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

   1 /******************************************************************************
   2
   3   Copyright(c) 2003 - 2005 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 #define IPW2200_VERSION "git-1.0.8"
  37 #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2200/2915 Network Driver"
  38 #define DRV_COPYRIGHT   "Copyright(c) 2003-2005 Intel Corporation"
  39 #define DRV_VERSION     IPW2200_VERSION
  40
  41 #define ETH_P_80211_STATS (ETH_P_80211_RAW + 1)
  42
  43 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  44 MODULE_VERSION(DRV_VERSION);
  45 MODULE_AUTHOR(DRV_COPYRIGHT);
  46 MODULE_LICENSE("GPL");
  47
  48 static int cmdlog = 0;
  49 static int debug = 0;
  50 static int channel = 0;
  51 static int mode = 0;
  52
  53 static u32 ipw_debug_level;
  54 static int associate = 1;
  55 static int auto_create = 1;
  56 static int led = 0;
  57 static int disable = 0;
  58 static int hwcrypto = 1;
  59 static const char ipw_modes[] = {
  60         'a', 'b', 'g', '?'
  61 };
  62
  63 #ifdef CONFIG_IPW_QOS
  64 static int qos_enable = 0;
  65 static int qos_burst_enable = 0;
  66 static int qos_no_ack_mask = 0;
  67 static int burst_duration_CCK = 0;
  68 static int burst_duration_OFDM = 0;
  69
  70 static struct ieee80211_qos_parameters def_qos_parameters_OFDM = {
  71         {QOS_TX0_CW_MIN_OFDM, QOS_TX1_CW_MIN_OFDM, QOS_TX2_CW_MIN_OFDM,
  72          QOS_TX3_CW_MIN_OFDM},
  73         {QOS_TX0_CW_MAX_OFDM, QOS_TX1_CW_MAX_OFDM, QOS_TX2_CW_MAX_OFDM,
  74          QOS_TX3_CW_MAX_OFDM},
  75         {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
  76         {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
  77         {QOS_TX0_TXOP_LIMIT_OFDM, QOS_TX1_TXOP_LIMIT_OFDM,
  78          QOS_TX2_TXOP_LIMIT_OFDM, QOS_TX3_TXOP_LIMIT_OFDM}
  79 };
  80
  81 static struct ieee80211_qos_parameters def_qos_parameters_CCK = {
  82         {QOS_TX0_CW_MIN_CCK, QOS_TX1_CW_MIN_CCK, QOS_TX2_CW_MIN_CCK,
  83          QOS_TX3_CW_MIN_CCK},
  84         {QOS_TX0_CW_MAX_CCK, QOS_TX1_CW_MAX_CCK, QOS_TX2_CW_MAX_CCK,
  85          QOS_TX3_CW_MAX_CCK},
  86         {QOS_TX0_AIFS, QOS_TX1_AIFS, QOS_TX2_AIFS, QOS_TX3_AIFS},
  87         {QOS_TX0_ACM, QOS_TX1_ACM, QOS_TX2_ACM, QOS_TX3_ACM},
  88         {QOS_TX0_TXOP_LIMIT_CCK, QOS_TX1_TXOP_LIMIT_CCK, QOS_TX2_TXOP_LIMIT_CCK,
  89          QOS_TX3_TXOP_LIMIT_CCK}
  90 };
  91
  92 static struct ieee80211_qos_parameters def_parameters_OFDM = {
  93         {DEF_TX0_CW_MIN_OFDM, DEF_TX1_CW_MIN_OFDM, DEF_TX2_CW_MIN_OFDM,
  94          DEF_TX3_CW_MIN_OFDM},
  95         {DEF_TX0_CW_MAX_OFDM, DEF_TX1_CW_MAX_OFDM, DEF_TX2_CW_MAX_OFDM,
  96          DEF_TX3_CW_MAX_OFDM},
  97         {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
  98         {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
  99         {DEF_TX0_TXOP_LIMIT_OFDM, DEF_TX1_TXOP_LIMIT_OFDM,
 100          DEF_TX2_TXOP_LIMIT_OFDM, DEF_TX3_TXOP_LIMIT_OFDM}
 101 };
 102
 103 static struct ieee80211_qos_parameters def_parameters_CCK = {
 104         {DEF_TX0_CW_MIN_CCK, DEF_TX1_CW_MIN_CCK, DEF_TX2_CW_MIN_CCK,
 105          DEF_TX3_CW_MIN_CCK},
 106         {DEF_TX0_CW_MAX_CCK, DEF_TX1_CW_MAX_CCK, DEF_TX2_CW_MAX_CCK,
 107          DEF_TX3_CW_MAX_CCK},
 108         {DEF_TX0_AIFS, DEF_TX1_AIFS, DEF_TX2_AIFS, DEF_TX3_AIFS},
 109         {DEF_TX0_ACM, DEF_TX1_ACM, DEF_TX2_ACM, DEF_TX3_ACM},
 110         {DEF_TX0_TXOP_LIMIT_CCK, DEF_TX1_TXOP_LIMIT_CCK, DEF_TX2_TXOP_LIMIT_CCK,
 111          DEF_TX3_TXOP_LIMIT_CCK}
 112 };
 113
 114 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
 115
 116 static int from_priority_to_tx_queue[] = {
 117         IPW_TX_QUEUE_1, IPW_TX_QUEUE_2, IPW_TX_QUEUE_2, IPW_TX_QUEUE_1,
 118         IPW_TX_QUEUE_3, IPW_TX_QUEUE_3, IPW_TX_QUEUE_4, IPW_TX_QUEUE_4
 119 };
 120
 121 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv);
 122
 123 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct ieee80211_qos_parameters
 124                                        *qos_param);
 125 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct ieee80211_qos_information_element
 126                                      *qos_param);
 127 #endif                          /* CONFIG_IPW_QOS */
 128
 129 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev);
 130 static void ipw_remove_current_network(struct ipw_priv *priv);
 131 static void ipw_rx(struct ipw_priv *priv);
 132 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
 133                                 struct clx2_tx_queue *txq, int qindex);
 134 static int ipw_queue_reset(struct ipw_priv *priv);
 135
 136 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
 137                              int len, int sync);
 138
 139 static void ipw_tx_queue_free(struct ipw_priv *);
 140
 141 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *);
 142 static void ipw_rx_queue_free(struct ipw_priv *, struct ipw_rx_queue *);
 143 static void ipw_rx_queue_replenish(void *);
 144 static int ipw_up(struct ipw_priv *);
 145 static void ipw_bg_up(void *);
 146 static void ipw_down(struct ipw_priv *);
 147 static void ipw_bg_down(void *);
 148 static int ipw_config(struct ipw_priv *);
 149 static int init_supported_rates(struct ipw_priv *priv,
 150                                 struct ipw_supported_rates *prates);
 151 static void ipw_set_hwcrypto_keys(struct ipw_priv *);
 152 static void ipw_send_wep_keys(struct ipw_priv *, int);
 153
 154 static int ipw_is_valid_channel(struct ieee80211_device *, u8);
 155 static int ipw_channel_to_index(struct ieee80211_device *, u8);
 156 static u8 ipw_freq_to_channel(struct ieee80211_device *, u32);
 157 static int ipw_set_geo(struct ieee80211_device *, const struct ieee80211_geo *);
 158 static const struct ieee80211_geo *ipw_get_geo(struct ieee80211_device *);
 159
 160 static int snprint_line(char *buf, size_t count,
 161                         const u8 * data, u32 len, u32 ofs)
 162 {
 163         int out, i, j, l;
 164         char c;
 165
 166         out = snprintf(buf, count, "%08X", ofs);
 167
 168         for (l = 0, i = 0; i < 2; i++) {
 169                 out += snprintf(buf + out, count - out, " ");
 170                 for (j = 0; j < 8 && l < len; j++, l++)
 171                         out += snprintf(buf + out, count - out, "%02X ",
 172                                         data[(i * 8 + j)]);
 173                 for (; j < 8; j++)
 174                         out += snprintf(buf + out, count - out, "   ");
 175         }
 176
 177         out += snprintf(buf + out, count - out, " ");
 178         for (l = 0, i = 0; i < 2; i++) {
 179                 out += snprintf(buf + out, count - out, " ");
 180                 for (j = 0; j < 8 && l < len; j++, l++) {
 181                         c = data[(i * 8 + j)];
 182                         if (!isascii(c) || !isprint(c))
 183                                 c = '.';
 184
 185                         out += snprintf(buf + out, count - out, "%c", c);
 186                 }
 187
 188                 for (; j < 8; j++)
 189                         out += snprintf(buf + out, count - out, " ");
 190         }
 191
 192         return out;
 193 }
 194
 195 static void printk_buf(int level, const u8 * data, u32 len)
 196 {
 197         char line[81];
 198         u32 ofs = 0;
 199         if (!(ipw_debug_level & level))
 200                 return;
 201
 202         while (len) {
 203                 snprint_line(line, sizeof(line), &data[ofs],
 204                              min(len, 16U), ofs);
 205                 printk(KERN_DEBUG "%s\n", line);
 206                 ofs += 16;
 207                 len -= min(len, 16U);
 208         }
 209 }
 210
 211 static int snprintk_buf(u8 * output, size_t size, const u8 * data, size_t len)
 212 {
 213         size_t out = size;
 214         u32 ofs = 0;
 215         int total = 0;
 216
 217         while (size && len) {
 218                 out = snprint_line(output, size, &data[ofs],
 219                                    min_t(size_t, len, 16U), ofs);
 220
 221                 ofs += 16;
 222                 output += out;
 223                 size -= out;
 224                 len -= min_t(size_t, len, 16U);
 225                 total += out;
 226         }
 227         return total;
 228 }
 229
 230 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg);
 231 #define ipw_read_reg32(a, b) _ipw_read_reg32(a, b)
 232
 233 static u8 _ipw_read_reg8(struct ipw_priv *ipw, u32 reg);
 234 #define ipw_read_reg8(a, b) _ipw_read_reg8(a, b)
 235
 236 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value);
 237 static inline void ipw_write_reg8(struct ipw_priv *a, u32 b, u8 c)
 238 {
 239         IPW_DEBUG_IO("%s %d: write_indirect8(0x%08X, 0x%08X)\n", __FILE__,
 240                      __LINE__, (u32) (b), (u32) (c));
 241         _ipw_write_reg8(a, b, c);
 242 }
 243
 244 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value);
 245 static inline void ipw_write_reg16(struct ipw_priv *a, u32 b, u16 c)
 246 {
 247         IPW_DEBUG_IO("%s %d: write_indirect16(0x%08X, 0x%08X)\n", __FILE__,
 248                      __LINE__, (u32) (b), (u32) (c));
 249         _ipw_write_reg16(a, b, c);
 250 }
 251
 252 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value);
 253 static inline void ipw_write_reg32(struct ipw_priv *a, u32 b, u32 c)
 254 {
 255         IPW_DEBUG_IO("%s %d: write_indirect32(0x%08X, 0x%08X)\n", __FILE__,
 256                      __LINE__, (u32) (b), (u32) (c));
 257         _ipw_write_reg32(a, b, c);
 258 }
 259
 260 #define _ipw_write8(ipw, ofs, val) writeb((val), (ipw)->hw_base + (ofs))
 261 #define ipw_write8(ipw, ofs, val) \
 262  IPW_DEBUG_IO("%s %d: write_direct8(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
 263  _ipw_write8(ipw, ofs, val)
 264
 265 #define _ipw_write16(ipw, ofs, val) writew((val), (ipw)->hw_base + (ofs))
 266 #define ipw_write16(ipw, ofs, val) \
 267  IPW_DEBUG_IO("%s %d: write_direct16(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
 268  _ipw_write16(ipw, ofs, val)
 269
 270 #define _ipw_write32(ipw, ofs, val) writel((val), (ipw)->hw_base + (ofs))
 271 #define ipw_write32(ipw, ofs, val) \
 272  IPW_DEBUG_IO("%s %d: write_direct32(0x%08X, 0x%08X)\n", __FILE__, __LINE__, (u32)(ofs), (u32)(val)); \
 273  _ipw_write32(ipw, ofs, val)
 274
 275 #define _ipw_read8(ipw, ofs) readb((ipw)->hw_base + (ofs))
 276 static inline u8 __ipw_read8(char *f, u32 l, struct ipw_priv *ipw, u32 ofs)
 277 {
 278         IPW_DEBUG_IO("%s %d: read_direct8(0x%08X)\n", f, l, (u32) (ofs));
 279         return _ipw_read8(ipw, ofs);
 280 }
 281
 282 #define ipw_read8(ipw, ofs) __ipw_read8(__FILE__, __LINE__, ipw, ofs)
 283
 284 #define _ipw_read16(ipw, ofs) readw((ipw)->hw_base + (ofs))
 285 static inline u16 __ipw_read16(char *f, u32 l, struct ipw_priv *ipw, u32 ofs)
 286 {
 287         IPW_DEBUG_IO("%s %d: read_direct16(0x%08X)\n", f, l, (u32) (ofs));
 288         return _ipw_read16(ipw, ofs);
 289 }
 290
 291 #define ipw_read16(ipw, ofs) __ipw_read16(__FILE__, __LINE__, ipw, ofs)
 292
 293 #define _ipw_read32(ipw, ofs) readl((ipw)->hw_base + (ofs))
 294 static inline u32 __ipw_read32(char *f, u32 l, struct ipw_priv *ipw, u32 ofs)
 295 {
 296         IPW_DEBUG_IO("%s %d: read_direct32(0x%08X)\n", f, l, (u32) (ofs));
 297         return _ipw_read32(ipw, ofs);
 298 }
 299
 300 #define ipw_read32(ipw, ofs) __ipw_read32(__FILE__, __LINE__, ipw, ofs)
 301
 302 static void _ipw_read_indirect(struct ipw_priv *, u32, u8 *, int);
 303 static inline void __ipw_read_indirect(const char *f, int l,
 304                                        struct ipw_priv *a, u32 b, u8 * c, int d)
 305 {
 306         IPW_DEBUG_IO("%s %d: read_indirect(0x%08X) %d bytes\n", f, l, (u32) (b),
 307                      d);
 308         _ipw_read_indirect(a, b, c, d);
 309 }
 310
 311 #define ipw_read_indirect(a, b, c, d) __ipw_read_indirect(__FILE__, __LINE__, a, b, c, d)
 312
 313 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * data,
 314                                 int num);
 315 #define ipw_write_indirect(a, b, c, d) \
 316         IPW_DEBUG_IO("%s %d: write_indirect(0x%08X) %d bytes\n", __FILE__, __LINE__, (u32)(b), d); \
 317         _ipw_write_indirect(a, b, c, d)
 318
 319 /* indirect write s */
 320 static void _ipw_write_reg32(struct ipw_priv *priv, u32 reg, u32 value)
 321 {
 322         IPW_DEBUG_IO(" %p : reg = 0x%8X : value = 0x%8X\n", priv, reg, value);
 323         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
 324         _ipw_write32(priv, IPW_INDIRECT_DATA, value);
 325 }
 326
 327 static void _ipw_write_reg8(struct ipw_priv *priv, u32 reg, u8 value)
 328 {
 329         IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
 330         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK);
 331         _ipw_write8(priv, IPW_INDIRECT_DATA, value);
 332 }
 333
 334 static void _ipw_write_reg16(struct ipw_priv *priv, u32 reg, u16 value)
 335 {
 336         IPW_DEBUG_IO(" reg = 0x%8X : value = 0x%8X\n", reg, value);
 337         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK);
 338         _ipw_write16(priv, IPW_INDIRECT_DATA, value);
 339 }
 340
 341 /* indirect read s */
 342
 343 static u8 _ipw_read_reg8(struct ipw_priv *priv, u32 reg)
 344 {
 345         u32 word;
 346         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg & IPW_INDIRECT_ADDR_MASK);
 347         IPW_DEBUG_IO(" reg = 0x%8X : \n", reg);
 348         word = _ipw_read32(priv, IPW_INDIRECT_DATA);
 349         return (word >> ((reg & 0x3) * 8)) & 0xff;
 350 }
 351
 352 static u32 _ipw_read_reg32(struct ipw_priv *priv, u32 reg)
 353 {
 354         u32 value;
 355
 356         IPW_DEBUG_IO("%p : reg = 0x%08x\n", priv, reg);
 357
 358         _ipw_write32(priv, IPW_INDIRECT_ADDR, reg);
 359         value = _ipw_read32(priv, IPW_INDIRECT_DATA);
 360         IPW_DEBUG_IO(" reg = 0x%4X : value = 0x%4x \n", reg, value);
 361         return value;
 362 }
 363
 364 /* iterative/auto-increment 32 bit reads and writes */
 365 static void _ipw_read_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
 366                                int num)
 367 {
 368         u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK;
 369         u32 dif_len = addr - aligned_addr;
 370         u32 i;
 371
 372         IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
 373
 374         if (num <= 0) {
 375                 return;
 376         }
 377
 378         /* Read the first nibble byte by byte */
 379         if (unlikely(dif_len)) {
 380                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 381                 /* Start reading at aligned_addr + dif_len */
 382                 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--)
 383                         *buf++ = _ipw_read8(priv, IPW_INDIRECT_DATA + i);
 384                 aligned_addr += 4;
 385         }
 386
 387         _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
 388         for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
 389                 *(u32 *) buf = _ipw_read32(priv, IPW_AUTOINC_DATA);
 390
 391         /* Copy the last nibble */
 392         if (unlikely(num)) {
 393                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 394                 for (i = 0; num > 0; i++, num--)
 395                         *buf++ = ipw_read8(priv, IPW_INDIRECT_DATA + i);
 396         }
 397 }
 398
 399 static void _ipw_write_indirect(struct ipw_priv *priv, u32 addr, u8 * buf,
 400                                 int num)
 401 {
 402         u32 aligned_addr = addr & IPW_INDIRECT_ADDR_MASK;
 403         u32 dif_len = addr - aligned_addr;
 404         u32 i;
 405
 406         IPW_DEBUG_IO("addr = %i, buf = %p, num = %i\n", addr, buf, num);
 407
 408         if (num <= 0) {
 409                 return;
 410         }
 411
 412         /* Write the first nibble byte by byte */
 413         if (unlikely(dif_len)) {
 414                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 415                 /* Start reading at aligned_addr + dif_len */
 416                 for (i = dif_len; ((i < 4) && (num > 0)); i++, num--, buf++)
 417                         _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
 418                 aligned_addr += 4;
 419         }
 420
 421         _ipw_write32(priv, IPW_AUTOINC_ADDR, aligned_addr);
 422         for (; num >= 4; buf += 4, aligned_addr += 4, num -= 4)
 423                 _ipw_write32(priv, IPW_AUTOINC_DATA, *(u32 *) buf);
 424
 425         /* Copy the last nibble */
 426         if (unlikely(num)) {
 427                 _ipw_write32(priv, IPW_INDIRECT_ADDR, aligned_addr);
 428                 for (i = 0; num > 0; i++, num--, buf++)
 429                         _ipw_write8(priv, IPW_INDIRECT_DATA + i, *buf);
 430         }
 431 }
 432
 433 static void ipw_write_direct(struct ipw_priv *priv, u32 addr, void *buf,
 434                              int num)
 435 {
 436         memcpy_toio((priv->hw_base + addr), buf, num);
 437 }
 438
 439 static inline void ipw_set_bit(struct ipw_priv *priv, u32 reg, u32 mask)
 440 {
 441         ipw_write32(priv, reg, ipw_read32(priv, reg) | mask);
 442 }
 443
 444 static inline void ipw_clear_bit(struct ipw_priv *priv, u32 reg, u32 mask)
 445 {
 446         ipw_write32(priv, reg, ipw_read32(priv, reg) & ~mask);
 447 }
 448
 449 static inline void ipw_enable_interrupts(struct ipw_priv *priv)
 450 {
 451         if (priv->status & STATUS_INT_ENABLED)
 452                 return;
 453         priv->status |= STATUS_INT_ENABLED;
 454         ipw_write32(priv, IPW_INTA_MASK_R, IPW_INTA_MASK_ALL);
 455 }
 456
 457 static inline void ipw_disable_interrupts(struct ipw_priv *priv)
 458 {
 459         if (!(priv->status & STATUS_INT_ENABLED))
 460                 return;
 461         priv->status &= ~STATUS_INT_ENABLED;
 462         ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
 463 }
 464
 465 #ifdef CONFIG_IPW2200_DEBUG
 466 static char *ipw_error_desc(u32 val)
 467 {
 468         switch (val) {
 469         case IPW_FW_ERROR_OK:
 470                 return "ERROR_OK";
 471         case IPW_FW_ERROR_FAIL:
 472                 return "ERROR_FAIL";
 473         case IPW_FW_ERROR_MEMORY_UNDERFLOW:
 474                 return "MEMORY_UNDERFLOW";
 475         case IPW_FW_ERROR_MEMORY_OVERFLOW:
 476                 return "MEMORY_OVERFLOW";
 477         case IPW_FW_ERROR_BAD_PARAM:
 478                 return "BAD_PARAM";
 479         case IPW_FW_ERROR_BAD_CHECKSUM:
 480                 return "BAD_CHECKSUM";
 481         case IPW_FW_ERROR_NMI_INTERRUPT:
 482                 return "NMI_INTERRUPT";
 483         case IPW_FW_ERROR_BAD_DATABASE:
 484                 return "BAD_DATABASE";
 485         case IPW_FW_ERROR_ALLOC_FAIL:
 486                 return "ALLOC_FAIL";
 487         case IPW_FW_ERROR_DMA_UNDERRUN:
 488                 return "DMA_UNDERRUN";
 489         case IPW_FW_ERROR_DMA_STATUS:
 490                 return "DMA_STATUS";
 491         case IPW_FW_ERROR_DINO_ERROR:
 492                 return "DINO_ERROR";
 493         case IPW_FW_ERROR_EEPROM_ERROR:
 494                 return "EEPROM_ERROR";
 495         case IPW_FW_ERROR_SYSASSERT:
 496                 return "SYSASSERT";
 497         case IPW_FW_ERROR_FATAL_ERROR:
 498                 return "FATAL_ERROR";
 499         default:
 500                 return "UNKNOWN_ERROR";
 501         }
 502 }
 503
 504 static void ipw_dump_error_log(struct ipw_priv *priv,
 505                                struct ipw_fw_error *error)
 506 {
 507         u32 i;
 508
 509         if (!error) {
 510                 IPW_ERROR("Error allocating and capturing error log.  "
 511                           "Nothing to dump.\n");
 512                 return;
 513         }
 514
 515         IPW_ERROR("Start IPW Error Log Dump:\n");
 516         IPW_ERROR("Status: 0x%08X, Config: %08X\n",
 517                   error->status, error->config);
 518
 519         for (i = 0; i < error->elem_len; i++)
 520                 IPW_ERROR("%s %i 0x%08x  0x%08x  0x%08x  0x%08x  0x%08x\n",
 521                           ipw_error_desc(error->elem[i].desc),
 522                           error->elem[i].time,
 523                           error->elem[i].blink1,
 524                           error->elem[i].blink2,
 525                           error->elem[i].link1,
 526                           error->elem[i].link2, error->elem[i].data);
 527         for (i = 0; i < error->log_len; i++)
 528                 IPW_ERROR("%i\t0x%08x\t%i\n",
 529                           error->log[i].time,
 530                           error->log[i].data, error->log[i].event);
 531 }
 532 #endif
 533
 534 static inline int ipw_is_init(struct ipw_priv *priv)
 535 {
 536         return (priv->status & STATUS_INIT) ? 1 : 0;
 537 }
 538
 539 static int ipw_get_ordinal(struct ipw_priv *priv, u32 ord, void *val, u32 * len)
 540 {
 541         u32 addr, field_info, field_len, field_count, total_len;
 542
 543         IPW_DEBUG_ORD("ordinal = %i\n", ord);
 544
 545         if (!priv || !val || !len) {
 546                 IPW_DEBUG_ORD("Invalid argument\n");
 547                 return -EINVAL;
 548         }
 549
 550         /* verify device ordinal tables have been initialized */
 551         if (!priv->table0_addr || !priv->table1_addr || !priv->table2_addr) {
 552                 IPW_DEBUG_ORD("Access ordinals before initialization\n");
 553                 return -EINVAL;
 554         }
 555
 556         switch (IPW_ORD_TABLE_ID_MASK & ord) {
 557         case IPW_ORD_TABLE_0_MASK:
 558                 /*
 559                  * TABLE 0: Direct access to a table of 32 bit values
 560                  *
 561                  * This is a very simple table with the data directly
 562                  * read from the table
 563                  */
 564
 565                 /* remove the table id from the ordinal */
 566                 ord &= IPW_ORD_TABLE_VALUE_MASK;
 567
 568                 /* boundary check */
 569                 if (ord > priv->table0_len) {
 570                         IPW_DEBUG_ORD("ordinal value (%i) longer then "
 571                                       "max (%i)\n", ord, priv->table0_len);
 572                         return -EINVAL;
 573                 }
 574
 575                 /* verify we have enough room to store the value */
 576                 if (*len < sizeof(u32)) {
 577                         IPW_DEBUG_ORD("ordinal buffer length too small, "
 578                                       "need %zd\n", sizeof(u32));
 579                         return -EINVAL;
 580                 }
 581
 582                 IPW_DEBUG_ORD("Reading TABLE0[%i] from offset 0x%08x\n",
 583                               ord, priv->table0_addr + (ord << 2));
 584
 585                 *len = sizeof(u32);
 586                 ord <<= 2;
 587                 *((u32 *) val) = ipw_read32(priv, priv->table0_addr + ord);
 588                 break;
 589
 590         case IPW_ORD_TABLE_1_MASK:
 591                 /*
 592                  * TABLE 1: Indirect access to a table of 32 bit values
 593                  *
 594                  * This is a fairly large table of u32 values each
 595                  * representing starting addr for the data (which is
 596                  * also a u32)
 597                  */
 598
 599                 /* remove the table id from the ordinal */
 600                 ord &= IPW_ORD_TABLE_VALUE_MASK;
 601
 602                 /* boundary check */
 603                 if (ord > priv->table1_len) {
 604                         IPW_DEBUG_ORD("ordinal value too long\n");
 605                         return -EINVAL;
 606                 }
 607
 608                 /* verify we have enough room to store the value */
 609                 if (*len < sizeof(u32)) {
 610                         IPW_DEBUG_ORD("ordinal buffer length too small, "
 611                                       "need %zd\n", sizeof(u32));
 612                         return -EINVAL;
 613                 }
 614
 615                 *((u32 *) val) =
 616                     ipw_read_reg32(priv, (priv->table1_addr + (ord << 2)));
 617                 *len = sizeof(u32);
 618                 break;
 619
 620         case IPW_ORD_TABLE_2_MASK:
 621                 /*
 622                  * TABLE 2: Indirect access to a table of variable sized values
 623                  *
 624                  * This table consist of six values, each containing
 625                  *     - dword containing the starting offset of the data
 626                  *     - dword containing the lengh in the first 16bits
 627                  *       and the count in the second 16bits
 628                  */
 629
 630                 /* remove the table id from the ordinal */
 631                 ord &= IPW_ORD_TABLE_VALUE_MASK;
 632
 633                 /* boundary check */
 634                 if (ord > priv->table2_len) {
 635                         IPW_DEBUG_ORD("ordinal value too long\n");
 636                         return -EINVAL;
 637                 }
 638
 639                 /* get the address of statistic */
 640                 addr = ipw_read_reg32(priv, priv->table2_addr + (ord << 3));
 641
 642                 /* get the second DW of statistics ;
 643                  * two 16-bit words - first is length, second is count */
 644                 field_info =
 645                     ipw_read_reg32(priv,
 646                                    priv->table2_addr + (ord << 3) +
 647                                    sizeof(u32));
 648
 649                 /* get each entry length */
 650                 field_len = *((u16 *) & field_info);
 651
 652                 /* get number of entries */
 653                 field_count = *(((u16 *) & field_info) + 1);
 654
 655                 /* abort if not enought memory */
 656                 total_len = field_len * field_count;
 657                 if (total_len > *len) {
 658                         *len = total_len;
 659                         return -EINVAL;
 660                 }
 661
 662                 *len = total_len;
 663                 if (!total_len)
 664                         return 0;
 665
 666                 IPW_DEBUG_ORD("addr = 0x%08x, total_len = %i, "
 667                               "field_info = 0x%08x\n",
 668                               addr, total_len, field_info);
 669                 ipw_read_indirect(priv, addr, val, total_len);
 670                 break;
 671
 672         default:
 673                 IPW_DEBUG_ORD("Invalid ordinal!\n");
 674                 return -EINVAL;
 675
 676         }
 677
 678         return 0;
 679 }
 680
 681 static void ipw_init_ordinals(struct ipw_priv *priv)
 682 {
 683         priv->table0_addr = IPW_ORDINALS_TABLE_LOWER;
 684         priv->table0_len = ipw_read32(priv, priv->table0_addr);
 685
 686         IPW_DEBUG_ORD("table 0 offset at 0x%08x, len = %i\n",
 687                       priv->table0_addr, priv->table0_len);
 688
 689         priv->table1_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_1);
 690         priv->table1_len = ipw_read_reg32(priv, priv->table1_addr);
 691
 692         IPW_DEBUG_ORD("table 1 offset at 0x%08x, len = %i\n",
 693                       priv->table1_addr, priv->table1_len);
 694
 695         priv->table2_addr = ipw_read32(priv, IPW_ORDINALS_TABLE_2);
 696         priv->table2_len = ipw_read_reg32(priv, priv->table2_addr);
 697         priv->table2_len &= 0x0000ffff; /* use first two bytes */
 698
 699         IPW_DEBUG_ORD("table 2 offset at 0x%08x, len = %i\n",
 700                       priv->table2_addr, priv->table2_len);
 701
 702 }
 703
 704 u32 ipw_register_toggle(u32 reg)
 705 {
 706         reg &= ~IPW_START_STANDBY;
 707         if (reg & IPW_GATE_ODMA)
 708                 reg &= ~IPW_GATE_ODMA;
 709         if (reg & IPW_GATE_IDMA)
 710                 reg &= ~IPW_GATE_IDMA;
 711         if (reg & IPW_GATE_ADMA)
 712                 reg &= ~IPW_GATE_ADMA;
 713         return reg;
 714 }
 715
 716 /*
 717  * LED behavior:
 718  * - On radio ON, turn on any LEDs that require to be on during start
 719  * - On initialization, start unassociated blink
 720  * - On association, disable unassociated blink
 721  * - On disassociation, start unassociated blink
 722  * - On radio OFF, turn off any LEDs started during radio on
 723  *
 724  */
 725 #define LD_TIME_LINK_ON 300
 726 #define LD_TIME_LINK_OFF 2700
 727 #define LD_TIME_ACT_ON 250
 728
 729 void ipw_led_link_on(struct ipw_priv *priv)
 730 {
 731         unsigned long flags;
 732         u32 led;
 733
 734         /* If configured to not use LEDs, or nic_type is 1,
 735          * then we don't toggle a LINK led */
 736         if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
 737                 return;
 738
 739         spin_lock_irqsave(&priv->lock, flags);
 740
 741         if (!(priv->status & STATUS_RF_KILL_MASK) &&
 742             !(priv->status & STATUS_LED_LINK_ON)) {
 743                 IPW_DEBUG_LED("Link LED On\n");
 744                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 745                 led |= priv->led_association_on;
 746
 747                 led = ipw_register_toggle(led);
 748
 749                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 750                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 751
 752                 priv->status |= STATUS_LED_LINK_ON;
 753
 754                 /* If we aren't associated, schedule turning the LED off */
 755                 if (!(priv->status & STATUS_ASSOCIATED))
 756                         queue_delayed_work(priv->workqueue,
 757                                            &priv->led_link_off,
 758                                            LD_TIME_LINK_ON);
 759         }
 760
 761         spin_unlock_irqrestore(&priv->lock, flags);
 762 }
 763
 764 static void ipw_bg_led_link_on(void *data)
 765 {
 766         struct ipw_priv *priv = data;
 767         down(&priv->sem);
 768         ipw_led_link_on(data);
 769         up(&priv->sem);
 770 }
 771
 772 void ipw_led_link_off(struct ipw_priv *priv)
 773 {
 774         unsigned long flags;
 775         u32 led;
 776
 777         /* If configured not to use LEDs, or nic type is 1,
 778          * then we don't goggle the LINK led. */
 779         if (priv->config & CFG_NO_LED || priv->nic_type == EEPROM_NIC_TYPE_1)
 780                 return;
 781
 782         spin_lock_irqsave(&priv->lock, flags);
 783
 784         if (priv->status & STATUS_LED_LINK_ON) {
 785                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 786                 led &= priv->led_association_off;
 787                 led = ipw_register_toggle(led);
 788
 789                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 790                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 791
 792                 IPW_DEBUG_LED("Link LED Off\n");
 793
 794                 priv->status &= ~STATUS_LED_LINK_ON;
 795
 796                 /* If we aren't associated and the radio is on, schedule
 797                  * turning the LED on (blink while unassociated) */
 798                 if (!(priv->status & STATUS_RF_KILL_MASK) &&
 799                     !(priv->status & STATUS_ASSOCIATED))
 800                         queue_delayed_work(priv->workqueue, &priv->led_link_on,
 801                                            LD_TIME_LINK_OFF);
 802
 803         }
 804
 805         spin_unlock_irqrestore(&priv->lock, flags);
 806 }
 807
 808 static void ipw_bg_led_link_off(void *data)
 809 {
 810         struct ipw_priv *priv = data;
 811         down(&priv->sem);
 812         ipw_led_link_off(data);
 813         up(&priv->sem);
 814 }
 815
 816 static inline void __ipw_led_activity_on(struct ipw_priv *priv)
 817 {
 818         u32 led;
 819
 820         if (priv->config & CFG_NO_LED)
 821                 return;
 822
 823         if (priv->status & STATUS_RF_KILL_MASK)
 824                 return;
 825
 826         if (!(priv->status & STATUS_LED_ACT_ON)) {
 827                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 828                 led |= priv->led_activity_on;
 829
 830                 led = ipw_register_toggle(led);
 831
 832                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 833                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 834
 835                 IPW_DEBUG_LED("Activity LED On\n");
 836
 837                 priv->status |= STATUS_LED_ACT_ON;
 838
 839                 cancel_delayed_work(&priv->led_act_off);
 840                 queue_delayed_work(priv->workqueue, &priv->led_act_off,
 841                                    LD_TIME_ACT_ON);
 842         } else {
 843                 /* Reschedule LED off for full time period */
 844                 cancel_delayed_work(&priv->led_act_off);
 845                 queue_delayed_work(priv->workqueue, &priv->led_act_off,
 846                                    LD_TIME_ACT_ON);
 847         }
 848 }
 849
 850 void ipw_led_activity_on(struct ipw_priv *priv)
 851 {
 852         unsigned long flags;
 853         spin_lock_irqsave(&priv->lock, flags);
 854         __ipw_led_activity_on(priv);
 855         spin_unlock_irqrestore(&priv->lock, flags);
 856 }
 857
 858 void ipw_led_activity_off(struct ipw_priv *priv)
 859 {
 860         unsigned long flags;
 861         u32 led;
 862
 863         if (priv->config & CFG_NO_LED)
 864                 return;
 865
 866         spin_lock_irqsave(&priv->lock, flags);
 867
 868         if (priv->status & STATUS_LED_ACT_ON) {
 869                 led = ipw_read_reg32(priv, IPW_EVENT_REG);
 870                 led &= priv->led_activity_off;
 871
 872                 led = ipw_register_toggle(led);
 873
 874                 IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 875                 ipw_write_reg32(priv, IPW_EVENT_REG, led);
 876
 877                 IPW_DEBUG_LED("Activity LED Off\n");
 878
 879                 priv->status &= ~STATUS_LED_ACT_ON;
 880         }
 881
 882         spin_unlock_irqrestore(&priv->lock, flags);
 883 }
 884
 885 static void ipw_bg_led_activity_off(void *data)
 886 {
 887         struct ipw_priv *priv = data;
 888         down(&priv->sem);
 889         ipw_led_activity_off(data);
 890         up(&priv->sem);
 891 }
 892
 893 void ipw_led_band_on(struct ipw_priv *priv)
 894 {
 895         unsigned long flags;
 896         u32 led;
 897
 898         /* Only nic type 1 supports mode LEDs */
 899         if (priv->config & CFG_NO_LED ||
 900             priv->nic_type != EEPROM_NIC_TYPE_1 || !priv->assoc_network)
 901                 return;
 902
 903         spin_lock_irqsave(&priv->lock, flags);
 904
 905         led = ipw_read_reg32(priv, IPW_EVENT_REG);
 906         if (priv->assoc_network->mode == IEEE_A) {
 907                 led |= priv->led_ofdm_on;
 908                 led &= priv->led_association_off;
 909                 IPW_DEBUG_LED("Mode LED On: 802.11a\n");
 910         } else if (priv->assoc_network->mode == IEEE_G) {
 911                 led |= priv->led_ofdm_on;
 912                 led |= priv->led_association_on;
 913                 IPW_DEBUG_LED("Mode LED On: 802.11g\n");
 914         } else {
 915                 led &= priv->led_ofdm_off;
 916                 led |= priv->led_association_on;
 917                 IPW_DEBUG_LED("Mode LED On: 802.11b\n");
 918         }
 919
 920         led = ipw_register_toggle(led);
 921
 922         IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 923         ipw_write_reg32(priv, IPW_EVENT_REG, led);
 924
 925         spin_unlock_irqrestore(&priv->lock, flags);
 926 }
 927
 928 void ipw_led_band_off(struct ipw_priv *priv)
 929 {
 930         unsigned long flags;
 931         u32 led;
 932
 933         /* Only nic type 1 supports mode LEDs */
 934         if (priv->config & CFG_NO_LED || priv->nic_type != EEPROM_NIC_TYPE_1)
 935                 return;
 936
 937         spin_lock_irqsave(&priv->lock, flags);
 938
 939         led = ipw_read_reg32(priv, IPW_EVENT_REG);
 940         led &= priv->led_ofdm_off;
 941         led &= priv->led_association_off;
 942
 943         led = ipw_register_toggle(led);
 944
 945         IPW_DEBUG_LED("Reg: 0x%08X\n", led);
 946         ipw_write_reg32(priv, IPW_EVENT_REG, led);
 947
 948         spin_unlock_irqrestore(&priv->lock, flags);
 949 }
 950
 951 void ipw_led_radio_on(struct ipw_priv *priv)
 952 {
 953         ipw_led_link_on(priv);
 954 }
 955
 956 void ipw_led_radio_off(struct ipw_priv *priv)
 957 {
 958         ipw_led_activity_off(priv);
 959         ipw_led_link_off(priv);
 960 }
 961
 962 void ipw_led_link_up(struct ipw_priv *priv)
 963 {
 964         /* Set the Link Led on for all nic types */
 965         ipw_led_link_on(priv);
 966 }
 967
 968 void ipw_led_link_down(struct ipw_priv *priv)
 969 {
 970         ipw_led_activity_off(priv);
 971         ipw_led_link_off(priv);
 972
 973         if (priv->status & STATUS_RF_KILL_MASK)
 974                 ipw_led_radio_off(priv);
 975 }
 976
 977 void ipw_led_init(struct ipw_priv *priv)
 978 {
 979         priv->nic_type = priv->eeprom[EEPROM_NIC_TYPE];
 980
 981         /* Set the default PINs for the link and activity leds */
 982         priv->led_activity_on = IPW_ACTIVITY_LED;
 983         priv->led_activity_off = ~(IPW_ACTIVITY_LED);
 984
 985         priv->led_association_on = IPW_ASSOCIATED_LED;
 986         priv->led_association_off = ~(IPW_ASSOCIATED_LED);
 987
 988         /* Set the default PINs for the OFDM leds */
 989         priv->led_ofdm_on = IPW_OFDM_LED;
 990         priv->led_ofdm_off = ~(IPW_OFDM_LED);
 991
 992         switch (priv->nic_type) {
 993         case EEPROM_NIC_TYPE_1:
 994                 /* In this NIC type, the LEDs are reversed.... */
 995                 priv->led_activity_on = IPW_ASSOCIATED_LED;
 996                 priv->led_activity_off = ~(IPW_ASSOCIATED_LED);
 997                 priv->led_association_on = IPW_ACTIVITY_LED;
 998                 priv->led_association_off = ~(IPW_ACTIVITY_LED);
 999
1000                 if (!(priv->config & CFG_NO_LED))
1001                         ipw_led_band_on(priv);
1002
1003                 /* And we don't blink link LEDs for this nic, so
1004                  * just return here */
1005                 return;
1006
1007         case EEPROM_NIC_TYPE_3:
1008         case EEPROM_NIC_TYPE_2:
1009         case EEPROM_NIC_TYPE_4:
1010         case EEPROM_NIC_TYPE_0:
1011                 break;
1012
1013         default:
1014                 IPW_DEBUG_INFO("Unknown NIC type from EEPROM: %d\n",
1015                                priv->nic_type);
1016                 priv->nic_type = EEPROM_NIC_TYPE_0;
1017                 break;
1018         }
1019
1020         if (!(priv->config & CFG_NO_LED)) {
1021                 if (priv->status & STATUS_ASSOCIATED)
1022                         ipw_led_link_on(priv);
1023                 else
1024                         ipw_led_link_off(priv);
1025         }
1026 }
1027
1028 void ipw_led_shutdown(struct ipw_priv *priv)
1029 {
1030         ipw_led_activity_off(priv);
1031         ipw_led_link_off(priv);
1032         ipw_led_band_off(priv);
1033         cancel_delayed_work(&priv->led_link_on);
1034         cancel_delayed_work(&priv->led_link_off);
1035         cancel_delayed_work(&priv->led_act_off);
1036 }
1037
1038 /*
1039  * The following adds a new attribute to the sysfs representation
1040  * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
1041  * used for controling the debug level.
1042  *
1043  * See the level definitions in ipw for details.
1044  */
1045 static ssize_t show_debug_level(struct device_driver *d, char *buf)
1046 {
1047         return sprintf(buf, "0x%08X\n", ipw_debug_level);
1048 }
1049
1050 static ssize_t store_debug_level(struct device_driver *d, const char *buf,
1051                                  size_t count)
1052 {
1053         char *p = (char *)buf;
1054         u32 val;
1055
1056         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1057                 p++;
1058                 if (p[0] == 'x' || p[0] == 'X')
1059                         p++;
1060                 val = simple_strtoul(p, &p, 16);
1061         } else
1062                 val = simple_strtoul(p, &p, 10);
1063         if (p == buf)
1064                 printk(KERN_INFO DRV_NAME
1065                        ": %s is not in hex or decimal form.\n", buf);
1066         else
1067                 ipw_debug_level = val;
1068
1069         return strnlen(buf, count);
1070 }
1071
1072 static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
1073                    show_debug_level, store_debug_level);
1074
1075 static inline u32 ipw_get_event_log_len(struct ipw_priv *priv)
1076 {
1077         return ipw_read_reg32(priv, ipw_read32(priv, IPW_EVENT_LOG));
1078 }
1079
1080 static void ipw_capture_event_log(struct ipw_priv *priv,
1081                                   u32 log_len, struct ipw_event *log)
1082 {
1083         u32 base;
1084
1085         if (log_len) {
1086                 base = ipw_read32(priv, IPW_EVENT_LOG);
1087                 ipw_read_indirect(priv, base + sizeof(base) + sizeof(u32),
1088                                   (u8 *) log, sizeof(*log) * log_len);
1089         }
1090 }
1091
1092 static struct ipw_fw_error *ipw_alloc_error_log(struct ipw_priv *priv)
1093 {
1094         struct ipw_fw_error *error;
1095         u32 log_len = ipw_get_event_log_len(priv);
1096         u32 base = ipw_read32(priv, IPW_ERROR_LOG);
1097         u32 elem_len = ipw_read_reg32(priv, base);
1098
1099         error = kmalloc(sizeof(*error) +
1100                         sizeof(*error->elem) * elem_len +
1101                         sizeof(*error->log) * log_len, GFP_ATOMIC);
1102         if (!error) {
1103                 IPW_ERROR("Memory allocation for firmware error log "
1104                           "failed.\n");
1105                 return NULL;
1106         }
1107         error->jiffies = jiffies;
1108         error->status = priv->status;
1109         error->config = priv->config;
1110         error->elem_len = elem_len;
1111         error->log_len = log_len;
1112         error->elem = (struct ipw_error_elem *)error->payload;
1113         error->log = (struct ipw_event *)(error->elem + elem_len);
1114
1115         ipw_capture_event_log(priv, log_len, error->log);
1116
1117         if (elem_len)
1118                 ipw_read_indirect(priv, base + sizeof(base), (u8 *) error->elem,
1119                                   sizeof(*error->elem) * elem_len);
1120
1121         return error;
1122 }
1123
1124 static void ipw_free_error_log(struct ipw_fw_error *error)
1125 {
1126         if (error)
1127                 kfree(error);
1128 }
1129
1130 static ssize_t show_event_log(struct device *d,
1131                               struct device_attribute *attr, char *buf)
1132 {
1133         struct ipw_priv *priv = dev_get_drvdata(d);
1134         u32 log_len = ipw_get_event_log_len(priv);
1135         struct ipw_event log[log_len];
1136         u32 len = 0, i;
1137
1138         ipw_capture_event_log(priv, log_len, log);
1139
1140         len += snprintf(buf + len, PAGE_SIZE - len, "%08X", log_len);
1141         for (i = 0; i < log_len; i++)
1142                 len += snprintf(buf + len, PAGE_SIZE - len,
1143                                 "\n%08X%08X%08X",
1144                                 log[i].time, log[i].event, log[i].data);
1145         len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1146         return len;
1147 }
1148
1149 static DEVICE_ATTR(event_log, S_IRUGO, show_event_log, NULL);
1150
1151 static ssize_t show_error(struct device *d,
1152                           struct device_attribute *attr, char *buf)
1153 {
1154         struct ipw_priv *priv = dev_get_drvdata(d);
1155         u32 len = 0, i;
1156         if (!priv->error)
1157                 return 0;
1158         len += snprintf(buf + len, PAGE_SIZE - len,
1159                         "%08lX%08X%08X%08X",
1160                         priv->error->jiffies,
1161                         priv->error->status,
1162                         priv->error->config, priv->error->elem_len);
1163         for (i = 0; i < priv->error->elem_len; i++)
1164                 len += snprintf(buf + len, PAGE_SIZE - len,
1165                                 "\n%08X%08X%08X%08X%08X%08X%08X",
1166                                 priv->error->elem[i].time,
1167                                 priv->error->elem[i].desc,
1168                                 priv->error->elem[i].blink1,
1169                                 priv->error->elem[i].blink2,
1170                                 priv->error->elem[i].link1,
1171                                 priv->error->elem[i].link2,
1172                                 priv->error->elem[i].data);
1173
1174         len += snprintf(buf + len, PAGE_SIZE - len,
1175                         "\n%08X", priv->error->log_len);
1176         for (i = 0; i < priv->error->log_len; i++)
1177                 len += snprintf(buf + len, PAGE_SIZE - len,
1178                                 "\n%08X%08X%08X",
1179                                 priv->error->log[i].time,
1180                                 priv->error->log[i].event,
1181                                 priv->error->log[i].data);
1182         len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1183         return len;
1184 }
1185
1186 static ssize_t clear_error(struct device *d,
1187                            struct device_attribute *attr,
1188                            const char *buf, size_t count)
1189 {
1190         struct ipw_priv *priv = dev_get_drvdata(d);
1191         if (priv->error) {
1192                 ipw_free_error_log(priv->error);
1193                 priv->error = NULL;
1194         }
1195         return count;
1196 }
1197
1198 static DEVICE_ATTR(error, S_IRUGO | S_IWUSR, show_error, clear_error);
1199
1200 static ssize_t show_cmd_log(struct device *d,
1201                             struct device_attribute *attr, char *buf)
1202 {
1203         struct ipw_priv *priv = dev_get_drvdata(d);
1204         u32 len = 0, i;
1205         if (!priv->cmdlog)
1206                 return 0;
1207         for (i = (priv->cmdlog_pos + 1) % priv->cmdlog_len;
1208              (i != priv->cmdlog_pos) && (PAGE_SIZE - len);
1209              i = (i + 1) % priv->cmdlog_len) {
1210                 len +=
1211                     snprintf(buf + len, PAGE_SIZE - len,
1212                              "\n%08lX%08X%08X%08X\n", priv->cmdlog[i].jiffies,
1213                              priv->cmdlog[i].retcode, priv->cmdlog[i].cmd.cmd,
1214                              priv->cmdlog[i].cmd.len);
1215                 len +=
1216                     snprintk_buf(buf + len, PAGE_SIZE - len,
1217                                  (u8 *) priv->cmdlog[i].cmd.param,
1218                                  priv->cmdlog[i].cmd.len);
1219                 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1220         }
1221         len += snprintf(buf + len, PAGE_SIZE - len, "\n");
1222         return len;
1223 }
1224
1225 static DEVICE_ATTR(cmd_log, S_IRUGO, show_cmd_log, NULL);
1226
1227 static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
1228                              char *buf)
1229 {
1230         struct ipw_priv *priv = dev_get_drvdata(d);
1231         return sprintf(buf, "%d\n", priv->ieee->scan_age);
1232 }
1233
1234 static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
1235                               const char *buf, size_t count)
1236 {
1237         struct ipw_priv *priv = dev_get_drvdata(d);
1238 #ifdef CONFIG_IPW2200_DEBUG
1239         struct net_device *dev = priv->net_dev;
1240 #endif
1241         char buffer[] = "00000000";
1242         unsigned long len =
1243             (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
1244         unsigned long val;
1245         char *p = buffer;
1246
1247         IPW_DEBUG_INFO("enter\n");
1248
1249         strncpy(buffer, buf, len);
1250         buffer[len] = 0;
1251
1252         if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
1253                 p++;
1254                 if (p[0] == 'x' || p[0] == 'X')
1255                         p++;
1256                 val = simple_strtoul(p, &p, 16);
1257         } else
1258                 val = simple_strtoul(p, &p, 10);
1259         if (p == buffer) {
1260                 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
1261         } else {
1262                 priv->ieee->scan_age = val;
1263                 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
1264         }
1265
1266         IPW_DEBUG_INFO("exit\n");
1267         return len;
1268 }
1269
1270 static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);
1271
1272 static ssize_t show_led(struct device *d, struct device_attribute *attr,
1273                         char *buf)
1274 {
1275         struct ipw_priv *priv = dev_get_drvdata(d);
1276         return sprintf(buf, "%d\n", (priv->config & CFG_NO_LED) ? 0 : 1);
1277 }
1278
1279 static ssize_t store_led(struct device *d, struct device_attribute *attr,
1280                          const char *buf, size_t count)
1281 {
1282         struct ipw_priv *priv = dev_get_drvdata(d);
1283
1284         IPW_DEBUG_INFO("enter\n");
1285
1286         if (count == 0)
1287                 return 0;
1288
1289         if (*buf == 0) {
1290                 IPW_DEBUG_LED("Disabling LED control.\n");
1291                 priv->config |= CFG_NO_LED;
1292                 ipw_led_shutdown(priv);
1293         } else {
1294                 IPW_DEBUG_LED("Enabling LED control.\n");
1295                 priv->config &= ~CFG_NO_LED;
1296                 ipw_led_init(priv);
1297         }
1298
1299         IPW_DEBUG_INFO("exit\n");
1300         return count;
1301 }
1302
1303 static DEVICE_ATTR(led, S_IWUSR | S_IRUGO, show_led, store_led);
1304
1305 static ssize_t show_status(struct device *d,
1306                            struct device_attribute *attr, char *buf)
1307 {
1308         struct ipw_priv *p = d->driver_data;
1309         return sprintf(buf, "0x%08x\n", (int)p->status);
1310 }
1311
1312 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
1313
1314 static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
1315                         char *buf)
1316 {
1317         struct ipw_priv *p = d->driver_data;
1318         return sprintf(buf, "0x%08x\n", (int)p->config);
1319 }
1320
1321 static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
1322
1323 static ssize_t show_nic_type(struct device *d,
1324                              struct device_attribute *attr, char *buf)
1325 {
1326         struct ipw_priv *priv = d->driver_data;
1327         return sprintf(buf, "TYPE: %d\n", priv->nic_type);
1328 }
1329
1330 static DEVICE_ATTR(nic_type, S_IRUGO, show_nic_type, NULL);
1331
1332 static ssize_t show_ucode_version(struct device *d,
1333                                   struct device_attribute *attr, char *buf)
1334 {
1335         u32 len = sizeof(u32), tmp = 0;
1336         struct ipw_priv *p = d->driver_data;
1337
1338         if (ipw_get_ordinal(p, IPW_ORD_STAT_UCODE_VERSION, &tmp, &len))
1339                 return 0;
1340
1341         return sprintf(buf, "0x%08x\n", tmp);
1342 }
1343
1344 static DEVICE_ATTR(ucode_version, S_IWUSR | S_IRUGO, show_ucode_version, NULL);
1345
1346 static ssize_t show_rtc(struct device *d, struct device_attribute *attr,
1347                         char *buf)
1348 {
1349         u32 len = sizeof(u32), tmp = 0;
1350         struct ipw_priv *p = d->driver_data;
1351
1352         if (ipw_get_ordinal(p, IPW_ORD_STAT_RTC, &tmp, &len))
1353                 return 0;
1354
1355         return sprintf(buf, "0x%08x\n", tmp);
1356 }
1357
1358 static DEVICE_ATTR(rtc, S_IWUSR | S_IRUGO, show_rtc, NULL);
1359
1360 /*
1361  * Add a device attribute to view/control the delay between eeprom
1362  * operations.
