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 | |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 21 | static void ath_cache_conf_rate(struct ath_softc *sc, |
| 22 | struct ieee80211_conf *conf) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 23 | { |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 24 | switch (conf->channel->band) { |
| 25 | case IEEE80211_BAND_2GHZ: |
| 26 | if (conf_is_ht20(conf)) |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 27 | sc->cur_rate_mode = ATH9K_MODE_11NG_HT20; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 28 | else if (conf_is_ht40_minus(conf)) |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 29 | sc->cur_rate_mode = ATH9K_MODE_11NG_HT40MINUS; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 30 | else if (conf_is_ht40_plus(conf)) |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 31 | sc->cur_rate_mode = ATH9K_MODE_11NG_HT40PLUS; |
Luis R. Rodriguez | 9674225 | 2008-12-23 15:58:38 -0800 | [diff] [blame] | 32 | else |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 33 | sc->cur_rate_mode = ATH9K_MODE_11G; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 34 | break; |
| 35 | case IEEE80211_BAND_5GHZ: |
| 36 | if (conf_is_ht20(conf)) |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 37 | sc->cur_rate_mode = ATH9K_MODE_11NA_HT20; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 38 | else if (conf_is_ht40_minus(conf)) |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 39 | sc->cur_rate_mode = ATH9K_MODE_11NA_HT40MINUS; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 40 | else if (conf_is_ht40_plus(conf)) |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 41 | sc->cur_rate_mode = ATH9K_MODE_11NA_HT40PLUS; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 42 | else |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 43 | sc->cur_rate_mode = ATH9K_MODE_11A; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 44 | break; |
| 45 | default: |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 46 | BUG_ON(1); |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 47 | break; |
| 48 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 49 | } |
| 50 | |
| 51 | static void ath_update_txpow(struct ath_softc *sc) |
| 52 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 53 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 54 | u32 txpow; |
| 55 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 56 | if (sc->curtxpow != sc->config.txpowlimit) { |
| 57 | ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 58 | /* read back in case value is clamped */ |
| 59 | ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 60 | sc->curtxpow = txpow; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 61 | } |
| 62 | } |
| 63 | |
| 64 | static u8 parse_mpdudensity(u8 mpdudensity) |
| 65 | { |
| 66 | /* |
| 67 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": |
| 68 | * 0 for no restriction |
| 69 | * 1 for 1/4 us |
| 70 | * 2 for 1/2 us |
| 71 | * 3 for 1 us |
| 72 | * 4 for 2 us |
| 73 | * 5 for 4 us |
| 74 | * 6 for 8 us |
| 75 | * 7 for 16 us |
| 76 | */ |
| 77 | switch (mpdudensity) { |
| 78 | case 0: |
| 79 | return 0; |
| 80 | case 1: |
| 81 | case 2: |
| 82 | case 3: |
| 83 | /* Our lower layer calculations limit our precision to |
| 84 | 1 microsecond */ |
| 85 | return 1; |
| 86 | case 4: |
| 87 | return 2; |
| 88 | case 5: |
| 89 | return 4; |
| 90 | case 6: |
| 91 | return 8; |
| 92 | case 7: |
| 93 | return 16; |
| 94 | default: |
| 95 | return 0; |
| 96 | } |
| 97 | } |
| 98 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 99 | static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, |
| 100 | struct ieee80211_hw *hw) |
| 101 | { |
| 102 | struct ieee80211_channel *curchan = hw->conf.channel; |
| 103 | struct ath9k_channel *channel; |
| 104 | u8 chan_idx; |
| 105 | |
| 106 | chan_idx = curchan->hw_value; |
| 107 | channel = &sc->sc_ah->channels[chan_idx]; |
| 108 | ath9k_update_ichannel(sc, hw, channel); |
| 109 | return channel; |
| 110 | } |
| 111 | |
Sujith | 5562420 | 2010-01-08 10:36:02 +0530 | [diff] [blame] | 112 | 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] | 113 | { |
| 114 | unsigned long flags; |
| 115 | bool ret; |
| 116 | |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 117 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
| 118 | ret = ath9k_hw_setpower(sc->sc_ah, mode); |
| 119 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); |
Luis R. Rodriguez | 8c77a56 | 2009-09-09 21:02:34 -0700 | [diff] [blame] | 120 | |
| 121 | return ret; |
| 122 | } |
| 123 | |
Luis R. Rodriguez | a91d75ae | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 124 | void ath9k_ps_wakeup(struct ath_softc *sc) |
| 125 | { |
| 126 | unsigned long flags; |
| 127 | |
| 128 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
| 129 | if (++sc->ps_usecount != 1) |
| 130 | goto unlock; |
| 131 | |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 132 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
Luis R. Rodriguez | a91d75ae | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 133 | |
| 134 | unlock: |
| 135 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); |
| 136 | } |
| 137 | |
| 138 | void ath9k_ps_restore(struct ath_softc *sc) |
| 139 | { |
| 140 | unsigned long flags; |
| 141 | |
| 142 | spin_lock_irqsave(&sc->sc_pm_lock, flags); |
| 143 | if (--sc->ps_usecount != 0) |
| 144 | goto unlock; |
| 145 | |
Vivek Natarajan | 1dbfd9d | 2010-01-29 16:56:51 +0530 | [diff] [blame] | 146 | if (sc->ps_idle) |
| 147 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP); |
| 148 | else if (sc->ps_enabled && |
| 149 | !(sc->ps_flags & (PS_WAIT_FOR_BEACON | |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 150 | PS_WAIT_FOR_CAB | |
| 151 | PS_WAIT_FOR_PSPOLL_DATA | |
| 152 | PS_WAIT_FOR_TX_ACK))) |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 153 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); |
Luis R. Rodriguez | a91d75ae | 2009-09-09 20:29:18 -0700 | [diff] [blame] | 154 | |
| 155 | unlock: |
| 156 | spin_unlock_irqrestore(&sc->sc_pm_lock, flags); |
| 157 | } |
| 158 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 159 | /* |
| 160 | * Set/change channels. If the channel is really being changed, it's done |
| 161 | * by reseting the chip. To accomplish this we must first cleanup any pending |
| 162 | * DMA, then restart stuff. |
| 163 | */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 164 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, |
| 165 | struct ath9k_channel *hchan) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 166 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 167 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 168 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 169 | struct ieee80211_conf *conf = &common->hw->conf; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 170 | bool fastcc = true, stopped; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 171 | struct ieee80211_channel *channel = hw->conf.channel; |
| 172 | int r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 173 | |
| 174 | if (sc->sc_flags & SC_OP_INVALID) |
| 175 | return -EIO; |
| 176 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 177 | ath9k_ps_wakeup(sc); |
| 178 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 179 | /* |
| 180 | * This is only performed if the channel settings have |
| 181 | * actually changed. |
| 182 | * |
| 183 | * To switch channels clear any pending DMA operations; |
| 184 | * wait long enough for the RX fifo to drain, reset the |
| 185 | * hardware at the new frequency, and then re-enable |
| 186 | * the relevant bits of the h/w. |
| 187 | */ |
| 188 | ath9k_hw_set_interrupts(ah, 0); |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 189 | ath_drain_all_txq(sc, false); |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 190 | stopped = ath_stoprecv(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 191 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 192 | /* XXX: do not flush receive queue here. We don't want |
| 193 | * to flush data frames already in queue because of |
| 194 | * changing channel. */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 195 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 196 | if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET)) |
| 197 | fastcc = false; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 198 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 199 | ath_print(common, ATH_DBG_CONFIG, |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 200 | "(%u MHz) -> (%u MHz), conf_is_ht40: %d\n", |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 201 | sc->sc_ah->curchan->channel, |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 202 | channel->center_freq, conf_is_ht40(conf)); |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 203 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 204 | spin_lock_bh(&sc->sc_resetlock); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 205 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 206 | r = ath9k_hw_reset(ah, hchan, fastcc); |
| 207 | if (r) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 208 | ath_print(common, ATH_DBG_FATAL, |
Pavel Roskin | f643e51 | 2010-01-29 17:22:12 -0500 | [diff] [blame] | 209 | "Unable to reset channel (%u MHz), " |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 210 | "reset status %d\n", |
| 211 | channel->center_freq, r); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 212 | spin_unlock_bh(&sc->sc_resetlock); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 213 | goto ps_restore; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 214 | } |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 215 | spin_unlock_bh(&sc->sc_resetlock); |
| 216 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 217 | sc->sc_flags &= ~SC_OP_FULL_RESET; |
| 218 | |
| 219 | if (ath_startrecv(sc) != 0) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 220 | ath_print(common, ATH_DBG_FATAL, |
| 221 | "Unable to restart recv logic\n"); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 222 | r = -EIO; |
| 223 | goto ps_restore; |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 224 | } |
| 225 | |
| 226 | ath_cache_conf_rate(sc, &hw->conf); |
| 227 | ath_update_txpow(sc); |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 228 | ath9k_hw_set_interrupts(ah, ah->imask); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 229 | |
| 230 | ps_restore: |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 231 | ath9k_ps_restore(sc); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 232 | return r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 233 | } |
| 234 | |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame^] | 235 | static void ath_paprd_activate(struct ath_softc *sc) |
| 236 | { |
| 237 | struct ath_hw *ah = sc->sc_ah; |
| 238 | int chain; |
| 239 | |
| 240 | if (!ah->curchan->paprd_done) |
| 241 | return; |
| 242 | |
| 243 | ath9k_ps_wakeup(sc); |
| 244 | for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { |
| 245 | if (!(ah->caps.tx_chainmask & BIT(chain))) |
| 246 | continue; |
| 247 | |
| 248 | ar9003_paprd_populate_single_table(ah, ah->curchan, chain); |
| 249 | } |
| 250 | |
| 251 | ar9003_paprd_enable(ah, true); |
| 252 | ath9k_ps_restore(sc); |
| 253 | } |
| 254 | |
| 255 | void ath_paprd_calibrate(struct work_struct *work) |
| 256 | { |
| 257 | struct ath_softc *sc = container_of(work, struct ath_softc, paprd_work); |
| 258 | struct ieee80211_hw *hw = sc->hw; |
| 259 | struct ath_hw *ah = sc->sc_ah; |
| 260 | struct ieee80211_hdr *hdr; |
| 261 | struct sk_buff *skb = NULL; |
| 262 | struct ieee80211_tx_info *tx_info; |
| 263 | int band = hw->conf.channel->band; |
| 264 | struct ieee80211_supported_band *sband = &sc->sbands[band]; |
| 265 | struct ath_tx_control txctl; |
| 266 | int qnum, ftype; |
| 267 | int chain_ok = 0; |
| 268 | int chain; |
| 269 | int len = 1800; |
| 270 | int time_left; |
| 271 | int i; |
| 272 | |
| 273 | ath9k_ps_wakeup(sc); |
| 274 | skb = alloc_skb(len, GFP_KERNEL); |
| 275 | if (!skb) |
| 276 | return; |
| 277 | |
| 278 | tx_info = IEEE80211_SKB_CB(skb); |
| 279 | |
| 280 | skb_put(skb, len); |
| 281 | memset(skb->data, 0, len); |
| 282 | hdr = (struct ieee80211_hdr *)skb->data; |
| 283 | ftype = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC; |
| 284 | hdr->frame_control = cpu_to_le16(ftype); |
| 285 | hdr->duration_id = 10; |
| 286 | memcpy(hdr->addr1, hw->wiphy->perm_addr, ETH_ALEN); |
| 287 | memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN); |
| 288 | memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN); |
| 289 | |
| 290 | memset(&txctl, 0, sizeof(txctl)); |
| 291 | qnum = sc->tx.hwq_map[WME_AC_BE]; |
| 292 | txctl.txq = &sc->tx.txq[qnum]; |
| 293 | |
| 294 | ar9003_paprd_init_table(ah); |
| 295 | for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { |
| 296 | if (!(ah->caps.tx_chainmask & BIT(chain))) |
| 297 | continue; |
| 298 | |
| 299 | chain_ok = 0; |
| 300 | memset(tx_info, 0, sizeof(*tx_info)); |
| 301 | tx_info->band = band; |
| 302 | |
| 303 | for (i = 0; i < 4; i++) { |
| 304 | tx_info->control.rates[i].idx = sband->n_bitrates - 1; |
| 305 | tx_info->control.rates[i].count = 6; |
| 306 | } |
| 307 | |
| 308 | init_completion(&sc->paprd_complete); |
| 309 | ar9003_paprd_setup_gain_table(ah, chain); |
| 310 | txctl.paprd = BIT(chain); |
| 311 | if (ath_tx_start(hw, skb, &txctl) != 0) |
| 312 | break; |
| 313 | |
| 314 | time_left = wait_for_completion_timeout(&sc->paprd_complete, |
| 315 | 100); |
| 316 | if (!time_left) { |
| 317 | ath_print(ath9k_hw_common(ah), ATH_DBG_CALIBRATE, |
| 318 | "Timeout waiting for paprd training on " |
| 319 | "TX chain %d\n", |
| 320 | chain); |
| 321 | break; |
| 322 | } |
| 323 | |
