main.c revision 92d6128e1766bb7a7b6dc58f012fdf772fdf1100
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, 2006 Michael Buesch <mb@bu3sch.de> 8 Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org> 9 Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> 10 11 Some parts of the code in this file are derived from the ipw2200 12 driver Copyright(c) 2003 - 2004 Intel Corporation. 13 14 This program is free software; you can redistribute it and/or modify 15 it under the terms of the GNU General Public License as published by 16 the Free Software Foundation; either version 2 of the License, or 17 (at your option) any later version. 18 19 This program is distributed in the hope that it will be useful, 20 but WITHOUT ANY WARRANTY; without even the implied warranty of 21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 22 GNU General Public License for more details. 23 24 You should have received a copy of the GNU General Public License 25 along with this program; see the file COPYING. If not, write to 26 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, 27 Boston, MA 02110-1301, USA. 28 29*/ 30 31#include <linux/delay.h> 32#include <linux/init.h> 33#include <linux/moduleparam.h> 34#include <linux/if_arp.h> 35#include <linux/etherdevice.h> 36#include <linux/firmware.h> 37#include <linux/wireless.h> 38#include <linux/workqueue.h> 39#include <linux/skbuff.h> 40#include <linux/io.h> 41#include <linux/dma-mapping.h> 42#include <asm/unaligned.h> 43 44#include "b43.h" 45#include "main.h" 46#include "debugfs.h" 47#include "phy_common.h" 48#include "phy_g.h" 49#include "phy_n.h" 50#include "dma.h" 51#include "pio.h" 52#include "sysfs.h" 53#include "xmit.h" 54#include "lo.h" 55#include "pcmcia.h" 56 57MODULE_DESCRIPTION("Broadcom B43 wireless driver"); 58MODULE_AUTHOR("Martin Langer"); 59MODULE_AUTHOR("Stefano Brivio"); 60MODULE_AUTHOR("Michael Buesch"); 61MODULE_LICENSE("GPL"); 62 63MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID); 64 65 66static int modparam_bad_frames_preempt; 67module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); 68MODULE_PARM_DESC(bad_frames_preempt, 69 "enable(1) / disable(0) Bad Frames Preemption"); 70 71static char modparam_fwpostfix[16]; 72module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444); 73MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load."); 74 75static int modparam_hwpctl; 76module_param_named(hwpctl, modparam_hwpctl, int, 0444); 77MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)"); 78 79static int modparam_nohwcrypt; 80module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); 81MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); 82 83int b43_modparam_qos = 1; 84module_param_named(qos, b43_modparam_qos, int, 0444); 85MODULE_PARM_DESC(qos, "Enable QOS support (default on)"); 86 87static int modparam_btcoex = 1; 88module_param_named(btcoex, modparam_btcoex, int, 0444); 89MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistance (default on)"); 90 91 92static const struct ssb_device_id b43_ssb_tbl[] = { 93 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5), 94 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6), 95 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7), 96 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9), 97 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10), 98 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11), 99 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13), 100 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16), 101 SSB_DEVTABLE_END 102}; 103 104MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl); 105 106/* Channel and ratetables are shared for all devices. 107 * They can't be const, because ieee80211 puts some precalculated 108 * data in there. This data is the same for all devices, so we don't 109 * get concurrency issues */ 110#define RATETAB_ENT(_rateid, _flags) \ 111 { \ 112 .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \ 113 .hw_value = (_rateid), \ 114 .flags = (_flags), \ 115 } 116 117/* 118 * NOTE: When changing this, sync with xmit.c's 119 * b43_plcp_get_bitrate_idx_* functions! 120 */ 121static struct ieee80211_rate __b43_ratetable[] = { 122 RATETAB_ENT(B43_CCK_RATE_1MB, 0), 123 RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE), 124 RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE), 125 RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE), 126 RATETAB_ENT(B43_OFDM_RATE_6MB, 0), 127 RATETAB_ENT(B43_OFDM_RATE_9MB, 0), 128 RATETAB_ENT(B43_OFDM_RATE_12MB, 0), 129 RATETAB_ENT(B43_OFDM_RATE_18MB, 0), 130 RATETAB_ENT(B43_OFDM_RATE_24MB, 0), 131 RATETAB_ENT(B43_OFDM_RATE_36MB, 0), 132 RATETAB_ENT(B43_OFDM_RATE_48MB, 0), 133 RATETAB_ENT(B43_OFDM_RATE_54MB, 0), 134}; 135 136#define b43_a_ratetable (__b43_ratetable + 4) 137#define b43_a_ratetable_size 8 138#define b43_b_ratetable (__b43_ratetable + 0) 139#define b43_b_ratetable_size 4 140#define b43_g_ratetable (__b43_ratetable + 0) 141#define b43_g_ratetable_size 12 142 143#define CHAN4G(_channel, _freq, _flags) { \ 144 .band = IEEE80211_BAND_2GHZ, \ 145 .center_freq = (_freq), \ 146 .hw_value = (_channel), \ 147 .flags = (_flags), \ 148 .max_antenna_gain = 0, \ 149 .max_power = 30, \ 150} 151static struct ieee80211_channel b43_2ghz_chantable[] = { 152 CHAN4G(1, 2412, 0), 153 CHAN4G(2, 2417, 0), 154 CHAN4G(3, 2422, 0), 155 CHAN4G(4, 2427, 0), 156 CHAN4G(5, 2432, 0), 157 CHAN4G(6, 2437, 0), 158 CHAN4G(7, 2442, 0), 159 CHAN4G(8, 2447, 0), 160 CHAN4G(9, 2452, 0), 161 CHAN4G(10, 2457, 0), 162 CHAN4G(11, 2462, 0), 163 CHAN4G(12, 2467, 0), 164 CHAN4G(13, 2472, 0), 165 CHAN4G(14, 2484, 0), 166}; 167#undef CHAN4G 168 169#define CHAN5G(_channel, _flags) { \ 170 .band = IEEE80211_BAND_5GHZ, \ 171 .center_freq = 5000 + (5 * (_channel)), \ 172 .hw_value = (_channel), \ 173 .flags = (_flags), \ 174 .max_antenna_gain = 0, \ 175 .max_power = 30, \ 176} 177static struct ieee80211_channel b43_5ghz_nphy_chantable[] = { 178 CHAN5G(32, 0), CHAN5G(34, 0), 179 CHAN5G(36, 0), CHAN5G(38, 0), 180 CHAN5G(40, 0), CHAN5G(42, 0), 181 CHAN5G(44, 0), CHAN5G(46, 0), 182 CHAN5G(48, 0), CHAN5G(50, 0), 183 CHAN5G(52, 0), CHAN5G(54, 0), 184 CHAN5G(56, 0), CHAN5G(58, 0), 185 CHAN5G(60, 0), CHAN5G(62, 0), 186 CHAN5G(64, 0), CHAN5G(66, 0), 187 CHAN5G(68, 0), CHAN5G(70, 0), 188 CHAN5G(72, 0), CHAN5G(74, 0), 189 CHAN5G(76, 0), CHAN5G(78, 0), 190 CHAN5G(80, 0), CHAN5G(82, 0), 191 CHAN5G(84, 0), CHAN5G(86, 0), 192 CHAN5G(88, 0), CHAN5G(90, 0), 193 CHAN5G(92, 0), CHAN5G(94, 0), 194 CHAN5G(96, 0), CHAN5G(98, 0), 195 CHAN5G(100, 0), CHAN5G(102, 0), 196 CHAN5G(104, 0), CHAN5G(106, 0), 197 CHAN5G(108, 0), CHAN5G(110, 0), 198 CHAN5G(112, 0), CHAN5G(114, 0), 199 CHAN5G(116, 0), CHAN5G(118, 0), 200 CHAN5G(120, 0), CHAN5G(122, 0), 201 CHAN5G(124, 0), CHAN5G(126, 0), 202 CHAN5G(128, 0), CHAN5G(130, 0), 203 CHAN5G(132, 0), CHAN5G(134, 0), 204 CHAN5G(136, 0), CHAN5G(138, 0), 205 CHAN5G(140, 0), CHAN5G(142, 0), 206 CHAN5G(144, 0), CHAN5G(145, 0), 207 CHAN5G(146, 0), CHAN5G(147, 0), 208 CHAN5G(148, 0), CHAN5G(149, 0), 209 CHAN5G(150, 0), CHAN5G(151, 0), 210 CHAN5G(152, 0), CHAN5G(153, 0), 211 CHAN5G(154, 0), CHAN5G(155, 0), 212 CHAN5G(156, 0), CHAN5G(157, 0), 213 CHAN5G(158, 0), CHAN5G(159, 0), 214 CHAN5G(160, 0), CHAN5G(161, 0), 215 CHAN5G(162, 0), CHAN5G(163, 0), 216 CHAN5G(164, 0), CHAN5G(165, 0), 217 CHAN5G(166, 0), CHAN5G(168, 0), 218 CHAN5G(170, 0), CHAN5G(172, 0), 219 CHAN5G(174, 0), CHAN5G(176, 0), 220 CHAN5G(178, 0), CHAN5G(180, 0), 221 CHAN5G(182, 0), CHAN5G(184, 0), 222 CHAN5G(186, 0), CHAN5G(188, 0), 223 CHAN5G(190, 0), CHAN5G(192, 0), 224 CHAN5G(194, 0), CHAN5G(196, 0), 225 CHAN5G(198, 0), CHAN5G(200, 0), 226 CHAN5G(202, 0), CHAN5G(204, 0), 227 CHAN5G(206, 0), CHAN5G(208, 0), 228 CHAN5G(210, 0), CHAN5G(212, 0), 229 CHAN5G(214, 0), CHAN5G(216, 0), 230 CHAN5G(218, 0), CHAN5G(220, 0), 231 CHAN5G(222, 0), CHAN5G(224, 0), 232 CHAN5G(226, 0), CHAN5G(228, 0), 233}; 234 235static struct ieee80211_channel b43_5ghz_aphy_chantable[] = { 236 CHAN5G(34, 0), CHAN5G(36, 0), 237 CHAN5G(38, 0), CHAN5G(40, 0), 238 CHAN5G(42, 0), CHAN5G(44, 0), 239 CHAN5G(46, 0), CHAN5G(48, 0), 240 CHAN5G(52, 0), CHAN5G(56, 0), 241 CHAN5G(60, 0), CHAN5G(64, 0), 242 CHAN5G(100, 0), CHAN5G(104, 0), 243 CHAN5G(108, 0), CHAN5G(112, 0), 244 CHAN5G(116, 0), CHAN5G(120, 0), 245 CHAN5G(124, 0), CHAN5G(128, 0), 246 CHAN5G(132, 0), CHAN5G(136, 0), 247 CHAN5G(140, 0), CHAN5G(149, 0), 248 CHAN5G(153, 0), CHAN5G(157, 0), 249 CHAN5G(161, 0), CHAN5G(165, 0), 250 CHAN5G(184, 0), CHAN5G(188, 0), 251 CHAN5G(192, 0), CHAN5G(196, 0), 252 CHAN5G(200, 0), CHAN5G(204, 0), 253 CHAN5G(208, 0), CHAN5G(212, 0), 254 CHAN5G(216, 0), 255}; 256#undef CHAN5G 257 258static struct ieee80211_supported_band b43_band_5GHz_nphy = { 259 .band = IEEE80211_BAND_5GHZ, 260 .channels = b43_5ghz_nphy_chantable, 261 .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable), 262 .bitrates = b43_a_ratetable, 263 .n_bitrates = b43_a_ratetable_size, 264}; 265 266static struct ieee80211_supported_band b43_band_5GHz_aphy = { 267 .band = IEEE80211_BAND_5GHZ, 268 .channels = b43_5ghz_aphy_chantable, 269 .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable), 270 .bitrates = b43_a_ratetable, 271 .n_bitrates = b43_a_ratetable_size, 272}; 273 274static struct ieee80211_supported_band b43_band_2GHz = { 275 .band = IEEE80211_BAND_2GHZ, 276 .channels = b43_2ghz_chantable, 277 .n_channels = ARRAY_SIZE(b43_2ghz_chantable), 278 .bitrates = b43_g_ratetable, 279 .n_bitrates = b43_g_ratetable_size, 280}; 281 282static void b43_wireless_core_exit(struct b43_wldev *dev); 283static int b43_wireless_core_init(struct b43_wldev *dev); 284static void b43_wireless_core_stop(struct b43_wldev *dev); 285static int b43_wireless_core_start(struct b43_wldev *dev); 286 287static int b43_ratelimit(struct b43_wl *wl) 288{ 289 if (!wl || !wl->current_dev) 290 return 1; 291 if (b43_status(wl->current_dev) < B43_STAT_STARTED) 292 return 1; 293 /* We are up and running. 294 * Ratelimit the messages to avoid DoS over the net. */ 295 return net_ratelimit(); 296} 297 298void b43info(struct b43_wl *wl, const char *fmt, ...) 299{ 300 va_list args; 301 302 if (!b43_ratelimit(wl)) 303 return; 304 va_start(args, fmt); 305 printk(KERN_INFO "b43-%s: ", 306 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); 307 vprintk(fmt, args); 308 va_end(args); 309} 310 311void b43err(struct b43_wl *wl, const char *fmt, ...) 312{ 313 va_list args; 314 315 if (!b43_ratelimit(wl)) 316 return; 317 va_start(args, fmt); 318 printk(KERN_ERR "b43-%s ERROR: ", 319 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); 320 vprintk(fmt, args); 321 va_end(args); 322} 323 324void b43warn(struct b43_wl *wl, const char *fmt, ...) 325{ 326 va_list args; 327 328 if (!b43_ratelimit(wl)) 329 return; 330 va_start(args, fmt); 331 printk(KERN_WARNING "b43-%s warning: ", 332 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); 333 vprintk(fmt, args); 334 va_end(args); 335} 336 337#if B43_DEBUG 338void b43dbg(struct b43_wl *wl, const char *fmt, ...) 339{ 340 va_list args; 341 342 va_start(args, fmt); 343 printk(KERN_DEBUG "b43-%s debug: ", 344 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); 345 vprintk(fmt, args); 346 va_end(args); 347} 348#endif /* DEBUG */ 349 350static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val) 351{ 352 u32 macctl; 353 354 B43_WARN_ON(offset % 4 != 0); 355 356 macctl = b43_read32(dev, B43_MMIO_MACCTL); 357 if (macctl & B43_MACCTL_BE) 358 val = swab32(val); 359 360 b43_write32(dev, B43_MMIO_RAM_CONTROL, offset); 361 mmiowb(); 362 b43_write32(dev, B43_MMIO_RAM_DATA, val); 363} 364 365static inline void b43_shm_control_word(struct b43_wldev *dev, 366 u16 routing, u16 offset) 367{ 368 u32 control; 369 370 /* "offset" is the WORD offset. */ 371 control = routing; 372 control <<= 16; 373 control |= offset; 374 b43_write32(dev, B43_MMIO_SHM_CONTROL, control); 375} 376 377u32 __b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) 378{ 379 u32 ret; 380 381 if (routing == B43_SHM_SHARED) { 382 B43_WARN_ON(offset & 0x0001); 383 if (offset & 0x0003) { 384 /* Unaligned access */ 385 b43_shm_control_word(dev, routing, offset >> 2); 386 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); 387 ret <<= 16; 388 b43_shm_control_word(dev, routing, (offset >> 2) + 1); 389 ret |= b43_read16(dev, B43_MMIO_SHM_DATA); 390 391 goto out; 392 } 393 offset >>= 2; 394 } 395 b43_shm_control_word(dev, routing, offset); 396 ret = b43_read32(dev, B43_MMIO_SHM_DATA); 397out: 398 return ret; 399} 400 401u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) 402{ 403 struct b43_wl *wl = dev->wl; 404 unsigned long flags; 405 u32 ret; 406 407 spin_lock_irqsave(&wl->shm_lock, flags); 408 ret = __b43_shm_read32(dev, routing, offset); 409 spin_unlock_irqrestore(&wl->shm_lock, flags); 410 411 return ret; 412} 413 414u16 __b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) 415{ 416 u16 ret; 417 418 if (routing == B43_SHM_SHARED) { 419 B43_WARN_ON(offset & 0x0001); 420 if (offset & 0x0003) { 421 /* Unaligned access */ 422 b43_shm_control_word(dev, routing, offset >> 2); 423 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); 424 425 goto out; 426 } 427 offset >>= 2; 428 } 429 b43_shm_control_word(dev, routing, offset); 430 ret = b43_read16(dev, B43_MMIO_SHM_DATA); 431out: 432 return ret; 433} 434 435u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) 436{ 437 struct b43_wl *wl = dev->wl; 438 unsigned long flags; 439 u16 ret; 440 441 spin_lock_irqsave(&wl->shm_lock, flags); 442 ret = __b43_shm_read16(dev, routing, offset); 443 spin_unlock_irqrestore(&wl->shm_lock, flags); 444 445 return ret; 446} 447 448void __b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) 449{ 450 if (routing == B43_SHM_SHARED) { 451 B43_WARN_ON(offset & 0x0001); 452 if (offset & 0x0003) { 453 /* Unaligned access */ 454 b43_shm_control_word(dev, routing, offset >> 2); 455 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, 456 (value >> 16) & 0xffff); 457 b43_shm_control_word(dev, routing, (offset >> 2) + 1); 458 b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff); 459 return; 460 } 461 offset >>= 2; 462 } 463 b43_shm_control_word(dev, routing, offset); 464 b43_write32(dev, B43_MMIO_SHM_DATA, value); 465} 466 467void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) 468{ 469 struct b43_wl *wl = dev->wl; 470 unsigned long flags; 471 472 spin_lock_irqsave(&wl->shm_lock, flags); 473 __b43_shm_write32(dev, routing, offset, value); 474 spin_unlock_irqrestore(&wl->shm_lock, flags); 475} 476 477void __b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) 478{ 479 if (routing == B43_SHM_SHARED) { 480 B43_WARN_ON(offset & 0x0001); 481 if (offset & 0x0003) { 482 /* Unaligned access */ 483 b43_shm_control_word(dev, routing, offset >> 2); 484 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value); 485 return; 486 } 487 offset >>= 2; 488 } 489 b43_shm_control_word(dev, routing, offset); 490 b43_write16(dev, B43_MMIO_SHM_DATA, value); 491} 492 493void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) 494{ 495 struct b43_wl *wl = dev->wl; 496 unsigned long flags; 497 498 spin_lock_irqsave(&wl->shm_lock, flags); 499 __b43_shm_write16(dev, routing, offset, value); 500 spin_unlock_irqrestore(&wl->shm_lock, flags); 501} 502 503/* Read HostFlags */ 504u64 b43_hf_read(struct b43_wldev * dev) 505{ 506 u64 ret; 507 508 ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI); 509 ret <<= 16; 510 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI); 511 ret <<= 16; 512 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO); 513 514 return ret; 515} 516 517/* Write HostFlags */ 518void b43_hf_write(struct b43_wldev *dev, u64 value) 519{ 520 u16 lo, mi, hi; 521 522 lo = (value & 0x00000000FFFFULL); 523 mi = (value & 0x0000FFFF0000ULL) >> 16; 524 hi = (value & 0xFFFF00000000ULL) >> 32; 525 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo); 526 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi); 527 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi); 528} 529 530void b43_tsf_read(struct b43_wldev *dev, u64 *tsf) 531{ 532 u32 low, high; 533 534 B43_WARN_ON(dev->dev->id.revision < 3); 535 536 /* The hardware guarantees us an atomic read, if we 537 * read the low register first. */ 538 low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW); 539 high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); 540 541 *tsf = high; 542 *tsf <<= 32; 543 *tsf |= low; 544} 545 546static void b43_time_lock(struct b43_wldev *dev) 547{ 548 u32 macctl; 549 550 macctl = b43_read32(dev, B43_MMIO_MACCTL); 551 macctl |= B43_MACCTL_TBTTHOLD; 552 b43_write32(dev, B43_MMIO_MACCTL, macctl); 553 /* Commit the write */ 554 b43_read32(dev, B43_MMIO_MACCTL); 555} 556 557static void b43_time_unlock(struct b43_wldev *dev) 558{ 559 u32 macctl; 560 561 macctl = b43_read32(dev, B43_MMIO_MACCTL); 562 macctl &= ~B43_MACCTL_TBTTHOLD; 563 b43_write32(dev, B43_MMIO_MACCTL, macctl); 564 /* Commit the write */ 565 b43_read32(dev, B43_MMIO_MACCTL); 566} 567 568static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf) 569{ 570 u32 low, high; 571 572 B43_WARN_ON(dev->dev->id.revision < 3); 573 574 low = tsf; 575 high = (tsf >> 32); 576 /* The hardware guarantees us an atomic write, if we 577 * write the low register first. */ 578 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low); 579 mmiowb(); 580 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high); 581 mmiowb(); 582} 583 584void b43_tsf_write(struct b43_wldev *dev, u64 tsf) 585{ 586 b43_time_lock(dev); 587 b43_tsf_write_locked(dev, tsf); 588 b43_time_unlock(dev); 589} 590 591static 592void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 * mac) 593{ 594 static const u8 zero_addr[ETH_ALEN] = { 0 }; 595 u16 data; 596 597 if (!mac) 598 