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 | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 19 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 20 | static char *dev_info = "ath9k"; |
| 21 | |
| 22 | MODULE_AUTHOR("Atheros Communications"); |
| 23 | MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); |
| 24 | MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); |
| 25 | MODULE_LICENSE("Dual BSD/GPL"); |
| 26 | |
Jouni Malinen | b3bd89c | 2009-02-24 13:42:01 +0200 | [diff] [blame] | 27 | static int modparam_nohwcrypt; |
| 28 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); |
| 29 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); |
| 30 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 31 | /* We use the hw_value as an index into our private channel structure */ |
| 32 | |
| 33 | #define CHAN2G(_freq, _idx) { \ |
| 34 | .center_freq = (_freq), \ |
| 35 | .hw_value = (_idx), \ |
Luis R. Rodriguez | eeddfd9 | 2009-05-19 17:49:46 -0400 | [diff] [blame] | 36 | .max_power = 20, \ |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 37 | } |
| 38 | |
| 39 | #define CHAN5G(_freq, _idx) { \ |
| 40 | .band = IEEE80211_BAND_5GHZ, \ |
| 41 | .center_freq = (_freq), \ |
| 42 | .hw_value = (_idx), \ |
Luis R. Rodriguez | eeddfd9 | 2009-05-19 17:49:46 -0400 | [diff] [blame] | 43 | .max_power = 20, \ |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 44 | } |
| 45 | |
| 46 | /* Some 2 GHz radios are actually tunable on 2312-2732 |
| 47 | * on 5 MHz steps, we support the channels which we know |
| 48 | * we have calibration data for all cards though to make |
| 49 | * this static */ |
| 50 | static struct ieee80211_channel ath9k_2ghz_chantable[] = { |
| 51 | CHAN2G(2412, 0), /* Channel 1 */ |
| 52 | CHAN2G(2417, 1), /* Channel 2 */ |
| 53 | CHAN2G(2422, 2), /* Channel 3 */ |
| 54 | CHAN2G(2427, 3), /* Channel 4 */ |
| 55 | CHAN2G(2432, 4), /* Channel 5 */ |
| 56 | CHAN2G(2437, 5), /* Channel 6 */ |
| 57 | CHAN2G(2442, 6), /* Channel 7 */ |
| 58 | CHAN2G(2447, 7), /* Channel 8 */ |
| 59 | CHAN2G(2452, 8), /* Channel 9 */ |
| 60 | CHAN2G(2457, 9), /* Channel 10 */ |
| 61 | CHAN2G(2462, 10), /* Channel 11 */ |
| 62 | CHAN2G(2467, 11), /* Channel 12 */ |
| 63 | CHAN2G(2472, 12), /* Channel 13 */ |
| 64 | CHAN2G(2484, 13), /* Channel 14 */ |
| 65 | }; |
| 66 | |
| 67 | /* Some 5 GHz radios are actually tunable on XXXX-YYYY |
| 68 | * on 5 MHz steps, we support the channels which we know |
| 69 | * we have calibration data for all cards though to make |
| 70 | * this static */ |
| 71 | static struct ieee80211_channel ath9k_5ghz_chantable[] = { |
| 72 | /* _We_ call this UNII 1 */ |
| 73 | CHAN5G(5180, 14), /* Channel 36 */ |
| 74 | CHAN5G(5200, 15), /* Channel 40 */ |
| 75 | CHAN5G(5220, 16), /* Channel 44 */ |
| 76 | CHAN5G(5240, 17), /* Channel 48 */ |
| 77 | /* _We_ call this UNII 2 */ |
| 78 | CHAN5G(5260, 18), /* Channel 52 */ |
| 79 | CHAN5G(5280, 19), /* Channel 56 */ |
| 80 | CHAN5G(5300, 20), /* Channel 60 */ |
| 81 | CHAN5G(5320, 21), /* Channel 64 */ |
| 82 | /* _We_ call this "Middle band" */ |
| 83 | CHAN5G(5500, 22), /* Channel 100 */ |
| 84 | CHAN5G(5520, 23), /* Channel 104 */ |
| 85 | CHAN5G(5540, 24), /* Channel 108 */ |
| 86 | CHAN5G(5560, 25), /* Channel 112 */ |
| 87 | CHAN5G(5580, 26), /* Channel 116 */ |
| 88 | CHAN5G(5600, 27), /* Channel 120 */ |
| 89 | CHAN5G(5620, 28), /* Channel 124 */ |
| 90 | CHAN5G(5640, 29), /* Channel 128 */ |
| 91 | CHAN5G(5660, 30), /* Channel 132 */ |
| 92 | CHAN5G(5680, 31), /* Channel 136 */ |
| 93 | CHAN5G(5700, 32), /* Channel 140 */ |
| 94 | /* _We_ call this UNII 3 */ |
| 95 | CHAN5G(5745, 33), /* Channel 149 */ |
| 96 | CHAN5G(5765, 34), /* Channel 153 */ |
| 97 | CHAN5G(5785, 35), /* Channel 157 */ |
| 98 | CHAN5G(5805, 36), /* Channel 161 */ |
| 99 | CHAN5G(5825, 37), /* Channel 165 */ |
| 100 | }; |
| 101 | |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 102 | static void ath_cache_conf_rate(struct ath_softc *sc, |
| 103 | struct ieee80211_conf *conf) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 104 | { |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 105 | switch (conf->channel->band) { |
| 106 | case IEEE80211_BAND_2GHZ: |
| 107 | if (conf_is_ht20(conf)) |
| 108 | sc->cur_rate_table = |
| 109 | sc->hw_rate_table[ATH9K_MODE_11NG_HT20]; |
| 110 | else if (conf_is_ht40_minus(conf)) |
| 111 | sc->cur_rate_table = |
| 112 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS]; |
| 113 | else if (conf_is_ht40_plus(conf)) |
| 114 | sc->cur_rate_table = |
| 115 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS]; |
Luis R. Rodriguez | 9674225 | 2008-12-23 15:58:38 -0800 | [diff] [blame] | 116 | else |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 117 | sc->cur_rate_table = |
| 118 | sc->hw_rate_table[ATH9K_MODE_11G]; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 119 | break; |
| 120 | case IEEE80211_BAND_5GHZ: |
| 121 | if (conf_is_ht20(conf)) |
| 122 | sc->cur_rate_table = |
| 123 | sc->hw_rate_table[ATH9K_MODE_11NA_HT20]; |
| 124 | else if (conf_is_ht40_minus(conf)) |
| 125 | sc->cur_rate_table = |
| 126 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS]; |
| 127 | else if (conf_is_ht40_plus(conf)) |
| 128 | sc->cur_rate_table = |
| 129 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS]; |
| 130 | else |
Luis R. Rodriguez | 9674225 | 2008-12-23 15:58:38 -0800 | [diff] [blame] | 131 | sc->cur_rate_table = |
