git.oblomov.eu Git - linux-2.6/blob - drivers/net/wireless/bcm43xx/bcm43xx_main.c

   1 /*
   2
   3   Broadcom BCM43xx wireless driver
   4
   5   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
   6                      Stefano Brivio <st3@riseup.net>
   7                      Michael Buesch <mbuesch@freenet.de>
   8                      Danny van Dyk <kugelfang@gentoo.org>
   9                      Andreas Jaggi <andreas.jaggi@waterwave.ch>
  10
  11   Some parts of the code in this file are derived from the ipw2200
  12   driver  Copyright(c) 2003 - 2004 Intel Corporation.
  13
  14   This program is free software; you can redistribute it and/or modify
  15   it under the terms of the GNU General Public License as published by
  16   the Free Software Foundation; either version 2 of the License, or
  17   (at your option) any later version.
  18
  19   This program is distributed in the hope that it will be useful,
  20   but WITHOUT ANY WARRANTY; without even the implied warranty of
  21   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22   GNU General Public License for more details.
  23
  24   You should have received a copy of the GNU General Public License
  25   along with this program; see the file COPYING.  If not, write to
  26   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  27   Boston, MA 02110-1301, USA.
  28
  29 */
  30
  31 #include <linux/delay.h>
  32 #include <linux/init.h>
  33 #include <linux/moduleparam.h>
  34 #include <linux/if_arp.h>
  35 #include <linux/etherdevice.h>
  36 #include <linux/version.h>
  37 #include <linux/firmware.h>
  38 #include <linux/wireless.h>
  39 #include <linux/workqueue.h>
  40 #include <linux/skbuff.h>
  41 #include <linux/dma-mapping.h>
  42 #include <net/iw_handler.h>
  43
  44 #include "bcm43xx.h"
  45 #include "bcm43xx_main.h"
  46 #include "bcm43xx_debugfs.h"
  47 #include "bcm43xx_radio.h"
  48 #include "bcm43xx_phy.h"
  49 #include "bcm43xx_dma.h"
  50 #include "bcm43xx_pio.h"
  51 #include "bcm43xx_power.h"
  52 #include "bcm43xx_wx.h"
  53 #include "bcm43xx_ethtool.h"
  54 #include "bcm43xx_xmit.h"
  55 #include "bcm43xx_sysfs.h"
  56
  57
  58 MODULE_DESCRIPTION("Broadcom BCM43xx wireless driver");
  59 MODULE_AUTHOR("Martin Langer");
  60 MODULE_AUTHOR("Stefano Brivio");
  61 MODULE_AUTHOR("Michael Buesch");
  62 MODULE_LICENSE("GPL");
  63
  64 #ifdef CONFIG_BCM947XX
  65 extern char *nvram_get(char *name);
  66 #endif
  67
  68 #if defined(CONFIG_BCM43XX_DMA) && defined(CONFIG_BCM43XX_PIO)
  69 static int modparam_pio;
  70 module_param_named(pio, modparam_pio, int, 0444);
  71 MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode");
  72 #elif defined(CONFIG_BCM43XX_DMA)
  73 # define modparam_pio   0
  74 #elif defined(CONFIG_BCM43XX_PIO)
  75 # define modparam_pio   1
  76 #endif
  77
  78 static int modparam_bad_frames_preempt;
  79 module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
  80 MODULE_PARM_DESC(bad_frames_preempt, "enable(1) / disable(0) Bad Frames Preemption");
  81
  82 static int modparam_short_retry = BCM43xx_DEFAULT_SHORT_RETRY_LIMIT;
  83 module_param_named(short_retry, modparam_short_retry, int, 0444);
  84 MODULE_PARM_DESC(short_retry, "Short-Retry-Limit (0 - 15)");
  85
  86 static int modparam_long_retry = BCM43xx_DEFAULT_LONG_RETRY_LIMIT;
  87 module_param_named(long_retry, modparam_long_retry, int, 0444);
  88 MODULE_PARM_DESC(long_retry, "Long-Retry-Limit (0 - 15)");
  89
  90 static int modparam_locale = -1;
  91 module_param_named(locale, modparam_locale, int, 0444);
  92 MODULE_PARM_DESC(country, "Select LocaleCode 0-11 (For travelers)");
  93
  94 static int modparam_noleds;
  95 module_param_named(noleds, modparam_noleds, int, 0444);
  96 MODULE_PARM_DESC(noleds, "Turn off all LED activity");
  97
  98 #ifdef CONFIG_BCM43XX_DEBUG
  99 static char modparam_fwpostfix[64];
 100 module_param_string(fwpostfix, modparam_fwpostfix, 64, 0444);
 101 MODULE_PARM_DESC(fwpostfix, "Postfix for .fw files. Useful for debugging.");
 102 #else
 103 # define modparam_fwpostfix  ""
 104 #endif /* CONFIG_BCM43XX_DEBUG*/
 105
 106
 107 /* If you want to debug with just a single device, enable this,
 108  * where the string is the pci device ID (as given by the kernel's
 109  * pci_name function) of the device to be used.
 110  */
 111 //#define DEBUG_SINGLE_DEVICE_ONLY      "0001:11:00.0"
 112
 113 /* If you want to enable printing of each MMIO access, enable this. */
 114 //#define DEBUG_ENABLE_MMIO_PRINT
 115
 116 /* If you want to enable printing of MMIO access within
 117  * ucode/pcm upload, initvals write, enable this.
 118  */
 119 //#define DEBUG_ENABLE_UCODE_MMIO_PRINT
 120
 121 /* If you want to enable printing of PCI Config Space access, enable this */
 122 //#define DEBUG_ENABLE_PCILOG
 123
 124
 125 /* Detailed list maintained at:
 126  * http://openfacts.berlios.de/index-en.phtml?title=Bcm43xxDevices
 127  */
 128         static struct pci_device_id bcm43xx_pci_tbl[] = {
 129         /* Broadcom 4303 802.11b */
 130         { PCI_VENDOR_ID_BROADCOM, 0x4301, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 131         /* Broadcom 4307 802.11b */
 132         { PCI_VENDOR_ID_BROADCOM, 0x4307, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 133         /* Broadcom 4311 802.11(a)/b/g */
 134         { PCI_VENDOR_ID_BROADCOM, 0x4311, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 135         /* Broadcom 4312 802.11a/b/g */
 136         { PCI_VENDOR_ID_BROADCOM, 0x4312, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 137         /* Broadcom 4318 802.11b/g */
 138         { PCI_VENDOR_ID_BROADCOM, 0x4318, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 139         /* Broadcom 4319 802.11a/b/g */
 140         { PCI_VENDOR_ID_BROADCOM, 0x4319, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 141         /* Broadcom 4306 802.11b/g */
 142         { PCI_VENDOR_ID_BROADCOM, 0x4320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 143         /* Broadcom 4306 802.11a */
 144 //      { PCI_VENDOR_ID_BROADCOM, 0x4321, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 145         /* Broadcom 4309 802.11a/b/g */
 146         { PCI_VENDOR_ID_BROADCOM, 0x4324, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 147         /* Broadcom 43XG 802.11b/g */
 148         { PCI_VENDOR_ID_BROADCOM, 0x4325, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 149 #ifdef CONFIG_BCM947XX
 150         /* SB bus on BCM947xx */
 151         { PCI_VENDOR_ID_BROADCOM, 0x0800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 152 #endif
 153         { 0 },
 154 };
 155 MODULE_DEVICE_TABLE(pci, bcm43xx_pci_tbl);
 156
 157 static void bcm43xx_ram_write(struct bcm43xx_private *bcm, u16 offset, u32 val)
 158 {
 159         u32 status;
 160
 161         status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
 162         if (!(status & BCM43xx_SBF_XFER_REG_BYTESWAP))
 163                 val = swab32(val);
 164
 165         bcm43xx_write32(bcm, BCM43xx_MMIO_RAM_CONTROL, offset);
 166         mmiowb();
 167         bcm43xx_write32(bcm, BCM43xx_MMIO_RAM_DATA, val);
 168 }
 169
 170 static inline
 171 void bcm43xx_shm_control_word(struct bcm43xx_private *bcm,
 172                               u16 routing, u16 offset)
 173 {
 174         u32 control;
 175
 176         /* "offset" is the WORD offset. */
 177
 178         control = routing;
 179         control <<= 16;
 180         control |= offset;
 181         bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_CONTROL, control);
 182 }
 183
 184 u32 bcm43xx_shm_read32(struct bcm43xx_private *bcm,
 185                        u16 routing, u16 offset)
 186 {
 187         u32 ret;
 188
 189         if (routing == BCM43xx_SHM_SHARED) {
 190                 if (offset & 0x0003) {
 191                         /* Unaligned access */
 192                         bcm43xx_shm_control_word(bcm, routing, offset >> 2);
 193                         ret = bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED);
 194                         ret <<= 16;
 195                         bcm43xx_shm_control_word(bcm, routing, (offset >> 2) + 1);
 196                         ret |= bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA);
 197
 198                         return ret;
 199                 }
 200                 offset >>= 2;
 201         }
 202         bcm43xx_shm_control_word(bcm, routing, offset);
 203         ret = bcm43xx_read32(bcm, BCM43xx_MMIO_SHM_DATA);
 204
 205         return ret;
 206 }
 207
 208 u16 bcm43xx_shm_read16(struct bcm43xx_private *bcm,
 209                        u16 routing, u16 offset)
 210 {
 211         u16 ret;
 212
 213         if (routing == BCM43xx_SHM_SHARED) {
 214                 if (offset & 0x0003) {
 215                         /* Unaligned access */
 216                         bcm43xx_shm_control_word(bcm, routing, offset >> 2);
 217                         ret = bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED);
 218
 219                         return ret;
 220                 }
 221                 offset >>= 2;
 222         }
 223         bcm43xx_shm_control_word(bcm, routing, offset);
 224         ret = bcm43xx_read16(bcm, BCM43xx_MMIO_SHM_DATA);
 225
 226         return ret;
 227 }
 228
 229 void bcm43xx_shm_write32(struct bcm43xx_private *bcm,
 230                          u16 routing, u16 offset,
 231                          u32 value)
 232 {
 233         if (routing == BCM43xx_SHM_SHARED) {
 234                 if (offset & 0x0003) {
 235                         /* Unaligned access */
 236                         bcm43xx_shm_control_word(bcm, routing, offset >> 2);
 237                         mmiowb();
 238                         bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED,
 239                                         (value >> 16) & 0xffff);
 240                         mmiowb();
 241                         bcm43xx_shm_control_word(bcm, routing, (offset >> 2) + 1);
 242                         mmiowb();
 243                         bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA,
 244                                         value & 0xffff);
 245                         return;
 246                 }
 247                 offset >>= 2;
 248         }
 249         bcm43xx_shm_control_word(bcm, routing, offset);
 250         mmiowb();
 251         bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA, value);
 252 }
 253
 254 void bcm43xx_shm_write16(struct bcm43xx_private *bcm,
 255                          u16 routing, u16 offset,
 256                          u16 value)
 257 {
 258         if (routing == BCM43xx_SHM_SHARED) {
 259                 if (offset & 0x0003) {
 260                         /* Unaligned access */
 261                         bcm43xx_shm_control_word(bcm, routing, offset >> 2);
 262                         mmiowb();
 263                         bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA_UNALIGNED,
 264                                         value);
 265                         return;
 266                 }
 267                 offset >>= 2;
 268         }
 269         bcm43xx_shm_control_word(bcm, routing, offset);
 270         mmiowb();
 271         bcm43xx_write16(bcm, BCM43xx_MMIO_SHM_DATA, value);
 272 }
 273
 274 void bcm43xx_tsf_read(struct bcm43xx_private *bcm, u64 *tsf)
 275 {
 276         /* We need to be careful. As we read the TSF from multiple
 277          * registers, we should take care of register overflows.
 278          * In theory, the whole tsf read process should be atomic.
 279          * We try to be atomic here, by restaring the read process,
 280          * if any of the high registers changed (overflew).
 281          */
 282         if (bcm->current_core->rev >= 3) {
 283                 u32 low, high, high2;
 284
 285                 do {
 286                         high = bcm43xx_read32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_HIGH);
 287                         low = bcm43xx_read32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_LOW);
 288                         high2 = bcm43xx_read32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_HIGH);
 289                 } while (unlikely(high != high2));
 290
 291                 *tsf = high;
 292                 *tsf <<= 32;
 293                 *tsf |= low;
 294         } else {
 295                 u64 tmp;
 296                 u16 v0, v1, v2, v3;
 297                 u16 test1, test2, test3;
 298
 299                 do {
 300                         v3 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_3);
 301                         v2 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_2);
 302                         v1 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_1);
 303                         v0 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_0);
 304
 305                         test3 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_3);
 306                         test2 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_2);
 307                         test1 = bcm43xx_read16(bcm, BCM43xx_MMIO_TSF_1);
 308                 } while (v3 != test3 || v2 != test2 || v1 != test1);
 309
 310                 *tsf = v3;
 311                 *tsf <<= 48;
 312                 tmp = v2;
 313                 tmp <<= 32;
 314                 *tsf |= tmp;
 315                 tmp = v1;
 316                 tmp <<= 16;
 317                 *tsf |= tmp;
 318                 *tsf |= v0;
 319         }
 320 }
 321
 322 void bcm43xx_tsf_write(struct bcm43xx_private *bcm, u64 tsf)
 323 {
 324         u32 status;
 325
 326         status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
 327         status |= BCM43xx_SBF_TIME_UPDATE;
 328         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
 329         mmiowb();
 330
 331         /* Be careful with the in-progress timer.
 332          * First zero out the low register, so we have a full
 333          * register-overflow duration to complete the operation.
 334          */
 335         if (bcm->current_core->rev >= 3) {
 336                 u32 lo = (tsf & 0x00000000FFFFFFFFULL);
 337                 u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
 338
 339                 bcm43xx_write32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_LOW, 0);
 340                 mmiowb();
 341                 bcm43xx_write32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_HIGH, hi);
 342                 mmiowb();
 343                 bcm43xx_write32(bcm, BCM43xx_MMIO_REV3PLUS_TSF_LOW, lo);
 344         } else {
 345                 u16 v0 = (tsf & 0x000000000000FFFFULL);
 346                 u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
 347                 u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
 348                 u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
 349
 350                 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_0, 0);
 351                 mmiowb();
 352                 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_3, v3);
 353                 mmiowb();
 354                 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_2, v2);
 355                 mmiowb();
 356                 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_1, v1);
 357                 mmiowb();
 358                 bcm43xx_write16(bcm, BCM43xx_MMIO_TSF_0, v0);
 359         }
 360
 361         status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
 362         status &= ~BCM43xx_SBF_TIME_UPDATE;
 363         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
 364 }
 365
 366 static
 367 void bcm43xx_macfilter_set(struct bcm43xx_private *bcm,
 368                            u16 offset,
 369                            const u8 *mac)
 370 {
 371         u16 data;
 372
 373         offset |= 0x0020;
 374         bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_CONTROL, offset);
 375
 376         data = mac[0];
 377         data |= mac[1] << 8;
 378         bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_DATA, data);
 379         data = mac[2];
 380         data |= mac[3] << 8;
 381         bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_DATA, data);
 382         data = mac[4];
 383         data |= mac[5] << 8;
 384         bcm43xx_write16(bcm, BCM43xx_MMIO_MACFILTER_DATA, data);
 385 }
 386
 387 static void bcm43xx_macfilter_clear(struct bcm43xx_private *bcm,
 388                                     u16 offset)
 389 {
 390         const u8 zero_addr[ETH_ALEN] = { 0 };
 391
 392         bcm43xx_macfilter_set(bcm, offset, zero_addr);
 393 }
 394
 395 static void bcm43xx_write_mac_bssid_templates(struct bcm43xx_private *bcm)
 396 {
 397         const u8 *mac = (const u8 *)(bcm->net_dev->dev_addr);
 398         const u8 *bssid = (const u8 *)(bcm->ieee->bssid);
 399         u8 mac_bssid[ETH_ALEN * 2];
 400         int i;
 401
 402         memcpy(mac_bssid, mac, ETH_ALEN);
 403         memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
 404
 405         /* Write our MAC address and BSSID to template ram */
 406         for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32))
 407                 bcm43xx_ram_write(bcm, 0x20 + i, *((u32 *)(mac_bssid + i)));
 408         for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32))
 409                 bcm43xx_ram_write(bcm, 0x78 + i, *((u32 *)(mac_bssid + i)));
 410         for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32))
 411                 bcm43xx_ram_write(bcm, 0x478 + i, *((u32 *)(mac_bssid + i)));
 412 }
 413
 414 //FIXME: Well, we should probably call them from somewhere.
 415 #if 0
 416 static void bcm43xx_set_slot_time(struct bcm43xx_private *bcm, u16 slot_time)
 417 {
 418         /* slot_time is in usec. */
 419         if (bcm43xx_current_phy(bcm)->type != BCM43xx_PHYTYPE_G)
 420                 return;
 421         bcm43xx_write16(bcm, 0x684, 510 + slot_time);
 422         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0010, slot_time);
 423 }
 424
 425 static void bcm43xx_short_slot_timing_enable(struct bcm43xx_private *bcm)
 426 {
 427         bcm43xx_set_slot_time(bcm, 9);
 428 }
 429
 430 static void bcm43xx_short_slot_timing_disable(struct bcm43xx_private *bcm)
 431 {
 432         bcm43xx_set_slot_time(bcm, 20);
 433 }
 434 #endif
 435
 436 /* FIXME: To get the MAC-filter working, we need to implement the
 437  *        following functions (and rename them :)
 438  */
 439 #if 0
 440 static void bcm43xx_disassociate(struct bcm43xx_private *bcm)
 441 {
 442         bcm43xx_mac_suspend(bcm);
 443         bcm43xx_macfilter_clear(bcm, BCM43xx_MACFILTER_ASSOC);
 444
 445         bcm43xx_ram_write(bcm, 0x0026, 0x0000);
 446         bcm43xx_ram_write(bcm, 0x0028, 0x0000);
 447         bcm43xx_ram_write(bcm, 0x007E, 0x0000);
 448         bcm43xx_ram_write(bcm, 0x0080, 0x0000);
 449         bcm43xx_ram_write(bcm, 0x047E, 0x0000);
 450         bcm43xx_ram_write(bcm, 0x0480, 0x0000);
 451
 452         if (bcm->current_core->rev < 3) {
 453                 bcm43xx_write16(bcm, 0x0610, 0x8000);
 454                 bcm43xx_write16(bcm, 0x060E, 0x0000);
 455         } else
 456                 bcm43xx_write32(bcm, 0x0188, 0x80000000);
 457
 458         bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0004, 0x000003ff);
 459
 460         if (bcm43xx_current_phy(bcm)->type == BCM43xx_PHYTYPE_G &&
 461             ieee80211_is_ofdm_rate(bcm->softmac->txrates.default_rate))
 462                 bcm43xx_short_slot_timing_enable(bcm);
 463
 464         bcm43xx_mac_enable(bcm);
 465 }
 466
 467 static void bcm43xx_associate(struct bcm43xx_private *bcm,
 468                               const u8 *mac)
 469 {
 470         memcpy(bcm->ieee->bssid, mac, ETH_ALEN);
 471
 472         bcm43xx_mac_suspend(bcm);
 473         bcm43xx_macfilter_set(bcm, BCM43xx_MACFILTER_ASSOC, mac);
 474         bcm43xx_write_mac_bssid_templates(bcm);
 475         bcm43xx_mac_enable(bcm);
 476 }
 477 #endif
 478
 479 /* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable.
 480  * Returns the _previously_ enabled IRQ mask.
 481  */
 482 static inline u32 bcm43xx_interrupt_enable(struct bcm43xx_private *bcm, u32 mask)
 483 {
 484         u32 old_mask;
 485
 486         old_mask = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK);
 487         bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK, old_mask | mask);
 488
 489         return old_mask;
 490 }
 491
 492 /* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable.
 493  * Returns the _previously_ enabled IRQ mask.
 494  */
 495 static inline u32 bcm43xx_interrupt_disable(struct bcm43xx_private *bcm, u32 mask)
 496 {
 497         u32 old_mask;
 498
 499         old_mask = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK);
 500         bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK, old_mask & ~mask);
 501
 502         return old_mask;
 503 }
 504
 505 /* Synchronize IRQ top- and bottom-half.
 506  * IRQs must be masked before calling this.
 507  * This must not be called with the irq_lock held.
 508  */
 509 static void bcm43xx_synchronize_irq(struct bcm43xx_private *bcm)
 510 {
 511         synchronize_irq(bcm->irq);
 512         tasklet_disable(&bcm->isr_tasklet);
 513 }
 514
 515 /* Make sure we don't receive more data from the device. */
 516 static int bcm43xx_disable_interrupts_sync(struct bcm43xx_private *bcm)
 517 {
 518         unsigned long flags;
 519
 520         spin_lock_irqsave(&bcm->irq_lock, flags);
 521         if (unlikely(bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)) {
 522                 spin_unlock_irqrestore(&bcm->irq_lock, flags);
 523                 return -EBUSY;
 524         }
 525         bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
 526         bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK); /* flush */
 527         spin_unlock_irqrestore(&bcm->irq_lock, flags);
 528         bcm43xx_synchronize_irq(bcm);
 529
 530         return 0;
 531 }
 532
 533 static int bcm43xx_read_radioinfo(struct bcm43xx_private *bcm)
 534 {
 535         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
 536         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
 537         u32 radio_id;
 538         u16 manufact;
 539         u16 version;
 540         u8 revision;
 541
 542         if (bcm->chip_id == 0x4317) {
 543                 if (bcm->chip_rev == 0x00)
 544                         radio_id = 0x3205017F;
 545                 else if (bcm->chip_rev == 0x01)
 546                         radio_id = 0x4205017F;
 547                 else
 548                         radio_id = 0x5205017F;
 549         } else {
 550                 bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, BCM43xx_RADIOCTL_ID);
 551                 radio_id = bcm43xx_read16(bcm, BCM43xx_MMIO_RADIO_DATA_HIGH);
 552                 radio_id <<= 16;
 553                 bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, BCM43xx_RADIOCTL_ID);
 554                 radio_id |= bcm43xx_read16(bcm, BCM43xx_MMIO_RADIO_DATA_LOW);
 555         }
 556
 557         manufact = (radio_id & 0x00000FFF);
 558         version = (radio_id & 0x0FFFF000) >> 12;
 559         revision = (radio_id & 0xF0000000) >> 28;
 560
 561         dprintk(KERN_INFO PFX "Detected Radio: ID: %x (Manuf: %x Ver: %x Rev: %x)\n",
 562                 radio_id, manufact, version, revision);
 563
 564         switch (phy->type) {
 565         case BCM43xx_PHYTYPE_A:
 566                 if ((version != 0x2060) || (revision != 1) || (manufact != 0x17f))
 567                         goto err_unsupported_radio;
 568                 break;
 569         case BCM43xx_PHYTYPE_B:
 570                 if ((version & 0xFFF0) != 0x2050)
 571                         goto err_unsupported_radio;
 572                 break;
 573         case BCM43xx_PHYTYPE_G:
 574                 if (version != 0x2050)
 575                         goto err_unsupported_radio;
 576                 break;
 577         }
 578
 579         radio->manufact = manufact;
 580         radio->version = version;
 581         radio->revision = revision;
 582
 583         if (phy->type == BCM43xx_PHYTYPE_A)
 584                 radio->txpower_desired = bcm->sprom.maxpower_aphy;
 585         else
 586                 radio->txpower_desired = bcm->sprom.maxpower_bgphy;
 587
 588         return 0;
 589
 590 err_unsupported_radio:
 591         printk(KERN_ERR PFX "Unsupported Radio connected to the PHY!\n");
 592         return -ENODEV;
 593 }
 594
 595 static const char * bcm43xx_locale_iso(u8 locale)
 596 {
 597         /* ISO 3166-1 country codes.