mac = zero_addr; 599 600 offset |= 0x0020; 601 b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset); 602 603 data = mac[0]; 604 data |= mac[1] << 8; 605 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); 606 data = mac[2]; 607 data |= mac[3] << 8; 608 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); 609 data = mac[4]; 610 data |= mac[5] << 8; 611 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); 612} 613 614static void b43_write_mac_bssid_templates(struct b43_wldev *dev) 615{ 616 const u8 *mac; 617 const u8 *bssid; 618 u8 mac_bssid[ETH_ALEN * 2]; 619 int i; 620 u32 tmp; 621 622 bssid = dev->wl->bssid; 623 mac = dev->wl->mac_addr; 624 625 b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid); 626 627 memcpy(mac_bssid, mac, ETH_ALEN); 628 memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); 629 630 /* Write our MAC address and BSSID to template ram */ 631 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) { 632 tmp = (u32) (mac_bssid[i + 0]); 633 tmp |= (u32) (mac_bssid[i + 1]) << 8; 634 tmp |= (u32) (mac_bssid[i + 2]) << 16; 635 tmp |= (u32) (mac_bssid[i + 3]) << 24; 636 b43_ram_write(dev, 0x20 + i, tmp); 637 } 638} 639 640static void b43_upload_card_macaddress(struct b43_wldev *dev) 641{ 642 b43_write_mac_bssid_templates(dev); 643 b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr); 644} 645 646static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) 647{ 648 /* slot_time is in usec. */ 649 if (dev->phy.type != B43_PHYTYPE_G) 650 return; 651 b43_write16(dev, 0x684, 510 + slot_time); 652 b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); 653} 654 655static void b43_short_slot_timing_enable(struct b43_wldev *dev) 656{ 657 b43_set_slot_time(dev, 9); 658} 659 660static void b43_short_slot_timing_disable(struct b43_wldev *dev) 661{ 662 b43_set_slot_time(dev, 20); 663} 664 665/* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable. 666 * Returns the _previously_ enabled IRQ mask. 667 */ 668static inline u32 b43_interrupt_enable(struct b43_wldev *dev, u32 mask) 669{ 670 u32 old_mask; 671 672 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); 673 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask | mask); 674 675 return old_mask; 676} 677 678/* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable. 679 * Returns the _previously_ enabled IRQ mask. 680 */ 681static inline u32 b43_interrupt_disable(struct b43_wldev *dev, u32 mask) 682{ 683 u32 old_mask; 684 685 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); 686 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask & ~mask); 687 688 return old_mask; 689} 690 691/* Synchronize IRQ top- and bottom-half. 692 * IRQs must be masked before calling this. 693 * This must not be called with the irq_lock held. 694 */ 695static void b43_synchronize_irq(struct b43_wldev *dev) 696{ 697 synchronize_irq(dev->dev->irq); 698 tasklet_kill(&dev->isr_tasklet); 699} 700 701/* DummyTransmission function, as documented on 702 * http://bcm-specs.sipsolutions.net/DummyTransmission 703 */ 704void b43_dummy_transmission(struct b43_wldev *dev) 705{ 706 struct b43_wl *wl = dev->wl; 707 struct b43_phy *phy = &dev->phy; 708 unsigned int i, max_loop; 709 u16 value; 710 u32 buffer[5] = { 711 0x00000000, 712 0x00D40000, 713 0x00000000, 714 0x01000000, 715 0x00000000, 716 }; 717 718 switch (phy->type) { 719 case B43_PHYTYPE_A: 720 max_loop = 0x1E; 721 buffer[0] = 0x000201CC; 722 break; 723 case B43_PHYTYPE_B: 724 case B43_PHYTYPE_G: 725 max_loop = 0xFA; 726 buffer[0] = 0x000B846E; 727 break; 728 default: 729 B43_WARN_ON(1); 730 return; 731 } 732 733 spin_lock_irq(&wl->irq_lock); 734 write_lock(&wl->tx_lock); 735 736 for (i = 0; i < 5; i++) 737 b43_ram_write(dev, i * 4, buffer[i]); 738 739 /* Commit writes */ 740 b43_read32(dev, B43_MMIO_MACCTL); 741 742 b43_write16(dev, 0x0568, 0x0000); 743 b43_write16(dev, 0x07C0, 0x0000); 744 value = ((phy->type == B43_PHYTYPE_A) ? 1 : 0); 745 b43_write16(dev, 0x050C, value); 746 b43_write16(dev, 0x0508, 0x0000); 747 b43_write16(dev, 0x050A, 0x0000); 748 b43_write16(dev, 0x054C, 0x0000); 749 b43_write16(dev, 0x056A, 0x0014); 750 b43_write16(dev, 0x0568, 0x0826); 751 b43_write16(dev, 0x0500, 0x0000); 752 b43_write16(dev, 0x0502, 0x0030); 753 754 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) 755 b43_radio_write16(dev, 0x0051, 0x0017); 756 for (i = 0x00; i < max_loop; i++) { 757 value = b43_read16(dev, 0x050E); 758 if (value & 0x0080) 759 break; 760 udelay(10); 761 } 762 for (i = 0x00; i < 0x0A; i++) { 763 value = b43_read16(dev, 0x050E); 764 if (value & 0x0400) 765 break; 766 udelay(10); 767 } 768 for (i = 0x00; i < 0x19; i++) { 769 value = b43_read16(dev, 0x0690); 770 if (!(value & 0x0100)) 771 break; 772 udelay(10); 773 } 774 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) 775 b43_radio_write16(dev, 0x0051, 0x0037); 776 777 write_unlock(&wl->tx_lock); 778 spin_unlock_irq(&wl->irq_lock); 779} 780 781static void key_write(struct b43_wldev *dev, 782 u8 index, u8 algorithm, const u8 * key) 783{ 784 unsigned int i; 785 u32 offset; 786 u16 value; 787 u16 kidx; 788 789 /* Key index/algo block */ 790 kidx = b43_kidx_to_fw(dev, index); 791 value = ((kidx << 4) | algorithm); 792 b43_shm_write16(dev, B43_SHM_SHARED, 793 B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value); 794 795 /* Write the key to the Key Table Pointer offset */ 796 offset = dev->ktp + (index * B43_SEC_KEYSIZE); 797 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { 798 value = key[i]; 799 value |= (u16) (key[i + 1]) << 8; 800 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value); 801 } 802} 803 804static void keymac_write(struct b43_wldev *dev, u8 index, const u8 * addr) 805{ 806 u32 addrtmp[2] = { 0, 0, }; 807 u8 per_sta_keys_start = 8; 808 809 if (b43_new_kidx_api(dev)) 810 per_sta_keys_start = 4; 811 812 B43_WARN_ON(index < per_sta_keys_start); 813 /* We have two default TX keys and possibly two default RX keys. 814 * Physical mac 0 is mapped to physical key 4 or 8, depending 815 * on the firmware version. 816 * So we must adjust the index here. 817 */ 818 index -= per_sta_keys_start; 819 820 if (addr) { 821 addrtmp[0] = addr[0]; 822 addrtmp[0] |= ((u32) (addr[1]) << 8); 823 addrtmp[0] |= ((u32) (addr[2]) << 16); 824 addrtmp[0] |= ((u32) (addr[3]) << 24); 825 addrtmp[1] = addr[4]; 826 addrtmp[1] |= ((u32) (addr[5]) << 8); 827 } 828 829 if (dev->dev->id.revision >= 5) { 830 /* Receive match transmitter address mechanism */ 831 b43_shm_write32(dev, B43_SHM_RCMTA, 832 (index * 2) + 0, addrtmp[0]); 833 b43_shm_write16(dev, B43_SHM_RCMTA, 834 (index * 2) + 1, addrtmp[1]); 835 } else { 836 /* RXE (Receive Engine) and 837 * PSM (Programmable State Machine) mechanism 838 */ 839 if (index < 8) { 840 /* TODO write to RCM 16, 19, 22 and 25 */ 841 } else { 842 b43_shm_write32(dev, B43_SHM_SHARED, 843 B43_SHM_SH_PSM + (index * 6) + 0, 844 addrtmp[0]); 845 b43_shm_write16(dev, B43_SHM_SHARED, 846 B43_SHM_SH_PSM + (index * 6) + 4, 847 addrtmp[1]); 848 } 849 } 850} 851 852static void do_key_write(struct b43_wldev *dev, 853 u8 index, u8 algorithm, 854 const u8 * key, size_t key_len, const u8 * mac_addr) 855{ 856 u8 buf[B43_SEC_KEYSIZE] = { 0, }; 857 u8 per_sta_keys_start = 8; 858 859 if (b43_new_kidx_api(dev)) 860 per_sta_keys_start = 4; 861 862 B43_WARN_ON(index >= dev->max_nr_keys); 863 B43_WARN_ON(key_len > B43_SEC_KEYSIZE); 864 865 if (index >= per_sta_keys_start) 866 keymac_write(dev, index, NULL); /* First zero out mac. */ 867 if (key) 868 memcpy(buf, key, key_len); 869 key_write(dev, index, algorithm, buf); 870 if (index >= per_sta_keys_start) 871 keymac_write(dev, index, mac_addr); 872 873 dev->key[index].algorithm = algorithm; 874} 875 876static int b43_key_write(struct b43_wldev *dev, 877 int index, u8 algorithm, 878 const u8 * key, size_t key_len, 879 const u8 * mac_addr, 880 struct ieee80211_key_conf *keyconf) 881{ 882 int i; 883 int sta_keys_start; 884 885 if (key_len > B43_SEC_KEYSIZE) 886 return -EINVAL; 887 for (i = 0; i < dev->max_nr_keys; i++) { 888 /* Check that we don't already have this key. */ 889 B43_WARN_ON(dev->key[i].keyconf == keyconf); 890 } 891 if (index < 0) { 892 /* Pairwise key. Get an empty slot for the key. */ 893 if (b43_new_kidx_api(dev)) 894 sta_keys_start = 4; 895 else 896 sta_keys_start = 8; 897 for (i = sta_keys_start; i < dev->max_nr_keys; i++) { 898 if (!dev->key[i].keyconf) { 899 /* found empty */ 900 index = i; 901 break; 902 } 903 } 904 if (index < 0) { 905 b43warn(dev->wl, "Out of hardware key memory\n"); 906 return -ENOSPC; 907 } 908 } else 909 B43_WARN_ON(index > 3); 910 911 do_key_write(dev, index, algorithm, key, key_len, mac_addr); 912 if ((index <= 3) && !b43_new_kidx_api(dev)) { 913 /* Default RX key */ 914 B43_WARN_ON(mac_addr); 915 do_key_write(dev, index + 4, algorithm, key, key_len, NULL); 916 } 917 keyconf->hw_key_idx = index; 918 dev->key[index].keyconf = keyconf; 919 920 return 0; 921} 922 923static int b43_key_clear(struct b43_wldev *dev, int index) 924{ 925 if (B43_WARN_ON((index < 0) || (index >= dev->max_nr_keys))) 926 return -EINVAL; 927 do_key_write(dev, index, B43_SEC_ALGO_NONE, 928 NULL, B43_SEC_KEYSIZE, NULL); 929 if ((index <= 3) && !b43_new_kidx_api(dev)) { 930 do_key_write(dev, index + 4, B43_SEC_ALGO_NONE, 931 NULL, B43_SEC_KEYSIZE, NULL); 932 } 933 dev->key[index].keyconf = NULL; 934 935 return 0; 936} 937 938static void b43_clear_keys(struct b43_wldev *dev) 939{ 940 int i; 941 942 for (i = 0; i < dev->max_nr_keys; i++) 943 b43_key_clear(dev, i); 944} 945 946static void b43_dump_keymemory(struct b43_wldev *dev) 947{ 948 unsigned int i, index, offset; 949 DECLARE_MAC_BUF(macbuf); 950 u8 mac[ETH_ALEN]; 951 u16 algo; 952 u32 rcmta0; 953 u16 rcmta1; 954 u64 hf; 955 struct b43_key *key; 956 957 if (!b43_debug(dev, B43_DBG_KEYS)) 958 return; 959 960 hf = b43_hf_read(dev); 961 b43dbg(dev->wl, "Hardware key memory dump: USEDEFKEYS=%u\n", 962 !!(hf & B43_HF_USEDEFKEYS)); 963 for (index = 0; index < dev->max_nr_keys; index++) { 964 key = &(dev->key[index]); 965 printk(KERN_DEBUG "Key slot %02u: %s", 966 index, (key->keyconf == NULL) ? " " : "*"); 967 offset = dev->ktp + (index * B43_SEC_KEYSIZE); 968 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { 969 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); 970 printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); 971 } 972 973 algo = b43_shm_read16(dev, B43_SHM_SHARED, 974 B43_SHM_SH_KEYIDXBLOCK + (index * 2)); 975 printk(" Algo: %04X/%02X", algo, key->algorithm); 976 977 if (index >= 4) { 978 rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA, 979 ((index - 4) * 2) + 0); 980 rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA, 981 ((index - 4) * 2) + 1); 982 *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0); 983 *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1); 984 printk(" MAC: %s", 985 print_mac(macbuf, mac)); 986 } else 987 printk(" DEFAULT KEY"); 988 printk("\n"); 989 } 990} 991 992void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags) 993{ 994 u32 macctl; 995 u16 ucstat; 996 bool hwps; 997 bool awake; 998 int i; 999 1000 B43_WARN_ON((ps_flags & B43_PS_ENABLED) && 1001 (ps_flags & B43_PS_DISABLED)); 1002 B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP)); 1003 1004 if (ps_flags & B43_PS_ENABLED) { 1005 hwps = 1; 1006 } else if (ps_flags & B43_PS_DISABLED) { 1007 hwps = 0; 1008 } else { 1009 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc 1010 // and thus is not an AP and we are associated, set bit 25 1011 } 1012 if (ps_flags & B43_PS_AWAKE) { 1013 awake = 1; 1014 } else if (ps_flags & B43_PS_ASLEEP) { 1015 awake = 0; 1016 } else { 1017 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME, 1018 // or we are associated, or FIXME, or the latest PS-Poll packet sent was 1019 // successful, set bit26 1020 } 1021 1022/* FIXME: For now we force awake-on and hwps-off */ 1023 hwps = 0; 1024 awake = 1; 1025 1026 macctl = b43_read32(dev, B43_MMIO_MACCTL); 1027 if (hwps) 1028 macctl |= B43_MACCTL_HWPS; 1029 else 1030 macctl &= ~B43_MACCTL_HWPS; 1031 if (awake) 1032 macctl |= B43_MACCTL_AWAKE; 1033 else 1034 macctl &= ~B43_MACCTL_AWAKE; 1035 b43_write32(dev, B43_MMIO_MACCTL, macctl); 1036 /* Commit write */ 1037 b43_read32(dev, B43_MMIO_MACCTL); 1038 if (awake && dev->dev->id.revision >= 5) { 1039 /* Wait for the microcode to wake up. */ 1040 for (i = 0; i < 100; i++) { 1041 ucstat = b43_shm_read16(dev, B43_SHM_SHARED, 1042 B43_SHM_SH_UCODESTAT); 1043 if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP) 1044 break; 1045 udelay(10); 1046 } 1047 } 1048} 1049 1050void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags) 1051{ 1052 u32 tmslow; 1053 u32 macctl; 1054 1055 flags |= B43_TMSLOW_PHYCLKEN; 1056 flags |= B43_TMSLOW_PHYRESET; 1057 ssb_device_enable(dev->dev, flags); 1058 msleep(2); /* Wait for the PLL to turn on. */ 1059 1060 /* Now take the PHY out of Reset again */ 1061 tmslow = ssb_read32(dev->dev, SSB_TMSLOW); 1062 tmslow |= SSB_TMSLOW_FGC; 1063 tmslow &= ~B43_TMSLOW_PHYRESET; 1064 ssb_write32(dev->dev, SSB_TMSLOW, tmslow); 1065 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ 1066 msleep(1); 1067 tmslow &= ~SSB_TMSLOW_FGC; 1068 ssb_write32(dev->dev, SSB_TMSLOW, tmslow); 1069 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ 1070 msleep(1); 1071 1072 /* Turn Analog ON, but only if we already know the PHY-type. 1073 * This protects against very early setup where we don't know the 1074 * PHY-type, yet. wireless_core_reset will be called once again later, 1075 * when we know the PHY-type. */ 1076 if (dev->phy.ops) 1077 dev->phy.ops->switch_analog(dev, 1); 1078 1079 macctl = b43_read32(dev, B43_MMIO_MACCTL); 1080 macctl &= ~B43_MACCTL_GMODE; 1081 if (flags & B43_TMSLOW_GMODE) 1082 macctl |= B43_MACCTL_GMODE; 1083 macctl |= B43_MACCTL_IHR_ENABLED; 1084 b43_write32(dev, B43_MMIO_MACCTL, macctl); 1085} 1086 1087static void handle_irq_transmit_status(struct b43_wldev *dev) 1088{ 1089 u32 v0, v1; 1090 u16 tmp; 1091 struct b43_txstatus stat; 1092 1093 while (1) { 1094 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0); 1095 if (!(v0 & 0x00000001)) 1096 break; 1097 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1); 1098 1099 stat.cookie = (v0 >> 16); 1100 stat.seq = (v1 & 0x0000FFFF); 1101 stat.phy_stat = ((v1 & 0x00FF0000) >> 16); 1102 tmp = (v0 & 0x0000FFFF); 1103 stat.frame_count = ((tmp & 0xF000) >> 12); 1104 stat.rts_count = ((tmp & 0x0F00) >> 8); 1105 stat.supp_reason = ((tmp & 0x001C) >> 2); 1106 stat.pm_indicated = !!(tmp & 0x0080); 1107 stat.intermediate = !!(tmp & 0x0040); 1108 stat.for_ampdu = !!(tmp & 0x0020); 1109 stat.acked = !!(tmp & 0x0002); 1110 1111 b43_handle_txstatus(dev, &stat); 1112 } 1113} 1114 1115static void drain_txstatus_queue(struct b43_wldev *dev) 1116{ 1117 u32 dummy; 1118 1119 if (dev->dev->id.revision < 5) 1120 return; 1121 /* Read all entries from the microcode TXstatus FIFO 1122 * and throw them away. 1123 */ 1124 while (1) { 1125 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0); 1126 if (!(dummy & 0x00000001)) 1127 break; 1128 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1); 1129 } 1130} 1131 1132static u32 b43_jssi_read(struct b43_wldev *dev) 1133{ 1134 u32 val = 0; 1135 1136 val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A); 1137 val <<= 16; 1138 val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088); 1139 1140 return val; 1141} 1142 1143static void b43_jssi_write(struct b43_wldev *dev, u32 jssi) 1144{ 1145 b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF)); 1146 b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16); 1147} 1148 1149static void b43_generate_noise_sample(struct b43_wldev *dev) 1150{ 1151 b43_jssi_write(dev, 0x7F7F7F7F); 1152 b43_write32(dev, B43_MMIO_MACCMD, 1153 b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE); 1154} 1155 1156static void b43_calculate_link_quality(struct b43_wldev *dev) 1157{ 1158 /* Top half of Link Quality calculation. */ 1159 1160 if (dev->phy.type != B43_PHYTYPE_G) 1161 return; 1162 if (dev->noisecalc.calculation_running) 1163 return; 1164 dev->noisecalc.calculation_running = 1; 1165 dev->noisecalc.nr_samples = 0; 1166 1167 b43_generate_noise_sample(dev); 1168} 1169 1170static void handle_irq_noise(struct b43_wldev *dev) 1171{ 1172 struct b43_phy_g *phy = dev->phy.g; 1173 u16 tmp; 1174 u8 noise[4]; 1175 u8 i, j; 1176 s32 average; 1177 1178 /* Bottom half of Link Quality calculation. */ 1179 1180 if (dev->phy.type != B43_PHYTYPE_G) 1181 return; 1182 1183 /* Possible race condition: It might be possible that the user 1184 * changed to a different channel in the meantime since we 1185 * started the calculation. We ignore that fact, since it's 1186 * not really that much of a problem. The background noise is 1187 * an estimation only anyway. Slightly wrong results will get damped 1188 * by the averaging of the 8 sample rounds. Additionally the 1189 * value is shortlived. So it will be replaced by the next noise 1190 * calculation round soon. */ 1191 1192 B43_WARN_ON(!dev->noisecalc.calculation_running); 1193 *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev)); 1194 if (noise[0] == 0x7F || noise[1] == 0x7F || 1195 noise[2] == 0x7F || noise[3] == 0x7F) 1196 goto generate_new; 1197 1198 /* Get the noise samples. */ 1199 B43_WARN_ON(dev->noisecalc.nr_samples >= 8); 1200 i = dev->noisecalc.nr_samples; 1201 noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); 1202 noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); 1203 noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); 1204 noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); 1205 dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]]; 1206 dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]]; 1207 dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]]; 1208 dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]]; 1209 dev->noisecalc.nr_samples++; 1210 if (dev->noisecalc.nr_samples == 8) { 1211 /* Calculate the Link Quality by the noise samples. */ 1212 average = 0; 1213 for (i = 0; i < 8; i++) { 1214 for (j = 0; j < 4; j++) 1215 average += dev->noisecalc.samples[i][j]; 1216 } 1217 average /= (8 * 4); 1218 average *= 125; 1219 average += 64; 1220 average /= 128; 1221 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C); 1222 tmp = (tmp / 128) & 0x1F; 1223 if (tmp >= 8) 1224 average += 2; 1225 else 1226 average -= 25; 1227 if (tmp == 8) 1228 average -= 72; 1229 else 1230 average -= 48; 1231 1232 dev->stats.link_noise = average; 1233 dev->noisecalc.calculation_running = 0; 1234 return; 1235 } 1236generate_new: 1237 b43_generate_noise_sample(dev); 1238} 1239 1240static void handle_irq_tbtt_indication(struct b43_wldev *dev) 1241{ 1242 if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) { 1243 ///TODO: PS TBTT 1244 } else { 1245 if (1 /*FIXME: the last PSpoll frame was sent successfully */ ) 1246 b43_power_saving_ctl_bits(dev, 0); 1247 } 1248 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) 1249 dev->dfq_valid = 1; 1250} 1251 1252static void handle_irq_atim_end(struct b43_wldev *dev) 1253{ 1254 if (dev->dfq_valid) { 1255 b43_write32(dev, B43_MMIO_MACCMD, 1256 b43_read32(dev, B43_MMIO_MACCMD) 1257 | B43_MACCMD_DFQ_VALID); 1258 dev->dfq_valid = 0; 1259 } 1260} 1261 1262static void handle_irq_pmq(struct b43_wldev *dev) 1263{ 1264 u32 tmp; 1265 1266 //TODO: AP mode. 1267 1268 while (1) { 1269 tmp = b43_read32(dev, B43_MMIO_PS_STATUS); 1270 if (!