Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1 | /* |
| 2 | |
| 3 | Broadcom B43 wireless driver |
| 4 | |
| 5 | Copyright (c) 2005 Martin Langer <martin-langer@gmx.de> |
Stefano Brivio | 1f21ad2 | 2007-11-06 22:49:20 +0100 | [diff] [blame] | 6 | Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it> |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [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 | |
| 11 | Some parts of the code in this file are derived from the ipw2200 |
| 12 | driver Copyright(c) 2003 - 2004 Intel Corporation. |
| 13 | |
| 14 | This program is free software; you can redistribute it and/or modify |
| 15 | it under the terms of the GNU General Public License as published by |
| 16 | the Free Software Foundation; either version 2 of the License, or |
| 17 | (at your option) any later version. |
| 18 | |
| 19 | This program is distributed in the hope that it will be useful, |
| 20 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | GNU General Public License for more details. |
| 23 | |
| 24 | You should have received a copy of the GNU General Public License |
| 25 | along with this program; see the file COPYING. If not, write to |
| 26 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, |
| 27 | Boston, MA 02110-1301, USA. |
| 28 | |
| 29 | */ |
| 30 | |
| 31 | #include <linux/delay.h> |
| 32 | #include <linux/init.h> |
| 33 | #include <linux/moduleparam.h> |
| 34 | #include <linux/if_arp.h> |
| 35 | #include <linux/etherdevice.h> |
| 36 | #include <linux/version.h> |
| 37 | #include <linux/firmware.h> |
| 38 | #include <linux/wireless.h> |
| 39 | #include <linux/workqueue.h> |
| 40 | #include <linux/skbuff.h> |
Andrew Morton | 96cf49a | 2008-02-04 22:27:19 -0800 | [diff] [blame] | 41 | #include <linux/io.h> |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 42 | #include <linux/dma-mapping.h> |
| 43 | #include <asm/unaligned.h> |
| 44 | |
| 45 | #include "b43.h" |
| 46 | #include "main.h" |
| 47 | #include "debugfs.h" |
| 48 | #include "phy.h" |
Michael Buesch | 7b58416 | 2008-04-03 18:01:12 +0200 | [diff] [blame] | 49 | #include "nphy.h" |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 50 | #include "dma.h" |
Michael Buesch | 5100d5a | 2008-03-29 21:01:16 +0100 | [diff] [blame] | 51 | #include "pio.h" |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 52 | #include "sysfs.h" |
| 53 | #include "xmit.h" |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 54 | #include "lo.h" |
| 55 | #include "pcmcia.h" |
| 56 | |
| 57 | MODULE_DESCRIPTION("Broadcom B43 wireless driver"); |
| 58 | MODULE_AUTHOR("Martin Langer"); |
| 59 | MODULE_AUTHOR("Stefano Brivio"); |
| 60 | MODULE_AUTHOR("Michael Buesch"); |
| 61 | MODULE_LICENSE("GPL"); |
| 62 | |
Michael Buesch | 9c7d99d | 2008-02-09 10:23:49 +0100 | [diff] [blame] | 63 | MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID); |
| 64 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 65 | |
| 66 | static int modparam_bad_frames_preempt; |
| 67 | module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); |
| 68 | MODULE_PARM_DESC(bad_frames_preempt, |
| 69 | "enable(1) / disable(0) Bad Frames Preemption"); |
| 70 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 71 | static char modparam_fwpostfix[16]; |
| 72 | module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444); |
| 73 | MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load."); |
| 74 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 75 | static int modparam_hwpctl; |
| 76 | module_param_named(hwpctl, modparam_hwpctl, int, 0444); |
| 77 | MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)"); |
| 78 | |
| 79 | static int modparam_nohwcrypt; |
| 80 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); |
| 81 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); |
| 82 | |
Michael Buesch | e6f5b93 | 2008-03-05 21:18:49 +0100 | [diff] [blame] | 83 | int b43_modparam_qos = 1; |
| 84 | module_param_named(qos, b43_modparam_qos, int, 0444); |
| 85 | MODULE_PARM_DESC(qos, "Enable QOS support (default on)"); |
| 86 | |
Michael Buesch | 1855ba7 | 2008-04-18 20:51:41 +0200 | [diff] [blame] | 87 | static int modparam_btcoex = 1; |
| 88 | module_param_named(btcoex, modparam_btcoex, int, 0444); |
| 89 | MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistance (default on)"); |
| 90 | |
Michael Buesch | e6f5b93 | 2008-03-05 21:18:49 +0100 | [diff] [blame] | 91 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 92 | static const struct ssb_device_id b43_ssb_tbl[] = { |
| 93 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5), |
| 94 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6), |
| 95 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7), |
| 96 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9), |
| 97 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10), |
Michael Buesch | d5c71e4 | 2008-01-04 17:06:29 +0100 | [diff] [blame] | 98 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11), |
Larry Finger | 013978b | 2007-11-26 10:29:47 -0600 | [diff] [blame] | 99 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13), |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 100 | SSB_DEVTABLE_END |
| 101 | }; |
| 102 | |
| 103 | MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl); |
| 104 | |
| 105 | /* Channel and ratetables are shared for all devices. |
| 106 | * They can't be const, because ieee80211 puts some precalculated |
| 107 | * data in there. This data is the same for all devices, so we don't |
| 108 | * get concurrency issues */ |
| 109 | #define RATETAB_ENT(_rateid, _flags) \ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 110 | { \ |
| 111 | .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \ |
| 112 | .hw_value = (_rateid), \ |
| 113 | .flags = (_flags), \ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 114 | } |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 115 | |
| 116 | /* |
| 117 | * NOTE: When changing this, sync with xmit.c's |
| 118 | * b43_plcp_get_bitrate_idx_* functions! |
| 119 | */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 120 | static struct ieee80211_rate __b43_ratetable[] = { |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 121 | RATETAB_ENT(B43_CCK_RATE_1MB, 0), |
| 122 | RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE), |
| 123 | RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE), |
| 124 | RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE), |
| 125 | RATETAB_ENT(B43_OFDM_RATE_6MB, 0), |
| 126 | RATETAB_ENT(B43_OFDM_RATE_9MB, 0), |
| 127 | RATETAB_ENT(B43_OFDM_RATE_12MB, 0), |
| 128 | RATETAB_ENT(B43_OFDM_RATE_18MB, 0), |
| 129 | RATETAB_ENT(B43_OFDM_RATE_24MB, 0), |
| 130 | RATETAB_ENT(B43_OFDM_RATE_36MB, 0), |
| 131 | RATETAB_ENT(B43_OFDM_RATE_48MB, 0), |
| 132 | RATETAB_ENT(B43_OFDM_RATE_54MB, 0), |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 133 | }; |
| 134 | |
| 135 | #define b43_a_ratetable (__b43_ratetable + 4) |
| 136 | #define b43_a_ratetable_size 8 |
| 137 | #define b43_b_ratetable (__b43_ratetable + 0) |
| 138 | #define b43_b_ratetable_size 4 |
| 139 | #define b43_g_ratetable (__b43_ratetable + 0) |
| 140 | #define b43_g_ratetable_size 12 |
| 141 | |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 142 | #define CHAN4G(_channel, _freq, _flags) { \ |
| 143 | .band = IEEE80211_BAND_2GHZ, \ |
| 144 | .center_freq = (_freq), \ |
| 145 | .hw_value = (_channel), \ |
| 146 | .flags = (_flags), \ |
| 147 | .max_antenna_gain = 0, \ |
| 148 | .max_power = 30, \ |
| 149 | } |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 150 | static struct ieee80211_channel b43_2ghz_chantable[] = { |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 151 | CHAN4G(1, 2412, 0), |
| 152 | CHAN4G(2, 2417, 0), |
| 153 | CHAN4G(3, 2422, 0), |
| 154 | CHAN4G(4, 2427, 0), |
| 155 | CHAN4G(5, 2432, 0), |
| 156 | CHAN4G(6, 2437, 0), |
| 157 | CHAN4G(7, 2442, 0), |
| 158 | CHAN4G(8, 2447, 0), |
| 159 | CHAN4G(9, 2452, 0), |
| 160 | CHAN4G(10, 2457, 0), |
| 161 | CHAN4G(11, 2462, 0), |
| 162 | CHAN4G(12, 2467, 0), |
| 163 | CHAN4G(13, 2472, 0), |
| 164 | CHAN4G(14, 2484, 0), |
| 165 | }; |
| 166 | #undef CHAN4G |
| 167 | |
| 168 | #define CHAN5G(_channel, _flags) { \ |
| 169 | .band = IEEE80211_BAND_5GHZ, \ |
| 170 | .center_freq = 5000 + (5 * (_channel)), \ |
| 171 | .hw_value = (_channel), \ |
| 172 | .flags = (_flags), \ |
| 173 | .max_antenna_gain = 0, \ |
| 174 | .max_power = 30, \ |
| 175 | } |
| 176 | static struct ieee80211_channel b43_5ghz_nphy_chantable[] = { |
| 177 | CHAN5G(32, 0), CHAN5G(34, 0), |
| 178 | CHAN5G(36, 0), CHAN5G(38, 0), |
| 179 | CHAN5G(40, 0), CHAN5G(42, 0), |
| 180 | CHAN5G(44, 0), CHAN5G(46, 0), |
| 181 | CHAN5G(48, 0), CHAN5G(50, 0), |
| 182 | CHAN5G(52, 0), CHAN5G(54, 0), |
| 183 | CHAN5G(56, 0), CHAN5G(58, 0), |
| 184 | CHAN5G(60, 0), CHAN5G(62, 0), |
| 185 | CHAN5G(64, 0), CHAN5G(66, 0), |
| 186 | CHAN5G(68, 0), CHAN5G(70, 0), |
| 187 | CHAN5G(72, 0), CHAN5G(74, 0), |
| 188 | CHAN5G(76, 0), CHAN5G(78, 0), |
| 189 | CHAN5G(80, 0), CHAN5G(82, 0), |
| 190 | CHAN5G(84, 0), CHAN5G(86, 0), |
| 191 | CHAN5G(88, 0), CHAN5G(90, 0), |
| 192 | CHAN5G(92, 0), CHAN5G(94, 0), |
| 193 | CHAN5G(96, 0), CHAN5G(98, 0), |
| 194 | CHAN5G(100, 0), CHAN5G(102, 0), |
| 195 | CHAN5G(104, 0), CHAN5G(106, 0), |
| 196 | CHAN5G(108, 0), CHAN5G(110, 0), |
| 197 | CHAN5G(112, 0), CHAN5G(114, 0), |
| 198 | CHAN5G(116, 0), CHAN5G(118, 0), |
| 199 | CHAN5G(120, 0), CHAN5G(122, 0), |
| 200 | CHAN5G(124, 0), CHAN5G(126, 0), |
| 201 | CHAN5G(128, 0), CHAN5G(130, 0), |
| 202 | CHAN5G(132, 0), CHAN5G(134, 0), |
| 203 | CHAN5G(136, 0), CHAN5G(138, 0), |
| 204 | CHAN5G(140, 0), CHAN5G(142, 0), |
| 205 | CHAN5G(144, 0), CHAN5G(145, 0), |
| 206 | CHAN5G(146, 0), CHAN5G(147, 0), |
| 207 | CHAN5G(148, 0), CHAN5G(149, 0), |
| 208 | CHAN5G(150, 0), CHAN5G(151, 0), |
| 209 | CHAN5G(152, 0), CHAN5G(153, 0), |
| 210 | CHAN5G(154, 0), CHAN5G(155, 0), |
| 211 | CHAN5G(156, 0), CHAN5G(157, 0), |
| 212 | CHAN5G(158, 0), CHAN5G(159, 0), |
| 213 | CHAN5G(160, 0), CHAN5G(161, 0), |
| 214 | CHAN5G(162, 0), CHAN5G(163, 0), |
| 215 | CHAN5G(164, 0), CHAN5G(165, 0), |
| 216 | CHAN5G(166, 0), CHAN5G(168, 0), |
| 217 | CHAN5G(170, 0), CHAN5G(172, 0), |
| 218 | CHAN5G(174, 0), CHAN5G(176, 0), |
| 219 | CHAN5G(178, 0), CHAN5G(180, 0), |
| 220 | CHAN5G(182, 0), CHAN5G(184, 0), |
| 221 | CHAN5G(186, 0), CHAN5G(188, 0), |
| 222 | CHAN5G(190, 0), CHAN5G(192, 0), |
| 223 | CHAN5G(194, 0), CHAN5G(196, 0), |
| 224 | CHAN5G(198, 0), CHAN5G(200, 0), |
| 225 | CHAN5G(202, 0), CHAN5G(204, 0), |
| 226 | CHAN5G(206, 0), CHAN5G(208, 0), |
| 227 | CHAN5G(210, 0), CHAN5G(212, 0), |
| 228 | CHAN5G(214, 0), CHAN5G(216, 0), |
| 229 | CHAN5G(218, 0), CHAN5G(220, 0), |
| 230 | CHAN5G(222, 0), CHAN5G(224, 0), |
| 231 | CHAN5G(226, 0), CHAN5G(228, 0), |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 232 | }; |
| 233 | |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 234 | static struct ieee80211_channel b43_5ghz_aphy_chantable[] = { |
| 235 | CHAN5G(34, 0), CHAN5G(36, 0), |
| 236 | CHAN5G(38, 0), CHAN5G(40, 0), |
| 237 | CHAN5G(42, 0), CHAN5G(44, 0), |
| 238 | CHAN5G(46, 0), CHAN5G(48, 0), |
| 239 | CHAN5G(52, 0), CHAN5G(56, 0), |
| 240 | CHAN5G(60, 0), CHAN5G(64, 0), |
| 241 | CHAN5G(100, 0), CHAN5G(104, 0), |
| 242 | CHAN5G(108, 0), CHAN5G(112, 0), |
| 243 | CHAN5G(116, 0), CHAN5G(120, 0), |
| 244 | CHAN5G(124, 0), CHAN5G(128, 0), |
| 245 | CHAN5G(132, 0), CHAN5G(136, 0), |
| 246 | CHAN5G(140, 0), CHAN5G(149, 0), |
| 247 | CHAN5G(153, 0), CHAN5G(157, 0), |
| 248 | CHAN5G(161, 0), CHAN5G(165, 0), |
| 249 | CHAN5G(184, 0), CHAN5G(188, 0), |
| 250 | CHAN5G(192, 0), CHAN5G(196, 0), |
| 251 | CHAN5G(200, 0), CHAN5G(204, 0), |
| 252 | CHAN5G(208, 0), CHAN5G(212, 0), |
| 253 | CHAN5G(216, 0), |
| 254 | }; |
| 255 | #undef CHAN5G |
| 256 | |
| 257 | static struct ieee80211_supported_band b43_band_5GHz_nphy = { |
| 258 | .band = IEEE80211_BAND_5GHZ, |
| 259 | .channels = b43_5ghz_nphy_chantable, |
| 260 | .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable), |
| 261 | .bitrates = b43_a_ratetable, |
| 262 | .n_bitrates = b43_a_ratetable_size, |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 263 | }; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 264 | |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 265 | static struct ieee80211_supported_band b43_band_5GHz_aphy = { |
| 266 | .band = IEEE80211_BAND_5GHZ, |
| 267 | .channels = b43_5ghz_aphy_chantable, |
| 268 | .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable), |
| 269 | .bitrates = b43_a_ratetable, |
| 270 | .n_bitrates = b43_a_ratetable_size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 271 | }; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 272 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 273 | static struct ieee80211_supported_band b43_band_2GHz = { |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 274 | .band = IEEE80211_BAND_2GHZ, |
| 275 | .channels = b43_2ghz_chantable, |
| 276 | .n_channels = ARRAY_SIZE(b43_2ghz_chantable), |
| 277 | .bitrates = b43_g_ratetable, |
| 278 | .n_bitrates = b43_g_ratetable_size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 279 | }; |
| 280 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 281 | static void b43_wireless_core_exit(struct b43_wldev *dev); |
| 282 | static int b43_wireless_core_init(struct b43_wldev *dev); |
| 283 | static void b43_wireless_core_stop(struct b43_wldev *dev); |
| 284 | static int b43_wireless_core_start(struct b43_wldev *dev); |
| 285 | |
| 286 | static int b43_ratelimit(struct b43_wl *wl) |
| 287 | { |
| 288 | if (!wl || !wl->current_dev) |
| 289 | return 1; |
| 290 | if (b43_status(wl->current_dev) < B43_STAT_STARTED) |
| 291 | return 1; |
| 292 | /* We are up and running. |
| 293 | * Ratelimit the messages to avoid DoS over the net. */ |
| 294 | return net_ratelimit(); |
| 295 | } |
| 296 | |
| 297 | void b43info(struct b43_wl *wl, const char *fmt, ...) |
| 298 | { |
| 299 | va_list args; |
| 300 | |
| 301 | if (!b43_ratelimit(wl)) |
| 302 | return; |
| 303 | va_start(args, fmt); |
| 304 | printk(KERN_INFO "b43-%s: ", |
| 305 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); |
| 306 | vprintk(fmt, args); |
| 307 | va_end(args); |
| 308 | } |
| 309 | |
| 310 | void b43err(struct b43_wl *wl, const char *fmt, ...) |
| 311 | { |
| 312 | va_list args; |
| 313 | |
| 314 | if (!b43_ratelimit(wl)) |
| 315 | return; |
| 316 | va_start(args, fmt); |
| 317 | printk(KERN_ERR "b43-%s ERROR: ", |
| 318 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); |
| 319 | vprintk(fmt, args); |
| 320 | va_end(args); |
| 321 | } |
| 322 | |
| 323 | void b43warn(struct b43_wl *wl, const char *fmt, ...) |
| 324 | { |
| 325 | va_list args; |
| 326 | |
| 327 | if (!b43_ratelimit(wl)) |
| 328 | return; |
| 329 | va_start(args, fmt); |
| 330 | printk(KERN_WARNING "b43-%s warning: ", |
| 331 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); |
| 332 | vprintk(fmt, args); |
| 333 | va_end(args); |
| 334 | } |
| 335 | |
| 336 | #if B43_DEBUG |
| 337 | void b43dbg(struct b43_wl *wl, const char *fmt, ...) |
| 338 | { |
| 339 | va_list args; |
| 340 | |
| 341 | va_start(args, fmt); |
| 342 | printk(KERN_DEBUG "b43-%s debug: ", |
| 343 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); |
| 344 | vprintk(fmt, args); |
| 345 | va_end(args); |
| 346 | } |
| 347 | #endif /* DEBUG */ |
| 348 | |
| 349 | static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val) |
| 350 | { |
| 351 | u32 macctl; |
| 352 | |
| 353 | B43_WARN_ON(offset % 4 != 0); |
| 354 | |
| 355 | macctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 356 | if (macctl & B43_MACCTL_BE) |
| 357 | val = swab32(val); |
| 358 | |
| 359 | b43_write32(dev, B43_MMIO_RAM_CONTROL, offset); |
| 360 | mmiowb(); |
| 361 | b43_write32(dev, B43_MMIO_RAM_DATA, val); |
| 362 | } |
| 363 | |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 364 | static inline void b43_shm_control_word(struct b43_wldev *dev, |
| 365 | u16 routing, u16 offset) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 366 | { |
| 367 | u32 control; |
| 368 | |
| 369 | /* "offset" is the WORD offset. */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 370 | control = routing; |
| 371 | control <<= 16; |
| 372 | control |= offset; |
| 373 | b43_write32(dev, B43_MMIO_SHM_CONTROL, control); |
| 374 | } |
| 375 | |
Michael Buesch | 6bbc321 | 2008-06-19 19:33:51 +0200 | [diff] [blame] | 376 | u32 __b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 377 | { |
| 378 | u32 ret; |
| 379 | |
| 380 | if (routing == B43_SHM_SHARED) { |
| 381 | B43_WARN_ON(offset & 0x0001); |
| 382 | if (offset & 0x0003) { |
| 383 | /* Unaligned access */ |
| 384 | b43_shm_control_word(dev, routing, offset >> 2); |
| 385 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); |
| 386 | ret <<= 16; |
| 387 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); |
| 388 | ret |= b43_read16(dev, B43_MMIO_SHM_DATA); |
| 389 | |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 390 | goto out; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 391 | } |
| 392 | offset >>= 2; |
| 393 | } |
| 394 | b43_shm_control_word(dev, routing, offset); |
| 395 | ret = b43_read32(dev, B43_MMIO_SHM_DATA); |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 396 | out: |
Michael Buesch | 6bbc321 | 2008-06-19 19:33:51 +0200 | [diff] [blame] | 397 | return ret; |
| 398 | } |
| 399 | |
| 400 | u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) |
| 401 | { |
| 402 | struct b43_wl *wl = dev->wl; |
| 403 | unsigned long flags; |
| 404 | u32 ret; |
| 405 | |
| 406 | spin_lock_irqsave(&wl->shm_lock, flags); |
| 407 | ret = __b43_shm_read32(dev, routing, offset); |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 408 | spin_unlock_irqrestore(&wl->shm_lock, flags); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 409 | |
| 410 | return ret; |
| 411 | } |
| 412 | |
Michael Buesch | 6bbc321 | 2008-06-19 19:33:51 +0200 | [diff] [blame] | 413 | u16 __b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 414 | { |
| 415 | u16 ret; |
| 416 | |
| 417 | if (routing == B43_SHM_SHARED) { |
| 418 | B43_WARN_ON(offset & 0x0001); |
| 419 | if (offset & 0x0003) { |
| 420 | /* Unaligned access */ |
| 421 | b43_shm_control_word(dev, routing, offset >> 2); |
| 422 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); |
| 423 | |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 424 | goto out; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 425 | } |
| 426 | offset >>= 2; |
| 427 | } |
| 428 | b43_shm_control_word(dev, routing, offset); |
| 429 | ret = b43_read16(dev, B43_MMIO_SHM_DATA); |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 430 | out: |
Michael Buesch | 6bbc321 | 2008-06-19 19:33:51 +0200 | [diff] [blame] | 431 | return ret; |
| 432 | } |
| 433 | |
| 434 | u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) |
| 435 | { |
| 436 | struct b43_wl *wl = dev->wl; |
| 437 | unsigned long flags; |
| 438 | u16 ret; |
| 439 | |
| 440 | spin_lock_irqsave(&wl->shm_lock, flags); |
| 441 | ret = __b43_shm_read16(dev, routing, offset); |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 442 | spin_unlock_irqrestore(&wl->shm_lock, flags); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 443 | |
| 444 | return ret; |
| 445 | } |
| 446 | |
Michael Buesch | 6bbc321 | 2008-06-19 19:33:51 +0200 | [diff] [blame] | 447 | void __b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 448 | { |
| 449 | if (routing == B43_SHM_SHARED) { |
| 450 | B43_WARN_ON(offset & 0x0001); |
| 451 | if (offset & 0x0003) { |
| 452 | /* Unaligned access */ |
| 453 | b43_shm_control_word(dev, routing, offset >> 2); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 454 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, |
| 455 | (value >> 16) & 0xffff); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 456 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 457 | b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff); |
Michael Buesch | 6bbc321 | 2008-06-19 19:33:51 +0200 | [diff] [blame] | 458 | return; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 459 | } |
| 460 | offset >>= 2; |
| 461 | } |
| 462 | b43_shm_control_word(dev, routing, offset); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 463 | b43_write32(dev, B43_MMIO_SHM_DATA, value); |
Michael Buesch | 6bbc321 | 2008-06-19 19:33:51 +0200 | [diff] [blame] | 464 | } |
| 465 | |
| 466 | void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) |
| 467 | { |
| 468 | struct b43_wl *wl = dev->wl; |
| 469 | unsigned long flags; |
| 470 | |
| 471 | spin_lock_irqsave(&wl->shm_lock, flags); |
| 472 | __b43_shm_write32(dev, routing, offset, value); |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 473 | spin_unlock_irqrestore(&wl->shm_lock, flags); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 474 | } |
| 475 | |
Michael Buesch | 6bbc321 | 2008-06-19 19:33:51 +0200 | [diff] [blame] | 476 | void __b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) |
| 477 | { |
| 478 | if (routing == B43_SHM_SHARED) { |
| 479 | B43_WARN_ON(offset & 0x0001); |
| 480 | if (offset & 0x0003) { |
| 481 | /* Unaligned access */ |
| 482 | b43_shm_control_word(dev, routing, offset >> 2); |
| 483 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value); |
| 484 | return; |
| 485 | } |
| 486 | offset >>= 2; |
| 487 | } |
| 488 | b43_shm_control_word(dev, routing, offset); |
| 489 | b43_write16(dev, B43_MMIO_SHM_DATA, value); |
| 490 | } |
| 491 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 492 | void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) |
| 493 | { |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 494 | struct b43_wl *wl = dev->wl; |
| 495 | unsigned long flags; |
| 496 | |
| 497 | spin_lock_irqsave(&wl->shm_lock, flags); |
Michael Buesch | 6bbc321 | 2008-06-19 19:33:51 +0200 | [diff] [blame] | 498 | __b43_shm_write16(dev, routing, offset, value); |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 499 | spin_unlock_irqrestore(&wl->shm_lock, flags); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 500 | } |
| 501 | |
| 502 | /* Read HostFlags */ |
Michael Buesch | 35f0d35 | 2008-02-13 14:31:08 +0100 | [diff] [blame] | 503 | u64 b43_hf_read(struct b43_wldev * dev) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 504 | { |
Michael Buesch | 35f0d35 | 2008-02-13 14:31:08 +0100 | [diff] [blame] | 505 | u64 ret; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 506 | |
| 507 | ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI); |
| 508 | ret <<= 16; |
Michael Buesch | 35f0d35 | 2008-02-13 14:31:08 +0100 | [diff] [blame] | 509 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI); |
| 510 | ret <<= 16; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 511 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO); |
| 512 | |
| 513 | return ret; |
| 514 | } |
| 515 | |
| 516 | /* Write HostFlags */ |
Michael Buesch | 35f0d35 | 2008-02-13 14:31:08 +0100 | [diff] [blame] | 517 | void b43_hf_write(struct b43_wldev *dev, u64 value) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 518 | { |
Michael Buesch | 35f0d35 | 2008-02-13 14:31:08 +0100 | [diff] [blame] | 519 | u16 lo, mi, hi; |
| 520 | |
| 521 | lo = (value & 0x00000000FFFFULL); |
| 522 | mi = (value & 0x0000FFFF0000ULL) >> 16; |
| 523 | hi = (value & 0xFFFF00000000ULL) >> 32; |
| 524 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo); |
| 525 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi); |
| 526 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 527 | } |
| 528 | |
| 529 | void b43_tsf_read(struct b43_wldev *dev, u64 * tsf) |
| 530 | { |
| 531 | /* We need to be careful. As we read the TSF from multiple |
| 532 | * registers, we should take care of register overflows. |
| 533 | * In theory, the whole tsf read process should be atomic. |
| 534 | * We try to be atomic here, by restaring the read process, |
| 535 | * if any of the high registers changed (overflew). |
| 536 | */ |
| 537 | if (dev->dev->id.revision >= 3) { |
| 538 | u32 low, high, high2; |
| 539 | |
| 540 | do { |
| 541 | high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); |
| 542 | low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW); |
| 543 | high2 = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); |
| 544 | } while (unlikely(high != high2)); |
| 545 | |
| 546 | *tsf = high; |
| 547 | *tsf <<= 32; |
| 548 | *tsf |= low; |
| 549 | } else { |
| 550 | u64 tmp; |
| 551 | u16 v0, v1, v2, v3; |
| 552 | u16 test1, test2, test3; |
| 553 | |
| 554 | do { |
| 555 | v3 = b43_read16(dev, B43_MMIO_TSF_3); |
| 556 | v2 = b43_read16(dev, B43_MMIO_TSF_2); |
| 557 | v1 = b43_read16(dev, B43_MMIO_TSF_1); |
| 558 | v0 = b43_read16(dev, B43_MMIO_TSF_0); |
| 559 | |
| 560 | test3 = b43_read16(dev, B43_MMIO_TSF_3); |
| 561 | test2 = b43_read16(dev, B43_MMIO_TSF_2); |
| 562 | test1 = b43_read16(dev, B43_MMIO_TSF_1); |
| 563 | } while (v3 != test3 || v2 != test2 || v1 != test1); |
| 564 | |
| 565 | *tsf = v3; |
| 566 | *tsf <<= 48; |
| 567 | tmp = v2; |
| 568 | tmp <<= 32; |
| 569 | *tsf |= tmp; |
| 570 | tmp = v1; |
| 571 | tmp <<= 16; |
| 572 | *tsf |= tmp; |
| 573 | *tsf |= v0; |
| 574 | } |
| 575 | } |
| 576 | |
| 577 | static void b43_time_lock(struct b43_wldev *dev) |
| 578 | { |
| 579 | u32 macctl; |
| 580 | |
| 581 | macctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 582 | macctl |= B43_MACCTL_TBTTHOLD; |
| 583 | b43_write32(dev, B43_MMIO_MACCTL, macctl); |
| 584 | /* Commit the write */ |
| 585 | b43_read32(dev, B43_MMIO_MACCTL); |
| 586 | } |
| 587 | |
| 588 | static void b43_time_unlock(struct b43_wldev *dev) |
| 589 | { |
| 590 | u32 macctl; |
| 591 | |
| 592 | macctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 593 | macctl &= ~B43_MACCTL_TBTTHOLD; |
| 594 | b43_write32(dev, B43_MMIO_MACCTL, macctl); |
| 595 | /* Commit the write */ |
| 596 | b43_read32(dev, B43_MMIO_MACCTL); |
| 597 | } |
| 598 | |
| 599 | static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf) |
| 600 | { |
| 601 | /* Be careful with the in-progress timer. |
| 602 | * First zero out the low register, so we have a full |
| 603 | * register-overflow duration to complete the operation. |
| 604 | */ |
| 605 | if (dev->dev->id.revision >= 3) { |
| 606 | u32 lo = (tsf & 0x00000000FFFFFFFFULL); |
| 607 | u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32; |
| 608 | |
| 609 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, 0); |
| 610 | mmiowb(); |
| 611 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, hi); |
| 612 | mmiowb(); |
| 613 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, lo); |
| 614 | } else { |
| 615 | u16 v0 = (tsf & 0x000000000000FFFFULL); |
| 616 | u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16; |
| 617 | u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32; |
| 618 | u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48; |
| 619 | |
| 620 | b43_write16(dev, B43_MMIO_TSF_0, 0); |
| 621 | mmiowb(); |
| 622 | b43_write16(dev, B43_MMIO_TSF_3, v3); |
| 623 | mmiowb(); |
| 624 | b43_write16(dev, B43_MMIO_TSF_2, v2); |
