Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Broadcom B43legacy wireless driver |
| 4 | * |
| 5 | * Copyright (c) 2005 Martin Langer <martin-langer@gmx.de> |
Stefano Brivio | 6fff1c6 | 2008-02-09 07:20:43 +0100 | [diff] [blame] | 6 | * Copyright (c) 2005-2008 Stefano Brivio <stefano.brivio@polimi.it> |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 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 | * Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net> |
| 11 | * |
| 12 | * Some parts of the code in this file are derived from the ipw2200 |
| 13 | * driver Copyright(c) 2003 - 2004 Intel Corporation. |
| 14 | |
| 15 | * This program is free software; you can redistribute it and/or modify |
| 16 | * it under the terms of the GNU General Public License as published by |
| 17 | * the Free Software Foundation; either version 2 of the License, or |
| 18 | * (at your option) any later version. |
| 19 | * |
| 20 | * This program is distributed in the hope that it will be useful, |
| 21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | * GNU General Public License for more details. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License |
| 26 | * along with this program; see the file COPYING. If not, write to |
| 27 | * the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, |
| 28 | * Boston, MA 02110-1301, USA. |
| 29 | * |
| 30 | */ |
| 31 | |
| 32 | #include <linux/delay.h> |
| 33 | #include <linux/init.h> |
| 34 | #include <linux/moduleparam.h> |
| 35 | #include <linux/if_arp.h> |
| 36 | #include <linux/etherdevice.h> |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 37 | #include <linux/firmware.h> |
| 38 | #include <linux/wireless.h> |
| 39 | #include <linux/workqueue.h> |
Alexey Dobriyan | d43c36d | 2009-10-07 17:09:06 +0400 | [diff] [blame] | 40 | #include <linux/sched.h> |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 41 | #include <linux/skbuff.h> |
| 42 | #include <linux/dma-mapping.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 43 | #include <linux/slab.h> |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 44 | #include <net/dst.h> |
| 45 | #include <asm/unaligned.h> |
| 46 | |
| 47 | #include "b43legacy.h" |
| 48 | #include "main.h" |
| 49 | #include "debugfs.h" |
| 50 | #include "phy.h" |
| 51 | #include "dma.h" |
| 52 | #include "pio.h" |
| 53 | #include "sysfs.h" |
| 54 | #include "xmit.h" |
| 55 | #include "radio.h" |
| 56 | |
| 57 | |
| 58 | MODULE_DESCRIPTION("Broadcom B43legacy wireless driver"); |
| 59 | MODULE_AUTHOR("Martin Langer"); |
| 60 | MODULE_AUTHOR("Stefano Brivio"); |
| 61 | MODULE_AUTHOR("Michael Buesch"); |
| 62 | MODULE_LICENSE("GPL"); |
| 63 | |
Stefano Brivio | 1a1c360 | 2008-02-12 03:09:00 +0100 | [diff] [blame] | 64 | MODULE_FIRMWARE(B43legacy_SUPPORTED_FIRMWARE_ID); |
Tim Gardner | c2f4f52 | 2010-01-12 12:58:17 -0600 | [diff] [blame] | 65 | MODULE_FIRMWARE("b43legacy/ucode2.fw"); |
| 66 | MODULE_FIRMWARE("b43legacy/ucode4.fw"); |
Stefano Brivio | 1a1c360 | 2008-02-12 03:09:00 +0100 | [diff] [blame] | 67 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 68 | #if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO) |
| 69 | static int modparam_pio; |
| 70 | module_param_named(pio, modparam_pio, int, 0444); |
| 71 | MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode"); |
| 72 | #elif defined(CONFIG_B43LEGACY_DMA) |
| 73 | # define modparam_pio 0 |
| 74 | #elif defined(CONFIG_B43LEGACY_PIO) |
| 75 | # define modparam_pio 1 |
| 76 | #endif |
| 77 | |
| 78 | static int modparam_bad_frames_preempt; |
| 79 | module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); |
| 80 | MODULE_PARM_DESC(bad_frames_preempt, "enable(1) / disable(0) Bad Frames" |
| 81 | " Preemption"); |
| 82 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 83 | static char modparam_fwpostfix[16]; |
| 84 | module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444); |
| 85 | MODULE_PARM_DESC(fwpostfix, "Postfix for the firmware files to load."); |
| 86 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 87 | /* The following table supports BCM4301, BCM4303 and BCM4306/2 devices. */ |
| 88 | static const struct ssb_device_id b43legacy_ssb_tbl[] = { |
| 89 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 2), |
| 90 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 4), |
| 91 | SSB_DEVTABLE_END |
| 92 | }; |
| 93 | MODULE_DEVICE_TABLE(ssb, b43legacy_ssb_tbl); |
| 94 | |
| 95 | |
| 96 | /* Channel and ratetables are shared for all devices. |
| 97 | * They can't be const, because ieee80211 puts some precalculated |
| 98 | * data in there. This data is the same for all devices, so we don't |
| 99 | * get concurrency issues */ |
| 100 | #define RATETAB_ENT(_rateid, _flags) \ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 101 | { \ |
| 102 | .bitrate = B43legacy_RATE_TO_100KBPS(_rateid), \ |
| 103 | .hw_value = (_rateid), \ |
| 104 | .flags = (_flags), \ |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 105 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 106 | /* |
| 107 | * NOTE: When changing this, sync with xmit.c's |
| 108 | * b43legacy_plcp_get_bitrate_idx_* functions! |
| 109 | */ |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 110 | static struct ieee80211_rate __b43legacy_ratetable[] = { |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 111 | RATETAB_ENT(B43legacy_CCK_RATE_1MB, 0), |
| 112 | RATETAB_ENT(B43legacy_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE), |
| 113 | RATETAB_ENT(B43legacy_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE), |
| 114 | RATETAB_ENT(B43legacy_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE), |
| 115 | RATETAB_ENT(B43legacy_OFDM_RATE_6MB, 0), |
| 116 | RATETAB_ENT(B43legacy_OFDM_RATE_9MB, 0), |
| 117 | RATETAB_ENT(B43legacy_OFDM_RATE_12MB, 0), |
| 118 | RATETAB_ENT(B43legacy_OFDM_RATE_18MB, 0), |
| 119 | RATETAB_ENT(B43legacy_OFDM_RATE_24MB, 0), |
| 120 | RATETAB_ENT(B43legacy_OFDM_RATE_36MB, 0), |
| 121 | RATETAB_ENT(B43legacy_OFDM_RATE_48MB, 0), |
| 122 | RATETAB_ENT(B43legacy_OFDM_RATE_54MB, 0), |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 123 | }; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 124 | #define b43legacy_b_ratetable (__b43legacy_ratetable + 0) |
| 125 | #define b43legacy_b_ratetable_size 4 |
| 126 | #define b43legacy_g_ratetable (__b43legacy_ratetable + 0) |
| 127 | #define b43legacy_g_ratetable_size 12 |
| 128 | |
| 129 | #define CHANTAB_ENT(_chanid, _freq) \ |
| 130 | { \ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 131 | .center_freq = (_freq), \ |
| 132 | .hw_value = (_chanid), \ |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 133 | } |
| 134 | static struct ieee80211_channel b43legacy_bg_chantable[] = { |
| 135 | CHANTAB_ENT(1, 2412), |
| 136 | CHANTAB_ENT(2, 2417), |
| 137 | CHANTAB_ENT(3, 2422), |
| 138 | CHANTAB_ENT(4, 2427), |
| 139 | CHANTAB_ENT(5, 2432), |
| 140 | CHANTAB_ENT(6, 2437), |
| 141 | CHANTAB_ENT(7, 2442), |
| 142 | CHANTAB_ENT(8, 2447), |
| 143 | CHANTAB_ENT(9, 2452), |
| 144 | CHANTAB_ENT(10, 2457), |
| 145 | CHANTAB_ENT(11, 2462), |
| 146 | CHANTAB_ENT(12, 2467), |
| 147 | CHANTAB_ENT(13, 2472), |
| 148 | CHANTAB_ENT(14, 2484), |
| 149 | }; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 150 | |
| 151 | static struct ieee80211_supported_band b43legacy_band_2GHz_BPHY = { |
| 152 | .channels = b43legacy_bg_chantable, |
| 153 | .n_channels = ARRAY_SIZE(b43legacy_bg_chantable), |
| 154 | .bitrates = b43legacy_b_ratetable, |
| 155 | .n_bitrates = b43legacy_b_ratetable_size, |
| 156 | }; |
| 157 | |
| 158 | static struct ieee80211_supported_band b43legacy_band_2GHz_GPHY = { |
| 159 | .channels = b43legacy_bg_chantable, |
| 160 | .n_channels = ARRAY_SIZE(b43legacy_bg_chantable), |
| 161 | .bitrates = b43legacy_g_ratetable, |
| 162 | .n_bitrates = b43legacy_g_ratetable_size, |
| 163 | }; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 164 | |
| 165 | static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev); |
| 166 | static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev); |
| 167 | static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev); |
| 168 | static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev); |
| 169 | |
| 170 | |
| 171 | static int b43legacy_ratelimit(struct b43legacy_wl *wl) |
| 172 | { |
| 173 | if (!wl || !wl->current_dev) |
| 174 | return 1; |
| 175 | if (b43legacy_status(wl->current_dev) < B43legacy_STAT_STARTED) |
| 176 | return 1; |
| 177 | /* We are up and running. |
| 178 | * Ratelimit the messages to avoid DoS over the net. */ |
| 179 | return net_ratelimit(); |
| 180 | } |
| 181 | |
| 182 | void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...) |
| 183 | { |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 184 | struct va_format vaf; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 185 | va_list args; |
| 186 | |
| 187 | if (!b43legacy_ratelimit(wl)) |
| 188 | return; |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 189 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 190 | va_start(args, fmt); |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 191 | |
| 192 | vaf.fmt = fmt; |
| 193 | vaf.va = &args; |
| 194 | |
| 195 | printk(KERN_INFO "b43legacy-%s: %pV", |
| 196 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf); |
| 197 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 198 | va_end(args); |
| 199 | } |
| 200 | |
| 201 | void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...) |
| 202 | { |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 203 | struct va_format vaf; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 204 | va_list args; |
| 205 | |
| 206 | if (!b43legacy_ratelimit(wl)) |
| 207 | return; |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 208 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 209 | va_start(args, fmt); |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 210 | |
| 211 | vaf.fmt = fmt; |
| 212 | vaf.va = &args; |
| 213 | |
| 214 | printk(KERN_ERR "b43legacy-%s ERROR: %pV", |
| 215 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf); |
| 216 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 217 | va_end(args); |
| 218 | } |
| 219 | |
| 220 | void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...) |
| 221 | { |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 222 | struct va_format vaf; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 223 | va_list args; |
| 224 | |
| 225 | if (!b43legacy_ratelimit(wl)) |
| 226 | return; |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 227 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 228 | va_start(args, fmt); |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 229 | |
| 230 | vaf.fmt = fmt; |
| 231 | vaf.va = &args; |
| 232 | |
| 233 | printk(KERN_WARNING "b43legacy-%s warning: %pV", |
| 234 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf); |
| 235 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 236 | va_end(args); |
| 237 | } |
| 238 | |
| 239 | #if B43legacy_DEBUG |
| 240 | void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...) |
| 241 | { |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 242 | struct va_format vaf; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 243 | va_list args; |
| 244 | |
| 245 | va_start(args, fmt); |
Joe Perches | 0e67d6cb | 2010-11-09 16:35:19 -0800 | [diff] [blame^] | 246 | |
| 247 | vaf.fmt = fmt; |
| 248 | vaf.va = &args; |
| 249 | |
| 250 | printk(KERN_DEBUG "b43legacy-%s debug: %pV", |
| 251 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf); |
| 252 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 253 | va_end(args); |
| 254 | } |
| 255 | #endif /* DEBUG */ |
| 256 | |
| 257 | static void b43legacy_ram_write(struct b43legacy_wldev *dev, u16 offset, |
| 258 | u32 val) |
| 259 | { |
| 260 | u32 status; |
| 261 | |
| 262 | B43legacy_WARN_ON(offset % 4 != 0); |
| 263 | |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 264 | status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 265 | if (status & B43legacy_MACCTL_BE) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 266 | val = swab32(val); |
| 267 | |
| 268 | b43legacy_write32(dev, B43legacy_MMIO_RAM_CONTROL, offset); |
| 269 | mmiowb(); |
| 270 | b43legacy_write32(dev, B43legacy_MMIO_RAM_DATA, val); |
| 271 | } |
| 272 | |
| 273 | static inline |
| 274 | void b43legacy_shm_control_word(struct b43legacy_wldev *dev, |
| 275 | u16 routing, u16 offset) |
| 276 | { |
| 277 | u32 control; |
| 278 | |
| 279 | /* "offset" is the WORD offset. */ |
| 280 | |
| 281 | control = routing; |
| 282 | control <<= 16; |
| 283 | control |= offset; |
| 284 | b43legacy_write32(dev, B43legacy_MMIO_SHM_CONTROL, control); |
| 285 | } |
| 286 | |
| 287 | u32 b43legacy_shm_read32(struct b43legacy_wldev *dev, |
| 288 | u16 routing, u16 offset) |
| 289 | { |
| 290 | u32 ret; |
| 291 | |
| 292 | if (routing == B43legacy_SHM_SHARED) { |
| 293 | B43legacy_WARN_ON((offset & 0x0001) != 0); |
| 294 | if (offset & 0x0003) { |
| 295 | /* Unaligned access */ |
| 296 | b43legacy_shm_control_word(dev, routing, offset >> 2); |
| 297 | ret = b43legacy_read16(dev, |
| 298 | B43legacy_MMIO_SHM_DATA_UNALIGNED); |
| 299 | ret <<= 16; |
| 300 | b43legacy_shm_control_word(dev, routing, |
| 301 | (offset >> 2) + 1); |
| 302 | ret |= b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA); |
| 303 | |
| 304 | return ret; |
| 305 | } |
| 306 | offset >>= 2; |
| 307 | } |
| 308 | b43legacy_shm_control_word(dev, routing, offset); |
| 309 | ret = b43legacy_read32(dev, B43legacy_MMIO_SHM_DATA); |
| 310 | |
| 311 | return ret; |
| 312 | } |
| 313 | |
| 314 | u16 b43legacy_shm_read16(struct b43legacy_wldev *dev, |
| 315 | u16 routing, u16 offset) |
| 316 | { |
| 317 | u16 ret; |
| 318 | |
| 319 | if (routing == B43legacy_SHM_SHARED) { |
| 320 | B43legacy_WARN_ON((offset & 0x0001) != 0); |
| 321 | if (offset & 0x0003) { |
| 322 | /* Unaligned access */ |
| 323 | b43legacy_shm_control_word(dev, routing, offset >> 2); |
| 324 | ret = b43legacy_read16(dev, |
| 325 | B43legacy_MMIO_SHM_DATA_UNALIGNED); |
| 326 | |
| 327 | return ret; |
| 328 | } |
| 329 | offset >>= 2; |
| 330 | } |
| 331 | b43legacy_shm_control_word(dev, routing, offset); |
| 332 | ret = b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA); |
| 333 | |
| 334 | return ret; |
| 335 | } |
| 336 | |
| 337 | void b43legacy_shm_write32(struct b43legacy_wldev *dev, |
| 338 | u16 routing, u16 offset, |
| 339 | u32 value) |
| 340 | { |
| 341 | if (routing == B43legacy_SHM_SHARED) { |
| 342 | B43legacy_WARN_ON((offset & 0x0001) != 0); |
| 343 | if (offset & 0x0003) { |
| 344 | /* Unaligned access */ |
| 345 | b43legacy_shm_control_word(dev, routing, offset >> 2); |
| 346 | mmiowb(); |
| 347 | b43legacy_write16(dev, |
| 348 | B43legacy_MMIO_SHM_DATA_UNALIGNED, |
| 349 | (value >> 16) & 0xffff); |
| 350 | mmiowb(); |
| 351 | b43legacy_shm_control_word(dev, routing, |
| 352 | (offset >> 2) + 1); |
| 353 | mmiowb(); |
| 354 | b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA, |
| 355 | value & 0xffff); |
| 356 | return; |
| 357 | } |
| 358 | offset >>= 2; |
| 359 | } |
| 360 | b43legacy_shm_control_word(dev, routing, offset); |
| 361 | mmiowb(); |
| 362 | b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, value); |
| 363 | } |
| 364 | |
| 365 | void b43legacy_shm_write16(struct b43legacy_wldev *dev, u16 routing, u16 offset, |
| 366 | u16 value) |
| 367 | { |
| 368 | if (routing == B43legacy_SHM_SHARED) { |
| 369 | B43legacy_WARN_ON((offset & 0x0001) != 0); |
| 370 | if (offset & 0x0003) { |
| 371 | /* Unaligned access */ |
| 372 | b43legacy_shm_control_word(dev, routing, offset >> 2); |
| 373 | mmiowb(); |
| 374 | b43legacy_write16(dev, |
| 375 | B43legacy_MMIO_SHM_DATA_UNALIGNED, |
| 376 | value); |
| 377 | return; |
| 378 | } |
| 379 | offset >>= 2; |
| 380 | } |
| 381 | b43legacy_shm_control_word(dev, routing, offset); |
| 382 | mmiowb(); |
| 383 | b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA, value); |
| 384 | } |
| 385 | |
| 386 | /* Read HostFlags */ |
| 387 | u32 b43legacy_hf_read(struct b43legacy_wldev *dev) |
| 388 | { |
| 389 | u32 ret; |
| 390 | |
| 391 | ret = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 392 | B43legacy_SHM_SH_HOSTFHI); |
| 393 | ret <<= 16; |
| 394 | ret |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 395 | B43legacy_SHM_SH_HOSTFLO); |
| 396 | |
| 397 | return ret; |
| 398 | } |
| 399 | |
| 400 | /* Write HostFlags */ |
| 401 | void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value) |
| 402 | { |
| 403 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 404 | B43legacy_SHM_SH_HOSTFLO, |
| 405 | (value & 0x0000FFFF)); |
| 406 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 407 | B43legacy_SHM_SH_HOSTFHI, |
| 408 | ((value & 0xFFFF0000) >> 16)); |
| 409 | } |
| 410 | |
| 411 | void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf) |
| 412 | { |
| 413 | /* We need to be careful. As we read the TSF from multiple |
| 414 | * registers, we should take care of register overflows. |
| 415 | * In theory, the whole tsf read process should be atomic. |
| 416 | * We try to be atomic here, by restaring the read process, |
| 417 | * if any of the high registers changed (overflew). |
| 418 | */ |
| 419 | if (dev->dev->id.revision >= 3) { |
| 420 | u32 low; |
| 421 | u32 high; |
| 422 | u32 high2; |
| 423 | |
| 424 | do { |
| 425 | high = b43legacy_read32(dev, |
| 426 | B43legacy_MMIO_REV3PLUS_TSF_HIGH); |
| 427 | low = b43legacy_read32(dev, |
| 428 | B43legacy_MMIO_REV3PLUS_TSF_LOW); |
| 429 | high2 = b43legacy_read32(dev, |
| 430 | B43legacy_MMIO_REV3PLUS_TSF_HIGH); |
| 431 | } while (unlikely(high != high2)); |
| 432 | |
| 433 | *tsf = high; |
| 434 | *tsf <<= 32; |
| 435 | *tsf |= low; |
| 436 | } else { |
| 437 | u64 tmp; |
| 438 | u16 v0; |
| 439 | u16 v1; |
| 440 | u16 v2; |
| 441 | u16 v3; |
| 442 | u16 test1; |
| 443 | u16 test2; |
| 444 | u16 test3; |
| 445 | |
| 446 | do { |
| 447 | v3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3); |
| 448 | v2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2); |
| 449 | v1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1); |
| 450 | v0 = b43legacy_read16(dev, B43legacy_MMIO_TSF_0); |
| 451 | |
| 452 | test3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3); |
| 453 | test2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2); |
| 454 | test1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1); |
| 455 | } while (v3 != test3 || v2 != test2 || v1 != test1); |
| 456 | |
| 457 | *tsf = v3; |
| 458 | *tsf <<= 48; |
| 459 | tmp = v2; |
| 460 | tmp <<= 32; |
| 461 | *tsf |= tmp; |
| 462 | tmp = v1; |
| 463 | tmp <<= 16; |
| 464 | *tsf |= tmp; |
| 465 | *tsf |= v0; |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | static void b43legacy_time_lock(struct b43legacy_wldev *dev) |
| 470 | { |
| 471 | u32 status; |
| 472 | |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 473 | status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 474 | status |= B43legacy_MACCTL_TBTTHOLD; |
| 475 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 476 | mmiowb(); |
| 477 | } |
| 478 | |
| 479 | static void b43legacy_time_unlock(struct b43legacy_wldev *dev) |
| 480 | { |
| 481 | u32 status; |
| 482 | |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 483 | status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 484 | status &= ~B43legacy_MACCTL_TBTTHOLD; |
| 485 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 486 | } |
| 487 | |
| 488 | static void b43legacy_tsf_write_locked(struct b43legacy_wldev *dev, u64 tsf) |
| 489 | { |
| 490 | /* Be careful with the in-progress timer. |
| 491 | * First zero out the low register, so we have a full |
| 492 | * register-overflow duration to complete the operation. |
| 493 | */ |
| 494 | if (dev->dev->id.revision >= 3) { |
| 495 | u32 lo = (tsf & 0x00000000FFFFFFFFULL); |
| 496 | u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32; |
| 497 | |
| 498 | b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW, 0); |
| 499 | mmiowb(); |
| 500 | b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_HIGH, |
| 501 | hi); |
| 502 | mmiowb(); |
| 503 | b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW, |
| 504 | lo); |
| 505 | } else { |
| 506 | u16 v0 = (tsf & 0x000000000000FFFFULL); |
| 507 | u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16; |
| 508 | u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32; |
| 509 | u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48; |
| 510 | |
| 511 | b43legacy_write16(dev, B43legacy_MMIO_TSF_0, 0); |
| 512 | mmiowb(); |
| 513 | b43legacy_write16(dev, B43legacy_MMIO_TSF_3, v3); |
| 514 | mmiowb(); |
| 515 | b43legacy_write16(dev, B43legacy_MMIO_TSF_2, v2); |
| 516 | mmiowb(); |
| 517 | b43legacy_write16(dev, B43legacy_MMIO_TSF_1, v1); |
| 518 | mmiowb(); |
| 519 | b43legacy_write16(dev, B43legacy_MMIO_TSF_0, v0); |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf) |
| 524 | { |
| 525 | b43legacy_time_lock(dev); |
| 526 | b43legacy_tsf_write_locked(dev, tsf); |
| 527 | b43legacy_time_unlock(dev); |
| 528 | } |
| 529 | |
| 530 | static |
| 531 | void b43legacy_macfilter_set(struct b43legacy_wldev *dev, |
| 532 | u16 offset, const u8 *mac) |
| 533 | { |
| 534 | static const u8 zero_addr[ETH_ALEN] = { 0 }; |
| 535 | u16 data; |
| 536 | |
| 537 | if (!mac) |
| 538 | mac = zero_addr; |
| 539 | |
| 540 | offset |= 0x0020; |
| 541 | b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_CONTROL, offset); |
| 542 | |
| 543 | data = mac[0]; |
| 544 | data |= mac[1] << 8; |
| 545 | b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data); |
| 546 | data = mac[2]; |
| 547 | data |= mac[3] << 8; |
| 548 | b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data); |
| 549 | data = mac[4]; |
| 550 | data |= mac[5] << 8; |
| 551 | b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data); |
| 552 | } |
| 553 | |
| 554 | static void b43legacy_write_mac_bssid_templates(struct b43legacy_wldev *dev) |
| 555 | { |
| 556 | static const u8 zero_addr[ETH_ALEN] = { 0 }; |
| 557 | const u8 *mac = dev->wl->mac_addr; |
| 558 | const u8 *bssid = dev->wl->bssid; |