| 324 | if (!ar9003_paprd_is_done(ah)) |
| 325 | break; |
| 326 | |
| 327 | if (ar9003_paprd_create_curve(ah, ah->curchan, chain) != 0) |
| 328 | break; |
| 329 | |
| 330 | chain_ok = 1; |
| 331 | } |
| 332 | kfree_skb(skb); |
| 333 | |
| 334 | if (chain_ok) { |
| 335 | ah->curchan->paprd_done = true; |
| 336 | ath_paprd_activate(sc); |
| 337 | } |
| 338 | |
| 339 | ath9k_ps_restore(sc); |
| 340 | } |
| 341 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 342 | /* |
| 343 | * This routine performs the periodic noise floor calibration function |
| 344 | * that is used to adjust and optimize the chip performance. This |
| 345 | * takes environmental changes (location, temperature) into account. |
| 346 | * When the task is complete, it reschedules itself depending on the |
| 347 | * appropriate interval that was calculated. |
| 348 | */ |
Sujith | 5562420 | 2010-01-08 10:36:02 +0530 | [diff] [blame] | 349 | void ath_ani_calibrate(unsigned long data) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 350 | { |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 351 | struct ath_softc *sc = (struct ath_softc *)data; |
| 352 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 353 | struct ath_common *common = ath9k_hw_common(ah); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 354 | bool longcal = false; |
| 355 | bool shortcal = false; |
| 356 | bool aniflag = false; |
| 357 | unsigned int timestamp = jiffies_to_msecs(jiffies); |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 358 | u32 cal_interval, short_cal_interval; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 359 | |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 360 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
| 361 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 362 | |
Jouni Malinen | 1ffc1c6 | 2009-05-19 17:01:39 +0300 | [diff] [blame] | 363 | /* Only calibrate if awake */ |
| 364 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) |
| 365 | goto set_timer; |
| 366 | |
| 367 | ath9k_ps_wakeup(sc); |
| 368 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 369 | /* Long calibration runs independently of short calibration. */ |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 370 | if ((timestamp - common->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 371 | longcal = true; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 372 | ath_print(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 373 | common->ani.longcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 374 | } |
| 375 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 376 | /* Short calibration applies only while caldone is false */ |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 377 | if (!common->ani.caldone) { |
| 378 | if ((timestamp - common->ani.shortcal_timer) >= short_cal_interval) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 379 | shortcal = true; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 380 | ath_print(common, ATH_DBG_ANI, |
| 381 | "shortcal @%lu\n", jiffies); |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 382 | common->ani.shortcal_timer = timestamp; |
| 383 | common->ani.resetcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 384 | } |
| 385 | } else { |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 386 | if ((timestamp - common->ani.resetcal_timer) >= |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 387 | ATH_RESTART_CALINTERVAL) { |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 388 | common->ani.caldone = ath9k_hw_reset_calvalid(ah); |
| 389 | if (common->ani.caldone) |
| 390 | common->ani.resetcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 391 | } |
| 392 | } |
| 393 | |
| 394 | /* Verify whether we must check ANI */ |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 395 | if ((timestamp - common->ani.checkani_timer) >= |
| 396 | ah->config.ani_poll_interval) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 397 | aniflag = true; |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 398 | common->ani.checkani_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 399 | } |
| 400 | |
| 401 | /* Skip all processing if there's nothing to do. */ |
| 402 | if (longcal || shortcal || aniflag) { |
| 403 | /* Call ANI routine if necessary */ |
| 404 | if (aniflag) |
Vasanthakumar Thiagarajan | 22e66a4 | 2009-08-19 16:23:40 +0530 | [diff] [blame] | 405 | ath9k_hw_ani_monitor(ah, ah->curchan); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 406 | |
| 407 | /* Perform calibration if necessary */ |
| 408 | if (longcal || shortcal) { |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 409 | common->ani.caldone = |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 410 | ath9k_hw_calibrate(ah, |
| 411 | ah->curchan, |
| 412 | common->rx_chainmask, |
| 413 | longcal); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 414 | |
Sujith | 379f044 | 2009-04-13 21:56:48 +0530 | [diff] [blame] | 415 | if (longcal) |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 416 | common->ani.noise_floor = ath9k_hw_getchan_noise(ah, |
Sujith | 379f044 | 2009-04-13 21:56:48 +0530 | [diff] [blame] | 417 | ah->curchan); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 418 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 419 | ath_print(common, ATH_DBG_ANI, |
| 420 | " calibrate chan %u/%x nf: %d\n", |
| 421 | ah->curchan->channel, |
| 422 | ah->curchan->channelFlags, |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 423 | common->ani.noise_floor); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 424 | } |
| 425 | } |
| 426 | |
Jouni Malinen | 1ffc1c6 | 2009-05-19 17:01:39 +0300 | [diff] [blame] | 427 | ath9k_ps_restore(sc); |
| 428 | |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 429 | set_timer: |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 430 | /* |
| 431 | * Set timer interval based on previous results. |
| 432 | * The interval must be the shortest necessary to satisfy ANI, |
| 433 | * short calibration and long calibration. |
| 434 | */ |
Sujith | aac9207 | 2008-12-02 18:37:54 +0530 | [diff] [blame] | 435 | cal_interval = ATH_LONG_CALINTERVAL; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 436 | if (sc->sc_ah->config.enable_ani) |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 437 | cal_interval = min(cal_interval, |
| 438 | (u32)ah->config.ani_poll_interval); |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 439 | if (!common->ani.caldone) |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 440 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 441 | |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 442 | mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame^] | 443 | if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && |
| 444 | !(sc->sc_flags & SC_OP_SCANNING)) { |
| 445 | if (!sc->sc_ah->curchan->paprd_done) |
| 446 | ieee80211_queue_work(sc->hw, &sc->paprd_work); |
| 447 | else |
| 448 | ath_paprd_activate(sc); |
| 449 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 450 | } |
| 451 | |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 452 | static void ath_start_ani(struct ath_common *common) |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 453 | { |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 454 | struct ath_hw *ah = common->ah; |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 455 | unsigned long timestamp = jiffies_to_msecs(jiffies); |
| 456 | |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 457 | common->ani.longcal_timer = timestamp; |
| 458 | common->ani.shortcal_timer = timestamp; |
| 459 | common->ani.checkani_timer = timestamp; |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 460 | |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 461 | mod_timer(&common->ani.timer, |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 462 | jiffies + |
| 463 | msecs_to_jiffies((u32)ah->config.ani_poll_interval)); |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 464 | } |
| 465 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 466 | /* |
| 467 | * Update tx/rx chainmask. For legacy association, |
| 468 | * hard code chainmask to 1x1, for 11n association, use |
Vasanthakumar Thiagarajan | c97c92d | 2009-01-02 15:35:46 +0530 | [diff] [blame] | 469 | * the chainmask configuration, for bt coexistence, use |
| 470 | * the chainmask configuration even in legacy mode. |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 471 | */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 472 | void ath_update_chainmask(struct ath_softc *sc, int is_ht) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 473 | { |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 474 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 475 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 476 | |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 477 | if ((sc->sc_flags & SC_OP_SCANNING) || is_ht || |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 478 | (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE)) { |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 479 | common->tx_chainmask = ah->caps.tx_chainmask; |
| 480 | common->rx_chainmask = ah->caps.rx_chainmask; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 481 | } else { |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 482 | common->tx_chainmask = 1; |
| 483 | common->rx_chainmask = 1; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 484 | } |
| 485 | |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 486 | ath_print(common, ATH_DBG_CONFIG, |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 487 | "tx chmask: %d, rx chmask: %d\n", |
Luis R. Rodriguez | 43c2761 | 2009-09-13 21:07:07 -0700 | [diff] [blame] | 488 | common->tx_chainmask, |
| 489 | common->rx_chainmask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 490 | } |
| 491 | |
| 492 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) |
| 493 | { |
| 494 | struct ath_node *an; |
| 495 | |
| 496 | an = (struct ath_node *)sta->drv_priv; |
| 497 | |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 498 | if (sc->sc_flags & SC_OP_TXAGGR) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 499 | ath_tx_node_init(sc, an); |
Sujith | 9e98ac6 | 2009-07-23 15:32:34 +0530 | [diff] [blame] | 500 | an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 501 | sta->ht_cap.ampdu_factor); |
| 502 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); |
Senthil Balasubramanian | a59b5a5 | 2009-07-14 20:17:07 -0400 | [diff] [blame] | 503 | an->last_rssi = ATH_RSSI_DUMMY_MARKER; |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 504 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 505 | } |
| 506 | |
| 507 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) |
| 508 | { |
| 509 | struct ath_node *an = (struct ath_node *)sta->drv_priv; |
| 510 | |
| 511 | if (sc->sc_flags & SC_OP_TXAGGR) |
| 512 | ath_tx_node_cleanup(sc, an); |
| 513 | } |
| 514 | |
Sujith | 5562420 | 2010-01-08 10:36:02 +0530 | [diff] [blame] | 515 | void ath9k_tasklet(unsigned long data) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 516 | { |
| 517 | struct ath_softc *sc = (struct ath_softc *)data; |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 518 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 519 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 520 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 521 | u32 status = sc->intrstatus; |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 522 | u32 rxmask; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 523 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 524 | ath9k_ps_wakeup(sc); |
| 525 | |
Felix Fietkau | c9c99e5 | 2010-04-19 19:57:29 +0200 | [diff] [blame] | 526 | if ((status & ATH9K_INT_FATAL) || |
| 527 | !ath9k_hw_check_alive(ah)) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 528 | ath_reset(sc, false); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 529 | ath9k_ps_restore(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 530 | return; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 531 | } |
| 532 | |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 533 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) |
| 534 | rxmask = (ATH9K_INT_RXHP | ATH9K_INT_RXLP | ATH9K_INT_RXEOL | |
| 535 | ATH9K_INT_RXORN); |
| 536 | else |
| 537 | rxmask = (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN); |
| 538 | |
| 539 | if (status & rxmask) { |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 540 | spin_lock_bh(&sc->rx.rxflushlock); |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 541 | |
| 542 | /* Check for high priority Rx first */ |
| 543 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && |
| 544 | (status & ATH9K_INT_RXHP)) |
| 545 | ath_rx_tasklet(sc, 0, true); |
| 546 | |
| 547 | ath_rx_tasklet(sc, 0, false); |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 548 | spin_unlock_bh(&sc->rx.rxflushlock); |
| 549 | } |
| 550 | |
Vasanthakumar Thiagarajan | e500324 | 2010-04-15 17:39:36 -0400 | [diff] [blame] | 551 | if (status & ATH9K_INT_TX) { |
| 552 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) |
| 553 | ath_tx_edma_tasklet(sc); |
| 554 | else |
| 555 | ath_tx_tasklet(sc); |
| 556 | } |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 557 | |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 558 | if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { |
Jouni Malinen | 54ce846 | 2009-05-19 17:01:40 +0300 | [diff] [blame] | 559 | /* |
| 560 | * TSF sync does not look correct; remain awake to sync with |
| 561 | * the next Beacon. |
| 562 | */ |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 563 | ath_print(common, ATH_DBG_PS, |
| 564 | "TSFOOR - Sync with next Beacon\n"); |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 565 | sc->ps_flags |= PS_WAIT_FOR_BEACON | PS_BEACON_SYNC; |