| 625 | mmiowb(); |
| 626 | b43_write16(dev, B43_MMIO_TSF_1, v1); |
| 627 | mmiowb(); |
| 628 | b43_write16(dev, B43_MMIO_TSF_0, v0); |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | void b43_tsf_write(struct b43_wldev *dev, u64 tsf) |
| 633 | { |
| 634 | b43_time_lock(dev); |
| 635 | b43_tsf_write_locked(dev, tsf); |
| 636 | b43_time_unlock(dev); |
| 637 | } |
| 638 | |
| 639 | static |
| 640 | void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 * mac) |
| 641 | { |
| 642 | static const u8 zero_addr[ETH_ALEN] = { 0 }; |
| 643 | u16 data; |
| 644 | |
| 645 | if (!mac) |
| 646 | mac = zero_addr; |
| 647 | |
| 648 | offset |= 0x0020; |
| 649 | b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset); |
| 650 | |
| 651 | data = mac[0]; |
| 652 | data |= mac[1] << 8; |
| 653 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); |
| 654 | data = mac[2]; |
| 655 | data |= mac[3] << 8; |
| 656 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); |
| 657 | data = mac[4]; |
| 658 | data |= mac[5] << 8; |
| 659 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); |
| 660 | } |
| 661 | |
| 662 | static void b43_write_mac_bssid_templates(struct b43_wldev *dev) |
| 663 | { |
| 664 | const u8 *mac; |
| 665 | const u8 *bssid; |
| 666 | u8 mac_bssid[ETH_ALEN * 2]; |
| 667 | int i; |
| 668 | u32 tmp; |
| 669 | |
| 670 | bssid = dev->wl->bssid; |
| 671 | mac = dev->wl->mac_addr; |
| 672 | |
| 673 | b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid); |
| 674 | |
| 675 | memcpy(mac_bssid, mac, ETH_ALEN); |
| 676 | memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); |
| 677 | |
| 678 | /* Write our MAC address and BSSID to template ram */ |
| 679 | for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) { |
| 680 | tmp = (u32) (mac_bssid[i + 0]); |
| 681 | tmp |= (u32) (mac_bssid[i + 1]) << 8; |
| 682 | tmp |= (u32) (mac_bssid[i + 2]) << 16; |
| 683 | tmp |= (u32) (mac_bssid[i + 3]) << 24; |
| 684 | b43_ram_write(dev, 0x20 + i, tmp); |
| 685 | } |
| 686 | } |
| 687 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 688 | static void b43_upload_card_macaddress(struct b43_wldev *dev) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 689 | { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 690 | b43_write_mac_bssid_templates(dev); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 691 | b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 692 | } |
| 693 | |
| 694 | static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) |
| 695 | { |
| 696 | /* slot_time is in usec. */ |
| 697 | if (dev->phy.type != B43_PHYTYPE_G) |
| 698 | return; |
| 699 | b43_write16(dev, 0x684, 510 + slot_time); |
| 700 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); |
| 701 | } |
| 702 | |
| 703 | static void b43_short_slot_timing_enable(struct b43_wldev *dev) |
| 704 | { |
| 705 | b43_set_slot_time(dev, 9); |
| 706 | dev->short_slot = 1; |
| 707 | } |
| 708 | |
| 709 | static void b43_short_slot_timing_disable(struct b43_wldev *dev) |
| 710 | { |
| 711 | b43_set_slot_time(dev, 20); |
| 712 | dev->short_slot = 0; |
| 713 | } |
| 714 | |
| 715 | /* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable. |
| 716 | * Returns the _previously_ enabled IRQ mask. |
| 717 | */ |
| 718 | static inline u32 b43_interrupt_enable(struct b43_wldev *dev, u32 mask) |
| 719 | { |
| 720 | u32 old_mask; |
| 721 | |
| 722 | old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); |
| 723 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask | mask); |
| 724 | |
| 725 | return old_mask; |
| 726 | } |
| 727 | |
| 728 | /* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable. |
| 729 | * Returns the _previously_ enabled IRQ mask. |
| 730 | */ |
| 731 | static inline u32 b43_interrupt_disable(struct b43_wldev *dev, u32 mask) |
| 732 | { |
| 733 | u32 old_mask; |
| 734 | |
| 735 | old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); |
| 736 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask & ~mask); |
| 737 | |
| 738 | return old_mask; |
| 739 | } |
| 740 | |
| 741 | /* Synchronize IRQ top- and bottom-half. |
| 742 | * IRQs must be masked before calling this. |
| 743 | * This must not be called with the irq_lock held. |
| 744 | */ |
| 745 | static void b43_synchronize_irq(struct b43_wldev *dev) |
| 746 | { |
| 747 | synchronize_irq(dev->dev->irq); |
| 748 | tasklet_kill(&dev->isr_tasklet); |
| 749 | } |
| 750 | |
| 751 | /* DummyTransmission function, as documented on |
| 752 | * http://bcm-specs.sipsolutions.net/DummyTransmission |
| 753 | */ |
| 754 | void b43_dummy_transmission(struct b43_wldev *dev) |
| 755 | { |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 756 | struct b43_wl *wl = dev->wl; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 757 | struct b43_phy *phy = &dev->phy; |
| 758 | unsigned int i, max_loop; |
| 759 | u16 value; |
| 760 | u32 buffer[5] = { |
| 761 | 0x00000000, |
| 762 | 0x00D40000, |
| 763 | 0x00000000, |
| 764 | 0x01000000, |
| 765 | 0x00000000, |
| 766 | }; |
| 767 | |
| 768 | switch (phy->type) { |
| 769 | case B43_PHYTYPE_A: |
| 770 | max_loop = 0x1E; |
| 771 | buffer[0] = 0x000201CC; |
| 772 | break; |
| 773 | case B43_PHYTYPE_B: |
| 774 | case B43_PHYTYPE_G: |
| 775 | max_loop = 0xFA; |
| 776 | buffer[0] = 0x000B846E; |
| 777 | break; |
| 778 | default: |
| 779 | B43_WARN_ON(1); |
| 780 | return; |
| 781 | } |
| 782 | |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 783 | spin_lock_irq(&wl->irq_lock); |
| 784 | write_lock(&wl->tx_lock); |
| 785 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 786 | for (i = 0; i < 5; i++) |
| 787 | b43_ram_write(dev, i * 4, buffer[i]); |
| 788 | |
| 789 | /* Commit writes */ |
| 790 | b43_read32(dev, B43_MMIO_MACCTL); |
| 791 | |
| 792 | b43_write16(dev, 0x0568, 0x0000); |
| 793 | b43_write16(dev, 0x07C0, 0x0000); |
| 794 | value = ((phy->type == B43_PHYTYPE_A) ? 1 : 0); |
| 795 | b43_write16(dev, 0x050C, value); |
| 796 | b43_write16(dev, 0x0508, 0x0000); |
| 797 | b43_write16(dev, 0x050A, 0x0000); |
| 798 | b43_write16(dev, 0x054C, 0x0000); |
| 799 | b43_write16(dev, 0x056A, 0x0014); |
| 800 | b43_write16(dev, 0x0568, 0x0826); |
| 801 | b43_write16(dev, 0x0500, 0x0000); |
| 802 | b43_write16(dev, 0x0502, 0x0030); |
| 803 | |
| 804 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) |
| 805 | b43_radio_write16(dev, 0x0051, 0x0017); |
| 806 | for (i = 0x00; i < max_loop; i++) { |
| 807 | value = b43_read16(dev, 0x050E); |
| 808 | if (value & 0x0080) |
| 809 | break; |
| 810 | udelay(10); |
| 811 | } |
| 812 | for (i = 0x00; i < 0x0A; i++) { |
| 813 | value = b43_read16(dev, 0x050E); |
| 814 | if (value & 0x0400) |
| 815 | break; |
| 816 | udelay(10); |
| 817 | } |
| 818 | for (i = 0x00; i < 0x0A; i++) { |
| 819 | value = b43_read16(dev, 0x0690); |
| 820 | if (!(value & 0x0100)) |
| 821 | break; |
| 822 | udelay(10); |
| 823 | } |
| 824 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) |
| 825 | b43_radio_write16(dev, 0x0051, 0x0037); |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 826 | |
| 827 | write_unlock(&wl->tx_lock); |
| 828 | spin_unlock_irq(&wl->irq_lock); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 829 | } |
| 830 | |
| 831 | static void key_write(struct b43_wldev *dev, |
| 832 | u8 index, u8 algorithm, const u8 * key) |
| 833 | { |
| 834 | unsigned int i; |
| 835 | u32 offset; |
| 836 | u16 value; |
| 837 | u16 kidx; |
| 838 | |
| 839 | /* Key index/algo block */ |
| 840 | kidx = b43_kidx_to_fw(dev, index); |
| 841 | value = ((kidx << 4) | algorithm); |
| 842 | b43_shm_write16(dev, B43_SHM_SHARED, |
| 843 | B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value); |
| 844 | |
| 845 | /* Write the key to the Key Table Pointer offset */ |
| 846 | offset = dev->ktp + (index * B43_SEC_KEYSIZE); |
| 847 | for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { |
| 848 | value = key[i]; |
| 849 | value |= (u16) (key[i + 1]) << 8; |
| 850 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value); |
| 851 | } |
| 852 | } |
| 853 | |
| 854 | static void keymac_write(struct b43_wldev *dev, u8 index, const u8 * addr) |
| 855 | { |
| 856 | u32 addrtmp[2] = { 0, 0, }; |
| 857 | u8 per_sta_keys_start = 8; |
| 858 | |
| 859 | if (b43_new_kidx_api(dev)) |
| 860 | per_sta_keys_start = 4; |
| 861 | |
| 862 | B43_WARN_ON(index < per_sta_keys_start); |
| 863 | /* We have two default TX keys and possibly two default RX keys. |
| 864 | * Physical mac 0 is mapped to physical key 4 or 8, depending |
| 865 | * on the firmware version. |
| 866 | * So we must adjust the index here. |
| 867 | */ |
| 868 | index -= per_sta_keys_start; |
| 869 | |
| 870 | if (addr) { |
| 871 | addrtmp[0] = addr[0]; |
| 872 | addrtmp[0] |= ((u32) (addr[1]) << 8); |
| 873 | addrtmp[0] |= ((u32) (addr[2]) << 16); |
| 874 | addrtmp[0] |= ((u32) (addr[3]) << 24); |
| 875 | addrtmp[1] = addr[4]; |
| 876 | addrtmp[1] |= ((u32) (addr[5]) << 8); |
| 877 | } |
| 878 | |
| 879 | if (dev->dev->id.revision >= 5) { |
| 880 | /* Receive match transmitter address mechanism */ |
| 881 | b43_shm_write32(dev, B43_SHM_RCMTA, |
| 882 | (index * 2) + 0, addrtmp[0]); |
| 883 | b43_shm_write16(dev, B43_SHM_RCMTA, |
| 884 | (index * 2) + 1, addrtmp[1]); |
| 885 | } else { |
| 886 | /* RXE (Receive Engine) and |
| 887 | * PSM (Programmable State Machine) mechanism |
| 888 | */ |
| 889 | if (index < 8) { |
| 890 | /* TODO write to RCM 16, 19, 22 and 25 */ |
| 891 | } else { |
| 892 | b43_shm_write32(dev, B43_SHM_SHARED, |
| 893 | B43_SHM_SH_PSM + (index * 6) + 0, |
| 894 | addrtmp[0]); |
| 895 | b43_shm_write16(dev, B43_SHM_SHARED, |
| 896 | B43_SHM_SH_PSM + (index * 6) + 4, |
| 897 | addrtmp[1]); |
| 898 | } |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | static void do_key_write(struct b43_wldev *dev, |
| 903 | u8 index, u8 algorithm, |
| 904 | const u8 * key, size_t key_len, const u8 * mac_addr) |
| 905 | { |
| 906 | u8 buf[B43_SEC_KEYSIZE] = { 0, }; |
| 907 | u8 per_sta_keys_start = 8; |
| 908 | |
| 909 | if (b43_new_kidx_api(dev)) |
| 910 | per_sta_keys_start = 4; |
| 911 | |
| 912 | B43_WARN_ON(index >= dev->max_nr_keys); |
| 913 | B43_WARN_ON(key_len > B43_SEC_KEYSIZE); |
| 914 | |
| 915 | if (index >= per_sta_keys_start) |
| 916 | keymac_write(dev, index, NULL); /* First zero out mac. */ |
| 917 | if (key) |
| 918 | memcpy(buf, key, key_len); |
| 919 | key_write(dev, index, algorithm, buf); |
| 920 | if (index >= per_sta_keys_start) |
| 921 | keymac_write(dev, index, mac_addr); |
| 922 | |
| 923 | dev->key[index].algorithm = algorithm; |
| 924 | } |
| 925 | |
| 926 | static int b43_key_write(struct b43_wldev *dev, |
| 927 | int index, u8 algorithm, |
| 928 | const u8 * key, size_t key_len, |
| 929 | const u8 * mac_addr, |
| 930 | struct ieee80211_key_conf *keyconf) |
| 931 | { |
| 932 | int i; |
| 933 | int sta_keys_start; |
| 934 | |
| 935 | if (key_len > B43_SEC_KEYSIZE) |
| 936 | return -EINVAL; |
| 937 | for (i = 0; i < dev->max_nr_keys; i++) { |
| 938 | /* Check that we don't already have this key. */ |
| 939 | B43_WARN_ON(dev->key[i].keyconf == keyconf); |
| 940 | } |
| 941 | if (index < 0) { |
| 942 | /* Either pairwise key or address is 00:00:00:00:00:00 |
| 943 | * for transmit-only keys. Search the index. */ |
| 944 | if (b43_new_kidx_api(dev)) |
| 945 | sta_keys_start = 4; |
| 946 | else |
| 947 | sta_keys_start = 8; |
| 948 | for (i = sta_keys_start; i < dev->max_nr_keys; i++) { |
| 949 | if (!dev->key[i].keyconf) { |
| 950 | /* found empty */ |
| 951 | index = i; |
| 952 | break; |
| 953 | } |
| 954 | } |
| 955 | if (index < 0) { |
| 956 | b43err(dev->wl, "Out of hardware key memory\n"); |
| 957 | return -ENOSPC; |
| 958 | } |
| 959 | } else |
| 960 | B43_WARN_ON(index > 3); |
| 961 | |
| 962 | do_key_write(dev, index, algorithm, key, key_len, mac_addr); |
| 963 | if ((index <= 3) && !b43_new_kidx_api(dev)) { |
| 964 | /* Default RX key */ |
| 965 | B43_WARN_ON(mac_addr); |
| 966 | do_key_write(dev, index + 4, algorithm, key, key_len, NULL); |
| 967 | } |
| 968 | keyconf->hw_key_idx = index; |
| 969 | dev->key[index].keyconf = keyconf; |
| 970 | |
| 971 | return 0; |
| 972 | } |
| 973 | |
| 974 | static int b43_key_clear(struct b43_wldev *dev, int index) |
| 975 | { |
| 976 | if (B43_WARN_ON((index < 0) || (index >= dev->max_nr_keys))) |
| 977 | return -EINVAL; |
| 978 | do_key_write(dev, index, B43_SEC_ALGO_NONE, |
| 979 | NULL, B43_SEC_KEYSIZE, NULL); |
| 980 | if ((index <= 3) && !b43_new_kidx_api(dev)) { |
| 981 | do_key_write(dev, index + 4, B43_SEC_ALGO_NONE, |
| 982 | NULL, B43_SEC_KEYSIZE, NULL); |
| 983 | } |
| 984 | dev->key[index].keyconf = NULL; |
| 985 | |
| 986 | return 0; |
| 987 | } |
| 988 | |
| 989 | static void b43_clear_keys(struct b43_wldev *dev) |
| 990 | { |
| 991 | int i; |
| 992 | |
| 993 | for (i = 0; i < dev->max_nr_keys; i++) |
| 994 | b43_key_clear(dev, i); |
| 995 | } |
| 996 | |
| 997 | void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags) |
| 998 | { |
| 999 | u32 macctl; |
| 1000 | u16 ucstat; |
| 1001 | bool hwps; |
| 1002 | bool awake; |
| 1003 | int i; |
| 1004 | |
| 1005 | B43_WARN_ON((ps_flags & B43_PS_ENABLED) && |
| 1006 | (ps_flags & B43_PS_DISABLED)); |
| 1007 | B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP)); |
| 1008 | |
| 1009 | if (ps_flags & B43_PS_ENABLED) { |
| 1010 | hwps = 1; |
| 1011 | } else if (ps_flags & B43_PS_DISABLED) { |
| 1012 | hwps = 0; |
| 1013 | } else { |
| 1014 | //TODO: If powersave is not off and FIXME is not set and we are not in adhoc |
| 1015 | // and thus is not an AP and we are associated, set bit 25 |
| 1016 | } |
| 1017 | if (ps_flags & B43_PS_AWAKE) { |
| 1018 | awake = 1; |
| 1019 | } else if (ps_flags & B43_PS_ASLEEP) { |
| 1020 | awake = 0; |
| 1021 | } else { |
| 1022 | //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME, |
| 1023 | // or we are associated, or FIXME, or the latest PS-Poll packet sent was |
| 1024 | // successful, set bit26 |
| 1025 | } |
| 1026 | |
| 1027 | /* FIXME: For now we force awake-on and hwps-off */ |
| 1028 | hwps = 0; |
| 1029 | awake = 1; |
| 1030 | |
| 1031 | macctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 1032 | if (hwps) |
| 1033 | macctl |= B43_MACCTL_HWPS; |
| 1034 | else |
| 1035 | macctl &= ~B43_MACCTL_HWPS; |
| 1036 | if (awake) |
| 1037 | macctl |= B43_MACCTL_AWAKE; |
| 1038 | else |
| 1039 | macctl &= ~B43_MACCTL_AWAKE; |
| 1040 | b43_write32(dev, B43_MMIO_MACCTL, macctl); |
| 1041 | /* Commit write */ |
| 1042 | b43_read32(dev, B43_MMIO_MACCTL); |
| 1043 | if (awake && dev->dev->id.revision >= 5) { |
| 1044 | /* Wait for the microcode to wake up. */ |
| 1045 | for (i = 0; i < 100; i++) { |
| 1046 | ucstat = b43_shm_read16(dev, B43_SHM_SHARED, |
| 1047 | B43_SHM_SH_UCODESTAT); |
| 1048 | if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP) |
| 1049 | break; |
| 1050 | udelay(10); |
| 1051 | } |
| 1052 | } |
| 1053 | } |
| 1054 | |
| 1055 | /* Turn the Analog ON/OFF */ |
| 1056 | static void b43_switch_analog(struct b43_wldev *dev, int on) |
| 1057 | { |
Michael Buesch | 7b58416 | 2008-04-03 18:01:12 +0200 | [diff] [blame] | 1058 | switch (dev->phy.type) { |
| 1059 | case B43_PHYTYPE_A: |
| 1060 | case B43_PHYTYPE_G: |
| 1061 | b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4); |
| 1062 | break; |
| 1063 | case B43_PHYTYPE_N: |
| 1064 | b43_phy_write(dev, B43_NPHY_AFECTL_OVER, |
| 1065 | on ? 0 : 0x7FFF); |
| 1066 | break; |
| 1067 | default: |
| 1068 | B43_WARN_ON(1); |
| 1069 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1070 | } |
| 1071 | |
| 1072 | void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags) |
| 1073 | { |
| 1074 | u32 tmslow; |
| 1075 | u32 macctl; |
| 1076 | |
| 1077 | flags |= B43_TMSLOW_PHYCLKEN; |
| 1078 | flags |= B43_TMSLOW_PHYRESET; |
| 1079 | ssb_device_enable(dev->dev, flags); |
| 1080 | msleep(2); /* Wait for the PLL to turn on. */ |
| 1081 | |
| 1082 | /* Now take the PHY out of Reset again */ |
| 1083 | tmslow = ssb_read32(dev->dev, SSB_TMSLOW); |
| 1084 | tmslow |= SSB_TMSLOW_FGC; |
| 1085 | tmslow &= ~B43_TMSLOW_PHYRESET; |
| 1086 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); |
| 1087 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ |
| 1088 | msleep(1); |
| 1089 | tmslow &= ~SSB_TMSLOW_FGC; |
| 1090 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); |
| 1091 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ |
| 1092 | msleep(1); |
| 1093 | |
| 1094 | /* Turn Analog ON */ |
| 1095 | b43_switch_analog(dev, 1); |
| 1096 | |
| 1097 | macctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 1098 | macctl &= ~B43_MACCTL_GMODE; |
| 1099 | if (flags & B43_TMSLOW_GMODE) |
| 1100 | macctl |= B43_MACCTL_GMODE; |
| 1101 | macctl |= B43_MACCTL_IHR_ENABLED; |
| 1102 | b43_write32(dev, B43_MMIO_MACCTL, macctl); |
| 1103 | } |
| 1104 | |
| 1105 | static void handle_irq_transmit_status(struct b43_wldev *dev) |
| 1106 | { |
| 1107 | u32 v0, v1; |
| 1108 | u16 tmp; |
| 1109 | struct b43_txstatus stat; |
| 1110 | |
| 1111 | while (1) { |
| 1112 | v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0); |
| 1113 | if (!(v0 & 0x00000001)) |
| 1114 | break; |
| 1115 | v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1); |
| 1116 | |
| 1117 | stat.cookie = (v0 >> 16); |
| 1118 | stat.seq = (v1 & 0x0000FFFF); |
| 1119 | stat.phy_stat = ((v1 & 0x00FF0000) >> 16); |
| 1120 | tmp = (v0 & 0x0000FFFF); |
| 1121 | stat.frame_count = ((tmp & 0xF000) >> 12); |
| 1122 | stat.rts_count = ((tmp & 0x0F00) >> 8); |
| 1123 | stat.supp_reason = ((tmp & 0x001C) >> 2); |
| 1124 | stat.pm_indicated = !!(tmp & 0x0080); |
| 1125 | stat.intermediate = !!(tmp & 0x0040); |
| 1126 | stat.for_ampdu = !!(tmp & 0x0020); |
| 1127 | stat.acked = !!(tmp & 0x0002); |
| 1128 | |
| 1129 | b43_handle_txstatus(dev, &stat); |
| 1130 | } |
| 1131 | } |
| 1132 | |
| 1133 | static void drain_txstatus_queue(struct b43_wldev *dev) |
| 1134 | { |
| 1135 | u32 dummy; |
| 1136 | |
| 1137 | if (dev->dev->id.revision < 5) |
| 1138 | return; |
| 1139 | /* Read all entries from the microcode TXstatus FIFO |
| 1140 | * and throw them away. |
| 1141 | */ |
| 1142 | while (1) { |
| 1143 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0); |
| 1144 | if (!(dummy & 0x00000001)) |
| 1145 | break; |
| 1146 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1); |
| 1147 | } |
| 1148 | } |
| 1149 | |
| 1150 | static u32 b43_jssi_read(struct b43_wldev *dev) |
| 1151 | { |
| 1152 | u32 val = 0; |
| 1153 | |
| 1154 | val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A); |
| 1155 | val <<= 16; |
| 1156 | val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088); |
| 1157 | |
| 1158 | return val; |
| 1159 | } |
| 1160 | |
| 1161 | static void b43_jssi_write(struct b43_wldev *dev, u32 jssi) |
| 1162 | { |
| 1163 | b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF)); |
| 1164 | b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16); |
| 1165 | } |
| 1166 | |
| 1167 | static void b43_generate_noise_sample(struct b43_wldev *dev) |
| 1168 | { |
| 1169 | b43_jssi_write(dev, 0x7F7F7F7F); |
Michael Buesch | aa6c7ae | 2007-12-26 16:26:36 +0100 | [diff] [blame] | 1170 | b43_write32(dev, B43_MMIO_MACCMD, |
| 1171 | b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1172 | } |
| 1173 | |
| 1174 | static void b43_calculate_link_quality(struct b43_wldev *dev) |
| 1175 | { |
| 1176 | /* Top half of Link Quality calculation. */ |
| 1177 | |
| 1178 | if (dev->noisecalc.calculation_running) |
| 1179 | return; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1180 | dev->noisecalc.calculation_running = 1; |
| 1181 | dev->noisecalc.nr_samples = 0; |
| 1182 | |
| 1183 | b43_generate_noise_sample(dev); |
| 1184 | } |
| 1185 | |
| 1186 | static void handle_irq_noise(struct b43_wldev *dev) |
| 1187 | { |
| 1188 | struct b43_phy *phy = &dev->phy; |
| 1189 | u16 tmp; |
| 1190 | u8 noise[4]; |
| 1191 | u8 i, j; |
| 1192 | s32 average; |
| 1193 | |
| 1194 | /* Bottom half of Link Quality calculation. */ |
| 1195 | |
Michael Buesch | 98a3b2f | 2008-06-12 12:36:29 +0200 | [diff] [blame] | 1196 | /* Possible race condition: It might be possible that the user |
| 1197 | * changed to a different channel in the meantime since we |
| 1198 | * started the calculation. We ignore that fact, since it's |
| 1199 | * not really that much of a problem. The background noise is |
| 1200 | * an estimation only anyway. Slightly wrong results will get damped |
| 1201 | * by the averaging of the 8 sample rounds. Additionally the |
| 1202 | * value is shortlived. So it will be replaced by the next noise |
| 1203 | * calculation round soon. */ |
| 1204 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1205 | B43_WARN_ON(!dev->noisecalc.calculation_running); |
Michael Buesch | 1a09404 | 2007-09-20 11:13:40 -0700 | [diff] [blame] | 1206 | *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1207 | if (noise[0] == 0x7F || noise[1] == 0x7F || |
| 1208 | noise[2] == 0x7F || noise[3] == 0x7F) |
| 1209 | goto generate_new; |
| 1210 | |
| 1211 | /* Get the noise samples. */ |
| 1212 | B43_WARN_ON(dev->noisecalc.nr_samples >= 8); |
| 1213 | i = dev->noisecalc.nr_samples; |
Harvey Harrison | cdbf084 | 2008-05-02 13:47:48 -0700 | [diff] [blame] | 1214 | noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
| 1215 | noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
| 1216 | noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
| 1217 | noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1218 | dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]]; |
| 1219 | dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]]; |
| 1220 | dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]]; |
| 1221 | dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]]; |
| 1222 | dev->noisecalc.nr_samples++; |
| 1223 | if (dev->noisecalc.nr_samples == 8) { |
| 1224 | /* Calculate the Link Quality by the noise samples. */ |
| 1225 | average = 0; |
| 1226 | for (i = 0; i < 8; i++) { |
| 1227 | for (j = 0; j < 4; j++) |
| 1228 | average += dev->noisecalc.samples[i][j]; |
| 1229 | } |
| 1230 | average /= (8 * 4); |
| 1231 | average *= 125; |
| 1232 | average += 64; |
| 1233 | average /= 128; |
| 1234 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C); |
| 1235 | tmp = (tmp / 128) & 0x1F; |
| 1236 | if (tmp >= 8) |
| 1237 | average += 2; |
| 1238 | else |
| 1239 | average -= 25; |
| 1240 | if (tmp == 8) |
| 1241 | average -= 72; |
| 1242 | else |
| 1243 | average -= 48; |
| 1244 | |
| 1245 | dev->stats.link_noise = average; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1246 | dev->noisecalc.calculation_running = 0; |
| 1247 | return; |
| 1248 | } |
Michael Buesch | 98a3b2f | 2008-06-12 12:36:29 +0200 | [diff] [blame] | 1249 | generate_new: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1250 | b43_generate_noise_sample(dev); |
| 1251 | } |
| 1252 | |
| 1253 | static void handle_irq_tbtt_indication(struct b43_wldev *dev) |
| 1254 | { |
| 1255 | if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) { |
| 1256 | ///TODO: PS TBTT |
| 1257 | } else { |
| 1258 | if (1 /*FIXME: the last PSpoll frame was sent successfully */ ) |
| 1259 | b43_power_saving_ctl_bits(dev, 0); |
| 1260 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1261 | if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS)) |
Michael Buesch | aa6c7ae | 2007-12-26 16:26:36 +0100 | [diff] [blame] | 1262 | dev->dfq_valid = 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1263 | } |
| 1264 | |
| 1265 | static void handle_irq_atim_end(struct b43_wldev *dev) |
| 1266 | { |
Michael Buesch | aa6c7ae | 2007-12-26 16:26:36 +0100 | [diff] [blame] | 1267 | if (dev->dfq_valid) { |
| 1268 | b43_write32(dev, B43_MMIO_MACCMD, |
| 1269 | b43_read32(dev, B43_MMIO_MACCMD) |
| 1270 | | B43_MACCMD_DFQ_VALID); |
| 1271 | dev->dfq_valid = 0; |
| 1272 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1273 | } |
| 1274 | |
| 1275 | static void handle_irq_pmq(struct b43_wldev *dev) |
| 1276 | { |
| 1277 | u32 tmp; |
| 1278 | |
| 1279 | //TODO: AP mode. |
| 1280 | |
| 1281 | while (1) { |
| 1282 | tmp = b43_read32(dev, B43_MMIO_PS_STATUS); |
| 1283 | if (!(tmp & 0x00000008)) |
| 1284 | break; |
| 1285 | } |
| 1286 | /* 16bit write is odd, but correct. */ |
| 1287 | b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002); |
| 1288 | } |
| 1289 | |
| 1290 | static void b43_write_template_common(struct b43_wldev *dev, |
| 1291 | const u8 * data, u16 size, |
| 1292 | u16 ram_offset, |
| 1293 | u16 shm_size_offset, u8 rate) |
| 1294 | { |
| 1295 | u32 i, tmp; |
| 1296 | struct b43_plcp_hdr4 plcp; |
| 1297 | |
| 1298 | plcp.data = 0; |
| 1299 | b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); |
| 1300 | b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data)); |
| 1301 | ram_offset += sizeof(u32); |
| 1302 | /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet. |
| 1303 | * So leave the first two bytes of the next write blank. |
| 1304 | */ |
| 1305 | tmp = (u32) (data[0]) << 16; |
| 1306 | tmp |= (u32) (data[1]) << 24; |
| 1307 | b43_ram_write(dev, ram_offset, tmp); |
| 1308 | ram_offset += sizeof(u32); |
| 1309 | for (i = 2; i < size; i += sizeof(u32)) { |
| 1310 | tmp = (u32) (data[i + 0]); |
| 1311 | if (i + 1 < size) |
| 1312 | tmp |= (u32) (data[i + 1]) << 8; |
| 1313 | if (i + 2 < size) |
| 1314 | tmp |= (u32) (data[i + 2]) << 16; |
| 1315 | if (i + 3 < size) |
| 1316 | tmp |= (u32) (data[i + 3]) << 24; |
| 1317 | b43_ram_write(dev, ram_offset + i - 2, tmp); |
| 1318 | } |
| 1319 | b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset, |
| 1320 | size + sizeof(struct b43_plcp_hdr6)); |
| 1321 | } |
| 1322 | |
Michael Buesch | 5042c50 | 2008-04-05 15:05:00 +0200 | [diff] [blame] | 1323 | /* Check if the use of the antenna that ieee80211 told us to |
| 1324 | * use is possible. This will fall back to DEFAULT. |
| 1325 | * "antenna_nr" is the antenna identifier we got from ieee80211. */ |
| 1326 | u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev, |
| 1327 | u8 antenna_nr) |
| 1328 | { |
| 1329 | u8 antenna_mask; |
| 1330 | |
| 1331 | if (antenna_nr == 0) { |
| 1332 | /* Zero means "use default antenna". That's always OK. */ |
| 1333 | return 0; |
| 1334 | } |
| 1335 | |
| 1336 | /* Get the mask of available antennas. */ |
| 1337 | if (dev->phy.gmode) |
| 1338 | antenna_mask = dev->dev->bus->sprom.ant_available_bg; |
| 1339 | else |
| 1340 | antenna_mask = dev->dev->bus->sprom.ant_available_a; |
| 1341 | |
| 1342 | if (!(antenna_mask & (1 << (antenna_nr - 1)))) { |
| 1343 | /* This antenna is not available. Fall back to default. */ |
| 1344 | return 0; |
| 1345 | } |
| 1346 | |
| 1347 | return antenna_nr; |
| 1348 | } |
| 1349 | |
| 1350 | static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna) |
| 1351 | { |
| 1352 | antenna = b43_ieee80211_antenna_sanitize(dev, antenna); |
| 1353 | switch (antenna) { |
| 1354 | case 0: /* default/diversity */ |
| 1355 | return B43_ANTENNA_DEFAULT; |
| 1356 | case 1: /* Antenna 0 */ |
| 1357 | return B43_ANTENNA0; |
| 1358 | case 2: /* Antenna 1 */ |
| 1359 | return B43_ANTENNA1; |
| 1360 | case 3: /* Antenna 2 */ |
| 1361 | return B43_ANTENNA2; |
