drivers/net/wireless/b43/main.c

   1 /*
   2
   3   Broadcom B43 wireless driver
   4
   5   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
   6   Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
   7   Copyright (c) 2005-2009 Michael Buesch <m@bues.ch>
   8   Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
   9   Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
  10   Copyright (c) 2010-2011 Rafał Miłecki <zajec5@gmail.com>
  11
  12   SDIO support
  13   Copyright (c) 2009 Albert Herranz <albert_herranz@yahoo.es>
  14
  15   Some parts of the code in this file are derived from the ipw2200
  16   driver  Copyright(c) 2003 - 2004 Intel Corporation.
  17
  18   This program is free software; you can redistribute it and/or modify
  19   it under the terms of the GNU General Public License as published by
  20   the Free Software Foundation; either version 2 of the License, or
  21   (at your option) any later version.
  22
  23   This program is distributed in the hope that it will be useful,
  24   but WITHOUT ANY WARRANTY; without even the implied warranty of
  25   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26   GNU General Public License for more details.
  27
  28   You should have received a copy of the GNU General Public License
  29   along with this program; see the file COPYING.  If not, write to
  30   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  31   Boston, MA 02110-1301, USA.
  32
  33 */
  34
  35 #include <linux/delay.h>
  36 #include <linux/init.h>
  37 #include <linux/module.h>
  38 #include <linux/if_arp.h>
  39 #include <linux/etherdevice.h>
  40 #include <linux/firmware.h>
  41 #include <linux/workqueue.h>
  42 #include <linux/skbuff.h>
  43 #include <linux/io.h>
  44 #include <linux/dma-mapping.h>
  45 #include <linux/slab.h>
  46 #include <asm/unaligned.h>
  47
  48 #include "b43.h"
  49 #include "main.h"
  50 #include "debugfs.h"
  51 #include "phy_common.h"
  52 #include "phy_g.h"
  53 #include "phy_n.h"
  54 #include "dma.h"
  55 #include "pio.h"
  56 #include "sysfs.h"
  57 #include "xmit.h"
  58 #include "lo.h"
  59 #include "pcmcia.h"
  60 #include "sdio.h"
  61 #include <linux/mmc/sdio_func.h>
  62
  63 MODULE_DESCRIPTION("Broadcom B43 wireless driver");
  64 MODULE_AUTHOR("Martin Langer");
  65 MODULE_AUTHOR("Stefano Brivio");
  66 MODULE_AUTHOR("Michael Buesch");
  67 MODULE_AUTHOR("Gábor Stefanik");
  68 MODULE_AUTHOR("Rafał Miłecki");
  69 MODULE_LICENSE("GPL");
  70
  71 MODULE_FIRMWARE("b43/ucode11.fw");
  72 MODULE_FIRMWARE("b43/ucode13.fw");
  73 MODULE_FIRMWARE("b43/ucode14.fw");
  74 MODULE_FIRMWARE("b43/ucode15.fw");
  75 MODULE_FIRMWARE("b43/ucode16_mimo.fw");
  76 MODULE_FIRMWARE("b43/ucode5.fw");
  77 MODULE_FIRMWARE("b43/ucode9.fw");
  78
  79 static int modparam_bad_frames_preempt;
  80 module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
  81 MODULE_PARM_DESC(bad_frames_preempt,
  82                  "enable(1) / disable(0) Bad Frames Preemption");
  83
  84 static char modparam_fwpostfix[16];
  85 module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
  86 MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load.");
  87
  88 static int modparam_hwpctl;
  89 module_param_named(hwpctl, modparam_hwpctl, int, 0444);
  90 MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)");
  91
  92 static int modparam_nohwcrypt;
  93 module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
  94 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
  95
  96 static int modparam_hwtkip;
  97 module_param_named(hwtkip, modparam_hwtkip, int, 0444);
  98 MODULE_PARM_DESC(hwtkip, "Enable hardware tkip.");
  99
 100 static int modparam_qos = 1;
 101 module_param_named(qos, modparam_qos, int, 0444);
 102 MODULE_PARM_DESC(qos, "Enable QOS support (default on)");
 103
 104 static int modparam_btcoex = 1;
 105 module_param_named(btcoex, modparam_btcoex, int, 0444);
 106 MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistence (default on)");
 107
 108 int b43_modparam_verbose = B43_VERBOSITY_DEFAULT;
 109 module_param_named(verbose, b43_modparam_verbose, int, 0644);
 110 MODULE_PARM_DESC(verbose, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug");
 111
 112 static int b43_modparam_pio = 0;
 113 module_param_named(pio, b43_modparam_pio, int, 0644);
 114 MODULE_PARM_DESC(pio, "Use PIO accesses by default: 0=DMA, 1=PIO");
 115
 116 #ifdef CONFIG_B43_BCMA
 117 static const struct bcma_device_id b43_bcma_tbl[] = {
 118         BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x11, BCMA_ANY_CLASS),
 119         BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x17, BCMA_ANY_CLASS),
 120         BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x18, BCMA_ANY_CLASS),
 121         BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x1D, BCMA_ANY_CLASS),
 122         BCMA_CORETABLE_END
 123 };
 124 MODULE_DEVICE_TABLE(bcma, b43_bcma_tbl);
 125 #endif
 126
 127 #ifdef CONFIG_B43_SSB
 128 static const struct ssb_device_id b43_ssb_tbl[] = {
 129         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
 130         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
 131         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7),
 132         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9),
 133         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
 134         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
 135         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 12),
 136         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
 137         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15),
 138         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16),
 139         SSB_DEVTABLE_END
 140 };
 141 MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
 142 #endif
 143
 144 /* Channel and ratetables are shared for all devices.
 145  * They can't be const, because ieee80211 puts some precalculated
 146  * data in there. This data is the same for all devices, so we don't
 147  * get concurrency issues */
 148 #define RATETAB_ENT(_rateid, _flags) \
 149         {                                                               \
 150                 .bitrate        = B43_RATE_TO_BASE100KBPS(_rateid),     \
 151                 .hw_value       = (_rateid),                            \
 152                 .flags          = (_flags),                             \
 153         }
 154
 155 /*
 156  * NOTE: When changing this, sync with xmit.c's
 157  *       b43_plcp_get_bitrate_idx_* functions!
 158  */
 159 static struct ieee80211_rate __b43_ratetable[] = {
 160         RATETAB_ENT(B43_CCK_RATE_1MB, 0),
 161         RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
 162         RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
 163         RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
 164         RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
 165         RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
 166         RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
 167         RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
 168         RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
 169         RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
 170         RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
 171         RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
 172 };
 173
 174 #define b43_a_ratetable         (__b43_ratetable + 4)
 175 #define b43_a_ratetable_size    8
 176 #define b43_b_ratetable         (__b43_ratetable + 0)
 177 #define b43_b_ratetable_size    4
 178 #define b43_g_ratetable         (__b43_ratetable + 0)
 179 #define b43_g_ratetable_size    12
 180
 181 #define CHAN4G(_channel, _freq, _flags) {                       \
 182         .band                   = IEEE80211_BAND_2GHZ,          \
 183         .center_freq            = (_freq),                      \
 184         .hw_value               = (_channel),                   \
 185         .flags                  = (_flags),                     \
 186         .max_antenna_gain       = 0,                            \
 187         .max_power              = 30,                           \
 188 }
 189 static struct ieee80211_channel b43_2ghz_chantable[] = {
 190         CHAN4G(1, 2412, 0),
 191         CHAN4G(2, 2417, 0),
 192         CHAN4G(3, 2422, 0),
 193         CHAN4G(4, 2427, 0),
 194         CHAN4G(5, 2432, 0),
 195         CHAN4G(6, 2437, 0),
 196         CHAN4G(7, 2442, 0),
 197         CHAN4G(8, 2447, 0),
 198         CHAN4G(9, 2452, 0),
 199         CHAN4G(10, 2457, 0),
 200         CHAN4G(11, 2462, 0),
 201         CHAN4G(12, 2467, 0),
 202         CHAN4G(13, 2472, 0),
 203         CHAN4G(14, 2484, 0),
 204 };
 205 #undef CHAN4G
 206
 207 #define CHAN5G(_channel, _flags) {                              \
 208         .band                   = IEEE80211_BAND_5GHZ,          \
 209         .center_freq            = 5000 + (5 * (_channel)),      \
 210         .hw_value               = (_channel),                   \
 211         .flags                  = (_flags),                     \
 212         .max_antenna_gain       = 0,                            \
 213         .max_power              = 30,                           \
 214 }
 215 static struct ieee80211_channel b43_5ghz_nphy_chantable[] = {
 216         CHAN5G(32, 0),          CHAN5G(34, 0),
 217         CHAN5G(36, 0),          CHAN5G(38, 0),
 218         CHAN5G(40, 0),          CHAN5G(42, 0),
 219         CHAN5G(44, 0),          CHAN5G(46, 0),
 220         CHAN5G(48, 0),          CHAN5G(50, 0),
 221         CHAN5G(52, 0),          CHAN5G(54, 0),
 222         CHAN5G(56, 0),          CHAN5G(58, 0),
 223         CHAN5G(60, 0),          CHAN5G(62, 0),
 224         CHAN5G(64, 0),          CHAN5G(66, 0),
 225         CHAN5G(68, 0),          CHAN5G(70, 0),
 226         CHAN5G(72, 0),          CHAN5G(74, 0),
 227         CHAN5G(76, 0),          CHAN5G(78, 0),
 228         CHAN5G(80, 0),          CHAN5G(82, 0),
 229         CHAN5G(84, 0),          CHAN5G(86, 0),
 230         CHAN5G(88, 0),          CHAN5G(90, 0),
 231         CHAN5G(92, 0),          CHAN5G(94, 0),
 232         CHAN5G(96, 0),          CHAN5G(98, 0),
 233         CHAN5G(100, 0),         CHAN5G(102, 0),
 234         CHAN5G(104, 0),         CHAN5G(106, 0),
 235         CHAN5G(108, 0),         CHAN5G(110, 0),
 236         CHAN5G(112, 0),         CHAN5G(114, 0),
 237         CHAN5G(116, 0),         CHAN5G(118, 0),
 238         CHAN5G(120, 0),         CHAN5G(122, 0),
 239         CHAN5G(124, 0),         CHAN5G(126, 0),
 240         CHAN5G(128, 0),         CHAN5G(130, 0),
 241         CHAN5G(132, 0),         CHAN5G(134, 0),
 242         CHAN5G(136, 0),         CHAN5G(138, 0),
 243         CHAN5G(140, 0),         CHAN5G(142, 0),
 244         CHAN5G(144, 0),         CHAN5G(145, 0),
 245         CHAN5G(146, 0),         CHAN5G(147, 0),
 246         CHAN5G(148, 0),         CHAN5G(149, 0),
 247         CHAN5G(150, 0),         CHAN5G(151, 0),
 248         CHAN5G(152, 0),         CHAN5G(153, 0),
 249         CHAN5G(154, 0),         CHAN5G(155, 0),
 250         CHAN5G(156, 0),         CHAN5G(157, 0),
 251         CHAN5G(158, 0),         CHAN5G(159, 0),
 252         CHAN5G(160, 0),         CHAN5G(161, 0),
 253         CHAN5G(162, 0),         CHAN5G(163, 0),
 254         CHAN5G(164, 0),         CHAN5G(165, 0),
 255         CHAN5G(166, 0),         CHAN5G(168, 0),
 256         CHAN5G(170, 0),         CHAN5G(172, 0),
 257         CHAN5G(174, 0),         CHAN5G(176, 0),
 258         CHAN5G(178, 0),         CHAN5G(180, 0),
 259         CHAN5G(182, 0),         CHAN5G(184, 0),
 260         CHAN5G(186, 0),         CHAN5G(188, 0),
 261         CHAN5G(190, 0),         CHAN5G(192, 0),
 262         CHAN5G(194, 0),         CHAN5G(196, 0),
 263         CHAN5G(198, 0),         CHAN5G(200, 0),
 264         CHAN5G(202, 0),         CHAN5G(204, 0),
 265         CHAN5G(206, 0),         CHAN5G(208, 0),
 266         CHAN5G(210, 0),         CHAN5G(212, 0),
 267         CHAN5G(214, 0),         CHAN5G(216, 0),
 268         CHAN5G(218, 0),         CHAN5G(220, 0),
 269         CHAN5G(222, 0),         CHAN5G(224, 0),
 270         CHAN5G(226, 0),         CHAN5G(228, 0),
 271 };
 272
 273 static struct ieee80211_channel b43_5ghz_aphy_chantable[] = {
 274         CHAN5G(34, 0),          CHAN5G(36, 0),
 275         CHAN5G(38, 0),          CHAN5G(40, 0),
 276         CHAN5G(42, 0),          CHAN5G(44, 0),
 277         CHAN5G(46, 0),          CHAN5G(48, 0),
 278         CHAN5G(52, 0),          CHAN5G(56, 0),
 279         CHAN5G(60, 0),          CHAN5G(64, 0),
 280         CHAN5G(100, 0),         CHAN5G(104, 0),
 281         CHAN5G(108, 0),         CHAN5G(112, 0),
 282         CHAN5G(116, 0),         CHAN5G(120, 0),
 283         CHAN5G(124, 0),         CHAN5G(128, 0),
 284         CHAN5G(132, 0),         CHAN5G(136, 0),
 285         CHAN5G(140, 0),         CHAN5G(149, 0),
 286         CHAN5G(153, 0),         CHAN5G(157, 0),
 287         CHAN5G(161, 0),         CHAN5G(165, 0),
 288         CHAN5G(184, 0),         CHAN5G(188, 0),
 289         CHAN5G(192, 0),         CHAN5G(196, 0),
 290         CHAN5G(200, 0),         CHAN5G(204, 0),
 291         CHAN5G(208, 0),         CHAN5G(212, 0),
 292         CHAN5G(216, 0),
 293 };
 294 #undef CHAN5G
 295
 296 static struct ieee80211_supported_band b43_band_5GHz_nphy = {
 297         .band           = IEEE80211_BAND_5GHZ,
 298         .channels       = b43_5ghz_nphy_chantable,
 299         .n_channels     = ARRAY_SIZE(b43_5ghz_nphy_chantable),
 300         .bitrates       = b43_a_ratetable,
 301         .n_bitrates     = b43_a_ratetable_size,
 302 };
 303
 304 static struct ieee80211_supported_band b43_band_5GHz_aphy = {
 305         .band           = IEEE80211_BAND_5GHZ,
 306         .channels       = b43_5ghz_aphy_chantable,
 307         .n_channels     = ARRAY_SIZE(b43_5ghz_aphy_chantable),
 308         .bitrates       = b43_a_ratetable,
 309         .n_bitrates     = b43_a_ratetable_size,
 310 };
 311
 312 static struct ieee80211_supported_band b43_band_2GHz = {
 313         .band           = IEEE80211_BAND_2GHZ,
 314         .channels       = b43_2ghz_chantable,
 315         .n_channels     = ARRAY_SIZE(b43_2ghz_chantable),
 316         .bitrates       = b43_g_ratetable,
 317         .n_bitrates     = b43_g_ratetable_size,
 318 };
 319
 320 static void b43_wireless_core_exit(struct b43_wldev *dev);
 321 static int b43_wireless_core_init(struct b43_wldev *dev);
 322 static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev);
 323 static int b43_wireless_core_start(struct b43_wldev *dev);
 324 static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
 325                                     struct ieee80211_vif *vif,
 326                                     struct ieee80211_bss_conf *conf,
 327                                     u32 changed);
 328
 329 static int b43_ratelimit(struct b43_wl *wl)
 330 {
 331         if (!wl || !wl->current_dev)
 332                 return 1;
 333         if (b43_status(wl->current_dev) < B43_STAT_STARTED)
 334                 return 1;
 335         /* We are up and running.
 336          * Ratelimit the messages to avoid DoS over the net. */
 337         return net_ratelimit();
 338 }
 339
 340 void b43info(struct b43_wl *wl, const char *fmt, ...)
 341 {
 342         struct va_format vaf;
 343         va_list args;
 344
 345         if (b43_modparam_verbose < B43_VERBOSITY_INFO)
 346                 return;
 347         if (!b43_ratelimit(wl))
 348                 return;
 349
 350         va_start(args, fmt);
 351
 352         vaf.fmt = fmt;
 353         vaf.va = &args;
 354
 355         printk(KERN_INFO "b43-%s: %pV",
 356                (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
 357
 358         va_end(args);
 359 }
 360
 361 void b43err(struct b43_wl *wl, const char *fmt, ...)
 362 {
 363         struct va_format vaf;
 364         va_list args;
 365
 366         if (b43_modparam_verbose < B43_VERBOSITY_ERROR)
 367                 return;
 368         if (!b43_ratelimit(wl))
 369                 return;
 370
 371         va_start(args, fmt);
 372
 373         vaf.fmt = fmt;
 374         vaf.va = &args;
 375
 376         printk(KERN_ERR "b43-%s ERROR: %pV",
 377                (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
 378
 379         va_end(args);
 380 }
 381
 382 void b43warn(struct b43_wl *wl, const char *fmt, ...)
 383 {
 384         struct va_format vaf;
 385         va_list args;
 386
 387         if (b43_modparam_verbose < B43_VERBOSITY_WARN)
 388                 return;
 389         if (!b43_ratelimit(wl))
 390                 return;
 391
 392         va_start(args, fmt);
 393
 394         vaf.fmt = fmt;
 395         vaf.va = &args;
 396
 397         printk(KERN_WARNING "b43-%s warning: %pV",
 398                (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
 399
 400         va_end(args);
 401 }
 402
 403 void b43dbg(struct b43_wl *wl, const char *fmt, ...)
 404 {
 405         struct va_format vaf;
 406         va_list args;
 407
 408         if (b43_modparam_verbose < B43_VERBOSITY_DEBUG)
 409                 return;
 410
 411         va_start(args, fmt);
 412
 413         vaf.fmt = fmt;
 414         vaf.va = &args;
 415
 416         printk(KERN_DEBUG "b43-%s debug: %pV",
 417                (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
 418
 419         va_end(args);
 420 }
 421
 422 static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val)
 423 {
 424         u32 macctl;
 425
 426         B43_WARN_ON(offset % 4 != 0);
 427
 428         macctl = b43_read32(dev, B43_MMIO_MACCTL);
 429         if (macctl & B43_MACCTL_BE)
 430                 val = swab32(val);
 431
 432         b43_write32(dev, B43_MMIO_RAM_CONTROL, offset);
 433         mmiowb();
 434         b43_write32(dev, B43_MMIO_RAM_DATA, val);
 435 }
 436
 437 static inline void b43_shm_control_word(struct b43_wldev *dev,
 438                                         u16 routing, u16 offset)
 439 {
 440         u32 control;
 441
 442         /* "offset" is the WORD offset. */
 443         control = routing;
 444         control <<= 16;
 445         control |= offset;
 446         b43_write32(dev, B43_MMIO_SHM_CONTROL, control);
 447 }
 448
 449 u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
 450 {
 451         u32 ret;
 452
 453         if (routing == B43_SHM_SHARED) {
 454                 B43_WARN_ON(offset & 0x0001);
 455                 if (offset & 0x0003) {
 456                         /* Unaligned access */
 457                         b43_shm_control_word(dev, routing, offset >> 2);
 458                         ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
 459                         b43_shm_control_word(dev, routing, (offset >> 2) + 1);
 460                         ret |= ((u32)b43_read16(dev, B43_MMIO_SHM_DATA)) << 16;
 461
 462                         goto out;
 463                 }
 464                 offset >>= 2;
 465         }
 466         b43_shm_control_word(dev, routing, offset);
 467         ret = b43_read32(dev, B43_MMIO_SHM_DATA);
 468 out:
 469         return ret;
 470 }
 471
 472 u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset)
 473 {
 474         u16 ret;
 475
 476         if (routing == B43_SHM_SHARED) {
 477                 B43_WARN_ON(offset & 0x0001);
 478                 if (offset & 0x0003) {
 479                         /* Unaligned access */
 480                         b43_shm_control_word(dev, routing, offset >> 2);
 481                         ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
 482
 483                         goto out;
 484                 }
 485                 offset >>= 2;
 486         }
 487         b43_shm_control_word(dev, routing, offset);
 488         ret = b43_read16(dev, B43_MMIO_SHM_DATA);
 489 out:
 490         return ret;
 491 }
 492
 493 void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
 494 {
 495         if (routing == B43_SHM_SHARED) {
 496                 B43_WARN_ON(offset & 0x0001);
 497                 if (offset & 0x0003) {
 498                         /* Unaligned access */
 499                         b43_shm_control_word(dev, routing, offset >> 2);
 500                         b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
 501                                     value & 0xFFFF);
 502                         b43_shm_control_word(dev, routing, (offset >> 2) + 1);
 503                         b43_write16(dev, B43_MMIO_SHM_DATA,
 504                                     (value >> 16) & 0xFFFF);
 505                         return;
 506                 }
 507                 offset >>= 2;
 508         }
 509         b43_shm_control_word(dev, routing, offset);
 510         b43_write32(dev, B43_MMIO_SHM_DATA, value);
 511 }
 512
 513 void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
 514 {
 515         if (routing == B43_SHM_SHARED) {
 516                 B43_WARN_ON(offset & 0x0001);
 517                 if (offset & 0x0003) {
 518                         /* Unaligned access */
 519                         b43_shm_control_word(dev, routing, offset >> 2);
 520                         b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
 521                         return;
 522                 }
 523                 offset >>= 2;
 524         }
 525         b43_shm_control_word(dev, routing, offset);
 526         b43_write16(dev, B43_MMIO_SHM_DATA, value);
 527 }
 528
 529 /* Read HostFlags */
 530 u64 b43_hf_read(struct b43_wldev *dev)
 531 {
 532         u64 ret;
 533
 534         ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
 535         ret <<= 16;
 536         ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
 537         ret <<= 16;
 538         ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
 539
 540         return ret;
 541 }
 542
 543 /* Write HostFlags */
 544 void b43_hf_write(struct b43_wldev *dev, u64 value)
 545 {
 546         u16 lo, mi, hi;
 547
 548         lo = (value & 0x00000000FFFFULL);
 549         mi = (value & 0x0000FFFF0000ULL) >> 16;
 550         hi = (value & 0xFFFF00000000ULL) >> 32;
 551         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
 552         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
 553         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
 554 }
 555
 556 /* Read the firmware capabilities bitmask (Opensource firmware only) */
 557 static u16 b43_fwcapa_read(struct b43_wldev *dev)
 558 {
 559         B43_WARN_ON(!dev->fw.opensource);
 560         return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA);
 561 }
 562
 563 void b43_tsf_read(struct b43_wldev *dev, u64 *tsf)
 564 {
 565         u32 low, high;
 566
 567         B43_WARN_ON(dev->dev->core_rev < 3);
 568
 569         /* The hardware guarantees us an atomic read, if we
 570          * read the low register first. */
 571         low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW);
 572         high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
 573
 574         *tsf = high;
 575         *tsf <<= 32;
 576         *tsf |= low;
 577 }
 578
 579 static void b43_time_lock(struct b43_wldev *dev)
 580 {
 581         u32 macctl;
 582
 583         macctl = b43_read32(dev, B43_MMIO_MACCTL);
 584         macctl |= B43_MACCTL_TBTTHOLD;
 585         b43_write32(dev, B43_MMIO_MACCTL, macctl);
 586         /* Commit the write */
 587         b43_read32(dev, B43_MMIO_MACCTL);
 588 }
 589
 590 static void b43_time_unlock(struct b43_wldev *dev)
 591 {
 592         u32 macctl;
 593
 594         macctl = b43_read32(dev, B43_MMIO_MACCTL);
 595         macctl &= ~B43_MACCTL_TBTTHOLD;
 596         b43_write32(dev, B43_MMIO_MACCTL, macctl);
 597         /* Commit the write */
 598         b43_read32(dev, B43_MMIO_MACCTL);
 599 }
 600
 601 static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf)
 602 {
 603         u32 low, high;
 604
 605         B43_WARN_ON(dev->dev->core_rev < 3);
 606
 607         low = tsf;
 608         high = (tsf >> 32);
 609         /* The hardware guarantees us an atomic write, if we
 610          * write the low register first. */
 611         b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low);
 612         mmiowb();
 613         b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high);
 614         mmiowb();
 615 }
 616
 617 void b43_tsf_write(struct b43_wldev *dev, u64 tsf)
 618 {
 619         b43_time_lock(dev);
 620         b43_tsf_write_locked(dev, tsf);
 621         b43_time_unlock(dev);
 622 }
 623
 624 static
 625 void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 *mac)
 626 {
 627         static const u8 zero_addr[ETH_ALEN] = { 0 };
 628         u16 data;
 629
 630         if (!mac)
 631                 mac = zero_addr;
 632
 633         offset |= 0x0020;
 634         b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset);
 635
 636         data = mac[0];
 637         data |= mac[1] << 8;
 638         b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
 639         data = mac[2];
 640         data |= mac[3] << 8;
 641         b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
 642         data = mac[4];
 643         data |= mac[5] << 8;
 644         b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
 645 }
 646
 647 static void b43_write_mac_bssid_templates(struct b43_wldev *dev)
 648 {
 649         const u8 *mac;
 650         const u8 *bssid;
 651         u8 mac_bssid[ETH_ALEN * 2];
 652         int i;
 653         u32 tmp;
 654
 655         bssid = dev->wl->bssid;
 656         mac = dev->wl->mac_addr;
 657
 658         b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid);
 659
 660         memcpy(mac_bssid, mac, ETH_ALEN);
 661         memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
 662
 663         /* Write our MAC address and BSSID to template ram */
 664         for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
 665                 tmp = (u32) (mac_bssid[i + 0]);
 666                 tmp |= (u32) (mac_bssid[i + 1]) << 8;
 667                 tmp |= (u32) (mac_bssid[i + 2]) << 16;
 668                 tmp |= (u32) (mac_bssid[i + 3]) << 24;
 669                 b43_ram_write(dev, 0x20 + i, tmp);
 670         }
 671 }
 672
 673 static void b43_upload_card_macaddress(struct b43_wldev *dev)
 674 {
 675         b43_write_mac_bssid_templates(dev);
 676         b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr);
 677 }
 678
 679 static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
 680 {
 681         /* slot_time is in usec. */
 682         /* This test used to exit for all but a G PHY. */
 683         if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ)
 684                 return;
 685         b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time);
 686         /* Shared memory location 0x0010 is the slot time and should be
 687          * set to slot_time; however, this register is initially 0 and changing
 688          * the value adversely affects the transmit rate for BCM4311
 689          * devices. Until this behavior is unterstood, delete this step
 690          *
 691          * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
 692          */
 693 }
 694
 695 static void b43_short_slot_timing_enable(struct b43_wldev *dev)
 696 {
 697         b43_set_slot_time(dev, 9);
 698 }
 699
 700 static void b43_short_slot_timing_disable(struct b43_wldev *dev)
 701 {
 702         b43_set_slot_time(dev, 20);
 703 }
 704
 705 /* DummyTransmission function, as documented on
 706  * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission
 707  */
 708 void b43_dummy_transmission(struct b43_wldev *dev, bool ofdm, bool pa_on)
 709 {
 710         struct b43_phy *phy = &dev->phy;
 711         unsigned int i, max_loop;
 712         u16 value;
 713         u32 buffer[5] = {
 714                 0x00000000,
 715                 0x00D40000,
 716                 0x00000000,
 717                 0x01000000,
 718                 0x00000000,
 719         };
 720
 721         if (ofdm) {
 722                 max_loop = 0x1E;
 723                 buffer[0] = 0x000201CC;
 724         } else {
 725                 max_loop = 0xFA;
 726                 buffer[0] = 0x000B846E;
 727         }
 728
 729         for (i = 0; i < 5; i++)
 730                 b43_ram_write(dev, i * 4, buffer[i]);
 731
 732         b43_write16(dev, B43_MMIO_XMTSEL, 0x0000);
 733
 734         if (dev->dev->core_rev < 11)
 735                 b43_write16(dev, B43_MMIO_WEPCTL, 0x0000);
 736         else
 737                 b43_write16(dev, B43_MMIO_WEPCTL, 0x0100);
 738
 739         value = (ofdm ? 0x41 : 0x40);
 740         b43_write16(dev, B43_MMIO_TXE0_PHYCTL, value);
 741         if (phy->type == B43_PHYTYPE_N || phy->type == B43_PHYTYPE_LP ||
 742             phy->type == B43_PHYTYPE_LCN)
 743                 b43_write16(dev, B43_MMIO_TXE0_PHYCTL1, 0x1A02);
 744
 745         b43_write16(dev, B43_MMIO_TXE0_WM_0, 0x0000);
 746         b43_write16(dev, B43_MMIO_TXE0_WM_1, 0x0000);
 747
 748         b43_write16(dev, B43_MMIO_XMTTPLATETXPTR, 0x0000);
 749         b43_write16(dev, B43_MMIO_XMTTXCNT, 0x0014);
 750         b43_write16(dev, B43_MMIO_XMTSEL, 0x0826);
 751         b43_write16(dev, B43_MMIO_TXE0_CTL, 0x0000);
 752
 753         if (!pa_on && phy->type == B43_PHYTYPE_N)
 754                 ; /*b43_nphy_pa_override(dev, false) */
 755
 756         switch (phy->type) {
 757         case B43_PHYTYPE_N:
 758         case B43_PHYTYPE_LCN:
 759                 b43_write16(dev, B43_MMIO_TXE0_AUX, 0x00D0);
 760                 break;
 761         case B43_PHYTYPE_LP:
 762                 b43_write16(dev, B43_MMIO_TXE0_AUX, 0x0050);
 763                 break;
 764         default:
 765                 b43_write16(dev, B43_MMIO_TXE0_AUX, 0x0030);
 766         }
 767         b43_read16(dev, B43_MMIO_TXE0_AUX);
 768
 769         if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
 770                 b43_radio_write16(dev, 0x0051, 0x0017);
 771         for (i = 0x00; i < max_loop; i++) {
 772                 value = b43_read16(dev, B43_MMIO_TXE0_STATUS);
 773                 if (value & 0x0080)
 774                         break;
 775                 udelay(10);
 776         }
 777         for (i = 0x00; i < 0x0A; i++) {
 778                 value = b43_read16(dev, B43_MMIO_TXE0_STATUS);
 779                 if (value & 0x0400)
 780                         break;
 781                 udelay(10);
 782         }
 783         for (i = 0x00; i < 0x19; i++) {
 784                 value = b43_read16(dev, B43_MMIO_IFSSTAT);
 785                 if (!(value & 0x0100))
 786                         break;
 787                 udelay(10);
 788         }
 789         if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
 790                 b43_radio_write16(dev, 0x0051, 0x0037);
 791 }
 792
 793 static void key_write(struct b43_wldev *dev,
 794                       u8 index, u8 algorithm, const u8 *key)
 795 {
 796         unsigned int i;
 797         u32 offset;
 798         u16 value;
 799         u16 kidx;
 800
 801         /* Key index/algo block */
 802         kidx = b43_kidx_to_fw(dev, index);
 803         value = ((kidx << 4) | algorithm);
 804         b43_shm_write16(dev, B43_SHM_SHARED,
 805                         B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value);
 806
 807         /* Write the key to the Key Table Pointer offset */
 808         offset = dev->ktp + (index * B43_SEC_KEYSIZE);
 809         for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
 810                 value = key[i];
 811                 value |= (u16) (key[i + 1]) << 8;
 812                 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value);
 813         }
 814 }
 815
 816 static void keymac_write(struct b43_wldev *dev, u8 index, const u8 *addr)
 817 {
 818         u32 addrtmp[2] = { 0, 0, };
 819         u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
 820
 821         if (b43_new_kidx_api(dev))
 822                 pairwise_keys_start = B43_NR_GROUP_KEYS;
 823
 824         B43_WARN_ON(index < pairwise_keys_start);
 825         /* We have four default TX keys and possibly four default RX keys.