| 559 | u8 mac_bssid[ETH_ALEN * 2]; |
| 560 | int i; |
| 561 | u32 tmp; |
| 562 | |
| 563 | if (!bssid) |
| 564 | bssid = zero_addr; |
| 565 | if (!mac) |
| 566 | mac = zero_addr; |
| 567 | |
| 568 | b43legacy_macfilter_set(dev, B43legacy_MACFILTER_BSSID, bssid); |
| 569 | |
| 570 | memcpy(mac_bssid, mac, ETH_ALEN); |
| 571 | memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); |
| 572 | |
| 573 | /* Write our MAC address and BSSID to template ram */ |
| 574 | for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) { |
| 575 | tmp = (u32)(mac_bssid[i + 0]); |
| 576 | tmp |= (u32)(mac_bssid[i + 1]) << 8; |
| 577 | tmp |= (u32)(mac_bssid[i + 2]) << 16; |
| 578 | tmp |= (u32)(mac_bssid[i + 3]) << 24; |
| 579 | b43legacy_ram_write(dev, 0x20 + i, tmp); |
| 580 | b43legacy_ram_write(dev, 0x78 + i, tmp); |
| 581 | b43legacy_ram_write(dev, 0x478 + i, tmp); |
| 582 | } |
| 583 | } |
| 584 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 585 | static void b43legacy_upload_card_macaddress(struct b43legacy_wldev *dev) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 586 | { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 587 | b43legacy_write_mac_bssid_templates(dev); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 588 | b43legacy_macfilter_set(dev, B43legacy_MACFILTER_SELF, |
| 589 | dev->wl->mac_addr); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 590 | } |
| 591 | |
| 592 | static void b43legacy_set_slot_time(struct b43legacy_wldev *dev, |
| 593 | u16 slot_time) |
| 594 | { |
| 595 | /* slot_time is in usec. */ |
| 596 | if (dev->phy.type != B43legacy_PHYTYPE_G) |
| 597 | return; |
| 598 | b43legacy_write16(dev, 0x684, 510 + slot_time); |
| 599 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0010, |
| 600 | slot_time); |
| 601 | } |
| 602 | |
| 603 | static void b43legacy_short_slot_timing_enable(struct b43legacy_wldev *dev) |
| 604 | { |
| 605 | b43legacy_set_slot_time(dev, 9); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 606 | } |
| 607 | |
| 608 | static void b43legacy_short_slot_timing_disable(struct b43legacy_wldev *dev) |
| 609 | { |
| 610 | b43legacy_set_slot_time(dev, 20); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 611 | } |
| 612 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 613 | /* Synchronize IRQ top- and bottom-half. |
| 614 | * IRQs must be masked before calling this. |
| 615 | * This must not be called with the irq_lock held. |
| 616 | */ |
| 617 | static void b43legacy_synchronize_irq(struct b43legacy_wldev *dev) |
| 618 | { |
| 619 | synchronize_irq(dev->dev->irq); |
| 620 | tasklet_kill(&dev->isr_tasklet); |
| 621 | } |
| 622 | |
| 623 | /* DummyTransmission function, as documented on |
| 624 | * http://bcm-specs.sipsolutions.net/DummyTransmission |
| 625 | */ |
| 626 | void b43legacy_dummy_transmission(struct b43legacy_wldev *dev) |
| 627 | { |
| 628 | struct b43legacy_phy *phy = &dev->phy; |
| 629 | unsigned int i; |
| 630 | unsigned int max_loop; |
| 631 | u16 value; |
| 632 | u32 buffer[5] = { |
| 633 | 0x00000000, |
| 634 | 0x00D40000, |
| 635 | 0x00000000, |
| 636 | 0x01000000, |
| 637 | 0x00000000, |
| 638 | }; |
| 639 | |
| 640 | switch (phy->type) { |
| 641 | case B43legacy_PHYTYPE_B: |
| 642 | case B43legacy_PHYTYPE_G: |
| 643 | max_loop = 0xFA; |
| 644 | buffer[0] = 0x000B846E; |
| 645 | break; |
| 646 | default: |
| 647 | B43legacy_BUG_ON(1); |
| 648 | return; |
| 649 | } |
| 650 | |
| 651 | for (i = 0; i < 5; i++) |
| 652 | b43legacy_ram_write(dev, i * 4, buffer[i]); |
| 653 | |
| 654 | /* dummy read follows */ |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 655 | b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 656 | |
| 657 | b43legacy_write16(dev, 0x0568, 0x0000); |
| 658 | b43legacy_write16(dev, 0x07C0, 0x0000); |
| 659 | b43legacy_write16(dev, 0x050C, 0x0000); |
| 660 | b43legacy_write16(dev, 0x0508, 0x0000); |
| 661 | b43legacy_write16(dev, 0x050A, 0x0000); |
| 662 | b43legacy_write16(dev, 0x054C, 0x0000); |
| 663 | b43legacy_write16(dev, 0x056A, 0x0014); |
| 664 | b43legacy_write16(dev, 0x0568, 0x0826); |
| 665 | b43legacy_write16(dev, 0x0500, 0x0000); |
| 666 | b43legacy_write16(dev, 0x0502, 0x0030); |
| 667 | |
| 668 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) |
| 669 | b43legacy_radio_write16(dev, 0x0051, 0x0017); |
| 670 | for (i = 0x00; i < max_loop; i++) { |
| 671 | value = b43legacy_read16(dev, 0x050E); |
| 672 | if (value & 0x0080) |
| 673 | break; |
| 674 | udelay(10); |
| 675 | } |
| 676 | for (i = 0x00; i < 0x0A; i++) { |
| 677 | value = b43legacy_read16(dev, 0x050E); |
| 678 | if (value & 0x0400) |
| 679 | break; |
| 680 | udelay(10); |
| 681 | } |
| 682 | for (i = 0x00; i < 0x0A; i++) { |
| 683 | value = b43legacy_read16(dev, 0x0690); |
| 684 | if (!(value & 0x0100)) |
| 685 | break; |
| 686 | udelay(10); |
| 687 | } |
| 688 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) |
| 689 | b43legacy_radio_write16(dev, 0x0051, 0x0037); |
| 690 | } |
| 691 | |
| 692 | /* Turn the Analog ON/OFF */ |
| 693 | static void b43legacy_switch_analog(struct b43legacy_wldev *dev, int on) |
| 694 | { |
| 695 | b43legacy_write16(dev, B43legacy_MMIO_PHY0, on ? 0 : 0xF4); |
| 696 | } |
| 697 | |
| 698 | void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags) |
| 699 | { |
| 700 | u32 tmslow; |
| 701 | u32 macctl; |
| 702 | |
| 703 | flags |= B43legacy_TMSLOW_PHYCLKEN; |
| 704 | flags |= B43legacy_TMSLOW_PHYRESET; |
| 705 | ssb_device_enable(dev->dev, flags); |
| 706 | msleep(2); /* Wait for the PLL to turn on. */ |
| 707 | |
| 708 | /* Now take the PHY out of Reset again */ |
| 709 | tmslow = ssb_read32(dev->dev, SSB_TMSLOW); |
| 710 | tmslow |= SSB_TMSLOW_FGC; |
| 711 | tmslow &= ~B43legacy_TMSLOW_PHYRESET; |
| 712 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); |
| 713 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ |
| 714 | msleep(1); |
| 715 | tmslow &= ~SSB_TMSLOW_FGC; |
| 716 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); |
| 717 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ |
| 718 | msleep(1); |
| 719 | |
| 720 | /* Turn Analog ON */ |
| 721 | b43legacy_switch_analog(dev, 1); |
| 722 | |
| 723 | macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 724 | macctl &= ~B43legacy_MACCTL_GMODE; |
| 725 | if (flags & B43legacy_TMSLOW_GMODE) { |
| 726 | macctl |= B43legacy_MACCTL_GMODE; |
| 727 | dev->phy.gmode = 1; |
| 728 | } else |
| 729 | dev->phy.gmode = 0; |
| 730 | macctl |= B43legacy_MACCTL_IHR_ENABLED; |
| 731 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl); |
| 732 | } |
| 733 | |
| 734 | static void handle_irq_transmit_status(struct b43legacy_wldev *dev) |
| 735 | { |
| 736 | u32 v0; |
| 737 | u32 v1; |
| 738 | u16 tmp; |
| 739 | struct b43legacy_txstatus stat; |
| 740 | |
| 741 | while (1) { |
| 742 | v0 = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0); |
| 743 | if (!(v0 & 0x00000001)) |
| 744 | break; |
| 745 | v1 = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_1); |
| 746 | |
| 747 | stat.cookie = (v0 >> 16); |
| 748 | stat.seq = (v1 & 0x0000FFFF); |
| 749 | stat.phy_stat = ((v1 & 0x00FF0000) >> 16); |
| 750 | tmp = (v0 & 0x0000FFFF); |
| 751 | stat.frame_count = ((tmp & 0xF000) >> 12); |
| 752 | stat.rts_count = ((tmp & 0x0F00) >> 8); |
| 753 | stat.supp_reason = ((tmp & 0x001C) >> 2); |
| 754 | stat.pm_indicated = !!(tmp & 0x0080); |
| 755 | stat.intermediate = !!(tmp & 0x0040); |
| 756 | stat.for_ampdu = !!(tmp & 0x0020); |
| 757 | stat.acked = !!(tmp & 0x0002); |
| 758 | |
| 759 | b43legacy_handle_txstatus(dev, &stat); |
| 760 | } |
| 761 | } |
| 762 | |
| 763 | static void drain_txstatus_queue(struct b43legacy_wldev *dev) |
| 764 | { |
| 765 | u32 dummy; |
| 766 | |
| 767 | if (dev->dev->id.revision < 5) |
| 768 | return; |
| 769 | /* Read all entries from the microcode TXstatus FIFO |
| 770 | * and throw them away. |
| 771 | */ |
| 772 | while (1) { |
| 773 | dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0); |
| 774 | if (!(dummy & 0x00000001)) |
| 775 | break; |
| 776 | dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_1); |
| 777 | } |
| 778 | } |
| 779 | |
| 780 | static u32 b43legacy_jssi_read(struct b43legacy_wldev *dev) |
| 781 | { |
| 782 | u32 val = 0; |
| 783 | |
| 784 | val = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x40A); |
| 785 | val <<= 16; |
| 786 | val |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x408); |
| 787 | |
| 788 | return val; |
| 789 | } |
| 790 | |
| 791 | static void b43legacy_jssi_write(struct b43legacy_wldev *dev, u32 jssi) |
| 792 | { |
| 793 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x408, |
| 794 | (jssi & 0x0000FFFF)); |
| 795 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x40A, |
| 796 | (jssi & 0xFFFF0000) >> 16); |
| 797 | } |
| 798 | |
| 799 | static void b43legacy_generate_noise_sample(struct b43legacy_wldev *dev) |
| 800 | { |
| 801 | b43legacy_jssi_write(dev, 0x7F7F7F7F); |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 802 | b43legacy_write32(dev, B43legacy_MMIO_MACCMD, |
Stefano Brivio | eed0fd2 | 2008-02-08 06:31:10 +0100 | [diff] [blame] | 803 | b43legacy_read32(dev, B43legacy_MMIO_MACCMD) |
| 804 | | B43legacy_MACCMD_BGNOISE); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 805 | B43legacy_WARN_ON(dev->noisecalc.channel_at_start != |
| 806 | dev->phy.channel); |
| 807 | } |
| 808 | |
| 809 | static void b43legacy_calculate_link_quality(struct b43legacy_wldev *dev) |
| 810 | { |
| 811 | /* Top half of Link Quality calculation. */ |
| 812 | |
| 813 | if (dev->noisecalc.calculation_running) |
| 814 | return; |
| 815 | dev->noisecalc.channel_at_start = dev->phy.channel; |
| 816 | dev->noisecalc.calculation_running = 1; |
| 817 | dev->noisecalc.nr_samples = 0; |
| 818 | |
| 819 | b43legacy_generate_noise_sample(dev); |
| 820 | } |
| 821 | |
| 822 | static void handle_irq_noise(struct b43legacy_wldev *dev) |
| 823 | { |
| 824 | struct b43legacy_phy *phy = &dev->phy; |
| 825 | u16 tmp; |
| 826 | u8 noise[4]; |
| 827 | u8 i; |
| 828 | u8 j; |
| 829 | s32 average; |
| 830 | |
| 831 | /* Bottom half of Link Quality calculation. */ |
| 832 | |
| 833 | B43legacy_WARN_ON(!dev->noisecalc.calculation_running); |
| 834 | if (dev->noisecalc.channel_at_start != phy->channel) |
| 835 | goto drop_calculation; |
| 836 | *((__le32 *)noise) = cpu_to_le32(b43legacy_jssi_read(dev)); |
| 837 | if (noise[0] == 0x7F || noise[1] == 0x7F || |
| 838 | noise[2] == 0x7F || noise[3] == 0x7F) |
| 839 | goto generate_new; |
| 840 | |
| 841 | /* Get the noise samples. */ |
| 842 | B43legacy_WARN_ON(dev->noisecalc.nr_samples >= 8); |
| 843 | i = dev->noisecalc.nr_samples; |
Harvey Harrison | ca21614 | 2008-05-02 13:47:49 -0700 | [diff] [blame] | 844 | noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
| 845 | noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
| 846 | noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
| 847 | noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 848 | dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]]; |
| 849 | dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]]; |
| 850 | dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]]; |
| 851 | dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]]; |
| 852 | dev->noisecalc.nr_samples++; |
| 853 | if (dev->noisecalc.nr_samples == 8) { |
| 854 | /* Calculate the Link Quality by the noise samples. */ |
| 855 | average = 0; |
| 856 | for (i = 0; i < 8; i++) { |
| 857 | for (j = 0; j < 4; j++) |
| 858 | average += dev->noisecalc.samples[i][j]; |
| 859 | } |
| 860 | average /= (8 * 4); |
| 861 | average *= 125; |
| 862 | average += 64; |
| 863 | average /= 128; |
| 864 | tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 865 | 0x40C); |
| 866 | tmp = (tmp / 128) & 0x1F; |
| 867 | if (tmp >= 8) |
| 868 | average += 2; |
| 869 | else |
| 870 | average -= 25; |
| 871 | if (tmp == 8) |
| 872 | average -= 72; |
| 873 | else |
| 874 | average -= 48; |
| 875 | |
| 876 | dev->stats.link_noise = average; |
| 877 | drop_calculation: |
| 878 | dev->noisecalc.calculation_running = 0; |
| 879 | return; |
| 880 | } |
| 881 | generate_new: |
| 882 | b43legacy_generate_noise_sample(dev); |
| 883 | } |
| 884 | |
| 885 | static void handle_irq_tbtt_indication(struct b43legacy_wldev *dev) |
| 886 | { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 887 | if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP)) { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 888 | /* TODO: PS TBTT */ |
| 889 | } else { |
| 890 | if (1/*FIXME: the last PSpoll frame was sent successfully */) |
| 891 | b43legacy_power_saving_ctl_bits(dev, -1, -1); |
| 892 | } |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 893 | if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) |
Stefano Brivio | eed0fd2 | 2008-02-08 06:31:10 +0100 | [diff] [blame] | 894 | dev->dfq_valid = 1; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 895 | } |
| 896 | |
| 897 | static void handle_irq_atim_end(struct b43legacy_wldev *dev) |
| 898 | { |
Stefano Brivio | eed0fd2 | 2008-02-08 06:31:10 +0100 | [diff] [blame] | 899 | if (dev->dfq_valid) { |
| 900 | b43legacy_write32(dev, B43legacy_MMIO_MACCMD, |
| 901 | b43legacy_read32(dev, B43legacy_MMIO_MACCMD) |
| 902 | | B43legacy_MACCMD_DFQ_VALID); |
| 903 | dev->dfq_valid = 0; |
| 904 | } |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 905 | } |
| 906 | |
| 907 | static void handle_irq_pmq(struct b43legacy_wldev *dev) |
| 908 | { |
| 909 | u32 tmp; |
| 910 | |
| 911 | /* TODO: AP mode. */ |
| 912 | |
| 913 | while (1) { |
| 914 | tmp = b43legacy_read32(dev, B43legacy_MMIO_PS_STATUS); |
| 915 | if (!(tmp & 0x00000008)) |
| 916 | break; |
| 917 | } |
| 918 | /* 16bit write is odd, but correct. */ |
| 919 | b43legacy_write16(dev, B43legacy_MMIO_PS_STATUS, 0x0002); |
| 920 | } |
| 921 | |
| 922 | static void b43legacy_write_template_common(struct b43legacy_wldev *dev, |
| 923 | const u8 *data, u16 size, |
| 924 | u16 ram_offset, |
| 925 | u16 shm_size_offset, u8 rate) |
| 926 | { |
| 927 | u32 i; |
| 928 | u32 tmp; |
| 929 | struct b43legacy_plcp_hdr4 plcp; |
| 930 | |
| 931 | plcp.data = 0; |
| 932 | b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); |
| 933 | b43legacy_ram_write(dev, ram_offset, le32_to_cpu(plcp.data)); |
| 934 | ram_offset += sizeof(u32); |
| 935 | /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet. |
| 936 | * So leave the first two bytes of the next write blank. |
| 937 | */ |
| 938 | tmp = (u32)(data[0]) << 16; |
| 939 | tmp |= (u32)(data[1]) << 24; |
| 940 | b43legacy_ram_write(dev, ram_offset, tmp); |
| 941 | ram_offset += sizeof(u32); |
| 942 | for (i = 2; i < size; i += sizeof(u32)) { |
| 943 | tmp = (u32)(data[i + 0]); |
| 944 | if (i + 1 < size) |
| 945 | tmp |= (u32)(data[i + 1]) << 8; |
| 946 | if (i + 2 < size) |
| 947 | tmp |= (u32)(data[i + 2]) << 16; |
| 948 | if (i + 3 < size) |
| 949 | tmp |= (u32)(data[i + 3]) << 24; |
| 950 | b43legacy_ram_write(dev, ram_offset + i - 2, tmp); |
| 951 | } |
| 952 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_size_offset, |
| 953 | size + sizeof(struct b43legacy_plcp_hdr6)); |
| 954 | } |
| 955 | |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 956 | /* Convert a b43legacy antenna number value to the PHY TX control value. */ |
| 957 | static u16 b43legacy_antenna_to_phyctl(int antenna) |
| 958 | { |
| 959 | switch (antenna) { |
| 960 | case B43legacy_ANTENNA0: |
| 961 | return B43legacy_TX4_PHY_ANT0; |
| 962 | case B43legacy_ANTENNA1: |
| 963 | return B43legacy_TX4_PHY_ANT1; |
| 964 | } |
| 965 | return B43legacy_TX4_PHY_ANTLAST; |
| 966 | } |
| 967 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 968 | static void b43legacy_write_beacon_template(struct b43legacy_wldev *dev, |
| 969 | u16 ram_offset, |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 970 | u16 shm_size_offset) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 971 | { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 972 | |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 973 | unsigned int i, len, variable_len; |
| 974 | const struct ieee80211_mgmt *bcn; |
| 975 | const u8 *ie; |
| 976 | bool tim_found = 0; |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 977 | unsigned int rate; |
| 978 | u16 ctl; |
| 979 | int antenna; |
| 980 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon); |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 981 | |
| 982 | bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data); |
| 983 | len = min((size_t)dev->wl->current_beacon->len, |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 984 | 0x200 - sizeof(struct b43legacy_plcp_hdr6)); |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 985 | rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value; |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 986 | |
| 987 | b43legacy_write_template_common(dev, (const u8 *)bcn, len, ram_offset, |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 988 | shm_size_offset, rate); |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 989 | |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 990 | /* Write the PHY TX control parameters. */ |
| 991 | antenna = B43legacy_ANTENNA_DEFAULT; |
| 992 | antenna = b43legacy_antenna_to_phyctl(antenna); |
| 993 | ctl = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 994 | B43legacy_SHM_SH_BEACPHYCTL); |
| 995 | /* We can't send beacons with short preamble. Would get PHY errors. */ |
| 996 | ctl &= ~B43legacy_TX4_PHY_SHORTPRMBL; |
| 997 | ctl &= ~B43legacy_TX4_PHY_ANT; |
| 998 | ctl &= ~B43legacy_TX4_PHY_ENC; |
| 999 | ctl |= antenna; |
| 1000 | ctl |= B43legacy_TX4_PHY_ENC_CCK; |
| 1001 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 1002 | B43legacy_SHM_SH_BEACPHYCTL, ctl); |
| 1003 | |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1004 | /* Find the position of the TIM and the DTIM_period value |
| 1005 | * and write them to SHM. */ |
| 1006 | ie = bcn->u.beacon.variable; |
| 1007 | variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable); |
| 1008 | for (i = 0; i < variable_len - 2; ) { |
| 1009 | uint8_t ie_id, ie_len; |
| 1010 | |
| 1011 | ie_id = ie[i]; |
| 1012 | ie_len = ie[i + 1]; |
| 1013 | if (ie_id == 5) { |
| 1014 | u16 tim_position; |
| 1015 | u16 dtim_period; |
| 1016 | /* This is the TIM Information Element */ |
| 1017 | |
| 1018 | /* Check whether the ie_len is in the beacon data range. */ |
| 1019 | if (variable_len < ie_len + 2 + i) |
| 1020 | break; |
| 1021 | /* A valid TIM is at least 4 bytes long. */ |
| 1022 | if (ie_len < 4) |
| 1023 | break; |
| 1024 | tim_found = 1; |
| 1025 | |
| 1026 | tim_position = sizeof(struct b43legacy_plcp_hdr6); |
| 1027 | tim_position += offsetof(struct ieee80211_mgmt, |
| 1028 | u.beacon.variable); |
| 1029 | tim_position += i; |
| 1030 | |
| 1031 | dtim_period = ie[i + 3]; |
| 1032 | |
| 1033 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 1034 | B43legacy_SHM_SH_TIMPOS, tim_position); |
| 1035 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 1036 | B43legacy_SHM_SH_DTIMP, dtim_period); |
| 1037 | break; |
| 1038 | } |
| 1039 | i += ie_len + 2; |
| 1040 | } |
| 1041 | if (!tim_found) { |
| 1042 | b43legacywarn(dev->wl, "Did not find a valid TIM IE in the " |
| 1043 | "beacon template packet. AP or IBSS operation " |
| 1044 | "may be broken.\n"); |
Larry Finger | 7858e07 | 2009-04-11 11:25:24 -0500 | [diff] [blame] | 1045 | } else |
| 1046 | b43legacydbg(dev->wl, "Updated beacon template\n"); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1047 | } |
| 1048 | |
| 1049 | static void b43legacy_write_probe_resp_plcp(struct b43legacy_wldev *dev, |
| 1050 | u16 shm_offset, u16 size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1051 | struct ieee80211_rate *rate) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1052 | { |
| 1053 | struct b43legacy_plcp_hdr4 plcp; |
| 1054 | u32 tmp; |
| 1055 | __le16 dur; |
| 1056 | |
| 1057 | plcp.data = 0; |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 1058 | b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1059 | dur = ieee80211_generic_frame_duration(dev->wl->hw, |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1060 | dev->wl->vif, |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1061 | size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1062 | rate); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1063 | /* Write PLCP in two parts and timing for packet transfer */ |
| 1064 | tmp = le32_to_cpu(plcp.data); |
| 1065 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset, |
| 1066 | tmp & 0xFFFF); |
| 1067 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 2, |
| 1068 | tmp >> 16); |
| 1069 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 6, |
| 1070 | le16_to_cpu(dur)); |
| 1071 | } |
| 1072 | |
| 1073 | /* Instead of using custom probe response template, this function |
| 1074 | * just patches custom beacon template by: |
| 1075 | * 1) Changing packet type |
| 1076 | * 2) Patching duration field |
| 1077 | * 3) Stripping TIM |
| 1078 | */ |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1079 | static const u8 *b43legacy_generate_probe_resp(struct b43legacy_wldev *dev, |
| 1080 | u16 *dest_size, |
| 1081 | struct ieee80211_rate *rate) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1082 | { |
| 1083 | const u8 *src_data; |
| 1084 | u8 *dest_data; |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1085 | u16 src_size, elem_size, src_pos, dest_pos; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1086 | __le16 dur; |
| 1087 | struct ieee80211_hdr *hdr; |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1088 | size_t ie_start; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1089 | |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1090 | src_size = dev->wl->current_beacon->len; |
| 1091 | src_data = (const u8 *)dev->wl->current_beacon->data; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1092 | |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1093 | /* Get the start offset of the variable IEs in the packet. */ |
| 1094 | ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); |
| 1095 | B43legacy_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt, |