| 1362 | case 4: /* Antenna 3 */ |
| 1363 | return B43_ANTENNA3; |
| 1364 | default: |
| 1365 | return B43_ANTENNA_DEFAULT; |
| 1366 | } |
| 1367 | } |
| 1368 | |
| 1369 | /* Convert a b43 antenna number value to the PHY TX control value. */ |
| 1370 | static u16 b43_antenna_to_phyctl(int antenna) |
| 1371 | { |
| 1372 | switch (antenna) { |
| 1373 | case B43_ANTENNA0: |
| 1374 | return B43_TXH_PHY_ANT0; |
| 1375 | case B43_ANTENNA1: |
| 1376 | return B43_TXH_PHY_ANT1; |
| 1377 | case B43_ANTENNA2: |
| 1378 | return B43_TXH_PHY_ANT2; |
| 1379 | case B43_ANTENNA3: |
| 1380 | return B43_TXH_PHY_ANT3; |
| 1381 | case B43_ANTENNA_AUTO: |
| 1382 | return B43_TXH_PHY_ANT01AUTO; |
| 1383 | } |
| 1384 | B43_WARN_ON(1); |
| 1385 | return 0; |
| 1386 | } |
| 1387 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1388 | static void b43_write_beacon_template(struct b43_wldev *dev, |
| 1389 | u16 ram_offset, |
Michael Buesch | 5042c50 | 2008-04-05 15:05:00 +0200 | [diff] [blame] | 1390 | u16 shm_size_offset) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1391 | { |
Michael Buesch | 47f76ca | 2007-12-27 22:15:11 +0100 | [diff] [blame] | 1392 | unsigned int i, len, variable_len; |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1393 | const struct ieee80211_mgmt *bcn; |
| 1394 | const u8 *ie; |
| 1395 | bool tim_found = 0; |
Michael Buesch | 5042c50 | 2008-04-05 15:05:00 +0200 | [diff] [blame] | 1396 | unsigned int rate; |
| 1397 | u16 ctl; |
| 1398 | int antenna; |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1399 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1400 | |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1401 | bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data); |
| 1402 | len = min((size_t) dev->wl->current_beacon->len, |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1403 | 0x200 - sizeof(struct b43_plcp_hdr6)); |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1404 | rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value; |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1405 | |
| 1406 | b43_write_template_common(dev, (const u8 *)bcn, |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1407 | len, ram_offset, shm_size_offset, rate); |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1408 | |
Michael Buesch | 5042c50 | 2008-04-05 15:05:00 +0200 | [diff] [blame] | 1409 | /* Write the PHY TX control parameters. */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1410 | antenna = b43_antenna_from_ieee80211(dev, info->antenna_sel_tx); |
Michael Buesch | 5042c50 | 2008-04-05 15:05:00 +0200 | [diff] [blame] | 1411 | antenna = b43_antenna_to_phyctl(antenna); |
| 1412 | ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL); |
| 1413 | /* We can't send beacons with short preamble. Would get PHY errors. */ |
| 1414 | ctl &= ~B43_TXH_PHY_SHORTPRMBL; |
| 1415 | ctl &= ~B43_TXH_PHY_ANT; |
| 1416 | ctl &= ~B43_TXH_PHY_ENC; |
| 1417 | ctl |= antenna; |
| 1418 | if (b43_is_cck_rate(rate)) |
| 1419 | ctl |= B43_TXH_PHY_ENC_CCK; |
| 1420 | else |
| 1421 | ctl |= B43_TXH_PHY_ENC_OFDM; |
| 1422 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); |
| 1423 | |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1424 | /* Find the position of the TIM and the DTIM_period value |
| 1425 | * and write them to SHM. */ |
| 1426 | ie = bcn->u.beacon.variable; |
Michael Buesch | 47f76ca | 2007-12-27 22:15:11 +0100 | [diff] [blame] | 1427 | variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable); |
| 1428 | for (i = 0; i < variable_len - 2; ) { |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1429 | uint8_t ie_id, ie_len; |
| 1430 | |
| 1431 | ie_id = ie[i]; |
| 1432 | ie_len = ie[i + 1]; |
| 1433 | if (ie_id == 5) { |
| 1434 | u16 tim_position; |
| 1435 | u16 dtim_period; |
| 1436 | /* This is the TIM Information Element */ |
| 1437 | |
| 1438 | /* Check whether the ie_len is in the beacon data range. */ |
Michael Buesch | 47f76ca | 2007-12-27 22:15:11 +0100 | [diff] [blame] | 1439 | if (variable_len < ie_len + 2 + i) |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1440 | break; |
| 1441 | /* A valid TIM is at least 4 bytes long. */ |
| 1442 | if (ie_len < 4) |
| 1443 | break; |
| 1444 | tim_found = 1; |
| 1445 | |
| 1446 | tim_position = sizeof(struct b43_plcp_hdr6); |
| 1447 | tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable); |
| 1448 | tim_position += i; |
| 1449 | |
| 1450 | dtim_period = ie[i + 3]; |
| 1451 | |
| 1452 | b43_shm_write16(dev, B43_SHM_SHARED, |
| 1453 | B43_SHM_SH_TIMBPOS, tim_position); |
| 1454 | b43_shm_write16(dev, B43_SHM_SHARED, |
| 1455 | B43_SHM_SH_DTIMPER, dtim_period); |
| 1456 | break; |
| 1457 | } |
| 1458 | i += ie_len + 2; |
| 1459 | } |
| 1460 | if (!tim_found) { |
Johannes Berg | 04dea13 | 2008-05-20 12:10:49 +0200 | [diff] [blame] | 1461 | /* |
| 1462 | * If ucode wants to modify TIM do it behind the beacon, this |
| 1463 | * will happen, for example, when doing mesh networking. |
| 1464 | */ |
| 1465 | b43_shm_write16(dev, B43_SHM_SHARED, |
| 1466 | B43_SHM_SH_TIMBPOS, |
| 1467 | len + sizeof(struct b43_plcp_hdr6)); |
| 1468 | b43_shm_write16(dev, B43_SHM_SHARED, |
| 1469 | B43_SHM_SH_DTIMPER, 0); |
| 1470 | } |
| 1471 | b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1472 | } |
| 1473 | |
| 1474 | static void b43_write_probe_resp_plcp(struct b43_wldev *dev, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1475 | u16 shm_offset, u16 size, |
| 1476 | struct ieee80211_rate *rate) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1477 | { |
| 1478 | struct b43_plcp_hdr4 plcp; |
| 1479 | u32 tmp; |
| 1480 | __le16 dur; |
| 1481 | |
| 1482 | plcp.data = 0; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1483 | b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1484 | dur = ieee80211_generic_frame_duration(dev->wl->hw, |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1485 | dev->wl->vif, size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1486 | rate); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1487 | /* Write PLCP in two parts and timing for packet transfer */ |
| 1488 | tmp = le32_to_cpu(plcp.data); |
| 1489 | b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF); |
| 1490 | b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 2, tmp >> 16); |
| 1491 | b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 6, le16_to_cpu(dur)); |
| 1492 | } |
| 1493 | |
| 1494 | /* Instead of using custom probe response template, this function |
| 1495 | * just patches custom beacon template by: |
| 1496 | * 1) Changing packet type |
| 1497 | * 2) Patching duration field |
| 1498 | * 3) Stripping TIM |
| 1499 | */ |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1500 | static const u8 * b43_generate_probe_resp(struct b43_wldev *dev, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1501 | u16 *dest_size, |
| 1502 | struct ieee80211_rate *rate) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1503 | { |
| 1504 | const u8 *src_data; |
| 1505 | u8 *dest_data; |
| 1506 | u16 src_size, elem_size, src_pos, dest_pos; |
| 1507 | __le16 dur; |
| 1508 | struct ieee80211_hdr *hdr; |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1509 | size_t ie_start; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1510 | |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1511 | src_size = dev->wl->current_beacon->len; |
| 1512 | src_data = (const u8 *)dev->wl->current_beacon->data; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1513 | |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1514 | /* Get the start offset of the variable IEs in the packet. */ |
| 1515 | ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); |
| 1516 | B43_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt, u.beacon.variable)); |
| 1517 | |
| 1518 | if (B43_WARN_ON(src_size < ie_start)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1519 | return NULL; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1520 | |
| 1521 | dest_data = kmalloc(src_size, GFP_ATOMIC); |
| 1522 | if (unlikely(!dest_data)) |
| 1523 | return NULL; |
| 1524 | |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1525 | /* Copy the static data and all Information Elements, except the TIM. */ |
| 1526 | memcpy(dest_data, src_data, ie_start); |
| 1527 | src_pos = ie_start; |
| 1528 | dest_pos = ie_start; |
| 1529 | for ( ; src_pos < src_size - 2; src_pos += elem_size) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1530 | elem_size = src_data[src_pos + 1] + 2; |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1531 | if (src_data[src_pos] == 5) { |
| 1532 | /* This is the TIM. */ |
| 1533 | continue; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1534 | } |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1535 | memcpy(dest_data + dest_pos, src_data + src_pos, |
| 1536 | elem_size); |
| 1537 | dest_pos += elem_size; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1538 | } |
| 1539 | *dest_size = dest_pos; |
| 1540 | hdr = (struct ieee80211_hdr *)dest_data; |
| 1541 | |
| 1542 | /* Set the frame control. */ |
| 1543 | hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
| 1544 | IEEE80211_STYPE_PROBE_RESP); |
| 1545 | dur = ieee80211_generic_frame_duration(dev->wl->hw, |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1546 | dev->wl->vif, *dest_size, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1547 | rate); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1548 | hdr->duration_id = dur; |
| 1549 | |
| 1550 | return dest_data; |
| 1551 | } |
| 1552 | |
| 1553 | static void b43_write_probe_resp_template(struct b43_wldev *dev, |
| 1554 | u16 ram_offset, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1555 | u16 shm_size_offset, |
| 1556 | struct ieee80211_rate *rate) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1557 | { |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1558 | const u8 *probe_resp_data; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1559 | u16 size; |
| 1560 | |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1561 | size = dev->wl->current_beacon->len; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1562 | probe_resp_data = b43_generate_probe_resp(dev, &size, rate); |
| 1563 | if (unlikely(!probe_resp_data)) |
| 1564 | return; |
| 1565 | |
| 1566 | /* Looks like PLCP headers plus packet timings are stored for |
| 1567 | * all possible basic rates |
| 1568 | */ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1569 | b43_write_probe_resp_plcp(dev, 0x31A, size, &b43_b_ratetable[0]); |
| 1570 | b43_write_probe_resp_plcp(dev, 0x32C, size, &b43_b_ratetable[1]); |
| 1571 | b43_write_probe_resp_plcp(dev, 0x33E, size, &b43_b_ratetable[2]); |
| 1572 | b43_write_probe_resp_plcp(dev, 0x350, size, &b43_b_ratetable[3]); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1573 | |
| 1574 | size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6)); |
| 1575 | b43_write_template_common(dev, probe_resp_data, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1576 | size, ram_offset, shm_size_offset, |
| 1577 | rate->hw_value); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1578 | kfree(probe_resp_data); |
| 1579 | } |
| 1580 | |
Michael Buesch | 6b4bec01 | 2008-05-20 12:16:28 +0200 | [diff] [blame] | 1581 | static void b43_upload_beacon0(struct b43_wldev *dev) |
| 1582 | { |
| 1583 | struct b43_wl *wl = dev->wl; |
| 1584 | |
| 1585 | if (wl->beacon0_uploaded) |
| 1586 | return; |
| 1587 | b43_write_beacon_template(dev, 0x68, 0x18); |
| 1588 | /* FIXME: Probe resp upload doesn't really belong here, |
| 1589 | * but we don't use that feature anyway. */ |
| 1590 | b43_write_probe_resp_template(dev, 0x268, 0x4A, |
| 1591 | &__b43_ratetable[3]); |
| 1592 | wl->beacon0_uploaded = 1; |
| 1593 | } |
| 1594 | |
| 1595 | static void b43_upload_beacon1(struct b43_wldev *dev) |
| 1596 | { |
| 1597 | struct b43_wl *wl = dev->wl; |
| 1598 | |
| 1599 | if (wl->beacon1_uploaded) |
| 1600 | return; |
| 1601 | b43_write_beacon_template(dev, 0x468, 0x1A); |
| 1602 | wl->beacon1_uploaded = 1; |
| 1603 | } |
| 1604 | |
Michael Buesch | c97a4cc | 2008-04-05 15:02:09 +0200 | [diff] [blame] | 1605 | static void handle_irq_beacon(struct b43_wldev *dev) |
| 1606 | { |
| 1607 | struct b43_wl *wl = dev->wl; |
| 1608 | u32 cmd, beacon0_valid, beacon1_valid; |
| 1609 | |
Johannes Berg | 04dea13 | 2008-05-20 12:10:49 +0200 | [diff] [blame] | 1610 | if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP) && |
| 1611 | !b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT)) |
Michael Buesch | c97a4cc | 2008-04-05 15:02:09 +0200 | [diff] [blame] | 1612 | return; |
| 1613 | |
| 1614 | /* This is the bottom half of the asynchronous beacon update. */ |
| 1615 | |
| 1616 | /* Ignore interrupt in the future. */ |
| 1617 | dev->irq_savedstate &= ~B43_IRQ_BEACON; |
| 1618 | |
| 1619 | cmd = b43_read32(dev, B43_MMIO_MACCMD); |
| 1620 | beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); |
| 1621 | beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID); |
| 1622 | |
| 1623 | /* Schedule interrupt manually, if busy. */ |
| 1624 | if (beacon0_valid && beacon1_valid) { |
| 1625 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); |
| 1626 | dev->irq_savedstate |= B43_IRQ_BEACON; |
| 1627 | return; |
| 1628 | } |
| 1629 | |
Michael Buesch | 6b4bec01 | 2008-05-20 12:16:28 +0200 | [diff] [blame] | 1630 | if (unlikely(wl->beacon_templates_virgin)) { |
| 1631 | /* We never uploaded a beacon before. |
| 1632 | * Upload both templates now, but only mark one valid. */ |
| 1633 | wl->beacon_templates_virgin = 0; |
| 1634 | b43_upload_beacon0(dev); |
| 1635 | b43_upload_beacon1(dev); |
Michael Buesch | c97a4cc | 2008-04-05 15:02:09 +0200 | [diff] [blame] | 1636 | cmd = b43_read32(dev, B43_MMIO_MACCMD); |
| 1637 | cmd |= B43_MACCMD_BEACON0_VALID; |
| 1638 | b43_write32(dev, B43_MMIO_MACCMD, cmd); |
Michael Buesch | 6b4bec01 | 2008-05-20 12:16:28 +0200 | [diff] [blame] | 1639 | } else { |
| 1640 | if (!beacon0_valid) { |
| 1641 | b43_upload_beacon0(dev); |
| 1642 | cmd = b43_read32(dev, B43_MMIO_MACCMD); |
| 1643 | cmd |= B43_MACCMD_BEACON0_VALID; |
| 1644 | b43_write32(dev, B43_MMIO_MACCMD, cmd); |
| 1645 | } else if (!beacon1_valid) { |
| 1646 | b43_upload_beacon1(dev); |
| 1647 | cmd = b43_read32(dev, B43_MMIO_MACCMD); |
| 1648 | cmd |= B43_MACCMD_BEACON1_VALID; |
| 1649 | b43_write32(dev, B43_MMIO_MACCMD, cmd); |
Michael Buesch | c97a4cc | 2008-04-05 15:02:09 +0200 | [diff] [blame] | 1650 | } |
Michael Buesch | c97a4cc | 2008-04-05 15:02:09 +0200 | [diff] [blame] | 1651 | } |
| 1652 | } |
| 1653 | |
Michael Buesch | a82d992 | 2008-04-04 21:40:06 +0200 | [diff] [blame] | 1654 | static void b43_beacon_update_trigger_work(struct work_struct *work) |
| 1655 | { |
| 1656 | struct b43_wl *wl = container_of(work, struct b43_wl, |
| 1657 | beacon_update_trigger); |
| 1658 | struct b43_wldev *dev; |
| 1659 | |
| 1660 | mutex_lock(&wl->mutex); |
| 1661 | dev = wl->current_dev; |
| 1662 | if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) { |
Michael Buesch | a82d992 | 2008-04-04 21:40:06 +0200 | [diff] [blame] | 1663 | spin_lock_irq(&wl->irq_lock); |
Michael Buesch | c97a4cc | 2008-04-05 15:02:09 +0200 | [diff] [blame] | 1664 | /* update beacon right away or defer to irq */ |
| 1665 | dev->irq_savedstate = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); |
| 1666 | handle_irq_beacon(dev); |
| 1667 | /* The handler might have updated the IRQ mask. */ |
| 1668 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, |
| 1669 | dev->irq_savedstate); |
| 1670 | mmiowb(); |
Michael Buesch | a82d992 | 2008-04-04 21:40:06 +0200 | [diff] [blame] | 1671 | spin_unlock_irq(&wl->irq_lock); |
| 1672 | } |
| 1673 | mutex_unlock(&wl->mutex); |
| 1674 | } |
| 1675 | |
Michael Buesch | d4df6f1 | 2007-12-26 18:04:14 +0100 | [diff] [blame] | 1676 | /* Asynchronously update the packet templates in template RAM. |
| 1677 | * Locking: Requires wl->irq_lock to be locked. */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1678 | static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1679 | { |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1680 | /* This is the top half of the ansynchronous beacon update. |
| 1681 | * The bottom half is the beacon IRQ. |
| 1682 | * Beacon update must be asynchronous to avoid sending an |
| 1683 | * invalid beacon. This can happen for example, if the firmware |
| 1684 | * transmits a beacon while we are updating it. */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1685 | |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 1686 | if (wl->current_beacon) |
| 1687 | dev_kfree_skb_any(wl->current_beacon); |
| 1688 | wl->current_beacon = beacon; |
| 1689 | wl->beacon0_uploaded = 0; |
| 1690 | wl->beacon1_uploaded = 0; |
Michael Buesch | a82d992 | 2008-04-04 21:40:06 +0200 | [diff] [blame] | 1691 | queue_work(wl->hw->workqueue, &wl->beacon_update_trigger); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1692 | } |
| 1693 | |
| 1694 | static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len) |
| 1695 | { |
| 1696 | u32 tmp; |
| 1697 | u16 i, len; |
| 1698 | |
| 1699 | len = min((u16) ssid_len, (u16) 0x100); |
| 1700 | for (i = 0; i < len; i += sizeof(u32)) { |
| 1701 | tmp = (u32) (ssid[i + 0]); |
| 1702 | if (i + 1 < len) |
| 1703 | tmp |= (u32) (ssid[i + 1]) << 8; |
| 1704 | if (i + 2 < len) |
| 1705 | tmp |= (u32) (ssid[i + 2]) << 16; |
| 1706 | if (i + 3 < len) |
| 1707 | tmp |= (u32) (ssid[i + 3]) << 24; |
| 1708 | b43_shm_write32(dev, B43_SHM_SHARED, 0x380 + i, tmp); |
| 1709 | } |
| 1710 | b43_shm_write16(dev, B43_SHM_SHARED, 0x48, len); |
| 1711 | } |
| 1712 | |
| 1713 | static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) |
| 1714 | { |
| 1715 | b43_time_lock(dev); |
| 1716 | if (dev->dev->id.revision >= 3) { |
Michael Buesch | a82d992 | 2008-04-04 21:40:06 +0200 | [diff] [blame] | 1717 | b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16)); |
| 1718 | b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1719 | } else { |
| 1720 | b43_write16(dev, 0x606, (beacon_int >> 6)); |
| 1721 | b43_write16(dev, 0x610, beacon_int); |
| 1722 | } |
| 1723 | b43_time_unlock(dev); |
Michael Buesch | a82d992 | 2008-04-04 21:40:06 +0200 | [diff] [blame] | 1724 | b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1725 | } |
| 1726 | |
Michael Buesch | afa83e2 | 2008-05-19 23:51:37 +0200 | [diff] [blame] | 1727 | static void b43_handle_firmware_panic(struct b43_wldev *dev) |
| 1728 | { |
| 1729 | u16 reason; |
| 1730 | |
| 1731 | /* Read the register that contains the reason code for the panic. */ |
| 1732 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG); |
| 1733 | b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason); |
| 1734 | |
| 1735 | switch (reason) { |
| 1736 | default: |
| 1737 | b43dbg(dev->wl, "The panic reason is unknown.\n"); |
| 1738 | /* fallthrough */ |
| 1739 | case B43_FWPANIC_DIE: |
| 1740 | /* Do not restart the controller or firmware. |
| 1741 | * The device is nonfunctional from now on. |
| 1742 | * Restarting would result in this panic to trigger again, |
| 1743 | * so we avoid that recursion. */ |
| 1744 | break; |
| 1745 | case B43_FWPANIC_RESTART: |
| 1746 | b43_controller_restart(dev, "Microcode panic"); |
| 1747 | break; |
| 1748 | } |
| 1749 | } |
| 1750 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1751 | static void handle_irq_ucode_debug(struct b43_wldev *dev) |
| 1752 | { |
Michael Buesch | e48b0ee | 2008-05-17 22:44:35 +0200 | [diff] [blame] | 1753 | unsigned int i, cnt; |
Michael Buesch | 53c0685 | 2008-05-20 00:24:36 +0200 | [diff] [blame] | 1754 | u16 reason, marker_id, marker_line; |
Michael Buesch | e48b0ee | 2008-05-17 22:44:35 +0200 | [diff] [blame] | 1755 | __le16 *buf; |
| 1756 | |
| 1757 | /* The proprietary firmware doesn't have this IRQ. */ |
| 1758 | if (!dev->fw.opensource) |
| 1759 | return; |
| 1760 | |
Michael Buesch | afa83e2 | 2008-05-19 23:51:37 +0200 | [diff] [blame] | 1761 | /* Read the register that contains the reason code for this IRQ. */ |
| 1762 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG); |
| 1763 | |
Michael Buesch | e48b0ee | 2008-05-17 22:44:35 +0200 | [diff] [blame] | 1764 | switch (reason) { |
| 1765 | case B43_DEBUGIRQ_PANIC: |
Michael Buesch | afa83e2 | 2008-05-19 23:51:37 +0200 | [diff] [blame] | 1766 | b43_handle_firmware_panic(dev); |
Michael Buesch | e48b0ee | 2008-05-17 22:44:35 +0200 | [diff] [blame] | 1767 | break; |
| 1768 | case B43_DEBUGIRQ_DUMP_SHM: |
| 1769 | if (!B43_DEBUG) |
| 1770 | break; /* Only with driver debugging enabled. */ |
| 1771 | buf = kmalloc(4096, GFP_ATOMIC); |
| 1772 | if (!buf) { |
| 1773 | b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n"); |
| 1774 | goto out; |
| 1775 | } |
| 1776 | for (i = 0; i < 4096; i += 2) { |
| 1777 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i); |
| 1778 | buf[i / 2] = cpu_to_le16(tmp); |
| 1779 | } |
| 1780 | b43info(dev->wl, "Shared memory dump:\n"); |
| 1781 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, |
| 1782 | 16, 2, buf, 4096, 1); |
| 1783 | kfree(buf); |
| 1784 | break; |
| 1785 | case B43_DEBUGIRQ_DUMP_REGS: |
| 1786 | if (!B43_DEBUG) |
| 1787 | break; /* Only with driver debugging enabled. */ |
| 1788 | b43info(dev->wl, "Microcode register dump:\n"); |
| 1789 | for (i = 0, cnt = 0; i < 64; i++) { |
| 1790 | u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i); |
| 1791 | if (cnt == 0) |
| 1792 | printk(KERN_INFO); |
| 1793 | printk("r%02u: 0x%04X ", i, tmp); |
| 1794 | cnt++; |
| 1795 | if (cnt == 6) { |
| 1796 | printk("\n"); |
| 1797 | cnt = 0; |
| 1798 | } |
| 1799 | } |
| 1800 | printk("\n"); |
| 1801 | break; |
Michael Buesch | 53c0685 | 2008-05-20 00:24:36 +0200 | [diff] [blame] | 1802 | case B43_DEBUGIRQ_MARKER: |
| 1803 | if (!B43_DEBUG) |
| 1804 | break; /* Only with driver debugging enabled. */ |
| 1805 | marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH, |
| 1806 | B43_MARKER_ID_REG); |
| 1807 | marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH, |
| 1808 | B43_MARKER_LINE_REG); |
| 1809 | b43info(dev->wl, "The firmware just executed the MARKER(%u) " |
| 1810 | "at line number %u\n", |
| 1811 | marker_id, marker_line); |
| 1812 | break; |
Michael Buesch | e48b0ee | 2008-05-17 22:44:35 +0200 | [diff] [blame] | 1813 | default: |
| 1814 | b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n", |
| 1815 | reason); |
| 1816 | } |
| 1817 | out: |
Michael Buesch | afa83e2 | 2008-05-19 23:51:37 +0200 | [diff] [blame] | 1818 | /* Acknowledge the debug-IRQ, so the firmware can continue. */ |
| 1819 | b43_shm_write16(dev, B43_SHM_SCRATCH, |
| 1820 | B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1821 | } |
| 1822 | |
| 1823 | /* Interrupt handler bottom-half */ |
| 1824 | static void b43_interrupt_tasklet(struct b43_wldev *dev) |
| 1825 | { |
| 1826 | u32 reason; |
| 1827 | u32 dma_reason[ARRAY_SIZE(dev->dma_reason)]; |
| 1828 | u32 merged_dma_reason = 0; |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 1829 | int i; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1830 | unsigned long flags; |
| 1831 | |
| 1832 | spin_lock_irqsave(&dev->wl->irq_lock, flags); |
| 1833 | |
| 1834 | B43_WARN_ON(b43_status(dev) != B43_STAT_STARTED); |
| 1835 | |
| 1836 | reason = dev->irq_reason; |
| 1837 | for (i = 0; i < ARRAY_SIZE(dma_reason); i++) { |
| 1838 | dma_reason[i] = dev->dma_reason[i]; |
| 1839 | merged_dma_reason |= dma_reason[i]; |
| 1840 | } |
| 1841 | |
| 1842 | if (unlikely(reason & B43_IRQ_MAC_TXERR)) |
| 1843 | b43err(dev->wl, "MAC transmission error\n"); |
| 1844 | |
Stefano Brivio | 00e0b8c | 2007-11-25 11:10:33 +0100 | [diff] [blame] | 1845 | if (unlikely(reason & B43_IRQ_PHY_TXERR)) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1846 | b43err(dev->wl, "PHY transmission error\n"); |
Stefano Brivio | 00e0b8c | 2007-11-25 11:10:33 +0100 | [diff] [blame] | 1847 | rmb(); |
| 1848 | if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) { |
| 1849 | atomic_set(&dev->phy.txerr_cnt, |
| 1850 | B43_PHY_TX_BADNESS_LIMIT); |
| 1851 | b43err(dev->wl, "Too many PHY TX errors, " |
| 1852 | "restarting the controller\n"); |
| 1853 | b43_controller_restart(dev, "PHY TX errors"); |
| 1854 | } |
| 1855 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1856 | |
| 1857 | if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK | |
| 1858 | B43_DMAIRQ_NONFATALMASK))) { |
| 1859 | if (merged_dma_reason & B43_DMAIRQ_FATALMASK) { |
| 1860 | b43err(dev->wl, "Fatal DMA error: " |
| 1861 | "0x%08X, 0x%08X, 0x%08X, " |
| 1862 | "0x%08X, 0x%08X, 0x%08X\n", |
| 1863 | dma_reason[0], dma_reason[1], |
| 1864 | dma_reason[2], dma_reason[3], |
| 1865 | dma_reason[4], dma_reason[5]); |
| 1866 | b43_controller_restart(dev, "DMA error"); |
| 1867 | mmiowb(); |
| 1868 | spin_unlock_irqrestore(&dev->wl->irq_lock, flags); |
| 1869 | return; |
| 1870 | } |
| 1871 | if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) { |
| 1872 | b43err(dev->wl, "DMA error: " |
| 1873 | "0x%08X, 0x%08X, 0x%08X, " |
| 1874 | "0x%08X, 0x%08X, 0x%08X\n", |
| 1875 | dma_reason[0], dma_reason[1], |
| 1876 | dma_reason[2], dma_reason[3], |
| 1877 | dma_reason[4], dma_reason[5]); |
| 1878 | } |
| 1879 | } |
| 1880 | |
| 1881 | if (unlikely(reason & B43_IRQ_UCODE_DEBUG)) |
| 1882 | handle_irq_ucode_debug(dev); |
| 1883 | if (reason & B43_IRQ_TBTT_INDI) |
| 1884 | handle_irq_tbtt_indication(dev); |
| 1885 | if (reason & B43_IRQ_ATIM_END) |
| 1886 | handle_irq_atim_end(dev); |
| 1887 | if (reason & B43_IRQ_BEACON) |
| 1888 | handle_irq_beacon(dev); |
| 1889 | if (reason & B43_IRQ_PMQ) |
| 1890 | handle_irq_pmq(dev); |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 1891 | if (reason & B43_IRQ_TXFIFO_FLUSH_OK) |
| 1892 | ;/* TODO */ |
| 1893 | if (reason & B43_IRQ_NOISESAMPLE_OK) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1894 | handle_irq_noise(dev); |
| 1895 | |
| 1896 | /* Check the DMA reason registers for received data. */ |
Michael Buesch | 5100d5a | 2008-03-29 21:01:16 +0100 | [diff] [blame] | 1897 | if (dma_reason[0] & B43_DMAIRQ_RX_DONE) { |
| 1898 | if (b43_using_pio_transfers(dev)) |
| 1899 | b43_pio_rx(dev->pio.rx_queue); |
| 1900 | else |
| 1901 | b43_dma_rx(dev->dma.rx_ring); |
| 1902 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1903 | B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE); |
| 1904 | B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE); |
Michael Buesch | b27faf8 | 2008-03-06 16:32:46 +0100 | [diff] [blame] | 1905 | B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1906 | B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE); |
| 1907 | B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE); |
| 1908 | |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 1909 | if (reason & B43_IRQ_TX_OK) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1910 | handle_irq_transmit_status(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1911 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1912 | b43_interrupt_enable(dev, dev->irq_savedstate); |
| 1913 | mmiowb(); |
| 1914 | spin_unlock_irqrestore(&dev->wl->irq_lock, flags); |
