);
11170                         j = 0;
11171                 }
11172                 if (ieee80211_set_geo(priv->ieee, &ipw_geos[j])) {
11173                         IPW_WARNING("Could not set geography.");
11174                         return 0;
11175                 }
11176
11177                 if (priv->status & STATUS_RF_KILL_SW) {
11178                         IPW_WARNING("Radio disabled by module parameter.\n");
11179                         return 0;
11180                 } else if (rf_kill_active(priv)) {
11181                         IPW_WARNING("Radio Frequency Kill Switch is On:\n"
11182                                     "Kill switch must be turned off for "
11183                                     "wireless networking to work.\n");
11184                         queue_delayed_work(priv->workqueue, &priv->rf_kill,
11185                                            2 * HZ);
11186                         return 0;
11187                 }
11188
11189                 rc = ipw_config(priv);
11190                 if (!rc) {
11191                         IPW_DEBUG_INFO("Configured device on count %i\n", i);
11192
11193                         /* If configure to try and auto-associate, kick
11194                          * off a scan. */
11195                         queue_work(priv->workqueue, &priv->request_scan);
11196
11197                         return 0;
11198                 }
11199
11200                 IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc);
11201                 IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n",
11202                                i, MAX_HW_RESTARTS);
11203
11204                 /* We had an error bringing up the hardware, so take it
11205                  * all the way back down so we can try again */
11206                 ipw_down(priv);
11207         }
11208
11209         /* tried to restart and config the device for as long as our
11210          * patience could withstand */
11211         IPW_ERROR("Unable to initialize device after %d attempts.\n", i);
11212
11213         return -EIO;
11214 }
11215
11216 static void ipw_bg_up(void *data)
11217 {
11218         struct ipw_priv *priv = data;
11219         mutex_lock(&priv->mutex);
11220         ipw_up(data);
11221         mutex_unlock(&priv->mutex);
11222 }
11223
11224 static void ipw_deinit(struct ipw_priv *priv)
11225 {
11226         int i;
11227
11228         if (priv->status & STATUS_SCANNING) {
11229                 IPW_DEBUG_INFO("Aborting scan during shutdown.\n");
11230                 ipw_abort_scan(priv);
11231         }
11232
11233         if (priv->status & STATUS_ASSOCIATED) {
11234                 IPW_DEBUG_INFO("Disassociating during shutdown.\n");
11235                 ipw_disassociate(priv);
11236         }
11237
11238         ipw_led_shutdown(priv);
11239
11240         /* Wait up to 1s for status to change to not scanning and not
11241          * associated (disassociation can take a while for a ful 802.11
11242          * exchange */
11243         for (i = 1000; i && (priv->status &
11244                              (STATUS_DISASSOCIATING |
11245                               STATUS_ASSOCIATED | STATUS_SCANNING)); i--)
11246                 udelay(10);
11247
11248         if (priv->status & (STATUS_DISASSOCIATING |
11249                             STATUS_ASSOCIATED | STATUS_SCANNING))
11250                 IPW_DEBUG_INFO("Still associated or scanning...\n");
11251         else
11252                 IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i);
11253
11254         /* Attempt to disable the card */
11255         ipw_send_card_disable(priv, 0);
11256
11257         priv->status &= ~STATUS_INIT;
11258 }
11259
11260 static void ipw_down(struct ipw_priv *priv)
11261 {
11262         int exit_pending = priv->status & STATUS_EXIT_PENDING;
11263
11264         priv->status |= STATUS_EXIT_PENDING;
11265
11266         if (ipw_is_init(priv))
11267                 ipw_deinit(priv);
11268
11269         /* Wipe out the EXIT_PENDING status bit if we are not actually
11270          * exiting the module */
11271         if (!exit_pending)
11272                 priv->status &= ~STATUS_EXIT_PENDING;
11273
11274         /* tell the device to stop sending interrupts */
11275         ipw_disable_interrupts(priv);
11276
11277         /* Clear all bits but the RF Kill */
11278         priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING;