1363  */
1364 static ssize_t show_eeprom_delay(struct device *d,
1365                                  struct device_attribute *attr, char *buf)
1366 {
1367         int n = ((struct ipw_priv *)d->driver_data)->eeprom_delay;
1368         return sprintf(buf, "%i\n", n);
1369 }
1370 static ssize_t store_eeprom_delay(struct device *d,
1371                                   struct device_attribute *attr,
1372                                   const char *buf, size_t count)
1373 {
1374         struct ipw_priv *p = d->driver_data;
1375         sscanf(buf, "%i", &p->eeprom_delay);
1376         return strnlen(buf, count);
1377 }
1378
1379 static DEVICE_ATTR(eeprom_delay, S_IWUSR | S_IRUGO,
1380                    show_eeprom_delay, store_eeprom_delay);
1381
1382 static ssize_t show_command_event_reg(struct device *d,
1383                                       struct device_attribute *attr, char *buf)
1384 {
1385         u32 reg = 0;
1386         struct ipw_priv *p = d->driver_data;
1387
1388         reg = ipw_read_reg32(p, IPW_INTERNAL_CMD_EVENT);
1389         return sprintf(buf, "0x%08x\n", reg);
1390 }
1391 static ssize_t store_command_event_reg(struct device *d,
1392                                        struct device_attribute *attr,
1393                                        const char *buf, size_t count)
1394 {
1395         u32 reg;
1396         struct ipw_priv *p = d->driver_data;
1397
1398         sscanf(buf, "%x", &reg);
1399         ipw_write_reg32(p, IPW_INTERNAL_CMD_EVENT, reg);
1400         return strnlen(buf, count);
1401 }
1402
1403 static DEVICE_ATTR(command_event_reg, S_IWUSR | S_IRUGO,
1404                    show_command_event_reg, store_command_event_reg);
1405
1406 static ssize_t show_mem_gpio_reg(struct device *d,
1407                                  struct device_attribute *attr, char *buf)
1408 {
1409         u32 reg = 0;
1410         struct ipw_priv *p = d->driver_data;
1411
1412         reg = ipw_read_reg32(p, 0x301100);
1413         return sprintf(buf, "0x%08x\n", reg);
1414 }
1415 static ssize_t store_mem_gpio_reg(struct device *d,
1416                                   struct device_attribute *attr,
1417                                   const char *buf, size_t count)
1418 {
1419         u32 reg;
1420         struct ipw_priv *p = d->driver_data;
1421
1422         sscanf(buf, "%x", &reg);
1423         ipw_write_reg32(p, 0x301100, reg);
1424         return strnlen(buf, count);
1425 }
1426
1427 static DEVICE_ATTR(mem_gpio_reg, S_IWUSR | S_IRUGO,
1428                    show_mem_gpio_reg, store_mem_gpio_reg);
1429
1430 static ssize_t show_indirect_dword(struct device *d,
1431                                    struct device_attribute *attr, char *buf)
1432 {
1433         u32 reg = 0;
1434         struct ipw_priv *priv = d->driver_data;
1435
1436         if (priv->status & STATUS_INDIRECT_DWORD)
1437                 reg = ipw_read_reg32(priv, priv->indirect_dword);
1438         else
1439                 reg = 0;
1440
1441         return sprintf(buf, "0x%08x\n", reg);
1442 }
1443 static ssize_t store_indirect_dword(struct device *d,
1444                                     struct device_attribute *attr,
1445                                     const char *buf, size_t count)
1446 {
1447         struct ipw_priv *priv = d->driver_data;
1448
1449         sscanf(buf, "%x", &priv->indirect_dword);
1450         priv->status |= STATUS_INDIRECT_DWORD;
1451         return strnlen(buf, count);
1452 }
1453
1454 static DEVICE_ATTR(indirect_dword, S_IWUSR | S_IRUGO,
1455                    show_indirect_dword, store_indirect_dword);
1456
1457 static ssize_t show_indirect_byte(struct device *d,
1458                                   struct device_attribute *attr, char *buf)
1459 {
1460         u8 reg = 0;
1461         struct ipw_priv *priv = d->driver_data;
1462
1463         if (priv->status & STATUS_INDIRECT_BYTE)
1464                 reg = ipw_read_reg8(priv, priv->indirect_byte);
1465         else
1466                 reg = 0;
1467
1468         return sprintf(buf, "0x%02x\n", reg);
1469 }
1470 static ssize_t store_indirect_byte(struct device *d,
1471                                    struct device_attribute *attr,
1472                                    const char *buf, size_t count)
1473 {
1474         struct ipw_priv *priv = d->driver_data;
1475
1476         sscanf(buf, "%x", &priv->indirect_byte);
1477         priv->status |= STATUS_INDIRECT_BYTE;
1478         return strnlen(buf, count);
1479 }
1480
1481 static DEVICE_ATTR(indirect_byte, S_IWUSR | S_IRUGO,
1482                    show_indirect_byte, store_indirect_byte);
1483
1484 static ssize_t show_direct_dword(struct device *d,
1485                                  struct device_attribute *attr, char *buf)
1486 {
1487         u32 reg = 0;
1488         struct ipw_priv *priv = d->driver_data;
1489
1490         if (priv->status & STATUS_DIRECT_DWORD)
1491                 reg = ipw_read32(priv, priv->direct_dword);
1492         else
1493                 reg = 0;
1494
1495         return sprintf(buf, "0x%08x\n", reg);
1496 }
1497 static ssize_t store_direct_dword(struct device *d,
1498                                   struct device_attribute *attr,
1499                                   const char *buf, size_t count)
1500 {
1501         struct ipw_priv *priv = d->driver_data;
1502
1503         sscanf(buf, "%x", &priv->direct_dword);
1504         priv->status |= STATUS_DIRECT_DWORD;
1505         return strnlen(buf, count);
1506 }
1507
1508 static DEVICE_ATTR(direct_dword, S_IWUSR | S_IRUGO,
1509                    show_direct_dword, store_direct_dword);
1510
1511 static inline int rf_kill_active(struct ipw_priv *priv)
1512 {
1513         if (0 == (ipw_read32(priv, 0x30) & 0x10000))
1514                 priv->status |= STATUS_RF_KILL_HW;
1515         else
1516                 priv->status &= ~STATUS_RF_KILL_HW;
1517
1518         return (priv->status & STATUS_RF_KILL_HW) ? 1 : 0;
1519 }
1520
1521 static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
1522                             char *buf)
1523 {
1524         /* 0 - RF kill not enabled
1525            1 - SW based RF kill active (sysfs)
1526            2 - HW based RF kill active
1527            3 - Both HW and SW baed RF kill active */
1528         struct ipw_priv *priv = d->driver_data;
1529         int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
1530             (rf_kill_active(priv) ? 0x2 : 0x0);
1531         return sprintf(buf, "%i\n", val);
1532 }
1533
1534 static int ipw_radio_kill_sw(struct ipw_priv *priv, int disable_radio)
1535 {
1536         if ((disable_radio ? 1 : 0) ==
1537             ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0))
1538                 return 0;
1539
1540         IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO  %s\n",
1541                           disable_radio ? "OFF" : "ON");
1542
1543         if (disable_radio) {
1544                 priv->status |= STATUS_RF_KILL_SW;
1545
1546                 if (priv->workqueue)
1547                         cancel_delayed_work(&priv->request_scan);
1548                 queue_work(priv->workqueue, &priv->down);
1549         } else {
1550                 priv->status &= ~STATUS_RF_KILL_SW;
1551                 if (rf_kill_active(priv)) {
1552                         IPW_DEBUG_RF_KILL("Can not turn radio back on - "
1553                                           "disabled by HW switch\n");
1554                         /* Make sure the RF_KILL check timer is running */
1555                         cancel_delayed_work(&priv->rf_kill);
1556                         queue_delayed_work(priv->workqueue, &priv->rf_kill,
1557                                            2 * HZ);
1558                 } else
1559                         queue_work(priv->workqueue, &priv->up);
1560         }
1561
1562         return 1;
1563 }
1564
1565 static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
1566                              const char *buf, size_t count)
1567 {
1568         struct ipw_priv *priv = d->driver_data;
1569
1570         ipw_radio_kill_sw(priv, buf[0] == '1');
1571
1572         return count;
1573 }
1574
1575 static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
1576
1577 static ssize_t show_speed_scan(struct device *d, struct device_attribute *attr,
1578                                char *buf)
1579 {
1580         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1581         int pos = 0, len = 0;
1582         if (priv->config & CFG_SPEED_SCAN) {
1583                 while (priv->speed_scan[pos] != 0)
1584                         len += sprintf(&buf[len], "%d ",
1585                                        priv->speed_scan[pos++]);
1586                 return len + sprintf(&buf[len], "\n");
1587         }
1588
1589         return sprintf(buf, "0\n");
1590 }
1591
1592 static ssize_t store_speed_scan(struct device *d, struct device_attribute *attr,
1593                                 const char *buf, size_t count)
1594 {
1595         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1596         int channel, pos = 0;
1597         const char *p = buf;
1598
1599         /* list of space separated channels to scan, optionally ending with 0 */
1600         while ((channel = simple_strtol(p, NULL, 0))) {
1601                 if (pos == MAX_SPEED_SCAN - 1) {
1602                         priv->speed_scan[pos] = 0;
1603                         break;
1604                 }
1605
1606                 if (ipw_is_valid_channel(priv->ieee, channel))
1607                         priv->speed_scan[pos++] = channel;
1608                 else
1609                         IPW_WARNING("Skipping invalid channel request: %d\n",
1610                                     channel);
1611                 p = strchr(p, ' ');
1612                 if (!p)
1613                         break;
1614                 while (*p == ' ' || *p == '\t')
1615                         p++;
1616         }
1617
1618         if (pos == 0)
1619                 priv->config &= ~CFG_SPEED_SCAN;
1620         else {
1621                 priv->speed_scan_pos = 0;
1622                 priv->config |= CFG_SPEED_SCAN;
1623         }
1624
1625         return count;
1626 }
1627
1628 static DEVICE_ATTR(speed_scan, S_IWUSR | S_IRUGO, show_speed_scan,
1629                    store_speed_scan);
1630
1631 static ssize_t show_net_stats(struct device *d, struct device_attribute *attr,
1632                               char *buf)
1633 {
1634         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1635         return sprintf(buf, "%c\n", (priv->config & CFG_NET_STATS) ? '1' : '0');
1636 }
1637
1638 static ssize_t store_net_stats(struct device *d, struct device_attribute *attr,
1639                                const char *buf, size_t count)
1640 {
1641         struct ipw_priv *priv = (struct ipw_priv *)d->driver_data;
1642         if (buf[0] == '1')
1643                 priv->config |= CFG_NET_STATS;
1644         else
1645                 priv->config &= ~CFG_NET_STATS;
1646
1647         return count;
1648 }
1649
1650 static DEVICE_ATTR(net_stats, S_IWUSR | S_IRUGO,
1651                    show_net_stats, store_net_stats);
1652
1653 static void notify_wx_assoc_event(struct ipw_priv *priv)
1654 {
1655         union iwreq_data wrqu;
1656         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1657         if (priv->status & STATUS_ASSOCIATED)
1658                 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
1659         else
1660                 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1661         wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1662 }
1663
1664 static void ipw_irq_tasklet(struct ipw_priv *priv)
1665 {
1666         u32 inta, inta_mask, handled = 0;
1667         unsigned long flags;
1668         int rc = 0;
1669
1670         spin_lock_irqsave(&priv->lock, flags);
1671
1672         inta = ipw_read32(priv, IPW_INTA_RW);
1673         inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
1674         inta &= (IPW_INTA_MASK_ALL & inta_mask);
1675
1676         /* Add any cached INTA values that need to be handled */
1677         inta |= priv->isr_inta;
1678
1679         /* handle all the justifications for the interrupt */
1680         if (inta & IPW_INTA_BIT_RX_TRANSFER) {
1681                 ipw_rx(priv);
1682                 handled |= IPW_INTA_BIT_RX_TRANSFER;
1683         }
1684
1685         if (inta & IPW_INTA_BIT_TX_CMD_QUEUE) {
1686                 IPW_DEBUG_HC("Command completed.\n");
1687                 rc = ipw_queue_tx_reclaim(priv, &priv->txq_cmd, -1);
1688                 priv->status &= ~STATUS_HCMD_ACTIVE;
1689                 wake_up_interruptible(&priv->wait_command_queue);
1690                 handled |= IPW_INTA_BIT_TX_CMD_QUEUE;
1691         }
1692
1693         if (inta & IPW_INTA_BIT_TX_QUEUE_1) {
1694                 IPW_DEBUG_TX("TX_QUEUE_1\n");
1695                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[0], 0);
1696                 handled |= IPW_INTA_BIT_TX_QUEUE_1;
1697         }
1698
1699         if (inta & IPW_INTA_BIT_TX_QUEUE_2) {
1700                 IPW_DEBUG_TX("TX_QUEUE_2\n");
1701                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[1], 1);
1702                 handled |= IPW_INTA_BIT_TX_QUEUE_2;
1703         }
1704
1705         if (inta & IPW_INTA_BIT_TX_QUEUE_3) {
1706                 IPW_DEBUG_TX("TX_QUEUE_3\n");
1707                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[2], 2);
1708                 handled |= IPW_INTA_BIT_TX_QUEUE_3;
1709         }
1710
1711         if (inta & IPW_INTA_BIT_TX_QUEUE_4) {
1712                 IPW_DEBUG_TX("TX_QUEUE_4\n");
1713                 rc = ipw_queue_tx_reclaim(priv, &priv->txq[3], 3);
1714                 handled |= IPW_INTA_BIT_TX_QUEUE_4;
1715         }
1716
1717         if (inta & IPW_INTA_BIT_STATUS_CHANGE) {
1718                 IPW_WARNING("STATUS_CHANGE\n");
1719                 handled |= IPW_INTA_BIT_STATUS_CHANGE;
1720         }
1721
1722         if (inta & IPW_INTA_BIT_BEACON_PERIOD_EXPIRED) {
1723                 IPW_WARNING("TX_PERIOD_EXPIRED\n");
1724                 handled |= IPW_INTA_BIT_BEACON_PERIOD_EXPIRED;
1725         }
1726
1727         if (inta & IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE) {
1728                 IPW_WARNING("HOST_CMD_DONE\n");
1729                 handled |= IPW_INTA_BIT_SLAVE_MODE_HOST_CMD_DONE;
1730         }
1731
1732         if (inta & IPW_INTA_BIT_FW_INITIALIZATION_DONE) {
1733                 IPW_WARNING("FW_INITIALIZATION_DONE\n");
1734                 handled |= IPW_INTA_BIT_FW_INITIALIZATION_DONE;
1735         }
1736
1737         if (inta & IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE) {
1738                 IPW_WARNING("PHY_OFF_DONE\n");
1739                 handled |= IPW_INTA_BIT_FW_CARD_DISABLE_PHY_OFF_DONE;
1740         }
1741
1742         if (inta & IPW_INTA_BIT_RF_KILL_DONE) {
1743                 IPW_DEBUG_RF_KILL("RF_KILL_DONE\n");
1744                 priv->status |= STATUS_RF_KILL_HW;
1745                 wake_up_interruptible(&priv->wait_command_queue);
1746                 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1747                 cancel_delayed_work(&priv->request_scan);
1748                 schedule_work(&priv->link_down);
1749                 queue_delayed_work(priv->workqueue, &priv->rf_kill, 2 * HZ);
1750                 handled |= IPW_INTA_BIT_RF_KILL_DONE;
1751         }
1752
1753         if (inta & IPW_INTA_BIT_FATAL_ERROR) {
1754                 IPW_ERROR("Firmware error detected.  Restarting.\n");
1755                 if (priv->error) {
1756                         IPW_ERROR("Sysfs 'error' log already exists.\n");
1757 #ifdef CONFIG_IPW2200_DEBUG
1758                         if (ipw_debug_level & IPW_DL_FW_ERRORS) {
1759                                 struct ipw_fw_error *error =
1760                                     ipw_alloc_error_log(priv);
1761                                 ipw_dump_error_log(priv, error);
1762                                 if (error)
1763                                         ipw_free_error_log(error);
1764                         }
1765 #endif
1766                 } else {
1767                         priv->error = ipw_alloc_error_log(priv);
1768                         if (priv->error)
1769                                 IPW_ERROR("Sysfs 'error' log captured.\n");
1770                         else
1771                                 IPW_ERROR("Error allocating sysfs 'error' "
1772                                           "log.\n");
1773 #ifdef CONFIG_IPW2200_DEBUG
1774                         if (ipw_debug_level & IPW_DL_FW_ERRORS)
1775                                 ipw_dump_error_log(priv, priv->error);
1776 #endif
1777                 }
1778
1779                 /* XXX: If hardware encryption is for WPA/WPA2,
1780                  * we have to notify the supplicant. */
1781                 if (priv->ieee->sec.encrypt) {
1782                         priv->status &= ~STATUS_ASSOCIATED;
1783                         notify_wx_assoc_event(priv);
1784                 }
1785
1786                 /* Keep the restart process from trying to send host
1787                  * commands by clearing the INIT status bit */
1788                 priv->status &= ~STATUS_INIT;
1789
1790                 /* Cancel currently queued command. */
1791                 priv->status &= ~STATUS_HCMD_ACTIVE;
1792                 wake_up_interruptible(&priv->wait_command_queue);
1793
1794                 queue_work(priv->workqueue, &priv->adapter_restart);
1795                 handled |= IPW_INTA_BIT_FATAL_ERROR;
1796         }
1797
1798         if (inta & IPW_INTA_BIT_PARITY_ERROR) {
1799                 IPW_ERROR("Parity error\n");
1800                 handled |= IPW_INTA_BIT_PARITY_ERROR;
1801         }
1802
1803         if (handled != inta) {
1804                 IPW_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
1805         }
1806
1807         /* enable all interrupts */
1808         ipw_enable_interrupts(priv);
1809
1810         spin_unlock_irqrestore(&priv->lock, flags);
1811 }
1812
1813 #define IPW_CMD(x) case IPW_CMD_ ## x : return #x
1814 static char *get_cmd_string(u8 cmd)
1815 {
1816         switch (cmd) {
1817                 IPW_CMD(HOST_COMPLETE);
1818                 IPW_CMD(POWER_DOWN);
1819                 IPW_CMD(SYSTEM_CONFIG);
1820                 IPW_CMD(MULTICAST_ADDRESS);
1821                 IPW_CMD(SSID);
1822                 IPW_CMD(ADAPTER_ADDRESS);
1823                 IPW_CMD(PORT_TYPE);
1824                 IPW_CMD(RTS_THRESHOLD);
1825                 IPW_CMD(FRAG_THRESHOLD);
1826                 IPW_CMD(POWER_MODE);
1827                 IPW_CMD(WEP_KEY);
1828                 IPW_CMD(TGI_TX_KEY);
1829                 IPW_CMD(SCAN_REQUEST);
1830                 IPW_CMD(SCAN_REQUEST_EXT);
1831                 IPW_CMD(ASSOCIATE);
1832                 IPW_CMD(SUPPORTED_RATES);
1833                 IPW_CMD(SCAN_ABORT);
1834                 IPW_CMD(TX_FLUSH);
1835                 IPW_CMD(QOS_PARAMETERS);
1836                 IPW_CMD(DINO_CONFIG);
1837                 IPW_CMD(RSN_CAPABILITIES);
1838                 IPW_CMD(RX_KEY);
1839                 IPW_CMD(CARD_DISABLE);
1840                 IPW_CMD(SEED_NUMBER);
1841                 IPW_CMD(TX_POWER);
1842                 IPW_CMD(COUNTRY_INFO);
1843                 IPW_CMD(AIRONET_INFO);
1844                 IPW_CMD(AP_TX_POWER);
1845                 IPW_CMD(CCKM_INFO);
1846                 IPW_CMD(CCX_VER_INFO);
1847                 IPW_CMD(SET_CALIBRATION);
1848                 IPW_CMD(SENSITIVITY_CALIB);
1849                 IPW_CMD(RETRY_LIMIT);
1850                 IPW_CMD(IPW_PRE_POWER_DOWN);
1851                 IPW_CMD(VAP_BEACON_TEMPLATE);
1852                 IPW_CMD(VAP_DTIM_PERIOD);
1853                 IPW_CMD(EXT_SUPPORTED_RATES);
1854                 IPW_CMD(VAP_LOCAL_TX_PWR_CONSTRAINT);
1855                 IPW_CMD(VAP_QUIET_INTERVALS);
1856                 IPW_CMD(VAP_CHANNEL_SWITCH);
1857                 IPW_CMD(VAP_MANDATORY_CHANNELS);
1858                 IPW_CMD(VAP_CELL_PWR_LIMIT);
1859                 IPW_CMD(VAP_CF_PARAM_SET);
1860                 IPW_CMD(VAP_SET_BEACONING_STATE);
1861                 IPW_CMD(MEASUREMENT);
1862                 IPW_CMD(POWER_CAPABILITY);
1863                 IPW_CMD(SUPPORTED_CHANNELS);
1864                 IPW_CMD(TPC_REPORT);
1865                 IPW_CMD(WME_INFO);
1866                 IPW_CMD(PRODUCTION_COMMAND);
1867         default:
1868                 return "UNKNOWN";
1869         }
1870 }
1871
1872 #define HOST_COMPLETE_TIMEOUT HZ
1873 static int ipw_send_cmd(struct ipw_priv *priv, struct host_cmd *cmd)
1874 {
1875         int rc = 0;
1876         unsigned long flags;
1877
1878         spin_lock_irqsave(&priv->lock, flags);
1879         if (priv->status & STATUS_HCMD_ACTIVE) {
1880                 IPW_ERROR("Failed to send %s: Already sending a command.\n",
1881                           get_cmd_string(cmd->cmd));
1882                 spin_unlock_irqrestore(&priv->lock, flags);
1883                 return -EAGAIN;
1884         }
1885
1886         priv->status |= STATUS_HCMD_ACTIVE;
1887
1888         if (priv->cmdlog) {
1889                 priv->cmdlog[priv->cmdlog_pos].jiffies = jiffies;
1890                 priv->cmdlog[priv->cmdlog_pos].cmd.cmd = cmd->cmd;
1891                 priv->cmdlog[priv->cmdlog_pos].cmd.len = cmd->len;
1892                 memcpy(priv->cmdlog[priv->cmdlog_pos].cmd.param, cmd->param,
1893                        cmd->len);
1894                 priv->cmdlog[priv->cmdlog_pos].retcode = -1;
1895         }
1896
1897         IPW_DEBUG_HC("%s command (#%d) %d bytes: 0x%08X\n",
1898                      get_cmd_string(cmd->cmd), cmd->cmd, cmd->len,
1899                      priv->status);
1900         printk_buf(IPW_DL_HOST_COMMAND, (u8 *) cmd->param, cmd->len);
1901
1902         rc = ipw_queue_tx_hcmd(priv, cmd->cmd, &cmd->param, cmd->len, 0);
1903         if (rc) {
1904                 priv->status &= ~STATUS_HCMD_ACTIVE;
1905                 IPW_ERROR("Failed to send %s: Reason %d\n",
1906                           get_cmd_string(cmd->cmd), rc);
1907                 spin_unlock_irqrestore(&priv->lock, flags);
1908                 goto exit;
1909         }
1910         spin_unlock_irqrestore(&priv->lock, flags);
1911
1912         rc = wait_event_interruptible_timeout(priv->wait_command_queue,
1913                                               !(priv->
1914                                                 status & STATUS_HCMD_ACTIVE),
1915                                               HOST_COMPLETE_TIMEOUT);
1916         if (rc == 0) {
1917                 spin_lock_irqsave(&priv->lock, flags);
1918                 if (priv->status & STATUS_HCMD_ACTIVE) {
1919                         IPW_ERROR("Failed to send %s: Command timed out.\n",
1920                                   get_cmd_string(cmd->cmd));
1921                         priv->status &= ~STATUS_HCMD_ACTIVE;
1922                         spin_unlock_irqrestore(&priv->lock, flags);
1923                         rc = -EIO;
1924                         goto exit;
1925                 }
1926                 spin_unlock_irqrestore(&priv->lock, flags);
1927         } else
1928                 rc = 0;
1929
1930         if (priv->status & STATUS_RF_KILL_HW) {
1931                 IPW_ERROR("Failed to send %s: Aborted due to RF kill switch.\n",
1932                           get_cmd_string(cmd->cmd));
1933                 rc = -EIO;
1934                 goto exit;
1935         }
1936
1937       exit:
1938         if (priv->cmdlog) {
1939                 priv->cmdlog[priv->cmdlog_pos++].retcode = rc;
1940                 priv->cmdlog_pos %= priv->cmdlog_len;
1941         }
1942         return rc;
1943 }
1944
1945 static int ipw_send_host_complete(struct ipw_priv *priv)
1946 {
1947         struct host_cmd cmd = {
1948                 .cmd = IPW_CMD_HOST_COMPLETE,
1949                 .len = 0
1950         };
1951
1952         if (!priv) {
1953                 IPW_ERROR("Invalid args\n");
1954                 return -1;
1955         }
1956
1957         return ipw_send_cmd(priv, &cmd);
1958 }
1959
1960 static int ipw_send_system_config(struct ipw_priv *priv,
1961                                   struct ipw_sys_config *config)
1962 {
1963         struct host_cmd cmd = {
1964                 .cmd = IPW_CMD_SYSTEM_CONFIG,
1965                 .len = sizeof(*config)
1966         };
1967
1968         if (!priv || !config) {
1969                 IPW_ERROR("Invalid args\n");
1970                 return -1;
1971         }
1972
1973         memcpy(cmd.param, config, sizeof(*config));
1974         return ipw_send_cmd(priv, &cmd);
1975 }
1976
1977 static int ipw_send_ssid(struct ipw_priv *priv, u8 * ssid, int len)
1978 {
1979         struct host_cmd cmd = {
1980                 .cmd = IPW_CMD_SSID,
1981                 .len = min(len, IW_ESSID_MAX_SIZE)
1982         };
1983
1984         if (!priv || !ssid) {
1985                 IPW_ERROR("Invalid args\n");
1986                 return -1;
1987         }
1988
1989         memcpy(cmd.param, ssid, cmd.len);
1990         return ipw_send_cmd(priv, &cmd);
1991 }
1992
1993 static int ipw_send_adapter_address(struct ipw_priv *priv, u8 * mac)
1994 {
1995         struct host_cmd cmd = {
1996                 .cmd = IPW_CMD_ADAPTER_ADDRESS,
1997                 .len = ETH_ALEN
1998         };
1999
2000         if (!priv || !mac) {
2001                 IPW_ERROR("Invalid args\n");
2002                 return -1;
2003         }
2004
2005         IPW_DEBUG_INFO("%s: Setting MAC to " MAC_FMT "\n",
2006                        priv->net_dev->name, MAC_ARG(mac));
2007
2008         memcpy(cmd.param, mac, ETH_ALEN);
2009         return ipw_send_cmd(priv, &cmd);
2010 }
2011
2012 /*
2013  * NOTE: This must be executed from our workqueue as it results in udelay
2014  * being called which may corrupt the keyboard if executed on default
2015  * workqueue
2016  */
2017 static void ipw_adapter_restart(void *adapter)
2018 {
2019         struct ipw_priv *priv = adapter;
2020
2021         if (priv->status & STATUS_RF_KILL_MASK)
2022                 return;
2023
2024         ipw_down(priv);
2025
2026         if (priv->assoc_network &&
2027             (priv->assoc_network->capability & WLAN_CAPABILITY_IBSS))
2028                 ipw_remove_current_network(priv);
2029
2030         if (ipw_up(priv)) {
2031                 IPW_ERROR("Failed to up device\n");
2032                 return;
2033         }
2034 }
2035
2036 static void ipw_bg_adapter_restart(void *data)
2037 {
2038         struct ipw_priv *priv = data;
2039         down(&priv->sem);
2040         ipw_adapter_restart(data);
2041         up(&priv->sem);
2042 }
2043
2044 #define IPW_SCAN_CHECK_WATCHDOG (5 * HZ)
2045
2046 static void ipw_scan_check(void *data)
2047 {
2048         struct ipw_priv *priv = data;
2049         if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
2050                 IPW_DEBUG_SCAN("Scan completion watchdog resetting "
2051                                "adapter (%dms).\n",
2052                                IPW_SCAN_CHECK_WATCHDOG / 100);
2053                 queue_work(priv->workqueue, &priv->adapter_restart);
2054         }
2055 }
2056
2057 static void ipw_bg_scan_check(void *data)
2058 {
2059         struct ipw_priv *priv = data;
2060         down(&priv->sem);
2061         ipw_scan_check(data);
2062         up(&priv->sem);
2063 }
2064
2065 static int ipw_send_scan_request_ext(struct ipw_priv *priv,
2066                                      struct ipw_scan_request_ext *request)
2067 {
2068         struct host_cmd cmd = {
2069                 .cmd = IPW_CMD_SCAN_REQUEST_EXT,
2070                 .len = sizeof(*request)
2071         };
2072
2073         memcpy(cmd.param, request, sizeof(*request));
2074         return ipw_send_cmd(priv, &cmd);
2075 }
2076
2077 static int ipw_send_scan_abort(struct ipw_priv *priv)
2078 {
2079         struct host_cmd cmd = {
2080                 .cmd = IPW_CMD_SCAN_ABORT,
2081                 .len = 0
2082         };
2083
2084         if (!priv) {
2085                 IPW_ERROR("Invalid args\n");
2086                 return -1;
2087         }
2088
2089         return ipw_send_cmd(priv, &cmd);
2090 }
2091
2092 static int ipw_set_sensitivity(struct ipw_priv *priv, u16 sens)
2093 {
2094         struct host_cmd cmd = {
2095                 .cmd = IPW_CMD_SENSITIVITY_CALIB,
2096                 .len = sizeof(struct ipw_sensitivity_calib)
2097         };
2098         struct ipw_sensitivity_calib *calib = (struct ipw_sensitivity_calib *)
2099             &cmd.param;
2100         calib->beacon_rssi_raw = sens;
2101         return ipw_send_cmd(priv, &cmd);
2102 }
2103
2104 static int ipw_send_associate(struct ipw_priv *priv,
2105                               struct ipw_associate *associate)
2106 {
2107         struct host_cmd cmd = {
2108                 .cmd = IPW_CMD_ASSOCIATE,
2109                 .len = sizeof(*associate)
2110         };
2111
2112         struct ipw_associate tmp_associate;
2113         memcpy(&tmp_associate, associate, sizeof(*associate));
2114         tmp_associate.policy_support =
2115             cpu_to_le16(tmp_associate.policy_support);
2116         tmp_associate.assoc_tsf_msw = cpu_to_le32(tmp_associate.assoc_tsf_msw);
2117         tmp_associate.assoc_tsf_lsw = cpu_to_le32(tmp_associate.assoc_tsf_lsw);
2118         tmp_associate.capability = cpu_to_le16(tmp_associate.capability);
2119         tmp_associate.listen_interval =
2120             cpu_to_le16(tmp_associate.listen_interval);
2121         tmp_associate.beacon_interval =
2122             cpu_to_le16(tmp_associate.beacon_interval);
2123         tmp_associate.atim_window = cpu_to_le16(tmp_associate.atim_window);
2124
2125         if (!priv || !associate) {
2126                 IPW_ERROR("Invalid args\n");
2127                 return -1;
2128         }
2129
2130         memcpy(cmd.param, &tmp_associate, sizeof(*associate));
2131         return ipw_send_cmd(priv, &cmd);
2132 }
2133
2134 static int ipw_send_supported_rates(struct ipw_priv *priv,
2135                                     struct ipw_supported_rates *rates)
2136 {
2137         struct host_cmd cmd = {
2138                 .cmd = IPW_CMD_SUPPORTED_RATES,
2139                 .len = sizeof(*rates)
2140         };
2141
2142         if (!priv || !rates) {
2143                 IPW_ERROR("Invalid args\n");
2144                 return -1;
2145         }
2146
2147         memcpy(cmd.param, rates, sizeof(*rates));
2148         return ipw_send_cmd(priv, &cmd);
2149 }
2150
2151 static int ipw_set_random_seed(struct ipw_priv *priv)
2152 {
2153         struct host_cmd cmd = {
2154                 .cmd = IPW_CMD_SEED_NUMBER,
2155                 .len = sizeof(u32)
2156         };
2157
2158         if (!priv) {
2159                 IPW_ERROR("Invalid args\n");
2160                 return -1;
2161         }
2162
2163         get_random_bytes(&cmd.param, sizeof(u32));
2164
2165         return ipw_send_cmd(priv, &cmd);
2166 }
2167
2168 static int ipw_send_card_disable(struct ipw_priv *priv, u32 phy_off)
2169 {
2170         struct host_cmd cmd = {
2171                 .cmd = IPW_CMD_CARD_DISABLE,
2172                 .len = sizeof(u32)
2173         };
2174
2175         if (!priv) {
2176                 IPW_ERROR("Invalid args\n");
2177                 return -1;
2178         }
2179
2180         *((u32 *) & cmd.param) = phy_off;
2181
2182         return ipw_send_cmd(priv, &cmd);
2183 }
2184
2185 static int ipw_send_tx_power(struct ipw_priv *priv, struct ipw_tx_power *power)
2186 {
2187         struct host_cmd cmd = {
2188                 .cmd = IPW_CMD_TX_POWER,
2189                 .len = sizeof(*power)
2190         };
2191
2192         if (!priv || !power) {
2193                 IPW_ERROR("Invalid args\n");
2194                 return -1;
2195         }
2196
2197         memcpy(cmd.param, power, sizeof(*power));
2198         return ipw_send_cmd(priv, &cmd);
2199 }
2200
2201 static int ipw_set_tx_power(struct ipw_priv *priv)
2202 {
2203         const struct ieee80211_geo *geo = ipw_get_geo(priv->ieee);
2204         struct ipw_tx_power tx_power;
2205         s8 max_power;
2206         int i;
2207
2208         memset(&tx_power, 0, sizeof(tx_power));
2209
2210         /* configure device for 'G' band */
2211         tx_power.ieee_mode = IPW_G_MODE;
2212         tx_power.num_channels = geo->bg_channels;
2213         for (i = 0; i < geo->bg_channels; i++) {
2214                 max_power = geo->bg[i].max_power;
2215                 tx_power.channels_tx_power[i].channel_number =
2216                     geo->bg[i].channel;
2217                 tx_power.channels_tx_power[i].tx_power = max_power ?
2218                     min(max_power, priv->tx_power) : priv->tx_power;
2219         }
2220         if (ipw_send_tx_power(priv, &tx_power))
2221                 return -EIO;
2222
2223         /* configure device to also handle 'B' band */
2224         tx_power.ieee_mode = IPW_B_MODE;
2225         if (ipw_send_tx_power(priv, &tx_power))
2226                 return -EIO;
2227
2228         /* configure device to also handle 'A' band */
2229         if (priv->ieee->abg_true) {
2230                 tx_power.ieee_mode = IPW_A_MODE;
2231                 tx_power.num_channels = geo->a_channels;
2232                 for (i = 0; i < tx_power.num_channels; i++) {
2233                         max_power = geo->a[i].max_power;
2234                         tx_power.channels_tx_power[i].channel_number =
2235                             geo->a[i].channel;
2236                         tx_power.channels_tx_power[i].tx_power = max_power ?
2237                             min(max_power, priv->tx_power) : priv->tx_power;
2238                 }
2239                 if (ipw_send_tx_power(priv, &tx_power))
2240                         return -EIO;
2241         }
2242         return 0;
2243 }
2244
2245 static int ipw_send_rts_threshold(struct ipw_priv *priv, u16 rts)
2246 {
2247         struct ipw_rts_threshold rts_threshold = {
2248                 .rts_threshold = rts,
2249         };
2250         struct host_cmd cmd = {
2251                 .cmd = IPW_CMD_RTS_THRESHOLD,
2252                 .len = sizeof(rts_threshold)
2253         };
2254
2255         if (!priv) {
2256                 IPW_ERROR("Invalid args\n");
2257                 return -1;
2258         }
2259
2260         memcpy(cmd.param, &rts_threshold, sizeof(rts_threshold));
2261         return ipw_send_cmd(priv, &cmd);
2262 }
2263
2264 static int ipw_send_frag_threshold(struct ipw_priv *priv, u16 frag)
2265 {
2266         struct ipw_frag_threshold frag_threshold = {
2267                 .frag_threshold = frag,
2268         };
2269         struct host_cmd cmd = {
2270                 .cmd = IPW_CMD_FRAG_THRESHOLD,
2271                 .len = sizeof(frag_threshold)
2272         };
2273
2274         if (!priv) {
2275                 IPW_ERROR("Invalid args\n");
2276                 return -1;
2277         }
2278
2279         memcpy(cmd.param, &frag_threshold, sizeof(frag_threshold));
2280         return ipw_send_cmd(priv, &cmd);
2281 }
2282
2283 static int ipw_send_power_mode(struct ipw_priv *priv, u32 mode)
2284 {
2285         struct host_cmd cmd = {
2286                 .cmd = IPW_CMD_POWER_MODE,
2287                 .len = sizeof(u32)
2288         };
2289         u32 *param = (u32 *) (&cmd.param);
2290
2291         if (!priv) {
2292                 IPW_ERROR("Invalid args\n");
2293                 return -1;
2294         }
2295
2296         /* If on battery, set to 3, if AC set to CAM, else user
2297          * level */
2298         switch (mode) {
2299         case IPW_POWER_BATTERY:
2300                 *param = IPW_POWER_INDEX_3;
2301                 break;
2302         case IPW_POWER_AC:
2303                 *param = IPW_POWER_MODE_CAM;
2304                 break;
2305         default:
2306                 *param = mode;
2307                 break;
2308         }
2309
2310         return ipw_send_cmd(priv, &cmd);
2311 }
2312
2313 static int ipw_send_retry_limit(struct ipw_priv *priv, u8 slimit, u8 llimit)
2314 {
2315         struct ipw_retry_limit retry_limit = {
2316                 .short_retry_limit = slimit,
2317                 .long_retry_limit = llimit
2318         };
2319         struct host_cmd cmd = {
2320                 .cmd = IPW_CMD_RETRY_LIMIT,
2321                 .len = sizeof(retry_limit)
2322         };
2323
2324         if (!priv) {
2325                 IPW_ERROR("Invalid args\n");
2326                 return -1;
2327         }
2328
2329         memcpy(cmd.param, &retry_limit, sizeof(retry_limit));
2330         return ipw_send_cmd(priv, &cmd);
2331 }
2332
2333 /*
2334  * The IPW device contains a Microwire compatible EEPROM that stores
2335  * various data like the MAC address.  Usually the firmware has exclusive
2336  * access to the eeprom, but during device initialization (before the
2337  * device driver has sent the HostComplete command to the firmware) the
2338  * device driver has read access to the EEPROM by way of indirect addressing
2339  * through a couple of memory mapped registers.
2340  *
2341  * The following is a simplified implementation for pulling data out of the
2342  * the eeprom, along with some helper functions to find information in
2343  * the per device private data's copy of the eeprom.
2344  *
2345  * NOTE: To better understand how these functions work (i.e what is a chip
2346  *       select and why do have to keep driving the eeprom clock?), read
2347  *       just about any data sheet for a Microwire compatible EEPROM.
2348  */
2349
2350 /* write a 32 bit value into the indirect accessor register */
2351 static inline void eeprom_write_reg(struct ipw_priv *p, u32 data)
2352 {
2353         ipw_write_reg32(p, FW_MEM_REG_EEPROM_ACCESS, data);
2354
2355         /* the eeprom requires some time to complete the operation */
2356         udelay(p->eeprom_delay);
2357
2358         return;
2359 }
2360
2361 /* perform a chip select operation */
2362 static inline void eeprom_cs(struct ipw_priv *priv)
2363 {
2364         eeprom_write_reg(priv, 0);
2365         eeprom_write_reg(priv, EEPROM_BIT_CS);
2366         eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2367         eeprom_write_reg(priv, EEPROM_BIT_CS);
2368 }
2369
2370 /* perform a chip select operation */
2371 static inline void eeprom_disable_cs(struct ipw_priv *priv)
2372 {
2373         eeprom_write_reg(priv, EEPROM_BIT_CS);
2374         eeprom_write_reg(priv, 0);
2375         eeprom_write_reg(priv, EEPROM_BIT_SK);
2376 }
2377
2378 /* push a single bit down to the eeprom */
2379 static inline void eeprom_write_bit(struct ipw_priv *p, u8 bit)
2380 {
2381         int d = (bit ? EEPROM_BIT_DI : 0);
2382         eeprom_write_reg(p, EEPROM_BIT_CS | d);
2383         eeprom_write_reg(p, EEPROM_BIT_CS | d | EEPROM_BIT_SK);
2384 }
2385
2386 /* push an opcode followed by an address down to the eeprom */
2387 static void eeprom_op(struct ipw_priv *priv, u8 op, u8 addr)
2388 {
2389         int i;
2390
2391         eeprom_cs(priv);
2392         eeprom_write_bit(priv, 1);
2393         eeprom_write_bit(priv, op & 2);
2394         eeprom_write_bit(priv, op & 1);
2395         for (i = 7; i >= 0; i--) {
2396                 eeprom_write_bit(priv, addr & (1 << i));
2397         }
2398 }
2399
2400 /* pull 16 bits off the eeprom, one bit at a time */
2401 static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr)
2402 {
2403         int i;
2404         u16 r = 0;
2405
2406         /* Send READ Opcode */
2407         eeprom_op(priv, EEPROM_CMD_READ, addr);
2408
2409         /* Send dummy bit */
2410         eeprom_write_reg(priv, EEPROM_BIT_CS);
2411
2412         /* Read the byte off the eeprom one bit at a time */
2413         for (i = 0; i < 16; i++) {
2414                 u32 data = 0;
2415                 eeprom_write_reg(priv, EEPROM_BIT_CS | EEPROM_BIT_SK);
2416                 eeprom_write_reg(priv, EEPROM_BIT_CS);
2417                 data = ipw_read_reg32(priv, FW_MEM_REG_EEPROM_ACCESS);
2418                 r = (r << 1) | ((data & EEPROM_BIT_DO) ? 1 : 0);
2419         }
2420
2421         /* Send another dummy bit */
2422         eeprom_write_reg(priv, 0);
2423         eeprom_disable_cs(priv);
2424
2425         return r;
2426 }
2427
2428 /* helper function for pulling the mac address out of the private */
2429 /* data's copy of the eeprom data                                 */
2430 static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
2431 {
2432         memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], 6);
2433 }
2434
2435 /*
2436  * Either the device driver (i.e. the host) or the firmware can
2437  * load eeprom data into the designated region in SRAM.  If neither
2438  * happens then the FW will shutdown with a fatal error.
2439  *
2440  * In order to signal the FW to load the EEPROM, the EEPROM_LOAD_DISABLE
2441  * bit needs region of shared SRAM needs to be non-zero.
2442  */
2443 static void ipw_eeprom_init_sram(struct ipw_priv *priv)
2444 {
2445         int i;
2446         u16 *eeprom = (u16 *) priv->eeprom;
2447
2448         IPW_DEBUG_TRACE(">>\n");
2449
2450         /* read entire contents of eeprom into private buffer */
2451         for (i = 0; i < 128; i++)
2452                 eeprom[i] = le16_to_cpu(eeprom_read_u16(priv, (u8) i));
2453
2454         /*
2455            If the data looks correct, then copy it to our private
2456            copy.  Otherwise let the firmware know to perform the operation
2457            on it's own
2458          */
2459         if ((priv->eeprom + EEPROM_VERSION) != 0) {
2460                 IPW_DEBUG_INFO("Writing EEPROM data into SRAM\n");
2461
2462                 /* write the eeprom data to sram */
2463                 for (i = 0; i < IPW_EEPROM_IMAGE_SIZE; i++)
2464                         ipw_write8(priv, IPW_EEPROM_DATA + i, priv->eeprom[i]);
2465
2466                 /* Do not load eeprom data on fatal error or suspend */
2467                 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
2468         } else {
2469                 IPW_DEBUG_INFO("Enabling FW initializationg of SRAM\n");
2470
2471                 /* Load eeprom data on fatal error or suspend */
2472                 ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 1);
2473         }
2474
2475         IPW_DEBUG_TRACE("<<\n");
2476 }
2477
2478 static inline void ipw_zero_memory(struct ipw_priv *priv, u32 start, u32 count)
2479 {
2480         count >>= 2;
2481         if (!count)
2482                 return;
2483         _ipw_write32(priv, IPW_AUTOINC_ADDR, start);
2484         while (count--)
2485                 _ipw_write32(priv, IPW_AUTOINC_DATA, 0);
2486 }
2487
2488 static inline void ipw_fw_dma_reset_command_blocks(struct ipw_priv *priv)
2489 {
2490         ipw_zero_memory(priv, IPW_SHARED_SRAM_DMA_CONTROL,
2491                         CB_NUMBER_OF_ELEMENTS_SMALL *
2492                         sizeof(struct command_block));
2493 }
2494
2495 static int ipw_fw_dma_enable(struct ipw_priv *priv)
2496 {                               /* start dma engine but no transfers yet */
2497
2498         IPW_DEBUG_FW(">> : \n");
2499
2500         /* Start the dma */
2501         ipw_fw_dma_reset_command_blocks(priv);
2502
2503         /* Write CB base address */
2504         ipw_write_reg32(priv, IPW_DMA_I_CB_BASE, IPW_SHARED_SRAM_DMA_CONTROL);
2505
2506         IPW_DEBUG_FW("<< : \n");
2507         return 0;
2508 }
2509
2510 static void ipw_fw_dma_abort(struct ipw_priv *priv)
2511 {
2512         u32 control = 0;
2513
2514         IPW_DEBUG_FW(">> :\n");
2515
2516         //set the Stop and Abort bit
2517         control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_STOP_AND_ABORT;
2518         ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2519         priv->sram_desc.last_cb_index = 0;
2520
2521         IPW_DEBUG_FW("<< \n");
2522 }
2523
2524 static int ipw_fw_dma_write_command_block(struct ipw_priv *priv, int index,
2525                                           struct command_block *cb)
2526 {
2527         u32 address =
2528             IPW_SHARED_SRAM_DMA_CONTROL +
2529             (sizeof(struct command_block) * index);
2530         IPW_DEBUG_FW(">> :\n");
2531
2532         ipw_write_indirect(priv, address, (u8 *) cb,
2533                            (int)sizeof(struct command_block));
2534
2535         IPW_DEBUG_FW("<< :\n");
2536         return 0;
2537
2538 }
2539
2540 static int ipw_fw_dma_kick(struct ipw_priv *priv)
2541 {
2542         u32 control = 0;
2543         u32 index = 0;
2544
2545         IPW_DEBUG_FW(">> :\n");
2546
2547         for (index = 0; index < priv->sram_desc.last_cb_index; index++)
2548                 ipw_fw_dma_write_command_block(priv, index,
2549                                                &priv->sram_desc.cb_list[index]);
2550
2551         /* Enable the DMA in the CSR register */
2552         ipw_clear_bit(priv, IPW_RESET_REG,
2553                       IPW_RESET_REG_MASTER_DISABLED |
2554                       IPW_RESET_REG_STOP_MASTER);
2555
2556         /* Set the Start bit. */
2557         control = DMA_CONTROL_SMALL_CB_CONST_VALUE | DMA_CB_START;
2558         ipw_write_reg32(priv, IPW_DMA_I_DMA_CONTROL, control);
2559
2560         IPW_DEBUG_FW("<< :\n");
2561         return 0;
2562 }
2563
2564 static void ipw_fw_dma_dump_command_block(struct ipw_priv *priv)
2565 {
2566         u32 address;
2567         u32 register_value = 0;
2568         u32 cb_fields_address = 0;
2569
2570         IPW_DEBUG_FW(">> :\n");
2571         address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2572         IPW_DEBUG_FW_INFO("Current CB is 0x%x \n", address);
2573
2574         /* Read the DMA Controlor register */
2575         register_value = ipw_read_reg32(priv, IPW_DMA_I_DMA_CONTROL);
2576         IPW_DEBUG_FW_INFO("IPW_DMA_I_DMA_CONTROL is 0x%x \n", register_value);
2577
2578         /* Print the CB values */
2579         cb_fields_address = address;
2580         register_value = ipw_read_reg32(priv, cb_fields_address);
2581         IPW_DEBUG_FW_INFO("Current CB ControlField is 0x%x \n", register_value);
2582
2583         cb_fields_address += sizeof(u32);
2584         register_value = ipw_read_reg32(priv, cb_fields_address);
2585         IPW_DEBUG_FW_INFO("Current CB Source Field is 0x%x \n", register_value);
2586
2587         cb_fields_address += sizeof(u32);
2588         register_value = ipw_read_reg32(priv, cb_fields_address);
2589         IPW_DEBUG_FW_INFO("Current CB Destination Field is 0x%x \n",
2590                           register_value);
2591
2592         cb_fields_address += sizeof(u32);
2593         register_value = ipw_read_reg32(priv, cb_fields_address);
2594         IPW_DEBUG_FW_INFO("Current CB Status Field is 0x%x \n", register_value);
2595
2596         IPW_DEBUG_FW(">> :\n");
2597 }
2598
2599 static int ipw_fw_dma_command_block_index(struct ipw_priv *priv)
2600 {
2601         u32 current_cb_address = 0;
2602         u32 current_cb_index = 0;
2603
2604         IPW_DEBUG_FW("<< :\n");
2605         current_cb_address = ipw_read_reg32(priv, IPW_DMA_I_CURRENT_CB);
2606
2607         current_cb_index = (current_cb_address - IPW_SHARED_SRAM_DMA_CONTROL) /
2608             sizeof(struct command_block);
2609
2610         IPW_DEBUG_FW_INFO("Current CB index 0x%x address = 0x%X \n",
2611                           current_cb_index, current_cb_address);
2612
2613         IPW_DEBUG_FW(">> :\n");
2614         return current_cb_index;
2615
2616 }
2617
2618 static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
2619                                         u32 src_address,
2620                                         u32 dest_address,
2621                                         u32 length,
2622                                         int interrupt_enabled, int is_last)
2623 {
2624
2625         u32 control = CB_VALID | CB_SRC_LE | CB_DEST_LE | CB_SRC_AUTOINC |
2626             CB_SRC_IO_GATED | CB_DEST_AUTOINC | CB_SRC_SIZE_LONG |
2627             CB_DEST_SIZE_LONG;
2628         struct command_block *cb;
2629         u32 last_cb_element = 0;
2630
2631         IPW_DEBUG_FW_INFO("src_address=0x%x dest_address=0x%x length=0x%x\n",
2632                           src_address, dest_address, length);
2633
2634         if (priv->sram_desc.last_cb_index >= CB_NUMBER_OF_ELEMENTS_SMALL)
2635                 return -1;
2636
2637         last_cb_element = priv->sram_desc.last_cb_index;
2638         cb = &priv->sram_desc.cb_list[last_cb_element];
2639         priv->sram_desc.last_cb_index++;
2640
2641         /* Calculate the new CB control word */
2642         if (interrupt_enabled)
2643                 control |= CB_INT_ENABLED;
2644
2645         if (is_last)
2646                 control |= CB_LAST_VALID;
2647
2648         control |= length;
2649
2650         /* Calculate the CB Element's checksum value */
2651         cb->status = control ^ src_address ^ dest_address;
2652
2653         /* Copy the Source and Destination addresses */
2654         cb->dest_addr = dest_address;
2655         cb->source_addr = src_address;
2656
2657         /* Copy the Control Word last */
2658         cb->control = control;
2659
2660         return 0;
2661 }
2662
2663 static int ipw_fw_dma_add_buffer(struct ipw_priv *priv,
2664                                  u32 src_phys, u32 dest_address, u32 length)
2665 {
2666         u32 bytes_left = length;
2667         u32 src_offset = 0;
2668         u32 dest_offset = 0;
2669         int status = 0;
2670         IPW_DEBUG_FW(">> \n");
2671         IPW_DEBUG_FW_INFO("src_phys=0x%x dest_address=0x%x length=0x%x\n",
2672                           src_phys, dest_address, length);
2673         while (bytes_left > CB_MAX_LENGTH) {
2674                 status = ipw_fw_dma_add_command_block(priv,
2675                                                       src_phys + src_offset,
2676                                                       dest_address +
2677                                                       dest_offset,
2678                                                       CB_MAX_LENGTH, 0, 0);
2679                 if (status) {
2680                         IPW_DEBUG_FW_INFO(": Failed\n");
2681                         return -1;
2682                 } else
2683                         IPW_DEBUG_FW_INFO(": Added new cb\n");
2684
2685                 src_offset += CB_MAX_LENGTH;
2686                 dest_offset += CB_MAX_LENGTH;
2687                 bytes_left -= CB_MAX_LENGTH;
2688         }
2689
2690         /* add the buffer tail */
2691         if (bytes_left > 0) {
2692                 status =
2693                     ipw_fw_dma_add_command_block(priv, src_phys + src_offset,
2694                                                  dest_address + dest_offset,
2695                                                  bytes_left, 0, 0);
2696                 if (status) {
2697                         IPW_DEBUG_FW_INFO(": Failed on the buffer tail\n");
2698                         return -1;
2699                 } else
2700                         IPW_DEBUG_FW_INFO
2701                             (": Adding new cb - the buffer tail\n");
2702         }
2703
2704         IPW_DEBUG_FW("<< \n");
2705         return 0;
2706 }
2707
2708 static int ipw_fw_dma_wait(struct ipw_priv *priv)
2709 {
2710         u32 current_index = 0;
2711         u32 watchdog = 0;
2712
2713         IPW_DEBUG_FW(">> : \n");
2714
2715         current_index = ipw_fw_dma_command_block_index(priv);
2716         IPW_DEBUG_FW_INFO("sram_desc.last_cb_index:0x%8X\n",
2717                           (int)priv->sram_desc.last_cb_index);
2718
2719         while (current_index < priv->sram_desc.last_cb_index) {
2720                 udelay(50);
2721                 current_index = ipw_fw_dma_command_block_index(priv);
2722
2723                 watchdog++;
2724
2725                 if (watchdog > 400) {
2726                         IPW_DEBUG_FW_INFO("Timeout\n");
2727                         ipw_fw_dma_dump_command_block(priv);
2728                         ipw_fw_dma_abort(priv);
2729                         return -1;
2730                 }
2731         }
2732
2733         ipw_fw_dma_abort(priv);
2734
2735         /*Disable the DMA in the CSR register */
2736         ipw_set_bit(priv, IPW_RESET_REG,
2737                     IPW_RESET_REG_MASTER_DISABLED | IPW_RESET_REG_STOP_MASTER);
2738
2739         IPW_DEBUG_FW("<< dmaWaitSync \n");
2740         return 0;
2741 }
2742
2743 static void ipw_remove_current_network(struct ipw_priv *priv)
2744 {
2745         struct list_head *element, *safe;
2746         struct ieee80211_network *network = NULL;
2747         unsigned long flags;
2748
2749         spin_lock_irqsave(&priv->ieee->lock, flags);
2750         list_for_each_safe(element, safe, &priv->ieee->network_list) {
2751                 network = list_entry(element, struct ieee80211_network, list);
2752                 if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
2753                         list_del(element);
2754                         list_add_tail(&network->list,
2755                                       &priv->ieee->network_free_list);
2756                 }
2757         }
2758         spin_unlock_irqrestore(&priv->ieee->lock, flags);
2759 }
2760
2761 /**
2762  * Check that card is still alive.
2763  * Reads debug register from domain0.
2764  * If card is present, pre-defined value should
2765  * be found there.
2766  *
2767  * @param priv
2768  * @return 1 if card is present, 0 otherwise
2769  */
2770 static inline int ipw_alive(struct ipw_priv *priv)
2771 {
2772         return ipw_read32(priv, 0x90) == 0xd55555d5;
2773 }
2774
2775 static inline int ipw_poll_bit(struct ipw_priv *priv, u32 addr, u32 mask,
2776                                int timeout)
2777 {
2778         int i = 0;
2779
2780         do {
2781                 if ((ipw_read32(priv, addr) & mask) == mask)
2782                         return i;
2783                 mdelay(10);
2784                 i += 10;
2785         } while (i < timeout);
2786
2787         return -ETIME;
2788 }
2789
2790 /* These functions load the firmware and micro code for the operation of
2791  * the ipw hardware.  It assumes the buffer has all the bits for the
2792  * image and the caller is handling the memory allocation and clean up.