(tmp & 0x00000008)) 1271 break; 1272 } 1273 /* 16bit write is odd, but correct. */ 1274 b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002); 1275} 1276 1277static void b43_write_template_common(struct b43_wldev *dev, 1278 const u8 * data, u16 size, 1279 u16 ram_offset, 1280 u16 shm_size_offset, u8 rate) 1281{ 1282 u32 i, tmp; 1283 struct b43_plcp_hdr4 plcp; 1284 1285 plcp.data = 0; 1286 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); 1287 b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data)); 1288 ram_offset += sizeof(u32); 1289 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet. 1290 * So leave the first two bytes of the next write blank. 1291 */ 1292 tmp = (u32) (data[0]) << 16; 1293 tmp |= (u32) (data[1]) << 24; 1294 b43_ram_write(dev, ram_offset, tmp); 1295 ram_offset += sizeof(u32); 1296 for (i = 2; i < size; i += sizeof(u32)) { 1297 tmp = (u32) (data[i + 0]); 1298 if (i + 1 < size) 1299 tmp |= (u32) (data[i + 1]) << 8; 1300 if (i + 2 < size) 1301 tmp |= (u32) (data[i + 2]) << 16; 1302 if (i + 3 < size) 1303 tmp |= (u32) (data[i + 3]) << 24; 1304 b43_ram_write(dev, ram_offset + i - 2, tmp); 1305 } 1306 b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset, 1307 size + sizeof(struct b43_plcp_hdr6)); 1308} 1309 1310/* Check if the use of the antenna that ieee80211 told us to 1311 * use is possible. This will fall back to DEFAULT. 1312 * "antenna_nr" is the antenna identifier we got from ieee80211. */ 1313u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev, 1314 u8 antenna_nr) 1315{ 1316 u8 antenna_mask; 1317 1318 if (antenna_nr == 0) { 1319 /* Zero means "use default antenna". That's always OK. */ 1320 return 0; 1321 } 1322 1323 /* Get the mask of available antennas. */ 1324 if (dev->phy.gmode) 1325 antenna_mask = dev->dev->bus->sprom.ant_available_bg; 1326 else 1327 antenna_mask = dev->dev->bus->sprom.ant_available_a; 1328 1329 if (!(antenna_mask & (1 << (antenna_nr - 1)))) { 1330 /* This antenna is not available. Fall back to default. */ 1331 return 0; 1332 } 1333 1334 return antenna_nr; 1335} 1336 1337/* Convert a b43 antenna number value to the PHY TX control value. */ 1338static u16 b43_antenna_to_phyctl(int antenna) 1339{ 1340 switch (antenna) { 1341 case B43_ANTENNA0: 1342 return B43_TXH_PHY_ANT0; 1343 case B43_ANTENNA1: 1344 return B43_TXH_PHY_ANT1; 1345 case B43_ANTENNA2: 1346 return B43_TXH_PHY_ANT2; 1347 case B43_ANTENNA3: 1348 return B43_TXH_PHY_ANT3; 1349 case B43_ANTENNA_AUTO: 1350 return B43_TXH_PHY_ANT01AUTO; 1351 } 1352 B43_WARN_ON(1); 1353 return 0; 1354} 1355 1356static void b43_write_beacon_template(struct b43_wldev *dev, 1357 u16 ram_offset, 1358 u16 shm_size_offset) 1359{ 1360 unsigned int i, len, variable_len; 1361 const struct ieee80211_mgmt *bcn; 1362 const u8 *ie; 1363 bool tim_found = 0; 1364 unsigned int rate; 1365 u16 ctl; 1366 int antenna; 1367 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon); 1368 1369 bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data); 1370 len = min((size_t) dev->wl->current_beacon->len, 1371 0x200 - sizeof(struct b43_plcp_hdr6)); 1372 rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value; 1373 1374 b43_write_template_common(dev, (const u8 *)bcn, 1375 len, ram_offset, shm_size_offset, rate); 1376 1377 /* Write the PHY TX control parameters. */ 1378 antenna = B43_ANTENNA_DEFAULT; 1379 antenna = b43_antenna_to_phyctl(antenna); 1380 ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL); 1381 /* We can't send beacons with short preamble. Would get PHY errors. */ 1382 ctl &= ~B43_TXH_PHY_SHORTPRMBL; 1383 ctl &= ~B43_TXH_PHY_ANT; 1384 ctl &= ~B43_TXH_PHY_ENC; 1385 ctl |= antenna; 1386 if (b43_is_cck_rate(rate)) 1387 ctl |= B43_TXH_PHY_ENC_CCK; 1388 else 1389 ctl |= B43_TXH_PHY_ENC_OFDM; 1390 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); 1391 1392 /* Find the position of the TIM and the DTIM_period value 1393 * and write them to SHM. */ 1394 ie = bcn->u.beacon.variable; 1395 variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable); 1396 for (i = 0; i < variable_len - 2; ) { 1397 uint8_t ie_id, ie_len; 1398 1399 ie_id = ie[i]; 1400 ie_len = ie[i + 1]; 1401 if (ie_id == 5) { 1402 u16 tim_position; 1403 u16 dtim_period; 1404 /* This is the TIM Information Element */ 1405 1406 /* Check whether the ie_len is in the beacon data range. */ 1407 if (variable_len < ie_len + 2 + i) 1408 break; 1409 /* A valid TIM is at least 4 bytes long. */ 1410 if (ie_len < 4) 1411 break; 1412 tim_found = 1; 1413 1414 tim_position = sizeof(struct b43_plcp_hdr6); 1415 tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable); 1416 tim_position += i; 1417 1418 dtim_period = ie[i + 3]; 1419 1420 b43_shm_write16(dev, B43_SHM_SHARED, 1421 B43_SHM_SH_TIMBPOS, tim_position); 1422 b43_shm_write16(dev, B43_SHM_SHARED, 1423 B43_SHM_SH_DTIMPER, dtim_period); 1424 break; 1425 } 1426 i += ie_len + 2; 1427 } 1428 if (!tim_found) { 1429 /* 1430 * If ucode wants to modify TIM do it behind the beacon, this 1431 * will happen, for example, when doing mesh networking. 1432 */ 1433 b43_shm_write16(dev, B43_SHM_SHARED, 1434 B43_SHM_SH_TIMBPOS, 1435 len + sizeof(struct b43_plcp_hdr6)); 1436 b43_shm_write16(dev, B43_SHM_SHARED, 1437 B43_SHM_SH_DTIMPER, 0); 1438 } 1439 b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset); 1440} 1441 1442static void b43_write_probe_resp_plcp(struct b43_wldev *dev, 1443 u16 shm_offset, u16 size, 1444 struct ieee80211_rate *rate) 1445{ 1446 struct b43_plcp_hdr4 plcp; 1447 u32 tmp; 1448 __le16 dur; 1449 1450 plcp.data = 0; 1451 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value); 1452 dur = ieee80211_generic_frame_duration(dev->wl->hw, 1453 dev->wl->vif, size, 1454 rate); 1455 /* Write PLCP in two parts and timing for packet transfer */ 1456 tmp = le32_to_cpu(plcp.data); 1457 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF); 1458 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 2, tmp >> 16); 1459 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 6, le16_to_cpu(dur)); 1460} 1461 1462/* Instead of using custom probe response template, this function 1463 * just patches custom beacon template by: 1464 * 1) Changing packet type 1465 * 2) Patching duration field 1466 * 3) Stripping TIM 1467 */ 1468static const u8 * b43_generate_probe_resp(struct b43_wldev *dev, 1469 u16 *dest_size, 1470 struct ieee80211_rate *rate) 1471{ 1472 const u8 *src_data; 1473 u8 *dest_data; 1474 u16 src_size, elem_size, src_pos, dest_pos; 1475 __le16 dur; 1476 struct ieee80211_hdr *hdr; 1477 size_t ie_start; 1478 1479 src_size = dev->wl->current_beacon->len; 1480 src_data = (const u8 *)dev->wl->current_beacon->data; 1481 1482 /* Get the start offset of the variable IEs in the packet. */ 1483 ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); 1484 B43_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt, u.beacon.variable)); 1485 1486 if (B43_WARN_ON(src_size < ie_start)) 1487 return NULL; 1488 1489 dest_data = kmalloc(src_size, GFP_ATOMIC); 1490 if (unlikely(!dest_data)) 1491 return NULL; 1492 1493 /* Copy the static data and all Information Elements, except the TIM. */ 1494 memcpy(dest_data, src_data, ie_start); 1495 src_pos = ie_start; 1496 dest_pos = ie_start; 1497 for ( ; src_pos < src_size - 2; src_pos += elem_size) { 1498 elem_size = src_data[src_pos + 1] + 2; 1499 if (src_data[src_pos] == 5) { 1500 /* This is the TIM. */ 1501 continue; 1502 } 1503 memcpy(dest_data + dest_pos, src_data + src_pos, 1504 elem_size); 1505 dest_pos += elem_size; 1506 } 1507 *dest_size = dest_pos; 1508 hdr = (struct ieee80211_hdr *)dest_data; 1509 1510 /* Set the frame control. */ 1511 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 1512 IEEE80211_STYPE_PROBE_RESP); 1513 dur = ieee80211_generic_frame_duration(dev->wl->hw, 1514 dev->wl->vif, *dest_size, 1515 rate); 1516 hdr->duration_id = dur; 1517 1518 return dest_data; 1519} 1520 1521static void b43_write_probe_resp_template(struct b43_wldev *dev, 1522 u16 ram_offset, 1523 u16 shm_size_offset, 1524 struct ieee80211_rate *rate) 1525{ 1526 const u8 *probe_resp_data; 1527 u16 size; 1528 1529 size = dev->wl->current_beacon->len; 1530 probe_resp_data = b43_generate_probe_resp(dev, &size, rate); 1531 if (unlikely(!probe_resp_data)) 1532 return; 1533 1534 /* Looks like PLCP headers plus packet timings are stored for 1535 * all possible basic rates 1536 */ 1537 b43_write_probe_resp_plcp(dev, 0x31A, size, &b43_b_ratetable[0]); 1538 b43_write_probe_resp_plcp(dev, 0x32C, size, &b43_b_ratetable[1]); 1539 b43_write_probe_resp_plcp(dev, 0x33E, size, &b43_b_ratetable[2]); 1540 b43_write_probe_resp_plcp(dev, 0x350, size, &b43_b_ratetable[3]); 1541 1542 size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6)); 1543 b43_write_template_common(dev, probe_resp_data, 1544 size, ram_offset, shm_size_offset, 1545 rate->hw_value); 1546 kfree(probe_resp_data); 1547} 1548 1549static void b43_upload_beacon0(struct b43_wldev *dev) 1550{ 1551 struct b43_wl *wl = dev->wl; 1552 1553 if (wl->beacon0_uploaded) 1554 return; 1555 b43_write_beacon_template(dev, 0x68, 0x18); 1556 /* FIXME: Probe resp upload doesn't really belong here, 1557 * but we don't use that feature anyway. */ 1558 b43_write_probe_resp_template(dev, 0x268, 0x4A, 1559 &__b43_ratetable[3]); 1560 wl->beacon0_uploaded = 1; 1561} 1562 1563static void b43_upload_beacon1(struct b43_wldev *dev) 1564{ 1565 struct b43_wl *wl = dev->wl; 1566 1567 if (wl->beacon1_uploaded) 1568 return; 1569 b43_write_beacon_template(dev, 0x468, 0x1A); 1570 wl->beacon1_uploaded = 1; 1571} 1572 1573static void handle_irq_beacon(struct b43_wldev *dev) 1574{ 1575 struct b43_wl *wl = dev->wl; 1576 u32 cmd, beacon0_valid, beacon1_valid; 1577 1578 if (!b43_is_mode(wl, NL80211_IFTYPE_AP) && 1579 !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) 1580 return; 1581 1582 /* This is the bottom half of the asynchronous beacon update. */ 1583 1584 /* Ignore interrupt in the future. */ 1585 dev->irq_savedstate &= ~B43_IRQ_BEACON; 1586 1587 cmd = b43_read32(dev, B43_MMIO_MACCMD); 1588 beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); 1589 beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID); 1590 1591 /* Schedule interrupt manually, if busy. */ 1592 if (beacon0_valid && beacon1_valid) { 1593 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); 1594 dev->irq_savedstate |= B43_IRQ_BEACON; 1595 return; 1596 } 1597 1598 if (unlikely(wl->beacon_templates_virgin)) { 1599 /* We never uploaded a beacon before. 1600 * Upload both templates now, but only mark one valid. */ 1601 wl->beacon_templates_virgin = 0; 1602 b43_upload_beacon0(dev); 1603 b43_upload_beacon1(dev); 1604 cmd = b43_read32(dev, B43_MMIO_MACCMD); 1605 cmd |= B43_MACCMD_BEACON0_VALID; 1606 b43_write32(dev, B43_MMIO_MACCMD, cmd); 1607 } else { 1608 if (!beacon0_valid) { 1609 b43_upload_beacon0(dev); 1610 cmd = b43_read32(dev, B43_MMIO_MACCMD); 1611 cmd |= B43_MACCMD_BEACON0_VALID; 1612 b43_write32(dev, B43_MMIO_MACCMD, cmd); 1613 } else if (!beacon1_valid) { 1614 b43_upload_beacon1(dev); 1615 cmd = b43_read32(dev, B43_MMIO_MACCMD); 1616 cmd |= B43_MACCMD_BEACON1_VALID; 1617 b43_write32(dev, B43_MMIO_MACCMD, cmd); 1618 } 1619 } 1620} 1621 1622static void b43_beacon_update_trigger_work(struct work_struct *work) 1623{ 1624 struct b43_wl *wl = container_of(work, struct b43_wl, 1625 beacon_update_trigger); 1626 struct b43_wldev *dev; 1627 1628 mutex_lock(&wl->mutex); 1629 dev = wl->current_dev; 1630 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) { 1631 spin_lock_irq(&wl->irq_lock); 1632 /* update beacon right away or defer to irq */ 1633 dev->irq_savedstate = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); 1634 handle_irq_beacon(dev); 1635 /* The handler might have updated the IRQ mask. */ 1636 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 1637 dev->irq_savedstate); 1638 mmiowb(); 1639 spin_unlock_irq(&wl->irq_lock); 1640 } 1641 mutex_unlock(&wl->mutex); 1642} 1643 1644/* Asynchronously update the packet templates in template RAM. 1645 * Locking: Requires wl->irq_lock to be locked. */ 1646static void b43_update_templates(struct b43_wl *wl) 1647{ 1648 struct sk_buff *beacon; 1649 1650 /* This is the top half of the ansynchronous beacon update. 1651 * The bottom half is the beacon IRQ. 1652 * Beacon update must be asynchronous to avoid sending an 1653 * invalid beacon. This can happen for example, if the firmware 1654 * transmits a beacon while we are updating it. */ 1655 1656 /* We could modify the existing beacon and set the aid bit in 1657 * the TIM field, but that would probably require resizing and 1658 * moving of data within the beacon template. 1659 * Simply request a new beacon and let mac80211 do the hard work. */ 1660 beacon = ieee80211_beacon_get(wl->hw, wl->vif); 1661 if (unlikely(!beacon)) 1662 return; 1663 1664 if (wl->current_beacon) 1665 dev_kfree_skb_any(wl->current_beacon); 1666 wl->current_beacon = beacon; 1667 wl->beacon0_uploaded = 0; 1668 wl->beacon1_uploaded = 0; 1669 queue_work(wl->hw->workqueue, &wl->beacon_update_trigger); 1670} 1671 1672static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) 1673{ 1674 b43_time_lock(dev); 1675 if (dev->dev->id.revision >= 3) { 1676 b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16)); 1677 b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10)); 1678 } else { 1679 b43_write16(dev, 0x606, (beacon_int >> 6)); 1680 b43_write16(dev, 0x610, beacon_int); 1681 } 1682 b43_time_unlock(dev); 1683 b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int); 1684} 1685 1686static void b43_handle_firmware_panic(struct b43_wldev *dev) 1687{ 1688 u16 reason; 1689 1690 /* Read the register that contains the reason code for the panic. */ 1691 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG); 1692 b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason); 1693 1694 switch (reason) { 1695 default: 1696 b43dbg(dev->wl, "The panic reason is unknown.\n"); 1697 /* fallthrough */ 1698 case B43_FWPANIC_DIE: 1699 /* Do not restart the controller or firmware. 