 826          * Physical mac 0 is mapped to physical key 4 or 8, depending
 827          * on the firmware version.
 828          * So we must adjust the index here.
 829          */
 830         index -= pairwise_keys_start;
 831         B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS);
 832
 833         if (addr) {
 834                 addrtmp[0] = addr[0];
 835                 addrtmp[0] |= ((u32) (addr[1]) << 8);
 836                 addrtmp[0] |= ((u32) (addr[2]) << 16);
 837                 addrtmp[0] |= ((u32) (addr[3]) << 24);
 838                 addrtmp[1] = addr[4];
 839                 addrtmp[1] |= ((u32) (addr[5]) << 8);
 840         }
 841
 842         /* Receive match transmitter address (RCMTA) mechanism */
 843         b43_shm_write32(dev, B43_SHM_RCMTA,
 844                         (index * 2) + 0, addrtmp[0]);
 845         b43_shm_write16(dev, B43_SHM_RCMTA,
 846                         (index * 2) + 1, addrtmp[1]);
 847 }
 848
 849 /* The ucode will use phase1 key with TEK key to decrypt rx packets.
 850  * When a packet is received, the iv32 is checked.
 851  * - if it doesn't the packet is returned without modification (and software
 852  *   decryption can be done). That's what happen when iv16 wrap.
 853  * - if it does, the rc4 key is computed, and decryption is tried.
 854  *   Either it will success and B43_RX_MAC_DEC is returned,
 855  *   either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned
 856  *   and the packet is not usable (it got modified by the ucode).
 857  * So in order to never have B43_RX_MAC_DECERR, we should provide
 858  * a iv32 and phase1key that match. Because we drop packets in case of
 859  * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all
 860  * packets will be lost without higher layer knowing (ie no resync possible
 861  * until next wrap).
 862  *
 863  * NOTE : this should support 50 key like RCMTA because
 864  * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50
 865  */
 866 static void rx_tkip_phase1_write(struct b43_wldev *dev, u8 index, u32 iv32,
 867                 u16 *phase1key)
 868 {
 869         unsigned int i;
 870         u32 offset;
 871         u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
 872
 873         if (!modparam_hwtkip)
 874                 return;
 875
 876         if (b43_new_kidx_api(dev))
 877                 pairwise_keys_start = B43_NR_GROUP_KEYS;
 878
 879         B43_WARN_ON(index < pairwise_keys_start);
 880         /* We have four default TX keys and possibly four default RX keys.
 881          * Physical mac 0 is mapped to physical key 4 or 8, depending
 882          * on the firmware version.
 883          * So we must adjust the index here.
 884          */
 885         index -= pairwise_keys_start;
 886         B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS);
 887
 888         if (b43_debug(dev, B43_DBG_KEYS)) {
 889                 b43dbg(dev->wl, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n",
 890                                 index, iv32);
 891         }
 892         /* Write the key to the  RX tkip shared mem */
 893         offset = B43_SHM_SH_TKIPTSCTTAK + index * (10 + 4);
 894         for (i = 0; i < 10; i += 2) {
 895                 b43_shm_write16(dev, B43_SHM_SHARED, offset + i,
 896                                 phase1key ? phase1key[i / 2] : 0);
 897         }
 898         b43_shm_write16(dev, B43_SHM_SHARED, offset + i, iv32);
 899         b43_shm_write16(dev, B43_SHM_SHARED, offset + i + 2, iv32 >> 16);
 900 }
 901
 902 static void b43_op_update_tkip_key(struct ieee80211_hw *hw,
 903                                    struct ieee80211_vif *vif,
 904                                    struct ieee80211_key_conf *keyconf,
 905                                    struct ieee80211_sta *sta,
 906                                    u32 iv32, u16 *phase1key)
 907 {
 908         struct b43_wl *wl = hw_to_b43_wl(hw);
 909         struct b43_wldev *dev;
 910         int index = keyconf->hw_key_idx;
 911
 912         if (B43_WARN_ON(!modparam_hwtkip))
 913                 return;
 914
 915         /* This is only called from the RX path through mac80211, where
 916          * our mutex is already locked. */
 917         B43_WARN_ON(!mutex_is_locked(&wl->mutex));
 918         dev = wl->current_dev;
 919         B43_WARN_ON(!dev || b43_status(dev) < B43_STAT_INITIALIZED);
 920
 921         keymac_write(dev, index, NULL); /* First zero out mac to avoid race */
 922
 923         rx_tkip_phase1_write(dev, index, iv32, phase1key);
 924         /* only pairwise TKIP keys are supported right now */
 925         if (WARN_ON(!sta))
 926                 return;
 927         keymac_write(dev, index, sta->addr);
 928 }
 929
 930 static void do_key_write(struct b43_wldev *dev,
 931                          u8 index, u8 algorithm,
 932                          const u8 *key, size_t key_len, const u8 *mac_addr)
 933 {
 934         u8 buf[B43_SEC_KEYSIZE] = { 0, };
 935         u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
 936
 937         if (b43_new_kidx_api(dev))
 938                 pairwise_keys_start = B43_NR_GROUP_KEYS;
 939
 940         B43_WARN_ON(index >= ARRAY_SIZE(dev->key));
 941         B43_WARN_ON(key_len > B43_SEC_KEYSIZE);
 942
 943         if (index >= pairwise_keys_start)
 944                 keymac_write(dev, index, NULL); /* First zero out mac. */
 945         if (algorithm == B43_SEC_ALGO_TKIP) {
 946                 /*
 947                  * We should provide an initial iv32, phase1key pair.
 948                  * We could start with iv32=0 and compute the corresponding
 949                  * phase1key, but this means calling ieee80211_get_tkip_key
 950                  * with a fake skb (or export other tkip function).
 951                  * Because we are lazy we hope iv32 won't start with
 952                  * 0xffffffff and let's b43_op_update_tkip_key provide a
 953                  * correct pair.
 954                  */
 955                 rx_tkip_phase1_write(dev, index, 0xffffffff, (u16*)buf);
 956         } else if (index >= pairwise_keys_start) /* clear it */
 957                 rx_tkip_phase1_write(dev, index, 0, NULL);
 958         if (key)
 959                 memcpy(buf, key, key_len);
 960         key_write(dev, index, algorithm, buf);
 961         if (index >= pairwise_keys_start)
 962                 keymac_write(dev, index, mac_addr);
 963
 964         dev->key[index].algorithm = algorithm;
 965 }
 966
 967 static int b43_key_write(struct b43_wldev *dev,
 968                          int index, u8 algorithm,
 969                          const u8 *key, size_t key_len,
 970                          const u8 *mac_addr,
 971                          struct ieee80211_key_conf *keyconf)
 972 {
 973         int i;
 974         int pairwise_keys_start;
 975
 976         /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block:
 977          *      - Temporal Encryption Key (128 bits)
 978          *      - Temporal Authenticator Tx MIC Key (64 bits)
 979          *      - Temporal Authenticator Rx MIC Key (64 bits)
 980          *
 981          *      Hardware only store TEK
 982          */
 983         if (algorithm == B43_SEC_ALGO_TKIP && key_len == 32)
 984                 key_len = 16;
 985         if (key_len > B43_SEC_KEYSIZE)
 986                 return -EINVAL;
 987         for (i = 0; i < ARRAY_SIZE(dev->key); i++) {
 988                 /* Check that we don't already have this key. */
 989                 B43_WARN_ON(dev->key[i].keyconf == keyconf);
 990         }
 991         if (index < 0) {
 992                 /* Pairwise key. Get an empty slot for the key. */
 993                 if (b43_new_kidx_api(dev))
 994                         pairwise_keys_start = B43_NR_GROUP_KEYS;
 995                 else
 996                         pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
 997                 for (i = pairwise_keys_start;
 998                      i < pairwise_keys_start + B43_NR_PAIRWISE_KEYS;
 999                      i++) {
1000                         B43_WARN_ON(i >= ARRAY_SIZE(dev->key));
1001                         if (!dev->key[i].keyconf) {
1002                                 /* found empty */
1003                                 index = i;
1004                                 break;
1005                         }
1006                 }
1007                 if (index < 0) {
1008                         b43warn(dev->wl, "Out of hardware key memory\n");
1009                         return -ENOSPC;
1010                 }
1011         } else
1012                 B43_WARN_ON(index > 3);
1013
1014         do_key_write(dev, index, algorithm, key, key_len, mac_addr);
1015         if ((index <= 3) && !b43_new_kidx_api(dev)) {
1016                 /* Default RX key */
1017                 B43_WARN_ON(mac_addr);
1018                 do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
1019         }
1020         keyconf->hw_key_idx = index;
1021         dev->key[index].keyconf = keyconf;
1022
1023         return 0;
1024 }
1025
1026 static int b43_key_clear(struct b43_wldev *dev, int index)
1027 {
1028         if (B43_WARN_ON((index < 0) || (index >= ARRAY_SIZE(dev->key))))
1029                 return -EINVAL;
1030         do_key_write(dev, index, B43_SEC_ALGO_NONE,
1031                      NULL, B43_SEC_KEYSIZE, NULL);
1032         if ((index <= 3) && !b43_new_kidx_api(dev)) {
1033                 do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,
1034                              NULL, B43_SEC_KEYSIZE, NULL);
1035         }
1036         dev->key[index].keyconf = NULL;
1037
1038         return 0;
1039 }
1040
1041 static void b43_clear_keys(struct b43_wldev *dev)
1042 {
1043         int i, count;
1044
1045         if (b43_new_kidx_api(dev))
1046                 count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS;
1047         else
1048                 count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS;
1049         for (i = 0; i < count; i++)
1050                 b43_key_clear(dev, i);
1051 }
1052
1053 static void b43_dump_keymemory(struct b43_wldev *dev)
1054 {
1055         unsigned int i, index, count, offset, pairwise_keys_start;
1056         u8 mac[ETH_ALEN];
1057         u16 algo;
1058         u32 rcmta0;
1059         u16 rcmta1;
1060         u64 hf;
1061         struct b43_key *key;
1062
1063         if (!b43_debug(dev, B43_DBG_KEYS))
1064                 return;
1065
1066         hf = b43_hf_read(dev);
1067         b43dbg(dev->wl, "Hardware key memory dump:  USEDEFKEYS=%u\n",
1068                !!(hf & B43_HF_USEDEFKEYS));
1069         if (b43_new_kidx_api(dev)) {
1070                 pairwise_keys_start = B43_NR_GROUP_KEYS;
1071                 count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS;
1072         } else {
1073                 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
1074                 count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS;
1075         }
1076         for (index = 0; index < count; index++) {
1077                 key = &(dev->key[index]);
1078                 printk(KERN_DEBUG "Key slot %02u: %s",
1079                        index, (key->keyconf == NULL) ? " " : "*");
1080                 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
1081                 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
1082                         u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i);
1083                         printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF));
1084                 }
1085
1086                 algo = b43_shm_read16(dev, B43_SHM_SHARED,
1087                                       B43_SHM_SH_KEYIDXBLOCK + (index * 2));
1088                 printk("   Algo: %04X/%02X", algo, key->algorithm);
1089
1090                 if (index >= pairwise_keys_start) {
1091                         if (key->algorithm == B43_SEC_ALGO_TKIP) {
1092                                 printk("   TKIP: ");
1093                                 offset = B43_SHM_SH_TKIPTSCTTAK + (index - 4) * (10 + 4);
1094                                 for (i = 0; i < 14; i += 2) {
1095                                         u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i);
1096                                         printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF));
1097                                 }
1098                         }
1099                         rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA,
1100                                                 ((index - pairwise_keys_start) * 2) + 0);
1101                         rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA,
1102                                                 ((index - pairwise_keys_start) * 2) + 1);
1103                         *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0);
1104                         *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1);
1105                         printk("   MAC: %pM", mac);
1106                 } else
1107                         printk("   DEFAULT KEY");
1108                 printk("\n");
1109         }
1110 }
1111
1112 void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
1113 {
1114         u32 macctl;
1115         u16 ucstat;
1116         bool hwps;
1117         bool awake;
1118         int i;
1119
1120         B43_WARN_ON((ps_flags & B43_PS_ENABLED) &&
1121                     (ps_flags & B43_PS_DISABLED));
1122         B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP));
1123
1124         if (ps_flags & B43_PS_ENABLED) {
1125                 hwps = true;
1126         } else if (ps_flags & B43_PS_DISABLED) {
1127                 hwps = false;
1128         } else {
1129                 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
1130                 //      and thus is not an AP and we are associated, set bit 25
1131         }
1132         if (ps_flags & B43_PS_AWAKE) {
1133                 awake = true;
1134         } else if (ps_flags & B43_PS_ASLEEP) {
1135                 awake = false;
1136         } else {
1137                 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
1138                 //      or we are associated, or FIXME, or the latest PS-Poll packet sent was
1139                 //      successful, set bit26
1140         }
1141
1142 /* FIXME: For now we force awake-on and hwps-off */
1143         hwps = false;
1144         awake = true;
1145
1146         macctl = b43_read32(dev, B43_MMIO_MACCTL);
1147         if (hwps)
1148                 macctl |= B43_MACCTL_HWPS;
1149         else
1150                 macctl &= ~B43_MACCTL_HWPS;
1151         if (awake)
1152                 macctl |= B43_MACCTL_AWAKE;
1153         else
1154                 macctl &= ~B43_MACCTL_AWAKE;
1155         b43_write32(dev, B43_MMIO_MACCTL, macctl);
1156         /* Commit write */
1157         b43_read32(dev, B43_MMIO_MACCTL);
1158         if (awake && dev->dev->core_rev >= 5) {
1159                 /* Wait for the microcode to wake up. */
1160                 for (i = 0; i < 100; i++) {
1161                         ucstat = b43_shm_read16(dev, B43_SHM_SHARED,
1162                                                 B43_SHM_SH_UCODESTAT);
1163                         if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP)
1164                                 break;
1165                         udelay(10);
1166                 }
1167         }
1168 }
1169
1170 #ifdef CONFIG_B43_BCMA
1171 static void b43_bcma_phy_reset(struct b43_wldev *dev)
1172 {
1173         u32 flags;
1174
1175         /* Put PHY into reset */
1176         flags = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
1177         flags |= B43_BCMA_IOCTL_PHY_RESET;
1178         flags |= B43_BCMA_IOCTL_PHY_BW_20MHZ; /* Make 20 MHz def */
1179         bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, flags);
1180         udelay(2);
1181
1182         /* Take PHY out of reset */
1183         flags = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
1184         flags &= ~B43_BCMA_IOCTL_PHY_RESET;
1185         flags |= BCMA_IOCTL_FGC;
1186         bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, flags);
1187         udelay(1);
1188
1189         /* Do not force clock anymore */
1190         flags = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
1191         flags &= ~BCMA_IOCTL_FGC;
1192         bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, flags);
1193         udelay(1);
1194 }
1195
1196 static void b43_bcma_wireless_core_reset(struct b43_wldev *dev, bool gmode)
1197 {
1198         b43_device_enable(dev, B43_BCMA_IOCTL_PHY_CLKEN);
1199         bcma_core_set_clockmode(dev->dev->bdev, BCMA_CLKMODE_FAST);
1200         b43_bcma_phy_reset(dev);
1201         bcma_core_pll_ctl(dev->dev->bdev, 0x300, 0x3000000, true);
1202 }
1203 #endif
1204
1205 static void b43_ssb_wireless_core_reset(struct b43_wldev *dev, bool gmode)
1206 {
1207         struct ssb_device *sdev = dev->dev->sdev;
1208         u32 tmslow;
1209         u32 flags = 0;
1210
1211         if (gmode)
1212                 flags |= B43_TMSLOW_GMODE;
1213         flags |= B43_TMSLOW_PHYCLKEN;
1214         flags |= B43_TMSLOW_PHYRESET;
1215         if (dev->phy.type == B43_PHYTYPE_N)
1216                 flags |= B43_TMSLOW_PHY_BANDWIDTH_20MHZ; /* Make 20 MHz def */
1217         b43_device_enable(dev, flags);
1218         msleep(2);              /* Wait for the PLL to turn on. */
1219
1220         /* Now take the PHY out of Reset again */
1221         tmslow = ssb_read32(sdev, SSB_TMSLOW);
1222         tmslow |= SSB_TMSLOW_FGC;
1223         tmslow &= ~B43_TMSLOW_PHYRESET;
1224         ssb_write32(sdev, SSB_TMSLOW, tmslow);
1225         ssb_read32(sdev, SSB_TMSLOW);   /* flush */
1226         msleep(1);
1227         tmslow &= ~SSB_TMSLOW_FGC;
1228         ssb_write32(sdev, SSB_TMSLOW, tmslow);
1229         ssb_read32(sdev, SSB_TMSLOW);   /* flush */
1230         msleep(1);
1231 }
1232
1233 void b43_wireless_core_reset(struct b43_wldev *dev, bool gmode)
1234 {
1235         u32 macctl;
1236
1237         switch (dev->dev->bus_type) {
1238 #ifdef CONFIG_B43_BCMA
1239         case B43_BUS_BCMA:
1240                 b43_bcma_wireless_core_reset(dev, gmode);
1241                 break;
1242 #endif
1243 #ifdef CONFIG_B43_SSB
1244         case B43_BUS_SSB:
1245                 b43_ssb_wireless_core_reset(dev, gmode);
1246                 break;
1247 #endif
1248         }
1249
1250         /* Turn Analog ON, but only if we already know the PHY-type.
1251          * This protects against very early setup where we don't know the
1252          * PHY-type, yet. wireless_core_reset will be called once again later,
1253          * when we know the PHY-type. */
1254         if (dev->phy.ops)
1255                 dev->phy.ops->switch_analog(dev, 1);
1256
1257         macctl = b43_read32(dev, B43_MMIO_MACCTL);
1258         macctl &= ~B43_MACCTL_GMODE;
1259         if (gmode)
1260                 macctl |= B43_MACCTL_GMODE;
1261         macctl |= B43_MACCTL_IHR_ENABLED;
1262         b43_write32(dev, B43_MMIO_MACCTL, macctl);
1263 }
1264
1265 static void handle_irq_transmit_status(struct b43_wldev *dev)
1266 {
1267         u32 v0, v1;
1268         u16 tmp;
1269         struct b43_txstatus stat;
1270
1271         while (1) {
1272                 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1273                 if (!(v0 & 0x00000001))
1274                         break;
1275                 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1276
1277                 stat.cookie = (v0 >> 16);
1278                 stat.seq = (v1 & 0x0000FFFF);
1279                 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
1280                 tmp = (v0 & 0x0000FFFF);
1281                 stat.frame_count = ((tmp & 0xF000) >> 12);
1282                 stat.rts_count = ((tmp & 0x0F00) >> 8);
1283                 stat.supp_reason = ((tmp & 0x001C) >> 2);
1284                 stat.pm_indicated = !!(tmp & 0x0080);
1285                 stat.intermediate = !!(tmp & 0x0040);
1286                 stat.for_ampdu = !!(tmp & 0x0020);
1287                 stat.acked = !!(tmp & 0x0002);
1288
1289                 b43_handle_txstatus(dev, &stat);
1290         }
1291 }
1292
1293 static void drain_txstatus_queue(struct b43_wldev *dev)
1294 {
1295         u32 dummy;
1296
1297         if (dev->dev->core_rev < 5)
1298                 return;
1299         /* Read all entries from the microcode TXstatus FIFO
1300          * and throw them away.