 598          * Note that there aren't ISO 3166-1 codes for
 599          * all or locales. (Not all locales are countries)
 600          */
 601         switch (locale) {
 602         case BCM43xx_LOCALE_WORLD:
 603         case BCM43xx_LOCALE_ALL:
 604                 return "XX";
 605         case BCM43xx_LOCALE_THAILAND:
 606                 return "TH";
 607         case BCM43xx_LOCALE_ISRAEL:
 608                 return "IL";
 609         case BCM43xx_LOCALE_JORDAN:
 610                 return "JO";
 611         case BCM43xx_LOCALE_CHINA:
 612                 return "CN";
 613         case BCM43xx_LOCALE_JAPAN:
 614         case BCM43xx_LOCALE_JAPAN_HIGH:
 615                 return "JP";
 616         case BCM43xx_LOCALE_USA_CANADA_ANZ:
 617         case BCM43xx_LOCALE_USA_LOW:
 618                 return "US";
 619         case BCM43xx_LOCALE_EUROPE:
 620                 return "EU";
 621         case BCM43xx_LOCALE_NONE:
 622                 return "  ";
 623         }
 624         assert(0);
 625         return "  ";
 626 }
 627
 628 static const char * bcm43xx_locale_string(u8 locale)
 629 {
 630         switch (locale) {
 631         case BCM43xx_LOCALE_WORLD:
 632                 return "World";
 633         case BCM43xx_LOCALE_THAILAND:
 634                 return "Thailand";
 635         case BCM43xx_LOCALE_ISRAEL:
 636                 return "Israel";
 637         case BCM43xx_LOCALE_JORDAN:
 638                 return "Jordan";
 639         case BCM43xx_LOCALE_CHINA:
 640                 return "China";
 641         case BCM43xx_LOCALE_JAPAN:
 642                 return "Japan";
 643         case BCM43xx_LOCALE_USA_CANADA_ANZ:
 644                 return "USA/Canada/ANZ";
 645         case BCM43xx_LOCALE_EUROPE:
 646                 return "Europe";
 647         case BCM43xx_LOCALE_USA_LOW:
 648                 return "USAlow";
 649         case BCM43xx_LOCALE_JAPAN_HIGH:
 650                 return "JapanHigh";
 651         case BCM43xx_LOCALE_ALL:
 652                 return "All";
 653         case BCM43xx_LOCALE_NONE:
 654                 return "None";
 655         }
 656         assert(0);
 657         return "";
 658 }
 659
 660 static inline u8 bcm43xx_crc8(u8 crc, u8 data)
 661 {
 662         static const u8 t[] = {
 663                 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B,
 664                 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21,
 665                 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF,
 666                 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5,
 667                 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14,
 668                 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E,
 669                 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80,
 670                 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA,
 671                 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95,
 672                 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF,
 673                 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01,
 674                 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B,
 675                 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA,
 676                 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0,
 677                 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E,
 678                 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34,
 679                 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0,
 680                 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A,
 681                 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54,
 682                 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E,
 683                 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF,
 684                 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5,
 685                 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B,
 686                 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61,
 687                 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E,
 688                 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74,
 689                 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA,
 690                 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0,
 691                 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41,
 692                 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B,
 693                 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5,
 694                 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F,
 695         };
 696         return t[crc ^ data];
 697 }
 698
 699 static u8 bcm43xx_sprom_crc(const u16 *sprom)
 700 {
 701         int word;
 702         u8 crc = 0xFF;
 703
 704         for (word = 0; word < BCM43xx_SPROM_SIZE - 1; word++) {
 705                 crc = bcm43xx_crc8(crc, sprom[word] & 0x00FF);
 706                 crc = bcm43xx_crc8(crc, (sprom[word] & 0xFF00) >> 8);
 707         }
 708         crc = bcm43xx_crc8(crc, sprom[BCM43xx_SPROM_VERSION] & 0x00FF);
 709         crc ^= 0xFF;
 710
 711         return crc;
 712 }
 713
 714 int bcm43xx_sprom_read(struct bcm43xx_private *bcm, u16 *sprom)
 715 {
 716         int i;
 717         u8 crc, expected_crc;
 718
 719         for (i = 0; i < BCM43xx_SPROM_SIZE; i++)
 720                 sprom[i] = bcm43xx_read16(bcm, BCM43xx_SPROM_BASE + (i * 2));
 721         /* CRC-8 check. */
 722         crc = bcm43xx_sprom_crc(sprom);
 723         expected_crc = (sprom[BCM43xx_SPROM_VERSION] & 0xFF00) >> 8;
 724         if (crc != expected_crc) {
 725                 printk(KERN_WARNING PFX "WARNING: Invalid SPROM checksum "
 726                                         "(0x%02X, expected: 0x%02X)\n",
 727                        crc, expected_crc);
 728                 return -EINVAL;
 729         }
 730
 731         return 0;
 732 }
 733
 734 int bcm43xx_sprom_write(struct bcm43xx_private *bcm, const u16 *sprom)
 735 {
 736         int i, err;
 737         u8 crc, expected_crc;
 738         u32 spromctl;
 739
 740         /* CRC-8 validation of the input data. */
 741         crc = bcm43xx_sprom_crc(sprom);
 742         expected_crc = (sprom[BCM43xx_SPROM_VERSION] & 0xFF00) >> 8;
 743         if (crc != expected_crc) {
 744                 printk(KERN_ERR PFX "SPROM input data: Invalid CRC\n");
 745                 return -EINVAL;
 746         }
 747
 748         printk(KERN_INFO PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n");
 749         err = bcm43xx_pci_read_config32(bcm, BCM43xx_PCICFG_SPROMCTL, &spromctl);
 750         if (err)
 751                 goto err_ctlreg;
 752         spromctl |= 0x10; /* SPROM WRITE enable. */
 753         err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
 754         if (err)
 755                 goto err_ctlreg;
 756         /* We must burn lots of CPU cycles here, but that does not
 757          * really matter as one does not write the SPROM every other minute...
 758          */
 759         printk(KERN_INFO PFX "[ 0%%");
 760         mdelay(500);
 761         for (i = 0; i < BCM43xx_SPROM_SIZE; i++) {
 762                 if (i == 16)
 763                         printk("25%%");
 764                 else if (i == 32)
 765                         printk("50%%");
 766                 else if (i == 48)
 767                         printk("75%%");
 768                 else if (i % 2)
 769                         printk(".");
 770                 bcm43xx_write16(bcm, BCM43xx_SPROM_BASE + (i * 2), sprom[i]);
 771                 mmiowb();
 772                 mdelay(20);
 773         }
 774         spromctl &= ~0x10; /* SPROM WRITE enable. */
 775         err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_SPROMCTL, spromctl);
 776         if (err)
 777                 goto err_ctlreg;
 778         mdelay(500);
 779         printk("100%% ]\n");
 780         printk(KERN_INFO PFX "SPROM written.\n");
 781         bcm43xx_controller_restart(bcm, "SPROM update");
 782
 783         return 0;
 784 err_ctlreg:
 785         printk(KERN_ERR PFX "Could not access SPROM control register.\n");
 786         return -ENODEV;
 787 }
 788
 789 static int bcm43xx_sprom_extract(struct bcm43xx_private *bcm)
 790 {
 791         u16 value;
 792         u16 *sprom;
 793 #ifdef CONFIG_BCM947XX
 794         char *c;
 795 #endif
 796
 797         sprom = kzalloc(BCM43xx_SPROM_SIZE * sizeof(u16),
 798                         GFP_KERNEL);
 799         if (!sprom) {
 800                 printk(KERN_ERR PFX "sprom_extract OOM\n");
 801                 return -ENOMEM;
 802         }
 803 #ifdef CONFIG_BCM947XX
 804         sprom[BCM43xx_SPROM_BOARDFLAGS2] = atoi(nvram_get("boardflags2"));
 805         sprom[BCM43xx_SPROM_BOARDFLAGS] = atoi(nvram_get("boardflags"));
 806
 807         if ((c = nvram_get("il0macaddr")) != NULL)
 808                 e_aton(c, (char *) &(sprom[BCM43xx_SPROM_IL0MACADDR]));
 809
 810         if ((c = nvram_get("et1macaddr")) != NULL)
 811                 e_aton(c, (char *) &(sprom[BCM43xx_SPROM_ET1MACADDR]));
 812
 813         sprom[BCM43xx_SPROM_PA0B0] = atoi(nvram_get("pa0b0"));
 814         sprom[BCM43xx_SPROM_PA0B1] = atoi(nvram_get("pa0b1"));
 815         sprom[BCM43xx_SPROM_PA0B2] = atoi(nvram_get("pa0b2"));
 816
 817         sprom[BCM43xx_SPROM_PA1B0] = atoi(nvram_get("pa1b0"));
 818         sprom[BCM43xx_SPROM_PA1B1] = atoi(nvram_get("pa1b1"));
 819         sprom[BCM43xx_SPROM_PA1B2] = atoi(nvram_get("pa1b2"));
 820
 821         sprom[BCM43xx_SPROM_BOARDREV] = atoi(nvram_get("boardrev"));
 822 #else
 823         bcm43xx_sprom_read(bcm, sprom);
 824 #endif
 825
 826         /* boardflags2 */
 827         value = sprom[BCM43xx_SPROM_BOARDFLAGS2];
 828         bcm->sprom.boardflags2 = value;
 829
 830         /* il0macaddr */
 831         value = sprom[BCM43xx_SPROM_IL0MACADDR + 0];
 832         *(((u16 *)bcm->sprom.il0macaddr) + 0) = cpu_to_be16(value);
 833         value = sprom[BCM43xx_SPROM_IL0MACADDR + 1];
 834         *(((u16 *)bcm->sprom.il0macaddr) + 1) = cpu_to_be16(value);
 835         value = sprom[BCM43xx_SPROM_IL0MACADDR + 2];
 836         *(((u16 *)bcm->sprom.il0macaddr) + 2) = cpu_to_be16(value);
 837
 838         /* et0macaddr */
 839         value = sprom[BCM43xx_SPROM_ET0MACADDR + 0];
 840         *(((u16 *)bcm->sprom.et0macaddr) + 0) = cpu_to_be16(value);
 841         value = sprom[BCM43xx_SPROM_ET0MACADDR + 1];
 842         *(((u16 *)bcm->sprom.et0macaddr) + 1) = cpu_to_be16(value);
 843         value = sprom[BCM43xx_SPROM_ET0MACADDR + 2];
 844         *(((u16 *)bcm->sprom.et0macaddr) + 2) = cpu_to_be16(value);
 845
 846         /* et1macaddr */
 847         value = sprom[BCM43xx_SPROM_ET1MACADDR + 0];
 848         *(((u16 *)bcm->sprom.et1macaddr) + 0) = cpu_to_be16(value);
 849         value = sprom[BCM43xx_SPROM_ET1MACADDR + 1];
 850         *(((u16 *)bcm->sprom.et1macaddr) + 1) = cpu_to_be16(value);
 851         value = sprom[BCM43xx_SPROM_ET1MACADDR + 2];
 852         *(((u16 *)bcm->sprom.et1macaddr) + 2) = cpu_to_be16(value);
 853
 854         /* ethernet phy settings */
 855         value = sprom[BCM43xx_SPROM_ETHPHY];
 856         bcm->sprom.et0phyaddr = (value & 0x001F);
 857         bcm->sprom.et1phyaddr = (value & 0x03E0) >> 5;
 858         bcm->sprom.et0mdcport = (value & (1 << 14)) >> 14;
 859         bcm->sprom.et1mdcport = (value & (1 << 15)) >> 15;
 860
 861         /* boardrev, antennas, locale */
 862         value = sprom[BCM43xx_SPROM_BOARDREV];
 863         bcm->sprom.boardrev = (value & 0x00FF);
 864         bcm->sprom.locale = (value & 0x0F00) >> 8;
 865         bcm->sprom.antennas_aphy = (value & 0x3000) >> 12;
 866         bcm->sprom.antennas_bgphy = (value & 0xC000) >> 14;
 867         if (modparam_locale != -1) {
 868                 if (modparam_locale >= 0 && modparam_locale <= 11) {
 869                         bcm->sprom.locale = modparam_locale;
 870                         printk(KERN_WARNING PFX "Operating with modified "
 871                                                 "LocaleCode %u (%s)\n",
 872                                bcm->sprom.locale,
 873                                bcm43xx_locale_string(bcm->sprom.locale));
 874                 } else {
 875                         printk(KERN_WARNING PFX "Module parameter \"locale\" "
 876                                                 "invalid value. (0 - 11)\n");
 877                 }
 878         }
 879
 880         /* pa0b* */
 881         value = sprom[BCM43xx_SPROM_PA0B0];
 882         bcm->sprom.pa0b0 = value;
 883         value = sprom[BCM43xx_SPROM_PA0B1];
 884         bcm->sprom.pa0b1 = value;
 885         value = sprom[BCM43xx_SPROM_PA0B2];
 886         bcm->sprom.pa0b2 = value;
 887
 888         /* wl0gpio* */
 889         value = sprom[BCM43xx_SPROM_WL0GPIO0];
 890         if (value == 0x0000)
 891                 value = 0xFFFF;
 892         bcm->sprom.wl0gpio0 = value & 0x00FF;
 893         bcm->sprom.wl0gpio1 = (value & 0xFF00) >> 8;
 894         value = sprom[BCM43xx_SPROM_WL0GPIO2];
 895         if (value == 0x0000)
 896                 value = 0xFFFF;
 897         bcm->sprom.wl0gpio2 = value & 0x00FF;
 898         bcm->sprom.wl0gpio3 = (value & 0xFF00) >> 8;
 899
 900         /* maxpower */
 901         value = sprom[BCM43xx_SPROM_MAXPWR];
 902         bcm->sprom.maxpower_aphy = (value & 0xFF00) >> 8;
 903         bcm->sprom.maxpower_bgphy = value & 0x00FF;
 904
 905         /* pa1b* */
 906         value = sprom[BCM43xx_SPROM_PA1B0];
 907         bcm->sprom.pa1b0 = value;
 908         value = sprom[BCM43xx_SPROM_PA1B1];
 909         bcm->sprom.pa1b1 = value;
 910         value = sprom[BCM43xx_SPROM_PA1B2];
 911         bcm->sprom.pa1b2 = value;
 912
 913         /* idle tssi target */
 914         value = sprom[BCM43xx_SPROM_IDL_TSSI_TGT];
 915         bcm->sprom.idle_tssi_tgt_aphy = value & 0x00FF;
 916         bcm->sprom.idle_tssi_tgt_bgphy = (value & 0xFF00) >> 8;
 917
 918         /* boardflags */
 919         value = sprom[BCM43xx_SPROM_BOARDFLAGS];
 920         if (value == 0xFFFF)
 921                 value = 0x0000;
 922         bcm->sprom.boardflags = value;
 923         /* boardflags workarounds */
 924         if (bcm->board_vendor == PCI_VENDOR_ID_DELL &&
 925             bcm->chip_id == 0x4301 &&
 926             bcm->board_revision == 0x74)
 927                 bcm->sprom.boardflags |= BCM43xx_BFL_BTCOEXIST;
 928         if (bcm->board_vendor == PCI_VENDOR_ID_APPLE &&
 929             bcm->board_type == 0x4E &&
 930             bcm->board_revision > 0x40)
 931                 bcm->sprom.boardflags |= BCM43xx_BFL_PACTRL;
 932
 933         /* antenna gain */
 934         value = sprom[BCM43xx_SPROM_ANTENNA_GAIN];
 935         if (value == 0x0000 || value == 0xFFFF)
 936                 value = 0x0202;
 937         /* convert values to Q5.2 */
 938         bcm->sprom.antennagain_aphy = ((value & 0xFF00) >> 8) * 4;
 939         bcm->sprom.antennagain_bgphy = (value & 0x00FF) * 4;
 940
 941         kfree(sprom);
 942
 943         return 0;
 944 }
 945
 946 static int bcm43xx_geo_init(struct bcm43xx_private *bcm)
 947 {
 948         struct ieee80211_geo *geo;
 949         struct ieee80211_channel *chan;
 950         int have_a = 0, have_bg = 0;
 951         int i;
 952         u8 channel;
 953         struct bcm43xx_phyinfo *phy;
 954         const char *iso_country;
 955
 956         geo = kzalloc(sizeof(*geo), GFP_KERNEL);
 957         if (!geo)
 958                 return -ENOMEM;
 959
 960         for (i = 0; i < bcm->nr_80211_available; i++) {
 961                 phy = &(bcm->core_80211_ext[i].phy);
 962                 switch (phy->type) {
 963                 case BCM43xx_PHYTYPE_B:
 964                 case BCM43xx_PHYTYPE_G:
 965                         have_bg = 1;
 966                         break;
 967                 case BCM43xx_PHYTYPE_A:
 968                         have_a = 1;
 969                         break;
 970                 default:
 971                         assert(0);
 972                 }
 973         }
 974         iso_country = bcm43xx_locale_iso(bcm->sprom.locale);
 975
 976         if (have_a) {
 977                 for (i = 0, channel = IEEE80211_52GHZ_MIN_CHANNEL;
 978                       channel <= IEEE80211_52GHZ_MAX_CHANNEL; channel++) {
 979                         chan = &geo->a[i++];
 980                         chan->freq = bcm43xx_channel_to_freq_a(channel);
 981                         chan->channel = channel;
 982                 }
 983                 geo->a_channels = i;
 984         }
 985         if (have_bg) {
 986                 for (i = 0, channel = IEEE80211_24GHZ_MIN_CHANNEL;
 987                       channel <= IEEE80211_24GHZ_MAX_CHANNEL; channel++) {
 988                         chan = &geo->bg[i++];
 989                         chan->freq = bcm43xx_channel_to_freq_bg(channel);
 990                         chan->channel = channel;
 991                 }
 992                 geo->bg_channels = i;
 993         }
 994         memcpy(geo->name, iso_country, 2);
 995         if (0 /*TODO: Outdoor use only */)
 996                 geo->name[2] = 'O';
 997         else if (0 /*TODO: Indoor use only */)
 998                 geo->name[2] = 'I';
 999         else
1000                 geo->name[2] = ' ';
1001         geo->name[3] = '\0';
1002
1003         ieee80211_set_geo(bcm->ieee, geo);
1004         kfree(geo);
1005
1006         return 0;
1007 }
1008
1009 /* DummyTransmission function, as documented on
1010  * http://bcm-specs.sipsolutions.net/DummyTransmission
1011  */
1012 void bcm43xx_dummy_transmission(struct bcm43xx_private *bcm)
1013 {
1014         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1015         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1016         unsigned int i, max_loop;
1017         u16 value = 0;
1018         u32 buffer[5] = {
1019                 0x00000000,
1020                 0x0000D400,
1021                 0x00000000,
1022                 0x00000001,
1023                 0x00000000,
1024         };
1025
1026         switch (phy->type) {
1027         case BCM43xx_PHYTYPE_A:
1028                 max_loop = 0x1E;
1029                 buffer[0] = 0xCC010200;
1030                 break;
1031         case BCM43xx_PHYTYPE_B:
1032         case BCM43xx_PHYTYPE_G:
1033                 max_loop = 0xFA;
1034                 buffer[0] = 0x6E840B00;
1035                 break;
1036         default:
1037                 assert(0);
1038                 return;
1039         }
1040
1041         for (i = 0; i < 5; i++)
1042                 bcm43xx_ram_write(bcm, i * 4, buffer[i]);
1043
1044         bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); /* dummy read */
1045
1046         bcm43xx_write16(bcm, 0x0568, 0x0000);
1047         bcm43xx_write16(bcm, 0x07C0, 0x0000);
1048         bcm43xx_write16(bcm, 0x050C, ((phy->type == BCM43xx_PHYTYPE_A) ? 1 : 0));
1049         bcm43xx_write16(bcm, 0x0508, 0x0000);
1050         bcm43xx_write16(bcm, 0x050A, 0x0000);
1051         bcm43xx_write16(bcm, 0x054C, 0x0000);
1052         bcm43xx_write16(bcm, 0x056A, 0x0014);
1053         bcm43xx_write16(bcm, 0x0568, 0x0826);
1054         bcm43xx_write16(bcm, 0x0500, 0x0000);
1055         bcm43xx_write16(bcm, 0x0502, 0x0030);
1056
1057         if (radio->version == 0x2050 && radio->revision <= 0x5)
1058                 bcm43xx_radio_write16(bcm, 0x0051, 0x0017);
1059         for (i = 0x00; i < max_loop; i++) {
1060                 value = bcm43xx_read16(bcm, 0x050E);
1061                 if (value & 0x0080)
1062                         break;
1063                 udelay(10);
1064         }
1065         for (i = 0x00; i < 0x0A; i++) {
1066                 value = bcm43xx_read16(bcm, 0x050E);
1067                 if (value & 0x0400)
1068                         break;
1069                 udelay(10);
1070         }
1071         for (i = 0x00; i < 0x0A; i++) {
1072                 value = bcm43xx_read16(bcm, 0x0690);
1073                 if (!(value & 0x0100))
1074                         break;
1075                 udelay(10);
1076         }
1077         if (radio->version == 0x2050 && radio->revision <= 0x5)
1078                 bcm43xx_radio_write16(bcm, 0x0051, 0x0037);
1079 }
1080
1081 static void key_write(struct bcm43xx_private *bcm,
1082                       u8 index, u8 algorithm, const u16 *key)
1083 {
1084         unsigned int i, basic_wep = 0;
1085         u32 offset;
1086         u16 value;
1087
1088         /* Write associated key information */
1089         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x100 + (index * 2),
1090                             ((index << 4) | (algorithm & 0x0F)));
1091
1092         /* The first 4 WEP keys need extra love */
1093         if (((algorithm == BCM43xx_SEC_ALGO_WEP) ||
1094             (algorithm == BCM43xx_SEC_ALGO_WEP104)) && (index < 4))
1095                 basic_wep = 1;
1096
1097         /* Write key payload, 8 little endian words */
1098         offset = bcm->security_offset + (index * BCM43xx_SEC_KEYSIZE);
1099         for (i = 0; i < (BCM43xx_SEC_KEYSIZE / sizeof(u16)); i++) {
1100                 value = cpu_to_le16(key[i]);
1101                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED,
1102                                     offset + (i * 2), value);
1103
1104                 if (!basic_wep)
1105                         continue;
1106
1107                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED,
1108                                     offset + (i * 2) + 4 * BCM43xx_SEC_KEYSIZE,
1109                                     value);
1110         }
1111 }
1112
1113 static void keymac_write(struct bcm43xx_private *bcm,
1114                          u8 index, const u32 *addr)
1115 {
1116         /* for keys 0-3 there is no associated mac address */
1117         if (index < 4)
1118                 return;
1119
1120         index -= 4;
1121         if (bcm->current_core->rev >= 5) {
1122                 bcm43xx_shm_write32(bcm,
1123                                     BCM43xx_SHM_HWMAC,
1124                                     index * 2,
1125                                     cpu_to_be32(*addr));
1126                 bcm43xx_shm_write16(bcm,
1127                                     BCM43xx_SHM_HWMAC,
1128                                     (index * 2) + 1,
1129                                     cpu_to_be16(*((u16 *)(addr + 1))));
1130         } else {
1131                 if (index < 8) {
1132                         TODO(); /* Put them in the macaddress filter */
1133                 } else {
1134                         TODO();
1135                         /* Put them BCM43xx_SHM_SHARED, stating index 0x0120.