| 1915 | } |
| 1916 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1917 | static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason) |
| 1918 | { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1919 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason); |
| 1920 | |
| 1921 | b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]); |
| 1922 | b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]); |
| 1923 | b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]); |
| 1924 | b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]); |
| 1925 | b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]); |
| 1926 | b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]); |
| 1927 | } |
| 1928 | |
| 1929 | /* Interrupt handler top-half */ |
| 1930 | static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) |
| 1931 | { |
| 1932 | irqreturn_t ret = IRQ_NONE; |
| 1933 | struct b43_wldev *dev = dev_id; |
| 1934 | u32 reason; |
| 1935 | |
| 1936 | if (!dev) |
| 1937 | return IRQ_NONE; |
| 1938 | |
| 1939 | spin_lock(&dev->wl->irq_lock); |
| 1940 | |
| 1941 | if (b43_status(dev) < B43_STAT_STARTED) |
| 1942 | goto out; |
| 1943 | reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
| 1944 | if (reason == 0xffffffff) /* shared IRQ */ |
| 1945 | goto out; |
| 1946 | ret = IRQ_HANDLED; |
| 1947 | reason &= b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); |
| 1948 | if (!reason) |
| 1949 | goto out; |
| 1950 | |
| 1951 | dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON) |
| 1952 | & 0x0001DC00; |
| 1953 | dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON) |
| 1954 | & 0x0000DC00; |
| 1955 | dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON) |
| 1956 | & 0x0000DC00; |
| 1957 | dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON) |
| 1958 | & 0x0001DC00; |
| 1959 | dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON) |
| 1960 | & 0x0000DC00; |
| 1961 | dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON) |
| 1962 | & 0x0000DC00; |
| 1963 | |
| 1964 | b43_interrupt_ack(dev, reason); |
| 1965 | /* disable all IRQs. They are enabled again in the bottom half. */ |
| 1966 | dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL); |
| 1967 | /* save the reason code and call our bottom half. */ |
| 1968 | dev->irq_reason = reason; |
| 1969 | tasklet_schedule(&dev->isr_tasklet); |
| 1970 | out: |
| 1971 | mmiowb(); |
| 1972 | spin_unlock(&dev->wl->irq_lock); |
| 1973 | |
| 1974 | return ret; |
| 1975 | } |
| 1976 | |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 1977 | static void do_release_fw(struct b43_firmware_file *fw) |
| 1978 | { |
| 1979 | release_firmware(fw->data); |
| 1980 | fw->data = NULL; |
| 1981 | fw->filename = NULL; |
| 1982 | } |
| 1983 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1984 | static void b43_release_firmware(struct b43_wldev *dev) |
| 1985 | { |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 1986 | do_release_fw(&dev->fw.ucode); |
| 1987 | do_release_fw(&dev->fw.pcm); |
| 1988 | do_release_fw(&dev->fw.initvals); |
| 1989 | do_release_fw(&dev->fw.initvals_band); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1990 | } |
| 1991 | |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 1992 | static void b43_print_fw_helptext(struct b43_wl *wl, bool error) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 1993 | { |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 1994 | const char *text; |
| 1995 | |
| 1996 | text = "You must go to " |
Stefano Brivio | 354807e | 2007-11-19 20:21:31 +0100 | [diff] [blame] | 1997 | "http://linuxwireless.org/en/users/Drivers/b43#devicefirmware " |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 1998 | "and download the latest firmware (version 4).\n"; |
| 1999 | if (error) |
| 2000 | b43err(wl, text); |
| 2001 | else |
| 2002 | b43warn(wl, text); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2003 | } |
| 2004 | |
| 2005 | static int do_request_fw(struct b43_wldev *dev, |
| 2006 | const char *name, |
Michael Buesch | 6821783 | 2008-05-17 23:43:57 +0200 | [diff] [blame] | 2007 | struct b43_firmware_file *fw, |
| 2008 | bool silent) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2009 | { |
Michael Buesch | 1a09404 | 2007-09-20 11:13:40 -0700 | [diff] [blame] | 2010 | char path[sizeof(modparam_fwpostfix) + 32]; |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2011 | const struct firmware *blob; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2012 | struct b43_fw_header *hdr; |
| 2013 | u32 size; |
| 2014 | int err; |
| 2015 | |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2016 | if (!name) { |
| 2017 | /* Don't fetch anything. Free possibly cached firmware. */ |
| 2018 | do_release_fw(fw); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2019 | return 0; |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2020 | } |
| 2021 | if (fw->filename) { |
| 2022 | if (strcmp(fw->filename, name) == 0) |
| 2023 | return 0; /* Already have this fw. */ |
| 2024 | /* Free the cached firmware first. */ |
| 2025 | do_release_fw(fw); |
| 2026 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2027 | |
| 2028 | snprintf(path, ARRAY_SIZE(path), |
| 2029 | "b43%s/%s.fw", |
| 2030 | modparam_fwpostfix, name); |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2031 | err = request_firmware(&blob, path, dev->dev->dev); |
Michael Buesch | 6821783 | 2008-05-17 23:43:57 +0200 | [diff] [blame] | 2032 | if (err == -ENOENT) { |
| 2033 | if (!silent) { |
| 2034 | b43err(dev->wl, "Firmware file \"%s\" not found\n", |
| 2035 | path); |
| 2036 | } |
| 2037 | return err; |
| 2038 | } else if (err) { |
| 2039 | b43err(dev->wl, "Firmware file \"%s\" request failed (err=%d)\n", |
| 2040 | path, err); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2041 | return err; |
| 2042 | } |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2043 | if (blob->size < sizeof(struct b43_fw_header)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2044 | goto err_format; |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2045 | hdr = (struct b43_fw_header *)(blob->data); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2046 | switch (hdr->type) { |
| 2047 | case B43_FW_TYPE_UCODE: |
| 2048 | case B43_FW_TYPE_PCM: |
| 2049 | size = be32_to_cpu(hdr->size); |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2050 | if (size != blob->size - sizeof(struct b43_fw_header)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2051 | goto err_format; |
| 2052 | /* fallthrough */ |
| 2053 | case B43_FW_TYPE_IV: |
| 2054 | if (hdr->ver != 1) |
| 2055 | goto err_format; |
| 2056 | break; |
| 2057 | default: |
| 2058 | goto err_format; |
| 2059 | } |
| 2060 | |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2061 | fw->data = blob; |
| 2062 | fw->filename = name; |
| 2063 | |
| 2064 | return 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2065 | |
| 2066 | err_format: |
| 2067 | b43err(dev->wl, "Firmware file \"%s\" format error.\n", path); |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2068 | release_firmware(blob); |
| 2069 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2070 | return -EPROTO; |
| 2071 | } |
| 2072 | |
| 2073 | static int b43_request_firmware(struct b43_wldev *dev) |
| 2074 | { |
| 2075 | struct b43_firmware *fw = &dev->fw; |
| 2076 | const u8 rev = dev->dev->id.revision; |
| 2077 | const char *filename; |
| 2078 | u32 tmshigh; |
| 2079 | int err; |
| 2080 | |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2081 | /* Get microcode */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2082 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2083 | if ((rev >= 5) && (rev <= 10)) |
| 2084 | filename = "ucode5"; |
| 2085 | else if ((rev >= 11) && (rev <= 12)) |
| 2086 | filename = "ucode11"; |
| 2087 | else if (rev >= 13) |
| 2088 | filename = "ucode13"; |
| 2089 | else |
| 2090 | goto err_no_ucode; |
Michael Buesch | 6821783 | 2008-05-17 23:43:57 +0200 | [diff] [blame] | 2091 | err = do_request_fw(dev, filename, &fw->ucode, 0); |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2092 | if (err) |
| 2093 | goto err_load; |
| 2094 | |
| 2095 | /* Get PCM code */ |
| 2096 | if ((rev >= 5) && (rev <= 10)) |
| 2097 | filename = "pcm5"; |
| 2098 | else if (rev >= 11) |
| 2099 | filename = NULL; |
| 2100 | else |
| 2101 | goto err_no_pcm; |
Michael Buesch | 6821783 | 2008-05-17 23:43:57 +0200 | [diff] [blame] | 2102 | fw->pcm_request_failed = 0; |
| 2103 | err = do_request_fw(dev, filename, &fw->pcm, 1); |
| 2104 | if (err == -ENOENT) { |
| 2105 | /* We did not find a PCM file? Not fatal, but |
| 2106 | * core rev <= 10 must do without hwcrypto then. */ |
| 2107 | fw->pcm_request_failed = 1; |
| 2108 | } else if (err) |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2109 | goto err_load; |
| 2110 | |
| 2111 | /* Get initvals */ |
| 2112 | switch (dev->phy.type) { |
| 2113 | case B43_PHYTYPE_A: |
| 2114 | if ((rev >= 5) && (rev <= 10)) { |
| 2115 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) |
| 2116 | filename = "a0g1initvals5"; |
| 2117 | else |
| 2118 | filename = "a0g0initvals5"; |
| 2119 | } else |
| 2120 | goto err_no_initvals; |
| 2121 | break; |
| 2122 | case B43_PHYTYPE_G: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2123 | if ((rev >= 5) && (rev <= 10)) |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2124 | filename = "b0g0initvals5"; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2125 | else if (rev >= 13) |
Larry.Finger@lwfinger.net | e930488 | 2008-05-15 14:07:36 -0500 | [diff] [blame] | 2126 | filename = "b0g0initvals13"; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2127 | else |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2128 | goto err_no_initvals; |
| 2129 | break; |
| 2130 | case B43_PHYTYPE_N: |
| 2131 | if ((rev >= 11) && (rev <= 12)) |
| 2132 | filename = "n0initvals11"; |
| 2133 | else |
| 2134 | goto err_no_initvals; |
| 2135 | break; |
| 2136 | default: |
| 2137 | goto err_no_initvals; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2138 | } |
Michael Buesch | 6821783 | 2008-05-17 23:43:57 +0200 | [diff] [blame] | 2139 | err = do_request_fw(dev, filename, &fw->initvals, 0); |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2140 | if (err) |
| 2141 | goto err_load; |
| 2142 | |
| 2143 | /* Get bandswitch initvals */ |
| 2144 | switch (dev->phy.type) { |
| 2145 | case B43_PHYTYPE_A: |
| 2146 | if ((rev >= 5) && (rev <= 10)) { |
| 2147 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) |
| 2148 | filename = "a0g1bsinitvals5"; |
| 2149 | else |
| 2150 | filename = "a0g0bsinitvals5"; |
| 2151 | } else if (rev >= 11) |
| 2152 | filename = NULL; |
| 2153 | else |
| 2154 | goto err_no_initvals; |
| 2155 | break; |
| 2156 | case B43_PHYTYPE_G: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2157 | if ((rev >= 5) && (rev <= 10)) |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2158 | filename = "b0g0bsinitvals5"; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2159 | else if (rev >= 11) |
| 2160 | filename = NULL; |
| 2161 | else |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2162 | goto err_no_initvals; |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2163 | break; |
| 2164 | case B43_PHYTYPE_N: |
| 2165 | if ((rev >= 11) && (rev <= 12)) |
| 2166 | filename = "n0bsinitvals11"; |
| 2167 | else |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2168 | goto err_no_initvals; |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2169 | break; |
| 2170 | default: |
| 2171 | goto err_no_initvals; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2172 | } |
Michael Buesch | 6821783 | 2008-05-17 23:43:57 +0200 | [diff] [blame] | 2173 | err = do_request_fw(dev, filename, &fw->initvals_band, 0); |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2174 | if (err) |
| 2175 | goto err_load; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2176 | |
| 2177 | return 0; |
| 2178 | |
| 2179 | err_load: |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 2180 | b43_print_fw_helptext(dev->wl, 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2181 | goto error; |
| 2182 | |
| 2183 | err_no_ucode: |
| 2184 | err = -ENODEV; |
| 2185 | b43err(dev->wl, "No microcode available for core rev %u\n", rev); |
| 2186 | goto error; |
| 2187 | |
| 2188 | err_no_pcm: |
| 2189 | err = -ENODEV; |
| 2190 | b43err(dev->wl, "No PCM available for core rev %u\n", rev); |
| 2191 | goto error; |
| 2192 | |
| 2193 | err_no_initvals: |
| 2194 | err = -ENODEV; |
| 2195 | b43err(dev->wl, "No Initial Values firmware file for PHY %u, " |
| 2196 | "core rev %u\n", dev->phy.type, rev); |
| 2197 | goto error; |
| 2198 | |
| 2199 | error: |
| 2200 | b43_release_firmware(dev); |
| 2201 | return err; |
| 2202 | } |
| 2203 | |
| 2204 | static int b43_upload_microcode(struct b43_wldev *dev) |
| 2205 | { |
| 2206 | const size_t hdr_len = sizeof(struct b43_fw_header); |
| 2207 | const __be32 *data; |
| 2208 | unsigned int i, len; |
| 2209 | u16 fwrev, fwpatch, fwdate, fwtime; |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2210 | u32 tmp, macctl; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2211 | int err = 0; |
| 2212 | |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2213 | /* Jump the microcode PSM to offset 0 */ |
| 2214 | macctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 2215 | B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN); |
| 2216 | macctl |= B43_MACCTL_PSM_JMP0; |
| 2217 | b43_write32(dev, B43_MMIO_MACCTL, macctl); |
| 2218 | /* Zero out all microcode PSM registers and shared memory. */ |
| 2219 | for (i = 0; i < 64; i++) |
| 2220 | b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0); |
| 2221 | for (i = 0; i < 4096; i += 2) |
| 2222 | b43_shm_write16(dev, B43_SHM_SHARED, i, 0); |
| 2223 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2224 | /* Upload Microcode. */ |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2225 | data = (__be32 *) (dev->fw.ucode.data->data + hdr_len); |
| 2226 | len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2227 | b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000); |
| 2228 | for (i = 0; i < len; i++) { |
| 2229 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); |
| 2230 | udelay(10); |
| 2231 | } |
| 2232 | |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2233 | if (dev->fw.pcm.data) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2234 | /* Upload PCM data. */ |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2235 | data = (__be32 *) (dev->fw.pcm.data->data + hdr_len); |
| 2236 | len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2237 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EA); |
| 2238 | b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000); |
| 2239 | /* No need for autoinc bit in SHM_HW */ |
| 2240 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EB); |
| 2241 | for (i = 0; i < len; i++) { |
| 2242 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); |
| 2243 | udelay(10); |
| 2244 | } |
| 2245 | } |
| 2246 | |
| 2247 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2248 | |
| 2249 | /* Start the microcode PSM */ |
| 2250 | macctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 2251 | macctl &= ~B43_MACCTL_PSM_JMP0; |
| 2252 | macctl |= B43_MACCTL_PSM_RUN; |
| 2253 | b43_write32(dev, B43_MMIO_MACCTL, macctl); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2254 | |
| 2255 | /* Wait for the microcode to load and respond */ |
| 2256 | i = 0; |
| 2257 | while (1) { |
| 2258 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
| 2259 | if (tmp == B43_IRQ_MAC_SUSPENDED) |
| 2260 | break; |
| 2261 | i++; |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2262 | if (i >= 20) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2263 | b43err(dev->wl, "Microcode not responding\n"); |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 2264 | b43_print_fw_helptext(dev->wl, 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2265 | err = -ENODEV; |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2266 | goto error; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2267 | } |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2268 | msleep_interruptible(50); |
| 2269 | if (signal_pending(current)) { |
| 2270 | err = -EINTR; |
| 2271 | goto error; |
| 2272 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2273 | } |
| 2274 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */ |
| 2275 | |
| 2276 | /* Get and check the revisions. */ |
| 2277 | fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV); |
| 2278 | fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH); |
| 2279 | fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE); |
| 2280 | fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME); |
| 2281 | |
| 2282 | if (fwrev <= 0x128) { |
| 2283 | b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from " |
| 2284 | "binary drivers older than version 4.x is unsupported. " |
| 2285 | "You must upgrade your firmware files.\n"); |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 2286 | b43_print_fw_helptext(dev->wl, 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2287 | err = -EOPNOTSUPP; |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2288 | goto error; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2289 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2290 | dev->fw.rev = fwrev; |
| 2291 | dev->fw.patch = fwpatch; |
Michael Buesch | e48b0ee | 2008-05-17 22:44:35 +0200 | [diff] [blame] | 2292 | dev->fw.opensource = (fwdate == 0xFFFF); |
| 2293 | |
| 2294 | if (dev->fw.opensource) { |
| 2295 | /* Patchlevel info is encoded in the "time" field. */ |
| 2296 | dev->fw.patch = fwtime; |
Michael Buesch | 6821783 | 2008-05-17 23:43:57 +0200 | [diff] [blame] | 2297 | b43info(dev->wl, "Loading OpenSource firmware version %u.%u%s\n", |
| 2298 | dev->fw.rev, dev->fw.patch, |
| 2299 | dev->fw.pcm_request_failed ? " (Hardware crypto not supported)" : ""); |
Michael Buesch | e48b0ee | 2008-05-17 22:44:35 +0200 | [diff] [blame] | 2300 | } else { |
| 2301 | b43info(dev->wl, "Loading firmware version %u.%u " |
| 2302 | "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", |
| 2303 | fwrev, fwpatch, |
| 2304 | (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF, |
| 2305 | (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F); |
Michael Buesch | 6821783 | 2008-05-17 23:43:57 +0200 | [diff] [blame] | 2306 | if (dev->fw.pcm_request_failed) { |
| 2307 | b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. " |
| 2308 | "Hardware accelerated cryptography is disabled.\n"); |
| 2309 | b43_print_fw_helptext(dev->wl, 0); |
| 2310 | } |
Michael Buesch | e48b0ee | 2008-05-17 22:44:35 +0200 | [diff] [blame] | 2311 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2312 | |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 2313 | if (b43_is_old_txhdr_format(dev)) { |
| 2314 | b43warn(dev->wl, "You are using an old firmware image. " |
| 2315 | "Support for old firmware will be removed in July 2008.\n"); |
| 2316 | b43_print_fw_helptext(dev->wl, 0); |
| 2317 | } |
| 2318 | |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2319 | return 0; |
| 2320 | |
| 2321 | error: |
| 2322 | macctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 2323 | macctl &= ~B43_MACCTL_PSM_RUN; |
| 2324 | macctl |= B43_MACCTL_PSM_JMP0; |
| 2325 | b43_write32(dev, B43_MMIO_MACCTL, macctl); |
| 2326 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2327 | return err; |
| 2328 | } |
| 2329 | |
| 2330 | static int b43_write_initvals(struct b43_wldev *dev, |
| 2331 | const struct b43_iv *ivals, |
| 2332 | size_t count, |
| 2333 | size_t array_size) |
| 2334 | { |
| 2335 | const struct b43_iv *iv; |
| 2336 | u16 offset; |
| 2337 | size_t i; |
| 2338 | bool bit32; |
| 2339 | |
| 2340 | BUILD_BUG_ON(sizeof(struct b43_iv) != 6); |
| 2341 | iv = ivals; |
| 2342 | for (i = 0; i < count; i++) { |
| 2343 | if (array_size < sizeof(iv->offset_size)) |
| 2344 | goto err_format; |
| 2345 | array_size -= sizeof(iv->offset_size); |
| 2346 | offset = be16_to_cpu(iv->offset_size); |
| 2347 | bit32 = !!(offset & B43_IV_32BIT); |
| 2348 | offset &= B43_IV_OFFSET_MASK; |
| 2349 | if (offset >= 0x1000) |
| 2350 | goto err_format; |
| 2351 | if (bit32) { |
| 2352 | u32 value; |
| 2353 | |
| 2354 | if (array_size < sizeof(iv->data.d32)) |
| 2355 | goto err_format; |
| 2356 | array_size -= sizeof(iv->data.d32); |
| 2357 | |
Harvey Harrison | 533dd1b | 2008-04-29 01:03:36 -0700 | [diff] [blame] | 2358 | value = get_unaligned_be32(&iv->data.d32); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2359 | b43_write32(dev, offset, value); |
| 2360 | |
| 2361 | iv = (const struct b43_iv *)((const uint8_t *)iv + |
| 2362 | sizeof(__be16) + |
| 2363 | sizeof(__be32)); |
| 2364 | } else { |
| 2365 | u16 value; |
| 2366 | |
| 2367 | if (array_size < sizeof(iv->data.d16)) |
| 2368 | goto err_format; |
| 2369 | array_size -= sizeof(iv->data.d16); |
| 2370 | |
| 2371 | value = be16_to_cpu(iv->data.d16); |
| 2372 | b43_write16(dev, offset, value); |
| 2373 | |
| 2374 | iv = (const struct b43_iv *)((const uint8_t *)iv + |
| 2375 | sizeof(__be16) + |
| 2376 | sizeof(__be16)); |
| 2377 | } |
| 2378 | } |
| 2379 | if (array_size) |
| 2380 | goto err_format; |
| 2381 | |
| 2382 | return 0; |
| 2383 | |
| 2384 | err_format: |
| 2385 | b43err(dev->wl, "Initial Values Firmware file-format error.\n"); |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 2386 | b43_print_fw_helptext(dev->wl, 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2387 | |
| 2388 | return -EPROTO; |
| 2389 | } |
| 2390 | |
| 2391 | static int b43_upload_initvals(struct b43_wldev *dev) |
| 2392 | { |
| 2393 | const size_t hdr_len = sizeof(struct b43_fw_header); |
| 2394 | const struct b43_fw_header *hdr; |
| 2395 | struct b43_firmware *fw = &dev->fw; |
| 2396 | const struct b43_iv *ivals; |
| 2397 | size_t count; |
| 2398 | int err; |
| 2399 | |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2400 | hdr = (const struct b43_fw_header *)(fw->initvals.data->data); |
| 2401 | ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2402 | count = be32_to_cpu(hdr->size); |
| 2403 | err = b43_write_initvals(dev, ivals, count, |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2404 | fw->initvals.data->size - hdr_len); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2405 | if (err) |
| 2406 | goto out; |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2407 | if (fw->initvals_band.data) { |
| 2408 | hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data); |
| 2409 | ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2410 | count = be32_to_cpu(hdr->size); |
| 2411 | err = b43_write_initvals(dev, ivals, count, |
Michael Buesch | 61cb5dd | 2008-01-21 19:55:09 +0100 | [diff] [blame] | 2412 | fw->initvals_band.data->size - hdr_len); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2413 | if (err) |
| 2414 | goto out; |
| 2415 | } |
| 2416 | out: |
| 2417 | |
| 2418 | return err; |
| 2419 | } |
| 2420 | |
| 2421 | /* Initialize the GPIOs |
| 2422 | * http://bcm-specs.sipsolutions.net/GPIO |
| 2423 | */ |
| 2424 | static int b43_gpio_init(struct b43_wldev *dev) |
| 2425 | { |
| 2426 | struct ssb_bus *bus = dev->dev->bus; |
| 2427 | struct ssb_device *gpiodev, *pcidev = NULL; |
| 2428 | u32 mask, set; |
| 2429 | |
| 2430 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) |
| 2431 | & ~B43_MACCTL_GPOUTSMSK); |
| 2432 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2433 | b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK) |
| 2434 | | 0x000F); |
| 2435 | |
| 2436 | mask = 0x0000001F; |
| 2437 | set = 0x0000000F; |
| 2438 | if (dev->dev->bus->chip_id == 0x4301) { |
| 2439 | mask |= 0x0060; |
| 2440 | set |= 0x0060; |
| 2441 | } |
| 2442 | if (0 /* FIXME: conditional unknown */ ) { |
| 2443 | b43_write16(dev, B43_MMIO_GPIO_MASK, |
| 2444 | b43_read16(dev, B43_MMIO_GPIO_MASK) |
| 2445 | | 0x0100); |
| 2446 | mask |= 0x0180; |
| 2447 | set |= 0x0180; |
| 2448 | } |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 2449 | if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2450 | b43_write16(dev, B43_MMIO_GPIO_MASK, |
| 2451 | b43_read16(dev, B43_MMIO_GPIO_MASK) |
| 2452 | | 0x0200); |
| 2453 | mask |= 0x0200; |
| 2454 | set |= 0x0200; |
| 2455 | } |
| 2456 | if (dev->dev->id.revision >= 2) |
| 2457 | mask |= 0x0010; /* FIXME: This is redundant. */ |
| 2458 | |
| 2459 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
| 2460 | pcidev = bus->pcicore.dev; |
| 2461 | #endif |
| 2462 | gpiodev = bus->chipco.dev ? : pcidev; |
| 2463 | if (!gpiodev) |
| 2464 | return 0; |
| 2465 | ssb_write32(gpiodev, B43_GPIO_CONTROL, |
| 2466 | (ssb_read32(gpiodev, B43_GPIO_CONTROL) |
| 2467 | & mask) | set); |
| 2468 | |
| 2469 | return 0; |
| 2470 | } |
| 2471 | |
| 2472 | /* Turn off all GPIO stuff. Call this on module unload, for example. */ |
| 2473 | static void b43_gpio_cleanup(struct b43_wldev *dev) |
| 2474 | { |
| 2475 | struct ssb_bus *bus = dev->dev->bus; |
| 2476 | struct ssb_device *gpiodev, *pcidev = NULL; |
| 2477 | |
| 2478 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
| 2479 | pcidev = bus->pcicore.dev; |
| 2480 | #endif |
| 2481 | gpiodev = bus->chipco.dev ? : pcidev; |
| 2482 | if (!gpiodev) |
| 2483 | return; |
| 2484 | ssb_write32(gpiodev, B43_GPIO_CONTROL, 0); |
| 2485 | } |
| 2486 | |
| 2487 | /* http://bcm-specs.sipsolutions.net/EnableMac */ |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 2488 | void b43_mac_enable(struct b43_wldev *dev) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2489 | { |
Michael Buesch | 923fd70 | 2008-06-20 18:02:08 +0200 | [diff] [blame^] | 2490 | if (b43_debug(dev, B43_DBG_FIRMWARE)) { |
| 2491 | u16 fwstate; |
| 2492 | |
| 2493 | fwstate = b43_shm_read16(dev, B43_SHM_SHARED, |
| 2494 | B43_SHM_SH_UCODESTAT); |
| 2495 | if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) && |
| 2496 | (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) { |
| 2497 | b43err(dev->wl, "b43_mac_enable(): The firmware " |
| 2498 | "should be suspended, but current state is %u\n", |
| 2499 | fwstate); |
| 2500 | } |
| 2501 | } |
| 2502 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2503 | dev->mac_suspended--; |
| 2504 | B43_WARN_ON(dev->mac_suspended < 0); |
| 2505 | if (dev->mac_suspended == 0) { |
| 2506 | b43_write32(dev, B43_MMIO_MACCTL, |
| 2507 | b43_read32(dev, B43_MMIO_MACCTL) |
| 2508 | | B43_MACCTL_ENABLED); |
| 2509 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, |
| 2510 | B43_IRQ_MAC_SUSPENDED); |
| 2511 | /* Commit writes */ |
| 2512 | b43_read32(dev, B43_MMIO_MACCTL); |
| 2513 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
| 2514 | b43_power_saving_ctl_bits(dev, 0); |
| 2515 | } |
| 2516 | } |
| 2517 | |
| 2518 | /* http://bcm-specs.sipsolutions.net/SuspendMAC */ |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 2519 | void b43_mac_suspend(struct b43_wldev *dev) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2520 | { |
| 2521 | int i; |
| 2522 | u32 tmp; |