1301          */
1302         while (1) {
1303                 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1304                 if (!(dummy & 0x00000001))
1305                         break;
1306                 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1307         }
1308 }
1309
1310 static u32 b43_jssi_read(struct b43_wldev *dev)
1311 {
1312         u32 val = 0;
1313
1314         val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
1315         val <<= 16;
1316         val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
1317
1318         return val;
1319 }
1320
1321 static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
1322 {
1323         b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
1324         b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
1325 }
1326
1327 static void b43_generate_noise_sample(struct b43_wldev *dev)
1328 {
1329         b43_jssi_write(dev, 0x7F7F7F7F);
1330         b43_write32(dev, B43_MMIO_MACCMD,
1331                     b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
1332 }
1333
1334 static void b43_calculate_link_quality(struct b43_wldev *dev)
1335 {
1336         /* Top half of Link Quality calculation. */
1337
1338         if (dev->phy.type != B43_PHYTYPE_G)
1339                 return;
1340         if (dev->noisecalc.calculation_running)
1341                 return;
1342         dev->noisecalc.calculation_running = true;
1343         dev->noisecalc.nr_samples = 0;
1344
1345         b43_generate_noise_sample(dev);
1346 }
1347
1348 static void handle_irq_noise(struct b43_wldev *dev)
1349 {
1350         struct b43_phy_g *phy = dev->phy.g;
1351         u16 tmp;
1352         u8 noise[4];
1353         u8 i, j;
1354         s32 average;
1355
1356         /* Bottom half of Link Quality calculation. */
1357
1358         if (dev->phy.type != B43_PHYTYPE_G)
1359                 return;
1360
1361         /* Possible race condition: It might be possible that the user
1362          * changed to a different channel in the meantime since we
1363          * started the calculation. We ignore that fact, since it's
1364          * not really that much of a problem. The background noise is
1365          * an estimation only anyway. Slightly wrong results will get damped
1366          * by the averaging of the 8 sample rounds. Additionally the
1367          * value is shortlived. So it will be replaced by the next noise
1368          * calculation round soon. */
1369
1370         B43_WARN_ON(!dev->noisecalc.calculation_running);
1371         *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
1372         if (noise[0] == 0x7F || noise[1] == 0x7F ||
1373             noise[2] == 0x7F || noise[3] == 0x7F)
1374                 goto generate_new;
1375
1376         /* Get the noise samples. */
1377         B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
1378         i = dev->noisecalc.nr_samples;
1379         noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1380         noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1381         noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1382         noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1383         dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
1384         dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
1385         dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
1386         dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
1387         dev->noisecalc.nr_samples++;
1388         if (dev->noisecalc.nr_samples == 8) {
1389                 /* Calculate the Link Quality by the noise samples. */
1390                 average = 0;
1391                 for (i = 0; i < 8; i++) {
1392                         for (j = 0; j < 4; j++)
1393                                 average += dev->noisecalc.samples[i][j];
1394                 }
1395                 average /= (8 * 4);
1396                 average *= 125;
1397                 average += 64;
1398                 average /= 128;
1399                 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
1400                 tmp = (tmp / 128) & 0x1F;
1401                 if (tmp >= 8)
1402                         average += 2;
1403                 else
1404                         average -= 25;
1405                 if (tmp == 8)
1406                         average -= 72;
1407                 else
1408                         average -= 48;
1409
1410                 dev->stats.link_noise = average;
1411                 dev->noisecalc.calculation_running = false;
1412                 return;
1413         }
1414 generate_new:
1415         b43_generate_noise_sample(dev);
1416 }
1417
1418 static void handle_irq_tbtt_indication(struct b43_wldev *dev)
1419 {
1420         if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) {
1421                 ///TODO: PS TBTT
1422         } else {
1423                 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1424                         b43_power_saving_ctl_bits(dev, 0);
1425         }
1426         if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
1427                 dev->dfq_valid = true;
1428 }
1429
1430 static void handle_irq_atim_end(struct b43_wldev *dev)
1431 {
1432         if (dev->dfq_valid) {
1433                 b43_write32(dev, B43_MMIO_MACCMD,
1434                             b43_read32(dev, B43_MMIO_MACCMD)
1435                             | B43_MACCMD_DFQ_VALID);
1436                 dev->dfq_valid = false;
1437         }
1438 }
1439
1440 static void handle_irq_pmq(struct b43_wldev *dev)
1441 {
1442         u32 tmp;
1443
1444         //TODO: AP mode.
1445
1446         while (1) {
1447                 tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
1448                 if (!(tmp & 0x00000008))
1449                         break;
1450         }
1451         /* 16bit write is odd, but correct. */
1452         b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
1453 }
1454
1455 static void b43_write_template_common(struct b43_wldev *dev,
1456                                       const u8 *data, u16 size,
1457                                       u16 ram_offset,
1458                                       u16 shm_size_offset, u8 rate)
1459 {
1460         u32 i, tmp;
1461         struct b43_plcp_hdr4 plcp;
1462
1463         plcp.data = 0;
1464         b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
1465         b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
1466         ram_offset += sizeof(u32);
1467         /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1468          * So leave the first two bytes of the next write blank.
1469          */
1470         tmp = (u32) (data[0]) << 16;
1471         tmp |= (u32) (data[1]) << 24;
1472         b43_ram_write(dev, ram_offset, tmp);
1473         ram_offset += sizeof(u32);
1474         for (i = 2; i < size; i += sizeof(u32)) {
1475                 tmp = (u32) (data[i + 0]);
1476                 if (i + 1 < size)
1477                         tmp |= (u32) (data[i + 1]) << 8;
1478                 if (i + 2 < size)
1479                         tmp |= (u32) (data[i + 2]) << 16;
1480                 if (i + 3 < size)
1481                         tmp |= (u32) (data[i + 3]) << 24;
1482                 b43_ram_write(dev, ram_offset + i - 2, tmp);
1483         }
1484         b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
1485                         size + sizeof(struct b43_plcp_hdr6));
1486 }
1487
1488 /* Check if the use of the antenna that ieee80211 told us to
1489  * use is possible. This will fall back to DEFAULT.
1490  * "antenna_nr" is the antenna identifier we got from ieee80211. */
1491 u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
1492                                   u8 antenna_nr)
1493 {
1494         u8 antenna_mask;
1495
1496         if (antenna_nr == 0) {
1497                 /* Zero means "use default antenna". That's always OK. */
1498                 return 0;
1499         }
1500
1501         /* Get the mask of available antennas. */
1502         if (dev->phy.gmode)
1503                 antenna_mask = dev->dev->bus_sprom->ant_available_bg;
1504         else
1505                 antenna_mask = dev->dev->bus_sprom->ant_available_a;
1506
1507         if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
1508                 /* This antenna is not available. Fall back to default. */
1509                 return 0;
1510         }
1511
1512         return antenna_nr;
1513 }
1514
1515 /* Convert a b43 antenna number value to the PHY TX control value. */
1516 static u16 b43_antenna_to_phyctl(int antenna)
1517 {
1518         switch (antenna) {
1519         case B43_ANTENNA0:
1520                 return B43_TXH_PHY_ANT0;
1521         case B43_ANTENNA1:
1522                 return B43_TXH_PHY_ANT1;
1523         case B43_ANTENNA2:
1524                 return B43_TXH_PHY_ANT2;
1525         case B43_ANTENNA3:
1526                 return B43_TXH_PHY_ANT3;
1527         case B43_ANTENNA_AUTO0:
1528         case B43_ANTENNA_AUTO1:
1529                 return B43_TXH_PHY_ANT01AUTO;
1530         }
1531         B43_WARN_ON(1);
1532         return 0;
1533 }
1534
1535 static void b43_write_beacon_template(struct b43_wldev *dev,
1536                                       u16 ram_offset,
1537                                       u16 shm_size_offset)
1538 {
1539         unsigned int i, len, variable_len;
1540         const struct ieee80211_mgmt *bcn;
1541         const u8 *ie;
1542         bool tim_found = false;
1543         unsigned int rate;
1544         u16 ctl;
1545         int antenna;
1546         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
1547
1548         bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
1549         len = min((size_t) dev->wl->current_beacon->len,
1550                   0x200 - sizeof(struct b43_plcp_hdr6));
1551         rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
1552
1553         b43_write_template_common(dev, (const u8 *)bcn,
1554                                   len, ram_offset, shm_size_offset, rate);
1555
1556         /* Write the PHY TX control parameters. */
1557         antenna = B43_ANTENNA_DEFAULT;
1558         antenna = b43_antenna_to_phyctl(antenna);
1559         ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
1560         /* We can't send beacons with short preamble. Would get PHY errors. */
1561         ctl &= ~B43_TXH_PHY_SHORTPRMBL;
1562         ctl &= ~B43_TXH_PHY_ANT;
1563         ctl &= ~B43_TXH_PHY_ENC;
1564         ctl |= antenna;
1565         if (b43_is_cck_rate(rate))
1566                 ctl |= B43_TXH_PHY_ENC_CCK;
1567         else
1568                 ctl |= B43_TXH_PHY_ENC_OFDM;
1569         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
1570
1571         /* Find the position of the TIM and the DTIM_period value
1572          * and write them to SHM. */
1573         ie = bcn->u.beacon.variable;
1574         variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
1575         for (i = 0; i < variable_len - 2; ) {
1576                 uint8_t ie_id, ie_len;
1577
1578                 ie_id = ie[i];
1579                 ie_len = ie[i + 1];
1580                 if (ie_id == 5) {
1581                         u16 tim_position;
1582                         u16 dtim_period;
1583                         /* This is the TIM Information Element */
1584
1585                         /* Check whether the ie_len is in the beacon data range. */
1586                         if (variable_len < ie_len + 2 + i)
1587                                 break;
1588                         /* A valid TIM is at least 4 bytes long. */
1589                         if (ie_len < 4)
1590                                 break;
1591                         tim_found = true;
1592
1593                         tim_position = sizeof(struct b43_plcp_hdr6);
1594                         tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
1595                         tim_position += i;
1596
1597                         dtim_period = ie[i + 3];
1598
1599                         b43_shm_write16(dev, B43_SHM_SHARED,
1600                                         B43_SHM_SH_TIMBPOS, tim_position);
1601                         b43_shm_write16(dev, B43_SHM_SHARED,
1602                                         B43_SHM_SH_DTIMPER, dtim_period);
1603                         break;
1604                 }
1605                 i += ie_len + 2;
1606         }
1607         if (!tim_found) {
1608                 /*
1609                  * If ucode wants to modify TIM do it behind the beacon, this
1610                  * will happen, for example, when doing mesh networking.
1611                  */
1612                 b43_shm_write16(dev, B43_SHM_SHARED,
1613                                 B43_SHM_SH_TIMBPOS,
1614                                 len + sizeof(struct b43_plcp_hdr6));
1615                 b43_shm_write16(dev, B43_SHM_SHARED,
1616                                 B43_SHM_SH_DTIMPER, 0);
1617         }
1618         b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset);
1619 }
1620
1621 static void b43_upload_beacon0(struct b43_wldev *dev)
1622 {
1623         struct b43_wl *wl = dev->wl;
1624
1625         if (wl->beacon0_uploaded)
1626                 return;
1627         b43_write_beacon_template(dev, 0x68, 0x18);
1628         wl->beacon0_uploaded = true;
1629 }
1630
1631 static void b43_upload_beacon1(struct b43_wldev *dev)
1632 {
1633         struct b43_wl *wl = dev->wl;
1634
1635         if (wl->beacon1_uploaded)
1636                 return;
1637         b43_write_beacon_template(dev, 0x468, 0x1A);
1638         wl->beacon1_uploaded = true;
1639 }
1640
1641 static void handle_irq_beacon(struct b43_wldev *dev)
1642 {
1643         struct b43_wl *wl = dev->wl;
1644         u32 cmd, beacon0_valid, beacon1_valid;
1645
1646         if (!b43_is_mode(wl, NL80211_IFTYPE_AP) &&
1647             !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) &&
1648             !b43_is_mode(wl, NL80211_IFTYPE_ADHOC))
1649                 return;
1650
1651         /* This is the bottom half of the asynchronous beacon update. */
1652
1653         /* Ignore interrupt in the future. */
1654         dev->irq_mask &= ~B43_IRQ_BEACON;
1655
1656         cmd = b43_read32(dev, B43_MMIO_MACCMD);
1657         beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID);
1658         beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID);
1659
1660         /* Schedule interrupt manually, if busy. */
1661         if (beacon0_valid && beacon1_valid) {
1662                 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON);
1663                 dev->irq_mask |= B43_IRQ_BEACON;
1664                 return;
1665         }
1666
1667         if (unlikely(wl->beacon_templates_virgin)) {
1668                 /* We never uploaded a beacon before.
1669                  * Upload both templates now, but only mark one valid. */
1670                 wl->beacon_templates_virgin = false;
1671                 b43_upload_beacon0(dev);
1672                 b43_upload_beacon1(dev);
1673                 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1674                 cmd |= B43_MACCMD_BEACON0_VALID;
1675                 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1676         } else {
1677                 if (!beacon0_valid) {
1678                         b43_upload_beacon0(dev);
1679                         cmd = b43_read32(dev, B43_MMIO_MACCMD);
1680                         cmd |= B43_MACCMD_BEACON0_VALID;
1681                         b43_write32(dev, B43_MMIO_MACCMD, cmd);
1682                 } else if (!beacon1_valid) {
1683                         b43_upload_beacon1(dev);
1684                         cmd = b43_read32(dev, B43_MMIO_MACCMD);
1685                         cmd |= B43_MACCMD_BEACON1_VALID;
1686                         b43_write32(dev, B43_MMIO_MACCMD, cmd);
1687                 }
1688         }
1689 }
1690
1691 static void b43_do_beacon_update_trigger_work(struct b43_wldev *dev)
1692 {
1693         u32 old_irq_mask = dev->irq_mask;
1694
1695         /* update beacon right away or defer to irq */
1696         handle_irq_beacon(dev);
1697         if (old_irq_mask != dev->irq_mask) {
1698                 /* The handler updated the IRQ mask. */
1699                 B43_WARN_ON(!dev->irq_mask);
1700                 if (b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)) {
1701                         b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1702                 } else {
1703                         /* Device interrupts are currently disabled. That means
1704                          * we just ran the hardirq handler and scheduled the
1705                          * IRQ thread. The thread will write the IRQ mask when
1706                          * it finished, so there's nothing to do here. Writing
1707                          * the mask _here_ would incorrectly re-enable IRQs. */
1708                 }
1709         }
1710 }
1711
1712 static void b43_beacon_update_trigger_work(struct work_struct *work)
1713 {
1714         struct b43_wl *wl = container_of(work, struct b43_wl,
1715                                          beacon_update_trigger);
1716         struct b43_wldev *dev;
1717
1718         mutex_lock(&wl->mutex);
1719         dev = wl->current_dev;
1720         if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
1721                 if (b43_bus_host_is_sdio(dev->dev)) {
1722                         /* wl->mutex is enough. */
1723                         b43_do_beacon_update_trigger_work(dev);
1724                         mmiowb();
1725                 } else {
1726                         spin_lock_irq(&wl->hardirq_lock);
1727                         b43_do_beacon_update_trigger_work(dev);
1728                         mmiowb();
1729                         spin_unlock_irq(&wl->hardirq_lock);
1730                 }
1731         }
1732         mutex_unlock(&wl->mutex);
1733 }
1734
1735 /* Asynchronously update the packet templates in template RAM.
1736  * Locking: Requires wl->mutex to be locked. */
1737 static void b43_update_templates(struct b43_wl *wl)
1738 {
1739         struct sk_buff *beacon;
1740
1741         /* This is the top half of the ansynchronous beacon update.
1742          * The bottom half is the beacon IRQ.
1743          * Beacon update must be asynchronous to avoid sending an
1744          * invalid beacon. This can happen for example, if the firmware
1745          * transmits a beacon while we are updating it. */
1746
1747         /* We could modify the existing beacon and set the aid bit in
1748          * the TIM field, but that would probably require resizing and
1749          * moving of data within the beacon template.
1750          * Simply request a new beacon and let mac80211 do the hard work. */
1751         beacon = ieee80211_beacon_get(wl->hw, wl->vif);
1752         if (unlikely(!beacon))
1753                 return;
1754
1755         if (wl->current_beacon)
1756                 dev_kfree_skb_any(wl->current_beacon);
1757         wl->current_beacon = beacon;
1758         wl->beacon0_uploaded = false;
1759         wl->beacon1_uploaded = false;
1760         ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger);
1761 }
1762
1763 static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
1764 {
1765         b43_time_lock(dev);
1766         if (dev->dev->core_rev >= 3) {
1767                 b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16));
1768                 b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10));
1769         } else {
1770                 b43_write16(dev, 0x606, (beacon_int >> 6));
1771                 b43_write16(dev, 0x610, beacon_int);
1772         }
1773         b43_time_unlock(dev);
1774         b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
1775 }
1776
1777 static void b43_handle_firmware_panic(struct b43_wldev *dev)
1778 {
1779         u16 reason;
1780
1781         /* Read the register that contains the reason code for the panic. */
1782         reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG);
1783         b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason);
1784
1785         switch (reason) {
1786         default:
1787                 b43dbg(dev->wl, "The panic reason is unknown.\n");
1788                 /* fallthrough */
1789         case B43_FWPANIC_DIE:
1790                 /* Do not restart the controller or firmware.
1791                  * The device is nonfunctional from now on.
1792                  * Restarting would result in this panic to trigger again,
1793                  * so we avoid that recursion. */
1794                 break;
1795         case B43_FWPANIC_RESTART:
1796                 b43_controller_restart(dev, "Microcode panic");
1797                 break;
1798         }
1799 }
1800
1801 static void handle_irq_ucode_debug(struct b43_wldev *dev)
1802 {
1803         unsigned int i, cnt;
1804         u16 reason, marker_id, marker_line;
1805         __le16 *buf;
1806
1807         /* The proprietary firmware doesn't have this IRQ. */
1808         if (!dev->fw.opensource)
1809                 return;
1810
1811         /* Read the register that contains the reason code for this IRQ. */
1812         reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG);
1813
1814         switch (reason) {
1815         case B43_DEBUGIRQ_PANIC:
1816                 b43_handle_firmware_panic(dev);
1817                 break;
1818         case B43_DEBUGIRQ_DUMP_SHM:
1819                 if (!B43_DEBUG)
1820                         break; /* Only with driver debugging enabled. */
1821                 buf = kmalloc(4096, GFP_ATOMIC);
1822                 if (!buf) {
1823                         b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n");
1824                         goto out;
1825                 }
1826                 for (i = 0; i < 4096; i += 2) {
1827                         u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i);
1828                         buf[i / 2] = cpu_to_le16(tmp);
1829                 }
1830                 b43info(dev->wl, "Shared memory dump:\n");
1831                 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET,
1832                                16, 2, buf, 4096, 1);
1833                 kfree(buf);
1834                 break;
1835         case B43_DEBUGIRQ_DUMP_REGS:
1836                 if (!B43_DEBUG)
1837                         break; /* Only with driver debugging enabled. */
1838                 b43info(dev->wl, "Microcode register dump:\n");
1839                 for (i = 0, cnt = 0; i < 64; i++) {
1840                         u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i);
1841                         if (cnt == 0)
1842                                 printk(KERN_INFO);
1843                         printk("r%02u: 0x%04X  ", i, tmp);
1844                         cnt++;
1845                         if (cnt == 6) {
1846                                 printk("\n");
1847                                 cnt = 0;
1848                         }
1849                 }
1850                 printk("\n");
1851                 break;
1852         case B43_DEBUGIRQ_MARKER:
1853                 if (!B43_DEBUG)
1854                         break; /* Only with driver debugging enabled. */
1855                 marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH,
1856                                            B43_MARKER_ID_REG);
1857                 marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH,
1858                                              B43_MARKER_LINE_REG);
1859                 b43info(dev->wl, "The firmware just executed the MARKER(%u) "
1860                         "at line number %u\n",
1861                         marker_id, marker_line);
1862                 break;
1863         default:
1864                 b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n",
1865                        reason);
1866         }
1867 out:
1868         /* Acknowledge the debug-IRQ, so the firmware can continue. */
1869         b43_shm_write16(dev, B43_SHM_SCRATCH,
1870                         B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK);
1871 }
1872
1873 static void b43_do_interrupt_thread(struct b43_wldev *dev)
1874 {
1875         u32 reason;
1876         u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1877         u32 merged_dma_reason = 0;
1878         int i;
1879
1880         if (unlikely(b43_status(dev) != B43_STAT_STARTED))
1881                 return;
1882
1883         reason = dev->irq_reason;
1884         for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1885                 dma_reason[i] = dev->dma_reason[i];
1886                 merged_dma_reason |= dma_reason[i];
1887         }
1888
1889         if (unlikely(reason & B43_IRQ_MAC_TXERR))
1890                 b43err(dev->wl, "MAC transmission error\n");
1891
1892         if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
1893                 b43err(dev->wl, "PHY transmission error\n");
1894                 rmb();
1895                 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1896                         atomic_set(&dev->phy.txerr_cnt,
1897                                    B43_PHY_TX_BADNESS_LIMIT);
1898                         b43err(dev->wl, "Too many PHY TX errors, "
1899                                         "restarting the controller\n");
1900                         b43_controller_restart(dev, "PHY TX errors");
1901                 }
1902         }
1903
1904         if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
1905                                           B43_DMAIRQ_NONFATALMASK))) {
1906                 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
1907                         b43err(dev->wl, "Fatal DMA error: "
1908                                "0x%08X, 0x%08X, 0x%08X, "
1909                                "0x%08X, 0x%08X, 0x%08X\n",
1910                                dma_reason[0], dma_reason[1],
1911                                dma_reason[2], dma_reason[3],
1912                                dma_reason[4], dma_reason[5]);
1913                         b43err(dev->wl, "This device does not support DMA "
1914                                "on your system. It will now be switched to PIO.\n");
1915                         /* Fall back to PIO transfers if we get fatal DMA errors! */
1916                         dev->use_pio = true;
1917                         b43_controller_restart(dev, "DMA error");
1918                         return;
1919                 }
1920                 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
1921                         b43err(dev->wl, "DMA error: "
1922                                "0x%08X, 0x%08X, 0x%08X, "
1923                                "0x%08X, 0x%08X, 0x%08X\n",
1924                                dma_reason[0], dma_reason[1],
1925                                dma_reason[2], dma_reason[3],
1926                                dma_reason[4], dma_reason[5]);
1927                 }
1928         }
1929
1930         if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
1931                 handle_irq_ucode_debug(dev);
1932         if (reason & B43_IRQ_TBTT_INDI)
1933                 handle_irq_tbtt_indication(dev);
1934         if (reason & B43_IRQ_ATIM_END)
1935                 handle_irq_atim_end(dev);
1936         if (reason & B43_IRQ_BEACON)
1937                 handle_irq_beacon(dev);
1938         if (reason & B43_IRQ_PMQ)
1939                 handle_irq_pmq(dev);
1940         if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
1941                 ;/* TODO */
1942         if (reason & B43_IRQ_NOISESAMPLE_OK)
1943                 handle_irq_noise(dev);
1944
1945         /* Check the DMA reason registers for received data. */
1946         if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
1947                 if (b43_using_pio_transfers(dev))
1948                         b43_pio_rx(dev->pio.rx_queue);
1949                 else
1950                         b43_dma_rx(dev->dma.rx_ring);
1951         }
1952         B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
1953         B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
1954         B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
1955         B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
1956         B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
1957
1958         if (reason & B43_IRQ_TX_OK)
1959                 handle_irq_transmit_status(dev);
1960
1961         /* Re-enable interrupts on the device by restoring the current interrupt mask. */
1962         b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1963
1964 #if B43_DEBUG
1965         if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
1966                 dev->irq_count++;
1967                 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
1968                         if (reason & (1 << i))
1969                                 dev->irq_bit_count[i]++;
1970                 }
1971         }
1972 #endif
1973 }
1974
1975 /* Interrupt thread handler. Handles device interrupts in thread context. */
1976 static irqreturn_t b43_interrupt_thread_handler(int irq, void *dev_id)
1977 {
1978         struct b43_wldev *dev = dev_id;
1979
1980         mutex_lock(&dev->wl->mutex);
1981         b43_do_interrupt_thread(dev);
1982         mmiowb();
1983         mutex_unlock(&dev->wl->mutex);
1984
1985         return IRQ_HANDLED;
1986 }
1987
1988 static irqreturn_t b43_do_interrupt(struct b43_wldev *dev)
1989 {
1990         u32 reason;
1991
1992         /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses.