1700 * The device is nonfunctional from now on. 1701 * Restarting would result in this panic to trigger again, 1702 * so we avoid that recursion. */ 1703 break; 1704 case B43_FWPANIC_RESTART: 1705 b43_controller_restart(dev, "Microcode panic"); 1706 break; 1707 } 1708} 1709 1710static void handle_irq_ucode_debug(struct b43_wldev *dev) 1711{ 1712 unsigned int i, cnt; 1713 u16 reason, marker_id, marker_line; 1714 __le16 *buf; 1715 1716 /* The proprietary firmware doesn't have this IRQ. */ 1717 if (!dev->fw.opensource) 1718 return; 1719 1720 /* Read the register that contains the reason code for this IRQ. */ 1721 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG); 1722 1723 switch (reason) { 1724 case B43_DEBUGIRQ_PANIC: 1725 b43_handle_firmware_panic(dev); 1726 break; 1727 case B43_DEBUGIRQ_DUMP_SHM: 1728 if (!B43_DEBUG) 1729 break; /* Only with driver debugging enabled. */ 1730 buf = kmalloc(4096, GFP_ATOMIC); 1731 if (!buf) { 1732 b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n"); 1733 goto out; 1734 } 1735 for (i = 0; i < 4096; i += 2) { 1736 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i); 1737 buf[i / 2] = cpu_to_le16(tmp); 1738 } 1739 b43info(dev->wl, "Shared memory dump:\n"); 1740 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 1741 16, 2, buf, 4096, 1); 1742 kfree(buf); 1743 break; 1744 case B43_DEBUGIRQ_DUMP_REGS: 1745 if (!B43_DEBUG) 1746 break; /* Only with driver debugging enabled. */ 1747 b43info(dev->wl, "Microcode register dump:\n"); 1748 for (i = 0, cnt = 0; i < 64; i++) { 1749 u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i); 1750 if (cnt == 0) 1751 printk(KERN_INFO); 1752 printk("r%02u: 0x%04X ", i, tmp); 1753 cnt++; 1754 if (cnt == 6) { 1755 printk("\n"); 1756 cnt = 0; 1757 } 1758 } 1759 printk("\n"); 1760 break; 1761 case B43_DEBUGIRQ_MARKER: 1762 if (!B43_DEBUG) 1763 break; /* Only with driver debugging enabled. */ 1764 marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH, 1765 B43_MARKER_ID_REG); 1766 marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH, 1767 B43_MARKER_LINE_REG); 1768 b43info(dev->wl, "The firmware just executed the MARKER(%u) " 1769 "at line number %u\n", 1770 marker_id, marker_line); 1771 break; 1772 default: 1773 b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n", 1774 reason); 1775 } 1776out: 1777 /* Acknowledge the debug-IRQ, so the firmware can continue. */ 1778 b43_shm_write16(dev, B43_SHM_SCRATCH, 1779 B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK); 1780} 1781 1782/* Interrupt handler bottom-half */ 1783static void b43_interrupt_tasklet(struct b43_wldev *dev) 1784{ 1785 u32 reason; 1786 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)]; 1787 u32 merged_dma_reason = 0; 1788 int i; 1789 unsigned long flags; 1790 1791 spin_lock_irqsave(&dev->wl->irq_lock, flags); 1792 1793 B43_WARN_ON(b43_status(dev) != B43_STAT_STARTED); 1794 1795 reason = dev->irq_reason; 1796 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) { 1797 dma_reason[i] = dev->dma_reason[i]; 1798 merged_dma_reason |= dma_reason[i]; 1799 } 1800 1801 if (unlikely(reason & B43_IRQ_MAC_TXERR)) 1802 b43err(dev->wl, "MAC transmission error\n"); 1803 1804 if (unlikely(reason & B43_IRQ_PHY_TXERR)) { 1805 b43err(dev->wl, "PHY transmission error\n"); 1806 rmb(); 1807 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) { 1808 atomic_set(&dev->phy.txerr_cnt, 1809 B43_PHY_TX_BADNESS_LIMIT); 1810 b43err(dev->wl, "Too many PHY TX errors, " 1811 "restarting the controller\n"); 1812 b43_controller_restart(dev, "PHY TX errors"); 1813 } 1814 } 1815 1816 if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK | 1817 B43_DMAIRQ_NONFATALMASK))) { 1818 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) { 1819 b43err(dev->wl, "Fatal DMA error: " 1820 "0x%08X, 0x%08X, 0x%08X, " 1821 "0x%08X, 0x%08X, 0x%08X\n", 1822 dma_reason[0], dma_reason[1], 1823 dma_reason[2], dma_reason[3], 1824 dma_reason[4], dma_reason[5]); 1825 b43_controller_restart(dev, "DMA error"); 1826 mmiowb(); 1827 spin_unlock_irqrestore(&dev->wl->irq_lock, flags); 1828 return; 1829 } 1830 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) { 1831 b43err(dev->wl, "DMA error: " 1832 "0x%08X, 0x%08X, 0x%08X, " 1833 "0x%08X, 0x%08X, 0x%08X\n", 1834 dma_reason[0], dma_reason[1], 1835 dma_reason[2], dma_reason[3], 1836 dma_reason[4], dma_reason[5]); 1837 } 1838 } 1839 1840 if (unlikely(reason & B43_IRQ_UCODE_DEBUG)) 1841 handle_irq_ucode_debug(dev); 1842 if (reason & B43_IRQ_TBTT_INDI) 1843 handle_irq_tbtt_indication(dev); 1844 if (reason & B43_IRQ_ATIM_END) 1845 handle_irq_atim_end(dev); 1846 if (reason & B43_IRQ_BEACON) 1847 handle_irq_beacon(dev); 1848 if (reason & B43_IRQ_PMQ) 1849 handle_irq_pmq(dev); 1850 if (reason & B43_IRQ_TXFIFO_FLUSH_OK) 1851 ;/* TODO */ 1852 if (reason & B43_IRQ_NOISESAMPLE_OK) 1853 handle_irq_noise(dev); 1854 1855 /* Check the DMA reason registers for received data. */ 1856 if (dma_reason[0] & B43_DMAIRQ_RX_DONE) { 1857 if (b43_using_pio_transfers(dev)) 1858 b43_pio_rx(dev->pio.rx_queue); 1859 else 1860 b43_dma_rx(dev->dma.rx_ring); 1861 } 1862 B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE); 1863 B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE); 1864 B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE); 1865 B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE); 1866 B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE); 1867 1868 if (reason & B43_IRQ_TX_OK) 1869 handle_irq_transmit_status(dev); 1870 1871 b43_interrupt_enable(dev, dev->irq_savedstate); 1872 mmiowb(); 1873 spin_unlock_irqrestore(&dev->wl->irq_lock, flags); 1874} 1875 1876static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason) 1877{ 1878 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason); 1879 1880 b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]); 1881 b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]); 1882 b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]); 1883 b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]); 1884 b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]); 1885 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]); 1886} 1887 1888/* Interrupt handler top-half */ 1889static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) 1890{ 1891 irqreturn_t ret = IRQ_NONE; 1892 struct b43_wldev *dev = dev_id; 1893 u32 reason; 1894 1895 if (!dev) 1896 return IRQ_NONE; 1897 1898 spin_lock(&dev->wl->irq_lock); 1899 1900 if (b43_status(dev) < B43_STAT_STARTED) 1901 goto out; 1902 reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); 1903 if (reason == 0xffffffff) /* shared IRQ */ 1904 goto out; 1905 ret = IRQ_HANDLED; 1906 reason &= b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); 1907 if (!reason) 1908 goto out; 1909 1910 dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON) 1911 & 0x0001DC00; 1912 dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON) 1913 & 0x0000DC00; 1914 dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON) 1915 & 0x0000DC00; 1916 dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON) 1917 & 0x0001DC00; 1918 dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON) 1919 & 0x0000DC00; 1920 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON) 1921 & 0x0000DC00; 1922 1923 b43_interrupt_ack(dev, reason); 1924 /* disable all IRQs. They are enabled again in the bottom half. */ 1925 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL); 1926 /* save the reason code and call our bottom half. */ 1927 dev->irq_reason = reason; 1928 tasklet_schedule(&dev->isr_tasklet); 1929 out: 1930 mmiowb(); 1931 spin_unlock(&dev->wl->irq_lock); 1932 1933 return ret; 1934} 1935 1936static void do_release_fw(struct b43_firmware_file *fw) 1937{ 1938 release_firmware(fw->data); 1939 fw->data = NULL; 1940 fw->filename = NULL; 1941} 1942 1943static void b43_release_firmware(struct b43_wldev *dev) 1944{ 1945 do_release_fw(&dev->fw.ucode); 1946 do_release_fw(&dev->fw.pcm); 1947 do_release_fw(&dev->fw.initvals); 1948 do_release_fw(&dev->fw.initvals_band); 1949} 1950 1951static void b43_print_fw_helptext(struct b43_wl *wl, bool error) 1952{ 1953 const char *text; 1954 1955 text = "You must go to " 1956 "http://linuxwireless.org/en/users/Drivers/b43#devicefirmware " 1957 "and download the latest firmware (version 4).\n"; 1958 if (error) 1959 b43err(wl, text); 1960 else 1961 b43warn(wl, text); 1962} 1963 1964static int do_request_fw(struct b43_wldev *dev, 1965 const char *name, 1966 struct b43_firmware_file *fw, 1967 bool silent) 1968{ 1969 char path[sizeof(modparam_fwpostfix) + 32]; 1970 const struct firmware *blob; 1971 struct b43_fw_header *hdr; 1972 u32 size; 1973 int err; 1974 1975 if (!name) { 1976 /* Don't fetch anything. Free possibly cached firmware. */ 1977 do_release_fw(fw); 1978 return 0; 1979 } 1980 if (fw->filename) { 1981 if (strcmp(fw->filename, name) == 0) 1982 return 0; /* Already have this fw. */ 1983 /* Free the cached firmware first. */ 1984 do_release_fw(fw); 1985 } 1986 1987 snprintf(path, ARRAY_SIZE(path), 1988 "b43%s/%s.fw", 1989 modparam_fwpostfix, name); 1990 err = request_firmware(&blob, path, dev->dev->dev); 1991 if (err == -ENOENT) { 1992 if (!silent) { 1993 b43err(dev->wl, "Firmware file \"%s\" not found\n", 1994 path); 1995 } 1996 return err; 1997 } else if (err) { 1998 b43err(dev->wl, "Firmware file \"%s\" request failed (err=%d)\n", 1999 path, err); 2000 return err; 2001 } 2002 if (blob->size < sizeof(struct b43_fw_header)) 2003 goto err_format; 2004 hdr = (struct b43_fw_header *)(blob->data); 2005 switch (hdr->type) { 2006 case B43_FW_TYPE_UCODE: 2007 case B43_FW_TYPE_PCM: 2008 size = be32_to_cpu(hdr->size); 2009 if (size != blob->size - sizeof(struct b43_fw_header)) 2010 goto err_format; 2011 /* fallthrough */ 2012 case B43_FW_TYPE_IV: 2013 if (hdr->ver != 1) 2014 goto err_format; 2015 break; 2016 default: 2017 goto err_format; 2018 } 2019 2020 fw->data = blob; 2021 fw->filename = name; 2022 2023 return 0; 2024 2025err_format: 2026 b43err(dev->wl, "Firmware file \"%s\" format error.\n", path); 2027 release_firmware(blob); 2028 2029 return -EPROTO; 2030} 2031 2032static int b43_request_firmware(struct b43_wldev *dev) 2033{ 2034 struct b43_firmware *fw = &dev->fw; 2035 const u8 rev = dev->dev->id.revision; 2036 const char *filename; 2037 u32 tmshigh; 2038 int err; 2039 2040 /* Get microcode */ 2041 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); 2042 if ((rev >= 5) && (rev <= 10)) 2043 filename = "ucode5"; 2044 else if ((rev >= 11) && (rev <= 12)) 2045 filename = "ucode11"; 2046 else if (rev >= 13) 2047 filename = "ucode13"; 2048 else 2049 goto err_no_ucode; 2050 err = do_request_fw(dev, filename, &fw->ucode, 0); 2051 if (err) 2052 goto err_load; 2053 2054 /* Get PCM code */ 2055 if ((rev >= 5) && (rev <= 10)) 2056 filename = "pcm5"; 2057 else if (rev >= 11) 2058 filename = NULL; 2059 else 2060 goto err_no_pcm; 2061 fw->pcm_request_failed = 0; 2062 err = do_request_fw(dev, filename, &fw->pcm, 1); 2063 if (err == -ENOENT) { 2064 /* We did not find a PCM file? Not fatal, but 2065 * core rev <= 10 must do without hwcrypto then. */ 2066 fw->pcm_request_failed = 1; 2067 } else if (err) 2068 goto err_load; 2069 2070 /* Get initvals */ 2071 switch (dev->phy.type) { 2072 case B43_PHYTYPE_A: 2073 if ((rev >= 5) && (rev <= 10)) { 2074 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) 2075 filename = "a0g1initvals5"; 2076 else 2077 filename = "a0g0initvals5"; 2078 } else 2079 goto err_no_initvals; 2080 break; 2081 case B43_PHYTYPE_G: 2082 if ((rev >= 5) && (rev <= 10)) 2083 filename = "b0g0initvals5"; 2084 else if (rev >= 13) 2085 filename = "b0g0initvals13"; 2086 else 2087 goto err_no_initvals; 2088 break; 2089 case B43_PHYTYPE_N: 2090 if ((rev >= 11) && (rev <= 12)) 2091 filename = "n0initvals11"; 2092 else 2093 goto err_no_initvals; 2094 break; 2095 default: 2096 goto err_no_initvals; 2097 } 2098 err = do_request_fw(dev, filename, &fw->initvals, 0); 2099 if (err) 2100 goto err_load; 2101 2102 /* Get bandswitch initvals */ 2103 switch (dev->phy.type) { 2104 case B43_PHYTYPE_A: 2105 if ((rev >= 5) && (rev <= 10)) { 2106 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) 2107 filename = "a0g1bsinitvals5"; 2108 else 2109 filename = "a0g0bsinitvals5"; 2110 } else if (rev >= 11) 2111 filename = NULL; 2112 else 2113 goto err_no_initvals; 2114 break; 2115 case B43_PHYTYPE_G: 2116 if ((rev >= 5) && (rev <= 10)) 2117 filename = "b0g0bsinitvals5"; 2118 else if (rev >= 11) 2119 filename = NULL; 2120 else 2121 goto err_no_initvals; 2122 break; 2123 case B43_PHYTYPE_N: 2124 if ((rev >= 11) && (rev <= 12)) 2125 filename = "n0bsinitvals11"; 2126 else 2127 goto err_no_initvals; 2128 break; 2129 default: 2130 goto err_no_initvals; 2131 } 2132 err = do_request_fw(dev, filename, &fw->initvals_band, 0); 2133 if (err) 2134 goto err_load; 2135 2136 return 0; 2137 2138err_load: 2139 b43_print_fw_helptext(dev->wl, 1); 2140 goto error; 2141 2142err_no_ucode: 2143 err = -ENODEV; 2144 b43err(dev->wl, "No microcode available for core rev %u\n", rev); 2145 goto error; 2146 2147err_no_pcm: 2148 err = -ENODEV; 2149 b43err(dev->wl, "No PCM available for core rev %u\n", rev); 2150 goto error; 2151 2152err_no_initvals: 2153 err = -ENODEV; 2154 b43err(dev->wl, "No Initial Values firmware file for PHY %u, " 2155 "core rev %u\n", dev->phy.type, rev); 2156 goto error; 2157 2158error: 2159 b43_release_firmware(dev); 2160 return err; 2161} 2162 2163static int b43_upload_microcode(struct b43_wldev *dev) 2164{ 2165 const size_t hdr_len = sizeof(struct b43_fw_header); 2166 const __be32 *data; 2167 unsigned int i, len; 2168 u16 fwrev, fwpatch, fwdate, fwtime; 2169 u32 tmp, macctl; 2170 int err = 0; 2171 2172 /* Jump the microcode PSM to offset 0 */ 2173 macctl = b43_read32(dev, B43_MMIO_MACCTL); 2174 B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN); 2175 macctl |= B43_MACCTL_PSM_JMP0; 2176 b43_write32(dev, B43_MMIO_MACCTL, macctl); 2177 /* Zero out all microcode PSM registers and shared memory. */ 2178 for (i = 0; i < 64; i++) 2179 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0); 2180 for (i = 0; i < 4096; i += 2) 2181 b43_shm_write16(dev, B43_SHM_SHARED, i, 0); 2182 2183 /* Upload Microcode. */ 2184 data = (__be32 *) (dev->fw.ucode.data->data + hdr_len); 2185 len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32); 2186 b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000); 2187 for (i = 0; i < len; i++) { 2188 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); 2189 udelay(10); 2190 } 2191 2192 if (dev->fw.pcm.data) { 2193 /* Upload PCM data. */ 2194 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len); 2195 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32); 2196 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA); 2197 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000); 2198 /* No need for autoinc bit in SHM_HW */ 2199 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB); 2200 for (i = 0; i < len; i++) { 2201 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); 2202 udelay(10); 2203 } 2204 } 2205 2206 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); 2207 2208 /* Start the microcode PSM */ 2209 macctl = b43_read32(dev, B43_MMIO_MACCTL); 2210 macctl &= ~B43_MACCTL_PSM_JMP0; 2211 macctl |= B43_MACCTL_PSM_RUN; 2212 b43_write32(dev, B43_MMIO_MACCTL, macctl); 2213 2214 /* Wait for the microcode to load and respond */ 2215 i = 0; 2216 while (1) { 2217 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); 2218 if (tmp == B43_IRQ_MAC_SUSPENDED) 2219 break; 2220 i++; 2221 if (i >= 20) { 2222 b43err(dev->wl, "Microcode not responding\n"); 2223 b43_print_fw_helptext(dev->wl, 1); 2224 err = -ENODEV; 2225 goto error; 2226 } 2227 msleep_interruptible(50); 2228 if (signal_pending(current)) { 2229 err = -EINTR; 2230 goto error; 2231 } 2232 } 2233 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */ 2234 2235 /* Get and check the revisions. */ 2236 fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV); 2237 fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH); 2238 fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE); 2239 fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME); 2240 2241 if (fwrev <= 0x128) { 2242 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from " 2243 "binary drivers older than version 4.x is unsupported. " 2244 "You must upgrade your firmware files.\n"); 2245 b43_print_fw_helptext(dev->wl, 1); 2246 err = -EOPNOTSUPP; 2247 goto error; 2248 } 2249 dev->fw.rev = fwrev; 2250 dev->fw.patch = fwpatch; 2251 dev->fw.opensource = (fwdate == 0xFFFF); 2252 2253 if (dev->fw.opensource) { 2254 /* Patchlevel info is encoded in the "time" field. */ 2255 dev->fw.patch = fwtime; 2256 b43info(dev->wl, "Loading OpenSource firmware version %u.%u%s\n", 2257 dev->fw.rev, dev->fw.patch, 2258 dev->fw.pcm_request_failed ? " (Hardware crypto not supported)" : ""); 2259 } else { 2260 b43info(dev->wl, "Loading firmware version %u.%u " 2261 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", 2262 fwrev, fwpatch, 2263 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF, 2264 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F); 2265 if (dev->fw.pcm_request_failed) { 2266 b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. " 2267 "Hardware accelerated cryptography is disabled.\n"); 2268 b43_print_fw_helptext(dev->wl, 0); 2269 } 2270 } 2271 2272 if (b43_is_old_txhdr_format(dev)) { 2273 b43warn(dev->wl, "You are using an old firmware image. " 2274 "Support for old firmware will be removed in July 2008.\n"); 2275 b43_print_fw_helptext(dev->wl, 0); 2276 } 2277 2278 return 0; 2279 2280error: 2281 macctl = b43_read32(dev, B43_MMIO_MACCTL); 2282 macctl &= ~B43_MACCTL_PSM_RUN; 2283 macctl |= B43_MACCTL_PSM_JMP0; 2284 b43_write32(dev, B43_MMIO_MACCTL, macctl); 2285 2286 return err; 2287} 2288 2289static int b43_write_initvals(struct b43_wldev *dev, 2290 const struct b43_iv *ivals, 2291 size_t count, 2292 size_t array_size) 2293{ 2294 const struct b43_iv *iv; 2295 u16 offset; 2296 size_t i; 2297 bool bit32; 2298 2299 BUILD_BUG_ON(sizeof(struct b43_iv) != 6); 2300 iv = ivals; 2301 for (i = 0; i < count; i++) { 2302 if (array_size < sizeof(iv->offset_size)) 2303 goto err_format; 2304 array_size -= sizeof(iv->offset_size); 2305 offset = be16_to_cpu(iv->offset_size); 2306 bit32 = !!(offset & B43_IV_32BIT); 2307 offset &= B43_IV_OFFSET_MASK; 2308 if (offset >= 0x1000) 2309 goto err_format; 2310 if (bit32) { 2311 u32 value; 2312 2313 if (array_size < sizeof(iv->data.d32)) 2314 goto err_format; 2315 array_size -= sizeof(iv->data.d32); 2316 2317 value = get_unaligned_be32(&iv->data.d32); 2318 b43_write32(dev, offset, value); 2319 2320 iv = (const struct b43_iv *)((const uint8_t *)iv + 2321 sizeof(__be16) + 2322 sizeof(__be32)); 2323 } else { 2324 u16 value; 2325 2326 if (array_size < sizeof(iv->data.d16)) 2327 goto err_format; 2328 array_size -= sizeof(iv->data.d16); 2329 2330 value = be16_to_cpu(iv->data.d16); 2331 b43_write16(dev, offset, value); 2332 2333 iv = (const struct b43_iv *)((const uint8_t *)iv + 2334 sizeof(__be16) + 2335 sizeof(__be16)); 2336 } 2337 } 2338 if (array_size) 2339 goto err_format; 2340 2341 return 0; 2342 2343err_format: 2344 b43err(dev->wl, "Initial Values Firmware file-format error.