| 132 | sc->hw_rate_table[ATH9K_MODE_11A]; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 133 | break; |
| 134 | default: |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 135 | BUG_ON(1); |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 136 | break; |
| 137 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | static void ath_update_txpow(struct ath_softc *sc) |
| 141 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 142 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 143 | u32 txpow; |
| 144 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 145 | if (sc->curtxpow != sc->config.txpowlimit) { |
| 146 | ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 147 | /* read back in case value is clamped */ |
| 148 | ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 149 | sc->curtxpow = txpow; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 150 | } |
| 151 | } |
| 152 | |
| 153 | static u8 parse_mpdudensity(u8 mpdudensity) |
| 154 | { |
| 155 | /* |
| 156 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": |
| 157 | * 0 for no restriction |
| 158 | * 1 for 1/4 us |
| 159 | * 2 for 1/2 us |
| 160 | * 3 for 1 us |
| 161 | * 4 for 2 us |
| 162 | * 5 for 4 us |
| 163 | * 6 for 8 us |
| 164 | * 7 for 16 us |
| 165 | */ |
| 166 | switch (mpdudensity) { |
| 167 | case 0: |
| 168 | return 0; |
| 169 | case 1: |
| 170 | case 2: |
| 171 | case 3: |
| 172 | /* Our lower layer calculations limit our precision to |
| 173 | 1 microsecond */ |
| 174 | return 1; |
| 175 | case 4: |
| 176 | return 2; |
| 177 | case 5: |
| 178 | return 4; |
| 179 | case 6: |
| 180 | return 8; |
| 181 | case 7: |
| 182 | return 16; |
| 183 | default: |
| 184 | return 0; |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) |
| 189 | { |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 190 | const struct ath_rate_table *rate_table = NULL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 191 | struct ieee80211_supported_band *sband; |
| 192 | struct ieee80211_rate *rate; |
| 193 | int i, maxrates; |
| 194 | |
| 195 | switch (band) { |
| 196 | case IEEE80211_BAND_2GHZ: |
| 197 | rate_table = sc->hw_rate_table[ATH9K_MODE_11G]; |
| 198 | break; |
| 199 | case IEEE80211_BAND_5GHZ: |
| 200 | rate_table = sc->hw_rate_table[ATH9K_MODE_11A]; |
| 201 | break; |
| 202 | default: |
| 203 | break; |
| 204 | } |
| 205 | |
| 206 | if (rate_table == NULL) |
| 207 | return; |
| 208 | |
| 209 | sband = &sc->sbands[band]; |
| 210 | rate = sc->rates[band]; |
| 211 | |
| 212 | if (rate_table->rate_cnt > ATH_RATE_MAX) |
| 213 | maxrates = ATH_RATE_MAX; |
| 214 | else |
| 215 | maxrates = rate_table->rate_cnt; |
| 216 | |
| 217 | for (i = 0; i < maxrates; i++) { |
| 218 | rate[i].bitrate = rate_table->info[i].ratekbps / 100; |
| 219 | rate[i].hw_value = rate_table->info[i].ratecode; |
Sujith | f46730d | 2009-01-27 13:51:03 +0530 | [diff] [blame] | 220 | if (rate_table->info[i].short_preamble) { |
| 221 | rate[i].hw_value_short = rate_table->info[i].ratecode | |
| 222 | rate_table->info[i].short_preamble; |
| 223 | rate[i].flags = IEEE80211_RATE_SHORT_PREAMBLE; |
| 224 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 225 | sband->n_bitrates++; |
Sujith | f46730d | 2009-01-27 13:51:03 +0530 | [diff] [blame] | 226 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 227 | DPRINTF(sc, ATH_DBG_CONFIG, "Rate: %2dMbps, ratecode: %2d\n", |
| 228 | rate[i].bitrate / 10, rate[i].hw_value); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 229 | } |
| 230 | } |
| 231 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 232 | static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, |
| 233 | struct ieee80211_hw *hw) |
| 234 | { |
| 235 | struct ieee80211_channel *curchan = hw->conf.channel; |
| 236 | struct ath9k_channel *channel; |
| 237 | u8 chan_idx; |
| 238 | |
| 239 | chan_idx = curchan->hw_value; |
| 240 | channel = &sc->sc_ah->channels[chan_idx]; |
| 241 | ath9k_update_ichannel(sc, hw, channel); |
| 242 | return channel; |
| 243 | } |
| 244 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 245 | /* |
| 246 | * Set/change channels. If the channel is really being changed, it's done |
| 247 | * by reseting the chip. To accomplish this we must first cleanup any pending |
| 248 | * DMA, then restart stuff. |
| 249 | */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 250 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, |
| 251 | struct ath9k_channel *hchan) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 252 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 253 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 254 | bool fastcc = true, stopped; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 255 | struct ieee80211_channel *channel = hw->conf.channel; |
| 256 | int r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 257 | |
| 258 | if (sc->sc_flags & SC_OP_INVALID) |
| 259 | return -EIO; |
| 260 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 261 | ath9k_ps_wakeup(sc); |
| 262 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 263 | /* |
| 264 | * This is only performed if the channel settings have |
| 265 | * actually changed. |
| 266 | * |
| 267 | * To switch channels clear any pending DMA operations; |
| 268 | * wait long enough for the RX fifo to drain, reset the |
| 269 | * hardware at the new frequency, and then re-enable |