1993          * On SDIO, this runs under wl->mutex. */
1994
1995         reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1996         if (reason == 0xffffffff)       /* shared IRQ */
1997                 return IRQ_NONE;
1998         reason &= dev->irq_mask;
1999         if (!reason)
2000                 return IRQ_NONE;
2001
2002         dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
2003             & 0x0001DC00;
2004         dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
2005             & 0x0000DC00;
2006         dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
2007             & 0x0000DC00;
2008         dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
2009             & 0x0001DC00;
2010         dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
2011             & 0x0000DC00;
2012 /* Unused ring
2013         dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
2014             & 0x0000DC00;
2015 */
2016
2017         /* ACK the interrupt. */
2018         b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
2019         b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
2020         b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
2021         b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
2022         b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
2023         b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
2024 /* Unused ring
2025         b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
2026 */
2027
2028         /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */
2029         b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
2030         /* Save the reason bitmasks for the IRQ thread handler. */
2031         dev->irq_reason = reason;
2032
2033         return IRQ_WAKE_THREAD;
2034 }
2035
2036 /* Interrupt handler top-half. This runs with interrupts disabled. */
2037 static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
2038 {
2039         struct b43_wldev *dev = dev_id;
2040         irqreturn_t ret;
2041
2042         if (unlikely(b43_status(dev) < B43_STAT_STARTED))
2043                 return IRQ_NONE;
2044
2045         spin_lock(&dev->wl->hardirq_lock);
2046         ret = b43_do_interrupt(dev);
2047         mmiowb();
2048         spin_unlock(&dev->wl->hardirq_lock);
2049
2050         return ret;
2051 }
2052
2053 /* SDIO interrupt handler. This runs in process context. */
2054 static void b43_sdio_interrupt_handler(struct b43_wldev *dev)
2055 {
2056         struct b43_wl *wl = dev->wl;
2057         irqreturn_t ret;
2058
2059         mutex_lock(&wl->mutex);
2060
2061         ret = b43_do_interrupt(dev);
2062         if (ret == IRQ_WAKE_THREAD)
2063                 b43_do_interrupt_thread(dev);
2064
2065         mutex_unlock(&wl->mutex);
2066 }
2067
2068 void b43_do_release_fw(struct b43_firmware_file *fw)
2069 {
2070         release_firmware(fw->data);
2071         fw->data = NULL;
2072         fw->filename = NULL;
2073 }
2074
2075 static void b43_release_firmware(struct b43_wldev *dev)
2076 {
2077         b43_do_release_fw(&dev->fw.ucode);
2078         b43_do_release_fw(&dev->fw.pcm);
2079         b43_do_release_fw(&dev->fw.initvals);
2080         b43_do_release_fw(&dev->fw.initvals_band);
2081 }
2082
2083 static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
2084 {
2085         const char text[] =
2086                 "You must go to " \
2087                 "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \
2088                 "and download the correct firmware for this driver version. " \
2089                 "Please carefully read all instructions on this website.\n";
2090
2091         if (error)
2092                 b43err(wl, text);
2093         else
2094                 b43warn(wl, text);
2095 }
2096
2097 int b43_do_request_fw(struct b43_request_fw_context *ctx,
2098                       const char *name,
2099                       struct b43_firmware_file *fw)
2100 {
2101         const struct firmware *blob;
2102         struct b43_fw_header *hdr;
2103         u32 size;
2104         int err;
2105
2106         if (!name) {
2107                 /* Don't fetch anything. Free possibly cached firmware. */
2108                 /* FIXME: We should probably keep it anyway, to save some headache
2109                  * on suspend/resume with multiband devices. */
2110                 b43_do_release_fw(fw);
2111                 return 0;
2112         }
2113         if (fw->filename) {
2114                 if ((fw->type == ctx->req_type) &&
2115                     (strcmp(fw->filename, name) == 0))
2116                         return 0; /* Already have this fw. */
2117                 /* Free the cached firmware first. */
2118                 /* FIXME: We should probably do this later after we successfully
2119                  * got the new fw. This could reduce headache with multiband devices.
2120                  * We could also redesign this to cache the firmware for all possible
2121                  * bands all the time. */
2122                 b43_do_release_fw(fw);
2123         }
2124
2125         switch (ctx->req_type) {
2126         case B43_FWTYPE_PROPRIETARY:
2127                 snprintf(ctx->fwname, sizeof(ctx->fwname),
2128                          "b43%s/%s.fw",
2129                          modparam_fwpostfix, name);
2130                 break;
2131         case B43_FWTYPE_OPENSOURCE:
2132                 snprintf(ctx->fwname, sizeof(ctx->fwname),
2133                          "b43-open%s/%s.fw",
2134                          modparam_fwpostfix, name);
2135                 break;
2136         default:
2137                 B43_WARN_ON(1);
2138                 return -ENOSYS;
2139         }
2140         err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev);
2141         if (err == -ENOENT) {
2142                 snprintf(ctx->errors[ctx->req_type],
2143                          sizeof(ctx->errors[ctx->req_type]),
2144                          "Firmware file \"%s\" not found\n", ctx->fwname);
2145                 return err;
2146         } else if (err) {
2147                 snprintf(ctx->errors[ctx->req_type],
2148                          sizeof(ctx->errors[ctx->req_type]),
2149                          "Firmware file \"%s\" request failed (err=%d)\n",
2150                          ctx->fwname, err);
2151                 return err;
2152         }
2153         if (blob->size < sizeof(struct b43_fw_header))
2154                 goto err_format;
2155         hdr = (struct b43_fw_header *)(blob->data);
2156         switch (hdr->type) {
2157         case B43_FW_TYPE_UCODE:
2158         case B43_FW_TYPE_PCM:
2159                 size = be32_to_cpu(hdr->size);
2160                 if (size != blob->size - sizeof(struct b43_fw_header))
2161                         goto err_format;
2162                 /* fallthrough */
2163         case B43_FW_TYPE_IV:
2164                 if (hdr->ver != 1)
2165                         goto err_format;
2166                 break;
2167         default:
2168                 goto err_format;
2169         }
2170
2171         fw->data = blob;
2172         fw->filename = name;
2173         fw->type = ctx->req_type;
2174
2175         return 0;
2176
2177 err_format:
2178         snprintf(ctx->errors[ctx->req_type],
2179                  sizeof(ctx->errors[ctx->req_type]),
2180                  "Firmware file \"%s\" format error.\n", ctx->fwname);
2181         release_firmware(blob);
2182
2183         return -EPROTO;
2184 }
2185
2186 static int b43_try_request_fw(struct b43_request_fw_context *ctx)
2187 {
2188         struct b43_wldev *dev = ctx->dev;
2189         struct b43_firmware *fw = &ctx->dev->fw;
2190         const u8 rev = ctx->dev->dev->core_rev;
2191         const char *filename;
2192         u32 tmshigh;
2193         int err;
2194
2195         /* Files for HT and LCN were found by trying one by one */
2196
2197         /* Get microcode */
2198         if ((rev >= 5) && (rev <= 10)) {
2199                 filename = "ucode5";
2200         } else if ((rev >= 11) && (rev <= 12)) {
2201                 filename = "ucode11";
2202         } else if (rev == 13) {
2203                 filename = "ucode13";
2204         } else if (rev == 14) {
2205                 filename = "ucode14";
2206         } else if (rev == 15) {
2207                 filename = "ucode15";
2208         } else {
2209                 switch (dev->phy.type) {
2210                 case B43_PHYTYPE_N:
2211                         if (rev >= 16)
2212                                 filename = "ucode16_mimo";
2213                         else
2214                                 goto err_no_ucode;
2215                         break;
2216                 case B43_PHYTYPE_HT:
2217                         if (rev == 29)
2218                                 filename = "ucode29_mimo";
2219                         else
2220                                 goto err_no_ucode;
2221                         break;
2222                 case B43_PHYTYPE_LCN:
2223                         if (rev == 24)
2224                                 filename = "ucode24_mimo";
2225                         else
2226                                 goto err_no_ucode;
2227                         break;
2228                 default:
2229                         goto err_no_ucode;
2230                 }
2231         }
2232         err = b43_do_request_fw(ctx, filename, &fw->ucode);
2233         if (err)
2234                 goto err_load;
2235
2236         /* Get PCM code */
2237         if ((rev >= 5) && (rev <= 10))
2238                 filename = "pcm5";
2239         else if (rev >= 11)
2240                 filename = NULL;
2241         else
2242                 goto err_no_pcm;
2243         fw->pcm_request_failed = false;
2244         err = b43_do_request_fw(ctx, filename, &fw->pcm);
2245         if (err == -ENOENT) {
2246                 /* We did not find a PCM file? Not fatal, but
2247                  * core rev <= 10 must do without hwcrypto then. */
2248                 fw->pcm_request_failed = true;
2249         } else if (err)
2250                 goto err_load;
2251
2252         /* Get initvals */
2253         switch (dev->phy.type) {
2254         case B43_PHYTYPE_A:
2255                 if ((rev >= 5) && (rev <= 10)) {
2256                         tmshigh = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
2257                         if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2258                                 filename = "a0g1initvals5";
2259                         else
2260                                 filename = "a0g0initvals5";
2261                 } else
2262                         goto err_no_initvals;
2263                 break;
2264         case B43_PHYTYPE_G:
2265                 if ((rev >= 5) && (rev <= 10))
2266                         filename = "b0g0initvals5";
2267                 else if (rev >= 13)
2268                         filename = "b0g0initvals13";
2269                 else
2270                         goto err_no_initvals;
2271                 break;
2272         case B43_PHYTYPE_N:
2273                 if (rev >= 16)
2274                         filename = "n0initvals16";
2275                 else if ((rev >= 11) && (rev <= 12))
2276                         filename = "n0initvals11";
2277                 else
2278                         goto err_no_initvals;
2279                 break;
2280         case B43_PHYTYPE_LP:
2281                 if (rev == 13)
2282                         filename = "lp0initvals13";
2283                 else if (rev == 14)
2284                         filename = "lp0initvals14";
2285                 else if (rev >= 15)
2286                         filename = "lp0initvals15";
2287                 else
2288                         goto err_no_initvals;
2289                 break;
2290         case B43_PHYTYPE_HT:
2291                 if (rev == 29)
2292                         filename = "ht0initvals29";
2293                 else
2294                         goto err_no_initvals;
2295                 break;
2296         case B43_PHYTYPE_LCN:
2297                 if (rev == 24)
2298                         filename = "lcn0initvals24";
2299                 else
2300                         goto err_no_initvals;
2301                 break;
2302         default:
2303                 goto err_no_initvals;
2304         }
2305         err = b43_do_request_fw(ctx, filename, &fw->initvals);
2306         if (err)
2307                 goto err_load;
2308
2309         /* Get bandswitch initvals */
2310         switch (dev->phy.type) {
2311         case B43_PHYTYPE_A:
2312                 if ((rev >= 5) && (rev <= 10)) {
2313                         tmshigh = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
2314                         if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2315                                 filename = "a0g1bsinitvals5";
2316                         else
2317                                 filename = "a0g0bsinitvals5";
2318                 } else if (rev >= 11)
2319                         filename = NULL;
2320                 else
2321                         goto err_no_initvals;
2322                 break;
2323         case B43_PHYTYPE_G:
2324                 if ((rev >= 5) && (rev <= 10))
2325                         filename = "b0g0bsinitvals5";
2326                 else if (rev >= 11)
2327                         filename = NULL;
2328                 else
2329                         goto err_no_initvals;
2330                 break;
2331         case B43_PHYTYPE_N:
2332                 if (rev >= 16)
2333                         filename = "n0bsinitvals16";
2334                 else if ((rev >= 11) && (rev <= 12))
2335                         filename = "n0bsinitvals11";
2336                 else
2337                         goto err_no_initvals;
2338                 break;
2339         case B43_PHYTYPE_LP:
2340                 if (rev == 13)
2341                         filename = "lp0bsinitvals13";
2342                 else if (rev == 14)
2343                         filename = "lp0bsinitvals14";
2344                 else if (rev >= 15)
2345                         filename = "lp0bsinitvals15";
2346                 else
2347                         goto err_no_initvals;
2348                 break;
2349         case B43_PHYTYPE_HT:
2350                 if (rev == 29)
2351                         filename = "ht0bsinitvals29";
2352                 else
2353                         goto err_no_initvals;
2354                 break;
2355         case B43_PHYTYPE_LCN:
2356                 if (rev == 24)
2357                         filename = "lcn0bsinitvals24";
2358                 else
2359                         goto err_no_initvals;
2360                 break;
2361         default:
2362                 goto err_no_initvals;
2363         }
2364         err = b43_do_request_fw(ctx, filename, &fw->initvals_band);
2365         if (err)
2366                 goto err_load;
2367
2368         return 0;
2369
2370 err_no_ucode:
2371         err = ctx->fatal_failure = -EOPNOTSUPP;
2372         b43err(dev->wl, "The driver does not know which firmware (ucode) "
2373                "is required for your device (wl-core rev %u)\n", rev);
2374         goto error;
2375
2376 err_no_pcm:
2377         err = ctx->fatal_failure = -EOPNOTSUPP;
2378         b43err(dev->wl, "The driver does not know which firmware (PCM) "
2379                "is required for your device (wl-core rev %u)\n", rev);
2380         goto error;
2381
2382 err_no_initvals:
2383         err = ctx->fatal_failure = -EOPNOTSUPP;
2384         b43err(dev->wl, "The driver does not know which firmware (initvals) "
2385                "is required for your device (wl-core rev %u)\n", rev);
2386         goto error;
2387
2388 err_load:
2389         /* We failed to load this firmware image. The error message
2390          * already is in ctx->errors. Return and let our caller decide
2391          * what to do. */
2392         goto error;
2393
2394 error:
2395         b43_release_firmware(dev);
2396         return err;
2397 }
2398
2399 static int b43_request_firmware(struct b43_wldev *dev)
2400 {
2401         struct b43_request_fw_context *ctx;
2402         unsigned int i;
2403         int err;
2404         const char *errmsg;
2405
2406         ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2407         if (!ctx)
2408                 return -ENOMEM;
2409         ctx->dev = dev;
2410
2411         ctx->req_type = B43_FWTYPE_PROPRIETARY;
2412         err = b43_try_request_fw(ctx);
2413         if (!err)
2414                 goto out; /* Successfully loaded it. */
2415         err = ctx->fatal_failure;
2416         if (err)
2417                 goto out;
2418
2419         ctx->req_type = B43_FWTYPE_OPENSOURCE;
2420         err = b43_try_request_fw(ctx);
2421         if (!err)
2422                 goto out; /* Successfully loaded it. */
2423         err = ctx->fatal_failure;
2424         if (err)
2425                 goto out;
2426
2427         /* Could not find a usable firmware. Print the errors. */
2428         for (i = 0; i < B43_NR_FWTYPES; i++) {
2429                 errmsg = ctx->errors[i];
2430                 if (strlen(errmsg))
2431                         b43err(dev->wl, errmsg);
2432         }
2433         b43_print_fw_helptext(dev->wl, 1);
2434         err = -ENOENT;
2435
2436 out:
2437         kfree(ctx);
2438         return err;
2439 }
2440
2441 static int b43_upload_microcode(struct b43_wldev *dev)
2442 {
2443         struct wiphy *wiphy = dev->wl->hw->wiphy;
2444         const size_t hdr_len = sizeof(struct b43_fw_header);
2445         const __be32 *data;
2446         unsigned int i, len;
2447         u16 fwrev, fwpatch, fwdate, fwtime;
2448         u32 tmp, macctl;
2449         int err = 0;
2450
2451         /* Jump the microcode PSM to offset 0 */
2452         macctl = b43_read32(dev, B43_MMIO_MACCTL);
2453         B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
2454         macctl |= B43_MACCTL_PSM_JMP0;
2455         b43_write32(dev, B43_MMIO_MACCTL, macctl);
2456         /* Zero out all microcode PSM registers and shared memory. */
2457         for (i = 0; i < 64; i++)
2458                 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
2459         for (i = 0; i < 4096; i += 2)
2460                 b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
2461
2462         /* Upload Microcode. */
2463         data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
2464         len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
2465         b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
2466         for (i = 0; i < len; i++) {
2467                 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2468                 udelay(10);
2469         }
2470
2471         if (dev->fw.pcm.data) {
2472                 /* Upload PCM data. */
2473                 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
2474                 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
2475                 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
2476                 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
2477                 /* No need for autoinc bit in SHM_HW */
2478                 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
2479                 for (i = 0; i < len; i++) {
2480                         b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2481                         udelay(10);
2482                 }
2483         }
2484
2485         b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
2486
2487         /* Start the microcode PSM */
2488         macctl = b43_read32(dev, B43_MMIO_MACCTL);
2489         macctl &= ~B43_MACCTL_PSM_JMP0;
2490         macctl |= B43_MACCTL_PSM_RUN;
2491         b43_write32(dev, B43_MMIO_MACCTL, macctl);
2492
2493         /* Wait for the microcode to load and respond */
2494         i = 0;
2495         while (1) {
2496                 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2497                 if (tmp == B43_IRQ_MAC_SUSPENDED)
2498                         break;
2499                 i++;
2500                 if (i >= 20) {
2501                         b43err(dev->wl, "Microcode not responding\n");
2502                         b43_print_fw_helptext(dev->wl, 1);
2503                         err = -ENODEV;
2504                         goto error;
2505                 }
2506                 msleep(50);
2507         }
2508         b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);       /* dummy read */
2509
2510         /* Get and check the revisions. */
2511         fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
2512         fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
2513         fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
2514         fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
2515
2516         if (fwrev <= 0x128) {
2517                 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
2518                        "binary drivers older than version 4.x is unsupported. "
2519                        "You must upgrade your firmware files.\n");
2520                 b43_print_fw_helptext(dev->wl, 1);
2521                 err = -EOPNOTSUPP;
2522                 goto error;
2523         }
2524         dev->fw.rev = fwrev;
2525         dev->fw.patch = fwpatch;
2526         if (dev->fw.rev >= 598)
2527                 dev->fw.hdr_format = B43_FW_HDR_598;
2528         else if (dev->fw.rev >= 410)
2529                 dev->fw.hdr_format = B43_FW_HDR_410;
2530         else
2531                 dev->fw.hdr_format = B43_FW_HDR_351;
2532         dev->fw.opensource = (fwdate == 0xFFFF);
2533
2534         /* Default to use-all-queues. */
2535         dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues;
2536         dev->qos_enabled = !!modparam_qos;
2537         /* Default to firmware/hardware crypto acceleration. */
2538         dev->hwcrypto_enabled = true;
2539
2540         if (dev->fw.opensource) {
2541                 u16 fwcapa;
2542
2543                 /* Patchlevel info is encoded in the "time" field. */
2544                 dev->fw.patch = fwtime;
2545                 b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n",
2546                         dev->fw.rev, dev->fw.patch);
2547
2548                 fwcapa = b43_fwcapa_read(dev);
2549                 if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) {
2550                         b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n");
2551                         /* Disable hardware crypto and fall back to software crypto. */
2552                         dev->hwcrypto_enabled = false;
2553                 }
2554                 if (!(fwcapa & B43_FWCAPA_QOS)) {
2555                         b43info(dev->wl, "QoS not supported by firmware\n");
2556                         /* Disable QoS. Tweak hw->queues to 1. It will be restored before
2557                          * ieee80211_unregister to make sure the networking core can
2558                          * properly free possible resources. */
2559                         dev->wl->hw->queues = 1;
2560                         dev->qos_enabled = false;
2561                 }
2562         } else {
2563                 b43info(dev->wl, "Loading firmware version %u.%u "
2564                         "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
2565                         fwrev, fwpatch,
2566                         (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
2567                         (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
2568                 if (dev->fw.pcm_request_failed) {
2569                         b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. "
2570                                 "Hardware accelerated cryptography is disabled.\n");
2571                         b43_print_fw_helptext(dev->wl, 0);
2572                 }
2573         }
2574
2575         snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
2576                         dev->fw.rev, dev->fw.patch);
2577         wiphy->hw_version = dev->dev->core_id;
2578
2579         if (dev->fw.hdr_format == B43_FW_HDR_351) {
2580                 /* We're over the deadline, but we keep support for old fw
2581                  * until it turns out to be in major conflict with something new. */
2582                 b43warn(dev->wl, "You are using an old firmware image. "
2583                         "Support for old firmware will be removed soon "
2584                         "(official deadline was July 2008).\n");
2585                 b43_print_fw_helptext(dev->wl, 0);
2586         }
2587
2588         return 0;
2589
2590 error:
2591         macctl = b43_read32(dev, B43_MMIO_MACCTL);
2592         macctl &= ~B43_MACCTL_PSM_RUN;
2593         macctl |= B43_MACCTL_PSM_JMP0;
2594         b43_write32(dev, B43_MMIO_MACCTL, macctl);
2595
2596         return err;
2597 }
2598
2599 static int b43_write_initvals(struct b43_wldev *dev,
2600                               const struct b43_iv *ivals,
2601                               size_t count,
2602                               size_t array_size)
2603 {
2604         const struct b43_iv *iv;
2605         u16 offset;
2606         size_t i;
2607         bool bit32;
2608
2609         BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
2610         iv = ivals;
2611         for (i = 0; i < count; i++) {
2612                 if (array_size < sizeof(iv->offset_size))
2613                         goto err_format;
2614                 array_size -= sizeof(iv->offset_size);
2615                 offset = be16_to_cpu(iv->offset_size);
2616                 bit32 = !!(offset & B43_IV_32BIT);
2617                 offset &= B43_IV_OFFSET_MASK;
2618                 if (offset >= 0x1000)
2619                         goto err_format;
2620                 if (bit32) {
2621                         u32 value;
2622
2623                         if (array_size < sizeof(iv->data.d32))
2624                                 goto err_format;
2625                         array_size -= sizeof(iv->data.d32);
2626
2627                         value = get_unaligned_be32(&iv->data.d32);
2628                         b43_write32(dev, offset, value);
2629
2630                         iv = (const struct b43_iv *)((const uint8_t *)iv +
2631                                                         sizeof(__be16) +
2632                                                         sizeof(__be32));
2633                 } else {
2634                         u16 value;
2635
2636                         if (array_size < sizeof(iv->data.d16))
2637                                 goto err_format;
2638                         array_size -= sizeof(iv->data.d16);
2639
2640                         value = be16_to_cpu(iv->data.d16);
2641                         b43_write16(dev, offset, value);
2642
2643                         iv = (const struct b43_iv *)((const uint8_t *)iv +