\n"); 2345 b43_print_fw_helptext(dev->wl, 1); 2346 2347 return -EPROTO; 2348} 2349 2350static int b43_upload_initvals(struct b43_wldev *dev) 2351{ 2352 const size_t hdr_len = sizeof(struct b43_fw_header); 2353 const struct b43_fw_header *hdr; 2354 struct b43_firmware *fw = &dev->fw; 2355 const struct b43_iv *ivals; 2356 size_t count; 2357 int err; 2358 2359 hdr = (const struct b43_fw_header *)(fw->initvals.data->data); 2360 ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len); 2361 count = be32_to_cpu(hdr->size); 2362 err = b43_write_initvals(dev, ivals, count, 2363 fw->initvals.data->size - hdr_len); 2364 if (err) 2365 goto out; 2366 if (fw->initvals_band.data) { 2367 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data); 2368 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len); 2369 count = be32_to_cpu(hdr->size); 2370 err = b43_write_initvals(dev, ivals, count, 2371 fw->initvals_band.data->size - hdr_len); 2372 if (err) 2373 goto out; 2374 } 2375out: 2376 2377 return err; 2378} 2379 2380/* Initialize the GPIOs 2381 * http://bcm-specs.sipsolutions.net/GPIO 2382 */ 2383static int b43_gpio_init(struct b43_wldev *dev) 2384{ 2385 struct ssb_bus *bus = dev->dev->bus; 2386 struct ssb_device *gpiodev, *pcidev = NULL; 2387 u32 mask, set; 2388 2389 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) 2390 & ~B43_MACCTL_GPOUTSMSK); 2391 2392 b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK) 2393 | 0x000F); 2394 2395 mask = 0x0000001F; 2396 set = 0x0000000F; 2397 if (dev->dev->bus->chip_id == 0x4301) { 2398 mask |= 0x0060; 2399 set |= 0x0060; 2400 } 2401 if (0 /* FIXME: conditional unknown */ ) { 2402 b43_write16(dev, B43_MMIO_GPIO_MASK, 2403 b43_read16(dev, B43_MMIO_GPIO_MASK) 2404 | 0x0100); 2405 mask |= 0x0180; 2406 set |= 0x0180; 2407 } 2408 if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) { 2409 b43_write16(dev, B43_MMIO_GPIO_MASK, 2410 b43_read16(dev, B43_MMIO_GPIO_MASK) 2411 | 0x0200); 2412 mask |= 0x0200; 2413 set |= 0x0200; 2414 } 2415 if (dev->dev->id.revision >= 2) 2416 mask |= 0x0010; /* FIXME: This is redundant. */ 2417 2418#ifdef CONFIG_SSB_DRIVER_PCICORE 2419 pcidev = bus->pcicore.dev; 2420#endif 2421 gpiodev = bus->chipco.dev ? : pcidev; 2422 if (!gpiodev) 2423 return 0; 2424 ssb_write32(gpiodev, B43_GPIO_CONTROL, 2425 (ssb_read32(gpiodev, B43_GPIO_CONTROL) 2426 & mask) | set); 2427 2428 return 0; 2429} 2430 2431/* Turn off all GPIO stuff. Call this on module unload, for example. */ 2432static void b43_gpio_cleanup(struct b43_wldev *dev) 2433{ 2434 struct ssb_bus *bus = dev->dev->bus; 2435 struct ssb_device *gpiodev, *pcidev = NULL; 2436 2437#ifdef CONFIG_SSB_DRIVER_PCICORE 2438 pcidev = bus->pcicore.dev; 2439#endif 2440 gpiodev = bus->chipco.dev ? : pcidev; 2441 if (!gpiodev) 2442 return; 2443 ssb_write32(gpiodev, B43_GPIO_CONTROL, 0); 2444} 2445 2446/* http://bcm-specs.sipsolutions.net/EnableMac */ 2447void b43_mac_enable(struct b43_wldev *dev) 2448{ 2449 if (b43_debug(dev, B43_DBG_FIRMWARE)) { 2450 u16 fwstate; 2451 2452 fwstate = b43_shm_read16(dev, B43_SHM_SHARED, 2453 B43_SHM_SH_UCODESTAT); 2454 if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) && 2455 (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) { 2456 b43err(dev->wl, "b43_mac_enable(): The firmware " 2457 "should be suspended, but current state is %u\n", 2458 fwstate); 2459 } 2460 } 2461 2462 dev->mac_suspended--; 2463 B43_WARN_ON(dev->mac_suspended < 0); 2464 if (dev->mac_suspended == 0) { 2465 b43_write32(dev, B43_MMIO_MACCTL, 2466 b43_read32(dev, B43_MMIO_MACCTL) 2467 | B43_MACCTL_ENABLED); 2468 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 2469 B43_IRQ_MAC_SUSPENDED); 2470 /* Commit writes */ 2471 b43_read32(dev, B43_MMIO_MACCTL); 2472 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); 2473 b43_power_saving_ctl_bits(dev, 0); 2474 } 2475} 2476 2477/* http://bcm-specs.sipsolutions.net/SuspendMAC */ 2478void b43_mac_suspend(struct b43_wldev *dev) 2479{ 2480 int i; 2481 u32 tmp; 2482 2483 might_sleep(); 2484 B43_WARN_ON(dev->mac_suspended < 0); 2485 2486 if (dev->mac_suspended == 0) { 2487 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); 2488 b43_write32(dev, B43_MMIO_MACCTL, 2489 b43_read32(dev, B43_MMIO_MACCTL) 2490 & ~B43_MACCTL_ENABLED); 2491 /* force pci to flush the write */ 2492 b43_read32(dev, B43_MMIO_MACCTL); 2493 for (i = 35; i; i--) { 2494 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); 2495 if (tmp & B43_IRQ_MAC_SUSPENDED) 2496 goto out; 2497 udelay(10); 2498 } 2499 /* Hm, it seems this will take some time. Use msleep(). */ 2500 for (i = 40; i; i--) { 2501 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); 2502 if (tmp & B43_IRQ_MAC_SUSPENDED) 2503 goto out; 2504 msleep(1); 2505 } 2506 b43err(dev->wl, "MAC suspend failed\n"); 2507 } 2508out: 2509 dev->mac_suspended++; 2510} 2511 2512static void b43_adjust_opmode(struct b43_wldev *dev) 2513{ 2514 struct b43_wl *wl = dev->wl; 2515 u32 ctl; 2516 u16 cfp_pretbtt; 2517 2518 ctl = b43_read32(dev, B43_MMIO_MACCTL); 2519 /* Reset status to STA infrastructure mode. */ 2520 ctl &= ~B43_MACCTL_AP; 2521 ctl &= ~B43_MACCTL_KEEP_CTL; 2522 ctl &= ~B43_MACCTL_KEEP_BADPLCP; 2523 ctl &= ~B43_MACCTL_KEEP_BAD; 2524 ctl &= ~B43_MACCTL_PROMISC; 2525 ctl &= ~B43_MACCTL_BEACPROMISC; 2526 ctl |= B43_MACCTL_INFRA; 2527 2528 if (b43_is_mode(wl, NL80211_IFTYPE_AP) || 2529 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) 2530 ctl |= B43_MACCTL_AP; 2531 else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) 2532 ctl &= ~B43_MACCTL_INFRA; 2533 2534 if (wl->filter_flags & FIF_CONTROL) 2535 ctl |= B43_MACCTL_KEEP_CTL; 2536 if (wl->filter_flags & FIF_FCSFAIL) 2537 ctl |= B43_MACCTL_KEEP_BAD; 2538 if (wl->filter_flags & FIF_PLCPFAIL) 2539 ctl |= B43_MACCTL_KEEP_BADPLCP; 2540 if (wl->filter_flags & FIF_PROMISC_IN_BSS) 2541 ctl |= B43_MACCTL_PROMISC; 2542 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC) 2543 ctl |= B43_MACCTL_BEACPROMISC; 2544 2545 /* Workaround: On old hardware the HW-MAC-address-filter 2546 * doesn't work properly, so always run promisc in filter 2547 * it in software. */ 2548 if (dev->dev->id.revision <= 4) 2549 ctl |= B43_MACCTL_PROMISC; 2550 2551 b43_write32(dev, B43_MMIO_MACCTL, ctl); 2552 2553 cfp_pretbtt = 2; 2554 if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) { 2555 if (dev->dev->bus->chip_id == 0x4306 && 2556 dev->dev->bus->chip_rev == 3) 2557 cfp_pretbtt = 100; 2558 else 2559 cfp_pretbtt = 50; 2560 } 2561 b43_write16(dev, 0x612, cfp_pretbtt); 2562} 2563 2564static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm) 2565{ 2566 u16 offset; 2567 2568 if (is_ofdm) { 2569 offset = 0x480; 2570 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; 2571 } else { 2572 offset = 0x4C0; 2573 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2; 2574 } 2575 b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20, 2576 b43_shm_read16(dev, B43_SHM_SHARED, offset)); 2577} 2578 2579static void b43_rate_memory_init(struct b43_wldev *dev) 2580{ 2581 switch (dev->phy.type) { 2582 case B43_PHYTYPE_A: 2583 case B43_PHYTYPE_G: 2584 case B43_PHYTYPE_N: 2585 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1); 2586 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1); 2587 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1); 2588 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1); 2589 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1); 2590 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1); 2591 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1); 2592 if (dev->phy.type == B43_PHYTYPE_A) 2593 break; 2594 /* fallthrough */ 2595 case B43_PHYTYPE_B: 2596 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0); 2597 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0); 2598 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0); 2599 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0); 2600 break; 2601 default: 2602 B43_WARN_ON(1); 2603 } 2604} 2605 2606/* Set the default values for the PHY TX Control Words. */ 2607static void b43_set_phytxctl_defaults(struct b43_wldev *dev) 2608{ 2609 u16 ctl = 0; 2610 2611 ctl |= B43_TXH_PHY_ENC_CCK; 2612 ctl |= B43_TXH_PHY_ANT01AUTO; 2613 ctl |= B43_TXH_PHY_TXPWR; 2614 2615 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); 2616 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl); 2617 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl); 2618} 2619 2620/* Set the TX-Antenna for management frames sent by firmware. */ 2621static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna) 2622{ 2623 u16 ant; 2624 u16 tmp; 2625 2626 ant = b43_antenna_to_phyctl(antenna); 2627 2628 /* For ACK/CTS */ 2629 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL); 2630 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; 2631 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp); 2632 /* For Probe Resposes */ 2633 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL); 2634 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; 2635 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp); 2636} 2637 2638/* This is the opposite of b43_chip_init() */ 2639static void b43_chip_exit(struct b43_wldev *dev) 2640{ 2641 b43_phy_exit(dev); 2642 b43_gpio_cleanup(dev); 2643 /* firmware is released later */ 2644} 2645 2646/* Initialize the chip 2647 * http://bcm-specs.sipsolutions.net/ChipInit 2648 */ 2649static int b43_chip_init(struct b43_wldev *dev) 2650{ 2651 struct b43_phy *phy = &dev->phy; 2652 int err; 2653 u32 value32, macctl; 2654 u16 value16; 2655 2656 /* Initialize the MAC control */ 2657 macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED; 2658 if (dev->phy.gmode) 2659 macctl |= B43_MACCTL_GMODE; 2660 macctl |= B43_MACCTL_INFRA; 2661 b43_write32(dev, B43_MMIO_MACCTL, macctl); 2662 2663 err = b43_request_firmware(dev); 2664 if (err) 2665 goto out; 2666 err = b43_upload_microcode(dev); 2667 if (err) 2668 goto out; /* firmware is released later */ 2669 2670 err = b43_gpio_init(dev); 2671 if (err) 2672 goto out; /* firmware is released later */ 2673 2674 err = b43_upload_initvals(dev); 2675 if (err) 2676 goto err_gpio_clean; 2677 2678 /* Turn the Analog on and initialize the PHY. */ 2679 phy->ops->switch_analog(dev, 1); 2680 err = b43_phy_init(dev); 2681 if (err) 2682 goto err_gpio_clean; 2683 2684 /* Disable Interference Mitigation. */ 2685 if (phy->ops->interf_mitigation) 2686 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE); 2687 2688 /* Select the antennae */ 2689 if (phy->ops->set_rx_antenna) 2690 phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT); 2691 b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT); 2692 2693 if (phy->type == B43_PHYTYPE_B) { 2694 value16 = b43_read16(dev, 0x005E); 2695 value16 |= 0x0004; 2696 b43_write16(dev, 0x005E, value16); 2697 } 2698 b43_write32(dev, 0x0100, 0x01000000); 2699 if (dev->dev->id.revision < 5) 2700 b43_write32(dev, 0x010C, 0x01000000); 2701 2702 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) 2703 & ~B43_MACCTL_INFRA); 2704 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) 2705 | B43_MACCTL_INFRA); 2706 2707 /* Probe Response Timeout value */ 2708 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ 2709 b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000); 2710 2711 /* Initially set the wireless operation mode. */ 2712 b43_adjust_opmode(dev); 2713 2714 if (dev->dev->id.revision < 3) { 2715 b43_write16(dev, 0x060E, 0x0000); 2716 b43_write16(dev, 0x0610, 0x8000); 2717 b43_write16(dev, 0x0604, 0x0000); 2718 b43_write16(dev, 0x0606, 0x0200); 2719 } else { 2720 b43_write32(dev, 0x0188, 0x80000000); 2721 b43_write32(dev, 0x018C, 0x02000000); 2722 } 2723 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000); 2724 b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00); 2725 b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00); 2726 b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00); 2727 b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00); 2728 b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00); 2729 b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00); 2730 2731 value32 = ssb_read32(dev->dev, SSB_TMSLOW); 2732 value32 |= 0x00100000; 2733 ssb_write32(dev->dev, SSB_TMSLOW, value32); 2734 2735 b43_write16(dev, B43_MMIO_POWERUP_DELAY, 2736 dev->dev->bus->chipco.fast_pwrup_delay); 2737 2738 err = 0; 2739 b43dbg(dev->wl, "Chip initialized\n"); 2740out: 2741 return err; 2742 2743err_gpio_clean: 2744 b43_gpio_cleanup(dev); 2745 return err; 2746} 2747 2748static void b43_periodic_every60sec(struct b43_wldev *dev) 2749{ 2750 const struct b43_phy_operations *ops = dev->phy.ops; 2751 2752 if (ops->pwork_60sec) 2753 ops->pwork_60sec(dev); 2754 2755 /* Force check the TX power emission now. */ 2756 b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME); 2757} 2758 2759static void b43_periodic_every30sec(struct b43_wldev *dev) 2760{ 2761 /* Update device statistics. */ 2762 b43_calculate_link_quality(dev); 2763} 2764 2765static void b43_periodic_every15sec(struct b43_wldev *dev) 2766{ 2767 struct b43_phy *phy = &dev->phy; 2768 u16 wdr; 2769 2770 if (dev->fw.opensource) { 2771 /* Check if the firmware is still alive. 2772 * It will reset the watchdog counter to 0 in its idle loop. */ 2773 wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG); 2774 if (unlikely(wdr)) { 2775 b43err(dev->wl, "Firmware watchdog: The firmware died!\n"); 2776 b43_controller_restart(dev, "Firmware watchdog"); 2777 return; 2778 } else { 2779 b43_shm_write16(dev, B43_SHM_SCRATCH, 2780 B43_WATCHDOG_REG, 1); 2781 } 2782 } 2783 2784 if (phy->ops->pwork_15sec) 2785 phy->ops->pwork_15sec(dev); 2786 2787 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); 2788 wmb(); 2789} 2790 2791static void do_periodic_work(struct b43_wldev *dev) 2792{ 2793 unsigned int state; 2794 2795 state = dev->periodic_state; 2796 if (state % 4 == 0) 2797 b43_periodic_every60sec(dev); 2798 if (state % 2 == 0) 2799 b43_periodic_every30sec(dev); 2800 b43_periodic_every15sec(dev); 2801} 2802 2803/* Periodic work locking policy: 2804 * The whole periodic work handler is protected by 2805 * wl->mutex. If another lock is needed somewhere in the 2806 * pwork callchain, it's aquired in-place, where it's needed. 2807 */ 2808static void b43_periodic_work_handler(struct work_struct *work) 2809{ 2810 struct b43_wldev *dev = container_of(work, struct b43_wldev, 2811 periodic_work.work); 2812 struct b43_wl *wl = dev->wl; 2813 unsigned long delay; 2814 2815 mutex_lock(&wl->mutex); 2816 2817 if (unlikely(b43_status(dev) != B43_STAT_STARTED)) 2818 goto out; 2819 if (b43_debug(dev, B43_DBG_PWORK_STOP)) 2820 goto out_requeue; 2821 2822 do_periodic_work(dev); 2823 2824 dev->periodic_state++; 2825out_requeue: 2826 if (b43_debug(dev, B43_DBG_PWORK_FAST)) 2827 delay = msecs_to_jiffies(50); 2828 else 2829 delay = round_jiffies_relative(HZ * 15); 2830 queue_delayed_work(wl->hw->workqueue, &dev->periodic_work, delay); 2831out: 2832 mutex_unlock(&wl->mutex); 2833} 2834 2835static void b43_periodic_tasks_setup(struct b43_wldev *dev) 2836{ 2837 struct delayed_work *work = &dev->periodic_work; 2838 2839 dev->periodic_state = 0; 2840 INIT_DELAYED_WORK(work, b43_periodic_work_handler); 2841 queue_delayed_work(dev->wl->hw->workqueue, work, 0); 2842} 2843 2844/* Check if communication with the device works correctly. */ 2845static int b43_validate_chipaccess(struct b43_wldev *dev) 2846{ 2847 u32 v, backup; 2848 2849 backup = b43_shm_read32(dev, B43_SHM_SHARED, 0); 2850 2851 /* Check for read/write and endianness problems. */ 2852 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55); 2853 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55) 2854 goto error; 2855 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA); 2856 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA) 2857 goto error; 2858 2859 b43_shm_write32(dev, B43_SHM_SHARED, 0, backup); 2860 2861 if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) { 2862 /* The 32bit register shadows the two 16bit registers 2863 * with update sideeffects. Validate this. */ 2864 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA); 2865 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB); 2866 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB) 2867 goto error; 2868 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC) 2869 goto error; 2870 } 2871 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0); 2872 2873 v = b43_read32(dev, B43_MMIO_MACCTL); 2874 v |= B43_MACCTL_GMODE; 2875 if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED)) 2876 goto error; 2877 2878 return 0; 2879error: 2880 b43err(dev->wl, "Failed to validate the chipaccess\n"); 2881 return -ENODEV; 2882} 2883 2884static void b43_security_init(struct b43_wldev *dev) 2885{ 2886 dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20; 2887 B43_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key)); 2888 dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP); 2889 /* KTP is a word address, but we address SHM bytewise. 