11279         netif_carrier_off(priv->net_dev);
11280         netif_stop_queue(priv->net_dev);
11281
11282         ipw_stop_nic(priv);
11283
11284         ipw_led_radio_off(priv);
11285 }
11286
11287 static void ipw_bg_down(void *data)
11288 {
11289         struct ipw_priv *priv = data;
11290         mutex_lock(&priv->mutex);
11291         ipw_down(data);
11292         mutex_unlock(&priv->mutex);
11293 }
11294
11295 /* Called by register_netdev() */
11296 static int ipw_net_init(struct net_device *dev)
11297 {
11298         struct ipw_priv *priv = ieee80211_priv(dev);
11299         mutex_lock(&priv->mutex);
11300
11301         if (ipw_up(priv)) {
11302                 mutex_unlock(&priv->mutex);
11303                 return -EIO;
11304         }
11305
11306         mutex_unlock(&priv->mutex);
11307         return 0;
11308 }
11309
11310 /* PCI driver stuff */
11311 static struct pci_device_id card_ids[] = {
11312         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0},
11313         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0},
11314         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0},
11315         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0},
11316         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0},
11317         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0},
11318         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0},
11319         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0},
11320         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0},
11321         {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0},
11322         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0},
11323         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0},
11324         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0},
11325         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0},
11326         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0},
11327         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0},
11328         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0},
11329         {PCI_VENDOR_ID_INTEL, 0x104f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
11330         {PCI_VENDOR_ID_INTEL, 0x4220, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */
11331         {PCI_VENDOR_ID_INTEL, 0x4221, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */
11332         {PCI_VENDOR_ID_INTEL, 0x4223, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
11333         {PCI_VENDOR_ID_INTEL, 0x4224, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
11334
11335         /* required last entry */
11336         {0,}
11337 };
11338
11339 MODULE_DEVICE_TABLE(pci, card_ids);
11340
11341 static struct attribute *ipw_sysfs_entries[] = {
11342         &dev_attr_rf_kill.attr,
11343         &dev_attr_direct_dword.attr,
11344         &dev_attr_indirect_byte.attr,
11345         &dev_attr_indirect_dword.attr,
11346         &dev_attr_mem_gpio_reg.attr,
11347         &dev_attr_command_event_reg.attr,
11348         &dev_attr_nic_type.attr,
11349         &dev_attr_status.attr,
11350         &dev_attr_cfg.attr,
11351         &dev_attr_error.attr,
11352         &dev_attr_event_log.attr,
11353         &dev_attr_cmd_log.attr,
11354         &dev_attr_eeprom_delay.attr,
11355         &dev_attr_ucode_version.attr,
11356         &dev_attr_rtc.attr,
11357         &dev_attr_scan_age.attr,
11358         &dev_attr_led.attr,
11359         &dev_attr_speed_scan.attr,
11360         &dev_attr_net_stats.attr,
11361 #ifdef CONFIG_IPW2200_PROMISCUOUS
11362         &dev_attr_rtap_iface.attr,
11363         &dev_attr_rtap_filter.attr,
11364 #endif
11365         NULL
11366 };
11367
11368 static struct attribute_group ipw_attribute_group = {
11369         .name = NULL,           /* put in device directory */
11370         .attrs = ipw_sysfs_entries,
11371 };
11372
11373 #ifdef CONFIG_IPW2200_PROMISCUOUS
11374 static int ipw_prom_open(struct net_device *dev)
11375 {
11376         struct ipw_prom_priv *prom_priv = ieee80211_priv(dev);
11377         struct ipw_priv *priv = prom_priv->priv;
11378
11379         IPW_DEBUG_INFO("prom dev->open\n");
11380         netif_carrier_off(dev);
11381         netif_stop_queue(dev);
11382
11383         if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11384                 priv->sys_config.accept_all_data_frames = 1;
11385                 priv->sys_config.accept_non_directed_frames = 1;
