Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1 | /* |
Sujith | cee075a | 2009-03-13 09:07:23 +0530 | [diff] [blame] | 2 | * Copyright (c) 2008-2009 Atheros Communications Inc. |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 | */ |
| 16 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 17 | #include <linux/nl80211.h> |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 18 | #include "ath9k.h" |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 19 | #include "btcoex.h" |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 20 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 21 | static void ath_update_txpow(struct ath_softc *sc) |
| 22 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 23 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 24 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 25 | if (sc->curtxpow != sc->config.txpowlimit) { |
Felix Fietkau | de40f31 | 2010-10-20 03:08:53 +0200 | [diff] [blame] | 26 | ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit, false); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 27 | /* read back in case value is clamped */ |
Felix Fietkau | 9cc3271 | 2010-06-12 17:22:29 +0200 | [diff] [blame] | 28 | sc->curtxpow = ath9k_hw_regulatory(ah)->power_limit; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 29 | } |
| 30 | } |
| 31 | |
| 32 | static u8 parse_mpdudensity(u8 mpdudensity) |
| 33 | { |
| 34 | /* |
| 35 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": |
| 36 | * 0 for no restriction |
| 37 | * 1 for 1/4 us |
| 38 | * 2 for 1/2 us |
| 39 | * 3 for 1 us |
| 40 | * 4 for 2 us |
| 41 | * 5 for 4 us |
| 42 | * 6 for 8 us |
| 43 | * 7 for 16 us |
| 44 | */ |
| 45 | switch (mpdudensity) { |
| 46 | case 0: |
| 47 | return 0; |
| 48 | case 1: |
| 49 | case 2: |
| 50 | case 3: |
| 51 | /* Our lower layer calculations limit our precision to |
| 52 | 1 microsecond */ |
| 53 | return 1; |
| 54 | case 4: |
| 55 | return 2; |
| 56 | case 5: |
| 57 | return 4; |
| 58 | case 6: |
| 59 | return 8; |
| 60 | case 7: |
| 61 | return 16; |
| 62 | default: |
| 63 | return 0; |
| 64 | } |
| 65 | } |
| 66 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 67 | static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, |
| 68 | struct ieee80211_hw *hw) |
| 69 | { |
| 70 | struct ieee80211_channel *curchan = hw->conf.channel; |
| 71 | struct ath9k_channel *channel; |
| 72 | u8 chan_idx; |
| 73 | |
| 74 | chan_idx = curchan->hw_value; |
| 75 | channel = &sc->sc_ah->channels[chan_idx]; |
| 76 | ath9k_update_ichannel(sc, hw, channel); |
| 77 | return channel; |
| 78 | } |
| 79 | |
Sujith | 5562420 | 2010-01-08 10:36:02 +0530 | [diff] [blame] | 80 | bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode) |
Luis R. Rodriguez | 8c77a56 | 2009-09-09 21:02:34 -0700 | [diff] [blame] | 81 | { |
| 82 | unsigned long flags; |
| 83 | bool ret; |
| 84 | |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 85 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
| 86 | ret = ath9k_hw_setpower(sc->sc_ah, mode); |
| 87 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); |
Luis R. Rodriguez | 8c77a56 | 2009-09-09 21:02:34 -0700 | [diff] [blame] | 88 | |
| 89 | return ret; |
| 90 | } |
| 91 | |
Luis R. Rodriguez | a91d75a | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 92 | void ath9k_ps_wakeup(struct ath_softc *sc) |
| 93 | { |
Felix Fietkau | 898c914 | 2010-10-12 14:02:53 +0200 | [diff] [blame] | 94 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Luis R. Rodriguez | a91d75a | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 95 | unsigned long flags; |
Felix Fietkau | fbb078f | 2010-11-03 01:36:51 +0100 | [diff] [blame] | 96 | enum ath9k_power_mode power_mode; |
Luis R. Rodriguez | a91d75a | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 97 | |
| 98 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
| 99 | if (++sc->ps_usecount != 1) |
| 100 | goto unlock; |
| 101 | |
Felix Fietkau | fbb078f | 2010-11-03 01:36:51 +0100 | [diff] [blame] | 102 | power_mode = sc->sc_ah->power_mode; |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 103 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
Luis R. Rodriguez | a91d75a | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 104 | |
Felix Fietkau | 898c914 | 2010-10-12 14:02:53 +0200 | [diff] [blame] | 105 | /* |
| 106 | * While the hardware is asleep, the cycle counters contain no |
| 107 | * useful data. Better clear them now so that they don't mess up |
| 108 | * survey data results. |
| 109 | */ |
Felix Fietkau | fbb078f | 2010-11-03 01:36:51 +0100 | [diff] [blame] | 110 | if (power_mode != ATH9K_PM_AWAKE) { |
| 111 | spin_lock(&common->cc_lock); |
| 112 | ath_hw_cycle_counters_update(common); |
| 113 | memset(&common->cc_survey, 0, sizeof(common->cc_survey)); |
| 114 | spin_unlock(&common->cc_lock); |
| 115 | } |
Felix Fietkau | 898c914 | 2010-10-12 14:02:53 +0200 | [diff] [blame] | 116 | |
Luis R. Rodriguez | a91d75a | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 117 | unlock: |
| 118 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); |
| 119 | } |
| 120 | |
| 121 | void ath9k_ps_restore(struct ath_softc *sc) |
| 122 | { |
Felix Fietkau | 898c914 | 2010-10-12 14:02:53 +0200 | [diff] [blame] | 123 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Luis R. Rodriguez | a91d75a | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 124 | unsigned long flags; |
| 125 | |
| 126 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
| 127 | if (--sc->ps_usecount != 0) |
| 128 | goto unlock; |
| 129 | |
Felix Fietkau | 898c914 | 2010-10-12 14:02:53 +0200 | [diff] [blame] | 130 | spin_lock(&common->cc_lock); |
| 131 | ath_hw_cycle_counters_update(common); |
| 132 | spin_unlock(&common->cc_lock); |
| 133 | |
Vivek Natarajan | 1dbfd9d | 2010-01-29 16:56:51 +0530 | [diff] [blame] | 134 | if (sc->ps_idle) |
| 135 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP); |
| 136 | else if (sc->ps_enabled && |
| 137 | !(sc->ps_flags & (PS_WAIT_FOR_BEACON | |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 138 | PS_WAIT_FOR_CAB | |
| 139 | PS_WAIT_FOR_PSPOLL_DATA | |
| 140 | PS_WAIT_FOR_TX_ACK))) |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 141 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); |
Luis R. Rodriguez | a91d75a | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 142 | |
| 143 | unlock: |
| 144 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); |
| 145 | } |
| 146 | |
Felix Fietkau | 5ee0865 | 2010-07-31 00:11:59 +0200 | [diff] [blame] | 147 | static void ath_start_ani(struct ath_common *common) |
| 148 | { |
| 149 | struct ath_hw *ah = common->ah; |
| 150 | unsigned long timestamp = jiffies_to_msecs(jiffies); |
| 151 | struct ath_softc *sc = (struct ath_softc *) common->priv; |
| 152 | |
| 153 | if (!(sc->sc_flags & SC_OP_ANI_RUN)) |
| 154 | return; |
| 155 | |
| 156 | if (sc->sc_flags & SC_OP_OFFCHANNEL) |
| 157 | return; |
| 158 | |
| 159 | common->ani.longcal_timer = timestamp; |
| 160 | common->ani.shortcal_timer = timestamp; |
| 161 | common->ani.checkani_timer = timestamp; |
| 162 | |
| 163 | mod_timer(&common->ani.timer, |
| 164 | jiffies + |
| 165 | msecs_to_jiffies((u32)ah->config.ani_poll_interval)); |
| 166 | } |
| 167 | |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 168 | static void ath_update_survey_nf(struct ath_softc *sc, int channel) |
| 169 | { |
| 170 | struct ath_hw *ah = sc->sc_ah; |
| 171 | struct ath9k_channel *chan = &ah->channels[channel]; |
| 172 | struct survey_info *survey = &sc->survey[channel]; |
| 173 | |
| 174 | if (chan->noisefloor) { |
| 175 | survey->filled |= SURVEY_INFO_NOISE_DBM; |
| 176 | survey->noise = chan->noisefloor; |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | static void ath_update_survey_stats(struct ath_softc *sc) |
| 181 | { |
| 182 | struct ath_hw *ah = sc->sc_ah; |
| 183 | struct ath_common *common = ath9k_hw_common(ah); |
| 184 | int pos = ah->curchan - &ah->channels[0]; |
| 185 | struct survey_info *survey = &sc->survey[pos]; |
| 186 | struct ath_cycle_counters *cc = &common->cc_survey; |
| 187 | unsigned int div = common->clockrate * 1000; |
| 188 | |
Felix Fietkau | 0845735 | 2010-10-20 15:59:28 +0200 | [diff] [blame] | 189 | if (!ah->curchan) |
| 190 | return; |
| 191 | |
Felix Fietkau | 898c914 | 2010-10-12 14:02:53 +0200 | [diff] [blame] | 192 | if (ah->power_mode == ATH9K_PM_AWAKE) |
| 193 | ath_hw_cycle_counters_update(common); |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 194 | |
| 195 | if (cc->cycles > 0) { |
| 196 | survey->filled |= SURVEY_INFO_CHANNEL_TIME | |
| 197 | SURVEY_INFO_CHANNEL_TIME_BUSY | |
| 198 | SURVEY_INFO_CHANNEL_TIME_RX | |
| 199 | SURVEY_INFO_CHANNEL_TIME_TX; |
| 200 | survey->channel_time += cc->cycles / div; |
| 201 | survey->channel_time_busy += cc->rx_busy / div; |
| 202 | survey->channel_time_rx += cc->rx_frame / div; |
| 203 | survey->channel_time_tx += cc->tx_frame / div; |
| 204 | } |
| 205 | memset(cc, 0, sizeof(*cc)); |
| 206 | |
| 207 | ath_update_survey_nf(sc, pos); |
| 208 | } |
| 209 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 210 | /* |
| 211 | * Set/change channels. If the channel is really being changed, it's done |
| 212 | * by reseting the chip. To accomplish this we must first cleanup any pending |
| 213 | * DMA, then restart stuff. |
| 214 | */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 215 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, |
| 216 | struct ath9k_channel *hchan) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 217 | { |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 218 | struct ath_wiphy *aphy = hw->priv; |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 219 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 220 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 221 | struct ieee80211_conf *conf = &common->hw->conf; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 222 | bool fastcc = true, stopped; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 223 | struct ieee80211_channel *channel = hw->conf.channel; |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 224 | struct ath9k_hw_cal_data *caldata = NULL; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 225 | int r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 226 | |
| 227 | if (sc->sc_flags & SC_OP_INVALID) |
| 228 | return -EIO; |
| 229 | |
Felix Fietkau | 5ee0865 | 2010-07-31 00:11:59 +0200 | [diff] [blame] | 230 | del_timer_sync(&common->ani.timer); |
| 231 | cancel_work_sync(&sc->paprd_work); |
| 232 | cancel_work_sync(&sc->hw_check_work); |
| 233 | cancel_delayed_work_sync(&sc->tx_complete_work); |
| 234 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 235 | ath9k_ps_wakeup(sc); |
| 236 | |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 237 | spin_lock_bh(&sc->sc_pcu_lock); |
| 238 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 239 | /* |
| 240 | * This is only performed if the channel settings have |
| 241 | * actually changed. |
| 242 | * |
| 243 | * To switch channels clear any pending DMA operations; |
| 244 | * wait long enough for the RX fifo to drain, reset the |
| 245 | * hardware at the new frequency, and then re-enable |
| 246 | * the relevant bits of the h/w. |
| 247 | */ |
Felix Fietkau | 4df3071 | 2010-11-08 20:54:47 +0100 | [diff] [blame] | 248 | ath9k_hw_disable_interrupts(ah); |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 249 | ath_drain_all_txq(sc, false); |
Luis R. Rodriguez | 5e848f7 | 2010-10-20 16:07:06 -0700 | [diff] [blame] | 250 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 251 | stopped = ath_stoprecv(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 252 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 253 | /* XXX: do not flush receive queue here. We don't want |
| 254 | * to flush data frames already in queue because of |
| 255 | * changing channel. */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 256 | |
Felix Fietkau | 5ee0865 | 2010-07-31 00:11:59 +0200 | [diff] [blame] | 257 | if (!stopped || !(sc->sc_flags & SC_OP_OFFCHANNEL)) |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 258 | fastcc = false; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 259 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 260 | if (!(sc->sc_flags & SC_OP_OFFCHANNEL)) |
| 261 | caldata = &aphy->caldata; |
| 262 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 263 | ath_dbg(common, ATH_DBG_CONFIG, |
| 264 | "(%u MHz) -> (%u MHz), conf_is_ht40: %d fastcc: %d\n", |
| 265 | sc->sc_ah->curchan->channel, |
| 266 | channel->center_freq, conf_is_ht40(conf), |
| 267 | fastcc); |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 268 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 269 | r = ath9k_hw_reset(ah, hchan, caldata, fastcc); |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 270 | if (r) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 271 | ath_err(common, |
| 272 | "Unable to reset channel (%u MHz), reset status %d\n", |
| 273 | channel->center_freq, r); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 274 | goto ps_restore; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 275 | } |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 276 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 277 | if (ath_startrecv(sc) != 0) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 278 | ath_err(common, "Unable to restart recv logic\n"); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 279 | r = -EIO; |
| 280 | goto ps_restore; |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 281 | } |
| 282 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 283 | ath_update_txpow(sc); |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 284 | ath9k_hw_set_interrupts(ah, ah->imask); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 285 | |
Luis R. Rodriguez | 48a6a46 | 2010-09-16 15:12:28 -0400 | [diff] [blame] | 286 | if (!(sc->sc_flags & (SC_OP_OFFCHANNEL))) { |
Luis R. Rodriguez | 52b8ac9 | 2010-09-16 15:12:27 -0400 | [diff] [blame] | 287 | ath_beacon_config(sc, NULL); |
Luis R. Rodriguez | 48a6a46 | 2010-09-16 15:12:28 -0400 | [diff] [blame] | 288 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
| 289 | ath_start_ani(common); |
| 290 | } |
Luis R. Rodriguez | 52b8ac9 | 2010-09-16 15:12:27 -0400 | [diff] [blame] | 291 | |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 292 | ps_restore: |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 293 | spin_unlock_bh(&sc->sc_pcu_lock); |
| 294 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 295 | ath9k_ps_restore(sc); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 296 | return r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 297 | } |
| 298 | |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 299 | static void ath_paprd_activate(struct ath_softc *sc) |
| 300 | { |
| 301 | struct ath_hw *ah = sc->sc_ah; |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 302 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
Vasanthakumar Thiagarajan | 9094537 | 2010-09-20 22:54:46 -0700 | [diff] [blame] | 303 | struct ath_common *common = ath9k_hw_common(ah); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 304 | int chain; |