2793  */
2794
2795 static int ipw_stop_master(struct ipw_priv *priv)
2796 {
2797         int rc;
2798
2799         IPW_DEBUG_TRACE(">> \n");
2800         /* stop master. typical delay - 0 */
2801         ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
2802
2803         rc = ipw_poll_bit(priv, IPW_RESET_REG,
2804                           IPW_RESET_REG_MASTER_DISABLED, 100);
2805         if (rc < 0) {
2806                 IPW_ERROR("stop master failed in 10ms\n");
2807                 return -1;
2808         }
2809
2810         IPW_DEBUG_INFO("stop master %dms\n", rc);
2811
2812         return rc;
2813 }
2814
2815 static void ipw_arc_release(struct ipw_priv *priv)
2816 {
2817         IPW_DEBUG_TRACE(">> \n");
2818         mdelay(5);
2819
2820         ipw_clear_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
2821
2822         /* no one knows timing, for safety add some delay */
2823         mdelay(5);
2824 }
2825
2826 struct fw_header {
2827         u32 version;
2828         u32 mode;
2829 };
2830
2831 struct fw_chunk {
2832         u32 address;
2833         u32 length;
2834 };
2835
2836 #define IPW_FW_MAJOR_VERSION 2
2837 #define IPW_FW_MINOR_VERSION 4
2838
2839 #define IPW_FW_MINOR(x) ((x & 0xff) >> 8)
2840 #define IPW_FW_MAJOR(x) (x & 0xff)
2841
2842 #define IPW_FW_VERSION ((IPW_FW_MINOR_VERSION << 8) | IPW_FW_MAJOR_VERSION)
2843
2844 #define IPW_FW_PREFIX "ipw-" __stringify(IPW_FW_MAJOR_VERSION) \
2845 "." __stringify(IPW_FW_MINOR_VERSION) "-"
2846
2847 #if IPW_FW_MAJOR_VERSION >= 2 && IPW_FW_MINOR_VERSION > 0
2848 #define IPW_FW_NAME(x) IPW_FW_PREFIX "" x ".fw"
2849 #else
2850 #define IPW_FW_NAME(x) "ipw2200_" x ".fw"
2851 #endif
2852
2853 static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len)
2854 {
2855         int rc = 0, i, addr;
2856         u8 cr = 0;
2857         u16 *image;
2858
2859         image = (u16 *) data;
2860
2861         IPW_DEBUG_TRACE(">> \n");
2862
2863         rc = ipw_stop_master(priv);
2864
2865         if (rc < 0)
2866                 return rc;
2867
2868 //      spin_lock_irqsave(&priv->lock, flags);
2869
2870         for (addr = IPW_SHARED_LOWER_BOUND;
2871              addr < IPW_REGISTER_DOMAIN1_END; addr += 4) {
2872                 ipw_write32(priv, addr, 0);
2873         }
2874
2875         /* no ucode (yet) */
2876         memset(&priv->dino_alive, 0, sizeof(priv->dino_alive));
2877         /* destroy DMA queues */
2878         /* reset sequence */
2879
2880         ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_ON);
2881         ipw_arc_release(priv);
2882         ipw_write_reg32(priv, IPW_MEM_HALT_AND_RESET, IPW_BIT_HALT_RESET_OFF);
2883         mdelay(1);
2884
2885         /* reset PHY */
2886         ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, IPW_BASEBAND_POWER_DOWN);
2887         mdelay(1);
2888
2889         ipw_write_reg32(priv, IPW_INTERNAL_CMD_EVENT, 0);
2890         mdelay(1);
2891
2892         /* enable ucode store */
2893         ipw_write_reg8(priv, DINO_CONTROL_REG, 0x0);
2894         ipw_write_reg8(priv, DINO_CONTROL_REG, DINO_ENABLE_CS);
2895         mdelay(1);
2896
2897         /* write ucode */
2898         /**
2899          * @bug
2900          * Do NOT set indirect address register once and then
2901          * store data to indirect data register in the loop.
2902          * It seems very reasonable, but in this case DINO do not
2903          * accept ucode. It is essential to set address each time.
2904          */
2905         /* load new ipw uCode */
2906         for (i = 0; i < len / 2; i++)
2907                 ipw_write_reg16(priv, IPW_BASEBAND_CONTROL_STORE,
2908                                 cpu_to_le16(image[i]));
2909
2910         /* enable DINO */
2911         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
2912         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, DINO_ENABLE_SYSTEM);
2913
2914         /* this is where the igx / win driver deveates from the VAP driver. */
2915
2916         /* wait for alive response */
2917         for (i = 0; i < 100; i++) {
2918                 /* poll for incoming data */
2919                 cr = ipw_read_reg8(priv, IPW_BASEBAND_CONTROL_STATUS);
2920                 if (cr & DINO_RXFIFO_DATA)
2921                         break;
2922                 mdelay(1);
2923         }
2924
2925         if (cr & DINO_RXFIFO_DATA) {
2926                 /* alive_command_responce size is NOT multiple of 4 */
2927                 u32 response_buffer[(sizeof(priv->dino_alive) + 3) / 4];
2928
2929                 for (i = 0; i < ARRAY_SIZE(response_buffer); i++)
2930                         response_buffer[i] =
2931                             le32_to_cpu(ipw_read_reg32(priv,
2932                                                        IPW_BASEBAND_RX_FIFO_READ));
2933                 memcpy(&priv->dino_alive, response_buffer,
2934                        sizeof(priv->dino_alive));
2935                 if (priv->dino_alive.alive_command == 1
2936                     && priv->dino_alive.ucode_valid == 1) {
2937                         rc = 0;
2938                         IPW_DEBUG_INFO
2939                             ("Microcode OK, rev. %d (0x%x) dev. %d (0x%x) "
2940                              "of %02d/%02d/%02d %02d:%02d\n",
2941                              priv->dino_alive.software_revision,
2942                              priv->dino_alive.software_revision,
2943                              priv->dino_alive.device_identifier,
2944                              priv->dino_alive.device_identifier,
2945                              priv->dino_alive.time_stamp[0],
2946                              priv->dino_alive.time_stamp[1],
2947                              priv->dino_alive.time_stamp[2],
2948                              priv->dino_alive.time_stamp[3],
2949                              priv->dino_alive.time_stamp[4]);
2950                 } else {
2951                         IPW_DEBUG_INFO("Microcode is not alive\n");
2952                         rc = -EINVAL;
2953                 }
2954         } else {
2955                 IPW_DEBUG_INFO("No alive response from DINO\n");
2956                 rc = -ETIME;
2957         }
2958
2959         /* disable DINO, otherwise for some reason
2960            firmware have problem getting alive resp. */
2961         ipw_write_reg8(priv, IPW_BASEBAND_CONTROL_STATUS, 0);
2962
2963 //      spin_unlock_irqrestore(&priv->lock, flags);
2964
2965         return rc;
2966 }
2967
2968 static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
2969 {
2970         int rc = -1;
2971         int offset = 0;
2972         struct fw_chunk *chunk;
2973         dma_addr_t shared_phys;
2974         u8 *shared_virt;
2975
2976         IPW_DEBUG_TRACE("<< : \n");
2977         shared_virt = pci_alloc_consistent(priv->pci_dev, len, &shared_phys);
2978
2979         if (!shared_virt)
2980                 return -ENOMEM;
2981
2982         memmove(shared_virt, data, len);
2983
2984         /* Start the Dma */
2985         rc = ipw_fw_dma_enable(priv);
2986
2987         if (priv->sram_desc.last_cb_index > 0) {
2988                 /* the DMA is already ready this would be a bug. */
2989                 BUG();
2990                 goto out;
2991         }
2992
2993         do {
2994                 chunk = (struct fw_chunk *)(data + offset);
2995                 offset += sizeof(struct fw_chunk);
2996                 /* build DMA packet and queue up for sending */
2997                 /* dma to chunk->address, the chunk->length bytes from data +
2998                  * offeset*/
2999                 /* Dma loading */
3000                 rc = ipw_fw_dma_add_buffer(priv, shared_phys + offset,
3001                                            le32_to_cpu(chunk->address),
3002                                            le32_to_cpu(chunk->length));
3003                 if (rc) {
3004                         IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
3005                         goto out;
3006                 }
3007
3008                 offset += le32_to_cpu(chunk->length);
3009         } while (offset < len);
3010
3011         /* Run the DMA and wait for the answer */
3012         rc = ipw_fw_dma_kick(priv);
3013         if (rc) {
3014                 IPW_ERROR("dmaKick Failed\n");
3015                 goto out;
3016         }
3017
3018         rc = ipw_fw_dma_wait(priv);
3019         if (rc) {
3020                 IPW_ERROR("dmaWaitSync Failed\n");
3021                 goto out;
3022         }
3023       out:
3024         pci_free_consistent(priv->pci_dev, len, shared_virt, shared_phys);
3025         return rc;
3026 }
3027
3028 /* stop nic */
3029 static int ipw_stop_nic(struct ipw_priv *priv)
3030 {
3031         int rc = 0;
3032
3033         /* stop */
3034         ipw_write32(priv, IPW_RESET_REG, IPW_RESET_REG_STOP_MASTER);
3035
3036         rc = ipw_poll_bit(priv, IPW_RESET_REG,
3037                           IPW_RESET_REG_MASTER_DISABLED, 500);
3038         if (rc < 0) {
3039                 IPW_ERROR("wait for reg master disabled failed\n");
3040                 return rc;
3041         }
3042
3043         ipw_set_bit(priv, IPW_RESET_REG, CBD_RESET_REG_PRINCETON_RESET);
3044
3045         return rc;
3046 }
3047
3048 static void ipw_start_nic(struct ipw_priv *priv)
3049 {
3050         IPW_DEBUG_TRACE(">>\n");
3051
3052         /* prvHwStartNic  release ARC */
3053         ipw_clear_bit(priv, IPW_RESET_REG,
3054                       IPW_RESET_REG_MASTER_DISABLED |
3055                       IPW_RESET_REG_STOP_MASTER |
3056                       CBD_RESET_REG_PRINCETON_RESET);
3057
3058         /* enable power management */
3059         ipw_set_bit(priv, IPW_GP_CNTRL_RW,
3060                     IPW_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
3061
3062         IPW_DEBUG_TRACE("<<\n");
3063 }
3064
3065 static int ipw_init_nic(struct ipw_priv *priv)
3066 {
3067         int rc;
3068
3069         IPW_DEBUG_TRACE(">>\n");
3070         /* reset */
3071         /*prvHwInitNic */
3072         /* set "initialization complete" bit to move adapter to D0 state */
3073         ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3074
3075         /* low-level PLL activation */
3076         ipw_write32(priv, IPW_READ_INT_REGISTER,
3077                     IPW_BIT_INT_HOST_SRAM_READ_INT_REGISTER);
3078
3079         /* wait for clock stabilization */
3080         rc = ipw_poll_bit(priv, IPW_GP_CNTRL_RW,
3081                           IPW_GP_CNTRL_BIT_CLOCK_READY, 250);
3082         if (rc < 0)
3083                 IPW_DEBUG_INFO("FAILED wait for clock stablization\n");
3084
3085         /* assert SW reset */
3086         ipw_set_bit(priv, IPW_RESET_REG, IPW_RESET_REG_SW_RESET);
3087
3088         udelay(10);
3089
3090         /* set "initialization complete" bit to move adapter to D0 state */
3091         ipw_set_bit(priv, IPW_GP_CNTRL_RW, IPW_GP_CNTRL_BIT_INIT_DONE);
3092
3093         IPW_DEBUG_TRACE(">>\n");
3094         return 0;
3095 }
3096
3097 /* Call this function from process context, it will sleep in request_firmware.
3098  * Probe is an ok place to call this from.
3099  */
3100 static int ipw_reset_nic(struct ipw_priv *priv)
3101 {
3102         int rc = 0;
3103         unsigned long flags;
3104
3105         IPW_DEBUG_TRACE(">>\n");
3106
3107         rc = ipw_init_nic(priv);
3108
3109         spin_lock_irqsave(&priv->lock, flags);
3110         /* Clear the 'host command active' bit... */
3111         priv->status &= ~STATUS_HCMD_ACTIVE;
3112         wake_up_interruptible(&priv->wait_command_queue);
3113         priv->status &= ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
3114         wake_up_interruptible(&priv->wait_state);
3115         spin_unlock_irqrestore(&priv->lock, flags);
3116
3117         IPW_DEBUG_TRACE("<<\n");
3118         return rc;
3119 }
3120
3121 static int ipw_get_fw(struct ipw_priv *priv,
3122                       const struct firmware **fw, const char *name)
3123 {
3124         struct fw_header *header;
3125         int rc;
3126
3127         /* ask firmware_class module to get the boot firmware off disk */
3128         rc = request_firmware(fw, name, &priv->pci_dev->dev);
3129         if (rc < 0) {
3130                 IPW_ERROR("%s load failed: Reason %d\n", name, rc);
3131                 return rc;
3132         }
3133
3134         header = (struct fw_header *)(*fw)->data;
3135         if (IPW_FW_MAJOR(le32_to_cpu(header->version)) != IPW_FW_MAJOR_VERSION) {
3136                 IPW_ERROR("'%s' firmware version not compatible (%d != %d)\n",
3137                           name,
3138                           IPW_FW_MAJOR(le32_to_cpu(header->version)),
3139                           IPW_FW_MAJOR_VERSION);
3140                 return -EINVAL;
3141         }
3142
3143         IPW_DEBUG_INFO("Loading firmware '%s' file v%d.%d (%zd bytes)\n",
3144                        name,
3145                        IPW_FW_MAJOR(le32_to_cpu(header->version)),
3146                        IPW_FW_MINOR(le32_to_cpu(header->version)),
3147                        (*fw)->size - sizeof(struct fw_header));
3148         return 0;
3149 }
3150
3151 #define IPW_RX_BUF_SIZE (3000)
3152
3153 static inline void ipw_rx_queue_reset(struct ipw_priv *priv,
3154                                       struct ipw_rx_queue *rxq)
3155 {
3156         unsigned long flags;
3157         int i;
3158
3159         spin_lock_irqsave(&rxq->lock, flags);
3160
3161         INIT_LIST_HEAD(&rxq->rx_free);
3162         INIT_LIST_HEAD(&rxq->rx_used);
3163
3164         /* Fill the rx_used queue with _all_ of the Rx buffers */
3165         for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
3166                 /* In the reset function, these buffers may have been allocated
3167                  * to an SKB, so we need to unmap and free potential storage */
3168                 if (rxq->pool[i].skb != NULL) {
3169                         pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
3170                                          IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
3171                         dev_kfree_skb(rxq->pool[i].skb);
3172                         rxq->pool[i].skb = NULL;
3173                 }
3174                 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
3175         }
3176
3177         /* Set us so that we have processed and used all buffers, but have
3178          * not restocked the Rx queue with fresh buffers */
3179         rxq->read = rxq->write = 0;
3180         rxq->processed = RX_QUEUE_SIZE - 1;
3181         rxq->free_count = 0;
3182         spin_unlock_irqrestore(&rxq->lock, flags);
3183 }
3184
3185 #ifdef CONFIG_PM
3186 static int fw_loaded = 0;
3187 static const struct firmware *bootfw = NULL;
3188 static const struct firmware *firmware = NULL;
3189 static const struct firmware *ucode = NULL;
3190
3191 static void free_firmware(void)
3192 {
3193         if (fw_loaded) {
3194                 release_firmware(bootfw);
3195                 release_firmware(ucode);
3196                 release_firmware(firmware);
3197                 bootfw = ucode = firmware = NULL;
3198                 fw_loaded = 0;
3199         }
3200 }
3201 #else
3202 #define free_firmware() do {} while (0)
3203 #endif
3204
3205 static int ipw_load(struct ipw_priv *priv)
3206 {
3207 #ifndef CONFIG_PM
3208         const struct firmware *bootfw = NULL;
3209         const struct firmware *firmware = NULL;
3210         const struct firmware *ucode = NULL;
3211 #endif
3212         int rc = 0, retries = 3;
3213
3214 #ifdef CONFIG_PM
3215         if (!fw_loaded) {
3216 #endif
3217                 rc = ipw_get_fw(priv, &bootfw, IPW_FW_NAME("boot"));
3218                 if (rc)
3219                         goto error;
3220
3221                 switch (priv->ieee->iw_mode) {
3222                 case IW_MODE_ADHOC:
3223                         rc = ipw_get_fw(priv, &ucode,
3224                                         IPW_FW_NAME("ibss_ucode"));
3225                         if (rc)
3226                                 goto error;
3227
3228                         rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("ibss"));
3229                         break;
3230
3231 #ifdef CONFIG_IPW2200_MONITOR
3232                 case IW_MODE_MONITOR:
3233                         rc = ipw_get_fw(priv, &ucode,
3234                                         IPW_FW_NAME("sniffer_ucode"));
3235                         if (rc)
3236                                 goto error;
3237
3238                         rc = ipw_get_fw(priv, &firmware,
3239                                         IPW_FW_NAME("sniffer"));
3240                         break;
3241 #endif
3242                 case IW_MODE_INFRA:
3243                         rc = ipw_get_fw(priv, &ucode, IPW_FW_NAME("bss_ucode"));
3244                         if (rc)
3245                                 goto error;
3246
3247                         rc = ipw_get_fw(priv, &firmware, IPW_FW_NAME("bss"));
3248                         break;
3249
3250                 default:
3251                         rc = -EINVAL;
3252                 }
3253
3254                 if (rc)
3255                         goto error;
3256
3257 #ifdef CONFIG_PM
3258                 fw_loaded = 1;
3259         }
3260 #endif
3261
3262         if (!priv->rxq)
3263                 priv->rxq = ipw_rx_queue_alloc(priv);
3264         else
3265                 ipw_rx_queue_reset(priv, priv->rxq);
3266         if (!priv->rxq) {
3267                 IPW_ERROR("Unable to initialize Rx queue\n");
3268                 goto error;
3269         }
3270
3271       retry:
3272         /* Ensure interrupts are disabled */
3273         ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3274         priv->status &= ~STATUS_INT_ENABLED;
3275
3276         /* ack pending interrupts */
3277         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3278
3279         ipw_stop_nic(priv);
3280
3281         rc = ipw_reset_nic(priv);
3282         if (rc) {
3283                 IPW_ERROR("Unable to reset NIC\n");
3284                 goto error;
3285         }
3286
3287         ipw_zero_memory(priv, IPW_NIC_SRAM_LOWER_BOUND,
3288                         IPW_NIC_SRAM_UPPER_BOUND - IPW_NIC_SRAM_LOWER_BOUND);
3289
3290         /* DMA the initial boot firmware into the device */
3291         rc = ipw_load_firmware(priv, bootfw->data + sizeof(struct fw_header),
3292                                bootfw->size - sizeof(struct fw_header));
3293         if (rc < 0) {
3294                 IPW_ERROR("Unable to load boot firmware: %d\n", rc);
3295                 goto error;
3296         }
3297
3298         /* kick start the device */
3299         ipw_start_nic(priv);
3300
3301         /* wait for the device to finish it's initial startup sequence */
3302         rc = ipw_poll_bit(priv, IPW_INTA_RW,
3303                           IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3304         if (rc < 0) {
3305                 IPW_ERROR("device failed to boot initial fw image\n");
3306                 goto error;
3307         }
3308         IPW_DEBUG_INFO("initial device response after %dms\n", rc);
3309
3310         /* ack fw init done interrupt */
3311         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3312
3313         /* DMA the ucode into the device */
3314         rc = ipw_load_ucode(priv, ucode->data + sizeof(struct fw_header),
3315                             ucode->size - sizeof(struct fw_header));
3316         if (rc < 0) {
3317                 IPW_ERROR("Unable to load ucode: %d\n", rc);
3318                 goto error;
3319         }
3320
3321         /* stop nic */
3322         ipw_stop_nic(priv);
3323
3324         /* DMA bss firmware into the device */
3325         rc = ipw_load_firmware(priv, firmware->data +
3326                                sizeof(struct fw_header),
3327                                firmware->size - sizeof(struct fw_header));
3328         if (rc < 0) {
3329                 IPW_ERROR("Unable to load firmware: %d\n", rc);
3330                 goto error;
3331         }
3332
3333         ipw_write32(priv, IPW_EEPROM_LOAD_DISABLE, 0);
3334
3335         rc = ipw_queue_reset(priv);
3336         if (rc) {
3337                 IPW_ERROR("Unable to initialize queues\n");
3338                 goto error;
3339         }
3340
3341         /* Ensure interrupts are disabled */
3342         ipw_write32(priv, IPW_INTA_MASK_R, ~IPW_INTA_MASK_ALL);
3343         /* ack pending interrupts */
3344         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3345
3346         /* kick start the device */
3347         ipw_start_nic(priv);
3348
3349         if (ipw_read32(priv, IPW_INTA_RW) & IPW_INTA_BIT_PARITY_ERROR) {
3350                 if (retries > 0) {
3351                         IPW_WARNING("Parity error.  Retrying init.\n");
3352                         retries--;
3353                         goto retry;
3354                 }
3355
3356                 IPW_ERROR("TODO: Handle parity error -- schedule restart?\n");
3357                 rc = -EIO;
3358                 goto error;
3359         }
3360
3361         /* wait for the device */
3362         rc = ipw_poll_bit(priv, IPW_INTA_RW,
3363                           IPW_INTA_BIT_FW_INITIALIZATION_DONE, 500);
3364         if (rc < 0) {
3365                 IPW_ERROR("device failed to start after 500ms\n");
3366                 goto error;
3367         }
3368         IPW_DEBUG_INFO("device response after %dms\n", rc);
3369
3370         /* ack fw init done interrupt */
3371         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_BIT_FW_INITIALIZATION_DONE);
3372
3373         /* read eeprom data and initialize the eeprom region of sram */
3374         priv->eeprom_delay = 1;
3375         ipw_eeprom_init_sram(priv);
3376
3377         /* enable interrupts */
3378         ipw_enable_interrupts(priv);
3379
3380         /* Ensure our queue has valid packets */
3381         ipw_rx_queue_replenish(priv);
3382
3383         ipw_write32(priv, IPW_RX_READ_INDEX, priv->rxq->read);
3384
3385         /* ack pending interrupts */
3386         ipw_write32(priv, IPW_INTA_RW, IPW_INTA_MASK_ALL);
3387
3388 #ifndef CONFIG_PM
3389         release_firmware(bootfw);
3390         release_firmware(ucode);
3391         release_firmware(firmware);
3392 #endif
3393         return 0;
3394
3395       error:
3396         if (priv->rxq) {
3397                 ipw_rx_queue_free(priv, priv->rxq);
3398                 priv->rxq = NULL;
3399         }
3400         ipw_tx_queue_free(priv);
3401         if (bootfw)
3402                 release_firmware(bootfw);
3403         if (ucode)
3404                 release_firmware(ucode);
3405         if (firmware)
3406                 release_firmware(firmware);
3407 #ifdef CONFIG_PM
3408         fw_loaded = 0;
3409         bootfw = ucode = firmware = NULL;
3410 #endif
3411
3412         return rc;
3413 }
3414
3415 /**
3416  * DMA services
3417  *
3418  * Theory of operation
3419  *
3420  * A queue is a circular buffers with 'Read' and 'Write' pointers.
3421  * 2 empty entries always kept in the buffer to protect from overflow.
3422  *
3423  * For Tx queue, there are low mark and high mark limits. If, after queuing
3424  * the packet for Tx, free space become < low mark, Tx queue stopped. When
3425  * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
3426  * Tx queue resumed.
3427  *
3428  * The IPW operates with six queues, one receive queue in the device's
3429  * sram, one transmit queue for sending commands to the device firmware,
3430  * and four transmit queues for data.
3431  *
3432  * The four transmit queues allow for performing quality of service (qos)
3433  * transmissions as per the 802.11 protocol.  Currently Linux does not
3434  * provide a mechanism to the user for utilizing prioritized queues, so
3435  * we only utilize the first data transmit queue (queue1).
3436  */
3437
3438 /**
3439  * Driver allocates buffers of this size for Rx
3440  */
3441
3442 static inline int ipw_queue_space(const struct clx2_queue *q)
3443 {
3444         int s = q->last_used - q->first_empty;
3445         if (s <= 0)
3446                 s += q->n_bd;
3447         s -= 2;                 /* keep some reserve to not confuse empty and full situations */
3448         if (s < 0)
3449                 s = 0;
3450         return s;
3451 }
3452
3453 static inline int ipw_queue_inc_wrap(int index, int n_bd)
3454 {
3455         return (++index == n_bd) ? 0 : index;
3456 }
3457
3458 /**
3459  * Initialize common DMA queue structure
3460  *
3461  * @param q                queue to init
3462  * @param count            Number of BD's to allocate. Should be power of 2
3463  * @param read_register    Address for 'read' register
3464  *                         (not offset within BAR, full address)
3465  * @param write_register   Address for 'write' register
3466  *                         (not offset within BAR, full address)
3467  * @param base_register    Address for 'base' register
3468  *                         (not offset within BAR, full address)
3469  * @param size             Address for 'size' register
3470  *                         (not offset within BAR, full address)
3471  */
3472 static void ipw_queue_init(struct ipw_priv *priv, struct clx2_queue *q,
3473                            int count, u32 read, u32 write, u32 base, u32 size)
3474 {
3475         q->n_bd = count;
3476
3477         q->low_mark = q->n_bd / 4;
3478         if (q->low_mark < 4)
3479                 q->low_mark = 4;
3480
3481         q->high_mark = q->n_bd / 8;
3482         if (q->high_mark < 2)
3483                 q->high_mark = 2;
3484
3485         q->first_empty = q->last_used = 0;
3486         q->reg_r = read;
3487         q->reg_w = write;
3488
3489         ipw_write32(priv, base, q->dma_addr);
3490         ipw_write32(priv, size, count);
3491         ipw_write32(priv, read, 0);
3492         ipw_write32(priv, write, 0);
3493
3494         _ipw_read32(priv, 0x90);
3495 }
3496
3497 static int ipw_queue_tx_init(struct ipw_priv *priv,
3498                              struct clx2_tx_queue *q,
3499                              int count, u32 read, u32 write, u32 base, u32 size)
3500 {
3501         struct pci_dev *dev = priv->pci_dev;
3502
3503         q->txb = kmalloc(sizeof(q->txb[0]) * count, GFP_KERNEL);
3504         if (!q->txb) {
3505                 IPW_ERROR("vmalloc for auxilary BD structures failed\n");
3506                 return -ENOMEM;
3507         }
3508
3509         q->bd =
3510             pci_alloc_consistent(dev, sizeof(q->bd[0]) * count, &q->q.dma_addr);
3511         if (!q->bd) {
3512                 IPW_ERROR("pci_alloc_consistent(%zd) failed\n",
3513                           sizeof(q->bd[0]) * count);
3514                 kfree(q->txb);
3515                 q->txb = NULL;
3516                 return -ENOMEM;
3517         }
3518
3519         ipw_queue_init(priv, &q->q, count, read, write, base, size);
3520         return 0;
3521 }
3522
3523 /**
3524  * Free one TFD, those at index [txq->q.last_used].
3525  * Do NOT advance any indexes
3526  *
3527  * @param dev
3528  * @param txq
3529  */
3530 static void ipw_queue_tx_free_tfd(struct ipw_priv *priv,
3531                                   struct clx2_tx_queue *txq)
3532 {
3533         struct tfd_frame *bd = &txq->bd[txq->q.last_used];
3534         struct pci_dev *dev = priv->pci_dev;
3535         int i;
3536
3537         /* classify bd */
3538         if (bd->control_flags.message_type == TX_HOST_COMMAND_TYPE)
3539                 /* nothing to cleanup after for host commands */
3540                 return;
3541
3542         /* sanity check */
3543         if (le32_to_cpu(bd->u.data.num_chunks) > NUM_TFD_CHUNKS) {
3544                 IPW_ERROR("Too many chunks: %i\n",
3545                           le32_to_cpu(bd->u.data.num_chunks));
3546                 /** @todo issue fatal error, it is quite serious situation */
3547                 return;
3548         }
3549
3550         /* unmap chunks if any */
3551         for (i = 0; i < le32_to_cpu(bd->u.data.num_chunks); i++) {
3552                 pci_unmap_single(dev, le32_to_cpu(bd->u.data.chunk_ptr[i]),
3553                                  le16_to_cpu(bd->u.data.chunk_len[i]),
3554                                  PCI_DMA_TODEVICE);
3555                 if (txq->txb[txq->q.last_used]) {
3556                         ieee80211_txb_free(txq->txb[txq->q.last_used]);
3557                         txq->txb[txq->q.last_used] = NULL;
3558                 }
3559         }
3560 }
3561
3562 /**
3563  * Deallocate DMA queue.
3564  *
3565  * Empty queue by removing and destroying all BD's.
3566  * Free all buffers.
3567  *
3568  * @param dev
3569  * @param q
3570  */
3571 static void ipw_queue_tx_free(struct ipw_priv *priv, struct clx2_tx_queue *txq)
3572 {
3573         struct clx2_queue *q = &txq->q;
3574         struct pci_dev *dev = priv->pci_dev;
3575
3576         if (q->n_bd == 0)
3577                 return;
3578
3579         /* first, empty all BD's */
3580         for (; q->first_empty != q->last_used;
3581              q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
3582                 ipw_queue_tx_free_tfd(priv, txq);
3583         }
3584
3585         /* free buffers belonging to queue itself */
3586         pci_free_consistent(dev, sizeof(txq->bd[0]) * q->n_bd, txq->bd,
3587                             q->dma_addr);
3588         kfree(txq->txb);
3589
3590         /* 0 fill whole structure */
3591         memset(txq, 0, sizeof(*txq));
3592 }
3593
3594 /**
3595  * Destroy all DMA queues and structures
3596  *
3597  * @param priv
3598  */
3599 static void ipw_tx_queue_free(struct ipw_priv *priv)
3600 {
3601         /* Tx CMD queue */
3602         ipw_queue_tx_free(priv, &priv->txq_cmd);
3603
3604         /* Tx queues */
3605         ipw_queue_tx_free(priv, &priv->txq[0]);
3606         ipw_queue_tx_free(priv, &priv->txq[1]);
3607         ipw_queue_tx_free(priv, &priv->txq[2]);
3608         ipw_queue_tx_free(priv, &priv->txq[3]);
3609 }
3610
3611 static inline void ipw_create_bssid(struct ipw_priv *priv, u8 * bssid)
3612 {
3613         /* First 3 bytes are manufacturer */
3614         bssid[0] = priv->mac_addr[0];
3615         bssid[1] = priv->mac_addr[1];
3616         bssid[2] = priv->mac_addr[2];
3617
3618         /* Last bytes are random */
3619         get_random_bytes(&bssid[3], ETH_ALEN - 3);
3620
3621         bssid[0] &= 0xfe;       /* clear multicast bit */
3622         bssid[0] |= 0x02;       /* set local assignment bit (IEEE802) */
3623 }
3624
3625 static inline u8 ipw_add_station(struct ipw_priv *priv, u8 * bssid)
3626 {
3627         struct ipw_station_entry entry;
3628         int i;
3629
3630         for (i = 0; i < priv->num_stations; i++) {
3631                 if (!memcmp(priv->stations[i], bssid, ETH_ALEN)) {
3632                         /* Another node is active in network */
3633                         priv->missed_adhoc_beacons = 0;
3634                         if (!(priv->config & CFG_STATIC_CHANNEL))
3635                                 /* when other nodes drop out, we drop out */
3636                                 priv->config &= ~CFG_ADHOC_PERSIST;
3637
3638                         return i;
3639                 }
3640         }
3641
3642         if (i == MAX_STATIONS)
3643                 return IPW_INVALID_STATION;
3644
3645         IPW_DEBUG_SCAN("Adding AdHoc station: " MAC_FMT "\n", MAC_ARG(bssid));
3646
3647         entry.reserved = 0;
3648         entry.support_mode = 0;
3649         memcpy(entry.mac_addr, bssid, ETH_ALEN);
3650         memcpy(priv->stations[i], bssid, ETH_ALEN);
3651         ipw_write_direct(priv, IPW_STATION_TABLE_LOWER + i * sizeof(entry),
3652                          &entry, sizeof(entry));
3653         priv->num_stations++;
3654
3655         return i;
3656 }
3657
3658 static inline u8 ipw_find_station(struct ipw_priv *priv, u8 * bssid)
3659 {
3660         int i;
3661
3662         for (i = 0; i < priv->num_stations; i++)
3663                 if (!memcmp(priv->stations[i], bssid, ETH_ALEN))
3664                         return i;
3665
3666         return IPW_INVALID_STATION;
3667 }
3668
3669 static void ipw_send_disassociate(struct ipw_priv *priv, int quiet)
3670 {
3671         int err;
3672
3673         if (priv->status & STATUS_ASSOCIATING) {
3674                 IPW_DEBUG_ASSOC("Disassociating while associating.\n");
3675                 queue_work(priv->workqueue, &priv->disassociate);
3676                 return;
3677         }
3678
3679         if (!(priv->status & STATUS_ASSOCIATED)) {
3680                 IPW_DEBUG_ASSOC("Disassociating while not associated.\n");
3681                 return;
3682         }
3683
3684         IPW_DEBUG_ASSOC("Disassocation attempt from " MAC_FMT " "
3685                         "on channel %d.\n",
3686                         MAC_ARG(priv->assoc_request.bssid),
3687                         priv->assoc_request.channel);
3688
3689         priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
3690         priv->status |= STATUS_DISASSOCIATING;
3691
3692         if (quiet)
3693                 priv->assoc_request.assoc_type = HC_DISASSOC_QUIET;
3694         else
3695                 priv->assoc_request.assoc_type = HC_DISASSOCIATE;
3696
3697         err = ipw_send_associate(priv, &priv->assoc_request);
3698         if (err) {
3699                 IPW_DEBUG_HC("Attempt to send [dis]associate command "
3700                              "failed.\n");
3701                 return;
3702         }
3703
3704 }
3705
3706 static int ipw_disassociate(void *data)
3707 {
3708         struct ipw_priv *priv = data;
3709         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
3710                 return 0;
3711         ipw_send_disassociate(data, 0);
3712         return 1;
3713 }
3714
3715 static void ipw_bg_disassociate(void *data)
3716 {
3717         struct ipw_priv *priv = data;
3718         down(&priv->sem);
3719         ipw_disassociate(data);
3720         up(&priv->sem);
3721 }
3722
3723 static void ipw_system_config(void *data)
3724 {
3725         struct ipw_priv *priv = data;
3726         ipw_send_system_config(priv, &priv->sys_config);
3727 }
3728
3729 struct ipw_status_code {
3730         u16 status;
3731         const char *reason;
3732 };
3733
3734 static const struct ipw_status_code ipw_status_codes[] = {
3735         {0x00, "Successful"},
3736         {0x01, "Unspecified failure"},
3737         {0x0A, "Cannot support all requested capabilities in the "
3738          "Capability information field"},
3739         {0x0B, "Reassociation denied due to inability to confirm that "
3740          "association exists"},
3741         {0x0C, "Association denied due to reason outside the scope of this "
3742          "standard"},
3743         {0x0D,
3744          "Responding station does not support the specified authentication "
3745          "algorithm"},
3746         {0x0E,
3747          "Received an Authentication frame with authentication sequence "
3748          "transaction sequence number out of expected sequence"},
3749         {0x0F, "Authentication rejected because of challenge failure"},
3750         {0x10, "Authentication rejected due to timeout waiting for next "
3751          "frame in sequence"},
3752         {0x11, "Association denied because AP is unable to handle additional "
3753          "associated stations"},
3754         {0x12,
3755          "Association denied due to requesting station not supporting all "
3756          "of the datarates in the BSSBasicServiceSet Parameter"},
3757         {0x13,
3758          "Association denied due to requesting station not supporting "
3759          "short preamble operation"},
3760         {0x14,
3761          "Association denied due to requesting station not supporting "
3762          "PBCC encoding"},
3763         {0x15,
3764          "Association denied due to requesting station not supporting "
3765          "channel agility"},
3766         {0x19,
3767          "Association denied due to requesting station not supporting "
3768          "short slot operation"},
3769         {0x1A,
3770          "Association denied due to requesting station not supporting "
3771          "DSSS-OFDM operation"},
3772         {0x28, "Invalid Information Element"},
3773         {0x29, "Group Cipher is not valid"},
3774         {0x2A, "Pairwise Cipher is not valid"},
3775         {0x2B, "AKMP is not valid"},
3776         {0x2C, "Unsupported RSN IE version"},
3777         {0x2D, "Invalid RSN IE Capabilities"},
3778         {0x2E, "Cipher suite is rejected per security policy"},
3779 };
3780
3781 #ifdef CONFIG_IPW2200_DEBUG
3782 static const char *ipw_get_status_code(u16 status)
3783 {
3784         int i;
3785         for (i = 0; i < ARRAY_SIZE(ipw_status_codes); i++)
3786                 if (ipw_status_codes[i].status == (status & 0xff))
3787                         return ipw_status_codes[i].reason;
3788         return "Unknown status value.";
3789 }
3790 #endif
3791
3792 static void inline average_init(struct average *avg)
3793 {
3794         memset(avg, 0, sizeof(*avg));
3795 }
3796
3797 static void inline average_add(struct average *avg, s16 val)
3798 {
3799         avg->sum -= avg->entries[avg->pos];
3800         avg->sum += val;
3801         avg->entries[avg->pos++] = val;
3802         if (unlikely(avg->pos == AVG_ENTRIES)) {
3803                 avg->init = 1;
3804                 avg->pos = 0;
3805         }
3806 }
3807
3808 static s16 inline average_value(struct average *avg)
3809 {
3810         if (!unlikely(avg->init)) {
3811                 if (avg->pos)
3812                         return avg->sum / avg->pos;
3813                 return 0;
3814         }
3815
3816         return avg->sum / AVG_ENTRIES;
3817 }
3818
3819 static void ipw_reset_stats(struct ipw_priv *priv)
3820 {
3821         u32 len = sizeof(u32);
3822
3823         priv->quality = 0;
3824
3825         average_init(&priv->average_missed_beacons);
3826         average_init(&priv->average_rssi);
3827         average_init(&priv->average_noise);
3828
3829         priv->last_rate = 0;
3830         priv->last_missed_beacons = 0;
3831         priv->last_rx_packets = 0;
3832         priv->last_tx_packets = 0;
3833         priv->last_tx_failures = 0;
3834
3835         /* Firmware managed, reset only when NIC is restarted, so we have to
3836          * normalize on the current value */
3837         ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC,
3838                         &priv->last_rx_err, &len);
3839         ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE,
3840                         &priv->last_tx_failures, &len);
3841
3842         /* Driver managed, reset with each association */
3843         priv->missed_adhoc_beacons = 0;
3844         priv->missed_beacons = 0;
3845         priv->tx_packets = 0;
3846         priv->rx_packets = 0;
3847
3848 }
3849
3850 static inline u32 ipw_get_max_rate(struct ipw_priv *priv)
3851 {
3852         u32 i = 0x80000000;
3853         u32 mask = priv->rates_mask;
3854         /* If currently associated in B mode, restrict the maximum
3855          * rate match to B rates */
3856         if (priv->assoc_request.ieee_mode == IPW_B_MODE)
3857                 mask &= IEEE80211_CCK_RATES_MASK;
3858
3859         /* TODO: Verify that the rate is supported by the current rates
3860          * list. */
3861
3862         while (i && !(mask & i))
3863                 i >>= 1;
3864         switch (i) {
3865         case IEEE80211_CCK_RATE_1MB_MASK:
3866                 return 1000000;
3867         case IEEE80211_CCK_RATE_2MB_MASK:
3868                 return 2000000;
3869         case IEEE80211_CCK_RATE_5MB_MASK:
3870                 return 5500000;
3871         case IEEE80211_OFDM_RATE_6MB_MASK:
3872                 return 6000000;
3873         case IEEE80211_OFDM_RATE_9MB_MASK:
3874                 return 9000000;
3875         case IEEE80211_CCK_RATE_11MB_MASK:
3876                 return 11000000;
3877         case IEEE80211_OFDM_RATE_12MB_MASK:
3878                 return 12000000;
3879         case IEEE80211_OFDM_RATE_18MB_MASK:
3880                 return 18000000;
3881         case IEEE80211_OFDM_RATE_24MB_MASK:
3882                 return 24000000;
3883         case IEEE80211_OFDM_RATE_36MB_MASK:
3884                 return 36000000;
3885         case IEEE80211_OFDM_RATE_48MB_MASK:
3886                 return 48000000;
3887         case IEEE80211_OFDM_RATE_54MB_MASK:
3888                 return 54000000;
3889         }
3890
3891         if (priv->ieee->mode == IEEE_B)
3892                 return 11000000;
3893         else
3894                 return 54000000;
3895 }
3896
3897 static u32 ipw_get_current_rate(struct ipw_priv *priv)
3898 {
3899         u32 rate, len = sizeof(rate);
3900         int err;
3901
3902         if (!(priv->status & STATUS_ASSOCIATED))
3903                 return 0;
3904
3905         if (priv->tx_packets > IPW_REAL_RATE_RX_PACKET_THRESHOLD) {
3906                 err = ipw_get_ordinal(priv, IPW_ORD_STAT_TX_CURR_RATE, &rate,
3907                                       &len);
3908                 if (err) {
3909                         IPW_DEBUG_INFO("failed querying ordinals.\n");
3910                         return 0;
3911                 }
3912         } else
3913                 return ipw_get_max_rate(priv);
3914
3915         switch (rate) {
3916         case IPW_TX_RATE_1MB:
3917                 return 1000000;
3918         case IPW_TX_RATE_2MB:
3919                 return 2000000;
3920         case IPW_TX_RATE_5MB:
3921                 return 5500000;
3922         case IPW_TX_RATE_6MB:
3923                 return 6000000;
3924         case IPW_TX_RATE_9MB:
3925                 return 9000000;
3926         case IPW_TX_RATE_11MB:
3927                 return 11000000;
3928         case IPW_TX_RATE_12MB:
3929                 return 12000000;
3930         case IPW_TX_RATE_18MB:
3931                 return 18000000;
3932         case IPW_TX_RATE_24MB:
3933                 return 24000000;
3934         case IPW_TX_RATE_36MB:
3935                 return 36000000;
3936         case IPW_TX_RATE_48MB:
3937                 return 48000000;
3938         case IPW_TX_RATE_54MB:
3939                 return 54000000;
3940         }
3941
3942         return 0;
3943 }
3944
3945 #define IPW_STATS_INTERVAL (2 * HZ)
3946 static void ipw_gather_stats(struct ipw_priv *priv)
3947 {
3948         u32 rx_err, rx_err_delta, rx_packets_delta;
3949         u32 tx_failures, tx_failures_delta, tx_packets_delta;
3950         u32 missed_beacons_percent, missed_beacons_delta;
3951         u32 quality = 0;
3952         u32 len = sizeof(u32);
3953         s16 rssi;
3954         u32 beacon_quality, signal_quality, tx_quality, rx_quality,
3955             rate_quality;
3956         u32 max_rate;
3957
3958         if (!(priv->status & STATUS_ASSOCIATED)) {
3959                 priv->quality = 0;
3960                 return;
3961         }
3962
3963         /* Update the statistics */
3964         ipw_get_ordinal(priv, IPW_ORD_STAT_MISSED_BEACONS,
3965                         &priv->missed_beacons, &len);
3966         missed_beacons_delta = priv->missed_beacons - priv->last_missed_beacons;
3967         priv->last_missed_beacons = priv->missed_beacons;
3968         if (priv->assoc_request.beacon_interval) {
3969                 missed_beacons_percent = missed_beacons_delta *
3970                     (HZ * priv->assoc_request.beacon_interval) /
3971                     (IPW_STATS_INTERVAL * 10);
3972         } else {
3973                 missed_beacons_percent = 0;
3974         }
3975         average_add(&priv->average_missed_beacons, missed_beacons_percent);
3976
3977         ipw_get_ordinal(priv, IPW_ORD_STAT_RX_ERR_CRC, &rx_err, &len);
3978         rx_err_delta = rx_err - priv->last_rx_err;
3979         priv->last_rx_err = rx_err;
3980
3981         ipw_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURE, &tx_failures, &len);
3982         tx_failures_delta = tx_failures - priv->last_tx_failures;
3983         priv->last_tx_failures = tx_failures;
3984
3985         rx_packets_delta = priv->rx_packets - priv->last_rx_packets;
3986         priv->last_rx_packets = priv->rx_packets;
3987
3988         tx_packets_delta = priv->tx_packets - priv->last_tx_packets;
3989         priv->last_tx_packets = priv->tx_packets;
3990
3991         /* Calculate quality based on the following:
3992          *
3993          * Missed beacon: 100% = 0, 0% = 70% missed
3994          * Rate: 60% = 1Mbs, 100% = Max
3995          * Rx and Tx errors represent a straight % of total Rx/Tx
3996          * RSSI: 100% = > -50,  0% = < -80
3997          * Rx errors: 100% = 0, 0% = 50% missed
3998          *
3999          * The lowest computed quality is used.
4000          *
4001          */
4002 #define BEACON_THRESHOLD 5
4003         beacon_quality = 100 - missed_beacons_percent;
4004         if (beacon_quality < BEACON_THRESHOLD)
4005                 beacon_quality = 0;
4006         else
4007                 beacon_quality = (beacon_quality - BEACON_THRESHOLD) * 100 /
4008                     (100 - BEACON_THRESHOLD);
4009         IPW_DEBUG_STATS("Missed beacon: %3d%% (%d%%)\n",
4010                         beacon_quality, missed_beacons_percent);
4011
4012         priv->last_rate = ipw_get_current_rate(priv);
4013         max_rate = ipw_get_max_rate(priv);
4014         rate_quality = priv->last_rate * 40 / max_rate + 60;
4015         IPW_DEBUG_STATS("Rate quality : %3d%% (%dMbs)\n",
4016                         rate_quality, priv->last_rate / 1000000);
4017
4018         if (rx_packets_delta > 100 && rx_packets_delta + rx_err_delta)
4019                 rx_quality = 100 - (rx_err_delta * 100) /
4020                     (rx_packets_delta + rx_err_delta);
4021         else
4022                 rx_quality = 100;
4023         IPW_DEBUG_STATS("Rx quality   : %3d%% (%u errors, %u packets)\n",
4024                         rx_quality, rx_err_delta, rx_packets_delta);
4025
4026         if (tx_packets_delta > 100 && tx_packets_delta + tx_failures_delta)
4027                 tx_quality = 100 - (tx_failures_delta * 100) /
4028                     (tx_packets_delta + tx_failures_delta);
4029         else
4030                 tx_quality = 100;
4031         IPW_DEBUG_STATS("Tx quality   : %3d%% (%u errors, %u packets)\n",
4032                         tx_quality, tx_failures_delta, tx_packets_delta);
4033
4034         rssi = average_value(&priv->average_rssi);
4035         signal_quality =
4036             (100 *
4037              (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4038              (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) -
4039              (priv->ieee->perfect_rssi - rssi) *
4040              (15 * (priv->ieee->perfect_rssi - priv->ieee->worst_rssi) +
4041               62 * (priv->ieee->perfect_rssi - rssi))) /
4042             ((priv->ieee->perfect_rssi - priv->ieee->worst_rssi) *
4043              (priv->ieee->perfect_rssi - priv->ieee->worst_rssi));
4044         if (signal_quality > 100)
4045                 signal_quality = 100;
4046         else if (signal_quality < 1)
4047                 signal_quality = 0;
4048
4049         IPW_DEBUG_STATS("Signal level : %3d%% (%d dBm)\n",
4050                         signal_quality, rssi);
4051
4052         quality = min(beacon_quality,
4053                       min(rate_quality,
4054                           min(tx_quality, min(rx_quality, signal_quality))));
4055         if (quality == beacon_quality)
4056                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to missed beacons.\n",
4057                                 quality);
4058         if (quality == rate_quality)
4059                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to rate quality.\n",
4060                                 quality);
4061         if (quality == tx_quality)
4062                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Tx quality.\n",
4063                                 quality);
4064         if (quality == rx_quality)
4065                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to Rx quality.\n",
4066                                 quality);
4067         if (quality == signal_quality)
4068                 IPW_DEBUG_STATS("Quality (%d%%): Clamped to signal quality.\n",
4069                                 quality);
4070
4071         priv->quality = quality;
4072
4073         queue_delayed_work(priv->workqueue, &priv->gather_stats,
4074                            IPW_STATS_INTERVAL);
4075 }
4076
4077 static void ipw_bg_gather_stats(void *data)
4078 {
4079         struct ipw_priv *priv = data;
4080         down(&priv->sem);
4081         ipw_gather_stats(data);
4082         up(&priv->sem);
4083 }
4084
4085 /* Missed beacon behavior:
4086  * 1st missed -> roaming_threshold, just wait, don't do any scan/roam.
4087  * roaming_threshold -> disassociate_threshold, scan and roam for better signal.
4088  * Above disassociate threshold, give up and stop scanning.
4089  * Roaming is disabled if disassociate_threshold <= roaming_threshold  */
4090 static inline void ipw_handle_missed_beacon(struct ipw_priv *priv,
4091                                             int missed_count)
4092 {
4093         priv->notif_missed_beacons = missed_count;
4094
4095         if (missed_count > priv->disassociate_threshold &&
4096             priv->status & STATUS_ASSOCIATED) {
4097                 /* If associated and we've hit the missed
4098                  * beacon threshold, disassociate, turn
4099                  * off roaming, and abort any active scans */
4100                 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4101                           IPW_DL_STATE | IPW_DL_ASSOC,
4102                           "Missed beacon: %d - disassociate\n", missed_count);
4103                 priv->status &= ~STATUS_ROAMING;
4104                 if (priv->status & STATUS_SCANNING) {
4105                         IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
4106                                   IPW_DL_STATE,
4107                                   "Aborting scan with missed beacon.\n");
4108                         queue_work(priv->workqueue, &priv->abort_scan);
4109                 }
4110
4111                 queue_work(priv->workqueue, &priv->disassociate);
4112                 return;
4113         }
4114
4115         if (priv->status & STATUS_ROAMING) {
4116                 /* If we are currently roaming, then just
4117                  * print a debug statement... */
4118                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4119                           "Missed beacon: %d - roam in progress\n",
4120                           missed_count);
4121                 return;
4122         }
4123
4124         if (missed_count > priv->roaming_threshold &&
4125             missed_count <= priv->disassociate_threshold) {
4126                 /* If we are not already roaming, set the ROAM
4127                  * bit in the status and kick off a scan.
4128                  * This can happen several times before we reach
4129                  * disassociate_threshold. */
4130                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4131                           "Missed beacon: %d - initiate "
4132                           "roaming\n", missed_count);
4133                 if (!(priv->status & STATUS_ROAMING)) {
4134                         priv->status |= STATUS_ROAMING;
4135                         if (!(priv->status & STATUS_SCANNING))
4136                                 queue_work(priv->workqueue,
4137                                            &priv->request_scan);
4138                 }
4139                 return;
4140         }
4141
4142         if (priv->status & STATUS_SCANNING) {
4143                 /* Stop scan to keep fw from getting
4144                  * stuck (only if we aren't roaming --
4145                  * otherwise we'll never scan more than 2 or 3
4146                  * channels..) */
4147                 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF | IPW_DL_STATE,
4148                           "Aborting scan with missed beacon.\n");
4149                 queue_work(priv->workqueue, &priv->abort_scan);
4150         }
4151
4152         IPW_DEBUG_NOTIF("Missed beacon: %d\n", missed_count);
4153
4154 }
4155
4156 /**
4157  * Handle host notification packet.
4158  * Called from interrupt routine
4159  */
4160 static inline void ipw_rx_notification(struct ipw_priv *priv,
4161                                        struct ipw_rx_notification *notif)
4162 {
4163         notif->size = le16_to_cpu(notif->size);
4164
4165         IPW_DEBUG_NOTIF("type = %i (%d bytes)\n", notif->subtype, notif->size);
4166
4167         switch (notif->subtype) {
4168         case HOST_NOTIFICATION_STATUS_ASSOCIATED:{
4169                         struct notif_association *assoc = &notif->u.assoc;
4170
4171                         switch (assoc->state) {
4172                         case CMAS_ASSOCIATED:{
4173                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4174                                                   IPW_DL_ASSOC,
4175                                                   "associated: '%s' " MAC_FMT
4176                                                   " \n",
4177                                                   escape_essid(priv->essid,
4178                                                                priv->essid_len),
4179                                                   MAC_ARG(priv->bssid));
4180
4181                                         switch (priv->ieee->iw_mode) {
4182                                         case IW_MODE_INFRA:
4183                                                 memcpy(priv->ieee->bssid,
4184                                                        priv->bssid, ETH_ALEN);
4185                                                 break;
4186
4187                                         case IW_MODE_ADHOC:
4188                                                 memcpy(priv->ieee->bssid,
4189                                                        priv->bssid, ETH_ALEN);
4190
4191                                                 /* clear out the station table */
4192                                                 priv->num_stations = 0;
4193
4194                                                 IPW_DEBUG_ASSOC
4195                                                     ("queueing adhoc check\n");
4196                                                 queue_delayed_work(priv->
4197                                                                    workqueue,
4198                                                                    &priv->
4199                                                                    adhoc_check,
4200                                                                    priv->
4201                                                                    assoc_request.