Jouni Malinen | 54ce846 | 2009-05-19 17:01:40 +0300 | [diff] [blame] | 566 | } |
| 567 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 568 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
Vasanthakumar Thiagarajan | ebb8e1d | 2009-09-01 17:46:32 +0530 | [diff] [blame] | 569 | if (status & ATH9K_INT_GENTIMER) |
| 570 | ath_gen_timer_isr(sc->sc_ah); |
| 571 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 572 | /* re-enable hardware interrupt */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 573 | ath9k_hw_set_interrupts(ah, ah->imask); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 574 | ath9k_ps_restore(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 575 | } |
| 576 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 577 | irqreturn_t ath_isr(int irq, void *dev) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 578 | { |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 579 | #define SCHED_INTR ( \ |
| 580 | ATH9K_INT_FATAL | \ |
| 581 | ATH9K_INT_RXORN | \ |
| 582 | ATH9K_INT_RXEOL | \ |
| 583 | ATH9K_INT_RX | \ |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 584 | ATH9K_INT_RXLP | \ |
| 585 | ATH9K_INT_RXHP | \ |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 586 | ATH9K_INT_TX | \ |
| 587 | ATH9K_INT_BMISS | \ |
| 588 | ATH9K_INT_CST | \ |
Vasanthakumar Thiagarajan | ebb8e1d | 2009-09-01 17:46:32 +0530 | [diff] [blame] | 589 | ATH9K_INT_TSFOOR | \ |
| 590 | ATH9K_INT_GENTIMER) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 591 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 592 | struct ath_softc *sc = dev; |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 593 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 594 | enum ath9k_int status; |
| 595 | bool sched = false; |
| 596 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 597 | /* |
| 598 | * The hardware is not ready/present, don't |
| 599 | * touch anything. Note this can happen early |
| 600 | * on if the IRQ is shared. |
| 601 | */ |
| 602 | if (sc->sc_flags & SC_OP_INVALID) |
| 603 | return IRQ_NONE; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 604 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 605 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 606 | /* shared irq, not for us */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 607 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 608 | if (!ath9k_hw_intrpend(ah)) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 609 | return IRQ_NONE; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 610 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 611 | /* |
| 612 | * Figure out the reason(s) for the interrupt. Note |
| 613 | * that the hal returns a pseudo-ISR that may include |
| 614 | * bits we haven't explicitly enabled so we mask the |
| 615 | * value to insure we only process bits we requested. |
| 616 | */ |
| 617 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 618 | status &= ah->imask; /* discard unasked-for bits */ |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 619 | |
| 620 | /* |
| 621 | * If there are no status bits set, then this interrupt was not |
| 622 | * for me (should have been caught above). |
| 623 | */ |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 624 | if (!status) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 625 | return IRQ_NONE; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 626 | |
| 627 | /* Cache the status */ |
| 628 | sc->intrstatus = status; |
| 629 | |
| 630 | if (status & SCHED_INTR) |
| 631 | sched = true; |
| 632 | |
| 633 | /* |
| 634 | * If a FATAL or RXORN interrupt is received, we have to reset the |
| 635 | * chip immediately. |
| 636 | */ |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 637 | if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) && |
| 638 | !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 639 | goto chip_reset; |
| 640 | |
Luis R. Rodriguez | 08578b8 | 2010-05-13 13:33:44 -0400 | [diff] [blame] | 641 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && |
| 642 | (status & ATH9K_INT_BB_WATCHDOG)) { |
| 643 | ar9003_hw_bb_watchdog_dbg_info(ah); |
| 644 | goto chip_reset; |
| 645 | } |
| 646 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 647 | if (status & ATH9K_INT_SWBA) |
| 648 | tasklet_schedule(&sc->bcon_tasklet); |
| 649 | |
| 650 | if (status & ATH9K_INT_TXURN) |
| 651 | ath9k_hw_updatetxtriglevel(ah, true); |
| 652 | |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 653 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { |
| 654 | if (status & ATH9K_INT_RXEOL) { |
| 655 | ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN); |
| 656 | ath9k_hw_set_interrupts(ah, ah->imask); |
| 657 | } |
| 658 | } |
| 659 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 660 | if (status & ATH9K_INT_MIB) { |
| 661 | /* |
| 662 | * Disable interrupts until we service the MIB |
| 663 | * interrupt; otherwise it will continue to |
| 664 | * fire. |
| 665 | */ |
| 666 | ath9k_hw_set_interrupts(ah, 0); |
| 667 | /* |
| 668 | * Let the hal handle the event. We assume |
| 669 | * it will clear whatever condition caused |
| 670 | * the interrupt. |
| 671 | */ |
Vasanthakumar Thiagarajan | 22e66a4 | 2009-08-19 16:23:40 +0530 | [diff] [blame] | 672 | ath9k_hw_procmibevent(ah); |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 673 | ath9k_hw_set_interrupts(ah, ah->imask); |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 674 | } |
| 675 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 676 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
| 677 | if (status & ATH9K_INT_TIM_TIMER) { |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 678 | /* Clear RxAbort bit so that we can |
| 679 | * receive frames */ |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 680 | ath9k_setpower(sc, ATH9K_PM_AWAKE); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 681 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 682 | sc->ps_flags |= PS_WAIT_FOR_BEACON; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 683 | } |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 684 | |
| 685 | chip_reset: |
| 686 | |
Sujith | 817e11d | 2008-12-07 21:42:44 +0530 | [diff] [blame] | 687 | ath_debug_stat_interrupt(sc, status); |
| 688 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 689 | if (sched) { |
| 690 | /* turn off every interrupt except SWBA */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 691 | ath9k_hw_set_interrupts(ah, (ah->imask & ATH9K_INT_SWBA)); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 692 | tasklet_schedule(&sc->intr_tq); |
| 693 | } |
| 694 | |
| 695 | return IRQ_HANDLED; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 696 | |
| 697 | #undef SCHED_INTR |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 698 | } |
| 699 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 700 | static u32 ath_get_extchanmode(struct ath_softc *sc, |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 701 | struct ieee80211_channel *chan, |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 702 | enum nl80211_channel_type channel_type) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 703 | { |
| 704 | u32 chanmode = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 705 | |
| 706 | switch (chan->band) { |
| 707 | case IEEE80211_BAND_2GHZ: |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 708 | switch(channel_type) { |
| 709 | case NL80211_CHAN_NO_HT: |
| 710 | case NL80211_CHAN_HT20: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 711 | chanmode = CHANNEL_G_HT20; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 712 | break; |
| 713 | case NL80211_CHAN_HT40PLUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 714 | chanmode = CHANNEL_G_HT40PLUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 715 | break; |
| 716 | case NL80211_CHAN_HT40MINUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 717 | chanmode = CHANNEL_G_HT40MINUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 718 | break; |
| 719 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 720 | break; |
| 721 | case IEEE80211_BAND_5GHZ: |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 722 | switch(channel_type) { |
| 723 | case NL80211_CHAN_NO_HT: |
| 724 | case NL80211_CHAN_HT20: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 725 | chanmode = CHANNEL_A_HT20; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 726 | break; |
| 727 | case NL80211_CHAN_HT40PLUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 728 | chanmode = CHANNEL_A_HT40PLUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 729 | break; |
| 730 | case NL80211_CHAN_HT40MINUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 731 | chanmode = CHANNEL_A_HT40MINUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 732 | break; |
| 733 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 734 | break; |
| 735 | default: |
| 736 | break; |
| 737 | } |
| 738 | |
| 739 | return chanmode; |
| 740 | } |
| 741 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 742 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 743 | struct ieee80211_vif *vif, |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 744 | struct ieee80211_bss_conf *bss_conf) |
| 745 | { |
Luis R. Rodriguez | f2b2143 | 2009-09-10 08:50:20 -0700 | [diff] [blame] | 746 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 747 | struct ath_common *common = ath9k_hw_common(ah); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 748 | |
| 749 | if (bss_conf->assoc) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 750 | ath_print(common, ATH_DBG_CONFIG, |
| 751 | "Bss Info ASSOC %d, bssid: %pM\n", |
| 752 | bss_conf->aid, common->curbssid); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 753 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 754 | /* New association, store aid */ |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 755 | common->curaid = bss_conf->aid; |
Luis R. Rodriguez | f2b2143 | 2009-09-10 08:50:20 -0700 | [diff] [blame] | 756 | ath9k_hw_write_associd(ah); |
Jouni Malinen | ccdfeab | 2009-05-20 21:59:08 +0300 | [diff] [blame] | 757 | |
Senthil Balasubramanian | 2664f20 | 2009-06-24 18:56:39 +0530 | [diff] [blame] | 758 | /* |
| 759 | * Request a re-configuration of Beacon related timers |
| 760 | * on the receipt of the first Beacon frame (i.e., |
| 761 | * after time sync with the AP). |
| 762 | */ |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 763 | sc->ps_flags |= PS_BEACON_SYNC; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 764 | |
| 765 | /* Configure the beacon */ |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 766 | ath_beacon_config(sc, vif); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 767 | |
| 768 | /* Reset rssi stats */ |
Vasanthakumar Thiagarajan | 22e66a4 | 2009-08-19 16:23:40 +0530 | [diff] [blame] | 769 | sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 770 | |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 771 | ath_start_ani(common); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 772 | } else { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 773 | ath_print(common, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 774 | common->curaid = 0; |
Senthil Balasubramanian | f38faa3 | 2009-06-24 18:56:40 +0530 | [diff] [blame] | 775 | /* Stop ANI */ |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 776 | del_timer_sync(&common->ani.timer); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 777 | } |
| 778 | } |
| 779 | |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 780 | void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 781 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 782 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 783 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 784 | struct ieee80211_channel *channel = hw->conf.channel; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 785 | int r; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 786 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 787 | ath9k_ps_wakeup(sc); |
Vivek Natarajan | 93b1b37 | 2009-09-17 09:24:58 +0530 | [diff] [blame] | 788 | ath9k_hw_configpcipowersave(ah, 0, 0); |
Sujith | d2f5b3a | 2009-04-13 21:56:25 +0530 | [diff] [blame] | 789 | |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 790 | if (!ah->curchan) |
| 791 | ah->curchan = ath_get_curchannel(sc, sc->hw); |
| 792 | |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 793 | spin_lock_bh(&sc->sc_resetlock); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 794 | r = ath9k_hw_reset(ah, ah->curchan, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 795 | if (r) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 796 | ath_print(common, ATH_DBG_FATAL, |
Pavel Roskin | f643e51 | 2010-01-29 17:22:12 -0500 | [diff] [blame] | 797 | "Unable to reset channel (%u MHz), " |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 798 | "reset status %d\n", |
| 799 | channel->center_freq, r); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 800 | } |
| 801 | spin_unlock_bh(&sc->sc_resetlock); |
| 802 | |
| 803 | ath_update_txpow(sc); |
| 804 | if (ath_startrecv(sc) != 0) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 805 | ath_print(common, ATH_DBG_FATAL, |
| 806 | "Unable to restart recv logic\n"); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 807 | return; |
| 808 | } |
| 809 | |
| 810 | if (sc->sc_flags & SC_OP_BEACONS) |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 811 | ath_beacon_config(sc, NULL); /* restart beacons */ |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 812 | |
| 813 | /* Re-Enable interrupts */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 814 | ath9k_hw_set_interrupts(ah, ah->imask); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 815 | |