| 305 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 306 | if (!caldata || !caldata->paprd_done) |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 307 | return; |
| 308 | |
| 309 | ath9k_ps_wakeup(sc); |
Felix Fietkau | ddfef79 | 2010-07-30 21:02:11 +0200 | [diff] [blame] | 310 | ar9003_paprd_enable(ah, false); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 311 | for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { |
Vasanthakumar Thiagarajan | 9094537 | 2010-09-20 22:54:46 -0700 | [diff] [blame] | 312 | if (!(common->tx_chainmask & BIT(chain))) |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 313 | continue; |
| 314 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 315 | ar9003_paprd_populate_single_table(ah, caldata, chain); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 316 | } |
| 317 | |
| 318 | ar9003_paprd_enable(ah, true); |
| 319 | ath9k_ps_restore(sc); |
| 320 | } |
| 321 | |
| 322 | void ath_paprd_calibrate(struct work_struct *work) |
| 323 | { |
| 324 | struct ath_softc *sc = container_of(work, struct ath_softc, paprd_work); |
| 325 | struct ieee80211_hw *hw = sc->hw; |
| 326 | struct ath_hw *ah = sc->sc_ah; |
| 327 | struct ieee80211_hdr *hdr; |
| 328 | struct sk_buff *skb = NULL; |
| 329 | struct ieee80211_tx_info *tx_info; |
| 330 | int band = hw->conf.channel->band; |
| 331 | struct ieee80211_supported_band *sband = &sc->sbands[band]; |
| 332 | struct ath_tx_control txctl; |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 333 | struct ath9k_hw_cal_data *caldata = ah->caldata; |
Vasanthakumar Thiagarajan | 9094537 | 2010-09-20 22:54:46 -0700 | [diff] [blame] | 334 | struct ath_common *common = ath9k_hw_common(ah); |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 335 | int ftype; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 336 | int chain_ok = 0; |
| 337 | int chain; |
| 338 | int len = 1800; |
| 339 | int time_left; |
| 340 | int i; |
| 341 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 342 | if (!caldata) |
| 343 | return; |
| 344 | |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 345 | skb = alloc_skb(len, GFP_KERNEL); |
| 346 | if (!skb) |
| 347 | return; |
| 348 | |
| 349 | tx_info = IEEE80211_SKB_CB(skb); |
| 350 | |
| 351 | skb_put(skb, len); |
| 352 | memset(skb->data, 0, len); |
| 353 | hdr = (struct ieee80211_hdr *)skb->data; |
| 354 | ftype = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC; |
| 355 | hdr->frame_control = cpu_to_le16(ftype); |
John W. Linville | a3d3da1 | 2010-07-20 13:15:31 -0400 | [diff] [blame] | 356 | hdr->duration_id = cpu_to_le16(10); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 357 | memcpy(hdr->addr1, hw->wiphy->perm_addr, ETH_ALEN); |
| 358 | memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN); |
| 359 | memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN); |
| 360 | |
| 361 | memset(&txctl, 0, sizeof(txctl)); |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 362 | txctl.txq = sc->tx.txq_map[WME_AC_BE]; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 363 | |
Vasanthakumar Thiagarajan | 47399f1 | 2010-06-24 04:09:27 -0700 | [diff] [blame] | 364 | ath9k_ps_wakeup(sc); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 365 | ar9003_paprd_init_table(ah); |
| 366 | for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { |
Vasanthakumar Thiagarajan | 9094537 | 2010-09-20 22:54:46 -0700 | [diff] [blame] | 367 | if (!(common->tx_chainmask & BIT(chain))) |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 368 | continue; |
| 369 | |
| 370 | chain_ok = 0; |
| 371 | memset(tx_info, 0, sizeof(*tx_info)); |
| 372 | tx_info->band = band; |
| 373 | |
| 374 | for (i = 0; i < 4; i++) { |
| 375 | tx_info->control.rates[i].idx = sband->n_bitrates - 1; |
| 376 | tx_info->control.rates[i].count = 6; |
| 377 | } |
| 378 | |
| 379 | init_completion(&sc->paprd_complete); |
Felix Fietkau | 82259b7 | 2010-11-14 15:20:04 +0100 | [diff] [blame] | 380 | sc->paprd_pending = true; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 381 | ar9003_paprd_setup_gain_table(ah, chain); |
| 382 | txctl.paprd = BIT(chain); |
| 383 | if (ath_tx_start(hw, skb, &txctl) != 0) |
| 384 | break; |
| 385 | |
| 386 | time_left = wait_for_completion_timeout(&sc->paprd_complete, |
Vasanthakumar Thiagarajan | ca369eb | 2010-06-24 02:42:44 -0700 | [diff] [blame] | 387 | msecs_to_jiffies(ATH_PAPRD_TIMEOUT)); |
Felix Fietkau | 82259b7 | 2010-11-14 15:20:04 +0100 | [diff] [blame] | 388 | sc->paprd_pending = false; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 389 | if (!time_left) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 390 | ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE, |
| 391 | "Timeout waiting for paprd training on TX chain %d\n", |
| 392 | chain); |
Vasanthakumar Thiagarajan | ca369eb | 2010-06-24 02:42:44 -0700 | [diff] [blame] | 393 | goto fail_paprd; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 394 | } |
| 395 | |
| 396 | if (!ar9003_paprd_is_done(ah)) |
| 397 | break; |
| 398 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 399 | if (ar9003_paprd_create_curve(ah, caldata, chain) != 0) |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 400 | break; |
| 401 | |
| 402 | chain_ok = 1; |
| 403 | } |
| 404 | kfree_skb(skb); |
| 405 | |
| 406 | if (chain_ok) { |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 407 | caldata->paprd_done = true; |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 408 | ath_paprd_activate(sc); |
| 409 | } |
| 410 | |
Vasanthakumar Thiagarajan | ca369eb | 2010-06-24 02:42:44 -0700 | [diff] [blame] | 411 | fail_paprd: |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 412 | ath9k_ps_restore(sc); |
| 413 | } |
| 414 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 415 | /* |
| 416 | * This routine performs the periodic noise floor calibration function |
| 417 | * that is used to adjust and optimize the chip performance. This |
| 418 | * takes environmental changes (location, temperature) into account. |
| 419 | * When the task is complete, it reschedules itself depending on the |
| 420 | * appropriate interval that was calculated. |
| 421 | */ |
Sujith | 5562420 | 2010-01-08 10:36:02 +0530 | [diff] [blame] | 422 | void ath_ani_calibrate(unsigned long data) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 423 | { |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 424 | struct ath_softc *sc = (struct ath_softc *)data; |
| 425 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 426 | struct ath_common *common = ath9k_hw_common(ah); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 427 | bool longcal = false; |
| 428 | bool shortcal = false; |
| 429 | bool aniflag = false; |
| 430 | unsigned int timestamp = jiffies_to_msecs(jiffies); |
Felix Fietkau | 6044474 | 2010-08-02 15:53:15 +0200 | [diff] [blame] | 431 | u32 cal_interval, short_cal_interval, long_cal_interval; |
Felix Fietkau | b5bfc56 | 2010-10-08 22:13:53 +0200 | [diff] [blame] | 432 | unsigned long flags; |
Felix Fietkau | 6044474 | 2010-08-02 15:53:15 +0200 | [diff] [blame] | 433 | |
| 434 | if (ah->caldata && ah->caldata->nfcal_interference) |
| 435 | long_cal_interval = ATH_LONG_CALINTERVAL_INT; |
| 436 | else |
| 437 | long_cal_interval = ATH_LONG_CALINTERVAL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 438 | |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 439 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
| 440 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 441 | |
Jouni Malinen | 1ffc1c6 | 2009-05-19 17:01:39 +0300 | [diff] [blame] | 442 | /* Only calibrate if awake */ |
| 443 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) |
| 444 | goto set_timer; |
| 445 | |
| 446 | ath9k_ps_wakeup(sc); |
| 447 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 448 | /* Long calibration runs independently of short calibration. */ |
Felix Fietkau | 6044474 | 2010-08-02 15:53:15 +0200 | [diff] [blame] | 449 | if ((timestamp - common->ani.longcal_timer) >= long_cal_interval) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 450 | longcal = true; |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 451 | ath_dbg(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 452 | common->ani.longcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 453 | } |
| 454 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 455 | /* Short calibration applies only while caldone is false */ |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 456 | if (!common->ani.caldone) { |
| 457 | if ((timestamp - common->ani.shortcal_timer) >= short_cal_interval) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 458 | shortcal = true; |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 459 | ath_dbg(common, ATH_DBG_ANI, |
| 460 | "shortcal @%lu\n", jiffies); |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 461 | common->ani.shortcal_timer = timestamp; |
| 462 | common->ani.resetcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 463 | } |
| 464 | } else { |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 465 | if ((timestamp - common->ani.resetcal_timer) >= |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 466 | ATH_RESTART_CALINTERVAL) { |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 467 | common->ani.caldone = ath9k_hw_reset_calvalid(ah); |
| 468 | if (common->ani.caldone) |
| 469 | common->ani.resetcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 470 | } |
| 471 | } |
| 472 | |
| 473 | /* Verify whether we must check ANI */ |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 474 | if ((timestamp - common->ani.checkani_timer) >= |
| 475 | ah->config.ani_poll_interval) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 476 | aniflag = true; |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 477 | common->ani.checkani_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 478 | } |
| 479 | |
| 480 | /* Skip all processing if there's nothing to do. */ |
| 481 | if (longcal || shortcal || aniflag) { |
| 482 | /* Call ANI routine if necessary */ |
Felix Fietkau | b5bfc56 | 2010-10-08 22:13:53 +0200 | [diff] [blame] | 483 | if (aniflag) { |
| 484 | spin_lock_irqsave(&common->cc_lock, flags); |
Vasanthakumar Thiagarajan | 22e66a4 | 2009-08-19 16:23:40 +0530 | [diff] [blame] | 485 | ath9k_hw_ani_monitor(ah, ah->curchan); |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 486 | ath_update_survey_stats(sc); |
Felix Fietkau | b5bfc56 | 2010-10-08 22:13:53 +0200 | [diff] [blame] | 487 | spin_unlock_irqrestore(&common->cc_lock, flags); |
| 488 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 489 | |
| 490 | /* Perform calibration if necessary */ |
| 491 | if (longcal || shortcal) { |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 492 | common->ani.caldone = |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 493 | ath9k_hw_calibrate(ah, |
| 494 | ah->curchan, |
| 495 | common->rx_chainmask, |
| 496 | longcal); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 497 | } |
| 498 | } |
| 499 | |
Jouni Malinen | 1ffc1c6 | 2009-05-19 17:01:39 +0300 | [diff] [blame] | 500 | ath9k_ps_restore(sc); |
| 501 | |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 502 | set_timer: |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 503 | /* |
| 504 | * Set timer interval based on previous results. |
| 505 | * The interval must be the shortest necessary to satisfy ANI, |
| 506 | * short calibration and long calibration. |
| 507 | */ |
Sujith | aac9207 | 2008-12-02 18:37:54 +0530 | [diff] [blame] | 508 | cal_interval = ATH_LONG_CALINTERVAL; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 509 | if (sc->sc_ah->config.enable_ani) |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 510 | cal_interval = min(cal_interval, |
| 511 | (u32)ah->config.ani_poll_interval); |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 512 | if (!common->ani.caldone) |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 513 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 514 | |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 515 | mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 516 | if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) { |
| 517 | if (!ah->caldata->paprd_done) |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 518 | ieee80211_queue_work(sc->hw, &sc->paprd_work); |
| 519 | else |
| 520 | ath_paprd_activate(sc); |
| 521 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | /* |
| 525 | * Update tx/rx chainmask. For legacy association, |
| 526 | * hard code chainmask to 1x1, for 11n association, use |
Vasanthakumar Thiagarajan | c97c92d | 2009-01-02 15:35:46 +0530 | [diff] [blame] | 527 | * the chainmask configuration, for bt coexistence, use |
| 528 | * the chainmask configuration even in legacy mode. |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 529 | */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 530 | void ath_update_chainmask(struct ath_softc *sc, int is_ht) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 531 | { |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 532 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 533 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 534 | |
Felix Fietkau | 5ee0865 | 2010-07-31 00:11:59 +0200 | [diff] [blame] | 535 | if ((sc->sc_flags & SC_OP_OFFCHANNEL) || is_ht || |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 536 | (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE)) { |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 537 | common->tx_chainmask = ah->caps.tx_chainmask; |
| 538 | common->rx_chainmask = ah->caps.rx_chainmask; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 539 | } else { |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 540 | common->tx_chainmask = 1; |
| 541 | common->rx_chainmask = 1; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 542 | } |
| 543 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 544 | ath_dbg(common, ATH_DBG_CONFIG, |
| 545 | "tx chmask: %d, rx chmask: %d\n", |
| 546 | common->tx_chainmask, |
| 547 | common->rx_chainmask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) |
| 551 | { |
| 552 | struct ath_node *an; |
Mohammed Shafi Shajakhan | ea066d5 | 2010-11-23 20:42:27 +0530 | [diff] [blame] | 553 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 554 | an = (struct ath_node *)sta->drv_priv; |
| 555 | |
Mohammed Shafi Shajakhan | ea066d5 | 2010-11-23 20:42:27 +0530 | [diff] [blame] | 556 | if ((ah->caps.hw_caps) & ATH9K_HW_CAP_APM) |
| 557 | sc->sc_flags |= SC_OP_ENABLE_APM; |
| 558 | |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 559 | if (sc->sc_flags & SC_OP_TXAGGR) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 560 | ath_tx_node_init(sc, an); |
Sujith | 9e98ac6 | 2009-07-23 15:32:34 +0530 | [diff] [blame] | 561 | an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 562 | sta->ht_cap.ampdu_factor); |
| 563 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); |
| 564 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 565 | } |
| 566 | |
| 567 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) |
| 568 | { |
| 569 | struct ath_node *an = (struct ath_node *)sta->drv_priv; |
| 570 | |
| 571 | if (sc->sc_flags & SC_OP_TXAGGR) |
| 572 | ath_tx_node_cleanup(sc, an); |
| 573 | } |
| 574 | |
Felix Fietkau | 347809f | 2010-07-02 00:09:52 +0200 | [diff] [blame] | 575 | void ath_hw_check(struct work_struct *work) |