1136                            Keep in mind to update the count of keymacs in 0x003E as well! */
1137                 }
1138         }
1139 }
1140
1141 static int bcm43xx_key_write(struct bcm43xx_private *bcm,
1142                              u8 index, u8 algorithm,
1143                              const u8 *_key, int key_len,
1144                              const u8 *mac_addr)
1145 {
1146         u8 key[BCM43xx_SEC_KEYSIZE] = { 0 };
1147
1148         if (index >= ARRAY_SIZE(bcm->key))
1149                 return -EINVAL;
1150         if (key_len > ARRAY_SIZE(key))
1151                 return -EINVAL;
1152         if (algorithm < 1 || algorithm > 5)
1153                 return -EINVAL;
1154
1155         memcpy(key, _key, key_len);
1156         key_write(bcm, index, algorithm, (const u16 *)key);
1157         keymac_write(bcm, index, (const u32 *)mac_addr);
1158
1159         bcm->key[index].algorithm = algorithm;
1160
1161         return 0;
1162 }
1163
1164 static void bcm43xx_clear_keys(struct bcm43xx_private *bcm)
1165 {
1166         static const u32 zero_mac[2] = { 0 };
1167         unsigned int i,j, nr_keys = 54;
1168         u16 offset;
1169
1170         if (bcm->current_core->rev < 5)
1171                 nr_keys = 16;
1172         assert(nr_keys <= ARRAY_SIZE(bcm->key));
1173
1174         for (i = 0; i < nr_keys; i++) {
1175                 bcm->key[i].enabled = 0;
1176                 /* returns for i < 4 immediately */
1177                 keymac_write(bcm, i, zero_mac);
1178                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED,
1179                                     0x100 + (i * 2), 0x0000);
1180                 for (j = 0; j < 8; j++) {
1181                         offset = bcm->security_offset + (j * 4) + (i * BCM43xx_SEC_KEYSIZE);
1182                         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED,
1183                                             offset, 0x0000);
1184                 }
1185         }
1186         dprintk(KERN_INFO PFX "Keys cleared\n");
1187 }
1188
1189 /* Lowlevel core-switch function. This is only to be used in
1190  * bcm43xx_switch_core() and bcm43xx_probe_cores()
1191  */
1192 static int _switch_core(struct bcm43xx_private *bcm, int core)
1193 {
1194         int err;
1195         int attempts = 0;
1196         u32 current_core;
1197
1198         assert(core >= 0);
1199         while (1) {
1200                 err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_ACTIVE_CORE,
1201                                                  (core * 0x1000) + 0x18000000);
1202                 if (unlikely(err))
1203                         goto error;
1204                 err = bcm43xx_pci_read_config32(bcm, BCM43xx_PCICFG_ACTIVE_CORE,
1205                                                 &current_core);
1206                 if (unlikely(err))
1207                         goto error;
1208                 current_core = (current_core - 0x18000000) / 0x1000;
1209                 if (current_core == core)
1210                         break;
1211
1212                 if (unlikely(attempts++ > BCM43xx_SWITCH_CORE_MAX_RETRIES))
1213                         goto error;
1214                 udelay(10);
1215         }
1216 #ifdef CONFIG_BCM947XX
1217         if (bcm->pci_dev->bus->number == 0)
1218                 bcm->current_core_offset = 0x1000 * core;
1219         else
1220                 bcm->current_core_offset = 0;
1221 #endif
1222
1223         return 0;
1224 error:
1225         printk(KERN_ERR PFX "Failed to switch to core %d\n", core);
1226         return -ENODEV;
1227 }
1228
1229 int bcm43xx_switch_core(struct bcm43xx_private *bcm, struct bcm43xx_coreinfo *new_core)
1230 {
1231         int err;
1232
1233         if (unlikely(!new_core))
1234                 return 0;
1235         if (!new_core->available)
1236                 return -ENODEV;
1237         if (bcm->current_core == new_core)
1238                 return 0;
1239         err = _switch_core(bcm, new_core->index);
1240         if (unlikely(err))
1241                 goto out;
1242
1243         bcm->current_core = new_core;
1244 out:
1245         return err;
1246 }
1247
1248 static int bcm43xx_core_enabled(struct bcm43xx_private *bcm)
1249 {
1250         u32 value;
1251
1252         value = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1253         value &= BCM43xx_SBTMSTATELOW_CLOCK | BCM43xx_SBTMSTATELOW_RESET
1254                  | BCM43xx_SBTMSTATELOW_REJECT;
1255
1256         return (value == BCM43xx_SBTMSTATELOW_CLOCK);
1257 }
1258
1259 /* disable current core */
1260 static int bcm43xx_core_disable(struct bcm43xx_private *bcm, u32 core_flags)
1261 {
1262         u32 sbtmstatelow;
1263         u32 sbtmstatehigh;
1264         int i;
1265
1266         /* fetch sbtmstatelow from core information registers */
1267         sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1268
1269         /* core is already in reset */
1270         if (sbtmstatelow & BCM43xx_SBTMSTATELOW_RESET)
1271                 goto out;
1272
1273         if (sbtmstatelow & BCM43xx_SBTMSTATELOW_CLOCK) {
1274                 sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK |
1275                                BCM43xx_SBTMSTATELOW_REJECT;
1276                 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1277
1278                 for (i = 0; i < 1000; i++) {
1279                         sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1280                         if (sbtmstatelow & BCM43xx_SBTMSTATELOW_REJECT) {
1281                                 i = -1;
1282                                 break;
1283                         }
1284                         udelay(10);
1285                 }
1286                 if (i != -1) {
1287                         printk(KERN_ERR PFX "Error: core_disable() REJECT timeout!\n");
1288                         return -EBUSY;
1289                 }
1290
1291                 for (i = 0; i < 1000; i++) {
1292                         sbtmstatehigh = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATEHIGH);
1293                         if (!(sbtmstatehigh & BCM43xx_SBTMSTATEHIGH_BUSY)) {
1294                                 i = -1;
1295                                 break;
1296                         }
1297                         udelay(10);
1298                 }
1299                 if (i != -1) {
1300                         printk(KERN_ERR PFX "Error: core_disable() BUSY timeout!\n");
1301                         return -EBUSY;
1302                 }
1303
1304                 sbtmstatelow = BCM43xx_SBTMSTATELOW_FORCE_GATE_CLOCK |
1305                                BCM43xx_SBTMSTATELOW_REJECT |
1306                                BCM43xx_SBTMSTATELOW_RESET |
1307                                BCM43xx_SBTMSTATELOW_CLOCK |
1308                                core_flags;
1309                 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1310                 udelay(10);
1311         }
1312
1313         sbtmstatelow = BCM43xx_SBTMSTATELOW_RESET |
1314                        BCM43xx_SBTMSTATELOW_REJECT |
1315                        core_flags;
1316         bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1317
1318 out:
1319         bcm->current_core->enabled = 0;
1320
1321         return 0;
1322 }
1323
1324 /* enable (reset) current core */
1325 static int bcm43xx_core_enable(struct bcm43xx_private *bcm, u32 core_flags)
1326 {
1327         u32 sbtmstatelow;
1328         u32 sbtmstatehigh;
1329         u32 sbimstate;
1330         int err;
1331
1332         err = bcm43xx_core_disable(bcm, core_flags);
1333         if (err)
1334                 goto out;
1335
1336         sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK |
1337                        BCM43xx_SBTMSTATELOW_RESET |
1338                        BCM43xx_SBTMSTATELOW_FORCE_GATE_CLOCK |
1339                        core_flags;
1340         bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1341         udelay(1);
1342
1343         sbtmstatehigh = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATEHIGH);
1344         if (sbtmstatehigh & BCM43xx_SBTMSTATEHIGH_SERROR) {
1345                 sbtmstatehigh = 0x00000000;
1346                 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATEHIGH, sbtmstatehigh);
1347         }
1348
1349         sbimstate = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMSTATE);
1350         if (sbimstate & (BCM43xx_SBIMSTATE_IB_ERROR | BCM43xx_SBIMSTATE_TIMEOUT)) {
1351                 sbimstate &= ~(BCM43xx_SBIMSTATE_IB_ERROR | BCM43xx_SBIMSTATE_TIMEOUT);
1352                 bcm43xx_write32(bcm, BCM43xx_CIR_SBIMSTATE, sbimstate);
1353         }
1354
1355         sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK |
1356                        BCM43xx_SBTMSTATELOW_FORCE_GATE_CLOCK |
1357                        core_flags;
1358         bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1359         udelay(1);
1360
1361         sbtmstatelow = BCM43xx_SBTMSTATELOW_CLOCK | core_flags;
1362         bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1363         udelay(1);
1364
1365         bcm->current_core->enabled = 1;
1366         assert(err == 0);
1367 out:
1368         return err;
1369 }
1370
1371 /* http://bcm-specs.sipsolutions.net/80211CoreReset */
1372 void bcm43xx_wireless_core_reset(struct bcm43xx_private *bcm, int connect_phy)
1373 {
1374         u32 flags = 0x00040000;
1375
1376         if ((bcm43xx_core_enabled(bcm)) &&
1377             !bcm43xx_using_pio(bcm)) {
1378 //FIXME: Do we _really_ want #ifndef CONFIG_BCM947XX here?
1379 #if 0
1380 #ifndef CONFIG_BCM947XX
1381                 /* reset all used DMA controllers. */
1382                 bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA1_BASE);
1383                 bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA2_BASE);
1384                 bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA3_BASE);
1385                 bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA4_BASE);
1386                 bcm43xx_dmacontroller_rx_reset(bcm, BCM43xx_MMIO_DMA1_BASE);
1387                 if (bcm->current_core->rev < 5)
1388                         bcm43xx_dmacontroller_rx_reset(bcm, BCM43xx_MMIO_DMA4_BASE);
1389 #endif
1390 #endif
1391         }
1392         if (bcm43xx_status(bcm) == BCM43xx_STAT_SHUTTINGDOWN) {
1393                 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
1394                                 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
1395                                 & ~(BCM43xx_SBF_MAC_ENABLED | 0x00000002));
1396         } else {
1397                 if (connect_phy)
1398                         flags |= 0x20000000;
1399                 bcm43xx_phy_connect(bcm, connect_phy);
1400                 bcm43xx_core_enable(bcm, flags);
1401                 bcm43xx_write16(bcm, 0x03E6, 0x0000);
1402                 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
1403                                 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
1404                                 | BCM43xx_SBF_400);
1405         }
1406 }
1407
1408 static void bcm43xx_wireless_core_disable(struct bcm43xx_private *bcm)
1409 {
1410         bcm43xx_radio_turn_off(bcm);
1411         bcm43xx_write16(bcm, 0x03E6, 0x00F4);
1412         bcm43xx_core_disable(bcm, 0);
1413 }
1414
1415 /* Mark the current 80211 core inactive. */
1416 static void bcm43xx_wireless_core_mark_inactive(struct bcm43xx_private *bcm)
1417 {
1418         u32 sbtmstatelow;
1419
1420         bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
1421         bcm43xx_radio_turn_off(bcm);
1422         sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1423         sbtmstatelow &= 0xDFF5FFFF;
1424         sbtmstatelow |= 0x000A0000;
1425         bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1426         udelay(1);
1427         sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
1428         sbtmstatelow &= 0xFFF5FFFF;
1429         sbtmstatelow |= 0x00080000;
1430         bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
1431         udelay(1);
1432 }
1433
1434 static void handle_irq_transmit_status(struct bcm43xx_private *bcm)
1435 {
1436         u32 v0, v1;
1437         u16 tmp;
1438         struct bcm43xx_xmitstatus stat;
1439
1440         while (1) {
1441                 v0 = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_0);
1442                 if (!v0)
1443                         break;
1444                 v1 = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_1);
1445
1446                 stat.cookie = (v0 >> 16) & 0x0000FFFF;
1447                 tmp = (u16)((v0 & 0xFFF0) | ((v0 & 0xF) >> 1));
1448                 stat.flags = tmp & 0xFF;
1449                 stat.cnt1 = (tmp & 0x0F00) >> 8;
1450                 stat.cnt2 = (tmp & 0xF000) >> 12;
1451                 stat.seq = (u16)(v1 & 0xFFFF);
1452                 stat.unknown = (u16)((v1 >> 16) & 0xFF);
1453
1454                 bcm43xx_debugfs_log_txstat(bcm, &stat);
1455
1456                 if (stat.flags & BCM43xx_TXSTAT_FLAG_IGNORE)
1457                         continue;
1458                 if (!(stat.flags & BCM43xx_TXSTAT_FLAG_ACK)) {
1459                         //TODO: packet was not acked (was lost)
1460                 }
1461                 //TODO: There are more (unknown) flags to test. see bcm43xx_main.h
1462
1463                 if (bcm43xx_using_pio(bcm))
1464                         bcm43xx_pio_handle_xmitstatus(bcm, &stat);
1465                 else
1466                         bcm43xx_dma_handle_xmitstatus(bcm, &stat);
1467         }
1468 }
1469
1470 static void drain_txstatus_queue(struct bcm43xx_private *bcm)
1471 {
1472         u32 dummy;
1473
1474         if (bcm->current_core->rev < 5)
1475                 return;
1476         /* Read all entries from the microcode TXstatus FIFO
1477          * and throw them away.
1478          */
1479         while (1) {
1480                 dummy = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_0);
1481                 if (!dummy)
1482                         break;
1483                 dummy = bcm43xx_read32(bcm, BCM43xx_MMIO_XMITSTAT_1);
1484         }
1485 }
1486
1487 static void bcm43xx_generate_noise_sample(struct bcm43xx_private *bcm)
1488 {
1489         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x408, 0x7F7F);
1490         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x40A, 0x7F7F);
1491         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD,
1492                         bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD) | (1 << 4));
1493         assert(bcm->noisecalc.core_at_start == bcm->current_core);
1494         assert(bcm->noisecalc.channel_at_start == bcm43xx_current_radio(bcm)->channel);
1495 }
1496
1497 static void bcm43xx_calculate_link_quality(struct bcm43xx_private *bcm)
1498 {
1499         /* Top half of Link Quality calculation. */
1500
1501         if (bcm->noisecalc.calculation_running)
1502                 return;
1503         bcm->noisecalc.core_at_start = bcm->current_core;
1504         bcm->noisecalc.channel_at_start = bcm43xx_current_radio(bcm)->channel;
1505         bcm->noisecalc.calculation_running = 1;
1506         bcm->noisecalc.nr_samples = 0;
1507
1508         bcm43xx_generate_noise_sample(bcm);
1509 }
1510
1511 static void handle_irq_noise(struct bcm43xx_private *bcm)
1512 {
1513         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1514         u16 tmp;
1515         u8 noise[4];
1516         u8 i, j;
1517         s32 average;
1518
1519         /* Bottom half of Link Quality calculation. */
1520
1521         assert(bcm->noisecalc.calculation_running);
1522         if (bcm->noisecalc.core_at_start != bcm->current_core ||
1523             bcm->noisecalc.channel_at_start != radio->channel)
1524                 goto drop_calculation;
1525         tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x408);
1526         noise[0] = (tmp & 0x00FF);
1527         noise[1] = (tmp & 0xFF00) >> 8;
1528         tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x40A);
1529         noise[2] = (tmp & 0x00FF);
1530         noise[3] = (tmp & 0xFF00) >> 8;
1531         if (noise[0] == 0x7F || noise[1] == 0x7F ||
1532             noise[2] == 0x7F || noise[3] == 0x7F)
1533                 goto generate_new;
1534
1535         /* Get the noise samples. */
1536         assert(bcm->noisecalc.nr_samples < 8);
1537         i = bcm->noisecalc.nr_samples;
1538         noise[0] = limit_value(noise[0], 0, ARRAY_SIZE(radio->nrssi_lt) - 1);
1539         noise[1] = limit_value(noise[1], 0, ARRAY_SIZE(radio->nrssi_lt) - 1);
1540         noise[2] = limit_value(noise[2], 0, ARRAY_SIZE(radio->nrssi_lt) - 1);
1541         noise[3] = limit_value(noise[3], 0, ARRAY_SIZE(radio->nrssi_lt) - 1);
1542         bcm->noisecalc.samples[i][0] = radio->nrssi_lt[noise[0]];
1543         bcm->noisecalc.samples[i][1] = radio->nrssi_lt[noise[1]];
1544         bcm->noisecalc.samples[i][2] = radio->nrssi_lt[noise[2]];
1545         bcm->noisecalc.samples[i][3] = radio->nrssi_lt[noise[3]];
1546         bcm->noisecalc.nr_samples++;
1547         if (bcm->noisecalc.nr_samples == 8) {
1548                 /* Calculate the Link Quality by the noise samples. */
1549                 average = 0;
1550                 for (i = 0; i < 8; i++) {
1551                         for (j = 0; j < 4; j++)
1552                                 average += bcm->noisecalc.samples[i][j];
1553                 }
1554                 average /= (8 * 4);
1555                 average *= 125;
1556                 average += 64;
1557                 average /= 128;
1558
1559                 tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x40C);
1560                 tmp = (tmp / 128) & 0x1F;
1561                 if (tmp >= 8)
1562                         average += 2;
1563                 else
1564                         average -= 25;
1565                 if (tmp == 8)
1566                         average -= 72;
1567                 else
1568                         average -= 48;
1569
1570                 bcm->stats.noise = average;
1571 drop_calculation:
1572                 bcm->noisecalc.calculation_running = 0;
1573                 return;
1574         }
1575 generate_new:
1576         bcm43xx_generate_noise_sample(bcm);
1577 }
1578
1579 static void handle_irq_ps(struct bcm43xx_private *bcm)
1580 {
1581         if (bcm->ieee->iw_mode == IW_MODE_MASTER) {
1582                 ///TODO: PS TBTT
1583         } else {
1584                 if (1/*FIXME: the last PSpoll frame was sent successfully */)
1585                         bcm43xx_power_saving_ctl_bits(bcm, -1, -1);
1586         }
1587         if (bcm->ieee->iw_mode == IW_MODE_ADHOC)
1588                 bcm->reg124_set_0x4 = 1;
1589         //FIXME else set to false?
1590 }
1591
1592 static void handle_irq_reg124(struct bcm43xx_private *bcm)
1593 {
1594         if (!bcm->reg124_set_0x4)
1595                 return;
1596         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD,
1597                         bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD)
1598                         | 0x4);
1599         //FIXME: reset reg124_set_0x4 to false?
1600 }
1601
1602 static void handle_irq_pmq(struct bcm43xx_private *bcm)
1603 {
1604         u32 tmp;
1605
1606         //TODO: AP mode.
1607
1608         while (1) {
1609                 tmp = bcm43xx_read32(bcm, BCM43xx_MMIO_PS_STATUS);
1610                 if (!(tmp & 0x00000008))
1611                         break;
1612         }
1613         /* 16bit write is odd, but correct. */
1614         bcm43xx_write16(bcm, BCM43xx_MMIO_PS_STATUS, 0x0002);
1615 }
1616
1617 static void bcm43xx_generate_beacon_template(struct bcm43xx_private *bcm,
1618                                              u16 ram_offset, u16 shm_size_offset)
1619 {
1620         u32 value;
1621         u16 size = 0;
1622
1623         /* Timestamp. */
1624         //FIXME: assumption: The chip sets the timestamp
1625         value = 0;
1626         bcm43xx_ram_write(bcm, ram_offset++, value);
1627         bcm43xx_ram_write(bcm, ram_offset++, value);
1628         size += 8;
1629
1630         /* Beacon Interval / Capability Information */
1631         value = 0x0000;//FIXME: Which interval?