| 816 | /* Enable LED */ |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 817 | ath9k_hw_cfg_output(ah, ah->led_pin, |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 818 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 819 | ath9k_hw_set_gpio(ah, ah->led_pin, 0); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 820 | |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 821 | ieee80211_wake_queues(hw); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 822 | ath9k_ps_restore(sc); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 823 | } |
| 824 | |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 825 | void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 826 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 827 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 828 | struct ieee80211_channel *channel = hw->conf.channel; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 829 | int r; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 830 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 831 | ath9k_ps_wakeup(sc); |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 832 | ieee80211_stop_queues(hw); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 833 | |
| 834 | /* Disable LED */ |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 835 | ath9k_hw_set_gpio(ah, ah->led_pin, 1); |
| 836 | ath9k_hw_cfg_gpio_input(ah, ah->led_pin); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 837 | |
| 838 | /* Disable interrupts */ |
| 839 | ath9k_hw_set_interrupts(ah, 0); |
| 840 | |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 841 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 842 | ath_stoprecv(sc); /* turn off frame recv */ |
| 843 | ath_flushrecv(sc); /* flush recv queue */ |
| 844 | |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 845 | if (!ah->curchan) |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 846 | ah->curchan = ath_get_curchannel(sc, hw); |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 847 | |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 848 | spin_lock_bh(&sc->sc_resetlock); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 849 | r = ath9k_hw_reset(ah, ah->curchan, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 850 | if (r) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 851 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, |
Pavel Roskin | f643e51 | 2010-01-29 17:22:12 -0500 | [diff] [blame] | 852 | "Unable to reset channel (%u MHz), " |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 853 | "reset status %d\n", |
| 854 | channel->center_freq, r); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 855 | } |
| 856 | spin_unlock_bh(&sc->sc_resetlock); |
| 857 | |
| 858 | ath9k_hw_phy_disable(ah); |
Vivek Natarajan | 93b1b37 | 2009-09-17 09:24:58 +0530 | [diff] [blame] | 859 | ath9k_hw_configpcipowersave(ah, 1, 1); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 860 | ath9k_ps_restore(sc); |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 861 | ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 862 | } |
| 863 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 864 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
| 865 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 866 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 867 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 868 | struct ieee80211_hw *hw = sc->hw; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 869 | int r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 870 | |
Sujith | 2ab81d4 | 2009-12-14 16:34:56 +0530 | [diff] [blame] | 871 | /* Stop ANI */ |
| 872 | del_timer_sync(&common->ani.timer); |
| 873 | |
Sujith | cc9c378 | 2010-01-08 10:36:09 +0530 | [diff] [blame] | 874 | ieee80211_stop_queues(hw); |
| 875 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 876 | ath9k_hw_set_interrupts(ah, 0); |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 877 | ath_drain_all_txq(sc, retry_tx); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 878 | ath_stoprecv(sc); |
| 879 | ath_flushrecv(sc); |
| 880 | |
| 881 | spin_lock_bh(&sc->sc_resetlock); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 882 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 883 | if (r) |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 884 | ath_print(common, ATH_DBG_FATAL, |
| 885 | "Unable to reset hardware; reset status %d\n", r); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 886 | spin_unlock_bh(&sc->sc_resetlock); |
| 887 | |
| 888 | if (ath_startrecv(sc) != 0) |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 889 | ath_print(common, ATH_DBG_FATAL, |
| 890 | "Unable to start recv logic\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 891 | |
| 892 | /* |
| 893 | * We may be doing a reset in response to a request |
| 894 | * that changes the channel so update any state that |
| 895 | * might change as a result. |
| 896 | */ |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 897 | ath_cache_conf_rate(sc, &hw->conf); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 898 | |
| 899 | ath_update_txpow(sc); |
| 900 | |
| 901 | if (sc->sc_flags & SC_OP_BEACONS) |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 902 | ath_beacon_config(sc, NULL); /* restart beacons */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 903 | |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 904 | ath9k_hw_set_interrupts(ah, ah->imask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 905 | |
| 906 | if (retry_tx) { |
| 907 | int i; |
| 908 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { |
| 909 | if (ATH_TXQ_SETUP(sc, i)) { |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 910 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
| 911 | ath_txq_schedule(sc, &sc->tx.txq[i]); |
| 912 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 913 | } |
| 914 | } |
| 915 | } |
| 916 | |
Sujith | cc9c378 | 2010-01-08 10:36:09 +0530 | [diff] [blame] | 917 | ieee80211_wake_queues(hw); |
| 918 | |
Sujith | 2ab81d4 | 2009-12-14 16:34:56 +0530 | [diff] [blame] | 919 | /* Start ANI */ |
| 920 | ath_start_ani(common); |
| 921 | |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 922 | return r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 923 | } |
| 924 | |
Felix Fietkau | ebe297c | 2010-06-12 00:33:53 -0400 | [diff] [blame] | 925 | static int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 926 | { |
| 927 | int qnum; |
| 928 | |
| 929 | switch (queue) { |
| 930 | case 0: |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 931 | qnum = sc->tx.hwq_map[WME_AC_VO]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 932 | break; |
| 933 | case 1: |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 934 | qnum = sc->tx.hwq_map[WME_AC_VI]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 935 | break; |
| 936 | case 2: |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 937 | qnum = sc->tx.hwq_map[WME_AC_BE]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 938 | break; |
| 939 | case 3: |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 940 | qnum = sc->tx.hwq_map[WME_AC_BK]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 941 | break; |
| 942 | default: |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 943 | qnum = sc->tx.hwq_map[WME_AC_BE]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 944 | break; |
| 945 | } |
| 946 | |
| 947 | return qnum; |
| 948 | } |
| 949 | |
| 950 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc) |
| 951 | { |
| 952 | int qnum; |
| 953 | |
| 954 | switch (queue) { |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 955 | case WME_AC_VO: |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 956 | qnum = 0; |
| 957 | break; |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 958 | case WME_AC_VI: |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 959 | qnum = 1; |
| 960 | break; |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 961 | case WME_AC_BE: |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 962 | qnum = 2; |
| 963 | break; |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 964 | case WME_AC_BK: |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 965 | qnum = 3; |
| 966 | break; |
| 967 | default: |
| 968 | qnum = -1; |
| 969 | break; |
| 970 | } |
| 971 | |
| 972 | return qnum; |
| 973 | } |
| 974 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 975 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
| 976 | * this redundant data */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 977 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
| 978 | struct ath9k_channel *ichan) |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 979 | { |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 980 | struct ieee80211_channel *chan = hw->conf.channel; |
| 981 | struct ieee80211_conf *conf = &hw->conf; |
| 982 | |
| 983 | ichan->channel = chan->center_freq; |
| 984 | ichan->chan = chan; |
| 985 | |
| 986 | if (chan->band == IEEE80211_BAND_2GHZ) { |
| 987 | ichan->chanmode = CHANNEL_G; |
Sujith | 8813262 | 2009-09-03 12:08:53 +0530 | [diff] [blame] | 988 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM | CHANNEL_G; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 989 | } else { |
| 990 | ichan->chanmode = CHANNEL_A; |
| 991 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; |
| 992 | } |
| 993 | |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 994 | if (conf_is_ht(conf)) |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 995 | ichan->chanmode = ath_get_extchanmode(sc, chan, |
| 996 | conf->channel_type); |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 997 | } |
| 998 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 999 | /**********************/ |
| 1000 | /* mac80211 callbacks */ |
| 1001 | /**********************/ |
| 1002 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1003 | static int ath9k_start(struct ieee80211_hw *hw) |
| 1004 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1005 | struct ath_wiphy *aphy = hw->priv; |
| 1006 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1007 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1008 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1009 | struct ieee80211_channel *curchan = hw->conf.channel; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1010 | struct ath9k_channel *init_channel; |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1011 | int r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1012 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1013 | ath_print(common, ATH_DBG_CONFIG, |
| 1014 | "Starting driver with initial channel: %d MHz\n", |
| 1015 | curchan->center_freq); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1016 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1017 | mutex_lock(&sc->mutex); |
| 1018 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 1019 | if (ath9k_wiphy_started(sc)) { |
| 1020 | if (sc->chan_idx == curchan->hw_value) { |
| 1021 | /* |
| 1022 | * Already on the operational channel, the new wiphy |
| 1023 | * can be marked active. |
| 1024 | */ |
| 1025 | aphy->state = ATH_WIPHY_ACTIVE; |
| 1026 | ieee80211_wake_queues(hw); |
| 1027 | } else { |
| 1028 | /* |
| 1029 | * Another wiphy is on another channel, start the new |
| 1030 | * wiphy in paused state. |
| 1031 | */ |
| 1032 | aphy->state = ATH_WIPHY_PAUSED; |
| 1033 | ieee80211_stop_queues(hw); |
| 1034 | } |
| 1035 | mutex_unlock(&sc->mutex); |
| 1036 | return 0; |
| 1037 | } |
| 1038 | aphy->state = ATH_WIPHY_ACTIVE; |
| 1039 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1040 | /* setup initial channel */ |
| 1041 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1042 | sc->chan_idx = curchan->hw_value; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1043 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1044 | init_channel = ath_get_curchannel(sc, hw); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1045 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1046 | /* Reset SERDES registers */ |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1047 | ath9k_hw_configpcipowersave(ah, 0, 0); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1048 | |
| 1049 | /* |
| 1050 | * The basic interface to setting the hardware in a good |
| 1051 | * state is ``reset''. On return the hardware is known to |
| 1052 | * be powered up and with interrupts disabled. This must |
| 1053 | * be followed by initialization of the appropriate bits |
| 1054 | * and then setup of the interrupt mask. |
| 1055 | */ |
| 1056 | spin_lock_bh(&sc->sc_resetlock); |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1057 | r = ath9k_hw_reset(ah, init_channel, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1058 | if (r) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1059 | ath_print(common, ATH_DBG_FATAL, |
| 1060 | "Unable to reset hardware; reset status %d " |
| 1061 | "(freq %u MHz)\n", r, |
| 1062 | curchan->center_freq); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1063 | spin_unlock_bh(&sc->sc_resetlock); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1064 | goto mutex_unlock; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1065 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1066 | spin_unlock_bh(&sc->sc_resetlock); |
| 1067 | |
| 1068 | /* |
| 1069 | * This is needed only to setup initial state |
| 1070 | * but it's best done after a reset. |
| 1071 | */ |
| 1072 | ath_update_txpow(sc); |
| 1073 | |
| 1074 | /* |
| 1075 | * Setup the hardware after reset: |
| 1076 | * The receive engine is set going. |
| 1077 | * Frame transmit is handled entirely |
| 1078 | * in the frame output path; there's nothing to do |
| 1079 | * here except setup the interrupt mask. |
| 1080 | */ |
| 1081 | if (ath_startrecv(sc) != 0) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1082 | ath_print(common, ATH_DBG_FATAL, |