2890 * So multiply by two. 2891 */ 2892 dev->ktp *= 2; 2893 if (dev->dev->id.revision >= 5) { 2894 /* Number of RCMTA address slots */ 2895 b43_write16(dev, B43_MMIO_RCMTA_COUNT, dev->max_nr_keys - 8); 2896 } 2897 b43_clear_keys(dev); 2898} 2899 2900static int b43_rng_read(struct hwrng *rng, u32 * data) 2901{ 2902 struct b43_wl *wl = (struct b43_wl *)rng->priv; 2903 unsigned long flags; 2904 2905 /* Don't take wl->mutex here, as it could deadlock with 2906 * hwrng internal locking. It's not needed to take 2907 * wl->mutex here, anyway. */ 2908 2909 spin_lock_irqsave(&wl->irq_lock, flags); 2910 *data = b43_read16(wl->current_dev, B43_MMIO_RNG); 2911 spin_unlock_irqrestore(&wl->irq_lock, flags); 2912 2913 return (sizeof(u16)); 2914} 2915 2916static void b43_rng_exit(struct b43_wl *wl) 2917{ 2918 if (wl->rng_initialized) 2919 hwrng_unregister(&wl->rng); 2920} 2921 2922static int b43_rng_init(struct b43_wl *wl) 2923{ 2924 int err; 2925 2926 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), 2927 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); 2928 wl->rng.name = wl->rng_name; 2929 wl->rng.data_read = b43_rng_read; 2930 wl->rng.priv = (unsigned long)wl; 2931 wl->rng_initialized = 1; 2932 err = hwrng_register(&wl->rng); 2933 if (err) { 2934 wl->rng_initialized = 0; 2935 b43err(wl, "Failed to register the random " 2936 "number generator (%d)\n", err); 2937 } 2938 2939 return err; 2940} 2941 2942static int b43_op_tx(struct ieee80211_hw *hw, 2943 struct sk_buff *skb) 2944{ 2945 struct b43_wl *wl = hw_to_b43_wl(hw); 2946 struct b43_wldev *dev = wl->current_dev; 2947 unsigned long flags; 2948 int err; 2949 2950 if (unlikely(skb->len < 2 + 2 + 6)) { 2951 /* Too short, this can't be a valid frame. */ 2952 goto drop_packet; 2953 } 2954 B43_WARN_ON(skb_shinfo(skb)->nr_frags); 2955 if (unlikely(!dev)) 2956 goto drop_packet; 2957 2958 /* Transmissions on seperate queues can run concurrently. */ 2959 read_lock_irqsave(&wl->tx_lock, flags); 2960 2961 err = -ENODEV; 2962 if (likely(b43_status(dev) >= B43_STAT_STARTED)) { 2963 if (b43_using_pio_transfers(dev)) 2964 err = b43_pio_tx(dev, skb); 2965 else 2966 err = b43_dma_tx(dev, skb); 2967 } 2968 2969 read_unlock_irqrestore(&wl->tx_lock, flags); 2970 2971 if (unlikely(err)) 2972 goto drop_packet; 2973 return NETDEV_TX_OK; 2974 2975drop_packet: 2976 /* We can not transmit this packet. Drop it. */ 2977 dev_kfree_skb_any(skb); 2978 return NETDEV_TX_OK; 2979} 2980 2981/* Locking: wl->irq_lock */ 2982static void b43_qos_params_upload(struct b43_wldev *dev, 2983 const struct ieee80211_tx_queue_params *p, 2984 u16 shm_offset) 2985{ 2986 u16 params[B43_NR_QOSPARAMS]; 2987 int bslots, tmp; 2988 unsigned int i; 2989 2990 bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min; 2991 2992 memset(¶ms, 0, sizeof(params)); 2993 2994 params[B43_QOSPARAM_TXOP] = p->txop * 32; 2995 params[B43_QOSPARAM_CWMIN] = p->cw_min; 2996 params[B43_QOSPARAM_CWMAX] = p->cw_max; 2997 params[B43_QOSPARAM_CWCUR] = p->cw_min; 2998 params[B43_QOSPARAM_AIFS] = p->aifs; 2999 params[B43_QOSPARAM_BSLOTS] = bslots; 3000 params[B43_QOSPARAM_REGGAP] = bslots + p->aifs; 3001 3002 for (i = 0; i < ARRAY_SIZE(params); i++) { 3003 if (i == B43_QOSPARAM_STATUS) { 3004 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 3005 shm_offset + (i * 2)); 3006 /* Mark the parameters as updated. */ 3007 tmp |= 0x100; 3008 b43_shm_write16(dev, B43_SHM_SHARED, 3009 shm_offset + (i * 2), 3010 tmp); 3011 } else { 3012 b43_shm_write16(dev, B43_SHM_SHARED, 3013 shm_offset + (i * 2), 3014 params[i]); 3015 } 3016 } 3017} 3018 3019/* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */ 3020static const u16 b43_qos_shm_offsets[] = { 3021 /* [mac80211-queue-nr] = SHM_OFFSET, */ 3022 [0] = B43_QOS_VOICE, 3023 [1] = B43_QOS_VIDEO, 3024 [2] = B43_QOS_BESTEFFORT, 3025 [3] = B43_QOS_BACKGROUND, 3026}; 3027 3028/* Update all QOS parameters in hardware. */ 3029static void b43_qos_upload_all(struct b43_wldev *dev) 3030{ 3031 struct b43_wl *wl = dev->wl; 3032 struct b43_qos_params *params; 3033 unsigned int i; 3034 3035 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != 3036 ARRAY_SIZE(wl->qos_params)); 3037 3038 b43_mac_suspend(dev); 3039 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { 3040 params = &(wl->qos_params[i]); 3041 b43_qos_params_upload(dev, &(params->p), 3042 b43_qos_shm_offsets[i]); 3043 } 3044 b43_mac_enable(dev); 3045} 3046 3047static void b43_qos_clear(struct b43_wl *wl) 3048{ 3049 struct b43_qos_params *params; 3050 unsigned int i; 3051 3052 /* Initialize QoS parameters to sane defaults. */ 3053 3054 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != 3055 ARRAY_SIZE(wl->qos_params)); 3056 3057 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { 3058 params = &(wl->qos_params[i]); 3059 3060 switch (b43_qos_shm_offsets[i]) { 3061 case B43_QOS_VOICE: 3062 params->p.txop = 0; 3063 params->p.aifs = 2; 3064 params->p.cw_min = 0x0001; 3065 params->p.cw_max = 0x0001; 3066 break; 3067 case B43_QOS_VIDEO: 3068 params->p.txop = 0; 3069 params->p.aifs = 2; 3070 params->p.cw_min = 0x0001; 3071 params->p.cw_max = 0x0001; 3072 break; 3073 case B43_QOS_BESTEFFORT: 3074 params->p.txop = 0; 3075 params->p.aifs = 3; 3076 params->p.cw_min = 0x0001; 3077 params->p.cw_max = 0x03FF; 3078 break; 3079 case B43_QOS_BACKGROUND: 3080 params->p.txop = 0; 3081 params->p.aifs = 7; 3082 params->p.cw_min = 0x0001; 3083 params->p.cw_max = 0x03FF; 3084 break; 3085 default: 3086 B43_WARN_ON(1); 3087 } 3088 } 3089} 3090 3091/* Initialize the core's QOS capabilities */ 3092static void b43_qos_init(struct b43_wldev *dev) 3093{ 3094 /* Upload the current QOS parameters. */ 3095 b43_qos_upload_all(dev); 3096 3097 /* Enable QOS support. */ 3098 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF); 3099 b43_write16(dev, B43_MMIO_IFSCTL, 3100 b43_read16(dev, B43_MMIO_IFSCTL) 3101 | B43_MMIO_IFSCTL_USE_EDCF); 3102} 3103 3104static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue, 3105 const struct ieee80211_tx_queue_params *params) 3106{ 3107 struct b43_wl *wl = hw_to_b43_wl(hw); 3108 struct b43_wldev *dev; 3109 unsigned int queue = (unsigned int)_queue; 3110 int err = -ENODEV; 3111 3112 if (queue >= ARRAY_SIZE(wl->qos_params)) { 3113 /* Queue not available or don't support setting 3114 * params on this queue. Return success to not 3115 * confuse mac80211. */ 3116 return 0; 3117 } 3118 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != 3119 ARRAY_SIZE(wl->qos_params)); 3120 3121 mutex_lock(&wl->mutex); 3122 dev = wl->current_dev; 3123 if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) 3124 goto out_unlock; 3125 3126 memcpy(&(wl->qos_params[queue].p), params, sizeof(*params)); 3127 b43_mac_suspend(dev); 3128 b43_qos_params_upload(dev, &(wl->qos_params[queue].p), 3129 b43_qos_shm_offsets[queue]); 3130 b43_mac_enable(dev); 3131 err = 0; 3132 3133out_unlock: 3134 mutex_unlock(&wl->mutex); 3135 3136 return err; 3137} 3138 3139static int b43_op_get_tx_stats(struct ieee80211_hw *hw, 3140 struct ieee80211_tx_queue_stats *stats) 3141{ 3142 struct b43_wl *wl = hw_to_b43_wl(hw); 3143 struct b43_wldev *dev = wl->current_dev; 3144 unsigned long flags; 3145 int err = -ENODEV; 3146 3147 if (!dev) 3148 goto out; 3149 spin_lock_irqsave(&wl->irq_lock, flags); 3150 if (likely(b43_status(dev) >= B43_STAT_STARTED)) { 3151 if (b43_using_pio_transfers(dev)) 3152 b43_pio_get_tx_stats(dev, stats); 3153 else 3154 b43_dma_get_tx_stats(dev, stats); 3155 err = 0; 3156 } 3157 spin_unlock_irqrestore(&wl->irq_lock, flags); 3158out: 3159 return err; 3160} 3161 3162static int b43_op_get_stats(struct ieee80211_hw *hw, 3163 struct ieee80211_low_level_stats *stats) 3164{ 3165 struct b43_wl *wl = hw_to_b43_wl(hw); 3166 unsigned long flags; 3167 3168 spin_lock_irqsave(&wl->irq_lock, flags); 3169 memcpy(stats, &wl->ieee_stats, sizeof(*stats)); 3170 spin_unlock_irqrestore(&wl->irq_lock, flags); 3171 3172 return 0; 3173} 3174 3175static void b43_put_phy_into_reset(struct b43_wldev *dev) 3176{ 3177 struct ssb_device *sdev = dev->dev; 3178 u32 tmslow; 3179 3180 tmslow = ssb_read32(sdev, SSB_TMSLOW); 3181 tmslow &= ~B43_TMSLOW_GMODE; 3182 tmslow |= B43_TMSLOW_PHYRESET; 3183 tmslow |= SSB_TMSLOW_FGC; 3184 ssb_write32(sdev, SSB_TMSLOW, tmslow); 3185 msleep(1); 3186 3187 tmslow = ssb_read32(sdev, SSB_TMSLOW); 3188 tmslow &= ~SSB_TMSLOW_FGC; 3189 tmslow |= B43_TMSLOW_PHYRESET; 3190 ssb_write32(sdev, SSB_TMSLOW, tmslow); 3191 msleep(1); 3192} 3193 3194static const char * band_to_string(enum ieee80211_band band) 3195{ 3196 switch (band) { 3197 case IEEE80211_BAND_5GHZ: 3198 return "5"; 3199 case IEEE80211_BAND_2GHZ: 3200 return "2.4"; 3201 default: 3202 break; 3203 } 3204 B43_WARN_ON(1); 3205 return ""; 3206} 3207 3208/* Expects wl->mutex locked */ 3209static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan) 3210{ 3211 struct b43_wldev *up_dev = NULL; 3212 struct b43_wldev *down_dev; 3213 struct b43_wldev *d; 3214 int err; 3215 bool uninitialized_var(gmode); 3216 int prev_status; 3217 3218 /* Find a device and PHY which supports the band. */ 3219 list_for_each_entry(d, &wl->devlist, list) { 3220 switch (chan->band) { 3221 case IEEE80211_BAND_5GHZ: 3222 if (d->phy.supports_5ghz) { 3223 up_dev = d; 3224 gmode = 0; 3225 } 3226 break; 3227 case IEEE80211_BAND_2GHZ: 3228 if (d->phy.supports_2ghz) { 3229 up_dev = d; 3230 gmode = 1; 3231 } 3232 break; 3233 default: 3234 B43_WARN_ON(1); 3235 return -EINVAL; 3236 } 3237 if (up_dev) 3238 break; 3239 } 3240 if (!up_dev) { 3241 b43err(wl, "Could not find a device for %s-GHz band operation\n", 3242 band_to_string(chan->band)); 3243 return -ENODEV; 3244 } 3245 if ((up_dev == wl->current_dev) && 3246 (!!wl->current_dev->phy.gmode == !!gmode)) { 3247 /* This device is already running. */ 3248 return 0; 3249 } 3250 b43dbg(wl, "Switching to %s-GHz band\n", 3251 band_to_string(chan->band)); 3252 down_dev = wl->current_dev; 3253 3254 prev_status = b43_status(down_dev); 3255 /* Shutdown the currently running core. */ 3256 if (prev_status >= B43_STAT_STARTED) 3257 b43_wireless_core_stop(down_dev); 3258 if (prev_status >= B43_STAT_INITIALIZED) 3259 b43_wireless_core_exit(down_dev); 3260 3261 if (down_dev != up_dev) { 3262 /* We switch to a different core, so we put PHY into 3263 * RESET on the old core. */ 3264 b43_put_phy_into_reset(down_dev); 3265 } 3266 3267 /* Now start the new core. */ 3268 up_dev->phy.gmode = gmode; 3269 if (prev_status >= B43_STAT_INITIALIZED) { 3270 err = b43_wireless_core_init(up_dev); 3271 if (err) { 3272 b43err(wl, "Fatal: Could not initialize device for " 3273 "selected %s-GHz band\n", 3274 band_to_string(chan->band)); 3275 goto init_failure; 3276 } 3277 } 3278 if (prev_status >= B43_STAT_STARTED) { 3279 err = b43_wireless_core_start(up_dev); 3280 if (err) { 3281 b43err(wl, "Fatal: Coult not start device for " 3282 "selected %s-GHz band\n", 3283 band_to_string(chan->band)); 3284 b43_wireless_core_exit(up_dev); 3285 goto init_failure; 3286 } 3287 } 3288 B43_WARN_ON(b43_status(up_dev) != prev_status); 3289 3290 wl->current_dev = up_dev; 3291 3292 return 0; 3293init_failure: 3294 /* Whoops, failed to init the new core. No core is operating now. */ 3295 wl->current_dev = NULL; 3296 return err; 3297} 3298 3299/* Write the short and long frame retry limit values. */ 3300static void b43_set_retry_limits(struct b43_wldev *dev, 3301 unsigned int short_retry, 3302 unsigned int long_retry) 3303{ 3304 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing 3305 * the chip-internal counter. */ 3306 short_retry = min(short_retry, (unsigned int)0xF); 3307 long_retry = min(long_retry, (unsigned int)0xF); 3308 3309 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, 3310 short_retry); 3311 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, 3312 long_retry); 3313} 3314 3315static int b43_op_config(struct ieee80211_hw *hw, u32 changed) 3316{ 3317 struct b43_wl *wl = hw_to_b43_wl(hw); 3318 struct b43_wldev *dev; 3319 struct b43_phy *phy; 3320 struct ieee80211_conf *conf = &hw->conf; 3321 unsigned long flags; 3322 int antenna; 3323 int err = 0; 3324 3325 mutex_lock(&wl->mutex); 3326 3327 /* Switch the band (if necessary). This might change the active core. */ 3328 err = b43_switch_band(wl, conf->channel); 3329 if (err) 3330 goto out_unlock_mutex; 3331 dev = wl->current_dev; 3332 phy = &dev->phy; 3333 3334 b43_mac_suspend(dev); 3335 3336 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) 3337 b43_set_retry_limits(dev, conf->short_frame_max_tx_count, 3338 conf->long_frame_max_tx_count); 3339 changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; 3340 if (!changed) 3341 goto out_mac_enable; 3342 3343 /* Switch to the requested channel. 3344 * The firmware takes care of races with the TX handler. */ 3345 if (conf->channel->hw_value != phy->channel) 3346 b43_switch_channel(dev, conf->channel->hw_value); 3347 3348 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP); 3349 3350 /* Adjust the desired TX power level. */ 3351 if (conf->power_level != 0) { 3352 spin_lock_irqsave(&wl->irq_lock, flags); 3353 if (conf->power_level != phy->desired_txpower) { 3354 phy->desired_txpower = conf->power_level; 3355 b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME | 3356 B43_TXPWR_IGNORE_TSSI); 3357 } 3358 spin_unlock_irqrestore(&wl->irq_lock, flags); 3359 } 3360 3361 /* Antennas for RX and management frame TX. */ 3362 antenna = B43_ANTENNA_DEFAULT; 3363 b43_mgmtframe_txantenna(dev, antenna); 3364 antenna = B43_ANTENNA_DEFAULT; 3365 if (phy->ops->set_rx_antenna) 3366 phy->ops->set_rx_antenna(dev, antenna); 3367 3368 /* Update templates for AP/mesh mode. */ 3369 if (b43_is_mode(wl, NL80211_IFTYPE_AP) || 3370 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) 3371 b43_set_beacon_int(dev, conf->beacon_int); 3372 3373 if (!!conf->radio_enabled != phy->radio_on) { 3374 if (conf->radio_enabled) { 3375 b43_software_rfkill(dev, RFKILL_STATE_UNBLOCKED); 3376 b43info(dev->wl, "Radio turned on by software\n"); 3377 if (!dev->radio_hw_enable) { 3378 b43info(dev->wl, "The hardware RF-kill button " 3379 "still turns the radio physically off. " 3380 "Press the button to turn it on.\n"); 3381 } 3382 } else { 3383 b43_software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED); 3384 b43info(dev->wl, "Radio turned off by software\n"); 3385 } 3386 } 3387 3388out_mac_enable: 3389 b43_mac_enable(dev); 3390out_unlock_mutex: 3391 mutex_unlock(&wl->mutex); 3392 3393 return err; 3394} 3395 3396static void b43_update_basic_rates(struct b43_wldev *dev, u64 brates) 3397{ 3398 struct ieee80211_supported_band *sband = 3399 dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)]; 3400 struct ieee80211_rate *rate; 3401 int i; 3402 u16 basic, direct, offset, basic_offset, rateptr; 3403 3404 for (i = 0; i < sband->n_bitrates; i++) { 3405 rate = &sband->bitrates[i]; 3406 3407 if (b43_is_cck_rate(rate->hw_value)) { 3408 direct = B43_SHM_SH_CCKDIRECT; 3409 basic = B43_SHM_SH_CCKBASIC; 3410 offset = b43_plcp_get_ratecode_cck(rate->hw_value); 3411 offset &= 0xF; 3412 } else { 3413 direct = B43_SHM_SH_OFDMDIRECT; 3414 basic = B43_SHM_SH_OFDMBASIC; 3415 offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); 3416 offset &= 0xF; 3417 } 3418 3419 rate = ieee80211_get_response_rate(sband, brates, rate->bitrate); 3420 3421 if (b43_is_cck_rate(rate->hw_value)) { 3422 basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value); 3423 basic_offset &= 0xF; 3424 } else { 3425 basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); 3426 basic_offset &= 0xF; 3427 } 3428 3429 /* 3430 * Get the pointer that we need to point to 3431 * from the direct map 3432 */ 3433 rateptr = b43_shm_read16(dev, B43_SHM_SHARED, 3434 direct + 2 * basic_offset); 3435 /* and write it to the basic map */ 3436 b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset, 3437 rateptr); 3438 } 3439} 3440 3441static void b43_op_bss_info_changed(struct ieee80211_hw *hw, 3442 struct ieee80211_vif *vif, 3443 struct ieee80211_bss_conf *conf, 3444 u32 changed) 3445{ 3446 struct b43_wl *wl = hw_to_b43_wl(hw); 3447 struct b43_wldev *dev; 3448 3449 mutex_lock(&wl->mutex); 3450 3451 dev = wl->current_dev; 3452 if (!dev || b43_status(dev) < B43_STAT_STARTED) 3453 goto out_unlock_mutex; 3454 b43_mac_suspend(dev); 3455 3456 if (changed & BSS_CHANGED_BASIC_RATES) 3457 b43_update_basic_rates(dev, conf->basic_rates); 3458 3459 if (changed & BSS_CHANGED_ERP_SLOT) { 3460 if (conf->use_short_slot) 3461 b43_short_slot_timing_enable(dev); 3462 else 3463 b43_short_slot_timing_disable(dev); 3464 } 3465 3466 b43_mac_enable(dev); 3467out_unlock_mutex: 3468 mutex_unlock(&wl->mutex); 3469 3470 return; 3471} 3472 3473static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 3474 const u8 *local_addr, const u8 *addr, 3475 struct ieee80211_key_conf *key) 3476{ 3477 struct b43_wl *wl = hw_to_b43_wl(hw); 3478 struct b43_wldev *dev; 3479 u8 algorithm; 3480 u8 index; 3481 int err; 3482 3483 if (modparam_nohwcrypt) 3484 return -ENOSPC; /* User disabled HW-crypto */ 3485 3486 mutex_lock(&wl->mutex); 3487 spin_lock_irq(&wl->irq_lock); 3488 write_lock(&wl->tx_lock); 3489 /* Why do we need all this locking here? 3490 * mutex -> Every config operation must take it. 3491 * irq_lock -> We modify the dev->key array, which is accessed 3492 * in the IRQ handlers. 3493 * tx_lock -> We modify the dev->key array, which is accessed 3494 * in the TX handler. 3495 */ 3496 3497 dev = wl->current_dev; 3498 err = -ENODEV; 3499 if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) 3500 goto out_unlock; 3501 3502 if (dev->fw.pcm_request_failed) { 3503 /* We don't have firmware for the crypto engine. 