| 576 | { |
| 577 | struct ath_softc *sc = container_of(work, struct ath_softc, hw_check_work); |
| 578 | int i; |
| 579 | |
| 580 | ath9k_ps_wakeup(sc); |
| 581 | |
| 582 | for (i = 0; i < 3; i++) { |
| 583 | if (ath9k_hw_check_alive(sc->sc_ah)) |
| 584 | goto out; |
| 585 | |
| 586 | msleep(1); |
| 587 | } |
Felix Fietkau | fac6b6a | 2010-10-23 17:45:38 +0200 | [diff] [blame] | 588 | ath_reset(sc, true); |
Felix Fietkau | 347809f | 2010-07-02 00:09:52 +0200 | [diff] [blame] | 589 | |
| 590 | out: |
| 591 | ath9k_ps_restore(sc); |
| 592 | } |
| 593 | |
Sujith | 5562420 | 2010-01-08 10:36:02 +0530 | [diff] [blame] | 594 | void ath9k_tasklet(unsigned long data) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 595 | { |
| 596 | struct ath_softc *sc = (struct ath_softc *)data; |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 597 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 598 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 599 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 600 | u32 status = sc->intrstatus; |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 601 | u32 rxmask; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 602 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 603 | ath9k_ps_wakeup(sc); |
| 604 | |
Felix Fietkau | 347809f | 2010-07-02 00:09:52 +0200 | [diff] [blame] | 605 | if (status & ATH9K_INT_FATAL) { |
Felix Fietkau | fac6b6a | 2010-10-23 17:45:38 +0200 | [diff] [blame] | 606 | ath_reset(sc, true); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 607 | ath9k_ps_restore(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 608 | return; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 609 | } |
| 610 | |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 611 | spin_lock_bh(&sc->sc_pcu_lock); |
| 612 | |
Felix Fietkau | 347809f | 2010-07-02 00:09:52 +0200 | [diff] [blame] | 613 | if (!ath9k_hw_check_alive(ah)) |
| 614 | ieee80211_queue_work(sc->hw, &sc->hw_check_work); |
| 615 | |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 616 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) |
| 617 | rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL | |
| 618 | ATH9K_INT_RXORN); |
| 619 | else |
| 620 | rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN); |
| 621 | |
| 622 | if (status & rxmask) { |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 623 | /* Check for high priority Rx first */ |
| 624 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && |
| 625 | (status & ATH9K_INT_RXHP)) |
| 626 | ath_rx_tasklet(sc, 0, true); |
| 627 | |
| 628 | ath_rx_tasklet(sc, 0, false); |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 629 | } |
| 630 | |
Vasanthakumar Thiagarajan | e500324 | 2010-04-15 17:39:36 -0400 | [diff] [blame] | 631 | if (status & ATH9K_INT_TX) { |
| 632 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) |
| 633 | ath_tx_edma_tasklet(sc); |
| 634 | else |
| 635 | ath_tx_tasklet(sc); |
| 636 | } |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 637 | |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 638 | if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { |
Jouni Malinen | 54ce846 | 2009-05-19 17:01:40 +0300 | [diff] [blame] | 639 | /* |
| 640 | * TSF sync does not look correct; remain awake to sync with |
| 641 | * the next Beacon. |
| 642 | */ |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 643 | ath_dbg(common, ATH_DBG_PS, |
| 644 | "TSFOOR - Sync with next Beacon\n"); |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 645 | sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC; |
Jouni Malinen | 54ce846 | 2009-05-19 17:01:40 +0300 | [diff] [blame] | 646 | } |
| 647 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 648 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
Vasanthakumar Thiagarajan | ebb8e1d | 2009-09-01 17:46:32 +0530 | [diff] [blame] | 649 | if (status & ATH9K_INT_GENTIMER) |
| 650 | ath_gen_timer_isr(sc->sc_ah); |
| 651 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 652 | /* re-enable hardware interrupt */ |
Felix Fietkau | 4df3071 | 2010-11-08 20:54:47 +0100 | [diff] [blame] | 653 | ath9k_hw_enable_interrupts(ah); |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 654 | |
| 655 | spin_unlock_bh(&sc->sc_pcu_lock); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 656 | ath9k_ps_restore(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 657 | } |
| 658 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 659 | irqreturn_t ath_isr(int irq, void *dev) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 660 | { |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 661 | #define SCHED_INTR ( \ |
| 662 | ATH9K_INT_FATAL | \ |
| 663 | ATH9K_INT_RXORN | \ |
| 664 | ATH9K_INT_RXEOL | \ |
| 665 | ATH9K_INT_RX | \ |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 666 | ATH9K_INT_RXLP | \ |
| 667 | ATH9K_INT_RXHP | \ |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 668 | ATH9K_INT_TX | \ |
| 669 | ATH9K_INT_BMISS | \ |
| 670 | ATH9K_INT_CST | \ |
Vasanthakumar Thiagarajan | ebb8e1d | 2009-09-01 17:46:32 +0530 | [diff] [blame] | 671 | ATH9K_INT_TSFOOR | \ |
| 672 | ATH9K_INT_GENTIMER) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 673 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 674 | struct ath_softc *sc = dev; |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 675 | struct ath_hw *ah = sc->sc_ah; |
Felix Fietkau | b5bfc56 | 2010-10-08 22:13:53 +0200 | [diff] [blame] | 676 | struct ath_common *common = ath9k_hw_common(ah); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 677 | enum ath9k_int status; |
| 678 | bool sched = false; |
| 679 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 680 | /* |
| 681 | * The hardware is not ready/present, don't |
| 682 | * touch anything. Note this can happen early |
| 683 | * on if the IRQ is shared. |
| 684 | */ |
| 685 | if (sc->sc_flags & SC_OP_INVALID) |
| 686 | return IRQ_NONE; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 687 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 688 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 689 | /* shared irq, not for us */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 690 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 691 | if (!ath9k_hw_intrpend(ah)) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 692 | return IRQ_NONE; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 693 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 694 | /* |
| 695 | * Figure out the reason(s) for the interrupt. Note |
| 696 | * that the hal returns a pseudo-ISR that may include |
| 697 | * bits we haven't explicitly enabled so we mask the |
| 698 | * value to insure we only process bits we requested. |
| 699 | */ |
| 700 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 701 | status &= ah->imask; /* discard unasked-for bits */ |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 702 | |
| 703 | /* |
| 704 | * If there are no status bits set, then this interrupt was not |
| 705 | * for me (should have been caught above). |
| 706 | */ |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 707 | if (!status) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 708 | return IRQ_NONE; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 709 | |
| 710 | /* Cache the status */ |
| 711 | sc->intrstatus = status; |
| 712 | |
| 713 | if (status & SCHED_INTR) |
| 714 | sched = true; |
| 715 | |
| 716 | /* |
| 717 | * If a FATAL or RXORN interrupt is received, we have to reset the |
| 718 | * chip immediately. |
| 719 | */ |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 720 | if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) && |
| 721 | !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 722 | goto chip_reset; |
| 723 | |
Luis R. Rodriguez | 08578b8 | 2010-05-13 13:33:44 -0400 | [diff] [blame] | 724 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && |
| 725 | (status & ATH9K_INT_BB_WATCHDOG)) { |
Felix Fietkau | b5bfc56 | 2010-10-08 22:13:53 +0200 | [diff] [blame] | 726 | |
| 727 | spin_lock(&common->cc_lock); |
| 728 | ath_hw_cycle_counters_update(common); |
Luis R. Rodriguez | 08578b8 | 2010-05-13 13:33:44 -0400 | [diff] [blame] | 729 | ar9003_hw_bb_watchdog_dbg_info(ah); |
Felix Fietkau | b5bfc56 | 2010-10-08 22:13:53 +0200 | [diff] [blame] | 730 | spin_unlock(&common->cc_lock); |
| 731 | |
Luis R. Rodriguez | 08578b8 | 2010-05-13 13:33:44 -0400 | [diff] [blame] | 732 | goto chip_reset; |
| 733 | } |
| 734 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 735 | if (status & ATH9K_INT_SWBA) |
| 736 | tasklet_schedule(&sc->bcon_tasklet); |
| 737 | |
| 738 | if (status & ATH9K_INT_TXURN) |
| 739 | ath9k_hw_updatetxtriglevel(ah, true); |
| 740 | |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 741 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { |
| 742 | if (status & ATH9K_INT_RXEOL) { |
| 743 | ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN); |
| 744 | ath9k_hw_set_interrupts(ah, ah->imask); |
| 745 | } |
| 746 | } |
| 747 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 748 | if (status & ATH9K_INT_MIB) { |
| 749 | /* |
| 750 | * Disable interrupts until we service the MIB |
| 751 | * interrupt; otherwise it will continue to |
| 752 | * fire. |
| 753 | */ |
Felix Fietkau | 4df3071 | 2010-11-08 20:54:47 +0100 | [diff] [blame] | 754 | ath9k_hw_disable_interrupts(ah); |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 755 | /* |
| 756 | * Let the hal handle the event. We assume |
| 757 | * it will clear whatever condition caused |
| 758 | * the interrupt. |
| 759 | */ |
Felix Fietkau | 88eac2d | 2010-10-12 16:08:03 +0200 | [diff] [blame] | 760 | spin_lock(&common->cc_lock); |
Felix Fietkau | bfc472b | 2010-10-04 20:09:48 +0200 | [diff] [blame] | 761 | ath9k_hw_proc_mib_event(ah); |
Felix Fietkau | 88eac2d | 2010-10-12 16:08:03 +0200 | [diff] [blame] | 762 | spin_unlock(&common->cc_lock); |
Felix Fietkau | 4df3071 | 2010-11-08 20:54:47 +0100 | [diff] [blame] | 763 | ath9k_hw_enable_interrupts(ah); |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 764 | } |
| 765 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 766 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
| 767 | if (status & ATH9K_INT_TIM_TIMER) { |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 768 | /* Clear RxAbort bit so that we can |
| 769 | * receive frames */ |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 770 | ath9k_setpower(sc, ATH9K_PM_AWAKE); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 771 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 772 | sc->ps_flags |= PS_WAIT_FOR_BEACON; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 773 | } |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 774 | |
| 775 | chip_reset: |
| 776 | |
Sujith | 817e11d | 2008-12-07 21:42:44 +0530 | [diff] [blame] | 777 | ath_debug_stat_interrupt(sc, status); |
| 778 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 779 | if (sched) { |
Felix Fietkau | 4df3071 | 2010-11-08 20:54:47 +0100 | [diff] [blame] | 780 | /* turn off every interrupt */ |
| 781 | ath9k_hw_disable_interrupts(ah); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 782 | tasklet_schedule(&sc->intr_tq); |
| 783 | } |
| 784 | |
| 785 | return IRQ_HANDLED; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 786 | |
| 787 | #undef SCHED_INTR |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 788 | } |
| 789 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 790 | static u32 ath_get_extchanmode(struct ath_softc *sc, |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 791 | struct ieee80211_channel *chan, |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 792 | enum nl80211_channel_type channel_type) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 793 | { |
| 794 | u32 chanmode = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 795 | |
| 796 | switch (chan->band) { |
| 797 | case IEEE80211_BAND_2GHZ: |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 798 | switch(channel_type) { |
| 799 | case NL80211_CHAN_NO_HT: |
| 800 | case NL80211_CHAN_HT20: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 801 | chanmode = CHANNEL_G_HT20; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 802 | break; |
| 803 | case NL80211_CHAN_HT40PLUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 804 | chanmode = CHANNEL_G_HT40PLUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 805 | break; |
| 806 | case NL80211_CHAN_HT40MINUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 807 | chanmode = CHANNEL_G_HT40MINUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 808 | break; |
| 809 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 810 | break; |
| 811 | case IEEE80211_BAND_5GHZ: |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 812 | switch(channel_type) { |
| 813 | case NL80211_CHAN_NO_HT: |
| 814 | case NL80211_CHAN_HT20: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 815 | chanmode = CHANNEL_A_HT20; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 816 | break; |
| 817 | case NL80211_CHAN_HT40PLUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 818 | chanmode = CHANNEL_A_HT40PLUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 819 | break; |
| 820 | case NL80211_CHAN_HT40MINUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 821 | chanmode = CHANNEL_A_HT40MINUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 822 | break; |
| 823 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 824 | break; |
| 825 | default: |
| 826 | break; |
| 827 | } |
| 828 | |
| 829 | return chanmode; |
| 830 | } |
| 831 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 832 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
Felix Fietkau | 9fa23e1 | 2010-10-15 20:03:31 +0200 | [diff] [blame] | 833 | struct ieee80211_hw *hw, |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 834 | struct ieee80211_vif *vif, |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 835 | struct ieee80211_bss_conf *bss_conf) |
| 836 | { |
Felix Fietkau | 9fa23e1 | 2010-10-15 20:03:31 +0200 | [diff] [blame] | 837 | struct ath_wiphy *aphy = hw->priv; |
Luis R. Rodriguez | f2b2143 | 2009-09-10 08:50:20 -0700 | [diff] [blame] | 838 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 839 | struct ath_common *common = ath9k_hw_common(ah); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 840 | |
| 841 | if (bss_conf->assoc) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 842 | ath_dbg(common, ATH_DBG_CONFIG, |
| 843 | "Bss Info ASSOC %d, bssid: %pM\n", |
| 844 | bss_conf->aid, common->curbssid); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 845 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 846 | /* New association, store aid */ |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 847 | common->curaid = bss_conf->aid; |
Luis R. Rodriguez | f2b2143 | 2009-09-10 08:50:20 -0700 | [diff] [blame] | 848 | ath9k_hw_write_associd(ah); |
Jouni Malinen | ccdfeab | 2009-05-20 21:59:08 +0300 | [diff] [blame] | 849 | |
Senthil Balasubramanian | 2664f20 | 2009-06-24 18:56:39 +0530 | [diff] [blame] | 850 | /* |
| 851 | * Request a re-configuration of Beacon related timers |
| 852 | * on the receipt of the first Beacon frame (i.e., |
| 853 | * after time sync with the AP). |