| 270 | * the relevant bits of the h/w. |
| 271 | */ |
| 272 | ath9k_hw_set_interrupts(ah, 0); |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 273 | ath_drain_all_txq(sc, false); |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 274 | stopped = ath_stoprecv(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 275 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 276 | /* XXX: do not flush receive queue here. We don't want |
| 277 | * to flush data frames already in queue because of |
| 278 | * changing channel. */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 279 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 280 | if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET)) |
| 281 | fastcc = false; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 282 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 283 | DPRINTF(sc, ATH_DBG_CONFIG, |
| 284 | "(%u MHz) -> (%u MHz), chanwidth: %d\n", |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 285 | sc->sc_ah->curchan->channel, |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 286 | channel->center_freq, sc->tx_chan_width); |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 287 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 288 | spin_lock_bh(&sc->sc_resetlock); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 289 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 290 | r = ath9k_hw_reset(ah, hchan, fastcc); |
| 291 | if (r) { |
| 292 | DPRINTF(sc, ATH_DBG_FATAL, |
| 293 | "Unable to reset channel (%u Mhz) " |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 294 | "reset status %d\n", |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 295 | channel->center_freq, r); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 296 | spin_unlock_bh(&sc->sc_resetlock); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 297 | goto ps_restore; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 298 | } |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 299 | spin_unlock_bh(&sc->sc_resetlock); |
| 300 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 301 | sc->sc_flags &= ~SC_OP_FULL_RESET; |
| 302 | |
| 303 | if (ath_startrecv(sc) != 0) { |
| 304 | DPRINTF(sc, ATH_DBG_FATAL, |
| 305 | "Unable to restart recv logic\n"); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 306 | r = -EIO; |
| 307 | goto ps_restore; |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 308 | } |
| 309 | |
| 310 | ath_cache_conf_rate(sc, &hw->conf); |
| 311 | ath_update_txpow(sc); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 312 | ath9k_hw_set_interrupts(ah, sc->imask); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 313 | |
| 314 | ps_restore: |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 315 | ath9k_ps_restore(sc); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 316 | return r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | /* |
| 320 | * This routine performs the periodic noise floor calibration function |
| 321 | * that is used to adjust and optimize the chip performance. This |
| 322 | * takes environmental changes (location, temperature) into account. |
| 323 | * When the task is complete, it reschedules itself depending on the |
| 324 | * appropriate interval that was calculated. |
| 325 | */ |
| 326 | static void ath_ani_calibrate(unsigned long data) |
| 327 | { |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 328 | struct ath_softc *sc = (struct ath_softc *)data; |
| 329 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 330 | bool longcal = false; |
| 331 | bool shortcal = false; |
| 332 | bool aniflag = false; |
| 333 | unsigned int timestamp = jiffies_to_msecs(jiffies); |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 334 | u32 cal_interval, short_cal_interval; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 335 | |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 336 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
| 337 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 338 | |
| 339 | /* |
| 340 | * don't calibrate when we're scanning. |
| 341 | * we are most likely not on our home channel. |
| 342 | */ |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 343 | spin_lock(&sc->ani_lock); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 344 | if (sc->sc_flags & SC_OP_SCANNING) |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 345 | goto set_timer; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 346 | |
Jouni Malinen | 1ffc1c6 | 2009-05-19 17:01:39 +0300 | [diff] [blame] | 347 | /* Only calibrate if awake */ |
| 348 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) |
| 349 | goto set_timer; |
| 350 | |
| 351 | ath9k_ps_wakeup(sc); |
| 352 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 353 | /* Long calibration runs independently of short calibration. */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 354 | if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 355 | longcal = true; |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 356 | DPRINTF(sc, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 357 | sc->ani.longcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 358 | } |
| 359 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 360 | /* Short calibration applies only while caldone is false */ |