| 2523 | |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2524 | might_sleep(); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2525 | B43_WARN_ON(dev->mac_suspended < 0); |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2526 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2527 | if (dev->mac_suspended == 0) { |
| 2528 | b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); |
| 2529 | b43_write32(dev, B43_MMIO_MACCTL, |
| 2530 | b43_read32(dev, B43_MMIO_MACCTL) |
| 2531 | & ~B43_MACCTL_ENABLED); |
| 2532 | /* force pci to flush the write */ |
| 2533 | b43_read32(dev, B43_MMIO_MACCTL); |
Michael Buesch | ba38001 | 2008-04-15 21:13:36 +0200 | [diff] [blame] | 2534 | for (i = 35; i; i--) { |
| 2535 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
| 2536 | if (tmp & B43_IRQ_MAC_SUSPENDED) |
| 2537 | goto out; |
| 2538 | udelay(10); |
| 2539 | } |
| 2540 | /* Hm, it seems this will take some time. Use msleep(). */ |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2541 | for (i = 40; i; i--) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2542 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
| 2543 | if (tmp & B43_IRQ_MAC_SUSPENDED) |
| 2544 | goto out; |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2545 | msleep(1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2546 | } |
| 2547 | b43err(dev->wl, "MAC suspend failed\n"); |
| 2548 | } |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2549 | out: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2550 | dev->mac_suspended++; |
| 2551 | } |
| 2552 | |
| 2553 | static void b43_adjust_opmode(struct b43_wldev *dev) |
| 2554 | { |
| 2555 | struct b43_wl *wl = dev->wl; |
| 2556 | u32 ctl; |
| 2557 | u16 cfp_pretbtt; |
| 2558 | |
| 2559 | ctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 2560 | /* Reset status to STA infrastructure mode. */ |
| 2561 | ctl &= ~B43_MACCTL_AP; |
| 2562 | ctl &= ~B43_MACCTL_KEEP_CTL; |
| 2563 | ctl &= ~B43_MACCTL_KEEP_BADPLCP; |
| 2564 | ctl &= ~B43_MACCTL_KEEP_BAD; |
| 2565 | ctl &= ~B43_MACCTL_PROMISC; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2566 | ctl &= ~B43_MACCTL_BEACPROMISC; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2567 | ctl |= B43_MACCTL_INFRA; |
| 2568 | |
Johannes Berg | 04dea13 | 2008-05-20 12:10:49 +0200 | [diff] [blame] | 2569 | if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) || |
| 2570 | b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT)) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2571 | ctl |= B43_MACCTL_AP; |
| 2572 | else if (b43_is_mode(wl, IEEE80211_IF_TYPE_IBSS)) |
| 2573 | ctl &= ~B43_MACCTL_INFRA; |
| 2574 | |
| 2575 | if (wl->filter_flags & FIF_CONTROL) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2576 | ctl |= B43_MACCTL_KEEP_CTL; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2577 | if (wl->filter_flags & FIF_FCSFAIL) |
| 2578 | ctl |= B43_MACCTL_KEEP_BAD; |
| 2579 | if (wl->filter_flags & FIF_PLCPFAIL) |
| 2580 | ctl |= B43_MACCTL_KEEP_BADPLCP; |
| 2581 | if (wl->filter_flags & FIF_PROMISC_IN_BSS) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2582 | ctl |= B43_MACCTL_PROMISC; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2583 | if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC) |
| 2584 | ctl |= B43_MACCTL_BEACPROMISC; |
| 2585 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2586 | /* Workaround: On old hardware the HW-MAC-address-filter |
| 2587 | * doesn't work properly, so always run promisc in filter |
| 2588 | * it in software. */ |
| 2589 | if (dev->dev->id.revision <= 4) |
| 2590 | ctl |= B43_MACCTL_PROMISC; |
| 2591 | |
| 2592 | b43_write32(dev, B43_MMIO_MACCTL, ctl); |
| 2593 | |
| 2594 | cfp_pretbtt = 2; |
| 2595 | if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) { |
| 2596 | if (dev->dev->bus->chip_id == 0x4306 && |
| 2597 | dev->dev->bus->chip_rev == 3) |
| 2598 | cfp_pretbtt = 100; |
| 2599 | else |
| 2600 | cfp_pretbtt = 50; |
| 2601 | } |
| 2602 | b43_write16(dev, 0x612, cfp_pretbtt); |
| 2603 | } |
| 2604 | |
| 2605 | static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm) |
| 2606 | { |
| 2607 | u16 offset; |
| 2608 | |
| 2609 | if (is_ofdm) { |
| 2610 | offset = 0x480; |
| 2611 | offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; |
| 2612 | } else { |
| 2613 | offset = 0x4C0; |
| 2614 | offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2; |
| 2615 | } |
| 2616 | b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20, |
| 2617 | b43_shm_read16(dev, B43_SHM_SHARED, offset)); |
| 2618 | } |
| 2619 | |
| 2620 | static void b43_rate_memory_init(struct b43_wldev *dev) |
| 2621 | { |
| 2622 | switch (dev->phy.type) { |
| 2623 | case B43_PHYTYPE_A: |
| 2624 | case B43_PHYTYPE_G: |
Michael Buesch | 53a6e23 | 2008-01-13 21:23:44 +0100 | [diff] [blame] | 2625 | case B43_PHYTYPE_N: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2626 | b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1); |
| 2627 | b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1); |
| 2628 | b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1); |
| 2629 | b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1); |
| 2630 | b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1); |
| 2631 | b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1); |
| 2632 | b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1); |
| 2633 | if (dev->phy.type == B43_PHYTYPE_A) |
| 2634 | break; |
| 2635 | /* fallthrough */ |
| 2636 | case B43_PHYTYPE_B: |
| 2637 | b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0); |
| 2638 | b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0); |
| 2639 | b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0); |
| 2640 | b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0); |
| 2641 | break; |
| 2642 | default: |
| 2643 | B43_WARN_ON(1); |
| 2644 | } |
| 2645 | } |
| 2646 | |
Michael Buesch | 5042c50 | 2008-04-05 15:05:00 +0200 | [diff] [blame] | 2647 | /* Set the default values for the PHY TX Control Words. */ |
| 2648 | static void b43_set_phytxctl_defaults(struct b43_wldev *dev) |
| 2649 | { |
| 2650 | u16 ctl = 0; |
| 2651 | |
| 2652 | ctl |= B43_TXH_PHY_ENC_CCK; |
| 2653 | ctl |= B43_TXH_PHY_ANT01AUTO; |
| 2654 | ctl |= B43_TXH_PHY_TXPWR; |
| 2655 | |
| 2656 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); |
| 2657 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl); |
| 2658 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl); |
| 2659 | } |
| 2660 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2661 | /* Set the TX-Antenna for management frames sent by firmware. */ |
| 2662 | static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna) |
| 2663 | { |
Michael Buesch | 5042c50 | 2008-04-05 15:05:00 +0200 | [diff] [blame] | 2664 | u16 ant; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2665 | u16 tmp; |
| 2666 | |
Michael Buesch | 5042c50 | 2008-04-05 15:05:00 +0200 | [diff] [blame] | 2667 | ant = b43_antenna_to_phyctl(antenna); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2668 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2669 | /* For ACK/CTS */ |
| 2670 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL); |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 2671 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2672 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp); |
| 2673 | /* For Probe Resposes */ |
| 2674 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL); |
Michael Buesch | eb189d8b | 2008-01-28 14:47:41 -0800 | [diff] [blame] | 2675 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2676 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp); |
| 2677 | } |
| 2678 | |
| 2679 | /* This is the opposite of b43_chip_init() */ |
| 2680 | static void b43_chip_exit(struct b43_wldev *dev) |
| 2681 | { |
Michael Buesch | 8e9f752 | 2007-09-27 21:35:34 +0200 | [diff] [blame] | 2682 | b43_radio_turn_off(dev, 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2683 | b43_gpio_cleanup(dev); |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 2684 | b43_lo_g_cleanup(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2685 | /* firmware is released later */ |
| 2686 | } |
| 2687 | |
| 2688 | /* Initialize the chip |
| 2689 | * http://bcm-specs.sipsolutions.net/ChipInit |
| 2690 | */ |
| 2691 | static int b43_chip_init(struct b43_wldev *dev) |
| 2692 | { |
| 2693 | struct b43_phy *phy = &dev->phy; |
| 2694 | int err, tmp; |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2695 | u32 value32, macctl; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2696 | u16 value16; |
| 2697 | |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 2698 | /* Initialize the MAC control */ |
| 2699 | macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED; |
| 2700 | if (dev->phy.gmode) |
| 2701 | macctl |= B43_MACCTL_GMODE; |
| 2702 | macctl |= B43_MACCTL_INFRA; |
| 2703 | b43_write32(dev, B43_MMIO_MACCTL, macctl); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2704 | |
| 2705 | err = b43_request_firmware(dev); |
| 2706 | if (err) |
| 2707 | goto out; |
| 2708 | err = b43_upload_microcode(dev); |
| 2709 | if (err) |
| 2710 | goto out; /* firmware is released later */ |
| 2711 | |
| 2712 | err = b43_gpio_init(dev); |
| 2713 | if (err) |
| 2714 | goto out; /* firmware is released later */ |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 2715 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2716 | err = b43_upload_initvals(dev); |
| 2717 | if (err) |
Larry Finger | 1a8d122 | 2007-12-14 13:59:11 +0100 | [diff] [blame] | 2718 | goto err_gpio_clean; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2719 | b43_radio_turn_on(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2720 | |
| 2721 | b43_write16(dev, 0x03E6, 0x0000); |
| 2722 | err = b43_phy_init(dev); |
| 2723 | if (err) |
| 2724 | goto err_radio_off; |
| 2725 | |
| 2726 | /* Select initial Interference Mitigation. */ |
| 2727 | tmp = phy->interfmode; |
| 2728 | phy->interfmode = B43_INTERFMODE_NONE; |
| 2729 | b43_radio_set_interference_mitigation(dev, tmp); |
| 2730 | |
| 2731 | b43_set_rx_antenna(dev, B43_ANTENNA_DEFAULT); |
| 2732 | b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT); |
| 2733 | |
| 2734 | if (phy->type == B43_PHYTYPE_B) { |
| 2735 | value16 = b43_read16(dev, 0x005E); |
| 2736 | value16 |= 0x0004; |
| 2737 | b43_write16(dev, 0x005E, value16); |
| 2738 | } |
| 2739 | b43_write32(dev, 0x0100, 0x01000000); |
| 2740 | if (dev->dev->id.revision < 5) |
| 2741 | b43_write32(dev, 0x010C, 0x01000000); |
| 2742 | |
| 2743 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) |
| 2744 | & ~B43_MACCTL_INFRA); |
| 2745 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) |
| 2746 | | B43_MACCTL_INFRA); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2747 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2748 | /* Probe Response Timeout value */ |
| 2749 | /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ |
| 2750 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000); |
| 2751 | |
| 2752 | /* Initially set the wireless operation mode. */ |
| 2753 | b43_adjust_opmode(dev); |
| 2754 | |
| 2755 | if (dev->dev->id.revision < 3) { |
| 2756 | b43_write16(dev, 0x060E, 0x0000); |
| 2757 | b43_write16(dev, 0x0610, 0x8000); |
| 2758 | b43_write16(dev, 0x0604, 0x0000); |
| 2759 | b43_write16(dev, 0x0606, 0x0200); |
| 2760 | } else { |
| 2761 | b43_write32(dev, 0x0188, 0x80000000); |
| 2762 | b43_write32(dev, 0x018C, 0x02000000); |
| 2763 | } |
| 2764 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000); |
| 2765 | b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00); |
| 2766 | b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00); |
| 2767 | b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00); |
| 2768 | b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00); |
| 2769 | b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00); |
| 2770 | b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00); |
| 2771 | |
| 2772 | value32 = ssb_read32(dev->dev, SSB_TMSLOW); |
| 2773 | value32 |= 0x00100000; |
| 2774 | ssb_write32(dev->dev, SSB_TMSLOW, value32); |
| 2775 | |
| 2776 | b43_write16(dev, B43_MMIO_POWERUP_DELAY, |
| 2777 | dev->dev->bus->chipco.fast_pwrup_delay); |
| 2778 | |
| 2779 | err = 0; |
| 2780 | b43dbg(dev->wl, "Chip initialized\n"); |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 2781 | out: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2782 | return err; |
| 2783 | |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 2784 | err_radio_off: |
Michael Buesch | 8e9f752 | 2007-09-27 21:35:34 +0200 | [diff] [blame] | 2785 | b43_radio_turn_off(dev, 1); |
Larry Finger | 1a8d122 | 2007-12-14 13:59:11 +0100 | [diff] [blame] | 2786 | err_gpio_clean: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2787 | b43_gpio_cleanup(dev); |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 2788 | return err; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2789 | } |
| 2790 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2791 | static void b43_periodic_every60sec(struct b43_wldev *dev) |
| 2792 | { |
| 2793 | struct b43_phy *phy = &dev->phy; |
| 2794 | |
Michael Buesch | 53a6e23 | 2008-01-13 21:23:44 +0100 | [diff] [blame] | 2795 | if (phy->type != B43_PHYTYPE_G) |
| 2796 | return; |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 2797 | if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2798 | b43_mac_suspend(dev); |
| 2799 | b43_calc_nrssi_slope(dev); |
| 2800 | if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) { |
| 2801 | u8 old_chan = phy->channel; |
| 2802 | |
| 2803 | /* VCO Calibration */ |
| 2804 | if (old_chan >= 8) |
| 2805 | b43_radio_selectchannel(dev, 1, 0); |
| 2806 | else |
| 2807 | b43_radio_selectchannel(dev, 13, 0); |
| 2808 | b43_radio_selectchannel(dev, old_chan, 0); |
| 2809 | } |
| 2810 | b43_mac_enable(dev); |
| 2811 | } |
| 2812 | } |
| 2813 | |
| 2814 | static void b43_periodic_every30sec(struct b43_wldev *dev) |
| 2815 | { |
| 2816 | /* Update device statistics. */ |
| 2817 | b43_calculate_link_quality(dev); |
| 2818 | } |
| 2819 | |
| 2820 | static void b43_periodic_every15sec(struct b43_wldev *dev) |
| 2821 | { |
| 2822 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | 9b839a7 | 2008-06-20 17:44:02 +0200 | [diff] [blame] | 2823 | u16 wdr; |
| 2824 | |
| 2825 | if (dev->fw.opensource) { |
| 2826 | /* Check if the firmware is still alive. |
| 2827 | * It will reset the watchdog counter to 0 in its idle loop. */ |
| 2828 | wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG); |
| 2829 | if (unlikely(wdr)) { |
| 2830 | b43err(dev->wl, "Firmware watchdog: The firmware died!\n"); |
| 2831 | b43_controller_restart(dev, "Firmware watchdog"); |
| 2832 | return; |
| 2833 | } else { |
| 2834 | b43_shm_write16(dev, B43_SHM_SCRATCH, |
| 2835 | B43_WATCHDOG_REG, 1); |
| 2836 | } |
| 2837 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2838 | |
| 2839 | if (phy->type == B43_PHYTYPE_G) { |
| 2840 | //TODO: update_aci_moving_average |
| 2841 | if (phy->aci_enable && phy->aci_wlan_automatic) { |
| 2842 | b43_mac_suspend(dev); |
| 2843 | if (!phy->aci_enable && 1 /*TODO: not scanning? */ ) { |
| 2844 | if (0 /*TODO: bunch of conditions */ ) { |
| 2845 | b43_radio_set_interference_mitigation |
| 2846 | (dev, B43_INTERFMODE_MANUALWLAN); |
| 2847 | } |
| 2848 | } else if (1 /*TODO*/) { |
| 2849 | /* |
| 2850 | if ((aci_average > 1000) && !(b43_radio_aci_scan(dev))) { |
| 2851 | b43_radio_set_interference_mitigation(dev, |
| 2852 | B43_INTERFMODE_NONE); |
| 2853 | } |
| 2854 | */ |
| 2855 | } |
| 2856 | b43_mac_enable(dev); |
| 2857 | } else if (phy->interfmode == B43_INTERFMODE_NONWLAN && |
| 2858 | phy->rev == 1) { |
| 2859 | //TODO: implement rev1 workaround |
| 2860 | } |
| 2861 | } |
| 2862 | b43_phy_xmitpower(dev); //FIXME: unless scanning? |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 2863 | b43_lo_g_maintanance_work(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2864 | //TODO for APHY (temperature?) |
Stefano Brivio | 00e0b8c | 2007-11-25 11:10:33 +0100 | [diff] [blame] | 2865 | |
| 2866 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); |
| 2867 | wmb(); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2868 | } |
| 2869 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2870 | static void do_periodic_work(struct b43_wldev *dev) |
| 2871 | { |
| 2872 | unsigned int state; |
| 2873 | |
| 2874 | state = dev->periodic_state; |
Michael Buesch | 42bb4cd | 2007-09-28 14:22:33 +0200 | [diff] [blame] | 2875 | if (state % 4 == 0) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2876 | b43_periodic_every60sec(dev); |
Michael Buesch | 42bb4cd | 2007-09-28 14:22:33 +0200 | [diff] [blame] | 2877 | if (state % 2 == 0) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2878 | b43_periodic_every30sec(dev); |
Michael Buesch | 42bb4cd | 2007-09-28 14:22:33 +0200 | [diff] [blame] | 2879 | b43_periodic_every15sec(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2880 | } |
| 2881 | |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2882 | /* Periodic work locking policy: |
| 2883 | * The whole periodic work handler is protected by |
| 2884 | * wl->mutex. If another lock is needed somewhere in the |
| 2885 | * pwork callchain, it's aquired in-place, where it's needed. |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2886 | */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2887 | static void b43_periodic_work_handler(struct work_struct *work) |
| 2888 | { |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2889 | struct b43_wldev *dev = container_of(work, struct b43_wldev, |
| 2890 | periodic_work.work); |
| 2891 | struct b43_wl *wl = dev->wl; |
| 2892 | unsigned long delay; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2893 | |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2894 | mutex_lock(&wl->mutex); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2895 | |
| 2896 | if (unlikely(b43_status(dev) != B43_STAT_STARTED)) |
| 2897 | goto out; |
| 2898 | if (b43_debug(dev, B43_DBG_PWORK_STOP)) |
| 2899 | goto out_requeue; |
| 2900 | |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2901 | do_periodic_work(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2902 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2903 | dev->periodic_state++; |
Michael Buesch | 42bb4cd | 2007-09-28 14:22:33 +0200 | [diff] [blame] | 2904 | out_requeue: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2905 | if (b43_debug(dev, B43_DBG_PWORK_FAST)) |
| 2906 | delay = msecs_to_jiffies(50); |
| 2907 | else |
Anton Blanchard | 82cd682 | 2007-10-15 00:42:23 -0500 | [diff] [blame] | 2908 | delay = round_jiffies_relative(HZ * 15); |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2909 | queue_delayed_work(wl->hw->workqueue, &dev->periodic_work, delay); |
Michael Buesch | 42bb4cd | 2007-09-28 14:22:33 +0200 | [diff] [blame] | 2910 | out: |
Michael Buesch | 05b64b3 | 2007-09-28 16:19:03 +0200 | [diff] [blame] | 2911 | mutex_unlock(&wl->mutex); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2912 | } |
| 2913 | |
| 2914 | static void b43_periodic_tasks_setup(struct b43_wldev *dev) |
| 2915 | { |
| 2916 | struct delayed_work *work = &dev->periodic_work; |
| 2917 | |
| 2918 | dev->periodic_state = 0; |
| 2919 | INIT_DELAYED_WORK(work, b43_periodic_work_handler); |
| 2920 | queue_delayed_work(dev->wl->hw->workqueue, work, 0); |
| 2921 | } |
| 2922 | |
Michael Buesch | f3dd3fc | 2007-12-22 21:56:30 +0100 | [diff] [blame] | 2923 | /* Check if communication with the device works correctly. */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2924 | static int b43_validate_chipaccess(struct b43_wldev *dev) |
| 2925 | { |
Michael Buesch | f3dd3fc | 2007-12-22 21:56:30 +0100 | [diff] [blame] | 2926 | u32 v, backup; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2927 | |
Michael Buesch | f3dd3fc | 2007-12-22 21:56:30 +0100 | [diff] [blame] | 2928 | backup = b43_shm_read32(dev, B43_SHM_SHARED, 0); |
| 2929 | |
| 2930 | /* Check for read/write and endianness problems. */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2931 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55); |
| 2932 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55) |
| 2933 | goto error; |
Michael Buesch | f3dd3fc | 2007-12-22 21:56:30 +0100 | [diff] [blame] | 2934 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA); |
| 2935 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2936 | goto error; |
| 2937 | |
Michael Buesch | f3dd3fc | 2007-12-22 21:56:30 +0100 | [diff] [blame] | 2938 | b43_shm_write32(dev, B43_SHM_SHARED, 0, backup); |
| 2939 | |
| 2940 | if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) { |
| 2941 | /* The 32bit register shadows the two 16bit registers |
| 2942 | * with update sideeffects. Validate this. */ |
| 2943 | b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA); |
| 2944 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB); |
| 2945 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB) |
| 2946 | goto error; |
| 2947 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC) |
| 2948 | goto error; |
| 2949 | } |
| 2950 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0); |
| 2951 | |
| 2952 | v = b43_read32(dev, B43_MMIO_MACCTL); |
| 2953 | v |= B43_MACCTL_GMODE; |
| 2954 | if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2955 | goto error; |
| 2956 | |
| 2957 | return 0; |
Michael Buesch | f3dd3fc | 2007-12-22 21:56:30 +0100 | [diff] [blame] | 2958 | error: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2959 | b43err(dev->wl, "Failed to validate the chipaccess\n"); |
| 2960 | return -ENODEV; |
| 2961 | } |
| 2962 | |
| 2963 | static void b43_security_init(struct b43_wldev *dev) |
| 2964 | { |
| 2965 | dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20; |
| 2966 | B43_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key)); |
| 2967 | dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP); |
| 2968 | /* KTP is a word address, but we address SHM bytewise. |
| 2969 | * So multiply by two. |
| 2970 | */ |
| 2971 | dev->ktp *= 2; |
| 2972 | if (dev->dev->id.revision >= 5) { |
| 2973 | /* Number of RCMTA address slots */ |
| 2974 | b43_write16(dev, B43_MMIO_RCMTA_COUNT, dev->max_nr_keys - 8); |
| 2975 | } |
| 2976 | b43_clear_keys(dev); |
| 2977 | } |
| 2978 | |
| 2979 | static int b43_rng_read(struct hwrng *rng, u32 * data) |
| 2980 | { |
| 2981 | struct b43_wl *wl = (struct b43_wl *)rng->priv; |
| 2982 | unsigned long flags; |
| 2983 | |
| 2984 | /* Don't take wl->mutex here, as it could deadlock with |
| 2985 | * hwrng internal locking. It's not needed to take |
| 2986 | * wl->mutex here, anyway. */ |
| 2987 | |
| 2988 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 2989 | *data = b43_read16(wl->current_dev, B43_MMIO_RNG); |
| 2990 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 2991 | |
| 2992 | return (sizeof(u16)); |
| 2993 | } |
| 2994 | |
Rafael J. Wysocki | b844eba | 2008-03-23 20:28:24 +0100 | [diff] [blame] | 2995 | static void b43_rng_exit(struct b43_wl *wl) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2996 | { |
| 2997 | if (wl->rng_initialized) |
Rafael J. Wysocki | b844eba | 2008-03-23 20:28:24 +0100 | [diff] [blame] | 2998 | hwrng_unregister(&wl->rng); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 2999 | } |
| 3000 | |
| 3001 | static int b43_rng_init(struct b43_wl *wl) |
| 3002 | { |
| 3003 | int err; |
| 3004 | |
| 3005 | snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), |
| 3006 | "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); |
| 3007 | wl->rng.name = wl->rng_name; |
| 3008 | wl->rng.data_read = b43_rng_read; |
| 3009 | wl->rng.priv = (unsigned long)wl; |
| 3010 | wl->rng_initialized = 1; |
| 3011 | err = hwrng_register(&wl->rng); |
| 3012 | if (err) { |
| 3013 | wl->rng_initialized = 0; |
| 3014 | b43err(wl, "Failed to register the random " |
| 3015 | "number generator (%d)\n", err); |
| 3016 | } |
| 3017 | |
| 3018 | return err; |
| 3019 | } |
| 3020 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3021 | static int b43_op_tx(struct ieee80211_hw *hw, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3022 | struct sk_buff *skb) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3023 | { |
| 3024 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 3025 | struct b43_wldev *dev = wl->current_dev; |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 3026 | unsigned long flags; |
| 3027 | int err; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3028 | |
Michael Buesch | 5100d5a | 2008-03-29 21:01:16 +0100 | [diff] [blame] | 3029 | if (unlikely(skb->len < 2 + 2 + 6)) { |
| 3030 | /* Too short, this can't be a valid frame. */ |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 3031 | dev_kfree_skb_any(skb); |
| 3032 | return NETDEV_TX_OK; |
Michael Buesch | 5100d5a | 2008-03-29 21:01:16 +0100 | [diff] [blame] | 3033 | } |
| 3034 | B43_WARN_ON(skb_shinfo(skb)->nr_frags); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3035 | if (unlikely(!dev)) |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 3036 | return NETDEV_TX_BUSY; |
| 3037 | |
| 3038 | /* Transmissions on seperate queues can run concurrently. */ |
| 3039 | read_lock_irqsave(&wl->tx_lock, flags); |
| 3040 | |
| 3041 | err = -ENODEV; |
| 3042 | if (likely(b43_status(dev) >= B43_STAT_STARTED)) { |
| 3043 | if (b43_using_pio_transfers(dev)) |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3044 | err = b43_pio_tx(dev, skb); |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 3045 | else |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3046 | err = b43_dma_tx(dev, skb); |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 3047 | } |
| 3048 | |
| 3049 | read_unlock_irqrestore(&wl->tx_lock, flags); |
| 3050 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3051 | if (unlikely(err)) |
| 3052 | return NETDEV_TX_BUSY; |
| 3053 | return NETDEV_TX_OK; |
| 3054 | } |
| 3055 | |
Michael Buesch | e6f5b93 | 2008-03-05 21:18:49 +0100 | [diff] [blame] | 3056 | /* Locking: wl->irq_lock */ |
| 3057 | static void b43_qos_params_upload(struct b43_wldev *dev, |
| 3058 | const struct ieee80211_tx_queue_params *p, |
| 3059 | u16 shm_offset) |
| 3060 | { |
| 3061 | u16 params[B43_NR_QOSPARAMS]; |
| 3062 | int cw_min, cw_max, aifs, bslots, tmp; |
| 3063 | unsigned int i; |
| 3064 | |
| 3065 | const u16 aCWmin = 0x0001; |
| 3066 | const u16 aCWmax = 0x03FF; |
| 3067 | |
| 3068 | /* Calculate the default values for the parameters, if needed. */ |
| 3069 | switch (shm_offset) { |
| 3070 | case B43_QOS_VOICE: |
| 3071 | aifs = (p->aifs == -1) ? 2 : p->aifs; |
| 3072 | cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 4 - 1) : p->cw_min; |
| 3073 | cw_max = (p->cw_max == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_max; |
| 3074 | break; |
| 3075 | case B43_QOS_VIDEO: |
| 3076 | aifs = (p->aifs == -1) ? 2 : p->aifs; |
| 3077 | cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_min; |
| 3078 | cw_max = (p->cw_max == 0) ? aCWmin : p->cw_max; |
| 3079 | break; |
| 3080 | case B43_QOS_BESTEFFORT: |