| 1096 | u.beacon.variable)); |
| 1097 | |
Stefano Brivio | 4688be3 | 2008-02-08 06:31:39 +0100 | [diff] [blame] | 1098 | if (B43legacy_WARN_ON(src_size < ie_start)) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1099 | return NULL; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1100 | |
| 1101 | dest_data = kmalloc(src_size, GFP_ATOMIC); |
| 1102 | if (unlikely(!dest_data)) |
| 1103 | return NULL; |
| 1104 | |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1105 | /* Copy the static data and all Information Elements, except the TIM. */ |
| 1106 | memcpy(dest_data, src_data, ie_start); |
| 1107 | src_pos = ie_start; |
| 1108 | dest_pos = ie_start; |
| 1109 | for ( ; src_pos < src_size - 2; src_pos += elem_size) { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1110 | elem_size = src_data[src_pos + 1] + 2; |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1111 | if (src_data[src_pos] == 5) { |
| 1112 | /* This is the TIM. */ |
| 1113 | continue; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1114 | } |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1115 | memcpy(dest_data + dest_pos, src_data + src_pos, elem_size); |
| 1116 | dest_pos += elem_size; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1117 | } |
| 1118 | *dest_size = dest_pos; |
| 1119 | hdr = (struct ieee80211_hdr *)dest_data; |
| 1120 | |
| 1121 | /* Set the frame control. */ |
| 1122 | hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
| 1123 | IEEE80211_STYPE_PROBE_RESP); |
| 1124 | dur = ieee80211_generic_frame_duration(dev->wl->hw, |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1125 | dev->wl->vif, |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1126 | *dest_size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1127 | rate); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1128 | hdr->duration_id = dur; |
| 1129 | |
| 1130 | return dest_data; |
| 1131 | } |
| 1132 | |
| 1133 | static void b43legacy_write_probe_resp_template(struct b43legacy_wldev *dev, |
| 1134 | u16 ram_offset, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1135 | u16 shm_size_offset, |
| 1136 | struct ieee80211_rate *rate) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1137 | { |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1138 | const u8 *probe_resp_data; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1139 | u16 size; |
| 1140 | |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1141 | size = dev->wl->current_beacon->len; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1142 | probe_resp_data = b43legacy_generate_probe_resp(dev, &size, rate); |
| 1143 | if (unlikely(!probe_resp_data)) |
| 1144 | return; |
| 1145 | |
| 1146 | /* Looks like PLCP headers plus packet timings are stored for |
| 1147 | * all possible basic rates |
| 1148 | */ |
| 1149 | b43legacy_write_probe_resp_plcp(dev, 0x31A, size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1150 | &b43legacy_b_ratetable[0]); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1151 | b43legacy_write_probe_resp_plcp(dev, 0x32C, size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1152 | &b43legacy_b_ratetable[1]); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1153 | b43legacy_write_probe_resp_plcp(dev, 0x33E, size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1154 | &b43legacy_b_ratetable[2]); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1155 | b43legacy_write_probe_resp_plcp(dev, 0x350, size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1156 | &b43legacy_b_ratetable[3]); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1157 | |
| 1158 | size = min((size_t)size, |
| 1159 | 0x200 - sizeof(struct b43legacy_plcp_hdr6)); |
| 1160 | b43legacy_write_template_common(dev, probe_resp_data, |
| 1161 | size, ram_offset, |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 1162 | shm_size_offset, rate->hw_value); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1163 | kfree(probe_resp_data); |
| 1164 | } |
| 1165 | |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 1166 | static void b43legacy_upload_beacon0(struct b43legacy_wldev *dev) |
| 1167 | { |
| 1168 | struct b43legacy_wl *wl = dev->wl; |
| 1169 | |
| 1170 | if (wl->beacon0_uploaded) |
| 1171 | return; |
| 1172 | b43legacy_write_beacon_template(dev, 0x68, 0x18); |
| 1173 | /* FIXME: Probe resp upload doesn't really belong here, |
| 1174 | * but we don't use that feature anyway. */ |
| 1175 | b43legacy_write_probe_resp_template(dev, 0x268, 0x4A, |
| 1176 | &__b43legacy_ratetable[3]); |
| 1177 | wl->beacon0_uploaded = 1; |
| 1178 | } |
| 1179 | |
| 1180 | static void b43legacy_upload_beacon1(struct b43legacy_wldev *dev) |
| 1181 | { |
| 1182 | struct b43legacy_wl *wl = dev->wl; |
| 1183 | |
| 1184 | if (wl->beacon1_uploaded) |
| 1185 | return; |
| 1186 | b43legacy_write_beacon_template(dev, 0x468, 0x1A); |
| 1187 | wl->beacon1_uploaded = 1; |
| 1188 | } |
| 1189 | |
| 1190 | static void handle_irq_beacon(struct b43legacy_wldev *dev) |
| 1191 | { |
| 1192 | struct b43legacy_wl *wl = dev->wl; |
| 1193 | u32 cmd, beacon0_valid, beacon1_valid; |
| 1194 | |
| 1195 | if (!b43legacy_is_mode(wl, NL80211_IFTYPE_AP)) |
| 1196 | return; |
| 1197 | |
| 1198 | /* This is the bottom half of the asynchronous beacon update. */ |
| 1199 | |
| 1200 | /* Ignore interrupt in the future. */ |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1201 | dev->irq_mask &= ~B43legacy_IRQ_BEACON; |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 1202 | |
| 1203 | cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD); |
| 1204 | beacon0_valid = (cmd & B43legacy_MACCMD_BEACON0_VALID); |
| 1205 | beacon1_valid = (cmd & B43legacy_MACCMD_BEACON1_VALID); |
| 1206 | |
| 1207 | /* Schedule interrupt manually, if busy. */ |
| 1208 | if (beacon0_valid && beacon1_valid) { |
| 1209 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, B43legacy_IRQ_BEACON); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1210 | dev->irq_mask |= B43legacy_IRQ_BEACON; |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 1211 | return; |
| 1212 | } |
| 1213 | |
| 1214 | if (unlikely(wl->beacon_templates_virgin)) { |
| 1215 | /* We never uploaded a beacon before. |
| 1216 | * Upload both templates now, but only mark one valid. */ |
| 1217 | wl->beacon_templates_virgin = 0; |
| 1218 | b43legacy_upload_beacon0(dev); |
| 1219 | b43legacy_upload_beacon1(dev); |
| 1220 | cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD); |
| 1221 | cmd |= B43legacy_MACCMD_BEACON0_VALID; |
| 1222 | b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd); |
| 1223 | } else { |
| 1224 | if (!beacon0_valid) { |
| 1225 | b43legacy_upload_beacon0(dev); |
| 1226 | cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD); |
| 1227 | cmd |= B43legacy_MACCMD_BEACON0_VALID; |
| 1228 | b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd); |
| 1229 | } else if (!beacon1_valid) { |
| 1230 | b43legacy_upload_beacon1(dev); |
| 1231 | cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD); |
| 1232 | cmd |= B43legacy_MACCMD_BEACON1_VALID; |
| 1233 | b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd); |
| 1234 | } |
| 1235 | } |
| 1236 | } |
| 1237 | |
Larry Finger | 7858e07 | 2009-04-11 11:25:24 -0500 | [diff] [blame] | 1238 | static void b43legacy_beacon_update_trigger_work(struct work_struct *work) |
| 1239 | { |
| 1240 | struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl, |
| 1241 | beacon_update_trigger); |
| 1242 | struct b43legacy_wldev *dev; |
| 1243 | |
| 1244 | mutex_lock(&wl->mutex); |
| 1245 | dev = wl->current_dev; |
| 1246 | if (likely(dev && (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED))) { |
Larry Finger | 7858e07 | 2009-04-11 11:25:24 -0500 | [diff] [blame] | 1247 | spin_lock_irq(&wl->irq_lock); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1248 | /* Update beacon right away or defer to IRQ. */ |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 1249 | handle_irq_beacon(dev); |
| 1250 | /* The handler might have updated the IRQ mask. */ |
| 1251 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1252 | dev->irq_mask); |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 1253 | mmiowb(); |
Larry Finger | 7858e07 | 2009-04-11 11:25:24 -0500 | [diff] [blame] | 1254 | spin_unlock_irq(&wl->irq_lock); |
| 1255 | } |
| 1256 | mutex_unlock(&wl->mutex); |
| 1257 | } |
| 1258 | |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1259 | /* Asynchronously update the packet templates in template RAM. |
| 1260 | * Locking: Requires wl->irq_lock to be locked. */ |
Johannes Berg | 9d139c8 | 2008-07-09 14:40:37 +0200 | [diff] [blame] | 1261 | static void b43legacy_update_templates(struct b43legacy_wl *wl) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1262 | { |
Johannes Berg | 9d139c8 | 2008-07-09 14:40:37 +0200 | [diff] [blame] | 1263 | struct sk_buff *beacon; |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1264 | /* This is the top half of the ansynchronous beacon update. The bottom |
| 1265 | * half is the beacon IRQ. Beacon update must be asynchronous to avoid |
| 1266 | * sending an invalid beacon. This can happen for example, if the |
| 1267 | * firmware transmits a beacon while we are updating it. */ |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1268 | |
Johannes Berg | 9d139c8 | 2008-07-09 14:40:37 +0200 | [diff] [blame] | 1269 | /* We could modify the existing beacon and set the aid bit in the TIM |
| 1270 | * field, but that would probably require resizing and moving of data |
| 1271 | * within the beacon template. Simply request a new beacon and let |
| 1272 | * mac80211 do the hard work. */ |
| 1273 | beacon = ieee80211_beacon_get(wl->hw, wl->vif); |
| 1274 | if (unlikely(!beacon)) |
| 1275 | return; |
| 1276 | |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 1277 | if (wl->current_beacon) |
| 1278 | dev_kfree_skb_any(wl->current_beacon); |
| 1279 | wl->current_beacon = beacon; |
| 1280 | wl->beacon0_uploaded = 0; |
| 1281 | wl->beacon1_uploaded = 0; |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1282 | ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1283 | } |
| 1284 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1285 | static void b43legacy_set_beacon_int(struct b43legacy_wldev *dev, |
| 1286 | u16 beacon_int) |
| 1287 | { |
| 1288 | b43legacy_time_lock(dev); |
Larry Finger | 7858e07 | 2009-04-11 11:25:24 -0500 | [diff] [blame] | 1289 | if (dev->dev->id.revision >= 3) { |
| 1290 | b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_REP, |
| 1291 | (beacon_int << 16)); |
| 1292 | b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_START, |
| 1293 | (beacon_int << 10)); |
| 1294 | } else { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1295 | b43legacy_write16(dev, 0x606, (beacon_int >> 6)); |
| 1296 | b43legacy_write16(dev, 0x610, beacon_int); |
| 1297 | } |
| 1298 | b43legacy_time_unlock(dev); |
Larry Finger | 7858e07 | 2009-04-11 11:25:24 -0500 | [diff] [blame] | 1299 | b43legacydbg(dev->wl, "Set beacon interval to %u\n", beacon_int); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1300 | } |
| 1301 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1302 | static void handle_irq_ucode_debug(struct b43legacy_wldev *dev) |
| 1303 | { |
| 1304 | } |
| 1305 | |
| 1306 | /* Interrupt handler bottom-half */ |
| 1307 | static void b43legacy_interrupt_tasklet(struct b43legacy_wldev *dev) |
| 1308 | { |
| 1309 | u32 reason; |
| 1310 | u32 dma_reason[ARRAY_SIZE(dev->dma_reason)]; |
| 1311 | u32 merged_dma_reason = 0; |
| 1312 | int i; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1313 | unsigned long flags; |
| 1314 | |
| 1315 | spin_lock_irqsave(&dev->wl->irq_lock, flags); |
| 1316 | |
| 1317 | B43legacy_WARN_ON(b43legacy_status(dev) < |
| 1318 | B43legacy_STAT_INITIALIZED); |
| 1319 | |
| 1320 | reason = dev->irq_reason; |
| 1321 | for (i = 0; i < ARRAY_SIZE(dma_reason); i++) { |
| 1322 | dma_reason[i] = dev->dma_reason[i]; |
| 1323 | merged_dma_reason |= dma_reason[i]; |
| 1324 | } |
| 1325 | |
| 1326 | if (unlikely(reason & B43legacy_IRQ_MAC_TXERR)) |
| 1327 | b43legacyerr(dev->wl, "MAC transmission error\n"); |
| 1328 | |
Stefano Brivio | a293ee9 | 2007-11-24 23:35:25 +0100 | [diff] [blame] | 1329 | if (unlikely(reason & B43legacy_IRQ_PHY_TXERR)) { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1330 | b43legacyerr(dev->wl, "PHY transmission error\n"); |
Stefano Brivio | a293ee9 | 2007-11-24 23:35:25 +0100 | [diff] [blame] | 1331 | rmb(); |
| 1332 | if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) { |
| 1333 | b43legacyerr(dev->wl, "Too many PHY TX errors, " |
| 1334 | "restarting the controller\n"); |
| 1335 | b43legacy_controller_restart(dev, "PHY TX errors"); |
| 1336 | } |
| 1337 | } |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1338 | |
| 1339 | if (unlikely(merged_dma_reason & (B43legacy_DMAIRQ_FATALMASK | |
| 1340 | B43legacy_DMAIRQ_NONFATALMASK))) { |
| 1341 | if (merged_dma_reason & B43legacy_DMAIRQ_FATALMASK) { |
| 1342 | b43legacyerr(dev->wl, "Fatal DMA error: " |
| 1343 | "0x%08X, 0x%08X, 0x%08X, " |
| 1344 | "0x%08X, 0x%08X, 0x%08X\n", |
| 1345 | dma_reason[0], dma_reason[1], |
| 1346 | dma_reason[2], dma_reason[3], |
| 1347 | dma_reason[4], dma_reason[5]); |
| 1348 | b43legacy_controller_restart(dev, "DMA error"); |
| 1349 | mmiowb(); |
| 1350 | spin_unlock_irqrestore(&dev->wl->irq_lock, flags); |
| 1351 | return; |
| 1352 | } |
| 1353 | if (merged_dma_reason & B43legacy_DMAIRQ_NONFATALMASK) |
| 1354 | b43legacyerr(dev->wl, "DMA error: " |
| 1355 | "0x%08X, 0x%08X, 0x%08X, " |
| 1356 | "0x%08X, 0x%08X, 0x%08X\n", |
| 1357 | dma_reason[0], dma_reason[1], |
| 1358 | dma_reason[2], dma_reason[3], |
| 1359 | dma_reason[4], dma_reason[5]); |
| 1360 | } |
| 1361 | |
| 1362 | if (unlikely(reason & B43legacy_IRQ_UCODE_DEBUG)) |
| 1363 | handle_irq_ucode_debug(dev); |
| 1364 | if (reason & B43legacy_IRQ_TBTT_INDI) |
| 1365 | handle_irq_tbtt_indication(dev); |
| 1366 | if (reason & B43legacy_IRQ_ATIM_END) |
| 1367 | handle_irq_atim_end(dev); |
| 1368 | if (reason & B43legacy_IRQ_BEACON) |
| 1369 | handle_irq_beacon(dev); |
| 1370 | if (reason & B43legacy_IRQ_PMQ) |
| 1371 | handle_irq_pmq(dev); |
| 1372 | if (reason & B43legacy_IRQ_TXFIFO_FLUSH_OK) |
| 1373 | ;/*TODO*/ |
| 1374 | if (reason & B43legacy_IRQ_NOISESAMPLE_OK) |
| 1375 | handle_irq_noise(dev); |
| 1376 | |
| 1377 | /* Check the DMA reason registers for received data. */ |
| 1378 | if (dma_reason[0] & B43legacy_DMAIRQ_RX_DONE) { |
| 1379 | if (b43legacy_using_pio(dev)) |
| 1380 | b43legacy_pio_rx(dev->pio.queue0); |
| 1381 | else |
| 1382 | b43legacy_dma_rx(dev->dma.rx_ring0); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1383 | } |
| 1384 | B43legacy_WARN_ON(dma_reason[1] & B43legacy_DMAIRQ_RX_DONE); |
| 1385 | B43legacy_WARN_ON(dma_reason[2] & B43legacy_DMAIRQ_RX_DONE); |
| 1386 | if (dma_reason[3] & B43legacy_DMAIRQ_RX_DONE) { |
| 1387 | if (b43legacy_using_pio(dev)) |
| 1388 | b43legacy_pio_rx(dev->pio.queue3); |
| 1389 | else |
| 1390 | b43legacy_dma_rx(dev->dma.rx_ring3); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1391 | } |
| 1392 | B43legacy_WARN_ON(dma_reason[4] & B43legacy_DMAIRQ_RX_DONE); |
| 1393 | B43legacy_WARN_ON(dma_reason[5] & B43legacy_DMAIRQ_RX_DONE); |
| 1394 | |
Larry Finger | ba48f7b | 2007-10-12 23:04:51 -0500 | [diff] [blame] | 1395 | if (reason & B43legacy_IRQ_TX_OK) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1396 | handle_irq_transmit_status(dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1397 | |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1398 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1399 | mmiowb(); |
| 1400 | spin_unlock_irqrestore(&dev->wl->irq_lock, flags); |
| 1401 | } |
| 1402 | |
| 1403 | static void pio_irq_workaround(struct b43legacy_wldev *dev, |
| 1404 | u16 base, int queueidx) |
| 1405 | { |
| 1406 | u16 rxctl; |
| 1407 | |
| 1408 | rxctl = b43legacy_read16(dev, base + B43legacy_PIO_RXCTL); |
| 1409 | if (rxctl & B43legacy_PIO_RXCTL_DATAAVAILABLE) |
| 1410 | dev->dma_reason[queueidx] |= B43legacy_DMAIRQ_RX_DONE; |
| 1411 | else |
| 1412 | dev->dma_reason[queueidx] &= ~B43legacy_DMAIRQ_RX_DONE; |
| 1413 | } |
| 1414 | |
| 1415 | static void b43legacy_interrupt_ack(struct b43legacy_wldev *dev, u32 reason) |
| 1416 | { |
| 1417 | if (b43legacy_using_pio(dev) && |
| 1418 | (dev->dev->id.revision < 3) && |
| 1419 | (!(reason & B43legacy_IRQ_PIO_WORKAROUND))) { |
| 1420 | /* Apply a PIO specific workaround to the dma_reasons */ |
| 1421 | pio_irq_workaround(dev, B43legacy_MMIO_PIO1_BASE, 0); |
| 1422 | pio_irq_workaround(dev, B43legacy_MMIO_PIO2_BASE, 1); |
| 1423 | pio_irq_workaround(dev, B43legacy_MMIO_PIO3_BASE, 2); |
| 1424 | pio_irq_workaround(dev, B43legacy_MMIO_PIO4_BASE, 3); |
| 1425 | } |
| 1426 | |
| 1427 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, reason); |
| 1428 | |
| 1429 | b43legacy_write32(dev, B43legacy_MMIO_DMA0_REASON, |
| 1430 | dev->dma_reason[0]); |
| 1431 | b43legacy_write32(dev, B43legacy_MMIO_DMA1_REASON, |
| 1432 | dev->dma_reason[1]); |
| 1433 | b43legacy_write32(dev, B43legacy_MMIO_DMA2_REASON, |
| 1434 | dev->dma_reason[2]); |
| 1435 | b43legacy_write32(dev, B43legacy_MMIO_DMA3_REASON, |
| 1436 | dev->dma_reason[3]); |
| 1437 | b43legacy_write32(dev, B43legacy_MMIO_DMA4_REASON, |
| 1438 | dev->dma_reason[4]); |
| 1439 | b43legacy_write32(dev, B43legacy_MMIO_DMA5_REASON, |
| 1440 | dev->dma_reason[5]); |
| 1441 | } |
| 1442 | |
| 1443 | /* Interrupt handler top-half */ |
| 1444 | static irqreturn_t b43legacy_interrupt_handler(int irq, void *dev_id) |
| 1445 | { |
| 1446 | irqreturn_t ret = IRQ_NONE; |
| 1447 | struct b43legacy_wldev *dev = dev_id; |
| 1448 | u32 reason; |
| 1449 | |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1450 | B43legacy_WARN_ON(!dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1451 | |
| 1452 | spin_lock(&dev->wl->irq_lock); |
| 1453 | |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1454 | if (unlikely(b43legacy_status(dev) < B43legacy_STAT_STARTED)) |
| 1455 | /* This can only happen on shared IRQ lines. */ |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1456 | goto out; |
| 1457 | reason = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON); |
| 1458 | if (reason == 0xffffffff) /* shared IRQ */ |
| 1459 | goto out; |
| 1460 | ret = IRQ_HANDLED; |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1461 | reason &= dev->irq_mask; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1462 | if (!reason) |
| 1463 | goto out; |
| 1464 | |
| 1465 | dev->dma_reason[0] = b43legacy_read32(dev, |
| 1466 | B43legacy_MMIO_DMA0_REASON) |
| 1467 | & 0x0001DC00; |
| 1468 | dev->dma_reason[1] = b43legacy_read32(dev, |
| 1469 | B43legacy_MMIO_DMA1_REASON) |
| 1470 | & 0x0000DC00; |
| 1471 | dev->dma_reason[2] = b43legacy_read32(dev, |
| 1472 | B43legacy_MMIO_DMA2_REASON) |
| 1473 | & 0x0000DC00; |
| 1474 | dev->dma_reason[3] = b43legacy_read32(dev, |
| 1475 | B43legacy_MMIO_DMA3_REASON) |
| 1476 | & 0x0001DC00; |
| 1477 | dev->dma_reason[4] = b43legacy_read32(dev, |
| 1478 | B43legacy_MMIO_DMA4_REASON) |
| 1479 | & 0x0000DC00; |
| 1480 | dev->dma_reason[5] = b43legacy_read32(dev, |
| 1481 | B43legacy_MMIO_DMA5_REASON) |
| 1482 | & 0x0000DC00; |
| 1483 | |
| 1484 | b43legacy_interrupt_ack(dev, reason); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1485 | /* Disable all IRQs. They are enabled again in the bottom half. */ |
| 1486 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0); |
| 1487 | /* Save the reason code and call our bottom half. */ |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1488 | dev->irq_reason = reason; |
| 1489 | tasklet_schedule(&dev->isr_tasklet); |
| 1490 | out: |
| 1491 | mmiowb(); |
| 1492 | spin_unlock(&dev->wl->irq_lock); |
| 1493 | |
| 1494 | return ret; |
| 1495 | } |
| 1496 | |
| 1497 | static void b43legacy_release_firmware(struct b43legacy_wldev *dev) |
| 1498 | { |
| 1499 | release_firmware(dev->fw.ucode); |
| 1500 | dev->fw.ucode = NULL; |
| 1501 | release_firmware(dev->fw.pcm); |
| 1502 | dev->fw.pcm = NULL; |
| 1503 | release_firmware(dev->fw.initvals); |
| 1504 | dev->fw.initvals = NULL; |
| 1505 | release_firmware(dev->fw.initvals_band); |
| 1506 | dev->fw.initvals_band = NULL; |
| 1507 | } |
| 1508 | |
| 1509 | static void b43legacy_print_fw_helptext(struct b43legacy_wl *wl) |
| 1510 | { |
| 1511 | b43legacyerr(wl, "You must go to http://linuxwireless.org/en/users/" |
Stefano Brivio | 354807e | 2007-11-19 20:21:31 +0100 | [diff] [blame] | 1512 | "Drivers/b43#devicefirmware " |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1513 | "and download the correct firmware (version 3).\n"); |
| 1514 | } |
| 1515 | |
| 1516 | static int do_request_fw(struct b43legacy_wldev *dev, |
| 1517 | const char *name, |
| 1518 | const struct firmware **fw) |
| 1519 | { |
| 1520 | char path[sizeof(modparam_fwpostfix) + 32]; |
| 1521 | struct b43legacy_fw_header *hdr; |
| 1522 | u32 size; |
| 1523 | int err; |
| 1524 | |
| 1525 | if (!name) |
| 1526 | return 0; |
| 1527 | |
| 1528 | snprintf(path, ARRAY_SIZE(path), |
| 1529 | "b43legacy%s/%s.fw", |
| 1530 | modparam_fwpostfix, name); |
| 1531 | err = request_firmware(fw, path, dev->dev->dev); |
| 1532 | if (err) { |
| 1533 | b43legacyerr(dev->wl, "Firmware file \"%s\" not found " |
| 1534 | "or load failed.\n", path); |
| 1535 | return err; |
| 1536 | } |
| 1537 | if ((*fw)->size < sizeof(struct b43legacy_fw_header)) |
| 1538 | goto err_format; |
| 1539 | hdr = (struct b43legacy_fw_header *)((*fw)->data); |
| 1540 | switch (hdr->type) { |
| 1541 | case B43legacy_FW_TYPE_UCODE: |
| 1542 | case B43legacy_FW_TYPE_PCM: |
| 1543 | size = be32_to_cpu(hdr->size); |
| 1544 | if (size != (*fw)->size - sizeof(struct b43legacy_fw_header)) |
| 1545 | goto err_format; |
| 1546 | /* fallthrough */ |
| 1547 | case B43legacy_FW_TYPE_IV: |
| 1548 | if (hdr->ver != 1) |
| 1549 | goto err_format; |
| 1550 | break; |
| 1551 | default: |
| 1552 | goto err_format; |
| 1553 | } |
| 1554 | |
| 1555 | return err; |
| 1556 | |
| 1557 | err_format: |
| 1558 | b43legacyerr(dev->wl, "Firmware file \"%s\" format error.\n", path); |