| 361 | if (!sc->ani.caldone) { |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 362 | if ((timestamp - sc->ani.shortcal_timer) >= short_cal_interval) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 363 | shortcal = true; |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 364 | DPRINTF(sc, ATH_DBG_ANI, "shortcal @%lu\n", jiffies); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 365 | sc->ani.shortcal_timer = timestamp; |
| 366 | sc->ani.resetcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 367 | } |
| 368 | } else { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 369 | if ((timestamp - sc->ani.resetcal_timer) >= |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 370 | ATH_RESTART_CALINTERVAL) { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 371 | sc->ani.caldone = ath9k_hw_reset_calvalid(ah); |
| 372 | if (sc->ani.caldone) |
| 373 | sc->ani.resetcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 374 | } |
| 375 | } |
| 376 | |
| 377 | /* Verify whether we must check ANI */ |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 378 | if ((timestamp - sc->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 379 | aniflag = true; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 380 | sc->ani.checkani_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 381 | } |
| 382 | |
| 383 | /* Skip all processing if there's nothing to do. */ |
| 384 | if (longcal || shortcal || aniflag) { |
| 385 | /* Call ANI routine if necessary */ |
| 386 | if (aniflag) |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 387 | ath9k_hw_ani_monitor(ah, &sc->nodestats, ah->curchan); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 388 | |
| 389 | /* Perform calibration if necessary */ |
| 390 | if (longcal || shortcal) { |
Sujith | 379f044 | 2009-04-13 21:56:48 +0530 | [diff] [blame] | 391 | sc->ani.caldone = ath9k_hw_calibrate(ah, ah->curchan, |
| 392 | sc->rx_chainmask, longcal); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 393 | |
Sujith | 379f044 | 2009-04-13 21:56:48 +0530 | [diff] [blame] | 394 | if (longcal) |
| 395 | sc->ani.noise_floor = ath9k_hw_getchan_noise(ah, |
| 396 | ah->curchan); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 397 | |
Sujith | 379f044 | 2009-04-13 21:56:48 +0530 | [diff] [blame] | 398 | DPRINTF(sc, ATH_DBG_ANI," calibrate chan %u/%x nf: %d\n", |
| 399 | ah->curchan->channel, ah->curchan->channelFlags, |
| 400 | sc->ani.noise_floor); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 401 | } |
| 402 | } |
| 403 | |
Jouni Malinen | 1ffc1c6 | 2009-05-19 17:01:39 +0300 | [diff] [blame] | 404 | ath9k_ps_restore(sc); |
| 405 | |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 406 | set_timer: |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 407 | spin_unlock(&sc->ani_lock); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 408 | /* |
| 409 | * Set timer interval based on previous results. |
| 410 | * The interval must be the shortest necessary to satisfy ANI, |
| 411 | * short calibration and long calibration. |
| 412 | */ |
Sujith | aac9207 | 2008-12-02 18:37:54 +0530 | [diff] [blame] | 413 | cal_interval = ATH_LONG_CALINTERVAL; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 414 | if (sc->sc_ah->config.enable_ani) |
Sujith | aac9207 | 2008-12-02 18:37:54 +0530 | [diff] [blame] | 415 | cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 416 | if (!sc->ani.caldone) |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 417 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 418 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 419 | mod_timer(&sc->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 420 | } |
| 421 | |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 422 | static void ath_start_ani(struct ath_softc *sc) |
| 423 | { |
| 424 | unsigned long timestamp = jiffies_to_msecs(jiffies); |
| 425 | |
| 426 | sc->ani.longcal_timer = timestamp; |
| 427 | sc->ani.shortcal_timer = timestamp; |
| 428 | sc->ani.checkani_timer = timestamp; |
| 429 | |
| 430 | mod_timer(&sc->ani.timer, |
| 431 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); |
| 432 | } |
| 433 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 434 | /* |
| 435 | * Update tx/rx chainmask. For legacy association, |
| 436 | * hard code chainmask to 1x1, for 11n association, use |
Vasanthakumar Thiagarajan | c97c92d | 2009-01-02 15:35:46 +0530 | [diff] [blame] | 437 | * the chainmask configuration, for bt coexistence, use |
| 438 | * the chainmask configuration even in legacy mode. |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 439 | */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 440 | void ath_update_chainmask(struct ath_softc *sc, int is_ht) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 441 | { |
Vasanthakumar Thiagarajan | c97c92d | 2009-01-02 15:35:46 +0530 | [diff] [blame] | 442 | if (is_ht || |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 443 | (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX)) { |
| 444 | sc->tx_chainmask = sc->sc_ah->caps.tx_chainmask; |
| 445 | sc->rx_chainmask = sc->sc_ah->caps.rx_chainmask; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 446 | } else { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 447 | sc->tx_chainmask = 1; |
| 448 | sc->rx_chainmask = 1; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 449 | } |