| 3081 | aifs = (p->aifs == -1) ? 3 : p->aifs; |
| 3082 | cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min; |
| 3083 | cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max; |
| 3084 | break; |
| 3085 | case B43_QOS_BACKGROUND: |
| 3086 | aifs = (p->aifs == -1) ? 7 : p->aifs; |
| 3087 | cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min; |
| 3088 | cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max; |
| 3089 | break; |
| 3090 | default: |
| 3091 | B43_WARN_ON(1); |
| 3092 | return; |
| 3093 | } |
| 3094 | if (cw_min <= 0) |
| 3095 | cw_min = aCWmin; |
| 3096 | if (cw_max <= 0) |
| 3097 | cw_max = aCWmin; |
| 3098 | bslots = b43_read16(dev, B43_MMIO_RNG) % cw_min; |
| 3099 | |
| 3100 | memset(¶ms, 0, sizeof(params)); |
| 3101 | |
| 3102 | params[B43_QOSPARAM_TXOP] = p->txop * 32; |
| 3103 | params[B43_QOSPARAM_CWMIN] = cw_min; |
| 3104 | params[B43_QOSPARAM_CWMAX] = cw_max; |
| 3105 | params[B43_QOSPARAM_CWCUR] = cw_min; |
| 3106 | params[B43_QOSPARAM_AIFS] = aifs; |
| 3107 | params[B43_QOSPARAM_BSLOTS] = bslots; |
| 3108 | params[B43_QOSPARAM_REGGAP] = bslots + aifs; |
| 3109 | |
| 3110 | for (i = 0; i < ARRAY_SIZE(params); i++) { |
| 3111 | if (i == B43_QOSPARAM_STATUS) { |
| 3112 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, |
| 3113 | shm_offset + (i * 2)); |
| 3114 | /* Mark the parameters as updated. */ |
| 3115 | tmp |= 0x100; |
| 3116 | b43_shm_write16(dev, B43_SHM_SHARED, |
| 3117 | shm_offset + (i * 2), |
| 3118 | tmp); |
| 3119 | } else { |
| 3120 | b43_shm_write16(dev, B43_SHM_SHARED, |
| 3121 | shm_offset + (i * 2), |
| 3122 | params[i]); |
| 3123 | } |
| 3124 | } |
| 3125 | } |
| 3126 | |
| 3127 | /* Update the QOS parameters in hardware. */ |
| 3128 | static void b43_qos_update(struct b43_wldev *dev) |
| 3129 | { |
| 3130 | struct b43_wl *wl = dev->wl; |
| 3131 | struct b43_qos_params *params; |
| 3132 | unsigned long flags; |
| 3133 | unsigned int i; |
| 3134 | |
| 3135 | /* Mapping of mac80211 queues to b43 SHM offsets. */ |
| 3136 | static const u16 qos_shm_offsets[] = { |
| 3137 | [0] = B43_QOS_VOICE, |
| 3138 | [1] = B43_QOS_VIDEO, |
| 3139 | [2] = B43_QOS_BESTEFFORT, |
| 3140 | [3] = B43_QOS_BACKGROUND, |
| 3141 | }; |
| 3142 | BUILD_BUG_ON(ARRAY_SIZE(qos_shm_offsets) != ARRAY_SIZE(wl->qos_params)); |
| 3143 | |
| 3144 | b43_mac_suspend(dev); |
| 3145 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3146 | |
| 3147 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
| 3148 | params = &(wl->qos_params[i]); |
| 3149 | if (params->need_hw_update) { |
| 3150 | b43_qos_params_upload(dev, &(params->p), |
| 3151 | qos_shm_offsets[i]); |
| 3152 | params->need_hw_update = 0; |
| 3153 | } |
| 3154 | } |
| 3155 | |
| 3156 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3157 | b43_mac_enable(dev); |
| 3158 | } |
| 3159 | |
| 3160 | static void b43_qos_clear(struct b43_wl *wl) |
| 3161 | { |
| 3162 | struct b43_qos_params *params; |
| 3163 | unsigned int i; |
| 3164 | |
| 3165 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
| 3166 | params = &(wl->qos_params[i]); |
| 3167 | |
| 3168 | memset(&(params->p), 0, sizeof(params->p)); |
| 3169 | params->p.aifs = -1; |
| 3170 | params->need_hw_update = 1; |
| 3171 | } |
| 3172 | } |
| 3173 | |
| 3174 | /* Initialize the core's QOS capabilities */ |
| 3175 | static void b43_qos_init(struct b43_wldev *dev) |
| 3176 | { |
| 3177 | struct b43_wl *wl = dev->wl; |
| 3178 | unsigned int i; |
| 3179 | |
| 3180 | /* Upload the current QOS parameters. */ |
| 3181 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) |
| 3182 | wl->qos_params[i].need_hw_update = 1; |
| 3183 | b43_qos_update(dev); |
| 3184 | |
| 3185 | /* Enable QOS support. */ |
| 3186 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF); |
| 3187 | b43_write16(dev, B43_MMIO_IFSCTL, |
| 3188 | b43_read16(dev, B43_MMIO_IFSCTL) |
| 3189 | | B43_MMIO_IFSCTL_USE_EDCF); |
| 3190 | } |
| 3191 | |
| 3192 | static void b43_qos_update_work(struct work_struct *work) |
| 3193 | { |
| 3194 | struct b43_wl *wl = container_of(work, struct b43_wl, qos_update_work); |
| 3195 | struct b43_wldev *dev; |
| 3196 | |
| 3197 | mutex_lock(&wl->mutex); |
| 3198 | dev = wl->current_dev; |
| 3199 | if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) |
| 3200 | b43_qos_update(dev); |
| 3201 | mutex_unlock(&wl->mutex); |
| 3202 | } |
| 3203 | |
Johannes Berg | e100bb6 | 2008-04-30 18:51:21 +0200 | [diff] [blame] | 3204 | static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue, |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3205 | const struct ieee80211_tx_queue_params *params) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3206 | { |
Michael Buesch | e6f5b93 | 2008-03-05 21:18:49 +0100 | [diff] [blame] | 3207 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 3208 | unsigned long flags; |
| 3209 | unsigned int queue = (unsigned int)_queue; |
| 3210 | struct b43_qos_params *p; |
| 3211 | |
| 3212 | if (queue >= ARRAY_SIZE(wl->qos_params)) { |
| 3213 | /* Queue not available or don't support setting |
| 3214 | * params on this queue. Return success to not |
| 3215 | * confuse mac80211. */ |
| 3216 | return 0; |
| 3217 | } |
| 3218 | |
| 3219 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3220 | p = &(wl->qos_params[queue]); |
| 3221 | memcpy(&(p->p), params, sizeof(p->p)); |
| 3222 | p->need_hw_update = 1; |
| 3223 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3224 | |
| 3225 | queue_work(hw->workqueue, &wl->qos_update_work); |
| 3226 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3227 | return 0; |
| 3228 | } |
| 3229 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3230 | static int b43_op_get_tx_stats(struct ieee80211_hw *hw, |
| 3231 | struct ieee80211_tx_queue_stats *stats) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3232 | { |
| 3233 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 3234 | struct b43_wldev *dev = wl->current_dev; |
| 3235 | unsigned long flags; |
| 3236 | int err = -ENODEV; |
| 3237 | |
| 3238 | if (!dev) |
| 3239 | goto out; |
| 3240 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3241 | if (likely(b43_status(dev) >= B43_STAT_STARTED)) { |
Michael Buesch | 5100d5a | 2008-03-29 21:01:16 +0100 | [diff] [blame] | 3242 | if (b43_using_pio_transfers(dev)) |
| 3243 | b43_pio_get_tx_stats(dev, stats); |
| 3244 | else |
| 3245 | b43_dma_get_tx_stats(dev, stats); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3246 | err = 0; |
| 3247 | } |
| 3248 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3249 | out: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3250 | return err; |
| 3251 | } |
| 3252 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3253 | static int b43_op_get_stats(struct ieee80211_hw *hw, |
| 3254 | struct ieee80211_low_level_stats *stats) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3255 | { |
| 3256 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 3257 | unsigned long flags; |
| 3258 | |
| 3259 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3260 | memcpy(stats, &wl->ieee_stats, sizeof(*stats)); |
| 3261 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3262 | |
| 3263 | return 0; |
| 3264 | } |
| 3265 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3266 | static void b43_put_phy_into_reset(struct b43_wldev *dev) |
| 3267 | { |
| 3268 | struct ssb_device *sdev = dev->dev; |
| 3269 | u32 tmslow; |
| 3270 | |
| 3271 | tmslow = ssb_read32(sdev, SSB_TMSLOW); |
| 3272 | tmslow &= ~B43_TMSLOW_GMODE; |
| 3273 | tmslow |= B43_TMSLOW_PHYRESET; |
| 3274 | tmslow |= SSB_TMSLOW_FGC; |
| 3275 | ssb_write32(sdev, SSB_TMSLOW, tmslow); |
| 3276 | msleep(1); |
| 3277 | |
| 3278 | tmslow = ssb_read32(sdev, SSB_TMSLOW); |
| 3279 | tmslow &= ~SSB_TMSLOW_FGC; |
| 3280 | tmslow |= B43_TMSLOW_PHYRESET; |
| 3281 | ssb_write32(sdev, SSB_TMSLOW, tmslow); |
| 3282 | msleep(1); |
| 3283 | } |
| 3284 | |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3285 | static const char * band_to_string(enum ieee80211_band band) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3286 | { |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3287 | switch (band) { |
| 3288 | case IEEE80211_BAND_5GHZ: |
| 3289 | return "5"; |
| 3290 | case IEEE80211_BAND_2GHZ: |
| 3291 | return "2.4"; |
| 3292 | default: |
| 3293 | break; |
| 3294 | } |
| 3295 | B43_WARN_ON(1); |
| 3296 | return ""; |
| 3297 | } |
| 3298 | |
| 3299 | /* Expects wl->mutex locked */ |
| 3300 | static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan) |
| 3301 | { |
| 3302 | struct b43_wldev *up_dev = NULL; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3303 | struct b43_wldev *down_dev; |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3304 | struct b43_wldev *d; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3305 | int err; |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3306 | bool gmode; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3307 | int prev_status; |
| 3308 | |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3309 | /* Find a device and PHY which supports the band. */ |
| 3310 | list_for_each_entry(d, &wl->devlist, list) { |
| 3311 | switch (chan->band) { |
| 3312 | case IEEE80211_BAND_5GHZ: |
| 3313 | if (d->phy.supports_5ghz) { |
| 3314 | up_dev = d; |
| 3315 | gmode = 0; |
| 3316 | } |
| 3317 | break; |
| 3318 | case IEEE80211_BAND_2GHZ: |
| 3319 | if (d->phy.supports_2ghz) { |
| 3320 | up_dev = d; |
| 3321 | gmode = 1; |
| 3322 | } |
| 3323 | break; |
| 3324 | default: |
| 3325 | B43_WARN_ON(1); |
| 3326 | return -EINVAL; |
| 3327 | } |
| 3328 | if (up_dev) |
| 3329 | break; |
| 3330 | } |
| 3331 | if (!up_dev) { |
| 3332 | b43err(wl, "Could not find a device for %s-GHz band operation\n", |
| 3333 | band_to_string(chan->band)); |
| 3334 | return -ENODEV; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3335 | } |
| 3336 | if ((up_dev == wl->current_dev) && |
| 3337 | (!!wl->current_dev->phy.gmode == !!gmode)) { |
| 3338 | /* This device is already running. */ |
| 3339 | return 0; |
| 3340 | } |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3341 | b43dbg(wl, "Switching to %s-GHz band\n", |
| 3342 | band_to_string(chan->band)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3343 | down_dev = wl->current_dev; |
| 3344 | |
| 3345 | prev_status = b43_status(down_dev); |
| 3346 | /* Shutdown the currently running core. */ |
| 3347 | if (prev_status >= B43_STAT_STARTED) |
| 3348 | b43_wireless_core_stop(down_dev); |
| 3349 | if (prev_status >= B43_STAT_INITIALIZED) |
| 3350 | b43_wireless_core_exit(down_dev); |
| 3351 | |
| 3352 | if (down_dev != up_dev) { |
| 3353 | /* We switch to a different core, so we put PHY into |
| 3354 | * RESET on the old core. */ |
| 3355 | b43_put_phy_into_reset(down_dev); |
| 3356 | } |
| 3357 | |
| 3358 | /* Now start the new core. */ |
| 3359 | up_dev->phy.gmode = gmode; |
| 3360 | if (prev_status >= B43_STAT_INITIALIZED) { |
| 3361 | err = b43_wireless_core_init(up_dev); |
| 3362 | if (err) { |
| 3363 | b43err(wl, "Fatal: Could not initialize device for " |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3364 | "selected %s-GHz band\n", |
| 3365 | band_to_string(chan->band)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3366 | goto init_failure; |
| 3367 | } |
| 3368 | } |
| 3369 | if (prev_status >= B43_STAT_STARTED) { |
| 3370 | err = b43_wireless_core_start(up_dev); |
| 3371 | if (err) { |
| 3372 | b43err(wl, "Fatal: Coult not start device for " |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3373 | "selected %s-GHz band\n", |
| 3374 | band_to_string(chan->band)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3375 | b43_wireless_core_exit(up_dev); |
| 3376 | goto init_failure; |
| 3377 | } |
| 3378 | } |
| 3379 | B43_WARN_ON(b43_status(up_dev) != prev_status); |
| 3380 | |
| 3381 | wl->current_dev = up_dev; |
| 3382 | |
| 3383 | return 0; |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3384 | init_failure: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3385 | /* Whoops, failed to init the new core. No core is operating now. */ |
| 3386 | wl->current_dev = NULL; |
| 3387 | return err; |
| 3388 | } |
| 3389 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3390 | static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3391 | { |
| 3392 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 3393 | struct b43_wldev *dev; |
| 3394 | struct b43_phy *phy; |
| 3395 | unsigned long flags; |
Michael Buesch | 9db1f6d | 2007-12-22 21:54:20 +0100 | [diff] [blame] | 3396 | int antenna; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3397 | int err = 0; |
| 3398 | u32 savedirqs; |
| 3399 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3400 | mutex_lock(&wl->mutex); |
| 3401 | |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 3402 | /* Switch the band (if necessary). This might change the active core. */ |
| 3403 | err = b43_switch_band(wl, conf->channel); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3404 | if (err) |
| 3405 | goto out_unlock_mutex; |
| 3406 | dev = wl->current_dev; |
| 3407 | phy = &dev->phy; |
| 3408 | |
| 3409 | /* Disable IRQs while reconfiguring the device. |
| 3410 | * This makes it possible to drop the spinlock throughout |
| 3411 | * the reconfiguration process. */ |
| 3412 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3413 | if (b43_status(dev) < B43_STAT_STARTED) { |
| 3414 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3415 | goto out_unlock_mutex; |
| 3416 | } |
| 3417 | savedirqs = b43_interrupt_disable(dev, B43_IRQ_ALL); |
| 3418 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3419 | b43_synchronize_irq(dev); |
| 3420 | |
| 3421 | /* Switch to the requested channel. |
| 3422 | * The firmware takes care of races with the TX handler. */ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 3423 | if (conf->channel->hw_value != phy->channel) |
| 3424 | b43_radio_selectchannel(dev, conf->channel->hw_value, 0); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3425 | |
| 3426 | /* Enable/Disable ShortSlot timing. */ |
| 3427 | if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)) != |
| 3428 | dev->short_slot) { |
| 3429 | B43_WARN_ON(phy->type != B43_PHYTYPE_G); |
| 3430 | if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) |
| 3431 | b43_short_slot_timing_enable(dev); |
| 3432 | else |
| 3433 | b43_short_slot_timing_disable(dev); |
| 3434 | } |
| 3435 | |
Johannes Berg | d42ce84 | 2007-11-23 14:50:51 +0100 | [diff] [blame] | 3436 | dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
| 3437 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3438 | /* Adjust the desired TX power level. */ |
| 3439 | if (conf->power_level != 0) { |
| 3440 | if (conf->power_level != phy->power_level) { |
| 3441 | phy->power_level = conf->power_level; |
| 3442 | b43_phy_xmitpower(dev); |
| 3443 | } |
| 3444 | } |
| 3445 | |
| 3446 | /* Antennas for RX and management frame TX. */ |
Michael Buesch | 9db1f6d | 2007-12-22 21:54:20 +0100 | [diff] [blame] | 3447 | antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_tx); |
| 3448 | b43_mgmtframe_txantenna(dev, antenna); |
| 3449 | antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_rx); |
| 3450 | b43_set_rx_antenna(dev, antenna); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3451 | |
Johannes Berg | 04dea13 | 2008-05-20 12:10:49 +0200 | [diff] [blame] | 3452 | /* Update templates for AP/mesh mode. */ |
| 3453 | if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) || |
| 3454 | b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3455 | b43_set_beacon_int(dev, conf->beacon_int); |
| 3456 | |
Michael Buesch | fda9abc | 2007-09-20 22:14:18 +0200 | [diff] [blame] | 3457 | if (!!conf->radio_enabled != phy->radio_on) { |
| 3458 | if (conf->radio_enabled) { |
| 3459 | b43_radio_turn_on(dev); |
| 3460 | b43info(dev->wl, "Radio turned on by software\n"); |
| 3461 | if (!dev->radio_hw_enable) { |
| 3462 | b43info(dev->wl, "The hardware RF-kill button " |
| 3463 | "still turns the radio physically off. " |
| 3464 | "Press the button to turn it on.\n"); |
| 3465 | } |
| 3466 | } else { |
Michael Buesch | 8e9f752 | 2007-09-27 21:35:34 +0200 | [diff] [blame] | 3467 | b43_radio_turn_off(dev, 0); |
Michael Buesch | fda9abc | 2007-09-20 22:14:18 +0200 | [diff] [blame] | 3468 | b43info(dev->wl, "Radio turned off by software\n"); |
| 3469 | } |
| 3470 | } |
| 3471 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3472 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3473 | b43_interrupt_enable(dev, savedirqs); |
| 3474 | mmiowb(); |
| 3475 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3476 | out_unlock_mutex: |
| 3477 | mutex_unlock(&wl->mutex); |
| 3478 | |
| 3479 | return err; |
| 3480 | } |
| 3481 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3482 | static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3483 | const u8 *local_addr, const u8 *addr, |
| 3484 | struct ieee80211_key_conf *key) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3485 | { |
| 3486 | struct b43_wl *wl = hw_to_b43_wl(hw); |
Michael Buesch | c6dfc9a | 2007-10-28 15:59:58 +0100 | [diff] [blame] | 3487 | struct b43_wldev *dev; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3488 | unsigned long flags; |
| 3489 | u8 algorithm; |
| 3490 | u8 index; |
Michael Buesch | c6dfc9a | 2007-10-28 15:59:58 +0100 | [diff] [blame] | 3491 | int err; |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 3492 | DECLARE_MAC_BUF(mac); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3493 | |
| 3494 | if (modparam_nohwcrypt) |
| 3495 | return -ENOSPC; /* User disabled HW-crypto */ |
| 3496 | |
Michael Buesch | c6dfc9a | 2007-10-28 15:59:58 +0100 | [diff] [blame] | 3497 | mutex_lock(&wl->mutex); |
| 3498 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3499 | |
| 3500 | dev = wl->current_dev; |
| 3501 | err = -ENODEV; |
| 3502 | if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) |
| 3503 | goto out_unlock; |
| 3504 | |
Michael Buesch | 6821783 | 2008-05-17 23:43:57 +0200 | [diff] [blame] | 3505 | if (dev->fw.pcm_request_failed) { |
| 3506 | /* We don't have firmware for the crypto engine. |
| 3507 | * Must use software-crypto. */ |
| 3508 | err = -EOPNOTSUPP; |
| 3509 | goto out_unlock; |
| 3510 | } |
| 3511 | |
Michael Buesch | c6dfc9a | 2007-10-28 15:59:58 +0100 | [diff] [blame] | 3512 | err = -EINVAL; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3513 | switch (key->alg) { |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3514 | case ALG_WEP: |
| 3515 | if (key->keylen == 5) |
| 3516 | algorithm = B43_SEC_ALGO_WEP40; |
| 3517 | else |
| 3518 | algorithm = B43_SEC_ALGO_WEP104; |
| 3519 | break; |
| 3520 | case ALG_TKIP: |
| 3521 | algorithm = B43_SEC_ALGO_TKIP; |
| 3522 | break; |
| 3523 | case ALG_CCMP: |
| 3524 | algorithm = B43_SEC_ALGO_AES; |
| 3525 | break; |
| 3526 | default: |
| 3527 | B43_WARN_ON(1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3528 | goto out_unlock; |
| 3529 | } |
Michael Buesch | c6dfc9a | 2007-10-28 15:59:58 +0100 | [diff] [blame] | 3530 | index = (u8) (key->keyidx); |
| 3531 | if (index > 3) |
| 3532 | goto out_unlock; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3533 | |
| 3534 | switch (cmd) { |
| 3535 | case SET_KEY: |
| 3536 | if (algorithm == B43_SEC_ALGO_TKIP) { |
| 3537 | /* FIXME: No TKIP hardware encryption for now. */ |
| 3538 | err = -EOPNOTSUPP; |
| 3539 | goto out_unlock; |
| 3540 | } |
| 3541 | |
| 3542 | if (is_broadcast_ether_addr(addr)) { |
| 3543 | /* addr is FF:FF:FF:FF:FF:FF for default keys */ |
| 3544 | err = b43_key_write(dev, index, algorithm, |
| 3545 | key->key, key->keylen, NULL, key); |
| 3546 | } else { |
| 3547 | /* |
| 3548 | * either pairwise key or address is 00:00:00:00:00:00 |
| 3549 | * for transmit-only keys |
| 3550 | */ |
| 3551 | err = b43_key_write(dev, -1, algorithm, |
| 3552 | key->key, key->keylen, addr, key); |
| 3553 | } |
| 3554 | if (err) |
| 3555 | goto out_unlock; |
| 3556 | |
| 3557 | if (algorithm == B43_SEC_ALGO_WEP40 || |
| 3558 | algorithm == B43_SEC_ALGO_WEP104) { |
| 3559 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS); |
| 3560 | } else { |
| 3561 | b43_hf_write(dev, |
| 3562 | b43_hf_read(dev) & ~B43_HF_USEDEFKEYS); |
| 3563 | } |
| 3564 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| 3565 | break; |
| 3566 | case DISABLE_KEY: { |
| 3567 | err = b43_key_clear(dev, key->hw_key_idx); |
| 3568 | if (err) |
| 3569 | goto out_unlock; |
| 3570 | break; |
| 3571 | } |
| 3572 | default: |
| 3573 | B43_WARN_ON(1); |
| 3574 | } |
| 3575 | out_unlock: |
| 3576 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3577 | mutex_unlock(&wl->mutex); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3578 | if (!err) { |
| 3579 | b43dbg(wl, "%s hardware based encryption for keyidx: %d, " |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 3580 | "mac: %s\n", |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3581 | cmd == SET_KEY ? "Using" : "Disabling", key->keyidx, |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 3582 | print_mac(mac, addr)); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3583 | } |
| 3584 | return err; |
| 3585 | } |
| 3586 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3587 | static void b43_op_configure_filter(struct ieee80211_hw *hw, |
| 3588 | unsigned int changed, unsigned int *fflags, |
| 3589 | int mc_count, struct dev_addr_list *mc_list) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3590 | { |
| 3591 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 3592 | struct b43_wldev *dev = wl->current_dev; |
| 3593 | unsigned long flags; |
| 3594 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3595 | if (!dev) { |
| 3596 | *fflags = 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3597 | return; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3598 | } |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3599 | |
| 3600 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3601 | *fflags &= FIF_PROMISC_IN_BSS | |
| 3602 | FIF_ALLMULTI | |
| 3603 | FIF_FCSFAIL | |
| 3604 | FIF_PLCPFAIL | |
| 3605 | FIF_CONTROL | |
| 3606 | FIF_OTHER_BSS | |
| 3607 | FIF_BCN_PRBRESP_PROMISC; |
| 3608 | |
| 3609 | changed &= FIF_PROMISC_IN_BSS | |
| 3610 | FIF_ALLMULTI | |
| 3611 | FIF_FCSFAIL | |
| 3612 | FIF_PLCPFAIL | |
| 3613 | FIF_CONTROL | |
| 3614 | FIF_OTHER_BSS | |
| 3615 | FIF_BCN_PRBRESP_PROMISC; |
| 3616 | |
| 3617 | wl->filter_flags = *fflags; |
| 3618 | |
| 3619 | if (changed && b43_status(dev) >= B43_STAT_INITIALIZED) |
| 3620 | b43_adjust_opmode(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3621 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3622 | } |
| 3623 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3624 | static int b43_op_config_interface(struct ieee80211_hw *hw, |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 3625 | struct ieee80211_vif *vif, |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 3626 | struct ieee80211_if_conf *conf) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3627 | { |
| 3628 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 3629 | struct b43_wldev *dev = wl->current_dev; |
| 3630 | unsigned long flags; |
| 3631 | |
| 3632 | if (!dev) |
| 3633 | return -ENODEV; |
| 3634 | mutex_lock(&wl->mutex); |
| 3635 | spin_lock_irqsave(&wl->irq_lock, flags); |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 3636 | B43_WARN_ON(wl->vif != vif); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3637 | if (conf->bssid) |
| 3638 | memcpy(wl->bssid, conf->bssid, ETH_ALEN); |
| 3639 | else |
| 3640 | memset(wl->bssid, 0, ETH_ALEN); |
| 3641 | if (b43_status(dev) >= B43_STAT_INITIALIZED) { |
Johannes Berg | 04dea13 | 2008-05-20 12:10:49 +0200 | [diff] [blame] | 3642 | if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) || |
| 3643 | b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT)) { |
| 3644 | B43_WARN_ON(conf->type != wl->if_type); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3645 | b43_set_ssid(dev, conf->ssid, conf->ssid_len); |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3646 | if (conf->beacon) |
| 3647 | b43_update_templates(wl, conf->beacon); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3648 | } |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 3649 | b43_write_mac_bssid_templates(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3650 | } |
| 3651 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3652 | mutex_unlock(&wl->mutex); |
| 3653 | |
| 3654 | return 0; |
| 3655 | } |
| 3656 | |
| 3657 | /* Locking: wl->mutex */ |
| 3658 | static void b43_wireless_core_stop(struct b43_wldev *dev) |
| 3659 | { |
| 3660 | struct b43_wl *wl = dev->wl; |
| 3661 | unsigned long flags; |
| 3662 | |
| 3663 | if (b43_status(dev) < B43_STAT_STARTED) |
| 3664 | return; |
Stefano Brivio | a19d12d | 2007-11-07 18:16:11 +0100 | [diff] [blame] | 3665 | |
| 3666 | /* Disable and sync interrupts. We must do this before than |
| 3667 | * setting the status to INITIALIZED, as the interrupt handler |
| 3668 | * won't care about IRQs then. */ |
| 3669 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 3670 | dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL); |
| 3671 | b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */ |
| 3672 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 3673 | b43_synchronize_irq(dev); |
| 3674 | |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 3675 | write_lock_irqsave(&wl->tx_lock, flags); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3676 | b43_set_status(dev, B43_STAT_INITIALIZED); |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 3677 | write_unlock_irqrestore(&wl->tx_lock, flags); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3678 | |
Michael Buesch | 5100d5a | 2008-03-29 21:01:16 +0100 | [diff] [blame] | 3679 | b43_pio_stop(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3680 | mutex_unlock(&wl->mutex); |
| 3681 | /* Must unlock as it would otherwise deadlock. No races here. |
| 3682 | * Cancel the possibly running self-rearming periodic work. */ |
| 3683 | cancel_delayed_work_sync(&dev->periodic_work); |
| 3684 | mutex_lock(&wl->mutex); |
| 3685 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3686 | b43_mac_suspend(dev); |
| 3687 | free_irq(dev->dev->irq, dev); |
| 3688 | b43dbg(wl, "Wireless interface stopped\n"); |
| 3689 | } |
| 3690 | |
| 3691 | /* Locking: wl->mutex */ |
| 3692 | static int b43_wireless_core_start(struct b43_wldev *dev) |
| 3693 | { |
| 3694 | int err; |
| 3695 | |
| 3696 | B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED); |
| 3697 | |
| 3698 | drain_txstatus_queue(dev); |
| 3699 | err = request_irq(dev->dev->irq, b43_interrupt_handler, |
| 3700 | IRQF_SHARED, KBUILD_MODNAME, dev); |
| 3701 | if (err) { |
| 3702 | b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq); |
| 3703 | goto out; |
| 3704 | } |
| 3705 | |
| 3706 | /* We are ready to run. */ |
| 3707 | b43_set_status(dev, B43_STAT_STARTED); |
| 3708 | |
| 3709 | /* Start data flow (TX/RX). */ |
| 3710 | b43_mac_enable(dev); |