| 1559 | return -EPROTO; |
| 1560 | } |
| 1561 | |
| 1562 | static int b43legacy_request_firmware(struct b43legacy_wldev *dev) |
| 1563 | { |
| 1564 | struct b43legacy_firmware *fw = &dev->fw; |
| 1565 | const u8 rev = dev->dev->id.revision; |
| 1566 | const char *filename; |
| 1567 | u32 tmshigh; |
| 1568 | int err; |
| 1569 | |
| 1570 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); |
| 1571 | if (!fw->ucode) { |
| 1572 | if (rev == 2) |
| 1573 | filename = "ucode2"; |
| 1574 | else if (rev == 4) |
| 1575 | filename = "ucode4"; |
| 1576 | else |
| 1577 | filename = "ucode5"; |
| 1578 | err = do_request_fw(dev, filename, &fw->ucode); |
| 1579 | if (err) |
| 1580 | goto err_load; |
| 1581 | } |
| 1582 | if (!fw->pcm) { |
| 1583 | if (rev < 5) |
| 1584 | filename = "pcm4"; |
| 1585 | else |
| 1586 | filename = "pcm5"; |
| 1587 | err = do_request_fw(dev, filename, &fw->pcm); |
| 1588 | if (err) |
| 1589 | goto err_load; |
| 1590 | } |
| 1591 | if (!fw->initvals) { |
| 1592 | switch (dev->phy.type) { |
Stefano Brivio | 385f848 | 2008-04-06 17:10:53 +0200 | [diff] [blame] | 1593 | case B43legacy_PHYTYPE_B: |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1594 | case B43legacy_PHYTYPE_G: |
| 1595 | if ((rev >= 5) && (rev <= 10)) |
| 1596 | filename = "b0g0initvals5"; |
| 1597 | else if (rev == 2 || rev == 4) |
| 1598 | filename = "b0g0initvals2"; |
| 1599 | else |
| 1600 | goto err_no_initvals; |
| 1601 | break; |
| 1602 | default: |
| 1603 | goto err_no_initvals; |
| 1604 | } |
| 1605 | err = do_request_fw(dev, filename, &fw->initvals); |
| 1606 | if (err) |
| 1607 | goto err_load; |
| 1608 | } |
| 1609 | if (!fw->initvals_band) { |
| 1610 | switch (dev->phy.type) { |
Stefano Brivio | 385f848 | 2008-04-06 17:10:53 +0200 | [diff] [blame] | 1611 | case B43legacy_PHYTYPE_B: |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1612 | case B43legacy_PHYTYPE_G: |
| 1613 | if ((rev >= 5) && (rev <= 10)) |
| 1614 | filename = "b0g0bsinitvals5"; |
| 1615 | else if (rev >= 11) |
| 1616 | filename = NULL; |
| 1617 | else if (rev == 2 || rev == 4) |
| 1618 | filename = NULL; |
| 1619 | else |
| 1620 | goto err_no_initvals; |
| 1621 | break; |
| 1622 | default: |
| 1623 | goto err_no_initvals; |
| 1624 | } |
| 1625 | err = do_request_fw(dev, filename, &fw->initvals_band); |
| 1626 | if (err) |
| 1627 | goto err_load; |
| 1628 | } |
| 1629 | |
| 1630 | return 0; |
| 1631 | |
| 1632 | err_load: |
| 1633 | b43legacy_print_fw_helptext(dev->wl); |
| 1634 | goto error; |
| 1635 | |
| 1636 | err_no_initvals: |
| 1637 | err = -ENODEV; |
| 1638 | b43legacyerr(dev->wl, "No Initial Values firmware file for PHY %u, " |
| 1639 | "core rev %u\n", dev->phy.type, rev); |
| 1640 | goto error; |
| 1641 | |
| 1642 | error: |
| 1643 | b43legacy_release_firmware(dev); |
| 1644 | return err; |
| 1645 | } |
| 1646 | |
| 1647 | static int b43legacy_upload_microcode(struct b43legacy_wldev *dev) |
| 1648 | { |
John W. Linville | bcf3c7c | 2010-07-29 13:30:15 -0400 | [diff] [blame] | 1649 | struct wiphy *wiphy = dev->wl->hw->wiphy; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1650 | const size_t hdr_len = sizeof(struct b43legacy_fw_header); |
| 1651 | const __be32 *data; |
| 1652 | unsigned int i; |
| 1653 | unsigned int len; |
| 1654 | u16 fwrev; |
| 1655 | u16 fwpatch; |
| 1656 | u16 fwdate; |
| 1657 | u16 fwtime; |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1658 | u32 tmp, macctl; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1659 | int err = 0; |
| 1660 | |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1661 | /* Jump the microcode PSM to offset 0 */ |
| 1662 | macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 1663 | B43legacy_WARN_ON(macctl & B43legacy_MACCTL_PSM_RUN); |
| 1664 | macctl |= B43legacy_MACCTL_PSM_JMP0; |
| 1665 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl); |
| 1666 | /* Zero out all microcode PSM registers and shared memory. */ |
| 1667 | for (i = 0; i < 64; i++) |
| 1668 | b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, i, 0); |
| 1669 | for (i = 0; i < 4096; i += 2) |
| 1670 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, i, 0); |
| 1671 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1672 | /* Upload Microcode. */ |
| 1673 | data = (__be32 *) (dev->fw.ucode->data + hdr_len); |
| 1674 | len = (dev->fw.ucode->size - hdr_len) / sizeof(__be32); |
| 1675 | b43legacy_shm_control_word(dev, |
| 1676 | B43legacy_SHM_UCODE | |
| 1677 | B43legacy_SHM_AUTOINC_W, |
| 1678 | 0x0000); |
| 1679 | for (i = 0; i < len; i++) { |
| 1680 | b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, |
| 1681 | be32_to_cpu(data[i])); |
| 1682 | udelay(10); |
| 1683 | } |
| 1684 | |
| 1685 | if (dev->fw.pcm) { |
| 1686 | /* Upload PCM data. */ |
| 1687 | data = (__be32 *) (dev->fw.pcm->data + hdr_len); |
| 1688 | len = (dev->fw.pcm->size - hdr_len) / sizeof(__be32); |
| 1689 | b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EA); |
| 1690 | b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, 0x00004000); |
| 1691 | /* No need for autoinc bit in SHM_HW */ |
| 1692 | b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EB); |
| 1693 | for (i = 0; i < len; i++) { |
| 1694 | b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, |
| 1695 | be32_to_cpu(data[i])); |
| 1696 | udelay(10); |
| 1697 | } |
| 1698 | } |
| 1699 | |
| 1700 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, |
| 1701 | B43legacy_IRQ_ALL); |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1702 | |
| 1703 | /* Start the microcode PSM */ |
| 1704 | macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 1705 | macctl &= ~B43legacy_MACCTL_PSM_JMP0; |
| 1706 | macctl |= B43legacy_MACCTL_PSM_RUN; |
| 1707 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1708 | |
| 1709 | /* Wait for the microcode to load and respond */ |
| 1710 | i = 0; |
| 1711 | while (1) { |
| 1712 | tmp = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON); |
| 1713 | if (tmp == B43legacy_IRQ_MAC_SUSPENDED) |
| 1714 | break; |
| 1715 | i++; |
| 1716 | if (i >= B43legacy_IRQWAIT_MAX_RETRIES) { |
| 1717 | b43legacyerr(dev->wl, "Microcode not responding\n"); |
| 1718 | b43legacy_print_fw_helptext(dev->wl); |
| 1719 | err = -ENODEV; |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1720 | goto error; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1721 | } |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1722 | msleep_interruptible(50); |
| 1723 | if (signal_pending(current)) { |
| 1724 | err = -EINTR; |
| 1725 | goto error; |
| 1726 | } |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1727 | } |
| 1728 | /* dummy read follows */ |
| 1729 | b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON); |
| 1730 | |
| 1731 | /* Get and check the revisions. */ |
| 1732 | fwrev = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 1733 | B43legacy_SHM_SH_UCODEREV); |
| 1734 | fwpatch = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 1735 | B43legacy_SHM_SH_UCODEPATCH); |
| 1736 | fwdate = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 1737 | B43legacy_SHM_SH_UCODEDATE); |
| 1738 | fwtime = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 1739 | B43legacy_SHM_SH_UCODETIME); |
| 1740 | |
| 1741 | if (fwrev > 0x128) { |
| 1742 | b43legacyerr(dev->wl, "YOU ARE TRYING TO LOAD V4 FIRMWARE." |
| 1743 | " Only firmware from binary drivers version 3.x" |
| 1744 | " is supported. You must change your firmware" |
| 1745 | " files.\n"); |
| 1746 | b43legacy_print_fw_helptext(dev->wl); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1747 | err = -EOPNOTSUPP; |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1748 | goto error; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1749 | } |
Stefano Brivio | cfbc35b | 2008-02-12 03:09:10 +0100 | [diff] [blame] | 1750 | b43legacyinfo(dev->wl, "Loading firmware version 0x%X, patch level %u " |
| 1751 | "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", fwrev, fwpatch, |
| 1752 | (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF, |
| 1753 | (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, |
| 1754 | fwtime & 0x1F); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1755 | |
| 1756 | dev->fw.rev = fwrev; |
| 1757 | dev->fw.patch = fwpatch; |
| 1758 | |
John W. Linville | bcf3c7c | 2010-07-29 13:30:15 -0400 | [diff] [blame] | 1759 | snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u", |
| 1760 | dev->fw.rev, dev->fw.patch); |
| 1761 | wiphy->hw_version = dev->dev->id.coreid; |
| 1762 | |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1763 | return 0; |
| 1764 | |
| 1765 | error: |
| 1766 | macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 1767 | macctl &= ~B43legacy_MACCTL_PSM_RUN; |
| 1768 | macctl |= B43legacy_MACCTL_PSM_JMP0; |
| 1769 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl); |
| 1770 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1771 | return err; |
| 1772 | } |
| 1773 | |
| 1774 | static int b43legacy_write_initvals(struct b43legacy_wldev *dev, |
| 1775 | const struct b43legacy_iv *ivals, |
| 1776 | size_t count, |
| 1777 | size_t array_size) |
| 1778 | { |
| 1779 | const struct b43legacy_iv *iv; |
| 1780 | u16 offset; |
| 1781 | size_t i; |
| 1782 | bool bit32; |
| 1783 | |
| 1784 | BUILD_BUG_ON(sizeof(struct b43legacy_iv) != 6); |
| 1785 | iv = ivals; |
| 1786 | for (i = 0; i < count; i++) { |
| 1787 | if (array_size < sizeof(iv->offset_size)) |
| 1788 | goto err_format; |
| 1789 | array_size -= sizeof(iv->offset_size); |
| 1790 | offset = be16_to_cpu(iv->offset_size); |
| 1791 | bit32 = !!(offset & B43legacy_IV_32BIT); |
| 1792 | offset &= B43legacy_IV_OFFSET_MASK; |
| 1793 | if (offset >= 0x1000) |
| 1794 | goto err_format; |
| 1795 | if (bit32) { |
| 1796 | u32 value; |
| 1797 | |
| 1798 | if (array_size < sizeof(iv->data.d32)) |
| 1799 | goto err_format; |
| 1800 | array_size -= sizeof(iv->data.d32); |
| 1801 | |
Harvey Harrison | 533dd1b | 2008-04-29 01:03:36 -0700 | [diff] [blame] | 1802 | value = get_unaligned_be32(&iv->data.d32); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1803 | b43legacy_write32(dev, offset, value); |
| 1804 | |
| 1805 | iv = (const struct b43legacy_iv *)((const uint8_t *)iv + |
| 1806 | sizeof(__be16) + |
| 1807 | sizeof(__be32)); |
| 1808 | } else { |
| 1809 | u16 value; |
| 1810 | |
| 1811 | if (array_size < sizeof(iv->data.d16)) |
| 1812 | goto err_format; |
| 1813 | array_size -= sizeof(iv->data.d16); |
| 1814 | |
| 1815 | value = be16_to_cpu(iv->data.d16); |
| 1816 | b43legacy_write16(dev, offset, value); |
| 1817 | |
| 1818 | iv = (const struct b43legacy_iv *)((const uint8_t *)iv + |
| 1819 | sizeof(__be16) + |
| 1820 | sizeof(__be16)); |
| 1821 | } |
| 1822 | } |
| 1823 | if (array_size) |
| 1824 | goto err_format; |
| 1825 | |
| 1826 | return 0; |
| 1827 | |
| 1828 | err_format: |
| 1829 | b43legacyerr(dev->wl, "Initial Values Firmware file-format error.\n"); |
| 1830 | b43legacy_print_fw_helptext(dev->wl); |
| 1831 | |
| 1832 | return -EPROTO; |
| 1833 | } |
| 1834 | |
| 1835 | static int b43legacy_upload_initvals(struct b43legacy_wldev *dev) |
| 1836 | { |
| 1837 | const size_t hdr_len = sizeof(struct b43legacy_fw_header); |
| 1838 | const struct b43legacy_fw_header *hdr; |
| 1839 | struct b43legacy_firmware *fw = &dev->fw; |
| 1840 | const struct b43legacy_iv *ivals; |
| 1841 | size_t count; |
| 1842 | int err; |
| 1843 | |
| 1844 | hdr = (const struct b43legacy_fw_header *)(fw->initvals->data); |
| 1845 | ivals = (const struct b43legacy_iv *)(fw->initvals->data + hdr_len); |
| 1846 | count = be32_to_cpu(hdr->size); |
| 1847 | err = b43legacy_write_initvals(dev, ivals, count, |
| 1848 | fw->initvals->size - hdr_len); |
| 1849 | if (err) |
| 1850 | goto out; |
| 1851 | if (fw->initvals_band) { |
| 1852 | hdr = (const struct b43legacy_fw_header *) |
| 1853 | (fw->initvals_band->data); |
| 1854 | ivals = (const struct b43legacy_iv *)(fw->initvals_band->data |
| 1855 | + hdr_len); |
| 1856 | count = be32_to_cpu(hdr->size); |
| 1857 | err = b43legacy_write_initvals(dev, ivals, count, |
| 1858 | fw->initvals_band->size - hdr_len); |
| 1859 | if (err) |
| 1860 | goto out; |
| 1861 | } |
| 1862 | out: |
| 1863 | |
| 1864 | return err; |
| 1865 | } |
| 1866 | |
| 1867 | /* Initialize the GPIOs |
| 1868 | * http://bcm-specs.sipsolutions.net/GPIO |
| 1869 | */ |
| 1870 | static int b43legacy_gpio_init(struct b43legacy_wldev *dev) |
| 1871 | { |
| 1872 | struct ssb_bus *bus = dev->dev->bus; |
| 1873 | struct ssb_device *gpiodev, *pcidev = NULL; |
| 1874 | u32 mask; |
| 1875 | u32 set; |
| 1876 | |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1877 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1878 | b43legacy_read32(dev, |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1879 | B43legacy_MMIO_MACCTL) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1880 | & 0xFFFF3FFF); |
| 1881 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1882 | b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK, |
| 1883 | b43legacy_read16(dev, |
| 1884 | B43legacy_MMIO_GPIO_MASK) |
| 1885 | | 0x000F); |
| 1886 | |
| 1887 | mask = 0x0000001F; |
| 1888 | set = 0x0000000F; |
| 1889 | if (dev->dev->bus->chip_id == 0x4301) { |
| 1890 | mask |= 0x0060; |
| 1891 | set |= 0x0060; |
| 1892 | } |
Larry Finger | 7797aa3 | 2007-11-09 16:57:34 -0600 | [diff] [blame] | 1893 | if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL) { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1894 | b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK, |
| 1895 | b43legacy_read16(dev, |
| 1896 | B43legacy_MMIO_GPIO_MASK) |
| 1897 | | 0x0200); |
| 1898 | mask |= 0x0200; |
| 1899 | set |= 0x0200; |
| 1900 | } |
| 1901 | if (dev->dev->id.revision >= 2) |
| 1902 | mask |= 0x0010; /* FIXME: This is redundant. */ |
| 1903 | |
| 1904 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
| 1905 | pcidev = bus->pcicore.dev; |
| 1906 | #endif |
| 1907 | gpiodev = bus->chipco.dev ? : pcidev; |
| 1908 | if (!gpiodev) |
| 1909 | return 0; |
| 1910 | ssb_write32(gpiodev, B43legacy_GPIO_CONTROL, |
| 1911 | (ssb_read32(gpiodev, B43legacy_GPIO_CONTROL) |
| 1912 | & mask) | set); |
| 1913 | |
| 1914 | return 0; |
| 1915 | } |
| 1916 | |
| 1917 | /* Turn off all GPIO stuff. Call this on module unload, for example. */ |
| 1918 | static void b43legacy_gpio_cleanup(struct b43legacy_wldev *dev) |
| 1919 | { |
| 1920 | struct ssb_bus *bus = dev->dev->bus; |
| 1921 | struct ssb_device *gpiodev, *pcidev = NULL; |
| 1922 | |
| 1923 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
| 1924 | pcidev = bus->pcicore.dev; |
| 1925 | #endif |
| 1926 | gpiodev = bus->chipco.dev ? : pcidev; |
| 1927 | if (!gpiodev) |
| 1928 | return; |
| 1929 | ssb_write32(gpiodev, B43legacy_GPIO_CONTROL, 0); |
| 1930 | } |
| 1931 | |
| 1932 | /* http://bcm-specs.sipsolutions.net/EnableMac */ |
| 1933 | void b43legacy_mac_enable(struct b43legacy_wldev *dev) |
| 1934 | { |
| 1935 | dev->mac_suspended--; |
| 1936 | B43legacy_WARN_ON(dev->mac_suspended < 0); |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1937 | B43legacy_WARN_ON(irqs_disabled()); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1938 | if (dev->mac_suspended == 0) { |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1939 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1940 | b43legacy_read32(dev, |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1941 | B43legacy_MMIO_MACCTL) |
| 1942 | | B43legacy_MACCTL_ENABLED); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1943 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, |
| 1944 | B43legacy_IRQ_MAC_SUSPENDED); |
| 1945 | /* the next two are dummy reads */ |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1946 | b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1947 | b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON); |
| 1948 | b43legacy_power_saving_ctl_bits(dev, -1, -1); |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1949 | |
| 1950 | /* Re-enable IRQs. */ |
| 1951 | spin_lock_irq(&dev->wl->irq_lock); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1952 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, |
| 1953 | dev->irq_mask); |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1954 | spin_unlock_irq(&dev->wl->irq_lock); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1955 | } |
| 1956 | } |
| 1957 | |
| 1958 | /* http://bcm-specs.sipsolutions.net/SuspendMAC */ |
| 1959 | void b43legacy_mac_suspend(struct b43legacy_wldev *dev) |
| 1960 | { |
| 1961 | int i; |
| 1962 | u32 tmp; |
| 1963 | |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1964 | might_sleep(); |
| 1965 | B43legacy_WARN_ON(irqs_disabled()); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1966 | B43legacy_WARN_ON(dev->mac_suspended < 0); |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1967 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1968 | if (dev->mac_suspended == 0) { |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1969 | /* Mask IRQs before suspending MAC. Otherwise |
| 1970 | * the MAC stays busy and won't suspend. */ |
| 1971 | spin_lock_irq(&dev->wl->irq_lock); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 1972 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0); |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1973 | spin_unlock_irq(&dev->wl->irq_lock); |
| 1974 | b43legacy_synchronize_irq(dev); |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1975 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1976 | b43legacy_power_saving_ctl_bits(dev, -1, 1); |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1977 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1978 | b43legacy_read32(dev, |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 1979 | B43legacy_MMIO_MACCTL) |
| 1980 | & ~B43legacy_MACCTL_ENABLED); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1981 | b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON); |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1982 | for (i = 40; i; i--) { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1983 | tmp = b43legacy_read32(dev, |
| 1984 | B43legacy_MMIO_GEN_IRQ_REASON); |
| 1985 | if (tmp & B43legacy_IRQ_MAC_SUSPENDED) |
| 1986 | goto out; |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 1987 | msleep(1); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 1988 | } |
| 1989 | b43legacyerr(dev->wl, "MAC suspend failed\n"); |
| 1990 | } |
| 1991 | out: |
| 1992 | dev->mac_suspended++; |
| 1993 | } |
| 1994 | |
| 1995 | static void b43legacy_adjust_opmode(struct b43legacy_wldev *dev) |
| 1996 | { |
| 1997 | struct b43legacy_wl *wl = dev->wl; |
| 1998 | u32 ctl; |
| 1999 | u16 cfp_pretbtt; |
| 2000 | |
| 2001 | ctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 2002 | /* Reset status to STA infrastructure mode. */ |
| 2003 | ctl &= ~B43legacy_MACCTL_AP; |
| 2004 | ctl &= ~B43legacy_MACCTL_KEEP_CTL; |
| 2005 | ctl &= ~B43legacy_MACCTL_KEEP_BADPLCP; |
| 2006 | ctl &= ~B43legacy_MACCTL_KEEP_BAD; |
| 2007 | ctl &= ~B43legacy_MACCTL_PROMISC; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2008 | ctl &= ~B43legacy_MACCTL_BEACPROMISC; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2009 | ctl |= B43legacy_MACCTL_INFRA; |
| 2010 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2011 | if (b43legacy_is_mode(wl, NL80211_IFTYPE_AP)) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2012 | ctl |= B43legacy_MACCTL_AP; |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2013 | else if (b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2014 | ctl &= ~B43legacy_MACCTL_INFRA; |
| 2015 | |
| 2016 | if (wl->filter_flags & FIF_CONTROL) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2017 | ctl |= B43legacy_MACCTL_KEEP_CTL; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2018 | if (wl->filter_flags & FIF_FCSFAIL) |
| 2019 | ctl |= B43legacy_MACCTL_KEEP_BAD; |
| 2020 | if (wl->filter_flags & FIF_PLCPFAIL) |
| 2021 | ctl |= B43legacy_MACCTL_KEEP_BADPLCP; |
| 2022 | if (wl->filter_flags & FIF_PROMISC_IN_BSS) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2023 | ctl |= B43legacy_MACCTL_PROMISC; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2024 | if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC) |
| 2025 | ctl |= B43legacy_MACCTL_BEACPROMISC; |
| 2026 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2027 | /* Workaround: On old hardware the HW-MAC-address-filter |
| 2028 | * doesn't work properly, so always run promisc in filter |
| 2029 | * it in software. */ |
| 2030 | if (dev->dev->id.revision <= 4) |
| 2031 | ctl |= B43legacy_MACCTL_PROMISC; |
| 2032 | |
| 2033 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, ctl); |
| 2034 | |
| 2035 | cfp_pretbtt = 2; |
| 2036 | if ((ctl & B43legacy_MACCTL_INFRA) && |
| 2037 | !(ctl & B43legacy_MACCTL_AP)) { |
| 2038 | if (dev->dev->bus->chip_id == 0x4306 && |
| 2039 | dev->dev->bus->chip_rev == 3) |
| 2040 | cfp_pretbtt = 100; |
| 2041 | else |
| 2042 | cfp_pretbtt = 50; |
| 2043 | } |
| 2044 | b43legacy_write16(dev, 0x612, cfp_pretbtt); |
| 2045 | } |
| 2046 | |
| 2047 | static void b43legacy_rate_memory_write(struct b43legacy_wldev *dev, |
| 2048 | u16 rate, |
| 2049 | int is_ofdm) |
| 2050 | { |
| 2051 | u16 offset; |
| 2052 | |
| 2053 | if (is_ofdm) { |
| 2054 | offset = 0x480; |
| 2055 | offset += (b43legacy_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; |
| 2056 | } else { |
| 2057 | offset = 0x4C0; |
| 2058 | offset += (b43legacy_plcp_get_ratecode_cck(rate) & 0x000F) * 2; |
| 2059 | } |
| 2060 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, offset + 0x20, |
| 2061 | b43legacy_shm_read16(dev, |
| 2062 | B43legacy_SHM_SHARED, offset)); |
| 2063 | } |
| 2064 | |
| 2065 | static void b43legacy_rate_memory_init(struct b43legacy_wldev *dev) |
| 2066 | { |
| 2067 | switch (dev->phy.type) { |
| 2068 | case B43legacy_PHYTYPE_G: |
| 2069 | b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_6MB, 1); |
| 2070 | b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_12MB, 1); |
| 2071 | b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_18MB, 1); |
| 2072 | b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_24MB, 1); |