| 1083 | "Unable to start recv logic\n"); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1084 | r = -EIO; |
| 1085 | goto mutex_unlock; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1086 | } |
| 1087 | |
| 1088 | /* Setup our intr mask. */ |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 1089 | ah->imask = ATH9K_INT_TX | ATH9K_INT_RXEOL | |
| 1090 | ATH9K_INT_RXORN | ATH9K_INT_FATAL | |
| 1091 | ATH9K_INT_GLOBAL; |
| 1092 | |
| 1093 | if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) |
Luis R. Rodriguez | 08578b8 | 2010-05-13 13:33:44 -0400 | [diff] [blame] | 1094 | ah->imask |= ATH9K_INT_RXHP | |
| 1095 | ATH9K_INT_RXLP | |
| 1096 | ATH9K_INT_BB_WATCHDOG; |
Felix Fietkau | b5c80475 | 2010-04-15 17:38:48 -0400 | [diff] [blame] | 1097 | else |
| 1098 | ah->imask |= ATH9K_INT_RX; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1099 | |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1100 | if (ah->caps.hw_caps & ATH9K_HW_CAP_GTT) |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1101 | ah->imask |= ATH9K_INT_GTT; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1102 | |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1103 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1104 | ah->imask |= ATH9K_INT_CST; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1105 | |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 1106 | ath_cache_conf_rate(sc, &hw->conf); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1107 | |
| 1108 | sc->sc_flags &= ~SC_OP_INVALID; |
| 1109 | |
| 1110 | /* Disable BMISS interrupt when we're not associated */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1111 | ah->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
| 1112 | ath9k_hw_set_interrupts(ah, ah->imask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1113 | |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1114 | ieee80211_wake_queues(hw); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1115 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1116 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
Senthil Balasubramanian | 164ace3 | 2009-07-14 20:17:09 -0400 | [diff] [blame] | 1117 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 1118 | if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) && |
| 1119 | !ah->btcoex_hw.enabled) { |
Luis R. Rodriguez | 5e19729 | 2009-09-09 15:15:55 -0700 | [diff] [blame] | 1120 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
| 1121 | AR_STOMP_LOW_WLAN_WGHT); |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1122 | ath9k_hw_btcoex_enable(ah); |
Vasanthakumar Thiagarajan | f985ad1 | 2009-08-26 21:08:43 +0530 | [diff] [blame] | 1123 | |
Luis R. Rodriguez | 5bb1279 | 2009-09-14 00:55:09 -0700 | [diff] [blame] | 1124 | if (common->bus_ops->bt_coex_prep) |
| 1125 | common->bus_ops->bt_coex_prep(common); |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 1126 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
Luis R. Rodriguez | 75d7839 | 2009-09-09 04:00:10 -0700 | [diff] [blame] | 1127 | ath9k_btcoex_timer_resume(sc); |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 1128 | } |
| 1129 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1130 | mutex_unlock: |
| 1131 | mutex_unlock(&sc->mutex); |
| 1132 | |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1133 | return r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1134 | } |
| 1135 | |
| 1136 | static int ath9k_tx(struct ieee80211_hw *hw, |
| 1137 | struct sk_buff *skb) |
| 1138 | { |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 1139 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1140 | struct ath_wiphy *aphy = hw->priv; |
| 1141 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1142 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1143 | struct ath_tx_control txctl; |
Benoit Papillault | 1bc1488 | 2009-11-24 15:49:18 +0100 | [diff] [blame] | 1144 | int padpos, padsize; |
| 1145 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
Felix Fietkau | 84642d6 | 2010-06-01 21:33:13 +0200 | [diff] [blame] | 1146 | int qnum; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1147 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1148 | if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1149 | ath_print(common, ATH_DBG_XMIT, |
| 1150 | "ath9k: %s: TX in unexpected wiphy state " |
| 1151 | "%d\n", wiphy_name(hw->wiphy), aphy->state); |
Jouni Malinen | ee166a0 | 2009-03-03 19:23:36 +0200 | [diff] [blame] | 1152 | goto exit; |
| 1153 | } |
| 1154 | |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 1155 | if (sc->ps_enabled) { |
Jouni Malinen | dc8c458 | 2009-05-19 17:01:42 +0300 | [diff] [blame] | 1156 | /* |
| 1157 | * mac80211 does not set PM field for normal data frames, so we |
| 1158 | * need to update that based on the current PS mode. |
| 1159 | */ |
| 1160 | if (ieee80211_is_data(hdr->frame_control) && |
| 1161 | !ieee80211_is_nullfunc(hdr->frame_control) && |
| 1162 | !ieee80211_has_pm(hdr->frame_control)) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1163 | ath_print(common, ATH_DBG_PS, "Add PM=1 for a TX frame " |
| 1164 | "while in PS mode\n"); |
Jouni Malinen | dc8c458 | 2009-05-19 17:01:42 +0300 | [diff] [blame] | 1165 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
| 1166 | } |
| 1167 | } |
| 1168 | |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1169 | if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { |
| 1170 | /* |
| 1171 | * We are using PS-Poll and mac80211 can request TX while in |
| 1172 | * power save mode. Need to wake up hardware for the TX to be |
| 1173 | * completed and if needed, also for RX of buffered frames. |
| 1174 | */ |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1175 | ath9k_ps_wakeup(sc); |
Vasanthakumar Thiagarajan | fdf7662 | 2010-05-17 18:57:55 -0700 | [diff] [blame] | 1176 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
| 1177 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1178 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1179 | ath_print(common, ATH_DBG_PS, |
| 1180 | "Sending PS-Poll to pick a buffered frame\n"); |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 1181 | sc->ps_flags |= PS_WAIT_FOR_PSPOLL_DATA; |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1182 | } else { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1183 | ath_print(common, ATH_DBG_PS, |
| 1184 | "Wake up to complete TX\n"); |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 1185 | sc->ps_flags |= PS_WAIT_FOR_TX_ACK; |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 1186 | } |
| 1187 | /* |
| 1188 | * The actual restore operation will happen only after |
| 1189 | * the sc_flags bit is cleared. We are just dropping |
| 1190 | * the ps_usecount here. |
| 1191 | */ |
| 1192 | ath9k_ps_restore(sc); |
| 1193 | } |
| 1194 | |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1195 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 1196 | |
| 1197 | /* |
| 1198 | * As a temporary workaround, assign seq# here; this will likely need |
| 1199 | * to be cleaned up to work better with Beacon transmission and virtual |
| 1200 | * BSSes. |
| 1201 | */ |
| 1202 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 1203 | if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1204 | sc->tx.seq_no += 0x10; |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 1205 | hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1206 | hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 1207 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1208 | |
| 1209 | /* Add the padding after the header if this is not already done */ |
Benoit Papillault | 1bc1488 | 2009-11-24 15:49:18 +0100 | [diff] [blame] | 1210 | padpos = ath9k_cmn_padpos(hdr->frame_control); |
| 1211 | padsize = padpos & 3; |
| 1212 | if (padsize && skb->len>padpos) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1213 | if (skb_headroom(skb) < padsize) |
| 1214 | return -1; |
| 1215 | skb_push(skb, padsize); |
Benoit Papillault | 1bc1488 | 2009-11-24 15:49:18 +0100 | [diff] [blame] | 1216 | memmove(skb->data, skb->data + padsize, padpos); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1217 | } |
| 1218 | |
Felix Fietkau | 84642d6 | 2010-06-01 21:33:13 +0200 | [diff] [blame] | 1219 | qnum = ath_get_hal_qnum(skb_get_queue_mapping(skb), sc); |
| 1220 | txctl.txq = &sc->tx.txq[qnum]; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1221 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1222 | ath_print(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1223 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1224 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1225 | ath_print(common, ATH_DBG_XMIT, "TX failed\n"); |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1226 | goto exit; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1227 | } |
| 1228 | |
| 1229 | return 0; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1230 | exit: |
| 1231 | dev_kfree_skb_any(skb); |
| 1232 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1233 | } |
| 1234 | |
| 1235 | static void ath9k_stop(struct ieee80211_hw *hw) |
| 1236 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1237 | struct ath_wiphy *aphy = hw->priv; |
| 1238 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1239 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1240 | struct ath_common *common = ath9k_hw_common(ah); |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1241 | |
Sujith | 4c48381 | 2009-08-18 10:51:52 +0530 | [diff] [blame] | 1242 | mutex_lock(&sc->mutex); |
| 1243 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 1244 | aphy->state = ATH_WIPHY_INACTIVE; |
| 1245 | |
Luis R. Rodriguez | c94dbff | 2009-07-27 11:53:04 -0700 | [diff] [blame] | 1246 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
| 1247 | cancel_delayed_work_sync(&sc->tx_complete_work); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame^] | 1248 | cancel_work_sync(&sc->paprd_work); |
Luis R. Rodriguez | c94dbff | 2009-07-27 11:53:04 -0700 | [diff] [blame] | 1249 | |
| 1250 | if (!sc->num_sec_wiphy) { |
| 1251 | cancel_delayed_work_sync(&sc->wiphy_work); |
| 1252 | cancel_work_sync(&sc->chan_work); |
| 1253 | } |
| 1254 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1255 | if (sc->sc_flags & SC_OP_INVALID) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1256 | ath_print(common, ATH_DBG_ANY, "Device not present\n"); |
Sujith | 4c48381 | 2009-08-18 10:51:52 +0530 | [diff] [blame] | 1257 | mutex_unlock(&sc->mutex); |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1258 | return; |
| 1259 | } |
| 1260 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 1261 | if (ath9k_wiphy_started(sc)) { |
| 1262 | mutex_unlock(&sc->mutex); |
| 1263 | return; /* another wiphy still in use */ |
| 1264 | } |
| 1265 | |
Sujith | 3867cf6 | 2009-12-23 20:03:27 -0500 | [diff] [blame] | 1266 | /* Ensure HW is awake when we try to shut it down. */ |
| 1267 | ath9k_ps_wakeup(sc); |
| 1268 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 1269 | if (ah->btcoex_hw.enabled) { |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1270 | ath9k_hw_btcoex_disable(ah); |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 1271 | if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE) |
Luis R. Rodriguez | 75d7839 | 2009-09-09 04:00:10 -0700 | [diff] [blame] | 1272 | ath9k_btcoex_timer_pause(sc); |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 1273 | } |
| 1274 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1275 | /* make sure h/w will not generate any interrupt |
| 1276 | * before setting the invalid flag. */ |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1277 | ath9k_hw_set_interrupts(ah, 0); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1278 | |
| 1279 | if (!(sc->sc_flags & SC_OP_INVALID)) { |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 1280 | ath_drain_all_txq(sc, false); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1281 | ath_stoprecv(sc); |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1282 | ath9k_hw_phy_disable(ah); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1283 | } else |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1284 | sc->rx.rxlink = NULL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1285 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1286 | /* disable HAL and put h/w to sleep */ |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 1287 | ath9k_hw_disable(ah); |
| 1288 | ath9k_hw_configpcipowersave(ah, 1, 1); |
Sujith | 3867cf6 | 2009-12-23 20:03:27 -0500 | [diff] [blame] | 1289 | ath9k_ps_restore(sc); |
| 1290 | |
| 1291 | /* Finally, put the chip in FULL SLEEP mode */ |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 1292 | ath9k_setpower(sc, ATH9K_PM_FULL_SLEEP); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1293 | |
| 1294 | sc->sc_flags |= SC_OP_INVALID; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1295 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1296 | mutex_unlock(&sc->mutex); |
| 1297 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1298 | ath_print(common, ATH_DBG_CONFIG, "Driver halt\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1299 | } |
| 1300 | |
| 1301 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1302 | struct ieee80211_vif *vif) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1303 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1304 | struct ath_wiphy *aphy = hw->priv; |
| 1305 | struct ath_softc *sc = aphy->sc; |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1306 | struct ath_hw *ah = sc->sc_ah; |
| 1307 | struct ath_common *common = ath9k_hw_common(ah); |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1308 | struct ath_vif *avp = (void *)vif->drv_priv; |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 1309 | enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1310 | int ret = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1311 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1312 | mutex_lock(&sc->mutex); |