| 3711 | b43_interrupt_enable(dev, dev->irq_savedstate); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3712 | |
| 3713 | /* Start maintainance work */ |
| 3714 | b43_periodic_tasks_setup(dev); |
| 3715 | |
| 3716 | b43dbg(dev->wl, "Wireless interface started\n"); |
| 3717 | out: |
| 3718 | return err; |
| 3719 | } |
| 3720 | |
| 3721 | /* Get PHY and RADIO versioning numbers */ |
| 3722 | static int b43_phy_versioning(struct b43_wldev *dev) |
| 3723 | { |
| 3724 | struct b43_phy *phy = &dev->phy; |
| 3725 | u32 tmp; |
| 3726 | u8 analog_type; |
| 3727 | u8 phy_type; |
| 3728 | u8 phy_rev; |
| 3729 | u16 radio_manuf; |
| 3730 | u16 radio_ver; |
| 3731 | u16 radio_rev; |
| 3732 | int unsupported = 0; |
| 3733 | |
| 3734 | /* Get PHY versioning */ |
| 3735 | tmp = b43_read16(dev, B43_MMIO_PHY_VER); |
| 3736 | analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT; |
| 3737 | phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT; |
| 3738 | phy_rev = (tmp & B43_PHYVER_VERSION); |
| 3739 | switch (phy_type) { |
| 3740 | case B43_PHYTYPE_A: |
| 3741 | if (phy_rev >= 4) |
| 3742 | unsupported = 1; |
| 3743 | break; |
| 3744 | case B43_PHYTYPE_B: |
| 3745 | if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 |
| 3746 | && phy_rev != 7) |
| 3747 | unsupported = 1; |
| 3748 | break; |
| 3749 | case B43_PHYTYPE_G: |
Larry Finger | 013978b | 2007-11-26 10:29:47 -0600 | [diff] [blame] | 3750 | if (phy_rev > 9) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3751 | unsupported = 1; |
| 3752 | break; |
Michael Buesch | d5c71e4 | 2008-01-04 17:06:29 +0100 | [diff] [blame] | 3753 | #ifdef CONFIG_B43_NPHY |
| 3754 | case B43_PHYTYPE_N: |
| 3755 | if (phy_rev > 1) |
| 3756 | unsupported = 1; |
| 3757 | break; |
| 3758 | #endif |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3759 | default: |
| 3760 | unsupported = 1; |
| 3761 | }; |
| 3762 | if (unsupported) { |
| 3763 | b43err(dev->wl, "FOUND UNSUPPORTED PHY " |
| 3764 | "(Analog %u, Type %u, Revision %u)\n", |
| 3765 | analog_type, phy_type, phy_rev); |
| 3766 | return -EOPNOTSUPP; |
| 3767 | } |
| 3768 | b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n", |
| 3769 | analog_type, phy_type, phy_rev); |
| 3770 | |
| 3771 | /* Get RADIO versioning */ |
| 3772 | if (dev->dev->bus->chip_id == 0x4317) { |
| 3773 | if (dev->dev->bus->chip_rev == 0) |
| 3774 | tmp = 0x3205017F; |
| 3775 | else if (dev->dev->bus->chip_rev == 1) |
| 3776 | tmp = 0x4205017F; |
| 3777 | else |
| 3778 | tmp = 0x5205017F; |
| 3779 | } else { |
| 3780 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); |
Michael Buesch | 243dcfc | 2008-01-13 14:12:44 +0100 | [diff] [blame] | 3781 | tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3782 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); |
Michael Buesch | 243dcfc | 2008-01-13 14:12:44 +0100 | [diff] [blame] | 3783 | tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3784 | } |
| 3785 | radio_manuf = (tmp & 0x00000FFF); |
| 3786 | radio_ver = (tmp & 0x0FFFF000) >> 12; |
| 3787 | radio_rev = (tmp & 0xF0000000) >> 28; |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 3788 | if (radio_manuf != 0x17F /* Broadcom */) |
| 3789 | unsupported = 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3790 | switch (phy_type) { |
| 3791 | case B43_PHYTYPE_A: |
| 3792 | if (radio_ver != 0x2060) |
| 3793 | unsupported = 1; |
| 3794 | if (radio_rev != 1) |
| 3795 | unsupported = 1; |
| 3796 | if (radio_manuf != 0x17F) |
| 3797 | unsupported = 1; |
| 3798 | break; |
| 3799 | case B43_PHYTYPE_B: |
| 3800 | if ((radio_ver & 0xFFF0) != 0x2050) |
| 3801 | unsupported = 1; |
| 3802 | break; |
| 3803 | case B43_PHYTYPE_G: |
| 3804 | if (radio_ver != 0x2050) |
| 3805 | unsupported = 1; |
| 3806 | break; |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 3807 | case B43_PHYTYPE_N: |
Michael Buesch | 243dcfc | 2008-01-13 14:12:44 +0100 | [diff] [blame] | 3808 | if (radio_ver != 0x2055) |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 3809 | unsupported = 1; |
| 3810 | break; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3811 | default: |
| 3812 | B43_WARN_ON(1); |
| 3813 | } |
| 3814 | if (unsupported) { |
| 3815 | b43err(dev->wl, "FOUND UNSUPPORTED RADIO " |
| 3816 | "(Manuf 0x%X, Version 0x%X, Revision %u)\n", |
| 3817 | radio_manuf, radio_ver, radio_rev); |
| 3818 | return -EOPNOTSUPP; |
| 3819 | } |
| 3820 | b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n", |
| 3821 | radio_manuf, radio_ver, radio_rev); |
| 3822 | |
| 3823 | phy->radio_manuf = radio_manuf; |
| 3824 | phy->radio_ver = radio_ver; |
| 3825 | phy->radio_rev = radio_rev; |
| 3826 | |
| 3827 | phy->analog = analog_type; |
| 3828 | phy->type = phy_type; |
| 3829 | phy->rev = phy_rev; |
| 3830 | |
| 3831 | return 0; |
| 3832 | } |
| 3833 | |
| 3834 | static void setup_struct_phy_for_init(struct b43_wldev *dev, |
| 3835 | struct b43_phy *phy) |
| 3836 | { |
| 3837 | struct b43_txpower_lo_control *lo; |
| 3838 | int i; |
| 3839 | |
| 3840 | memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig)); |
| 3841 | memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos)); |
| 3842 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3843 | phy->aci_enable = 0; |
| 3844 | phy->aci_wlan_automatic = 0; |
| 3845 | phy->aci_hw_rssi = 0; |
| 3846 | |
Michael Buesch | fda9abc | 2007-09-20 22:14:18 +0200 | [diff] [blame] | 3847 | phy->radio_off_context.valid = 0; |
| 3848 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3849 | lo = phy->lo_control; |
| 3850 | if (lo) { |
| 3851 | memset(lo, 0, sizeof(*(phy->lo_control))); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3852 | lo->tx_bias = 0xFF; |
Michael Buesch | f5eda47 | 2008-04-20 16:03:32 +0200 | [diff] [blame] | 3853 | INIT_LIST_HEAD(&lo->calib_list); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3854 | } |
| 3855 | phy->max_lb_gain = 0; |
| 3856 | phy->trsw_rx_gain = 0; |
| 3857 | phy->txpwr_offset = 0; |
| 3858 | |
| 3859 | /* NRSSI */ |
| 3860 | phy->nrssislope = 0; |
| 3861 | for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++) |
| 3862 | phy->nrssi[i] = -1000; |
| 3863 | for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++) |
| 3864 | phy->nrssi_lt[i] = i; |
| 3865 | |
| 3866 | phy->lofcal = 0xFFFF; |
| 3867 | phy->initval = 0xFFFF; |
| 3868 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3869 | phy->interfmode = B43_INTERFMODE_NONE; |
| 3870 | phy->channel = 0xFF; |
| 3871 | |
| 3872 | phy->hardware_power_control = !!modparam_hwpctl; |
Michael Buesch | 8ed7fc4 | 2007-12-09 22:34:59 +0100 | [diff] [blame] | 3873 | |
| 3874 | /* PHY TX errors counter. */ |
| 3875 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); |
| 3876 | |
| 3877 | /* OFDM-table address caching. */ |
| 3878 | phy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3879 | } |
| 3880 | |
| 3881 | static void setup_struct_wldev_for_init(struct b43_wldev *dev) |
| 3882 | { |
Michael Buesch | aa6c7ae | 2007-12-26 16:26:36 +0100 | [diff] [blame] | 3883 | dev->dfq_valid = 0; |
| 3884 | |
Michael Buesch | 6a724d6 | 2007-09-20 22:12:58 +0200 | [diff] [blame] | 3885 | /* Assume the radio is enabled. If it's not enabled, the state will |
| 3886 | * immediately get fixed on the first periodic work run. */ |
| 3887 | dev->radio_hw_enable = 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3888 | |
| 3889 | /* Stats */ |
| 3890 | memset(&dev->stats, 0, sizeof(dev->stats)); |
| 3891 | |
| 3892 | setup_struct_phy_for_init(dev, &dev->phy); |
| 3893 | |
| 3894 | /* IRQ related flags */ |
| 3895 | dev->irq_reason = 0; |
| 3896 | memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); |
| 3897 | dev->irq_savedstate = B43_IRQ_MASKTEMPLATE; |
| 3898 | |
| 3899 | dev->mac_suspended = 1; |
| 3900 | |
| 3901 | /* Noise calculation context */ |
| 3902 | memset(&dev->noisecalc, 0, sizeof(dev->noisecalc)); |
| 3903 | } |
| 3904 | |
| 3905 | static void b43_bluetooth_coext_enable(struct b43_wldev *dev) |
| 3906 | { |
| 3907 | struct ssb_sprom *sprom = &dev->dev->bus->sprom; |
Michael Buesch | a259d6a | 2008-04-18 21:06:37 +0200 | [diff] [blame] | 3908 | u64 hf; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3909 | |
Michael Buesch | 1855ba7 | 2008-04-18 20:51:41 +0200 | [diff] [blame] | 3910 | if (!modparam_btcoex) |
| 3911 | return; |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 3912 | if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST)) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3913 | return; |
| 3914 | if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode) |
| 3915 | return; |
| 3916 | |
| 3917 | hf = b43_hf_read(dev); |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 3918 | if (sprom->boardflags_lo & B43_BFL_BTCMOD) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3919 | hf |= B43_HF_BTCOEXALT; |
| 3920 | else |
| 3921 | hf |= B43_HF_BTCOEX; |
| 3922 | b43_hf_write(dev, hf); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3923 | } |
| 3924 | |
| 3925 | static void b43_bluetooth_coext_disable(struct b43_wldev *dev) |
Michael Buesch | 1855ba7 | 2008-04-18 20:51:41 +0200 | [diff] [blame] | 3926 | { |
| 3927 | if (!modparam_btcoex) |
| 3928 | return; |
| 3929 | //TODO |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 3930 | } |
| 3931 | |
| 3932 | static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) |
| 3933 | { |
| 3934 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
| 3935 | struct ssb_bus *bus = dev->dev->bus; |
| 3936 | u32 tmp; |
| 3937 | |
| 3938 | if (bus->pcicore.dev && |
| 3939 | bus->pcicore.dev->id.coreid == SSB_DEV_PCI && |
| 3940 | bus->pcicore.dev->id.revision <= 5) { |
| 3941 | /* IMCFGLO timeouts workaround. */ |
| 3942 | tmp = ssb_read32(dev->dev, SSB_IMCFGLO); |
| 3943 | tmp &= ~SSB_IMCFGLO_REQTO; |
| 3944 | tmp &= ~SSB_IMCFGLO_SERTO; |
| 3945 | switch (bus->bustype) { |
| 3946 | case SSB_BUSTYPE_PCI: |
| 3947 | case SSB_BUSTYPE_PCMCIA: |
| 3948 | tmp |= 0x32; |
| 3949 | break; |
| 3950 | case SSB_BUSTYPE_SSB: |
| 3951 | tmp |= 0x53; |
| 3952 | break; |
| 3953 | } |
| 3954 | ssb_write32(dev->dev, SSB_IMCFGLO, tmp); |
| 3955 | } |
| 3956 | #endif /* CONFIG_SSB_DRIVER_PCICORE */ |
| 3957 | } |
| 3958 | |
Michael Buesch | 74cfdba | 2007-10-28 16:19:44 +0100 | [diff] [blame] | 3959 | /* Write the short and long frame retry limit values. */ |
| 3960 | static void b43_set_retry_limits(struct b43_wldev *dev, |
| 3961 | unsigned int short_retry, |
| 3962 | unsigned int long_retry) |
| 3963 | { |
| 3964 | /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing |
| 3965 | * the chip-internal counter. */ |
| 3966 | short_retry = min(short_retry, (unsigned int)0xF); |
| 3967 | long_retry = min(long_retry, (unsigned int)0xF); |
| 3968 | |
| 3969 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, |
| 3970 | short_retry); |
| 3971 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, |
| 3972 | long_retry); |
| 3973 | } |
| 3974 | |
Michael Buesch | d59f720 | 2008-04-03 18:56:19 +0200 | [diff] [blame] | 3975 | static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle) |
| 3976 | { |
| 3977 | u16 pu_delay; |
| 3978 | |
| 3979 | /* The time value is in microseconds. */ |
| 3980 | if (dev->phy.type == B43_PHYTYPE_A) |
| 3981 | pu_delay = 3700; |
| 3982 | else |
| 3983 | pu_delay = 1050; |
Michael Buesch | 8cf6a31 | 2008-04-05 15:19:36 +0200 | [diff] [blame] | 3984 | if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS) || idle) |
Michael Buesch | d59f720 | 2008-04-03 18:56:19 +0200 | [diff] [blame] | 3985 | pu_delay = 500; |
| 3986 | if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8)) |
| 3987 | pu_delay = max(pu_delay, (u16)2400); |
| 3988 | |
| 3989 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay); |
| 3990 | } |
| 3991 | |
| 3992 | /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */ |
| 3993 | static void b43_set_pretbtt(struct b43_wldev *dev) |
| 3994 | { |
| 3995 | u16 pretbtt; |
| 3996 | |
| 3997 | /* The time value is in microseconds. */ |
Michael Buesch | 8cf6a31 | 2008-04-05 15:19:36 +0200 | [diff] [blame] | 3998 | if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS)) { |
Michael Buesch | d59f720 | 2008-04-03 18:56:19 +0200 | [diff] [blame] | 3999 | pretbtt = 2; |
| 4000 | } else { |
| 4001 | if (dev->phy.type == B43_PHYTYPE_A) |
| 4002 | pretbtt = 120; |
| 4003 | else |
| 4004 | pretbtt = 250; |
| 4005 | } |
| 4006 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt); |
| 4007 | b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt); |
| 4008 | } |
| 4009 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4010 | /* Shutdown a wireless core */ |
| 4011 | /* Locking: wl->mutex */ |
| 4012 | static void b43_wireless_core_exit(struct b43_wldev *dev) |
| 4013 | { |
| 4014 | struct b43_phy *phy = &dev->phy; |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 4015 | u32 macctl; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4016 | |
| 4017 | B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED); |
| 4018 | if (b43_status(dev) != B43_STAT_INITIALIZED) |
| 4019 | return; |
| 4020 | b43_set_status(dev, B43_STAT_UNINIT); |
| 4021 | |
Michael Buesch | 1f7d87b | 2008-01-22 20:23:34 +0100 | [diff] [blame] | 4022 | /* Stop the microcode PSM. */ |
| 4023 | macctl = b43_read32(dev, B43_MMIO_MACCTL); |
| 4024 | macctl &= ~B43_MACCTL_PSM_RUN; |
| 4025 | macctl |= B43_MACCTL_PSM_JMP0; |
| 4026 | b43_write32(dev, B43_MMIO_MACCTL, macctl); |
| 4027 | |
Rafael J. Wysocki | 3506e0c | 2008-02-04 22:30:15 -0800 | [diff] [blame] | 4028 | if (!dev->suspend_in_progress) { |
| 4029 | b43_leds_exit(dev); |
Rafael J. Wysocki | b844eba | 2008-03-23 20:28:24 +0100 | [diff] [blame] | 4030 | b43_rng_exit(dev->wl); |
Rafael J. Wysocki | 3506e0c | 2008-02-04 22:30:15 -0800 | [diff] [blame] | 4031 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4032 | b43_dma_free(dev); |
Michael Buesch | 5100d5a | 2008-03-29 21:01:16 +0100 | [diff] [blame] | 4033 | b43_pio_free(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4034 | b43_chip_exit(dev); |
Michael Buesch | 8e9f752 | 2007-09-27 21:35:34 +0200 | [diff] [blame] | 4035 | b43_radio_turn_off(dev, 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4036 | b43_switch_analog(dev, 0); |
| 4037 | if (phy->dyn_tssi_tbl) |
| 4038 | kfree(phy->tssi2dbm); |
| 4039 | kfree(phy->lo_control); |
| 4040 | phy->lo_control = NULL; |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 4041 | if (dev->wl->current_beacon) { |
| 4042 | dev_kfree_skb_any(dev->wl->current_beacon); |
| 4043 | dev->wl->current_beacon = NULL; |
| 4044 | } |
| 4045 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4046 | ssb_device_disable(dev->dev, 0); |
| 4047 | ssb_bus_may_powerdown(dev->dev->bus); |
| 4048 | } |
| 4049 | |
| 4050 | /* Initialize a wireless core */ |
| 4051 | static int b43_wireless_core_init(struct b43_wldev *dev) |
| 4052 | { |
| 4053 | struct b43_wl *wl = dev->wl; |
| 4054 | struct ssb_bus *bus = dev->dev->bus; |
| 4055 | struct ssb_sprom *sprom = &bus->sprom; |
| 4056 | struct b43_phy *phy = &dev->phy; |
| 4057 | int err; |
Michael Buesch | a259d6a | 2008-04-18 21:06:37 +0200 | [diff] [blame] | 4058 | u64 hf; |
| 4059 | u32 tmp; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4060 | |
| 4061 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); |
| 4062 | |
| 4063 | err = ssb_bus_powerup(bus, 0); |
| 4064 | if (err) |
| 4065 | goto out; |
| 4066 | if (!ssb_device_is_enabled(dev->dev)) { |
| 4067 | tmp = phy->gmode ? B43_TMSLOW_GMODE : 0; |
| 4068 | b43_wireless_core_reset(dev, tmp); |
| 4069 | } |
| 4070 | |
| 4071 | if ((phy->type == B43_PHYTYPE_B) || (phy->type == B43_PHYTYPE_G)) { |
| 4072 | phy->lo_control = |
| 4073 | kzalloc(sizeof(*(phy->lo_control)), GFP_KERNEL); |
| 4074 | if (!phy->lo_control) { |
| 4075 | err = -ENOMEM; |
| 4076 | goto err_busdown; |
| 4077 | } |
| 4078 | } |
| 4079 | setup_struct_wldev_for_init(dev); |
| 4080 | |
| 4081 | err = b43_phy_init_tssi2dbm_table(dev); |
| 4082 | if (err) |
| 4083 | goto err_kfree_lo_control; |
| 4084 | |
| 4085 | /* Enable IRQ routing to this device. */ |
| 4086 | ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev); |
| 4087 | |
| 4088 | b43_imcfglo_timeouts_workaround(dev); |
| 4089 | b43_bluetooth_coext_disable(dev); |
| 4090 | b43_phy_early_init(dev); |
| 4091 | err = b43_chip_init(dev); |
| 4092 | if (err) |
| 4093 | goto err_kfree_tssitbl; |
| 4094 | b43_shm_write16(dev, B43_SHM_SHARED, |
| 4095 | B43_SHM_SH_WLCOREREV, dev->dev->id.revision); |
| 4096 | hf = b43_hf_read(dev); |
| 4097 | if (phy->type == B43_PHYTYPE_G) { |
| 4098 | hf |= B43_HF_SYMW; |
| 4099 | if (phy->rev == 1) |
| 4100 | hf |= B43_HF_GDCW; |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 4101 | if (sprom->boardflags_lo & B43_BFL_PACTRL) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4102 | hf |= B43_HF_OFDMPABOOST; |
| 4103 | } else if (phy->type == B43_PHYTYPE_B) { |
| 4104 | hf |= B43_HF_SYMW; |
| 4105 | if (phy->rev >= 2 && phy->radio_ver == 0x2050) |
| 4106 | hf &= ~B43_HF_GDCW; |
| 4107 | } |
| 4108 | b43_hf_write(dev, hf); |
| 4109 | |
Michael Buesch | 74cfdba | 2007-10-28 16:19:44 +0100 | [diff] [blame] | 4110 | b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT, |
| 4111 | B43_DEFAULT_LONG_RETRY_LIMIT); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4112 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3); |
| 4113 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2); |
| 4114 | |
| 4115 | /* Disable sending probe responses from firmware. |
| 4116 | * Setting the MaxTime to one usec will always trigger |
| 4117 | * a timeout, so we never send any probe resp. |
| 4118 | * A timeout of zero is infinite. */ |
| 4119 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1); |
| 4120 | |
| 4121 | b43_rate_memory_init(dev); |
Michael Buesch | 5042c50 | 2008-04-05 15:05:00 +0200 | [diff] [blame] | 4122 | b43_set_phytxctl_defaults(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4123 | |
| 4124 | /* Minimum Contention Window */ |
| 4125 | if (phy->type == B43_PHYTYPE_B) { |
| 4126 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F); |
| 4127 | } else { |
| 4128 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF); |
| 4129 | } |
| 4130 | /* Maximum Contention Window */ |
| 4131 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF); |
| 4132 | |
Michael Buesch | 5100d5a | 2008-03-29 21:01:16 +0100 | [diff] [blame] | 4133 | if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || B43_FORCE_PIO) { |
| 4134 | dev->__using_pio_transfers = 1; |
| 4135 | err = b43_pio_init(dev); |
| 4136 | } else { |
| 4137 | dev->__using_pio_transfers = 0; |
| 4138 | err = b43_dma_init(dev); |
| 4139 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4140 | if (err) |
| 4141 | goto err_chip_exit; |
Michael Buesch | 03b2977 | 2007-12-26 14:41:30 +0100 | [diff] [blame] | 4142 | b43_qos_init(dev); |
Michael Buesch | d59f720 | 2008-04-03 18:56:19 +0200 | [diff] [blame] | 4143 | b43_set_synth_pu_delay(dev, 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4144 | b43_bluetooth_coext_enable(dev); |
| 4145 | |
| 4146 | ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */ |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4147 | b43_upload_card_macaddress(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4148 | b43_security_init(dev); |
Rafael J. Wysocki | 3506e0c | 2008-02-04 22:30:15 -0800 | [diff] [blame] | 4149 | if (!dev->suspend_in_progress) |
| 4150 | b43_rng_init(wl); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4151 | |
| 4152 | b43_set_status(dev, B43_STAT_INITIALIZED); |
| 4153 | |
Rafael J. Wysocki | 3506e0c | 2008-02-04 22:30:15 -0800 | [diff] [blame] | 4154 | if (!dev->suspend_in_progress) |
| 4155 | b43_leds_init(dev); |
Larry Finger | 1a8d122 | 2007-12-14 13:59:11 +0100 | [diff] [blame] | 4156 | out: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4157 | return err; |
| 4158 | |
| 4159 | err_chip_exit: |
| 4160 | b43_chip_exit(dev); |
| 4161 | err_kfree_tssitbl: |
| 4162 | if (phy->dyn_tssi_tbl) |
| 4163 | kfree(phy->tssi2dbm); |
| 4164 | err_kfree_lo_control: |
| 4165 | kfree(phy->lo_control); |
| 4166 | phy->lo_control = NULL; |
| 4167 | err_busdown: |
| 4168 | ssb_bus_may_powerdown(bus); |
| 4169 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); |
| 4170 | return err; |
| 4171 | } |
| 4172 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 4173 | static int b43_op_add_interface(struct ieee80211_hw *hw, |
| 4174 | struct ieee80211_if_init_conf *conf) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4175 | { |
| 4176 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 4177 | struct b43_wldev *dev; |
| 4178 | unsigned long flags; |
| 4179 | int err = -EOPNOTSUPP; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4180 | |
| 4181 | /* TODO: allow WDS/AP devices to coexist */ |
| 4182 | |
| 4183 | if (conf->type != IEEE80211_IF_TYPE_AP && |
Johannes Berg | 04dea13 | 2008-05-20 12:10:49 +0200 | [diff] [blame] | 4184 | conf->type != IEEE80211_IF_TYPE_MESH_POINT && |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4185 | conf->type != IEEE80211_IF_TYPE_STA && |
| 4186 | conf->type != IEEE80211_IF_TYPE_WDS && |
| 4187 | conf->type != IEEE80211_IF_TYPE_IBSS) |
| 4188 | return -EOPNOTSUPP; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4189 | |
| 4190 | mutex_lock(&wl->mutex); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4191 | if (wl->operating) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4192 | goto out_mutex_unlock; |
| 4193 | |
| 4194 | b43dbg(wl, "Adding Interface type %d\n", conf->type); |
| 4195 | |
| 4196 | dev = wl->current_dev; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4197 | wl->operating = 1; |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 4198 | wl->vif = conf->vif; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4199 | wl->if_type = conf->type; |
| 4200 | memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4201 | |
| 4202 | spin_lock_irqsave(&wl->irq_lock, flags); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4203 | b43_adjust_opmode(dev); |
Michael Buesch | d59f720 | 2008-04-03 18:56:19 +0200 | [diff] [blame] | 4204 | b43_set_pretbtt(dev); |
| 4205 | b43_set_synth_pu_delay(dev, 0); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4206 | b43_upload_card_macaddress(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4207 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 4208 | |
| 4209 | err = 0; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4210 | out_mutex_unlock: |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4211 | mutex_unlock(&wl->mutex); |
| 4212 | |
| 4213 | return err; |
| 4214 | } |
| 4215 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 4216 | static void b43_op_remove_interface(struct ieee80211_hw *hw, |
| 4217 | struct ieee80211_if_init_conf *conf) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4218 | { |
| 4219 | struct b43_wl *wl = hw_to_b43_wl(hw); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4220 | struct b43_wldev *dev = wl->current_dev; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4221 | unsigned long flags; |
| 4222 | |
| 4223 | b43dbg(wl, "Removing Interface type %d\n", conf->type); |
| 4224 | |
| 4225 | mutex_lock(&wl->mutex); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4226 | |
| 4227 | B43_WARN_ON(!wl->operating); |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 4228 | B43_WARN_ON(wl->vif != conf->vif); |
| 4229 | wl->vif = NULL; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4230 | |
| 4231 | wl->operating = 0; |
| 4232 | |
| 4233 | spin_lock_irqsave(&wl->irq_lock, flags); |
| 4234 | b43_adjust_opmode(dev); |
| 4235 | memset(wl->mac_addr, 0, ETH_ALEN); |
| 4236 | b43_upload_card_macaddress(dev); |
| 4237 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
| 4238 | |
| 4239 | mutex_unlock(&wl->mutex); |
| 4240 | } |
| 4241 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 4242 | static int b43_op_start(struct ieee80211_hw *hw) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4243 | { |
| 4244 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 4245 | struct b43_wldev *dev = wl->current_dev; |
| 4246 | int did_init = 0; |
WANG Cong | 923403b | 2007-10-16 14:29:38 -0700 | [diff] [blame] | 4247 | int err = 0; |
Michael Buesch | 1946a2c | 2008-01-23 12:02:35 +0100 | [diff] [blame] | 4248 | bool do_rfkill_exit = 0; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4249 | |
Michael Buesch | 7be1bb6 | 2008-01-23 21:10:56 +0100 | [diff] [blame] | 4250 | /* Kill all old instance specific information to make sure |
| 4251 | * the card won't use it in the short timeframe between start |
| 4252 | * and mac80211 reconfiguring it. */ |
| 4253 | memset(wl->bssid, 0, ETH_ALEN); |
| 4254 | memset(wl->mac_addr, 0, ETH_ALEN); |
| 4255 | wl->filter_flags = 0; |
| 4256 | wl->radiotap_enabled = 0; |
Michael Buesch | e6f5b93 | 2008-03-05 21:18:49 +0100 | [diff] [blame] | 4257 | b43_qos_clear(wl); |
Michael Buesch | 6b4bec01 | 2008-05-20 12:16:28 +0200 | [diff] [blame] | 4258 | wl->beacon0_uploaded = 0; |
| 4259 | wl->beacon1_uploaded = 0; |
| 4260 | wl->beacon_templates_virgin = 1; |
Michael Buesch | 7be1bb6 | 2008-01-23 21:10:56 +0100 | [diff] [blame] | 4261 | |
Larry Finger | 1a8d122 | 2007-12-14 13:59:11 +0100 | [diff] [blame] | 4262 | /* First register RFkill. |
| 4263 | * LEDs that are registered later depend on it. */ |
| 4264 | b43_rfkill_init(dev); |
| 4265 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4266 | mutex_lock(&wl->mutex); |
| 4267 | |
| 4268 | if (b43_status(dev) < B43_STAT_INITIALIZED) { |
| 4269 | err = b43_wireless_core_init(dev); |
Michael Buesch | 1946a2c | 2008-01-23 12:02:35 +0100 | [diff] [blame] | 4270 | if (err) { |
| 4271 | do_rfkill_exit = 1; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4272 | goto out_mutex_unlock; |
Michael Buesch | 1946a2c | 2008-01-23 12:02:35 +0100 | [diff] [blame] | 4273 | } |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4274 | did_init = 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4275 | } |
| 4276 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4277 | if (b43_status(dev) < B43_STAT_STARTED) { |
| 4278 | err = b43_wireless_core_start(dev); |
| 4279 | if (err) { |
| 4280 | if (did_init) |
| 4281 | b43_wireless_core_exit(dev); |
Michael Buesch | 1946a2c | 2008-01-23 12:02:35 +0100 | [diff] [blame] | 4282 | do_rfkill_exit = 1; |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4283 | goto out_mutex_unlock; |
| 4284 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4285 | } |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4286 | |
| 4287 | out_mutex_unlock: |
| 4288 | mutex_unlock(&wl->mutex); |
| 4289 | |
Michael Buesch | 1946a2c | 2008-01-23 12:02:35 +0100 | [diff] [blame] | 4290 | if (do_rfkill_exit) |
| 4291 | b43_rfkill_exit(dev); |
| 4292 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4293 | return err; |
| 4294 | } |
| 4295 | |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 4296 | static void b43_op_stop(struct ieee80211_hw *hw) |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4297 | { |
| 4298 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 4299 | struct b43_wldev *dev = wl->current_dev; |