| 2073 | b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_36MB, 1); |
| 2074 | b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_48MB, 1); |
| 2075 | b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_54MB, 1); |
| 2076 | /* fallthrough */ |
| 2077 | case B43legacy_PHYTYPE_B: |
| 2078 | b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_1MB, 0); |
| 2079 | b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_2MB, 0); |
| 2080 | b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_5MB, 0); |
| 2081 | b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_11MB, 0); |
| 2082 | break; |
| 2083 | default: |
| 2084 | B43legacy_BUG_ON(1); |
| 2085 | } |
| 2086 | } |
| 2087 | |
| 2088 | /* Set the TX-Antenna for management frames sent by firmware. */ |
| 2089 | static void b43legacy_mgmtframe_txantenna(struct b43legacy_wldev *dev, |
| 2090 | int antenna) |
| 2091 | { |
| 2092 | u16 ant = 0; |
| 2093 | u16 tmp; |
| 2094 | |
| 2095 | switch (antenna) { |
| 2096 | case B43legacy_ANTENNA0: |
| 2097 | ant |= B43legacy_TX4_PHY_ANT0; |
| 2098 | break; |
| 2099 | case B43legacy_ANTENNA1: |
| 2100 | ant |= B43legacy_TX4_PHY_ANT1; |
| 2101 | break; |
| 2102 | case B43legacy_ANTENNA_AUTO: |
| 2103 | ant |= B43legacy_TX4_PHY_ANTLAST; |
| 2104 | break; |
| 2105 | default: |
| 2106 | B43legacy_BUG_ON(1); |
| 2107 | } |
| 2108 | |
| 2109 | /* FIXME We also need to set the other flags of the PHY control |
| 2110 | * field somewhere. */ |
| 2111 | |
| 2112 | /* For Beacons */ |
| 2113 | tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 2114 | B43legacy_SHM_SH_BEACPHYCTL); |
| 2115 | tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant; |
| 2116 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 2117 | B43legacy_SHM_SH_BEACPHYCTL, tmp); |
| 2118 | /* For ACK/CTS */ |
| 2119 | tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 2120 | B43legacy_SHM_SH_ACKCTSPHYCTL); |
| 2121 | tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant; |
| 2122 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 2123 | B43legacy_SHM_SH_ACKCTSPHYCTL, tmp); |
| 2124 | /* For Probe Resposes */ |
| 2125 | tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 2126 | B43legacy_SHM_SH_PRPHYCTL); |
| 2127 | tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant; |
| 2128 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 2129 | B43legacy_SHM_SH_PRPHYCTL, tmp); |
| 2130 | } |
| 2131 | |
| 2132 | /* This is the opposite of b43legacy_chip_init() */ |
| 2133 | static void b43legacy_chip_exit(struct b43legacy_wldev *dev) |
| 2134 | { |
Larry Finger | 93bb7f3 | 2007-10-10 22:44:22 -0500 | [diff] [blame] | 2135 | b43legacy_radio_turn_off(dev, 1); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2136 | b43legacy_gpio_cleanup(dev); |
| 2137 | /* firmware is released later */ |
| 2138 | } |
| 2139 | |
| 2140 | /* Initialize the chip |
| 2141 | * http://bcm-specs.sipsolutions.net/ChipInit |
| 2142 | */ |
| 2143 | static int b43legacy_chip_init(struct b43legacy_wldev *dev) |
| 2144 | { |
| 2145 | struct b43legacy_phy *phy = &dev->phy; |
| 2146 | int err; |
| 2147 | int tmp; |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 2148 | u32 value32, macctl; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2149 | u16 value16; |
| 2150 | |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 2151 | /* Initialize the MAC control */ |
| 2152 | macctl = B43legacy_MACCTL_IHR_ENABLED | B43legacy_MACCTL_SHM_ENABLED; |
| 2153 | if (dev->phy.gmode) |
| 2154 | macctl |= B43legacy_MACCTL_GMODE; |
| 2155 | macctl |= B43legacy_MACCTL_INFRA; |
| 2156 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2157 | |
| 2158 | err = b43legacy_request_firmware(dev); |
| 2159 | if (err) |
| 2160 | goto out; |
| 2161 | err = b43legacy_upload_microcode(dev); |
| 2162 | if (err) |
| 2163 | goto out; /* firmware is released later */ |
| 2164 | |
| 2165 | err = b43legacy_gpio_init(dev); |
| 2166 | if (err) |
| 2167 | goto out; /* firmware is released later */ |
Larry Finger | ba48f7b | 2007-10-12 23:04:51 -0500 | [diff] [blame] | 2168 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2169 | err = b43legacy_upload_initvals(dev); |
| 2170 | if (err) |
Larry Finger | 4ad36d7 | 2007-12-16 19:21:06 +0100 | [diff] [blame] | 2171 | goto err_gpio_clean; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2172 | b43legacy_radio_turn_on(dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2173 | |
| 2174 | b43legacy_write16(dev, 0x03E6, 0x0000); |
| 2175 | err = b43legacy_phy_init(dev); |
| 2176 | if (err) |
| 2177 | goto err_radio_off; |
| 2178 | |
| 2179 | /* Select initial Interference Mitigation. */ |
| 2180 | tmp = phy->interfmode; |
| 2181 | phy->interfmode = B43legacy_INTERFMODE_NONE; |
| 2182 | b43legacy_radio_set_interference_mitigation(dev, tmp); |
| 2183 | |
| 2184 | b43legacy_phy_set_antenna_diversity(dev); |
| 2185 | b43legacy_mgmtframe_txantenna(dev, B43legacy_ANTENNA_DEFAULT); |
| 2186 | |
| 2187 | if (phy->type == B43legacy_PHYTYPE_B) { |
| 2188 | value16 = b43legacy_read16(dev, 0x005E); |
| 2189 | value16 |= 0x0004; |
| 2190 | b43legacy_write16(dev, 0x005E, value16); |
| 2191 | } |
| 2192 | b43legacy_write32(dev, 0x0100, 0x01000000); |
| 2193 | if (dev->dev->id.revision < 5) |
| 2194 | b43legacy_write32(dev, 0x010C, 0x01000000); |
| 2195 | |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 2196 | value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 2197 | value32 &= ~B43legacy_MACCTL_INFRA; |
| 2198 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32); |
| 2199 | value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 2200 | value32 |= B43legacy_MACCTL_INFRA; |
| 2201 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2202 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2203 | if (b43legacy_using_pio(dev)) { |
| 2204 | b43legacy_write32(dev, 0x0210, 0x00000100); |
| 2205 | b43legacy_write32(dev, 0x0230, 0x00000100); |
| 2206 | b43legacy_write32(dev, 0x0250, 0x00000100); |
| 2207 | b43legacy_write32(dev, 0x0270, 0x00000100); |
| 2208 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0034, |
| 2209 | 0x0000); |
| 2210 | } |
| 2211 | |
| 2212 | /* Probe Response Timeout value */ |
| 2213 | /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ |
| 2214 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0074, 0x0000); |
| 2215 | |
| 2216 | /* Initially set the wireless operation mode. */ |
| 2217 | b43legacy_adjust_opmode(dev); |
| 2218 | |
| 2219 | if (dev->dev->id.revision < 3) { |
| 2220 | b43legacy_write16(dev, 0x060E, 0x0000); |
| 2221 | b43legacy_write16(dev, 0x0610, 0x8000); |
| 2222 | b43legacy_write16(dev, 0x0604, 0x0000); |
| 2223 | b43legacy_write16(dev, 0x0606, 0x0200); |
| 2224 | } else { |
| 2225 | b43legacy_write32(dev, 0x0188, 0x80000000); |
| 2226 | b43legacy_write32(dev, 0x018C, 0x02000000); |
| 2227 | } |
| 2228 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, 0x00004000); |
| 2229 | b43legacy_write32(dev, B43legacy_MMIO_DMA0_IRQ_MASK, 0x0001DC00); |
| 2230 | b43legacy_write32(dev, B43legacy_MMIO_DMA1_IRQ_MASK, 0x0000DC00); |
| 2231 | b43legacy_write32(dev, B43legacy_MMIO_DMA2_IRQ_MASK, 0x0000DC00); |
| 2232 | b43legacy_write32(dev, B43legacy_MMIO_DMA3_IRQ_MASK, 0x0001DC00); |
| 2233 | b43legacy_write32(dev, B43legacy_MMIO_DMA4_IRQ_MASK, 0x0000DC00); |
| 2234 | b43legacy_write32(dev, B43legacy_MMIO_DMA5_IRQ_MASK, 0x0000DC00); |
| 2235 | |
| 2236 | value32 = ssb_read32(dev->dev, SSB_TMSLOW); |
| 2237 | value32 |= 0x00100000; |
| 2238 | ssb_write32(dev->dev, SSB_TMSLOW, value32); |
| 2239 | |
| 2240 | b43legacy_write16(dev, B43legacy_MMIO_POWERUP_DELAY, |
| 2241 | dev->dev->bus->chipco.fast_pwrup_delay); |
| 2242 | |
Stefano Brivio | a293ee9 | 2007-11-24 23:35:25 +0100 | [diff] [blame] | 2243 | /* PHY TX errors counter. */ |
| 2244 | atomic_set(&phy->txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT); |
| 2245 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2246 | B43legacy_WARN_ON(err != 0); |
| 2247 | b43legacydbg(dev->wl, "Chip initialized\n"); |
| 2248 | out: |
| 2249 | return err; |
| 2250 | |
| 2251 | err_radio_off: |
Larry Finger | 93bb7f3 | 2007-10-10 22:44:22 -0500 | [diff] [blame] | 2252 | b43legacy_radio_turn_off(dev, 1); |
Larry Finger | 4ad36d7 | 2007-12-16 19:21:06 +0100 | [diff] [blame] | 2253 | err_gpio_clean: |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2254 | b43legacy_gpio_cleanup(dev); |
| 2255 | goto out; |
| 2256 | } |
| 2257 | |
| 2258 | static void b43legacy_periodic_every120sec(struct b43legacy_wldev *dev) |
| 2259 | { |
| 2260 | struct b43legacy_phy *phy = &dev->phy; |
| 2261 | |
| 2262 | if (phy->type != B43legacy_PHYTYPE_G || phy->rev < 2) |
| 2263 | return; |
| 2264 | |
| 2265 | b43legacy_mac_suspend(dev); |
| 2266 | b43legacy_phy_lo_g_measure(dev); |
| 2267 | b43legacy_mac_enable(dev); |
| 2268 | } |
| 2269 | |
| 2270 | static void b43legacy_periodic_every60sec(struct b43legacy_wldev *dev) |
| 2271 | { |
| 2272 | b43legacy_phy_lo_mark_all_unused(dev); |
Larry Finger | 7797aa3 | 2007-11-09 16:57:34 -0600 | [diff] [blame] | 2273 | if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2274 | b43legacy_mac_suspend(dev); |
| 2275 | b43legacy_calc_nrssi_slope(dev); |
| 2276 | b43legacy_mac_enable(dev); |
| 2277 | } |
| 2278 | } |
| 2279 | |
| 2280 | static void b43legacy_periodic_every30sec(struct b43legacy_wldev *dev) |
| 2281 | { |
| 2282 | /* Update device statistics. */ |
| 2283 | b43legacy_calculate_link_quality(dev); |
| 2284 | } |
| 2285 | |
| 2286 | static void b43legacy_periodic_every15sec(struct b43legacy_wldev *dev) |
| 2287 | { |
| 2288 | b43legacy_phy_xmitpower(dev); /* FIXME: unless scanning? */ |
Stefano Brivio | a293ee9 | 2007-11-24 23:35:25 +0100 | [diff] [blame] | 2289 | |
| 2290 | atomic_set(&dev->phy.txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT); |
| 2291 | wmb(); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2292 | } |
| 2293 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2294 | static void do_periodic_work(struct b43legacy_wldev *dev) |
| 2295 | { |
| 2296 | unsigned int state; |
| 2297 | |
| 2298 | state = dev->periodic_state; |
Larry Finger | 6be5083 | 2007-10-10 22:48:17 -0500 | [diff] [blame] | 2299 | if (state % 8 == 0) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2300 | b43legacy_periodic_every120sec(dev); |
Larry Finger | 6be5083 | 2007-10-10 22:48:17 -0500 | [diff] [blame] | 2301 | if (state % 4 == 0) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2302 | b43legacy_periodic_every60sec(dev); |
Larry Finger | 6be5083 | 2007-10-10 22:48:17 -0500 | [diff] [blame] | 2303 | if (state % 2 == 0) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2304 | b43legacy_periodic_every30sec(dev); |
Larry Finger | 6be5083 | 2007-10-10 22:48:17 -0500 | [diff] [blame] | 2305 | b43legacy_periodic_every15sec(dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2306 | } |
| 2307 | |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 2308 | /* Periodic work locking policy: |
| 2309 | * The whole periodic work handler is protected by |
| 2310 | * wl->mutex. If another lock is needed somewhere in the |
Uwe Kleine-König | 21ae295 | 2009-10-07 15:21:09 +0200 | [diff] [blame] | 2311 | * pwork callchain, it's acquired in-place, where it's needed. |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2312 | */ |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2313 | static void b43legacy_periodic_work_handler(struct work_struct *work) |
| 2314 | { |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 2315 | struct b43legacy_wldev *dev = container_of(work, struct b43legacy_wldev, |
| 2316 | periodic_work.work); |
| 2317 | struct b43legacy_wl *wl = dev->wl; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2318 | unsigned long delay; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2319 | |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 2320 | mutex_lock(&wl->mutex); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2321 | |
| 2322 | if (unlikely(b43legacy_status(dev) != B43legacy_STAT_STARTED)) |
| 2323 | goto out; |
| 2324 | if (b43legacy_debug(dev, B43legacy_DBG_PWORK_STOP)) |
| 2325 | goto out_requeue; |
| 2326 | |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 2327 | do_periodic_work(dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2328 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2329 | dev->periodic_state++; |
| 2330 | out_requeue: |
| 2331 | if (b43legacy_debug(dev, B43legacy_DBG_PWORK_FAST)) |
| 2332 | delay = msecs_to_jiffies(50); |
| 2333 | else |
Larry Finger | 6be5083 | 2007-10-10 22:48:17 -0500 | [diff] [blame] | 2334 | delay = round_jiffies_relative(HZ * 15); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 2335 | ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2336 | out: |
Larry Finger | f34eb69 | 2007-10-11 00:05:57 -0500 | [diff] [blame] | 2337 | mutex_unlock(&wl->mutex); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2338 | } |
| 2339 | |
| 2340 | static void b43legacy_periodic_tasks_setup(struct b43legacy_wldev *dev) |
| 2341 | { |
| 2342 | struct delayed_work *work = &dev->periodic_work; |
| 2343 | |
| 2344 | dev->periodic_state = 0; |
| 2345 | INIT_DELAYED_WORK(work, b43legacy_periodic_work_handler); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 2346 | ieee80211_queue_delayed_work(dev->wl->hw, work, 0); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2347 | } |
| 2348 | |
| 2349 | /* Validate access to the chip (SHM) */ |
| 2350 | static int b43legacy_validate_chipaccess(struct b43legacy_wldev *dev) |
| 2351 | { |
| 2352 | u32 value; |
| 2353 | u32 shm_backup; |
| 2354 | |
| 2355 | shm_backup = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0); |
| 2356 | b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0xAA5555AA); |
| 2357 | if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) != |
| 2358 | 0xAA5555AA) |
| 2359 | goto error; |
| 2360 | b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0x55AAAA55); |
| 2361 | if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) != |
| 2362 | 0x55AAAA55) |
| 2363 | goto error; |
| 2364 | b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, shm_backup); |
| 2365 | |
| 2366 | value = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 2367 | if ((value | B43legacy_MACCTL_GMODE) != |
| 2368 | (B43legacy_MACCTL_GMODE | B43legacy_MACCTL_IHR_ENABLED)) |
| 2369 | goto error; |
| 2370 | |
| 2371 | value = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON); |
| 2372 | if (value) |
| 2373 | goto error; |
| 2374 | |
| 2375 | return 0; |
| 2376 | error: |
| 2377 | b43legacyerr(dev->wl, "Failed to validate the chipaccess\n"); |
| 2378 | return -ENODEV; |
| 2379 | } |
| 2380 | |
| 2381 | static void b43legacy_security_init(struct b43legacy_wldev *dev) |
| 2382 | { |
| 2383 | dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20; |
| 2384 | B43legacy_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key)); |
| 2385 | dev->ktp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 2386 | 0x0056); |
| 2387 | /* KTP is a word address, but we address SHM bytewise. |
| 2388 | * So multiply by two. |
| 2389 | */ |
| 2390 | dev->ktp *= 2; |
| 2391 | if (dev->dev->id.revision >= 5) |
| 2392 | /* Number of RCMTA address slots */ |
| 2393 | b43legacy_write16(dev, B43legacy_MMIO_RCMTA_COUNT, |
| 2394 | dev->max_nr_keys - 8); |
| 2395 | } |
| 2396 | |
Larry Finger | 910cfee | 2009-04-01 10:42:36 -0500 | [diff] [blame] | 2397 | #ifdef CONFIG_B43LEGACY_HWRNG |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2398 | static int b43legacy_rng_read(struct hwrng *rng, u32 *data) |
| 2399 | { |
| 2400 | struct b43legacy_wl *wl = (struct b43legacy_wl *)rng->priv; |
| 2401 | unsigned long flags; |
| 2402 | |
| 2403 | /* Don't take wl->mutex here, as it could deadlock with |
| 2404 | * hwrng internal locking. It's not needed to take |
| 2405 | * wl->mutex here, anyway. */ |
| 2406 | |
| 2407 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 2408 | *data = b43legacy_read16(wl->current_dev, B43legacy_MMIO_RNG); |
| 2409 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2410 | |
| 2411 | return (sizeof(u16)); |
| 2412 | } |
Larry Finger | 910cfee | 2009-04-01 10:42:36 -0500 | [diff] [blame] | 2413 | #endif |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2414 | |
| 2415 | static void b43legacy_rng_exit(struct b43legacy_wl *wl) |
| 2416 | { |
Larry Finger | 910cfee | 2009-04-01 10:42:36 -0500 | [diff] [blame] | 2417 | #ifdef CONFIG_B43LEGACY_HWRNG |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2418 | if (wl->rng_initialized) |
| 2419 | hwrng_unregister(&wl->rng); |
Larry Finger | 910cfee | 2009-04-01 10:42:36 -0500 | [diff] [blame] | 2420 | #endif |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2421 | } |
| 2422 | |
| 2423 | static int b43legacy_rng_init(struct b43legacy_wl *wl) |
| 2424 | { |
Larry Finger | 910cfee | 2009-04-01 10:42:36 -0500 | [diff] [blame] | 2425 | int err = 0; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2426 | |
Larry Finger | 910cfee | 2009-04-01 10:42:36 -0500 | [diff] [blame] | 2427 | #ifdef CONFIG_B43LEGACY_HWRNG |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2428 | snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), |
| 2429 | "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); |
| 2430 | wl->rng.name = wl->rng_name; |
| 2431 | wl->rng.data_read = b43legacy_rng_read; |
| 2432 | wl->rng.priv = (unsigned long)wl; |
| 2433 | wl->rng_initialized = 1; |
| 2434 | err = hwrng_register(&wl->rng); |
| 2435 | if (err) { |
| 2436 | wl->rng_initialized = 0; |
| 2437 | b43legacyerr(wl, "Failed to register the random " |
| 2438 | "number generator (%d)\n", err); |
| 2439 | } |
| 2440 | |
Larry Finger | 910cfee | 2009-04-01 10:42:36 -0500 | [diff] [blame] | 2441 | #endif |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2442 | return err; |
| 2443 | } |
| 2444 | |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 2445 | static int b43legacy_op_tx(struct ieee80211_hw *hw, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 2446 | struct sk_buff *skb) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2447 | { |
| 2448 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
| 2449 | struct b43legacy_wldev *dev = wl->current_dev; |
| 2450 | int err = -ENODEV; |
| 2451 | unsigned long flags; |
| 2452 | |
| 2453 | if (unlikely(!dev)) |
| 2454 | goto out; |
| 2455 | if (unlikely(b43legacy_status(dev) < B43legacy_STAT_STARTED)) |
| 2456 | goto out; |
| 2457 | /* DMA-TX is done without a global lock. */ |
| 2458 | if (b43legacy_using_pio(dev)) { |
| 2459 | spin_lock_irqsave(&wl->irq_lock, flags); |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 2460 | err = b43legacy_pio_tx(dev, skb); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2461 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2462 | } else |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 2463 | err = b43legacy_dma_tx(dev, skb); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2464 | out: |
Michael Buesch | 664f200 | 2008-06-15 15:27:49 +0200 | [diff] [blame] | 2465 | if (unlikely(err)) { |
| 2466 | /* Drop the packet. */ |
| 2467 | dev_kfree_skb_any(skb); |
| 2468 | } |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2469 | return NETDEV_TX_OK; |
| 2470 | } |
| 2471 | |
Johannes Berg | e100bb6 | 2008-04-30 18:51:21 +0200 | [diff] [blame] | 2472 | static int b43legacy_op_conf_tx(struct ieee80211_hw *hw, u16 queue, |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 2473 | const struct ieee80211_tx_queue_params *params) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2474 | { |
| 2475 | return 0; |
| 2476 | } |
| 2477 | |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 2478 | static int b43legacy_op_get_stats(struct ieee80211_hw *hw, |
| 2479 | struct ieee80211_low_level_stats *stats) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2480 | { |
| 2481 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
| 2482 | unsigned long flags; |
| 2483 | |
| 2484 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 2485 | memcpy(stats, &wl->ieee_stats, sizeof(*stats)); |
| 2486 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2487 | |
| 2488 | return 0; |
| 2489 | } |
| 2490 | |
| 2491 | static const char *phymode_to_string(unsigned int phymode) |
| 2492 | { |
| 2493 | switch (phymode) { |
| 2494 | case B43legacy_PHYMODE_B: |
| 2495 | return "B"; |
| 2496 | case B43legacy_PHYMODE_G: |
| 2497 | return "G"; |
| 2498 | default: |
| 2499 | B43legacy_BUG_ON(1); |
| 2500 | } |
| 2501 | return ""; |
| 2502 | } |
| 2503 | |
| 2504 | static int find_wldev_for_phymode(struct b43legacy_wl *wl, |
| 2505 | unsigned int phymode, |
| 2506 | struct b43legacy_wldev **dev, |
| 2507 | bool *gmode) |
| 2508 | { |
| 2509 | struct b43legacy_wldev *d; |
| 2510 | |
| 2511 | list_for_each_entry(d, &wl->devlist, list) { |
| 2512 | if (d->phy.possible_phymodes & phymode) { |
| 2513 | /* Ok, this device supports the PHY-mode. |
| 2514 | * Set the gmode bit. */ |
| 2515 | *gmode = 1; |
| 2516 | *dev = d; |
| 2517 | |
| 2518 | return 0; |
| 2519 | } |
| 2520 | } |
| 2521 | |
| 2522 | return -ESRCH; |
| 2523 | } |
| 2524 | |
| 2525 | static void b43legacy_put_phy_into_reset(struct b43legacy_wldev *dev) |
| 2526 | { |
| 2527 | struct ssb_device *sdev = dev->dev; |
| 2528 | u32 tmslow; |
| 2529 | |
| 2530 | tmslow = ssb_read32(sdev, SSB_TMSLOW); |
| 2531 | tmslow &= ~B43legacy_TMSLOW_GMODE; |
| 2532 | tmslow |= B43legacy_TMSLOW_PHYRESET; |
| 2533 | tmslow |= SSB_TMSLOW_FGC; |
| 2534 | ssb_write32(sdev, SSB_TMSLOW, tmslow); |
| 2535 | msleep(1); |
| 2536 | |
| 2537 | tmslow = ssb_read32(sdev, SSB_TMSLOW); |
| 2538 | tmslow &= ~SSB_TMSLOW_FGC; |
| 2539 | tmslow |= B43legacy_TMSLOW_PHYRESET; |
| 2540 | ssb_write32(sdev, SSB_TMSLOW, tmslow); |
| 2541 | msleep(1); |
| 2542 | } |
| 2543 | |
| 2544 | /* Expects wl->mutex locked */ |
| 2545 | static int b43legacy_switch_phymode(struct b43legacy_wl *wl, |
| 2546 | unsigned int new_mode) |
| 2547 | { |
John W. Linville | 08cb7e0 | 2009-01-12 14:43:18 -0500 | [diff] [blame] | 2548 | struct b43legacy_wldev *uninitialized_var(up_dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2549 | struct b43legacy_wldev *down_dev; |