1632         value |= (1 << 0) << 16; /* ESS */
1633         value |= (1 << 2) << 16; /* CF Pollable */      //FIXME?
1634         value |= (1 << 3) << 16; /* CF Poll Request */  //FIXME?
1635         if (!bcm->ieee->open_wep)
1636                 value |= (1 << 4) << 16; /* Privacy */
1637         bcm43xx_ram_write(bcm, ram_offset++, value);
1638         size += 4;
1639
1640         /* SSID */
1641         //TODO
1642
1643         /* FH Parameter Set */
1644         //TODO
1645
1646         /* DS Parameter Set */
1647         //TODO
1648
1649         /* CF Parameter Set */
1650         //TODO
1651
1652         /* TIM */
1653         //TODO
1654
1655         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, shm_size_offset, size);
1656 }
1657
1658 static void handle_irq_beacon(struct bcm43xx_private *bcm)
1659 {
1660         u32 status;
1661
1662         bcm->irq_savedstate &= ~BCM43xx_IRQ_BEACON;
1663         status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD);
1664
1665         if ((status & 0x1) && (status & 0x2)) {
1666                 /* ACK beacon IRQ. */
1667                 bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON,
1668                                 BCM43xx_IRQ_BEACON);
1669                 bcm->irq_savedstate |= BCM43xx_IRQ_BEACON;
1670                 return;
1671         }
1672         if (!(status & 0x1)) {
1673                 bcm43xx_generate_beacon_template(bcm, 0x68, 0x18);
1674                 status |= 0x1;
1675                 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD, status);
1676         }
1677         if (!(status & 0x2)) {
1678                 bcm43xx_generate_beacon_template(bcm, 0x468, 0x1A);
1679                 status |= 0x2;
1680                 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS2_BITFIELD, status);
1681         }
1682 }
1683
1684 /* Interrupt handler bottom-half */
1685 static void bcm43xx_interrupt_tasklet(struct bcm43xx_private *bcm)
1686 {
1687         u32 reason;
1688         u32 dma_reason[6];
1689         u32 merged_dma_reason = 0;
1690         int i, activity = 0;
1691         unsigned long flags;
1692
1693 #ifdef CONFIG_BCM43XX_DEBUG
1694         u32 _handled = 0x00000000;
1695 # define bcmirq_handled(irq)    do { _handled |= (irq); } while (0)
1696 #else
1697 # define bcmirq_handled(irq)    do { /* nothing */ } while (0)
1698 #endif /* CONFIG_BCM43XX_DEBUG*/
1699
1700         spin_lock_irqsave(&bcm->irq_lock, flags);
1701         reason = bcm->irq_reason;
1702         for (i = 5; i >= 0; i--) {
1703                 dma_reason[i] = bcm->dma_reason[i];
1704                 merged_dma_reason |= dma_reason[i];
1705         }
1706
1707         if (unlikely(reason & BCM43xx_IRQ_XMIT_ERROR)) {
1708                 /* TX error. We get this when Template Ram is written in wrong endianess
1709                  * in dummy_tx(). We also get this if something is wrong with the TX header
1710                  * on DMA or PIO queues.
1711                  * Maybe we get this in other error conditions, too.
1712                  */
1713                 printkl(KERN_ERR PFX "FATAL ERROR: BCM43xx_IRQ_XMIT_ERROR\n");
1714                 bcmirq_handled(BCM43xx_IRQ_XMIT_ERROR);
1715         }
1716         if (unlikely(merged_dma_reason & BCM43xx_DMAIRQ_FATALMASK)) {
1717                 printkl(KERN_ERR PFX "FATAL ERROR: Fatal DMA error: "
1718                                      "0x%08X, 0x%08X, 0x%08X, "
1719                                      "0x%08X, 0x%08X, 0x%08X\n",
1720                         dma_reason[0], dma_reason[1],
1721                         dma_reason[2], dma_reason[3],
1722                         dma_reason[4], dma_reason[5]);
1723                 bcm43xx_controller_restart(bcm, "DMA error");
1724                 mmiowb();
1725                 spin_unlock_irqrestore(&bcm->irq_lock, flags);
1726                 return;
1727         }
1728         if (unlikely(merged_dma_reason & BCM43xx_DMAIRQ_NONFATALMASK)) {
1729                 printkl(KERN_ERR PFX "DMA error: "
1730                                      "0x%08X, 0x%08X, 0x%08X, "
1731                                      "0x%08X, 0x%08X, 0x%08X\n",
1732                         dma_reason[0], dma_reason[1],
1733                         dma_reason[2], dma_reason[3],
1734                         dma_reason[4], dma_reason[5]);
1735         }
1736
1737         if (reason & BCM43xx_IRQ_PS) {
1738                 handle_irq_ps(bcm);
1739                 bcmirq_handled(BCM43xx_IRQ_PS);
1740         }
1741
1742         if (reason & BCM43xx_IRQ_REG124) {
1743                 handle_irq_reg124(bcm);
1744                 bcmirq_handled(BCM43xx_IRQ_REG124);
1745         }
1746
1747         if (reason & BCM43xx_IRQ_BEACON) {
1748                 if (bcm->ieee->iw_mode == IW_MODE_MASTER)
1749                         handle_irq_beacon(bcm);
1750                 bcmirq_handled(BCM43xx_IRQ_BEACON);
1751         }
1752
1753         if (reason & BCM43xx_IRQ_PMQ) {
1754                 handle_irq_pmq(bcm);
1755                 bcmirq_handled(BCM43xx_IRQ_PMQ);
1756         }
1757
1758         if (reason & BCM43xx_IRQ_SCAN) {
1759                 /*TODO*/
1760                 //bcmirq_handled(BCM43xx_IRQ_SCAN);
1761         }
1762
1763         if (reason & BCM43xx_IRQ_NOISE) {
1764                 handle_irq_noise(bcm);
1765                 bcmirq_handled(BCM43xx_IRQ_NOISE);
1766         }
1767
1768         /* Check the DMA reason registers for received data. */
1769         if (dma_reason[0] & BCM43xx_DMAIRQ_RX_DONE) {
1770                 if (bcm43xx_using_pio(bcm))
1771                         bcm43xx_pio_rx(bcm43xx_current_pio(bcm)->queue0);
1772                 else
1773                         bcm43xx_dma_rx(bcm43xx_current_dma(bcm)->rx_ring0);
1774                 /* We intentionally don't set "activity" to 1, here. */
1775         }
1776         assert(!(dma_reason[1] & BCM43xx_DMAIRQ_RX_DONE));
1777         assert(!(dma_reason[2] & BCM43xx_DMAIRQ_RX_DONE));
1778         if (dma_reason[3] & BCM43xx_DMAIRQ_RX_DONE) {
1779                 if (bcm43xx_using_pio(bcm))
1780                         bcm43xx_pio_rx(bcm43xx_current_pio(bcm)->queue3);
1781                 else
1782                         bcm43xx_dma_rx(bcm43xx_current_dma(bcm)->rx_ring3);
1783                 activity = 1;
1784         }
1785         assert(!(dma_reason[4] & BCM43xx_DMAIRQ_RX_DONE));
1786         assert(!(dma_reason[5] & BCM43xx_DMAIRQ_RX_DONE));
1787         bcmirq_handled(BCM43xx_IRQ_RX);
1788
1789         if (reason & BCM43xx_IRQ_XMIT_STATUS) {
1790                 handle_irq_transmit_status(bcm);
1791                 activity = 1;
1792                 //TODO: In AP mode, this also causes sending of powersave responses.
1793                 bcmirq_handled(BCM43xx_IRQ_XMIT_STATUS);
1794         }
1795
1796         /* IRQ_PIO_WORKAROUND is handled in the top-half. */
1797         bcmirq_handled(BCM43xx_IRQ_PIO_WORKAROUND);
1798 #ifdef CONFIG_BCM43XX_DEBUG
1799         if (unlikely(reason & ~_handled)) {
1800                 printkl(KERN_WARNING PFX
1801                         "Unhandled IRQ! Reason: 0x%08x,  Unhandled: 0x%08x,  "
1802                         "DMA: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
1803                         reason, (reason & ~_handled),
1804                         dma_reason[0], dma_reason[1],
1805                         dma_reason[2], dma_reason[3]);
1806         }
1807 #endif
1808 #undef bcmirq_handled
1809
1810         if (!modparam_noleds)
1811                 bcm43xx_leds_update(bcm, activity);
1812         bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate);
1813         mmiowb();
1814         spin_unlock_irqrestore(&bcm->irq_lock, flags);
1815 }
1816
1817 static void pio_irq_workaround(struct bcm43xx_private *bcm,
1818                                u16 base, int queueidx)
1819 {
1820         u16 rxctl;
1821
1822         rxctl = bcm43xx_read16(bcm, base + BCM43xx_PIO_RXCTL);
1823         if (rxctl & BCM43xx_PIO_RXCTL_DATAAVAILABLE)
1824                 bcm->dma_reason[queueidx] |= BCM43xx_DMAIRQ_RX_DONE;
1825         else
1826                 bcm->dma_reason[queueidx] &= ~BCM43xx_DMAIRQ_RX_DONE;
1827 }
1828
1829 static void bcm43xx_interrupt_ack(struct bcm43xx_private *bcm, u32 reason)
1830 {
1831         if (bcm43xx_using_pio(bcm) &&
1832             (bcm->current_core->rev < 3) &&
1833             (!(reason & BCM43xx_IRQ_PIO_WORKAROUND))) {
1834                 /* Apply a PIO specific workaround to the dma_reasons */
1835                 pio_irq_workaround(bcm, BCM43xx_MMIO_PIO1_BASE, 0);
1836                 pio_irq_workaround(bcm, BCM43xx_MMIO_PIO2_BASE, 1);
1837                 pio_irq_workaround(bcm, BCM43xx_MMIO_PIO3_BASE, 2);
1838                 pio_irq_workaround(bcm, BCM43xx_MMIO_PIO4_BASE, 3);
1839         }
1840
1841         bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, reason);
1842
1843         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA0_REASON,
1844                         bcm->dma_reason[0]);
1845         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA1_REASON,
1846                         bcm->dma_reason[1]);
1847         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA2_REASON,
1848                         bcm->dma_reason[2]);
1849         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA3_REASON,
1850                         bcm->dma_reason[3]);
1851         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA4_REASON,
1852                         bcm->dma_reason[4]);
1853         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA5_REASON,
1854                         bcm->dma_reason[5]);
1855 }
1856
1857 /* Interrupt handler top-half */
1858 static irqreturn_t bcm43xx_interrupt_handler(int irq, void *dev_id)
1859 {
1860         irqreturn_t ret = IRQ_HANDLED;
1861         struct bcm43xx_private *bcm = dev_id;
1862         u32 reason;
1863
1864         if (!bcm)
1865                 return IRQ_NONE;
1866
1867         spin_lock(&bcm->irq_lock);
1868
1869         assert(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
1870         assert(bcm->current_core->id == BCM43xx_COREID_80211);
1871
1872         reason = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON);
1873         if (reason == 0xffffffff) {
1874                 /* irq not for us (shared irq) */
1875                 ret = IRQ_NONE;
1876                 goto out;
1877         }
1878         reason &= bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_MASK);
1879         if (!reason)
1880                 goto out;
1881
1882         bcm->dma_reason[0] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA0_REASON)
1883                              & 0x0001DC00;
1884         bcm->dma_reason[1] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA1_REASON)
1885                              & 0x0000DC00;
1886         bcm->dma_reason[2] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA2_REASON)
1887                              & 0x0000DC00;
1888         bcm->dma_reason[3] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA3_REASON)
1889                              & 0x0001DC00;
1890         bcm->dma_reason[4] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA4_REASON)
1891                              & 0x0000DC00;
1892         bcm->dma_reason[5] = bcm43xx_read32(bcm, BCM43xx_MMIO_DMA5_REASON)
1893                              & 0x0000DC00;
1894
1895         bcm43xx_interrupt_ack(bcm, reason);
1896
1897         /* disable all IRQs. They are enabled again in the bottom half. */
1898         bcm->irq_savedstate = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
1899         /* save the reason code and call our bottom half. */
1900         bcm->irq_reason = reason;
1901         tasklet_schedule(&bcm->isr_tasklet);
1902
1903 out:
1904         mmiowb();
1905         spin_unlock(&bcm->irq_lock);
1906
1907         return ret;
1908 }
1909
1910 static void bcm43xx_release_firmware(struct bcm43xx_private *bcm, int force)
1911 {
1912         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1913
1914         if (bcm->firmware_norelease && !force)
1915                 return; /* Suspending or controller reset. */
1916         release_firmware(phy->ucode);
1917         phy->ucode = NULL;
1918         release_firmware(phy->pcm);
1919         phy->pcm = NULL;
1920         release_firmware(phy->initvals0);
1921         phy->initvals0 = NULL;
1922         release_firmware(phy->initvals1);
1923         phy->initvals1 = NULL;
1924 }
1925
1926 static int bcm43xx_request_firmware(struct bcm43xx_private *bcm)
1927 {
1928         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1929         u8 rev = bcm->current_core->rev;
1930         int err = 0;
1931         int nr;
1932         char buf[22 + sizeof(modparam_fwpostfix) - 1] = { 0 };
1933
1934         if (!phy->ucode) {
1935                 snprintf(buf, ARRAY_SIZE(buf), "bcm43xx_microcode%d%s.fw",
1936                          (rev >= 5 ? 5 : rev),
1937                          modparam_fwpostfix);
1938                 err = request_firmware(&phy->ucode, buf, &bcm->pci_dev->dev);
1939                 if (err) {
1940                         printk(KERN_ERR PFX
1941                                "Error: Microcode \"%s\" not available or load failed.\n",
1942                                 buf);
1943                         goto error;
1944                 }
1945         }
1946
1947         if (!phy->pcm) {
1948                 snprintf(buf, ARRAY_SIZE(buf),
1949                          "bcm43xx_pcm%d%s.fw",
1950                          (rev < 5 ? 4 : 5),
1951                          modparam_fwpostfix);
1952                 err = request_firmware(&phy->pcm, buf, &bcm->pci_dev->dev);
1953                 if (err) {
1954                         printk(KERN_ERR PFX
1955                                "Error: PCM \"%s\" not available or load failed.\n",
1956                                buf);
1957                         goto error;
1958                 }
1959         }
1960
1961         if (!phy->initvals0) {
1962                 if (rev == 2 || rev == 4) {
1963                         switch (phy->type) {
1964                         case BCM43xx_PHYTYPE_A:
1965                                 nr = 3;
1966                                 break;
1967                         case BCM43xx_PHYTYPE_B:
1968                         case BCM43xx_PHYTYPE_G:
1969                                 nr = 1;
1970                                 break;
1971                         default:
1972                                 goto err_noinitval;
1973                         }
1974
1975                 } else if (rev >= 5) {
1976                         switch (phy->type) {
1977                         case BCM43xx_PHYTYPE_A:
1978                                 nr = 7;
1979                                 break;
1980                         case BCM43xx_PHYTYPE_B:
1981                         case BCM43xx_PHYTYPE_G:
1982                                 nr = 5;
1983                                 break;
1984                         default:
1985                                 goto err_noinitval;
1986                         }
1987                 } else
1988                         goto err_noinitval;
1989                 snprintf(buf, ARRAY_SIZE(buf), "bcm43xx_initval%02d%s.fw",
1990                          nr, modparam_fwpostfix);
1991
1992                 err = request_firmware(&phy->initvals0, buf, &bcm->pci_dev->dev);
1993                 if (err) {
1994                         printk(KERN_ERR PFX
1995                                "Error: InitVals \"%s\" not available or load failed.\n",
1996                                 buf);
1997                         goto error;
1998                 }
1999                 if (phy->initvals0->size % sizeof(struct bcm43xx_initval)) {
2000                         printk(KERN_ERR PFX "InitVals fileformat error.\n");
2001                         goto error;
2002                 }
2003         }
2004
2005         if (!phy->initvals1) {
2006                 if (rev >= 5) {
2007                         u32 sbtmstatehigh;
2008
2009                         switch (phy->type) {
2010                         case BCM43xx_PHYTYPE_A:
2011                                 sbtmstatehigh = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATEHIGH);
2012                                 if (sbtmstatehigh & 0x00010000)
2013                                         nr = 9;
2014                                 else
2015                                         nr = 10;
2016                                 break;
2017                         case BCM43xx_PHYTYPE_B:
2018                         case BCM43xx_PHYTYPE_G:
2019                                         nr = 6;
2020                                 break;
2021                         default:
2022                                 goto err_noinitval;
2023                         }
2024                         snprintf(buf, ARRAY_SIZE(buf), "bcm43xx_initval%02d%s.fw",
2025                                  nr, modparam_fwpostfix);
2026
2027                         err = request_firmware(&phy->initvals1, buf, &bcm->pci_dev->dev);
2028                         if (err) {
2029                                 printk(KERN_ERR PFX
2030                                        "Error: InitVals \"%s\" not available or load failed.\n",
2031                                         buf);
2032                                 goto error;
2033                         }
2034                         if (phy->initvals1->size % sizeof(struct bcm43xx_initval)) {
2035                                 printk(KERN_ERR PFX "InitVals fileformat error.\n");
2036                                 goto error;
2037                         }
2038                 }
2039         }
2040
2041 out:
2042         return err;
2043 error:
2044         bcm43xx_release_firmware(bcm, 1);
2045         goto out;
2046 err_noinitval:
2047         printk(KERN_ERR PFX "Error: No InitVals available!\n");
2048         err = -ENOENT;
2049         goto error;
2050 }
2051
2052 static void bcm43xx_upload_microcode(struct bcm43xx_private *bcm)
2053 {
2054         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
2055         const u32 *data;
2056         unsigned int i, len;
2057
2058         /* Upload Microcode. */
2059         data = (u32 *)(phy->ucode->data);
2060         len = phy->ucode->size / sizeof(u32);
2061         bcm43xx_shm_control_word(bcm, BCM43xx_SHM_UCODE, 0x0000);
2062         for (i = 0; i < len; i++) {
2063                 bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA,
2064                                 be32_to_cpu(data[i]));
2065                 udelay(10);
2066         }
2067
2068         /* Upload PCM data. */
2069         data = (u32 *)(phy->pcm->data);
2070         len = phy->pcm->size / sizeof(u32);
2071         bcm43xx_shm_control_word(bcm, BCM43xx_SHM_PCM, 0x01ea);
2072         bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA, 0x00004000);
2073         bcm43xx_shm_control_word(bcm, BCM43xx_SHM_PCM, 0x01eb);
2074         for (i = 0; i < len; i++) {
2075                 bcm43xx_write32(bcm, BCM43xx_MMIO_SHM_DATA,
2076                                 be32_to_cpu(data[i]));
2077                 udelay(10);
2078         }
2079 }
2080
2081 static int bcm43xx_write_initvals(struct bcm43xx_private *bcm,
2082                                   const struct bcm43xx_initval *data,
2083                                   const unsigned int len)
2084 {
2085         u16 offset, size;
2086         u32 value;
2087         unsigned int i;
2088
2089         for (i = 0; i < len; i++) {
2090                 offset = be16_to_cpu(data[i].offset);
2091                 size = be16_to_cpu(data[i].size);
2092                 value = be32_to_cpu(data[i].value);
2093
2094                 if (unlikely(offset >= 0x1000))
2095                         goto err_format;
2096                 if (size == 2) {
2097                         if (unlikely(value & 0xFFFF0000))
2098                                 goto err_format;
2099                         bcm43xx_write16(bcm, offset, (u16)value);
2100                 } else if (size == 4) {
2101                         bcm43xx_write32(bcm, offset, value);
2102                 } else
2103                         goto err_format;
2104         }
2105
2106         return 0;
2107
2108 err_format:
2109         printk(KERN_ERR PFX "InitVals (bcm43xx_initvalXX.fw) file-format error. "
2110                             "Please fix your bcm43xx firmware files.\n");
2111         return -EPROTO;
2112 }
2113
2114 static int bcm43xx_upload_initvals(struct bcm43xx_private *bcm)
2115 {
2116         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
2117         int err;
2118
2119         err = bcm43xx_write_initvals(bcm, (struct bcm43xx_initval *)phy->initvals0->data,
2120                                      phy->initvals0->size / sizeof(struct bcm43xx_initval));
2121         if (err)
2122                 goto out;
2123         if (phy->initvals1) {
2124                 err = bcm43xx_write_initvals(bcm, (struct bcm43xx_initval *)phy->initvals1->data,
2125                                              phy->initvals1->size / sizeof(struct bcm43xx_initval));
2126                 if (err)
2127                         goto out;
2128         }
2129 out:
2130         return err;
2131 }
2132
2133 #ifdef CONFIG_BCM947XX
2134 static struct pci_device_id bcm43xx_47xx_ids[] = {
2135         { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4324) },
2136         { 0 }
2137 };
2138 #endif
2139
2140 static int bcm43xx_initialize_irq(struct bcm43xx_private *bcm)
2141 {
2142         int err;
2143
2144         bcm->irq = bcm->pci_dev->irq;
2145 #ifdef CONFIG_BCM947XX
2146         if (bcm->pci_dev->bus->number == 0) {
2147                 struct pci_dev *d;
2148                 struct pci_device_id *id;
2149                 for (id = bcm43xx_47xx_ids; id->vendor; id++) {
2150                         d = pci_get_device(id->vendor, id->device, NULL);
2151                         if (d != NULL) {
2152                                 bcm->irq = d->irq;
2153                                 pci_dev_put(d);
2154                                 break;
2155                         }
2156                 }
2157         }
2158 #endif
2159         err = request_irq(bcm->irq, bcm43xx_interrupt_handler,
2160                           IRQF_SHARED, KBUILD_MODNAME, bcm);
2161         if (err)
2162                 printk(KERN_ERR PFX "Cannot register IRQ%d\n", bcm->irq);
2163
2164         return err;
2165 }
2166
2167 /* Switch to the core used to write the GPIO register.