| 4300 | |
Larry Finger | 1a8d122 | 2007-12-14 13:59:11 +0100 | [diff] [blame] | 4301 | b43_rfkill_exit(dev); |
Michael Buesch | e6f5b93 | 2008-03-05 21:18:49 +0100 | [diff] [blame] | 4302 | cancel_work_sync(&(wl->qos_update_work)); |
Michael Buesch | a82d992 | 2008-04-04 21:40:06 +0200 | [diff] [blame] | 4303 | cancel_work_sync(&(wl->beacon_update_trigger)); |
Larry Finger | 1a8d122 | 2007-12-14 13:59:11 +0100 | [diff] [blame] | 4304 | |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 4305 | mutex_lock(&wl->mutex); |
| 4306 | if (b43_status(dev) >= B43_STAT_STARTED) |
| 4307 | b43_wireless_core_stop(dev); |
| 4308 | b43_wireless_core_exit(dev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4309 | mutex_unlock(&wl->mutex); |
| 4310 | } |
| 4311 | |
Michael Buesch | 74cfdba | 2007-10-28 16:19:44 +0100 | [diff] [blame] | 4312 | static int b43_op_set_retry_limit(struct ieee80211_hw *hw, |
| 4313 | u32 short_retry_limit, u32 long_retry_limit) |
| 4314 | { |
| 4315 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 4316 | struct b43_wldev *dev; |
| 4317 | int err = 0; |
| 4318 | |
| 4319 | mutex_lock(&wl->mutex); |
| 4320 | dev = wl->current_dev; |
| 4321 | if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) { |
| 4322 | err = -ENODEV; |
| 4323 | goto out_unlock; |
| 4324 | } |
| 4325 | b43_set_retry_limits(dev, short_retry_limit, long_retry_limit); |
| 4326 | out_unlock: |
| 4327 | mutex_unlock(&wl->mutex); |
| 4328 | |
| 4329 | return err; |
| 4330 | } |
| 4331 | |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 4332 | static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, int aid, int set) |
| 4333 | { |
| 4334 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 4335 | struct sk_buff *beacon; |
Michael Buesch | d4df6f1 | 2007-12-26 18:04:14 +0100 | [diff] [blame] | 4336 | unsigned long flags; |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 4337 | |
| 4338 | /* We could modify the existing beacon and set the aid bit in |
| 4339 | * the TIM field, but that would probably require resizing and |
| 4340 | * moving of data within the beacon template. |
| 4341 | * Simply request a new beacon and let mac80211 do the hard work. */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 4342 | beacon = ieee80211_beacon_get(hw, wl->vif); |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 4343 | if (unlikely(!beacon)) |
| 4344 | return -ENOMEM; |
Michael Buesch | d4df6f1 | 2007-12-26 18:04:14 +0100 | [diff] [blame] | 4345 | spin_lock_irqsave(&wl->irq_lock, flags); |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 4346 | b43_update_templates(wl, beacon); |
Michael Buesch | d4df6f1 | 2007-12-26 18:04:14 +0100 | [diff] [blame] | 4347 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 4348 | |
| 4349 | return 0; |
| 4350 | } |
| 4351 | |
| 4352 | static int b43_op_ibss_beacon_update(struct ieee80211_hw *hw, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 4353 | struct sk_buff *beacon) |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 4354 | { |
| 4355 | struct b43_wl *wl = hw_to_b43_wl(hw); |
Michael Buesch | d4df6f1 | 2007-12-26 18:04:14 +0100 | [diff] [blame] | 4356 | unsigned long flags; |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 4357 | |
Michael Buesch | d4df6f1 | 2007-12-26 18:04:14 +0100 | [diff] [blame] | 4358 | spin_lock_irqsave(&wl->irq_lock, flags); |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 4359 | b43_update_templates(wl, beacon); |
Michael Buesch | d4df6f1 | 2007-12-26 18:04:14 +0100 | [diff] [blame] | 4360 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 4361 | |
| 4362 | return 0; |
| 4363 | } |
| 4364 | |
Johannes Berg | 38968d0 | 2008-02-25 16:27:50 +0100 | [diff] [blame] | 4365 | static void b43_op_sta_notify(struct ieee80211_hw *hw, |
| 4366 | struct ieee80211_vif *vif, |
| 4367 | enum sta_notify_cmd notify_cmd, |
| 4368 | const u8 *addr) |
| 4369 | { |
| 4370 | struct b43_wl *wl = hw_to_b43_wl(hw); |
| 4371 | |
| 4372 | B43_WARN_ON(!vif || wl->vif != vif); |
| 4373 | } |
| 4374 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4375 | static const struct ieee80211_ops b43_hw_ops = { |
Michael Buesch | 40faacc | 2007-10-28 16:29:32 +0100 | [diff] [blame] | 4376 | .tx = b43_op_tx, |
| 4377 | .conf_tx = b43_op_conf_tx, |
| 4378 | .add_interface = b43_op_add_interface, |
| 4379 | .remove_interface = b43_op_remove_interface, |
| 4380 | .config = b43_op_config, |
| 4381 | .config_interface = b43_op_config_interface, |
| 4382 | .configure_filter = b43_op_configure_filter, |
| 4383 | .set_key = b43_op_set_key, |
| 4384 | .get_stats = b43_op_get_stats, |
| 4385 | .get_tx_stats = b43_op_get_tx_stats, |
| 4386 | .start = b43_op_start, |
| 4387 | .stop = b43_op_stop, |
Michael Buesch | 74cfdba | 2007-10-28 16:19:44 +0100 | [diff] [blame] | 4388 | .set_retry_limit = b43_op_set_retry_limit, |
Michael Buesch | e66fee6 | 2007-12-26 17:47:10 +0100 | [diff] [blame] | 4389 | .set_tim = b43_op_beacon_set_tim, |
| 4390 | .beacon_update = b43_op_ibss_beacon_update, |
Johannes Berg | 38968d0 | 2008-02-25 16:27:50 +0100 | [diff] [blame] | 4391 | .sta_notify = b43_op_sta_notify, |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4392 | }; |
| 4393 | |
| 4394 | /* Hard-reset the chip. Do not call this directly. |
| 4395 | * Use b43_controller_restart() |
| 4396 | */ |
| 4397 | static void b43_chip_reset(struct work_struct *work) |
| 4398 | { |
| 4399 | struct b43_wldev *dev = |
| 4400 | container_of(work, struct b43_wldev, restart_work); |
| 4401 | struct b43_wl *wl = dev->wl; |
| 4402 | int err = 0; |
| 4403 | int prev_status; |
| 4404 | |
| 4405 | mutex_lock(&wl->mutex); |
| 4406 | |
| 4407 | prev_status = b43_status(dev); |
| 4408 | /* Bring the device down... */ |
| 4409 | if (prev_status >= B43_STAT_STARTED) |
| 4410 | b43_wireless_core_stop(dev); |
| 4411 | if (prev_status >= B43_STAT_INITIALIZED) |
| 4412 | b43_wireless_core_exit(dev); |
| 4413 | |
| 4414 | /* ...and up again. */ |
| 4415 | if (prev_status >= B43_STAT_INITIALIZED) { |
| 4416 | err = b43_wireless_core_init(dev); |
| 4417 | if (err) |
| 4418 | goto out; |
| 4419 | } |
| 4420 | if (prev_status >= B43_STAT_STARTED) { |
| 4421 | err = b43_wireless_core_start(dev); |
| 4422 | if (err) { |
| 4423 | b43_wireless_core_exit(dev); |
| 4424 | goto out; |
| 4425 | } |
| 4426 | } |
Michael Buesch | 3bf0a32 | 2008-05-22 16:32:16 +0200 | [diff] [blame] | 4427 | out: |
| 4428 | if (err) |
| 4429 | wl->current_dev = NULL; /* Failed to init the dev. */ |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4430 | mutex_unlock(&wl->mutex); |
| 4431 | if (err) |
| 4432 | b43err(wl, "Controller restart FAILED\n"); |
| 4433 | else |
| 4434 | b43info(wl, "Controller restarted\n"); |
| 4435 | } |
| 4436 | |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 4437 | static int b43_setup_bands(struct b43_wldev *dev, |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4438 | bool have_2ghz_phy, bool have_5ghz_phy) |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4439 | { |
| 4440 | struct ieee80211_hw *hw = dev->wl->hw; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4441 | |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 4442 | if (have_2ghz_phy) |
| 4443 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz; |
| 4444 | if (dev->phy.type == B43_PHYTYPE_N) { |
| 4445 | if (have_5ghz_phy) |
| 4446 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy; |
| 4447 | } else { |
| 4448 | if (have_5ghz_phy) |
| 4449 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy; |
| 4450 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4451 | |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 4452 | dev->phy.supports_2ghz = have_2ghz_phy; |
| 4453 | dev->phy.supports_5ghz = have_5ghz_phy; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4454 | |
| 4455 | return 0; |
| 4456 | } |
| 4457 | |
| 4458 | static void b43_wireless_core_detach(struct b43_wldev *dev) |
| 4459 | { |
| 4460 | /* We release firmware that late to not be required to re-request |
| 4461 | * is all the time when we reinit the core. */ |
| 4462 | b43_release_firmware(dev); |
| 4463 | } |
| 4464 | |
| 4465 | static int b43_wireless_core_attach(struct b43_wldev *dev) |
| 4466 | { |
| 4467 | struct b43_wl *wl = dev->wl; |
| 4468 | struct ssb_bus *bus = dev->dev->bus; |
| 4469 | struct pci_dev *pdev = bus->host_pci; |
| 4470 | int err; |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4471 | bool have_2ghz_phy = 0, have_5ghz_phy = 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4472 | u32 tmp; |
| 4473 | |
| 4474 | /* Do NOT do any device initialization here. |
| 4475 | * Do it in wireless_core_init() instead. |
| 4476 | * This function is for gathering basic information about the HW, only. |
| 4477 | * Also some structs may be set up here. But most likely you want to have |
| 4478 | * that in core_init(), too. |
| 4479 | */ |
| 4480 | |
| 4481 | err = ssb_bus_powerup(bus, 0); |
| 4482 | if (err) { |
| 4483 | b43err(wl, "Bus powerup failed\n"); |
| 4484 | goto out; |
| 4485 | } |
| 4486 | /* Get the PHY type. */ |
| 4487 | if (dev->dev->id.revision >= 5) { |
| 4488 | u32 tmshigh; |
| 4489 | |
| 4490 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4491 | have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY); |
| 4492 | have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4493 | } else |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4494 | B43_WARN_ON(1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4495 | |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4496 | dev->phy.gmode = have_2ghz_phy; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4497 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
| 4498 | b43_wireless_core_reset(dev, tmp); |
| 4499 | |
| 4500 | err = b43_phy_versioning(dev); |
| 4501 | if (err) |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 4502 | goto err_powerdown; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4503 | /* Check if this device supports multiband. */ |
| 4504 | if (!pdev || |
| 4505 | (pdev->device != 0x4312 && |
| 4506 | pdev->device != 0x4319 && pdev->device != 0x4324)) { |
| 4507 | /* No multiband support. */ |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4508 | have_2ghz_phy = 0; |
| 4509 | have_5ghz_phy = 0; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4510 | switch (dev->phy.type) { |
| 4511 | case B43_PHYTYPE_A: |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4512 | have_5ghz_phy = 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4513 | break; |
| 4514 | case B43_PHYTYPE_G: |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4515 | case B43_PHYTYPE_N: |
| 4516 | have_2ghz_phy = 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4517 | break; |
| 4518 | default: |
| 4519 | B43_WARN_ON(1); |
| 4520 | } |
| 4521 | } |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4522 | if (dev->phy.type == B43_PHYTYPE_A) { |
| 4523 | /* FIXME */ |
| 4524 | b43err(wl, "IEEE 802.11a devices are unsupported\n"); |
| 4525 | err = -EOPNOTSUPP; |
| 4526 | goto err_powerdown; |
| 4527 | } |
Michael Buesch | 2e35af1 | 2008-04-27 19:06:18 +0200 | [diff] [blame] | 4528 | if (1 /* disable A-PHY */) { |
| 4529 | /* FIXME: For now we disable the A-PHY on multi-PHY devices. */ |
| 4530 | if (dev->phy.type != B43_PHYTYPE_N) { |
| 4531 | have_2ghz_phy = 1; |
| 4532 | have_5ghz_phy = 0; |
| 4533 | } |
| 4534 | } |
| 4535 | |
Michael Buesch | 96c755a | 2008-01-06 00:09:46 +0100 | [diff] [blame] | 4536 | dev->phy.gmode = have_2ghz_phy; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4537 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
| 4538 | b43_wireless_core_reset(dev, tmp); |
| 4539 | |
| 4540 | err = b43_validate_chipaccess(dev); |
| 4541 | if (err) |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 4542 | goto err_powerdown; |
Michael Buesch | bb1eeff | 2008-02-09 12:08:58 +0100 | [diff] [blame] | 4543 | err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4544 | if (err) |
Michael Buesch | 21954c3 | 2007-09-27 15:31:40 +0200 | [diff] [blame] | 4545 | goto err_powerdown; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4546 | |
| 4547 | /* Now set some default "current_dev" */ |
| 4548 | if (!wl->current_dev) |
| 4549 | wl->current_dev = dev; |
| 4550 | INIT_WORK(&dev->restart_work, b43_chip_reset); |
| 4551 | |
Michael Buesch | 8e9f752 | 2007-09-27 21:35:34 +0200 | [diff] [blame] | 4552 | b43_radio_turn_off(dev, 1); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4553 | b43_switch_analog(dev, 0); |
| 4554 | ssb_device_disable(dev->dev, 0); |
| 4555 | ssb_bus_may_powerdown(bus); |
| 4556 | |
| 4557 | out: |
| 4558 | return err; |
| 4559 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4560 | err_powerdown: |
| 4561 | ssb_bus_may_powerdown(bus); |
| 4562 | return err; |
| 4563 | } |
| 4564 | |
| 4565 | static void b43_one_core_detach(struct ssb_device *dev) |
| 4566 | { |
| 4567 | struct b43_wldev *wldev; |
| 4568 | struct b43_wl *wl; |
| 4569 | |
Michael Buesch | 3bf0a32 | 2008-05-22 16:32:16 +0200 | [diff] [blame] | 4570 | /* Do not cancel ieee80211-workqueue based work here. |
| 4571 | * See comment in b43_remove(). */ |
| 4572 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4573 | wldev = ssb_get_drvdata(dev); |
| 4574 | wl = wldev->wl; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4575 | b43_debugfs_remove_device(wldev); |
| 4576 | b43_wireless_core_detach(wldev); |
| 4577 | list_del(&wldev->list); |
| 4578 | wl->nr_devs--; |
| 4579 | ssb_set_drvdata(dev, NULL); |
| 4580 | kfree(wldev); |
| 4581 | } |
| 4582 | |
| 4583 | static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl) |
| 4584 | { |
| 4585 | struct b43_wldev *wldev; |
| 4586 | struct pci_dev *pdev; |
| 4587 | int err = -ENOMEM; |
| 4588 | |
| 4589 | if (!list_empty(&wl->devlist)) { |
| 4590 | /* We are not the first core on this chip. */ |
| 4591 | pdev = dev->bus->host_pci; |
| 4592 | /* Only special chips support more than one wireless |
| 4593 | * core, although some of the other chips have more than |
| 4594 | * one wireless core as well. Check for this and |
| 4595 | * bail out early. |
| 4596 | */ |
| 4597 | if (!pdev || |
| 4598 | ((pdev->device != 0x4321) && |
| 4599 | (pdev->device != 0x4313) && (pdev->device != 0x431A))) { |
| 4600 | b43dbg(wl, "Ignoring unconnected 802.11 core\n"); |
| 4601 | return -ENODEV; |
| 4602 | } |
| 4603 | } |
| 4604 | |
| 4605 | wldev = kzalloc(sizeof(*wldev), GFP_KERNEL); |
| 4606 | if (!wldev) |
| 4607 | goto out; |
| 4608 | |
| 4609 | wldev->dev = dev; |
| 4610 | wldev->wl = wl; |
| 4611 | b43_set_status(wldev, B43_STAT_UNINIT); |
| 4612 | wldev->bad_frames_preempt = modparam_bad_frames_preempt; |
| 4613 | tasklet_init(&wldev->isr_tasklet, |
| 4614 | (void (*)(unsigned long))b43_interrupt_tasklet, |
| 4615 | (unsigned long)wldev); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4616 | INIT_LIST_HEAD(&wldev->list); |
| 4617 | |
| 4618 | err = b43_wireless_core_attach(wldev); |
| 4619 | if (err) |
| 4620 | goto err_kfree_wldev; |
| 4621 | |
| 4622 | list_add(&wldev->list, &wl->devlist); |
| 4623 | wl->nr_devs++; |
| 4624 | ssb_set_drvdata(dev, wldev); |
| 4625 | b43_debugfs_add_device(wldev); |
| 4626 | |
| 4627 | out: |
| 4628 | return err; |
| 4629 | |
| 4630 | err_kfree_wldev: |
| 4631 | kfree(wldev); |
| 4632 | return err; |
| 4633 | } |
| 4634 | |
Michael Buesch | 9fc3845 | 2008-04-19 16:53:00 +0200 | [diff] [blame] | 4635 | #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \ |
| 4636 | (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \ |
| 4637 | (pdev->device == _device) && \ |
| 4638 | (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \ |
| 4639 | (pdev->subsystem_device == _subdevice) ) |
| 4640 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4641 | static void b43_sprom_fixup(struct ssb_bus *bus) |
| 4642 | { |
Michael Buesch | 1855ba7 | 2008-04-18 20:51:41 +0200 | [diff] [blame] | 4643 | struct pci_dev *pdev; |
| 4644 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4645 | /* boardflags workarounds */ |
| 4646 | if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL && |
| 4647 | bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74) |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 4648 | bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4649 | if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE && |
| 4650 | bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40) |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 4651 | bus->sprom.boardflags_lo |= B43_BFL_PACTRL; |
Michael Buesch | 1855ba7 | 2008-04-18 20:51:41 +0200 | [diff] [blame] | 4652 | if (bus->bustype == SSB_BUSTYPE_PCI) { |
| 4653 | pdev = bus->host_pci; |
Michael Buesch | 9fc3845 | 2008-04-19 16:53:00 +0200 | [diff] [blame] | 4654 | if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) || |
| 4655 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) || |
| 4656 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013)) |
Michael Buesch | 1855ba7 | 2008-04-18 20:51:41 +0200 | [diff] [blame] | 4657 | bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST; |
| 4658 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4659 | } |
| 4660 | |
| 4661 | static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl) |
| 4662 | { |
| 4663 | struct ieee80211_hw *hw = wl->hw; |
| 4664 | |
| 4665 | ssb_set_devtypedata(dev, NULL); |
| 4666 | ieee80211_free_hw(hw); |
| 4667 | } |
| 4668 | |
| 4669 | static int b43_wireless_init(struct ssb_device *dev) |
| 4670 | { |
| 4671 | struct ssb_sprom *sprom = &dev->bus->sprom; |
| 4672 | struct ieee80211_hw *hw; |
| 4673 | struct b43_wl *wl; |
| 4674 | int err = -ENOMEM; |
| 4675 | |
| 4676 | b43_sprom_fixup(dev->bus); |
| 4677 | |
| 4678 | hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops); |
| 4679 | if (!hw) { |
| 4680 | b43err(NULL, "Could not allocate ieee80211 device\n"); |
| 4681 | goto out; |
| 4682 | } |
| 4683 | |
| 4684 | /* fill hw info */ |
Johannes Berg | d8be11e | 2007-11-24 15:06:33 +0100 | [diff] [blame] | 4685 | hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE | |
Bruno Randolf | 566bfe5 | 2008-05-08 19:15:40 +0200 | [diff] [blame] | 4686 | IEEE80211_HW_RX_INCLUDES_FCS | |
| 4687 | IEEE80211_HW_SIGNAL_DBM | |
| 4688 | IEEE80211_HW_NOISE_DBM; |
| 4689 | |
Michael Buesch | e6f5b93 | 2008-03-05 21:18:49 +0100 | [diff] [blame] | 4690 | hw->queues = b43_modparam_qos ? 4 : 1; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4691 | SET_IEEE80211_DEV(hw, dev->dev); |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 4692 | if (is_valid_ether_addr(sprom->et1mac)) |
| 4693 | SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4694 | else |
Larry Finger | 95de284 | 2007-11-09 16:57:18 -0600 | [diff] [blame] | 4695 | SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4696 | |
| 4697 | /* Get and initialize struct b43_wl */ |
| 4698 | wl = hw_to_b43_wl(hw); |
| 4699 | memset(wl, 0, sizeof(*wl)); |
| 4700 | wl->hw = hw; |
| 4701 | spin_lock_init(&wl->irq_lock); |
Michael Buesch | 21a75d7 | 2008-04-25 19:29:08 +0200 | [diff] [blame] | 4702 | rwlock_init(&wl->tx_lock); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4703 | spin_lock_init(&wl->leds_lock); |
Michael Buesch | 280d0e1 | 2007-12-26 18:26:17 +0100 | [diff] [blame] | 4704 | spin_lock_init(&wl->shm_lock); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4705 | mutex_init(&wl->mutex); |
| 4706 | INIT_LIST_HEAD(&wl->devlist); |
Michael Buesch | e6f5b93 | 2008-03-05 21:18:49 +0100 | [diff] [blame] | 4707 | INIT_WORK(&wl->qos_update_work, b43_qos_update_work); |
Michael Buesch | a82d992 | 2008-04-04 21:40:06 +0200 | [diff] [blame] | 4708 | INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4709 | |
| 4710 | ssb_set_devtypedata(dev, wl); |
| 4711 | b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id); |
| 4712 | err = 0; |
| 4713 | out: |
| 4714 | return err; |
| 4715 | } |
| 4716 | |
| 4717 | static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id) |
| 4718 | { |
| 4719 | struct b43_wl *wl; |
| 4720 | int err; |
| 4721 | int first = 0; |
| 4722 | |
| 4723 | wl = ssb_get_devtypedata(dev); |
| 4724 | if (!wl) { |
| 4725 | /* Probing the first core. Must setup common struct b43_wl */ |
| 4726 | first = 1; |
| 4727 | err = b43_wireless_init(dev); |
| 4728 | if (err) |
| 4729 | goto out; |
| 4730 | wl = ssb_get_devtypedata(dev); |
| 4731 | B43_WARN_ON(!wl); |
| 4732 | } |
| 4733 | err = b43_one_core_attach(dev, wl); |
| 4734 | if (err) |
| 4735 | goto err_wireless_exit; |
| 4736 | |
| 4737 | if (first) { |
| 4738 | err = ieee80211_register_hw(wl->hw); |
| 4739 | if (err) |
| 4740 | goto err_one_core_detach; |
| 4741 | } |
| 4742 | |
| 4743 | out: |
| 4744 | return err; |
| 4745 | |
| 4746 | err_one_core_detach: |
| 4747 | b43_one_core_detach(dev); |
| 4748 | err_wireless_exit: |
| 4749 | if (first) |
| 4750 | b43_wireless_exit(dev, wl); |
| 4751 | return err; |
| 4752 | } |
| 4753 | |
| 4754 | static void b43_remove(struct ssb_device *dev) |
| 4755 | { |
| 4756 | struct b43_wl *wl = ssb_get_devtypedata(dev); |
| 4757 | struct b43_wldev *wldev = ssb_get_drvdata(dev); |
| 4758 | |
Michael Buesch | 3bf0a32 | 2008-05-22 16:32:16 +0200 | [diff] [blame] | 4759 | /* We must cancel any work here before unregistering from ieee80211, |
| 4760 | * as the ieee80211 unreg will destroy the workqueue. */ |
| 4761 | cancel_work_sync(&wldev->restart_work); |
| 4762 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4763 | B43_WARN_ON(!wl); |
| 4764 | if (wl->current_dev == wldev) |
| 4765 | ieee80211_unregister_hw(wl->hw); |
| 4766 | |
| 4767 | b43_one_core_detach(dev); |
| 4768 | |
| 4769 | if (list_empty(&wl->devlist)) { |
| 4770 | /* Last core on the chip unregistered. |
| 4771 | * We can destroy common struct b43_wl. |
| 4772 | */ |
| 4773 | b43_wireless_exit(dev, wl); |
| 4774 | } |
| 4775 | } |
| 4776 | |
| 4777 | /* Perform a hardware reset. This can be called from any context. */ |
| 4778 | void b43_controller_restart(struct b43_wldev *dev, const char *reason) |
| 4779 | { |
| 4780 | /* Must avoid requeueing, if we are in shutdown. */ |
| 4781 | if (b43_status(dev) < B43_STAT_INITIALIZED) |
| 4782 | return; |
| 4783 | b43info(dev->wl, "Controller RESET (%s) ...\n", reason); |
| 4784 | queue_work(dev->wl->hw->workqueue, &dev->restart_work); |
| 4785 | } |
| 4786 | |
| 4787 | #ifdef CONFIG_PM |
| 4788 | |
| 4789 | static int b43_suspend(struct ssb_device *dev, pm_message_t state) |
| 4790 | { |
| 4791 | struct b43_wldev *wldev = ssb_get_drvdata(dev); |
| 4792 | struct b43_wl *wl = wldev->wl; |
| 4793 | |
| 4794 | b43dbg(wl, "Suspending...\n"); |
| 4795 | |
| 4796 | mutex_lock(&wl->mutex); |
Rafael J. Wysocki | 3506e0c | 2008-02-04 22:30:15 -0800 | [diff] [blame] | 4797 | wldev->suspend_in_progress = true; |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4798 | wldev->suspend_init_status = b43_status(wldev); |
| 4799 | if (wldev->suspend_init_status >= B43_STAT_STARTED) |
| 4800 | b43_wireless_core_stop(wldev); |
| 4801 | if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) |
| 4802 | b43_wireless_core_exit(wldev); |
| 4803 | mutex_unlock(&wl->mutex); |
| 4804 | |
| 4805 | b43dbg(wl, "Device suspended.\n"); |
| 4806 | |
| 4807 | return 0; |
| 4808 | } |
| 4809 | |
| 4810 | static int b43_resume(struct ssb_device *dev) |
| 4811 | { |
| 4812 | struct b43_wldev *wldev = ssb_get_drvdata(dev); |
| 4813 | struct b43_wl *wl = wldev->wl; |
| 4814 | int err = 0; |
| 4815 | |
| 4816 | b43dbg(wl, "Resuming...\n"); |
| 4817 | |
| 4818 | mutex_lock(&wl->mutex); |
| 4819 | if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) { |
| 4820 | err = b43_wireless_core_init(wldev); |
| 4821 | if (err) { |
| 4822 | b43err(wl, "Resume failed at core init\n"); |
| 4823 | goto out; |
| 4824 | } |
| 4825 | } |
| 4826 | if (wldev->suspend_init_status >= B43_STAT_STARTED) { |
| 4827 | err = b43_wireless_core_start(wldev); |
| 4828 | if (err) { |
Rafael J. Wysocki | 3506e0c | 2008-02-04 22:30:15 -0800 | [diff] [blame] | 4829 | b43_leds_exit(wldev); |
Rafael J. Wysocki | b844eba | 2008-03-23 20:28:24 +0100 | [diff] [blame] | 4830 | b43_rng_exit(wldev->wl); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4831 | b43_wireless_core_exit(wldev); |
| 4832 | b43err(wl, "Resume failed at core start\n"); |
| 4833 | goto out; |
| 4834 | } |
| 4835 | } |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4836 | b43dbg(wl, "Device resumed.\n"); |
Rafael J. Wysocki | 3506e0c | 2008-02-04 22:30:15 -0800 | [diff] [blame] | 4837 | out: |
| 4838 | wldev->suspend_in_progress = false; |
| 4839 | mutex_unlock(&wl->mutex); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4840 | return err; |
| 4841 | } |
| 4842 | |
| 4843 | #else /* CONFIG_PM */ |
| 4844 | # define b43_suspend NULL |
| 4845 | # define b43_resume NULL |
| 4846 | #endif /* CONFIG_PM */ |
| 4847 | |
| 4848 | static struct ssb_driver b43_ssb_driver = { |
| 4849 | .name = KBUILD_MODNAME, |
| 4850 | .id_table = b43_ssb_tbl, |
| 4851 | .probe = b43_probe, |
| 4852 | .remove = b43_remove, |
| 4853 | .suspend = b43_suspend, |
| 4854 | .resume = b43_resume, |
| 4855 | }; |
| 4856 | |
Michael Buesch | 26bc783 | 2008-02-09 00:18:35 +0100 | [diff] [blame] | 4857 | static void b43_print_driverinfo(void) |
| 4858 | { |
| 4859 | const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "", |
| 4860 | *feat_leds = "", *feat_rfkill = ""; |
| 4861 | |
| 4862 | #ifdef CONFIG_B43_PCI_AUTOSELECT |
| 4863 | feat_pci = "P"; |
| 4864 | #endif |
| 4865 | #ifdef CONFIG_B43_PCMCIA |
| 4866 | feat_pcmcia = "M"; |
| 4867 | #endif |
| 4868 | #ifdef CONFIG_B43_NPHY |
| 4869 | feat_nphy = "N"; |
| 4870 | #endif |
| 4871 | #ifdef CONFIG_B43_LEDS |
| 4872 | feat_leds = "L"; |
| 4873 | #endif |
| 4874 | #ifdef CONFIG_B43_RFKILL |
| 4875 | feat_rfkill = "R"; |
| 4876 | #endif |
| 4877 | printk(KERN_INFO "Broadcom 43xx driver loaded " |
| 4878 | "[ Features: %s%s%s%s%s, Firmware-ID: " |
| 4879 | B43_SUPPORTED_FIRMWARE_ID " ]\n", |
| 4880 | feat_pci, feat_pcmcia, feat_nphy, |
| 4881 | feat_leds, feat_rfkill); |
| 4882 | } |
| 4883 | |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4884 | static int __init b43_init(void) |
| 4885 | { |
| 4886 | int err; |
| 4887 | |
| 4888 | b43_debugfs_init(); |
| 4889 | err = b43_pcmcia_init(); |
| 4890 | if (err) |
| 4891 | goto err_dfs_exit; |
| 4892 | err = ssb_driver_register(&b43_ssb_driver); |
| 4893 | if (err) |
| 4894 | goto err_pcmcia_exit; |
Michael Buesch | 26bc783 | 2008-02-09 00:18:35 +0100 | [diff] [blame] | 4895 | b43_print_driverinfo(); |
Michael Buesch | e4d6b79 | 2007-09-18 15:39:42 -0400 | [diff] [blame] | 4896 | |
| 4897 | return err; |
| 4898 | |
| 4899 | err_pcmcia_exit: |
| 4900 | b43_pcmcia_exit(); |
| 4901 | err_dfs_exit: |
| 4902 | b43_debugfs_exit(); |
| 4903 | return err; |
| 4904 | } |
| 4905 | |
| 4906 | static void __exit b43_exit(void) |
| 4907 | { |
| 4908 | ssb_driver_unregister(&b43_ssb_driver); |
| 4909 | b43_pcmcia_exit(); |
| 4910 | b43_debugfs_exit(); |
| 4911 | } |
| 4912 | |
| 4913 | module_init(b43_init) |
| 4914 | module_exit(b43_exit) |