| 450 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 451 | DPRINTF(sc, ATH_DBG_CONFIG, "tx chmask: %d, rx chmask: %d\n", |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 452 | sc->tx_chainmask, sc->rx_chainmask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 453 | } |
| 454 | |
| 455 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) |
| 456 | { |
| 457 | struct ath_node *an; |
| 458 | |
| 459 | an = (struct ath_node *)sta->drv_priv; |
| 460 | |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 461 | if (sc->sc_flags & SC_OP_TXAGGR) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 462 | ath_tx_node_init(sc, an); |
Sujith | 9e98ac6 | 2009-07-23 15:32:34 +0530 | [diff] [blame] | 463 | an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 464 | sta->ht_cap.ampdu_factor); |
| 465 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); |
Senthil Balasubramanian | a59b5a5 | 2009-07-14 20:17:07 -0400 | [diff] [blame] | 466 | an->last_rssi = ATH_RSSI_DUMMY_MARKER; |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 467 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 468 | } |
| 469 | |
| 470 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) |
| 471 | { |
| 472 | struct ath_node *an = (struct ath_node *)sta->drv_priv; |
| 473 | |
| 474 | if (sc->sc_flags & SC_OP_TXAGGR) |
| 475 | ath_tx_node_cleanup(sc, an); |
| 476 | } |
| 477 | |
| 478 | static void ath9k_tasklet(unsigned long data) |
| 479 | { |
| 480 | struct ath_softc *sc = (struct ath_softc *)data; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 481 | u32 status = sc->intrstatus; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 482 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 483 | ath9k_ps_wakeup(sc); |
| 484 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 485 | if (status & ATH9K_INT_FATAL) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 486 | ath_reset(sc, false); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 487 | ath9k_ps_restore(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 488 | return; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 489 | } |
| 490 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 491 | if (status & (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN)) { |
| 492 | spin_lock_bh(&sc->rx.rxflushlock); |
| 493 | ath_rx_tasklet(sc, 0); |
| 494 | spin_unlock_bh(&sc->rx.rxflushlock); |
| 495 | } |
| 496 | |
| 497 | if (status & ATH9K_INT_TX) |
| 498 | ath_tx_tasklet(sc); |
| 499 | |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 500 | if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { |
Jouni Malinen | 54ce846 | 2009-05-19 17:01:40 +0300 | [diff] [blame] | 501 | /* |
| 502 | * TSF sync does not look correct; remain awake to sync with |
| 503 | * the next Beacon. |
| 504 | */ |
| 505 | DPRINTF(sc, ATH_DBG_PS, "TSFOOR - Sync with next Beacon\n"); |
Jouni Malinen | ccdfeab | 2009-05-20 21:59:08 +0300 | [diff] [blame] | 506 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON | SC_OP_BEACON_SYNC; |
Jouni Malinen | 54ce846 | 2009-05-19 17:01:40 +0300 | [diff] [blame] | 507 | } |
| 508 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 509 | /* re-enable hardware interrupt */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 510 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 511 | ath9k_ps_restore(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 512 | } |
| 513 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 514 | irqreturn_t ath_isr(int irq, void *dev) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 515 | { |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 516 | #define SCHED_INTR ( \ |
| 517 | ATH9K_INT_FATAL | \ |
| 518 | ATH9K_INT_RXORN | \ |
| 519 | ATH9K_INT_RXEOL | \ |
| 520 | ATH9K_INT_RX | \ |
| 521 | ATH9K_INT_TX | \ |
| 522 | ATH9K_INT_BMISS | \ |
| 523 | ATH9K_INT_CST | \ |
| 524 | ATH9K_INT_TSFOOR) |
| 525 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 526 | struct ath_softc *sc = dev; |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 527 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 528 | enum ath9k_int status; |
| 529 | bool sched = false; |
| 530 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 531 | /* |
| 532 | * The hardware is not ready/present, don't |
| 533 | * touch anything. Note this can happen early |
| 534 | * on if the IRQ is shared. |
| 535 | */ |
| 536 | if (sc->sc_flags & SC_OP_INVALID) |
| 537 | return IRQ_NONE; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 538 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 539 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 540 | /* shared irq, not for us */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 541 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 542 | if (!ath9k_hw_intrpend(ah)) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 543 | return IRQ_NONE; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 544 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 545 | /* |
| 546 | * Figure out the reason(s) for the interrupt. Note |
| 547 | * that the hal returns a pseudo-ISR that may include |
| 548 | * bits we haven't explicitly enabled so we mask the |
| 549 | * value to insure we only process bits we requested. |
| 550 | */ |
| 551 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ |
| 552 | status &= sc->imask; /* discard unasked-for bits */ |
| 553 | |
| 554 | /* |
| 555 | * If there are no status bits set, then this interrupt was not |