4202                                                                    beacon_interval);
4203                                                 break;
4204                                         }
4205
4206                                         priv->status &= ~STATUS_ASSOCIATING;
4207                                         priv->status |= STATUS_ASSOCIATED;
4208                                         queue_work(priv->workqueue,
4209                                                    &priv->system_config);
4210
4211 #ifdef CONFIG_IPW_QOS
4212 #define IPW_GET_PACKET_STYPE(x) WLAN_FC_GET_STYPE( \
4213                          le16_to_cpu(((struct ieee80211_hdr *)(x))->frame_ctl))
4214                                         if ((priv->status & STATUS_AUTH) &&
4215                                             (IPW_GET_PACKET_STYPE(&notif->u.raw)
4216                                              == IEEE80211_STYPE_ASSOC_RESP)) {
4217                                                 if ((sizeof
4218                                                      (struct
4219                                                       ieee80211_assoc_response)
4220                                                      <= notif->size)
4221                                                     && (notif->size <= 2314)) {
4222                                                         struct
4223                                                         ieee80211_rx_stats
4224                                                             stats = {
4225                                                                 .len =
4226                                                                     notif->
4227                                                                     size - 1,
4228                                                         };
4229
4230                                                         IPW_DEBUG_QOS
4231                                                             ("QoS Associate "
4232                                                              "size %d\n",
4233                                                              notif->size);
4234                                                         ieee80211_rx_mgt(priv->
4235                                                                          ieee,
4236                                                                          (struct
4237                                                                           ieee80211_hdr_4addr
4238                                                                           *)
4239                                                                          &notif->u.raw, &stats);
4240                                                 }
4241                                         }
4242 #endif
4243
4244                                         schedule_work(&priv->link_up);
4245
4246                                         break;
4247                                 }
4248
4249                         case CMAS_AUTHENTICATED:{
4250                                         if (priv->
4251                                             status & (STATUS_ASSOCIATED |
4252                                                       STATUS_AUTH)) {
4253 #ifdef CONFIG_IPW2200_DEBUG
4254                                                 struct notif_authenticate *auth
4255                                                     = &notif->u.auth;
4256                                                 IPW_DEBUG(IPW_DL_NOTIF |
4257                                                           IPW_DL_STATE |
4258                                                           IPW_DL_ASSOC,
4259                                                           "deauthenticated: '%s' "
4260                                                           MAC_FMT
4261                                                           ": (0x%04X) - %s \n",
4262                                                           escape_essid(priv->
4263                                                                        essid,
4264                                                                        priv->
4265                                                                        essid_len),
4266                                                           MAC_ARG(priv->bssid),
4267                                                           ntohs(auth->status),
4268                                                           ipw_get_status_code
4269                                                           (ntohs
4270                                                            (auth->status)));
4271 #endif
4272
4273                                                 priv->status &=
4274                                                     ~(STATUS_ASSOCIATING |
4275                                                       STATUS_AUTH |
4276                                                       STATUS_ASSOCIATED);
4277
4278                                                 schedule_work(&priv->link_down);
4279                                                 break;
4280                                         }
4281
4282                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4283                                                   IPW_DL_ASSOC,
4284                                                   "authenticated: '%s' " MAC_FMT
4285                                                   "\n",
4286                                                   escape_essid(priv->essid,
4287                                                                priv->essid_len),
4288                                                   MAC_ARG(priv->bssid));
4289                                         break;
4290                                 }
4291
4292                         case CMAS_INIT:{
4293                                         if (priv->status & STATUS_AUTH) {
4294                                                 struct
4295                                                     ieee80211_assoc_response
4296                                                 *resp;
4297                                                 resp =
4298                                                     (struct
4299                                                      ieee80211_assoc_response
4300                                                      *)&notif->u.raw;
4301                                                 IPW_DEBUG(IPW_DL_NOTIF |
4302                                                           IPW_DL_STATE |
4303                                                           IPW_DL_ASSOC,
4304                                                           "association failed (0x%04X): %s\n",
4305                                                           ntohs(resp->status),
4306                                                           ipw_get_status_code
4307                                                           (ntohs
4308                                                            (resp->status)));
4309                                         }
4310
4311                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4312                                                   IPW_DL_ASSOC,
4313                                                   "disassociated: '%s' " MAC_FMT
4314                                                   " \n",
4315                                                   escape_essid(priv->essid,
4316                                                                priv->essid_len),
4317                                                   MAC_ARG(priv->bssid));
4318
4319                                         priv->status &=
4320                                             ~(STATUS_DISASSOCIATING |
4321                                               STATUS_ASSOCIATING |
4322                                               STATUS_ASSOCIATED | STATUS_AUTH);
4323                                         if (priv->assoc_network
4324                                             && (priv->assoc_network->
4325                                                 capability &
4326                                                 WLAN_CAPABILITY_IBSS))
4327                                                 ipw_remove_current_network
4328                                                     (priv);
4329
4330                                         schedule_work(&priv->link_down);
4331
4332                                         break;
4333                                 }
4334
4335                         case CMAS_RX_ASSOC_RESP:
4336                                 break;
4337
4338                         default:
4339                                 IPW_ERROR("assoc: unknown (%d)\n",
4340                                           assoc->state);
4341                                 break;
4342                         }
4343
4344                         break;
4345                 }
4346
4347         case HOST_NOTIFICATION_STATUS_AUTHENTICATE:{
4348                         struct notif_authenticate *auth = &notif->u.auth;
4349                         switch (auth->state) {
4350                         case CMAS_AUTHENTICATED:
4351                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4352                                           "authenticated: '%s' " MAC_FMT " \n",
4353                                           escape_essid(priv->essid,
4354                                                        priv->essid_len),
4355                                           MAC_ARG(priv->bssid));
4356                                 priv->status |= STATUS_AUTH;
4357                                 break;
4358
4359                         case CMAS_INIT:
4360                                 if (priv->status & STATUS_AUTH) {
4361                                         IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4362                                                   IPW_DL_ASSOC,
4363                                                   "authentication failed (0x%04X): %s\n",
4364                                                   ntohs(auth->status),
4365                                                   ipw_get_status_code(ntohs
4366                                                                       (auth->
4367                                                                        status)));
4368                                 }
4369                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4370                                           IPW_DL_ASSOC,
4371                                           "deauthenticated: '%s' " MAC_FMT "\n",
4372                                           escape_essid(priv->essid,
4373                                                        priv->essid_len),
4374                                           MAC_ARG(priv->bssid));
4375
4376                                 priv->status &= ~(STATUS_ASSOCIATING |
4377                                                   STATUS_AUTH |
4378                                                   STATUS_ASSOCIATED);
4379
4380                                 schedule_work(&priv->link_down);
4381                                 break;
4382
4383                         case CMAS_TX_AUTH_SEQ_1:
4384                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4385                                           IPW_DL_ASSOC, "AUTH_SEQ_1\n");
4386                                 break;
4387                         case CMAS_RX_AUTH_SEQ_2:
4388                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4389                                           IPW_DL_ASSOC, "AUTH_SEQ_2\n");
4390                                 break;
4391                         case CMAS_AUTH_SEQ_1_PASS:
4392                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4393                                           IPW_DL_ASSOC, "AUTH_SEQ_1_PASS\n");
4394                                 break;
4395                         case CMAS_AUTH_SEQ_1_FAIL:
4396                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4397                                           IPW_DL_ASSOC, "AUTH_SEQ_1_FAIL\n");
4398                                 break;
4399                         case CMAS_TX_AUTH_SEQ_3:
4400                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4401                                           IPW_DL_ASSOC, "AUTH_SEQ_3\n");
4402                                 break;
4403                         case CMAS_RX_AUTH_SEQ_4:
4404                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4405                                           IPW_DL_ASSOC, "RX_AUTH_SEQ_4\n");
4406                                 break;
4407                         case CMAS_AUTH_SEQ_2_PASS:
4408                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4409                                           IPW_DL_ASSOC, "AUTH_SEQ_2_PASS\n");
4410                                 break;
4411                         case CMAS_AUTH_SEQ_2_FAIL:
4412                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4413                                           IPW_DL_ASSOC, "AUT_SEQ_2_FAIL\n");
4414                                 break;
4415                         case CMAS_TX_ASSOC:
4416                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4417                                           IPW_DL_ASSOC, "TX_ASSOC\n");
4418                                 break;
4419                         case CMAS_RX_ASSOC_RESP:
4420                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4421                                           IPW_DL_ASSOC, "RX_ASSOC_RESP\n");
4422
4423                                 break;
4424                         case CMAS_ASSOCIATED:
4425                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE |
4426                                           IPW_DL_ASSOC, "ASSOCIATED\n");
4427                                 break;
4428                         default:
4429                                 IPW_DEBUG_NOTIF("auth: failure - %d\n",
4430                                                 auth->state);
4431                                 break;
4432                         }
4433                         break;
4434                 }
4435
4436         case HOST_NOTIFICATION_STATUS_SCAN_CHANNEL_RESULT:{
4437                         struct notif_channel_result *x =
4438                             &notif->u.channel_result;
4439
4440                         if (notif->size == sizeof(*x)) {
4441                                 IPW_DEBUG_SCAN("Scan result for channel %d\n",
4442                                                x->channel_num);
4443                         } else {
4444                                 IPW_DEBUG_SCAN("Scan result of wrong size %d "
4445                                                "(should be %zd)\n",
4446                                                notif->size, sizeof(*x));
4447                         }
4448                         break;
4449                 }
4450
4451         case HOST_NOTIFICATION_STATUS_SCAN_COMPLETED:{
4452                         struct notif_scan_complete *x = &notif->u.scan_complete;
4453                         if (notif->size == sizeof(*x)) {
4454                                 IPW_DEBUG_SCAN
4455                                     ("Scan completed: type %d, %d channels, "
4456                                      "%d status\n", x->scan_type,
4457                                      x->num_channels, x->status);
4458                         } else {
4459                                 IPW_ERROR("Scan completed of wrong size %d "
4460                                           "(should be %zd)\n",
4461                                           notif->size, sizeof(*x));
4462                         }
4463
4464                         priv->status &=
4465                             ~(STATUS_SCANNING | STATUS_SCAN_ABORTING);
4466
4467                         wake_up_interruptible(&priv->wait_state);
4468                         cancel_delayed_work(&priv->scan_check);
4469
4470                         if (priv->status & STATUS_EXIT_PENDING)
4471                                 break;
4472
4473                         priv->ieee->scans++;
4474
4475 #ifdef CONFIG_IPW2200_MONITOR
4476                         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
4477                                 priv->status |= STATUS_SCAN_FORCED;
4478                                 queue_work(priv->workqueue,
4479                                            &priv->request_scan);
4480                                 break;
4481                         }
4482                         priv->status &= ~STATUS_SCAN_FORCED;
4483 #endif                          /* CONFIG_IPW2200_MONITOR */
4484
4485                         if (!(priv->status & (STATUS_ASSOCIATED |
4486                                               STATUS_ASSOCIATING |
4487                                               STATUS_ROAMING |
4488                                               STATUS_DISASSOCIATING)))
4489                                 queue_work(priv->workqueue, &priv->associate);
4490                         else if (priv->status & STATUS_ROAMING) {
4491                                 if (x->status == SCAN_COMPLETED_STATUS_COMPLETE)
4492                                         /* If a scan completed and we are in roam mode, then
4493                                          * the scan that completed was the one requested as a
4494                                          * result of entering roam... so, schedule the
4495                                          * roam work */
4496                                         queue_work(priv->workqueue,
4497                                                    &priv->roam);
4498                                 else
4499                                         /* Don't schedule if we aborted the scan */
4500                                         priv->status &= ~STATUS_ROAMING;
4501                         } else if (priv->status & STATUS_SCAN_PENDING)
4502                                 queue_work(priv->workqueue,
4503                                            &priv->request_scan);
4504                         else if (priv->config & CFG_BACKGROUND_SCAN
4505                                  && priv->status & STATUS_ASSOCIATED)
4506                                 queue_delayed_work(priv->workqueue,
4507                                                    &priv->request_scan, HZ);
4508                         break;
4509                 }
4510
4511         case HOST_NOTIFICATION_STATUS_FRAG_LENGTH:{
4512                         struct notif_frag_length *x = &notif->u.frag_len;
4513
4514                         if (notif->size == sizeof(*x))
4515                                 IPW_ERROR("Frag length: %d\n",
4516                                           le16_to_cpu(x->frag_length));
4517                         else
4518                                 IPW_ERROR("Frag length of wrong size %d "
4519                                           "(should be %zd)\n",
4520                                           notif->size, sizeof(*x));
4521                         break;
4522                 }
4523
4524         case HOST_NOTIFICATION_STATUS_LINK_DETERIORATION:{
4525                         struct notif_link_deterioration *x =
4526                             &notif->u.link_deterioration;
4527
4528                         if (notif->size == sizeof(*x)) {
4529                                 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE,
4530                                           "link deterioration: '%s' " MAC_FMT
4531                                           " \n", escape_essid(priv->essid,
4532                                                               priv->essid_len),
4533                                           MAC_ARG(priv->bssid));
4534                                 memcpy(&priv->last_link_deterioration, x,
4535                                        sizeof(*x));
4536                         } else {
4537                                 IPW_ERROR("Link Deterioration of wrong size %d "
4538                                           "(should be %zd)\n",
4539                                           notif->size, sizeof(*x));
4540                         }
4541                         break;
4542                 }
4543
4544         case HOST_NOTIFICATION_DINO_CONFIG_RESPONSE:{
4545                         IPW_ERROR("Dino config\n");
4546                         if (priv->hcmd
4547                             && priv->hcmd->cmd != HOST_CMD_DINO_CONFIG)
4548                                 IPW_ERROR("Unexpected DINO_CONFIG_RESPONSE\n");
4549
4550                         break;
4551                 }
4552
4553         case HOST_NOTIFICATION_STATUS_BEACON_STATE:{
4554                         struct notif_beacon_state *x = &notif->u.beacon_state;
4555                         if (notif->size != sizeof(*x)) {
4556                                 IPW_ERROR
4557                                     ("Beacon state of wrong size %d (should "
4558                                      "be %zd)\n", notif->size, sizeof(*x));
4559                                 break;
4560                         }
4561
4562                         if (le32_to_cpu(x->state) ==
4563                             HOST_NOTIFICATION_STATUS_BEACON_MISSING)
4564                                 ipw_handle_missed_beacon(priv,
4565                                                          le32_to_cpu(x->
4566                                                                      number));
4567
4568                         break;
4569                 }
4570
4571         case HOST_NOTIFICATION_STATUS_TGI_TX_KEY:{
4572                         struct notif_tgi_tx_key *x = &notif->u.tgi_tx_key;
4573                         if (notif->size == sizeof(*x)) {
4574                                 IPW_ERROR("TGi Tx Key: state 0x%02x sec type "
4575                                           "0x%02x station %d\n",
4576                                           x->key_state, x->security_type,
4577                                           x->station_index);
4578                                 break;
4579                         }
4580
4581                         IPW_ERROR
4582                             ("TGi Tx Key of wrong size %d (should be %zd)\n",
4583                              notif->size, sizeof(*x));
4584                         break;
4585                 }
4586
4587         case HOST_NOTIFICATION_CALIB_KEEP_RESULTS:{
4588                         struct notif_calibration *x = &notif->u.calibration;
4589
4590                         if (notif->size == sizeof(*x)) {
4591                                 memcpy(&priv->calib, x, sizeof(*x));
4592                                 IPW_DEBUG_INFO("TODO: Calibration\n");
4593                                 break;
4594                         }
4595
4596                         IPW_ERROR
4597                             ("Calibration of wrong size %d (should be %zd)\n",
4598                              notif->size, sizeof(*x));
4599                         break;
4600                 }
4601
4602         case HOST_NOTIFICATION_NOISE_STATS:{
4603                         if (notif->size == sizeof(u32)) {
4604                                 priv->last_noise =
4605                                     (u8) (le32_to_cpu(notif->u.noise.value) &
4606                                           0xff);
4607                                 average_add(&priv->average_noise,
4608                                             priv->last_noise);
4609                                 break;
4610                         }
4611
4612                         IPW_ERROR
4613                             ("Noise stat is wrong size %d (should be %zd)\n",
4614                              notif->size, sizeof(u32));
4615                         break;
4616                 }
4617
4618         default:
4619                 IPW_ERROR("Unknown notification: "
4620                           "subtype=%d,flags=0x%2x,size=%d\n",
4621                           notif->subtype, notif->flags, notif->size);
4622         }
4623 }
4624
4625 /**
4626  * Destroys all DMA structures and initialise them again
4627  *
4628  * @param priv
4629  * @return error code
4630  */
4631 static int ipw_queue_reset(struct ipw_priv *priv)
4632 {
4633         int rc = 0;
4634         /** @todo customize queue sizes */
4635         int nTx = 64, nTxCmd = 8;
4636         ipw_tx_queue_free(priv);
4637         /* Tx CMD queue */
4638         rc = ipw_queue_tx_init(priv, &priv->txq_cmd, nTxCmd,
4639                                IPW_TX_CMD_QUEUE_READ_INDEX,
4640                                IPW_TX_CMD_QUEUE_WRITE_INDEX,
4641                                IPW_TX_CMD_QUEUE_BD_BASE,
4642                                IPW_TX_CMD_QUEUE_BD_SIZE);
4643         if (rc) {
4644                 IPW_ERROR("Tx Cmd queue init failed\n");
4645                 goto error;
4646         }
4647         /* Tx queue(s) */
4648         rc = ipw_queue_tx_init(priv, &priv->txq[0], nTx,
4649                                IPW_TX_QUEUE_0_READ_INDEX,
4650                                IPW_TX_QUEUE_0_WRITE_INDEX,
4651                                IPW_TX_QUEUE_0_BD_BASE, IPW_TX_QUEUE_0_BD_SIZE);
4652         if (rc) {
4653                 IPW_ERROR("Tx 0 queue init failed\n");
4654                 goto error;
4655         }
4656         rc = ipw_queue_tx_init(priv, &priv->txq[1], nTx,
4657                                IPW_TX_QUEUE_1_READ_INDEX,
4658                                IPW_TX_QUEUE_1_WRITE_INDEX,
4659                                IPW_TX_QUEUE_1_BD_BASE, IPW_TX_QUEUE_1_BD_SIZE);
4660         if (rc) {
4661                 IPW_ERROR("Tx 1 queue init failed\n");
4662                 goto error;
4663         }
4664         rc = ipw_queue_tx_init(priv, &priv->txq[2], nTx,
4665                                IPW_TX_QUEUE_2_READ_INDEX,
4666                                IPW_TX_QUEUE_2_WRITE_INDEX,
4667                                IPW_TX_QUEUE_2_BD_BASE, IPW_TX_QUEUE_2_BD_SIZE);
4668         if (rc) {
4669                 IPW_ERROR("Tx 2 queue init failed\n");
4670                 goto error;
4671         }
4672         rc = ipw_queue_tx_init(priv, &priv->txq[3], nTx,
4673                                IPW_TX_QUEUE_3_READ_INDEX,
4674                                IPW_TX_QUEUE_3_WRITE_INDEX,
4675                                IPW_TX_QUEUE_3_BD_BASE, IPW_TX_QUEUE_3_BD_SIZE);
4676         if (rc) {
4677                 IPW_ERROR("Tx 3 queue init failed\n");
4678                 goto error;
4679         }
4680         /* statistics */
4681         priv->rx_bufs_min = 0;
4682         priv->rx_pend_max = 0;
4683         return rc;
4684
4685       error:
4686         ipw_tx_queue_free(priv);
4687         return rc;
4688 }
4689
4690 /**
4691  * Reclaim Tx queue entries no more used by NIC.
4692  *
4693  * When FW adwances 'R' index, all entries between old and
4694  * new 'R' index need to be reclaimed. As result, some free space
4695  * forms. If there is enough free space (> low mark), wake Tx queue.
4696  *
4697  * @note Need to protect against garbage in 'R' index
4698  * @param priv
4699  * @param txq
4700  * @param qindex
4701  * @return Number of used entries remains in the queue
4702  */
4703 static int ipw_queue_tx_reclaim(struct ipw_priv *priv,
4704                                 struct clx2_tx_queue *txq, int qindex)
4705 {
4706         u32 hw_tail;
4707         int used;
4708         struct clx2_queue *q = &txq->q;
4709
4710         hw_tail = ipw_read32(priv, q->reg_r);
4711         if (hw_tail >= q->n_bd) {
4712                 IPW_ERROR
4713                     ("Read index for DMA queue (%d) is out of range [0-%d)\n",
4714                      hw_tail, q->n_bd);
4715                 goto done;
4716         }
4717         for (; q->last_used != hw_tail;
4718              q->last_used = ipw_queue_inc_wrap(q->last_used, q->n_bd)) {
4719                 ipw_queue_tx_free_tfd(priv, txq);
4720                 priv->tx_packets++;
4721         }
4722       done:
4723         if ((ipw_queue_space(q) > q->low_mark) &&
4724             (qindex >= 0) &&
4725             (priv->status & STATUS_ASSOCIATED) && netif_running(priv->net_dev))
4726                 netif_wake_queue(priv->net_dev);
4727         used = q->first_empty - q->last_used;
4728         if (used < 0)
4729                 used += q->n_bd;
4730
4731         return used;
4732 }
4733
4734 static int ipw_queue_tx_hcmd(struct ipw_priv *priv, int hcmd, void *buf,
4735                              int len, int sync)
4736 {
4737         struct clx2_tx_queue *txq = &priv->txq_cmd;
4738         struct clx2_queue *q = &txq->q;
4739         struct tfd_frame *tfd;
4740
4741         if (ipw_queue_space(q) < (sync ? 1 : 2)) {
4742                 IPW_ERROR("No space for Tx\n");
4743                 return -EBUSY;
4744         }
4745
4746         tfd = &txq->bd[q->first_empty];
4747         txq->txb[q->first_empty] = NULL;
4748
4749         memset(tfd, 0, sizeof(*tfd));
4750         tfd->control_flags.message_type = TX_HOST_COMMAND_TYPE;
4751         tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
4752         priv->hcmd_seq++;
4753         tfd->u.cmd.index = hcmd;
4754         tfd->u.cmd.length = len;
4755         memcpy(tfd->u.cmd.payload, buf, len);
4756         q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
4757         ipw_write32(priv, q->reg_w, q->first_empty);
4758         _ipw_read32(priv, 0x90);
4759
4760         return 0;
4761 }
4762
4763 /*
4764  * Rx theory of operation
4765  *
4766  * The host allocates 32 DMA target addresses and passes the host address
4767  * to the firmware at register IPW_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
4768  * 0 to 31
4769  *
4770  * Rx Queue Indexes
4771  * The host/firmware share two index registers for managing the Rx buffers.
4772  *
4773  * The READ index maps to the first position that the firmware may be writing
4774  * to -- the driver can read up to (but not including) this position and get
4775  * good data.
4776  * The READ index is managed by the firmware once the card is enabled.
4777  *
4778  * The WRITE index maps to the last position the driver has read from -- the
4779  * position preceding WRITE is the last slot the firmware can place a packet.
4780  *
4781  * The queue is empty (no good data) if WRITE = READ - 1, and is full if
4782  * WRITE = READ.
4783  *
4784  * During initialization the host sets up the READ queue position to the first
4785  * INDEX position, and WRITE to the last (READ - 1 wrapped)
4786  *
4787  * When the firmware places a packet in a buffer it will advance the READ index
4788  * and fire the RX interrupt.  The driver can then query the READ index and
4789  * process as many packets as possible, moving the WRITE index forward as it
4790  * resets the Rx queue buffers with new memory.
4791  *
4792  * The management in the driver is as follows:
4793  * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free.  When
4794  *   ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
4795  *   to replensish the ipw->rxq->rx_free.
4796  * + In ipw_rx_queue_replenish (scheduled) if 'processed' != 'read' then the
4797  *   ipw->rxq is replenished and the READ INDEX is updated (updating the
4798  *   'processed' and 'read' driver indexes as well)
4799  * + A received packet is processed and handed to the kernel network stack,
4800  *   detached from the ipw->rxq.  The driver 'processed' index is updated.
4801  * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free
4802  *   list. If there are no allocated buffers in ipw->rxq->rx_free, the READ
4803  *   INDEX is not incremented and ipw->status(RX_STALLED) is set.  If there
4804  *   were enough free buffers and RX_STALLED is set it is cleared.
4805  *
4806  *
4807  * Driver sequence:
4808  *
4809  * ipw_rx_queue_alloc()       Allocates rx_free
4810  * ipw_rx_queue_replenish()   Replenishes rx_free list from rx_used, and calls
4811  *                            ipw_rx_queue_restock
4812  * ipw_rx_queue_restock()     Moves available buffers from rx_free into Rx
4813  *                            queue, updates firmware pointers, and updates
4814  *                            the WRITE index.  If insufficient rx_free buffers
4815  *                            are available, schedules ipw_rx_queue_replenish
4816  *
4817  * -- enable interrupts --
4818  * ISR - ipw_rx()             Detach ipw_rx_mem_buffers from pool up to the
4819  *                            READ INDEX, detaching the SKB from the pool.
4820  *                            Moves the packet buffer from queue to rx_used.
4821  *                            Calls ipw_rx_queue_restock to refill any empty
4822  *                            slots.
4823  * ...
4824  *
4825  */
4826
4827 /*
4828  * If there are slots in the RX queue that  need to be restocked,
4829  * and we have free pre-allocated buffers, fill the ranks as much
4830  * as we can pulling from rx_free.
4831  *
4832  * This moves the 'write' index forward to catch up with 'processed', and
4833  * also updates the memory address in the firmware to reference the new
4834  * target buffer.
4835  */
4836 static void ipw_rx_queue_restock(struct ipw_priv *priv)
4837 {
4838         struct ipw_rx_queue *rxq = priv->rxq;
4839         struct list_head *element;
4840         struct ipw_rx_mem_buffer *rxb;
4841         unsigned long flags;
4842         int write;
4843
4844         spin_lock_irqsave(&rxq->lock, flags);
4845         write = rxq->write;
4846         while ((rxq->write != rxq->processed) && (rxq->free_count)) {
4847                 element = rxq->rx_free.next;
4848                 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
4849                 list_del(element);
4850
4851                 ipw_write32(priv, IPW_RFDS_TABLE_LOWER + rxq->write * RFD_SIZE,
4852                             rxb->dma_addr);
4853                 rxq->queue[rxq->write] = rxb;
4854                 rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE;
4855                 rxq->free_count--;
4856         }
4857         spin_unlock_irqrestore(&rxq->lock, flags);
4858
4859         /* If the pre-allocated buffer pool is dropping low, schedule to
4860          * refill it */
4861         if (rxq->free_count <= RX_LOW_WATERMARK)
4862                 queue_work(priv->workqueue, &priv->rx_replenish);
4863
4864         /* If we've added more space for the firmware to place data, tell it */
4865         if (write != rxq->write)
4866                 ipw_write32(priv, IPW_RX_WRITE_INDEX, rxq->write);
4867 }
4868
4869 /*
4870  * Move all used packet from rx_used to rx_free, allocating a new SKB for each.
4871  * Also restock the Rx queue via ipw_rx_queue_restock.
4872  *
4873  * This is called as a scheduled work item (except for during intialization)
4874  */
4875 static void ipw_rx_queue_replenish(void *data)
4876 {
4877         struct ipw_priv *priv = data;
4878         struct ipw_rx_queue *rxq = priv->rxq;
4879         struct list_head *element;
4880         struct ipw_rx_mem_buffer *rxb;
4881         unsigned long flags;
4882
4883         spin_lock_irqsave(&rxq->lock, flags);
4884         while (!list_empty(&rxq->rx_used)) {
4885                 element = rxq->rx_used.next;
4886                 rxb = list_entry(element, struct ipw_rx_mem_buffer, list);
4887                 rxb->skb = alloc_skb(IPW_RX_BUF_SIZE, GFP_ATOMIC);
4888                 if (!rxb->skb) {
4889                         printk(KERN_CRIT "%s: Can not allocate SKB buffers.\n",
4890                                priv->net_dev->name);
4891                         /* We don't reschedule replenish work here -- we will
4892                          * call the restock method and if it still needs
4893                          * more buffers it will schedule replenish */
4894                         break;
4895                 }
4896                 list_del(element);
4897
4898                 rxb->rxb = (struct ipw_rx_buffer *)rxb->skb->data;
4899                 rxb->dma_addr =
4900                     pci_map_single(priv->pci_dev, rxb->skb->data,
4901                                    IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
4902
4903                 list_add_tail(&rxb->list, &rxq->rx_free);
4904                 rxq->free_count++;
4905         }
4906         spin_unlock_irqrestore(&rxq->lock, flags);
4907
4908         ipw_rx_queue_restock(priv);
4909 }
4910
4911 static void ipw_bg_rx_queue_replenish(void *data)
4912 {
4913         struct ipw_priv *priv = data;
4914         down(&priv->sem);
4915         ipw_rx_queue_replenish(data);
4916         up(&priv->sem);
4917 }
4918
4919 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
4920  * If an SKB has been detached, the POOL needs to have it's SKB set to NULL
4921  * This free routine walks the list of POOL entries and if SKB is set to
4922  * non NULL it is unmapped and freed
4923  */
4924 static void ipw_rx_queue_free(struct ipw_priv *priv, struct ipw_rx_queue *rxq)
4925 {
4926         int i;
4927
4928         if (!rxq)
4929                 return;
4930
4931         for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
4932                 if (rxq->pool[i].skb != NULL) {
4933                         pci_unmap_single(priv->pci_dev, rxq->pool[i].dma_addr,
4934                                          IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
4935                         dev_kfree_skb(rxq->pool[i].skb);
4936                 }
4937         }
4938
4939         kfree(rxq);
4940 }
4941
4942 static struct ipw_rx_queue *ipw_rx_queue_alloc(struct ipw_priv *priv)
4943 {
4944         struct ipw_rx_queue *rxq;
4945         int i;
4946
4947         rxq = kzalloc(sizeof(*rxq), GFP_KERNEL);
4948         if (unlikely(!rxq)) {
4949                 IPW_ERROR("memory allocation failed\n");
4950                 return NULL;
4951         }
4952         spin_lock_init(&rxq->lock);
4953         INIT_LIST_HEAD(&rxq->rx_free);
4954         INIT_LIST_HEAD(&rxq->rx_used);
4955
4956         /* Fill the rx_used queue with _all_ of the Rx buffers */
4957         for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
4958                 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
4959
4960         /* Set us so that we have processed and used all buffers, but have
4961          * not restocked the Rx queue with fresh buffers */
4962         rxq->read = rxq->write = 0;
4963         rxq->processed = RX_QUEUE_SIZE - 1;
4964         rxq->free_count = 0;
4965
4966         return rxq;
4967 }
4968
4969 static int ipw_is_rate_in_mask(struct ipw_priv *priv, int ieee_mode, u8 rate)
4970 {
4971         rate &= ~IEEE80211_BASIC_RATE_MASK;
4972         if (ieee_mode == IEEE_A) {
4973                 switch (rate) {
4974                 case IEEE80211_OFDM_RATE_6MB:
4975                         return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ?
4976                             1 : 0;
4977                 case IEEE80211_OFDM_RATE_9MB:
4978                         return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ?
4979                             1 : 0;
4980                 case IEEE80211_OFDM_RATE_12MB:
4981                         return priv->
4982                             rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? 1 : 0;
4983                 case IEEE80211_OFDM_RATE_18MB:
4984                         return priv->
4985                             rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? 1 : 0;
4986                 case IEEE80211_OFDM_RATE_24MB:
4987                         return priv->
4988                             rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? 1 : 0;
4989                 case IEEE80211_OFDM_RATE_36MB:
4990                         return priv->
4991                             rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? 1 : 0;
4992                 case IEEE80211_OFDM_RATE_48MB:
4993                         return priv->
4994                             rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? 1 : 0;
4995                 case IEEE80211_OFDM_RATE_54MB:
4996                         return priv->
4997                             rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? 1 : 0;
4998                 default:
4999                         return 0;
5000                 }
5001         }
5002
5003         /* B and G mixed */
5004         switch (rate) {
5005         case IEEE80211_CCK_RATE_1MB:
5006                 return priv->rates_mask & IEEE80211_CCK_RATE_1MB_MASK ? 1 : 0;
5007         case IEEE80211_CCK_RATE_2MB:
5008                 return priv->rates_mask & IEEE80211_CCK_RATE_2MB_MASK ? 1 : 0;
5009         case IEEE80211_CCK_RATE_5MB:
5010                 return priv->rates_mask & IEEE80211_CCK_RATE_5MB_MASK ? 1 : 0;
5011         case IEEE80211_CCK_RATE_11MB:
5012                 return priv->rates_mask & IEEE80211_CCK_RATE_11MB_MASK ? 1 : 0;
5013         }
5014
5015         /* If we are limited to B modulations, bail at this point */
5016         if (ieee_mode == IEEE_B)
5017                 return 0;
5018
5019         /* G */
5020         switch (rate) {
5021         case IEEE80211_OFDM_RATE_6MB:
5022                 return priv->rates_mask & IEEE80211_OFDM_RATE_6MB_MASK ? 1 : 0;
5023         case IEEE80211_OFDM_RATE_9MB:
5024                 return priv->rates_mask & IEEE80211_OFDM_RATE_9MB_MASK ? 1 : 0;
5025         case IEEE80211_OFDM_RATE_12MB:
5026                 return priv->rates_mask & IEEE80211_OFDM_RATE_12MB_MASK ? 1 : 0;
5027         case IEEE80211_OFDM_RATE_18MB:
5028                 return priv->rates_mask & IEEE80211_OFDM_RATE_18MB_MASK ? 1 : 0;
5029         case IEEE80211_OFDM_RATE_24MB:
5030                 return priv->rates_mask & IEEE80211_OFDM_RATE_24MB_MASK ? 1 : 0;
5031         case IEEE80211_OFDM_RATE_36MB:
5032                 return priv->rates_mask & IEEE80211_OFDM_RATE_36MB_MASK ? 1 : 0;
5033         case IEEE80211_OFDM_RATE_48MB:
5034                 return priv->rates_mask & IEEE80211_OFDM_RATE_48MB_MASK ? 1 : 0;
5035         case IEEE80211_OFDM_RATE_54MB:
5036                 return priv->rates_mask & IEEE80211_OFDM_RATE_54MB_MASK ? 1 : 0;
5037         }
5038
5039         return 0;
5040 }
5041
5042 static int ipw_compatible_rates(struct ipw_priv *priv,
5043                                 const struct ieee80211_network *network,
5044                                 struct ipw_supported_rates *rates)
5045 {
5046         int num_rates, i;
5047
5048         memset(rates, 0, sizeof(*rates));
5049         num_rates = min(network->rates_len, (u8) IPW_MAX_RATES);
5050         rates->num_rates = 0;
5051         for (i = 0; i < num_rates; i++) {
5052                 if (!ipw_is_rate_in_mask(priv, network->mode,
5053                                          network->rates[i])) {
5054
5055                         if (network->rates[i] & IEEE80211_BASIC_RATE_MASK) {
5056                                 IPW_DEBUG_SCAN("Adding masked mandatory "
5057                                                "rate %02X\n",
5058                                                network->rates[i]);
5059                                 rates->supported_rates[rates->num_rates++] =
5060                                     network->rates[i];
5061                                 continue;
5062                         }
5063
5064                         IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5065                                        network->rates[i], priv->rates_mask);
5066                         continue;
5067                 }
5068
5069                 rates->supported_rates[rates->num_rates++] = network->rates[i];
5070         }
5071
5072         num_rates = min(network->rates_ex_len,
5073                         (u8) (IPW_MAX_RATES - num_rates));
5074         for (i = 0; i < num_rates; i++) {
5075                 if (!ipw_is_rate_in_mask(priv, network->mode,
5076                                          network->rates_ex[i])) {
5077                         if (network->rates_ex[i] & IEEE80211_BASIC_RATE_MASK) {
5078                                 IPW_DEBUG_SCAN("Adding masked mandatory "
5079                                                "rate %02X\n",
5080                                                network->rates_ex[i]);
5081                                 rates->supported_rates[rates->num_rates++] =
5082                                     network->rates[i];
5083                                 continue;
5084                         }
5085
5086                         IPW_DEBUG_SCAN("Rate %02X masked : 0x%08X\n",
5087                                        network->rates_ex[i], priv->rates_mask);
5088                         continue;
5089                 }
5090
5091                 rates->supported_rates[rates->num_rates++] =
5092                     network->rates_ex[i];
5093         }
5094
5095         return 1;
5096 }
5097
5098 static inline void ipw_copy_rates(struct ipw_supported_rates *dest,
5099                                   const struct ipw_supported_rates *src)
5100 {
5101         u8 i;
5102         for (i = 0; i < src->num_rates; i++)
5103                 dest->supported_rates[i] = src->supported_rates[i];
5104         dest->num_rates = src->num_rates;
5105 }
5106
5107 /* TODO: Look at sniffed packets in the air to determine if the basic rate
5108  * mask should ever be used -- right now all callers to add the scan rates are
5109  * set with the modulation = CCK, so BASIC_RATE_MASK is never set... */
5110 static void ipw_add_cck_scan_rates(struct ipw_supported_rates *rates,
5111                                    u8 modulation, u32 rate_mask)
5112 {
5113         u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
5114             IEEE80211_BASIC_RATE_MASK : 0;
5115
5116         if (rate_mask & IEEE80211_CCK_RATE_1MB_MASK)
5117                 rates->supported_rates[rates->num_rates++] =
5118                     IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
5119
5120         if (rate_mask & IEEE80211_CCK_RATE_2MB_MASK)
5121                 rates->supported_rates[rates->num_rates++] =
5122                     IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
5123
5124         if (rate_mask & IEEE80211_CCK_RATE_5MB_MASK)
5125                 rates->supported_rates[rates->num_rates++] = basic_mask |
5126                     IEEE80211_CCK_RATE_5MB;
5127
5128         if (rate_mask & IEEE80211_CCK_RATE_11MB_MASK)
5129                 rates->supported_rates[rates->num_rates++] = basic_mask |
5130                     IEEE80211_CCK_RATE_11MB;
5131 }
5132
5133 static void ipw_add_ofdm_scan_rates(struct ipw_supported_rates *rates,
5134                                     u8 modulation, u32 rate_mask)
5135 {
5136         u8 basic_mask = (IEEE80211_OFDM_MODULATION == modulation) ?
5137             IEEE80211_BASIC_RATE_MASK : 0;
5138
5139         if (rate_mask & IEEE80211_OFDM_RATE_6MB_MASK)
5140                 rates->supported_rates[rates->num_rates++] = basic_mask |
5141                     IEEE80211_OFDM_RATE_6MB;
5142
5143         if (rate_mask & IEEE80211_OFDM_RATE_9MB_MASK)
5144                 rates->supported_rates[rates->num_rates++] =
5145                     IEEE80211_OFDM_RATE_9MB;
5146
5147         if (rate_mask & IEEE80211_OFDM_RATE_12MB_MASK)
5148                 rates->supported_rates[rates->num_rates++] = basic_mask |
5149                     IEEE80211_OFDM_RATE_12MB;
5150
5151         if (rate_mask & IEEE80211_OFDM_RATE_18MB_MASK)
5152                 rates->supported_rates[rates->num_rates++] =
5153                     IEEE80211_OFDM_RATE_18MB;
5154
5155         if (rate_mask & IEEE80211_OFDM_RATE_24MB_MASK)
5156                 rates->supported_rates[rates->num_rates++] = basic_mask |
5157                     IEEE80211_OFDM_RATE_24MB;
5158
5159         if (rate_mask & IEEE80211_OFDM_RATE_36MB_MASK)
5160                 rates->supported_rates[rates->num_rates++] =
5161                     IEEE80211_OFDM_RATE_36MB;
5162
5163         if (rate_mask & IEEE80211_OFDM_RATE_48MB_MASK)
5164                 rates->supported_rates[rates->num_rates++] =
5165                     IEEE80211_OFDM_RATE_48MB;
5166
5167         if (rate_mask & IEEE80211_OFDM_RATE_54MB_MASK)
5168                 rates->supported_rates[rates->num_rates++] =
5169                     IEEE80211_OFDM_RATE_54MB;
5170 }
5171
5172 struct ipw_network_match {
5173         struct ieee80211_network *network;
5174         struct ipw_supported_rates rates;
5175 };
5176
5177 static int ipw_find_adhoc_network(struct ipw_priv *priv,
5178                                   struct ipw_network_match *match,
5179                                   struct ieee80211_network *network,
5180                                   int roaming)
5181 {
5182         struct ipw_supported_rates rates;
5183
5184         /* Verify that this network's capability is compatible with the
5185          * current mode (AdHoc or Infrastructure) */
5186         if ((priv->ieee->iw_mode == IW_MODE_ADHOC &&
5187              !(network->capability & WLAN_CAPABILITY_IBSS))) {
5188                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded due to "
5189                                 "capability mismatch.\n",
5190                                 escape_essid(network->ssid, network->ssid_len),
5191                                 MAC_ARG(network->bssid));
5192                 return 0;
5193         }
5194
5195         /* If we do not have an ESSID for this AP, we can not associate with
5196          * it */
5197         if (network->flags & NETWORK_EMPTY_ESSID) {
5198                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5199                                 "because of hidden ESSID.\n",
5200                                 escape_essid(network->ssid, network->ssid_len),
5201                                 MAC_ARG(network->bssid));
5202                 return 0;
5203         }
5204
5205         if (unlikely(roaming)) {
5206                 /* If we are roaming, then ensure check if this is a valid
5207                  * network to try and roam to */
5208                 if ((network->ssid_len != match->network->ssid_len) ||
5209                     memcmp(network->ssid, match->network->ssid,
5210                            network->ssid_len)) {
5211                         IPW_DEBUG_MERGE("Netowrk '%s (" MAC_FMT ")' excluded "
5212                                         "because of non-network ESSID.\n",
5213                                         escape_essid(network->ssid,
5214                                                      network->ssid_len),
5215                                         MAC_ARG(network->bssid));
5216                         return 0;
5217                 }
5218         } else {
5219                 /* If an ESSID has been configured then compare the broadcast
5220                  * ESSID to ours */
5221                 if ((priv->config & CFG_STATIC_ESSID) &&
5222                     ((network->ssid_len != priv->essid_len) ||
5223                      memcmp(network->ssid, priv->essid,
5224                             min(network->ssid_len, priv->essid_len)))) {
5225                         char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5226
5227                         strncpy(escaped,
5228                                 escape_essid(network->ssid, network->ssid_len),
5229                                 sizeof(escaped));
5230                         IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5231                                         "because of ESSID mismatch: '%s'.\n",
5232                                         escaped, MAC_ARG(network->bssid),
5233                                         escape_essid(priv->essid,
5234                                                      priv->essid_len));
5235                         return 0;
5236                 }
5237         }
5238
5239         /* If the old network rate is better than this one, don't bother
5240          * testing everything else. */
5241
5242         if (network->time_stamp[0] < match->network->time_stamp[0]) {
5243                 IPW_DEBUG_MERGE("Network '%s excluded because newer than "
5244                                 "current network.\n",
5245                                 escape_essid(match->network->ssid,
5246                                              match->network->ssid_len));
5247                 return 0;
5248         } else if (network->time_stamp[1] < match->network->time_stamp[1]) {
5249                 IPW_DEBUG_MERGE("Network '%s excluded because newer than "
5250                                 "current network.\n",
5251                                 escape_essid(match->network->ssid,
5252                                              match->network->ssid_len));
5253                 return 0;
5254         }
5255
5256         /* Now go through and see if the requested network is valid... */
5257         if (priv->ieee->scan_age != 0 &&
5258             time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5259                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5260                                 "because of age: %lums.\n",
5261                                 escape_essid(network->ssid, network->ssid_len),
5262                                 MAC_ARG(network->bssid),
5263                                 1000 * (jiffies - network->last_scanned) / HZ);
5264                 return 0;
5265         }
5266
5267         if ((priv->config & CFG_STATIC_CHANNEL) &&
5268             (network->channel != priv->channel)) {
5269                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5270                                 "because of channel mismatch: %d != %d.\n",
5271                                 escape_essid(network->ssid, network->ssid_len),
5272                                 MAC_ARG(network->bssid),
5273                                 network->channel, priv->channel);
5274                 return 0;
5275         }
5276
5277         /* Verify privacy compatability */
5278         if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5279             ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5280                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5281                                 "because of privacy mismatch: %s != %s.\n",
5282                                 escape_essid(network->ssid, network->ssid_len),
5283                                 MAC_ARG(network->bssid),
5284                                 priv->
5285                                 capability & CAP_PRIVACY_ON ? "on" : "off",
5286                                 network->
5287                                 capability & WLAN_CAPABILITY_PRIVACY ? "on" :
5288                                 "off");
5289                 return 0;
5290         }
5291
5292         if (!memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
5293                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5294                                 "because of the same BSSID match: " MAC_FMT
5295                                 ".\n", escape_essid(network->ssid,
5296                                                     network->ssid_len),
5297                                 MAC_ARG(network->bssid), MAC_ARG(priv->bssid));
5298                 return 0;
5299         }
5300
5301         /* Filter out any incompatible freq / mode combinations */
5302         if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) {
5303                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5304                                 "because of invalid frequency/mode "
5305                                 "combination.\n",
5306                                 escape_essid(network->ssid, network->ssid_len),
5307                                 MAC_ARG(network->bssid));
5308                 return 0;
5309         }
5310
5311         /* Ensure that the rates supported by the driver are compatible with
5312          * this AP, including verification of basic rates (mandatory) */
5313         if (!ipw_compatible_rates(priv, network, &rates)) {
5314                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5315                                 "because configured rate mask excludes "
5316                                 "AP mandatory rate.\n",
5317                                 escape_essid(network->ssid, network->ssid_len),
5318                                 MAC_ARG(network->bssid));
5319                 return 0;
5320         }
5321
5322         if (rates.num_rates == 0) {
5323                 IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' excluded "
5324                                 "because of no compatible rates.\n",
5325                                 escape_essid(network->ssid, network->ssid_len),
5326                                 MAC_ARG(network->bssid));
5327                 return 0;
5328         }
5329
5330         /* TODO: Perform any further minimal comparititive tests.  We do not
5331          * want to put too much policy logic here; intelligent scan selection
5332          * should occur within a generic IEEE 802.11 user space tool.  */
5333
5334         /* Set up 'new' AP to this network */
5335         ipw_copy_rates(&match->rates, &rates);
5336         match->network = network;
5337         IPW_DEBUG_MERGE("Network '%s (" MAC_FMT ")' is a viable match.\n",
5338                         escape_essid(network->ssid, network->ssid_len),
5339                         MAC_ARG(network->bssid));
5340
5341         return 1;
5342 }
5343
5344 static void ipw_merge_adhoc_network(void *data)
5345 {
5346         struct ipw_priv *priv = data;
5347         struct ieee80211_network *network = NULL;
5348         struct ipw_network_match match = {
5349                 .network = priv->assoc_network
5350         };
5351
5352         if ((priv->status & STATUS_ASSOCIATED) &&
5353             (priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5354                 /* First pass through ROAM process -- look for a better
5355                  * network */
5356                 unsigned long flags;
5357
5358                 spin_lock_irqsave(&priv->ieee->lock, flags);
5359                 list_for_each_entry(network, &priv->ieee->network_list, list) {
5360                         if (network != priv->assoc_network)
5361                                 ipw_find_adhoc_network(priv, &match, network,
5362                                                        1);
5363                 }
5364                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
5365
5366                 if (match.network == priv->assoc_network) {
5367                         IPW_DEBUG_MERGE("No better ADHOC in this network to "
5368                                         "merge to.\n");
5369                         return;
5370                 }
5371
5372                 down(&priv->sem);
5373                 if ((priv->ieee->iw_mode == IW_MODE_ADHOC)) {
5374                         IPW_DEBUG_MERGE("remove network %s\n",
5375                                         escape_essid(priv->essid,
5376                                                      priv->essid_len));
5377                         ipw_remove_current_network(priv);
5378                 }
5379
5380                 ipw_disassociate(priv);
5381                 priv->assoc_network = match.network;
5382                 up(&priv->sem);
5383                 return;
5384         }
5385 }
5386
5387 static int ipw_best_network(struct ipw_priv *priv,
5388                             struct ipw_network_match *match,
5389                             struct ieee80211_network *network, int roaming)
5390 {
5391         struct ipw_supported_rates rates;
5392
5393         /* Verify that this network's capability is compatible with the
5394          * current mode (AdHoc or Infrastructure) */
5395         if ((priv->ieee->iw_mode == IW_MODE_INFRA &&
5396              !(network->capability & WLAN_CAPABILITY_ESS)) ||
5397             (priv->ieee->iw_mode == IW_MODE_ADHOC &&
5398              !(network->capability & WLAN_CAPABILITY_IBSS))) {
5399                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded due to "
5400                                 "capability mismatch.\n",
5401                                 escape_essid(network->ssid, network->ssid_len),
5402                                 MAC_ARG(network->bssid));
5403                 return 0;
5404         }
5405
5406         /* If we do not have an ESSID for this AP, we can not associate with
5407          * it */
5408         if (network->flags & NETWORK_EMPTY_ESSID) {
5409                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5410                                 "because of hidden ESSID.\n",
5411                                 escape_essid(network->ssid, network->ssid_len),
5412                                 MAC_ARG(network->bssid));
5413                 return 0;
5414         }
5415
5416         if (unlikely(roaming)) {
5417                 /* If we are roaming, then ensure check if this is a valid
5418                  * network to try and roam to */
5419                 if ((network->ssid_len != match->network->ssid_len) ||
5420                     memcmp(network->ssid, match->network->ssid,
5421                            network->ssid_len)) {
5422                         IPW_DEBUG_ASSOC("Netowrk '%s (" MAC_FMT ")' excluded "
5423                                         "because of non-network ESSID.\n",
5424                                         escape_essid(network->ssid,
5425                                                      network->ssid_len),
5426                                         MAC_ARG(network->bssid));
5427                         return 0;
5428                 }
5429         } else {
5430                 /* If an ESSID has been configured then compare the broadcast
5431                  * ESSID to ours */
5432                 if ((priv->config & CFG_STATIC_ESSID) &&
5433                     ((network->ssid_len != priv->essid_len) ||
5434                      memcmp(network->ssid, priv->essid,
5435                             min(network->ssid_len, priv->essid_len)))) {
5436                         char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5437                         strncpy(escaped,
5438                                 escape_essid(network->ssid, network->ssid_len),
5439                                 sizeof(escaped));
5440                         IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5441                                         "because of ESSID mismatch: '%s'.\n",
5442                                         escaped, MAC_ARG(network->bssid),
5443                                         escape_essid(priv->essid,
5444                                                      priv->essid_len));
5445                         return 0;
5446                 }
5447         }
5448
5449         /* If the old network rate is better than this one, don't bother
5450          * testing everything else. */
5451         if (match->network && match->network->stats.rssi > network->stats.rssi) {
5452                 char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
5453                 strncpy(escaped,
5454                         escape_essid(network->ssid, network->ssid_len),
5455                         sizeof(escaped));
5456                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded because "
5457                                 "'%s (" MAC_FMT ")' has a stronger signal.\n",
5458                                 escaped, MAC_ARG(network->bssid),
5459                                 escape_essid(match->network->ssid,
5460                                              match->network->ssid_len),
5461                                 MAC_ARG(match->network->bssid));
5462                 return 0;
5463         }
5464
5465         /* If this network has already had an association attempt within the
5466          * last 3 seconds, do not try and associate again... */
5467         if (network->last_associate &&
5468             time_after(network->last_associate + (HZ * 3UL), jiffies)) {
5469                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5470                                 "because of storming (%lus since last "
5471                                 "assoc attempt).\n",
5472                                 escape_essid(network->ssid, network->ssid_len),
5473                                 MAC_ARG(network->bssid),
5474                                 (jiffies - network->last_associate) / HZ);
5475                 return 0;
5476         }
5477
5478         /* Now go through and see if the requested network is valid... */
5479         if (priv->ieee->scan_age != 0 &&
5480             time_after(jiffies, network->last_scanned + priv->ieee->scan_age)) {
5481                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5482                                 "because of age: %lums.\n",
5483                                 escape_essid(network->ssid, network->ssid_len),
5484                                 MAC_ARG(network->bssid),
5485                                 1000 * (jiffies - network->last_scanned) / HZ);
5486                 return 0;
5487         }
5488
5489         if ((priv->config & CFG_STATIC_CHANNEL) &&
5490             (network->channel != priv->channel)) {
5491                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5492                                 "because of channel mismatch: %d != %d.\n",
5493                                 escape_essid(network->ssid, network->ssid_len),
5494                                 MAC_ARG(network->bssid),
5495                                 network->channel, priv->channel);
5496                 return 0;
5497         }
5498
5499         /* Verify privacy compatability */
5500         if (((priv->capability & CAP_PRIVACY_ON) ? 1 : 0) !=
5501             ((network->capability & WLAN_CAPABILITY_PRIVACY) ? 1 : 0)) {
5502                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5503                                 "because of privacy mismatch: %s != %s.\n",
5504                                 escape_essid(network->ssid, network->ssid_len),
5505                                 MAC_ARG(network->bssid),
5506                                 priv->capability & CAP_PRIVACY_ON ? "on" :
5507                                 "off",
5508                                 network->capability &
5509                                 WLAN_CAPABILITY_PRIVACY ? "on" : "off");
5510                 return 0;
5511         }
5512
5513         if (!priv->ieee->wpa_enabled && (network->wpa_ie_len > 0 ||
5514                                          network->rsn_ie_len > 0)) {
5515                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5516                                 "because of WPA capability mismatch.\n",
5517                                 escape_essid(network->ssid, network->ssid_len),
5518                                 MAC_ARG(network->bssid));
5519                 return 0;
5520         }
5521
5522         if ((priv->config & CFG_STATIC_BSSID) &&
5523             memcmp(network->bssid, priv->bssid, ETH_ALEN)) {
5524                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5525                                 "because of BSSID mismatch: " MAC_FMT ".\n",
5526                                 escape_essid(network->ssid, network->ssid_len),
5527                                 MAC_ARG(network->bssid), MAC_ARG(priv->bssid));
5528                 return 0;
5529         }
5530
5531         /* Filter out any incompatible freq / mode combinations */
5532         if (!ieee80211_is_valid_mode(priv->ieee, network->mode)) {
5533                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5534                                 "because of invalid frequency/mode "
5535                                 "combination.\n",
5536                                 escape_essid(network->ssid, network->ssid_len),
5537                                 MAC_ARG(network->bssid));
5538                 return 0;
5539         }
5540
5541         /* Filter out invalid channel in current GEO */
5542         if (!ipw_is_valid_channel(priv->ieee, network->channel)) {
5543                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5544                                 "because of invalid channel in current GEO\n",
5545                                 escape_essid(network->ssid, network->ssid_len),
5546                                 MAC_ARG(network->bssid));
5547                 return 0;
5548         }
5549
5550         /* Ensure that the rates supported by the driver are compatible with
5551          * this AP, including verification of basic rates (mandatory) */
5552         if (!ipw_compatible_rates(priv, network, &rates)) {
5553                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5554                                 "because configured rate mask excludes "
5555                                 "AP mandatory rate.\n",
5556                                 escape_essid(network->ssid, network->ssid_len),
5557                                 MAC_ARG(network->bssid));
5558                 return 0;
5559         }
5560
5561         if (rates.num_rates == 0) {
5562                 IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' excluded "
5563                                 "because of no compatible rates.\n",
5564                                 escape_essid(network->ssid, network->ssid_len),
5565                                 MAC_ARG(network->bssid));
5566                 return 0;
5567         }
5568
5569         /* TODO: Perform any further minimal comparititive tests.  We do not
5570          * want to put too much policy logic here; intelligent scan selection
5571          * should occur within a generic IEEE 802.11 user space tool.  */
5572
5573         /* Set up 'new' AP to this network */
5574         ipw_copy_rates(&match->rates, &rates);
5575         match->network = network;
5576
5577         IPW_DEBUG_ASSOC("Network '%s (" MAC_FMT ")' is a viable match.\n",
5578                         escape_essid(network->ssid, network->ssid_len),
5579                         MAC_ARG(network->bssid));
5580
5581         return 1;
5582 }
5583
5584 static void ipw_adhoc_create(struct ipw_priv *priv,
5585                              struct ieee80211_network *network)
5586 {
5587         const struct ieee80211_geo *geo = ipw_get_geo(priv->ieee);
5588         int i;
5589
5590         /*
5591          * For the purposes of scanning, we can set our wireless mode
5592          * to trigger scans across combinations of bands, but when it
5593          * comes to creating a new ad-hoc network, we have tell the FW
5594          * exactly which band to use.
5595          *
5596          * We also have the possibility of an invalid channel for the
5597          * chossen band.  Attempting to create a new ad-hoc network
5598          * with an invalid channel for wireless mode will trigger a
5599          * FW fatal error.
5600          *
5601          */
5602         switch (ipw_is_valid_channel(priv->ieee, priv->channel)) {
5603         case IEEE80211_52GHZ_BAND:
5604                 network->mode = IEEE_A;
5605                 i = ipw_channel_to_index(priv->ieee, priv->channel);
5606                 if (i == -1)
5607                         BUG();
5608                 if (geo->a[i].flags & IEEE80211_CH_PASSIVE_ONLY) {
5609                         IPW_WARNING("Overriding invalid channel\n");
5610                         priv->channel = geo->a[0].channel;
5611                 }
5612                 break;
5613
5614         case IEEE80211_24GHZ_BAND:
5615                 if (priv->ieee->mode & IEEE_G)
5616                         network->mode = IEEE_G;
5617                 else
5618                         network->mode = IEEE_B;
5619                 i = ipw_channel_to_index(priv->ieee, priv->channel);
5620                 if (i == -1)
5621                         BUG();
5622                 if (geo->bg[i].flags & IEEE80211_CH_PASSIVE_ONLY) {
5623                         IPW_WARNING("Overriding invalid channel\n");
5624                         priv->channel = geo->bg[0].channel;
5625                 }
5626                 break;
5627
5628         default:
5629                 IPW_WARNING("Overriding invalid channel\n");
5630                 if (priv->ieee->mode & IEEE_A) {
5631                         network->mode = IEEE_A;
5632                         priv->channel = geo->a[0].channel;
5633                 } else if (priv->ieee->mode & IEEE_G) {
5634                         network->mode = IEEE_G;
5635                         priv->channel = geo->bg[0].channel;
5636                 } else {
5637                         network->mode = IEEE_B;
5638                         priv->channel = geo->bg[0].channel;
5639                 }
5640                 break;
5641         }
5642
5643         network->channel = priv->channel;
5644         priv->config |= CFG_ADHOC_PERSIST;
5645         ipw_create_bssid(priv, network->bssid);
5646         network->ssid_len = priv->essid_len;
5647         memcpy(network->ssid, priv->essid, priv->essid_len);
5648         memset(&network->stats, 0, sizeof(network->stats));
5649         network->capability = WLAN_CAPABILITY_IBSS;
5650         if (!(priv->config & CFG_PREAMBLE_LONG))
5651                 network->capability |= WLAN_CAPABILITY_SHORT_PREAMBLE;
5652         if (priv->capability & CAP_PRIVACY_ON)
5653                 network->capability |= WLAN_CAPABILITY_PRIVACY;
5654         network->rates_len = min(priv->rates.num_rates, MAX_RATES_LENGTH);
5655         memcpy(network->rates, priv->rates.supported_rates, network->rates_len);
5656         network->rates_ex_len = priv->rates.num_rates - network->rates_len;
5657         memcpy(network->rates_ex,
5658                &priv->rates.supported_rates[network->rates_len],
5659                network->rates_ex_len);
5660         network->last_scanned = 0;
5661         network->flags = 0;
5662         network->last_associate = 0;
5663         network->time_stamp[0] = 0;
5664         network->time_stamp[1] = 0;
5665         network->beacon_interval = 100; /* Default */
5666         network->listen_interval = 10;  /* Default */
5667         network->atim_window = 0;       /* Default */
5668         network->wpa_ie_len = 0;
5669         network->rsn_ie_len = 0;
5670 }
5671
5672 static void ipw_send_tgi_tx_key(struct ipw_priv *priv, int type, int index)
5673 {
5674         struct ipw_tgi_tx_key *key;
5675         struct host_cmd cmd = {
5676                 .cmd = IPW_CMD_TGI_TX_KEY,
5677                 .len = sizeof(*key)
5678         };
5679
5680         if (!(priv->ieee->sec.flags & (1 << index)))
5681                 return;
5682
5683         key = (struct ipw_tgi_tx_key *)&cmd.param;
5684         key->key_id = index;
5685         memcpy(key->key, priv->ieee->sec.keys[index], SCM_TEMPORAL_KEY_LENGTH);
5686         key->security_type = type;
5687         key->station_index = 0; /* always 0 for BSS */
5688         key->flags = 0;
5689         /* 0 for new key; previous value of counter (after fatal error) */
5690         key->tx_counter[0] = 0;
5691         key->tx_counter[1] = 0;
5692
5693         ipw_send_cmd(priv, &cmd);
5694 }
5695
5696 static void ipw_send_wep_keys(struct ipw_priv *priv, int type)
5697 {
5698         struct ipw_wep_key *key;
5699         int i;
5700         struct host_cmd cmd = {
5701                 .cmd = IPW_CMD_WEP_KEY,
5702                 .len = sizeof(*key)
5703         };
5704
5705         key = (struct ipw_wep_key *)&cmd.param;
5706         key->cmd_id = DINO_CMD_WEP_KEY;
5707         key->seq_num = 0;
5708
5709         /* Note: AES keys cannot be set for multiple times.