| 1313 | |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1314 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) && |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 1315 | sc->nvifs > 0) { |
| 1316 | ret = -ENOBUFS; |
| 1317 | goto out; |
| 1318 | } |
| 1319 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1320 | switch (vif->type) { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1321 | case NL80211_IFTYPE_STATION: |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 1322 | ic_opmode = NL80211_IFTYPE_STATION; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1323 | break; |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1324 | case NL80211_IFTYPE_ADHOC: |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1325 | case NL80211_IFTYPE_AP: |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 1326 | case NL80211_IFTYPE_MESH_POINT: |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1327 | if (sc->nbcnvifs >= ATH_BCBUF) { |
| 1328 | ret = -ENOBUFS; |
| 1329 | goto out; |
| 1330 | } |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1331 | ic_opmode = vif->type; |
Jouni Malinen | 2ad67de | 2008-08-11 14:01:47 +0300 | [diff] [blame] | 1332 | break; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1333 | default: |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1334 | ath_print(common, ATH_DBG_FATAL, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1335 | "Interface type %d not yet supported\n", vif->type); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1336 | ret = -EOPNOTSUPP; |
| 1337 | goto out; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1338 | } |
| 1339 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1340 | ath_print(common, ATH_DBG_CONFIG, |
| 1341 | "Attach a VIF of type: %d\n", ic_opmode); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1342 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1343 | /* Set the VIF opmode */ |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 1344 | avp->av_opmode = ic_opmode; |
| 1345 | avp->av_bslot = -1; |
| 1346 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1347 | sc->nvifs++; |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 1348 | |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1349 | if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 1350 | ath9k_set_bssid_mask(hw); |
| 1351 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1352 | if (sc->nvifs > 1) |
| 1353 | goto out; /* skip global settings for secondary vif */ |
| 1354 | |
Sujith | b238e90 | 2009-03-03 10:16:56 +0530 | [diff] [blame] | 1355 | if (ic_opmode == NL80211_IFTYPE_AP) { |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1356 | ath9k_hw_set_tsfadjust(ah, 1); |
Sujith | b238e90 | 2009-03-03 10:16:56 +0530 | [diff] [blame] | 1357 | sc->sc_flags |= SC_OP_TSF_RESET; |
| 1358 | } |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 1359 | |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 1360 | /* Set the device opmode */ |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1361 | ah->opmode = ic_opmode; |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 1362 | |
Vivek Natarajan | 4e30ffa | 2009-01-28 20:53:27 +0530 | [diff] [blame] | 1363 | /* |
| 1364 | * Enable MIB interrupts when there are hardware phy counters. |
| 1365 | * Note we only do this (at the moment) for station mode. |
| 1366 | */ |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1367 | if ((vif->type == NL80211_IFTYPE_STATION) || |
| 1368 | (vif->type == NL80211_IFTYPE_ADHOC) || |
| 1369 | (vif->type == NL80211_IFTYPE_MESH_POINT)) { |
Luis R. Rodriguez | 3448f91 | 2010-04-15 17:38:23 -0400 | [diff] [blame] | 1370 | if (ah->config.enable_ani) |
| 1371 | ah->imask |= ATH9K_INT_MIB; |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1372 | ah->imask |= ATH9K_INT_TSFOOR; |
Sujith | 4af9cf4 | 2009-02-12 10:06:47 +0530 | [diff] [blame] | 1373 | } |
| 1374 | |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1375 | ath9k_hw_set_interrupts(ah, ah->imask); |
Vivek Natarajan | 4e30ffa | 2009-01-28 20:53:27 +0530 | [diff] [blame] | 1376 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1377 | if (vif->type == NL80211_IFTYPE_AP || |
| 1378 | vif->type == NL80211_IFTYPE_ADHOC || |
| 1379 | vif->type == NL80211_IFTYPE_MONITOR) |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 1380 | ath_start_ani(common); |
Luis R. Rodriguez | 6f25542 | 2008-10-03 15:45:27 -0700 | [diff] [blame] | 1381 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1382 | out: |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1383 | mutex_unlock(&sc->mutex); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1384 | return ret; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1385 | } |
| 1386 | |
| 1387 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1388 | struct ieee80211_vif *vif) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1389 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1390 | struct ath_wiphy *aphy = hw->priv; |
| 1391 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1392 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1393 | struct ath_vif *avp = (void *)vif->drv_priv; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1394 | int i; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1395 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1396 | ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1397 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1398 | mutex_lock(&sc->mutex); |
| 1399 | |
Luis R. Rodriguez | 6f25542 | 2008-10-03 15:45:27 -0700 | [diff] [blame] | 1400 | /* Stop ANI */ |
Luis R. Rodriguez | 3d536ac | 2009-11-03 17:07:04 -0800 | [diff] [blame] | 1401 | del_timer_sync(&common->ani.timer); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1402 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1403 | /* Reclaim beacon resources */ |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 1404 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || |
| 1405 | (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || |
| 1406 | (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { |
Luis R. Rodriguez | 5f70a88 | 2009-12-23 20:03:28 -0500 | [diff] [blame] | 1407 | ath9k_ps_wakeup(sc); |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1408 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
Luis R. Rodriguez | 5f70a88 | 2009-12-23 20:03:28 -0500 | [diff] [blame] | 1409 | ath9k_ps_restore(sc); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1410 | } |
| 1411 | |
Felix Fietkau | 7440177 | 2010-01-19 20:51:32 +0100 | [diff] [blame] | 1412 | ath_beacon_return(sc, avp); |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1413 | sc->sc_flags &= ~SC_OP_BEACONS; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1414 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1415 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1416 | if (sc->beacon.bslot[i] == vif) { |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1417 | printk(KERN_DEBUG "%s: vif had allocated beacon " |
| 1418 | "slot\n", __func__); |
| 1419 | sc->beacon.bslot[i] = NULL; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1420 | sc->beacon.bslot_aphy[i] = NULL; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1421 | } |
| 1422 | } |
| 1423 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1424 | sc->nvifs--; |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1425 | |
| 1426 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1427 | } |
| 1428 | |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1429 | void ath9k_enable_ps(struct ath_softc *sc) |
| 1430 | { |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1431 | struct ath_hw *ah = sc->sc_ah; |
| 1432 | |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1433 | sc->ps_enabled = true; |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1434 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { |
| 1435 | if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) { |
| 1436 | ah->imask |= ATH9K_INT_TIM_TIMER; |
| 1437 | ath9k_hw_set_interrupts(ah, ah->imask); |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1438 | } |
Vasanthakumar Thiagarajan | fdf7662 | 2010-05-17 18:57:55 -0700 | [diff] [blame] | 1439 | ath9k_hw_setrxabort(ah, 1); |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1440 | } |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1441 | } |
| 1442 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 1443 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1444 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1445 | struct ath_wiphy *aphy = hw->priv; |
| 1446 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1447 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 1448 | struct ieee80211_conf *conf = &hw->conf; |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 1449 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1450 | bool disable_radio; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1451 | |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 1452 | mutex_lock(&sc->mutex); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1453 | |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1454 | /* |
| 1455 | * Leave this as the first check because we need to turn on the |
| 1456 | * radio if it was disabled before prior to processing the rest |
| 1457 | * of the changes. Likewise we must only disable the radio towards |
| 1458 | * the end. |
| 1459 | */ |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1460 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1461 | bool enable_radio; |
| 1462 | bool all_wiphys_idle; |
| 1463 | bool idle = !!(conf->flags & IEEE80211_CONF_IDLE); |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1464 | |
| 1465 | spin_lock_bh(&sc->wiphy_lock); |
| 1466 | all_wiphys_idle = ath9k_all_wiphys_idle(sc); |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1467 | ath9k_set_wiphy_idle(aphy, idle); |
| 1468 | |
Felix Fietkau | 1144601 | 2010-04-06 12:05:01 -0700 | [diff] [blame] | 1469 | enable_radio = (!idle && all_wiphys_idle); |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1470 | |
| 1471 | /* |
| 1472 | * After we unlock here its possible another wiphy |
| 1473 | * can be re-renabled so to account for that we will |
| 1474 | * only disable the radio toward the end of this routine |
| 1475 | * if by then all wiphys are still idle. |
| 1476 | */ |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1477 | spin_unlock_bh(&sc->wiphy_lock); |
| 1478 | |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1479 | if (enable_radio) { |
Vivek Natarajan | 1dbfd9d | 2010-01-29 16:56:51 +0530 | [diff] [blame] | 1480 | sc->ps_idle = false; |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 1481 | ath_radio_enable(sc, hw); |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1482 | ath_print(common, ATH_DBG_CONFIG, |
| 1483 | "not-idle: enabling radio\n"); |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1484 | } |
| 1485 | } |
| 1486 | |
Luis R. Rodriguez | e7824a5 | 2009-11-24 02:53:25 -0500 | [diff] [blame] | 1487 | /* |
| 1488 | * We just prepare to enable PS. We have to wait until our AP has |
| 1489 | * ACK'd our null data frame to disable RX otherwise we'll ignore |
| 1490 | * those ACKs and end up retransmitting the same null data frames. |
| 1491 | * IEEE80211_CONF_CHANGE_PS is only passed by mac80211 for STA mode. |
| 1492 | */ |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1493 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
| 1494 | if (conf->flags & IEEE80211_CONF_PS) { |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 1495 | sc->ps_flags |= PS_ENABLED; |
Luis R. Rodriguez | e7824a5 | 2009-11-24 02:53:25 -0500 | [diff] [blame] | 1496 | /* |
| 1497 | * At this point we know hardware has received an ACK |
| 1498 | * of a previously sent null data frame. |
| 1499 | */ |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 1500 | if ((sc->ps_flags & PS_NULLFUNC_COMPLETED)) { |
| 1501 | sc->ps_flags &= ~PS_NULLFUNC_COMPLETED; |
Senthil Balasubramanian | 3f7c5c1 | 2010-02-03 22:51:13 +0530 | [diff] [blame] | 1502 | ath9k_enable_ps(sc); |
Luis R. Rodriguez | e7824a5 | 2009-11-24 02:53:25 -0500 | [diff] [blame] | 1503 | } |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1504 | } else { |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 1505 | sc->ps_enabled = false; |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 1506 | sc->ps_flags &= ~(PS_ENABLED | |
| 1507 | PS_NULLFUNC_COMPLETED); |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 1508 | ath9k_setpower(sc, ATH9K_PM_AWAKE); |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 1509 | if (!(ah->caps.hw_caps & |
| 1510 | ATH9K_HW_CAP_AUTOSLEEP)) { |
| 1511 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
Sujith | 1b04b93 | 2010-01-08 10:36:05 +0530 | [diff] [blame] | 1512 | sc->ps_flags &= ~(PS_WAIT_FOR_BEACON | |
| 1513 | PS_WAIT_FOR_CAB | |
| 1514 | PS_WAIT_FOR_PSPOLL_DATA | |
| 1515 | PS_WAIT_FOR_TX_ACK); |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1516 | if (ah->imask & ATH9K_INT_TIM_TIMER) { |
| 1517 | ah->imask &= ~ATH9K_INT_TIM_TIMER; |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 1518 | ath9k_hw_set_interrupts(sc->sc_ah, |
Pavel Roskin | 3069168 | 2010-03-31 18:05:31 -0400 | [diff] [blame] | 1519 | ah->imask); |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 1520 | } |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1521 | } |
| 1522 | } |
| 1523 | } |
| 1524 | |
Sujith | 199afd9 | 2010-01-08 10:36:13 +0530 | [diff] [blame] | 1525 | if (changed & IEEE80211_CONF_CHANGE_MONITOR) { |
| 1526 | if (conf->flags & IEEE80211_CONF_MONITOR) { |
| 1527 | ath_print(common, ATH_DBG_CONFIG, |