3504 * Must use software-crypto. */ 3505 err = -EOPNOTSUPP; 3506 goto out_unlock; 3507 } 3508 3509 err = -EINVAL; 3510 switch (key->alg) { 3511 case ALG_WEP: 3512 if (key->keylen == LEN_WEP40) 3513 algorithm = B43_SEC_ALGO_WEP40; 3514 else 3515 algorithm = B43_SEC_ALGO_WEP104; 3516 break; 3517 case ALG_TKIP: 3518 algorithm = B43_SEC_ALGO_TKIP; 3519 break; 3520 case ALG_CCMP: 3521 algorithm = B43_SEC_ALGO_AES; 3522 break; 3523 default: 3524 B43_WARN_ON(1); 3525 goto out_unlock; 3526 } 3527 index = (u8) (key->keyidx); 3528 if (index > 3) 3529 goto out_unlock; 3530 3531 switch (cmd) { 3532 case SET_KEY: 3533 if (algorithm == B43_SEC_ALGO_TKIP) { 3534 /* FIXME: No TKIP hardware encryption for now. */ 3535 err = -EOPNOTSUPP; 3536 goto out_unlock; 3537 } 3538 3539 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 3540 /* Pairwise key with an assigned MAC address. */ 3541 err = b43_key_write(dev, -1, algorithm, 3542 key->key, key->keylen, addr, key); 3543 } else { 3544 /* Group key */ 3545 err = b43_key_write(dev, index, algorithm, 3546 key->key, key->keylen, NULL, key); 3547 } 3548 if (err) 3549 goto out_unlock; 3550 3551 if (algorithm == B43_SEC_ALGO_WEP40 || 3552 algorithm == B43_SEC_ALGO_WEP104) { 3553 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS); 3554 } else { 3555 b43_hf_write(dev, 3556 b43_hf_read(dev) & ~B43_HF_USEDEFKEYS); 3557 } 3558 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 3559 break; 3560 case DISABLE_KEY: { 3561 err = b43_key_clear(dev, key->hw_key_idx); 3562 if (err) 3563 goto out_unlock; 3564 break; 3565 } 3566 default: 3567 B43_WARN_ON(1); 3568 } 3569 3570out_unlock: 3571 if (!err) { 3572 b43dbg(wl, "%s hardware based encryption for keyidx: %d, " 3573 "mac: %pM\n", 3574 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx, 3575 addr); 3576 b43_dump_keymemory(dev); 3577 } 3578 write_unlock(&wl->tx_lock); 3579 spin_unlock_irq(&wl->irq_lock); 3580 mutex_unlock(&wl->mutex); 3581 3582 return err; 3583} 3584 3585static void b43_op_configure_filter(struct ieee80211_hw *hw, 3586 unsigned int changed, unsigned int *fflags, 3587 int mc_count, struct dev_addr_list *mc_list) 3588{ 3589 struct b43_wl *wl = hw_to_b43_wl(hw); 3590 struct b43_wldev *dev = wl->current_dev; 3591 unsigned long flags; 3592 3593 if (!dev) { 3594 *fflags = 0; 3595 return; 3596 } 3597 3598 spin_lock_irqsave(&wl->irq_lock, flags); 3599 *fflags &= FIF_PROMISC_IN_BSS | 3600 FIF_ALLMULTI | 3601 FIF_FCSFAIL | 3602 FIF_PLCPFAIL | 3603 FIF_CONTROL | 3604 FIF_OTHER_BSS | 3605 FIF_BCN_PRBRESP_PROMISC; 3606 3607 changed &= FIF_PROMISC_IN_BSS | 3608 FIF_ALLMULTI | 3609 FIF_FCSFAIL | 3610 FIF_PLCPFAIL | 3611 FIF_CONTROL | 3612 FIF_OTHER_BSS | 3613 FIF_BCN_PRBRESP_PROMISC; 3614 3615 wl->filter_flags = *fflags; 3616 3617 if (changed && b43_status(dev) >= B43_STAT_INITIALIZED) 3618 b43_adjust_opmode(dev); 3619 spin_unlock_irqrestore(&wl->irq_lock, flags); 3620} 3621 3622static int b43_op_config_interface(struct ieee80211_hw *hw, 3623 struct ieee80211_vif *vif, 3624 struct ieee80211_if_conf *conf) 3625{ 3626 struct b43_wl *wl = hw_to_b43_wl(hw); 3627 struct b43_wldev *dev = wl->current_dev; 3628 unsigned long flags; 3629 3630 if (!dev) 3631 return -ENODEV; 3632 mutex_lock(&wl->mutex); 3633 spin_lock_irqsave(&wl->irq_lock, flags); 3634 B43_WARN_ON(wl->vif != vif); 3635 if (conf->bssid) 3636 memcpy(wl->bssid, conf->bssid, ETH_ALEN); 3637 else 3638 memset(wl->bssid, 0, ETH_ALEN); 3639 if (b43_status(dev) >= B43_STAT_INITIALIZED) { 3640 if (b43_is_mode(wl, NL80211_IFTYPE_AP) || 3641 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) { 3642 B43_WARN_ON(vif->type != wl->if_type); 3643 if (conf->changed & IEEE80211_IFCC_BEACON) 3644 b43_update_templates(wl); 3645 } else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) { 3646 if (conf->changed & IEEE80211_IFCC_BEACON) 3647 b43_update_templates(wl); 3648 } 3649 b43_write_mac_bssid_templates(dev); 3650 } 3651 spin_unlock_irqrestore(&wl->irq_lock, flags); 3652 mutex_unlock(&wl->mutex); 3653 3654 return 0; 3655} 3656 3657/* Locking: wl->mutex */ 3658static void b43_wireless_core_stop(struct b43_wldev *dev) 3659{ 3660 struct b43_wl *wl = dev->wl; 3661 unsigned long flags; 3662 3663 if (b43_status(dev) < B43_STAT_STARTED) 3664 return; 3665 3666 /* Disable and sync interrupts. We must do this before than 3667 * setting the status to INITIALIZED, as the interrupt handler 3668 * won't care about IRQs then. */ 3669 spin_lock_irqsave(&wl->irq_lock, flags); 3670 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL); 3671 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */ 3672 spin_unlock_irqrestore(&wl->irq_lock, flags); 3673 b43_synchronize_irq(dev); 3674 3675 write_lock_irqsave(&wl->tx_lock, flags); 3676 b43_set_status(dev, B43_STAT_INITIALIZED); 3677 write_unlock_irqrestore(&wl->tx_lock, flags); 3678 3679 b43_pio_stop(dev); 3680 mutex_unlock(&wl->mutex); 3681 /* Must unlock as it would otherwise deadlock. No races here. 3682 * Cancel the possibly running self-rearming periodic work. */ 3683 cancel_delayed_work_sync(&dev->periodic_work); 3684 mutex_lock(&wl->mutex); 3685 3686 b43_mac_suspend(dev); 3687 free_irq(dev->dev->irq, dev); 3688 b43dbg(wl, "Wireless interface stopped\n"); 3689} 3690 3691/* Locking: wl->mutex */ 3692static int b43_wireless_core_start(struct b43_wldev *dev) 3693{ 3694 int err; 3695 3696 B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED); 3697 3698 drain_txstatus_queue(dev); 3699 err = request_irq(dev->dev->irq, b43_interrupt_handler, 3700 IRQF_SHARED, KBUILD_MODNAME, dev); 3701 if (err) { 3702 b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq); 3703 goto out; 3704 } 3705 3706 /* We are ready to run. */ 3707 b43_set_status(dev, B43_STAT_STARTED); 3708 3709 /* Start data flow (TX/RX). */ 3710 b43_mac_enable(dev); 3711 b43_interrupt_enable(dev, dev->irq_savedstate); 3712 3713 /* Start maintainance work */ 3714 b43_periodic_tasks_setup(dev); 3715 3716 b43dbg(dev->wl, "Wireless interface started\n"); 3717 out: 3718 return err; 3719} 3720 3721/* Get PHY and RADIO versioning numbers */ 3722static int b43_phy_versioning(struct b43_wldev *dev) 3723{ 3724 struct b43_phy *phy = &dev->phy; 3725 u32 tmp; 3726 u8 analog_type; 3727 u8 phy_type; 3728 u8 phy_rev; 3729 u16 radio_manuf; 3730 u16 radio_ver; 3731 u16 radio_rev; 3732 int unsupported = 0; 3733 3734 /* Get PHY versioning */ 3735 tmp = b43_read16(dev, B43_MMIO_PHY_VER); 3736 analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT; 3737 phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT; 3738 phy_rev = (tmp & B43_PHYVER_VERSION); 3739 switch (phy_type) { 3740 case B43_PHYTYPE_A: 3741 if (phy_rev >= 4) 3742 unsupported = 1; 3743 break; 3744 case B43_PHYTYPE_B: 3745 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 3746 && phy_rev != 7) 3747 unsupported = 1; 3748 break; 3749 case B43_PHYTYPE_G: 3750 if (phy_rev > 9) 3751 unsupported = 1; 3752 break; 3753#ifdef CONFIG_B43_NPHY 3754 case B43_PHYTYPE_N: 3755 if (phy_rev > 1) 3756 unsupported = 1; 3757 break; 3758#endif 3759 default: 3760 unsupported = 1; 3761 }; 3762 if (unsupported) { 3763 b43err(dev->wl, "FOUND UNSUPPORTED PHY " 3764 "(Analog %u, Type %u, Revision %u)\n", 3765 analog_type, phy_type, phy_rev); 3766 return -EOPNOTSUPP; 3767 } 3768 b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n", 3769 analog_type, phy_type, phy_rev); 3770 3771 /* Get RADIO versioning */ 3772 if (dev->dev->bus->chip_id == 0x4317) { 3773 if (dev->dev->bus->chip_rev == 0) 3774 tmp = 0x3205017F; 3775 else if (dev->dev->bus->chip_rev == 1) 3776 tmp = 0x4205017F; 3777 else 3778 tmp = 0x5205017F; 3779 } else { 3780 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); 3781 tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); 3782 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); 3783 tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16; 3784 } 3785 radio_manuf = (tmp & 0x00000FFF); 3786 radio_ver = (tmp & 0x0FFFF000) >> 12; 3787 radio_rev = (tmp & 0xF0000000) >> 28; 3788 if (radio_manuf != 0x17F /* Broadcom */) 3789 unsupported = 1; 3790 switch (phy_type) { 3791 case B43_PHYTYPE_A: 3792 if (radio_ver != 0x2060) 3793 unsupported = 1; 3794 if (radio_rev != 1) 3795 unsupported = 1; 3796 if (radio_manuf != 0x17F) 3797 unsupported = 1; 3798 break; 3799 case B43_PHYTYPE_B: 3800 if ((radio_ver & 0xFFF0) != 0x2050) 3801 unsupported = 1; 3802 break; 3803 case B43_PHYTYPE_G: 3804 if (radio_ver != 0x2050) 3805 unsupported = 1; 3806 break; 3807 case B43_PHYTYPE_N: 3808 if (radio_ver != 0x2055) 3809 unsupported = 1; 3810 break; 3811 default: 3812 B43_WARN_ON(1); 3813 } 3814 if (unsupported) { 3815 b43err(dev->wl, "FOUND UNSUPPORTED RADIO " 3816 "(Manuf 0x%X, Version 0x%X, Revision %u)\n", 3817 radio_manuf, radio_ver, radio_rev); 3818 return -EOPNOTSUPP; 3819 } 3820 b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n", 3821 radio_manuf, radio_ver, radio_rev); 3822 3823 phy->radio_manuf = radio_manuf; 3824 phy->radio_ver = radio_ver; 3825 phy->radio_rev = radio_rev; 3826 3827 phy->analog = analog_type; 3828 phy->type = phy_type; 3829 phy->rev = phy_rev; 3830 3831 return 0; 3832} 3833 3834static void setup_struct_phy_for_init(struct b43_wldev *dev, 3835 struct b43_phy *phy) 3836{ 3837 phy->hardware_power_control = !!modparam_hwpctl; 3838 phy->next_txpwr_check_time = jiffies; 3839 /* PHY TX errors counter. */ 3840 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); 3841} 3842 3843static void setup_struct_wldev_for_init(struct b43_wldev *dev) 3844{ 3845 dev->dfq_valid = 0; 3846 3847 /* Assume the radio is enabled. If it's not enabled, the state will 3848 * immediately get fixed on the first periodic work run. */ 3849 dev->radio_hw_enable = 1; 3850 3851 /* Stats */ 3852 memset(&dev->stats, 0, sizeof(dev->stats)); 3853 3854 setup_struct_phy_for_init(dev, &dev->phy); 3855 3856 /* IRQ related flags */ 3857 dev->irq_reason = 0; 3858 memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); 3859 dev->irq_savedstate = B43_IRQ_MASKTEMPLATE; 3860 3861 dev->mac_suspended = 1; 3862 3863 /* Noise calculation context */ 3864 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc)); 3865} 3866 3867static void b43_bluetooth_coext_enable(struct b43_wldev *dev) 3868{ 3869 struct ssb_sprom *sprom = &dev->dev->bus->sprom; 3870 u64 hf; 3871 3872 if (!modparam_btcoex) 3873 return; 3874 if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST)) 3875 return; 3876 if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode) 3877 return; 3878 3879 hf = b43_hf_read(dev); 3880 if (sprom->boardflags_lo & B43_BFL_BTCMOD) 3881 hf |= B43_HF_BTCOEXALT; 3882 else 3883 hf |= B43_HF_BTCOEX; 3884 b43_hf_write(dev, hf); 3885} 3886 3887static void b43_bluetooth_coext_disable(struct b43_wldev *dev) 3888{ 3889 if (!modparam_btcoex) 3890 return; 3891 //TODO 3892} 3893 3894static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) 3895{ 3896#ifdef CONFIG_SSB_DRIVER_PCICORE 3897 struct ssb_bus *bus = dev->dev->bus; 3898 u32 tmp; 3899 3900 if (bus->pcicore.dev && 3901 bus->pcicore.dev->id.coreid == SSB_DEV_PCI && 3902 bus->pcicore.dev->id.revision <= 5) { 3903 /* IMCFGLO timeouts workaround. */ 3904 tmp = ssb_read32(dev->dev, SSB_IMCFGLO); 3905 tmp &= ~SSB_IMCFGLO_REQTO; 3906 tmp &= ~SSB_IMCFGLO_SERTO; 3907 switch (bus->bustype) { 3908 case SSB_BUSTYPE_PCI: 3909 case SSB_BUSTYPE_PCMCIA: 3910 tmp |= 0x32; 3911 break; 3912 case SSB_BUSTYPE_SSB: 3913 tmp |= 0x53; 3914 break; 3915 } 3916 ssb_write32(dev->dev, SSB_IMCFGLO, tmp); 3917 } 3918#endif /* CONFIG_SSB_DRIVER_PCICORE */ 3919} 3920 3921static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle) 3922{ 3923 u16 pu_delay; 3924 3925 /* The time value is in microseconds. */ 3926 if (dev->phy.type == B43_PHYTYPE_A) 3927 pu_delay = 3700; 3928 else 3929 pu_delay = 1050; 3930 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle) 3931 pu_delay = 500; 3932 if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8)) 3933 pu_delay = max(pu_delay, (u16)2400); 3934 3935 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay); 3936} 3937 3938/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */ 3939static void b43_set_pretbtt(struct b43_wldev *dev) 3940{ 3941 u16 pretbtt; 3942 3943 /* The time value is in microseconds. */ 3944 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) { 3945 pretbtt = 2; 3946 } else { 3947 if (dev->phy.type == B43_PHYTYPE_A) 3948 pretbtt = 120; 3949 else 3950 pretbtt = 250; 3951 } 3952 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt); 3953 b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt); 3954} 3955 3956/* Shutdown a wireless core */ 3957/* Locking: wl->mutex */ 3958static void b43_wireless_core_exit(struct b43_wldev *dev) 3959{ 3960 u32 macctl; 3961 3962 B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED); 3963 if (b43_status(dev) != B43_STAT_INITIALIZED) 3964 return; 3965 b43_set_status(dev, B43_STAT_UNINIT); 3966 3967 /* Stop the microcode PSM. */ 3968 macctl = b43_read32(dev, B43_MMIO_MACCTL); 3969 macctl &= ~B43_MACCTL_PSM_RUN; 3970 macctl |= B43_MACCTL_PSM_JMP0; 3971 b43_write32(dev, B43_MMIO_MACCTL, macctl); 3972 3973 if (!dev->suspend_in_progress) { 3974 b43_leds_exit(dev); 3975 b43_rng_exit(dev->wl); 3976 } 3977 b43_dma_free(dev); 3978 b43_pio_free(dev); 3979 b43_chip_exit(dev); 3980 dev->phy.ops->switch_analog(dev, 0); 3981 if (dev->wl->current_beacon) { 3982 dev_kfree_skb_any(dev->wl->current_beacon); 3983 dev->wl->current_beacon = NULL; 3984 } 3985 3986 ssb_device_disable(dev->dev, 0); 3987 ssb_bus_may_powerdown(dev->dev->bus); 3988} 3989 3990/* Initialize a wireless core */ 3991static int b43_wireless_core_init(struct b43_wldev *dev) 3992{ 3993 struct b43_wl *wl = dev->wl; 3994 struct ssb_bus *bus = dev->dev->bus; 3995 struct ssb_sprom *sprom = &bus->sprom; 3996 struct b43_phy *phy = &dev->phy; 3997 int err; 3998 u64 hf; 3999 u32 tmp; 4000 4001 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); 4002 4003 err = ssb_bus_powerup(bus, 0); 4004 if (err) 4005 goto out; 4006 if (!ssb_device_is_enabled(dev->dev)) { 4007 tmp = phy->gmode ? B43_TMSLOW_GMODE : 0; 4008 b43_wireless_core_reset(dev, tmp); 4009 } 4010 4011 /* Reset all data structures. */ 4012 setup_struct_wldev_for_init(dev); 4013 phy->ops->prepare_structs(dev); 4014 4015 /* Enable IRQ routing to this device. */ 4016 ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev); 4017 4018 b43_imcfglo_timeouts_workaround(dev); 4019 b43_bluetooth_coext_disable(dev); 4020 if (phy->ops->prepare_hardware) { 4021 err = phy->ops->prepare_hardware(dev); 4022 if (err) 4023 goto err_busdown; 4024 } 4025 err = b43_chip_init(dev); 4026 if (err) 4027 goto err_busdown; 4028 b43_shm_write16(dev, B43_SHM_SHARED, 4029 B43_SHM_SH_WLCOREREV, dev->dev->id.revision); 4030 hf = b43_hf_read(dev); 4031 if (phy->type == B43_PHYTYPE_G) { 4032 hf |= B43_HF_SYMW; 4033 if (phy->rev == 1) 4034 hf |= B43_HF_GDCW; 4035 if (sprom->boardflags_lo & B43_BFL_PACTRL) 4036 hf |= B43_HF_OFDMPABOOST; 4037 } else if (phy->type == B43_PHYTYPE_B) { 4038 hf |= B43_HF_SYMW; 4039 if (phy->rev >= 2 && phy->radio_ver == 0x2050) 4040 hf &= ~B43_HF_GDCW; 4041 } 4042 b43_hf_write(dev, hf); 4043 4044 b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT, 4045 B43_DEFAULT_LONG_RETRY_LIMIT); 4046 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3); 4047 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2); 4048 4049 /* Disable sending probe responses from firmware. 4050 * Setting the MaxTime to one usec will always trigger 4051 * a timeout, so we never send any probe resp. 4052 * A timeout of zero is infinite. */ 4053 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1); 4054 4055 b43_rate_memory_init(dev); 4056 b43_set_phytxctl_defaults(dev); 4057 4058 /* Minimum Contention Window */ 4059 if (phy->type == B43_PHYTYPE_B) { 4060 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F); 4061 } else { 4062 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF); 4063 } 4064 /* Maximum Contention Window */ 4065 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF); 4066 4067 if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || B43_FORCE_PIO) { 4068 dev->__using_pio_transfers = 1; 4069 err = b43_pio_init(dev); 4070 } else { 4071 dev->__using_pio_transfers = 0; 4072 err = b43_dma_init(dev); 4073 } 4074 if (err) 4075 goto err_chip_exit; 4076 b43_qos_init(dev); 4077 b43_set_synth_pu_delay(dev, 1); 4078 b43_bluetooth_coext_enable(dev); 4079 4080 ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */ 4081 b43_upload_card_macaddress(dev); 4082 b43_security_init(dev); 4083 if (!dev->suspend_in_progress) 4084 b43_rng_init(wl); 4085 4086 b43_set_status(dev, B43_STAT_INITIALIZED); 4087 4088 if (!dev->suspend_in_progress) 4089 b43_leds_init(dev); 4090out: 4091 return err; 4092 4093err_chip_exit: 4094 b43_chip_exit(dev); 4095err_busdown: 4096 ssb_bus_may_powerdown(bus); 4097 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); 4098 return err; 4099} 4100 4101static int b43_op_add_interface(struct ieee80211_hw *hw, 4102 struct ieee80211_if_init_conf *conf) 4103{ 4104 struct b43_wl *wl = hw_to_b43_wl(hw); 4105 struct b43_wldev *dev; 4106 unsigned long flags; 4107 int err = -EOPNOTSUPP; 4108 4109 /* TODO: allow WDS/AP devices to coexist */ 4110 4111 if (conf->type != NL80211_IFTYPE_AP && 4112 conf->type != NL80211_IFTYPE_MESH_POINT && 4113 conf->type != NL80211_IFTYPE_STATION && 4114 conf->type != NL80211_IFTYPE_WDS && 4115 conf->type != NL80211_IFTYPE_ADHOC) 4116 return -EOPNOTSUPP; 4117 4118 mutex_lock(&wl->mutex); 4119 if (wl->operating) 4120 goto out_mutex_unlock; 4121 4122 b43dbg(wl, "Adding Interface type %d\n", conf->type); 4123 4124 dev = wl->current_dev; 4125 wl->operating = 1; 4126 wl->vif = conf->vif; 4127 wl->if_type = conf->type; 4128 memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN); 4129 4130 spin_lock_irqsave(&wl->irq_lock, flags); 4131 b43_adjust_opmode(dev); 4132 b43_set_pretbtt(dev); 4133 b43_set_synth_pu_delay(dev, 0); 4134 b43_upload_card_macaddress(dev); 4135 spin_unlock_irqrestore(&wl->irq_lock, flags); 4136 4137 err = 0; 4138 out_mutex_unlock: 4139 mutex_unlock(&wl->mutex); 4140 4141 return err; 4142} 4143 4144static void b43_op_remove_interface(struct ieee80211_hw *hw, 4145 struct ieee80211_if_init_conf *conf) 4146{ 4147 struct b43_wl *wl = hw_to_b43_wl(hw); 4148 struct b43_wldev *dev = wl->current_dev; 4149 unsigned long flags; 4150 4151 b43dbg(wl, "Removing Interface type %d\n", conf->type); 4152 4153 mutex_lock(&wl->mutex); 4154 4155 B43_WARN_ON(!wl->operating); 4156 B43_WARN_ON(wl->vif != conf->vif); 4157 wl->vif = NULL; 4158 4159 wl->operating = 0; 4160 4161 spin_lock_irqsave(&wl->irq_lock, flags); 4162 b43_adjust_opmode(dev); 4163 memset(wl->mac_addr, 0, ETH_ALEN); 4164 b43_upload_card_macaddress(dev); 4165 spin_unlock_irqrestore(&wl->irq_lock, flags); 4166 4167 mutex_unlock(&wl->mutex); 4168} 4169 4170static int b43_op_start(struct ieee80211_hw *hw) 4171{ 4172 struct b43_wl *wl = hw_to_b43_wl(hw); 4173 struct b43_wldev *dev = wl->current_dev; 4174 int did_init = 0; 4175 int err = 0; 4176 bool do_rfkill_exit = 0; 4177 4178 /* Kill all old instance specific information to make sure 4179 * the card won't use it in the short timeframe between start 4180 * and mac80211 reconfiguring it. */ 4181 memset(wl->bssid, 0, ETH_ALEN); 4182 memset(wl->mac_addr, 0, ETH_ALEN); 4183 wl->filter_flags = 0; 4184 wl->radiotap_enabled = 0; 4185 b43_qos_clear(wl); 4186 wl->beacon0_uploaded = 0; 4187 wl->beacon1_uploaded = 0; 4188 wl->beacon_templates_virgin = 1; 4189 4190 /* First register RFkill. 