| 556 | * for me (should have been caught above). |
| 557 | */ |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 558 | if (!status) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 559 | return IRQ_NONE; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 560 | |
| 561 | /* Cache the status */ |
| 562 | sc->intrstatus = status; |
| 563 | |
| 564 | if (status & SCHED_INTR) |
| 565 | sched = true; |
| 566 | |
| 567 | /* |
| 568 | * If a FATAL or RXORN interrupt is received, we have to reset the |
| 569 | * chip immediately. |
| 570 | */ |
| 571 | if (status & (ATH9K_INT_FATAL | ATH9K_INT_RXORN)) |
| 572 | goto chip_reset; |
| 573 | |
| 574 | if (status & ATH9K_INT_SWBA) |
| 575 | tasklet_schedule(&sc->bcon_tasklet); |
| 576 | |
| 577 | if (status & ATH9K_INT_TXURN) |
| 578 | ath9k_hw_updatetxtriglevel(ah, true); |
| 579 | |
| 580 | if (status & ATH9K_INT_MIB) { |
| 581 | /* |
| 582 | * Disable interrupts until we service the MIB |
| 583 | * interrupt; otherwise it will continue to |
| 584 | * fire. |
| 585 | */ |
| 586 | ath9k_hw_set_interrupts(ah, 0); |
| 587 | /* |
| 588 | * Let the hal handle the event. We assume |
| 589 | * it will clear whatever condition caused |
| 590 | * the interrupt. |
| 591 | */ |
| 592 | ath9k_hw_procmibevent(ah, &sc->nodestats); |
| 593 | ath9k_hw_set_interrupts(ah, sc->imask); |
| 594 | } |
| 595 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 596 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
| 597 | if (status & ATH9K_INT_TIM_TIMER) { |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 598 | /* Clear RxAbort bit so that we can |
| 599 | * receive frames */ |
| 600 | ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 601 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 602 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; |
| 603 | } |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 604 | |
| 605 | chip_reset: |
| 606 | |
Sujith | 817e11d | 2008-12-07 21:42:44 +0530 | [diff] [blame] | 607 | ath_debug_stat_interrupt(sc, status); |
| 608 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 609 | if (sched) { |
| 610 | /* turn off every interrupt except SWBA */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 611 | ath9k_hw_set_interrupts(ah, (sc->imask & ATH9K_INT_SWBA)); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 612 | tasklet_schedule(&sc->intr_tq); |
| 613 | } |
| 614 | |
| 615 | return IRQ_HANDLED; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 616 | |
| 617 | #undef SCHED_INTR |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 618 | } |
| 619 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 620 | static u32 ath_get_extchanmode(struct ath_softc *sc, |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 621 | struct ieee80211_channel *chan, |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 622 | enum nl80211_channel_type channel_type) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 623 | { |
| 624 | u32 chanmode = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 625 | |
| 626 | switch (chan->band) { |
| 627 | case IEEE80211_BAND_2GHZ: |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 628 | switch(channel_type) { |
| 629 | case NL80211_CHAN_NO_HT: |
| 630 | case NL80211_CHAN_HT20: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 631 | chanmode = CHANNEL_G_HT20; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 632 | break; |
| 633 | case NL80211_CHAN_HT40PLUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 634 | chanmode = CHANNEL_G_HT40PLUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 635 | break; |
| 636 | case NL80211_CHAN_HT40MINUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 637 | chanmode = CHANNEL_G_HT40MINUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 638 | break; |
| 639 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 640 | break; |
| 641 | case IEEE80211_BAND_5GHZ: |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 642 | switch(channel_type) { |
| 643 | case NL80211_CHAN_NO_HT: |
| 644 | case NL80211_CHAN_HT20: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 645 | chanmode = CHANNEL_A_HT20; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 646 | break; |
| 647 | case NL80211_CHAN_HT40PLUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 648 | chanmode = CHANNEL_A_HT40PLUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 649 | break; |
| 650 | case NL80211_CHAN_HT40MINUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 651 | chanmode = CHANNEL_A_HT40MINUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 652 | break; |
| 653 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 654 | break; |
| 655 | default: |
| 656 | break; |
| 657 | } |
| 658 | |
| 659 | return chanmode; |
| 660 | } |
| 661 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 662 | static int ath_setkey_tkip(struct ath_softc *sc, u16 keyix, const u8 *key, |
Jouni Malinen | 3f53dd6 | 2009-02-26 11:18:46 +0200 | [diff] [blame] | 663 | struct ath9k_keyval *hk, const u8 *addr, |
| 664 | bool authenticator) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 665 | { |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 666 | const u8 *key_rxmic; |
| 667 | const u8 *key_txmic; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 668 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 669 | key_txmic = key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY; |