11386                 priv->sys_config.accept_all_mgmt_bcpr = 1;
11387                 priv->sys_config.accept_all_mgmt_frames = 1;
11388
11389                 ipw_send_system_config(priv);
11390         }
11391
11392         return 0;
11393 }
11394
11395 static int ipw_prom_stop(struct net_device *dev)
11396 {
11397         struct ipw_prom_priv *prom_priv = ieee80211_priv(dev);
11398         struct ipw_priv *priv = prom_priv->priv;
11399
11400         IPW_DEBUG_INFO("prom dev->stop\n");
11401
11402         if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
11403                 priv->sys_config.accept_all_data_frames = 0;
11404                 priv->sys_config.accept_non_directed_frames = 0;
11405                 priv->sys_config.accept_all_mgmt_bcpr = 0;
11406                 priv->sys_config.accept_all_mgmt_frames = 0;
11407
11408                 ipw_send_system_config(priv);
11409         }
11410
11411         return 0;
11412 }
11413
11414 static int ipw_prom_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
11415 {
11416         IPW_DEBUG_INFO("prom dev->xmit\n");
11417         netif_stop_queue(dev);
11418         return -EOPNOTSUPP;
11419 }
11420
11421 static struct net_device_stats *ipw_prom_get_stats(struct net_device *dev)
11422 {
11423         struct ipw_prom_priv *prom_priv = ieee80211_priv(dev);
11424         return &prom_priv->ieee->stats;
11425 }
11426
11427 static int ipw_prom_alloc(struct ipw_priv *priv)
11428 {
11429         int rc = 0;
11430
11431         if (priv->prom_net_dev)
11432                 return -EPERM;
11433
11434         priv->prom_net_dev = alloc_ieee80211(sizeof(struct ipw_prom_priv));
11435         if (priv->prom_net_dev == NULL)
11436                 return -ENOMEM;
11437
11438         priv->prom_priv = ieee80211_priv(priv->prom_net_dev);
11439         priv->prom_priv->ieee = netdev_priv(priv->prom_net_dev);
11440         priv->prom_priv->priv = priv;
11441
11442         strcpy(priv->prom_net_dev->name, "rtap%d");
11443
11444         priv->prom_net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
11445         priv->prom_net_dev->open = ipw_prom_open;
11446         priv->prom_net_dev->stop = ipw_prom_stop;
11447         priv->prom_net_dev->get_stats = ipw_prom_get_stats;
11448         priv->prom_net_dev->hard_start_xmit = ipw_prom_hard_start_xmit;
11449
11450         priv->prom_priv->ieee->iw_mode = IW_MODE_MONITOR;
11451
11452         rc = register_netdev(priv->prom_net_dev);
11453         if (rc) {
11454                 free_ieee80211(priv->prom_net_dev);
11455                 priv->prom_net_dev = NULL;
11456                 return rc;
11457         }
11458
11459         return 0;
11460 }
11461
11462 static void ipw_prom_free(struct ipw_priv *priv)
11463 {
11464         if (!priv->prom_net_dev)
11465                 return;
11466
11467         unregister_netdev(priv->prom_net_dev);
11468         free_ieee80211(priv->prom_net_dev);
11469
11470         priv->prom_net_dev = NULL;
11471 }
11472
11473 #endif
11474
11475
11476 static int ipw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
11477 {
11478         int err = 0;
11479         struct net_device *net_dev;
11480         void __iomem *base;
11481         u32 length, val;
11482         struct ipw_priv *priv;
11483         int i;
11484
11485         net_dev = alloc_ieee80211(sizeof(struct ipw_priv));
11486         if (net_dev == NULL) {
11487                 err = -ENOMEM;
11488                 goto out;
11489         }
11490
11491         priv = ieee80211_priv(net_dev);
11492         priv->ieee = netdev_priv(net_dev);
11493
11494         priv->net_dev = net_dev;
11495         priv->pci_dev = pdev;
11496         ipw_debug_level = debug;
11497         spin_lock_init(&priv->irq_lock);
11498         spin_lock_init(&priv->lock);
11499         for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++)
11500                 INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
11501
11502         mutex_init(&priv->mutex);
11503         if (pci_enable_device(pdev)) {
11504                 err = -ENODEV;
11505                 goto out_free_ieee80211;
11506         }
11507
11508         pci_set_master(pdev);
11509
11510         err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
11511         if (!err)
11512                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
11513         if (err) {
11514                 printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