5710          * Only set it at the first time. */
5711         for (i = 0; i < 4; i++) {
5712                 key->key_index = i | type;
5713                 if (!(priv->ieee->sec.flags & (1 << i))) {
5714                         key->key_size = 0;
5715                         continue;
5716                 }
5717
5718                 key->key_size = priv->ieee->sec.key_sizes[i];
5719                 memcpy(key->key, priv->ieee->sec.keys[i], key->key_size);
5720
5721                 ipw_send_cmd(priv, &cmd);
5722         }
5723 }
5724
5725 static void ipw_set_hw_decrypt_unicast(struct ipw_priv *priv, int level)
5726 {
5727         if (priv->ieee->host_encrypt)
5728                 return;
5729
5730         switch (level) {
5731         case SEC_LEVEL_3:
5732                 priv->sys_config.disable_unicast_decryption = 0;
5733                 priv->ieee->host_decrypt = 0;
5734                 break;
5735         case SEC_LEVEL_2:
5736                 priv->sys_config.disable_unicast_decryption = 1;
5737                 priv->ieee->host_decrypt = 1;
5738                 break;
5739         case SEC_LEVEL_1:
5740                 priv->sys_config.disable_unicast_decryption = 0;
5741                 priv->ieee->host_decrypt = 0;
5742                 break;
5743         case SEC_LEVEL_0:
5744                 priv->sys_config.disable_unicast_decryption = 1;
5745                 break;
5746         default:
5747                 break;
5748         }
5749 }
5750
5751 static void ipw_set_hw_decrypt_multicast(struct ipw_priv *priv, int level)
5752 {
5753         if (priv->ieee->host_encrypt)
5754                 return;
5755
5756         switch (level) {
5757         case SEC_LEVEL_3:
5758                 priv->sys_config.disable_multicast_decryption = 0;
5759                 break;
5760         case SEC_LEVEL_2:
5761                 priv->sys_config.disable_multicast_decryption = 1;
5762                 break;
5763         case SEC_LEVEL_1:
5764                 priv->sys_config.disable_multicast_decryption = 0;
5765                 break;
5766         case SEC_LEVEL_0:
5767                 priv->sys_config.disable_multicast_decryption = 1;
5768                 break;
5769         default:
5770                 break;
5771         }
5772 }
5773
5774 static void ipw_set_hwcrypto_keys(struct ipw_priv *priv)
5775 {
5776         switch (priv->ieee->sec.level) {
5777         case SEC_LEVEL_3:
5778                 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
5779                         ipw_send_tgi_tx_key(priv,
5780                                             DCT_FLAG_EXT_SECURITY_CCM,
5781                                             priv->ieee->sec.active_key);
5782
5783                 if (!priv->ieee->host_mc_decrypt)
5784                         ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_CCM);
5785                 break;
5786         case SEC_LEVEL_2:
5787                 if (priv->ieee->sec.flags & SEC_ACTIVE_KEY)
5788                         ipw_send_tgi_tx_key(priv,
5789                                             DCT_FLAG_EXT_SECURITY_TKIP,
5790                                             priv->ieee->sec.active_key);
5791                 break;
5792         case SEC_LEVEL_1:
5793                 ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
5794                 ipw_set_hw_decrypt_unicast(priv, priv->ieee->sec.level);
5795                 ipw_set_hw_decrypt_multicast(priv, priv->ieee->sec.level);
5796                 break;
5797         case SEC_LEVEL_0:
5798         default:
5799                 break;
5800         }
5801 }
5802
5803 static void ipw_adhoc_check(void *data)
5804 {
5805         struct ipw_priv *priv = data;
5806
5807         if (priv->missed_adhoc_beacons++ > priv->disassociate_threshold &&
5808             !(priv->config & CFG_ADHOC_PERSIST)) {
5809                 IPW_DEBUG(IPW_DL_INFO | IPW_DL_NOTIF |
5810                           IPW_DL_STATE | IPW_DL_ASSOC,
5811                           "Missed beacon: %d - disassociate\n",
5812                           priv->missed_adhoc_beacons);
5813                 ipw_remove_current_network(priv);
5814                 ipw_disassociate(priv);
5815                 return;
5816         }
5817
5818         queue_delayed_work(priv->workqueue, &priv->adhoc_check,
5819                            priv->assoc_request.beacon_interval);
5820 }
5821
5822 static void ipw_bg_adhoc_check(void *data)
5823 {
5824         struct ipw_priv *priv = data;
5825         down(&priv->sem);
5826         ipw_adhoc_check(data);
5827         up(&priv->sem);
5828 }
5829
5830 #ifdef CONFIG_IPW2200_DEBUG
5831 static void ipw_debug_config(struct ipw_priv *priv)
5832 {
5833         IPW_DEBUG_INFO("Scan completed, no valid APs matched "
5834                        "[CFG 0x%08X]\n", priv->config);
5835         if (priv->config & CFG_STATIC_CHANNEL)
5836                 IPW_DEBUG_INFO("Channel locked to %d\n", priv->channel);
5837         else
5838                 IPW_DEBUG_INFO("Channel unlocked.\n");
5839         if (priv->config & CFG_STATIC_ESSID)
5840                 IPW_DEBUG_INFO("ESSID locked to '%s'\n",
5841                                escape_essid(priv->essid, priv->essid_len));
5842         else
5843                 IPW_DEBUG_INFO("ESSID unlocked.\n");
5844         if (priv->config & CFG_STATIC_BSSID)
5845                 IPW_DEBUG_INFO("BSSID locked to " MAC_FMT "\n",
5846                                MAC_ARG(priv->bssid));
5847         else
5848                 IPW_DEBUG_INFO("BSSID unlocked.\n");
5849         if (priv->capability & CAP_PRIVACY_ON)
5850                 IPW_DEBUG_INFO("PRIVACY on\n");
5851         else
5852                 IPW_DEBUG_INFO("PRIVACY off\n");
5853         IPW_DEBUG_INFO("RATE MASK: 0x%08X\n", priv->rates_mask);
5854 }
5855 #else
5856 #define ipw_debug_config(x) do {} while (0)
5857 #endif
5858
5859 static inline void ipw_set_fixed_rate(struct ipw_priv *priv, int mode)
5860 {
5861         /* TODO: Verify that this works... */
5862         struct ipw_fixed_rate fr = {
5863                 .tx_rates = priv->rates_mask
5864         };
5865         u32 reg;
5866         u16 mask = 0;
5867
5868         /* Identify 'current FW band' and match it with the fixed
5869          * Tx rates */
5870
5871         switch (priv->ieee->freq_band) {
5872         case IEEE80211_52GHZ_BAND:      /* A only */
5873                 /* IEEE_A */
5874                 if (priv->rates_mask & ~IEEE80211_OFDM_RATES_MASK) {
5875                         /* Invalid fixed rate mask */
5876                         IPW_DEBUG_WX
5877                             ("invalid fixed rate mask in ipw_set_fixed_rate\n");
5878                         fr.tx_rates = 0;
5879                         break;
5880                 }
5881
5882                 fr.tx_rates >>= IEEE80211_OFDM_SHIFT_MASK_A;
5883                 break;
5884
5885         default:                /* 2.4Ghz or Mixed */
5886                 /* IEEE_B */
5887                 if (mode == IEEE_B) {
5888                         if (fr.tx_rates & ~IEEE80211_CCK_RATES_MASK) {
5889                                 /* Invalid fixed rate mask */
5890                                 IPW_DEBUG_WX
5891                                     ("invalid fixed rate mask in ipw_set_fixed_rate\n");
5892                                 fr.tx_rates = 0;
5893                         }
5894                         break;
5895                 }
5896
5897                 /* IEEE_G */
5898                 if (fr.tx_rates & ~(IEEE80211_CCK_RATES_MASK |
5899                                     IEEE80211_OFDM_RATES_MASK)) {
5900                         /* Invalid fixed rate mask */
5901                         IPW_DEBUG_WX
5902                             ("invalid fixed rate mask in ipw_set_fixed_rate\n");
5903                         fr.tx_rates = 0;
5904                         break;
5905                 }
5906
5907                 if (IEEE80211_OFDM_RATE_6MB_MASK & fr.tx_rates) {
5908                         mask |= (IEEE80211_OFDM_RATE_6MB_MASK >> 1);
5909                         fr.tx_rates &= ~IEEE80211_OFDM_RATE_6MB_MASK;
5910                 }
5911
5912                 if (IEEE80211_OFDM_RATE_9MB_MASK & fr.tx_rates) {
5913                         mask |= (IEEE80211_OFDM_RATE_9MB_MASK >> 1);
5914                         fr.tx_rates &= ~IEEE80211_OFDM_RATE_9MB_MASK;
5915                 }
5916
5917                 if (IEEE80211_OFDM_RATE_12MB_MASK & fr.tx_rates) {
5918                         mask |= (IEEE80211_OFDM_RATE_12MB_MASK >> 1);
5919                         fr.tx_rates &= ~IEEE80211_OFDM_RATE_12MB_MASK;
5920                 }
5921
5922                 fr.tx_rates |= mask;
5923                 break;
5924         }
5925
5926         reg = ipw_read32(priv, IPW_MEM_FIXED_OVERRIDE);
5927         ipw_write_reg32(priv, reg, *(u32 *) & fr);
5928 }
5929
5930 static void ipw_abort_scan(struct ipw_priv *priv)
5931 {
5932         int err;
5933
5934         if (priv->status & STATUS_SCAN_ABORTING) {
5935                 IPW_DEBUG_HC("Ignoring concurrent scan abort request.\n");
5936                 return;
5937         }
5938         priv->status |= STATUS_SCAN_ABORTING;
5939
5940         err = ipw_send_scan_abort(priv);
5941         if (err)
5942                 IPW_DEBUG_HC("Request to abort scan failed.\n");
5943 }
5944
5945 static void ipw_add_scan_channels(struct ipw_priv *priv,
5946                                   struct ipw_scan_request_ext *scan,
5947                                   int scan_type)
5948 {
5949         int channel_index = 0;
5950         const struct ieee80211_geo *geo;
5951         int i;
5952
5953         geo = ipw_get_geo(priv->ieee);
5954
5955         if (priv->ieee->freq_band & IEEE80211_52GHZ_BAND) {
5956                 int start = channel_index;
5957                 for (i = 0; i < geo->a_channels; i++) {
5958                         if ((priv->status & STATUS_ASSOCIATED) &&
5959                             geo->a[i].channel == priv->channel)
5960                                 continue;
5961                         channel_index++;
5962                         scan->channels_list[channel_index] = geo->a[i].channel;
5963                         ipw_set_scan_type(scan, channel_index,
5964                                           geo->a[i].
5965                                           flags & IEEE80211_CH_PASSIVE_ONLY ?
5966                                           IPW_SCAN_PASSIVE_FULL_DWELL_SCAN :
5967                                           scan_type);
5968                 }
5969
5970                 if (start != channel_index) {
5971                         scan->channels_list[start] = (u8) (IPW_A_MODE << 6) |
5972                             (channel_index - start);
5973                         channel_index++;
5974                 }
5975         }
5976
5977         if (priv->ieee->freq_band & IEEE80211_24GHZ_BAND) {
5978                 int start = channel_index;
5979                 if (priv->config & CFG_SPEED_SCAN) {
5980                         int index;
5981                         u8 channels[IEEE80211_24GHZ_CHANNELS] = {
5982                                 /* nop out the list */
5983                                 [0] = 0
5984                         };
5985
5986                         u8 channel;
5987                         while (channel_index < IPW_SCAN_CHANNELS) {
5988                                 channel =
5989                                     priv->speed_scan[priv->speed_scan_pos];
5990                                 if (channel == 0) {
5991                                         priv->speed_scan_pos = 0;
5992                                         channel = priv->speed_scan[0];
5993                                 }
5994                                 if ((priv->status & STATUS_ASSOCIATED) &&
5995                                     channel == priv->channel) {
5996                                         priv->speed_scan_pos++;
5997                                         continue;
5998                                 }
5999
6000                                 /* If this channel has already been
6001                                  * added in scan, break from loop
6002                                  * and this will be the first channel
6003                                  * in the next scan.
6004                                  */
6005                                 if (channels[channel - 1] != 0)
6006                                         break;
6007
6008                                 channels[channel - 1] = 1;
6009                                 priv->speed_scan_pos++;
6010                                 channel_index++;
6011                                 scan->channels_list[channel_index] = channel;
6012                                 index =
6013                                     ipw_channel_to_index(priv->ieee, channel);
6014                                 ipw_set_scan_type(scan, channel_index,
6015                                                   geo->bg[index].
6016                                                   flags &
6017                                                   IEEE80211_CH_PASSIVE_ONLY ?
6018                                                   IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6019                                                   : scan_type);
6020                         }
6021                 } else {
6022                         for (i = 0; i < geo->bg_channels; i++) {
6023                                 if ((priv->status & STATUS_ASSOCIATED) &&
6024                                     geo->bg[i].channel == priv->channel)
6025                                         continue;
6026                                 channel_index++;
6027                                 scan->channels_list[channel_index] =
6028                                     geo->bg[i].channel;
6029                                 ipw_set_scan_type(scan, channel_index,
6030                                                   geo->bg[i].
6031                                                   flags &
6032                                                   IEEE80211_CH_PASSIVE_ONLY ?
6033                                                   IPW_SCAN_PASSIVE_FULL_DWELL_SCAN
6034                                                   : scan_type);
6035                         }
6036                 }
6037
6038                 if (start != channel_index) {
6039                         scan->channels_list[start] = (u8) (IPW_B_MODE << 6) |
6040                             (channel_index - start);
6041                 }
6042         }
6043 }
6044
6045 static int ipw_request_scan(struct ipw_priv *priv)
6046 {
6047         struct ipw_scan_request_ext scan;
6048         int err = 0, scan_type;
6049
6050         if (!(priv->status & STATUS_INIT) ||
6051             (priv->status & STATUS_EXIT_PENDING))
6052                 return 0;
6053
6054         down(&priv->sem);
6055
6056         if (priv->status & STATUS_SCANNING) {
6057                 IPW_DEBUG_HC("Concurrent scan requested.  Ignoring.\n");
6058                 priv->status |= STATUS_SCAN_PENDING;
6059                 goto done;
6060         }
6061
6062         if (!(priv->status & STATUS_SCAN_FORCED) &&
6063             priv->status & STATUS_SCAN_ABORTING) {
6064                 IPW_DEBUG_HC("Scan request while abort pending.  Queuing.\n");
6065                 priv->status |= STATUS_SCAN_PENDING;
6066                 goto done;
6067         }
6068
6069         if (priv->status & STATUS_RF_KILL_MASK) {
6070                 IPW_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6071                 priv->status |= STATUS_SCAN_PENDING;
6072                 goto done;
6073         }
6074
6075         memset(&scan, 0, sizeof(scan));
6076
6077         if (priv->config & CFG_SPEED_SCAN)
6078                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6079                     cpu_to_le16(30);
6080         else
6081                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
6082                     cpu_to_le16(20);
6083
6084         scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] =
6085             cpu_to_le16(20);
6086         scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = cpu_to_le16(120);
6087
6088         scan.full_scan_index = cpu_to_le32(ieee80211_get_scans(priv->ieee));
6089
6090 #ifdef CONFIG_IPW2200_MONITOR
6091         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
6092                 u8 channel;
6093                 u8 band = 0;
6094
6095                 switch (ipw_is_valid_channel(priv->ieee, priv->channel)) {
6096                 case IEEE80211_52GHZ_BAND:
6097                         band = (u8) (IPW_A_MODE << 6) | 1;
6098                         channel = priv->channel;
6099                         break;
6100
6101                 case IEEE80211_24GHZ_BAND:
6102                         band = (u8) (IPW_B_MODE << 6) | 1;
6103                         channel = priv->channel;
6104                         break;
6105
6106                 default:
6107                         band = (u8) (IPW_B_MODE << 6) | 1;
6108                         channel = 9;
6109                         break;
6110                 }
6111
6112                 scan.channels_list[0] = band;
6113                 scan.channels_list[1] = channel;
6114                 ipw_set_scan_type(&scan, 1, IPW_SCAN_PASSIVE_FULL_DWELL_SCAN);
6115
6116                 /* NOTE:  The card will sit on this channel for this time
6117                  * period.  Scan aborts are timing sensitive and frequently
6118                  * result in firmware restarts.  As such, it is best to
6119                  * set a small dwell_time here and just keep re-issuing
6120                  * scans.  Otherwise fast channel hopping will not actually
6121                  * hop channels.
6122                  *
6123                  * TODO: Move SPEED SCAN support to all modes and bands */
6124                 scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] =
6125                     cpu_to_le16(2000);
6126         } else {
6127 #endif                          /* CONFIG_IPW2200_MONITOR */
6128                 /* If we are roaming, then make this a directed scan for the
6129                  * current network.  Otherwise, ensure that every other scan
6130                  * is a fast channel hop scan */
6131                 if ((priv->status & STATUS_ROAMING)
6132                     || (!(priv->status & STATUS_ASSOCIATED)
6133                         && (priv->config & CFG_STATIC_ESSID)
6134                         && (le32_to_cpu(scan.full_scan_index) % 2))) {
6135                         err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
6136                         if (err) {
6137                                 IPW_DEBUG_HC("Attempt to send SSID command "
6138                                              "failed.\n");
6139                                 goto done;
6140                         }
6141
6142                         scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
6143                 } else
6144                         scan_type = IPW_SCAN_ACTIVE_BROADCAST_SCAN;
6145
6146                 ipw_add_scan_channels(priv, &scan, scan_type);
6147 #ifdef CONFIG_IPW2200_MONITOR
6148         }
6149 #endif
6150
6151         err = ipw_send_scan_request_ext(priv, &scan);
6152         if (err) {
6153                 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err);
6154                 goto done;
6155         }
6156
6157         priv->status |= STATUS_SCANNING;
6158         priv->status &= ~STATUS_SCAN_PENDING;
6159         queue_delayed_work(priv->workqueue, &priv->scan_check,
6160                            IPW_SCAN_CHECK_WATCHDOG);
6161       done:
6162         up(&priv->sem);
6163         return err;
6164 }
6165
6166 static void ipw_bg_abort_scan(void *data)
6167 {
6168         struct ipw_priv *priv = data;
6169         down(&priv->sem);
6170         ipw_abort_scan(data);
6171         up(&priv->sem);
6172 }
6173
6174 static int ipw_wpa_enable(struct ipw_priv *priv, int value)
6175 {
6176         /* This is called when wpa_supplicant loads and closes the driver
6177          * interface. */
6178         priv->ieee->wpa_enabled = value;
6179         return 0;
6180 }
6181
6182 static int ipw_wpa_set_auth_algs(struct ipw_priv *priv, int value)
6183 {
6184         struct ieee80211_device *ieee = priv->ieee;
6185         struct ieee80211_security sec = {
6186                 .flags = SEC_AUTH_MODE,
6187         };
6188         int ret = 0;
6189
6190         if (value & IW_AUTH_ALG_SHARED_KEY) {
6191                 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
6192                 ieee->open_wep = 0;
6193         } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
6194                 sec.auth_mode = WLAN_AUTH_OPEN;
6195                 ieee->open_wep = 1;
6196         } else
6197                 return -EINVAL;
6198
6199         if (ieee->set_security)
6200                 ieee->set_security(ieee->dev, &sec);
6201         else
6202                 ret = -EOPNOTSUPP;
6203
6204         return ret;
6205 }
6206
6207 void ipw_wpa_assoc_frame(struct ipw_priv *priv, char *wpa_ie, int wpa_ie_len)
6208 {
6209         /* make sure WPA is enabled */
6210         ipw_wpa_enable(priv, 1);
6211
6212         ipw_disassociate(priv);
6213 }
6214
6215 static int ipw_set_rsn_capa(struct ipw_priv *priv,
6216                             char *capabilities, int length)
6217 {
6218         struct host_cmd cmd = {
6219                 .cmd = IPW_CMD_RSN_CAPABILITIES,
6220                 .len = length,
6221         };
6222
6223         IPW_DEBUG_HC("HOST_CMD_RSN_CAPABILITIES\n");
6224
6225         memcpy(cmd.param, capabilities, length);
6226         return ipw_send_cmd(priv, &cmd);
6227 }
6228
6229 /*
6230  * WE-18 support
6231  */
6232
6233 /* SIOCSIWGENIE */
6234 static int ipw_wx_set_genie(struct net_device *dev,
6235                             struct iw_request_info *info,
6236                             union iwreq_data *wrqu, char *extra)
6237 {
6238         struct ipw_priv *priv = ieee80211_priv(dev);
6239         struct ieee80211_device *ieee = priv->ieee;
6240         u8 *buf;
6241         int err = 0;
6242
6243         if (wrqu->data.length > MAX_WPA_IE_LEN ||
6244             (wrqu->data.length && extra == NULL))
6245                 return -EINVAL;
6246
6247         //down(&priv->sem);
6248
6249         //if (!ieee->wpa_enabled) {
6250         //      err = -EOPNOTSUPP;
6251         //      goto out;
6252         //}
6253
6254         if (wrqu->data.length) {
6255                 buf = kmalloc(wrqu->data.length, GFP_KERNEL);
6256                 if (buf == NULL) {
6257                         err = -ENOMEM;
6258                         goto out;
6259                 }
6260
6261                 memcpy(buf, extra, wrqu->data.length);
6262                 kfree(ieee->wpa_ie);
6263                 ieee->wpa_ie = buf;
6264                 ieee->wpa_ie_len = wrqu->data.length;
6265         } else {
6266                 kfree(ieee->wpa_ie);
6267                 ieee->wpa_ie = NULL;
6268                 ieee->wpa_ie_len = 0;
6269         }
6270
6271         ipw_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
6272       out:
6273         //up(&priv->sem);
6274         return err;
6275 }
6276
6277 /* SIOCGIWGENIE */
6278 static int ipw_wx_get_genie(struct net_device *dev,
6279                             struct iw_request_info *info,
6280                             union iwreq_data *wrqu, char *extra)
6281 {
6282         struct ipw_priv *priv = ieee80211_priv(dev);
6283         struct ieee80211_device *ieee = priv->ieee;
6284         int err = 0;
6285
6286         //down(&priv->sem);
6287
6288         //if (!ieee->wpa_enabled) {
6289         //      err = -EOPNOTSUPP;
6290         //      goto out;
6291         //}
6292
6293         if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
6294                 wrqu->data.length = 0;
6295                 goto out;
6296         }
6297
6298         if (wrqu->data.length < ieee->wpa_ie_len) {
6299                 err = -E2BIG;
6300                 goto out;
6301         }
6302
6303         wrqu->data.length = ieee->wpa_ie_len;
6304         memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
6305
6306       out:
6307         //up(&priv->sem);
6308         return err;
6309 }
6310
6311 static int wext_cipher2level(int cipher)
6312 {
6313         switch (cipher) {
6314         case IW_AUTH_CIPHER_NONE:
6315                 return SEC_LEVEL_0;
6316         case IW_AUTH_CIPHER_WEP40:
6317         case IW_AUTH_CIPHER_WEP104:
6318                 return SEC_LEVEL_1;
6319         case IW_AUTH_CIPHER_TKIP:
6320                 return SEC_LEVEL_2;
6321         case IW_AUTH_CIPHER_CCMP:
6322                 return SEC_LEVEL_3;
6323         default:
6324                 return -1;
6325         }
6326 }
6327
6328 /* SIOCSIWAUTH */
6329 static int ipw_wx_set_auth(struct net_device *dev,
6330                            struct iw_request_info *info,
6331                            union iwreq_data *wrqu, char *extra)
6332 {
6333         struct ipw_priv *priv = ieee80211_priv(dev);
6334         struct ieee80211_device *ieee = priv->ieee;
6335         struct iw_param *param = &wrqu->param;
6336         struct ieee80211_crypt_data *crypt;
6337         unsigned long flags;
6338         int ret = 0;
6339
6340         switch (param->flags & IW_AUTH_INDEX) {
6341         case IW_AUTH_WPA_VERSION:
6342                 break;
6343         case IW_AUTH_CIPHER_PAIRWISE:
6344                 ipw_set_hw_decrypt_unicast(priv,
6345                                            wext_cipher2level(param->value));
6346                 break;
6347         case IW_AUTH_CIPHER_GROUP:
6348                 ipw_set_hw_decrypt_multicast(priv,
6349                                              wext_cipher2level(param->value));
6350                 break;
6351         case IW_AUTH_KEY_MGMT:
6352                 /*
6353                  * ipw2200 does not use these parameters
6354                  */
6355                 break;
6356
6357         case IW_AUTH_TKIP_COUNTERMEASURES:
6358                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
6359                 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
6360                         break;
6361
6362                 flags = crypt->ops->get_flags(crypt->priv);
6363
6364                 if (param->value)
6365                         flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6366                 else
6367                         flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
6368
6369                 crypt->ops->set_flags(flags, crypt->priv);
6370
6371                 break;
6372
6373         case IW_AUTH_DROP_UNENCRYPTED:{
6374                         /* HACK:
6375                          *
6376                          * wpa_supplicant calls set_wpa_enabled when the driver
6377                          * is loaded and unloaded, regardless of if WPA is being
6378                          * used.  No other calls are made which can be used to
6379                          * determine if encryption will be used or not prior to
6380                          * association being expected.  If encryption is not being
6381                          * used, drop_unencrypted is set to false, else true -- we
6382                          * can use this to determine if the CAP_PRIVACY_ON bit should
6383                          * be set.
6384                          */
6385                         struct ieee80211_security sec = {
6386                                 .flags = SEC_ENABLED,
6387                                 .enabled = param->value,
6388                         };
6389                         priv->ieee->drop_unencrypted = param->value;
6390                         /* We only change SEC_LEVEL for open mode. Others
6391                          * are set by ipw_wpa_set_encryption.
6392                          */
6393                         if (!param->value) {
6394                                 sec.flags |= SEC_LEVEL;
6395                                 sec.level = SEC_LEVEL_0;
6396                         } else {
6397                                 sec.flags |= SEC_LEVEL;
6398                                 sec.level = SEC_LEVEL_1;
6399                         }
6400                         if (priv->ieee->set_security)
6401                                 priv->ieee->set_security(priv->ieee->dev, &sec);
6402                         break;
6403                 }
6404
6405         case IW_AUTH_80211_AUTH_ALG:
6406                 ret = ipw_wpa_set_auth_algs(priv, param->value);
6407                 break;
6408
6409         case IW_AUTH_WPA_ENABLED:
6410                 ret = ipw_wpa_enable(priv, param->value);
6411                 break;
6412
6413         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6414                 ieee->ieee802_1x = param->value;
6415                 break;
6416
6417                 //case IW_AUTH_ROAMING_CONTROL:
6418         case IW_AUTH_PRIVACY_INVOKED:
6419                 ieee->privacy_invoked = param->value;
6420                 break;
6421
6422         default:
6423                 return -EOPNOTSUPP;
6424         }
6425         return ret;
6426 }
6427
6428 /* SIOCGIWAUTH */
6429 static int ipw_wx_get_auth(struct net_device *dev,
6430                            struct iw_request_info *info,
6431                            union iwreq_data *wrqu, char *extra)
6432 {
6433         struct ipw_priv *priv = ieee80211_priv(dev);
6434         struct ieee80211_device *ieee = priv->ieee;
6435         struct ieee80211_crypt_data *crypt;
6436         struct iw_param *param = &wrqu->param;
6437         int ret = 0;
6438
6439         switch (param->flags & IW_AUTH_INDEX) {
6440         case IW_AUTH_WPA_VERSION:
6441         case IW_AUTH_CIPHER_PAIRWISE:
6442         case IW_AUTH_CIPHER_GROUP:
6443         case IW_AUTH_KEY_MGMT:
6444                 /*
6445                  * wpa_supplicant will control these internally
6446                  */
6447                 ret = -EOPNOTSUPP;
6448                 break;
6449
6450         case IW_AUTH_TKIP_COUNTERMEASURES:
6451                 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
6452                 if (!crypt || !crypt->ops->get_flags)
6453                         break;
6454
6455                 param->value = (crypt->ops->get_flags(crypt->priv) &
6456                                 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
6457
6458                 break;
6459
6460         case IW_AUTH_DROP_UNENCRYPTED:
6461                 param->value = ieee->drop_unencrypted;
6462                 break;
6463
6464         case IW_AUTH_80211_AUTH_ALG:
6465                 param->value = ieee->sec.auth_mode;
6466                 break;
6467
6468         case IW_AUTH_WPA_ENABLED:
6469                 param->value = ieee->wpa_enabled;
6470                 break;
6471
6472         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
6473                 param->value = ieee->ieee802_1x;
6474                 break;
6475
6476         case IW_AUTH_ROAMING_CONTROL:
6477         case IW_AUTH_PRIVACY_INVOKED:
6478                 param->value = ieee->privacy_invoked;
6479                 break;
6480
6481         default:
6482                 return -EOPNOTSUPP;
6483         }
6484         return 0;
6485 }
6486
6487 /* SIOCSIWENCODEEXT */
6488 static int ipw_wx_set_encodeext(struct net_device *dev,
6489                                 struct iw_request_info *info,
6490                                 union iwreq_data *wrqu, char *extra)
6491 {
6492         struct ipw_priv *priv = ieee80211_priv(dev);
6493         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
6494
6495         if (hwcrypto) {
6496                 if (ext->alg == IW_ENCODE_ALG_TKIP) {
6497                         /* IPW HW can't build TKIP MIC,
6498                            host decryption still needed */
6499                         if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
6500                                 priv->ieee->host_mc_decrypt = 1;
6501                         else {
6502                                 priv->ieee->host_encrypt = 0;
6503                                 priv->ieee->host_encrypt_msdu = 1;
6504                                 priv->ieee->host_decrypt = 1;
6505                         }
6506                 } else {
6507                         priv->ieee->host_encrypt = 0;
6508                         priv->ieee->host_encrypt_msdu = 0;
6509                         priv->ieee->host_decrypt = 0;
6510                         priv->ieee->host_mc_decrypt = 0;
6511                 }
6512         }
6513
6514         return ieee80211_wx_set_encodeext(priv->ieee, info, wrqu, extra);
6515 }
6516
6517 /* SIOCGIWENCODEEXT */
6518 static int ipw_wx_get_encodeext(struct net_device *dev,
6519                                 struct iw_request_info *info,
6520                                 union iwreq_data *wrqu, char *extra)
6521 {
6522         struct ipw_priv *priv = ieee80211_priv(dev);
6523         return ieee80211_wx_get_encodeext(priv->ieee, info, wrqu, extra);
6524 }
6525
6526 /* SIOCSIWMLME */
6527 static int ipw_wx_set_mlme(struct net_device *dev,
6528                            struct iw_request_info *info,
6529                            union iwreq_data *wrqu, char *extra)
6530 {
6531         struct ipw_priv *priv = ieee80211_priv(dev);
6532         struct iw_mlme *mlme = (struct iw_mlme *)extra;
6533         u16 reason;
6534
6535         reason = cpu_to_le16(mlme->reason_code);
6536
6537         switch (mlme->cmd) {
6538         case IW_MLME_DEAUTH:
6539                 // silently ignore
6540                 break;
6541
6542         case IW_MLME_DISASSOC:
6543                 ipw_disassociate(priv);
6544                 break;
6545
6546         default:
6547                 return -EOPNOTSUPP;
6548         }
6549         return 0;
6550 }
6551
6552 #ifdef CONFIG_IPW_QOS
6553
6554 /* QoS */
6555 /*
6556 * get the modulation type of the current network or
6557 * the card current mode
6558 */
6559 u8 ipw_qos_current_mode(struct ipw_priv * priv)
6560 {
6561         u8 mode = 0;
6562
6563         if (priv->status & STATUS_ASSOCIATED) {
6564                 unsigned long flags;
6565
6566                 spin_lock_irqsave(&priv->ieee->lock, flags);
6567                 mode = priv->assoc_network->mode;
6568                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6569         } else {
6570                 mode = priv->ieee->mode;
6571         }
6572         IPW_DEBUG_QOS("QoS network/card mode %d \n", mode);
6573         return mode;
6574 }
6575
6576 /*
6577 * Handle management frame beacon and probe response
6578 */
6579 static int ipw_qos_handle_probe_response(struct ipw_priv *priv,
6580                                          int active_network,
6581                                          struct ieee80211_network *network)
6582 {
6583         u32 size = sizeof(struct ieee80211_qos_parameters);
6584
6585         if (network->capability & WLAN_CAPABILITY_IBSS)
6586                 network->qos_data.active = network->qos_data.supported;
6587
6588         if (network->flags & NETWORK_HAS_QOS_MASK) {
6589                 if (active_network &&
6590                     (network->flags & NETWORK_HAS_QOS_PARAMETERS))
6591                         network->qos_data.active = network->qos_data.supported;
6592
6593                 if ((network->qos_data.active == 1) && (active_network == 1) &&
6594                     (network->flags & NETWORK_HAS_QOS_PARAMETERS) &&
6595                     (network->qos_data.old_param_count !=
6596                      network->qos_data.param_count)) {
6597                         network->qos_data.old_param_count =
6598                             network->qos_data.param_count;
6599                         schedule_work(&priv->qos_activate);
6600                         IPW_DEBUG_QOS("QoS parameters change call "
6601                                       "qos_activate\n");
6602                 }
6603         } else {
6604                 if ((priv->ieee->mode == IEEE_B) || (network->mode == IEEE_B))
6605                         memcpy(&network->qos_data.parameters,
6606                                &def_parameters_CCK, size);
6607                 else
6608                         memcpy(&network->qos_data.parameters,
6609                                &def_parameters_OFDM, size);
6610
6611                 if ((network->qos_data.active == 1) && (active_network == 1)) {
6612                         IPW_DEBUG_QOS("QoS was disabled call qos_activate \n");
6613                         schedule_work(&priv->qos_activate);
6614                 }
6615
6616                 network->qos_data.active = 0;
6617                 network->qos_data.supported = 0;
6618         }
6619         if ((priv->status & STATUS_ASSOCIATED) &&
6620             (priv->ieee->iw_mode == IW_MODE_ADHOC) && (active_network == 0)) {
6621                 if (memcmp(network->bssid, priv->bssid, ETH_ALEN))
6622                         if ((network->capability & WLAN_CAPABILITY_IBSS) &&
6623                             !(network->flags & NETWORK_EMPTY_ESSID))
6624                                 if ((network->ssid_len ==
6625                                      priv->assoc_network->ssid_len) &&
6626                                     !memcmp(network->ssid,
6627                                             priv->assoc_network->ssid,
6628                                             network->ssid_len)) {
6629                                         queue_work(priv->workqueue,
6630                                                    &priv->merge_networks);
6631                                 }
6632         }
6633
6634         return 0;
6635 }
6636
6637 /*
6638 * This function set up the firmware to support QoS. It sends
6639 * IPW_CMD_QOS_PARAMETERS and IPW_CMD_WME_INFO
6640 */
6641 static int ipw_qos_activate(struct ipw_priv *priv,
6642                             struct ieee80211_qos_data *qos_network_data)
6643 {
6644         int err;
6645         struct ieee80211_qos_parameters qos_parameters[QOS_QOS_SETS];
6646         struct ieee80211_qos_parameters *active_one = NULL;
6647         u32 size = sizeof(struct ieee80211_qos_parameters);
6648         u32 burst_duration;
6649         int i;
6650         u8 type;
6651
6652         type = ipw_qos_current_mode(priv);
6653
6654         active_one = &(qos_parameters[QOS_PARAM_SET_DEF_CCK]);
6655         memcpy(active_one, priv->qos_data.def_qos_parm_CCK, size);
6656         active_one = &(qos_parameters[QOS_PARAM_SET_DEF_OFDM]);
6657         memcpy(active_one, priv->qos_data.def_qos_parm_OFDM, size);
6658
6659         if (qos_network_data == NULL) {
6660                 if (type == IEEE_B) {
6661                         IPW_DEBUG_QOS("QoS activate network mode %d\n", type);
6662                         active_one = &def_parameters_CCK;
6663                 } else
6664                         active_one = &def_parameters_OFDM;
6665
6666                 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6667                 burst_duration = ipw_qos_get_burst_duration(priv);
6668                 for (i = 0; i < QOS_QUEUE_NUM; i++)
6669                         qos_parameters[QOS_PARAM_SET_ACTIVE].tx_op_limit[i] =
6670                             (u16) burst_duration;
6671         } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6672                 if (type == IEEE_B) {
6673                         IPW_DEBUG_QOS("QoS activate IBSS nework mode %d\n",
6674                                       type);
6675                         if (priv->qos_data.qos_enable == 0)
6676                                 active_one = &def_parameters_CCK;
6677                         else
6678                                 active_one = priv->qos_data.def_qos_parm_CCK;
6679                 } else {
6680                         if (priv->qos_data.qos_enable == 0)
6681                                 active_one = &def_parameters_OFDM;
6682                         else
6683                                 active_one = priv->qos_data.def_qos_parm_OFDM;
6684                 }
6685                 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6686         } else {
6687                 unsigned long flags;
6688                 int active;
6689
6690                 spin_lock_irqsave(&priv->ieee->lock, flags);
6691                 active_one = &(qos_network_data->parameters);
6692                 qos_network_data->old_param_count =
6693                     qos_network_data->param_count;
6694                 memcpy(&qos_parameters[QOS_PARAM_SET_ACTIVE], active_one, size);
6695                 active = qos_network_data->supported;
6696                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
6697
6698                 if (active == 0) {
6699                         burst_duration = ipw_qos_get_burst_duration(priv);
6700                         for (i = 0; i < QOS_QUEUE_NUM; i++)
6701                                 qos_parameters[QOS_PARAM_SET_ACTIVE].
6702                                     tx_op_limit[i] = (u16) burst_duration;
6703                 }
6704         }
6705
6706         IPW_DEBUG_QOS("QoS sending IPW_CMD_QOS_PARAMETERS\n");
6707         err = ipw_send_qos_params_command(priv,
6708                                           (struct ieee80211_qos_parameters *)
6709                                           &(qos_parameters[0]));
6710         if (err)
6711                 IPW_DEBUG_QOS("QoS IPW_CMD_QOS_PARAMETERS failed\n");
6712
6713         return err;
6714 }
6715
6716 /*
6717 * send IPW_CMD_WME_INFO to the firmware
6718 */
6719 static int ipw_qos_set_info_element(struct ipw_priv *priv)
6720 {
6721         int ret = 0;
6722         struct ieee80211_qos_information_element qos_info;
6723
6724         if (priv == NULL)
6725                 return -1;
6726
6727         qos_info.elementID = QOS_ELEMENT_ID;
6728         qos_info.length = sizeof(struct ieee80211_qos_information_element) - 2;
6729
6730         qos_info.version = QOS_VERSION_1;
6731         qos_info.ac_info = 0;
6732
6733         memcpy(qos_info.qui, qos_oui, QOS_OUI_LEN);
6734         qos_info.qui_type = QOS_OUI_TYPE;
6735         qos_info.qui_subtype = QOS_OUI_INFO_SUB_TYPE;
6736
6737         ret = ipw_send_qos_info_command(priv, &qos_info);
6738         if (ret != 0) {
6739                 IPW_DEBUG_QOS("QoS error calling ipw_send_qos_info_command\n");
6740         }
6741         return ret;
6742 }
6743
6744 /*
6745 * Set the QoS parameter with the association request structure
6746 */
6747 static int ipw_qos_association(struct ipw_priv *priv,
6748                                struct ieee80211_network *network)
6749 {
6750         int err = 0;
6751         struct ieee80211_qos_data *qos_data = NULL;
6752         struct ieee80211_qos_data ibss_data = {
6753                 .supported = 1,
6754                 .active = 1,
6755         };
6756
6757         switch (priv->ieee->iw_mode) {
6758         case IW_MODE_ADHOC:
6759                 if (!(network->capability & WLAN_CAPABILITY_IBSS))
6760                         BUG();
6761
6762                 qos_data = &ibss_data;
6763                 break;
6764
6765         case IW_MODE_INFRA:
6766                 qos_data = &network->qos_data;
6767                 break;
6768
6769         default:
6770                 BUG();
6771                 break;
6772         }
6773
6774         err = ipw_qos_activate(priv, qos_data);
6775         if (err) {
6776                 priv->assoc_request.policy_support &= ~HC_QOS_SUPPORT_ASSOC;
6777                 return err;
6778         }
6779
6780         if (priv->qos_data.qos_enable && qos_data->supported) {
6781                 IPW_DEBUG_QOS("QoS will be enabled for this association\n");
6782                 priv->assoc_request.policy_support |= HC_QOS_SUPPORT_ASSOC;
6783                 return ipw_qos_set_info_element(priv);
6784         }
6785
6786         return 0;
6787 }
6788
6789 /*
6790 * handling the beaconing responces. if we get different QoS setting
6791 * of the network from the the associated setting adjust the QoS
6792 * setting
6793 */
6794 static int ipw_qos_association_resp(struct ipw_priv *priv,
6795                                     struct ieee80211_network *network)
6796 {
6797         int ret = 0;
6798         unsigned long flags;
6799         u32 size = sizeof(struct ieee80211_qos_parameters);
6800         int set_qos_param = 0;
6801
6802         if ((priv == NULL) || (network == NULL) ||
6803             (priv->assoc_network == NULL))
6804                 return ret;
6805
6806         if (!(priv->status & STATUS_ASSOCIATED))
6807                 return ret;
6808
6809         if ((priv->ieee->iw_mode != IW_MODE_INFRA))
6810                 return ret;
6811
6812         spin_lock_irqsave(&priv->ieee->lock, flags);
6813         if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
6814                 memcpy(&priv->assoc_network->qos_data, &network->qos_data,
6815                        sizeof(struct ieee80211_qos_data));
6816                 priv->assoc_network->qos_data.active = 1;
6817                 if ((network->qos_data.old_param_count !=
6818                      network->qos_data.param_count)) {
6819                         set_qos_param = 1;
6820                         network->qos_data.old_param_count =
6821                             network->qos_data.param_count;
6822                 }
6823
6824         } else {
6825                 if ((network->mode == IEEE_B) || (priv->ieee->mode == IEEE_B))
6826                         memcpy(&priv->assoc_network->qos_data.parameters,
6827                                &def_parameters_CCK, size);
6828                 else
6829                         memcpy(&priv->assoc_network->qos_data.parameters,
6830                                &def_parameters_OFDM, size);
6831                 priv->assoc_network->qos_data.active = 0;
6832                 priv->assoc_network->qos_data.supported = 0;
6833                 set_qos_param = 1;
6834         }
6835
6836         spin_unlock_irqrestore(&priv->ieee->lock, flags);
6837
6838         if (set_qos_param == 1)
6839                 schedule_work(&priv->qos_activate);
6840
6841         return ret;
6842 }
6843
6844 static u32 ipw_qos_get_burst_duration(struct ipw_priv *priv)
6845 {
6846         u32 ret = 0;
6847
6848         if ((priv == NULL))
6849                 return 0;
6850
6851         if (!(priv->ieee->modulation & IEEE80211_OFDM_MODULATION))
6852                 ret = priv->qos_data.burst_duration_CCK;
6853         else
6854                 ret = priv->qos_data.burst_duration_OFDM;
6855
6856         return ret;
6857 }
6858
6859 /*
6860 * Initialize the setting of QoS global
6861 */
6862 static void ipw_qos_init(struct ipw_priv *priv, int enable,
6863                          int burst_enable, u32 burst_duration_CCK,
6864                          u32 burst_duration_OFDM)
6865 {
6866         priv->qos_data.qos_enable = enable;
6867
6868         if (priv->qos_data.qos_enable) {
6869                 priv->qos_data.def_qos_parm_CCK = &def_qos_parameters_CCK;
6870                 priv->qos_data.def_qos_parm_OFDM = &def_qos_parameters_OFDM;
6871                 IPW_DEBUG_QOS("QoS is enabled\n");
6872         } else {
6873                 priv->qos_data.def_qos_parm_CCK = &def_parameters_CCK;
6874                 priv->qos_data.def_qos_parm_OFDM = &def_parameters_OFDM;
6875                 IPW_DEBUG_QOS("QoS is not enabled\n");
6876         }
6877
6878         priv->qos_data.burst_enable = burst_enable;
6879
6880         if (burst_enable) {
6881                 priv->qos_data.burst_duration_CCK = burst_duration_CCK;
6882                 priv->qos_data.burst_duration_OFDM = burst_duration_OFDM;
6883         } else {
6884                 priv->qos_data.burst_duration_CCK = 0;
6885                 priv->qos_data.burst_duration_OFDM = 0;
6886         }
6887 }
6888
6889 /*
6890 * map the packet priority to the right TX Queue
6891 */
6892 static int ipw_get_tx_queue_number(struct ipw_priv *priv, u16 priority)
6893 {
6894         if (priority > 7 || !priv->qos_data.qos_enable)
6895                 priority = 0;
6896
6897         return from_priority_to_tx_queue[priority] - 1;
6898 }
6899
6900 /*
6901 * add QoS parameter to the TX command
6902 */
6903 static int ipw_qos_set_tx_queue_command(struct ipw_priv *priv,
6904                                         u16 priority,
6905                                         struct tfd_data *tfd, u8 unicast)
6906 {
6907         int ret = 0;
6908         int tx_queue_id = 0;
6909         struct ieee80211_qos_data *qos_data = NULL;
6910         int active, supported;
6911         unsigned long flags;
6912
6913         if (!(priv->status & STATUS_ASSOCIATED))
6914                 return 0;
6915
6916         qos_data = &priv->assoc_network->qos_data;
6917
6918         spin_lock_irqsave(&priv->ieee->lock, flags);
6919
6920         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
6921                 if (unicast == 0)
6922                         qos_data->active = 0;
6923                 else
6924                         qos_data->active = qos_data->supported;
6925         }
6926
6927         active = qos_data->active;
6928         supported = qos_data->supported;
6929
6930         spin_unlock_irqrestore(&priv->ieee->lock, flags);
6931
6932         IPW_DEBUG_QOS("QoS  %d network is QoS active %d  supported %d  "
6933                       "unicast %d\n",
6934                       priv->qos_data.qos_enable, active, supported, unicast);
6935         if (active && priv->qos_data.qos_enable) {
6936                 ret = from_priority_to_tx_queue[priority];
6937                 tx_queue_id = ret - 1;
6938                 IPW_DEBUG_QOS("QoS packet priority is %d \n", priority);
6939                 if (priority <= 7) {
6940                         tfd->tx_flags_ext |= DCT_FLAG_EXT_QOS_ENABLED;
6941                         tfd->tfd.tfd_26.mchdr.qos_ctrl = priority;
6942                         tfd->tfd.tfd_26.mchdr.frame_ctl |=
6943                             IEEE80211_STYPE_QOS_DATA;
6944
6945                         if (priv->qos_data.qos_no_ack_mask &
6946                             (1UL << tx_queue_id)) {
6947                                 tfd->tx_flags &= ~DCT_FLAG_ACK_REQD;
6948                                 tfd->tfd.tfd_26.mchdr.qos_ctrl |=
6949                                     CTRL_QOS_NO_ACK;
6950                         }
6951                 }
6952         }
6953
6954         return ret;
6955 }
6956
6957 /*
6958 * background support to run QoS activate functionality
6959 */
6960 static void ipw_bg_qos_activate(void *data)
6961 {
6962         struct ipw_priv *priv = data;
6963
6964         if (priv == NULL)
6965                 return;
6966
6967         down(&priv->sem);
6968
6969         if (priv->status & STATUS_ASSOCIATED)
6970                 ipw_qos_activate(priv, &(priv->assoc_network->qos_data));
6971
6972         up(&priv->sem);
6973 }
6974
6975 static int ipw_handle_probe_response(struct net_device *dev,
6976                                      struct ieee80211_probe_response *resp,
6977                                      struct ieee80211_network *network)
6978 {
6979         struct ipw_priv *priv = ieee80211_priv(dev);
6980         int active_network = ((priv->status & STATUS_ASSOCIATED) &&
6981                               (network == priv->assoc_network));
6982
6983         ipw_qos_handle_probe_response(priv, active_network, network);
6984
6985         return 0;
6986 }
6987
6988 static int ipw_handle_beacon(struct net_device *dev,
6989                              struct ieee80211_beacon *resp,
6990                              struct ieee80211_network *network)
6991 {
6992         struct ipw_priv *priv = ieee80211_priv(dev);
6993         int active_network = ((priv->status & STATUS_ASSOCIATED) &&
6994                               (network == priv->assoc_network));
6995
6996         ipw_qos_handle_probe_response(priv, active_network, network);
6997
6998         return 0;
6999 }
7000
7001 static int ipw_handle_assoc_response(struct net_device *dev,
7002                                      struct ieee80211_assoc_response *resp,
7003                                      struct ieee80211_network *network)
7004 {
7005         struct ipw_priv *priv = ieee80211_priv(dev);
7006         ipw_qos_association_resp(priv, network);
7007         return 0;
7008 }
7009
7010 static int ipw_send_qos_params_command(struct ipw_priv *priv, struct ieee80211_qos_parameters
7011                                        *qos_param)
7012 {
7013         struct host_cmd cmd = {
7014                 .cmd = IPW_CMD_QOS_PARAMETERS,
7015                 .len = (sizeof(struct ieee80211_qos_parameters) * 3)
7016         };
7017
7018         memcpy(cmd.param, qos_param, sizeof(*qos_param) * 3);
7019         return ipw_send_cmd(priv, &cmd);
7020 }
7021
7022 static int ipw_send_qos_info_command(struct ipw_priv *priv, struct ieee80211_qos_information_element
7023                                      *qos_param)
7024 {
7025         struct host_cmd cmd = {
7026                 .cmd = IPW_CMD_WME_INFO,
7027                 .len = sizeof(*qos_param)
7028         };
7029
7030         memcpy(cmd.param, qos_param, sizeof(*qos_param));
7031         return ipw_send_cmd(priv, &cmd);
7032 }
7033
7034 #endif                          /* CONFIG_IPW_QOS */
7035
7036 static int ipw_associate_network(struct ipw_priv *priv,
7037                                  struct ieee80211_network *network,
7038                                  struct ipw_supported_rates *rates, int roaming)
7039 {
7040         int err;
7041
7042         if (priv->config & CFG_FIXED_RATE)
7043                 ipw_set_fixed_rate(priv, network->mode);
7044
7045         if (!(priv->config & CFG_STATIC_ESSID)) {
7046                 priv->essid_len = min(network->ssid_len,
7047                                       (u8) IW_ESSID_MAX_SIZE);
7048                 memcpy(priv->essid, network->ssid, priv->essid_len);
7049         }
7050
7051         network->last_associate = jiffies;
7052
7053         memset(&priv->assoc_request, 0, sizeof(priv->assoc_request));
7054         priv->assoc_request.channel = network->channel;
7055         if ((priv->capability & CAP_PRIVACY_ON) &&
7056             (priv->capability & CAP_SHARED_KEY)) {
7057                 priv->assoc_request.auth_type = AUTH_SHARED_KEY;
7058                 priv->assoc_request.auth_key = priv->ieee->sec.active_key;
7059
7060                 if ((priv->capability & CAP_PRIVACY_ON) &&
7061                     (priv->ieee->sec.level == SEC_LEVEL_1) &&
7062                     !(priv->ieee->host_encrypt || priv->ieee->host_decrypt))
7063                         ipw_send_wep_keys(priv, DCW_WEP_KEY_SEC_TYPE_WEP);
7064         } else {
7065                 priv->assoc_request.auth_type = AUTH_OPEN;
7066                 priv->assoc_request.auth_key = 0;
7067         }
7068
7069         if (priv->ieee->wpa_ie_len) {
7070                 priv->assoc_request.policy_support = 0x02;      /* RSN active */
7071                 ipw_set_rsn_capa(priv, priv->ieee->wpa_ie,
7072                                  priv->ieee->wpa_ie_len);
7073         }
7074
7075         /*
7076          * It is valid for our ieee device to support multiple modes, but
7077          * when it comes to associating to a given network we have to choose
7078          * just one mode.
7079          */
7080         if (network->mode & priv->ieee->mode & IEEE_A)
7081                 priv->assoc_request.ieee_mode = IPW_A_MODE;
7082         else if (network->mode & priv->ieee->mode & IEEE_G)
7083                 priv->assoc_request.ieee_mode = IPW_G_MODE;
7084         else if (network->mode & priv->ieee->mode & IEEE_B)
7085                 priv->assoc_request.ieee_mode = IPW_B_MODE;
7086
7087         priv->assoc_request.capability = network->capability;
7088         if ((network->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
7089             && !(priv->config & CFG_PREAMBLE_LONG)) {
7090                 priv->assoc_request.preamble_length = DCT_FLAG_SHORT_PREAMBLE;
7091         } else {
7092                 priv->assoc_request.preamble_length = DCT_FLAG_LONG_PREAMBLE;
7093
7094                 /* Clear the short preamble if we won't be supporting it */
7095                 priv->assoc_request.capability &=
7096                     ~WLAN_CAPABILITY_SHORT_PREAMBLE;
7097         }
7098
7099         /* Clear capability bits that aren't used in Ad Hoc */
7100         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7101                 priv->assoc_request.capability &=
7102                     ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
7103
7104         IPW_DEBUG_ASSOC("%sssocation attempt: '%s', channel %d, "
7105                         "802.11%c [%d], %s[:%s], enc=%s%s%s%c%c\n",
7106                         roaming ? "Rea" : "A",
7107                         escape_essid(priv->essid, priv->essid_len),
7108                         network->channel,
7109                         ipw_modes[priv->assoc_request.ieee_mode],
7110                         rates->num_rates,
7111                         (priv->assoc_request.preamble_length ==
7112                          DCT_FLAG_LONG_PREAMBLE) ? "long" : "short",
7113                         network->capability &
7114                         WLAN_CAPABILITY_SHORT_PREAMBLE ? "short" : "long",
7115                         priv->capability & CAP_PRIVACY_ON ? "on " : "off",
7116                         priv->capability & CAP_PRIVACY_ON ?
7117                         (priv->capability & CAP_SHARED_KEY ? "(shared)" :
7118                          "(open)") : "",
7119                         priv->capability & CAP_PRIVACY_ON ? " key=" : "",
7120                         priv->capability & CAP_PRIVACY_ON ?