| 670 | key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 671 | |
| 672 | if (addr == NULL) { |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 673 | /* |
| 674 | * Group key installation - only two key cache entries are used |
| 675 | * regardless of splitmic capability since group key is only |
| 676 | * used either for TX or RX. |
| 677 | */ |
Jouni Malinen | 3f53dd6 | 2009-02-26 11:18:46 +0200 | [diff] [blame] | 678 | if (authenticator) { |
| 679 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); |
| 680 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic)); |
| 681 | } else { |
| 682 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
| 683 | memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic)); |
| 684 | } |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 685 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 686 | } |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 687 | if (!sc->splitmic) { |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 688 | /* TX and RX keys share the same key cache entry. */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 689 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
| 690 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic)); |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 691 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, addr); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 692 | } |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 693 | |
| 694 | /* Separate key cache entries for TX and RX */ |
| 695 | |
| 696 | /* TX key goes at first index, RX key at +32. */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 697 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 698 | if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) { |
| 699 | /* TX MIC entry failed. No need to proceed further */ |
Sujith | d8baa93 | 2009-03-30 15:28:25 +0530 | [diff] [blame] | 700 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 701 | "Setting TX MIC Key Failed\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 702 | return 0; |
| 703 | } |
| 704 | |
| 705 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
| 706 | /* XXX delete tx key on failure? */ |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 707 | return ath9k_hw_set_keycache_entry(sc->sc_ah, keyix + 32, hk, addr); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 708 | } |
| 709 | |
| 710 | static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc) |
| 711 | { |
| 712 | int i; |
| 713 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 714 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
| 715 | if (test_bit(i, sc->keymap) || |
| 716 | test_bit(i + 64, sc->keymap)) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 717 | continue; /* At least one part of TKIP key allocated */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 718 | if (sc->splitmic && |
| 719 | (test_bit(i + 32, sc->keymap) || |
| 720 | test_bit(i + 64 + 32, sc->keymap))) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 721 | continue; /* At least one part of TKIP key allocated */ |
| 722 | |
| 723 | /* Found a free slot for a TKIP key */ |
| 724 | return i; |
| 725 | } |
| 726 | return -1; |
| 727 | } |
| 728 | |
| 729 | static int ath_reserve_key_cache_slot(struct ath_softc *sc) |
| 730 | { |
| 731 | int i; |
| 732 | |
| 733 | /* First, try to find slots that would not be available for TKIP. */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 734 | if (sc->splitmic) { |
| 735 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 4; i++) { |
| 736 | if (!test_bit(i, sc->keymap) && |
| 737 | (test_bit(i + 32, sc->keymap) || |
| 738 | test_bit(i + 64, sc->keymap) || |
| 739 | test_bit(i + 64 + 32, sc->keymap))) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 740 | return i; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 741 | if (!test_bit(i + 32, sc->keymap) && |
| 742 | (test_bit(i, sc->keymap) || |
| 743 | test_bit(i + 64, sc->keymap) || |
| 744 | test_bit(i + 64 + 32, sc->keymap))) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 745 | return i + 32; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 746 | if (!test_bit(i + 64, sc->keymap) && |
| 747 | (test_bit(i , sc->keymap) || |
| 748 | test_bit(i + 32, sc->keymap) || |
| 749 | test_bit(i + 64 + 32, sc->keymap))) |
Jouni Malinen | ea61213 | 2008-12-18 14:31:10 +0200 | [diff] [blame] | 750 | return i + 64; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 751 | if (!test_bit(i + 64 + 32, sc->keymap) && |
| 752 | (test_bit(i, sc->keymap) || |
| 753 | test_bit(i + 32, sc->keymap) || |
| 754 | test_bit(i + 64, sc->keymap))) |
Jouni Malinen | ea61213 | 2008-12-18 14:31:10 +0200 | [diff] [blame] | 755 | return i + 64 + 32; |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 756 | } |
| 757 | } else { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 758 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
| 759 | if (!test_bit(i, sc->keymap) && |
| 760 | test_bit(i + 64, sc->keymap)) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 761 | return i; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 762 | if (test_bit(i, sc->keymap) && |
| 763 | !test_bit(i + 64, sc->keymap)) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 764 | return i + 64; |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | /* No partially used TKIP slots, pick any available slot */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 769 | for (i = IEEE80211_WEP_NKID; i < sc->keymax; i++) { |