11515                 goto out_pci_disable_device;
11516         }
11517
11518         pci_set_drvdata(pdev, priv);
11519
11520         err = pci_request_regions(pdev, DRV_NAME);
11521         if (err)
11522                 goto out_pci_disable_device;
11523
11524         /* We disable the RETRY_TIMEOUT register (0x41) to keep
11525          * PCI Tx retries from interfering with C3 CPU state */
11526         pci_read_config_dword(pdev, 0x40, &val);
11527         if ((val & 0x0000ff00) != 0)
11528                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11529
11530         length = pci_resource_len(pdev, 0);
11531         priv->hw_len = length;
11532
11533         base = ioremap_nocache(pci_resource_start(pdev, 0), length);
11534         if (!base) {
11535                 err = -ENODEV;
11536                 goto out_pci_release_regions;
11537         }
11538
11539         priv->hw_base = base;
11540         IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length);
11541         IPW_DEBUG_INFO("pci_resource_base = %p\n", base);
11542
11543         err = ipw_setup_deferred_work(priv);
11544         if (err) {
11545                 IPW_ERROR("Unable to setup deferred work\n");
11546                 goto out_iounmap;
11547         }
11548
11549         ipw_sw_reset(priv, 1);
11550
11551         err = request_irq(pdev->irq, ipw_isr, IRQF_SHARED, DRV_NAME, priv);
11552         if (err) {
11553                 IPW_ERROR("Error allocating IRQ %d\n", pdev->irq);
11554                 goto out_destroy_workqueue;
11555         }
11556
11557         SET_MODULE_OWNER(net_dev);
11558         SET_NETDEV_DEV(net_dev, &pdev->dev);
11559
11560         mutex_lock(&priv->mutex);
11561
11562         priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit;
11563         priv->ieee->set_security = shim__set_security;
11564         priv->ieee->is_queue_full = ipw_net_is_queue_full;
11565
11566 #ifdef CONFIG_IPW2200_QOS
11567         priv->ieee->is_qos_active = ipw_is_qos_active;
11568         priv->ieee->handle_probe_response = ipw_handle_beacon;
11569         priv->ieee->handle_beacon = ipw_handle_probe_response;
11570         priv->ieee->handle_assoc_response = ipw_handle_assoc_response;
11571 #endif                          /* CONFIG_IPW2200_QOS */
11572
11573         priv->ieee->perfect_rssi = -20;
11574         priv->ieee->worst_rssi = -85;
11575
11576         net_dev->open = ipw_net_open;
11577         net_dev->stop = ipw_net_stop;
11578         net_dev->init = ipw_net_init;
11579         net_dev->get_stats = ipw_net_get_stats;
11580         net_dev->set_multicast_list = ipw_net_set_multicast_list;
11581         net_dev->set_mac_address = ipw_net_set_mac_address;
11582         priv->wireless_data.spy_data = &priv->ieee->spy_data;
11583         net_dev->wireless_data = &priv->wireless_data;
11584         net_dev->wireless_handlers = &ipw_wx_handler_def;
11585         net_dev->ethtool_ops = &ipw_ethtool_ops;
11586         net_dev->irq = pdev->irq;
11587         net_dev->base_addr = (unsigned long)priv->hw_base;
11588         net_dev->mem_start = pci_resource_start(pdev, 0);
11589         net_dev->mem_end = net_dev->mem_start + pci_resource_len(pdev, 0) - 1;
11590
11591         err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group);
11592         if (err) {
11593                 IPW_ERROR("failed to create sysfs device attributes\n");
11594                 mutex_unlock(&priv->mutex);
11595                 goto out_release_irq;
11596         }
11597
11598         mutex_unlock(&priv->mutex);
11599         err = register_netdev(net_dev);
11600         if (err) {
11601                 IPW_ERROR("failed to register network device\n");
11602                 goto out_remove_sysfs;
11603         }
11604
11605 #ifdef CONFIG_IPW2200_PROMISCUOUS
11606         if (rtap_iface) {
11607                 err = ipw_prom_alloc(priv);
11608                 if (err) {
11609                         IPW_ERROR("Failed to register promiscuous network "
11610                                   "device (error %d).\n", err);
11611                         unregister_netdev(priv->net_dev);
11612                         goto out_remove_sysfs;
11613                 }
11614         }
11615 #endif
11616
11617         printk(KERN_INFO DRV_NAME ": Detected geography %s (%d 802.11bg "
11618                "channels, %d 802.11a channels)\n",
11619                priv->ieee->geo.name, priv->ieee->geo.bg_channels,