| 854 | */ |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 855 | sc->ps_flags |= PS_BEACON_SYNC; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 856 | |
| 857 | /* Configure the beacon */ |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 858 | ath_beacon_config(sc, vif); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 859 | |
| 860 | /* Reset rssi stats */ |
Felix Fietkau | 9fa23e1 | 2010-10-15 20:03:31 +0200 | [diff] [blame] | 861 | aphy->last_rssi = ATH_RSSI_DUMMY_MARKER; |
Vasanthakumar Thiagarajan | 22e66a4 | 2009-08-19 16:23:40 +0530 | [diff] [blame] | 862 | sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 863 | |
Vasanthakumar Thiagarajan | 6c3118e | 2010-06-23 06:49:21 -0700 | [diff] [blame] | 864 | sc->sc_flags |= SC_OP_ANI_RUN; |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 865 | ath_start_ani(common); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 866 | } else { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 867 | ath_dbg(common, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 868 | common->curaid = 0; |
Senthil Balasubramanian | f38faa3 | 2009-06-24 18:56:40 +0530 | [diff] [blame] | 869 | /* Stop ANI */ |
Vasanthakumar Thiagarajan | 6c3118e | 2010-06-23 06:49:21 -0700 | [diff] [blame] | 870 | sc->sc_flags &= ~SC_OP_ANI_RUN; |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 871 | del_timer_sync(&common->ani.timer); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 872 | } |
| 873 | } |
| 874 | |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 875 | void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 876 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 877 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 878 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 879 | struct ieee80211_channel *channel = hw->conf.channel; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 880 | int r; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 881 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 882 | ath9k_ps_wakeup(sc); |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 883 | spin_lock_bh(&sc->sc_pcu_lock); |
| 884 | |
Vivek Natarajan | 93b1b37 | 2009-09-17 09:24:58 +0530 | [diff] [blame] | 885 | ath9k_hw_configpcipowersave(ah, 0, 0); |
Sujith | d2f5b3a | 2009-04-13 21:56:25 +0530 | [diff] [blame] | 886 | |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 887 | if (!ah->curchan) |
| 888 | ah->curchan = ath_get_curchannel(sc, sc->hw); |
| 889 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 890 | r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 891 | if (r) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 892 | ath_err(common, |
| 893 | "Unable to reset channel (%u MHz), reset status %d\n", |
| 894 | channel->center_freq, r); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 895 | } |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 896 | |
| 897 | ath_update_txpow(sc); |
| 898 | if (ath_startrecv(sc) != 0) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 899 | ath_err(common, "Unable to restart recv logic\n"); |
Luis R. Rodriguez | 4bdd1e9 | 2010-10-26 15:27:24 -0700 | [diff] [blame] | 900 | spin_unlock_bh(&sc->sc_pcu_lock); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 901 | return; |
| 902 | } |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 903 | if (sc->sc_flags & SC_OP_BEACONS) |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 904 | ath_beacon_config(sc, NULL); /* restart beacons */ |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 905 | |
| 906 | /* Re-Enable interrupts */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 907 | ath9k_hw_set_interrupts(ah, ah->imask); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 908 | |
| 909 | /* Enable LED */ |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 910 | ath9k_hw_cfg_output(ah, ah->led_pin, |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 911 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 912 | ath9k_hw_set_gpio(ah, ah->led_pin, 0); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 913 | |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 914 | ieee80211_wake_queues(hw); |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 915 | spin_unlock_bh(&sc->sc_pcu_lock); |
| 916 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 917 | ath9k_ps_restore(sc); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 918 | } |
| 919 | |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 920 | void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 921 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 922 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 923 | struct ieee80211_channel *channel = hw->conf.channel; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 924 | int r; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 925 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 926 | ath9k_ps_wakeup(sc); |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 927 | spin_lock_bh(&sc->sc_pcu_lock); |
| 928 | |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 929 | ieee80211_stop_queues(hw); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 930 | |
Vivek Natarajan | 982723d | 2010-06-23 12:08:29 +0530 | [diff] [blame] | 931 | /* |
| 932 | * Keep the LED on when the radio is disabled |
| 933 | * during idle unassociated state. |
| 934 | */ |
| 935 | if (!sc->ps_idle) { |
| 936 | ath9k_hw_set_gpio(ah, ah->led_pin, 1); |
| 937 | ath9k_hw_cfg_gpio_input(ah, ah->led_pin); |
| 938 | } |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 939 | |
| 940 | /* Disable interrupts */ |
Felix Fietkau | 4df3071 | 2010-11-08 20:54:47 +0100 | [diff] [blame] | 941 | ath9k_hw_disable_interrupts(ah); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 942 | |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 943 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
Luis R. Rodriguez | 5e848f7 | 2010-10-20 16:07:06 -0700 | [diff] [blame] | 944 | |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 945 | ath_stoprecv(sc); /* turn off frame recv */ |
| 946 | ath_flushrecv(sc); /* flush recv queue */ |
| 947 | |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 948 | if (!ah->curchan) |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 949 | ah->curchan = ath_get_curchannel(sc, hw); |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 950 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 951 | r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 952 | if (r) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 953 | ath_err(ath9k_hw_common(sc->sc_ah), |
| 954 | "Unable to reset channel (%u MHz), reset status %d\n", |
| 955 | channel->center_freq, r); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 956 | } |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 957 | |
| 958 | ath9k_hw_phy_disable(ah); |
Luis R. Rodriguez | 5e848f7 | 2010-10-20 16:07:06 -0700 | [diff] [blame] | 959 | |
Vivek Natarajan | 93b1b37 | 2009-09-17 09:24:58 +0530 | [diff] [blame] | 960 | ath9k_hw_configpcipowersave(ah, 1, 1); |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 961 | |
| 962 | spin_unlock_bh(&sc->sc_pcu_lock); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 963 | ath9k_ps_restore(sc); |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 964 | |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 965 | ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 966 | } |
| 967 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 968 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
| 969 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 970 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 971 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 972 | struct ieee80211_hw *hw = sc->hw; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 973 | int r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 974 | |
Sujith | 2ab81d4 | 2009-12-14 16:34:56 +0530 | [diff] [blame] | 975 | /* Stop ANI */ |
| 976 | del_timer_sync(&common->ani.timer); |
| 977 | |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 978 | spin_lock_bh(&sc->sc_pcu_lock); |
| 979 | |
Sujith | cc9c378 | 2010-01-08 10:36:09 +0530 | [diff] [blame] | 980 | ieee80211_stop_queues(hw); |
| 981 | |
Felix Fietkau | 4df3071 | 2010-11-08 20:54:47 +0100 | [diff] [blame] | 982 | ath9k_hw_disable_interrupts(ah); |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 983 | ath_drain_all_txq(sc, retry_tx); |
Luis R. Rodriguez | 5e848f7 | 2010-10-20 16:07:06 -0700 | [diff] [blame] | 984 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 985 | ath_stoprecv(sc); |
| 986 | ath_flushrecv(sc); |
| 987 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 988 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, ah->caldata, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 989 | if (r) |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 990 | ath_err(common, |
| 991 | "Unable to reset hardware; reset status %d\n", r); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 992 | |
| 993 | if (ath_startrecv(sc) != 0) |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 994 | ath_err(common, "Unable to start recv logic\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 995 | |
| 996 | /* |
| 997 | * We may be doing a reset in response to a request |
| 998 | * that changes the channel so update any state that |
| 999 | * might change as a result. |
| 1000 | */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1001 | ath_update_txpow(sc); |
| 1002 | |
Luis R. Rodriguez | 52b8ac9 | 2010-09-16 15:12:27 -0400 | [diff] [blame] | 1003 | if ((sc->sc_flags & SC_OP_BEACONS) || !(sc->sc_flags & (SC_OP_OFFCHANNEL))) |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1004 | ath_beacon_config(sc, NULL); /* restart beacons */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1005 | |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1006 | ath9k_hw_set_interrupts(ah, ah->imask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1007 | |
| 1008 | if (retry_tx) { |
| 1009 | int i; |
| 1010 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { |
| 1011 | if (ATH_TXQ_SETUP(sc, i)) { |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1012 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
| 1013 | ath_txq_schedule(sc, &sc->tx.txq[i]); |
| 1014 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1015 | } |
| 1016 | } |
| 1017 | } |
| 1018 | |
Sujith | cc9c378 | 2010-01-08 10:36:09 +0530 | [diff] [blame] | 1019 | ieee80211_wake_queues(hw); |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 1020 | spin_unlock_bh(&sc->sc_pcu_lock); |
Sujith | cc9c378 | 2010-01-08 10:36:09 +0530 | [diff] [blame] | 1021 | |
Sujith | 2ab81d4 | 2009-12-14 16:34:56 +0530 | [diff] [blame] | 1022 | /* Start ANI */ |
| 1023 | ath_start_ani(common); |
| 1024 | |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1025 | return r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1026 | } |
| 1027 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1028 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
| 1029 | * this redundant data */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1030 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
| 1031 | struct ath9k_channel *ichan) |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1032 | { |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1033 | struct ieee80211_channel *chan = hw->conf.channel; |
| 1034 | struct ieee80211_conf *conf = &hw->conf; |
| 1035 | |
| 1036 | ichan->channel = chan->center_freq; |
| 1037 | ichan->chan = chan; |
| 1038 | |
| 1039 | if (chan->band == IEEE80211_BAND_2GHZ) { |
| 1040 | ichan->chanmode = CHANNEL_G; |
Sujith | 8813262 | 2009-09-03 12:08:53 +0530 | [diff] [blame] | 1041 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM | CHANNEL_G; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1042 | } else { |
| 1043 | ichan->chanmode = CHANNEL_A; |
| 1044 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; |
| 1045 | } |
| 1046 | |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 1047 | if (conf_is_ht(conf)) |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1048 | ichan->chanmode = ath_get_extchanmode(sc, chan, |
| 1049 | conf->channel_type); |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1050 | } |
| 1051 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1052 | /**********************/ |
| 1053 | /* mac80211 callbacks */ |
| 1054 | /**********************/ |
| 1055 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1056 | static int ath9k_start(struct ieee80211_hw *hw) |
| 1057 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1058 | struct ath_wiphy *aphy = hw->priv; |
| 1059 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1060 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1061 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1062 | struct ieee80211_channel *curchan = hw->conf.channel; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1063 | struct ath9k_channel *init_channel; |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1064 | int r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1065 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1066 | ath_dbg(common, ATH_DBG_CONFIG, |
| 1067 | "Starting driver with initial channel: %d MHz\n", |
| 1068 | curchan->center_freq); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1069 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1070 | mutex_lock(&sc->mutex); |
| 1071 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 1072 | if (ath9k_wiphy_started(sc)) { |
| 1073 | if (sc->chan_idx == curchan->hw_value) { |
| 1074 | /* |
| 1075 | * Already on the operational channel, the new wiphy |
| 1076 | * can be marked active. |
| 1077 | */ |
| 1078 | aphy->state = ATH_WIPHY_ACTIVE; |
| 1079 | ieee80211_wake_queues(hw); |
| 1080 | } else { |
| 1081 | /* |
| 1082 | * Another wiphy is on another channel, start the new |
| 1083 | * wiphy in paused state. |
| 1084 | */ |
| 1085 | aphy->state = ATH_WIPHY_PAUSED; |
| 1086 | ieee80211_stop_queues(hw); |
| 1087 | } |
| 1088 | mutex_unlock(&sc->mutex); |
| 1089 | return 0; |
| 1090 | } |
| 1091 | aphy->state = ATH_WIPHY_ACTIVE; |
| 1092 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1093 | /* setup initial channel */ |
| 1094 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1095 | sc->chan_idx = curchan->hw_value; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1096 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1097 | init_channel = ath_get_curchannel(sc, hw); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1098 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1099 | /* Reset SERDES registers */ |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1100 | ath9k_hw_configpcipowersave(ah, 0, 0); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1101 | |
| 1102 | /* |
| 1103 | * The basic interface to setting the hardware in a good |
| 1104 | * state is ``reset''. On return the hardware is known to |
| 1105 | * be powered up and with interrupts disabled. This must |
| 1106 | * be followed by initialization of the appropriate bits |
| 1107 | * and then setup of the interrupt mask. |
| 1108 | */ |