7121                         '1' + priv->ieee->sec.active_key : '.',
7122                         priv->capability & CAP_PRIVACY_ON ? '.' : ' ');
7123
7124         priv->assoc_request.beacon_interval = network->beacon_interval;
7125         if ((priv->ieee->iw_mode == IW_MODE_ADHOC) &&
7126             (network->time_stamp[0] == 0) && (network->time_stamp[1] == 0)) {
7127                 priv->assoc_request.assoc_type = HC_IBSS_START;
7128                 priv->assoc_request.assoc_tsf_msw = 0;
7129                 priv->assoc_request.assoc_tsf_lsw = 0;
7130         } else {
7131                 if (unlikely(roaming))
7132                         priv->assoc_request.assoc_type = HC_REASSOCIATE;
7133                 else
7134                         priv->assoc_request.assoc_type = HC_ASSOCIATE;
7135                 priv->assoc_request.assoc_tsf_msw = network->time_stamp[1];
7136                 priv->assoc_request.assoc_tsf_lsw = network->time_stamp[0];
7137         }
7138
7139         memcpy(priv->assoc_request.bssid, network->bssid, ETH_ALEN);
7140
7141         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7142                 memset(&priv->assoc_request.dest, 0xFF, ETH_ALEN);
7143                 priv->assoc_request.atim_window = network->atim_window;
7144         } else {
7145                 memcpy(priv->assoc_request.dest, network->bssid, ETH_ALEN);
7146                 priv->assoc_request.atim_window = 0;
7147         }
7148
7149         priv->assoc_request.listen_interval = network->listen_interval;
7150
7151         err = ipw_send_ssid(priv, priv->essid, priv->essid_len);
7152         if (err) {
7153                 IPW_DEBUG_HC("Attempt to send SSID command failed.\n");
7154                 return err;
7155         }
7156
7157         rates->ieee_mode = priv->assoc_request.ieee_mode;
7158         rates->purpose = IPW_RATE_CONNECT;
7159         ipw_send_supported_rates(priv, rates);
7160
7161         if (priv->assoc_request.ieee_mode == IPW_G_MODE)
7162                 priv->sys_config.dot11g_auto_detection = 1;
7163         else
7164                 priv->sys_config.dot11g_auto_detection = 0;
7165
7166         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
7167                 priv->sys_config.answer_broadcast_ssid_probe = 1;
7168         else
7169                 priv->sys_config.answer_broadcast_ssid_probe = 0;
7170
7171         err = ipw_send_system_config(priv, &priv->sys_config);
7172         if (err) {
7173                 IPW_DEBUG_HC("Attempt to send sys config command failed.\n");
7174                 return err;
7175         }
7176
7177         IPW_DEBUG_ASSOC("Association sensitivity: %d\n", network->stats.rssi);
7178         err = ipw_set_sensitivity(priv, network->stats.rssi + IPW_RSSI_TO_DBM);
7179         if (err) {
7180                 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7181                 return err;
7182         }
7183
7184         /*
7185          * If preemption is enabled, it is possible for the association
7186          * to complete before we return from ipw_send_associate.  Therefore
7187          * we have to be sure and update our priviate data first.
7188          */
7189         priv->channel = network->channel;
7190         memcpy(priv->bssid, network->bssid, ETH_ALEN);
7191         priv->status |= STATUS_ASSOCIATING;
7192         priv->status &= ~STATUS_SECURITY_UPDATED;
7193
7194         priv->assoc_network = network;
7195
7196 #ifdef CONFIG_IPW_QOS
7197         ipw_qos_association(priv, network);
7198 #endif
7199
7200         err = ipw_send_associate(priv, &priv->assoc_request);
7201         if (err) {
7202                 IPW_DEBUG_HC("Attempt to send associate command failed.\n");
7203                 return err;
7204         }
7205
7206         IPW_DEBUG(IPW_DL_STATE, "associating: '%s' " MAC_FMT " \n",
7207                   escape_essid(priv->essid, priv->essid_len),
7208                   MAC_ARG(priv->bssid));
7209
7210         return 0;
7211 }
7212
7213 static void ipw_roam(void *data)
7214 {
7215         struct ipw_priv *priv = data;
7216         struct ieee80211_network *network = NULL;
7217         struct ipw_network_match match = {
7218                 .network = priv->assoc_network
7219         };
7220
7221         /* The roaming process is as follows:
7222          *
7223          * 1.  Missed beacon threshold triggers the roaming process by
7224          *     setting the status ROAM bit and requesting a scan.
7225          * 2.  When the scan completes, it schedules the ROAM work
7226          * 3.  The ROAM work looks at all of the known networks for one that
7227          *     is a better network than the currently associated.  If none
7228          *     found, the ROAM process is over (ROAM bit cleared)
7229          * 4.  If a better network is found, a disassociation request is
7230          *     sent.
7231          * 5.  When the disassociation completes, the roam work is again
7232          *     scheduled.  The second time through, the driver is no longer
7233          *     associated, and the newly selected network is sent an
7234          *     association request.
7235          * 6.  At this point ,the roaming process is complete and the ROAM
7236          *     status bit is cleared.
7237          */
7238
7239         /* If we are no longer associated, and the roaming bit is no longer
7240          * set, then we are not actively roaming, so just return */
7241         if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ROAMING)))
7242                 return;
7243
7244         if (priv->status & STATUS_ASSOCIATED) {
7245                 /* First pass through ROAM process -- look for a better
7246                  * network */
7247                 unsigned long flags;
7248                 u8 rssi = priv->assoc_network->stats.rssi;
7249                 priv->assoc_network->stats.rssi = -128;
7250                 spin_lock_irqsave(&priv->ieee->lock, flags);
7251                 list_for_each_entry(network, &priv->ieee->network_list, list) {
7252                         if (network != priv->assoc_network)
7253                                 ipw_best_network(priv, &match, network, 1);
7254                 }
7255                 spin_unlock_irqrestore(&priv->ieee->lock, flags);
7256                 priv->assoc_network->stats.rssi = rssi;
7257
7258                 if (match.network == priv->assoc_network) {
7259                         IPW_DEBUG_ASSOC("No better APs in this network to "
7260                                         "roam to.\n");
7261                         priv->status &= ~STATUS_ROAMING;
7262                         ipw_debug_config(priv);
7263                         return;
7264                 }
7265
7266                 ipw_send_disassociate(priv, 1);
7267                 priv->assoc_network = match.network;
7268
7269                 return;
7270         }
7271
7272         /* Second pass through ROAM process -- request association */
7273         ipw_compatible_rates(priv, priv->assoc_network, &match.rates);
7274         ipw_associate_network(priv, priv->assoc_network, &match.rates, 1);
7275         priv->status &= ~STATUS_ROAMING;
7276 }
7277
7278 static void ipw_bg_roam(void *data)
7279 {
7280         struct ipw_priv *priv = data;
7281         down(&priv->sem);
7282         ipw_roam(data);
7283         up(&priv->sem);
7284 }
7285
7286 static int ipw_associate(void *data)
7287 {
7288         struct ipw_priv *priv = data;
7289
7290         struct ieee80211_network *network = NULL;
7291         struct ipw_network_match match = {
7292                 .network = NULL
7293         };
7294         struct ipw_supported_rates *rates;
7295         struct list_head *element;
7296         unsigned long flags;
7297
7298         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7299                 IPW_DEBUG_ASSOC("Not attempting association (monitor mode)\n");
7300                 return 0;
7301         }
7302
7303         if (priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
7304                 IPW_DEBUG_ASSOC("Not attempting association (already in "
7305                                 "progress)\n");
7306                 return 0;
7307         }
7308
7309         if (priv->status & STATUS_DISASSOCIATING) {
7310                 IPW_DEBUG_ASSOC("Not attempting association (in "
7311                                 "disassociating)\n ");
7312                 queue_work(priv->workqueue, &priv->associate);
7313                 return 0;
7314         }
7315
7316         if (!ipw_is_init(priv) || (priv->status & STATUS_SCANNING)) {
7317                 IPW_DEBUG_ASSOC("Not attempting association (scanning or not "
7318                                 "initialized)\n");
7319                 return 0;
7320         }
7321
7322         if (!(priv->config & CFG_ASSOCIATE) &&
7323             !(priv->config & (CFG_STATIC_ESSID |
7324                               CFG_STATIC_CHANNEL | CFG_STATIC_BSSID))) {
7325                 IPW_DEBUG_ASSOC("Not attempting association (associate=0)\n");
7326                 return 0;
7327         }
7328
7329         /* Protect our use of the network_list */
7330         spin_lock_irqsave(&priv->ieee->lock, flags);
7331         list_for_each_entry(network, &priv->ieee->network_list, list)
7332             ipw_best_network(priv, &match, network, 0);
7333
7334         network = match.network;
7335         rates = &match.rates;
7336
7337         if (network == NULL &&
7338             priv->ieee->iw_mode == IW_MODE_ADHOC &&
7339             priv->config & CFG_ADHOC_CREATE &&
7340             priv->config & CFG_STATIC_ESSID &&
7341             priv->config & CFG_STATIC_CHANNEL &&
7342             !list_empty(&priv->ieee->network_free_list)) {
7343                 element = priv->ieee->network_free_list.next;
7344                 network = list_entry(element, struct ieee80211_network, list);
7345                 ipw_adhoc_create(priv, network);
7346                 rates = &priv->rates;
7347                 list_del(element);
7348                 list_add_tail(&network->list, &priv->ieee->network_list);
7349         }
7350         spin_unlock_irqrestore(&priv->ieee->lock, flags);
7351
7352         /* If we reached the end of the list, then we don't have any valid
7353          * matching APs */
7354         if (!network) {
7355                 ipw_debug_config(priv);
7356
7357                 if (!(priv->status & STATUS_SCANNING)) {
7358                         if (!(priv->config & CFG_SPEED_SCAN))
7359                                 queue_delayed_work(priv->workqueue,
7360                                                    &priv->request_scan,
7361                                                    SCAN_INTERVAL);
7362                         else
7363                                 queue_work(priv->workqueue,
7364                                            &priv->request_scan);
7365                 }
7366
7367                 return 0;
7368         }
7369
7370         ipw_associate_network(priv, network, rates, 0);
7371
7372         return 1;
7373 }
7374
7375 static void ipw_bg_associate(void *data)
7376 {
7377         struct ipw_priv *priv = data;
7378         down(&priv->sem);
7379         ipw_associate(data);
7380         up(&priv->sem);
7381 }
7382
7383 static void ipw_rebuild_decrypted_skb(struct ipw_priv *priv,
7384                                       struct sk_buff *skb)
7385 {
7386         struct ieee80211_hdr *hdr;
7387         u16 fc;
7388
7389         hdr = (struct ieee80211_hdr *)skb->data;
7390         fc = le16_to_cpu(hdr->frame_ctl);
7391         if (!(fc & IEEE80211_FCTL_PROTECTED))
7392                 return;
7393
7394         fc &= ~IEEE80211_FCTL_PROTECTED;
7395         hdr->frame_ctl = cpu_to_le16(fc);
7396         switch (priv->ieee->sec.level) {
7397         case SEC_LEVEL_3:
7398                 /* Remove CCMP HDR */
7399                 memmove(skb->data + IEEE80211_3ADDR_LEN,
7400                         skb->data + IEEE80211_3ADDR_LEN + 8,
7401                         skb->len - IEEE80211_3ADDR_LEN - 8);
7402                 skb_trim(skb, skb->len - 16);   /* CCMP_HDR_LEN + CCMP_MIC_LEN */
7403                 break;
7404         case SEC_LEVEL_2:
7405                 break;
7406         case SEC_LEVEL_1:
7407                 /* Remove IV */
7408                 memmove(skb->data + IEEE80211_3ADDR_LEN,
7409                         skb->data + IEEE80211_3ADDR_LEN + 4,
7410                         skb->len - IEEE80211_3ADDR_LEN - 4);
7411                 skb_trim(skb, skb->len - 8);    /* IV + ICV */
7412                 break;
7413         case SEC_LEVEL_0:
7414                 break;
7415         default:
7416                 printk(KERN_ERR "Unknow security level %d\n",
7417                        priv->ieee->sec.level);
7418                 break;
7419         }
7420 }
7421
7422 static void ipw_handle_data_packet(struct ipw_priv *priv,
7423                                    struct ipw_rx_mem_buffer *rxb,
7424                                    struct ieee80211_rx_stats *stats)
7425 {
7426         struct ieee80211_hdr_4addr *hdr;
7427         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7428
7429         /* We received data from the HW, so stop the watchdog */
7430         priv->net_dev->trans_start = jiffies;
7431
7432         /* We only process data packets if the
7433          * interface is open */
7434         if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7435                      skb_tailroom(rxb->skb))) {
7436                 priv->ieee->stats.rx_errors++;
7437                 priv->wstats.discard.misc++;
7438                 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7439                 return;
7440         } else if (unlikely(!netif_running(priv->net_dev))) {
7441                 priv->ieee->stats.rx_dropped++;
7442                 priv->wstats.discard.misc++;
7443                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7444                 return;
7445         }
7446
7447         /* Advance skb->data to the start of the actual payload */
7448         skb_reserve(rxb->skb, offsetof(struct ipw_rx_packet, u.frame.data));
7449
7450         /* Set the size of the skb to the size of the frame */
7451         skb_put(rxb->skb, le16_to_cpu(pkt->u.frame.length));
7452
7453         IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7454
7455         /* HW decrypt will not clear the WEP bit, MIC, PN, etc. */
7456         hdr = (struct ieee80211_hdr_4addr *)rxb->skb->data;
7457         if (priv->ieee->iw_mode != IW_MODE_MONITOR &&
7458             (is_multicast_ether_addr(hdr->addr1) ?
7459              !priv->ieee->host_mc_decrypt : !priv->ieee->host_decrypt))
7460                 ipw_rebuild_decrypted_skb(priv, rxb->skb);
7461
7462         if (!ieee80211_rx(priv->ieee, rxb->skb, stats))
7463                 priv->ieee->stats.rx_errors++;
7464         else {                  /* ieee80211_rx succeeded, so it now owns the SKB */
7465                 rxb->skb = NULL;
7466                 __ipw_led_activity_on(priv);
7467         }
7468 }
7469
7470 #ifdef CONFIG_IEEE80211_RADIOTAP
7471 static void ipw_handle_data_packet_monitor(struct ipw_priv *priv,
7472                                            struct ipw_rx_mem_buffer *rxb,
7473                                            struct ieee80211_rx_stats *stats)
7474 {
7475         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)rxb->skb->data;
7476         struct ipw_rx_frame *frame = &pkt->u.frame;
7477
7478         /* initial pull of some data */
7479         u16 received_channel = frame->received_channel;
7480         u8 antennaAndPhy = frame->antennaAndPhy;
7481         s8 antsignal = frame->rssi_dbm - IPW_RSSI_TO_DBM;       /* call it signed anyhow */
7482         u16 pktrate = frame->rate;
7483
7484         /* Magic struct that slots into the radiotap header -- no reason
7485          * to build this manually element by element, we can write it much
7486          * more efficiently than we can parse it. ORDER MATTERS HERE */
7487         struct ipw_rt_hdr {
7488                 struct ieee80211_radiotap_header rt_hdr;
7489                 u8 rt_flags;    /* radiotap packet flags */
7490                 u8 rt_rate;     /* rate in 500kb/s */
7491                 u16 rt_channel; /* channel in mhz */
7492                 u16 rt_chbitmask;       /* channel bitfield */
7493                 s8 rt_dbmsignal;        /* signal in dbM, kluged to signed */
7494                 u8 rt_antenna;  /* antenna number */
7495         } *ipw_rt;
7496
7497         short len = le16_to_cpu(pkt->u.frame.length);
7498
7499         /* We received data from the HW, so stop the watchdog */
7500         priv->net_dev->trans_start = jiffies;
7501
7502         /* We only process data packets if the
7503          * interface is open */
7504         if (unlikely((le16_to_cpu(pkt->u.frame.length) + IPW_RX_FRAME_SIZE) >
7505                      skb_tailroom(rxb->skb))) {
7506                 priv->ieee->stats.rx_errors++;
7507                 priv->wstats.discard.misc++;
7508                 IPW_DEBUG_DROP("Corruption detected! Oh no!\n");
7509                 return;
7510         } else if (unlikely(!netif_running(priv->net_dev))) {
7511                 priv->ieee->stats.rx_dropped++;
7512                 priv->wstats.discard.misc++;
7513                 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
7514                 return;
7515         }
7516
7517         /* Libpcap 0.9.3+ can handle variable length radiotap, so we'll use
7518          * that now */
7519         if (len > IPW_RX_BUF_SIZE - sizeof(struct ipw_rt_hdr)) {
7520                 /* FIXME: Should alloc bigger skb instead */
7521                 priv->ieee->stats.rx_dropped++;
7522                 priv->wstats.discard.misc++;
7523                 IPW_DEBUG_DROP("Dropping too large packet in monitor\n");
7524                 return;
7525         }
7526
7527         /* copy the frame itself */
7528         memmove(rxb->skb->data + sizeof(struct ipw_rt_hdr),
7529                 rxb->skb->data + IPW_RX_FRAME_SIZE, len);
7530
7531         /* Zero the radiotap static buffer  ...  We only need to zero the bytes NOT
7532          * part of our real header, saves a little time.
7533          *
7534          * No longer necessary since we fill in all our data.  Purge before merging
7535          * patch officially.
7536          * memset(rxb->skb->data + sizeof(struct ipw_rt_hdr), 0,
7537          *        IEEE80211_RADIOTAP_HDRLEN - sizeof(struct ipw_rt_hdr));
7538          */
7539
7540         ipw_rt = (struct ipw_rt_hdr *)rxb->skb->data;
7541
7542         ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
7543         ipw_rt->rt_hdr.it_pad = 0;      /* always good to zero */
7544         ipw_rt->rt_hdr.it_len = sizeof(struct ipw_rt_hdr);      /* total header+data */
7545
7546         /* Big bitfield of all the fields we provide in radiotap */
7547         ipw_rt->rt_hdr.it_present =
7548             ((1 << IEEE80211_RADIOTAP_FLAGS) |
7549              (1 << IEEE80211_RADIOTAP_RATE) |
7550              (1 << IEEE80211_RADIOTAP_CHANNEL) |
7551              (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
7552              (1 << IEEE80211_RADIOTAP_ANTENNA));
7553
7554         /* Zero the flags, we'll add to them as we go */
7555         ipw_rt->rt_flags = 0;
7556
7557         /* Convert signal to DBM */
7558         ipw_rt->rt_dbmsignal = antsignal;
7559
7560         /* Convert the channel data and set the flags */
7561         ipw_rt->rt_channel = cpu_to_le16(ieee80211chan2mhz(received_channel));
7562         if (received_channel > 14) {    /* 802.11a */
7563                 ipw_rt->rt_chbitmask =
7564                     cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
7565         } else if (antennaAndPhy & 32) {        /* 802.11b */
7566                 ipw_rt->rt_chbitmask =
7567                     cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
7568         } else {                /* 802.11g */
7569                 ipw_rt->rt_chbitmask =
7570                     (IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ);
7571         }
7572
7573         /* set the rate in multiples of 500k/s */
7574         switch (pktrate) {
7575         case IPW_TX_RATE_1MB:
7576                 ipw_rt->rt_rate = 2;
7577                 break;
7578         case IPW_TX_RATE_2MB:
7579                 ipw_rt->rt_rate = 4;
7580                 break;
7581         case IPW_TX_RATE_5MB:
7582                 ipw_rt->rt_rate = 10;
7583                 break;
7584         case IPW_TX_RATE_6MB:
7585                 ipw_rt->rt_rate = 12;
7586                 break;
7587         case IPW_TX_RATE_9MB:
7588                 ipw_rt->rt_rate = 18;
7589                 break;
7590         case IPW_TX_RATE_11MB:
7591                 ipw_rt->rt_rate = 22;
7592                 break;
7593         case IPW_TX_RATE_12MB:
7594                 ipw_rt->rt_rate = 24;
7595                 break;
7596         case IPW_TX_RATE_18MB:
7597                 ipw_rt->rt_rate = 36;
7598                 break;
7599         case IPW_TX_RATE_24MB:
7600                 ipw_rt->rt_rate = 48;
7601                 break;
7602         case IPW_TX_RATE_36MB:
7603                 ipw_rt->rt_rate = 72;
7604                 break;
7605         case IPW_TX_RATE_48MB:
7606                 ipw_rt->rt_rate = 96;
7607                 break;
7608         case IPW_TX_RATE_54MB:
7609                 ipw_rt->rt_rate = 108;
7610                 break;
7611         default:
7612                 ipw_rt->rt_rate = 0;
7613                 break;
7614         }
7615
7616         /* antenna number */
7617         ipw_rt->rt_antenna = (antennaAndPhy & 3);       /* Is this right? */
7618
7619         /* set the preamble flag if we have it */
7620         if ((antennaAndPhy & 64))
7621                 ipw_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
7622
7623         /* Set the size of the skb to the size of the frame */
7624         skb_put(rxb->skb, len + sizeof(struct ipw_rt_hdr));
7625
7626         IPW_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
7627
7628         if (!ieee80211_rx(priv->ieee, rxb->skb, stats))
7629                 priv->ieee->stats.rx_errors++;
7630         else {                  /* ieee80211_rx succeeded, so it now owns the SKB */
7631                 rxb->skb = NULL;
7632                 /* no LED during capture */
7633         }
7634 }
7635 #endif
7636
7637 static inline int is_network_packet(struct ipw_priv *priv,
7638                                     struct ieee80211_hdr_4addr *header)
7639 {
7640         /* Filter incoming packets to determine if they are targetted toward
7641          * this network, discarding packets coming from ourselves */
7642         switch (priv->ieee->iw_mode) {
7643         case IW_MODE_ADHOC:     /* Header: Dest. | Source    | BSSID */
7644                 /* packets from our adapter are dropped (echo) */
7645                 if (!memcmp(header->addr2, priv->net_dev->dev_addr, ETH_ALEN))
7646                         return 0;
7647
7648                 /* {broad,multi}cast packets to our BSSID go through */
7649                 if (is_multicast_ether_addr(header->addr1))
7650                         return !memcmp(header->addr3, priv->bssid, ETH_ALEN);
7651
7652                 /* packets to our adapter go through */
7653                 return !memcmp(header->addr1, priv->net_dev->dev_addr,
7654                                ETH_ALEN);
7655
7656         case IW_MODE_INFRA:     /* Header: Dest. | BSSID | Source */
7657                 /* packets from our adapter are dropped (echo) */
7658                 if (!memcmp(header->addr3, priv->net_dev->dev_addr, ETH_ALEN))
7659                         return 0;
7660
7661                 /* {broad,multi}cast packets to our BSS go through */
7662                 if (is_multicast_ether_addr(header->addr1))
7663                         return !memcmp(header->addr2, priv->bssid, ETH_ALEN);
7664
7665                 /* packets to our adapter go through */
7666                 return !memcmp(header->addr1, priv->net_dev->dev_addr,
7667                                ETH_ALEN);
7668         }
7669
7670         return 1;
7671 }
7672
7673 #define IPW_PACKET_RETRY_TIME HZ
7674
7675 static inline int is_duplicate_packet(struct ipw_priv *priv,
7676                                       struct ieee80211_hdr_4addr *header)
7677 {
7678         u16 sc = le16_to_cpu(header->seq_ctl);
7679         u16 seq = WLAN_GET_SEQ_SEQ(sc);
7680         u16 frag = WLAN_GET_SEQ_FRAG(sc);
7681         u16 *last_seq, *last_frag;
7682         unsigned long *last_time;
7683
7684         switch (priv->ieee->iw_mode) {
7685         case IW_MODE_ADHOC:
7686                 {
7687                         struct list_head *p;
7688                         struct ipw_ibss_seq *entry = NULL;
7689                         u8 *mac = header->addr2;
7690                         int index = mac[5] % IPW_IBSS_MAC_HASH_SIZE;
7691
7692                         __list_for_each(p, &priv->ibss_mac_hash[index]) {
7693                                 entry =
7694                                     list_entry(p, struct ipw_ibss_seq, list);
7695                                 if (!memcmp(entry->mac, mac, ETH_ALEN))
7696                                         break;
7697                         }
7698                         if (p == &priv->ibss_mac_hash[index]) {
7699                                 entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
7700                                 if (!entry) {
7701                                         IPW_ERROR
7702                                             ("Cannot malloc new mac entry\n");
7703                                         return 0;
7704                                 }
7705                                 memcpy(entry->mac, mac, ETH_ALEN);
7706                                 entry->seq_num = seq;
7707                                 entry->frag_num = frag;
7708                                 entry->packet_time = jiffies;
7709                                 list_add(&entry->list,
7710                                          &priv->ibss_mac_hash[index]);
7711                                 return 0;
7712                         }
7713                         last_seq = &entry->seq_num;
7714                         last_frag = &entry->frag_num;
7715                         last_time = &entry->packet_time;
7716                         break;
7717                 }
7718         case IW_MODE_INFRA:
7719                 last_seq = &priv->last_seq_num;
7720                 last_frag = &priv->last_frag_num;
7721                 last_time = &priv->last_packet_time;
7722                 break;
7723         default:
7724                 return 0;
7725         }
7726         if ((*last_seq == seq) &&
7727             time_after(*last_time + IPW_PACKET_RETRY_TIME, jiffies)) {
7728                 if (*last_frag == frag)
7729                         goto drop;
7730                 if (*last_frag + 1 != frag)
7731                         /* out-of-order fragment */
7732                         goto drop;
7733         } else
7734                 *last_seq = seq;
7735
7736         *last_frag = frag;
7737         *last_time = jiffies;
7738         return 0;
7739
7740       drop:
7741         /* Comment this line now since we observed the card receives
7742          * duplicate packets but the FCTL_RETRY bit is not set in the
7743          * IBSS mode with fragmentation enabled.
7744          BUG_ON(!(le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_RETRY)); */
7745         return 1;
7746 }
7747
7748 static void ipw_handle_mgmt_packet(struct ipw_priv *priv,
7749                                    struct ipw_rx_mem_buffer *rxb,
7750                                    struct ieee80211_rx_stats *stats)
7751 {
7752         struct sk_buff *skb = rxb->skb;
7753         struct ipw_rx_packet *pkt = (struct ipw_rx_packet *)skb->data;
7754         struct ieee80211_hdr_4addr *header = (struct ieee80211_hdr_4addr *)
7755             (skb->data + IPW_RX_FRAME_SIZE);
7756
7757         ieee80211_rx_mgt(priv->ieee, header, stats);
7758
7759         if (priv->ieee->iw_mode == IW_MODE_ADHOC &&
7760             ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
7761               IEEE80211_STYPE_PROBE_RESP) ||
7762              (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) ==
7763               IEEE80211_STYPE_BEACON))) {
7764                 if (!memcmp(header->addr3, priv->bssid, ETH_ALEN))
7765                         ipw_add_station(priv, header->addr2);
7766         }
7767
7768         if (priv->config & CFG_NET_STATS) {
7769                 IPW_DEBUG_HC("sending stat packet\n");
7770
7771                 /* Set the size of the skb to the size of the full
7772                  * ipw header and 802.11 frame */
7773                 skb_put(skb, le16_to_cpu(pkt->u.frame.length) +
7774                         IPW_RX_FRAME_SIZE);
7775
7776                 /* Advance past the ipw packet header to the 802.11 frame */
7777                 skb_pull(skb, IPW_RX_FRAME_SIZE);
7778
7779                 /* Push the ieee80211_rx_stats before the 802.11 frame */
7780                 memcpy(skb_push(skb, sizeof(*stats)), stats, sizeof(*stats));
7781
7782                 skb->dev = priv->ieee->dev;
7783
7784                 /* Point raw at the ieee80211_stats */
7785                 skb->mac.raw = skb->data;
7786
7787                 skb->pkt_type = PACKET_OTHERHOST;
7788                 skb->protocol = __constant_htons(ETH_P_80211_STATS);
7789                 memset(skb->cb, 0, sizeof(rxb->skb->cb));
7790                 netif_rx(skb);
7791                 rxb->skb = NULL;
7792         }
7793 }
7794
7795 /*
7796  * Main entry function for recieving a packet with 80211 headers.  This
7797  * should be called when ever the FW has notified us that there is a new
7798  * skb in the recieve queue.
7799  */
7800 static void ipw_rx(struct ipw_priv *priv)
7801 {
7802         struct ipw_rx_mem_buffer *rxb;
7803         struct ipw_rx_packet *pkt;
7804         struct ieee80211_hdr_4addr *header;
7805         u32 r, w, i;
7806         u8 network_packet;
7807
7808         r = ipw_read32(priv, IPW_RX_READ_INDEX);
7809         w = ipw_read32(priv, IPW_RX_WRITE_INDEX);
7810         i = (priv->rxq->processed + 1) % RX_QUEUE_SIZE;
7811
7812         while (i != r) {
7813                 rxb = priv->rxq->queue[i];
7814 #ifdef CONFIG_IPW2200_DEBUG
7815                 if (unlikely(rxb == NULL)) {
7816                         printk(KERN_CRIT "Queue not allocated!\n");
7817                         break;
7818                 }
7819 #endif
7820                 priv->rxq->queue[i] = NULL;
7821
7822                 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
7823                                             IPW_RX_BUF_SIZE,
7824                                             PCI_DMA_FROMDEVICE);
7825
7826                 pkt = (struct ipw_rx_packet *)rxb->skb->data;
7827                 IPW_DEBUG_RX("Packet: type=%02X seq=%02X bits=%02X\n",
7828                              pkt->header.message_type,
7829                              pkt->header.rx_seq_num, pkt->header.control_bits);
7830
7831                 switch (pkt->header.message_type) {
7832                 case RX_FRAME_TYPE:     /* 802.11 frame */  {
7833                                 struct ieee80211_rx_stats stats = {
7834                                         .rssi =
7835                                             le16_to_cpu(pkt->u.frame.rssi_dbm) -
7836                                             IPW_RSSI_TO_DBM,
7837                                         .signal =
7838                                             le16_to_cpu(pkt->u.frame.signal),
7839                                         .noise =
7840                                             le16_to_cpu(pkt->u.frame.noise),
7841                                         .rate = pkt->u.frame.rate,
7842                                         .mac_time = jiffies,
7843                                         .received_channel =
7844                                             pkt->u.frame.received_channel,
7845                                         .freq =
7846                                             (pkt->u.frame.
7847                                              control & (1 << 0)) ?
7848                                             IEEE80211_24GHZ_BAND :
7849                                             IEEE80211_52GHZ_BAND,
7850                                         .len = le16_to_cpu(pkt->u.frame.length),
7851                                 };
7852
7853                                 if (stats.rssi != 0)
7854                                         stats.mask |= IEEE80211_STATMASK_RSSI;
7855                                 if (stats.signal != 0)
7856                                         stats.mask |= IEEE80211_STATMASK_SIGNAL;
7857                                 if (stats.noise != 0)
7858                                         stats.mask |= IEEE80211_STATMASK_NOISE;
7859                                 if (stats.rate != 0)
7860                                         stats.mask |= IEEE80211_STATMASK_RATE;
7861
7862                                 priv->rx_packets++;
7863
7864 #ifdef CONFIG_IPW2200_MONITOR
7865                                 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7866 #ifdef CONFIG_IEEE80211_RADIOTAP
7867                                         ipw_handle_data_packet_monitor(priv,
7868                                                                        rxb,
7869                                                                        &stats);
7870 #else
7871                                         ipw_handle_data_packet(priv, rxb,
7872                                                                &stats);
7873 #endif
7874                                         break;
7875                                 }
7876 #endif
7877
7878                                 header =
7879                                     (struct ieee80211_hdr_4addr *)(rxb->skb->
7880                                                                    data +
7881                                                                    IPW_RX_FRAME_SIZE);
7882                                 /* TODO: Check Ad-Hoc dest/source and make sure
7883                                  * that we are actually parsing these packets
7884                                  * correctly -- we should probably use the
7885                                  * frame control of the packet and disregard
7886                                  * the current iw_mode */
7887
7888                                 network_packet =
7889                                     is_network_packet(priv, header);
7890                                 if (network_packet && priv->assoc_network) {
7891                                         priv->assoc_network->stats.rssi =
7892                                             stats.rssi;
7893                                         average_add(&priv->average_rssi,
7894                                                     stats.rssi);
7895                                         priv->last_rx_rssi = stats.rssi;
7896                                 }
7897
7898                                 IPW_DEBUG_RX("Frame: len=%u\n",
7899                                              le16_to_cpu(pkt->u.frame.length));
7900
7901                                 if (le16_to_cpu(pkt->u.frame.length) <
7902                                     frame_hdr_len(header)) {
7903                                         IPW_DEBUG_DROP
7904                                             ("Received packet is too small. "
7905                                              "Dropping.\n");
7906                                         priv->ieee->stats.rx_errors++;
7907                                         priv->wstats.discard.misc++;
7908                                         break;
7909                                 }
7910
7911                                 switch (WLAN_FC_GET_TYPE
7912                                         (le16_to_cpu(header->frame_ctl))) {
7913
7914                                 case IEEE80211_FTYPE_MGMT:
7915                                         ipw_handle_mgmt_packet(priv, rxb,
7916                                                                &stats);
7917                                         break;
7918
7919                                 case IEEE80211_FTYPE_CTL:
7920                                         break;
7921
7922                                 case IEEE80211_FTYPE_DATA:
7923                                         if (unlikely(!network_packet ||
7924                                                      is_duplicate_packet(priv,
7925                                                                          header)))
7926                                         {
7927                                                 IPW_DEBUG_DROP("Dropping: "
7928                                                                MAC_FMT ", "
7929                                                                MAC_FMT ", "
7930                                                                MAC_FMT "\n",
7931                                                                MAC_ARG(header->
7932                                                                        addr1),
7933                                                                MAC_ARG(header->
7934                                                                        addr2),
7935                                                                MAC_ARG(header->
7936                                                                        addr3));
7937                                                 break;
7938                                         }
7939
7940                                         ipw_handle_data_packet(priv, rxb,
7941                                                                &stats);
7942
7943                                         break;
7944                                 }
7945                                 break;
7946                         }
7947
7948                 case RX_HOST_NOTIFICATION_TYPE:{
7949                                 IPW_DEBUG_RX
7950                                     ("Notification: subtype=%02X flags=%02X size=%d\n",
7951                                      pkt->u.notification.subtype,
7952                                      pkt->u.notification.flags,
7953                                      pkt->u.notification.size);
7954                                 ipw_rx_notification(priv, &pkt->u.notification);
7955                                 break;
7956                         }
7957
7958                 default:
7959                         IPW_DEBUG_RX("Bad Rx packet of type %d\n",
7960                                      pkt->header.message_type);
7961                         break;
7962                 }
7963
7964                 /* For now we just don't re-use anything.  We can tweak this
7965                  * later to try and re-use notification packets and SKBs that
7966                  * fail to Rx correctly */
7967                 if (rxb->skb != NULL) {
7968                         dev_kfree_skb_any(rxb->skb);
7969                         rxb->skb = NULL;
7970                 }
7971
7972                 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
7973                                  IPW_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
7974                 list_add_tail(&rxb->list, &priv->rxq->rx_used);
7975
7976                 i = (i + 1) % RX_QUEUE_SIZE;
7977         }
7978
7979         /* Backtrack one entry */
7980         priv->rxq->processed = (i ? i : RX_QUEUE_SIZE) - 1;
7981
7982         ipw_rx_queue_restock(priv);
7983 }
7984
7985 #define DEFAULT_RTS_THRESHOLD     2304U
7986 #define MIN_RTS_THRESHOLD         1U
7987 #define MAX_RTS_THRESHOLD         2304U
7988 #define DEFAULT_BEACON_INTERVAL   100U
7989 #define DEFAULT_SHORT_RETRY_LIMIT 7U
7990 #define DEFAULT_LONG_RETRY_LIMIT  4U
7991
7992 static int ipw_sw_reset(struct ipw_priv *priv, int init)
7993 {
7994         int band, modulation;
7995         int old_mode = priv->ieee->iw_mode;
7996
7997         /* Initialize module parameter values here */
7998         priv->config = 0;
7999
8000         /* We default to disabling the LED code as right now it causes
8001          * too many systems to lock up... */
8002         if (!led)
8003                 priv->config |= CFG_NO_LED;
8004
8005         if (associate)
8006                 priv->config |= CFG_ASSOCIATE;
8007         else
8008                 IPW_DEBUG_INFO("Auto associate disabled.\n");
8009
8010         if (auto_create)
8011                 priv->config |= CFG_ADHOC_CREATE;
8012         else
8013                 IPW_DEBUG_INFO("Auto adhoc creation disabled.\n");
8014
8015         if (disable) {
8016                 priv->status |= STATUS_RF_KILL_SW;
8017                 IPW_DEBUG_INFO("Radio disabled.\n");
8018         }
8019
8020         if (channel != 0) {
8021                 priv->config |= CFG_STATIC_CHANNEL;
8022                 priv->channel = channel;
8023                 IPW_DEBUG_INFO("Bind to static channel %d\n", channel);
8024                 /* TODO: Validate that provided channel is in range */
8025         }
8026 #ifdef CONFIG_IPW_QOS
8027         ipw_qos_init(priv, qos_enable, qos_burst_enable,
8028                      burst_duration_CCK, burst_duration_OFDM);
8029 #endif                          /* CONFIG_IPW_QOS */
8030
8031         switch (mode) {
8032         case 1:
8033                 priv->ieee->iw_mode = IW_MODE_ADHOC;
8034                 priv->net_dev->type = ARPHRD_ETHER;
8035
8036                 break;
8037 #ifdef CONFIG_IPW2200_MONITOR
8038         case 2:
8039                 priv->ieee->iw_mode = IW_MODE_MONITOR;
8040 #ifdef CONFIG_IEEE80211_RADIOTAP
8041                 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8042 #else
8043                 priv->net_dev->type = ARPHRD_IEEE80211;
8044 #endif
8045                 break;
8046 #endif
8047         default:
8048         case 0:
8049                 priv->net_dev->type = ARPHRD_ETHER;
8050                 priv->ieee->iw_mode = IW_MODE_INFRA;
8051                 break;
8052         }
8053
8054         if (hwcrypto) {
8055                 priv->ieee->host_encrypt = 0;
8056                 priv->ieee->host_encrypt_msdu = 0;
8057                 priv->ieee->host_decrypt = 0;
8058                 priv->ieee->host_mc_decrypt = 0;
8059         }
8060         IPW_DEBUG_INFO("Hardware crypto [%s]\n", hwcrypto ? "on" : "off");
8061
8062         /* IPW2200/2915 is abled to do hardware fragmentation. */
8063         priv->ieee->host_open_frag = 0;
8064
8065         if ((priv->pci_dev->device == 0x4223) ||
8066             (priv->pci_dev->device == 0x4224)) {
8067                 if (init)
8068                         printk(KERN_INFO DRV_NAME
8069                                ": Detected Intel PRO/Wireless 2915ABG Network "
8070                                "Connection\n");
8071                 priv->ieee->abg_true = 1;
8072                 band = IEEE80211_52GHZ_BAND | IEEE80211_24GHZ_BAND;
8073                 modulation = IEEE80211_OFDM_MODULATION |
8074                     IEEE80211_CCK_MODULATION;
8075                 priv->adapter = IPW_2915ABG;
8076                 priv->ieee->mode = IEEE_A | IEEE_G | IEEE_B;
8077         } else {
8078                 if (init)
8079                         printk(KERN_INFO DRV_NAME
8080                                ": Detected Intel PRO/Wireless 2200BG Network "
8081                                "Connection\n");
8082
8083                 priv->ieee->abg_true = 0;
8084                 band = IEEE80211_24GHZ_BAND;
8085                 modulation = IEEE80211_OFDM_MODULATION |
8086                     IEEE80211_CCK_MODULATION;
8087                 priv->adapter = IPW_2200BG;
8088                 priv->ieee->mode = IEEE_G | IEEE_B;
8089         }
8090
8091         priv->ieee->freq_band = band;
8092         priv->ieee->modulation = modulation;
8093
8094         priv->rates_mask = IEEE80211_DEFAULT_RATES_MASK;
8095
8096         priv->disassociate_threshold = IPW_MB_DISASSOCIATE_THRESHOLD_DEFAULT;
8097         priv->roaming_threshold = IPW_MB_ROAMING_THRESHOLD_DEFAULT;
8098
8099         priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
8100         priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
8101         priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
8102
8103         /* If power management is turned on, default to AC mode */
8104         priv->power_mode = IPW_POWER_AC;
8105         priv->tx_power = IPW_TX_POWER_DEFAULT;
8106
8107         return old_mode == priv->ieee->iw_mode;
8108 }
8109
8110 /*
8111  * This file defines the Wireless Extension handlers.  It does not
8112  * define any methods of hardware manipulation and relies on the
8113  * functions defined in ipw_main to provide the HW interaction.
8114  *
8115  * The exception to this is the use of the ipw_get_ordinal()
8116  * function used to poll the hardware vs. making unecessary calls.
8117  *
8118  */
8119
8120 static int ipw_wx_get_name(struct net_device *dev,
8121                            struct iw_request_info *info,
8122                            union iwreq_data *wrqu, char *extra)
8123 {
8124         struct ipw_priv *priv = ieee80211_priv(dev);
8125         down(&priv->sem);
8126         if (priv->status & STATUS_RF_KILL_MASK)
8127                 strcpy(wrqu->name, "radio off");
8128         else if (!(priv->status & STATUS_ASSOCIATED))
8129                 strcpy(wrqu->name, "unassociated");
8130         else
8131                 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11%c",
8132                          ipw_modes[priv->assoc_request.ieee_mode]);
8133         IPW_DEBUG_WX("Name: %s\n", wrqu->name);
8134         up(&priv->sem);
8135         return 0;
8136 }
8137
8138 static int ipw_set_channel(struct ipw_priv *priv, u8 channel)
8139 {
8140         if (channel == 0) {
8141                 IPW_DEBUG_INFO("Setting channel to ANY (0)\n");
8142                 priv->config &= ~CFG_STATIC_CHANNEL;
8143                 IPW_DEBUG_ASSOC("Attempting to associate with new "
8144                                 "parameters.\n");
8145                 ipw_associate(priv);
8146                 return 0;
8147         }
8148
8149         priv->config |= CFG_STATIC_CHANNEL;
8150
8151         if (priv->channel == channel) {
8152                 IPW_DEBUG_INFO("Request to set channel to current value (%d)\n",
8153                                channel);
8154                 return 0;
8155         }
8156
8157         IPW_DEBUG_INFO("Setting channel to %i\n", (int)channel);
8158         priv->channel = channel;
8159
8160 #ifdef CONFIG_IPW2200_MONITOR
8161         if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8162                 int i;
8163                 if (priv->status & STATUS_SCANNING) {
8164                         IPW_DEBUG_SCAN("Scan abort triggered due to "
8165                                        "channel change.\n");
8166                         ipw_abort_scan(priv);
8167                 }
8168
8169                 for (i = 1000; i && (priv->status & STATUS_SCANNING); i--)
8170                         udelay(10);
8171
8172                 if (priv->status & STATUS_SCANNING)
8173                         IPW_DEBUG_SCAN("Still scanning...\n");
8174                 else
8175                         IPW_DEBUG_SCAN("Took %dms to abort current scan\n",
8176                                        1000 - i);
8177
8178                 return 0;
8179         }
8180 #endif                          /* CONFIG_IPW2200_MONITOR */
8181
8182         /* Network configuration changed -- force [re]association */
8183         IPW_DEBUG_ASSOC("[re]association triggered due to channel change.\n");
8184         if (!ipw_disassociate(priv))
8185                 ipw_associate(priv);
8186
8187         return 0;
8188 }
8189
8190 static int ipw_wx_set_freq(struct net_device *dev,
8191                            struct iw_request_info *info,
8192                            union iwreq_data *wrqu, char *extra)
8193 {
8194         struct ipw_priv *priv = ieee80211_priv(dev);
8195         const struct ieee80211_geo *geo = ipw_get_geo(priv->ieee);
8196         struct iw_freq *fwrq = &wrqu->freq;
8197         int ret = 0, i;
8198         u8 channel, flags;
8199         int band;
8200
8201         if (fwrq->m == 0) {
8202                 IPW_DEBUG_WX("SET Freq/Channel -> any\n");
8203                 down(&priv->sem);
8204                 ret = ipw_set_channel(priv, 0);
8205                 up(&priv->sem);
8206                 return ret;
8207         }
8208         /* if setting by freq convert to channel */
8209         if (fwrq->e == 1) {
8210                 channel = ipw_freq_to_channel(priv->ieee, fwrq->m);
8211                 if (channel == 0)
8212                         return -EINVAL;
8213         } else
8214                 channel = fwrq->m;
8215
8216         if (!(band = ipw_is_valid_channel(priv->ieee, channel)))
8217                 return -EINVAL;
8218
8219         if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
8220                 i = ipw_channel_to_index(priv->ieee, channel);
8221                 if (i == -1)
8222                         return -EINVAL;
8223
8224                 flags = (band == IEEE80211_24GHZ_BAND) ?