11620                priv->ieee->geo.a_channels);
11621
11622         return 0;
11623
11624       out_remove_sysfs:
11625         sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11626       out_release_irq:
11627         free_irq(pdev->irq, priv);
11628       out_destroy_workqueue:
11629         destroy_workqueue(priv->workqueue);
11630         priv->workqueue = NULL;
11631       out_iounmap:
11632         iounmap(priv->hw_base);
11633       out_pci_release_regions:
11634         pci_release_regions(pdev);
11635       out_pci_disable_device:
11636         pci_disable_device(pdev);
11637         pci_set_drvdata(pdev, NULL);
11638       out_free_ieee80211:
11639         free_ieee80211(priv->net_dev);
11640       out:
11641         return err;
11642 }
11643
11644 static void ipw_pci_remove(struct pci_dev *pdev)
11645 {
11646         struct ipw_priv *priv = pci_get_drvdata(pdev);
11647         struct list_head *p, *q;
11648         int i;
11649
11650         if (!priv)
11651                 return;
11652
11653         mutex_lock(&priv->mutex);
11654
11655         priv->status |= STATUS_EXIT_PENDING;
11656         ipw_down(priv);
11657         sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11658
11659         mutex_unlock(&priv->mutex);
11660
11661         unregister_netdev(priv->net_dev);
11662
11663         if (priv->rxq) {
11664                 ipw_rx_queue_free(priv, priv->rxq);
11665                 priv->rxq = NULL;
11666         }
11667         ipw_tx_queue_free(priv);
11668
11669         if (priv->cmdlog) {
11670                 kfree(priv->cmdlog);
11671                 priv->cmdlog = NULL;
11672         }
11673         /* ipw_down will ensure that there is no more pending work
11674          * in the workqueue's, so we can safely remove them now. */
11675         cancel_delayed_work(&priv->adhoc_check);
11676         cancel_delayed_work(&priv->gather_stats);
11677         cancel_delayed_work(&priv->request_scan);
11678         cancel_delayed_work(&priv->rf_kill);
11679         cancel_delayed_work(&priv->scan_check);
11680         destroy_workqueue(priv->workqueue);
11681         priv->workqueue = NULL;
11682
11683         /* Free MAC hash list for ADHOC */
11684         for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) {
11685                 list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
11686                         list_del(p);
11687                         kfree(list_entry(p, struct ipw_ibss_seq, list));
11688                 }
11689         }
11690
11691         kfree(priv->error);
11692         priv->error = NULL;
11693
11694 #ifdef CONFIG_IPW2200_PROMISCUOUS
11695         ipw_prom_free(priv);
11696 #endif
11697
11698         free_irq(pdev->irq, priv);
11699         iounmap(priv->hw_base);
11700         pci_release_regions(pdev);
11701         pci_disable_device(pdev);
11702         pci_set_drvdata(pdev, NULL);
11703         free_ieee80211(priv->net_dev);
11704         free_firmware();
11705 }
11706
11707 #ifdef CONFIG_PM
11708 static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
11709 {
11710         struct ipw_priv *priv = pci_get_drvdata(pdev);
11711         struct net_device *dev = priv->net_dev;
11712
11713         printk(KERN_INFO "%s: Going into suspend...\n", dev->name);
11714
11715         /* Take down the device; powers it off, etc. */
11716         ipw_down(priv);
11717
11718         /* Remove the PRESENT state of the device */
11719         netif_device_detach(dev);
11720
11721         pci_save_state(pdev);
11722         pci_disable_device(pdev);
11723         pci_set_power_state(pdev, pci_choose_state(pdev, state));
11724
11725         return 0;
11726 }
11727
11728 static int ipw_pci_resume(struct pci_dev *pdev)
11729 {
11730         struct ipw_priv *priv = pci_get_drvdata(pdev);
11731         struct net_device *dev = priv->net_dev;
11732         u32 val;
11733
11734         printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name);
11735
11736         pci_set_power_state(pdev, PCI_D0);
11737         pci_enable_device(pdev);
11738         pci_restore_state(pdev);
11739
11740         /*
11741          * Suspend/Resume resets the PCI configuration space, so we have to
11742          * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
11743          * from interfering with C3 CPU state. pci_restore_state won't help
11744          * here since it only restores the first 64 bytes pci config header.