2644                                                         sizeof(__be16) +
2645                                                         sizeof(__be16));
2646                 }
2647         }
2648         if (array_size)
2649                 goto err_format;
2650
2651         return 0;
2652
2653 err_format:
2654         b43err(dev->wl, "Initial Values Firmware file-format error.\n");
2655         b43_print_fw_helptext(dev->wl, 1);
2656
2657         return -EPROTO;
2658 }
2659
2660 static int b43_upload_initvals(struct b43_wldev *dev)
2661 {
2662         const size_t hdr_len = sizeof(struct b43_fw_header);
2663         const struct b43_fw_header *hdr;
2664         struct b43_firmware *fw = &dev->fw;
2665         const struct b43_iv *ivals;
2666         size_t count;
2667         int err;
2668
2669         hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
2670         ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
2671         count = be32_to_cpu(hdr->size);
2672         err = b43_write_initvals(dev, ivals, count,
2673                                  fw->initvals.data->size - hdr_len);
2674         if (err)
2675                 goto out;
2676         if (fw->initvals_band.data) {
2677                 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
2678                 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
2679                 count = be32_to_cpu(hdr->size);
2680                 err = b43_write_initvals(dev, ivals, count,
2681                                          fw->initvals_band.data->size - hdr_len);
2682                 if (err)
2683                         goto out;
2684         }
2685 out:
2686
2687         return err;
2688 }
2689
2690 /* Initialize the GPIOs
2691  * http://bcm-specs.sipsolutions.net/GPIO
2692  */
2693 static struct ssb_device *b43_ssb_gpio_dev(struct b43_wldev *dev)
2694 {
2695         struct ssb_bus *bus = dev->dev->sdev->bus;
2696
2697 #ifdef CONFIG_SSB_DRIVER_PCICORE
2698         return (bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev);
2699 #else
2700         return bus->chipco.dev;
2701 #endif
2702 }
2703
2704 static int b43_gpio_init(struct b43_wldev *dev)
2705 {
2706         struct ssb_device *gpiodev;
2707         u32 mask, set;
2708
2709         b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2710                     & ~B43_MACCTL_GPOUTSMSK);
2711
2712         b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
2713                     | 0x000F);
2714
2715         mask = 0x0000001F;
2716         set = 0x0000000F;
2717         if (dev->dev->chip_id == 0x4301) {
2718                 mask |= 0x0060;
2719                 set |= 0x0060;
2720         }
2721         if (0 /* FIXME: conditional unknown */ ) {
2722                 b43_write16(dev, B43_MMIO_GPIO_MASK,
2723                             b43_read16(dev, B43_MMIO_GPIO_MASK)
2724                             | 0x0100);
2725                 mask |= 0x0180;
2726                 set |= 0x0180;
2727         }
2728         if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) {
2729                 b43_write16(dev, B43_MMIO_GPIO_MASK,
2730                             b43_read16(dev, B43_MMIO_GPIO_MASK)
2731                             | 0x0200);
2732                 mask |= 0x0200;
2733                 set |= 0x0200;
2734         }
2735         if (dev->dev->core_rev >= 2)
2736                 mask |= 0x0010; /* FIXME: This is redundant. */
2737
2738         switch (dev->dev->bus_type) {
2739 #ifdef CONFIG_B43_BCMA
2740         case B43_BUS_BCMA:
2741                 bcma_cc_write32(&dev->dev->bdev->bus->drv_cc, BCMA_CC_GPIOCTL,
2742                                 (bcma_cc_read32(&dev->dev->bdev->bus->drv_cc,
2743                                         BCMA_CC_GPIOCTL) & mask) | set);
2744                 break;
2745 #endif
2746 #ifdef CONFIG_B43_SSB
2747         case B43_BUS_SSB:
2748                 gpiodev = b43_ssb_gpio_dev(dev);
2749                 if (gpiodev)
2750                         ssb_write32(gpiodev, B43_GPIO_CONTROL,
2751                                     (ssb_read32(gpiodev, B43_GPIO_CONTROL)
2752                                     & mask) | set);
2753                 break;
2754 #endif
2755         }
2756
2757         return 0;
2758 }
2759
2760 /* Turn off all GPIO stuff. Call this on module unload, for example. */
2761 static void b43_gpio_cleanup(struct b43_wldev *dev)
2762 {
2763         struct ssb_device *gpiodev;
2764
2765         switch (dev->dev->bus_type) {
2766 #ifdef CONFIG_B43_BCMA
2767         case B43_BUS_BCMA:
2768                 bcma_cc_write32(&dev->dev->bdev->bus->drv_cc, BCMA_CC_GPIOCTL,
2769                                 0);
2770                 break;
2771 #endif
2772 #ifdef CONFIG_B43_SSB
2773         case B43_BUS_SSB:
2774                 gpiodev = b43_ssb_gpio_dev(dev);
2775                 if (gpiodev)
2776                         ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
2777                 break;
2778 #endif
2779         }
2780 }
2781
2782 /* http://bcm-specs.sipsolutions.net/EnableMac */
2783 void b43_mac_enable(struct b43_wldev *dev)
2784 {
2785         if (b43_debug(dev, B43_DBG_FIRMWARE)) {
2786                 u16 fwstate;
2787
2788                 fwstate = b43_shm_read16(dev, B43_SHM_SHARED,
2789                                          B43_SHM_SH_UCODESTAT);
2790                 if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) &&
2791                     (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) {
2792                         b43err(dev->wl, "b43_mac_enable(): The firmware "
2793                                "should be suspended, but current state is %u\n",
2794                                fwstate);
2795                 }
2796         }
2797
2798         dev->mac_suspended--;
2799         B43_WARN_ON(dev->mac_suspended < 0);
2800         if (dev->mac_suspended == 0) {
2801                 b43_write32(dev, B43_MMIO_MACCTL,
2802                             b43_read32(dev, B43_MMIO_MACCTL)
2803                             | B43_MACCTL_ENABLED);
2804                 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
2805                             B43_IRQ_MAC_SUSPENDED);
2806                 /* Commit writes */
2807                 b43_read32(dev, B43_MMIO_MACCTL);
2808                 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2809                 b43_power_saving_ctl_bits(dev, 0);
2810         }
2811 }
2812
2813 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
2814 void b43_mac_suspend(struct b43_wldev *dev)
2815 {
2816         int i;
2817         u32 tmp;
2818
2819         might_sleep();
2820         B43_WARN_ON(dev->mac_suspended < 0);
2821
2822         if (dev->mac_suspended == 0) {
2823                 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
2824                 b43_write32(dev, B43_MMIO_MACCTL,
2825                             b43_read32(dev, B43_MMIO_MACCTL)
2826                             & ~B43_MACCTL_ENABLED);
2827                 /* force pci to flush the write */
2828                 b43_read32(dev, B43_MMIO_MACCTL);
2829                 for (i = 35; i; i--) {
2830                         tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2831                         if (tmp & B43_IRQ_MAC_SUSPENDED)
2832                                 goto out;
2833                         udelay(10);
2834                 }
2835                 /* Hm, it seems this will take some time. Use msleep(). */
2836                 for (i = 40; i; i--) {
2837                         tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2838                         if (tmp & B43_IRQ_MAC_SUSPENDED)
2839                                 goto out;
2840                         msleep(1);
2841                 }
2842                 b43err(dev->wl, "MAC suspend failed\n");
2843         }
2844 out:
2845         dev->mac_suspended++;
2846 }
2847
2848 /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/MacPhyClkSet */
2849 void b43_mac_phy_clock_set(struct b43_wldev *dev, bool on)
2850 {
2851         u32 tmp;
2852
2853         switch (dev->dev->bus_type) {
2854 #ifdef CONFIG_B43_BCMA
2855         case B43_BUS_BCMA:
2856                 tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
2857                 if (on)
2858                         tmp |= B43_BCMA_IOCTL_MACPHYCLKEN;
2859                 else
2860                         tmp &= ~B43_BCMA_IOCTL_MACPHYCLKEN;
2861                 bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
2862                 break;
2863 #endif
2864 #ifdef CONFIG_B43_SSB
2865         case B43_BUS_SSB:
2866                 tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
2867                 if (on)
2868                         tmp |= B43_TMSLOW_MACPHYCLKEN;
2869                 else
2870                         tmp &= ~B43_TMSLOW_MACPHYCLKEN;
2871                 ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
2872                 break;
2873 #endif
2874         }
2875 }
2876
2877 static void b43_adjust_opmode(struct b43_wldev *dev)
2878 {
2879         struct b43_wl *wl = dev->wl;
2880         u32 ctl;
2881         u16 cfp_pretbtt;
2882
2883         ctl = b43_read32(dev, B43_MMIO_MACCTL);
2884         /* Reset status to STA infrastructure mode. */
2885         ctl &= ~B43_MACCTL_AP;
2886         ctl &= ~B43_MACCTL_KEEP_CTL;
2887         ctl &= ~B43_MACCTL_KEEP_BADPLCP;
2888         ctl &= ~B43_MACCTL_KEEP_BAD;
2889         ctl &= ~B43_MACCTL_PROMISC;
2890         ctl &= ~B43_MACCTL_BEACPROMISC;
2891         ctl |= B43_MACCTL_INFRA;
2892
2893         if (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
2894             b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
2895                 ctl |= B43_MACCTL_AP;
2896         else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC))
2897                 ctl &= ~B43_MACCTL_INFRA;
2898
2899         if (wl->filter_flags & FIF_CONTROL)
2900                 ctl |= B43_MACCTL_KEEP_CTL;
2901         if (wl->filter_flags & FIF_FCSFAIL)
2902                 ctl |= B43_MACCTL_KEEP_BAD;
2903         if (wl->filter_flags & FIF_PLCPFAIL)
2904                 ctl |= B43_MACCTL_KEEP_BADPLCP;
2905         if (wl->filter_flags & FIF_PROMISC_IN_BSS)
2906                 ctl |= B43_MACCTL_PROMISC;
2907         if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2908                 ctl |= B43_MACCTL_BEACPROMISC;
2909
2910         /* Workaround: On old hardware the HW-MAC-address-filter
2911          * doesn't work properly, so always run promisc in filter
2912          * it in software. */
2913         if (dev->dev->core_rev <= 4)
2914                 ctl |= B43_MACCTL_PROMISC;
2915
2916         b43_write32(dev, B43_MMIO_MACCTL, ctl);
2917
2918         cfp_pretbtt = 2;
2919         if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
2920                 if (dev->dev->chip_id == 0x4306 &&
2921                     dev->dev->chip_rev == 3)
2922                         cfp_pretbtt = 100;
2923                 else
2924                         cfp_pretbtt = 50;
2925         }
2926         b43_write16(dev, 0x612, cfp_pretbtt);
2927
2928         /* FIXME: We don't currently implement the PMQ mechanism,
2929          *        so always disable it. If we want to implement PMQ,
2930          *        we need to enable it here (clear DISCPMQ) in AP mode.
2931          */
2932         if (0  /* ctl & B43_MACCTL_AP */) {
2933                 b43_write32(dev, B43_MMIO_MACCTL,
2934                             b43_read32(dev, B43_MMIO_MACCTL)
2935                             & ~B43_MACCTL_DISCPMQ);
2936         } else {
2937                 b43_write32(dev, B43_MMIO_MACCTL,
2938                             b43_read32(dev, B43_MMIO_MACCTL)
2939                             | B43_MACCTL_DISCPMQ);
2940         }
2941 }
2942
2943 static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
2944 {
2945         u16 offset;
2946
2947         if (is_ofdm) {
2948                 offset = 0x480;
2949                 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2950         } else {
2951                 offset = 0x4C0;
2952                 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2953         }
2954         b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
2955                         b43_shm_read16(dev, B43_SHM_SHARED, offset));
2956 }
2957
2958 static void b43_rate_memory_init(struct b43_wldev *dev)
2959 {
2960         switch (dev->phy.type) {
2961         case B43_PHYTYPE_A:
2962         case B43_PHYTYPE_G:
2963         case B43_PHYTYPE_N:
2964         case B43_PHYTYPE_LP:
2965         case B43_PHYTYPE_HT:
2966         case B43_PHYTYPE_LCN:
2967                 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
2968                 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
2969                 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
2970                 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
2971                 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
2972                 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
2973                 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
2974                 if (dev->phy.type == B43_PHYTYPE_A)
2975                         break;
2976                 /* fallthrough */
2977         case B43_PHYTYPE_B:
2978                 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
2979                 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
2980                 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
2981                 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
2982                 break;
2983         default:
2984                 B43_WARN_ON(1);
2985         }
2986 }
2987
2988 /* Set the default values for the PHY TX Control Words. */
2989 static void b43_set_phytxctl_defaults(struct b43_wldev *dev)
2990 {
2991         u16 ctl = 0;
2992
2993         ctl |= B43_TXH_PHY_ENC_CCK;
2994         ctl |= B43_TXH_PHY_ANT01AUTO;
2995         ctl |= B43_TXH_PHY_TXPWR;
2996
2997         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
2998         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl);
2999         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl);
3000 }
3001
3002 /* Set the TX-Antenna for management frames sent by firmware. */
3003 static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
3004 {
3005         u16 ant;
3006         u16 tmp;
3007
3008         ant = b43_antenna_to_phyctl(antenna);
3009
3010         /* For ACK/CTS */
3011         tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
3012         tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
3013         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
3014         /* For Probe Resposes */
3015         tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
3016         tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
3017         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
3018 }
3019
3020 /* This is the opposite of b43_chip_init() */
3021 static void b43_chip_exit(struct b43_wldev *dev)
3022 {
3023         b43_phy_exit(dev);
3024         b43_gpio_cleanup(dev);
3025         /* firmware is released later */
3026 }
3027
3028 /* Initialize the chip
3029  * http://bcm-specs.sipsolutions.net/ChipInit
3030  */
3031 static int b43_chip_init(struct b43_wldev *dev)
3032 {
3033         struct b43_phy *phy = &dev->phy;
3034         int err;
3035         u32 macctl;
3036         u16 value16;
3037
3038         /* Initialize the MAC control */
3039         macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
3040         if (dev->phy.gmode)
3041                 macctl |= B43_MACCTL_GMODE;
3042         macctl |= B43_MACCTL_INFRA;
3043         b43_write32(dev, B43_MMIO_MACCTL, macctl);
3044
3045         err = b43_request_firmware(dev);
3046         if (err)
3047                 goto out;
3048         err = b43_upload_microcode(dev);
3049         if (err)
3050                 goto out;       /* firmware is released later */
3051
3052         err = b43_gpio_init(dev);
3053         if (err)
3054                 goto out;       /* firmware is released later */
3055
3056         err = b43_upload_initvals(dev);
3057         if (err)
3058                 goto err_gpio_clean;
3059
3060         /* Turn the Analog on and initialize the PHY. */
3061         phy->ops->switch_analog(dev, 1);
3062         err = b43_phy_init(dev);
3063         if (err)
3064                 goto err_gpio_clean;
3065
3066         /* Disable Interference Mitigation. */
3067         if (phy->ops->interf_mitigation)
3068                 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
3069
3070         /* Select the antennae */
3071         if (phy->ops->set_rx_antenna)
3072                 phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
3073         b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
3074
3075         if (phy->type == B43_PHYTYPE_B) {
3076                 value16 = b43_read16(dev, 0x005E);
3077                 value16 |= 0x0004;
3078                 b43_write16(dev, 0x005E, value16);
3079         }
3080         b43_write32(dev, 0x0100, 0x01000000);
3081         if (dev->dev->core_rev < 5)
3082                 b43_write32(dev, 0x010C, 0x01000000);
3083
3084         b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
3085                     & ~B43_MACCTL_INFRA);
3086         b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
3087                     | B43_MACCTL_INFRA);
3088
3089         /* Probe Response Timeout value */
3090         /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
3091         b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
3092
3093         /* Initially set the wireless operation mode. */
3094         b43_adjust_opmode(dev);
3095
3096         if (dev->dev->core_rev < 3) {
3097                 b43_write16(dev, 0x060E, 0x0000);
3098                 b43_write16(dev, 0x0610, 0x8000);
3099                 b43_write16(dev, 0x0604, 0x0000);
3100                 b43_write16(dev, 0x0606, 0x0200);
3101         } else {
3102                 b43_write32(dev, 0x0188, 0x80000000);
3103                 b43_write32(dev, 0x018C, 0x02000000);
3104         }
3105         b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
3106         b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
3107         b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
3108         b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
3109         b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
3110         b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
3111         b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
3112
3113         b43_mac_phy_clock_set(dev, true);
3114
3115         switch (dev->dev->bus_type) {
3116 #ifdef CONFIG_B43_BCMA
3117         case B43_BUS_BCMA:
3118                 /* FIXME: 0xE74 is quite common, but should be read from CC */
3119                 b43_write16(dev, B43_MMIO_POWERUP_DELAY, 0xE74);
3120                 break;
3121 #endif
3122 #ifdef CONFIG_B43_SSB
3123         case B43_BUS_SSB:
3124                 b43_write16(dev, B43_MMIO_POWERUP_DELAY,
3125                             dev->dev->sdev->bus->chipco.fast_pwrup_delay);
3126                 break;
3127 #endif
3128         }
3129
3130         err = 0;
3131         b43dbg(dev->wl, "Chip initialized\n");
3132 out:
3133         return err;
3134
3135 err_gpio_clean:
3136         b43_gpio_cleanup(dev);
3137         return err;
3138 }
3139
3140 static void b43_periodic_every60sec(struct b43_wldev *dev)
3141 {
3142         const struct b43_phy_operations *ops = dev->phy.ops;
3143
3144         if (ops->pwork_60sec)
3145                 ops->pwork_60sec(dev);
3146
3147         /* Force check the TX power emission now. */
3148         b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME);
3149 }
3150
3151 static void b43_periodic_every30sec(struct b43_wldev *dev)
3152 {
3153         /* Update device statistics. */
3154         b43_calculate_link_quality(dev);
3155 }
3156
3157 static void b43_periodic_every15sec(struct b43_wldev *dev)
3158 {
3159         struct b43_phy *phy = &dev->phy;
3160         u16 wdr;
3161
3162         if (dev->fw.opensource) {
3163                 /* Check if the firmware is still alive.
3164                  * It will reset the watchdog counter to 0 in its idle loop. */
3165                 wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG);
3166                 if (unlikely(wdr)) {
3167                         b43err(dev->wl, "Firmware watchdog: The firmware died!\n");
3168                         b43_controller_restart(dev, "Firmware watchdog");
3169                         return;
3170                 } else {
3171                         b43_shm_write16(dev, B43_SHM_SCRATCH,
3172                                         B43_WATCHDOG_REG, 1);
3173                 }
3174         }
3175
3176         if (phy->ops->pwork_15sec)
3177                 phy->ops->pwork_15sec(dev);
3178
3179         atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
3180         wmb();
3181
3182 #if B43_DEBUG
3183         if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
3184                 unsigned int i;
3185
3186                 b43dbg(dev->wl, "Stats: %7u IRQs/sec, %7u TX/sec, %7u RX/sec\n",
3187                        dev->irq_count / 15,
3188                        dev->tx_count / 15,
3189                        dev->rx_count / 15);
3190                 dev->irq_count = 0;
3191                 dev->tx_count = 0;
3192                 dev->rx_count = 0;
3193                 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
3194                         if (dev->irq_bit_count[i]) {
3195                                 b43dbg(dev->wl, "Stats: %7u IRQ-%02u/sec (0x%08X)\n",
3196                                        dev->irq_bit_count[i] / 15, i, (1 << i));
3197                                 dev->irq_bit_count[i] = 0;
3198                         }
3199                 }
3200         }
3201 #endif
3202 }
3203
3204 static void do_periodic_work(struct b43_wldev *dev)
3205 {
3206         unsigned int state;
3207
3208         state = dev->periodic_state;
3209         if (state % 4 == 0)
3210                 b43_periodic_every60sec(dev);
3211         if (state % 2 == 0)
3212                 b43_periodic_every30sec(dev);
3213         b43_periodic_every15sec(dev);
3214 }
3215
3216 /* Periodic work locking policy:
3217  *      The whole periodic work handler is protected by
3218  *      wl->mutex. If another lock is needed somewhere in the
3219  *      pwork callchain, it's acquired in-place, where it's needed.
3220  */
3221 static void b43_periodic_work_handler(struct work_struct *work)
3222 {
3223         struct b43_wldev *dev = container_of(work, struct b43_wldev,
3224                                              periodic_work.work);
3225         struct b43_wl *wl = dev->wl;
3226         unsigned long delay;
3227
3228         mutex_lock(&wl->mutex);
3229
3230         if (unlikely(b43_status(dev) != B43_STAT_STARTED))
3231                 goto out;
3232         if (b43_debug(dev, B43_DBG_PWORK_STOP))
3233                 goto out_requeue;
3234
3235         do_periodic_work(dev);
3236
3237         dev->periodic_state++;
3238 out_requeue:
3239         if (b43_debug(dev, B43_DBG_PWORK_FAST))
3240                 delay = msecs_to_jiffies(50);
3241         else
3242                 delay = round_jiffies_relative(HZ * 15);
3243         ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay);
3244 out:
3245         mutex_unlock(&wl->mutex);
3246 }
3247
3248 static void b43_periodic_tasks_setup(struct b43_wldev *dev)
3249 {
3250         struct delayed_work *work = &dev->periodic_work;
3251
3252         dev->periodic_state = 0;
3253         INIT_DELAYED_WORK(work, b43_periodic_work_handler);
3254         ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
3255 }
3256
3257 /* Check if communication with the device works correctly. */
3258 static int b43_validate_chipaccess(struct b43_wldev *dev)
3259 {
3260         u32 v, backup0, backup4;
3261
3262         backup0 = b43_shm_read32(dev, B43_SHM_SHARED, 0);
3263         backup4 = b43_shm_read32(dev, B43_SHM_SHARED, 4);
3264
3265         /* Check for read/write and endianness problems. */
3266         b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
3267         if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
3268                 goto error;
3269         b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
3270         if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
3271                 goto error;
3272
3273         /* Check if unaligned 32bit SHM_SHARED access works properly.
3274          * However, don't bail out on failure, because it's noncritical. */
3275         b43_shm_write16(dev, B43_SHM_SHARED, 0, 0x1122);
3276         b43_shm_write16(dev, B43_SHM_SHARED, 2, 0x3344);
3277         b43_shm_write16(dev, B43_SHM_SHARED, 4, 0x5566);
3278         b43_shm_write16(dev, B43_SHM_SHARED, 6, 0x7788);
3279         if (b43_shm_read32(dev, B43_SHM_SHARED, 2) != 0x55663344)
3280                 b43warn(dev->wl, "Unaligned 32bit SHM read access is broken\n");
3281         b43_shm_write32(dev, B43_SHM_SHARED, 2, 0xAABBCCDD);
3282         if (b43_shm_read16(dev, B43_SHM_SHARED, 0) != 0x1122 ||
3283             b43_shm_read16(dev, B43_SHM_SHARED, 2) != 0xCCDD ||
3284             b43_shm_read16(dev, B43_SHM_SHARED, 4) != 0xAABB ||
3285             b43_shm_read16(dev, B43_SHM_SHARED, 6) != 0x7788)
3286                 b43warn(dev->wl, "Unaligned 32bit SHM write access is broken\n");
3287
3288         b43_shm_write32(dev, B43_SHM_SHARED, 0, backup0);
3289         b43_shm_write32(dev, B43_SHM_SHARED, 4, backup4);
3290
3291         if ((dev->dev->core_rev >= 3) && (dev->dev->core_rev <= 10)) {
3292                 /* The 32bit register shadows the two 16bit registers
3293                  * with update sideeffects. Validate this. */
3294                 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
3295                 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
3296                 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
3297                         goto error;
3298                 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
3299                         goto error;
3300         }
3301         b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
3302
3303         v = b43_read32(dev, B43_MMIO_MACCTL);
3304         v |= B43_MACCTL_GMODE;
3305         if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
3306                 goto error;
3307
3308         return 0;
3309 error:
3310         b43err(dev->wl, "Failed to validate the chipaccess\n");
3311         return -ENODEV;
3312 }
3313
3314 static void b43_security_init(struct b43_wldev *dev)
3315 {
3316         dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
3317         /* KTP is a word address, but we address SHM bytewise.
3318          * So multiply by two.