| 2550 | int err; |
| 2551 | bool gmode = 0; |
| 2552 | int prev_status; |
| 2553 | |
| 2554 | err = find_wldev_for_phymode(wl, new_mode, &up_dev, &gmode); |
| 2555 | if (err) { |
| 2556 | b43legacyerr(wl, "Could not find a device for %s-PHY mode\n", |
| 2557 | phymode_to_string(new_mode)); |
| 2558 | return err; |
| 2559 | } |
| 2560 | if ((up_dev == wl->current_dev) && |
| 2561 | (!!wl->current_dev->phy.gmode == !!gmode)) |
| 2562 | /* This device is already running. */ |
| 2563 | return 0; |
| 2564 | b43legacydbg(wl, "Reconfiguring PHYmode to %s-PHY\n", |
| 2565 | phymode_to_string(new_mode)); |
| 2566 | down_dev = wl->current_dev; |
| 2567 | |
| 2568 | prev_status = b43legacy_status(down_dev); |
| 2569 | /* Shutdown the currently running core. */ |
| 2570 | if (prev_status >= B43legacy_STAT_STARTED) |
| 2571 | b43legacy_wireless_core_stop(down_dev); |
| 2572 | if (prev_status >= B43legacy_STAT_INITIALIZED) |
| 2573 | b43legacy_wireless_core_exit(down_dev); |
| 2574 | |
| 2575 | if (down_dev != up_dev) |
| 2576 | /* We switch to a different core, so we put PHY into |
| 2577 | * RESET on the old core. */ |
| 2578 | b43legacy_put_phy_into_reset(down_dev); |
| 2579 | |
| 2580 | /* Now start the new core. */ |
| 2581 | up_dev->phy.gmode = gmode; |
| 2582 | if (prev_status >= B43legacy_STAT_INITIALIZED) { |
| 2583 | err = b43legacy_wireless_core_init(up_dev); |
| 2584 | if (err) { |
| 2585 | b43legacyerr(wl, "Fatal: Could not initialize device" |
| 2586 | " for newly selected %s-PHY mode\n", |
| 2587 | phymode_to_string(new_mode)); |
| 2588 | goto init_failure; |
| 2589 | } |
| 2590 | } |
| 2591 | if (prev_status >= B43legacy_STAT_STARTED) { |
| 2592 | err = b43legacy_wireless_core_start(up_dev); |
| 2593 | if (err) { |
| 2594 | b43legacyerr(wl, "Fatal: Coult not start device for " |
| 2595 | "newly selected %s-PHY mode\n", |
| 2596 | phymode_to_string(new_mode)); |
| 2597 | b43legacy_wireless_core_exit(up_dev); |
| 2598 | goto init_failure; |
| 2599 | } |
| 2600 | } |
| 2601 | B43legacy_WARN_ON(b43legacy_status(up_dev) != prev_status); |
| 2602 | |
| 2603 | b43legacy_shm_write32(up_dev, B43legacy_SHM_SHARED, 0x003E, 0); |
| 2604 | |
| 2605 | wl->current_dev = up_dev; |
| 2606 | |
| 2607 | return 0; |
| 2608 | init_failure: |
| 2609 | /* Whoops, failed to init the new core. No core is operating now. */ |
| 2610 | wl->current_dev = NULL; |
| 2611 | return err; |
| 2612 | } |
| 2613 | |
Johannes Berg | 9124b07 | 2008-10-14 19:17:54 +0200 | [diff] [blame] | 2614 | /* Write the short and long frame retry limit values. */ |
| 2615 | static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev, |
| 2616 | unsigned int short_retry, |
| 2617 | unsigned int long_retry) |
| 2618 | { |
| 2619 | /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing |
| 2620 | * the chip-internal counter. */ |
| 2621 | short_retry = min(short_retry, (unsigned int)0xF); |
| 2622 | long_retry = min(long_retry, (unsigned int)0xF); |
| 2623 | |
| 2624 | b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry); |
| 2625 | b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry); |
| 2626 | } |
| 2627 | |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 2628 | static int b43legacy_op_dev_config(struct ieee80211_hw *hw, |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 2629 | u32 changed) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2630 | { |
| 2631 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
| 2632 | struct b43legacy_wldev *dev; |
| 2633 | struct b43legacy_phy *phy; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 2634 | struct ieee80211_conf *conf = &hw->conf; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2635 | unsigned long flags; |
| 2636 | unsigned int new_phymode = 0xFFFF; |
| 2637 | int antenna_tx; |
| 2638 | int antenna_rx; |
| 2639 | int err = 0; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2640 | |
Johannes Berg | 0f4ac38 | 2008-10-09 12:18:04 +0200 | [diff] [blame] | 2641 | antenna_tx = B43legacy_ANTENNA_DEFAULT; |
| 2642 | antenna_rx = B43legacy_ANTENNA_DEFAULT; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2643 | |
| 2644 | mutex_lock(&wl->mutex); |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 2645 | dev = wl->current_dev; |
| 2646 | phy = &dev->phy; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2647 | |
Johannes Berg | 9124b07 | 2008-10-14 19:17:54 +0200 | [diff] [blame] | 2648 | if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) |
| 2649 | b43legacy_set_retry_limits(dev, |
| 2650 | conf->short_frame_max_tx_count, |
| 2651 | conf->long_frame_max_tx_count); |
| 2652 | changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; |
| 2653 | if (!changed) |
| 2654 | goto out_unlock_mutex; |
| 2655 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2656 | /* Switch the PHY mode (if necessary). */ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 2657 | switch (conf->channel->band) { |
| 2658 | case IEEE80211_BAND_2GHZ: |
| 2659 | if (phy->type == B43legacy_PHYTYPE_B) |
| 2660 | new_phymode = B43legacy_PHYMODE_B; |
| 2661 | else |
| 2662 | new_phymode = B43legacy_PHYMODE_G; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2663 | break; |
| 2664 | default: |
| 2665 | B43legacy_WARN_ON(1); |
| 2666 | } |
| 2667 | err = b43legacy_switch_phymode(wl, new_phymode); |
| 2668 | if (err) |
| 2669 | goto out_unlock_mutex; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2670 | |
| 2671 | /* Disable IRQs while reconfiguring the device. |
| 2672 | * This makes it possible to drop the spinlock throughout |
| 2673 | * the reconfiguration process. */ |
| 2674 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 2675 | if (b43legacy_status(dev) < B43legacy_STAT_STARTED) { |
| 2676 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2677 | goto out_unlock_mutex; |
| 2678 | } |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 2679 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2680 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2681 | b43legacy_synchronize_irq(dev); |
| 2682 | |
| 2683 | /* Switch to the requested channel. |
| 2684 | * The firmware takes care of races with the TX handler. */ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 2685 | if (conf->channel->hw_value != phy->channel) |
| 2686 | b43legacy_radio_selectchannel(dev, conf->channel->hw_value, 0); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2687 | |
Johannes Berg | 0869aea | 2009-10-28 10:03:35 +0100 | [diff] [blame] | 2688 | dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR); |
Johannes Berg | 5be3bda | 2007-11-24 21:11:09 +0100 | [diff] [blame] | 2689 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2690 | /* Adjust the desired TX power level. */ |
| 2691 | if (conf->power_level != 0) { |
| 2692 | if (conf->power_level != phy->power_level) { |
| 2693 | phy->power_level = conf->power_level; |
| 2694 | b43legacy_phy_xmitpower(dev); |
| 2695 | } |
| 2696 | } |
| 2697 | |
| 2698 | /* Antennas for RX and management frame TX. */ |
| 2699 | b43legacy_mgmtframe_txantenna(dev, antenna_tx); |
| 2700 | |
Larry Finger | fd4973c | 2009-06-20 12:58:11 -0500 | [diff] [blame] | 2701 | if (wl->radio_enabled != phy->radio_on) { |
| 2702 | if (wl->radio_enabled) { |
Larry Finger | 42a9174 | 2007-09-20 21:11:02 -0500 | [diff] [blame] | 2703 | b43legacy_radio_turn_on(dev); |
| 2704 | b43legacyinfo(dev->wl, "Radio turned on by software\n"); |
| 2705 | if (!dev->radio_hw_enable) |
| 2706 | b43legacyinfo(dev->wl, "The hardware RF-kill" |
| 2707 | " button still turns the radio" |
| 2708 | " physically off. Press the" |
| 2709 | " button to turn it on.\n"); |
| 2710 | } else { |
Larry Finger | 93bb7f3 | 2007-10-10 22:44:22 -0500 | [diff] [blame] | 2711 | b43legacy_radio_turn_off(dev, 0); |
Larry Finger | 42a9174 | 2007-09-20 21:11:02 -0500 | [diff] [blame] | 2712 | b43legacyinfo(dev->wl, "Radio turned off by" |
| 2713 | " software\n"); |
| 2714 | } |
| 2715 | } |
| 2716 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2717 | spin_lock_irqsave(&wl->irq_lock, flags); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 2718 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2719 | mmiowb(); |
| 2720 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2721 | out_unlock_mutex: |
| 2722 | mutex_unlock(&wl->mutex); |
| 2723 | |
| 2724 | return err; |
| 2725 | } |
| 2726 | |
Johannes Berg | 881d948 | 2009-01-21 15:13:48 +0100 | [diff] [blame] | 2727 | static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u32 brates) |
Johannes Berg | 7f3704e | 2008-11-06 15:18:11 +0100 | [diff] [blame] | 2728 | { |
| 2729 | struct ieee80211_supported_band *sband = |
| 2730 | dev->wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ]; |
| 2731 | struct ieee80211_rate *rate; |
| 2732 | int i; |
| 2733 | u16 basic, direct, offset, basic_offset, rateptr; |
| 2734 | |
| 2735 | for (i = 0; i < sband->n_bitrates; i++) { |
| 2736 | rate = &sband->bitrates[i]; |
| 2737 | |
| 2738 | if (b43legacy_is_cck_rate(rate->hw_value)) { |
| 2739 | direct = B43legacy_SHM_SH_CCKDIRECT; |
| 2740 | basic = B43legacy_SHM_SH_CCKBASIC; |
| 2741 | offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value); |
| 2742 | offset &= 0xF; |
| 2743 | } else { |
| 2744 | direct = B43legacy_SHM_SH_OFDMDIRECT; |
| 2745 | basic = B43legacy_SHM_SH_OFDMBASIC; |
| 2746 | offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value); |
| 2747 | offset &= 0xF; |
| 2748 | } |
| 2749 | |
| 2750 | rate = ieee80211_get_response_rate(sband, brates, rate->bitrate); |
| 2751 | |
| 2752 | if (b43legacy_is_cck_rate(rate->hw_value)) { |
| 2753 | basic_offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value); |
| 2754 | basic_offset &= 0xF; |
| 2755 | } else { |
| 2756 | basic_offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value); |
| 2757 | basic_offset &= 0xF; |
| 2758 | } |
| 2759 | |
| 2760 | /* |
| 2761 | * Get the pointer that we need to point to |
| 2762 | * from the direct map |
| 2763 | */ |
| 2764 | rateptr = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, |
| 2765 | direct + 2 * basic_offset); |
| 2766 | /* and write it to the basic map */ |
| 2767 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 2768 | basic + 2 * offset, rateptr); |
| 2769 | } |
| 2770 | } |
| 2771 | |
| 2772 | static void b43legacy_op_bss_info_changed(struct ieee80211_hw *hw, |
| 2773 | struct ieee80211_vif *vif, |
| 2774 | struct ieee80211_bss_conf *conf, |
| 2775 | u32 changed) |
| 2776 | { |
| 2777 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
| 2778 | struct b43legacy_wldev *dev; |
| 2779 | struct b43legacy_phy *phy; |
| 2780 | unsigned long flags; |
Johannes Berg | 7f3704e | 2008-11-06 15:18:11 +0100 | [diff] [blame] | 2781 | |
| 2782 | mutex_lock(&wl->mutex); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2783 | B43legacy_WARN_ON(wl->vif != vif); |
Johannes Berg | 7f3704e | 2008-11-06 15:18:11 +0100 | [diff] [blame] | 2784 | |
| 2785 | dev = wl->current_dev; |
| 2786 | phy = &dev->phy; |
| 2787 | |
| 2788 | /* Disable IRQs while reconfiguring the device. |
| 2789 | * This makes it possible to drop the spinlock throughout |
| 2790 | * the reconfiguration process. */ |
| 2791 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 2792 | if (b43legacy_status(dev) < B43legacy_STAT_STARTED) { |
| 2793 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2794 | goto out_unlock_mutex; |
| 2795 | } |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 2796 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2797 | |
| 2798 | if (changed & BSS_CHANGED_BSSID) { |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2799 | b43legacy_synchronize_irq(dev); |
| 2800 | |
| 2801 | if (conf->bssid) |
| 2802 | memcpy(wl->bssid, conf->bssid, ETH_ALEN); |
| 2803 | else |
| 2804 | memset(wl->bssid, 0, ETH_ALEN); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2805 | } |
Johannes Berg | 7f3704e | 2008-11-06 15:18:11 +0100 | [diff] [blame] | 2806 | |
Johannes Berg | 3f0d843 | 2009-05-18 10:53:18 +0200 | [diff] [blame] | 2807 | if (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED) { |
| 2808 | if (changed & BSS_CHANGED_BEACON && |
| 2809 | (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) || |
| 2810 | b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC))) |
| 2811 | b43legacy_update_templates(wl); |
| 2812 | |
| 2813 | if (changed & BSS_CHANGED_BSSID) |
| 2814 | b43legacy_write_mac_bssid_templates(dev); |
| 2815 | } |
| 2816 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2817 | |
Johannes Berg | 7f3704e | 2008-11-06 15:18:11 +0100 | [diff] [blame] | 2818 | b43legacy_mac_suspend(dev); |
| 2819 | |
Johannes Berg | 57c4d7b | 2009-04-23 16:10:04 +0200 | [diff] [blame] | 2820 | if (changed & BSS_CHANGED_BEACON_INT && |
| 2821 | (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) || |
| 2822 | b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC))) |
| 2823 | b43legacy_set_beacon_int(dev, conf->beacon_int); |
| 2824 | |
Johannes Berg | 7f3704e | 2008-11-06 15:18:11 +0100 | [diff] [blame] | 2825 | if (changed & BSS_CHANGED_BASIC_RATES) |
| 2826 | b43legacy_update_basic_rates(dev, conf->basic_rates); |
| 2827 | |
| 2828 | if (changed & BSS_CHANGED_ERP_SLOT) { |
| 2829 | if (conf->use_short_slot) |
| 2830 | b43legacy_short_slot_timing_enable(dev); |
| 2831 | else |
| 2832 | b43legacy_short_slot_timing_disable(dev); |
| 2833 | } |
| 2834 | |
| 2835 | b43legacy_mac_enable(dev); |
| 2836 | |
| 2837 | spin_lock_irqsave(&wl->irq_lock, flags); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 2838 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
Johannes Berg | 7f3704e | 2008-11-06 15:18:11 +0100 | [diff] [blame] | 2839 | /* XXX: why? */ |
| 2840 | mmiowb(); |
| 2841 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2842 | out_unlock_mutex: |
| 2843 | mutex_unlock(&wl->mutex); |
Johannes Berg | 7f3704e | 2008-11-06 15:18:11 +0100 | [diff] [blame] | 2844 | } |
| 2845 | |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 2846 | static void b43legacy_op_configure_filter(struct ieee80211_hw *hw, |
| 2847 | unsigned int changed, |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 2848 | unsigned int *fflags,u64 multicast) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2849 | { |
| 2850 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
| 2851 | struct b43legacy_wldev *dev = wl->current_dev; |
| 2852 | unsigned long flags; |
| 2853 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2854 | if (!dev) { |
| 2855 | *fflags = 0; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2856 | return; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2857 | } |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2858 | |
| 2859 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 2860 | *fflags &= FIF_PROMISC_IN_BSS | |
| 2861 | FIF_ALLMULTI | |
| 2862 | FIF_FCSFAIL | |
| 2863 | FIF_PLCPFAIL | |
| 2864 | FIF_CONTROL | |
| 2865 | FIF_OTHER_BSS | |
| 2866 | FIF_BCN_PRBRESP_PROMISC; |
| 2867 | |
| 2868 | changed &= FIF_PROMISC_IN_BSS | |
| 2869 | FIF_ALLMULTI | |
| 2870 | FIF_FCSFAIL | |
| 2871 | FIF_PLCPFAIL | |
| 2872 | FIF_CONTROL | |
| 2873 | FIF_OTHER_BSS | |
| 2874 | FIF_BCN_PRBRESP_PROMISC; |
| 2875 | |
| 2876 | wl->filter_flags = *fflags; |
| 2877 | |
| 2878 | if (changed && b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED) |
| 2879 | b43legacy_adjust_opmode(dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2880 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2881 | } |
| 2882 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2883 | /* Locking: wl->mutex */ |
| 2884 | static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev) |
| 2885 | { |
| 2886 | struct b43legacy_wl *wl = dev->wl; |
| 2887 | unsigned long flags; |
| 2888 | |
| 2889 | if (b43legacy_status(dev) < B43legacy_STAT_STARTED) |
| 2890 | return; |
Stefano Brivio | 440cb58 | 2007-11-07 18:33:37 +0100 | [diff] [blame] | 2891 | |
| 2892 | /* Disable and sync interrupts. We must do this before than |
| 2893 | * setting the status to INITIALIZED, as the interrupt handler |
| 2894 | * won't care about IRQs then. */ |
| 2895 | spin_lock_irqsave(&wl->irq_lock, flags); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 2896 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0); |
Stefano Brivio | 440cb58 | 2007-11-07 18:33:37 +0100 | [diff] [blame] | 2897 | b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_MASK); /* flush */ |
| 2898 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2899 | b43legacy_synchronize_irq(dev); |
| 2900 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2901 | b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED); |
| 2902 | |
| 2903 | mutex_unlock(&wl->mutex); |
| 2904 | /* Must unlock as it would otherwise deadlock. No races here. |
| 2905 | * Cancel the possibly running self-rearming periodic work. */ |
| 2906 | cancel_delayed_work_sync(&dev->periodic_work); |
| 2907 | mutex_lock(&wl->mutex); |
| 2908 | |
| 2909 | ieee80211_stop_queues(wl->hw); /* FIXME this could cause a deadlock */ |
| 2910 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2911 | b43legacy_mac_suspend(dev); |
| 2912 | free_irq(dev->dev->irq, dev); |
| 2913 | b43legacydbg(wl, "Wireless interface stopped\n"); |
| 2914 | } |
| 2915 | |
| 2916 | /* Locking: wl->mutex */ |
| 2917 | static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev) |
| 2918 | { |
| 2919 | int err; |
| 2920 | |
| 2921 | B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_INITIALIZED); |
| 2922 | |
| 2923 | drain_txstatus_queue(dev); |
| 2924 | err = request_irq(dev->dev->irq, b43legacy_interrupt_handler, |
| 2925 | IRQF_SHARED, KBUILD_MODNAME, dev); |
| 2926 | if (err) { |
| 2927 | b43legacyerr(dev->wl, "Cannot request IRQ-%d\n", |
| 2928 | dev->dev->irq); |
| 2929 | goto out; |
| 2930 | } |
| 2931 | /* We are ready to run. */ |
Larry Finger | 0866b03 | 2010-02-03 13:33:44 -0600 | [diff] [blame] | 2932 | ieee80211_wake_queues(dev->wl->hw); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2933 | b43legacy_set_status(dev, B43legacy_STAT_STARTED); |
| 2934 | |
| 2935 | /* Start data flow (TX/RX) */ |
| 2936 | b43legacy_mac_enable(dev); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 2937 | b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 2938 | |
| 2939 | /* Start maintenance work */ |
| 2940 | b43legacy_periodic_tasks_setup(dev); |
| 2941 | |
| 2942 | b43legacydbg(dev->wl, "Wireless interface started\n"); |
| 2943 | out: |
| 2944 | return err; |
| 2945 | } |
| 2946 | |
| 2947 | /* Get PHY and RADIO versioning numbers */ |
| 2948 | static int b43legacy_phy_versioning(struct b43legacy_wldev *dev) |
| 2949 | { |
| 2950 | struct b43legacy_phy *phy = &dev->phy; |
| 2951 | u32 tmp; |
| 2952 | u8 analog_type; |
| 2953 | u8 phy_type; |
| 2954 | u8 phy_rev; |
| 2955 | u16 radio_manuf; |
| 2956 | u16 radio_ver; |
| 2957 | u16 radio_rev; |
| 2958 | int unsupported = 0; |
| 2959 | |
| 2960 | /* Get PHY versioning */ |
| 2961 | tmp = b43legacy_read16(dev, B43legacy_MMIO_PHY_VER); |
| 2962 | analog_type = (tmp & B43legacy_PHYVER_ANALOG) |
| 2963 | >> B43legacy_PHYVER_ANALOG_SHIFT; |
| 2964 | phy_type = (tmp & B43legacy_PHYVER_TYPE) >> B43legacy_PHYVER_TYPE_SHIFT; |
| 2965 | phy_rev = (tmp & B43legacy_PHYVER_VERSION); |
| 2966 | switch (phy_type) { |
| 2967 | case B43legacy_PHYTYPE_B: |
| 2968 | if (phy_rev != 2 && phy_rev != 4 |
| 2969 | && phy_rev != 6 && phy_rev != 7) |
| 2970 | unsupported = 1; |
| 2971 | break; |
| 2972 | case B43legacy_PHYTYPE_G: |
| 2973 | if (phy_rev > 8) |
| 2974 | unsupported = 1; |
| 2975 | break; |
| 2976 | default: |
| 2977 | unsupported = 1; |
| 2978 | }; |
| 2979 | if (unsupported) { |
| 2980 | b43legacyerr(dev->wl, "FOUND UNSUPPORTED PHY " |
| 2981 | "(Analog %u, Type %u, Revision %u)\n", |
| 2982 | analog_type, phy_type, phy_rev); |
| 2983 | return -EOPNOTSUPP; |
| 2984 | } |
| 2985 | b43legacydbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n", |
| 2986 | analog_type, phy_type, phy_rev); |
| 2987 | |
| 2988 | |
| 2989 | /* Get RADIO versioning */ |
| 2990 | if (dev->dev->bus->chip_id == 0x4317) { |
| 2991 | if (dev->dev->bus->chip_rev == 0) |
| 2992 | tmp = 0x3205017F; |
| 2993 | else if (dev->dev->bus->chip_rev == 1) |
| 2994 | tmp = 0x4205017F; |
| 2995 | else |
| 2996 | tmp = 0x5205017F; |
| 2997 | } else { |
| 2998 | b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, |
| 2999 | B43legacy_RADIOCTL_ID); |
| 3000 | tmp = b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_HIGH); |
| 3001 | tmp <<= 16; |
| 3002 | b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL, |
| 3003 | B43legacy_RADIOCTL_ID); |
| 3004 | tmp |= b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW); |
| 3005 | } |
| 3006 | radio_manuf = (tmp & 0x00000FFF); |
| 3007 | radio_ver = (tmp & 0x0FFFF000) >> 12; |
| 3008 | radio_rev = (tmp & 0xF0000000) >> 28; |
| 3009 | switch (phy_type) { |
| 3010 | case B43legacy_PHYTYPE_B: |
| 3011 | if ((radio_ver & 0xFFF0) != 0x2050) |
| 3012 | unsupported = 1; |
| 3013 | break; |
| 3014 | case B43legacy_PHYTYPE_G: |
| 3015 | if (radio_ver != 0x2050) |
| 3016 | unsupported = 1; |
| 3017 | break; |
| 3018 | default: |
| 3019 | B43legacy_BUG_ON(1); |
| 3020 | } |
| 3021 | if (unsupported) { |
| 3022 | b43legacyerr(dev->wl, "FOUND UNSUPPORTED RADIO " |
| 3023 | "(Manuf 0x%X, Version 0x%X, Revision %u)\n", |
| 3024 | radio_manuf, radio_ver, radio_rev); |
| 3025 | return -EOPNOTSUPP; |
| 3026 | } |
| 3027 | b43legacydbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X," |
| 3028 | " Revision %u\n", radio_manuf, radio_ver, radio_rev); |
| 3029 | |
| 3030 | |
| 3031 | phy->radio_manuf = radio_manuf; |
| 3032 | phy->radio_ver = radio_ver; |
| 3033 | phy->radio_rev = radio_rev; |
| 3034 | |
| 3035 | phy->analog = analog_type; |
| 3036 | phy->type = phy_type; |
| 3037 | phy->rev = phy_rev; |
| 3038 | |
| 3039 | return 0; |
| 3040 | } |
| 3041 | |
| 3042 | static void setup_struct_phy_for_init(struct b43legacy_wldev *dev, |
| 3043 | struct b43legacy_phy *phy) |
| 3044 | { |
| 3045 | struct b43legacy_lopair *lo; |
| 3046 | int i; |
| 3047 | |
| 3048 | memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig)); |