| 1528 | "HW opmode set to Monitor mode\n"); |
| 1529 | sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; |
| 1530 | } |
| 1531 | } |
| 1532 | |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 1533 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 1534 | struct ieee80211_channel *curchan = hw->conf.channel; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1535 | int pos = curchan->hw_value; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1536 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1537 | aphy->chan_idx = pos; |
| 1538 | aphy->chan_is_ht = conf_is_ht(conf); |
| 1539 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1540 | if (aphy->state == ATH_WIPHY_SCAN || |
| 1541 | aphy->state == ATH_WIPHY_ACTIVE) |
| 1542 | ath9k_wiphy_pause_all_forced(sc, aphy); |
| 1543 | else { |
| 1544 | /* |
| 1545 | * Do not change operational channel based on a paused |
| 1546 | * wiphy changes. |
| 1547 | */ |
| 1548 | goto skip_chan_change; |
| 1549 | } |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1550 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1551 | ath_print(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
| 1552 | curchan->center_freq); |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 1553 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1554 | /* XXX: remove me eventualy */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1555 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1556 | |
Luis R. Rodriguez | ecf7044 | 2008-12-23 15:58:43 -0800 | [diff] [blame] | 1557 | ath_update_chainmask(sc, conf_is_ht(conf)); |
Sujith | 86060f0 | 2009-01-07 14:25:29 +0530 | [diff] [blame] | 1558 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1559 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1560 | ath_print(common, ATH_DBG_FATAL, |
| 1561 | "Unable to set channel\n"); |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 1562 | mutex_unlock(&sc->mutex); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 1563 | return -EINVAL; |
| 1564 | } |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 1565 | } |
Sujith | 86b89ee | 2008-08-07 10:54:57 +0530 | [diff] [blame] | 1566 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1567 | skip_chan_change: |
Luis R. Rodriguez | c9f6a65 | 2010-01-19 14:04:19 -0500 | [diff] [blame] | 1568 | if (changed & IEEE80211_CONF_CHANGE_POWER) { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1569 | sc->config.txpowlimit = 2 * conf->power_level; |
Luis R. Rodriguez | c9f6a65 | 2010-01-19 14:04:19 -0500 | [diff] [blame] | 1570 | ath_update_txpow(sc); |
| 1571 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1572 | |
Luis R. Rodriguez | 194b7c1 | 2009-10-29 10:41:15 -0700 | [diff] [blame] | 1573 | spin_lock_bh(&sc->wiphy_lock); |
| 1574 | disable_radio = ath9k_all_wiphys_idle(sc); |
| 1575 | spin_unlock_bh(&sc->wiphy_lock); |
| 1576 | |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1577 | if (disable_radio) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1578 | ath_print(common, ATH_DBG_CONFIG, "idle: disabling radio\n"); |
Vivek Natarajan | 1dbfd9d | 2010-01-29 16:56:51 +0530 | [diff] [blame] | 1579 | sc->ps_idle = true; |
Luis R. Rodriguez | 68a8911 | 2009-11-02 14:35:42 -0800 | [diff] [blame] | 1580 | ath_radio_disable(sc, hw); |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 1581 | } |
| 1582 | |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 1583 | mutex_unlock(&sc->mutex); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1584 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1585 | return 0; |
| 1586 | } |
| 1587 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1588 | #define SUPPORTED_FILTERS \ |
| 1589 | (FIF_PROMISC_IN_BSS | \ |
| 1590 | FIF_ALLMULTI | \ |
| 1591 | FIF_CONTROL | \ |
Luis R. Rodriguez | af6a3fc | 2009-08-08 21:55:16 -0400 | [diff] [blame] | 1592 | FIF_PSPOLL | \ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1593 | FIF_OTHER_BSS | \ |
| 1594 | FIF_BCN_PRBRESP_PROMISC | \ |
| 1595 | FIF_FCSFAIL) |
| 1596 | |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 1597 | /* FIXME: sc->sc_full_reset ? */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1598 | static void ath9k_configure_filter(struct ieee80211_hw *hw, |
| 1599 | unsigned int changed_flags, |
| 1600 | unsigned int *total_flags, |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1601 | u64 multicast) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1602 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1603 | struct ath_wiphy *aphy = hw->priv; |
| 1604 | struct ath_softc *sc = aphy->sc; |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 1605 | u32 rfilt; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1606 | |
| 1607 | changed_flags &= SUPPORTED_FILTERS; |
| 1608 | *total_flags &= SUPPORTED_FILTERS; |
| 1609 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1610 | sc->rx.rxfilter = *total_flags; |
Jouni Malinen | aa68aea | 2009-05-19 17:01:41 +0300 | [diff] [blame] | 1611 | ath9k_ps_wakeup(sc); |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 1612 | rfilt = ath_calcrxfilter(sc); |
| 1613 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); |
Jouni Malinen | aa68aea | 2009-05-19 17:01:41 +0300 | [diff] [blame] | 1614 | ath9k_ps_restore(sc); |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 1615 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1616 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_CONFIG, |
| 1617 | "Set HW RX filter: 0x%x\n", rfilt); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1618 | } |
| 1619 | |
Johannes Berg | 4ca7786 | 2010-02-19 19:06:56 +0100 | [diff] [blame] | 1620 | static int ath9k_sta_add(struct ieee80211_hw *hw, |
| 1621 | struct ieee80211_vif *vif, |
| 1622 | struct ieee80211_sta *sta) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1623 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1624 | struct ath_wiphy *aphy = hw->priv; |
| 1625 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1626 | |
Johannes Berg | 4ca7786 | 2010-02-19 19:06:56 +0100 | [diff] [blame] | 1627 | ath_node_attach(sc, sta); |
| 1628 | |
| 1629 | return 0; |
| 1630 | } |
| 1631 | |
| 1632 | static int ath9k_sta_remove(struct ieee80211_hw *hw, |
| 1633 | struct ieee80211_vif *vif, |
| 1634 | struct ieee80211_sta *sta) |
| 1635 | { |
| 1636 | struct ath_wiphy *aphy = hw->priv; |
| 1637 | struct ath_softc *sc = aphy->sc; |
| 1638 | |
| 1639 | ath_node_detach(sc, sta); |
| 1640 | |
| 1641 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1642 | } |
| 1643 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1644 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1645 | const struct ieee80211_tx_queue_params *params) |
| 1646 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1647 | struct ath_wiphy *aphy = hw->priv; |
| 1648 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1649 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Sujith | ea9880f | 2008-08-07 10:53:10 +0530 | [diff] [blame] | 1650 | struct ath9k_tx_queue_info qi; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1651 | int ret = 0, qnum; |
| 1652 | |
| 1653 | if (queue >= WME_NUM_AC) |
| 1654 | return 0; |
| 1655 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1656 | mutex_lock(&sc->mutex); |
| 1657 | |
Sujith | 1ffb061 | 2009-03-30 15:28:46 +0530 | [diff] [blame] | 1658 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
| 1659 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1660 | qi.tqi_aifs = params->aifs; |
| 1661 | qi.tqi_cwmin = params->cw_min; |
| 1662 | qi.tqi_cwmax = params->cw_max; |
| 1663 | qi.tqi_burstTime = params->txop; |
| 1664 | qnum = ath_get_hal_qnum(queue, sc); |
| 1665 | |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1666 | ath_print(common, ATH_DBG_CONFIG, |
| 1667 | "Configure tx [queue/halq] [%d/%d], " |
| 1668 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
| 1669 | queue, qnum, params->aifs, params->cw_min, |
| 1670 | params->cw_max, params->txop); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1671 | |
| 1672 | ret = ath_txq_update(sc, qnum, &qi); |
| 1673 | if (ret) |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1674 | ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1675 | |
Vivek Natarajan | 94db293 | 2009-11-25 12:01:54 +0530 | [diff] [blame] | 1676 | if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) |
Felix Fietkau | 1d2231e | 2010-06-12 00:33:51 -0400 | [diff] [blame] | 1677 | if ((qnum == sc->tx.hwq_map[WME_AC_BE]) && !ret) |
Vivek Natarajan | 94db293 | 2009-11-25 12:01:54 +0530 | [diff] [blame] | 1678 | ath_beaconq_config(sc); |
| 1679 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1680 | mutex_unlock(&sc->mutex); |
| 1681 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1682 | return ret; |
| 1683 | } |
| 1684 | |
| 1685 | static int ath9k_set_key(struct ieee80211_hw *hw, |
| 1686 | enum set_key_cmd cmd, |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 1687 | struct ieee80211_vif *vif, |
| 1688 | struct ieee80211_sta *sta, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1689 | struct ieee80211_key_conf *key) |
| 1690 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1691 | struct ath_wiphy *aphy = hw->priv; |
| 1692 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1693 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1694 | int ret = 0; |
| 1695 | |
Jouni Malinen | b3bd89c | 2009-02-24 13:42:01 +0200 | [diff] [blame] | 1696 | if (modparam_nohwcrypt) |
| 1697 | return -ENOSPC; |
| 1698 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1699 | mutex_lock(&sc->mutex); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1700 | ath9k_ps_wakeup(sc); |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1701 | ath_print(common, ATH_DBG_CONFIG, "Set HW Key\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1702 | |
| 1703 | switch (cmd) { |
| 1704 | case SET_KEY: |
Felix Fietkau | 1f03baa | 2010-05-25 19:42:46 +0200 | [diff] [blame] | 1705 | ret = ath9k_cmn_key_config(common, vif, sta, key); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 1706 | if (ret >= 0) { |
| 1707 | key->hw_key_idx = ret; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1708 | /* push IV and Michael MIC generation to stack */ |
| 1709 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
Senthil Balasubramanian | 1b96175 | 2008-09-01 19:45:21 +0530 | [diff] [blame] | 1710 | if (key->alg == ALG_TKIP) |
| 1711 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
Jouni Malinen | 0ced0e1 | 2009-01-08 13:32:13 +0200 | [diff] [blame] | 1712 | if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP) |
| 1713 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 1714 | ret = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1715 | } |
| 1716 | break; |
| 1717 | case DISABLE_KEY: |
Felix Fietkau | 1f03baa | 2010-05-25 19:42:46 +0200 | [diff] [blame] | 1718 | ath9k_cmn_key_delete(common, key); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1719 | break; |
| 1720 | default: |
| 1721 | ret = -EINVAL; |
| 1722 | } |
| 1723 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1724 | ath9k_ps_restore(sc); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1725 | mutex_unlock(&sc->mutex); |
| 1726 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1727 | return ret; |
| 1728 | } |
| 1729 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1730 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
| 1731 | struct ieee80211_vif *vif, |
| 1732 | struct ieee80211_bss_conf *bss_conf, |
| 1733 | u32 changed) |
| 1734 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1735 | struct ath_wiphy *aphy = hw->priv; |
| 1736 | struct ath_softc *sc = aphy->sc; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1737 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 1738 | struct ath_common *common = ath9k_hw_common(ah); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1739 | struct ath_vif *avp = (void *)vif->drv_priv; |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 1740 | int slottime; |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1741 | int error; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1742 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1743 | mutex_lock(&sc->mutex); |
| 1744 | |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1745 | if (changed & BSS_CHANGED_BSSID) { |
| 1746 | /* Set BSSID */ |
| 1747 | memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); |
| 1748 | memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN); |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 1749 | common->curaid = 0; |
Luis R. Rodriguez | f2b2143 | 2009-09-10 08:50:20 -0700 | [diff] [blame] | 1750 | ath9k_hw_write_associd(ah); |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1751 | |
| 1752 | /* Set aggregation protection mode parameters */ |
| 1753 | sc->config.ath_aggr_prot = 0; |
| 1754 | |
| 1755 | /* Only legacy IBSS for now */ |
| 1756 | if (vif->type == NL80211_IFTYPE_ADHOC) |
| 1757 | ath_update_chainmask(sc, 0); |
| 1758 | |
| 1759 | ath_print(common, ATH_DBG_CONFIG, |
| 1760 | "BSSID: %pM aid: 0x%x\n", |
| 1761 | common->curbssid, common->curaid); |
| 1762 | |
| 1763 | /* need to reconfigure the beacon */ |
| 1764 | sc->sc_flags &= ~SC_OP_BEACONS ; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1765 | } |
| 1766 | |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1767 | /* Enable transmission of beacons (AP, IBSS, MESH) */ |
| 1768 | if ((changed & BSS_CHANGED_BEACON) || |
| 1769 | ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon)) { |
| 1770 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
| 1771 | error = ath_beacon_alloc(aphy, vif); |
| 1772 | if (!error) |
| 1773 | ath_beacon_config(sc, vif); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1774 | } |
| 1775 | |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 1776 | if (changed & BSS_CHANGED_ERP_SLOT) { |