2168  * This is either the ChipCommon, or the PCI core.
2169  */
2170 static int switch_to_gpio_core(struct bcm43xx_private *bcm)
2171 {
2172         int err;
2173
2174         /* Where to find the GPIO register depends on the chipset.
2175          * If it has a ChipCommon, its register at offset 0x6c is the GPIO
2176          * control register. Otherwise the register at offset 0x6c in the
2177          * PCI core is the GPIO control register.
2178          */
2179         err = bcm43xx_switch_core(bcm, &bcm->core_chipcommon);
2180         if (err == -ENODEV) {
2181                 err = bcm43xx_switch_core(bcm, &bcm->core_pci);
2182                 if (unlikely(err == -ENODEV)) {
2183                         printk(KERN_ERR PFX "gpio error: "
2184                                "Neither ChipCommon nor PCI core available!\n");
2185                 }
2186         }
2187
2188         return err;
2189 }
2190
2191 /* Initialize the GPIOs
2192  * http://bcm-specs.sipsolutions.net/GPIO
2193  */
2194 static int bcm43xx_gpio_init(struct bcm43xx_private *bcm)
2195 {
2196         struct bcm43xx_coreinfo *old_core;
2197         int err;
2198         u32 mask, set;
2199
2200         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
2201                         bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
2202                         & 0xFFFF3FFF);
2203
2204         bcm43xx_leds_switch_all(bcm, 0);
2205         bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_MASK,
2206                         bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_MASK) | 0x000F);
2207
2208         mask = 0x0000001F;
2209         set = 0x0000000F;
2210         if (bcm->chip_id == 0x4301) {
2211                 mask |= 0x0060;
2212                 set |= 0x0060;
2213         }
2214         if (0 /* FIXME: conditional unknown */) {
2215                 bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_MASK,
2216                                 bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_MASK)
2217                                 | 0x0100);
2218                 mask |= 0x0180;
2219                 set |= 0x0180;
2220         }
2221         if (bcm->sprom.boardflags & BCM43xx_BFL_PACTRL) {
2222                 bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_MASK,
2223                                 bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_MASK)
2224                                 | 0x0200);
2225                 mask |= 0x0200;
2226                 set |= 0x0200;
2227         }
2228         if (bcm->current_core->rev >= 2)
2229                 mask  |= 0x0010; /* FIXME: This is redundant. */
2230
2231         old_core = bcm->current_core;
2232         err = switch_to_gpio_core(bcm);
2233         if (err)
2234                 goto out;
2235         bcm43xx_write32(bcm, BCM43xx_GPIO_CONTROL,
2236                         (bcm43xx_read32(bcm, BCM43xx_GPIO_CONTROL) & mask) | set);
2237         err = bcm43xx_switch_core(bcm, old_core);
2238 out:
2239         return err;
2240 }
2241
2242 /* Turn off all GPIO stuff. Call this on module unload, for example. */
2243 static int bcm43xx_gpio_cleanup(struct bcm43xx_private *bcm)
2244 {
2245         struct bcm43xx_coreinfo *old_core;
2246         int err;
2247
2248         old_core = bcm->current_core;
2249         err = switch_to_gpio_core(bcm);
2250         if (err)
2251                 return err;
2252         bcm43xx_write32(bcm, BCM43xx_GPIO_CONTROL, 0x00000000);
2253         err = bcm43xx_switch_core(bcm, old_core);
2254         assert(err == 0);
2255
2256         return 0;
2257 }
2258
2259 /* http://bcm-specs.sipsolutions.net/EnableMac */
2260 void bcm43xx_mac_enable(struct bcm43xx_private *bcm)
2261 {
2262         bcm->mac_suspended--;
2263         assert(bcm->mac_suspended >= 0);
2264         if (bcm->mac_suspended == 0) {
2265                 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
2266                                 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
2267                                 | BCM43xx_SBF_MAC_ENABLED);
2268                 bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, BCM43xx_IRQ_READY);
2269                 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD); /* dummy read */
2270                 bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */
2271                 bcm43xx_power_saving_ctl_bits(bcm, -1, -1);
2272         }
2273 }
2274
2275 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
2276 void bcm43xx_mac_suspend(struct bcm43xx_private *bcm)
2277 {
2278         int i;
2279         u32 tmp;
2280
2281         assert(bcm->mac_suspended >= 0);
2282         if (bcm->mac_suspended == 0) {
2283                 bcm43xx_power_saving_ctl_bits(bcm, -1, 1);
2284                 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
2285                                 bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD)
2286                                 & ~BCM43xx_SBF_MAC_ENABLED);
2287                 bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */
2288                 for (i = 10000; i; i--) {
2289                         tmp = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON);
2290                         if (tmp & BCM43xx_IRQ_READY)
2291                                 goto out;
2292                         udelay(1);
2293                 }
2294                 printkl(KERN_ERR PFX "MAC suspend failed\n");
2295         }
2296 out:
2297         bcm->mac_suspended++;
2298 }
2299
2300 void bcm43xx_set_iwmode(struct bcm43xx_private *bcm,
2301                         int iw_mode)
2302 {
2303         unsigned long flags;
2304         struct net_device *net_dev = bcm->net_dev;
2305         u32 status;
2306         u16 value;
2307
2308         spin_lock_irqsave(&bcm->ieee->lock, flags);
2309         bcm->ieee->iw_mode = iw_mode;
2310         spin_unlock_irqrestore(&bcm->ieee->lock, flags);
2311         if (iw_mode == IW_MODE_MONITOR)
2312                 net_dev->type = ARPHRD_IEEE80211;
2313         else
2314                 net_dev->type = ARPHRD_ETHER;
2315
2316         status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2317         /* Reset status to infrastructured mode */
2318         status &= ~(BCM43xx_SBF_MODE_AP | BCM43xx_SBF_MODE_MONITOR);
2319         status &= ~BCM43xx_SBF_MODE_PROMISC;
2320         status |= BCM43xx_SBF_MODE_NOTADHOC;
2321
2322 /* FIXME: Always enable promisc mode, until we get the MAC filters working correctly. */
2323 status |= BCM43xx_SBF_MODE_PROMISC;
2324
2325         switch (iw_mode) {
2326         case IW_MODE_MONITOR:
2327                 status |= BCM43xx_SBF_MODE_MONITOR;
2328                 status |= BCM43xx_SBF_MODE_PROMISC;
2329                 break;
2330         case IW_MODE_ADHOC:
2331                 status &= ~BCM43xx_SBF_MODE_NOTADHOC;
2332                 break;
2333         case IW_MODE_MASTER:
2334                 status |= BCM43xx_SBF_MODE_AP;
2335                 break;
2336         case IW_MODE_SECOND:
2337         case IW_MODE_REPEAT:
2338                 TODO(); /* TODO */
2339                 break;
2340         case IW_MODE_INFRA:
2341                 /* nothing to be done here... */
2342                 break;
2343         default:
2344                 dprintk(KERN_ERR PFX "Unknown mode in set_iwmode: %d\n", iw_mode);
2345         }
2346         if (net_dev->flags & IFF_PROMISC)
2347                 status |= BCM43xx_SBF_MODE_PROMISC;
2348         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
2349
2350         value = 0x0002;
2351         if (iw_mode != IW_MODE_ADHOC && iw_mode != IW_MODE_MASTER) {
2352                 if (bcm->chip_id == 0x4306 && bcm->chip_rev == 3)
2353                         value = 0x0064;
2354                 else
2355                         value = 0x0032;
2356         }
2357         bcm43xx_write16(bcm, 0x0612, value);
2358 }
2359
2360 /* This is the opposite of bcm43xx_chip_init() */
2361 static void bcm43xx_chip_cleanup(struct bcm43xx_private *bcm)
2362 {
2363         bcm43xx_radio_turn_off(bcm);
2364         if (!modparam_noleds)
2365                 bcm43xx_leds_exit(bcm);
2366         bcm43xx_gpio_cleanup(bcm);
2367         bcm43xx_release_firmware(bcm, 0);
2368 }
2369
2370 /* Initialize the chip
2371  * http://bcm-specs.sipsolutions.net/ChipInit
2372  */
2373 static int bcm43xx_chip_init(struct bcm43xx_private *bcm)
2374 {
2375         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
2376         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
2377         int err;
2378         int i, tmp;
2379         u32 value32;
2380         u16 value16;
2381
2382         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
2383                         BCM43xx_SBF_CORE_READY
2384                         | BCM43xx_SBF_400);
2385
2386         err = bcm43xx_request_firmware(bcm);
2387         if (err)
2388                 goto out;
2389         bcm43xx_upload_microcode(bcm);
2390
2391         bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, 0xFFFFFFFF);
2392         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, 0x00020402);
2393         i = 0;
2394         while (1) {
2395                 value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON);
2396                 if (value32 == BCM43xx_IRQ_READY)
2397                         break;
2398                 i++;
2399                 if (i >= BCM43xx_IRQWAIT_MAX_RETRIES) {
2400                         printk(KERN_ERR PFX "IRQ_READY timeout\n");
2401                         err = -ENODEV;
2402                         goto err_release_fw;
2403                 }
2404                 udelay(10);
2405         }
2406         bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */
2407
2408         value16 = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
2409                                      BCM43xx_UCODE_REVISION);
2410
2411         dprintk(KERN_INFO PFX "Microcode rev 0x%x, pl 0x%x "
2412                 "(20%.2i-%.2i-%.2i  %.2i:%.2i:%.2i)\n", value16,
2413                 bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
2414                                    BCM43xx_UCODE_PATCHLEVEL),
2415                 (bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
2416                                     BCM43xx_UCODE_DATE) >> 12) & 0xf,
2417                 (bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
2418                                     BCM43xx_UCODE_DATE) >> 8) & 0xf,
2419                 bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
2420                                    BCM43xx_UCODE_DATE) & 0xff,
2421                 (bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
2422                                    BCM43xx_UCODE_TIME) >> 11) & 0x1f,
2423                 (bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
2424                                    BCM43xx_UCODE_TIME) >> 5) & 0x3f,
2425                 bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
2426                                    BCM43xx_UCODE_TIME) & 0x1f);
2427
2428         if ( value16 > 0x128 ) {
2429                 printk(KERN_ERR PFX
2430                         "Firmware: no support for microcode extracted "
2431                         "from version 4.x binary drivers.\n");
2432                 err = -EOPNOTSUPP;
2433                 goto err_release_fw;
2434         }
2435
2436         err = bcm43xx_gpio_init(bcm);
2437         if (err)
2438                 goto err_release_fw;
2439
2440         err = bcm43xx_upload_initvals(bcm);
2441         if (err)
2442                 goto err_gpio_cleanup;
2443         bcm43xx_radio_turn_on(bcm);
2444
2445         bcm43xx_write16(bcm, 0x03E6, 0x0000);
2446         err = bcm43xx_phy_init(bcm);
2447         if (err)
2448                 goto err_radio_off;
2449
2450         /* Select initial Interference Mitigation. */
2451         tmp = radio->interfmode;
2452         radio->interfmode = BCM43xx_RADIO_INTERFMODE_NONE;
2453         bcm43xx_radio_set_interference_mitigation(bcm, tmp);
2454
2455         bcm43xx_phy_set_antenna_diversity(bcm);
2456         bcm43xx_radio_set_txantenna(bcm, BCM43xx_RADIO_TXANTENNA_DEFAULT);
2457         if (phy->type == BCM43xx_PHYTYPE_B) {
2458                 value16 = bcm43xx_read16(bcm, 0x005E);
2459                 value16 |= 0x0004;
2460                 bcm43xx_write16(bcm, 0x005E, value16);
2461         }
2462         bcm43xx_write32(bcm, 0x0100, 0x01000000);
2463         if (bcm->current_core->rev < 5)
2464                 bcm43xx_write32(bcm, 0x010C, 0x01000000);
2465
2466         value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2467         value32 &= ~ BCM43xx_SBF_MODE_NOTADHOC;
2468         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32);
2469         value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2470         value32 |= BCM43xx_SBF_MODE_NOTADHOC;
2471         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32);
2472
2473         value32 = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2474         value32 |= 0x100000;
2475         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value32);
2476
2477         if (bcm43xx_using_pio(bcm)) {
2478                 bcm43xx_write32(bcm, 0x0210, 0x00000100);
2479                 bcm43xx_write32(bcm, 0x0230, 0x00000100);
2480                 bcm43xx_write32(bcm, 0x0250, 0x00000100);
2481                 bcm43xx_write32(bcm, 0x0270, 0x00000100);
2482                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0034, 0x0000);
2483         }
2484
2485         /* Probe Response Timeout value */
2486         /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2487         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0074, 0x0000);
2488
2489         /* Initially set the wireless operation mode. */
2490         bcm43xx_set_iwmode(bcm, bcm->ieee->iw_mode);
2491
2492         if (bcm->current_core->rev < 3) {
2493                 bcm43xx_write16(bcm, 0x060E, 0x0000);
2494                 bcm43xx_write16(bcm, 0x0610, 0x8000);
2495                 bcm43xx_write16(bcm, 0x0604, 0x0000);
2496                 bcm43xx_write16(bcm, 0x0606, 0x0200);
2497         } else {
2498                 bcm43xx_write32(bcm, 0x0188, 0x80000000);
2499                 bcm43xx_write32(bcm, 0x018C, 0x02000000);
2500         }
2501         bcm43xx_write32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON, 0x00004000);
2502         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2503         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2504         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2505         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2506         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2507         bcm43xx_write32(bcm, BCM43xx_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2508
2509         value32 = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
2510         value32 |= 0x00100000;
2511         bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, value32);
2512
2513         bcm43xx_write16(bcm, BCM43xx_MMIO_POWERUP_DELAY, bcm43xx_pctl_powerup_delay(bcm));
2514
2515         assert(err == 0);
2516         dprintk(KERN_INFO PFX "Chip initialized\n");
2517 out:
2518         return err;
2519
2520 err_radio_off:
2521         bcm43xx_radio_turn_off(bcm);
2522 err_gpio_cleanup:
2523         bcm43xx_gpio_cleanup(bcm);
2524 err_release_fw:
2525         bcm43xx_release_firmware(bcm, 1);
2526         goto out;
2527 }
2528
2529 /* Validate chip access
2530  * http://bcm-specs.sipsolutions.net/ValidateChipAccess */
2531 static int bcm43xx_validate_chip(struct bcm43xx_private *bcm)
2532 {
2533         u32 value;
2534         u32 shm_backup;
2535
2536         shm_backup = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, 0x0000);
2537         bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, 0x0000, 0xAA5555AA);
2538         if (bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, 0x0000) != 0xAA5555AA)
2539                 goto error;
2540         bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, 0x0000, 0x55AAAA55);
2541         if (bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, 0x0000) != 0x55AAAA55)
2542                 goto error;
2543         bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED, 0x0000, shm_backup);
2544
2545         value = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
2546         if ((value | 0x80000000) != 0x80000400)
2547                 goto error;
2548
2549         value = bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON);
2550         if (value != 0x00000000)
2551                 goto error;
2552
2553         return 0;
2554 error:
2555         printk(KERN_ERR PFX "Failed to validate the chipaccess\n");
2556         return -ENODEV;
2557 }
2558
2559 static void bcm43xx_init_struct_phyinfo(struct bcm43xx_phyinfo *phy)
2560 {
2561         /* Initialize a "phyinfo" structure. The structure is already
2562          * zeroed out.
2563          * This is called on insmod time to initialize members.
2564          */
2565         phy->savedpctlreg = 0xFFFF;
2566         spin_lock_init(&phy->lock);
2567 }
2568
2569 static void bcm43xx_init_struct_radioinfo(struct bcm43xx_radioinfo *radio)
2570 {
2571         /* Initialize a "radioinfo" structure. The structure is already
2572          * zeroed out.
2573          * This is called on insmod time to initialize members.
2574          */
2575         radio->interfmode = BCM43xx_RADIO_INTERFMODE_NONE;
2576         radio->channel = 0xFF;
2577         radio->initial_channel = 0xFF;
2578 }
2579
2580 static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
2581 {
2582         int err, i;
2583         int current_core;
2584         u32 core_vendor, core_id, core_rev;
2585         u32 sb_id_hi, chip_id_32 = 0;
2586         u16 pci_device, chip_id_16;
2587         u8 core_count;
2588
2589         memset(&bcm->core_chipcommon, 0, sizeof(struct bcm43xx_coreinfo));
2590         memset(&bcm->core_pci, 0, sizeof(struct bcm43xx_coreinfo));
2591         memset(&bcm->core_80211, 0, sizeof(struct bcm43xx_coreinfo)
2592                                     * BCM43xx_MAX_80211_CORES);
2593         memset(&bcm->core_80211_ext, 0, sizeof(struct bcm43xx_coreinfo_80211)
2594                                         * BCM43xx_MAX_80211_CORES);
2595         bcm->nr_80211_available = 0;
2596         bcm->current_core = NULL;
2597         bcm->active_80211_core = NULL;
2598
2599         /* map core 0 */
2600         err = _switch_core(bcm, 0);
2601         if (err)
2602                 goto out;
2603
2604         /* fetch sb_id_hi from core information registers */
2605         sb_id_hi = bcm43xx_read32(bcm, BCM43xx_CIR_SB_ID_HI);
2606
2607         core_id = (sb_id_hi & 0x8FF0) >> 4;
2608         core_rev = (sb_id_hi & 0x7000) >> 8;
2609         core_rev |= (sb_id_hi & 0xF);
2610         core_vendor = (sb_id_hi & 0xFFFF0000) >> 16;
2611
2612         /* if present, chipcommon is always core 0; read the chipid from it */
2613         if (core_id == BCM43xx_COREID_CHIPCOMMON) {
2614                 chip_id_32 = bcm43xx_read32(bcm, 0);
2615                 chip_id_16 = chip_id_32 & 0xFFFF;
2616                 bcm->core_chipcommon.available = 1;
2617                 bcm->core_chipcommon.id = core_id;
2618                 bcm->core_chipcommon.rev = core_rev;
2619                 bcm->core_chipcommon.index = 0;
2620                 /* While we are at it, also read the capabilities. */
2621                 bcm->chipcommon_capabilities = bcm43xx_read32(bcm, BCM43xx_CHIPCOMMON_CAPABILITIES);
2622         } else {
2623                 /* without a chipCommon, use a hard coded table. */
2624                 pci_device = bcm->pci_dev->device;
2625                 if (pci_device == 0x4301)
2626                         chip_id_16 = 0x4301;
2627                 else if ((pci_device >= 0x4305) && (pci_device <= 0x4307))
2628                         chip_id_16 = 0x4307;
2629                 else if ((pci_device >= 0x4402) && (pci_device <= 0x4403))
2630                         chip_id_16 = 0x4402;
2631                 else if ((pci_device >= 0x4610) && (pci_device <= 0x4615))
2632                         chip_id_16 = 0x4610;
2633                 else if ((pci_device >= 0x4710) && (pci_device <= 0x4715))
2634                         chip_id_16 = 0x4710;
2635 #ifdef CONFIG_BCM947XX
2636                 else if ((pci_device >= 0x4320) && (pci_device <= 0x4325))
2637                         chip_id_16 = 0x4309;
2638 #endif
2639                 else {
2640                         printk(KERN_ERR PFX "Could not determine Chip ID\n");
2641                         return -ENODEV;
2642                 }
2643         }
2644
2645         /* ChipCommon with Core Rev >=4 encodes number of cores,
2646          * otherwise consult hardcoded table */
2647         if ((core_id == BCM43xx_COREID_CHIPCOMMON) && (core_rev >= 4)) {
2648                 core_count = (chip_id_32 & 0x0F000000) >> 24;
2649         } else {
2650                 switch (chip_id_16) {
2651                         case 0x4610:
2652                         case 0x4704:
2653                         case 0x4710:
2654                                 core_count = 9;
2655                                 break;
2656                         case 0x4310:
2657                                 core_count = 8;
2658                                 break;
2659                         case 0x5365:
2660                                 core_count = 7;
2661                                 break;
2662                         case 0x4306:
2663                                 core_count = 6;
2664                                 break;
2665                         case 0x4301:
2666                         case 0x4307:
2667                                 core_count = 5;
2668                                 break;
2669                         case 0x4402:
2670                                 core_count = 3;
2671                                 break;
2672                         default:
2673                                 /* SOL if we get here */
2674                                 assert(0);
2675                                 core_count = 1;
2676                 }
2677         }
2678
2679         bcm->chip_id = chip_id_16;
2680         bcm->chip_rev = (chip_id_32 & 0x000F0000) >> 16;
2681         bcm->chip_package = (chip_id_32 & 0x00F00000) >> 20;
2682
2683         dprintk(KERN_INFO PFX "Chip ID 0x%x, rev 0x%x\n",
2684                 bcm->chip_id, bcm->chip_rev);
2685         dprintk(KERN_INFO PFX "Number of cores: %d\n", core_count);
2686         if (bcm->core_chipcommon.available) {
2687                 dprintk(KERN_INFO PFX "Core 0: ID 0x%x, rev 0x%x, vendor 0x%x\n",
2688                         core_id, core_rev, core_vendor);
2689                 current_core = 1;
2690         } else
2691                 current_core = 0;
2692         for ( ; current_core < core_count; current_core++) {
2693                 struct bcm43xx_coreinfo *core;
2694                 struct bcm43xx_coreinfo_80211 *ext_80211;
2695
2696                 err = _switch_core(bcm, current_core);
2697                 if (err)
2698                         goto out;
2699                 /* Gather information */
2700                 /* fetch sb_id_hi from core information registers */
2701                 sb_id_hi = bcm43xx_read32(bcm, BCM43xx_CIR_SB_ID_HI);
2702
2703                 /* extract core_id, core_rev, core_vendor */
2704                 core_id = (sb_id_hi & 0x8FF0) >> 4;
2705                 core_rev = ((sb_id_hi & 0xF) | ((sb_id_hi & 0x7000) >> 8));
2706                 core_vendor = (sb_id_hi & 0xFFFF0000) >> 16;
2707
2708                 dprintk(KERN_INFO PFX "Core %d: ID 0x%x, rev 0x%x, vendor 0x%x\n",
2709                         current_core, core_id, core_rev, core_vendor);
2710
2711                 core = NULL;
2712                 switch (core_id) {
2713                 case BCM43xx_COREID_PCI:
2714                 case BCM43xx_COREID_PCIE:
2715                         core = &bcm->core_pci;
2716                         if (core->available) {
2717                                 printk(KERN_WARNING PFX "Multiple PCI cores found.\n");
2718                                 continue;
2719                         }
2720                         break;
2721                 case BCM43xx_COREID_80211:
2722                         for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
2723                                 core = &(bcm->core_80211[i]);
2724                                 ext_80211 = &(bcm->core_80211_ext[i]);
2725                                 if (!core->available)
2726                                         break;
2727                                 core = NULL;
2728                         }
2729                         if (!core) {
2730                                 printk(KERN_WARNING PFX "More than %d cores of type 802.11 found.\n",
2731                                        BCM43xx_MAX_80211_CORES);
2732                                 continue;
2733                         }
2734                         if (i != 0) {
2735                                 /* More than one 80211 core is only supported
2736                                  * by special chips.