| 3049 | memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos)); |
| 3050 | |
Larry Finger | 1065de1 | 2007-09-20 20:10:07 -0500 | [diff] [blame] | 3051 | /* Assume the radio is enabled. If it's not enabled, the state will |
| 3052 | * immediately get fixed on the first periodic work run. */ |
| 3053 | dev->radio_hw_enable = 1; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3054 | |
| 3055 | phy->savedpctlreg = 0xFFFF; |
| 3056 | phy->aci_enable = 0; |
| 3057 | phy->aci_wlan_automatic = 0; |
| 3058 | phy->aci_hw_rssi = 0; |
| 3059 | |
| 3060 | lo = phy->_lo_pairs; |
| 3061 | if (lo) |
| 3062 | memset(lo, 0, sizeof(struct b43legacy_lopair) * |
| 3063 | B43legacy_LO_COUNT); |
| 3064 | phy->max_lb_gain = 0; |
| 3065 | phy->trsw_rx_gain = 0; |
| 3066 | |
| 3067 | /* Set default attenuation values. */ |
| 3068 | phy->bbatt = b43legacy_default_baseband_attenuation(dev); |
| 3069 | phy->rfatt = b43legacy_default_radio_attenuation(dev); |
| 3070 | phy->txctl1 = b43legacy_default_txctl1(dev); |
| 3071 | phy->txpwr_offset = 0; |
| 3072 | |
| 3073 | /* NRSSI */ |
| 3074 | phy->nrssislope = 0; |
| 3075 | for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++) |
| 3076 | phy->nrssi[i] = -1000; |
| 3077 | for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++) |
| 3078 | phy->nrssi_lt[i] = i; |
| 3079 | |
| 3080 | phy->lofcal = 0xFFFF; |
| 3081 | phy->initval = 0xFFFF; |
| 3082 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3083 | phy->interfmode = B43legacy_INTERFMODE_NONE; |
| 3084 | phy->channel = 0xFF; |
| 3085 | } |
| 3086 | |
| 3087 | static void setup_struct_wldev_for_init(struct b43legacy_wldev *dev) |
| 3088 | { |
| 3089 | /* Flags */ |
Stefano Brivio | eed0fd2 | 2008-02-08 06:31:10 +0100 | [diff] [blame] | 3090 | dev->dfq_valid = 0; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3091 | |
| 3092 | /* Stats */ |
| 3093 | memset(&dev->stats, 0, sizeof(dev->stats)); |
| 3094 | |
| 3095 | setup_struct_phy_for_init(dev, &dev->phy); |
| 3096 | |
| 3097 | /* IRQ related flags */ |
| 3098 | dev->irq_reason = 0; |
| 3099 | memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); |
Stefano Brivio | 44710bb | 2009-05-15 15:39:20 -0500 | [diff] [blame] | 3100 | dev->irq_mask = B43legacy_IRQ_MASKTEMPLATE; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3101 | |
| 3102 | dev->mac_suspended = 1; |
| 3103 | |
| 3104 | /* Noise calculation context */ |
| 3105 | memset(&dev->noisecalc, 0, sizeof(dev->noisecalc)); |
| 3106 | } |
| 3107 | |
| 3108 | static void b43legacy_imcfglo_timeouts_workaround(struct b43legacy_wldev *dev) |
| 3109 | { |
| 3110 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
| 3111 | struct ssb_bus *bus = dev->dev->bus; |
| 3112 | u32 tmp; |
| 3113 | |
| 3114 | if (bus->pcicore.dev && |
| 3115 | bus->pcicore.dev->id.coreid == SSB_DEV_PCI && |
| 3116 | bus->pcicore.dev->id.revision <= 5) { |
| 3117 | /* IMCFGLO timeouts workaround. */ |
| 3118 | tmp = ssb_read32(dev->dev, SSB_IMCFGLO); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3119 | switch (bus->bustype) { |
| 3120 | case SSB_BUSTYPE_PCI: |
| 3121 | case SSB_BUSTYPE_PCMCIA: |
Michael Buesch | 98a1e2a | 2009-09-08 19:33:31 +0200 | [diff] [blame] | 3122 | tmp &= ~SSB_IMCFGLO_REQTO; |
| 3123 | tmp &= ~SSB_IMCFGLO_SERTO; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3124 | tmp |= 0x32; |
| 3125 | break; |
| 3126 | case SSB_BUSTYPE_SSB: |
Michael Buesch | 98a1e2a | 2009-09-08 19:33:31 +0200 | [diff] [blame] | 3127 | tmp &= ~SSB_IMCFGLO_REQTO; |
| 3128 | tmp &= ~SSB_IMCFGLO_SERTO; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3129 | tmp |= 0x53; |
| 3130 | break; |
Michael Buesch | 98a1e2a | 2009-09-08 19:33:31 +0200 | [diff] [blame] | 3131 | default: |
| 3132 | break; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3133 | } |
| 3134 | ssb_write32(dev->dev, SSB_IMCFGLO, tmp); |
| 3135 | } |
| 3136 | #endif /* CONFIG_SSB_DRIVER_PCICORE */ |
| 3137 | } |
| 3138 | |
Stefano Brivio | 3e2c40e | 2008-04-14 00:57:03 +0200 | [diff] [blame] | 3139 | static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev, |
| 3140 | bool idle) { |
| 3141 | u16 pu_delay = 1050; |
| 3142 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 3143 | if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle) |
Stefano Brivio | 3e2c40e | 2008-04-14 00:57:03 +0200 | [diff] [blame] | 3144 | pu_delay = 500; |
| 3145 | if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8)) |
| 3146 | pu_delay = max(pu_delay, (u16)2400); |
| 3147 | |
| 3148 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 3149 | B43legacy_SHM_SH_SPUWKUP, pu_delay); |
| 3150 | } |
| 3151 | |
| 3152 | /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */ |
| 3153 | static void b43legacy_set_pretbtt(struct b43legacy_wldev *dev) |
| 3154 | { |
| 3155 | u16 pretbtt; |
| 3156 | |
| 3157 | /* The time value is in microseconds. */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 3158 | if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) |
Stefano Brivio | 3e2c40e | 2008-04-14 00:57:03 +0200 | [diff] [blame] | 3159 | pretbtt = 2; |
| 3160 | else |
| 3161 | pretbtt = 250; |
| 3162 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 3163 | B43legacy_SHM_SH_PRETBTT, pretbtt); |
| 3164 | b43legacy_write16(dev, B43legacy_MMIO_TSF_CFP_PRETBTT, pretbtt); |
| 3165 | } |
| 3166 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3167 | /* Shutdown a wireless core */ |
| 3168 | /* Locking: wl->mutex */ |
| 3169 | static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev) |
| 3170 | { |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3171 | struct b43legacy_phy *phy = &dev->phy; |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 3172 | u32 macctl; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3173 | |
| 3174 | B43legacy_WARN_ON(b43legacy_status(dev) > B43legacy_STAT_INITIALIZED); |
| 3175 | if (b43legacy_status(dev) != B43legacy_STAT_INITIALIZED) |
| 3176 | return; |
| 3177 | b43legacy_set_status(dev, B43legacy_STAT_UNINIT); |
| 3178 | |
Stefano Brivio | e78c9d2 | 2008-01-23 14:48:50 +0100 | [diff] [blame] | 3179 | /* Stop the microcode PSM. */ |
| 3180 | macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); |
| 3181 | macctl &= ~B43legacy_MACCTL_PSM_RUN; |
| 3182 | macctl |= B43legacy_MACCTL_PSM_JMP0; |
| 3183 | b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl); |
| 3184 | |
Larry Finger | 4ad36d7 | 2007-12-16 19:21:06 +0100 | [diff] [blame] | 3185 | b43legacy_leds_exit(dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3186 | b43legacy_rng_exit(dev->wl); |
| 3187 | b43legacy_pio_free(dev); |
| 3188 | b43legacy_dma_free(dev); |
| 3189 | b43legacy_chip_exit(dev); |
Larry Finger | 93bb7f3 | 2007-10-10 22:44:22 -0500 | [diff] [blame] | 3190 | b43legacy_radio_turn_off(dev, 1); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3191 | b43legacy_switch_analog(dev, 0); |
| 3192 | if (phy->dyn_tssi_tbl) |
| 3193 | kfree(phy->tssi2dbm); |
| 3194 | kfree(phy->lo_control); |
| 3195 | phy->lo_control = NULL; |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 3196 | if (dev->wl->current_beacon) { |
| 3197 | dev_kfree_skb_any(dev->wl->current_beacon); |
| 3198 | dev->wl->current_beacon = NULL; |
| 3199 | } |
| 3200 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3201 | ssb_device_disable(dev->dev, 0); |
| 3202 | ssb_bus_may_powerdown(dev->dev->bus); |
| 3203 | } |
| 3204 | |
| 3205 | static void prepare_phy_data_for_init(struct b43legacy_wldev *dev) |
| 3206 | { |
| 3207 | struct b43legacy_phy *phy = &dev->phy; |
| 3208 | int i; |
| 3209 | |
| 3210 | /* Set default attenuation values. */ |
| 3211 | phy->bbatt = b43legacy_default_baseband_attenuation(dev); |
| 3212 | phy->rfatt = b43legacy_default_radio_attenuation(dev); |
| 3213 | phy->txctl1 = b43legacy_default_txctl1(dev); |
| 3214 | phy->txctl2 = 0xFFFF; |
| 3215 | phy->txpwr_offset = 0; |
| 3216 | |
| 3217 | /* NRSSI */ |
| 3218 | phy->nrssislope = 0; |
| 3219 | for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++) |
| 3220 | phy->nrssi[i] = -1000; |
| 3221 | for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++) |
| 3222 | phy->nrssi_lt[i] = i; |
| 3223 | |
| 3224 | phy->lofcal = 0xFFFF; |
| 3225 | phy->initval = 0xFFFF; |
| 3226 | |
| 3227 | phy->aci_enable = 0; |
| 3228 | phy->aci_wlan_automatic = 0; |
| 3229 | phy->aci_hw_rssi = 0; |
| 3230 | |
| 3231 | phy->antenna_diversity = 0xFFFF; |
| 3232 | memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig)); |
| 3233 | memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos)); |
| 3234 | |
| 3235 | /* Flags */ |
| 3236 | phy->calibrated = 0; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3237 | |
| 3238 | if (phy->_lo_pairs) |
| 3239 | memset(phy->_lo_pairs, 0, |
| 3240 | sizeof(struct b43legacy_lopair) * B43legacy_LO_COUNT); |
| 3241 | memset(phy->loopback_gain, 0, sizeof(phy->loopback_gain)); |
| 3242 | } |
| 3243 | |
| 3244 | /* Initialize a wireless core */ |
| 3245 | static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev) |
| 3246 | { |
| 3247 | struct b43legacy_wl *wl = dev->wl; |
| 3248 | struct ssb_bus *bus = dev->dev->bus; |
| 3249 | struct b43legacy_phy *phy = &dev->phy; |
| 3250 | struct ssb_sprom *sprom = &dev->dev->bus->sprom; |
| 3251 | int err; |
| 3252 | u32 hf; |
| 3253 | u32 tmp; |
| 3254 | |
| 3255 | B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT); |
| 3256 | |
| 3257 | err = ssb_bus_powerup(bus, 0); |
| 3258 | if (err) |
| 3259 | goto out; |
| 3260 | if (!ssb_device_is_enabled(dev->dev)) { |
| 3261 | tmp = phy->gmode ? B43legacy_TMSLOW_GMODE : 0; |
| 3262 | b43legacy_wireless_core_reset(dev, tmp); |
| 3263 | } |
| 3264 | |
| 3265 | if ((phy->type == B43legacy_PHYTYPE_B) || |
| 3266 | (phy->type == B43legacy_PHYTYPE_G)) { |
| 3267 | phy->_lo_pairs = kzalloc(sizeof(struct b43legacy_lopair) |
| 3268 | * B43legacy_LO_COUNT, |
| 3269 | GFP_KERNEL); |
| 3270 | if (!phy->_lo_pairs) |
| 3271 | return -ENOMEM; |
| 3272 | } |
| 3273 | setup_struct_wldev_for_init(dev); |
| 3274 | |
| 3275 | err = b43legacy_phy_init_tssi2dbm_table(dev); |
| 3276 | if (err) |
| 3277 | goto err_kfree_lo_control; |
| 3278 | |
| 3279 | /* Enable IRQ routing to this device. */ |
| 3280 | ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev); |
| 3281 | |
| 3282 | b43legacy_imcfglo_timeouts_workaround(dev); |
| 3283 | prepare_phy_data_for_init(dev); |
| 3284 | b43legacy_phy_calibrate(dev); |
| 3285 | err = b43legacy_chip_init(dev); |
| 3286 | if (err) |
| 3287 | goto err_kfree_tssitbl; |
| 3288 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 3289 | B43legacy_SHM_SH_WLCOREREV, |
| 3290 | dev->dev->id.revision); |
| 3291 | hf = b43legacy_hf_read(dev); |
| 3292 | if (phy->type == B43legacy_PHYTYPE_G) { |
| 3293 | hf |= B43legacy_HF_SYMW; |
| 3294 | if (phy->rev == 1) |
| 3295 | hf |= B43legacy_HF_GDCW; |
Larry Finger | 7797aa3 | 2007-11-09 16:57:34 -0600 | [diff] [blame] | 3296 | if (sprom->boardflags_lo & B43legacy_BFL_PACTRL) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3297 | hf |= B43legacy_HF_OFDMPABOOST; |
| 3298 | } else if (phy->type == B43legacy_PHYTYPE_B) { |
| 3299 | hf |= B43legacy_HF_SYMW; |
| 3300 | if (phy->rev >= 2 && phy->radio_ver == 0x2050) |
| 3301 | hf &= ~B43legacy_HF_GDCW; |
| 3302 | } |
| 3303 | b43legacy_hf_write(dev, hf); |
| 3304 | |
Stefano Brivio | 0a6e1be | 2007-11-06 22:48:12 +0100 | [diff] [blame] | 3305 | b43legacy_set_retry_limits(dev, |
| 3306 | B43legacy_DEFAULT_SHORT_RETRY_LIMIT, |
| 3307 | B43legacy_DEFAULT_LONG_RETRY_LIMIT); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3308 | |
| 3309 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 3310 | 0x0044, 3); |
| 3311 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 3312 | 0x0046, 2); |
| 3313 | |
| 3314 | /* Disable sending probe responses from firmware. |
| 3315 | * Setting the MaxTime to one usec will always trigger |
| 3316 | * a timeout, so we never send any probe resp. |
| 3317 | * A timeout of zero is infinite. */ |
| 3318 | b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, |
| 3319 | B43legacy_SHM_SH_PRMAXTIME, 1); |
| 3320 | |
| 3321 | b43legacy_rate_memory_init(dev); |
| 3322 | |
| 3323 | /* Minimum Contention Window */ |
| 3324 | if (phy->type == B43legacy_PHYTYPE_B) |
| 3325 | b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, |
| 3326 | 0x0003, 31); |
| 3327 | else |
| 3328 | b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, |
| 3329 | 0x0003, 15); |
| 3330 | /* Maximum Contention Window */ |
| 3331 | b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, |
| 3332 | 0x0004, 1023); |
| 3333 | |
| 3334 | do { |
| 3335 | if (b43legacy_using_pio(dev)) |
| 3336 | err = b43legacy_pio_init(dev); |
| 3337 | else { |
| 3338 | err = b43legacy_dma_init(dev); |
| 3339 | if (!err) |
| 3340 | b43legacy_qos_init(dev); |
| 3341 | } |
| 3342 | } while (err == -EAGAIN); |
| 3343 | if (err) |
| 3344 | goto err_chip_exit; |
| 3345 | |
Stefano Brivio | 3e2c40e | 2008-04-14 00:57:03 +0200 | [diff] [blame] | 3346 | b43legacy_set_synth_pu_delay(dev, 1); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3347 | |
| 3348 | ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */ |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3349 | b43legacy_upload_card_macaddress(dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3350 | b43legacy_security_init(dev); |
| 3351 | b43legacy_rng_init(wl); |
| 3352 | |
Larry Finger | 0866b03 | 2010-02-03 13:33:44 -0600 | [diff] [blame] | 3353 | ieee80211_wake_queues(dev->wl->hw); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3354 | b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED); |
| 3355 | |
Larry Finger | 4ad36d7 | 2007-12-16 19:21:06 +0100 | [diff] [blame] | 3356 | b43legacy_leds_init(dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3357 | out: |
| 3358 | return err; |
| 3359 | |
| 3360 | err_chip_exit: |
| 3361 | b43legacy_chip_exit(dev); |
| 3362 | err_kfree_tssitbl: |
| 3363 | if (phy->dyn_tssi_tbl) |
| 3364 | kfree(phy->tssi2dbm); |
| 3365 | err_kfree_lo_control: |
| 3366 | kfree(phy->lo_control); |
| 3367 | phy->lo_control = NULL; |
| 3368 | ssb_bus_may_powerdown(bus); |
| 3369 | B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT); |
| 3370 | return err; |
| 3371 | } |
| 3372 | |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 3373 | static int b43legacy_op_add_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3374 | struct ieee80211_vif *vif) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3375 | { |
| 3376 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
| 3377 | struct b43legacy_wldev *dev; |
| 3378 | unsigned long flags; |
| 3379 | int err = -EOPNOTSUPP; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3380 | |
| 3381 | /* TODO: allow WDS/AP devices to coexist */ |
| 3382 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3383 | if (vif->type != NL80211_IFTYPE_AP && |
| 3384 | vif->type != NL80211_IFTYPE_STATION && |
| 3385 | vif->type != NL80211_IFTYPE_WDS && |
| 3386 | vif->type != NL80211_IFTYPE_ADHOC) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3387 | return -EOPNOTSUPP; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3388 | |
| 3389 | mutex_lock(&wl->mutex); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3390 | if (wl->operating) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3391 | goto out_mutex_unlock; |
| 3392 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3393 | b43legacydbg(wl, "Adding Interface type %d\n", vif->type); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3394 | |
| 3395 | dev = wl->current_dev; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3396 | wl->operating = 1; |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3397 | wl->vif = vif; |
| 3398 | wl->if_type = vif->type; |
| 3399 | memcpy(wl->mac_addr, vif->addr, ETH_ALEN); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3400 | |
| 3401 | spin_lock_irqsave(&wl->irq_lock, flags); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3402 | b43legacy_adjust_opmode(dev); |
Stefano Brivio | 3e2c40e | 2008-04-14 00:57:03 +0200 | [diff] [blame] | 3403 | b43legacy_set_pretbtt(dev); |
| 3404 | b43legacy_set_synth_pu_delay(dev, 0); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3405 | b43legacy_upload_card_macaddress(dev); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3406 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3407 | |
| 3408 | err = 0; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3409 | out_mutex_unlock: |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3410 | mutex_unlock(&wl->mutex); |
| 3411 | |
| 3412 | return err; |
| 3413 | } |
| 3414 | |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 3415 | static void b43legacy_op_remove_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3416 | struct ieee80211_vif *vif) |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3417 | { |
| 3418 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3419 | struct b43legacy_wldev *dev = wl->current_dev; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3420 | unsigned long flags; |
| 3421 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3422 | b43legacydbg(wl, "Removing Interface type %d\n", vif->type); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3423 | |
| 3424 | mutex_lock(&wl->mutex); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3425 | |
| 3426 | B43legacy_WARN_ON(!wl->operating); |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3427 | B43legacy_WARN_ON(wl->vif != vif); |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 3428 | wl->vif = NULL; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3429 | |
| 3430 | wl->operating = 0; |
| 3431 | |
| 3432 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3433 | b43legacy_adjust_opmode(dev); |
| 3434 | memset(wl->mac_addr, 0, ETH_ALEN); |
| 3435 | b43legacy_upload_card_macaddress(dev); |
| 3436 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3437 | |
| 3438 | mutex_unlock(&wl->mutex); |
| 3439 | } |
| 3440 | |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 3441 | static int b43legacy_op_start(struct ieee80211_hw *hw) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3442 | { |
| 3443 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
| 3444 | struct b43legacy_wldev *dev = wl->current_dev; |
| 3445 | int did_init = 0; |
Larry Finger | 208eec8 | 2007-10-14 16:04:30 -0500 | [diff] [blame] | 3446 | int err = 0; |
Larry Finger | 4ad36d7 | 2007-12-16 19:21:06 +0100 | [diff] [blame] | 3447 | |
Stefano Brivio | ada5073 | 2008-02-02 19:15:57 +0100 | [diff] [blame] | 3448 | /* Kill all old instance specific information to make sure |
| 3449 | * the card won't use it in the short timeframe between start |
| 3450 | * and mac80211 reconfiguring it. */ |
| 3451 | memset(wl->bssid, 0, ETH_ALEN); |
| 3452 | memset(wl->mac_addr, 0, ETH_ALEN); |
| 3453 | wl->filter_flags = 0; |
Larry Finger | 2d1f96d | 2009-04-11 11:26:01 -0500 | [diff] [blame] | 3454 | wl->beacon0_uploaded = 0; |
| 3455 | wl->beacon1_uploaded = 0; |
| 3456 | wl->beacon_templates_virgin = 1; |
Larry Finger | fd4973c | 2009-06-20 12:58:11 -0500 | [diff] [blame] | 3457 | wl->radio_enabled = 1; |
Stefano Brivio | ada5073 | 2008-02-02 19:15:57 +0100 | [diff] [blame] | 3458 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3459 | mutex_lock(&wl->mutex); |
| 3460 | |
| 3461 | if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) { |
| 3462 | err = b43legacy_wireless_core_init(dev); |
Johannes Berg | f41f3f3 | 2009-06-07 12:30:34 -0500 | [diff] [blame] | 3463 | if (err) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3464 | goto out_mutex_unlock; |
| 3465 | did_init = 1; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3466 | } |
| 3467 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3468 | if (b43legacy_status(dev) < B43legacy_STAT_STARTED) { |
| 3469 | err = b43legacy_wireless_core_start(dev); |
| 3470 | if (err) { |
| 3471 | if (did_init) |
| 3472 | b43legacy_wireless_core_exit(dev); |
| 3473 | goto out_mutex_unlock; |
| 3474 | } |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3475 | } |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3476 | |
Johannes Berg | f41f3f3 | 2009-06-07 12:30:34 -0500 | [diff] [blame] | 3477 | wiphy_rfkill_start_polling(hw->wiphy); |
| 3478 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3479 | out_mutex_unlock: |
| 3480 | mutex_unlock(&wl->mutex); |
| 3481 | |
| 3482 | return err; |
| 3483 | } |
| 3484 | |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 3485 | static void b43legacy_op_stop(struct ieee80211_hw *hw) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3486 | { |
| 3487 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
| 3488 | struct b43legacy_wldev *dev = wl->current_dev; |
| 3489 | |
Larry Finger | 7858e07 | 2009-04-11 11:25:24 -0500 | [diff] [blame] | 3490 | cancel_work_sync(&(wl->beacon_update_trigger)); |
Larry Finger | 4ad36d7 | 2007-12-16 19:21:06 +0100 | [diff] [blame] | 3491 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3492 | mutex_lock(&wl->mutex); |
| 3493 | if (b43legacy_status(dev) >= B43legacy_STAT_STARTED) |
| 3494 | b43legacy_wireless_core_stop(dev); |
| 3495 | b43legacy_wireless_core_exit(dev); |
Larry Finger | fd4973c | 2009-06-20 12:58:11 -0500 | [diff] [blame] | 3496 | wl->radio_enabled = 0; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3497 | mutex_unlock(&wl->mutex); |
| 3498 | } |
| 3499 | |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 3500 | static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw, |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 3501 | struct ieee80211_sta *sta, bool set) |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 3502 | { |
| 3503 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 3504 | unsigned long flags; |
| 3505 | |
| 3506 | spin_lock_irqsave(&wl->irq_lock, flags); |
Johannes Berg | 9d139c8 | 2008-07-09 14:40:37 +0200 | [diff] [blame] | 3507 | b43legacy_update_templates(wl); |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 3508 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3509 | |
| 3510 | return 0; |
| 3511 | } |
| 3512 | |