Luis R. Rodriguez | 4bdd1e9 | 2010-10-26 15:27:24 -0700 | [diff] [blame] | 1109 | spin_lock_bh(&sc->sc_pcu_lock); |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 1110 | r = ath9k_hw_reset(ah, init_channel, ah->caldata, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1111 | if (r) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 1112 | ath_err(common, |
| 1113 | "Unable to reset hardware; reset status %d (freq %u MHz)\n", |
| 1114 | r, curchan->center_freq); |
Luis R. Rodriguez | 4bdd1e9 | 2010-10-26 15:27:24 -0700 | [diff] [blame] | 1115 | spin_unlock_bh(&sc->sc_pcu_lock); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1116 | goto mutex_unlock; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1117 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1118 | |
| 1119 | /* |
| 1120 | * This is needed only to setup initial state |
| 1121 | * but it's best done after a reset. |
| 1122 | */ |
| 1123 | ath_update_txpow(sc); |
| 1124 | |
| 1125 | /* |
| 1126 | * Setup the hardware after reset: |
| 1127 | * The receive engine is set going. |
| 1128 | * Frame transmit is handled entirely |
| 1129 | * in the frame output path; there's nothing to do |
| 1130 | * here except setup the interrupt mask. |
| 1131 | */ |
| 1132 | if (ath_startrecv(sc) != 0) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 1133 | ath_err(common, "Unable to start recv logic\n"); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1134 | r = -EIO; |
Luis R. Rodriguez | 4bdd1e9 | 2010-10-26 15:27:24 -0700 | [diff] [blame] | 1135 | spin_unlock_bh(&sc->sc_pcu_lock); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1136 | goto mutex_unlock; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1137 | } |
Luis R. Rodriguez | 4bdd1e9 | 2010-10-26 15:27:24 -0700 | [diff] [blame] | 1138 | spin_unlock_bh(&sc->sc_pcu_lock); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1139 | |
| 1140 | /* Setup our intr mask. */ |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 1141 | ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL | |
| 1142 | ATH9K_INT_RXORN | ATH9K_INT_FATAL | |
| 1143 | ATH9K_INT_GLOBAL; |
| 1144 | |
| 1145 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) |
Luis R. Rodriguez | 08578b8 | 2010-05-13 13:33:44 -0400 | [diff] [blame] | 1146 | ah->imask |= ATH9K_INT_RXHP | |
| 1147 | ATH9K_INT_RXLP | |
| 1148 | ATH9K_INT_BB_WATCHDOG; |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 1149 | else |
| 1150 | ah->imask |= ATH9K_INT_RX; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1151 | |
Felix Fietkau | 364734f | 2010-09-14 20:22:44 +0200 | [diff] [blame] | 1152 | ah->imask |= ATH9K_INT_GTT; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1153 | |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1154 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1155 | ah->imask |= ATH9K_INT_CST; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1156 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1157 | sc->sc_flags &= ~SC_OP_INVALID; |
Rajkumar Manoharan | 5f841b4 | 2010-10-27 18:31:15 +0530 | [diff] [blame] | 1158 | sc->sc_ah->is_monitoring = false; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1159 | |
| 1160 | /* Disable BMISS interrupt when we're not associated */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1161 | ah->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
| 1162 | ath9k_hw_set_interrupts(ah, ah->imask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1163 | |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1164 | ieee80211_wake_queues(hw); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1165 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1166 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
Senthil Balasubramanian | 164ace3 | 2009-07-14 20:17:09 -0400 | [diff] [blame] | 1167 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 1168 | if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) && |
| 1169 | !ah->btcoex_hw.enabled) { |
Luis R. Rodriguez | 5e19729 | 2009-09-09 15:15:55 -0700 | [diff] [blame] | 1170 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
| 1171 | AR_STOMP_LOW_WLAN_WGHT); |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1172 | ath9k_hw_btcoex_enable(ah); |
Vasanthakumar Thiagarajan | f985ad1 | 2009-08-26 21:08:43 +0530 | [diff] [blame] | 1173 | |
Luis R. Rodriguez | 5bb1279 | 2009-09-14 00:55:09 -0700 | [diff] [blame] | 1174 | if (common->bus_ops->bt_coex_prep) |
| 1175 | common->bus_ops->bt_coex_prep(common); |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 1176 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
Luis R. Rodriguez | 75d7839 | 2009-09-09 04:00:10 -0700 | [diff] [blame] | 1177 | ath9k_btcoex_timer_resume(sc); |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 1178 | } |
| 1179 | |
Gabor Juhos | 98c316e | 2010-11-25 18:26:07 +0100 | [diff] [blame] | 1180 | pm_qos_update_request(&sc->pm_qos_req, 55); |
Vivek Natarajan | 10598c1 | 2010-10-30 22:05:13 +0530 | [diff] [blame] | 1181 | |
Vasanthakumar Thiagarajan | 8060e16 | 2010-12-06 04:27:42 -0800 | [diff] [blame] | 1182 | if (ah->caps.pcie_lcr_extsync_en && common->bus_ops->extn_synch_en) |
| 1183 | common->bus_ops->extn_synch_en(common); |
| 1184 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1185 | mutex_unlock: |
| 1186 | mutex_unlock(&sc->mutex); |
| 1187 | |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1188 | return r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1189 | } |
| 1190 | |
| 1191 | static int ath9k_tx(struct ieee80211_hw *hw, |
| 1192 | struct sk_buff *skb) |
| 1193 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1194 | struct ath_wiphy *aphy = hw->priv; |
| 1195 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1196 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1197 | struct ath_tx_control txctl; |
Benoit Papillault | 1bc1488 | 2009-11-24 15:49:18 +0100 | [diff] [blame] | 1198 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1199 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1200 | if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1201 | ath_dbg(common, ATH_DBG_XMIT, |
| 1202 | "ath9k: %s: TX in unexpected wiphy state %d\n", |
| 1203 | wiphy_name(hw->wiphy), aphy->state); |
Jouni Malinen | ee166a0 | 2009-03-03 19:23:36 +0200 | [diff] [blame] | 1204 | goto exit; |
| 1205 | } |
| 1206 | |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 1207 | if (sc->ps_enabled) { |
Jouni Malinen | dc8c458 | 2009-05-19 17:01:42 +0300 | [diff] [blame] | 1208 | /* |
| 1209 | * mac80211 does not set PM field for normal data frames, so we |
| 1210 | * need to update that based on the current PS mode. |
| 1211 | */ |
| 1212 | if (ieee80211_is_data(hdr->frame_control) && |
| 1213 | !ieee80211_is_nullfunc(hdr->frame_control) && |
| 1214 | !ieee80211_has_pm(hdr->frame_control)) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1215 | ath_dbg(common, ATH_DBG_PS, |
| 1216 | "Add PM=1 for a TX frame while in PS mode\n"); |
Jouni Malinen | dc8c458 | 2009-05-19 17:01:42 +0300 | [diff] [blame] | 1217 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
| 1218 | } |
| 1219 | } |
| 1220 | |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1221 | if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { |
| 1222 | /* |
| 1223 | * We are using PS-Poll and mac80211 can request TX while in |
| 1224 | * power save mode. Need to wake up hardware for the TX to be |
| 1225 | * completed and if needed, also for RX of buffered frames. |
| 1226 | */ |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1227 | ath9k_ps_wakeup(sc); |
Vasanthakumar Thiagarajan | fdf7662 | 2010-05-17 18:57:55 -0700 | [diff] [blame] | 1228 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
| 1229 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1230 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1231 | ath_dbg(common, ATH_DBG_PS, |
| 1232 | "Sending PS-Poll to pick a buffered frame\n"); |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 1233 | sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA; |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1234 | } else { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1235 | ath_dbg(common, ATH_DBG_PS, |
| 1236 | "Wake up to complete TX\n"); |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 1237 | sc->ps_flags |= PS_WAIT_FOR_TX_ACK; |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1238 | } |
| 1239 | /* |
| 1240 | * The actual restore operation will happen only after |
| 1241 | * the sc_flags bit is cleared. We are just dropping |
| 1242 | * the ps_usecount here. |
| 1243 | */ |
| 1244 | ath9k_ps_restore(sc); |
| 1245 | } |
| 1246 | |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1247 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 1248 | txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)]; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1249 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1250 | ath_dbg(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1251 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1252 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1253 | ath_dbg(common, ATH_DBG_XMIT, "TX failed\n"); |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1254 | goto exit; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1255 | } |
| 1256 | |
| 1257 | return 0; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1258 | exit: |
| 1259 | dev_kfree_skb_any(skb); |
| 1260 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1261 | } |
| 1262 | |
| 1263 | static void ath9k_stop(struct ieee80211_hw *hw) |
| 1264 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1265 | struct ath_wiphy *aphy = hw->priv; |
| 1266 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1267 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1268 | struct ath_common *common = ath9k_hw_common(ah); |
Rajkumar Manoharan | 447a42c | 2010-07-08 12:12:29 +0530 | [diff] [blame] | 1269 | int i; |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1270 | |
Sujith | 4c48381 | 2009-08-18 10:51:52 +0530 | [diff] [blame] | 1271 | mutex_lock(&sc->mutex); |
| 1272 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 1273 | aphy->state = ATH_WIPHY_INACTIVE; |
| 1274 | |
Vivek Natarajan | 9a75c2f | 2010-06-22 11:52:37 +0530 | [diff] [blame] | 1275 | if (led_blink) |
| 1276 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
| 1277 | |
Luis R. Rodriguez | c94dbff | 2009-07-27 11:53:04 -0700 | [diff] [blame] | 1278 | cancel_delayed_work_sync(&sc->tx_complete_work); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame] | 1279 | cancel_work_sync(&sc->paprd_work); |
Felix Fietkau | 347809f | 2010-07-02 00:09:52 +0200 | [diff] [blame] | 1280 | cancel_work_sync(&sc->hw_check_work); |
Luis R. Rodriguez | c94dbff | 2009-07-27 11:53:04 -0700 | [diff] [blame] | 1281 | |
Rajkumar Manoharan | 447a42c | 2010-07-08 12:12:29 +0530 | [diff] [blame] | 1282 | for (i = 0; i < sc->num_sec_wiphy; i++) { |
| 1283 | if (sc->sec_wiphy[i]) |
| 1284 | break; |
| 1285 | } |
| 1286 | |
| 1287 | if (i == sc->num_sec_wiphy) { |
Luis R. Rodriguez | c94dbff | 2009-07-27 11:53:04 -0700 | [diff] [blame] | 1288 | cancel_delayed_work_sync(&sc->wiphy_work); |
| 1289 | cancel_work_sync(&sc->chan_work); |
| 1290 | } |
| 1291 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1292 | if (sc->sc_flags & SC_OP_INVALID) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1293 | ath_dbg(common, ATH_DBG_ANY, "Device not present\n"); |
Sujith | 4c48381 | 2009-08-18 10:51:52 +0530 | [diff] [blame] | 1294 | mutex_unlock(&sc->mutex); |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1295 | return; |
| 1296 | } |
| 1297 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 1298 | if (ath9k_wiphy_started(sc)) { |
| 1299 | mutex_unlock(&sc->mutex); |
| 1300 | return; /* another wiphy still in use */ |
| 1301 | } |
| 1302 | |
Sujith | 3867cf6 | 2009-12-23 20:03:27 -0500 | [diff] [blame] | 1303 | /* Ensure HW is awake when we try to shut it down. */ |
| 1304 | ath9k_ps_wakeup(sc); |
| 1305 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 1306 | if (ah->btcoex_hw.enabled) { |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1307 | ath9k_hw_btcoex_disable(ah); |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 1308 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
Luis R. Rodriguez | 75d7839 | 2009-09-09 04:00:10 -0700 | [diff] [blame] | 1309 | ath9k_btcoex_timer_pause(sc); |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 1310 | } |
| 1311 | |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 1312 | spin_lock_bh(&sc->sc_pcu_lock); |
| 1313 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1314 | /* make sure h/w will not generate any interrupt |
| 1315 | * before setting the invalid flag. */ |
Felix Fietkau | 4df3071 | 2010-11-08 20:54:47 +0100 | [diff] [blame] | 1316 | ath9k_hw_disable_interrupts(ah); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1317 | |
| 1318 | if (!(sc->sc_flags & SC_OP_INVALID)) { |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 1319 | ath_drain_all_txq(sc, false); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1320 | ath_stoprecv(sc); |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1321 | ath9k_hw_phy_disable(ah); |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 1322 | } else |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1323 | sc->rx.rxlink = NULL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1324 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1325 | /* disable HAL and put h/w to sleep */ |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1326 | ath9k_hw_disable(ah); |
| 1327 | ath9k_hw_configpcipowersave(ah, 1, 1); |
Luis R. Rodriguez | 6a6733f | 2010-10-26 15:27:25 -0700 | [diff] [blame] | 1328 | |
| 1329 | spin_unlock_bh(&sc->sc_pcu_lock); |
| 1330 | |
Sujith | 3867cf6 | 2009-12-23 20:03:27 -0500 | [diff] [blame] | 1331 | ath9k_ps_restore(sc); |
| 1332 | |
| 1333 | /* Finally, put the chip in FULL SLEEP mode */ |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 1334 | ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1335 | |
| 1336 | sc->sc_flags |= SC_OP_INVALID; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1337 | |
Gabor Juhos | 98c316e | 2010-11-25 18:26:07 +0100 | [diff] [blame] | 1338 | pm_qos_update_request(&sc->pm_qos_req, PM_QOS_DEFAULT_VALUE); |
Vivek Natarajan | 10598c1 | 2010-10-30 22:05:13 +0530 | [diff] [blame] | 1339 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1340 | mutex_unlock(&sc->mutex); |
| 1341 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1342 | ath_dbg(common, ATH_DBG_CONFIG, "Driver halt\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1343 | } |
| 1344 | |
| 1345 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1346 | struct ieee80211_vif *vif) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1347 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1348 | struct ath_wiphy *aphy = hw->priv; |
| 1349 | struct ath_softc *sc = aphy->sc; |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1350 | struct ath_hw *ah = sc->sc_ah; |
| 1351 | struct ath_common *common = ath9k_hw_common(ah); |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1352 | struct ath_vif *avp = (void *)vif->drv_priv; |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 1353 | enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1354 | int ret = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1355 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1356 | mutex_lock(&sc->mutex); |