2737                                  * There are chips with two 80211 cores, but with
2738                                  * dangling pins on the second core. Be careful
2739                                  * and ignore these cores here.
2740                                  */
2741                                 if (bcm->pci_dev->device != 0x4324) {
2742                                         dprintk(KERN_INFO PFX "Ignoring additional 802.11 core.\n");
2743                                         continue;
2744                                 }
2745                         }
2746                         switch (core_rev) {
2747                         case 2:
2748                         case 4:
2749                         case 5:
2750                         case 6:
2751                         case 7:
2752                         case 9:
2753                         case 10:
2754                                 break;
2755                         default:
2756                                 printk(KERN_WARNING PFX
2757                                        "Unsupported 80211 core revision %u\n",
2758                                        core_rev);
2759                         }
2760                         bcm->nr_80211_available++;
2761                         core->priv = ext_80211;
2762                         bcm43xx_init_struct_phyinfo(&ext_80211->phy);
2763                         bcm43xx_init_struct_radioinfo(&ext_80211->radio);
2764                         break;
2765                 case BCM43xx_COREID_CHIPCOMMON:
2766                         printk(KERN_WARNING PFX "Multiple CHIPCOMMON cores found.\n");
2767                         break;
2768                 }
2769                 if (core) {
2770                         core->available = 1;
2771                         core->id = core_id;
2772                         core->rev = core_rev;
2773                         core->index = current_core;
2774                 }
2775         }
2776
2777         if (!bcm->core_80211[0].available) {
2778                 printk(KERN_ERR PFX "Error: No 80211 core found!\n");
2779                 err = -ENODEV;
2780                 goto out;
2781         }
2782
2783         err = bcm43xx_switch_core(bcm, &bcm->core_80211[0]);
2784
2785         assert(err == 0);
2786 out:
2787         return err;
2788 }
2789
2790 static void bcm43xx_gen_bssid(struct bcm43xx_private *bcm)
2791 {
2792         const u8 *mac = (const u8*)(bcm->net_dev->dev_addr);
2793         u8 *bssid = bcm->ieee->bssid;
2794
2795         switch (bcm->ieee->iw_mode) {
2796         case IW_MODE_ADHOC:
2797                 random_ether_addr(bssid);
2798                 break;
2799         case IW_MODE_MASTER:
2800         case IW_MODE_INFRA:
2801         case IW_MODE_REPEAT:
2802         case IW_MODE_SECOND:
2803         case IW_MODE_MONITOR:
2804                 memcpy(bssid, mac, ETH_ALEN);
2805                 break;
2806         default:
2807                 assert(0);
2808         }
2809 }
2810
2811 static void bcm43xx_rate_memory_write(struct bcm43xx_private *bcm,
2812                                       u16 rate,
2813                                       int is_ofdm)
2814 {
2815         u16 offset;
2816
2817         if (is_ofdm) {
2818                 offset = 0x480;
2819                 offset += (bcm43xx_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2820         }
2821         else {
2822                 offset = 0x4C0;
2823                 offset += (bcm43xx_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2824         }
2825         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, offset + 0x20,
2826                             bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, offset));
2827 }
2828
2829 static void bcm43xx_rate_memory_init(struct bcm43xx_private *bcm)
2830 {
2831         switch (bcm43xx_current_phy(bcm)->type) {
2832         case BCM43xx_PHYTYPE_A:
2833         case BCM43xx_PHYTYPE_G:
2834                 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_6MB, 1);
2835                 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_12MB, 1);
2836                 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_18MB, 1);
2837                 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_24MB, 1);
2838                 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_36MB, 1);
2839                 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_48MB, 1);
2840                 bcm43xx_rate_memory_write(bcm, IEEE80211_OFDM_RATE_54MB, 1);
2841         case BCM43xx_PHYTYPE_B:
2842                 bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_1MB, 0);
2843                 bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_2MB, 0);
2844                 bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_5MB, 0);
2845                 bcm43xx_rate_memory_write(bcm, IEEE80211_CCK_RATE_11MB, 0);
2846                 break;
2847         default:
2848                 assert(0);
2849         }
2850 }
2851
2852 static void bcm43xx_wireless_core_cleanup(struct bcm43xx_private *bcm)
2853 {
2854         bcm43xx_chip_cleanup(bcm);
2855         bcm43xx_pio_free(bcm);
2856         bcm43xx_dma_free(bcm);
2857
2858         bcm->current_core->initialized = 0;
2859 }
2860
2861 /* http://bcm-specs.sipsolutions.net/80211Init */
2862 static int bcm43xx_wireless_core_init(struct bcm43xx_private *bcm,
2863                                       int active_wlcore)
2864 {
2865         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
2866         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
2867         u32 ucodeflags;
2868         int err;
2869         u32 sbimconfiglow;
2870         u8 limit;
2871
2872         if (bcm->core_pci.rev <= 5 && bcm->core_pci.id != BCM43xx_COREID_PCIE) {
2873                 sbimconfiglow = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
2874                 sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
2875                 sbimconfiglow &= ~ BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
2876                 if (bcm->bustype == BCM43xx_BUSTYPE_PCI)
2877                         sbimconfiglow |= 0x32;
2878                 else
2879                         sbimconfiglow |= 0x53;
2880                 bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, sbimconfiglow);
2881         }
2882
2883         bcm43xx_phy_calibrate(bcm);
2884         err = bcm43xx_chip_init(bcm);
2885         if (err)
2886                 goto out;
2887
2888         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0016, bcm->current_core->rev);
2889         ucodeflags = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED, BCM43xx_UCODEFLAGS_OFFSET);
2890
2891         if (0 /*FIXME: which condition has to be used here? */)
2892                 ucodeflags |= 0x00000010;
2893
2894         /* HW decryption needs to be set now */
2895         ucodeflags |= 0x40000000;
2896
2897         if (phy->type == BCM43xx_PHYTYPE_G) {
2898                 ucodeflags |= BCM43xx_UCODEFLAG_UNKBGPHY;
2899                 if (phy->rev == 1)
2900                         ucodeflags |= BCM43xx_UCODEFLAG_UNKGPHY;
2901                 if (bcm->sprom.boardflags & BCM43xx_BFL_PACTRL)
2902                         ucodeflags |= BCM43xx_UCODEFLAG_UNKPACTRL;
2903         } else if (phy->type == BCM43xx_PHYTYPE_B) {
2904                 ucodeflags |= BCM43xx_UCODEFLAG_UNKBGPHY;
2905                 if (phy->rev >= 2 && radio->version == 0x2050)
2906                         ucodeflags &= ~BCM43xx_UCODEFLAG_UNKGPHY;
2907         }
2908
2909         if (ucodeflags != bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
2910                                              BCM43xx_UCODEFLAGS_OFFSET)) {
2911                 bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
2912                                     BCM43xx_UCODEFLAGS_OFFSET, ucodeflags);
2913         }
2914
2915         /* Short/Long Retry Limit.
2916          * The retry-limit is a 4-bit counter. Enforce this to avoid overflowing
2917          * the chip-internal counter.
2918          */
2919         limit = limit_value(modparam_short_retry, 0, 0xF);
2920         bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0006, limit);
2921         limit = limit_value(modparam_long_retry, 0, 0xF);
2922         bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0007, limit);
2923
2924         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0044, 3);
2925         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0046, 2);
2926
2927         bcm43xx_rate_memory_init(bcm);
2928
2929         /* Minimum Contention Window */
2930         if (phy->type == BCM43xx_PHYTYPE_B)
2931                 bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0003, 0x0000001f);
2932         else
2933                 bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0003, 0x0000000f);
2934         /* Maximum Contention Window */
2935         bcm43xx_shm_write32(bcm, BCM43xx_SHM_WIRELESS, 0x0004, 0x000003ff);
2936
2937         bcm43xx_gen_bssid(bcm);
2938         bcm43xx_write_mac_bssid_templates(bcm);
2939
2940         if (bcm->current_core->rev >= 5)
2941                 bcm43xx_write16(bcm, 0x043C, 0x000C);
2942
2943         if (active_wlcore) {
2944                 if (bcm43xx_using_pio(bcm)) {
2945                         err = bcm43xx_pio_init(bcm);
2946                 } else {
2947                         err = bcm43xx_dma_init(bcm);
2948                         if (err == -ENOSYS)
2949                                 err = bcm43xx_pio_init(bcm);
2950                 }
2951                 if (err)
2952                         goto err_chip_cleanup;
2953         }
2954         bcm43xx_write16(bcm, 0x0612, 0x0050);
2955         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0416, 0x0050);
2956         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0414, 0x01F4);
2957
2958         if (active_wlcore) {
2959                 if (radio->initial_channel != 0xFF)
2960                         bcm43xx_radio_selectchannel(bcm, radio->initial_channel, 0);
2961         }
2962
2963         /* Don't enable MAC/IRQ here, as it will race with the IRQ handler.
2964          * We enable it later.
2965          */
2966         bcm->current_core->initialized = 1;
2967 out:
2968         return err;
2969
2970 err_chip_cleanup:
2971         bcm43xx_chip_cleanup(bcm);
2972         goto out;
2973 }
2974
2975 static int bcm43xx_chipset_attach(struct bcm43xx_private *bcm)
2976 {
2977         int err;
2978         u16 pci_status;
2979
2980         err = bcm43xx_pctl_set_crystal(bcm, 1);
2981         if (err)
2982                 goto out;
2983         bcm43xx_pci_read_config16(bcm, PCI_STATUS, &pci_status);
2984         bcm43xx_pci_write_config16(bcm, PCI_STATUS, pci_status & ~PCI_STATUS_SIG_TARGET_ABORT);
2985
2986 out:
2987         return err;
2988 }
2989
2990 static void bcm43xx_chipset_detach(struct bcm43xx_private *bcm)
2991 {
2992         bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_SLOW);
2993         bcm43xx_pctl_set_crystal(bcm, 0);
2994 }
2995
2996 static void bcm43xx_pcicore_broadcast_value(struct bcm43xx_private *bcm,
2997                                             u32 address,
2998                                             u32 data)
2999 {
3000         bcm43xx_write32(bcm, BCM43xx_PCICORE_BCAST_ADDR, address);
3001         bcm43xx_write32(bcm, BCM43xx_PCICORE_BCAST_DATA, data);
3002 }
3003
3004 static int bcm43xx_pcicore_commit_settings(struct bcm43xx_private *bcm)
3005 {
3006         int err = 0;
3007
3008         bcm->irq_savedstate = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
3009
3010         if (bcm->core_chipcommon.available) {
3011                 err = bcm43xx_switch_core(bcm, &bcm->core_chipcommon);
3012                 if (err)
3013                         goto out;
3014
3015                 bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000);
3016
3017                 /* this function is always called when a PCI core is mapped */
3018                 err = bcm43xx_switch_core(bcm, &bcm->core_pci);
3019                 if (err)
3020                         goto out;
3021         } else
3022                 bcm43xx_pcicore_broadcast_value(bcm, 0xfd8, 0x00000000);
3023
3024         bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate);
3025
3026 out:
3027         return err;
3028 }
3029
3030 static u32 bcm43xx_pcie_reg_read(struct bcm43xx_private *bcm, u32 address)
3031 {
3032         bcm43xx_write32(bcm, BCM43xx_PCIECORE_REG_ADDR, address);
3033         return bcm43xx_read32(bcm, BCM43xx_PCIECORE_REG_DATA);
3034 }
3035
3036 static void bcm43xx_pcie_reg_write(struct bcm43xx_private *bcm, u32 address,
3037                                     u32 data)
3038 {
3039         bcm43xx_write32(bcm, BCM43xx_PCIECORE_REG_ADDR, address);
3040         bcm43xx_write32(bcm, BCM43xx_PCIECORE_REG_DATA, data);
3041 }
3042
3043 static void bcm43xx_pcie_mdio_write(struct bcm43xx_private *bcm, u8 dev, u8 reg,
3044                                     u16 data)
3045 {
3046         int i;
3047
3048         bcm43xx_write32(bcm, BCM43xx_PCIECORE_MDIO_CTL, 0x0082);
3049         bcm43xx_write32(bcm, BCM43xx_PCIECORE_MDIO_DATA, BCM43xx_PCIE_MDIO_ST |
3050                         BCM43xx_PCIE_MDIO_WT | (dev << BCM43xx_PCIE_MDIO_DEV) |
3051                         (reg << BCM43xx_PCIE_MDIO_REG) | BCM43xx_PCIE_MDIO_TA |
3052                         data);
3053         udelay(10);
3054
3055         for (i = 0; i < 10; i++) {
3056                 if (bcm43xx_read32(bcm, BCM43xx_PCIECORE_MDIO_CTL) &
3057                     BCM43xx_PCIE_MDIO_TC)
3058                         break;
3059                 msleep(1);
3060         }
3061         bcm43xx_write32(bcm, BCM43xx_PCIECORE_MDIO_CTL, 0);
3062 }
3063
3064 /* Make an I/O Core usable. "core_mask" is the bitmask of the cores to enable.
3065  * To enable core 0, pass a core_mask of 1<<0
3066  */
3067 static int bcm43xx_setup_backplane_pci_connection(struct bcm43xx_private *bcm,
3068                                                   u32 core_mask)
3069 {
3070         u32 backplane_flag_nr;
3071         u32 value;
3072         struct bcm43xx_coreinfo *old_core;
3073         int err = 0;
3074
3075         value = bcm43xx_read32(bcm, BCM43xx_CIR_SBTPSFLAG);
3076         backplane_flag_nr = value & BCM43xx_BACKPLANE_FLAG_NR_MASK;
3077
3078         old_core = bcm->current_core;
3079         err = bcm43xx_switch_core(bcm, &bcm->core_pci);
3080         if (err)
3081                 goto out;
3082
3083         if (bcm->current_core->rev < 6 &&
3084                 bcm->current_core->id == BCM43xx_COREID_PCI) {
3085                 value = bcm43xx_read32(bcm, BCM43xx_CIR_SBINTVEC);
3086                 value |= (1 << backplane_flag_nr);
3087                 bcm43xx_write32(bcm, BCM43xx_CIR_SBINTVEC, value);
3088         } else {
3089                 err = bcm43xx_pci_read_config32(bcm, BCM43xx_PCICFG_ICR, &value);
3090                 if (err) {
3091                         printk(KERN_ERR PFX "Error: ICR setup failure!\n");
3092                         goto out_switch_back;
3093                 }
3094                 value |= core_mask << 8;
3095                 err = bcm43xx_pci_write_config32(bcm, BCM43xx_PCICFG_ICR, value);
3096                 if (err) {
3097                         printk(KERN_ERR PFX "Error: ICR setup failure!\n");
3098                         goto out_switch_back;
3099                 }
3100         }
3101
3102         if (bcm->current_core->id == BCM43xx_COREID_PCI) {
3103                 value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2);
3104                 value |= BCM43xx_SBTOPCI2_PREFETCH | BCM43xx_SBTOPCI2_BURST;
3105                 bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
3106
3107                 if (bcm->current_core->rev < 5) {
3108                         value = bcm43xx_read32(bcm, BCM43xx_CIR_SBIMCONFIGLOW);
3109                         value |= (2 << BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_SHIFT)
3110                                  & BCM43xx_SBIMCONFIGLOW_SERVICE_TOUT_MASK;
3111                         value |= (3 << BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_SHIFT)
3112                                  & BCM43xx_SBIMCONFIGLOW_REQUEST_TOUT_MASK;
3113                         bcm43xx_write32(bcm, BCM43xx_CIR_SBIMCONFIGLOW, value);
3114                         err = bcm43xx_pcicore_commit_settings(bcm);
3115                         assert(err == 0);
3116                 } else if (bcm->current_core->rev >= 11) {
3117                         value = bcm43xx_read32(bcm, BCM43xx_PCICORE_SBTOPCI2);
3118                         value |= BCM43xx_SBTOPCI2_MEMREAD_MULTI;
3119                         bcm43xx_write32(bcm, BCM43xx_PCICORE_SBTOPCI2, value);
3120                 }
3121         } else {
3122                 if (bcm->current_core->rev == 0 || bcm->current_core->rev == 1) {
3123                         value = bcm43xx_pcie_reg_read(bcm, BCM43xx_PCIE_TLP_WORKAROUND);
3124                         value |= 0x8;
3125                         bcm43xx_pcie_reg_write(bcm, BCM43xx_PCIE_TLP_WORKAROUND,
3126                                                value);
3127                 }
3128                 if (bcm->current_core->rev == 0) {
3129                         bcm43xx_pcie_mdio_write(bcm, BCM43xx_MDIO_SERDES_RX,
3130                                                 BCM43xx_SERDES_RXTIMER, 0x8128);
3131                         bcm43xx_pcie_mdio_write(bcm, BCM43xx_MDIO_SERDES_RX,
3132                                                 BCM43xx_SERDES_CDR, 0x0100);
3133                         bcm43xx_pcie_mdio_write(bcm, BCM43xx_MDIO_SERDES_RX,
3134                                                 BCM43xx_SERDES_CDR_BW, 0x1466);
3135                 } else if (bcm->current_core->rev == 1) {
3136                         value = bcm43xx_pcie_reg_read(bcm, BCM43xx_PCIE_DLLP_LINKCTL);
3137                         value |= 0x40;
3138                         bcm43xx_pcie_reg_write(bcm, BCM43xx_PCIE_DLLP_LINKCTL,
3139                                                value);
3140                 }
3141         }
3142 out_switch_back:
3143         err = bcm43xx_switch_core(bcm, old_core);
3144 out:
3145         return err;
3146 }
3147
3148 static void bcm43xx_periodic_every120sec(struct bcm43xx_private *bcm)
3149 {
3150         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
3151
3152         if (phy->type != BCM43xx_PHYTYPE_G || phy->rev < 2)
3153                 return;
3154
3155         bcm43xx_mac_suspend(bcm);
3156         bcm43xx_phy_lo_g_measure(bcm);
3157         bcm43xx_mac_enable(bcm);
3158 }
3159
3160 static void bcm43xx_periodic_every60sec(struct bcm43xx_private *bcm)
3161 {
3162         bcm43xx_phy_lo_mark_all_unused(bcm);
3163         if (bcm->sprom.boardflags & BCM43xx_BFL_RSSI) {
3164                 bcm43xx_mac_suspend(bcm);
3165                 bcm43xx_calc_nrssi_slope(bcm);
3166                 bcm43xx_mac_enable(bcm);
3167         }
3168 }
3169
3170 static void bcm43xx_periodic_every30sec(struct bcm43xx_private *bcm)
3171 {
3172         /* Update device statistics. */
3173         bcm43xx_calculate_link_quality(bcm);
3174 }
3175
3176 static void bcm43xx_periodic_every15sec(struct bcm43xx_private *bcm)
3177 {
3178         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
3179         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
3180
3181         if (phy->type == BCM43xx_PHYTYPE_G) {
3182                 //TODO: update_aci_moving_average
3183                 if (radio->aci_enable && radio->aci_wlan_automatic) {
3184                         bcm43xx_mac_suspend(bcm);
3185                         if (!radio->aci_enable && 1 /*TODO: not scanning? */) {
3186                                 if (0 /*TODO: bunch of conditions*/) {
3187                                         bcm43xx_radio_set_interference_mitigation(bcm,
3188                                                                                   BCM43xx_RADIO_INTERFMODE_MANUALWLAN);
3189                                 }
3190                         } else if (1/*TODO*/) {
3191                                 /*
3192                                 if ((aci_average > 1000) && !(bcm43xx_radio_aci_scan(bcm))) {
3193                                         bcm43xx_radio_set_interference_mitigation(bcm,
3194                                                                                   BCM43xx_RADIO_INTERFMODE_NONE);
3195                                 }
3196                                 */
3197                         }
3198                         bcm43xx_mac_enable(bcm);
3199                 } else if (radio->interfmode == BCM43xx_RADIO_INTERFMODE_NONWLAN &&
3200                            phy->rev == 1) {
3201                         //TODO: implement rev1 workaround
3202                 }
3203         }
3204         bcm43xx_phy_xmitpower(bcm); //FIXME: unless scanning?
3205         //TODO for APHY (temperature?)
3206 }
3207
3208 static void do_periodic_work(struct bcm43xx_private *bcm)
3209 {
3210         if (bcm->periodic_state % 8 == 0)
3211                 bcm43xx_periodic_every120sec(bcm);
3212         if (bcm->periodic_state % 4 == 0)
3213                 bcm43xx_periodic_every60sec(bcm);
3214         if (bcm->periodic_state % 2 == 0)
3215                 bcm43xx_periodic_every30sec(bcm);
3216         bcm43xx_periodic_every15sec(bcm);
3217
3218         schedule_delayed_work(&bcm->periodic_work, HZ * 15);
3219 }
3220
3221 static void bcm43xx_periodic_work_handler(struct work_struct *work)
3222 {
3223         struct bcm43xx_private *bcm =
3224                 container_of(work, struct bcm43xx_private, periodic_work.work);
3225         struct net_device *net_dev = bcm->net_dev;
3226         unsigned long flags;
3227         u32 savedirqs = 0;
3228         unsigned long orig_trans_start = 0;
3229
3230         mutex_lock(&bcm->mutex);
3231         if (unlikely(bcm->periodic_state % 4 == 0)) {
3232                 /* Periodic work will take a long time, so we want it to
3233                  * be preemtible.