3319          */
3320         dev->ktp *= 2;
3321         /* Number of RCMTA address slots */
3322         b43_write16(dev, B43_MMIO_RCMTA_COUNT, B43_NR_PAIRWISE_KEYS);
3323         /* Clear the key memory. */
3324         b43_clear_keys(dev);
3325 }
3326
3327 #ifdef CONFIG_B43_HWRNG
3328 static int b43_rng_read(struct hwrng *rng, u32 *data)
3329 {
3330         struct b43_wl *wl = (struct b43_wl *)rng->priv;
3331         struct b43_wldev *dev;
3332         int count = -ENODEV;
3333
3334         mutex_lock(&wl->mutex);
3335         dev = wl->current_dev;
3336         if (likely(dev && b43_status(dev) >= B43_STAT_INITIALIZED)) {
3337                 *data = b43_read16(dev, B43_MMIO_RNG);
3338                 count = sizeof(u16);
3339         }
3340         mutex_unlock(&wl->mutex);
3341
3342         return count;
3343 }
3344 #endif /* CONFIG_B43_HWRNG */
3345
3346 static void b43_rng_exit(struct b43_wl *wl)
3347 {
3348 #ifdef CONFIG_B43_HWRNG
3349         if (wl->rng_initialized)
3350                 hwrng_unregister(&wl->rng);
3351 #endif /* CONFIG_B43_HWRNG */
3352 }
3353
3354 static int b43_rng_init(struct b43_wl *wl)
3355 {
3356         int err = 0;
3357
3358 #ifdef CONFIG_B43_HWRNG
3359         snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
3360                  "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
3361         wl->rng.name = wl->rng_name;
3362         wl->rng.data_read = b43_rng_read;
3363         wl->rng.priv = (unsigned long)wl;
3364         wl->rng_initialized = true;
3365         err = hwrng_register(&wl->rng);
3366         if (err) {
3367                 wl->rng_initialized = false;
3368                 b43err(wl, "Failed to register the random "
3369                        "number generator (%d)\n", err);
3370         }
3371 #endif /* CONFIG_B43_HWRNG */
3372
3373         return err;
3374 }
3375
3376 static void b43_tx_work(struct work_struct *work)
3377 {
3378         struct b43_wl *wl = container_of(work, struct b43_wl, tx_work);
3379         struct b43_wldev *dev;
3380         struct sk_buff *skb;
3381         int queue_num;
3382         int err = 0;
3383
3384         mutex_lock(&wl->mutex);
3385         dev = wl->current_dev;
3386         if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED)) {
3387                 mutex_unlock(&wl->mutex);
3388                 return;
3389         }
3390
3391         for (queue_num = 0; queue_num < B43_QOS_QUEUE_NUM; queue_num++) {
3392                 while (skb_queue_len(&wl->tx_queue[queue_num])) {
3393                         skb = skb_dequeue(&wl->tx_queue[queue_num]);
3394                         if (b43_using_pio_transfers(dev))
3395                                 err = b43_pio_tx(dev, skb);
3396                         else
3397                                 err = b43_dma_tx(dev, skb);
3398                         if (err == -ENOSPC) {
3399                                 wl->tx_queue_stopped[queue_num] = 1;
3400                                 ieee80211_stop_queue(wl->hw, queue_num);
3401                                 skb_queue_head(&wl->tx_queue[queue_num], skb);
3402                                 break;
3403                         }
3404                         if (unlikely(err))
3405                                 dev_kfree_skb(skb); /* Drop it */
3406                         err = 0;
3407                 }
3408
3409                 if (!err)
3410                         wl->tx_queue_stopped[queue_num] = 0;
3411         }
3412
3413 #if B43_DEBUG
3414         dev->tx_count++;
3415 #endif
3416         mutex_unlock(&wl->mutex);
3417 }
3418
3419 static void b43_op_tx(struct ieee80211_hw *hw,
3420                      struct sk_buff *skb)
3421 {
3422         struct b43_wl *wl = hw_to_b43_wl(hw);
3423
3424         if (unlikely(skb->len < 2 + 2 + 6)) {
3425                 /* Too short, this can't be a valid frame. */
3426                 dev_kfree_skb_any(skb);
3427                 return;
3428         }
3429         B43_WARN_ON(skb_shinfo(skb)->nr_frags);
3430
3431         skb_queue_tail(&wl->tx_queue[skb->queue_mapping], skb);
3432         if (!wl->tx_queue_stopped[skb->queue_mapping]) {
3433                 ieee80211_queue_work(wl->hw, &wl->tx_work);
3434         } else {
3435                 ieee80211_stop_queue(wl->hw, skb->queue_mapping);
3436         }
3437 }
3438
3439 static void b43_qos_params_upload(struct b43_wldev *dev,
3440                                   const struct ieee80211_tx_queue_params *p,
3441                                   u16 shm_offset)
3442 {
3443         u16 params[B43_NR_QOSPARAMS];
3444         int bslots, tmp;
3445         unsigned int i;
3446
3447         if (!dev->qos_enabled)
3448                 return;
3449
3450         bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min;
3451
3452         memset(&params, 0, sizeof(params));
3453
3454         params[B43_QOSPARAM_TXOP] = p->txop * 32;
3455         params[B43_QOSPARAM_CWMIN] = p->cw_min;
3456         params[B43_QOSPARAM_CWMAX] = p->cw_max;
3457         params[B43_QOSPARAM_CWCUR] = p->cw_min;
3458         params[B43_QOSPARAM_AIFS] = p->aifs;
3459         params[B43_QOSPARAM_BSLOTS] = bslots;
3460         params[B43_QOSPARAM_REGGAP] = bslots + p->aifs;
3461
3462         for (i = 0; i < ARRAY_SIZE(params); i++) {
3463                 if (i == B43_QOSPARAM_STATUS) {
3464                         tmp = b43_shm_read16(dev, B43_SHM_SHARED,
3465                                              shm_offset + (i * 2));
3466                         /* Mark the parameters as updated. */
3467                         tmp |= 0x100;
3468                         b43_shm_write16(dev, B43_SHM_SHARED,
3469                                         shm_offset + (i * 2),
3470                                         tmp);
3471                 } else {
3472                         b43_shm_write16(dev, B43_SHM_SHARED,
3473                                         shm_offset + (i * 2),
3474                                         params[i]);
3475                 }
3476         }
3477 }
3478
3479 /* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */
3480 static const u16 b43_qos_shm_offsets[] = {
3481         /* [mac80211-queue-nr] = SHM_OFFSET, */
3482         [0] = B43_QOS_VOICE,
3483         [1] = B43_QOS_VIDEO,
3484         [2] = B43_QOS_BESTEFFORT,
3485         [3] = B43_QOS_BACKGROUND,
3486 };
3487
3488 /* Update all QOS parameters in hardware. */
3489 static void b43_qos_upload_all(struct b43_wldev *dev)
3490 {
3491         struct b43_wl *wl = dev->wl;
3492         struct b43_qos_params *params;
3493         unsigned int i;
3494
3495         if (!dev->qos_enabled)
3496                 return;
3497
3498         BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3499                      ARRAY_SIZE(wl->qos_params));
3500
3501         b43_mac_suspend(dev);
3502         for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3503                 params = &(wl->qos_params[i]);
3504                 b43_qos_params_upload(dev, &(params->p),
3505                                       b43_qos_shm_offsets[i]);
3506         }
3507         b43_mac_enable(dev);
3508 }
3509
3510 static void b43_qos_clear(struct b43_wl *wl)
3511 {
3512         struct b43_qos_params *params;
3513         unsigned int i;
3514
3515         /* Initialize QoS parameters to sane defaults. */
3516
3517         BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3518                      ARRAY_SIZE(wl->qos_params));
3519
3520         for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3521                 params = &(wl->qos_params[i]);
3522
3523                 switch (b43_qos_shm_offsets[i]) {
3524                 case B43_QOS_VOICE:
3525                         params->p.txop = 0;
3526                         params->p.aifs = 2;
3527                         params->p.cw_min = 0x0001;
3528                         params->p.cw_max = 0x0001;
3529                         break;
3530                 case B43_QOS_VIDEO:
3531                         params->p.txop = 0;
3532                         params->p.aifs = 2;
3533                         params->p.cw_min = 0x0001;
3534                         params->p.cw_max = 0x0001;
3535                         break;
3536                 case B43_QOS_BESTEFFORT:
3537                         params->p.txop = 0;
3538                         params->p.aifs = 3;
3539                         params->p.cw_min = 0x0001;
3540                         params->p.cw_max = 0x03FF;
3541                         break;
3542                 case B43_QOS_BACKGROUND:
3543                         params->p.txop = 0;
3544                         params->p.aifs = 7;
3545                         params->p.cw_min = 0x0001;
3546                         params->p.cw_max = 0x03FF;
3547                         break;
3548                 default:
3549                         B43_WARN_ON(1);
3550                 }
3551         }
3552 }
3553
3554 /* Initialize the core's QOS capabilities */
3555 static void b43_qos_init(struct b43_wldev *dev)
3556 {
3557         if (!dev->qos_enabled) {
3558                 /* Disable QOS support. */
3559                 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_EDCF);
3560                 b43_write16(dev, B43_MMIO_IFSCTL,
3561                             b43_read16(dev, B43_MMIO_IFSCTL)
3562                             & ~B43_MMIO_IFSCTL_USE_EDCF);
3563                 b43dbg(dev->wl, "QoS disabled\n");
3564                 return;
3565         }
3566
3567         /* Upload the current QOS parameters. */
3568         b43_qos_upload_all(dev);
3569
3570         /* Enable QOS support. */
3571         b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
3572         b43_write16(dev, B43_MMIO_IFSCTL,
3573                     b43_read16(dev, B43_MMIO_IFSCTL)
3574                     | B43_MMIO_IFSCTL_USE_EDCF);
3575         b43dbg(dev->wl, "QoS enabled\n");
3576 }
3577
3578 static int b43_op_conf_tx(struct ieee80211_hw *hw,
3579                           struct ieee80211_vif *vif, u16 _queue,
3580                           const struct ieee80211_tx_queue_params *params)
3581 {
3582         struct b43_wl *wl = hw_to_b43_wl(hw);
3583         struct b43_wldev *dev;
3584         unsigned int queue = (unsigned int)_queue;
3585         int err = -ENODEV;
3586
3587         if (queue >= ARRAY_SIZE(wl->qos_params)) {
3588                 /* Queue not available or don't support setting
3589                  * params on this queue. Return success to not
3590                  * confuse mac80211. */
3591                 return 0;
3592         }
3593         BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3594                      ARRAY_SIZE(wl->qos_params));
3595
3596         mutex_lock(&wl->mutex);
3597         dev = wl->current_dev;
3598         if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED)))
3599                 goto out_unlock;
3600
3601         memcpy(&(wl->qos_params[queue].p), params, sizeof(*params));
3602         b43_mac_suspend(dev);
3603         b43_qos_params_upload(dev, &(wl->qos_params[queue].p),
3604                               b43_qos_shm_offsets[queue]);
3605         b43_mac_enable(dev);
3606         err = 0;
3607
3608 out_unlock:
3609         mutex_unlock(&wl->mutex);
3610
3611         return err;
3612 }
3613
3614 static int b43_op_get_stats(struct ieee80211_hw *hw,
3615                             struct ieee80211_low_level_stats *stats)
3616 {
3617         struct b43_wl *wl = hw_to_b43_wl(hw);
3618
3619         mutex_lock(&wl->mutex);
3620         memcpy(stats, &wl->ieee_stats, sizeof(*stats));
3621         mutex_unlock(&wl->mutex);
3622
3623         return 0;
3624 }
3625
3626 static u64 b43_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
3627 {
3628         struct b43_wl *wl = hw_to_b43_wl(hw);
3629         struct b43_wldev *dev;
3630         u64 tsf;
3631
3632         mutex_lock(&wl->mutex);
3633         dev = wl->current_dev;
3634
3635         if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3636                 b43_tsf_read(dev, &tsf);
3637         else
3638                 tsf = 0;
3639
3640         mutex_unlock(&wl->mutex);
3641
3642         return tsf;
3643 }
3644
3645 static void b43_op_set_tsf(struct ieee80211_hw *hw,
3646                            struct ieee80211_vif *vif, u64 tsf)
3647 {
3648         struct b43_wl *wl = hw_to_b43_wl(hw);
3649         struct b43_wldev *dev;
3650
3651         mutex_lock(&wl->mutex);
3652         dev = wl->current_dev;
3653
3654         if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3655                 b43_tsf_write(dev, tsf);
3656
3657         mutex_unlock(&wl->mutex);
3658 }
3659
3660 static void b43_put_phy_into_reset(struct b43_wldev *dev)
3661 {
3662         u32 tmp;
3663
3664         switch (dev->dev->bus_type) {
3665 #ifdef CONFIG_B43_BCMA
3666         case B43_BUS_BCMA:
3667                 b43err(dev->wl,
3668                        "Putting PHY into reset not supported on BCMA\n");
3669                 break;
3670 #endif
3671 #ifdef CONFIG_B43_SSB
3672         case B43_BUS_SSB:
3673                 tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
3674                 tmp &= ~B43_TMSLOW_GMODE;
3675                 tmp |= B43_TMSLOW_PHYRESET;
3676                 tmp |= SSB_TMSLOW_FGC;
3677                 ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
3678                 msleep(1);
3679
3680                 tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
3681                 tmp &= ~SSB_TMSLOW_FGC;
3682                 tmp |= B43_TMSLOW_PHYRESET;
3683                 ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
3684                 msleep(1);
3685
3686                 break;
3687 #endif
3688         }
3689 }
3690
3691 static const char *band_to_string(enum ieee80211_band band)
3692 {
3693         switch (band) {
3694         case IEEE80211_BAND_5GHZ:
3695                 return "5";
3696         case IEEE80211_BAND_2GHZ:
3697                 return "2.4";
3698         default:
3699                 break;
3700         }
3701         B43_WARN_ON(1);
3702         return "";
3703 }
3704
3705 /* Expects wl->mutex locked */
3706 static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
3707 {
3708         struct b43_wldev *up_dev = NULL;
3709         struct b43_wldev *down_dev;
3710         struct b43_wldev *d;
3711         int err;
3712         bool uninitialized_var(gmode);
3713         int prev_status;
3714
3715         /* Find a device and PHY which supports the band. */
3716         list_for_each_entry(d, &wl->devlist, list) {
3717                 switch (chan->band) {
3718                 case IEEE80211_BAND_5GHZ:
3719                         if (d->phy.supports_5ghz) {
3720                                 up_dev = d;
3721                                 gmode = false;
3722                         }
3723                         break;
3724                 case IEEE80211_BAND_2GHZ:
3725                         if (d->phy.supports_2ghz) {
3726                                 up_dev = d;
3727                                 gmode = true;
3728                         }
3729                         break;
3730                 default:
3731                         B43_WARN_ON(1);
3732                         return -EINVAL;
3733                 }
3734                 if (up_dev)
3735                         break;
3736         }
3737         if (!up_dev) {
3738                 b43err(wl, "Could not find a device for %s-GHz band operation\n",
3739                        band_to_string(chan->band));
3740                 return -ENODEV;
3741         }
3742         if ((up_dev == wl->current_dev) &&
3743             (!!wl->current_dev->phy.gmode == !!gmode)) {
3744                 /* This device is already running. */
3745                 return 0;
3746         }
3747         b43dbg(wl, "Switching to %s-GHz band\n",
3748                band_to_string(chan->band));
3749         down_dev = wl->current_dev;
3750
3751         prev_status = b43_status(down_dev);
3752         /* Shutdown the currently running core. */
3753         if (prev_status >= B43_STAT_STARTED)
3754                 down_dev = b43_wireless_core_stop(down_dev);
3755         if (prev_status >= B43_STAT_INITIALIZED)
3756                 b43_wireless_core_exit(down_dev);
3757
3758         if (down_dev != up_dev) {
3759                 /* We switch to a different core, so we put PHY into
3760                  * RESET on the old core. */
3761                 b43_put_phy_into_reset(down_dev);
3762         }
3763
3764         /* Now start the new core. */
3765         up_dev->phy.gmode = gmode;
3766         if (prev_status >= B43_STAT_INITIALIZED) {
3767                 err = b43_wireless_core_init(up_dev);
3768                 if (err) {
3769                         b43err(wl, "Fatal: Could not initialize device for "
3770                                "selected %s-GHz band\n",
3771                                band_to_string(chan->band));
3772                         goto init_failure;
3773                 }
3774         }
3775         if (prev_status >= B43_STAT_STARTED) {
3776                 err = b43_wireless_core_start(up_dev);
3777                 if (err) {
3778                         b43err(wl, "Fatal: Coult not start device for "
3779                                "selected %s-GHz band\n",
3780                                band_to_string(chan->band));
3781                         b43_wireless_core_exit(up_dev);
3782                         goto init_failure;
3783                 }
3784         }
3785         B43_WARN_ON(b43_status(up_dev) != prev_status);
3786
3787         wl->current_dev = up_dev;
3788
3789         return 0;
3790 init_failure:
3791         /* Whoops, failed to init the new core. No core is operating now. */
3792         wl->current_dev = NULL;
3793         return err;
3794 }
3795
3796 /* Write the short and long frame retry limit values. */
3797 static void b43_set_retry_limits(struct b43_wldev *dev,
3798                                  unsigned int short_retry,
3799                                  unsigned int long_retry)
3800 {
3801         /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3802          * the chip-internal counter. */
3803         short_retry = min(short_retry, (unsigned int)0xF);
3804         long_retry = min(long_retry, (unsigned int)0xF);
3805
3806         b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
3807                         short_retry);
3808         b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
3809                         long_retry);
3810 }
3811
3812 static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
3813 {
3814         struct b43_wl *wl = hw_to_b43_wl(hw);
3815         struct b43_wldev *dev;
3816         struct b43_phy *phy;
3817         struct ieee80211_conf *conf = &hw->conf;
3818         int antenna;
3819         int err = 0;
3820         bool reload_bss = false;
3821
3822         mutex_lock(&wl->mutex);
3823
3824         dev = wl->current_dev;
3825
3826         /* Switch the band (if necessary). This might change the active core. */
3827         err = b43_switch_band(wl, conf->channel);
3828         if (err)
3829                 goto out_unlock_mutex;
3830
3831         /* Need to reload all settings if the core changed */
3832         if (dev != wl->current_dev) {
3833                 dev = wl->current_dev;
3834                 changed = ~0;
3835                 reload_bss = true;
3836         }
3837
3838         phy = &dev->phy;
3839
3840         if (conf_is_ht(conf))
3841                 phy->is_40mhz =
3842                         (conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf));
3843         else
3844                 phy->is_40mhz = false;
3845
3846         b43_mac_suspend(dev);
3847
3848         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
3849                 b43_set_retry_limits(dev, conf->short_frame_max_tx_count,
3850                                           conf->long_frame_max_tx_count);
3851         changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
3852         if (!changed)
3853                 goto out_mac_enable;
3854
3855         /* Switch to the requested channel.
3856          * The firmware takes care of races with the TX handler. */
3857         if (conf->channel->hw_value != phy->channel)
3858                 b43_switch_channel(dev, conf->channel->hw_value);
3859
3860         dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
3861
3862         /* Adjust the desired TX power level. */
3863         if (conf->power_level != 0) {
3864                 if (conf->power_level != phy->desired_txpower) {
3865                         phy->desired_txpower = conf->power_level;
3866                         b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME |
3867                                                    B43_TXPWR_IGNORE_TSSI);
3868                 }
3869         }
3870
3871         /* Antennas for RX and management frame TX. */
3872         antenna = B43_ANTENNA_DEFAULT;
3873         b43_mgmtframe_txantenna(dev, antenna);
3874         antenna = B43_ANTENNA_DEFAULT;
3875         if (phy->ops->set_rx_antenna)
3876                 phy->ops->set_rx_antenna(dev, antenna);
3877
3878         if (wl->radio_enabled != phy->radio_on) {
3879                 if (wl->radio_enabled) {
3880                         b43_software_rfkill(dev, false);
3881                         b43info(dev->wl, "Radio turned on by software\n");
3882                         if (!dev->radio_hw_enable) {
3883                                 b43info(dev->wl, "The hardware RF-kill button "
3884                                         "still turns the radio physically off. "
3885                                         "Press the button to turn it on.\n");
3886                         }
3887                 } else {
3888                         b43_software_rfkill(dev, true);
3889                         b43info(dev->wl, "Radio turned off by software\n");
3890                 }
3891         }
3892
3893 out_mac_enable:
3894         b43_mac_enable(dev);
3895 out_unlock_mutex:
3896         mutex_unlock(&wl->mutex);
3897
3898         if (wl->vif && reload_bss)
3899                 b43_op_bss_info_changed(hw, wl->vif, &wl->vif->bss_conf, ~0);
3900
3901         return err;
3902 }
3903
3904 static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates)
3905 {
3906         struct ieee80211_supported_band *sband =
3907                 dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)];
3908         struct ieee80211_rate *rate;
3909         int i;
3910         u16 basic, direct, offset, basic_offset, rateptr;
3911
3912         for (i = 0; i < sband->n_bitrates; i++) {
3913                 rate = &sband->bitrates[i];
3914
3915                 if (b43_is_cck_rate(rate->hw_value)) {
3916                         direct = B43_SHM_SH_CCKDIRECT;
3917                         basic = B43_SHM_SH_CCKBASIC;
3918                         offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3919                         offset &= 0xF;
3920                 } else {
3921                         direct = B43_SHM_SH_OFDMDIRECT;
3922                         basic = B43_SHM_SH_OFDMBASIC;
3923                         offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3924                         offset &= 0xF;
3925                 }
3926
3927                 rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
3928
3929                 if (b43_is_cck_rate(rate->hw_value)) {
3930                         basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3931                         basic_offset &= 0xF;
3932                 } else {
3933                         basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3934                         basic_offset &= 0xF;
3935                 }
3936
3937                 /*
3938                  * Get the pointer that we need to point to
3939                  * from the direct map
3940                  */
3941                 rateptr = b43_shm_read16(dev, B43_SHM_SHARED,
3942                                          direct + 2 * basic_offset);
3943                 /* and write it to the basic map */
3944                 b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset,
3945                                 rateptr);
3946         }
3947 }
3948
3949 static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
3950                                     struct ieee80211_vif *vif,
3951                                     struct ieee80211_bss_conf *conf,
3952                                     u32 changed)
3953 {
3954         struct b43_wl *wl = hw_to_b43_wl(hw);
3955         struct b43_wldev *dev;
3956
3957         mutex_lock(&wl->mutex);
3958
3959         dev = wl->current_dev;
3960         if (!dev || b43_status(dev) < B43_STAT_STARTED)
3961                 goto out_unlock_mutex;
3962
3963         B43_WARN_ON(wl->vif != vif);
3964
3965         if (changed & BSS_CHANGED_BSSID) {
3966                 if (conf->bssid)
3967                         memcpy(wl->bssid, conf->bssid, ETH_ALEN);
3968                 else
3969                         memset(wl->bssid, 0, ETH_ALEN);
3970         }
3971
3972         if (b43_status(dev) >= B43_STAT_INITIALIZED) {
3973                 if (changed & BSS_CHANGED_BEACON &&
3974                     (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3975                      b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3976                      b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
3977                         b43_update_templates(wl);
3978
3979                 if (changed & BSS_CHANGED_BSSID)
3980                         b43_write_mac_bssid_templates(dev);
3981         }
3982
3983         b43_mac_suspend(dev);
3984
3985         /* Update templates for AP/mesh mode. */
3986         if (changed & BSS_CHANGED_BEACON_INT &&
3987             (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3988              b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3989              b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) &&
3990             conf->beacon_int)
3991                 b43_set_beacon_int(dev, conf->beacon_int);
3992
3993         if (changed & BSS_CHANGED_BASIC_RATES)
3994                 b43_update_basic_rates(dev, conf->basic_rates);
3995
3996         if (changed & BSS_CHANGED_ERP_SLOT) {
3997                 if (conf->use_short_slot)
3998                         b43_short_slot_timing_enable(dev);
3999                 else
4000                         b43_short_slot_timing_disable(dev);
4001         }
4002
4003         b43_mac_enable(dev);
4004 out_unlock_mutex:
4005         mutex_unlock(&wl->mutex);
4006 }
4007
4008 static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4009                           struct ieee80211_vif *vif, struct ieee80211_sta *sta,
4010                           struct ieee80211_key_conf *key)
4011 {
4012         struct b43_wl *wl = hw_to_b43_wl(hw);
4013         struct b43_wldev *dev;
4014         u8 algorithm;
4015         u8 index;
4016         int err;
4017         static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
4018
4019         if (modparam_nohwcrypt)
4020                 return -ENOSPC; /* User disabled HW-crypto */
4021
4022         mutex_lock(&wl->mutex);
4023
4024         dev = wl->current_dev;
4025         err = -ENODEV;
4026         if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
4027                 goto out_unlock;
4028
4029         if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) {
4030                 /* We don't have firmware for the crypto engine.