| 1357 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1358 | switch (vif->type) { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1359 | case NL80211_IFTYPE_STATION: |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 1360 | ic_opmode = NL80211_IFTYPE_STATION; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1361 | break; |
Bill Jordan | e51f3ef | 2010-10-01 11:20:39 -0400 | [diff] [blame] | 1362 | case NL80211_IFTYPE_WDS: |
| 1363 | ic_opmode = NL80211_IFTYPE_WDS; |
| 1364 | break; |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1365 | case NL80211_IFTYPE_ADHOC: |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1366 | case NL80211_IFTYPE_AP: |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 1367 | case NL80211_IFTYPE_MESH_POINT: |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1368 | if (sc->nbcnvifs >= ATH_BCBUF) { |
| 1369 | ret = -ENOBUFS; |
| 1370 | goto out; |
| 1371 | } |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1372 | ic_opmode = vif->type; |
Jouni Malinen | 2ad67de | 2008-08-11 14:01:47 +0300 | [diff] [blame] | 1373 | break; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1374 | default: |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 1375 | ath_err(common, "Interface type %d not yet supported\n", |
| 1376 | vif->type); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1377 | ret = -EOPNOTSUPP; |
| 1378 | goto out; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1379 | } |
| 1380 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1381 | ath_dbg(common, ATH_DBG_CONFIG, |
| 1382 | "Attach a VIF of type: %d\n", ic_opmode); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1383 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1384 | /* Set the VIF opmode */ |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 1385 | avp->av_opmode = ic_opmode; |
| 1386 | avp->av_bslot = -1; |
| 1387 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1388 | sc->nvifs++; |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 1389 | |
Felix Fietkau | 364734f | 2010-09-14 20:22:44 +0200 | [diff] [blame] | 1390 | ath9k_set_bssid_mask(hw, vif); |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 1391 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1392 | if (sc->nvifs > 1) |
| 1393 | goto out; /* skip global settings for secondary vif */ |
| 1394 | |
Sujith | b238e90 | 2009-03-03 10:16:56 +0530 | [diff] [blame] | 1395 | if (ic_opmode == NL80211_IFTYPE_AP) { |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1396 | ath9k_hw_set_tsfadjust(ah, 1); |
Sujith | b238e90 | 2009-03-03 10:16:56 +0530 | [diff] [blame] | 1397 | sc->sc_flags |= SC_OP_TSF_RESET; |
| 1398 | } |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 1399 | |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 1400 | /* Set the device opmode */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1401 | ah->opmode = ic_opmode; |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 1402 | |
Vivek Natarajan | 4e30ffa | 2009-01-28 20:53:27 +0530 | [diff] [blame] | 1403 | /* |
| 1404 | * Enable MIB interrupts when there are hardware phy counters. |
| 1405 | * Note we only do this (at the moment) for station mode. |
| 1406 | */ |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1407 | if ((vif->type == NL80211_IFTYPE_STATION) || |
| 1408 | (vif->type == NL80211_IFTYPE_ADHOC) || |
| 1409 | (vif->type == NL80211_IFTYPE_MESH_POINT)) { |
Luis R. Rodriguez | 3448f91 | 2010-04-15 17:38:23 -0400 | [diff] [blame] | 1410 | if (ah->config.enable_ani) |
| 1411 | ah->imask |= ATH9K_INT_MIB; |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1412 | ah->imask |= ATH9K_INT_TSFOOR; |
Sujith | 4af9cf4 | 2009-02-12 10:06:47 +0530 | [diff] [blame] | 1413 | } |
| 1414 | |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1415 | ath9k_hw_set_interrupts(ah, ah->imask); |
Vivek Natarajan | 4e30ffa | 2009-01-28 20:53:27 +0530 | [diff] [blame] | 1416 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1417 | if (vif->type == NL80211_IFTYPE_AP || |
Rajkumar Manoharan | 5f841b4 | 2010-10-27 18:31:15 +0530 | [diff] [blame] | 1418 | vif->type == NL80211_IFTYPE_ADHOC) { |
Vasanthakumar Thiagarajan | 6c3118e | 2010-06-23 06:49:21 -0700 | [diff] [blame] | 1419 | sc->sc_flags |= SC_OP_ANI_RUN; |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 1420 | ath_start_ani(common); |
Vasanthakumar Thiagarajan | 6c3118e | 2010-06-23 06:49:21 -0700 | [diff] [blame] | 1421 | } |
Luis R. Rodriguez | 6f25542 | 2008-10-03 15:45:27 -0700 | [diff] [blame] | 1422 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1423 | out: |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1424 | mutex_unlock(&sc->mutex); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1425 | return ret; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1426 | } |
| 1427 | |
| 1428 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1429 | struct ieee80211_vif *vif) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1430 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1431 | struct ath_wiphy *aphy = hw->priv; |
| 1432 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1433 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1434 | struct ath_vif *avp = (void *)vif->drv_priv; |
Rajkumar Manoharan | 4604778 | 2010-11-26 23:24:31 +0530 | [diff] [blame] | 1435 | bool bs_valid = false; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1436 | int i; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1437 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1438 | ath_dbg(common, ATH_DBG_CONFIG, "Detach Interface\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1439 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1440 | mutex_lock(&sc->mutex); |
| 1441 | |
Luis R. Rodriguez | 6f25542 | 2008-10-03 15:45:27 -0700 | [diff] [blame] | 1442 | /* Stop ANI */ |
Vasanthakumar Thiagarajan | 6c3118e | 2010-06-23 06:49:21 -0700 | [diff] [blame] | 1443 | sc->sc_flags &= ~SC_OP_ANI_RUN; |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 1444 | del_timer_sync(&common->ani.timer); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1445 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1446 | /* Reclaim beacon resources */ |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 1447 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || |
| 1448 | (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || |
| 1449 | (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { |
Luis R. Rodriguez | 5f70a88 | 2009-12-23 20:03:28 -0500 | [diff] [blame] | 1450 | ath9k_ps_wakeup(sc); |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1451 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
Luis R. Rodriguez | 5f70a88 | 2009-12-23 20:03:28 -0500 | [diff] [blame] | 1452 | ath9k_ps_restore(sc); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1453 | } |
| 1454 | |
Felix Fietkau | 7440177 | 2010-01-19 20:51:32 +0100 | [diff] [blame] | 1455 | ath_beacon_return(sc, avp); |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1456 | sc->sc_flags &= ~SC_OP_BEACONS; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1457 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1458 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1459 | if (sc->beacon.bslot[i] == vif) { |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1460 | printk(KERN_DEBUG "%s: vif had allocated beacon " |
| 1461 | "slot\n", __func__); |
| 1462 | sc->beacon.bslot[i] = NULL; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1463 | sc->beacon.bslot_aphy[i] = NULL; |
Rajkumar Manoharan | 4604778 | 2010-11-26 23:24:31 +0530 | [diff] [blame] | 1464 | } else if (sc->beacon.bslot[i]) |
| 1465 | bs_valid = true; |
| 1466 | } |
| 1467 | if (!bs_valid && (sc->sc_ah->imask & ATH9K_INT_SWBA)) { |
| 1468 | /* Disable SWBA interrupt */ |
| 1469 | sc->sc_ah->imask &= ~ATH9K_INT_SWBA; |
| 1470 | ath9k_ps_wakeup(sc); |
| 1471 | ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask); |
| 1472 | ath9k_ps_restore(sc); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1473 | } |
| 1474 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1475 | sc->nvifs--; |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1476 | |
| 1477 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1478 | } |
| 1479 | |
Senthil Balasubramanian | fbab739 | 2010-10-05 20:36:40 +0530 | [diff] [blame] | 1480 | static void ath9k_enable_ps(struct ath_softc *sc) |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1481 | { |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1482 | struct ath_hw *ah = sc->sc_ah; |
| 1483 | |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1484 | sc->ps_enabled = true; |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1485 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { |
| 1486 | if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) { |
| 1487 | ah->imask |= ATH9K_INT_TIM_TIMER; |
| 1488 | ath9k_hw_set_interrupts(ah, ah->imask); |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1489 | } |
Vasanthakumar Thiagarajan | fdf7662 | 2010-05-17 18:57:55 -0700 | [diff] [blame] | 1490 | ath9k_hw_setrxabort(ah, 1); |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1491 | } |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1492 | } |
| 1493 | |
Senthil Balasubramanian | 845d708 | 2010-10-05 20:36:41 +0530 | [diff] [blame] | 1494 | static void ath9k_disable_ps(struct ath_softc *sc) |
| 1495 | { |
| 1496 | struct ath_hw *ah = sc->sc_ah; |
| 1497 | |
| 1498 | sc->ps_enabled = false; |
| 1499 | ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); |
| 1500 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { |
| 1501 | ath9k_hw_setrxabort(ah, 0); |
| 1502 | sc->ps_flags &= ~(PS_WAIT_FOR_BEACON | |
| 1503 | PS_WAIT_FOR_CAB | |
| 1504 | PS_WAIT_FOR_PSPOLL_DATA | |
| 1505 | PS_WAIT_FOR_TX_ACK); |
| 1506 | if (ah->imask & ATH9K_INT_TIM_TIMER) { |
| 1507 | ah->imask &= ~ATH9K_INT_TIM_TIMER; |
| 1508 | ath9k_hw_set_interrupts(ah, ah->imask); |
| 1509 | } |
| 1510 | } |
| 1511 | |
| 1512 | } |
| 1513 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 1514 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1515 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1516 | struct ath_wiphy *aphy = hw->priv; |
| 1517 | struct ath_softc *sc = aphy->sc; |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 1518 | struct ath_hw *ah = sc->sc_ah; |
| 1519 | struct ath_common *common = ath9k_hw_common(ah); |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 1520 | struct ieee80211_conf *conf = &hw->conf; |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1521 | bool disable_radio; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1522 | |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 1523 | mutex_lock(&sc->mutex); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1524 | |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1525 | /* |
| 1526 | * Leave this as the first check because we need to turn on the |
| 1527 | * radio if it was disabled before prior to processing the rest |
| 1528 | * of the changes. Likewise we must only disable the radio towards |
| 1529 | * the end. |
| 1530 | */ |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1531 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1532 | bool enable_radio; |
| 1533 | bool all_wiphys_idle; |
| 1534 | bool idle = !!(conf->flags & IEEE80211_CONF_IDLE); |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1535 | |
| 1536 | spin_lock_bh(&sc->wiphy_lock); |
| 1537 | all_wiphys_idle = ath9k_all_wiphys_idle(sc); |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1538 | ath9k_set_wiphy_idle(aphy, idle); |
| 1539 | |
Felix Fietkau | 1144601 | 2010-04-06 12:05:01 -0700 | [diff] [blame] | 1540 | enable_radio = (!idle && all_wiphys_idle); |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1541 | |
| 1542 | /* |
| 1543 | * After we unlock here its possible another wiphy |
| 1544 | * can be re-renabled so to account for that we will |
| 1545 | * only disable the radio toward the end of this routine |
| 1546 | * if by then all wiphys are still idle. |
| 1547 | */ |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1548 | spin_unlock_bh(&sc->wiphy_lock); |
| 1549 | |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1550 | if (enable_radio) { |
Vivek Natarajan | 1dbfd9d | 2010-01-29 16:56:51 +0530 | [diff] [blame] | 1551 | sc->ps_idle = false; |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 1552 | ath_radio_enable(sc, hw); |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1553 | ath_dbg(common, ATH_DBG_CONFIG, |
| 1554 | "not-idle: enabling radio\n"); |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1555 | } |
| 1556 | } |
| 1557 | |
Luis R. Rodriguez | e7824a5 | 2009-11-24 02:53:25 -0500 | [diff] [blame] | 1558 | /* |
| 1559 | * We just prepare to enable PS. We have to wait until our AP has |
| 1560 | * ACK'd our null data frame to disable RX otherwise we'll ignore |
| 1561 | * those ACKs and end up retransmitting the same null data frames. |
| 1562 | * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode. |
| 1563 | */ |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1564 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
Luis R. Rodriguez | 8ab2cd0 | 2010-09-16 15:12:26 -0400 | [diff] [blame] | 1565 | unsigned long flags; |
| 1566 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
Senthil Balasubramanian | fbab739 | 2010-10-05 20:36:40 +0530 | [diff] [blame] | 1567 | if (conf->flags & IEEE80211_CONF_PS) |
| 1568 | ath9k_enable_ps(sc); |
Senthil Balasubramanian | 845d708 | 2010-10-05 20:36:41 +0530 | [diff] [blame] | 1569 | else |
| 1570 | ath9k_disable_ps(sc); |
Luis R. Rodriguez | 8ab2cd0 | 2010-09-16 15:12:26 -0400 | [diff] [blame] | 1571 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1572 | } |
| 1573 | |
Sujith | 199afd9 | 2010-01-08 10:36:13 +0530 | [diff] [blame] | 1574 | if (changed & IEEE80211_CONF_CHANGE_MONITOR) { |
| 1575 | if (conf->flags & IEEE80211_CONF_MONITOR) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1576 | ath_dbg(common, ATH_DBG_CONFIG, |
| 1577 | "Monitor mode is enabled\n"); |
Rajkumar Manoharan | 5f841b4 | 2010-10-27 18:31:15 +0530 | [diff] [blame] | 1578 | sc->sc_ah->is_monitoring = true; |
| 1579 | } else { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1580 | ath_dbg(common, ATH_DBG_CONFIG, |
| 1581 | "Monitor mode is disabled\n"); |
Rajkumar Manoharan | 5f841b4 | 2010-10-27 18:31:15 +0530 | [diff] [blame] | 1582 | sc->sc_ah->is_monitoring = false; |
Sujith | 199afd9 | 2010-01-08 10:36:13 +0530 | [diff] [blame] | 1583 | } |
| 1584 | } |
| 1585 | |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 1586 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 1587 | struct ieee80211_channel *curchan = hw->conf.channel; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1588 | int pos = curchan->hw_value; |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 1589 | int old_pos = -1; |
| 1590 | unsigned long flags; |
| 1591 | |
| 1592 | if (ah->curchan) |
| 1593 | old_pos = ah->curchan - &ah->channels[0]; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1594 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1595 | aphy->chan_idx = pos; |