8225                     geo->bg[i].flags : geo->a[i].flags;
8226                 if (flags & IEEE80211_CH_PASSIVE_ONLY) {
8227                         IPW_DEBUG_WX("Invalid Ad-Hoc channel for 802.11a\n");
8228                         return -EINVAL;
8229                 }
8230         }
8231
8232         IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
8233         down(&priv->sem);
8234         ret = ipw_set_channel(priv, channel);
8235         up(&priv->sem);
8236         return ret;
8237 }
8238
8239 static int ipw_wx_get_freq(struct net_device *dev,
8240                            struct iw_request_info *info,
8241                            union iwreq_data *wrqu, char *extra)
8242 {
8243         struct ipw_priv *priv = ieee80211_priv(dev);
8244
8245         wrqu->freq.e = 0;
8246
8247         /* If we are associated, trying to associate, or have a statically
8248          * configured CHANNEL then return that; otherwise return ANY */
8249         down(&priv->sem);
8250         if (priv->config & CFG_STATIC_CHANNEL ||
8251             priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED))
8252                 wrqu->freq.m = priv->channel;
8253         else
8254                 wrqu->freq.m = 0;
8255
8256         up(&priv->sem);
8257         IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
8258         return 0;
8259 }
8260
8261 static int ipw_wx_set_mode(struct net_device *dev,
8262                            struct iw_request_info *info,
8263                            union iwreq_data *wrqu, char *extra)
8264 {
8265         struct ipw_priv *priv = ieee80211_priv(dev);
8266         int err = 0;
8267
8268         IPW_DEBUG_WX("Set MODE: %d\n", wrqu->mode);
8269
8270         switch (wrqu->mode) {
8271 #ifdef CONFIG_IPW2200_MONITOR
8272         case IW_MODE_MONITOR:
8273 #endif
8274         case IW_MODE_ADHOC:
8275         case IW_MODE_INFRA:
8276                 break;
8277         case IW_MODE_AUTO:
8278                 wrqu->mode = IW_MODE_INFRA;
8279                 break;
8280         default:
8281                 return -EINVAL;
8282         }
8283         if (wrqu->mode == priv->ieee->iw_mode)
8284                 return 0;
8285
8286         down(&priv->sem);
8287
8288         ipw_sw_reset(priv, 0);
8289
8290 #ifdef CONFIG_IPW2200_MONITOR
8291         if (priv->ieee->iw_mode == IW_MODE_MONITOR)
8292                 priv->net_dev->type = ARPHRD_ETHER;
8293
8294         if (wrqu->mode == IW_MODE_MONITOR)
8295 #ifdef CONFIG_IEEE80211_RADIOTAP
8296                 priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
8297 #else
8298                 priv->net_dev->type = ARPHRD_IEEE80211;
8299 #endif
8300 #endif                          /* CONFIG_IPW2200_MONITOR */
8301
8302         /* Free the existing firmware and reset the fw_loaded
8303          * flag so ipw_load() will bring in the new firmawre */
8304         free_firmware();
8305
8306         priv->ieee->iw_mode = wrqu->mode;
8307
8308         queue_work(priv->workqueue, &priv->adapter_restart);
8309         up(&priv->sem);
8310         return err;
8311 }
8312
8313 static int ipw_wx_get_mode(struct net_device *dev,
8314                            struct iw_request_info *info,
8315                            union iwreq_data *wrqu, char *extra)
8316 {
8317         struct ipw_priv *priv = ieee80211_priv(dev);
8318         down(&priv->sem);
8319         wrqu->mode = priv->ieee->iw_mode;
8320         IPW_DEBUG_WX("Get MODE -> %d\n", wrqu->mode);
8321         up(&priv->sem);
8322         return 0;
8323 }
8324
8325 /* Values are in microsecond */
8326 static const s32 timeout_duration[] = {
8327         350000,
8328         250000,
8329         75000,
8330         37000,
8331         25000,
8332 };
8333
8334 static const s32 period_duration[] = {
8335         400000,
8336         700000,
8337         1000000,
8338         1000000,
8339         1000000
8340 };
8341
8342 static int ipw_wx_get_range(struct net_device *dev,
8343                             struct iw_request_info *info,
8344                             union iwreq_data *wrqu, char *extra)
8345 {
8346         struct ipw_priv *priv = ieee80211_priv(dev);
8347         struct iw_range *range = (struct iw_range *)extra;
8348         const struct ieee80211_geo *geo = ipw_get_geo(priv->ieee);
8349         int i = 0, j;
8350
8351         wrqu->data.length = sizeof(*range);
8352         memset(range, 0, sizeof(*range));
8353
8354         /* 54Mbs == ~27 Mb/s real (802.11g) */
8355         range->throughput = 27 * 1000 * 1000;
8356
8357         range->max_qual.qual = 100;
8358         /* TODO: Find real max RSSI and stick here */
8359         range->max_qual.level = 0;
8360         range->max_qual.noise = priv->ieee->worst_rssi + 0x100;
8361         range->max_qual.updated = 7;    /* Updated all three */
8362
8363         range->avg_qual.qual = 70;
8364         /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
8365         range->avg_qual.level = 0;      /* FIXME to real average level */
8366         range->avg_qual.noise = 0;
8367         range->avg_qual.updated = 7;    /* Updated all three */
8368         down(&priv->sem);
8369         range->num_bitrates = min(priv->rates.num_rates, (u8) IW_MAX_BITRATES);
8370
8371         for (i = 0; i < range->num_bitrates; i++)
8372                 range->bitrate[i] = (priv->rates.supported_rates[i] & 0x7F) *
8373                     500000;
8374
8375         range->max_rts = DEFAULT_RTS_THRESHOLD;
8376         range->min_frag = MIN_FRAG_THRESHOLD;
8377         range->max_frag = MAX_FRAG_THRESHOLD;
8378
8379         range->encoding_size[0] = 5;
8380         range->encoding_size[1] = 13;
8381         range->num_encoding_sizes = 2;
8382         range->max_encoding_tokens = WEP_KEYS;
8383
8384         /* Set the Wireless Extension versions */
8385         range->we_version_compiled = WIRELESS_EXT;
8386         range->we_version_source = 16;
8387
8388         i = 0;
8389         if (priv->ieee->mode & (IEEE_B | IEEE_G)) {
8390                 for (j = 0; j < geo->bg_channels && i < IW_MAX_FREQUENCIES;
8391                      i++, j++) {
8392                         range->freq[i].i = geo->bg[j].channel;
8393                         range->freq[i].m = geo->bg[j].freq * 100000;
8394                         range->freq[i].e = 1;
8395                 }
8396         }
8397
8398         if (priv->ieee->mode & IEEE_A) {
8399                 for (j = 0; j < geo->a_channels && i < IW_MAX_FREQUENCIES;
8400                      i++, j++) {
8401                         range->freq[i].i = geo->a[j].channel;
8402                         range->freq[i].m = geo->a[j].freq * 100000;
8403                         range->freq[i].e = 1;
8404                 }
8405         }
8406
8407         range->num_channels = i;
8408         range->num_frequency = i;
8409
8410         up(&priv->sem);
8411
8412         /* Event capability (kernel + driver) */
8413         range->event_capa[0] = (IW_EVENT_CAPA_K_0 |
8414                                 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) |
8415                                 IW_EVENT_CAPA_MASK(SIOCGIWAP));
8416         range->event_capa[1] = IW_EVENT_CAPA_K_1;
8417
8418         IPW_DEBUG_WX("GET Range\n");
8419         return 0;
8420 }
8421
8422 static int ipw_wx_set_wap(struct net_device *dev,
8423                           struct iw_request_info *info,
8424                           union iwreq_data *wrqu, char *extra)
8425 {
8426         struct ipw_priv *priv = ieee80211_priv(dev);
8427
8428         static const unsigned char any[] = {
8429                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
8430         };
8431         static const unsigned char off[] = {
8432                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
8433         };
8434
8435         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
8436                 return -EINVAL;
8437         down(&priv->sem);
8438         if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
8439             !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
8440                 /* we disable mandatory BSSID association */
8441                 IPW_DEBUG_WX("Setting AP BSSID to ANY\n");
8442                 priv->config &= ~CFG_STATIC_BSSID;
8443                 IPW_DEBUG_ASSOC("Attempting to associate with new "
8444                                 "parameters.\n");
8445                 ipw_associate(priv);
8446                 up(&priv->sem);
8447                 return 0;
8448         }
8449
8450         priv->config |= CFG_STATIC_BSSID;
8451         if (!memcmp(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN)) {
8452                 IPW_DEBUG_WX("BSSID set to current BSSID.\n");
8453                 up(&priv->sem);
8454                 return 0;
8455         }
8456
8457         IPW_DEBUG_WX("Setting mandatory BSSID to " MAC_FMT "\n",
8458                      MAC_ARG(wrqu->ap_addr.sa_data));
8459
8460         memcpy(priv->bssid, wrqu->ap_addr.sa_data, ETH_ALEN);
8461
8462         /* Network configuration changed -- force [re]association */
8463         IPW_DEBUG_ASSOC("[re]association triggered due to BSSID change.\n");
8464         if (!ipw_disassociate(priv))
8465                 ipw_associate(priv);
8466
8467         up(&priv->sem);
8468         return 0;
8469 }
8470
8471 static int ipw_wx_get_wap(struct net_device *dev,
8472                           struct iw_request_info *info,
8473                           union iwreq_data *wrqu, char *extra)
8474 {
8475         struct ipw_priv *priv = ieee80211_priv(dev);
8476         /* If we are associated, trying to associate, or have a statically
8477          * configured BSSID then return that; otherwise return ANY */
8478         down(&priv->sem);
8479         if (priv->config & CFG_STATIC_BSSID ||
8480             priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
8481                 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
8482                 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
8483         } else
8484                 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
8485
8486         IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n",
8487                      MAC_ARG(wrqu->ap_addr.sa_data));
8488         up(&priv->sem);
8489         return 0;
8490 }
8491
8492 static int ipw_wx_set_essid(struct net_device *dev,
8493                             struct iw_request_info *info,
8494                             union iwreq_data *wrqu, char *extra)
8495 {
8496         struct ipw_priv *priv = ieee80211_priv(dev);
8497         char *essid = "";       /* ANY */
8498         int length = 0;
8499         down(&priv->sem);
8500         if (wrqu->essid.flags && wrqu->essid.length) {
8501                 length = wrqu->essid.length - 1;
8502                 essid = extra;
8503         }
8504         if (length == 0) {
8505                 IPW_DEBUG_WX("Setting ESSID to ANY\n");
8506                 if ((priv->config & CFG_STATIC_ESSID) &&
8507                     !(priv->status & (STATUS_ASSOCIATED |
8508                                       STATUS_ASSOCIATING))) {
8509                         IPW_DEBUG_ASSOC("Attempting to associate with new "
8510                                         "parameters.\n");
8511                         priv->config &= ~CFG_STATIC_ESSID;
8512                         ipw_associate(priv);
8513                 }
8514                 up(&priv->sem);
8515                 return 0;
8516         }
8517
8518         length = min(length, IW_ESSID_MAX_SIZE);
8519
8520         priv->config |= CFG_STATIC_ESSID;
8521
8522         if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
8523                 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
8524                 up(&priv->sem);
8525                 return 0;
8526         }
8527
8528         IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length),
8529                      length);
8530
8531         priv->essid_len = length;
8532         memcpy(priv->essid, essid, priv->essid_len);
8533
8534         /* Network configuration changed -- force [re]association */
8535         IPW_DEBUG_ASSOC("[re]association triggered due to ESSID change.\n");
8536         if (!ipw_disassociate(priv))
8537                 ipw_associate(priv);
8538
8539         up(&priv->sem);
8540         return 0;
8541 }
8542
8543 static int ipw_wx_get_essid(struct net_device *dev,
8544                             struct iw_request_info *info,
8545                             union iwreq_data *wrqu, char *extra)
8546 {
8547         struct ipw_priv *priv = ieee80211_priv(dev);
8548
8549         /* If we are associated, trying to associate, or have a statically
8550          * configured ESSID then return that; otherwise return ANY */
8551         down(&priv->sem);
8552         if (priv->config & CFG_STATIC_ESSID ||
8553             priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) {
8554                 IPW_DEBUG_WX("Getting essid: '%s'\n",
8555                              escape_essid(priv->essid, priv->essid_len));
8556                 memcpy(extra, priv->essid, priv->essid_len);
8557                 wrqu->essid.length = priv->essid_len;
8558                 wrqu->essid.flags = 1;  /* active */
8559         } else {
8560                 IPW_DEBUG_WX("Getting essid: ANY\n");
8561                 wrqu->essid.length = 0;
8562                 wrqu->essid.flags = 0;  /* active */
8563         }
8564         up(&priv->sem);
8565         return 0;
8566 }
8567
8568 static int ipw_wx_set_nick(struct net_device *dev,
8569                            struct iw_request_info *info,
8570                            union iwreq_data *wrqu, char *extra)
8571 {
8572         struct ipw_priv *priv = ieee80211_priv(dev);
8573
8574         IPW_DEBUG_WX("Setting nick to '%s'\n", extra);
8575         if (wrqu->data.length > IW_ESSID_MAX_SIZE)
8576                 return -E2BIG;
8577         down(&priv->sem);
8578         wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick));
8579         memset(priv->nick, 0, sizeof(priv->nick));
8580         memcpy(priv->nick, extra, wrqu->data.length);
8581         IPW_DEBUG_TRACE("<<\n");
8582         up(&priv->sem);
8583         return 0;
8584
8585 }
8586
8587 static int ipw_wx_get_nick(struct net_device *dev,
8588                            struct iw_request_info *info,
8589                            union iwreq_data *wrqu, char *extra)
8590 {
8591         struct ipw_priv *priv = ieee80211_priv(dev);
8592         IPW_DEBUG_WX("Getting nick\n");
8593         down(&priv->sem);
8594         wrqu->data.length = strlen(priv->nick) + 1;
8595         memcpy(extra, priv->nick, wrqu->data.length);
8596         wrqu->data.flags = 1;   /* active */
8597         up(&priv->sem);
8598         return 0;
8599 }
8600
8601 static int ipw_wx_set_rate(struct net_device *dev,
8602                            struct iw_request_info *info,
8603                            union iwreq_data *wrqu, char *extra)
8604 {
8605         /* TODO: We should use semaphores or locks for access to priv */
8606         struct ipw_priv *priv = ieee80211_priv(dev);
8607         u32 target_rate = wrqu->bitrate.value;
8608         u32 fixed, mask;
8609
8610         /* value = -1, fixed = 0 means auto only, so we should use all rates offered by AP */
8611         /* value = X, fixed = 1 means only rate X */
8612         /* value = X, fixed = 0 means all rates lower equal X */
8613
8614         if (target_rate == -1) {
8615                 fixed = 0;
8616                 mask = IEEE80211_DEFAULT_RATES_MASK;
8617                 /* Now we should reassociate */
8618                 goto apply;
8619         }
8620
8621         mask = 0;
8622         fixed = wrqu->bitrate.fixed;
8623
8624         if (target_rate == 1000000 || !fixed)
8625                 mask |= IEEE80211_CCK_RATE_1MB_MASK;
8626         if (target_rate == 1000000)
8627                 goto apply;
8628
8629         if (target_rate == 2000000 || !fixed)
8630                 mask |= IEEE80211_CCK_RATE_2MB_MASK;
8631         if (target_rate == 2000000)
8632                 goto apply;
8633
8634         if (target_rate == 5500000 || !fixed)
8635                 mask |= IEEE80211_CCK_RATE_5MB_MASK;
8636         if (target_rate == 5500000)
8637                 goto apply;
8638
8639         if (target_rate == 6000000 || !fixed)
8640                 mask |= IEEE80211_OFDM_RATE_6MB_MASK;
8641         if (target_rate == 6000000)
8642                 goto apply;
8643
8644         if (target_rate == 9000000 || !fixed)
8645                 mask |= IEEE80211_OFDM_RATE_9MB_MASK;
8646         if (target_rate == 9000000)
8647                 goto apply;
8648
8649         if (target_rate == 11000000 || !fixed)
8650                 mask |= IEEE80211_CCK_RATE_11MB_MASK;
8651         if (target_rate == 11000000)
8652                 goto apply;
8653
8654         if (target_rate == 12000000 || !fixed)
8655                 mask |= IEEE80211_OFDM_RATE_12MB_MASK;
8656         if (target_rate == 12000000)
8657                 goto apply;
8658
8659         if (target_rate == 18000000 || !fixed)
8660                 mask |= IEEE80211_OFDM_RATE_18MB_MASK;
8661         if (target_rate == 18000000)
8662                 goto apply;
8663
8664         if (target_rate == 24000000 || !fixed)
8665                 mask |= IEEE80211_OFDM_RATE_24MB_MASK;
8666         if (target_rate == 24000000)
8667                 goto apply;
8668
8669         if (target_rate == 36000000 || !fixed)
8670                 mask |= IEEE80211_OFDM_RATE_36MB_MASK;
8671         if (target_rate == 36000000)
8672                 goto apply;
8673
8674         if (target_rate == 48000000 || !fixed)
8675                 mask |= IEEE80211_OFDM_RATE_48MB_MASK;
8676         if (target_rate == 48000000)
8677                 goto apply;
8678
8679         if (target_rate == 54000000 || !fixed)
8680                 mask |= IEEE80211_OFDM_RATE_54MB_MASK;
8681         if (target_rate == 54000000)
8682                 goto apply;
8683
8684         IPW_DEBUG_WX("invalid rate specified, returning error\n");
8685         return -EINVAL;
8686
8687       apply:
8688         IPW_DEBUG_WX("Setting rate mask to 0x%08X [%s]\n",
8689                      mask, fixed ? "fixed" : "sub-rates");
8690         down(&priv->sem);
8691         if (mask == IEEE80211_DEFAULT_RATES_MASK) {
8692                 priv->config &= ~CFG_FIXED_RATE;
8693                 ipw_set_fixed_rate(priv, priv->ieee->mode);
8694         } else
8695                 priv->config |= CFG_FIXED_RATE;
8696
8697         if (priv->rates_mask == mask) {
8698                 IPW_DEBUG_WX("Mask set to current mask.\n");
8699                 up(&priv->sem);
8700                 return 0;
8701         }
8702
8703         priv->rates_mask = mask;
8704
8705         /* Network configuration changed -- force [re]association */
8706         IPW_DEBUG_ASSOC("[re]association triggered due to rates change.\n");
8707         if (!ipw_disassociate(priv))
8708                 ipw_associate(priv);
8709
8710         up(&priv->sem);
8711         return 0;
8712 }
8713
8714 static int ipw_wx_get_rate(struct net_device *dev,
8715                            struct iw_request_info *info,
8716                            union iwreq_data *wrqu, char *extra)
8717 {
8718         struct ipw_priv *priv = ieee80211_priv(dev);
8719         down(&priv->sem);
8720         wrqu->bitrate.value = priv->last_rate;
8721         up(&priv->sem);
8722         IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
8723         return 0;
8724 }
8725
8726 static int ipw_wx_set_rts(struct net_device *dev,
8727                           struct iw_request_info *info,
8728                           union iwreq_data *wrqu, char *extra)
8729 {
8730         struct ipw_priv *priv = ieee80211_priv(dev);
8731         down(&priv->sem);
8732         if (wrqu->rts.disabled)
8733                 priv->rts_threshold = DEFAULT_RTS_THRESHOLD;
8734         else {
8735                 if (wrqu->rts.value < MIN_RTS_THRESHOLD ||
8736                     wrqu->rts.value > MAX_RTS_THRESHOLD) {
8737                         up(&priv->sem);
8738                         return -EINVAL;
8739                 }
8740                 priv->rts_threshold = wrqu->rts.value;
8741         }
8742
8743         ipw_send_rts_threshold(priv, priv->rts_threshold);
8744         up(&priv->sem);
8745         IPW_DEBUG_WX("SET RTS Threshold -> %d \n", priv->rts_threshold);
8746         return 0;
8747 }
8748
8749 static int ipw_wx_get_rts(struct net_device *dev,
8750                           struct iw_request_info *info,
8751                           union iwreq_data *wrqu, char *extra)
8752 {
8753         struct ipw_priv *priv = ieee80211_priv(dev);
8754         down(&priv->sem);
8755         wrqu->rts.value = priv->rts_threshold;
8756         wrqu->rts.fixed = 0;    /* no auto select */
8757         wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
8758         up(&priv->sem);
8759         IPW_DEBUG_WX("GET RTS Threshold -> %d \n", wrqu->rts.value);
8760         return 0;
8761 }
8762
8763 static int ipw_wx_set_txpow(struct net_device *dev,
8764                             struct iw_request_info *info,
8765                             union iwreq_data *wrqu, char *extra)
8766 {
8767         struct ipw_priv *priv = ieee80211_priv(dev);
8768         int err = 0;
8769
8770         down(&priv->sem);
8771         if (ipw_radio_kill_sw(priv, wrqu->power.disabled)) {
8772                 err = -EINPROGRESS;
8773                 goto out;
8774         }
8775
8776         if (!wrqu->power.fixed)
8777                 wrqu->power.value = IPW_TX_POWER_DEFAULT;
8778
8779         if (wrqu->power.flags != IW_TXPOW_DBM) {
8780                 err = -EINVAL;
8781                 goto out;
8782         }
8783
8784         if ((wrqu->power.value > IPW_TX_POWER_MAX) ||
8785             (wrqu->power.value < IPW_TX_POWER_MIN)) {
8786                 err = -EINVAL;
8787                 goto out;
8788         }
8789
8790         priv->tx_power = wrqu->power.value;
8791         err = ipw_set_tx_power(priv);
8792       out:
8793         up(&priv->sem);
8794         return err;
8795 }
8796
8797 static int ipw_wx_get_txpow(struct net_device *dev,
8798                             struct iw_request_info *info,
8799                             union iwreq_data *wrqu, char *extra)
8800 {
8801         struct ipw_priv *priv = ieee80211_priv(dev);
8802         down(&priv->sem);
8803         wrqu->power.value = priv->tx_power;
8804         wrqu->power.fixed = 1;
8805         wrqu->power.flags = IW_TXPOW_DBM;
8806         wrqu->power.disabled = (priv->status & STATUS_RF_KILL_MASK) ? 1 : 0;
8807         up(&priv->sem);
8808
8809         IPW_DEBUG_WX("GET TX Power -> %s %d \n",
8810                      wrqu->power.disabled ? "OFF" : "ON", wrqu->power.value);
8811
8812         return 0;
8813 }
8814
8815 static int ipw_wx_set_frag(struct net_device *dev,
8816                            struct iw_request_info *info,
8817                            union iwreq_data *wrqu, char *extra)
8818 {
8819         struct ipw_priv *priv = ieee80211_priv(dev);
8820         down(&priv->sem);
8821         if (wrqu->frag.disabled)
8822                 priv->ieee->fts = DEFAULT_FTS;
8823         else {
8824                 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
8825                     wrqu->frag.value > MAX_FRAG_THRESHOLD) {
8826                         up(&priv->sem);
8827                         return -EINVAL;
8828                 }
8829
8830                 priv->ieee->fts = wrqu->frag.value & ~0x1;
8831         }
8832
8833         ipw_send_frag_threshold(priv, wrqu->frag.value);
8834         up(&priv->sem);
8835         IPW_DEBUG_WX("SET Frag Threshold -> %d \n", wrqu->frag.value);
8836         return 0;
8837 }
8838
8839 static int ipw_wx_get_frag(struct net_device *dev,
8840                            struct iw_request_info *info,
8841                            union iwreq_data *wrqu, char *extra)
8842 {
8843         struct ipw_priv *priv = ieee80211_priv(dev);
8844         down(&priv->sem);
8845         wrqu->frag.value = priv->ieee->fts;
8846         wrqu->frag.fixed = 0;   /* no auto select */
8847         wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FTS);
8848         up(&priv->sem);
8849         IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
8850
8851         return 0;
8852 }
8853
8854 static int ipw_wx_set_retry(struct net_device *dev,
8855                             struct iw_request_info *info,
8856                             union iwreq_data *wrqu, char *extra)
8857 {
8858         struct ipw_priv *priv = ieee80211_priv(dev);
8859
8860         if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
8861                 return -EINVAL;
8862
8863         if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
8864                 return 0;
8865
8866         if (wrqu->retry.value < 0 || wrqu->retry.value > 255)
8867                 return -EINVAL;
8868
8869         down(&priv->sem);
8870         if (wrqu->retry.flags & IW_RETRY_MIN)
8871                 priv->short_retry_limit = (u8) wrqu->retry.value;
8872         else if (wrqu->retry.flags & IW_RETRY_MAX)
8873                 priv->long_retry_limit = (u8) wrqu->retry.value;
8874         else {
8875                 priv->short_retry_limit = (u8) wrqu->retry.value;
8876                 priv->long_retry_limit = (u8) wrqu->retry.value;
8877         }
8878
8879         ipw_send_retry_limit(priv, priv->short_retry_limit,
8880                              priv->long_retry_limit);
8881         up(&priv->sem);
8882         IPW_DEBUG_WX("SET retry limit -> short:%d long:%d\n",
8883                      priv->short_retry_limit, priv->long_retry_limit);
8884         return 0;
8885 }
8886
8887 static int ipw_wx_get_retry(struct net_device *dev,
8888                             struct iw_request_info *info,
8889                             union iwreq_data *wrqu, char *extra)
8890 {
8891         struct ipw_priv *priv = ieee80211_priv(dev);
8892
8893         down(&priv->sem);
8894         wrqu->retry.disabled = 0;
8895
8896         if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
8897                 up(&priv->sem);
8898                 return -EINVAL;
8899         }
8900
8901         if (wrqu->retry.flags & IW_RETRY_MAX) {
8902                 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
8903                 wrqu->retry.value = priv->long_retry_limit;
8904         } else if (wrqu->retry.flags & IW_RETRY_MIN) {
8905                 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
8906                 wrqu->retry.value = priv->short_retry_limit;
8907         } else {
8908                 wrqu->retry.flags = IW_RETRY_LIMIT;
8909                 wrqu->retry.value = priv->short_retry_limit;
8910         }
8911         up(&priv->sem);
8912
8913         IPW_DEBUG_WX("GET retry -> %d \n", wrqu->retry.value);
8914
8915         return 0;
8916 }
8917
8918 static int ipw_request_direct_scan(struct ipw_priv *priv, char *essid,
8919                                    int essid_len)
8920 {
8921         struct ipw_scan_request_ext scan;
8922         int err = 0, scan_type;
8923
8924         if (!(priv->status & STATUS_INIT) ||
8925             (priv->status & STATUS_EXIT_PENDING))
8926                 return 0;
8927
8928         down(&priv->sem);
8929
8930         if (priv->status & STATUS_RF_KILL_MASK) {
8931                 IPW_DEBUG_HC("Aborting scan due to RF kill activation\n");
8932                 priv->status |= STATUS_SCAN_PENDING;
8933                 goto done;
8934         }
8935
8936         IPW_DEBUG_HC("starting request direct scan!\n");
8937
8938         if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
8939                 err = wait_event_interruptible(priv->wait_state,
8940                                                !(priv->
8941                                                  status & (STATUS_SCANNING |
8942                                                            STATUS_SCAN_ABORTING)));
8943                 if (err) {
8944                         IPW_DEBUG_HC("aborting direct scan");
8945                         goto done;
8946                 }
8947         }
8948         memset(&scan, 0, sizeof(scan));
8949
8950         if (priv->config & CFG_SPEED_SCAN)
8951                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
8952                     cpu_to_le16(30);
8953         else
8954                 scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_SCAN] =
8955                     cpu_to_le16(20);
8956
8957         scan.dwell_time[IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN] =
8958             cpu_to_le16(20);
8959         scan.dwell_time[IPW_SCAN_PASSIVE_FULL_DWELL_SCAN] = cpu_to_le16(120);
8960         scan.dwell_time[IPW_SCAN_ACTIVE_DIRECT_SCAN] = cpu_to_le16(20);
8961
8962         scan.full_scan_index = cpu_to_le32(ieee80211_get_scans(priv->ieee));
8963
8964         err = ipw_send_ssid(priv, essid, essid_len);
8965         if (err) {
8966                 IPW_DEBUG_HC("Attempt to send SSID command failed\n");
8967                 goto done;
8968         }
8969         scan_type = IPW_SCAN_ACTIVE_BROADCAST_AND_DIRECT_SCAN;
8970
8971         ipw_add_scan_channels(priv, &scan, scan_type);
8972
8973         err = ipw_send_scan_request_ext(priv, &scan);
8974         if (err) {
8975                 IPW_DEBUG_HC("Sending scan command failed: %08X\n", err);
8976                 goto done;
8977         }
8978
8979         priv->status |= STATUS_SCANNING;
8980
8981       done:
8982         up(&priv->sem);
8983         return err;
8984 }
8985
8986 static int ipw_wx_set_scan(struct net_device *dev,
8987                            struct iw_request_info *info,
8988                            union iwreq_data *wrqu, char *extra)
8989 {
8990         struct ipw_priv *priv = ieee80211_priv(dev);
8991         struct iw_scan_req *req = NULL;
8992         if (wrqu->data.length
8993             && wrqu->data.length == sizeof(struct iw_scan_req)) {
8994                 req = (struct iw_scan_req *)extra;
8995                 if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
8996                         ipw_request_direct_scan(priv, req->essid,
8997                                                 req->essid_len);
8998                         return 0;
8999                 }
9000         }
9001
9002         IPW_DEBUG_WX("Start scan\n");
9003
9004         queue_work(priv->workqueue, &priv->request_scan);
9005
9006         return 0;
9007 }
9008
9009 static int ipw_wx_get_scan(struct net_device *dev,
9010                            struct iw_request_info *info,
9011                            union iwreq_data *wrqu, char *extra)
9012 {
9013         struct ipw_priv *priv = ieee80211_priv(dev);
9014         return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
9015 }
9016
9017 static int ipw_wx_set_encode(struct net_device *dev,
9018                              struct iw_request_info *info,
9019                              union iwreq_data *wrqu, char *key)
9020 {
9021         struct ipw_priv *priv = ieee80211_priv(dev);
9022         int ret;
9023         u32 cap = priv->capability;
9024
9025         down(&priv->sem);
9026         ret = ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
9027
9028         /* In IBSS mode, we need to notify the firmware to update
9029          * the beacon info after we changed the capability. */
9030         if (cap != priv->capability &&
9031             priv->ieee->iw_mode == IW_MODE_ADHOC &&
9032             priv->status & STATUS_ASSOCIATED)
9033                 ipw_disassociate(priv);
9034
9035         up(&priv->sem);
9036         return ret;
9037 }
9038
9039 static int ipw_wx_get_encode(struct net_device *dev,
9040                              struct iw_request_info *info,
9041                              union iwreq_data *wrqu, char *key)
9042 {
9043         struct ipw_priv *priv = ieee80211_priv(dev);
9044         return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
9045 }
9046
9047 static int ipw_wx_set_power(struct net_device *dev,
9048                             struct iw_request_info *info,
9049                             union iwreq_data *wrqu, char *extra)
9050 {
9051         struct ipw_priv *priv = ieee80211_priv(dev);
9052         int err;
9053         down(&priv->sem);
9054         if (wrqu->power.disabled) {
9055                 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
9056                 err = ipw_send_power_mode(priv, IPW_POWER_MODE_CAM);
9057                 if (err) {
9058                         IPW_DEBUG_WX("failed setting power mode.\n");
9059                         up(&priv->sem);
9060                         return err;
9061                 }
9062                 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
9063                 up(&priv->sem);
9064                 return 0;
9065         }
9066
9067         switch (wrqu->power.flags & IW_POWER_MODE) {
9068         case IW_POWER_ON:       /* If not specified */
9069         case IW_POWER_MODE:     /* If set all mask */
9070         case IW_POWER_ALL_R:    /* If explicitely state all */
9071                 break;
9072         default:                /* Otherwise we don't support it */
9073                 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
9074                              wrqu->power.flags);
9075                 up(&priv->sem);
9076                 return -EOPNOTSUPP;
9077         }
9078
9079         /* If the user hasn't specified a power management mode yet, default
9080          * to BATTERY */
9081         if (IPW_POWER_LEVEL(priv->power_mode) == IPW_POWER_AC)
9082                 priv->power_mode = IPW_POWER_ENABLED | IPW_POWER_BATTERY;
9083         else
9084                 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
9085         err = ipw_send_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
9086         if (err) {
9087                 IPW_DEBUG_WX("failed setting power mode.\n");
9088                 up(&priv->sem);
9089                 return err;
9090         }
9091
9092         IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
9093         up(&priv->sem);
9094         return 0;
9095 }
9096
9097 static int ipw_wx_get_power(struct net_device *dev,
9098                             struct iw_request_info *info,
9099                             union iwreq_data *wrqu, char *extra)
9100 {
9101         struct ipw_priv *priv = ieee80211_priv(dev);
9102         down(&priv->sem);
9103         if (!(priv->power_mode & IPW_POWER_ENABLED))
9104                 wrqu->power.disabled = 1;
9105         else
9106                 wrqu->power.disabled = 0;
9107
9108         up(&priv->sem);
9109         IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
9110
9111         return 0;
9112 }
9113
9114 static int ipw_wx_set_powermode(struct net_device *dev,
9115                                 struct iw_request_info *info,
9116                                 union iwreq_data *wrqu, char *extra)
9117 {
9118         struct ipw_priv *priv = ieee80211_priv(dev);
9119         int mode = *(int *)extra;
9120         int err;
9121         down(&priv->sem);
9122         if ((mode < 1) || (mode > IPW_POWER_LIMIT)) {
9123                 mode = IPW_POWER_AC;
9124                 priv->power_mode = mode;
9125         } else {
9126                 priv->power_mode = IPW_POWER_ENABLED | mode;
9127         }
9128
9129         if (priv->power_mode != mode) {
9130                 err = ipw_send_power_mode(priv, mode);
9131
9132                 if (err) {
9133                         IPW_DEBUG_WX("failed setting power mode.\n");
9134                         up(&priv->sem);
9135                         return err;
9136                 }
9137         }
9138         up(&priv->sem);
9139         return 0;
9140 }
9141
9142 #define MAX_WX_STRING 80
9143 static int ipw_wx_get_powermode(struct net_device *dev,
9144                                 struct iw_request_info *info,
9145                                 union iwreq_data *wrqu, char *extra)
9146 {
9147         struct ipw_priv *priv = ieee80211_priv(dev);
9148         int level = IPW_POWER_LEVEL(priv->power_mode);
9149         char *p = extra;
9150
9151         p += snprintf(p, MAX_WX_STRING, "Power save level: %d ", level);
9152
9153         switch (level) {
9154         case IPW_POWER_AC:
9155                 p += snprintf(p, MAX_WX_STRING - (p - extra), "(AC)");
9156                 break;
9157         case IPW_POWER_BATTERY:
9158                 p += snprintf(p, MAX_WX_STRING - (p - extra), "(BATTERY)");
9159                 break;
9160         default:
9161                 p += snprintf(p, MAX_WX_STRING - (p - extra),
9162                               "(Timeout %dms, Period %dms)",
9163                               timeout_duration[level - 1] / 1000,
9164                               period_duration[level - 1] / 1000);
9165         }
9166
9167         if (!(priv->power_mode & IPW_POWER_ENABLED))
9168                 p += snprintf(p, MAX_WX_STRING - (p - extra), " OFF");
9169
9170         wrqu->data.length = p - extra + 1;
9171
9172         return 0;
9173 }
9174
9175 static int ipw_wx_set_wireless_mode(struct net_device *dev,
9176                                     struct iw_request_info *info,
9177                                     union iwreq_data *wrqu, char *extra)
9178 {
9179         struct ipw_priv *priv = ieee80211_priv(dev);
9180         int mode = *(int *)extra;
9181         u8 band = 0, modulation = 0;
9182
9183         if (mode == 0 || mode & ~IEEE_MODE_MASK) {
9184                 IPW_WARNING("Attempt to set invalid wireless mode: %d\n", mode);
9185                 return -EINVAL;
9186         }
9187         down(&priv->sem);
9188         if (priv->adapter == IPW_2915ABG) {
9189                 priv->ieee->abg_true = 1;
9190                 if (mode & IEEE_A) {
9191                         band |= IEEE80211_52GHZ_BAND;
9192                         modulation |= IEEE80211_OFDM_MODULATION;
9193                 } else
9194                         priv->ieee->abg_true = 0;
9195         } else {
9196                 if (mode & IEEE_A) {
9197                         IPW_WARNING("Attempt to set 2200BG into "
9198                                     "802.11a mode\n");
9199                         up(&priv->sem);
9200                         return -EINVAL;
9201                 }
9202
9203                 priv->ieee->abg_true = 0;
9204         }
9205
9206         if (mode & IEEE_B) {
9207                 band |= IEEE80211_24GHZ_BAND;
9208                 modulation |= IEEE80211_CCK_MODULATION;
9209         } else
9210                 priv->ieee->abg_true = 0;
9211
9212         if (mode & IEEE_G) {
9213                 band |= IEEE80211_24GHZ_BAND;
9214                 modulation |= IEEE80211_OFDM_MODULATION;
9215         } else
9216                 priv->ieee->abg_true = 0;
9217
9218         priv->ieee->mode = mode;
9219         priv->ieee->freq_band = band;
9220         priv->ieee->modulation = modulation;
9221         init_supported_rates(priv, &priv->rates);
9222
9223         /* Network configuration changed -- force [re]association */
9224         IPW_DEBUG_ASSOC("[re]association triggered due to mode change.\n");
9225         if (!ipw_disassociate(priv)) {
9226                 ipw_send_supported_rates(priv, &priv->rates);
9227                 ipw_associate(priv);
9228         }
9229
9230         /* Update the band LEDs */
9231         ipw_led_band_on(priv);
9232
9233         IPW_DEBUG_WX("PRIV SET MODE: %c%c%c\n",
9234                      mode & IEEE_A ? 'a' : '.',
9235                      mode & IEEE_B ? 'b' : '.', mode & IEEE_G ? 'g' : '.');
9236         up(&priv->sem);
9237         return 0;
9238 }
9239
9240 static int ipw_wx_get_wireless_mode(struct net_device *dev,
9241                                     struct iw_request_info *info,
9242                                     union iwreq_data *wrqu, char *extra)
9243 {
9244         struct ipw_priv *priv = ieee80211_priv(dev);
9245         down(&priv->sem);
9246         switch (priv->ieee->mode) {
9247         case IEEE_A:
9248                 strncpy(extra, "802.11a (1)", MAX_WX_STRING);
9249                 break;
9250         case IEEE_B:
9251                 strncpy(extra, "802.11b (2)", MAX_WX_STRING);
9252                 break;
9253         case IEEE_A | IEEE_B:
9254                 strncpy(extra, "802.11ab (3)", MAX_WX_STRING);
9255                 break;
9256         case IEEE_G:
9257                 strncpy(extra, "802.11g (4)", MAX_WX_STRING);
9258                 break;
9259         case IEEE_A | IEEE_G:
9260                 strncpy(extra, "802.11ag (5)", MAX_WX_STRING);
9261                 break;
9262         case IEEE_B | IEEE_G:
9263                 strncpy(extra, "802.11bg (6)", MAX_WX_STRING);
9264                 break;
9265         case IEEE_A | IEEE_B | IEEE_G:
9266                 strncpy(extra, "802.11abg (7)", MAX_WX_STRING);
9267                 break;
9268         default:
9269                 strncpy(extra, "unknown", MAX_WX_STRING);
9270                 break;
9271         }
9272
9273         IPW_DEBUG_WX("PRIV GET MODE: %s\n", extra);
9274
9275         wrqu->data.length = strlen(extra) + 1;
9276         up(&priv->sem);
9277
9278         return 0;
9279 }
9280
9281 static int ipw_wx_set_preamble(struct net_device *dev,
9282                                struct iw_request_info *info,
9283                                union iwreq_data *wrqu, char *extra)
9284 {
9285         struct ipw_priv *priv = ieee80211_priv(dev);
9286         int mode = *(int *)extra;
9287         down(&priv->sem);
9288         /* Switching from SHORT -> LONG requires a disassociation */
9289         if (mode == 1) {
9290                 if (!(priv->config & CFG_PREAMBLE_LONG)) {
9291                         priv->config |= CFG_PREAMBLE_LONG;
9292
9293                         /* Network configuration changed -- force [re]association */
9294                         IPW_DEBUG_ASSOC
9295                             ("[re]association triggered due to preamble change.\n");
9296                         if (!ipw_disassociate(priv))
9297                                 ipw_associate(priv);
9298                 }
9299                 goto done;
9300         }
9301
9302         if (mode == 0) {
9303                 priv->config &= ~CFG_PREAMBLE_LONG;
9304                 goto done;
9305         }
9306         up(&priv->sem);
9307         return -EINVAL;
9308
9309       done:
9310         up(&priv->sem);
9311         return 0;
9312 }
9313
9314 static int ipw_wx_get_preamble(struct net_device *dev,
9315                                struct iw_request_info *info,
9316                                union iwreq_data *wrqu, char *extra)
9317 {
9318         struct ipw_priv *priv = ieee80211_priv(dev);
9319         down(&priv->sem);
9320         if (priv->config & CFG_PREAMBLE_LONG)
9321                 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
9322         else
9323                 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
9324         up(&priv->sem);
9325         return 0;
9326 }
9327
9328 #ifdef CONFIG_IPW2200_MONITOR
9329 static int ipw_wx_set_monitor(struct net_device *dev,
9330                               struct iw_request_info *info,
9331                               union iwreq_data *wrqu, char *extra)
9332 {
9333         struct ipw_priv *priv = ieee80211_priv(dev);
9334         int *parms = (int *)extra;
9335         int enable = (parms[0] > 0);
9336         down(&priv->sem);
9337         IPW_DEBUG_WX("SET MONITOR: %d %d\n", enable, parms[1]);
9338         if (enable) {
9339                 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9340 #ifdef CONFIG_IEEE80211_RADIOTAP
9341                         priv->net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
9342 #else
9343                         priv->net_dev->type = ARPHRD_IEEE80211;
9344 #endif
9345                         queue_work(priv->workqueue, &priv->adapter_restart);
9346                 }
9347
9348                 ipw_set_channel(priv, parms[1]);
9349         } else {
9350                 if (priv->ieee->iw_mode != IW_MODE_MONITOR) {
9351                         up(&priv->sem);
9352                         return 0;
9353                 }
9354                 priv->net_dev->type = ARPHRD_ETHER;
9355                 queue_work(priv->workqueue, &priv->adapter_restart);
9356         }
9357         up(&priv->sem);
9358         return 0;
9359 }
9360
9361 #endif                          // CONFIG_IPW2200_MONITOR
9362
9363 static int ipw_wx_reset(struct net_device *dev,
9364                         struct iw_request_info *info,
9365                         union iwreq_data *wrqu, char *extra)
9366 {
9367         struct ipw_priv *priv = ieee80211_priv(dev);
9368         IPW_DEBUG_WX("RESET\n");
9369         queue_work(priv->workqueue, &priv->adapter_restart);
9370         return 0;
9371 }
9372
9373 static int ipw_wx_sw_reset(struct net_device *dev,
9374                            struct iw_request_info *info,
9375                            union iwreq_data *wrqu, char *extra)
9376 {
9377         struct ipw_priv *priv = ieee80211_priv(dev);
9378         union iwreq_data wrqu_sec = {
9379                 .encoding = {
9380                              .flags = IW_ENCODE_DISABLED,
9381                              },
9382         };
9383         int ret;
9384
9385         IPW_DEBUG_WX("SW_RESET\n");
9386
9387         down(&priv->sem);
9388
9389         ret = ipw_sw_reset(priv, 0);
9390         if (!ret) {
9391                 free_firmware();
9392                 ipw_adapter_restart(priv);
9393         }
9394
9395         /* The SW reset bit might have been toggled on by the 'disable'
9396          * module parameter, so take appropriate action */
9397         ipw_radio_kill_sw(priv, priv->status & STATUS_RF_KILL_SW);
9398
9399         up(&priv->sem);
9400         ieee80211_wx_set_encode(priv->ieee, info, &wrqu_sec, NULL);
9401         down(&priv->sem);
9402
9403         if (!(priv->status & STATUS_RF_KILL_MASK)) {
9404                 /* Configuration likely changed -- force [re]association */
9405                 IPW_DEBUG_ASSOC("[re]association triggered due to sw "
9406                                 "reset.\n");
9407                 if (!ipw_disassociate(priv))
9408                         ipw_associate(priv);
9409         }
9410
9411         up(&priv->sem);
9412
9413         return 0;
9414 }
9415
9416 /* Rebase the WE IOCTLs to zero for the handler array */
9417 #define IW_IOCTL(x) [(x)-SIOCSIWCOMMIT]
9418 static iw_handler ipw_wx_handlers[] = {
9419         IW_IOCTL(SIOCGIWNAME) = ipw_wx_get_name,
9420         IW_IOCTL(SIOCSIWFREQ) = ipw_wx_set_freq,
9421         IW_IOCTL(SIOCGIWFREQ) = ipw_wx_get_freq,
9422         IW_IOCTL(SIOCSIWMODE) = ipw_wx_set_mode,
9423         IW_IOCTL(SIOCGIWMODE) = ipw_wx_get_mode,
9424         IW_IOCTL(SIOCGIWRANGE) = ipw_wx_get_range,
9425         IW_IOCTL(SIOCSIWAP) = ipw_wx_set_wap,
9426         IW_IOCTL(SIOCGIWAP) = ipw_wx_get_wap,
9427         IW_IOCTL(SIOCSIWSCAN) = ipw_wx_set_scan,
9428         IW_IOCTL(SIOCGIWSCAN) = ipw_wx_get_scan,
9429         IW_IOCTL(SIOCSIWESSID) = ipw_wx_set_essid,
9430         IW_IOCTL(SIOCGIWESSID) = ipw_wx_get_essid,
9431         IW_IOCTL(SIOCSIWNICKN) = ipw_wx_set_nick,
9432         IW_IOCTL(SIOCGIWNICKN) = ipw_wx_get_nick,
9433         IW_IOCTL(SIOCSIWRATE) = ipw_wx_set_rate,
9434         IW_IOCTL(SIOCGIWRATE) = ipw_wx_get_rate,
9435         IW_IOCTL(SIOCSIWRTS) = ipw_wx_set_rts,
9436         IW_IOCTL(SIOCGIWRTS) = ipw_wx_get_rts,
9437         IW_IOCTL(SIOCSIWFRAG) = ipw_wx_set_frag,
9438         IW_IOCTL(SIOCGIWFRAG) = ipw_wx_get_frag,
9439         IW_IOCTL(SIOCSIWTXPOW) = ipw_wx_set_txpow,
9440         IW_IOCTL(SIOCGIWTXPOW) = ipw_wx_get_txpow,
9441         IW_IOCTL(SIOCSIWRETRY) = ipw_wx_set_retry,
9442         IW_IOCTL(SIOCGIWRETRY) = ipw_wx_get_retry,
9443         IW_IOCTL(SIOCSIWENCODE) = ipw_wx_set_encode,
9444         IW_IOCTL(SIOCGIWENCODE) = ipw_wx_get_encode,
9445         IW_IOCTL(SIOCSIWPOWER) = ipw_wx_set_power,
9446         IW_IOCTL(SIOCGIWPOWER) = ipw_wx_get_power,
9447         IW_IOCTL(SIOCSIWSPY) = iw_handler_set_spy,
9448         IW_IOCTL(SIOCGIWSPY) = iw_handler_get_spy,
9449         IW_IOCTL(SIOCSIWTHRSPY) = iw_handler_set_thrspy,
9450         IW_IOCTL(SIOCGIWTHRSPY) = iw_handler_get_thrspy,
9451         IW_IOCTL(SIOCSIWGENIE) = ipw_wx_set_genie,
9452         IW_IOCTL(SIOCGIWGENIE) = ipw_wx_get_genie,
9453         IW_IOCTL(SIOCSIWMLME) = ipw_wx_set_mlme,
9454         IW_IOCTL(SIOCSIWAUTH) = ipw_wx_set_auth,
9455         IW_IOCTL(SIOCGIWAUTH) = ipw_wx_get_auth,
9456         IW_IOCTL(SIOCSIWENCODEEXT) = ipw_wx_set_encodeext,
9457         IW_IOCTL(SIOCGIWENCODEEXT) = ipw_wx_get_encodeext,
9458 };
9459
9460 enum {
9461         IPW_PRIV_SET_POWER = SIOCIWFIRSTPRIV,
9462         IPW_PRIV_GET_POWER,
9463         IPW_PRIV_SET_MODE,
9464         IPW_PRIV_GET_MODE,
9465         IPW_PRIV_SET_PREAMBLE,
9466         IPW_PRIV_GET_PREAMBLE,
9467         IPW_PRIV_RESET,
9468         IPW_PRIV_SW_RESET,
9469 #ifdef CONFIG_IPW2200_MONITOR
9470         IPW_PRIV_SET_MONITOR,
9471 #endif
9472 };
9473
9474 static struct iw_priv_args ipw_priv_args[] = {
9475         {
9476          .cmd = IPW_PRIV_SET_POWER,
9477          .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9478          .name = "set_power"},
9479         {
9480          .cmd = IPW_PRIV_GET_POWER,
9481          .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9482          .name = "get_power"},
9483         {
9484          .cmd = IPW_PRIV_SET_MODE,
9485          .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9486          .name = "set_mode"},
9487         {
9488          .cmd = IPW_PRIV_GET_MODE,
9489          .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_WX_STRING,
9490          .name = "get_mode"},
9491         {
9492          .cmd = IPW_PRIV_SET_PREAMBLE,
9493          .set_args = IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
9494          .name = "set_preamble"},
9495         {
9496          .cmd = IPW_PRIV_GET_PREAMBLE,
9497          .get_args = IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ,
9498          .name = "get_preamble"},
9499         {
9500          IPW_PRIV_RESET,
9501          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
9502         {
9503          IPW_PRIV_SW_RESET,
9504          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "sw_reset"},
9505 #ifdef CONFIG_IPW2200_MONITOR
9506         {
9507          IPW_PRIV_SET_MONITOR,
9508          IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
9509 #endif                          /* CONFIG_IPW2200_MONITOR */
9510 };
9511
9512 static iw_handler ipw_priv_handler[] = {
9513         ipw_wx_set_powermode,
9514         ipw_wx_get_powermode,
9515         ipw_wx_set_wireless_mode,
9516         ipw_wx_get_wireless_mode,
9517         ipw_wx_set_preamble,
9518         ipw_wx_get_preamble,
9519         ipw_wx_reset,
9520         ipw_wx_sw_reset,
9521 #ifdef CONFIG_IPW2200_MONITOR
9522         ipw_wx_set_monitor,
9523 #endif
9524 };
9525
9526 static struct iw_handler_def ipw_wx_handler_def = {
9527         .standard = ipw_wx_handlers,
9528         .num_standard = ARRAY_SIZE(ipw_wx_handlers),
9529         .num_private = ARRAY_SIZE(ipw_priv_handler),
9530         .num_private_args = ARRAY_SIZE(ipw_priv_args),
9531         .private = ipw_priv_handler,
9532         .private_args = ipw_priv_args,
9533         .get_wireless_stats = ipw_get_wireless_stats,
9534 };
9535
9536 /*
9537  * Get wireless statistics.
9538  * Called by /proc/net/wireless
9539  * Also called by SIOCGIWSTATS
9540  */
9541 static struct iw_statistics *ipw_get_wireless_stats(struct net_device *dev)
9542 {
9543         struct ipw_priv *priv = ieee80211_priv(dev);
9544         struct iw_statistics *wstats;
9545
9546         wstats = &priv->wstats;
9547
9548         /* if hw is disabled, then ipw_get_ordinal() can't be called.
9549          * netdev->get_wireless_stats seems to be called before fw is
9550          * initialized.  STATUS_ASSOCIATED will only be set if the hw is up
9551          * and associated; if not associcated, the values are all meaningless
9552          * anyway, so set them all to NULL and INVALID */
9553         if (!(priv->status & STATUS_ASSOCIATED)) {
9554                 wstats->miss.beacon = 0;
9555                 wstats->discard.retries = 0;
9556                 wstats->qual.qual = 0;
9557                 wstats->qual.level = 0;
9558                 wstats->qual.noise = 0;
9559                 wstats->qual.updated = 7;
9560                 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
9561                     IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
9562                 return wstats;
9563         }
9564
9565         wstats->qual.qual = priv->quality;
9566         wstats->qual.level = average_value(&priv->average_rssi);
9567         wstats->qual.noise = average_value(&priv->average_noise);
9568         wstats->qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
9569             IW_QUAL_NOISE_UPDATED;
9570
9571         wstats->miss.beacon = average_value(&priv->average_missed_beacons);
9572         wstats->discard.retries = priv->last_tx_failures;
9573         wstats->discard.code = priv->ieee->ieee_stats.rx_discards_undecryptable;
9574
9575 /*      if (ipw_get_ordinal(priv, IPW_ORD_STAT_TX_RETRY, &tx_retry, &len))
9576         goto fail_get_ordinal;
9577         wstats->discard.retries += tx_retry; */
9578
9579         return wstats;
9580 }
9581
9582 /* net device stuff */
9583
9584 static inline void init_sys_config(struct ipw_sys_config *sys_config)
9585 {
9586         memset(sys_config, 0, sizeof(struct ipw_sys_config));
9587         sys_config->bt_coexistence = 1; /* We may need to look into prvStaBtConfig */
9588         sys_config->answer_broadcast_ssid_probe = 0;
9589         sys_config->accept_all_data_frames = 0;
9590         sys_config->accept_non_directed_frames = 1;
9591         sys_config->exclude_unicast_unencrypted = 0;
9592         sys_config->disable_unicast_decryption = 1;
9593         sys_config->exclude_multicast_unencrypted = 0;
9594         sys_config->disable_multicast_decryption = 1;
9595         sys_config->antenna_diversity = CFG_SYS_ANTENNA_BOTH;
9596         sys_config->pass_crc_to_host = 0;       /* TODO: See if 1 gives us FCS */
9597         sys_config->dot11g_auto_detection = 0;
9598         sys_config->enable_cts_to_self = 0;
9599         sys_config->bt_coexist_collision_thr = 0;
9600         sys_config->pass_noise_stats_to_host = 1;       //1 -- fix for 256
9601 }
9602
9603 static int ipw_net_open(struct net_device *dev)
9604 {
9605         struct ipw_priv *priv = ieee80211_priv(dev);
9606         IPW_DEBUG_INFO("dev->open\n");
9607         /* we should be verifying the device is ready to be opened */
9608         down(&priv->sem);
9609         if (!(priv->status & STATUS_RF_KILL_MASK) &&
9610             (priv->status & STATUS_ASSOCIATED))
9611                 netif_start_queue(dev);
9612         up(&priv->sem);
9613         return 0;
9614 }
9615
9616 static int ipw_net_stop(struct net_device *dev)
9617 {
9618         IPW_DEBUG_INFO("dev->close\n");
9619         netif_stop_queue(dev);
9620         return 0;
9621 }
9622
9623 /*
9624 todo:
9625
9626 modify to send one tfd per fragment instead of using chunking.  otherwise
9627 we need to heavily modify the ieee80211_skb_to_txb.