4191 * LEDs that are registered later depend on it. */ 4192 b43_rfkill_init(dev); 4193 4194 mutex_lock(&wl->mutex); 4195 4196 if (b43_status(dev) < B43_STAT_INITIALIZED) { 4197 err = b43_wireless_core_init(dev); 4198 if (err) { 4199 do_rfkill_exit = 1; 4200 goto out_mutex_unlock; 4201 } 4202 did_init = 1; 4203 } 4204 4205 if (b43_status(dev) < B43_STAT_STARTED) { 4206 err = b43_wireless_core_start(dev); 4207 if (err) { 4208 if (did_init) 4209 b43_wireless_core_exit(dev); 4210 do_rfkill_exit = 1; 4211 goto out_mutex_unlock; 4212 } 4213 } 4214 4215 out_mutex_unlock: 4216 mutex_unlock(&wl->mutex); 4217 4218 if (do_rfkill_exit) 4219 b43_rfkill_exit(dev); 4220 4221 return err; 4222} 4223 4224static void b43_op_stop(struct ieee80211_hw *hw) 4225{ 4226 struct b43_wl *wl = hw_to_b43_wl(hw); 4227 struct b43_wldev *dev = wl->current_dev; 4228 4229 b43_rfkill_exit(dev); 4230 cancel_work_sync(&(wl->beacon_update_trigger)); 4231 4232 mutex_lock(&wl->mutex); 4233 if (b43_status(dev) >= B43_STAT_STARTED) 4234 b43_wireless_core_stop(dev); 4235 b43_wireless_core_exit(dev); 4236 mutex_unlock(&wl->mutex); 4237 4238 cancel_work_sync(&(wl->txpower_adjust_work)); 4239} 4240 4241static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, 4242 struct ieee80211_sta *sta, bool set) 4243{ 4244 struct b43_wl *wl = hw_to_b43_wl(hw); 4245 unsigned long flags; 4246 4247 spin_lock_irqsave(&wl->irq_lock, flags); 4248 b43_update_templates(wl); 4249 spin_unlock_irqrestore(&wl->irq_lock, flags); 4250 4251 return 0; 4252} 4253 4254static void b43_op_sta_notify(struct ieee80211_hw *hw, 4255 struct ieee80211_vif *vif, 4256 enum sta_notify_cmd notify_cmd, 4257 struct ieee80211_sta *sta) 4258{ 4259 struct b43_wl *wl = hw_to_b43_wl(hw); 4260 4261 B43_WARN_ON(!vif || wl->vif != vif); 4262} 4263 4264static const struct ieee80211_ops b43_hw_ops = { 4265 .tx = b43_op_tx, 4266 .conf_tx = b43_op_conf_tx, 4267 .add_interface = b43_op_add_interface, 4268 .remove_interface = b43_op_remove_interface, 4269 .config = b43_op_config, 4270 .bss_info_changed = b43_op_bss_info_changed, 4271 .config_interface = b43_op_config_interface, 4272 .configure_filter = b43_op_configure_filter, 4273 .set_key = b43_op_set_key, 4274 .get_stats = b43_op_get_stats, 4275 .get_tx_stats = b43_op_get_tx_stats, 4276 .start = b43_op_start, 4277 .stop = b43_op_stop, 4278 .set_tim = b43_op_beacon_set_tim, 4279 .sta_notify = b43_op_sta_notify, 4280}; 4281 4282/* Hard-reset the chip. Do not call this directly. 4283 * Use b43_controller_restart() 4284 */ 4285static void b43_chip_reset(struct work_struct *work) 4286{ 4287 struct b43_wldev *dev = 4288 container_of(work, struct b43_wldev, restart_work); 4289 struct b43_wl *wl = dev->wl; 4290 int err = 0; 4291 int prev_status; 4292 4293 mutex_lock(&wl->mutex); 4294 4295 prev_status = b43_status(dev); 4296 /* Bring the device down... */ 4297 if (prev_status >= B43_STAT_STARTED) 4298 b43_wireless_core_stop(dev); 4299 if (prev_status >= B43_STAT_INITIALIZED) 4300 b43_wireless_core_exit(dev); 4301 4302 /* ...and up again. */ 4303 if (prev_status >= B43_STAT_INITIALIZED) { 4304 err = b43_wireless_core_init(dev); 4305 if (err) 4306 goto out; 4307 } 4308 if (prev_status >= B43_STAT_STARTED) { 4309 err = b43_wireless_core_start(dev); 4310 if (err) { 4311 b43_wireless_core_exit(dev); 4312 goto out; 4313 } 4314 } 4315out: 4316 if (err) 4317 wl->current_dev = NULL; /* Failed to init the dev. */ 4318 mutex_unlock(&wl->mutex); 4319 if (err) 4320 b43err(wl, "Controller restart FAILED\n"); 4321 else 4322 b43info(wl, "Controller restarted\n"); 4323} 4324 4325static int b43_setup_bands(struct b43_wldev *dev, 4326 bool have_2ghz_phy, bool have_5ghz_phy) 4327{ 4328 struct ieee80211_hw *hw = dev->wl->hw; 4329 4330 if (have_2ghz_phy) 4331 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz; 4332 if (dev->phy.type == B43_PHYTYPE_N) { 4333 if (have_5ghz_phy) 4334 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy; 4335 } else { 4336 if (have_5ghz_phy) 4337 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy; 4338 } 4339 4340 dev->phy.supports_2ghz = have_2ghz_phy; 4341 dev->phy.supports_5ghz = have_5ghz_phy; 4342 4343 return 0; 4344} 4345 4346static void b43_wireless_core_detach(struct b43_wldev *dev) 4347{ 4348 /* We release firmware that late to not be required to re-request 4349 * is all the time when we reinit the core. */ 4350 b43_release_firmware(dev); 4351 b43_phy_free(dev); 4352} 4353 4354static int b43_wireless_core_attach(struct b43_wldev *dev) 4355{ 4356 struct b43_wl *wl = dev->wl; 4357 struct ssb_bus *bus = dev->dev->bus; 4358 struct pci_dev *pdev = bus->host_pci; 4359 int err; 4360 bool have_2ghz_phy = 0, have_5ghz_phy = 0; 4361 u32 tmp; 4362 4363 /* Do NOT do any device initialization here. 4364 * Do it in wireless_core_init() instead. 4365 * This function is for gathering basic information about the HW, only. 4366 * Also some structs may be set up here. But most likely you want to have 4367 * that in core_init(), too. 4368 */ 4369 4370 err = ssb_bus_powerup(bus, 0); 4371 if (err) { 4372 b43err(wl, "Bus powerup failed\n"); 4373 goto out; 4374 } 4375 /* Get the PHY type. */ 4376 if (dev->dev->id.revision >= 5) { 4377 u32 tmshigh; 4378 4379 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); 4380 have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY); 4381 have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY); 4382 } else 4383 B43_WARN_ON(1); 4384 4385 dev->phy.gmode = have_2ghz_phy; 4386 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; 4387 b43_wireless_core_reset(dev, tmp); 4388 4389 err = b43_phy_versioning(dev); 4390 if (err) 4391 goto err_powerdown; 4392 /* Check if this device supports multiband. */ 4393 if (!pdev || 4394 (pdev->device != 0x4312 && 4395 pdev->device != 0x4319 && pdev->device != 0x4324)) { 4396 /* No multiband support. */ 4397 have_2ghz_phy = 0; 4398 have_5ghz_phy = 0; 4399 switch (dev->phy.type) { 4400 case B43_PHYTYPE_A: 4401 have_5ghz_phy = 1; 4402 break; 4403 case B43_PHYTYPE_G: 4404 case B43_PHYTYPE_N: 4405 have_2ghz_phy = 1; 4406 break; 4407 default: 4408 B43_WARN_ON(1); 4409 } 4410 } 4411 if (dev->phy.type == B43_PHYTYPE_A) { 4412 /* FIXME */ 4413 b43err(wl, "IEEE 802.11a devices are unsupported\n"); 4414 err = -EOPNOTSUPP; 4415 goto err_powerdown; 4416 } 4417 if (1 /* disable A-PHY */) { 4418 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */ 4419 if (dev->phy.type != B43_PHYTYPE_N) { 4420 have_2ghz_phy = 1; 4421 have_5ghz_phy = 0; 4422 } 4423 } 4424 4425 err = b43_phy_allocate(dev); 4426 if (err) 4427 goto err_powerdown; 4428 4429 dev->phy.gmode = have_2ghz_phy; 4430 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; 4431 b43_wireless_core_reset(dev, tmp); 4432 4433 err = b43_validate_chipaccess(dev); 4434 if (err) 4435 goto err_phy_free; 4436 err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy); 4437 if (err) 4438 goto err_phy_free; 4439 4440 /* Now set some default "current_dev" */ 4441 if (!wl->current_dev) 4442 wl->current_dev = dev; 4443 INIT_WORK(&dev->restart_work, b43_chip_reset); 4444 4445 dev->phy.ops->switch_analog(dev, 0); 4446 ssb_device_disable(dev->dev, 0); 4447 ssb_bus_may_powerdown(bus); 4448 4449out: 4450 return err; 4451 4452err_phy_free: 4453 b43_phy_free(dev); 4454err_powerdown: 4455 ssb_bus_may_powerdown(bus); 4456 return err; 4457} 4458 4459static void b43_one_core_detach(struct ssb_device *dev) 4460{ 4461 struct b43_wldev *wldev; 4462 struct b43_wl *wl; 4463 4464 /* Do not cancel ieee80211-workqueue based work here. 4465 * See comment in b43_remove(). */ 4466 4467 wldev = ssb_get_drvdata(dev); 4468 wl = wldev->wl; 4469 b43_debugfs_remove_device(wldev); 4470 b43_wireless_core_detach(wldev); 4471 list_del(&wldev->list); 4472 wl->nr_devs--; 4473 ssb_set_drvdata(dev, NULL); 4474 kfree(wldev); 4475} 4476 4477static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl) 4478{ 4479 struct b43_wldev *wldev; 4480 struct pci_dev *pdev; 4481 int err = -ENOMEM; 4482 4483 if (!list_empty(&wl->devlist)) { 4484 /* We are not the first core on this chip. */ 4485 pdev = dev->bus->host_pci; 4486 /* Only special chips support more than one wireless 4487 * core, although some of the other chips have more than 4488 * one wireless core as well. Check for this and 4489 * bail out early. 4490 */ 4491 if (!pdev || 4492 ((pdev->device != 0x4321) && 4493 (pdev->device != 0x4313) && (pdev->device != 0x431A))) { 4494 b43dbg(wl, "Ignoring unconnected 802.11 core\n"); 4495 return -ENODEV; 4496 } 4497 } 4498 4499 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL); 4500 if (!wldev) 4501 goto out; 4502 4503 wldev->dev = dev; 4504 wldev->wl = wl; 4505 b43_set_status(wldev, B43_STAT_UNINIT); 4506 wldev->bad_frames_preempt = modparam_bad_frames_preempt; 4507 tasklet_init(&wldev->isr_tasklet, 4508 (void (*)(unsigned long))b43_interrupt_tasklet, 4509 (unsigned long)wldev); 4510 INIT_LIST_HEAD(&wldev->list); 4511 4512 err = b43_wireless_core_attach(wldev); 4513 if (err) 4514 goto err_kfree_wldev; 4515 4516 list_add(&wldev->list, &wl->devlist); 4517 wl->nr_devs++; 4518 ssb_set_drvdata(dev, wldev); 4519 b43_debugfs_add_device(wldev); 4520 4521 out: 4522 return err; 4523 4524 err_kfree_wldev: 4525 kfree(wldev); 4526 return err; 4527} 4528 4529#define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \ 4530 (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \ 4531 (pdev->device == _device) && \ 4532 (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \ 4533 (pdev->subsystem_device == _subdevice) ) 4534 4535static void b43_sprom_fixup(struct ssb_bus *bus) 4536{ 4537 struct pci_dev *pdev; 4538 4539 /* boardflags workarounds */ 4540 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL && 4541 bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74) 4542 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST; 4543 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE && 4544 bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40) 4545 bus->sprom.boardflags_lo |= B43_BFL_PACTRL; 4546 if (bus->bustype == SSB_BUSTYPE_PCI) { 4547 pdev = bus->host_pci; 4548 if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) || 4549 IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) || 4550 IS_PDEV(pdev, BROADCOM, 0x4320, HP, 0x12f8) || 4551 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) || 4552 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) || 4553 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) || 4554 IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010)) 4555 bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST; 4556 } 4557} 4558 4559static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl) 4560{ 4561 struct ieee80211_hw *hw = wl->hw; 4562 4563 ssb_set_devtypedata(dev, NULL); 4564 ieee80211_free_hw(hw); 4565} 4566 4567static int b43_wireless_init(struct ssb_device *dev) 4568{ 4569 struct ssb_sprom *sprom = &dev->bus->sprom; 4570 struct ieee80211_hw *hw; 4571 struct b43_wl *wl; 4572 int err = -ENOMEM; 4573 4574 b43_sprom_fixup(dev->bus); 4575 4576 hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops); 4577 if (!hw) { 4578 b43err(NULL, "Could not allocate ieee80211 device\n"); 4579 goto out; 4580 } 4581 4582 /* fill hw info */ 4583 hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | 4584 IEEE80211_HW_SIGNAL_DBM | 4585 IEEE80211_HW_NOISE_DBM; 4586 4587 hw->wiphy->interface_modes = 4588 BIT(NL80211_IFTYPE_AP) | 4589 BIT(NL80211_IFTYPE_MESH_POINT) | 4590 BIT(NL80211_IFTYPE_STATION) | 4591 BIT(NL80211_IFTYPE_WDS) | 4592 BIT(NL80211_IFTYPE_ADHOC); 4593 4594 hw->queues = b43_modparam_qos ? 4 : 1; 4595 hw->max_rates = 2; 4596 SET_IEEE80211_DEV(hw, dev->dev); 4597 if (is_valid_ether_addr(sprom->et1mac)) 4598 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); 4599 else 4600 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac); 4601 4602 /* Get and initialize struct b43_wl */ 4603 wl = hw_to_b43_wl(hw); 4604 memset(wl, 0, sizeof(*wl)); 4605 wl->hw = hw; 4606 spin_lock_init(&wl->irq_lock); 4607 rwlock_init(&wl->tx_lock); 4608 spin_lock_init(&wl->leds_lock); 4609 spin_lock_init(&wl->shm_lock); 4610 mutex_init(&wl->mutex); 4611 INIT_LIST_HEAD(&wl->devlist); 4612 INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work); 4613 INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work); 4614 4615 ssb_set_devtypedata(dev, wl); 4616 b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id); 4617 err = 0; 4618 out: 4619 return err; 4620} 4621 4622static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id) 4623{ 4624 struct b43_wl *wl; 4625 int err; 4626 int first = 0; 4627 4628 wl = ssb_get_devtypedata(dev); 4629 if (!wl) { 4630 /* Probing the first core. Must setup common struct b43_wl */ 4631 first = 1; 4632 err = b43_wireless_init(dev); 4633 if (err) 4634 goto out; 4635 wl = ssb_get_devtypedata(dev); 4636 B43_WARN_ON(!wl); 4637 } 4638 err = b43_one_core_attach(dev, wl); 4639 if (err) 4640 goto err_wireless_exit; 4641 4642 if (first) { 4643 err = ieee80211_register_hw(wl->hw); 4644 if (err) 4645 goto err_one_core_detach; 4646 } 4647 4648 out: 4649 return err; 4650 4651 err_one_core_detach: 4652 b43_one_core_detach(dev); 4653 err_wireless_exit: 4654 if (first) 4655 b43_wireless_exit(dev, wl); 4656 return err; 4657} 4658 4659static void b43_remove(struct ssb_device *dev) 4660{ 4661 struct b43_wl *wl = ssb_get_devtypedata(dev); 4662 struct b43_wldev *wldev = ssb_get_drvdata(dev); 4663 4664 /* We must cancel any work here before unregistering from ieee80211, 4665 * as the ieee80211 unreg will destroy the workqueue. */ 4666 cancel_work_sync(&wldev->restart_work); 4667 4668 B43_WARN_ON(!wl); 4669 if (wl->current_dev == wldev) 4670 ieee80211_unregister_hw(wl->hw); 4671 4672 b43_one_core_detach(dev); 4673 4674 if (list_empty(&wl->devlist)) { 4675 /* Last core on the chip unregistered. 4676 * We can destroy common struct b43_wl. 4677 */ 4678 b43_wireless_exit(dev, wl); 4679 } 4680} 4681 4682/* Perform a hardware reset. This can be called from any context. */ 4683void b43_controller_restart(struct b43_wldev *dev, const char *reason) 4684{ 4685 /* Must avoid requeueing, if we are in shutdown. */ 4686 if (b43_status(dev) < B43_STAT_INITIALIZED) 4687 return; 4688 b43info(dev->wl, "Controller RESET (%s) ...\n", reason); 4689 queue_work(dev->wl->hw->workqueue, &dev->restart_work); 4690} 4691 4692#ifdef CONFIG_PM 4693 4694static int b43_suspend(struct ssb_device *dev, pm_message_t state) 4695{ 4696 struct b43_wldev *wldev = ssb_get_drvdata(dev); 4697 struct b43_wl *wl = wldev->wl; 4698 4699 b43dbg(wl, "Suspending...\n"); 4700 4701 mutex_lock(&wl->mutex); 4702 wldev->suspend_in_progress = true; 4703 wldev->suspend_init_status = b43_status(wldev); 4704 if (wldev->suspend_init_status >= B43_STAT_STARTED) 4705 b43_wireless_core_stop(wldev); 4706 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) 4707 b43_wireless_core_exit(wldev); 4708 mutex_unlock(&wl->mutex); 4709 4710 b43dbg(wl, "Device suspended.\n"); 4711 4712 return 0; 4713} 4714 4715static int b43_resume(struct ssb_device *dev) 4716{ 4717 struct b43_wldev *wldev = ssb_get_drvdata(dev); 4718 struct b43_wl *wl = wldev->wl; 4719 int err = 0; 4720 4721 b43dbg(wl, "Resuming...\n"); 4722 4723 mutex_lock(&wl->mutex); 4724 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) { 4725 err = b43_wireless_core_init(wldev); 4726 if (err) { 4727 b43err(wl, "Resume failed at core init\n"); 4728 goto out; 4729 } 4730 } 4731 if (wldev->suspend_init_status >= B43_STAT_STARTED) { 4732 err = b43_wireless_core_start(wldev); 4733 if (err) { 4734 b43_leds_exit(wldev); 4735 b43_rng_exit(wldev->wl); 4736 b43_wireless_core_exit(wldev); 4737 b43err(wl, "Resume failed at core start\n"); 4738 goto out; 4739 } 4740 } 4741 b43dbg(wl, "Device resumed.\n"); 4742 out: 4743 wldev->suspend_in_progress = false; 4744 mutex_unlock(&wl->mutex); 4745 return err; 4746} 4747 4748#else /* CONFIG_PM */ 4749# define b43_suspend NULL 4750# define b43_resume NULL 4751#endif /* CONFIG_PM */ 4752 4753static struct ssb_driver b43_ssb_driver = { 4754 .name = KBUILD_MODNAME, 4755 .id_table = b43_ssb_tbl, 4756 .probe = b43_probe, 4757 .remove = b43_remove, 4758 .suspend = b43_suspend, 4759 .resume = b43_resume, 4760}; 4761 4762static void b43_print_driverinfo(void) 4763{ 4764 const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "", 4765 *feat_leds = "", *feat_rfkill = ""; 4766 4767#ifdef CONFIG_B43_PCI_AUTOSELECT 4768 feat_pci = "P"; 4769#endif 4770#ifdef CONFIG_B43_PCMCIA 4771 feat_pcmcia = "M"; 4772#endif 4773#ifdef CONFIG_B43_NPHY 4774 feat_nphy = "N"; 4775#endif 4776#ifdef CONFIG_B43_LEDS 4777 feat_leds = "L"; 4778#endif 4779#ifdef CONFIG_B43_RFKILL 4780 feat_rfkill = "R"; 4781#endif 4782 printk(KERN_INFO "Broadcom 43xx driver loaded " 4783 "[ Features: %s%s%s%s%s, Firmware-ID: " 4784 B43_SUPPORTED_FIRMWARE_ID " ]\n", 4785 feat_pci, feat_pcmcia, feat_nphy, 4786 feat_leds, feat_rfkill); 4787} 4788 4789static int __init b43_init(void) 4790{ 4791 int err; 4792 4793 b43_debugfs_init(); 4794 err = b43_pcmcia_init(); 4795 if (err) 4796 goto err_dfs_exit; 4797 err = ssb_driver_register(&b43_ssb_driver); 4798 if (err) 4799 goto err_pcmcia_exit; 4800 b43_print_driverinfo(); 4801 4802 return err; 4803 4804err_pcmcia_exit: 4805 b43_pcmcia_exit(); 4806err_dfs_exit: 4807 b43_debugfs_exit(); 4808 return err; 4809} 4810 4811static void __exit b43_exit(void) 4812{ 4813 ssb_driver_unregister(&b43_ssb_driver); 4814 b43_pcmcia_exit(); 4815 b43_debugfs_exit(); 4816} 4817 4818module_init(b43_init) 4819module_exit(b43_exit) 4820