3234                  */
3235
3236                 netif_tx_lock_bh(net_dev);
3237                 /* We must fake a started transmission here, as we are going to
3238                  * disable TX. If we wouldn't fake a TX, it would be possible to
3239                  * trigger the netdev watchdog, if the last real TX is already
3240                  * some time on the past (slightly less than 5secs)
3241                  */
3242                 orig_trans_start = net_dev->trans_start;
3243                 net_dev->trans_start = jiffies;
3244                 netif_stop_queue(net_dev);
3245                 netif_tx_unlock_bh(net_dev);
3246
3247                 spin_lock_irqsave(&bcm->irq_lock, flags);
3248                 bcm43xx_mac_suspend(bcm);
3249                 if (bcm43xx_using_pio(bcm))
3250                         bcm43xx_pio_freeze_txqueues(bcm);
3251                 savedirqs = bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
3252                 spin_unlock_irqrestore(&bcm->irq_lock, flags);
3253                 bcm43xx_synchronize_irq(bcm);
3254         } else {
3255                 /* Periodic work should take short time, so we want low
3256                  * locking overhead.
3257                  */
3258                 spin_lock_irqsave(&bcm->irq_lock, flags);
3259         }
3260
3261         do_periodic_work(bcm);
3262
3263         if (unlikely(bcm->periodic_state % 4 == 0)) {
3264                 spin_lock_irqsave(&bcm->irq_lock, flags);
3265                 tasklet_enable(&bcm->isr_tasklet);
3266                 bcm43xx_interrupt_enable(bcm, savedirqs);
3267                 if (bcm43xx_using_pio(bcm))
3268                         bcm43xx_pio_thaw_txqueues(bcm);
3269                 bcm43xx_mac_enable(bcm);
3270                 netif_wake_queue(bcm->net_dev);
3271                 net_dev->trans_start = orig_trans_start;
3272         }
3273         mmiowb();
3274         bcm->periodic_state++;
3275         spin_unlock_irqrestore(&bcm->irq_lock, flags);
3276         mutex_unlock(&bcm->mutex);
3277 }
3278
3279 void bcm43xx_periodic_tasks_delete(struct bcm43xx_private *bcm)
3280 {
3281         cancel_rearming_delayed_work(&bcm->periodic_work);
3282 }
3283
3284 void bcm43xx_periodic_tasks_setup(struct bcm43xx_private *bcm)
3285 {
3286         struct delayed_work *work = &bcm->periodic_work;
3287
3288         assert(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED);
3289         INIT_DELAYED_WORK(work, bcm43xx_periodic_work_handler);
3290         schedule_delayed_work(work, 0);
3291 }
3292
3293 static void bcm43xx_security_init(struct bcm43xx_private *bcm)
3294 {
3295         bcm->security_offset = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED,
3296                                                   0x0056) * 2;
3297         bcm43xx_clear_keys(bcm);
3298 }
3299
3300 static int bcm43xx_rng_read(struct hwrng *rng, u32 *data)
3301 {
3302         struct bcm43xx_private *bcm = (struct bcm43xx_private *)rng->priv;
3303         unsigned long flags;
3304
3305         spin_lock_irqsave(&(bcm)->irq_lock, flags);
3306         *data = bcm43xx_read16(bcm, BCM43xx_MMIO_RNG);
3307         spin_unlock_irqrestore(&(bcm)->irq_lock, flags);
3308
3309         return (sizeof(u16));
3310 }
3311
3312 static void bcm43xx_rng_exit(struct bcm43xx_private *bcm)
3313 {
3314         hwrng_unregister(&bcm->rng);
3315 }
3316
3317 static int bcm43xx_rng_init(struct bcm43xx_private *bcm)
3318 {
3319         int err;
3320
3321         snprintf(bcm->rng_name, ARRAY_SIZE(bcm->rng_name),
3322                  "%s_%s", KBUILD_MODNAME, bcm->net_dev->name);
3323         bcm->rng.name = bcm->rng_name;
3324         bcm->rng.data_read = bcm43xx_rng_read;
3325         bcm->rng.priv = (unsigned long)bcm;
3326         err = hwrng_register(&bcm->rng);
3327         if (err)
3328                 printk(KERN_ERR PFX "RNG init failed (%d)\n", err);
3329
3330         return err;
3331 }
3332
3333 static int bcm43xx_shutdown_all_wireless_cores(struct bcm43xx_private *bcm)
3334 {
3335         int ret = 0;
3336         int i, err;
3337         struct bcm43xx_coreinfo *core;
3338
3339         bcm43xx_set_status(bcm, BCM43xx_STAT_SHUTTINGDOWN);
3340         for (i = 0; i < bcm->nr_80211_available; i++) {
3341                 core = &(bcm->core_80211[i]);
3342                 assert(core->available);
3343                 if (!core->initialized)
3344                         continue;
3345                 err = bcm43xx_switch_core(bcm, core);
3346                 if (err) {
3347                         dprintk(KERN_ERR PFX "shutdown_all_wireless_cores "
3348                                              "switch_core failed (%d)\n", err);
3349                         ret = err;
3350                         continue;
3351                 }
3352                 bcm43xx_interrupt_disable(bcm, BCM43xx_IRQ_ALL);
3353                 bcm43xx_read32(bcm, BCM43xx_MMIO_GEN_IRQ_REASON); /* dummy read */
3354                 bcm43xx_wireless_core_cleanup(bcm);
3355                 if (core == bcm->active_80211_core)
3356                         bcm->active_80211_core = NULL;
3357         }
3358         free_irq(bcm->irq, bcm);
3359         bcm43xx_set_status(bcm, BCM43xx_STAT_UNINIT);
3360
3361         return ret;
3362 }
3363
3364 /* This is the opposite of bcm43xx_init_board() */
3365 static void bcm43xx_free_board(struct bcm43xx_private *bcm)
3366 {
3367         bcm43xx_rng_exit(bcm);
3368         bcm43xx_sysfs_unregister(bcm);
3369         bcm43xx_periodic_tasks_delete(bcm);
3370
3371         mutex_lock(&(bcm)->mutex);
3372         bcm43xx_shutdown_all_wireless_cores(bcm);
3373         bcm43xx_pctl_set_crystal(bcm, 0);
3374         mutex_unlock(&(bcm)->mutex);
3375 }
3376
3377 static void prepare_phydata_for_init(struct bcm43xx_phyinfo *phy)
3378 {
3379         phy->antenna_diversity = 0xFFFF;
3380         memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
3381         memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
3382
3383         /* Flags */
3384         phy->calibrated = 0;
3385         phy->is_locked = 0;
3386
3387         if (phy->_lo_pairs) {
3388                 memset(phy->_lo_pairs, 0,
3389                        sizeof(struct bcm43xx_lopair) * BCM43xx_LO_COUNT);
3390         }
3391         memset(phy->loopback_gain, 0, sizeof(phy->loopback_gain));
3392 }
3393
3394 static void prepare_radiodata_for_init(struct bcm43xx_private *bcm,
3395                                        struct bcm43xx_radioinfo *radio)
3396 {
3397         int i;
3398
3399         /* Set default attenuation values. */
3400         radio->baseband_atten = bcm43xx_default_baseband_attenuation(bcm);
3401         radio->radio_atten = bcm43xx_default_radio_attenuation(bcm);
3402         radio->txctl1 = bcm43xx_default_txctl1(bcm);
3403         radio->txctl2 = 0xFFFF;
3404         radio->txpwr_offset = 0;
3405
3406         /* NRSSI */
3407         radio->nrssislope = 0;
3408         for (i = 0; i < ARRAY_SIZE(radio->nrssi); i++)
3409                 radio->nrssi[i] = -1000;
3410         for (i = 0; i < ARRAY_SIZE(radio->nrssi_lt); i++)
3411                 radio->nrssi_lt[i] = i;
3412
3413         radio->lofcal = 0xFFFF;
3414         radio->initval = 0xFFFF;
3415
3416         radio->aci_enable = 0;
3417         radio->aci_wlan_automatic = 0;
3418         radio->aci_hw_rssi = 0;
3419 }
3420
3421 static void prepare_priv_for_init(struct bcm43xx_private *bcm)
3422 {
3423         int i;
3424         struct bcm43xx_coreinfo *core;
3425         struct bcm43xx_coreinfo_80211 *wlext;
3426
3427         assert(!bcm->active_80211_core);
3428
3429         bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZING);
3430
3431         /* Flags */
3432         bcm->was_initialized = 0;
3433         bcm->reg124_set_0x4 = 0;
3434
3435         /* Stats */
3436         memset(&bcm->stats, 0, sizeof(bcm->stats));
3437
3438         /* Wireless core data */
3439         for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
3440                 core = &(bcm->core_80211[i]);
3441                 wlext = core->priv;
3442
3443                 if (!core->available)
3444                         continue;
3445                 assert(wlext == &(bcm->core_80211_ext[i]));
3446
3447                 prepare_phydata_for_init(&wlext->phy);
3448                 prepare_radiodata_for_init(bcm, &wlext->radio);
3449         }
3450
3451         /* IRQ related flags */
3452         bcm->irq_reason = 0;
3453         memset(bcm->dma_reason, 0, sizeof(bcm->dma_reason));
3454         bcm->irq_savedstate = BCM43xx_IRQ_INITIAL;
3455
3456         bcm->mac_suspended = 1;
3457
3458         /* Noise calculation context */
3459         memset(&bcm->noisecalc, 0, sizeof(bcm->noisecalc));
3460
3461         /* Periodic work context */
3462         bcm->periodic_state = 0;
3463 }
3464
3465 static int wireless_core_up(struct bcm43xx_private *bcm,
3466                             int active_wlcore)
3467 {
3468         int err;
3469
3470         if (!bcm43xx_core_enabled(bcm))
3471                 bcm43xx_wireless_core_reset(bcm, 1);
3472         if (!active_wlcore)
3473                 bcm43xx_wireless_core_mark_inactive(bcm);
3474         err = bcm43xx_wireless_core_init(bcm, active_wlcore);
3475         if (err)
3476                 goto out;
3477         if (!active_wlcore)
3478                 bcm43xx_radio_turn_off(bcm);
3479 out:
3480         return err;
3481 }
3482
3483 /* Select and enable the "to be used" wireless core.
3484  * Locking: bcm->mutex must be aquired before calling this.
3485  *          bcm->irq_lock must not be aquired.
3486  */
3487 int bcm43xx_select_wireless_core(struct bcm43xx_private *bcm,
3488                                  int phytype)
3489 {
3490         int i, err;
3491         struct bcm43xx_coreinfo *active_core = NULL;
3492         struct bcm43xx_coreinfo_80211 *active_wlext = NULL;
3493         struct bcm43xx_coreinfo *core;
3494         struct bcm43xx_coreinfo_80211 *wlext;
3495         int adjust_active_sbtmstatelow = 0;
3496
3497         might_sleep();
3498
3499         if (phytype < 0) {
3500                 /* If no phytype is requested, select the first core. */
3501                 assert(bcm->core_80211[0].available);
3502                 wlext = bcm->core_80211[0].priv;
3503                 phytype = wlext->phy.type;
3504         }
3505         /* Find the requested core. */
3506         for (i = 0; i < bcm->nr_80211_available; i++) {
3507                 core = &(bcm->core_80211[i]);
3508                 wlext = core->priv;
3509                 if (wlext->phy.type == phytype) {
3510                         active_core = core;
3511                         active_wlext = wlext;
3512                         break;
3513                 }
3514         }
3515         if (!active_core)
3516                 return -ESRCH; /* No such PHYTYPE on this board. */
3517
3518         if (bcm->active_80211_core) {
3519                 /* We already selected a wl core in the past.
3520                  * So first clean up everything.
3521                  */
3522                 dprintk(KERN_INFO PFX "select_wireless_core: cleanup\n");
3523                 ieee80211softmac_stop(bcm->net_dev);
3524                 bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZED);
3525                 err = bcm43xx_disable_interrupts_sync(bcm);
3526                 assert(!err);
3527                 tasklet_enable(&bcm->isr_tasklet);
3528                 err = bcm43xx_shutdown_all_wireless_cores(bcm);
3529                 if (err)
3530                         goto error;
3531                 /* Ok, everything down, continue to re-initialize. */
3532                 bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZING);
3533         }
3534
3535         /* Reset all data structures. */
3536         prepare_priv_for_init(bcm);
3537
3538         err = bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_FAST);
3539         if (err)
3540                 goto error;
3541
3542         /* Mark all unused cores "inactive". */
3543         for (i = 0; i < bcm->nr_80211_available; i++) {
3544                 core = &(bcm->core_80211[i]);
3545                 wlext = core->priv;
3546
3547                 if (core == active_core)
3548                         continue;
3549                 err = bcm43xx_switch_core(bcm, core);
3550                 if (err) {
3551                         dprintk(KERN_ERR PFX "Could not switch to inactive "
3552                                              "802.11 core (%d)\n", err);
3553                         goto error;
3554                 }
3555                 err = wireless_core_up(bcm, 0);
3556                 if (err) {
3557                         dprintk(KERN_ERR PFX "core_up for inactive 802.11 core "
3558                                              "failed (%d)\n", err);
3559                         goto error;
3560                 }
3561                 adjust_active_sbtmstatelow = 1;
3562         }
3563
3564         /* Now initialize the active 802.11 core. */
3565         err = bcm43xx_switch_core(bcm, active_core);
3566         if (err) {
3567                 dprintk(KERN_ERR PFX "Could not switch to active "
3568                                      "802.11 core (%d)\n", err);
3569                 goto error;
3570         }
3571         if (adjust_active_sbtmstatelow &&
3572             active_wlext->phy.type == BCM43xx_PHYTYPE_G) {
3573                 u32 sbtmstatelow;
3574
3575                 sbtmstatelow = bcm43xx_read32(bcm, BCM43xx_CIR_SBTMSTATELOW);
3576                 sbtmstatelow |= 0x20000000;
3577                 bcm43xx_write32(bcm, BCM43xx_CIR_SBTMSTATELOW, sbtmstatelow);
3578         }
3579         err = wireless_core_up(bcm, 1);
3580         if (err) {
3581                 dprintk(KERN_ERR PFX "core_up for active 802.11 core "
3582                                      "failed (%d)\n", err);
3583                 goto error;
3584         }
3585         err = bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_DYNAMIC);
3586         if (err)
3587                 goto error;
3588         bcm->active_80211_core = active_core;
3589
3590         bcm43xx_macfilter_clear(bcm, BCM43xx_MACFILTER_ASSOC);
3591         bcm43xx_macfilter_set(bcm, BCM43xx_MACFILTER_SELF, (u8 *)(bcm->net_dev->dev_addr));
3592         bcm43xx_security_init(bcm);
3593         drain_txstatus_queue(bcm);
3594         ieee80211softmac_start(bcm->net_dev);
3595
3596         /* Let's go! Be careful after enabling the IRQs.
3597          * Don't switch cores, for example.
3598          */
3599         bcm43xx_mac_enable(bcm);
3600         bcm43xx_set_status(bcm, BCM43xx_STAT_INITIALIZED);
3601         err = bcm43xx_initialize_irq(bcm);
3602         if (err)
3603                 goto error;
3604         bcm43xx_interrupt_enable(bcm, bcm->irq_savedstate);
3605
3606         dprintk(KERN_INFO PFX "Selected 802.11 core (phytype %d)\n",
3607                 active_wlext->phy.type);
3608
3609         return 0;
3610
3611 error:
3612         bcm43xx_set_status(bcm, BCM43xx_STAT_UNINIT);
3613         bcm43xx_pctl_set_clock(bcm, BCM43xx_PCTL_CLK_SLOW);
3614         return err;
3615 }
3616
3617 static int bcm43xx_init_board(struct bcm43xx_private *bcm)
3618 {
3619         int err;
3620
3621         mutex_lock(&(bcm)->mutex);
3622
3623         tasklet_enable(&bcm->isr_tasklet);
3624         err = bcm43xx_pctl_set_crystal(bcm, 1);
3625         if (err)
3626                 goto err_tasklet;
3627         err = bcm43xx_pctl_init(bcm);
3628         if (err)
3629                 goto err_crystal_off;
3630         err = bcm43xx_select_wireless_core(bcm, -1);
3631         if (err)
3632                 goto err_crystal_off;
3633         err = bcm43xx_sysfs_register(bcm);
3634         if (err)
3635                 goto err_wlshutdown;
3636         err = bcm43xx_rng_init(bcm);
3637         if (err)
3638                 goto err_sysfs_unreg;
3639         bcm43xx_periodic_tasks_setup(bcm);
3640
3641         /*FIXME: This should be handled by softmac instead. */
3642         schedule_delayed_work(&bcm->softmac->associnfo.work, 0);
3643
3644 out:
3645         mutex_unlock(&(bcm)->mutex);
3646
3647         return err;
3648
3649 err_sysfs_unreg:
3650         bcm43xx_sysfs_unregister(bcm);
3651 err_wlshutdown:
3652         bcm43xx_shutdown_all_wireless_cores(bcm);
3653 err_crystal_off:
3654         bcm43xx_pctl_set_crystal(bcm, 0);
3655 err_tasklet:
3656         tasklet_disable(&bcm->isr_tasklet);
3657         goto out;
3658 }
3659
3660 static void bcm43xx_detach_board(struct bcm43xx_private *bcm)
3661 {
3662         struct pci_dev *pci_dev = bcm->pci_dev;
3663         int i;
3664
3665         bcm43xx_chipset_detach(bcm);
3666         /* Do _not_ access the chip, after it is detached. */
3667         pci_iounmap(pci_dev, bcm->mmio_addr);
3668         pci_release_regions(pci_dev);
3669         pci_disable_device(pci_dev);
3670
3671         /* Free allocated structures/fields */
3672         for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
3673                 kfree(bcm->core_80211_ext[i].phy._lo_pairs);
3674                 if (bcm->core_80211_ext[i].phy.dyn_tssi_tbl)
3675                         kfree(bcm->core_80211_ext[i].phy.tssi2dbm);
3676         }
3677 }
3678
3679 static int bcm43xx_read_phyinfo(struct bcm43xx_private *bcm)
3680 {
3681         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
3682         u16 value;
3683         u8 phy_version;
3684         u8 phy_type;
3685         u8 phy_rev;
3686         int phy_rev_ok = 1;
3687         void *p;
3688
3689         value = bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_VER);
3690
3691         phy_version = (value & 0xF000) >> 12;
3692         phy_type = (value & 0x0F00) >> 8;
3693         phy_rev = (value & 0x000F);
3694
3695         dprintk(KERN_INFO PFX "Detected PHY: Version: %x, Type %x, Revision %x\n",
3696                 phy_version, phy_type, phy_rev);
3697
3698         switch (phy_type) {
3699         case BCM43xx_PHYTYPE_A:
3700                 if (phy_rev >= 4)
3701                         phy_rev_ok = 0;
3702                 /*FIXME: We need to switch the ieee->modulation, etc.. flags,
3703                  *       if we switch 80211 cores after init is done.
3704                  *       As we do not implement on the fly switching between
3705                  *       wireless cores, I will leave this as a future task.
3706                  */
3707                 bcm->ieee->modulation = IEEE80211_OFDM_MODULATION;
3708                 bcm->ieee->mode = IEEE_A;
3709                 bcm->ieee->freq_band = IEEE80211_52GHZ_BAND |
3710                                        IEEE80211_24GHZ_BAND;
3711                 break;
3712         case BCM43xx_PHYTYPE_B:
3713                 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 && phy_rev != 7)
3714                         phy_rev_ok = 0;
3715                 bcm->ieee->modulation = IEEE80211_CCK_MODULATION;
3716                 bcm->ieee->mode = IEEE_B;
3717                 bcm->ieee->freq_band = IEEE80211_24GHZ_BAND;
3718                 break;
3719         case BCM43xx_PHYTYPE_G:
3720                 if (phy_rev > 8)
3721                         phy_rev_ok = 0;
3722                 bcm->ieee->modulation = IEEE80211_OFDM_MODULATION |
3723                                         IEEE80211_CCK_MODULATION;
3724                 bcm->ieee->mode = IEEE_G;
3725                 bcm->ieee->freq_band = IEEE80211_24GHZ_BAND;
3726                 break;
3727         default:
3728                 printk(KERN_ERR PFX "Error: Unknown PHY Type %x\n",
3729                        phy_type);
3730                 return -ENODEV;
3731         };
3732         bcm->ieee->perfect_rssi = RX_RSSI_MAX;
3733         bcm->ieee->worst_rssi = 0;
3734         if (!phy_rev_ok) {
3735                 printk(KERN_WARNING PFX "Invalid PHY Revision %x\n",
3736                        phy_rev);
3737         }
3738
3739         phy->version = phy_version;
3740         phy->type = phy_type;
3741         phy->rev = phy_rev;
3742         if ((phy_type == BCM43xx_PHYTYPE_B) || (phy_type == BCM43xx_PHYTYPE_G)) {
3743                 p = kzalloc(sizeof(struct bcm43xx_lopair) * BCM43xx_LO_COUNT,
3744                             GFP_KERNEL);
3745                 if (!p)
3746                         return -ENOMEM;
3747                 phy->_lo_pairs = p;
3748         }
3749
3750         return 0;
3751 }
3752
3753 static int bcm43xx_attach_board(struct bcm43xx_private *bcm)
3754 {
3755         struct pci_dev *pci_dev = bcm->pci_dev;
3756         struct net_device *net_dev = bcm->net_dev;
3757         int err;
3758         int i;
3759         u32 coremask;
3760
3761         err = pci_enable_device(pci_dev);
3762         if (err) {
3763                 printk(KERN_ERR PFX "pci_enable_device() failed\n");
3764                 goto out;
3765         }
3766         err = pci_request_regions(pci_dev, KBUILD_MODNAME);
3767         if (err) {
3768                 printk(KERN_ERR PFX "pci_request_regions() failed\n");
3769                 goto err_pci_disable;
3770         }
3771         /* enable PCI bus-mastering */
3772         pci_set_master(pci_dev);
3773         bcm->mmio_addr = pci_iomap(pci_dev, 0, ~0UL);
3774         if (!bcm->mmio_addr) {
3775                 printk(KERN_ERR PFX "pci_iomap() failed\n");
3776                 err = -EIO;
3777                 goto err_pci_release;
3778         }
3779         net_dev->base_addr = (unsigned long)bcm->mmio_addr;
3780
3781         bcm43xx_pci_read_config16(bcm, PCI_SUBSYSTEM_VENDOR_ID,
3782                                   &bcm->board_vendor);
3783         bcm43xx_pci_read_config16(bcm, PCI_SUBSYSTEM_ID,
3784                                   &bcm->board_type);
3785         bcm43xx_pci_read_config16(bcm, PCI_REVISION_ID,
3786                                   &bcm->board_revision);
3787
3788         err = bcm43xx_chipset_attach(bcm);
3789         if (err)
3790                 goto err_iounmap;
3791         err = bcm43xx_pctl_init(bcm);
3792         if (err)
3793                 goto err_chipset_detach;
3794         err = bcm43xx_probe_cores(bcm);
3795         if (err)
3796                 goto err_chipset_detach;
3797
3798         /* Attach all IO cores to the backplane. */
3799         coremask = 0;
3800         for (i = 0; i < bcm->nr_80211_available; i++)
3801                 coremask |= (1 << bcm->core_80211[i].index);
3802         //FIXME: Also attach some non80211 cores?