| 1777 | if (bss_conf->use_short_slot) |
| 1778 | slottime = 9; |
| 1779 | else |
| 1780 | slottime = 20; |
| 1781 | if (vif->type == NL80211_IFTYPE_AP) { |
| 1782 | /* |
| 1783 | * Defer update, so that connected stations can adjust |
| 1784 | * their settings at the same time. |
| 1785 | * See beacon.c for more details |
| 1786 | */ |
| 1787 | sc->beacon.slottime = slottime; |
| 1788 | sc->beacon.updateslot = UPDATE; |
| 1789 | } else { |
| 1790 | ah->slottime = slottime; |
| 1791 | ath9k_hw_init_global_settings(ah); |
| 1792 | } |
| 1793 | } |
| 1794 | |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1795 | /* Disable transmission of beacons */ |
| 1796 | if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) |
| 1797 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
| 1798 | |
| 1799 | if (changed & BSS_CHANGED_BEACON_INT) { |
| 1800 | sc->beacon_interval = bss_conf->beacon_int; |
| 1801 | /* |
| 1802 | * In case of AP mode, the HW TSF has to be reset |
| 1803 | * when the beacon interval changes. |
| 1804 | */ |
| 1805 | if (vif->type == NL80211_IFTYPE_AP) { |
| 1806 | sc->sc_flags |= SC_OP_TSF_RESET; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1807 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1808 | error = ath_beacon_alloc(aphy, vif); |
| 1809 | if (!error) |
| 1810 | ath_beacon_config(sc, vif); |
Sujith | c6089cc | 2009-11-16 11:40:48 +0530 | [diff] [blame] | 1811 | } else { |
| 1812 | ath_beacon_config(sc, vif); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1813 | } |
| 1814 | } |
| 1815 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1816 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1817 | ath_print(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
| 1818 | bss_conf->use_short_preamble); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1819 | if (bss_conf->use_short_preamble) |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1820 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1821 | else |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1822 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1823 | } |
| 1824 | |
| 1825 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1826 | ath_print(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
| 1827 | bss_conf->use_cts_prot); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1828 | if (bss_conf->use_cts_prot && |
| 1829 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1830 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1831 | else |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 1832 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1833 | } |
| 1834 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1835 | if (changed & BSS_CHANGED_ASSOC) { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1836 | ath_print(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1837 | bss_conf->assoc); |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 1838 | ath9k_bss_assoc_info(sc, vif, bss_conf); |
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 | |
| 1841 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1842 | } |
| 1843 | |
| 1844 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
| 1845 | { |
| 1846 | u64 tsf; |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1847 | struct ath_wiphy *aphy = hw->priv; |
| 1848 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1849 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1850 | mutex_lock(&sc->mutex); |
| 1851 | tsf = ath9k_hw_gettsf64(sc->sc_ah); |
| 1852 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1853 | |
| 1854 | return tsf; |
| 1855 | } |
| 1856 | |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 1857 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
| 1858 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1859 | struct ath_wiphy *aphy = hw->priv; |
| 1860 | struct ath_softc *sc = aphy->sc; |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 1861 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1862 | mutex_lock(&sc->mutex); |
| 1863 | ath9k_hw_settsf64(sc->sc_ah, tsf); |
| 1864 | mutex_unlock(&sc->mutex); |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 1865 | } |
| 1866 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1867 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
| 1868 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1869 | struct ath_wiphy *aphy = hw->priv; |
| 1870 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1871 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1872 | mutex_lock(&sc->mutex); |
Luis R. Rodriguez | 21526d5 | 2009-09-09 20:05:39 -0700 | [diff] [blame] | 1873 | |
| 1874 | ath9k_ps_wakeup(sc); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1875 | ath9k_hw_reset_tsf(sc->sc_ah); |
Luis R. Rodriguez | 21526d5 | 2009-09-09 20:05:39 -0700 | [diff] [blame] | 1876 | ath9k_ps_restore(sc); |
| 1877 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1878 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1879 | } |
| 1880 | |
| 1881 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 1882 | struct ieee80211_vif *vif, |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1883 | enum ieee80211_ampdu_mlme_action action, |
| 1884 | struct ieee80211_sta *sta, |
| 1885 | u16 tid, u16 *ssn) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1886 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1887 | struct ath_wiphy *aphy = hw->priv; |
| 1888 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1889 | int ret = 0; |
| 1890 | |
Johannes Berg | 85ad181 | 2010-06-10 10:21:49 +0200 | [diff] [blame] | 1891 | local_bh_disable(); |
| 1892 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1893 | switch (action) { |
| 1894 | case IEEE80211_AMPDU_RX_START: |
Sujith | dca3edb | 2008-10-29 10:19:01 +0530 | [diff] [blame] | 1895 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
| 1896 | ret = -ENOTSUPP; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1897 | break; |
| 1898 | case IEEE80211_AMPDU_RX_STOP: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1899 | break; |
| 1900 | case IEEE80211_AMPDU_TX_START: |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 1901 | ath9k_ps_wakeup(sc); |
Sujith | f83da96 | 2009-07-23 15:32:37 +0530 | [diff] [blame] | 1902 | ath_tx_aggr_start(sc, sta, tid, ssn); |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 1903 | ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 1904 | ath9k_ps_restore(sc); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1905 | break; |
| 1906 | case IEEE80211_AMPDU_TX_STOP: |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 1907 | ath9k_ps_wakeup(sc); |
Sujith | f83da96 | 2009-07-23 15:32:37 +0530 | [diff] [blame] | 1908 | ath_tx_aggr_stop(sc, sta, tid); |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 1909 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 1910 | ath9k_ps_restore(sc); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1911 | break; |
Johannes Berg | b172023 | 2009-03-23 17:28:39 +0100 | [diff] [blame] | 1912 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 1913 | ath9k_ps_wakeup(sc); |
Sujith | 8469cde | 2008-10-29 10:19:28 +0530 | [diff] [blame] | 1914 | ath_tx_aggr_resume(sc, sta, tid); |
Luis R. Rodriguez | 8b685ba | 2009-12-23 20:03:29 -0500 | [diff] [blame] | 1915 | ath9k_ps_restore(sc); |
Sujith | 8469cde | 2008-10-29 10:19:28 +0530 | [diff] [blame] | 1916 | break; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1917 | default: |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1918 | ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL, |
| 1919 | "Unknown AMPDU action\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1920 | } |
| 1921 | |
Johannes Berg | 85ad181 | 2010-06-10 10:21:49 +0200 | [diff] [blame] | 1922 | local_bh_enable(); |
| 1923 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1924 | return ret; |
| 1925 | } |
| 1926 | |
Benoit Papillault | 62dad5b | 2010-04-28 00:08:24 +0200 | [diff] [blame] | 1927 | static int ath9k_get_survey(struct ieee80211_hw *hw, int idx, |
| 1928 | struct survey_info *survey) |
| 1929 | { |
| 1930 | struct ath_wiphy *aphy = hw->priv; |
| 1931 | struct ath_softc *sc = aphy->sc; |
| 1932 | struct ath_hw *ah = sc->sc_ah; |
| 1933 | struct ath_common *common = ath9k_hw_common(ah); |
| 1934 | struct ieee80211_conf *conf = &hw->conf; |
| 1935 | |
| 1936 | if (idx != 0) |
| 1937 | return -ENOENT; |
| 1938 | |
| 1939 | survey->channel = conf->channel; |
| 1940 | survey->filled = SURVEY_INFO_NOISE_DBM; |
| 1941 | survey->noise = common->ani.noise_floor; |
| 1942 | |
| 1943 | return 0; |
| 1944 | } |
| 1945 | |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 1946 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
| 1947 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1948 | struct ath_wiphy *aphy = hw->priv; |
| 1949 | struct ath_softc *sc = aphy->sc; |
Sujith | 05c78d6 | 2009-12-14 14:57:04 +0530 | [diff] [blame] | 1950 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 1951 | |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 1952 | mutex_lock(&sc->mutex); |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1953 | if (ath9k_wiphy_scanning(sc)) { |
| 1954 | printk(KERN_DEBUG "ath9k: Two wiphys trying to scan at the " |
| 1955 | "same time\n"); |
| 1956 | /* |
| 1957 | * Do not allow the concurrent scanning state for now. This |
| 1958 | * could be improved with scanning control moved into ath9k. |
| 1959 | */ |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 1960 | mutex_unlock(&sc->mutex); |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1961 | return; |
| 1962 | } |
| 1963 | |
| 1964 | aphy->state = ATH_WIPHY_SCAN; |
| 1965 | ath9k_wiphy_pause_all_forced(sc, aphy); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 1966 | sc->sc_flags |= SC_OP_SCANNING; |
Sujith | 05c78d6 | 2009-12-14 14:57:04 +0530 | [diff] [blame] | 1967 | del_timer_sync(&common->ani.timer); |
Felix Fietkau | 9f42c2b | 2010-06-12 00:34:01 -0400 | [diff] [blame^] | 1968 | cancel_work_sync(&sc->paprd_work); |
Sujith | b6ce5c3 | 2009-12-14 14:57:06 +0530 | [diff] [blame] | 1969 | cancel_delayed_work_sync(&sc->tx_complete_work); |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 1970 | mutex_unlock(&sc->mutex); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 1971 | } |
| 1972 | |
| 1973 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) |
| 1974 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1975 | struct ath_wiphy *aphy = hw->priv; |
| 1976 | struct ath_softc *sc = aphy->sc; |
Sujith | 05c78d6 | 2009-12-14 14:57:04 +0530 | [diff] [blame] | 1977 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 1978 | |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 1979 | mutex_lock(&sc->mutex); |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1980 | aphy->state = ATH_WIPHY_ACTIVE; |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 1981 | sc->sc_flags &= ~SC_OP_SCANNING; |
Sujith | 9c07a77 | 2009-04-13 21:56:36 +0530 | [diff] [blame] | 1982 | sc->sc_flags |= SC_OP_FULL_RESET; |
Sujith | 05c78d6 | 2009-12-14 14:57:04 +0530 | [diff] [blame] | 1983 | ath_start_ani(common); |
Sujith | b6ce5c3 | 2009-12-14 14:57:06 +0530 | [diff] [blame] | 1984 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
Vivek Natarajan | d0bec34 | 2009-09-02 15:50:55 +0530 | [diff] [blame] | 1985 | ath_beacon_config(sc, NULL); |
Sujith | 3d83261 | 2009-08-21 12:00:28 +0530 | [diff] [blame] | 1986 | mutex_unlock(&sc->mutex); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 1987 | } |
| 1988 | |
Felix Fietkau | e239d85 | 2010-01-15 02:34:58 +0100 | [diff] [blame] | 1989 | static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) |
| 1990 | { |
| 1991 | struct ath_wiphy *aphy = hw->priv; |
| 1992 | struct ath_softc *sc = aphy->sc; |
| 1993 | struct ath_hw *ah = sc->sc_ah; |
| 1994 | |
| 1995 | mutex_lock(&sc->mutex); |
| 1996 | ah->coverage_class = coverage_class; |
| 1997 | ath9k_hw_init_global_settings(ah); |
| 1998 | mutex_unlock(&sc->mutex); |
| 1999 | } |
| 2000 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2001 | struct ieee80211_ops ath9k_ops = { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2002 | .tx = ath9k_tx, |
| 2003 | .start = ath9k_start, |
| 2004 | .stop = ath9k_stop, |
| 2005 | .add_interface = ath9k_add_interface, |
| 2006 | .remove_interface = ath9k_remove_interface, |
| 2007 | .config = ath9k_config, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2008 | .configure_filter = ath9k_configure_filter, |
Johannes Berg | 4ca7786 | 2010-02-19 19:06:56 +0100 | [diff] [blame] | 2009 | .sta_add = ath9k_sta_add, |
| 2010 | .sta_remove = ath9k_sta_remove, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2011 | .conf_tx = ath9k_conf_tx, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2012 | .bss_info_changed = ath9k_bss_info_changed, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2013 | .set_key = ath9k_set_key, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2014 | .get_tsf = ath9k_get_tsf, |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2015 | .set_tsf = ath9k_set_tsf, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2016 | .reset_tsf = ath9k_reset_tsf, |
Johannes Berg | 4233df6 | 2008-10-13 13:35:05 +0200 | [diff] [blame] | 2017 | .ampdu_action = ath9k_ampdu_action, |
Benoit Papillault | 62dad5b | 2010-04-28 00:08:24 +0200 | [diff] [blame] | 2018 | .get_survey = ath9k_get_survey, |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2019 | .sw_scan_start = ath9k_sw_scan_start, |
| 2020 | .sw_scan_complete = ath9k_sw_scan_complete, |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 2021 | .rfkill_poll = ath9k_rfkill_poll_state, |
Felix Fietkau | e239d85 | 2010-01-15 02:34:58 +0100 | [diff] [blame] | 2022 | .set_coverage_class = ath9k_set_coverage_class, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2023 | }; |