John W. Linville | c7ab1a4 | 2010-04-29 15:56:25 -0400 | [diff] [blame] | 3513 | static int b43legacy_op_get_survey(struct ieee80211_hw *hw, int idx, |
| 3514 | struct survey_info *survey) |
| 3515 | { |
| 3516 | struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw); |
| 3517 | struct b43legacy_wldev *dev = wl->current_dev; |
| 3518 | struct ieee80211_conf *conf = &hw->conf; |
| 3519 | |
| 3520 | if (idx != 0) |
| 3521 | return -ENOENT; |
| 3522 | |
| 3523 | survey->channel = conf->channel; |
| 3524 | survey->filled = SURVEY_INFO_NOISE_DBM; |
| 3525 | survey->noise = dev->stats.link_noise; |
| 3526 | |
| 3527 | return 0; |
| 3528 | } |
| 3529 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3530 | static const struct ieee80211_ops b43legacy_hw_ops = { |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 3531 | .tx = b43legacy_op_tx, |
| 3532 | .conf_tx = b43legacy_op_conf_tx, |
| 3533 | .add_interface = b43legacy_op_add_interface, |
| 3534 | .remove_interface = b43legacy_op_remove_interface, |
| 3535 | .config = b43legacy_op_dev_config, |
Johannes Berg | 7f3704e | 2008-11-06 15:18:11 +0100 | [diff] [blame] | 3536 | .bss_info_changed = b43legacy_op_bss_info_changed, |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 3537 | .configure_filter = b43legacy_op_configure_filter, |
| 3538 | .get_stats = b43legacy_op_get_stats, |
Stefano Brivio | 33a3dc9 | 2007-11-06 22:48:25 +0100 | [diff] [blame] | 3539 | .start = b43legacy_op_start, |
| 3540 | .stop = b43legacy_op_stop, |
Stefano Brivio | a297170 | 2008-02-08 06:31:25 +0100 | [diff] [blame] | 3541 | .set_tim = b43legacy_op_beacon_set_tim, |
John W. Linville | c7ab1a4 | 2010-04-29 15:56:25 -0400 | [diff] [blame] | 3542 | .get_survey = b43legacy_op_get_survey, |
Johannes Berg | f41f3f3 | 2009-06-07 12:30:34 -0500 | [diff] [blame] | 3543 | .rfkill_poll = b43legacy_rfkill_poll, |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3544 | }; |
| 3545 | |
| 3546 | /* Hard-reset the chip. Do not call this directly. |
| 3547 | * Use b43legacy_controller_restart() |
| 3548 | */ |
| 3549 | static void b43legacy_chip_reset(struct work_struct *work) |
| 3550 | { |
| 3551 | struct b43legacy_wldev *dev = |
| 3552 | container_of(work, struct b43legacy_wldev, restart_work); |
| 3553 | struct b43legacy_wl *wl = dev->wl; |
| 3554 | int err = 0; |
| 3555 | int prev_status; |
| 3556 | |
| 3557 | mutex_lock(&wl->mutex); |
| 3558 | |
| 3559 | prev_status = b43legacy_status(dev); |
| 3560 | /* Bring the device down... */ |
| 3561 | if (prev_status >= B43legacy_STAT_STARTED) |
| 3562 | b43legacy_wireless_core_stop(dev); |
| 3563 | if (prev_status >= B43legacy_STAT_INITIALIZED) |
| 3564 | b43legacy_wireless_core_exit(dev); |
| 3565 | |
| 3566 | /* ...and up again. */ |
| 3567 | if (prev_status >= B43legacy_STAT_INITIALIZED) { |
| 3568 | err = b43legacy_wireless_core_init(dev); |
| 3569 | if (err) |
| 3570 | goto out; |
| 3571 | } |
| 3572 | if (prev_status >= B43legacy_STAT_STARTED) { |
| 3573 | err = b43legacy_wireless_core_start(dev); |
| 3574 | if (err) { |
| 3575 | b43legacy_wireless_core_exit(dev); |
| 3576 | goto out; |
| 3577 | } |
| 3578 | } |
| 3579 | out: |
Michael Buesch | 48e6c51 | 2008-05-22 17:06:36 +0200 | [diff] [blame] | 3580 | if (err) |
| 3581 | wl->current_dev = NULL; /* Failed to init the dev. */ |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3582 | mutex_unlock(&wl->mutex); |
| 3583 | if (err) |
| 3584 | b43legacyerr(wl, "Controller restart FAILED\n"); |
| 3585 | else |
| 3586 | b43legacyinfo(wl, "Controller restarted\n"); |
| 3587 | } |
| 3588 | |
| 3589 | static int b43legacy_setup_modes(struct b43legacy_wldev *dev, |
| 3590 | int have_bphy, |
| 3591 | int have_gphy) |
| 3592 | { |
| 3593 | struct ieee80211_hw *hw = dev->wl->hw; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3594 | struct b43legacy_phy *phy = &dev->phy; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3595 | |
| 3596 | phy->possible_phymodes = 0; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 3597 | if (have_bphy) { |
| 3598 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| 3599 | &b43legacy_band_2GHz_BPHY; |
| 3600 | phy->possible_phymodes |= B43legacy_PHYMODE_B; |
| 3601 | } |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3602 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 3603 | if (have_gphy) { |
| 3604 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| 3605 | &b43legacy_band_2GHz_GPHY; |
| 3606 | phy->possible_phymodes |= B43legacy_PHYMODE_G; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3607 | } |
| 3608 | |
| 3609 | return 0; |
| 3610 | } |
| 3611 | |
| 3612 | static void b43legacy_wireless_core_detach(struct b43legacy_wldev *dev) |
| 3613 | { |
| 3614 | /* We release firmware that late to not be required to re-request |
| 3615 | * is all the time when we reinit the core. */ |
| 3616 | b43legacy_release_firmware(dev); |
| 3617 | } |
| 3618 | |
| 3619 | static int b43legacy_wireless_core_attach(struct b43legacy_wldev *dev) |
| 3620 | { |
| 3621 | struct b43legacy_wl *wl = dev->wl; |
| 3622 | struct ssb_bus *bus = dev->dev->bus; |
Michael Buesch | 899110f | 2009-10-09 20:30:10 +0200 | [diff] [blame] | 3623 | struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3624 | int err; |
| 3625 | int have_bphy = 0; |
| 3626 | int have_gphy = 0; |
| 3627 | u32 tmp; |
| 3628 | |
| 3629 | /* Do NOT do any device initialization here. |
| 3630 | * Do it in wireless_core_init() instead. |
| 3631 | * This function is for gathering basic information about the HW, only. |
| 3632 | * Also some structs may be set up here. But most likely you want to |
| 3633 | * have that in core_init(), too. |
| 3634 | */ |
| 3635 | |
| 3636 | err = ssb_bus_powerup(bus, 0); |
| 3637 | if (err) { |
| 3638 | b43legacyerr(wl, "Bus powerup failed\n"); |
| 3639 | goto out; |
| 3640 | } |
| 3641 | /* Get the PHY type. */ |
| 3642 | if (dev->dev->id.revision >= 5) { |
| 3643 | u32 tmshigh; |
| 3644 | |
| 3645 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); |
| 3646 | have_gphy = !!(tmshigh & B43legacy_TMSHIGH_GPHY); |
| 3647 | if (!have_gphy) |
| 3648 | have_bphy = 1; |
| 3649 | } else if (dev->dev->id.revision == 4) |
| 3650 | have_gphy = 1; |
| 3651 | else |
| 3652 | have_bphy = 1; |
| 3653 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3654 | dev->phy.gmode = (have_gphy || have_bphy); |
Larry Finger | fd4973c | 2009-06-20 12:58:11 -0500 | [diff] [blame] | 3655 | dev->phy.radio_on = 1; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3656 | tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0; |
| 3657 | b43legacy_wireless_core_reset(dev, tmp); |
| 3658 | |
| 3659 | err = b43legacy_phy_versioning(dev); |
| 3660 | if (err) |
Larry Finger | ba48f7b | 2007-10-12 23:04:51 -0500 | [diff] [blame] | 3661 | goto err_powerdown; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3662 | /* Check if this device supports multiband. */ |
| 3663 | if (!pdev || |
| 3664 | (pdev->device != 0x4312 && |
| 3665 | pdev->device != 0x4319 && |
| 3666 | pdev->device != 0x4324)) { |
| 3667 | /* No multiband support. */ |
| 3668 | have_bphy = 0; |
| 3669 | have_gphy = 0; |
| 3670 | switch (dev->phy.type) { |
| 3671 | case B43legacy_PHYTYPE_B: |
| 3672 | have_bphy = 1; |
| 3673 | break; |
| 3674 | case B43legacy_PHYTYPE_G: |
| 3675 | have_gphy = 1; |
| 3676 | break; |
| 3677 | default: |
| 3678 | B43legacy_BUG_ON(1); |
| 3679 | } |
| 3680 | } |
| 3681 | dev->phy.gmode = (have_gphy || have_bphy); |
| 3682 | tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0; |
| 3683 | b43legacy_wireless_core_reset(dev, tmp); |
| 3684 | |
| 3685 | err = b43legacy_validate_chipaccess(dev); |
| 3686 | if (err) |
Larry Finger | ba48f7b | 2007-10-12 23:04:51 -0500 | [diff] [blame] | 3687 | goto err_powerdown; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3688 | err = b43legacy_setup_modes(dev, have_bphy, have_gphy); |
| 3689 | if (err) |
Larry Finger | ba48f7b | 2007-10-12 23:04:51 -0500 | [diff] [blame] | 3690 | goto err_powerdown; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3691 | |
| 3692 | /* Now set some default "current_dev" */ |
| 3693 | if (!wl->current_dev) |
| 3694 | wl->current_dev = dev; |
| 3695 | INIT_WORK(&dev->restart_work, b43legacy_chip_reset); |
| 3696 | |
Larry Finger | 93bb7f3 | 2007-10-10 22:44:22 -0500 | [diff] [blame] | 3697 | b43legacy_radio_turn_off(dev, 1); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3698 | b43legacy_switch_analog(dev, 0); |
| 3699 | ssb_device_disable(dev->dev, 0); |
| 3700 | ssb_bus_may_powerdown(bus); |
| 3701 | |
| 3702 | out: |
| 3703 | return err; |
| 3704 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3705 | err_powerdown: |
| 3706 | ssb_bus_may_powerdown(bus); |
| 3707 | return err; |
| 3708 | } |
| 3709 | |
| 3710 | static void b43legacy_one_core_detach(struct ssb_device *dev) |
| 3711 | { |
| 3712 | struct b43legacy_wldev *wldev; |
| 3713 | struct b43legacy_wl *wl; |
| 3714 | |
Michael Buesch | 48e6c51 | 2008-05-22 17:06:36 +0200 | [diff] [blame] | 3715 | /* Do not cancel ieee80211-workqueue based work here. |
| 3716 | * See comment in b43legacy_remove(). */ |
| 3717 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3718 | wldev = ssb_get_drvdata(dev); |
| 3719 | wl = wldev->wl; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3720 | b43legacy_debugfs_remove_device(wldev); |
| 3721 | b43legacy_wireless_core_detach(wldev); |
| 3722 | list_del(&wldev->list); |
| 3723 | wl->nr_devs--; |
| 3724 | ssb_set_drvdata(dev, NULL); |
| 3725 | kfree(wldev); |
| 3726 | } |
| 3727 | |
| 3728 | static int b43legacy_one_core_attach(struct ssb_device *dev, |
| 3729 | struct b43legacy_wl *wl) |
| 3730 | { |
| 3731 | struct b43legacy_wldev *wldev; |
| 3732 | struct pci_dev *pdev; |
| 3733 | int err = -ENOMEM; |
| 3734 | |
| 3735 | if (!list_empty(&wl->devlist)) { |
| 3736 | /* We are not the first core on this chip. */ |
Michael Buesch | 899110f | 2009-10-09 20:30:10 +0200 | [diff] [blame] | 3737 | pdev = (dev->bus->bustype == SSB_BUSTYPE_PCI) ? dev->bus->host_pci : NULL; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3738 | /* Only special chips support more than one wireless |
| 3739 | * core, although some of the other chips have more than |
| 3740 | * one wireless core as well. Check for this and |
| 3741 | * bail out early. |
| 3742 | */ |
| 3743 | if (!pdev || |
| 3744 | ((pdev->device != 0x4321) && |
| 3745 | (pdev->device != 0x4313) && |
| 3746 | (pdev->device != 0x431A))) { |
| 3747 | b43legacydbg(wl, "Ignoring unconnected 802.11 core\n"); |
| 3748 | return -ENODEV; |
| 3749 | } |
| 3750 | } |
| 3751 | |
| 3752 | wldev = kzalloc(sizeof(*wldev), GFP_KERNEL); |
| 3753 | if (!wldev) |
| 3754 | goto out; |
| 3755 | |
| 3756 | wldev->dev = dev; |
| 3757 | wldev->wl = wl; |
| 3758 | b43legacy_set_status(wldev, B43legacy_STAT_UNINIT); |
| 3759 | wldev->bad_frames_preempt = modparam_bad_frames_preempt; |
| 3760 | tasklet_init(&wldev->isr_tasklet, |
| 3761 | (void (*)(unsigned long))b43legacy_interrupt_tasklet, |
| 3762 | (unsigned long)wldev); |
| 3763 | if (modparam_pio) |
| 3764 | wldev->__using_pio = 1; |
| 3765 | INIT_LIST_HEAD(&wldev->list); |
| 3766 | |
| 3767 | err = b43legacy_wireless_core_attach(wldev); |
| 3768 | if (err) |
| 3769 | goto err_kfree_wldev; |
| 3770 | |
| 3771 | list_add(&wldev->list, &wl->devlist); |
| 3772 | wl->nr_devs++; |
| 3773 | ssb_set_drvdata(dev, wldev); |
| 3774 | b43legacy_debugfs_add_device(wldev); |
| 3775 | out: |
| 3776 | return err; |
| 3777 | |
| 3778 | err_kfree_wldev: |
| 3779 | kfree(wldev); |
| 3780 | return err; |
| 3781 | } |
| 3782 | |
| 3783 | static void b43legacy_sprom_fixup(struct ssb_bus *bus) |
| 3784 | { |
| 3785 | /* boardflags workarounds */ |
| 3786 | if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE && |
| 3787 | bus->boardinfo.type == 0x4E && |
| 3788 | bus->boardinfo.rev > 0x40) |
Larry Finger | 7797aa3 | 2007-11-09 16:57:34 -0600 | [diff] [blame] | 3789 | bus->sprom.boardflags_lo |= B43legacy_BFL_PACTRL; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3790 | } |
| 3791 | |
| 3792 | static void b43legacy_wireless_exit(struct ssb_device *dev, |
| 3793 | struct b43legacy_wl *wl) |
| 3794 | { |
| 3795 | struct ieee80211_hw *hw = wl->hw; |
| 3796 | |
| 3797 | ssb_set_devtypedata(dev, NULL); |
| 3798 | ieee80211_free_hw(hw); |
| 3799 | } |
| 3800 | |
| 3801 | static int b43legacy_wireless_init(struct ssb_device *dev) |
| 3802 | { |
| 3803 | struct ssb_sprom *sprom = &dev->bus->sprom; |
| 3804 | struct ieee80211_hw *hw; |
| 3805 | struct b43legacy_wl *wl; |
| 3806 | int err = -ENOMEM; |
| 3807 | |
| 3808 | b43legacy_sprom_fixup(dev->bus); |
| 3809 | |
| 3810 | hw = ieee80211_alloc_hw(sizeof(*wl), &b43legacy_hw_ops); |
| 3811 | if (!hw) { |
| 3812 | b43legacyerr(NULL, "Could not allocate ieee80211 device\n"); |
| 3813 | goto out; |
| 3814 | } |
| 3815 | |
| 3816 | /* fill hw info */ |
Johannes Berg | 605a0bd | 2008-07-15 10:10:01 +0200 | [diff] [blame] | 3817 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
John W. Linville | f5c044e | 2010-04-30 15:37:00 -0400 | [diff] [blame] | 3818 | IEEE80211_HW_SIGNAL_DBM; |
Luis R. Rodriguez | f59ac04 | 2008-08-29 16:26:43 -0700 | [diff] [blame] | 3819 | hw->wiphy->interface_modes = |
| 3820 | BIT(NL80211_IFTYPE_AP) | |
| 3821 | BIT(NL80211_IFTYPE_STATION) | |
| 3822 | BIT(NL80211_IFTYPE_WDS) | |
| 3823 | BIT(NL80211_IFTYPE_ADHOC); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3824 | hw->queues = 1; /* FIXME: hardware has more queues */ |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 3825 | hw->max_rates = 2; |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3826 | SET_IEEE80211_DEV(hw, dev->dev); |
Larry Finger | 7797aa3 | 2007-11-09 16:57:34 -0600 | [diff] [blame] | 3827 | if (is_valid_ether_addr(sprom->et1mac)) |
| 3828 | SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3829 | else |
Larry Finger | 7797aa3 | 2007-11-09 16:57:34 -0600 | [diff] [blame] | 3830 | SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3831 | |
| 3832 | /* Get and initialize struct b43legacy_wl */ |
| 3833 | wl = hw_to_b43legacy_wl(hw); |
| 3834 | memset(wl, 0, sizeof(*wl)); |
| 3835 | wl->hw = hw; |
| 3836 | spin_lock_init(&wl->irq_lock); |
| 3837 | spin_lock_init(&wl->leds_lock); |
| 3838 | mutex_init(&wl->mutex); |
| 3839 | INIT_LIST_HEAD(&wl->devlist); |
Larry Finger | 7858e07 | 2009-04-11 11:25:24 -0500 | [diff] [blame] | 3840 | INIT_WORK(&wl->beacon_update_trigger, b43legacy_beacon_update_trigger_work); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3841 | |
| 3842 | ssb_set_devtypedata(dev, wl); |
| 3843 | b43legacyinfo(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id); |
| 3844 | err = 0; |
| 3845 | out: |
| 3846 | return err; |
| 3847 | } |
| 3848 | |
| 3849 | static int b43legacy_probe(struct ssb_device *dev, |
| 3850 | const struct ssb_device_id *id) |
| 3851 | { |
| 3852 | struct b43legacy_wl *wl; |
| 3853 | int err; |
| 3854 | int first = 0; |
| 3855 | |
| 3856 | wl = ssb_get_devtypedata(dev); |
| 3857 | if (!wl) { |
| 3858 | /* Probing the first core - setup common struct b43legacy_wl */ |
| 3859 | first = 1; |
| 3860 | err = b43legacy_wireless_init(dev); |
| 3861 | if (err) |
| 3862 | goto out; |
| 3863 | wl = ssb_get_devtypedata(dev); |
| 3864 | B43legacy_WARN_ON(!wl); |
| 3865 | } |
| 3866 | err = b43legacy_one_core_attach(dev, wl); |
| 3867 | if (err) |
| 3868 | goto err_wireless_exit; |
| 3869 | |
| 3870 | if (first) { |
| 3871 | err = ieee80211_register_hw(wl->hw); |
| 3872 | if (err) |
| 3873 | goto err_one_core_detach; |
| 3874 | } |
| 3875 | |
| 3876 | out: |
| 3877 | return err; |
| 3878 | |
| 3879 | err_one_core_detach: |
| 3880 | b43legacy_one_core_detach(dev); |
| 3881 | err_wireless_exit: |
| 3882 | if (first) |
| 3883 | b43legacy_wireless_exit(dev, wl); |
| 3884 | return err; |
| 3885 | } |
| 3886 | |
| 3887 | static void b43legacy_remove(struct ssb_device *dev) |
| 3888 | { |
| 3889 | struct b43legacy_wl *wl = ssb_get_devtypedata(dev); |
| 3890 | struct b43legacy_wldev *wldev = ssb_get_drvdata(dev); |
| 3891 | |
Michael Buesch | 48e6c51 | 2008-05-22 17:06:36 +0200 | [diff] [blame] | 3892 | /* We must cancel any work here before unregistering from ieee80211, |
| 3893 | * as the ieee80211 unreg will destroy the workqueue. */ |
| 3894 | cancel_work_sync(&wldev->restart_work); |
| 3895 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3896 | B43legacy_WARN_ON(!wl); |
| 3897 | if (wl->current_dev == wldev) |
| 3898 | ieee80211_unregister_hw(wl->hw); |
| 3899 | |
| 3900 | b43legacy_one_core_detach(dev); |
| 3901 | |
| 3902 | if (list_empty(&wl->devlist)) |
| 3903 | /* Last core on the chip unregistered. |
| 3904 | * We can destroy common struct b43legacy_wl. |
| 3905 | */ |
| 3906 | b43legacy_wireless_exit(dev, wl); |
| 3907 | } |
| 3908 | |
| 3909 | /* Perform a hardware reset. This can be called from any context. */ |
| 3910 | void b43legacy_controller_restart(struct b43legacy_wldev *dev, |
| 3911 | const char *reason) |
| 3912 | { |
| 3913 | /* Must avoid requeueing, if we are in shutdown. */ |
| 3914 | if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) |
| 3915 | return; |
| 3916 | b43legacyinfo(dev->wl, "Controller RESET (%s) ...\n", reason); |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 3917 | ieee80211_queue_work(dev->wl->hw, &dev->restart_work); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3918 | } |
| 3919 | |
| 3920 | #ifdef CONFIG_PM |
| 3921 | |
| 3922 | static int b43legacy_suspend(struct ssb_device *dev, pm_message_t state) |
| 3923 | { |
| 3924 | struct b43legacy_wldev *wldev = ssb_get_drvdata(dev); |
| 3925 | struct b43legacy_wl *wl = wldev->wl; |
| 3926 | |
| 3927 | b43legacydbg(wl, "Suspending...\n"); |
| 3928 | |
| 3929 | mutex_lock(&wl->mutex); |
| 3930 | wldev->suspend_init_status = b43legacy_status(wldev); |
| 3931 | if (wldev->suspend_init_status >= B43legacy_STAT_STARTED) |
| 3932 | b43legacy_wireless_core_stop(wldev); |
| 3933 | if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED) |
| 3934 | b43legacy_wireless_core_exit(wldev); |
| 3935 | mutex_unlock(&wl->mutex); |
| 3936 | |
| 3937 | b43legacydbg(wl, "Device suspended.\n"); |
| 3938 | |
| 3939 | return 0; |
| 3940 | } |
| 3941 | |
| 3942 | static int b43legacy_resume(struct ssb_device *dev) |
| 3943 | { |
| 3944 | struct b43legacy_wldev *wldev = ssb_get_drvdata(dev); |
| 3945 | struct b43legacy_wl *wl = wldev->wl; |
| 3946 | int err = 0; |
| 3947 | |
| 3948 | b43legacydbg(wl, "Resuming...\n"); |
| 3949 | |
| 3950 | mutex_lock(&wl->mutex); |
| 3951 | if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED) { |
| 3952 | err = b43legacy_wireless_core_init(wldev); |
| 3953 | if (err) { |
| 3954 | b43legacyerr(wl, "Resume failed at core init\n"); |
| 3955 | goto out; |
| 3956 | } |
| 3957 | } |
| 3958 | if (wldev->suspend_init_status >= B43legacy_STAT_STARTED) { |
| 3959 | err = b43legacy_wireless_core_start(wldev); |
| 3960 | if (err) { |
| 3961 | b43legacy_wireless_core_exit(wldev); |
| 3962 | b43legacyerr(wl, "Resume failed at core start\n"); |
| 3963 | goto out; |
| 3964 | } |
| 3965 | } |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3966 | |
| 3967 | b43legacydbg(wl, "Device resumed.\n"); |
| 3968 | out: |
Julia Lawall | 4104863 | 2008-07-21 11:29:34 +0200 | [diff] [blame] | 3969 | mutex_unlock(&wl->mutex); |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 3970 | return err; |
| 3971 | } |
| 3972 | |
| 3973 | #else /* CONFIG_PM */ |
| 3974 | # define b43legacy_suspend NULL |
| 3975 | # define b43legacy_resume NULL |
| 3976 | #endif /* CONFIG_PM */ |
| 3977 | |
| 3978 | static struct ssb_driver b43legacy_ssb_driver = { |
| 3979 | .name = KBUILD_MODNAME, |
| 3980 | .id_table = b43legacy_ssb_tbl, |
| 3981 | .probe = b43legacy_probe, |
| 3982 | .remove = b43legacy_remove, |
| 3983 | .suspend = b43legacy_suspend, |
| 3984 | .resume = b43legacy_resume, |
| 3985 | }; |
| 3986 | |
Stefano Brivio | 6fff1c6 | 2008-02-09 07:20:43 +0100 | [diff] [blame] | 3987 | static void b43legacy_print_driverinfo(void) |
| 3988 | { |
Christoph Egger | 2f1f00f | 2010-01-13 14:36:24 +0100 | [diff] [blame] | 3989 | const char *feat_pci = "", *feat_leds = "", |
Stefano Brivio | 6fff1c6 | 2008-02-09 07:20:43 +0100 | [diff] [blame] | 3990 | *feat_pio = "", *feat_dma = ""; |
| 3991 | |
| 3992 | #ifdef CONFIG_B43LEGACY_PCI_AUTOSELECT |
| 3993 | feat_pci = "P"; |
| 3994 | #endif |
| 3995 | #ifdef CONFIG_B43LEGACY_LEDS |
| 3996 | feat_leds = "L"; |
| 3997 | #endif |
Stefano Brivio | 6fff1c6 | 2008-02-09 07:20:43 +0100 | [diff] [blame] | 3998 | #ifdef CONFIG_B43LEGACY_PIO |
| 3999 | feat_pio = "I"; |
| 4000 | #endif |
| 4001 | #ifdef CONFIG_B43LEGACY_DMA |
| 4002 | feat_dma = "D"; |
| 4003 | #endif |
Michael Buesch | c256e05 | 2008-03-04 20:31:13 +0100 | [diff] [blame] | 4004 | printk(KERN_INFO "Broadcom 43xx-legacy driver loaded " |
Christoph Egger | 2f1f00f | 2010-01-13 14:36:24 +0100 | [diff] [blame] | 4005 | "[ Features: %s%s%s%s, Firmware-ID: " |
Stefano Brivio | 6fff1c6 | 2008-02-09 07:20:43 +0100 | [diff] [blame] | 4006 | B43legacy_SUPPORTED_FIRMWARE_ID " ]\n", |
Christoph Egger | 2f1f00f | 2010-01-13 14:36:24 +0100 | [diff] [blame] | 4007 | feat_pci, feat_leds, feat_pio, feat_dma); |
Stefano Brivio | 6fff1c6 | 2008-02-09 07:20:43 +0100 | [diff] [blame] | 4008 | } |
| 4009 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 4010 | static int __init b43legacy_init(void) |
| 4011 | { |
| 4012 | int err; |
| 4013 | |
| 4014 | b43legacy_debugfs_init(); |
| 4015 | |
| 4016 | err = ssb_driver_register(&b43legacy_ssb_driver); |
| 4017 | if (err) |
| 4018 | goto err_dfs_exit; |
| 4019 | |
Stefano Brivio | 6fff1c6 | 2008-02-09 07:20:43 +0100 | [diff] [blame] | 4020 | b43legacy_print_driverinfo(); |
| 4021 | |
Larry Finger | 75388ac | 2007-09-25 16:46:54 -0700 | [diff] [blame] | 4022 | return err; |
| 4023 | |
| 4024 | err_dfs_exit: |
| 4025 | b43legacy_debugfs_exit(); |
| 4026 | return err; |
| 4027 | } |
| 4028 | |
| 4029 | static void __exit b43legacy_exit(void) |
| 4030 | { |
| 4031 | ssb_driver_unregister(&b43legacy_ssb_driver); |
| 4032 | b43legacy_debugfs_exit(); |
| 4033 | } |
| 4034 | |
| 4035 | module_init(b43legacy_init) |
| 4036 | module_exit(b43legacy_exit) |