4031                  * Must use software-crypto. */
4032                 err = -EOPNOTSUPP;
4033                 goto out_unlock;
4034         }
4035
4036         err = -EINVAL;
4037         switch (key->cipher) {
4038         case WLAN_CIPHER_SUITE_WEP40:
4039                 algorithm = B43_SEC_ALGO_WEP40;
4040                 break;
4041         case WLAN_CIPHER_SUITE_WEP104:
4042                 algorithm = B43_SEC_ALGO_WEP104;
4043                 break;
4044         case WLAN_CIPHER_SUITE_TKIP:
4045                 algorithm = B43_SEC_ALGO_TKIP;
4046                 break;
4047         case WLAN_CIPHER_SUITE_CCMP:
4048                 algorithm = B43_SEC_ALGO_AES;
4049                 break;
4050         default:
4051                 B43_WARN_ON(1);
4052                 goto out_unlock;
4053         }
4054         index = (u8) (key->keyidx);
4055         if (index > 3)
4056                 goto out_unlock;
4057
4058         switch (cmd) {
4059         case SET_KEY:
4060                 if (algorithm == B43_SEC_ALGO_TKIP &&
4061                     (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ||
4062                     !modparam_hwtkip)) {
4063                         /* We support only pairwise key */
4064                         err = -EOPNOTSUPP;
4065                         goto out_unlock;
4066                 }
4067
4068                 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
4069                         if (WARN_ON(!sta)) {
4070                                 err = -EOPNOTSUPP;
4071                                 goto out_unlock;
4072                         }
4073                         /* Pairwise key with an assigned MAC address. */
4074                         err = b43_key_write(dev, -1, algorithm,
4075                                             key->key, key->keylen,
4076                                             sta->addr, key);
4077                 } else {
4078                         /* Group key */
4079                         err = b43_key_write(dev, index, algorithm,
4080                                             key->key, key->keylen, NULL, key);
4081                 }
4082                 if (err)
4083                         goto out_unlock;
4084
4085                 if (algorithm == B43_SEC_ALGO_WEP40 ||
4086                     algorithm == B43_SEC_ALGO_WEP104) {
4087                         b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
4088                 } else {
4089                         b43_hf_write(dev,
4090                                      b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
4091                 }
4092                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
4093                 if (algorithm == B43_SEC_ALGO_TKIP)
4094                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
4095                 break;
4096         case DISABLE_KEY: {
4097                 err = b43_key_clear(dev, key->hw_key_idx);
4098                 if (err)
4099                         goto out_unlock;
4100                 break;
4101         }
4102         default:
4103                 B43_WARN_ON(1);
4104         }
4105
4106 out_unlock:
4107         if (!err) {
4108                 b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
4109                        "mac: %pM\n",
4110                        cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
4111                        sta ? sta->addr : bcast_addr);
4112                 b43_dump_keymemory(dev);
4113         }
4114         mutex_unlock(&wl->mutex);
4115
4116         return err;
4117 }
4118
4119 static void b43_op_configure_filter(struct ieee80211_hw *hw,
4120                                     unsigned int changed, unsigned int *fflags,
4121                                     u64 multicast)
4122 {
4123         struct b43_wl *wl = hw_to_b43_wl(hw);
4124         struct b43_wldev *dev;
4125
4126         mutex_lock(&wl->mutex);
4127         dev = wl->current_dev;
4128         if (!dev) {
4129                 *fflags = 0;
4130                 goto out_unlock;
4131         }
4132
4133         *fflags &= FIF_PROMISC_IN_BSS |
4134                   FIF_ALLMULTI |
4135                   FIF_FCSFAIL |
4136                   FIF_PLCPFAIL |
4137                   FIF_CONTROL |
4138                   FIF_OTHER_BSS |
4139                   FIF_BCN_PRBRESP_PROMISC;
4140
4141         changed &= FIF_PROMISC_IN_BSS |
4142                    FIF_ALLMULTI |
4143                    FIF_FCSFAIL |
4144                    FIF_PLCPFAIL |
4145                    FIF_CONTROL |
4146                    FIF_OTHER_BSS |
4147                    FIF_BCN_PRBRESP_PROMISC;
4148
4149         wl->filter_flags = *fflags;
4150
4151         if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
4152                 b43_adjust_opmode(dev);
4153
4154 out_unlock:
4155         mutex_unlock(&wl->mutex);
4156 }
4157
4158 /* Locking: wl->mutex
4159  * Returns the current dev. This might be different from the passed in dev,
4160  * because the core might be gone away while we unlocked the mutex. */
4161 static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev)
4162 {
4163         struct b43_wl *wl;
4164         struct b43_wldev *orig_dev;
4165         u32 mask;
4166         int queue_num;
4167
4168         if (!dev)
4169                 return NULL;
4170         wl = dev->wl;
4171 redo:
4172         if (!dev || b43_status(dev) < B43_STAT_STARTED)
4173                 return dev;
4174
4175         /* Cancel work. Unlock to avoid deadlocks. */
4176         mutex_unlock(&wl->mutex);
4177         cancel_delayed_work_sync(&dev->periodic_work);
4178         cancel_work_sync(&wl->tx_work);
4179         mutex_lock(&wl->mutex);
4180         dev = wl->current_dev;
4181         if (!dev || b43_status(dev) < B43_STAT_STARTED) {
4182                 /* Whoops, aliens ate up the device while we were unlocked. */
4183                 return dev;
4184         }
4185
4186         /* Disable interrupts on the device. */
4187         b43_set_status(dev, B43_STAT_INITIALIZED);
4188         if (b43_bus_host_is_sdio(dev->dev)) {
4189                 /* wl->mutex is locked. That is enough. */
4190                 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
4191                 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
4192         } else {
4193                 spin_lock_irq(&wl->hardirq_lock);
4194                 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
4195                 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
4196                 spin_unlock_irq(&wl->hardirq_lock);
4197         }
4198         /* Synchronize and free the interrupt handlers. Unlock to avoid deadlocks. */
4199         orig_dev = dev;
4200         mutex_unlock(&wl->mutex);
4201         if (b43_bus_host_is_sdio(dev->dev)) {
4202                 b43_sdio_free_irq(dev);
4203         } else {
4204                 synchronize_irq(dev->dev->irq);
4205                 free_irq(dev->dev->irq, dev);
4206         }
4207         mutex_lock(&wl->mutex);
4208         dev = wl->current_dev;
4209         if (!dev)
4210                 return dev;
4211         if (dev != orig_dev) {
4212                 if (b43_status(dev) >= B43_STAT_STARTED)
4213                         goto redo;
4214                 return dev;
4215         }
4216         mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
4217         B43_WARN_ON(mask != 0xFFFFFFFF && mask);
4218
4219         /* Drain all TX queues. */
4220         for (queue_num = 0; queue_num < B43_QOS_QUEUE_NUM; queue_num++) {
4221                 while (skb_queue_len(&wl->tx_queue[queue_num]))
4222                         dev_kfree_skb(skb_dequeue(&wl->tx_queue[queue_num]));
4223         }
4224
4225         b43_mac_suspend(dev);
4226         b43_leds_exit(dev);
4227         b43dbg(wl, "Wireless interface stopped\n");
4228
4229         return dev;
4230 }
4231
4232 /* Locking: wl->mutex */
4233 static int b43_wireless_core_start(struct b43_wldev *dev)
4234 {
4235         int err;
4236
4237         B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
4238
4239         drain_txstatus_queue(dev);
4240         if (b43_bus_host_is_sdio(dev->dev)) {
4241                 err = b43_sdio_request_irq(dev, b43_sdio_interrupt_handler);
4242                 if (err) {
4243                         b43err(dev->wl, "Cannot request SDIO IRQ\n");
4244                         goto out;
4245                 }
4246         } else {
4247                 err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler,
4248                                            b43_interrupt_thread_handler,
4249                                            IRQF_SHARED, KBUILD_MODNAME, dev);
4250                 if (err) {
4251                         b43err(dev->wl, "Cannot request IRQ-%d\n",
4252                                dev->dev->irq);
4253                         goto out;
4254                 }
4255         }
4256
4257         /* We are ready to run. */
4258         ieee80211_wake_queues(dev->wl->hw);
4259         b43_set_status(dev, B43_STAT_STARTED);
4260
4261         /* Start data flow (TX/RX). */
4262         b43_mac_enable(dev);
4263         b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
4264
4265         /* Start maintenance work */
4266         b43_periodic_tasks_setup(dev);
4267
4268         b43_leds_init(dev);
4269
4270         b43dbg(dev->wl, "Wireless interface started\n");
4271 out:
4272         return err;
4273 }
4274
4275 /* Get PHY and RADIO versioning numbers */
4276 static int b43_phy_versioning(struct b43_wldev *dev)
4277 {
4278         struct b43_phy *phy = &dev->phy;
4279         u32 tmp;
4280         u8 analog_type;
4281         u8 phy_type;
4282         u8 phy_rev;
4283         u16 radio_manuf;
4284         u16 radio_ver;
4285         u16 radio_rev;
4286         int unsupported = 0;
4287
4288         /* Get PHY versioning */
4289         tmp = b43_read16(dev, B43_MMIO_PHY_VER);
4290         analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
4291         phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
4292         phy_rev = (tmp & B43_PHYVER_VERSION);
4293         switch (phy_type) {
4294         case B43_PHYTYPE_A:
4295                 if (phy_rev >= 4)
4296                         unsupported = 1;
4297                 break;
4298         case B43_PHYTYPE_B:
4299                 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
4300                     && phy_rev != 7)
4301                         unsupported = 1;
4302                 break;
4303         case B43_PHYTYPE_G:
4304                 if (phy_rev > 9)
4305                         unsupported = 1;
4306                 break;
4307 #ifdef CONFIG_B43_PHY_N
4308         case B43_PHYTYPE_N:
4309                 if (phy_rev > 9)
4310                         unsupported = 1;
4311                 break;
4312 #endif
4313 #ifdef CONFIG_B43_PHY_LP
4314         case B43_PHYTYPE_LP:
4315                 if (phy_rev > 2)
4316                         unsupported = 1;
4317                 break;
4318 #endif
4319 #ifdef CONFIG_B43_PHY_HT
4320         case B43_PHYTYPE_HT:
4321                 if (phy_rev > 1)
4322                         unsupported = 1;
4323                 break;
4324 #endif
4325 #ifdef CONFIG_B43_PHY_LCN
4326         case B43_PHYTYPE_LCN:
4327                 if (phy_rev > 1)
4328                         unsupported = 1;
4329                 break;
4330 #endif
4331         default:
4332                 unsupported = 1;
4333         }
4334         if (unsupported) {
4335                 b43err(dev->wl, "FOUND UNSUPPORTED PHY "
4336                        "(Analog %u, Type %u, Revision %u)\n",
4337                        analog_type, phy_type, phy_rev);
4338                 return -EOPNOTSUPP;
4339         }
4340         b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
4341                analog_type, phy_type, phy_rev);
4342
4343         /* Get RADIO versioning */
4344         if (dev->dev->core_rev >= 24) {
4345                 u16 radio24[3];
4346
4347                 for (tmp = 0; tmp < 3; tmp++) {
4348                         b43_write16(dev, B43_MMIO_RADIO24_CONTROL, tmp);
4349                         radio24[tmp] = b43_read16(dev, B43_MMIO_RADIO24_DATA);
4350                 }
4351
4352                 /* Broadcom uses "id" for our "ver" and has separated "ver" */
4353                 /* radio_ver = (radio24[0] & 0xF0) >> 4; */
4354
4355                 radio_manuf = 0x17F;
4356                 radio_ver = (radio24[2] << 8) | radio24[1];
4357                 radio_rev = (radio24[0] & 0xF);
4358         } else {
4359                 if (dev->dev->chip_id == 0x4317) {
4360                         if (dev->dev->chip_rev == 0)
4361                                 tmp = 0x3205017F;
4362                         else if (dev->dev->chip_rev == 1)
4363                                 tmp = 0x4205017F;
4364                         else
4365                                 tmp = 0x5205017F;
4366                 } else {
4367                         b43_write16(dev, B43_MMIO_RADIO_CONTROL,
4368                                     B43_RADIOCTL_ID);
4369                         tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
4370                         b43_write16(dev, B43_MMIO_RADIO_CONTROL,
4371                                     B43_RADIOCTL_ID);
4372                         tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH)
4373                                 << 16;
4374                 }
4375                 radio_manuf = (tmp & 0x00000FFF);
4376                 radio_ver = (tmp & 0x0FFFF000) >> 12;
4377                 radio_rev = (tmp & 0xF0000000) >> 28;
4378         }
4379
4380         if (radio_manuf != 0x17F /* Broadcom */)
4381                 unsupported = 1;
4382         switch (phy_type) {
4383         case B43_PHYTYPE_A:
4384                 if (radio_ver != 0x2060)
4385                         unsupported = 1;
4386                 if (radio_rev != 1)
4387                         unsupported = 1;
4388                 if (radio_manuf != 0x17F)
4389                         unsupported = 1;
4390                 break;
4391         case B43_PHYTYPE_B:
4392                 if ((radio_ver & 0xFFF0) != 0x2050)
4393                         unsupported = 1;
4394                 break;
4395         case B43_PHYTYPE_G:
4396                 if (radio_ver != 0x2050)
4397                         unsupported = 1;
4398                 break;
4399         case B43_PHYTYPE_N:
4400                 if (radio_ver != 0x2055 && radio_ver != 0x2056)
4401                         unsupported = 1;
4402                 break;
4403         case B43_PHYTYPE_LP:
4404                 if (radio_ver != 0x2062 && radio_ver != 0x2063)
4405                         unsupported = 1;
4406                 break;
4407         case B43_PHYTYPE_HT:
4408                 if (radio_ver != 0x2059)
4409                         unsupported = 1;
4410                 break;
4411         case B43_PHYTYPE_LCN:
4412                 if (radio_ver != 0x2064)
4413                         unsupported = 1;
4414                 break;
4415         default:
4416                 B43_WARN_ON(1);
4417         }
4418         if (unsupported) {
4419                 b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
4420                        "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
4421                        radio_manuf, radio_ver, radio_rev);
4422                 return -EOPNOTSUPP;
4423         }
4424         b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
4425                radio_manuf, radio_ver, radio_rev);
4426
4427         phy->radio_manuf = radio_manuf;
4428         phy->radio_ver = radio_ver;
4429         phy->radio_rev = radio_rev;
4430
4431         phy->analog = analog_type;
4432         phy->type = phy_type;
4433         phy->rev = phy_rev;
4434
4435         return 0;
4436 }
4437
4438 static void setup_struct_phy_for_init(struct b43_wldev *dev,
4439                                       struct b43_phy *phy)
4440 {
4441         phy->hardware_power_control = !!modparam_hwpctl;
4442         phy->next_txpwr_check_time = jiffies;
4443         /* PHY TX errors counter. */
4444         atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
4445
4446 #if B43_DEBUG
4447         phy->phy_locked = false;
4448         phy->radio_locked = false;
4449 #endif
4450 }
4451
4452 static void setup_struct_wldev_for_init(struct b43_wldev *dev)
4453 {
4454         dev->dfq_valid = false;
4455
4456         /* Assume the radio is enabled. If it's not enabled, the state will
4457          * immediately get fixed on the first periodic work run. */
4458         dev->radio_hw_enable = true;
4459
4460         /* Stats */
4461         memset(&dev->stats, 0, sizeof(dev->stats));
4462
4463         setup_struct_phy_for_init(dev, &dev->phy);
4464
4465         /* IRQ related flags */
4466         dev->irq_reason = 0;
4467         memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
4468         dev->irq_mask = B43_IRQ_MASKTEMPLATE;
4469         if (b43_modparam_verbose < B43_VERBOSITY_DEBUG)
4470                 dev->irq_mask &= ~B43_IRQ_PHY_TXERR;
4471
4472         dev->mac_suspended = 1;
4473
4474         /* Noise calculation context */
4475         memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
4476 }
4477
4478 static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
4479 {
4480         struct ssb_sprom *sprom = dev->dev->bus_sprom;
4481         u64 hf;
4482
4483         if (!modparam_btcoex)
4484                 return;
4485         if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
4486                 return;
4487         if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
4488                 return;
4489
4490         hf = b43_hf_read(dev);
4491         if (sprom->boardflags_lo & B43_BFL_BTCMOD)
4492                 hf |= B43_HF_BTCOEXALT;
4493         else
4494                 hf |= B43_HF_BTCOEX;
4495         b43_hf_write(dev, hf);
4496 }
4497
4498 static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
4499 {
4500         if (!modparam_btcoex)
4501                 return;
4502         //TODO
4503 }
4504
4505 static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
4506 {
4507         struct ssb_bus *bus;
4508         u32 tmp;
4509
4510         if (dev->dev->bus_type != B43_BUS_SSB)
4511                 return;
4512
4513         bus = dev->dev->sdev->bus;
4514
4515         if ((bus->chip_id == 0x4311 && bus->chip_rev == 2) ||
4516             (bus->chip_id == 0x4312)) {
4517                 tmp = ssb_read32(dev->dev->sdev, SSB_IMCFGLO);
4518                 tmp &= ~SSB_IMCFGLO_REQTO;
4519                 tmp &= ~SSB_IMCFGLO_SERTO;
4520                 tmp |= 0x3;
4521                 ssb_write32(dev->dev->sdev, SSB_IMCFGLO, tmp);
4522                 ssb_commit_settings(bus);
4523         }
4524 }
4525
4526 static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
4527 {
4528         u16 pu_delay;
4529
4530         /* The time value is in microseconds. */
4531         if (dev->phy.type == B43_PHYTYPE_A)
4532                 pu_delay = 3700;
4533         else
4534                 pu_delay = 1050;
4535         if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle)
4536                 pu_delay = 500;
4537         if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
4538                 pu_delay = max(pu_delay, (u16)2400);
4539
4540         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
4541 }
4542
4543 /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
4544 static void b43_set_pretbtt(struct b43_wldev *dev)
4545 {
4546         u16 pretbtt;
4547
4548         /* The time value is in microseconds. */
4549         if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) {
4550                 pretbtt = 2;
4551         } else {
4552                 if (dev->phy.type == B43_PHYTYPE_A)
4553                         pretbtt = 120;
4554                 else
4555                         pretbtt = 250;
4556         }
4557         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
4558         b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
4559 }
4560
4561 /* Shutdown a wireless core */
4562 /* Locking: wl->mutex */
4563 static void b43_wireless_core_exit(struct b43_wldev *dev)
4564 {
4565         u32 macctl;
4566
4567         B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED);
4568         if (!dev || b43_status(dev) != B43_STAT_INITIALIZED)
4569                 return;
4570
4571         /* Unregister HW RNG driver */
4572         b43_rng_exit(dev->wl);
4573
4574         b43_set_status(dev, B43_STAT_UNINIT);
4575
4576         /* Stop the microcode PSM. */
4577         macctl = b43_read32(dev, B43_MMIO_MACCTL);
4578         macctl &= ~B43_MACCTL_PSM_RUN;
4579         macctl |= B43_MACCTL_PSM_JMP0;
4580         b43_write32(dev, B43_MMIO_MACCTL, macctl);
4581
4582         b43_dma_free(dev);
4583         b43_pio_free(dev);
4584         b43_chip_exit(dev);
4585         dev->phy.ops->switch_analog(dev, 0);
4586         if (dev->wl->current_beacon) {
4587                 dev_kfree_skb_any(dev->wl->current_beacon);
4588                 dev->wl->current_beacon = NULL;
4589         }
4590
4591         b43_device_disable(dev, 0);
4592         b43_bus_may_powerdown(dev);
4593 }
4594
4595 /* Initialize a wireless core */
4596 static int b43_wireless_core_init(struct b43_wldev *dev)
4597 {
4598         struct ssb_sprom *sprom = dev->dev->bus_sprom;
4599         struct b43_phy *phy = &dev->phy;
4600         int err;
4601         u64 hf;
4602
4603         B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4604
4605         err = b43_bus_powerup(dev, 0);
4606         if (err)
4607                 goto out;
4608         if (!b43_device_is_enabled(dev))
4609                 b43_wireless_core_reset(dev, phy->gmode);
4610
4611         /* Reset all data structures. */
4612         setup_struct_wldev_for_init(dev);
4613         phy->ops->prepare_structs(dev);
4614
4615         /* Enable IRQ routing to this device. */
4616         switch (dev->dev->bus_type) {
4617 #ifdef CONFIG_B43_BCMA
4618         case B43_BUS_BCMA:
4619                 bcma_core_pci_irq_ctl(&dev->dev->bdev->bus->drv_pci,
4620                                       dev->dev->bdev, true);
4621                 break;
4622 #endif
4623 #ifdef CONFIG_B43_SSB
4624         case B43_BUS_SSB:
4625                 ssb_pcicore_dev_irqvecs_enable(&dev->dev->sdev->bus->pcicore,
4626                                                dev->dev->sdev);
4627                 break;
4628 #endif
4629         }
4630
4631         b43_imcfglo_timeouts_workaround(dev);
4632         b43_bluetooth_coext_disable(dev);
4633         if (phy->ops->prepare_hardware) {
4634                 err = phy->ops->prepare_hardware(dev);
4635                 if (err)
4636                         goto err_busdown;
4637         }
4638         err = b43_chip_init(dev);
4639         if (err)
4640                 goto err_busdown;
4641         b43_shm_write16(dev, B43_SHM_SHARED,
4642                         B43_SHM_SH_WLCOREREV, dev->dev->core_rev);
4643         hf = b43_hf_read(dev);
4644         if (phy->type == B43_PHYTYPE_G) {
4645                 hf |= B43_HF_SYMW;
4646                 if (phy->rev == 1)
4647                         hf |= B43_HF_GDCW;
4648                 if (sprom->boardflags_lo & B43_BFL_PACTRL)
4649                         hf |= B43_HF_OFDMPABOOST;
4650         }
4651         if (phy->radio_ver == 0x2050) {
4652                 if (phy->radio_rev == 6)
4653                         hf |= B43_HF_4318TSSI;
4654                 if (phy->radio_rev < 6)
4655                         hf |= B43_HF_VCORECALC;
4656         }
4657         if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)
4658                 hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */
4659 #ifdef CONFIG_SSB_DRIVER_PCICORE
4660         if (dev->dev->bus_type == B43_BUS_SSB &&
4661             dev->dev->sdev->bus->bustype == SSB_BUSTYPE_PCI &&
4662             dev->dev->sdev->bus->pcicore.dev->id.revision <= 10)
4663                 hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */
4664 #endif
4665         hf &= ~B43_HF_SKCFPUP;
4666         b43_hf_write(dev, hf);
4667
4668         b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
4669                              B43_DEFAULT_LONG_RETRY_LIMIT);
4670         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
4671         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
4672
4673         /* Disable sending probe responses from firmware.
4674          * Setting the MaxTime to one usec will always trigger
4675          * a timeout, so we never send any probe resp.
4676          * A timeout of zero is infinite. */
4677         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
4678
4679         b43_rate_memory_init(dev);
4680         b43_set_phytxctl_defaults(dev);
4681
4682         /* Minimum Contention Window */
4683         if (phy->type == B43_PHYTYPE_B)
4684                 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
4685         else
4686                 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
4687         /* Maximum Contention Window */
4688         b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
4689
4690         if (b43_bus_host_is_pcmcia(dev->dev) ||
4691             b43_bus_host_is_sdio(dev->dev)) {
4692                 dev->__using_pio_transfers = true;
4693                 err = b43_pio_init(dev);
4694         } else if (dev->use_pio) {
4695                 b43warn(dev->wl, "Forced PIO by use_pio module parameter. "
4696                         "This should not be needed and will result in lower "
4697                         "performance.\n");
4698                 dev->__using_pio_transfers = true;
4699                 err = b43_pio_init(dev);
4700         } else {
4701                 dev->__using_pio_transfers = false;
4702                 err = b43_dma_init(dev);
4703         }
4704         if (err)
4705                 goto err_chip_exit;
4706         b43_qos_init(dev);
4707         b43_set_synth_pu_delay(dev, 1);
4708         b43_bluetooth_coext_enable(dev);
4709
4710         b43_bus_powerup(dev, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW));
4711         b43_upload_card_macaddress(dev);
4712         b43_security_init(dev);
4713
4714         ieee80211_wake_queues(dev->wl->hw);
4715
4716         b43_set_status(dev, B43_STAT_INITIALIZED);
4717
4718         /* Register HW RNG driver */
4719         b43_rng_init(dev->wl);
4720
4721 out:
4722         return err;
4723
4724 err_chip_exit:
4725         b43_chip_exit(dev);
4726 err_busdown:
4727         b43_bus_may_powerdown(dev);
4728         B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4729         return err;
4730 }
4731
4732 static int b43_op_add_interface(struct ieee80211_hw *hw,
4733                                 struct ieee80211_vif *vif)
4734 {
4735         struct b43_wl *wl = hw_to_b43_wl(hw);
4736         struct b43_wldev *dev;
4737         int err = -EOPNOTSUPP;
4738
4739         /* TODO: allow WDS/AP devices to coexist */
4740
4741         if (vif->type != NL80211_IFTYPE_AP &&
4742             vif->type != NL80211_IFTYPE_MESH_POINT &&
4743             vif->type != NL80211_IFTYPE_STATION &&
4744             vif->type != NL80211_IFTYPE_WDS &&
4745             vif->type != NL80211_IFTYPE_ADHOC)
4746                 return -EOPNOTSUPP;
4747
4748         mutex_lock(&wl->mutex);
4749         if (wl->operating)
4750                 goto out_mutex_unlock;
4751
4752         b43dbg(wl, "Adding Interface type %d\n", vif->type);
4753
4754         dev = wl->current_dev;
4755         wl->operating = true;
4756         wl->vif = vif;
4757         wl->if_type = vif->type;
4758         memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
4759
4760         b43_adjust_opmode(dev);
4761         b43_set_pretbtt(dev);
4762         b43_set_synth_pu_delay(dev, 0);
4763         b43_upload_card_macaddress(dev);
4764
4765         err = 0;
4766  out_mutex_unlock:
4767         mutex_unlock(&wl->mutex);
4768
4769         if (err == 0)
4770                 b43_op_bss_info_changed(hw, vif, &vif->bss_conf, ~0);
4771
4772         return err;
4773 }
4774
4775 static void b43_op_remove_interface(struct ieee80211_hw *hw,
4776                                     struct ieee80211_vif *vif)
4777 {
4778         struct b43_wl *wl = hw_to_b43_wl(hw);
4779         struct b43_wldev *dev = wl->current_dev;
4780
4781         b43dbg(wl, "Removing Interface type %d\n", vif->type);
4782
4783         mutex_lock(&wl->mutex);
4784
4785         B43_WARN_ON(!wl->operating);
4786         B43_WARN_ON(wl->vif != vif);
4787         wl->vif = NULL;
4788
4789         wl->operating = false;
4790
4791         b43_adjust_opmode(dev);
4792         memset(wl->mac_addr, 0, ETH_ALEN);
4793         b43_upload_card_macaddress(dev);
4794
4795         mutex_unlock(&wl->mutex);
4796 }
4797
4798 static int b43_op_start(struct ieee80211_hw *hw)
4799 {
4800         struct b43_wl *wl = hw_to_b43_wl(hw);
4801         struct b43_wldev *dev = wl->current_dev;
4802         int did_init = 0;
4803         int err = 0;
4804
4805         /* Kill all old instance specific information to make sure
4806          * the card won't use it in the short timeframe between start
4807          * and mac80211 reconfiguring it. */
4808         memset(wl->bssid, 0, ETH_ALEN);
4809         memset(wl->mac_addr, 0, ETH_ALEN);
4810         wl->filter_flags = 0;
4811         wl->radiotap_enabled = false;
4812         b43_qos_clear(wl);
4813         wl->beacon0_uploaded = false;
4814         wl->beacon1_uploaded = false;
4815         wl->beacon_templates_virgin = true;
4816         wl->radio_enabled = true;
4817
4818         mutex_lock(&wl->mutex);
4819
4820         if (b43_status(dev) < B43_STAT_INITIALIZED) {
4821                 err = b43_wireless_core_init(dev);
4822                 if (err)
4823                         goto out_mutex_unlock;
4824                 did_init = 1;
4825         }
4826
4827         if (b43_status(dev) < B43_STAT_STARTED) {
4828                 err = b43_wireless_core_start(dev);
4829                 if (err) {
4830                         if (did_init)
4831                                 b43_wireless_core_exit(dev);
4832                         goto out_mutex_unlock;
4833                 }
4834         }
4835
4836         /* XXX: only do if device doesn't support rfkill irq */
4837         wiphy_rfkill_start_polling(hw->wiphy);
4838
4839  out_mutex_unlock:
4840         mutex_unlock(&wl->mutex);
4841
4842         /* reload configuration */
4843         b43_op_config(hw, ~0);
4844
4845         return err;
4846 }
4847
4848 static void b43_op_stop(struct ieee80211_hw *hw)
4849 {
4850         struct b43_wl *wl = hw_to_b43_wl(hw);
4851         struct b43_wldev *dev = wl->current_dev;
4852
4853         cancel_work_sync(&(wl->beacon_update_trigger));
4854
4855         mutex_lock(&wl->mutex);
4856         if (b43_status(dev) >= B43_STAT_STARTED) {
4857                 dev = b43_wireless_core_stop(dev);
4858                 if (!dev)
4859                         goto out_unlock;
4860         }
4861         b43_wireless_core_exit(dev);
4862         wl->radio_enabled = false;
4863
4864 out_unlock:
4865         mutex_unlock(&wl->mutex);
4866
4867         cancel_work_sync(&(wl->txpower_adjust_work));
4868 }
4869
4870 static int b43_op_beacon_set_tim(struct ieee80211_hw *hw,
4871                                  struct ieee80211_sta *sta, bool set)
4872 {
4873         struct b43_wl *wl = hw_to_b43_wl(hw);
4874
4875         /* FIXME: add locking */
4876         b43_update_templates(wl);
4877
4878         return 0;
4879 }
4880
4881 static void b43_op_sta_notify(struct ieee80211_hw *hw,
4882                               struct ieee80211_vif *vif,
4883                               enum sta_notify_cmd notify_cmd,
4884                               struct ieee80211_sta *sta)
4885 {
4886         struct b43_wl *wl = hw_to_b43_wl(hw);
4887
4888         B43_WARN_ON(!vif || wl->vif != vif);
4889 }
4890
4891 static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw)
4892 {
4893         struct b43_wl *wl = hw_to_b43_wl(hw);
4894         struct b43_wldev *dev;
4895
4896         mutex_lock(&wl->mutex);
4897         dev = wl->current_dev;
4898         if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4899                 /* Disable CFP update during scan on other channels. */
4900                 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP);
4901         }
4902         mutex_unlock(&wl->mutex);
4903 }
4904
4905 static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw)
4906 {
4907         struct b43_wl *wl = hw_to_b43_wl(hw);
4908         struct b43_wldev *dev;
4909
4910         mutex_lock(&wl->mutex);
4911         dev = wl->current_dev;
4912         if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4913                 /* Re-enable CFP update. */
4914                 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP);
4915         }
4916         mutex_unlock(&wl->mutex);
4917 }
4918
4919 static int b43_op_get_survey(struct ieee80211_hw *hw, int idx,
4920                              struct survey_info *survey)
4921 {
4922         struct b43_wl *wl = hw_to_b43_wl(hw);
4923         struct b43_wldev *dev = wl->current_dev;
4924         struct ieee80211_conf *conf = &hw->conf;
4925
4926         if (idx != 0)
4927                 return -ENOENT;
4928
4929         survey->channel = conf->channel;
4930         survey->filled = SURVEY_INFO_NOISE_DBM;
4931         survey->noise = dev->stats.link_noise;
4932
4933         return 0;
4934 }
4935
4936 static const struct ieee80211_ops b43_hw_ops = {
4937         .tx                     = b43_op_tx,
4938         .conf_tx                = b43_op_conf_tx,
4939         .add_interface          = b43_op_add_interface,
4940         .remove_interface       = b43_op_remove_interface,
4941         .config                 = b43_op_config,
4942         .bss_info_changed       = b43_op_bss_info_changed,
4943         .configure_filter       = b43_op_configure_filter,
4944         .set_key                = b43_op_set_key,
4945         .update_tkip_key        = b43_op_update_tkip_key,
4946         .get_stats              = b43_op_get_stats,
4947         .get_tsf                = b43_op_get_tsf,
4948         .set_tsf                = b43_op_set_tsf,
4949         .start                  = b43_op_start,
4950         .stop                   = b43_op_stop,
4951         .set_tim                = b43_op_beacon_set_tim,
4952         .sta_notify             = b43_op_sta_notify,
4953         .sw_scan_start          = b43_op_sw_scan_start_notifier,
4954         .sw_scan_complete       = b43_op_sw_scan_complete_notifier,
4955         .get_survey             = b43_op_get_survey,
4956         .rfkill_poll            = b43_rfkill_poll,
4957 };
4958
4959 /* Hard-reset the chip. Do not call this directly.