11745          */
11746         pci_read_config_dword(pdev, 0x40, &val);
11747         if ((val & 0x0000ff00) != 0)
11748                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11749
11750         /* Set the device back into the PRESENT state; this will also wake
11751          * the queue of needed */
11752         netif_device_attach(dev);
11753
11754         /* Bring the device back up */
11755         queue_work(priv->workqueue, &priv->up);
11756
11757         return 0;
11758 }
11759 #endif
11760
11761 static void ipw_pci_shutdown(struct pci_dev *pdev)
11762 {
11763         struct ipw_priv *priv = pci_get_drvdata(pdev);
11764
11765         /* Take down the device; powers it off, etc. */
11766         ipw_down(priv);
11767
11768         pci_disable_device(pdev);
11769 }
11770
11771 /* driver initialization stuff */
11772 static struct pci_driver ipw_driver = {
11773         .name = DRV_NAME,
11774         .id_table = card_ids,
11775         .probe = ipw_pci_probe,
11776         .remove = __devexit_p(ipw_pci_remove),
11777 #ifdef CONFIG_PM
11778         .suspend = ipw_pci_suspend,
11779         .resume = ipw_pci_resume,
11780 #endif
11781         .shutdown = ipw_pci_shutdown,
11782 };
11783
11784 static int __init ipw_init(void)
11785 {
11786         int ret;
11787
11788         printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
11789         printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
11790
11791         ret = pci_register_driver(&ipw_driver);
11792         if (ret) {
11793                 IPW_ERROR("Unable to initialize PCI module\n");
11794                 return ret;
11795         }
11796
11797         ret = driver_create_file(&ipw_driver.driver, &driver_attr_debug_level);
11798         if (ret) {
11799                 IPW_ERROR("Unable to create driver sysfs file\n");
11800                 pci_unregister_driver(&ipw_driver);
11801                 return ret;
11802         }
11803
11804         return ret;
11805 }
11806
11807 static void __exit ipw_exit(void)
11808 {
11809         driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level);
11810         pci_unregister_driver(&ipw_driver);
11811 }
11812
11813 module_param(disable, int, 0444);
11814 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
11815
11816 module_param(associate, int, 0444);
11817 MODULE_PARM_DESC(associate, "auto associate when scanning (default on)");
11818
11819 module_param(auto_create, int, 0444);
11820 MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)");
11821
11822 module_param(led, int, 0444);
11823 MODULE_PARM_DESC(led, "enable led control on some systems (default 0 off)\n");
11824
11825 module_param(debug, int, 0444);
11826 MODULE_PARM_DESC(debug, "debug output mask");
11827
11828 module_param(channel, int, 0444);
11829 MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])");
11830
11831 #ifdef CONFIG_IPW2200_PROMISCUOUS
11832 module_param(rtap_iface, int, 0444);
11833 MODULE_PARM_DESC(rtap_iface, "create the rtap interface (1 - create, default 0)");
11834 #endif
11835
11836 #ifdef CONFIG_IPW2200_QOS
11837 module_param(qos_enable, int, 0444);
11838 MODULE_PARM_DESC(qos_enable, "enable all QoS functionalitis");
11839
11840 module_param(qos_burst_enable, int, 0444);
11841 MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode");
11842
11843 module_param(qos_no_ack_mask, int, 0444);
11844 MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack");
11845
11846 module_param(burst_duration_CCK, int, 0444);
11847 MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value");
11848
11849 module_param(burst_duration_OFDM, int, 0444);
11850 MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value");
11851 #endif                          /* CONFIG_IPW2200_QOS */
11852
11853 #ifdef CONFIG_IPW2200_MONITOR
11854 module_param(mode, int, 0444);
11855 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
11856 #else
11857 module_param(mode, int, 0444);
11858 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)");
11859 #endif
11860
11861 module_param(bt_coexist, int, 0444);
11862 MODULE_PARM_DESC(bt_coexist, "enable bluetooth coexistence (default off)");
11863
11864 module_param(hwcrypto, int, 0444);
11865 MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default off)");
11866
11867 module_param(cmdlog, int, 0444);
11868 MODULE_PARM_DESC(cmdlog,
11869                  "allocate a ring buffer for logging firmware commands");
11870
11871 module_param(roaming, int, 0444);
11872 MODULE_PARM_DESC(roaming, "enable roaming support (default on)");
11873
11874 module_param(antenna, int, 0444);
11875 MODULE_PARM_DESC(antenna, "select antenna 1=Main, 3=Aux, default 0 [both], 2=slow_diversity (choose the one with lower background noise)");
11876
11877 module_exit(ipw_exit);
11878 module_init(ipw_init);