| 1596 | aphy->chan_is_ht = conf_is_ht(conf); |
Felix Fietkau | 5ee0865 | 2010-07-31 00:11:59 +0200 | [diff] [blame] | 1597 | if (hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) |
| 1598 | sc->sc_flags |= SC_OP_OFFCHANNEL; |
| 1599 | else |
| 1600 | sc->sc_flags &= ~SC_OP_OFFCHANNEL; |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1601 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1602 | if (aphy->state == ATH_WIPHY_SCAN || |
| 1603 | aphy->state == ATH_WIPHY_ACTIVE) |
| 1604 | ath9k_wiphy_pause_all_forced(sc, aphy); |
| 1605 | else { |
| 1606 | /* |
| 1607 | * Do not change operational channel based on a paused |
| 1608 | * wiphy changes. |
| 1609 | */ |
| 1610 | goto skip_chan_change; |
| 1611 | } |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1612 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1613 | ath_dbg(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
| 1614 | curchan->center_freq); |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 1615 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1616 | /* XXX: remove me eventualy */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1617 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1618 | |
Luis R. Rodriguez | ecf7044 | 2008-12-23 15:58:43 -0800 | [diff] [blame] | 1619 | ath_update_chainmask(sc, conf_is_ht(conf)); |
Sujith | 86060f0 | 2009-01-07 14:25:29 +0530 | [diff] [blame] | 1620 | |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 1621 | /* update survey stats for the old channel before switching */ |
| 1622 | spin_lock_irqsave(&common->cc_lock, flags); |
| 1623 | ath_update_survey_stats(sc); |
| 1624 | spin_unlock_irqrestore(&common->cc_lock, flags); |
| 1625 | |
| 1626 | /* |
| 1627 | * If the operating channel changes, change the survey in-use flags |
| 1628 | * along with it. |
| 1629 | * Reset the survey data for the new channel, unless we're switching |
| 1630 | * back to the operating channel from an off-channel operation. |
| 1631 | */ |
| 1632 | if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && |
| 1633 | sc->cur_survey != &sc->survey[pos]) { |
| 1634 | |
| 1635 | if (sc->cur_survey) |
| 1636 | sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE; |
| 1637 | |
| 1638 | sc->cur_survey = &sc->survey[pos]; |
| 1639 | |
| 1640 | memset(sc->cur_survey, 0, sizeof(struct survey_info)); |
| 1641 | sc->cur_survey->filled |= SURVEY_INFO_IN_USE; |
| 1642 | } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) { |
| 1643 | memset(&sc->survey[pos], 0, sizeof(struct survey_info)); |
| 1644 | } |
| 1645 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1646 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 1647 | ath_err(common, "Unable to set channel\n"); |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 1648 | mutex_unlock(&sc->mutex); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1649 | return -EINVAL; |
| 1650 | } |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 1651 | |
| 1652 | /* |
| 1653 | * The most recent snapshot of channel->noisefloor for the old |
| 1654 | * channel is only available after the hardware reset. Copy it to |
| 1655 | * the survey stats now. |
| 1656 | */ |
| 1657 | if (old_pos >= 0) |
| 1658 | ath_update_survey_nf(sc, old_pos); |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 1659 | } |
Sujith | 86b89ee | 2008-08-07 10:54:57 +0530 | [diff] [blame] | 1660 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1661 | skip_chan_change: |
Luis R. Rodriguez | c9f6a65 | 2010-01-19 14:04:19 -0500 | [diff] [blame] | 1662 | if (changed & IEEE80211_CONF_CHANGE_POWER) { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1663 | sc->config.txpowlimit = 2 * conf->power_level; |
Luis R. Rodriguez | c9f6a65 | 2010-01-19 14:04:19 -0500 | [diff] [blame] | 1664 | ath_update_txpow(sc); |
| 1665 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1666 | |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1667 | spin_lock_bh(&sc->wiphy_lock); |
| 1668 | disable_radio = ath9k_all_wiphys_idle(sc); |
| 1669 | spin_unlock_bh(&sc->wiphy_lock); |
| 1670 | |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1671 | if (disable_radio) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1672 | ath_dbg(common, ATH_DBG_CONFIG, "idle: disabling radio\n"); |
Vivek Natarajan | 1dbfd9d | 2010-01-29 16:56:51 +0530 | [diff] [blame] | 1673 | sc->ps_idle = true; |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 1674 | ath_radio_disable(sc, hw); |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1675 | } |
| 1676 | |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 1677 | mutex_unlock(&sc->mutex); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1678 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1679 | return 0; |
| 1680 | } |
| 1681 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1682 | #define SUPPORTED_FILTERS \ |
| 1683 | (FIF_PROMISC_IN_BSS | \ |
| 1684 | FIF_ALLMULTI | \ |
| 1685 | FIF_CONTROL | \ |
Luis R. Rodriguez | af6a3fc | 2009-08-08 21:55:16 -0400 | [diff] [blame] | 1686 | FIF_PSPOLL | \ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1687 | FIF_OTHER_BSS | \ |
| 1688 | FIF_BCN_PRBRESP_PROMISC | \ |
Jouni Malinen | 9c1d8e4 | 2010-10-13 17:29:31 +0300 | [diff] [blame] | 1689 | FIF_PROBE_REQ | \ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1690 | FIF_FCSFAIL) |
| 1691 | |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 1692 | /* FIXME: sc->sc_full_reset ? */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1693 | static void ath9k_configure_filter(struct ieee80211_hw *hw, |
| 1694 | unsigned int changed_flags, |
| 1695 | unsigned int *total_flags, |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1696 | u64 multicast) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1697 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1698 | struct ath_wiphy *aphy = hw->priv; |
| 1699 | struct ath_softc *sc = aphy->sc; |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 1700 | u32 rfilt; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1701 | |
| 1702 | changed_flags &= SUPPORTED_FILTERS; |
| 1703 | *total_flags &= SUPPORTED_FILTERS; |
| 1704 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1705 | sc->rx.rxfilter = *total_flags; |
Jouni Malinen | aa68aea | 2009-05-19 17:01:41 +0300 | [diff] [blame] | 1706 | ath9k_ps_wakeup(sc); |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 1707 | rfilt = ath_calcrxfilter(sc); |
| 1708 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); |
Jouni Malinen | aa68aea | 2009-05-19 17:01:41 +0300 | [diff] [blame] | 1709 | ath9k_ps_restore(sc); |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 1710 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1711 | ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, |
| 1712 | "Set HW RX filter: 0x%x\n", rfilt); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1713 | } |
| 1714 | |
Johannes Berg | 4ca7786 | 2010-02-19 19:06:56 +0100 | [diff] [blame] | 1715 | static int ath9k_sta_add(struct ieee80211_hw *hw, |
| 1716 | struct ieee80211_vif *vif, |
| 1717 | struct ieee80211_sta *sta) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1718 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1719 | struct ath_wiphy *aphy = hw->priv; |
| 1720 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1721 | |
Johannes Berg | 4ca7786 | 2010-02-19 19:06:56 +0100 | [diff] [blame] | 1722 | ath_node_attach(sc, sta); |
| 1723 | |
| 1724 | return 0; |
| 1725 | } |
| 1726 | |
| 1727 | static int ath9k_sta_remove(struct ieee80211_hw *hw, |
| 1728 | struct ieee80211_vif *vif, |
| 1729 | struct ieee80211_sta *sta) |
| 1730 | { |
| 1731 | struct ath_wiphy *aphy = hw->priv; |
| 1732 | struct ath_softc *sc = aphy->sc; |
| 1733 | |
| 1734 | ath_node_detach(sc, sta); |
| 1735 | |
| 1736 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1737 | } |
| 1738 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1739 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1740 | const struct ieee80211_tx_queue_params *params) |
| 1741 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1742 | struct ath_wiphy *aphy = hw->priv; |
| 1743 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1744 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 1745 | struct ath_txq *txq; |
Sujith | ea9880f | 2008-08-07 10:53:10 +0530 | [diff] [blame] | 1746 | struct ath9k_tx_queue_info qi; |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 1747 | int ret = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1748 | |
| 1749 | if (queue >= WME_NUM_AC) |
| 1750 | return 0; |
| 1751 | |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 1752 | txq = sc->tx.txq_map[queue]; |
| 1753 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1754 | mutex_lock(&sc->mutex); |
| 1755 | |
Sujith | 1ffb061 | 2009-03-30 15:28:46 +0530 | [diff] [blame] | 1756 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
| 1757 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1758 | qi.tqi_aifs = params->aifs; |
| 1759 | qi.tqi_cwmin = params->cw_min; |
| 1760 | qi.tqi_cwmax = params->cw_max; |
| 1761 | qi.tqi_burstTime = params->txop; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1762 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1763 | ath_dbg(common, ATH_DBG_CONFIG, |
| 1764 | "Configure tx [queue/halq] [%d/%d], aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
| 1765 | queue, txq->axq_qnum, params->aifs, params->cw_min, |
| 1766 | params->cw_max, params->txop); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1767 | |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 1768 | ret = ath_txq_update(sc, txq->axq_qnum, &qi); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1769 | if (ret) |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 1770 | ath_err(common, "TXQ Update failed\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1771 | |
Vivek Natarajan | 94db293 | 2009-11-25 12:01:54 +0530 | [diff] [blame] | 1772 | if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) |
Felix Fietkau | 066dae9 | 2010-11-07 14:59:39 +0100 | [diff] [blame] | 1773 | if (queue == WME_AC_BE && !ret) |
Vivek Natarajan | 94db293 | 2009-11-25 12:01:54 +0530 | [diff] [blame] | 1774 | ath_beaconq_config(sc); |
| 1775 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1776 | mutex_unlock(&sc->mutex); |
| 1777 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1778 | return ret; |
| 1779 | } |
| 1780 | |
| 1781 | static int ath9k_set_key(struct ieee80211_hw *hw, |
| 1782 | enum set_key_cmd cmd, |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 1783 | struct ieee80211_vif *vif, |
| 1784 | struct ieee80211_sta *sta, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1785 | struct ieee80211_key_conf *key) |
| 1786 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1787 | struct ath_wiphy *aphy = hw->priv; |
| 1788 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1789 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1790 | int ret = 0; |
| 1791 | |
Jouni Malinen | b3bd89c | 2009-02-24 13:42:01 +0200 | [diff] [blame] | 1792 | if (modparam_nohwcrypt) |
| 1793 | return -ENOSPC; |
| 1794 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1795 | mutex_lock(&sc->mutex); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1796 | ath9k_ps_wakeup(sc); |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1797 | ath_dbg(common, ATH_DBG_CONFIG, "Set HW Key\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1798 | |
| 1799 | switch (cmd) { |
| 1800 | case SET_KEY: |
Bruno Randolf | 040e539 | 2010-09-08 16:05:04 +0900 | [diff] [blame] | 1801 | ret = ath_key_config(common, vif, sta, key); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 1802 | if (ret >= 0) { |
| 1803 | key->hw_key_idx = ret; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1804 | /* push IV and Michael MIC generation to stack */ |
| 1805 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
Johannes Berg | 97359d1 | 2010-08-10 09:46:38 +0200 | [diff] [blame] | 1806 | if (key->cipher == WLAN_CIPHER_SUITE_TKIP) |
Senthil Balasubramanian | 1b96175 | 2008-09-01 19:45:21 +0530 | [diff] [blame] | 1807 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
Johannes Berg | 97359d1 | 2010-08-10 09:46:38 +0200 | [diff] [blame] | 1808 | if (sc->sc_ah->sw_mgmt_crypto && |
| 1809 | key->cipher == WLAN_CIPHER_SUITE_CCMP) |
Jouni Malinen | 0ced0e1 | 2009-01-08 13:32:13 +0200 | [diff] [blame] | 1810 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 1811 | ret = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1812 | } |
| 1813 | break; |
| 1814 | case DISABLE_KEY: |
Bruno Randolf | 040e539 | 2010-09-08 16:05:04 +0900 | [diff] [blame] | 1815 | ath_key_delete(common, key); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1816 | break; |
| 1817 | default: |
| 1818 | ret = -EINVAL; |
| 1819 | } |
| 1820 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1821 | ath9k_ps_restore(sc); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1822 | mutex_unlock(&sc->mutex); |
| 1823 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1824 | return ret; |
| 1825 | } |
| 1826 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1827 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
| 1828 | struct ieee80211_vif *vif, |
| 1829 | struct ieee80211_bss_conf *bss_conf, |
| 1830 | u32 changed) |
| 1831 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1832 | struct ath_wiphy *aphy = hw->priv; |
| 1833 | struct ath_softc *sc = aphy->sc; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1834 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 1835 | struct ath_common *common = ath9k_hw_common(ah); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1836 | struct ath_vif *avp = (void *)vif->drv_priv; |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 1837 | int slottime; |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1838 | int error; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1839 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1840 | mutex_lock(&sc->mutex); |
| 1841 | |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1842 | if (changed & BSS_CHANGED_BSSID) { |
| 1843 | /* Set BSSID */ |
| 1844 | memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); |
| 1845 | memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN); |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 1846 | common->curaid = 0; |
Luis R. Rodriguez | f2b2143 | 2009-09-10 08:50:20 -0700 | [diff] [blame] | 1847 | ath9k_hw_write_associd(ah); |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1848 | |
| 1849 | /* Set aggregation protection mode parameters */ |
| 1850 | sc->config.ath_aggr_prot = 0; |
| 1851 | |
| 1852 | /* Only legacy IBSS for now */ |
| 1853 | if (vif->type == NL80211_IFTYPE_ADHOC) |
| 1854 | ath_update_chainmask(sc, 0); |
| 1855 | |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1856 | ath_dbg(common, ATH_DBG_CONFIG, "BSSID: %pM aid: 0x%x\n", |
| 1857 | common->curbssid, common->curaid); |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1858 | |
| 1859 | /* need to reconfigure the beacon */ |
| 1860 | sc->sc_flags &= ~SC_OP_BEACONS ; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1861 | } |
| 1862 | |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1863 | /* Enable transmission of beacons (AP, IBSS, MESH) */ |