4960  * Use b43_controller_restart()
4961  */
4962 static void b43_chip_reset(struct work_struct *work)
4963 {
4964         struct b43_wldev *dev =
4965             container_of(work, struct b43_wldev, restart_work);
4966         struct b43_wl *wl = dev->wl;
4967         int err = 0;
4968         int prev_status;
4969
4970         mutex_lock(&wl->mutex);
4971
4972         prev_status = b43_status(dev);
4973         /* Bring the device down... */
4974         if (prev_status >= B43_STAT_STARTED) {
4975                 dev = b43_wireless_core_stop(dev);
4976                 if (!dev) {
4977                         err = -ENODEV;
4978                         goto out;
4979                 }
4980         }
4981         if (prev_status >= B43_STAT_INITIALIZED)
4982                 b43_wireless_core_exit(dev);
4983
4984         /* ...and up again. */
4985         if (prev_status >= B43_STAT_INITIALIZED) {
4986                 err = b43_wireless_core_init(dev);
4987                 if (err)
4988                         goto out;
4989         }
4990         if (prev_status >= B43_STAT_STARTED) {
4991                 err = b43_wireless_core_start(dev);
4992                 if (err) {
4993                         b43_wireless_core_exit(dev);
4994                         goto out;
4995                 }
4996         }
4997 out:
4998         if (err)
4999                 wl->current_dev = NULL; /* Failed to init the dev. */
5000         mutex_unlock(&wl->mutex);
5001
5002         if (err) {
5003                 b43err(wl, "Controller restart FAILED\n");
5004                 return;
5005         }
5006
5007         /* reload configuration */
5008         b43_op_config(wl->hw, ~0);
5009         if (wl->vif)
5010                 b43_op_bss_info_changed(wl->hw, wl->vif, &wl->vif->bss_conf, ~0);
5011
5012         b43info(wl, "Controller restarted\n");
5013 }
5014
5015 static int b43_setup_bands(struct b43_wldev *dev,
5016                            bool have_2ghz_phy, bool have_5ghz_phy)
5017 {
5018         struct ieee80211_hw *hw = dev->wl->hw;
5019
5020         if (have_2ghz_phy)
5021                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
5022         if (dev->phy.type == B43_PHYTYPE_N) {
5023                 if (have_5ghz_phy)
5024                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
5025         } else {
5026                 if (have_5ghz_phy)
5027                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
5028         }
5029
5030         dev->phy.supports_2ghz = have_2ghz_phy;
5031         dev->phy.supports_5ghz = have_5ghz_phy;
5032
5033         return 0;
5034 }
5035
5036 static void b43_wireless_core_detach(struct b43_wldev *dev)
5037 {
5038         /* We release firmware that late to not be required to re-request
5039          * is all the time when we reinit the core. */
5040         b43_release_firmware(dev);
5041         b43_phy_free(dev);
5042 }
5043
5044 static int b43_wireless_core_attach(struct b43_wldev *dev)
5045 {
5046         struct b43_wl *wl = dev->wl;
5047         struct pci_dev *pdev = NULL;
5048         int err;
5049         u32 tmp;
5050         bool have_2ghz_phy = false, have_5ghz_phy = false;
5051
5052         /* Do NOT do any device initialization here.
5053          * Do it in wireless_core_init() instead.
5054          * This function is for gathering basic information about the HW, only.
5055          * Also some structs may be set up here. But most likely you want to have
5056          * that in core_init(), too.
5057          */
5058
5059 #ifdef CONFIG_B43_SSB
5060         if (dev->dev->bus_type == B43_BUS_SSB &&
5061             dev->dev->sdev->bus->bustype == SSB_BUSTYPE_PCI)
5062                 pdev = dev->dev->sdev->bus->host_pci;
5063 #endif
5064
5065         err = b43_bus_powerup(dev, 0);
5066         if (err) {
5067                 b43err(wl, "Bus powerup failed\n");
5068                 goto out;
5069         }
5070
5071         /* Get the PHY type. */
5072         switch (dev->dev->bus_type) {
5073 #ifdef CONFIG_B43_BCMA
5074         case B43_BUS_BCMA:
5075                 tmp = bcma_aread32(dev->dev->bdev, BCMA_IOST);
5076                 have_2ghz_phy = !!(tmp & B43_BCMA_IOST_2G_PHY);
5077                 have_5ghz_phy = !!(tmp & B43_BCMA_IOST_5G_PHY);
5078                 break;
5079 #endif
5080 #ifdef CONFIG_B43_SSB
5081         case B43_BUS_SSB:
5082                 if (dev->dev->core_rev >= 5) {
5083                         tmp = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
5084                         have_2ghz_phy = !!(tmp & B43_TMSHIGH_HAVE_2GHZ_PHY);
5085                         have_5ghz_phy = !!(tmp & B43_TMSHIGH_HAVE_5GHZ_PHY);
5086                 } else
5087                         B43_WARN_ON(1);
5088                 break;
5089 #endif
5090         }
5091
5092         dev->phy.gmode = have_2ghz_phy;
5093         dev->phy.radio_on = true;
5094         b43_wireless_core_reset(dev, dev->phy.gmode);
5095
5096         err = b43_phy_versioning(dev);
5097         if (err)
5098                 goto err_powerdown;
5099         /* Check if this device supports multiband. */
5100         if (!pdev ||
5101             (pdev->device != 0x4312 &&
5102              pdev->device != 0x4319 && pdev->device != 0x4324)) {
5103                 /* No multiband support. */
5104                 have_2ghz_phy = false;
5105                 have_5ghz_phy = false;
5106                 switch (dev->phy.type) {
5107                 case B43_PHYTYPE_A:
5108                         have_5ghz_phy = true;
5109                         break;
5110                 case B43_PHYTYPE_LP: //FIXME not always!
5111 #if 0 //FIXME enabling 5GHz causes a NULL pointer dereference
5112                         have_5ghz_phy = 1;
5113 #endif
5114                 case B43_PHYTYPE_G:
5115                 case B43_PHYTYPE_N:
5116                 case B43_PHYTYPE_HT:
5117                 case B43_PHYTYPE_LCN:
5118                         have_2ghz_phy = true;
5119                         break;
5120                 default:
5121                         B43_WARN_ON(1);
5122                 }
5123         }
5124         if (dev->phy.type == B43_PHYTYPE_A) {
5125                 /* FIXME */
5126                 b43err(wl, "IEEE 802.11a devices are unsupported\n");
5127                 err = -EOPNOTSUPP;
5128                 goto err_powerdown;
5129         }
5130         if (1 /* disable A-PHY */) {
5131                 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
5132                 if (dev->phy.type != B43_PHYTYPE_N &&
5133                     dev->phy.type != B43_PHYTYPE_LP) {
5134                         have_2ghz_phy = true;
5135                         have_5ghz_phy = false;
5136                 }
5137         }
5138
5139         err = b43_phy_allocate(dev);
5140         if (err)
5141                 goto err_powerdown;
5142
5143         dev->phy.gmode = have_2ghz_phy;
5144         b43_wireless_core_reset(dev, dev->phy.gmode);
5145
5146         err = b43_validate_chipaccess(dev);
5147         if (err)
5148                 goto err_phy_free;
5149         err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
5150         if (err)
5151                 goto err_phy_free;
5152
5153         /* Now set some default "current_dev" */
5154         if (!wl->current_dev)
5155                 wl->current_dev = dev;
5156         INIT_WORK(&dev->restart_work, b43_chip_reset);
5157
5158         dev->phy.ops->switch_analog(dev, 0);
5159         b43_device_disable(dev, 0);
5160         b43_bus_may_powerdown(dev);
5161
5162 out:
5163         return err;
5164
5165 err_phy_free:
5166         b43_phy_free(dev);
5167 err_powerdown:
5168         b43_bus_may_powerdown(dev);
5169         return err;
5170 }
5171
5172 static void b43_one_core_detach(struct b43_bus_dev *dev)
5173 {
5174         struct b43_wldev *wldev;
5175         struct b43_wl *wl;
5176
5177         /* Do not cancel ieee80211-workqueue based work here.
5178          * See comment in b43_remove(). */
5179
5180         wldev = b43_bus_get_wldev(dev);
5181         wl = wldev->wl;
5182         b43_debugfs_remove_device(wldev);
5183         b43_wireless_core_detach(wldev);
5184         list_del(&wldev->list);
5185         wl->nr_devs--;
5186         b43_bus_set_wldev(dev, NULL);
5187         kfree(wldev);
5188 }
5189
5190 static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl)
5191 {
5192         struct b43_wldev *wldev;
5193         int err = -ENOMEM;
5194
5195         wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
5196         if (!wldev)
5197                 goto out;
5198
5199         wldev->use_pio = b43_modparam_pio;
5200         wldev->dev = dev;
5201         wldev->wl = wl;
5202         b43_set_status(wldev, B43_STAT_UNINIT);
5203         wldev->bad_frames_preempt = modparam_bad_frames_preempt;
5204         INIT_LIST_HEAD(&wldev->list);
5205
5206         err = b43_wireless_core_attach(wldev);
5207         if (err)
5208                 goto err_kfree_wldev;
5209
5210         list_add(&wldev->list, &wl->devlist);
5211         wl->nr_devs++;
5212         b43_bus_set_wldev(dev, wldev);
5213         b43_debugfs_add_device(wldev);
5214
5215       out:
5216         return err;
5217
5218       err_kfree_wldev:
5219         kfree(wldev);
5220         return err;
5221 }
5222
5223 #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice)         ( \
5224         (pdev->vendor == PCI_VENDOR_ID_##_vendor) &&                    \
5225         (pdev->device == _device) &&                                    \
5226         (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) &&       \
5227         (pdev->subsystem_device == _subdevice)                          )
5228
5229 static void b43_sprom_fixup(struct ssb_bus *bus)
5230 {
5231         struct pci_dev *pdev;
5232
5233         /* boardflags workarounds */
5234         if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
5235             bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
5236                 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
5237         if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
5238             bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
5239                 bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
5240         if (bus->bustype == SSB_BUSTYPE_PCI) {
5241                 pdev = bus->host_pci;
5242                 if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) ||
5243                     IS_PDEV(pdev, BROADCOM, 0x4320,    DELL, 0x0003) ||
5244                     IS_PDEV(pdev, BROADCOM, 0x4320,      HP, 0x12f8) ||
5245                     IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) ||
5246                     IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) ||
5247                     IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) ||
5248                     IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010))
5249                         bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST;
5250         }
5251 }
5252
5253 static void b43_wireless_exit(struct b43_bus_dev *dev, struct b43_wl *wl)
5254 {
5255         struct ieee80211_hw *hw = wl->hw;
5256
5257         ssb_set_devtypedata(dev->sdev, NULL);
5258         ieee80211_free_hw(hw);
5259 }
5260
5261 static struct b43_wl *b43_wireless_init(struct b43_bus_dev *dev)
5262 {
5263         struct ssb_sprom *sprom = dev->bus_sprom;
5264         struct ieee80211_hw *hw;
5265         struct b43_wl *wl;
5266         char chip_name[6];
5267         int queue_num;
5268
5269         hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
5270         if (!hw) {
5271                 b43err(NULL, "Could not allocate ieee80211 device\n");
5272                 return ERR_PTR(-ENOMEM);
5273         }
5274         wl = hw_to_b43_wl(hw);
5275
5276         /* fill hw info */
5277         hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
5278                     IEEE80211_HW_SIGNAL_DBM;
5279
5280         hw->wiphy->interface_modes =
5281                 BIT(NL80211_IFTYPE_AP) |
5282                 BIT(NL80211_IFTYPE_MESH_POINT) |
5283                 BIT(NL80211_IFTYPE_STATION) |
5284                 BIT(NL80211_IFTYPE_WDS) |
5285                 BIT(NL80211_IFTYPE_ADHOC);
5286
5287         hw->queues = modparam_qos ? B43_QOS_QUEUE_NUM : 1;
5288         wl->mac80211_initially_registered_queues = hw->queues;
5289         hw->max_rates = 2;
5290         SET_IEEE80211_DEV(hw, dev->dev);
5291         if (is_valid_ether_addr(sprom->et1mac))
5292                 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
5293         else
5294                 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
5295
5296         /* Initialize struct b43_wl */
5297         wl->hw = hw;
5298         mutex_init(&wl->mutex);
5299         spin_lock_init(&wl->hardirq_lock);
5300         INIT_LIST_HEAD(&wl->devlist);
5301         INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
5302         INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work);
5303         INIT_WORK(&wl->tx_work, b43_tx_work);
5304
5305         /* Initialize queues and flags. */
5306         for (queue_num = 0; queue_num < B43_QOS_QUEUE_NUM; queue_num++) {
5307                 skb_queue_head_init(&wl->tx_queue[queue_num]);
5308                 wl->tx_queue_stopped[queue_num] = 0;
5309         }
5310
5311         snprintf(chip_name, ARRAY_SIZE(chip_name),
5312                  (dev->chip_id > 0x9999) ? "%d" : "%04X", dev->chip_id);
5313         b43info(wl, "Broadcom %s WLAN found (core revision %u)\n", chip_name,
5314                 dev->core_rev);
5315         return wl;
5316 }
5317
5318 #ifdef CONFIG_B43_BCMA
5319 static int b43_bcma_probe(struct bcma_device *core)
5320 {
5321         struct b43_bus_dev *dev;
5322         struct b43_wl *wl;
5323         int err;
5324
5325         dev = b43_bus_dev_bcma_init(core);
5326         if (!dev)
5327                 return -ENODEV;
5328
5329         wl = b43_wireless_init(dev);
5330         if (IS_ERR(wl)) {
5331                 err = PTR_ERR(wl);
5332                 goto bcma_out;
5333         }
5334
5335         err = b43_one_core_attach(dev, wl);
5336         if (err)
5337                 goto bcma_err_wireless_exit;
5338
5339         err = ieee80211_register_hw(wl->hw);
5340         if (err)
5341                 goto bcma_err_one_core_detach;
5342         b43_leds_register(wl->current_dev);
5343
5344 bcma_out:
5345         return err;
5346
5347 bcma_err_one_core_detach:
5348         b43_one_core_detach(dev);
5349 bcma_err_wireless_exit:
5350         ieee80211_free_hw(wl->hw);
5351         return err;
5352 }
5353
5354 static void b43_bcma_remove(struct bcma_device *core)
5355 {
5356         struct b43_wldev *wldev = bcma_get_drvdata(core);
5357         struct b43_wl *wl = wldev->wl;
5358
5359         /* We must cancel any work here before unregistering from ieee80211,
5360          * as the ieee80211 unreg will destroy the workqueue. */
5361         cancel_work_sync(&wldev->restart_work);
5362
5363         /* Restore the queues count before unregistering, because firmware detect
5364          * might have modified it. Restoring is important, so the networking
5365          * stack can properly free resources. */
5366         wl->hw->queues = wl->mac80211_initially_registered_queues;
5367         b43_leds_stop(wldev);
5368         ieee80211_unregister_hw(wl->hw);
5369
5370         b43_one_core_detach(wldev->dev);
5371
5372         b43_leds_unregister(wl);
5373
5374         ieee80211_free_hw(wl->hw);
5375 }
5376
5377 static struct bcma_driver b43_bcma_driver = {
5378         .name           = KBUILD_MODNAME,
5379         .id_table       = b43_bcma_tbl,
5380         .probe          = b43_bcma_probe,
5381         .remove         = b43_bcma_remove,
5382 };
5383 #endif
5384
5385 #ifdef CONFIG_B43_SSB
5386 static
5387 int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
5388 {
5389         struct b43_bus_dev *dev;
5390         struct b43_wl *wl;
5391         int err;
5392         int first = 0;
5393
5394         dev = b43_bus_dev_ssb_init(sdev);
5395         if (!dev)
5396                 return -ENOMEM;
5397
5398         wl = ssb_get_devtypedata(sdev);
5399         if (!wl) {
5400                 /* Probing the first core. Must setup common struct b43_wl */
5401                 first = 1;
5402                 b43_sprom_fixup(sdev->bus);
5403                 wl = b43_wireless_init(dev);
5404                 if (IS_ERR(wl)) {
5405                         err = PTR_ERR(wl);
5406                         goto out;
5407                 }
5408                 ssb_set_devtypedata(sdev, wl);
5409                 B43_WARN_ON(ssb_get_devtypedata(sdev) != wl);
5410         }
5411         err = b43_one_core_attach(dev, wl);
5412         if (err)
5413                 goto err_wireless_exit;
5414
5415         if (first) {
5416                 err = ieee80211_register_hw(wl->hw);
5417                 if (err)
5418                         goto err_one_core_detach;
5419                 b43_leds_register(wl->current_dev);
5420         }
5421
5422       out:
5423         return err;
5424
5425       err_one_core_detach:
5426         b43_one_core_detach(dev);
5427       err_wireless_exit:
5428         if (first)
5429                 b43_wireless_exit(dev, wl);
5430         return err;
5431 }
5432
5433 static void b43_ssb_remove(struct ssb_device *sdev)
5434 {
5435         struct b43_wl *wl = ssb_get_devtypedata(sdev);
5436         struct b43_wldev *wldev = ssb_get_drvdata(sdev);
5437         struct b43_bus_dev *dev = wldev->dev;
5438
5439         /* We must cancel any work here before unregistering from ieee80211,
5440          * as the ieee80211 unreg will destroy the workqueue. */
5441         cancel_work_sync(&wldev->restart_work);
5442
5443         B43_WARN_ON(!wl);
5444         if (wl->current_dev == wldev) {
5445                 /* Restore the queues count before unregistering, because firmware detect
5446                  * might have modified it. Restoring is important, so the networking
5447                  * stack can properly free resources. */
5448                 wl->hw->queues = wl->mac80211_initially_registered_queues;
5449                 b43_leds_stop(wldev);
5450                 ieee80211_unregister_hw(wl->hw);
5451         }
5452
5453         b43_one_core_detach(dev);
5454
5455         if (list_empty(&wl->devlist)) {
5456                 b43_leds_unregister(wl);
5457                 /* Last core on the chip unregistered.
5458                  * We can destroy common struct b43_wl.
5459                  */
5460                 b43_wireless_exit(dev, wl);
5461         }
5462 }
5463
5464 static struct ssb_driver b43_ssb_driver = {
5465         .name           = KBUILD_MODNAME,
5466         .id_table       = b43_ssb_tbl,
5467         .probe          = b43_ssb_probe,
5468         .remove         = b43_ssb_remove,
5469 };
5470 #endif /* CONFIG_B43_SSB */
5471
5472 /* Perform a hardware reset. This can be called from any context. */
5473 void b43_controller_restart(struct b43_wldev *dev, const char *reason)
5474 {
5475         /* Must avoid requeueing, if we are in shutdown. */
5476         if (b43_status(dev) < B43_STAT_INITIALIZED)
5477                 return;
5478         b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
5479         ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
5480 }
5481
5482 static void b43_print_driverinfo(void)
5483 {
5484         const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
5485                    *feat_leds = "", *feat_sdio = "";
5486
5487 #ifdef CONFIG_B43_PCI_AUTOSELECT
5488         feat_pci = "P";
5489 #endif
5490 #ifdef CONFIG_B43_PCMCIA
5491         feat_pcmcia = "M";
5492 #endif
5493 #ifdef CONFIG_B43_PHY_N
5494         feat_nphy = "N";
5495 #endif
5496 #ifdef CONFIG_B43_LEDS
5497         feat_leds = "L";
5498 #endif
5499 #ifdef CONFIG_B43_SDIO
5500         feat_sdio = "S";
5501 #endif
5502         printk(KERN_INFO "Broadcom 43xx driver loaded "
5503                "[ Features: %s%s%s%s%s ]\n",
5504                feat_pci, feat_pcmcia, feat_nphy,
5505                feat_leds, feat_sdio);
5506 }
5507
5508 static int __init b43_init(void)
5509 {
5510         int err;
5511
5512         b43_debugfs_init();
5513         err = b43_pcmcia_init();
5514         if (err)
5515                 goto err_dfs_exit;
5516         err = b43_sdio_init();
5517         if (err)
5518                 goto err_pcmcia_exit;
5519 #ifdef CONFIG_B43_BCMA
5520         err = bcma_driver_register(&b43_bcma_driver);
5521         if (err)
5522                 goto err_sdio_exit;
5523 #endif
5524 #ifdef CONFIG_B43_SSB
5525         err = ssb_driver_register(&b43_ssb_driver);
5526         if (err)
5527                 goto err_bcma_driver_exit;
5528 #endif
5529         b43_print_driverinfo();
5530
5531         return err;
5532
5533 #ifdef CONFIG_B43_SSB
5534 err_bcma_driver_exit:
5535 #endif
5536 #ifdef CONFIG_B43_BCMA
5537         bcma_driver_unregister(&b43_bcma_driver);
5538 err_sdio_exit:
5539 #endif
5540         b43_sdio_exit();
5541 err_pcmcia_exit:
5542         b43_pcmcia_exit();
5543 err_dfs_exit:
5544         b43_debugfs_exit();
5545         return err;
5546 }
5547
5548 static void __exit b43_exit(void)
5549 {
5550 #ifdef CONFIG_B43_SSB
5551         ssb_driver_unregister(&b43_ssb_driver);
5552 #endif
5553 #ifdef CONFIG_B43_BCMA
5554         bcma_driver_unregister(&b43_bcma_driver);
5555 #endif
5556         b43_sdio_exit();
5557         b43_pcmcia_exit();
5558         b43_debugfs_exit();
5559 }
5560
5561 module_init(b43_init)
5562 module_exit(b43_exit)