9628 */
9629
9630 static inline int ipw_tx_skb(struct ipw_priv *priv, struct ieee80211_txb *txb,
9631                              int pri)
9632 {
9633         struct ieee80211_hdr_3addr *hdr = (struct ieee80211_hdr_3addr *)
9634             txb->fragments[0]->data;
9635         int i = 0;
9636         struct tfd_frame *tfd;
9637 #ifdef CONFIG_IPW_QOS
9638         int tx_id = ipw_get_tx_queue_number(priv, pri);
9639         struct clx2_tx_queue *txq = &priv->txq[tx_id];
9640 #else
9641         struct clx2_tx_queue *txq = &priv->txq[0];
9642 #endif
9643         struct clx2_queue *q = &txq->q;
9644         u8 id, hdr_len, unicast;
9645         u16 remaining_bytes;
9646         int fc;
9647
9648         /* If there isn't room in the queue, we return busy and let the
9649          * network stack requeue the packet for us */
9650         if (ipw_queue_space(q) < q->high_mark)
9651                 return NETDEV_TX_BUSY;
9652
9653         switch (priv->ieee->iw_mode) {
9654         case IW_MODE_ADHOC:
9655                 hdr_len = IEEE80211_3ADDR_LEN;
9656                 unicast = !is_multicast_ether_addr(hdr->addr1);
9657                 id = ipw_find_station(priv, hdr->addr1);
9658                 if (id == IPW_INVALID_STATION) {
9659                         id = ipw_add_station(priv, hdr->addr1);
9660                         if (id == IPW_INVALID_STATION) {
9661                                 IPW_WARNING("Attempt to send data to "
9662                                             "invalid cell: " MAC_FMT "\n",
9663                                             MAC_ARG(hdr->addr1));
9664                                 goto drop;
9665                         }
9666                 }
9667                 break;
9668
9669         case IW_MODE_INFRA:
9670         default:
9671                 unicast = !is_multicast_ether_addr(hdr->addr3);
9672                 hdr_len = IEEE80211_3ADDR_LEN;
9673                 id = 0;
9674                 break;
9675         }
9676
9677         tfd = &txq->bd[q->first_empty];
9678         txq->txb[q->first_empty] = txb;
9679         memset(tfd, 0, sizeof(*tfd));
9680         tfd->u.data.station_number = id;
9681
9682         tfd->control_flags.message_type = TX_FRAME_TYPE;
9683         tfd->control_flags.control_bits = TFD_NEED_IRQ_MASK;
9684
9685         tfd->u.data.cmd_id = DINO_CMD_TX;
9686         tfd->u.data.len = cpu_to_le16(txb->payload_size);
9687         remaining_bytes = txb->payload_size;
9688
9689         if (priv->assoc_request.ieee_mode == IPW_B_MODE)
9690                 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_CCK;
9691         else
9692                 tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_MODE_OFDM;
9693
9694         if (priv->assoc_request.preamble_length == DCT_FLAG_SHORT_PREAMBLE)
9695                 tfd->u.data.tx_flags |= DCT_FLAG_SHORT_PREAMBLE;
9696
9697         fc = le16_to_cpu(hdr->frame_ctl);
9698         hdr->frame_ctl = cpu_to_le16(fc & ~IEEE80211_FCTL_MOREFRAGS);
9699
9700         memcpy(&tfd->u.data.tfd.tfd_24.mchdr, hdr, hdr_len);
9701
9702         if (likely(unicast))
9703                 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
9704
9705         if (txb->encrypted && !priv->ieee->host_encrypt) {
9706                 switch (priv->ieee->sec.level) {
9707                 case SEC_LEVEL_3:
9708                         tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
9709                             IEEE80211_FCTL_PROTECTED;
9710                         /* XXX: ACK flag must be set for CCMP even if it
9711                          * is a multicast/broadcast packet, because CCMP
9712                          * group communication encrypted by GTK is
9713                          * actually done by the AP. */
9714                         if (!unicast)
9715                                 tfd->u.data.tx_flags |= DCT_FLAG_ACK_REQD;
9716
9717                         tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
9718                         tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_CCM;
9719                         tfd->u.data.key_index = 0;
9720                         tfd->u.data.key_index |= DCT_WEP_INDEX_USE_IMMEDIATE;
9721                         break;
9722                 case SEC_LEVEL_2:
9723                         tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
9724                             IEEE80211_FCTL_PROTECTED;
9725                         tfd->u.data.tx_flags &= ~DCT_FLAG_NO_WEP;
9726                         tfd->u.data.tx_flags_ext |= DCT_FLAG_EXT_SECURITY_TKIP;
9727                         tfd->u.data.key_index = DCT_WEP_INDEX_USE_IMMEDIATE;
9728                         break;
9729                 case SEC_LEVEL_1:
9730                         tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
9731                             IEEE80211_FCTL_PROTECTED;
9732                         tfd->u.data.key_index = priv->ieee->tx_keyidx;
9733                         if (priv->ieee->sec.key_sizes[priv->ieee->tx_keyidx] <=
9734                             40)
9735                                 tfd->u.data.key_index |= DCT_WEP_KEY_64Bit;
9736                         else
9737                                 tfd->u.data.key_index |= DCT_WEP_KEY_128Bit;
9738                         break;
9739                 case SEC_LEVEL_0:
9740                         break;
9741                 default:
9742                         printk(KERN_ERR "Unknow security level %d\n",
9743                                priv->ieee->sec.level);
9744                         break;
9745                 }
9746         } else
9747                 /* No hardware encryption */
9748                 tfd->u.data.tx_flags |= DCT_FLAG_NO_WEP;
9749
9750 #ifdef CONFIG_IPW_QOS
9751         ipw_qos_set_tx_queue_command(priv, pri, &(tfd->u.data), unicast);
9752 #endif                          /* CONFIG_IPW_QOS */
9753
9754         /* payload */
9755         tfd->u.data.num_chunks = cpu_to_le32(min((u8) (NUM_TFD_CHUNKS - 2),
9756                                                  txb->nr_frags));
9757         IPW_DEBUG_FRAG("%i fragments being sent as %i chunks.\n",
9758                        txb->nr_frags, le32_to_cpu(tfd->u.data.num_chunks));
9759         for (i = 0; i < le32_to_cpu(tfd->u.data.num_chunks); i++) {
9760                 IPW_DEBUG_FRAG("Adding fragment %i of %i (%d bytes).\n",
9761                                i, le32_to_cpu(tfd->u.data.num_chunks),
9762                                txb->fragments[i]->len - hdr_len);
9763                 IPW_DEBUG_TX("Dumping TX packet frag %i of %i (%d bytes):\n",
9764                              i, tfd->u.data.num_chunks,
9765                              txb->fragments[i]->len - hdr_len);
9766                 printk_buf(IPW_DL_TX, txb->fragments[i]->data + hdr_len,
9767                            txb->fragments[i]->len - hdr_len);
9768
9769                 tfd->u.data.chunk_ptr[i] =
9770                     cpu_to_le32(pci_map_single
9771                                 (priv->pci_dev,
9772                                  txb->fragments[i]->data + hdr_len,
9773                                  txb->fragments[i]->len - hdr_len,
9774                                  PCI_DMA_TODEVICE));
9775                 tfd->u.data.chunk_len[i] =
9776                     cpu_to_le16(txb->fragments[i]->len - hdr_len);
9777         }
9778
9779         if (i != txb->nr_frags) {
9780                 struct sk_buff *skb;
9781                 u16 remaining_bytes = 0;
9782                 int j;
9783
9784                 for (j = i; j < txb->nr_frags; j++)
9785                         remaining_bytes += txb->fragments[j]->len - hdr_len;
9786
9787                 printk(KERN_INFO "Trying to reallocate for %d bytes\n",
9788                        remaining_bytes);
9789                 skb = alloc_skb(remaining_bytes, GFP_ATOMIC);
9790                 if (skb != NULL) {
9791                         tfd->u.data.chunk_len[i] = cpu_to_le16(remaining_bytes);
9792                         for (j = i; j < txb->nr_frags; j++) {
9793                                 int size = txb->fragments[j]->len - hdr_len;
9794
9795                                 printk(KERN_INFO "Adding frag %d %d...\n",
9796                                        j, size);
9797                                 memcpy(skb_put(skb, size),
9798                                        txb->fragments[j]->data + hdr_len, size);
9799                         }
9800                         dev_kfree_skb_any(txb->fragments[i]);
9801                         txb->fragments[i] = skb;
9802                         tfd->u.data.chunk_ptr[i] =
9803                             cpu_to_le32(pci_map_single
9804                                         (priv->pci_dev, skb->data,
9805                                          tfd->u.data.chunk_len[i],
9806                                          PCI_DMA_TODEVICE));
9807
9808                         tfd->u.data.num_chunks =
9809                             cpu_to_le32(le32_to_cpu(tfd->u.data.num_chunks) +
9810                                         1);
9811                 }
9812         }
9813
9814         /* kick DMA */
9815         q->first_empty = ipw_queue_inc_wrap(q->first_empty, q->n_bd);
9816         ipw_write32(priv, q->reg_w, q->first_empty);
9817
9818         return NETDEV_TX_OK;
9819
9820       drop:
9821         IPW_DEBUG_DROP("Silently dropping Tx packet.\n");
9822         ieee80211_txb_free(txb);
9823         return NETDEV_TX_OK;
9824 }
9825
9826 static int ipw_net_is_queue_full(struct net_device *dev, int pri)
9827 {
9828         struct ipw_priv *priv = ieee80211_priv(dev);
9829 #ifdef CONFIG_IPW_QOS
9830         int tx_id = ipw_get_tx_queue_number(priv, pri);
9831         struct clx2_tx_queue *txq = &priv->txq[tx_id];
9832 #else
9833         struct clx2_tx_queue *txq = &priv->txq[0];
9834 #endif                          /* CONFIG_IPW_QOS */
9835
9836         if (ipw_queue_space(&txq->q) < txq->q.high_mark)
9837                 return 1;
9838
9839         return 0;
9840 }
9841
9842 static int ipw_net_hard_start_xmit(struct ieee80211_txb *txb,
9843                                    struct net_device *dev, int pri)
9844 {
9845         struct ipw_priv *priv = ieee80211_priv(dev);
9846         unsigned long flags;
9847         int ret;
9848
9849         IPW_DEBUG_TX("dev->xmit(%d bytes)\n", txb->payload_size);
9850         spin_lock_irqsave(&priv->lock, flags);
9851
9852         if (!(priv->status & STATUS_ASSOCIATED)) {
9853                 IPW_DEBUG_INFO("Tx attempt while not associated.\n");
9854                 priv->ieee->stats.tx_carrier_errors++;
9855                 netif_stop_queue(dev);
9856                 goto fail_unlock;
9857         }
9858
9859         ret = ipw_tx_skb(priv, txb, pri);
9860         if (ret == NETDEV_TX_OK)
9861                 __ipw_led_activity_on(priv);
9862         spin_unlock_irqrestore(&priv->lock, flags);
9863
9864         return ret;
9865
9866       fail_unlock:
9867         spin_unlock_irqrestore(&priv->lock, flags);
9868         return 1;
9869 }
9870
9871 static struct net_device_stats *ipw_net_get_stats(struct net_device *dev)
9872 {
9873         struct ipw_priv *priv = ieee80211_priv(dev);
9874
9875         priv->ieee->stats.tx_packets = priv->tx_packets;
9876         priv->ieee->stats.rx_packets = priv->rx_packets;
9877         return &priv->ieee->stats;
9878 }
9879
9880 static void ipw_net_set_multicast_list(struct net_device *dev)
9881 {
9882
9883 }
9884
9885 static int ipw_net_set_mac_address(struct net_device *dev, void *p)
9886 {
9887         struct ipw_priv *priv = ieee80211_priv(dev);
9888         struct sockaddr *addr = p;
9889         if (!is_valid_ether_addr(addr->sa_data))
9890                 return -EADDRNOTAVAIL;
9891         down(&priv->sem);
9892         priv->config |= CFG_CUSTOM_MAC;
9893         memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
9894         printk(KERN_INFO "%s: Setting MAC to " MAC_FMT "\n",
9895                priv->net_dev->name, MAC_ARG(priv->mac_addr));
9896         queue_work(priv->workqueue, &priv->adapter_restart);
9897         up(&priv->sem);
9898         return 0;
9899 }
9900
9901 static void ipw_ethtool_get_drvinfo(struct net_device *dev,
9902                                     struct ethtool_drvinfo *info)
9903 {
9904         struct ipw_priv *p = ieee80211_priv(dev);
9905         char vers[64];
9906         char date[32];
9907         u32 len;
9908
9909         strcpy(info->driver, DRV_NAME);
9910         strcpy(info->version, DRV_VERSION);
9911
9912         len = sizeof(vers);
9913         ipw_get_ordinal(p, IPW_ORD_STAT_FW_VERSION, vers, &len);
9914         len = sizeof(date);
9915         ipw_get_ordinal(p, IPW_ORD_STAT_FW_DATE, date, &len);
9916
9917         snprintf(info->fw_version, sizeof(info->fw_version), "%s (%s)",
9918                  vers, date);
9919         strcpy(info->bus_info, pci_name(p->pci_dev));
9920         info->eedump_len = IPW_EEPROM_IMAGE_SIZE;
9921 }
9922
9923 static u32 ipw_ethtool_get_link(struct net_device *dev)
9924 {
9925         struct ipw_priv *priv = ieee80211_priv(dev);
9926         return (priv->status & STATUS_ASSOCIATED) != 0;
9927 }
9928
9929 static int ipw_ethtool_get_eeprom_len(struct net_device *dev)
9930 {
9931         return IPW_EEPROM_IMAGE_SIZE;
9932 }
9933
9934 static int ipw_ethtool_get_eeprom(struct net_device *dev,
9935                                   struct ethtool_eeprom *eeprom, u8 * bytes)
9936 {
9937         struct ipw_priv *p = ieee80211_priv(dev);
9938
9939         if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
9940                 return -EINVAL;
9941         down(&p->sem);
9942         memcpy(bytes, &p->eeprom[eeprom->offset], eeprom->len);
9943         up(&p->sem);
9944         return 0;
9945 }
9946
9947 static int ipw_ethtool_set_eeprom(struct net_device *dev,
9948                                   struct ethtool_eeprom *eeprom, u8 * bytes)
9949 {
9950         struct ipw_priv *p = ieee80211_priv(dev);
9951         int i;
9952
9953         if (eeprom->offset + eeprom->len > IPW_EEPROM_IMAGE_SIZE)
9954                 return -EINVAL;
9955         down(&p->sem);
9956         memcpy(&p->eeprom[eeprom->offset], bytes, eeprom->len);
9957         for (i = IPW_EEPROM_DATA;
9958              i < IPW_EEPROM_DATA + IPW_EEPROM_IMAGE_SIZE; i++)
9959                 ipw_write8(p, i, p->eeprom[i]);
9960         up(&p->sem);
9961         return 0;
9962 }
9963
9964 static struct ethtool_ops ipw_ethtool_ops = {
9965         .get_link = ipw_ethtool_get_link,
9966         .get_drvinfo = ipw_ethtool_get_drvinfo,
9967         .get_eeprom_len = ipw_ethtool_get_eeprom_len,
9968         .get_eeprom = ipw_ethtool_get_eeprom,
9969         .set_eeprom = ipw_ethtool_set_eeprom,
9970 };
9971
9972 static irqreturn_t ipw_isr(int irq, void *data, struct pt_regs *regs)
9973 {
9974         struct ipw_priv *priv = data;
9975         u32 inta, inta_mask;
9976
9977         if (!priv)
9978                 return IRQ_NONE;
9979
9980         spin_lock(&priv->lock);
9981
9982         if (!(priv->status & STATUS_INT_ENABLED)) {
9983                 /* Shared IRQ */
9984                 goto none;
9985         }
9986
9987         inta = ipw_read32(priv, IPW_INTA_RW);
9988         inta_mask = ipw_read32(priv, IPW_INTA_MASK_R);
9989
9990         if (inta == 0xFFFFFFFF) {
9991                 /* Hardware disappeared */
9992                 IPW_WARNING("IRQ INTA == 0xFFFFFFFF\n");
9993                 goto none;
9994         }
9995
9996         if (!(inta & (IPW_INTA_MASK_ALL & inta_mask))) {
9997                 /* Shared interrupt */
9998                 goto none;
9999         }
10000
10001         /* tell the device to stop sending interrupts */
10002         ipw_disable_interrupts(priv);
10003
10004         /* ack current interrupts */
10005         inta &= (IPW_INTA_MASK_ALL & inta_mask);
10006         ipw_write32(priv, IPW_INTA_RW, inta);
10007
10008         /* Cache INTA value for our tasklet */
10009         priv->isr_inta = inta;
10010
10011         tasklet_schedule(&priv->irq_tasklet);
10012
10013         spin_unlock(&priv->lock);
10014
10015         return IRQ_HANDLED;
10016       none:
10017         spin_unlock(&priv->lock);
10018         return IRQ_NONE;
10019 }
10020
10021 static void ipw_rf_kill(void *adapter)
10022 {
10023         struct ipw_priv *priv = adapter;
10024         unsigned long flags;
10025
10026         spin_lock_irqsave(&priv->lock, flags);
10027
10028         if (rf_kill_active(priv)) {
10029                 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
10030                 if (priv->workqueue)
10031                         queue_delayed_work(priv->workqueue,
10032                                            &priv->rf_kill, 2 * HZ);
10033                 goto exit_unlock;
10034         }
10035
10036         /* RF Kill is now disabled, so bring the device back up */
10037
10038         if (!(priv->status & STATUS_RF_KILL_MASK)) {
10039                 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
10040                                   "device\n");
10041
10042                 /* we can not do an adapter restart while inside an irq lock */
10043                 queue_work(priv->workqueue, &priv->adapter_restart);
10044         } else
10045                 IPW_DEBUG_RF_KILL("HW RF Kill deactivated.  SW RF Kill still "
10046                                   "enabled\n");
10047
10048       exit_unlock:
10049         spin_unlock_irqrestore(&priv->lock, flags);
10050 }
10051
10052 static void ipw_bg_rf_kill(void *data)
10053 {
10054         struct ipw_priv *priv = data;
10055         down(&priv->sem);
10056         ipw_rf_kill(data);
10057         up(&priv->sem);
10058 }
10059
10060 void ipw_link_up(struct ipw_priv *priv)
10061 {
10062         priv->last_seq_num = -1;
10063         priv->last_frag_num = -1;
10064         priv->last_packet_time = 0;
10065
10066         netif_carrier_on(priv->net_dev);
10067         if (netif_queue_stopped(priv->net_dev)) {
10068                 IPW_DEBUG_NOTIF("waking queue\n");
10069                 netif_wake_queue(priv->net_dev);
10070         } else {
10071                 IPW_DEBUG_NOTIF("starting queue\n");
10072                 netif_start_queue(priv->net_dev);
10073         }
10074
10075         cancel_delayed_work(&priv->request_scan);
10076         ipw_reset_stats(priv);
10077         /* Ensure the rate is updated immediately */
10078         priv->last_rate = ipw_get_current_rate(priv);
10079         ipw_gather_stats(priv);
10080         ipw_led_link_up(priv);
10081         notify_wx_assoc_event(priv);
10082
10083         if (priv->config & CFG_BACKGROUND_SCAN)
10084                 queue_delayed_work(priv->workqueue, &priv->request_scan, HZ);
10085 }
10086
10087 static void ipw_bg_link_up(void *data)
10088 {
10089         struct ipw_priv *priv = data;
10090         down(&priv->sem);
10091         ipw_link_up(data);
10092         up(&priv->sem);
10093 }
10094
10095 void ipw_link_down(struct ipw_priv *priv)
10096 {
10097         ipw_led_link_down(priv);
10098         netif_carrier_off(priv->net_dev);
10099         netif_stop_queue(priv->net_dev);
10100         notify_wx_assoc_event(priv);
10101
10102         /* Cancel any queued work ... */
10103         cancel_delayed_work(&priv->request_scan);
10104         cancel_delayed_work(&priv->adhoc_check);
10105         cancel_delayed_work(&priv->gather_stats);
10106
10107         ipw_reset_stats(priv);
10108
10109         if (!(priv->status & STATUS_EXIT_PENDING)) {
10110                 /* Queue up another scan... */
10111                 queue_work(priv->workqueue, &priv->request_scan);
10112         }
10113 }
10114
10115 static void ipw_bg_link_down(void *data)
10116 {
10117         struct ipw_priv *priv = data;
10118         down(&priv->sem);
10119         ipw_link_down(data);
10120         up(&priv->sem);
10121 }
10122
10123 static int ipw_setup_deferred_work(struct ipw_priv *priv)
10124 {
10125         int ret = 0;
10126
10127         priv->workqueue = create_workqueue(DRV_NAME);
10128         init_waitqueue_head(&priv->wait_command_queue);
10129         init_waitqueue_head(&priv->wait_state);
10130
10131         INIT_WORK(&priv->adhoc_check, ipw_bg_adhoc_check, priv);
10132         INIT_WORK(&priv->associate, ipw_bg_associate, priv);
10133         INIT_WORK(&priv->disassociate, ipw_bg_disassociate, priv);
10134         INIT_WORK(&priv->system_config, ipw_system_config, priv);
10135         INIT_WORK(&priv->rx_replenish, ipw_bg_rx_queue_replenish, priv);
10136         INIT_WORK(&priv->adapter_restart, ipw_bg_adapter_restart, priv);
10137         INIT_WORK(&priv->rf_kill, ipw_bg_rf_kill, priv);
10138         INIT_WORK(&priv->up, (void (*)(void *))ipw_bg_up, priv);
10139         INIT_WORK(&priv->down, (void (*)(void *))ipw_bg_down, priv);
10140         INIT_WORK(&priv->request_scan,
10141                   (void (*)(void *))ipw_request_scan, priv);
10142         INIT_WORK(&priv->gather_stats,
10143                   (void (*)(void *))ipw_bg_gather_stats, priv);
10144         INIT_WORK(&priv->abort_scan, (void (*)(void *))ipw_bg_abort_scan, priv);
10145         INIT_WORK(&priv->roam, ipw_bg_roam, priv);
10146         INIT_WORK(&priv->scan_check, ipw_bg_scan_check, priv);
10147         INIT_WORK(&priv->link_up, (void (*)(void *))ipw_bg_link_up, priv);
10148         INIT_WORK(&priv->link_down, (void (*)(void *))ipw_bg_link_down, priv);
10149         INIT_WORK(&priv->led_link_on, (void (*)(void *))ipw_bg_led_link_on,
10150                   priv);
10151         INIT_WORK(&priv->led_link_off, (void (*)(void *))ipw_bg_led_link_off,
10152                   priv);
10153         INIT_WORK(&priv->led_act_off, (void (*)(void *))ipw_bg_led_activity_off,
10154                   priv);
10155         INIT_WORK(&priv->merge_networks,
10156                   (void (*)(void *))ipw_merge_adhoc_network, priv);
10157
10158 #ifdef CONFIG_IPW_QOS
10159         INIT_WORK(&priv->qos_activate, (void (*)(void *))ipw_bg_qos_activate,
10160                   priv);
10161 #endif                          /* CONFIG_IPW_QOS */
10162
10163         tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
10164                      ipw_irq_tasklet, (unsigned long)priv);
10165
10166         return ret;
10167 }
10168
10169 static void shim__set_security(struct net_device *dev,
10170                                struct ieee80211_security *sec)
10171 {
10172         struct ipw_priv *priv = ieee80211_priv(dev);
10173         int i;
10174         for (i = 0; i < 4; i++) {
10175                 if (sec->flags & (1 << i)) {
10176                         priv->ieee->sec.encode_alg[i] = sec->encode_alg[i];
10177                         priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
10178                         if (sec->key_sizes[i] == 0)
10179                                 priv->ieee->sec.flags &= ~(1 << i);
10180                         else {
10181                                 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
10182                                        sec->key_sizes[i]);
10183                                 priv->ieee->sec.flags |= (1 << i);
10184                         }
10185                         priv->status |= STATUS_SECURITY_UPDATED;
10186                 } else if (sec->level != SEC_LEVEL_1)
10187                         priv->ieee->sec.flags &= ~(1 << i);
10188         }
10189
10190         if (sec->flags & SEC_ACTIVE_KEY) {
10191                 if (sec->active_key <= 3) {
10192                         priv->ieee->sec.active_key = sec->active_key;
10193                         priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
10194                 } else
10195                         priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10196                 priv->status |= STATUS_SECURITY_UPDATED;
10197         } else
10198                 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
10199
10200         if ((sec->flags & SEC_AUTH_MODE) &&
10201             (priv->ieee->sec.auth_mode != sec->auth_mode)) {
10202                 priv->ieee->sec.auth_mode = sec->auth_mode;
10203                 priv->ieee->sec.flags |= SEC_AUTH_MODE;
10204                 if (sec->auth_mode == WLAN_AUTH_SHARED_KEY)
10205                         priv->capability |= CAP_SHARED_KEY;
10206                 else
10207                         priv->capability &= ~CAP_SHARED_KEY;
10208                 priv->status |= STATUS_SECURITY_UPDATED;
10209         }
10210
10211         if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
10212                 priv->ieee->sec.flags |= SEC_ENABLED;
10213                 priv->ieee->sec.enabled = sec->enabled;
10214                 priv->status |= STATUS_SECURITY_UPDATED;
10215                 if (sec->enabled)
10216                         priv->capability |= CAP_PRIVACY_ON;
10217                 else
10218                         priv->capability &= ~CAP_PRIVACY_ON;
10219         }
10220
10221         if (sec->flags & SEC_ENCRYPT)
10222                 priv->ieee->sec.encrypt = sec->encrypt;
10223
10224         if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
10225                 priv->ieee->sec.level = sec->level;
10226                 priv->ieee->sec.flags |= SEC_LEVEL;
10227                 priv->status |= STATUS_SECURITY_UPDATED;
10228         }
10229
10230         if (!priv->ieee->host_encrypt && (sec->flags & SEC_ENCRYPT))
10231                 ipw_set_hwcrypto_keys(priv);
10232
10233         /* To match current functionality of ipw2100 (which works well w/
10234          * various supplicants, we don't force a disassociate if the
10235          * privacy capability changes ... */
10236 #if 0
10237         if ((priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)) &&
10238             (((priv->assoc_request.capability &
10239                WLAN_CAPABILITY_PRIVACY) && !sec->enabled) ||
10240              (!(priv->assoc_request.capability &
10241                 WLAN_CAPABILITY_PRIVACY) && sec->enabled))) {
10242                 IPW_DEBUG_ASSOC("Disassociating due to capability "
10243                                 "change.\n");
10244                 ipw_disassociate(priv);
10245         }
10246 #endif
10247 }
10248
10249 static int init_supported_rates(struct ipw_priv *priv,
10250                                 struct ipw_supported_rates *rates)
10251 {
10252         /* TODO: Mask out rates based on priv->rates_mask */
10253
10254         memset(rates, 0, sizeof(*rates));
10255         /* configure supported rates */
10256         switch (priv->ieee->freq_band) {
10257         case IEEE80211_52GHZ_BAND:
10258                 rates->ieee_mode = IPW_A_MODE;
10259                 rates->purpose = IPW_RATE_CAPABILITIES;
10260                 ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
10261                                         IEEE80211_OFDM_DEFAULT_RATES_MASK);
10262                 break;
10263
10264         default:                /* Mixed or 2.4Ghz */
10265                 rates->ieee_mode = IPW_G_MODE;
10266                 rates->purpose = IPW_RATE_CAPABILITIES;
10267                 ipw_add_cck_scan_rates(rates, IEEE80211_CCK_MODULATION,
10268                                        IEEE80211_CCK_DEFAULT_RATES_MASK);
10269                 if (priv->ieee->modulation & IEEE80211_OFDM_MODULATION) {
10270                         ipw_add_ofdm_scan_rates(rates, IEEE80211_CCK_MODULATION,
10271                                                 IEEE80211_OFDM_DEFAULT_RATES_MASK);
10272                 }
10273                 break;
10274         }
10275
10276         return 0;
10277 }
10278
10279 static int ipw_config(struct ipw_priv *priv)
10280 {
10281         /* This is only called from ipw_up, which resets/reloads the firmware
10282            so, we don't need to first disable the card before we configure
10283            it */
10284         if (ipw_set_tx_power(priv))
10285                 goto error;
10286
10287         /* initialize adapter address */
10288         if (ipw_send_adapter_address(priv, priv->net_dev->dev_addr))
10289                 goto error;
10290
10291         /* set basic system config settings */
10292         init_sys_config(&priv->sys_config);
10293         if (priv->ieee->iw_mode == IW_MODE_ADHOC)
10294                 priv->sys_config.answer_broadcast_ssid_probe = 1;
10295         else
10296                 priv->sys_config.answer_broadcast_ssid_probe = 0;
10297
10298         if (ipw_send_system_config(priv, &priv->sys_config))
10299                 goto error;
10300
10301         init_supported_rates(priv, &priv->rates);
10302         if (ipw_send_supported_rates(priv, &priv->rates))
10303                 goto error;
10304
10305         /* Set request-to-send threshold */
10306         if (priv->rts_threshold) {
10307                 if (ipw_send_rts_threshold(priv, priv->rts_threshold))
10308                         goto error;
10309         }
10310 #ifdef CONFIG_IPW_QOS
10311         IPW_DEBUG_QOS("QoS: call ipw_qos_activate\n");
10312         ipw_qos_activate(priv, NULL);
10313 #endif                          /* CONFIG_IPW_QOS */
10314
10315         if (ipw_set_random_seed(priv))
10316                 goto error;
10317
10318         /* final state transition to the RUN state */
10319         if (ipw_send_host_complete(priv))
10320                 goto error;
10321
10322         priv->status |= STATUS_INIT;
10323
10324         ipw_led_init(priv);
10325         ipw_led_radio_on(priv);
10326         priv->notif_missed_beacons = 0;
10327
10328         /* Set hardware WEP key if it is configured. */
10329         if ((priv->capability & CAP_PRIVACY_ON) &&
10330             (priv->ieee->sec.level == SEC_LEVEL_1) &&
10331             !(priv->ieee->host_encrypt || priv->ieee->host_decrypt))
10332                 ipw_set_hwcrypto_keys(priv);
10333
10334         return 0;
10335
10336       error:
10337         return -EIO;
10338 }
10339
10340 /*
10341  * NOTE:
10342  *
10343  * These tables have been tested in conjunction with the
10344  * Intel PRO/Wireless 2200BG and 2915ABG Network Connection Adapters.
10345  *
10346  * Altering this values, using it on other hardware, or in geographies
10347  * not intended for resale of the above mentioned Intel adapters has
10348  * not been tested.
10349  *
10350  */
10351 static const struct ieee80211_geo ipw_geos[] = {
10352         {                       /* Restricted */
10353          "---",
10354          .bg_channels = 11,
10355          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10356                 {2427, 4}, {2432, 5}, {2437, 6},
10357                 {2442, 7}, {2447, 8}, {2452, 9},
10358                 {2457, 10}, {2462, 11}},
10359          },
10360
10361         {                       /* Custom US/Canada */
10362          "ZZF",
10363          .bg_channels = 11,
10364          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10365                 {2427, 4}, {2432, 5}, {2437, 6},
10366                 {2442, 7}, {2447, 8}, {2452, 9},
10367                 {2457, 10}, {2462, 11}},
10368          .a_channels = 8,
10369          .a = {{5180, 36},
10370                {5200, 40},
10371                {5220, 44},
10372                {5240, 48},
10373                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10374                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10375                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10376                {5320, 64, IEEE80211_CH_PASSIVE_ONLY}},
10377          },
10378
10379         {                       /* Rest of World */
10380          "ZZD",
10381          .bg_channels = 13,
10382          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10383                 {2427, 4}, {2432, 5}, {2437, 6},
10384                 {2442, 7}, {2447, 8}, {2452, 9},
10385                 {2457, 10}, {2462, 11}, {2467, 12},
10386                 {2472, 13}},
10387          },
10388
10389         {                       /* Custom USA & Europe & High */
10390          "ZZA",
10391          .bg_channels = 11,
10392          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10393                 {2427, 4}, {2432, 5}, {2437, 6},
10394                 {2442, 7}, {2447, 8}, {2452, 9},
10395                 {2457, 10}, {2462, 11}},
10396          .a_channels = 13,
10397          .a = {{5180, 36},
10398                {5200, 40},
10399                {5220, 44},
10400                {5240, 48},
10401                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10402                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10403                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10404                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10405                {5745, 149},
10406                {5765, 153},
10407                {5785, 157},
10408                {5805, 161},
10409                {5825, 165}},
10410          },
10411
10412         {                       /* Custom NA & Europe */
10413          "ZZB",
10414          .bg_channels = 11,
10415          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10416                 {2427, 4}, {2432, 5}, {2437, 6},
10417                 {2442, 7}, {2447, 8}, {2452, 9},
10418                 {2457, 10}, {2462, 11}},
10419          .a_channels = 13,
10420          .a = {{5180, 36},
10421                {5200, 40},
10422                {5220, 44},
10423                {5240, 48},
10424                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10425                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10426                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10427                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10428                {5745, 149, IEEE80211_CH_PASSIVE_ONLY},
10429                {5765, 153, IEEE80211_CH_PASSIVE_ONLY},
10430                {5785, 157, IEEE80211_CH_PASSIVE_ONLY},
10431                {5805, 161, IEEE80211_CH_PASSIVE_ONLY},
10432                {5825, 165, IEEE80211_CH_PASSIVE_ONLY}},
10433          },
10434
10435         {                       /* Custom Japan */
10436          "ZZC",
10437          .bg_channels = 11,
10438          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10439                 {2427, 4}, {2432, 5}, {2437, 6},
10440                 {2442, 7}, {2447, 8}, {2452, 9},
10441                 {2457, 10}, {2462, 11}},
10442          .a_channels = 4,
10443          .a = {{5170, 34}, {5190, 38},
10444                {5210, 42}, {5230, 46}},
10445          },
10446
10447         {                       /* Custom */
10448          "ZZM",
10449          .bg_channels = 11,
10450          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10451                 {2427, 4}, {2432, 5}, {2437, 6},
10452                 {2442, 7}, {2447, 8}, {2452, 9},
10453                 {2457, 10}, {2462, 11}},
10454          },
10455
10456         {                       /* Europe */
10457          "ZZE",
10458          .bg_channels = 13,
10459          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10460                 {2427, 4}, {2432, 5}, {2437, 6},
10461                 {2442, 7}, {2447, 8}, {2452, 9},
10462                 {2457, 10}, {2462, 11}, {2467, 12},
10463                 {2472, 13}},
10464          .a_channels = 19,
10465          .a = {{5180, 36},
10466                {5200, 40},
10467                {5220, 44},
10468                {5240, 48},
10469                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10470                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10471                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10472                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10473                {5500, 100, IEEE80211_CH_PASSIVE_ONLY},
10474                {5520, 104, IEEE80211_CH_PASSIVE_ONLY},
10475                {5540, 108, IEEE80211_CH_PASSIVE_ONLY},
10476                {5560, 112, IEEE80211_CH_PASSIVE_ONLY},
10477                {5580, 116, IEEE80211_CH_PASSIVE_ONLY},
10478                {5600, 120, IEEE80211_CH_PASSIVE_ONLY},
10479                {5620, 124, IEEE80211_CH_PASSIVE_ONLY},
10480                {5640, 128, IEEE80211_CH_PASSIVE_ONLY},
10481                {5660, 132, IEEE80211_CH_PASSIVE_ONLY},
10482                {5680, 136, IEEE80211_CH_PASSIVE_ONLY},
10483                {5700, 140, IEEE80211_CH_PASSIVE_ONLY}},
10484          },
10485
10486         {                       /* Custom Japan */
10487          "ZZJ",
10488          .bg_channels = 14,
10489          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10490                 {2427, 4}, {2432, 5}, {2437, 6},
10491                 {2442, 7}, {2447, 8}, {2452, 9},
10492                 {2457, 10}, {2462, 11}, {2467, 12},
10493                 {2472, 13}, {2484, 14, IEEE80211_CH_B_ONLY}},
10494          .a_channels = 4,
10495          .a = {{5170, 34}, {5190, 38},
10496                {5210, 42}, {5230, 46}},
10497          },
10498
10499         {                       /* Rest of World */
10500          "ZZR",
10501          .bg_channels = 14,
10502          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10503                 {2427, 4}, {2432, 5}, {2437, 6},
10504                 {2442, 7}, {2447, 8}, {2452, 9},
10505                 {2457, 10}, {2462, 11}, {2467, 12},
10506                 {2472, 13}, {2484, 14, IEEE80211_CH_B_ONLY |
10507                              IEEE80211_CH_PASSIVE_ONLY}},
10508          },
10509
10510         {                       /* High Band */
10511          "ZZH",
10512          .bg_channels = 13,
10513          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10514                 {2427, 4}, {2432, 5}, {2437, 6},
10515                 {2442, 7}, {2447, 8}, {2452, 9},
10516                 {2457, 10}, {2462, 11},
10517                 {2467, 12, IEEE80211_CH_PASSIVE_ONLY},
10518                 {2472, 13, IEEE80211_CH_PASSIVE_ONLY}},
10519          .a_channels = 4,
10520          .a = {{5745, 149}, {5765, 153},
10521                {5785, 157}, {5805, 161}},
10522          },
10523
10524         {                       /* Custom Europe */
10525          "ZZG",
10526          .bg_channels = 13,
10527          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10528                 {2427, 4}, {2432, 5}, {2437, 6},
10529                 {2442, 7}, {2447, 8}, {2452, 9},
10530                 {2457, 10}, {2462, 11},
10531                 {2467, 12}, {2472, 13}},
10532          .a_channels = 4,
10533          .a = {{5180, 36}, {5200, 40},
10534                {5220, 44}, {5240, 48}},
10535          },
10536
10537         {                       /* Europe */
10538          "ZZK",
10539          .bg_channels = 13,
10540          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10541                 {2427, 4}, {2432, 5}, {2437, 6},
10542                 {2442, 7}, {2447, 8}, {2452, 9},
10543                 {2457, 10}, {2462, 11},
10544                 {2467, 12, IEEE80211_CH_PASSIVE_ONLY},
10545                 {2472, 13, IEEE80211_CH_PASSIVE_ONLY}},
10546          .a_channels = 24,
10547          .a = {{5180, 36, IEEE80211_CH_PASSIVE_ONLY},
10548                {5200, 40, IEEE80211_CH_PASSIVE_ONLY},
10549                {5220, 44, IEEE80211_CH_PASSIVE_ONLY},
10550                {5240, 48, IEEE80211_CH_PASSIVE_ONLY},
10551                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10552                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10553                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10554                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10555                {5500, 100, IEEE80211_CH_PASSIVE_ONLY},
10556                {5520, 104, IEEE80211_CH_PASSIVE_ONLY},
10557                {5540, 108, IEEE80211_CH_PASSIVE_ONLY},
10558                {5560, 112, IEEE80211_CH_PASSIVE_ONLY},
10559                {5580, 116, IEEE80211_CH_PASSIVE_ONLY},
10560                {5600, 120, IEEE80211_CH_PASSIVE_ONLY},
10561                {5620, 124, IEEE80211_CH_PASSIVE_ONLY},
10562                {5640, 128, IEEE80211_CH_PASSIVE_ONLY},
10563                {5660, 132, IEEE80211_CH_PASSIVE_ONLY},
10564                {5680, 136, IEEE80211_CH_PASSIVE_ONLY},
10565                {5700, 140, IEEE80211_CH_PASSIVE_ONLY},
10566                {5745, 149, IEEE80211_CH_PASSIVE_ONLY},
10567                {5765, 153, IEEE80211_CH_PASSIVE_ONLY},
10568                {5785, 157, IEEE80211_CH_PASSIVE_ONLY},
10569                {5805, 161, IEEE80211_CH_PASSIVE_ONLY},
10570                {5825, 165, IEEE80211_CH_PASSIVE_ONLY}},
10571          },
10572
10573         {                       /* Europe */
10574          "ZZL",
10575          .bg_channels = 11,
10576          .bg = {{2412, 1}, {2417, 2}, {2422, 3},
10577                 {2427, 4}, {2432, 5}, {2437, 6},
10578                 {2442, 7}, {2447, 8}, {2452, 9},
10579                 {2457, 10}, {2462, 11}},
10580          .a_channels = 13,
10581          .a = {{5180, 36, IEEE80211_CH_PASSIVE_ONLY},
10582                {5200, 40, IEEE80211_CH_PASSIVE_ONLY},
10583                {5220, 44, IEEE80211_CH_PASSIVE_ONLY},
10584                {5240, 48, IEEE80211_CH_PASSIVE_ONLY},
10585                {5260, 52, IEEE80211_CH_PASSIVE_ONLY},
10586                {5280, 56, IEEE80211_CH_PASSIVE_ONLY},
10587                {5300, 60, IEEE80211_CH_PASSIVE_ONLY},
10588                {5320, 64, IEEE80211_CH_PASSIVE_ONLY},
10589                {5745, 149, IEEE80211_CH_PASSIVE_ONLY},
10590                {5765, 153, IEEE80211_CH_PASSIVE_ONLY},
10591                {5785, 157, IEEE80211_CH_PASSIVE_ONLY},
10592                {5805, 161, IEEE80211_CH_PASSIVE_ONLY},
10593                {5825, 165, IEEE80211_CH_PASSIVE_ONLY}},
10594          }
10595 };
10596
10597 /* GEO code borrowed from ieee80211_geo.c */
10598 static int ipw_is_valid_channel(struct ieee80211_device *ieee, u8 channel)
10599 {
10600         int i;
10601
10602         /* Driver needs to initialize the geography map before using
10603          * these helper functions */
10604         BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
10605
10606         if (ieee->freq_band & IEEE80211_24GHZ_BAND)
10607                 for (i = 0; i < ieee->geo.bg_channels; i++)
10608                         /* NOTE: If G mode is currently supported but
10609                          * this is a B only channel, we don't see it
10610                          * as valid. */
10611                         if ((ieee->geo.bg[i].channel == channel) &&
10612                             (!(ieee->mode & IEEE_G) ||
10613                              !(ieee->geo.bg[i].flags & IEEE80211_CH_B_ONLY)))
10614                                 return IEEE80211_24GHZ_BAND;
10615
10616         if (ieee->freq_band & IEEE80211_52GHZ_BAND)
10617                 for (i = 0; i < ieee->geo.a_channels; i++)
10618                         if (ieee->geo.a[i].channel == channel)
10619                                 return IEEE80211_52GHZ_BAND;
10620
10621         return 0;
10622 }
10623
10624 static int ipw_channel_to_index(struct ieee80211_device *ieee, u8 channel)
10625 {
10626         int i;
10627
10628         /* Driver needs to initialize the geography map before using
10629          * these helper functions */
10630         BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
10631
10632         if (ieee->freq_band & IEEE80211_24GHZ_BAND)
10633                 for (i = 0; i < ieee->geo.bg_channels; i++)
10634                         if (ieee->geo.bg[i].channel == channel)
10635                                 return i;
10636
10637         if (ieee->freq_band & IEEE80211_52GHZ_BAND)
10638                 for (i = 0; i < ieee->geo.a_channels; i++)
10639                         if (ieee->geo.a[i].channel == channel)
10640                                 return i;
10641
10642         return -1;
10643 }
10644
10645 static u8 ipw_freq_to_channel(struct ieee80211_device *ieee, u32 freq)
10646 {
10647         int i;
10648
10649         /* Driver needs to initialize the geography map before using
10650          * these helper functions */
10651         BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
10652
10653         freq /= 100000;
10654
10655         if (ieee->freq_band & IEEE80211_24GHZ_BAND)
10656                 for (i = 0; i < ieee->geo.bg_channels; i++)
10657                         if (ieee->geo.bg[i].freq == freq)
10658                                 return ieee->geo.bg[i].channel;
10659
10660         if (ieee->freq_band & IEEE80211_52GHZ_BAND)
10661                 for (i = 0; i < ieee->geo.a_channels; i++)
10662                         if (ieee->geo.a[i].freq == freq)
10663                                 return ieee->geo.a[i].channel;
10664
10665         return 0;
10666 }
10667
10668 static int ipw_set_geo(struct ieee80211_device *ieee,
10669                        const struct ieee80211_geo *geo)
10670 {
10671         memcpy(ieee->geo.name, geo->name, 3);
10672         ieee->geo.name[3] = '\0';
10673         ieee->geo.bg_channels = geo->bg_channels;
10674         ieee->geo.a_channels = geo->a_channels;
10675         memcpy(ieee->geo.bg, geo->bg, geo->bg_channels *
10676                sizeof(struct ieee80211_channel));
10677         memcpy(ieee->geo.a, geo->a, ieee->geo.a_channels *
10678                sizeof(struct ieee80211_channel));
10679         return 0;
10680 }
10681
10682 static const struct ieee80211_geo *ipw_get_geo(struct ieee80211_device *ieee)
10683 {
10684         return &ieee->geo;
10685 }
10686
10687 #define MAX_HW_RESTARTS 5
10688 static int ipw_up(struct ipw_priv *priv)
10689 {
10690         int rc, i, j;
10691
10692         if (priv->status & STATUS_EXIT_PENDING)
10693                 return -EIO;
10694
10695         if (cmdlog && !priv->cmdlog) {
10696                 priv->cmdlog = kmalloc(sizeof(*priv->cmdlog) * cmdlog,
10697                                        GFP_KERNEL);
10698                 if (priv->cmdlog == NULL) {
10699                         IPW_ERROR("Error allocating %d command log entries.\n",
10700                                   cmdlog);
10701                 } else {
10702                         memset(priv->cmdlog, 0, sizeof(*priv->cmdlog) * cmdlog);
10703                         priv->cmdlog_len = cmdlog;
10704                 }
10705         }
10706
10707         for (i = 0; i < MAX_HW_RESTARTS; i++) {
10708                 /* Load the microcode, firmware, and eeprom.
10709                  * Also start the clocks. */
10710                 rc = ipw_load(priv);
10711                 if (rc) {
10712                         IPW_ERROR("Unable to load firmware: %d\n", rc);
10713                         return rc;
10714                 }
10715
10716                 ipw_init_ordinals(priv);
10717                 if (!(priv->config & CFG_CUSTOM_MAC))
10718                         eeprom_parse_mac(priv, priv->mac_addr);
10719                 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
10720
10721                 for (j = 0; j < ARRAY_SIZE(ipw_geos); j++) {
10722                         if (!memcmp(&priv->eeprom[EEPROM_COUNTRY_CODE],
10723                                     ipw_geos[j].name, 3))
10724                                 break;
10725                 }
10726                 if (j == ARRAY_SIZE(ipw_geos)) {
10727                         IPW_WARNING("SKU [%c%c%c] not recognized.\n",
10728                                     priv->eeprom[EEPROM_COUNTRY_CODE + 0],
10729                                     priv->eeprom[EEPROM_COUNTRY_CODE + 1],
10730                                     priv->eeprom[EEPROM_COUNTRY_CODE + 2]);
10731                         j = 0;
10732                 }
10733                 if (ipw_set_geo(priv->ieee, &ipw_geos[j])) {
10734                         IPW_WARNING("Could not set geography.");
10735                         return 0;
10736                 }
10737
10738                 IPW_DEBUG_INFO("Geography %03d [%s] detected.\n",
10739                                j, priv->ieee->geo.name);
10740
10741                 if (priv->status & STATUS_RF_KILL_SW) {
10742                         IPW_WARNING("Radio disabled by module parameter.\n");
10743                         return 0;
10744                 } else if (rf_kill_active(priv)) {
10745                         IPW_WARNING("Radio Frequency Kill Switch is On:\n"
10746                                     "Kill switch must be turned off for "
10747                                     "wireless networking to work.\n");
10748                         queue_delayed_work(priv->workqueue, &priv->rf_kill,
10749                                            2 * HZ);
10750                         return 0;
10751                 }
10752
10753                 rc = ipw_config(priv);
10754                 if (!rc) {
10755                         IPW_DEBUG_INFO("Configured device on count %i\n", i);
10756
10757                         /* If configure to try and auto-associate, kick
10758                          * off a scan. */
10759                         queue_work(priv->workqueue, &priv->request_scan);
10760
10761                         return 0;
10762                 }
10763
10764                 IPW_DEBUG_INFO("Device configuration failed: 0x%08X\n", rc);
10765                 IPW_DEBUG_INFO("Failed to config device on retry %d of %d\n",
10766                                i, MAX_HW_RESTARTS);
10767
10768                 /* We had an error bringing up the hardware, so take it
10769                  * all the way back down so we can try again */
10770                 ipw_down(priv);
10771         }
10772
10773         /* tried to restart and config the device for as long as our
10774          * patience could withstand */
10775         IPW_ERROR("Unable to initialize device after %d attempts.\n", i);
10776
10777         return -EIO;
10778 }
10779
10780 static void ipw_bg_up(void *data)
10781 {
10782         struct ipw_priv *priv = data;
10783         down(&priv->sem);
10784         ipw_up(data);
10785         up(&priv->sem);
10786 }
10787
10788 static void ipw_deinit(struct ipw_priv *priv)
10789 {
10790         int i;
10791
10792         if (priv->status & STATUS_SCANNING) {
10793                 IPW_DEBUG_INFO("Aborting scan during shutdown.\n");
10794                 ipw_abort_scan(priv);
10795         }
10796
10797         if (priv->status & STATUS_ASSOCIATED) {
10798                 IPW_DEBUG_INFO("Disassociating during shutdown.\n");
10799                 ipw_disassociate(priv);
10800         }
10801
10802         ipw_led_shutdown(priv);
10803
10804         /* Wait up to 1s for status to change to not scanning and not
10805          * associated (disassociation can take a while for a ful 802.11
10806          * exchange */
10807         for (i = 1000; i && (priv->status &
10808                              (STATUS_DISASSOCIATING |
10809                               STATUS_ASSOCIATED | STATUS_SCANNING)); i--)
10810                 udelay(10);
10811
10812         if (priv->status & (STATUS_DISASSOCIATING |
10813                             STATUS_ASSOCIATED | STATUS_SCANNING))
10814                 IPW_DEBUG_INFO("Still associated or scanning...\n");
10815         else
10816                 IPW_DEBUG_INFO("Took %dms to de-init\n", 1000 - i);
10817
10818         /* Attempt to disable the card */
10819         ipw_send_card_disable(priv, 0);
10820
10821         priv->status &= ~STATUS_INIT;
10822 }
10823
10824 static void ipw_down(struct ipw_priv *priv)
10825 {
10826         int exit_pending = priv->status & STATUS_EXIT_PENDING;
10827
10828         priv->status |= STATUS_EXIT_PENDING;
10829
10830         if (ipw_is_init(priv))
10831                 ipw_deinit(priv);
10832
10833         /* Wipe out the EXIT_PENDING status bit if we are not actually
10834          * exiting the module */
10835         if (!exit_pending)
10836                 priv->status &= ~STATUS_EXIT_PENDING;
10837
10838         /* tell the device to stop sending interrupts */
10839         ipw_disable_interrupts(priv);
10840
10841         /* Clear all bits but the RF Kill */
10842         priv->status &= STATUS_RF_KILL_MASK | STATUS_EXIT_PENDING;
10843         netif_carrier_off(priv->net_dev);
10844         netif_stop_queue(priv->net_dev);
10845
10846         ipw_stop_nic(priv);
10847
10848         ipw_led_radio_off(priv);
10849 }
10850
10851 static void ipw_bg_down(void *data)
10852 {
10853         struct ipw_priv *priv = data;
10854         down(&priv->sem);
10855         ipw_down(data);
10856         up(&priv->sem);
10857 }
10858
10859 /* Called by register_netdev() */
10860 static int ipw_net_init(struct net_device *dev)
10861 {
10862         struct ipw_priv *priv = ieee80211_priv(dev);
10863         down(&priv->sem);
10864
10865         if (ipw_up(priv)) {
10866                 up(&priv->sem);
10867                 return -EIO;
10868         }
10869
10870         up(&priv->sem);
10871         return 0;
10872 }
10873
10874 /* PCI driver stuff */
10875 static struct pci_device_id card_ids[] = {
10876         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2701, 0, 0, 0},
10877         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2702, 0, 0, 0},
10878         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2711, 0, 0, 0},
10879         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2712, 0, 0, 0},
10880         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2721, 0, 0, 0},
10881         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2722, 0, 0, 0},
10882         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2731, 0, 0, 0},
10883         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2732, 0, 0, 0},
10884         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2741, 0, 0, 0},
10885         {PCI_VENDOR_ID_INTEL, 0x1043, 0x103c, 0x2741, 0, 0, 0},
10886         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2742, 0, 0, 0},
10887         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2751, 0, 0, 0},
10888         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2752, 0, 0, 0},
10889         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2753, 0, 0, 0},
10890         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2754, 0, 0, 0},
10891         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2761, 0, 0, 0},
10892         {PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, 0x2762, 0, 0, 0},
10893         {PCI_VENDOR_ID_INTEL, 0x104f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
10894         {PCI_VENDOR_ID_INTEL, 0x4220, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */
10895         {PCI_VENDOR_ID_INTEL, 0x4221, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* BG */
10896         {PCI_VENDOR_ID_INTEL, 0x4223, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
10897         {PCI_VENDOR_ID_INTEL, 0x4224, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* ABG */
10898
10899         /* required last entry */
10900         {0,}
10901 };
10902
10903 MODULE_DEVICE_TABLE(pci, card_ids);
10904
10905 static struct attribute *ipw_sysfs_entries[] = {
10906         &dev_attr_rf_kill.attr,
10907         &dev_attr_direct_dword.attr,
10908         &dev_attr_indirect_byte.attr,
10909         &dev_attr_indirect_dword.attr,
10910         &dev_attr_mem_gpio_reg.attr,
10911         &dev_attr_command_event_reg.attr,
10912         &dev_attr_nic_type.attr,
10913         &dev_attr_status.attr,
10914         &dev_attr_cfg.attr,
10915         &dev_attr_error.attr,
10916         &dev_attr_event_log.attr,
10917         &dev_attr_cmd_log.attr,
10918         &dev_attr_eeprom_delay.attr,
10919         &dev_attr_ucode_version.attr,
10920         &dev_attr_rtc.attr,
10921         &dev_attr_scan_age.attr,
10922         &dev_attr_led.attr,
10923         &dev_attr_speed_scan.attr,
10924         &dev_attr_net_stats.attr,
10925         NULL
10926 };
10927
10928 static struct attribute_group ipw_attribute_group = {
10929         .name = NULL,           /* put in device directory */
10930         .attrs = ipw_sysfs_entries,
10931 };
10932
10933 static int ipw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
10934 {
10935         int err = 0;
10936         struct net_device *net_dev;
10937         void __iomem *base;
10938         u32 length, val;
10939         struct ipw_priv *priv;
10940         int i;
10941
10942         net_dev = alloc_ieee80211(sizeof(struct ipw_priv));
10943         if (net_dev == NULL) {
10944                 err = -ENOMEM;
10945                 goto out;
10946         }
10947
10948         priv = ieee80211_priv(net_dev);
10949         priv->ieee = netdev_priv(net_dev);
10950
10951         priv->net_dev = net_dev;
10952         priv->pci_dev = pdev;
10953 #ifdef CONFIG_IPW2200_DEBUG
10954         ipw_debug_level = debug;
10955 #endif
10956         spin_lock_init(&priv->lock);
10957         for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++)
10958                 INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
10959
10960         init_MUTEX(&priv->sem);
10961         if (pci_enable_device(pdev)) {
10962                 err = -ENODEV;
10963                 goto out_free_ieee80211;
10964         }
10965
10966         pci_set_master(pdev);
10967
10968         err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
10969         if (!err)
10970                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
10971         if (err) {
10972                 printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
10973                 goto out_pci_disable_device;
10974         }
10975
10976         pci_set_drvdata(pdev, priv);
10977
10978         err = pci_request_regions(pdev, DRV_NAME);
10979         if (err)
10980                 goto out_pci_disable_device;
10981
10982         /* We disable the RETRY_TIMEOUT register (0x41) to keep
10983          * PCI Tx retries from interfering with C3 CPU state */
10984         pci_read_config_dword(pdev, 0x40, &val);
10985         if ((val & 0x0000ff00) != 0)
10986                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
10987
10988         length = pci_resource_len(pdev, 0);
10989         priv->hw_len = length;
10990
10991         base = ioremap_nocache(pci_resource_start(pdev, 0), length);
10992         if (!base) {
10993                 err = -ENODEV;
10994                 goto out_pci_release_regions;
10995         }
10996
10997         priv->hw_base = base;
10998         IPW_DEBUG_INFO("pci_resource_len = 0x%08x\n", length);
10999         IPW_DEBUG_INFO("pci_resource_base = %p\n", base);
11000
11001         err = ipw_setup_deferred_work(priv);
11002         if (err) {
11003                 IPW_ERROR("Unable to setup deferred work\n");
11004                 goto out_iounmap;
11005         }
11006
11007         ipw_sw_reset(priv, 1);
11008
11009         err = request_irq(pdev->irq, ipw_isr, SA_SHIRQ, DRV_NAME, priv);
11010         if (err) {
11011                 IPW_ERROR("Error allocating IRQ %d\n", pdev->irq);
11012                 goto out_destroy_workqueue;
11013         }
11014
11015         SET_MODULE_OWNER(net_dev);
11016         SET_NETDEV_DEV(net_dev, &pdev->dev);
11017
11018         down(&priv->sem);
11019
11020         priv->ieee->hard_start_xmit = ipw_net_hard_start_xmit;
11021         priv->ieee->set_security = shim__set_security;
11022         priv->ieee->is_queue_full = ipw_net_is_queue_full;
11023
11024 #ifdef CONFIG_IPW_QOS
11025         priv->ieee->handle_probe_response = ipw_handle_beacon;
11026         priv->ieee->handle_beacon = ipw_handle_probe_response;
11027         priv->ieee->handle_assoc_response = ipw_handle_assoc_response;
11028 #endif                          /* CONFIG_IPW_QOS */
11029
11030         priv->ieee->perfect_rssi = -20;
11031         priv->ieee->worst_rssi = -85;
11032
11033         net_dev->open = ipw_net_open;
11034         net_dev->stop = ipw_net_stop;
11035         net_dev->init = ipw_net_init;
11036         net_dev->get_stats = ipw_net_get_stats;
11037         net_dev->set_multicast_list = ipw_net_set_multicast_list;
11038         net_dev->set_mac_address = ipw_net_set_mac_address;
11039         priv->wireless_data.spy_data = &priv->ieee->spy_data;
11040         priv->wireless_data.ieee80211 = priv->ieee;
11041         net_dev->wireless_data = &priv->wireless_data;
11042         net_dev->wireless_handlers = &ipw_wx_handler_def;
11043         net_dev->ethtool_ops = &ipw_ethtool_ops;
11044         net_dev->irq = pdev->irq;
11045         net_dev->base_addr = (unsigned long)priv->hw_base;
11046         net_dev->mem_start = pci_resource_start(pdev, 0);
11047         net_dev->mem_end = net_dev->mem_start + pci_resource_len(pdev, 0) - 1;
11048
11049         err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group);
11050         if (err) {
11051                 IPW_ERROR("failed to create sysfs device attributes\n");
11052                 up(&priv->sem);
11053                 goto out_release_irq;
11054         }
11055
11056         up(&priv->sem);
11057         err = register_netdev(net_dev);
11058         if (err) {
11059                 IPW_ERROR("failed to register network device\n");
11060                 goto out_remove_sysfs;
11061         }
11062         return 0;
11063
11064       out_remove_sysfs:
11065         sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11066       out_release_irq:
11067         free_irq(pdev->irq, priv);
11068       out_destroy_workqueue:
11069         destroy_workqueue(priv->workqueue);
11070         priv->workqueue = NULL;
11071       out_iounmap:
11072         iounmap(priv->hw_base);
11073       out_pci_release_regions:
11074         pci_release_regions(pdev);
11075       out_pci_disable_device:
11076         pci_disable_device(pdev);
11077         pci_set_drvdata(pdev, NULL);
11078       out_free_ieee80211:
11079         free_ieee80211(priv->net_dev);
11080       out:
11081         return err;
11082 }
11083
11084 static void ipw_pci_remove(struct pci_dev *pdev)
11085 {
11086         struct ipw_priv *priv = pci_get_drvdata(pdev);
11087         struct list_head *p, *q;
11088         int i;
11089
11090         if (!priv)
11091                 return;
11092
11093         down(&priv->sem);
11094
11095         priv->status |= STATUS_EXIT_PENDING;
11096         ipw_down(priv);
11097         sysfs_remove_group(&pdev->dev.kobj, &ipw_attribute_group);
11098
11099         up(&priv->sem);
11100
11101         unregister_netdev(priv->net_dev);
11102
11103         if (priv->rxq) {
11104                 ipw_rx_queue_free(priv, priv->rxq);
11105                 priv->rxq = NULL;
11106         }
11107         ipw_tx_queue_free(priv);
11108
11109         if (priv->cmdlog) {
11110                 kfree(priv->cmdlog);
11111                 priv->cmdlog = NULL;
11112         }
11113         /* ipw_down will ensure that there is no more pending work
11114          * in the workqueue's, so we can safely remove them now. */
11115         cancel_delayed_work(&priv->adhoc_check);
11116         cancel_delayed_work(&priv->gather_stats);
11117         cancel_delayed_work(&priv->request_scan);
11118         cancel_delayed_work(&priv->rf_kill);
11119         cancel_delayed_work(&priv->scan_check);
11120         destroy_workqueue(priv->workqueue);
11121         priv->workqueue = NULL;
11122
11123         /* Free MAC hash list for ADHOC */
11124         for (i = 0; i < IPW_IBSS_MAC_HASH_SIZE; i++) {
11125                 list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
11126                         kfree(list_entry(p, struct ipw_ibss_seq, list));
11127                         list_del(p);
11128                 }
11129         }
11130
11131         if (priv->error) {
11132                 ipw_free_error_log(priv->error);
11133                 priv->error = NULL;
11134         }
11135
11136         free_irq(pdev->irq, priv);
11137         iounmap(priv->hw_base);
11138         pci_release_regions(pdev);
11139         pci_disable_device(pdev);
11140         pci_set_drvdata(pdev, NULL);
11141         free_ieee80211(priv->net_dev);
11142         free_firmware();
11143 }
11144
11145 #ifdef CONFIG_PM
11146 static int ipw_pci_suspend(struct pci_dev *pdev, pm_message_t state)
11147 {
11148         struct ipw_priv *priv = pci_get_drvdata(pdev);
11149         struct net_device *dev = priv->net_dev;
11150
11151         printk(KERN_INFO "%s: Going into suspend...\n", dev->name);
11152
11153         /* Take down the device; powers it off, etc. */
11154         ipw_down(priv);
11155
11156         /* Remove the PRESENT state of the device */
11157         netif_device_detach(dev);
11158
11159         pci_save_state(pdev);
11160         pci_disable_device(pdev);
11161         pci_set_power_state(pdev, pci_choose_state(pdev, state));
11162
11163         return 0;
11164 }
11165
11166 static int ipw_pci_resume(struct pci_dev *pdev)
11167 {
11168         struct ipw_priv *priv = pci_get_drvdata(pdev);
11169         struct net_device *dev = priv->net_dev;
11170         u32 val;
11171
11172         printk(KERN_INFO "%s: Coming out of suspend...\n", dev->name);
11173
11174         pci_set_power_state(pdev, PCI_D0);
11175         pci_enable_device(pdev);
11176         pci_restore_state(pdev);
11177
11178         /*
11179          * Suspend/Resume resets the PCI configuration space, so we have to
11180          * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
11181          * from interfering with C3 CPU state. pci_restore_state won't help
11182          * here since it only restores the first 64 bytes pci config header.
11183          */
11184         pci_read_config_dword(pdev, 0x40, &val);
11185         if ((val & 0x0000ff00) != 0)
11186                 pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
11187
11188         /* Set the device back into the PRESENT state; this will also wake
11189          * the queue of needed */
11190         netif_device_attach(dev);
11191
11192         /* Bring the device back up */
11193         queue_work(priv->workqueue, &priv->up);
11194
11195         return 0;
11196 }
11197 #endif
11198
11199 /* driver initialization stuff */
11200 static struct pci_driver ipw_driver = {
11201         .name = DRV_NAME,
11202         .id_table = card_ids,
11203         .probe = ipw_pci_probe,
11204         .remove = __devexit_p(ipw_pci_remove),
11205 #ifdef CONFIG_PM
11206         .suspend = ipw_pci_suspend,
11207         .resume = ipw_pci_resume,
11208 #endif
11209 };
11210
11211 static int __init ipw_init(void)
11212 {
11213         int ret;
11214
11215         printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
11216         printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
11217
11218         ret = pci_module_init(&ipw_driver);
11219         if (ret) {
11220                 IPW_ERROR("Unable to initialize PCI module\n");
11221                 return ret;
11222         }
11223
11224         ret = driver_create_file(&ipw_driver.driver, &driver_attr_debug_level);
11225         if (ret) {
11226                 IPW_ERROR("Unable to create driver sysfs file\n");
11227                 pci_unregister_driver(&ipw_driver);
11228                 return ret;
11229         }
11230
11231         return ret;
11232 }
11233
11234 static void __exit ipw_exit(void)
11235 {
11236         driver_remove_file(&ipw_driver.driver, &driver_attr_debug_level);
11237         pci_unregister_driver(&ipw_driver);
11238 }
11239
11240 module_param(disable, int, 0444);
11241 MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
11242
11243 module_param(associate, int, 0444);
11244 MODULE_PARM_DESC(associate, "auto associate when scanning (default on)");
11245
11246 module_param(auto_create, int, 0444);
11247 MODULE_PARM_DESC(auto_create, "auto create adhoc network (default on)");
11248
11249 module_param(led, int, 0444);
11250 MODULE_PARM_DESC(led, "enable led control on some systems (default 0 off)\n");
11251
11252 module_param(debug, int, 0444);
11253 MODULE_PARM_DESC(debug, "debug output mask");
11254
11255 module_param(channel, int, 0444);
11256 MODULE_PARM_DESC(channel, "channel to limit associate to (default 0 [ANY])");
11257
11258 #ifdef CONFIG_IPW_QOS
11259 module_param(qos_enable, int, 0444);
11260 MODULE_PARM_DESC(qos_enable, "enable all QoS functionalitis");
11261
11262 module_param(qos_burst_enable, int, 0444);
11263 MODULE_PARM_DESC(qos_burst_enable, "enable QoS burst mode");
11264
11265 module_param(qos_no_ack_mask, int, 0444);
11266 MODULE_PARM_DESC(qos_no_ack_mask, "mask Tx_Queue to no ack");
11267
11268 module_param(burst_duration_CCK, int, 0444);
11269 MODULE_PARM_DESC(burst_duration_CCK, "set CCK burst value");
11270
11271 module_param(burst_duration_OFDM, int, 0444);
11272 MODULE_PARM_DESC(burst_duration_OFDM, "set OFDM burst value");
11273 #endif                          /* CONFIG_IPW_QOS */
11274
11275 #ifdef CONFIG_IPW2200_MONITOR
11276 module_param(mode, int, 0444);
11277 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
11278 #else
11279 module_param(mode, int, 0444);
11280 MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS)");
11281 #endif
11282
11283 module_param(hwcrypto, int, 0444);
11284 MODULE_PARM_DESC(hwcrypto, "enable hardware crypto (default on)");
11285
11286 module_param(cmdlog, int, 0444);
11287 MODULE_PARM_DESC(cmdlog,
11288                  "allocate a ring buffer for logging firmware commands");
11289
11290 module_exit(ipw_exit);
11291 module_init(ipw_init);