| 1864 | if ((changed & BSS_CHANGED_BEACON) || |
| 1865 | ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon)) { |
| 1866 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
| 1867 | error = ath_beacon_alloc(aphy, vif); |
| 1868 | if (!error) |
| 1869 | ath_beacon_config(sc, vif); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1870 | } |
| 1871 | |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 1872 | if (changed & BSS_CHANGED_ERP_SLOT) { |
| 1873 | if (bss_conf->use_short_slot) |
| 1874 | slottime = 9; |
| 1875 | else |
| 1876 | slottime = 20; |
| 1877 | if (vif->type == NL80211_IFTYPE_AP) { |
| 1878 | /* |
| 1879 | * Defer update, so that connected stations can adjust |
| 1880 | * their settings at the same time. |
| 1881 | * See beacon.c for more details |
| 1882 | */ |
| 1883 | sc->beacon.slottime = slottime; |
| 1884 | sc->beacon.updateslot = UPDATE; |
| 1885 | } else { |
| 1886 | ah->slottime = slottime; |
| 1887 | ath9k_hw_init_global_settings(ah); |
| 1888 | } |
| 1889 | } |
| 1890 | |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1891 | /* Disable transmission of beacons */ |
| 1892 | if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) |
| 1893 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
| 1894 | |
| 1895 | if (changed & BSS_CHANGED_BEACON_INT) { |
| 1896 | sc->beacon_interval = bss_conf->beacon_int; |
| 1897 | /* |
| 1898 | * In case of AP mode, the HW TSF has to be reset |
| 1899 | * when the beacon interval changes. |
| 1900 | */ |
| 1901 | if (vif->type == NL80211_IFTYPE_AP) { |
| 1902 | sc->sc_flags |= SC_OP_TSF_RESET; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1903 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1904 | error = ath_beacon_alloc(aphy, vif); |
| 1905 | if (!error) |
| 1906 | ath_beacon_config(sc, vif); |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1907 | } else { |
| 1908 | ath_beacon_config(sc, vif); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1909 | } |
| 1910 | } |
| 1911 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1912 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1913 | ath_dbg(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
| 1914 | bss_conf->use_short_preamble); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1915 | if (bss_conf->use_short_preamble) |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1916 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1917 | else |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1918 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1919 | } |
| 1920 | |
| 1921 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1922 | ath_dbg(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
| 1923 | bss_conf->use_cts_prot); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1924 | if (bss_conf->use_cts_prot && |
| 1925 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1926 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1927 | else |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1928 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1929 | } |
| 1930 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1931 | if (changed & BSS_CHANGED_ASSOC) { |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1932 | ath_dbg(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1933 | bss_conf->assoc); |
Felix Fietkau | 9fa23e1 | 2010-10-15 20:03:31 +0200 | [diff] [blame] | 1934 | ath9k_bss_assoc_info(sc, hw, vif, bss_conf); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1935 | } |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1936 | |
| 1937 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1938 | } |
| 1939 | |
| 1940 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
| 1941 | { |
| 1942 | u64 tsf; |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1943 | struct ath_wiphy *aphy = hw->priv; |
| 1944 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1945 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1946 | mutex_lock(&sc->mutex); |
| 1947 | tsf = ath9k_hw_gettsf64(sc->sc_ah); |
| 1948 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1949 | |
| 1950 | return tsf; |
| 1951 | } |
| 1952 | |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 1953 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
| 1954 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1955 | struct ath_wiphy *aphy = hw->priv; |
| 1956 | struct ath_softc *sc = aphy->sc; |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 1957 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1958 | mutex_lock(&sc->mutex); |
| 1959 | ath9k_hw_settsf64(sc->sc_ah, tsf); |
| 1960 | mutex_unlock(&sc->mutex); |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 1961 | } |
| 1962 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1963 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
| 1964 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1965 | struct ath_wiphy *aphy = hw->priv; |
| 1966 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1967 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1968 | mutex_lock(&sc->mutex); |
Luis R. Rodriguez | 21526d5 | 2009-09-09 20:05:39 -0700 | [diff] [blame] | 1969 | |
| 1970 | ath9k_ps_wakeup(sc); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1971 | ath9k_hw_reset_tsf(sc->sc_ah); |
Luis R. Rodriguez | 21526d5 | 2009-09-09 20:05:39 -0700 | [diff] [blame] | 1972 | ath9k_ps_restore(sc); |
| 1973 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1974 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1975 | } |
| 1976 | |
| 1977 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 1978 | struct ieee80211_vif *vif, |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1979 | enum ieee80211_ampdu_mlme_action action, |
| 1980 | struct ieee80211_sta *sta, |
| 1981 | u16 tid, u16 *ssn) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1982 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1983 | struct ath_wiphy *aphy = hw->priv; |
| 1984 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1985 | int ret = 0; |
| 1986 | |
Johannes Berg | 85ad181 | 2010-06-10 10:21:49 +0200 | [diff] [blame] | 1987 | local_bh_disable(); |
| 1988 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1989 | switch (action) { |
| 1990 | case IEEE80211_AMPDU_RX_START: |
Sujith | dca3edb | 2008-10-29 10:19:01 +0530 | [diff] [blame] | 1991 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
| 1992 | ret = -ENOTSUPP; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1993 | break; |
| 1994 | case IEEE80211_AMPDU_RX_STOP: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1995 | break; |
| 1996 | case IEEE80211_AMPDU_TX_START: |
Felix Fietkau | 71a3bf3 | 2010-11-14 15:20:11 +0100 | [diff] [blame] | 1997 | if (!(sc->sc_flags & SC_OP_TXAGGR)) |
| 1998 | return -EOPNOTSUPP; |
| 1999 | |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 2000 | ath9k_ps_wakeup(sc); |
Felix Fietkau | 231c3a1 | 2010-09-20 19:35:28 +0200 | [diff] [blame] | 2001 | ret = ath_tx_aggr_start(sc, sta, tid, ssn); |
| 2002 | if (!ret) |
| 2003 | ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 2004 | ath9k_ps_restore(sc); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2005 | break; |
| 2006 | case IEEE80211_AMPDU_TX_STOP: |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 2007 | ath9k_ps_wakeup(sc); |
Sujith | f83da96 | 2009-07-23 15:32:37 +0530 | [diff] [blame] | 2008 | ath_tx_aggr_stop(sc, sta, tid); |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 2009 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 2010 | ath9k_ps_restore(sc); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2011 | break; |
Johannes Berg | b172023 | 2009-03-23 17:28:39 +0100 | [diff] [blame] | 2012 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 2013 | ath9k_ps_wakeup(sc); |
Sujith | 8469cde | 2008-10-29 10:19:28 +0530 | [diff] [blame] | 2014 | ath_tx_aggr_resume(sc, sta, tid); |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 2015 | ath9k_ps_restore(sc); |
Sujith | 8469cde | 2008-10-29 10:19:28 +0530 | [diff] [blame] | 2016 | break; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2017 | default: |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 2018 | ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2019 | } |
| 2020 | |
Johannes Berg | 85ad181 | 2010-06-10 10:21:49 +0200 | [diff] [blame] | 2021 | local_bh_enable(); |
| 2022 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2023 | return ret; |
| 2024 | } |
| 2025 | |
Benoit Papillault | 62dad5b | 2010-04-28 00:08:24 +0200 | [diff] [blame] | 2026 | static int ath9k_get_survey(struct ieee80211_hw *hw, int idx, |
| 2027 | struct survey_info *survey) |
| 2028 | { |
| 2029 | struct ath_wiphy *aphy = hw->priv; |
| 2030 | struct ath_softc *sc = aphy->sc; |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 2031 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Felix Fietkau | 39162db | 2010-09-29 19:12:06 +0200 | [diff] [blame] | 2032 | struct ieee80211_supported_band *sband; |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 2033 | struct ieee80211_channel *chan; |
| 2034 | unsigned long flags; |
| 2035 | int pos; |
| 2036 | |
| 2037 | spin_lock_irqsave(&common->cc_lock, flags); |
| 2038 | if (idx == 0) |
| 2039 | ath_update_survey_stats(sc); |
Benoit Papillault | 62dad5b | 2010-04-28 00:08:24 +0200 | [diff] [blame] | 2040 | |
Felix Fietkau | 39162db | 2010-09-29 19:12:06 +0200 | [diff] [blame] | 2041 | sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ]; |
| 2042 | if (sband && idx >= sband->n_channels) { |
| 2043 | idx -= sband->n_channels; |
| 2044 | sband = NULL; |
| 2045 | } |
Benoit Papillault | 62dad5b | 2010-04-28 00:08:24 +0200 | [diff] [blame] | 2046 | |
Felix Fietkau | 39162db | 2010-09-29 19:12:06 +0200 | [diff] [blame] | 2047 | if (!sband) |
| 2048 | sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ]; |
| 2049 | |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 2050 | if (!sband || idx >= sband->n_channels) { |
| 2051 | spin_unlock_irqrestore(&common->cc_lock, flags); |
| 2052 | return -ENOENT; |
Felix Fietkau | 4f1a5a4 | 2010-09-29 17:15:28 +0200 | [diff] [blame] | 2053 | } |
Benoit Papillault | 62dad5b | 2010-04-28 00:08:24 +0200 | [diff] [blame] | 2054 | |
Felix Fietkau | 3430098 | 2010-10-10 18:21:52 +0200 | [diff] [blame] | 2055 | chan = &sband->channels[idx]; |
| 2056 | pos = chan->hw_value; |
| 2057 | memcpy(survey, &sc->survey[pos], sizeof(*survey)); |
| 2058 | survey->channel = chan; |
| 2059 | spin_unlock_irqrestore(&common->cc_lock, flags); |
| 2060 | |
Benoit Papillault | 62dad5b | 2010-04-28 00:08:24 +0200 | [diff] [blame] | 2061 | return 0; |
| 2062 | } |
| 2063 | |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2064 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
| 2065 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2066 | struct ath_wiphy *aphy = hw->priv; |
| 2067 | struct ath_softc *sc = aphy->sc; |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2068 | |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 2069 | mutex_lock(&sc->mutex); |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2070 | if (ath9k_wiphy_scanning(sc)) { |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2071 | /* |
Luis R. Rodriguez | 3088833 | 2010-07-27 16:33:06 -0400 | [diff] [blame] | 2072 | * There is a race here in mac80211 but fixing it requires |
| 2073 | * we revisit how we handle the scan complete callback. |
| 2074 | * After mac80211 fixes we will not have configured hardware |
| 2075 | * to the home channel nor would we have configured the RX |
| 2076 | * filter yet. |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2077 | */ |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 2078 | mutex_unlock(&sc->mutex); |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2079 | return; |
| 2080 | } |
| 2081 | |
| 2082 | aphy->state = ATH_WIPHY_SCAN; |
| 2083 | ath9k_wiphy_pause_all_forced(sc, aphy); |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 2084 | mutex_unlock(&sc->mutex); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2085 | } |
| 2086 | |
Luis R. Rodriguez | 3088833 | 2010-07-27 16:33:06 -0400 | [diff] [blame] | 2087 | /* |
| 2088 | * XXX: this requires a revisit after the driver |
| 2089 | * scan_complete gets moved to another place/removed in mac80211. |
| 2090 | */ |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2091 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) |
| 2092 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2093 | struct ath_wiphy *aphy = hw->priv; |
| 2094 | struct ath_softc *sc = aphy->sc; |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2095 | |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 2096 | mutex_lock(&sc->mutex); |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2097 | aphy->state = ATH_WIPHY_ACTIVE; |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 2098 | mutex_unlock(&sc->mutex); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2099 | } |
| 2100 | |
Felix Fietkau | e239d85 | 2010-01-15 02:34:58 +0100 | [diff] [blame] | 2101 | static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) |
| 2102 | { |
| 2103 | struct ath_wiphy *aphy = hw->priv; |
| 2104 | struct ath_softc *sc = aphy->sc; |
| 2105 | struct ath_hw *ah = sc->sc_ah; |
| 2106 | |
| 2107 | mutex_lock(&sc->mutex); |
| 2108 | ah->coverage_class = coverage_class; |
| 2109 | ath9k_hw_init_global_settings(ah); |
| 2110 | mutex_unlock(&sc->mutex); |
| 2111 | } |
| 2112 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2113 | struct ieee80211_ops ath9k_ops = { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2114 | .tx = ath9k_tx, |
| 2115 | .start = ath9k_start, |
| 2116 | .stop = ath9k_stop, |
| 2117 | .add_interface = ath9k_add_interface, |
| 2118 | .remove_interface = ath9k_remove_interface, |
| 2119 | .config = ath9k_config, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2120 | .configure_filter = ath9k_configure_filter, |
Johannes Berg | 4ca7786 | 2010-02-19 19:06:56 +0100 | [diff] [blame] | 2121 | .sta_add = ath9k_sta_add, |
| 2122 | .sta_remove = ath9k_sta_remove, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2123 | .conf_tx = ath9k_conf_tx, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2124 | .bss_info_changed = ath9k_bss_info_changed, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2125 | .set_key = ath9k_set_key, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2126 | .get_tsf = ath9k_get_tsf, |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2127 | .set_tsf = ath9k_set_tsf, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2128 | .reset_tsf = ath9k_reset_tsf, |
Johannes Berg | 4233df6 | 2008-10-13 13:35:05 +0200 | [diff] [blame] | 2129 | .ampdu_action = ath9k_ampdu_action, |
Benoit Papillault | 62dad5b | 2010-04-28 00:08:24 +0200 | [diff] [blame] | 2130 | .get_survey = ath9k_get_survey, |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2131 | .sw_scan_start = ath9k_sw_scan_start, |
| 2132 | .sw_scan_complete = ath9k_sw_scan_complete, |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 2133 | .rfkill_poll = ath9k_rfkill_poll_state, |
Felix Fietkau | e239d85 | 2010-01-15 02:34:58 +0100 | [diff] [blame] | 2134 | .set_coverage_class = ath9k_set_coverage_class, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2135 | }; |