3803         err = bcm43xx_setup_backplane_pci_connection(bcm, coremask);
3804         if (err) {
3805                 printk(KERN_ERR PFX "Backplane->PCI connection failed!\n");
3806                 goto err_chipset_detach;
3807         }
3808
3809         err = bcm43xx_sprom_extract(bcm);
3810         if (err)
3811                 goto err_chipset_detach;
3812         err = bcm43xx_leds_init(bcm);
3813         if (err)
3814                 goto err_chipset_detach;
3815
3816         for (i = 0; i < bcm->nr_80211_available; i++) {
3817                 err = bcm43xx_switch_core(bcm, &bcm->core_80211[i]);
3818                 assert(err != -ENODEV);
3819                 if (err)
3820                         goto err_80211_unwind;
3821
3822                 /* Enable the selected wireless core.
3823                  * Connect PHY only on the first core.
3824                  */
3825                 bcm43xx_wireless_core_reset(bcm, (i == 0));
3826
3827                 err = bcm43xx_read_phyinfo(bcm);
3828                 if (err && (i == 0))
3829                         goto err_80211_unwind;
3830
3831                 err = bcm43xx_read_radioinfo(bcm);
3832                 if (err && (i == 0))
3833                         goto err_80211_unwind;
3834
3835                 err = bcm43xx_validate_chip(bcm);
3836                 if (err && (i == 0))
3837                         goto err_80211_unwind;
3838
3839                 bcm43xx_radio_turn_off(bcm);
3840                 err = bcm43xx_phy_init_tssi2dbm_table(bcm);
3841                 if (err)
3842                         goto err_80211_unwind;
3843                 bcm43xx_wireless_core_disable(bcm);
3844         }
3845         err = bcm43xx_geo_init(bcm);
3846         if (err)
3847                 goto err_80211_unwind;
3848         bcm43xx_pctl_set_crystal(bcm, 0);
3849
3850         /* Set the MAC address in the networking subsystem */
3851         if (is_valid_ether_addr(bcm->sprom.et1macaddr))
3852                 memcpy(bcm->net_dev->dev_addr, bcm->sprom.et1macaddr, 6);
3853         else
3854                 memcpy(bcm->net_dev->dev_addr, bcm->sprom.il0macaddr, 6);
3855
3856         snprintf(bcm->nick, IW_ESSID_MAX_SIZE,
3857                  "Broadcom %04X", bcm->chip_id);
3858
3859         assert(err == 0);
3860 out:
3861         return err;
3862
3863 err_80211_unwind:
3864         for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
3865                 kfree(bcm->core_80211_ext[i].phy._lo_pairs);
3866                 if (bcm->core_80211_ext[i].phy.dyn_tssi_tbl)
3867                         kfree(bcm->core_80211_ext[i].phy.tssi2dbm);
3868         }
3869 err_chipset_detach:
3870         bcm43xx_chipset_detach(bcm);
3871 err_iounmap:
3872         pci_iounmap(pci_dev, bcm->mmio_addr);
3873 err_pci_release:
3874         pci_release_regions(pci_dev);
3875 err_pci_disable:
3876         pci_disable_device(pci_dev);
3877         goto out;
3878 }
3879
3880 /* Do the Hardware IO operations to send the txb */
3881 static inline int bcm43xx_tx(struct bcm43xx_private *bcm,
3882                              struct ieee80211_txb *txb)
3883 {
3884         int err = -ENODEV;
3885
3886         if (bcm43xx_using_pio(bcm))
3887                 err = bcm43xx_pio_tx(bcm, txb);
3888         else
3889                 err = bcm43xx_dma_tx(bcm, txb);
3890         bcm->net_dev->trans_start = jiffies;
3891
3892         return err;
3893 }
3894
3895 static void bcm43xx_ieee80211_set_chan(struct net_device *net_dev,
3896                                        u8 channel)
3897 {
3898         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
3899         struct bcm43xx_radioinfo *radio;
3900         unsigned long flags;
3901
3902         mutex_lock(&bcm->mutex);
3903         spin_lock_irqsave(&bcm->irq_lock, flags);
3904         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
3905                 bcm43xx_mac_suspend(bcm);
3906                 bcm43xx_radio_selectchannel(bcm, channel, 0);
3907                 bcm43xx_mac_enable(bcm);
3908         } else {
3909                 radio = bcm43xx_current_radio(bcm);
3910                 radio->initial_channel = channel;
3911         }
3912         spin_unlock_irqrestore(&bcm->irq_lock, flags);
3913         mutex_unlock(&bcm->mutex);
3914 }
3915
3916 /* set_security() callback in struct ieee80211_device */
3917 static void bcm43xx_ieee80211_set_security(struct net_device *net_dev,
3918                                            struct ieee80211_security *sec)
3919 {
3920         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
3921         struct ieee80211_security *secinfo = &bcm->ieee->sec;
3922         unsigned long flags;
3923         int keyidx;
3924
3925         dprintk(KERN_INFO PFX "set security called");
3926
3927         mutex_lock(&bcm->mutex);
3928         spin_lock_irqsave(&bcm->irq_lock, flags);
3929
3930         for (keyidx = 0; keyidx<WEP_KEYS; keyidx++)
3931                 if (sec->flags & (1<<keyidx)) {
3932                         secinfo->encode_alg[keyidx] = sec->encode_alg[keyidx];
3933                         secinfo->key_sizes[keyidx] = sec->key_sizes[keyidx];
3934                         memcpy(secinfo->keys[keyidx], sec->keys[keyidx], SCM_KEY_LEN);
3935                 }
3936
3937         if (sec->flags & SEC_ACTIVE_KEY) {
3938                 secinfo->active_key = sec->active_key;
3939                 dprintk(", .active_key = %d", sec->active_key);
3940         }
3941         if (sec->flags & SEC_UNICAST_GROUP) {
3942                 secinfo->unicast_uses_group = sec->unicast_uses_group;
3943                 dprintk(", .unicast_uses_group = %d", sec->unicast_uses_group);
3944         }
3945         if (sec->flags & SEC_LEVEL) {
3946                 secinfo->level = sec->level;
3947                 dprintk(", .level = %d", sec->level);
3948         }
3949         if (sec->flags & SEC_ENABLED) {
3950                 secinfo->enabled = sec->enabled;
3951                 dprintk(", .enabled = %d", sec->enabled);
3952         }
3953         if (sec->flags & SEC_ENCRYPT) {
3954                 secinfo->encrypt = sec->encrypt;
3955                 dprintk(", .encrypt = %d", sec->encrypt);
3956         }
3957         if (sec->flags & SEC_AUTH_MODE) {
3958                 secinfo->auth_mode = sec->auth_mode;
3959                 dprintk(", .auth_mode = %d", sec->auth_mode);
3960         }
3961         dprintk("\n");
3962         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED &&
3963             !bcm->ieee->host_encrypt) {
3964                 if (secinfo->enabled) {
3965                         /* upload WEP keys to hardware */
3966                         char null_address[6] = { 0 };
3967                         u8 algorithm = 0;
3968                         for (keyidx = 0; keyidx<WEP_KEYS; keyidx++) {
3969                                 if (!(sec->flags & (1<<keyidx)))
3970                                         continue;
3971                                 switch (sec->encode_alg[keyidx]) {
3972                                         case SEC_ALG_NONE: algorithm = BCM43xx_SEC_ALGO_NONE; break;
3973                                         case SEC_ALG_WEP:
3974                                                 algorithm = BCM43xx_SEC_ALGO_WEP;
3975                                                 if (secinfo->key_sizes[keyidx] == 13)
3976                                                         algorithm = BCM43xx_SEC_ALGO_WEP104;
3977                                                 break;
3978                                         case SEC_ALG_TKIP:
3979                                                 FIXME();
3980                                                 algorithm = BCM43xx_SEC_ALGO_TKIP;
3981                                                 break;
3982                                         case SEC_ALG_CCMP:
3983                                                 FIXME();
3984                                                 algorithm = BCM43xx_SEC_ALGO_AES;
3985                                                 break;
3986                                         default:
3987                                                 assert(0);
3988                                                 break;
3989                                 }
3990                                 bcm43xx_key_write(bcm, keyidx, algorithm, sec->keys[keyidx], secinfo->key_sizes[keyidx], &null_address[0]);
3991                                 bcm->key[keyidx].enabled = 1;
3992                                 bcm->key[keyidx].algorithm = algorithm;
3993                         }
3994                 } else
3995                                 bcm43xx_clear_keys(bcm);
3996         }
3997         spin_unlock_irqrestore(&bcm->irq_lock, flags);
3998         mutex_unlock(&bcm->mutex);
3999 }
4000
4001 /* hard_start_xmit() callback in struct ieee80211_device */
4002 static int bcm43xx_ieee80211_hard_start_xmit(struct ieee80211_txb *txb,
4003                                              struct net_device *net_dev,
4004                                              int pri)
4005 {
4006         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4007         int err = -ENODEV;
4008         unsigned long flags;
4009
4010         spin_lock_irqsave(&bcm->irq_lock, flags);
4011         if (likely(bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED))
4012                 err = bcm43xx_tx(bcm, txb);
4013         spin_unlock_irqrestore(&bcm->irq_lock, flags);
4014
4015         if (unlikely(err))
4016                 return NETDEV_TX_BUSY;
4017         return NETDEV_TX_OK;
4018 }
4019
4020 static void bcm43xx_net_tx_timeout(struct net_device *net_dev)
4021 {
4022         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4023         unsigned long flags;
4024
4025         spin_lock_irqsave(&bcm->irq_lock, flags);
4026         bcm43xx_controller_restart(bcm, "TX timeout");
4027         spin_unlock_irqrestore(&bcm->irq_lock, flags);
4028 }
4029
4030 #ifdef CONFIG_NET_POLL_CONTROLLER
4031 static void bcm43xx_net_poll_controller(struct net_device *net_dev)
4032 {
4033         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4034         unsigned long flags;
4035
4036         local_irq_save(flags);
4037         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED)
4038                 bcm43xx_interrupt_handler(bcm->irq, bcm);
4039         local_irq_restore(flags);
4040 }
4041 #endif /* CONFIG_NET_POLL_CONTROLLER */
4042
4043 static int bcm43xx_net_open(struct net_device *net_dev)
4044 {
4045         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4046
4047         return bcm43xx_init_board(bcm);
4048 }
4049
4050 static int bcm43xx_net_stop(struct net_device *net_dev)
4051 {
4052         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4053         int err;
4054
4055         ieee80211softmac_stop(net_dev);
4056         err = bcm43xx_disable_interrupts_sync(bcm);
4057         assert(!err);
4058         bcm43xx_free_board(bcm);
4059         flush_scheduled_work();
4060
4061         return 0;
4062 }
4063
4064 static int bcm43xx_init_private(struct bcm43xx_private *bcm,
4065                                 struct net_device *net_dev,
4066                                 struct pci_dev *pci_dev)
4067 {
4068         bcm43xx_set_status(bcm, BCM43xx_STAT_UNINIT);
4069         bcm->ieee = netdev_priv(net_dev);
4070         bcm->softmac = ieee80211_priv(net_dev);
4071         bcm->softmac->set_channel = bcm43xx_ieee80211_set_chan;
4072
4073         bcm->irq_savedstate = BCM43xx_IRQ_INITIAL;
4074         bcm->mac_suspended = 1;
4075         bcm->pci_dev = pci_dev;
4076         bcm->net_dev = net_dev;
4077         bcm->bad_frames_preempt = modparam_bad_frames_preempt;
4078         spin_lock_init(&bcm->irq_lock);
4079         spin_lock_init(&bcm->leds_lock);
4080         mutex_init(&bcm->mutex);
4081         tasklet_init(&bcm->isr_tasklet,
4082                      (void (*)(unsigned long))bcm43xx_interrupt_tasklet,
4083                      (unsigned long)bcm);
4084         tasklet_disable_nosync(&bcm->isr_tasklet);
4085         if (modparam_pio)
4086                 bcm->__using_pio = 1;
4087         bcm->rts_threshold = BCM43xx_DEFAULT_RTS_THRESHOLD;
4088
4089         /* default to sw encryption for now */
4090         bcm->ieee->host_build_iv = 0;
4091         bcm->ieee->host_encrypt = 1;
4092         bcm->ieee->host_decrypt = 1;
4093
4094         bcm->ieee->iw_mode = BCM43xx_INITIAL_IWMODE;
4095         bcm->ieee->tx_headroom = sizeof(struct bcm43xx_txhdr);
4096         bcm->ieee->set_security = bcm43xx_ieee80211_set_security;
4097         bcm->ieee->hard_start_xmit = bcm43xx_ieee80211_hard_start_xmit;
4098
4099         return 0;
4100 }
4101
4102 static int __devinit bcm43xx_init_one(struct pci_dev *pdev,
4103                                       const struct pci_device_id *ent)
4104 {
4105         struct net_device *net_dev;
4106         struct bcm43xx_private *bcm;
4107         int err;
4108
4109 #ifdef CONFIG_BCM947XX
4110         if ((pdev->bus->number == 0) && (pdev->device != 0x0800))
4111                 return -ENODEV;
4112 #endif
4113
4114 #ifdef DEBUG_SINGLE_DEVICE_ONLY
4115         if (strcmp(pci_name(pdev), DEBUG_SINGLE_DEVICE_ONLY))
4116                 return -ENODEV;
4117 #endif
4118
4119         net_dev = alloc_ieee80211softmac(sizeof(*bcm));
4120         if (!net_dev) {
4121                 printk(KERN_ERR PFX
4122                        "could not allocate ieee80211 device %s\n",
4123                        pci_name(pdev));
4124                 err = -ENOMEM;
4125                 goto out;
4126         }
4127         /* initialize the net_device struct */
4128         SET_MODULE_OWNER(net_dev);
4129         SET_NETDEV_DEV(net_dev, &pdev->dev);
4130
4131         net_dev->open = bcm43xx_net_open;
4132         net_dev->stop = bcm43xx_net_stop;
4133         net_dev->tx_timeout = bcm43xx_net_tx_timeout;
4134 #ifdef CONFIG_NET_POLL_CONTROLLER
4135         net_dev->poll_controller = bcm43xx_net_poll_controller;
4136 #endif
4137         net_dev->wireless_handlers = &bcm43xx_wx_handlers_def;
4138         net_dev->irq = pdev->irq;
4139         SET_ETHTOOL_OPS(net_dev, &bcm43xx_ethtool_ops);
4140
4141         /* initialize the bcm43xx_private struct */
4142         bcm = bcm43xx_priv(net_dev);
4143         memset(bcm, 0, sizeof(*bcm));
4144         err = bcm43xx_init_private(bcm, net_dev, pdev);
4145         if (err)
4146                 goto err_free_netdev;
4147
4148         pci_set_drvdata(pdev, net_dev);
4149
4150         err = bcm43xx_attach_board(bcm);
4151         if (err)
4152                 goto err_free_netdev;
4153
4154         err = register_netdev(net_dev);
4155         if (err) {
4156                 printk(KERN_ERR PFX "Cannot register net device, "
4157                        "aborting.\n");
4158                 err = -ENOMEM;
4159                 goto err_detach_board;
4160         }
4161
4162         bcm43xx_debugfs_add_device(bcm);
4163
4164         assert(err == 0);
4165 out:
4166         return err;
4167
4168 err_detach_board:
4169         bcm43xx_detach_board(bcm);
4170 err_free_netdev:
4171         free_ieee80211softmac(net_dev);
4172         goto out;
4173 }
4174
4175 static void __devexit bcm43xx_remove_one(struct pci_dev *pdev)
4176 {
4177         struct net_device *net_dev = pci_get_drvdata(pdev);
4178         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4179
4180         bcm43xx_debugfs_remove_device(bcm);
4181         unregister_netdev(net_dev);
4182         bcm43xx_detach_board(bcm);
4183         free_ieee80211softmac(net_dev);
4184 }
4185
4186 /* Hard-reset the chip. Do not call this directly.
4187  * Use bcm43xx_controller_restart()
4188  */
4189 static void bcm43xx_chip_reset(struct work_struct *work)
4190 {
4191         struct bcm43xx_private *bcm =
4192                 container_of(work, struct bcm43xx_private, restart_work);
4193         struct bcm43xx_phyinfo *phy;
4194         int err = -ENODEV;
4195
4196         mutex_lock(&(bcm)->mutex);
4197         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
4198                 bcm43xx_periodic_tasks_delete(bcm);
4199                 phy = bcm43xx_current_phy(bcm);
4200                 err = bcm43xx_select_wireless_core(bcm, phy->type);
4201                 if (!err)
4202                         bcm43xx_periodic_tasks_setup(bcm);
4203         }
4204         mutex_unlock(&(bcm)->mutex);
4205
4206         printk(KERN_ERR PFX "Controller restart%s\n",
4207                (err == 0) ? "ed" : " failed");
4208 }
4209
4210 /* Hard-reset the chip.
4211  * This can be called from interrupt or process context.
4212  * bcm->irq_lock must be locked.
4213  */
4214 void bcm43xx_controller_restart(struct bcm43xx_private *bcm, const char *reason)
4215 {
4216         if (bcm43xx_status(bcm) != BCM43xx_STAT_INITIALIZED)
4217                 return;
4218         printk(KERN_ERR PFX "Controller RESET (%s) ...\n", reason);
4219         INIT_WORK(&bcm->restart_work, bcm43xx_chip_reset);
4220         schedule_work(&bcm->restart_work);
4221 }
4222
4223 #ifdef CONFIG_PM
4224
4225 static int bcm43xx_suspend(struct pci_dev *pdev, pm_message_t state)
4226 {
4227         struct net_device *net_dev = pci_get_drvdata(pdev);
4228         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4229         int err;
4230
4231         dprintk(KERN_INFO PFX "Suspending...\n");
4232
4233         netif_device_detach(net_dev);
4234         bcm->was_initialized = 0;
4235         if (bcm43xx_status(bcm) == BCM43xx_STAT_INITIALIZED) {
4236                 bcm->was_initialized = 1;
4237                 ieee80211softmac_stop(net_dev);
4238                 err = bcm43xx_disable_interrupts_sync(bcm);
4239                 if (unlikely(err)) {
4240                         dprintk(KERN_ERR PFX "Suspend failed.\n");
4241                         return -EAGAIN;
4242                 }
4243                 bcm->firmware_norelease = 1;
4244                 bcm43xx_free_board(bcm);
4245                 bcm->firmware_norelease = 0;
4246         }
4247         bcm43xx_chipset_detach(bcm);
4248
4249         pci_save_state(pdev);
4250         pci_disable_device(pdev);
4251         pci_set_power_state(pdev, pci_choose_state(pdev, state));
4252
4253         dprintk(KERN_INFO PFX "Device suspended.\n");
4254
4255         return 0;
4256 }
4257
4258 static int bcm43xx_resume(struct pci_dev *pdev)
4259 {
4260         struct net_device *net_dev = pci_get_drvdata(pdev);
4261         struct bcm43xx_private *bcm = bcm43xx_priv(net_dev);
4262         int err = 0;
4263
4264         dprintk(KERN_INFO PFX "Resuming...\n");
4265
4266         pci_set_power_state(pdev, 0);
4267         err = pci_enable_device(pdev);
4268         if (err) {
4269                 printk(KERN_ERR PFX "Failure with pci_enable_device!\n");
4270                 return err;
4271         }
4272         pci_restore_state(pdev);
4273
4274         bcm43xx_chipset_attach(bcm);
4275         if (bcm->was_initialized)
4276                 err = bcm43xx_init_board(bcm);
4277         if (err) {
4278                 printk(KERN_ERR PFX "Resume failed!\n");
4279                 return err;
4280         }
4281         netif_device_attach(net_dev);
4282
4283         dprintk(KERN_INFO PFX "Device resumed.\n");
4284
4285         return 0;
4286 }
4287
4288 #endif                          /* CONFIG_PM */
4289
4290 static struct pci_driver bcm43xx_pci_driver = {
4291         .name = KBUILD_MODNAME,
4292         .id_table = bcm43xx_pci_tbl,
4293         .probe = bcm43xx_init_one,
4294         .remove = __devexit_p(bcm43xx_remove_one),
4295 #ifdef CONFIG_PM
4296         .suspend = bcm43xx_suspend,
4297         .resume = bcm43xx_resume,
4298 #endif                          /* CONFIG_PM */
4299 };
4300
4301 static int __init bcm43xx_init(void)
4302 {
4303         printk(KERN_INFO KBUILD_MODNAME " driver\n");
4304         bcm43xx_debugfs_init();
4305         return pci_register_driver(&bcm43xx_pci_driver);
4306 }
4307
4308 static void __exit bcm43xx_exit(void)
4309 {
4310         pci_unregister_driver(&bcm43xx_pci_driver);
4311         bcm43xx_debugfs_exit();
4312 }
4313
4314 module_init(bcm43xx_init)
4315 module_exit(bcm43xx_exit)