Jouni Malinen | be2864c | 2008-12-18 14:33:00 +0200 | [diff] [blame] | 770 | /* Do not allow slots that could be needed for TKIP group keys |
| 771 | * to be used. This limitation could be removed if we know that |
| 772 | * TKIP will not be used. */ |
| 773 | if (i >= 64 && i < 64 + IEEE80211_WEP_NKID) |
| 774 | continue; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 775 | if (sc->splitmic) { |
Jouni Malinen | be2864c | 2008-12-18 14:33:00 +0200 | [diff] [blame] | 776 | if (i >= 32 && i < 32 + IEEE80211_WEP_NKID) |
| 777 | continue; |
| 778 | if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID) |
| 779 | continue; |
| 780 | } |
| 781 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 782 | if (!test_bit(i, sc->keymap)) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 783 | return i; /* Found a free slot for a key */ |
| 784 | } |
| 785 | |
| 786 | /* No free slot found */ |
| 787 | return -1; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 788 | } |
| 789 | |
| 790 | static int ath_key_config(struct ath_softc *sc, |
Jouni Malinen | 3f53dd6 | 2009-02-26 11:18:46 +0200 | [diff] [blame] | 791 | struct ieee80211_vif *vif, |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 792 | struct ieee80211_sta *sta, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 793 | struct ieee80211_key_conf *key) |
| 794 | { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 795 | struct ath9k_keyval hk; |
| 796 | const u8 *mac = NULL; |
| 797 | int ret = 0; |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 798 | int idx; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 799 | |
| 800 | memset(&hk, 0, sizeof(hk)); |
| 801 | |
| 802 | switch (key->alg) { |
| 803 | case ALG_WEP: |
| 804 | hk.kv_type = ATH9K_CIPHER_WEP; |
| 805 | break; |
| 806 | case ALG_TKIP: |
| 807 | hk.kv_type = ATH9K_CIPHER_TKIP; |
| 808 | break; |
| 809 | case ALG_CCMP: |
| 810 | hk.kv_type = ATH9K_CIPHER_AES_CCM; |
| 811 | break; |
| 812 | default: |
Jouni Malinen | ca470b2 | 2009-01-08 13:32:12 +0200 | [diff] [blame] | 813 | return -EOPNOTSUPP; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 814 | } |
| 815 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 816 | hk.kv_len = key->keylen; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 817 | memcpy(hk.kv_val, key->key, key->keylen); |
| 818 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 819 | if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { |
| 820 | /* For now, use the default keys for broadcast keys. This may |
| 821 | * need to change with virtual interfaces. */ |
| 822 | idx = key->keyidx; |
| 823 | } else if (key->keyidx) { |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 824 | if (WARN_ON(!sta)) |
| 825 | return -EOPNOTSUPP; |
| 826 | mac = sta->addr; |
| 827 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 828 | if (vif->type != NL80211_IFTYPE_AP) { |
| 829 | /* Only keyidx 0 should be used with unicast key, but |
| 830 | * allow this for client mode for now. */ |
| 831 | idx = key->keyidx; |
| 832 | } else |
| 833 | return -EIO; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 834 | } else { |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 835 | if (WARN_ON(!sta)) |
| 836 | return -EOPNOTSUPP; |
| 837 | mac = sta->addr; |
| 838 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 839 | if (key->alg == ALG_TKIP) |
| 840 | idx = ath_reserve_key_cache_slot_tkip(sc); |
| 841 | else |
| 842 | idx = ath_reserve_key_cache_slot(sc); |
| 843 | if (idx < 0) |
Jouni Malinen | ca470b2 | 2009-01-08 13:32:12 +0200 | [diff] [blame] | 844 | return -ENOSPC; /* no free key cache entries */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 845 | } |
| 846 | |
| 847 | if (key->alg == ALG_TKIP) |
Jouni Malinen | 3f53dd6 | 2009-02-26 11:18:46 +0200 | [diff] [blame] | 848 | ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac, |
| 849 | vif->type == NL80211_IFTYPE_AP); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 850 | else |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 851 | ret = ath9k_hw_set_keycache_entry(sc->sc_ah, idx, &hk, mac); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 852 | |
| 853 | if (!ret) |
| 854 | return -EIO; |
| 855 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 856 | set_bit(idx, sc->keymap); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 857 | if (key->alg == ALG_TKIP) { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 858 | set_bit(idx + 64, sc->keymap); |
| 859 | if (sc->splitmic) { |
| 860 | set_bit(idx + 32, sc->keymap); |
| 861 | set_bit(idx + 64 + 32, sc->keymap); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 862 | } |
| 863 | } |
| 864 | |
| 865 | return idx; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 866 | } |
| 867 | |
| 868 | static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) |
| 869 | { |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 870 | ath9k_hw_keyreset(sc->sc_ah, key->hw_key_idx); |
| 871 | if (key->hw_key_idx < IEEE80211_WEP_NKID) |
| 872 | return; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 873 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 874 | clear_bit(key->hw_key_idx, sc->keymap); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 875 | if (key->alg != ALG_TKIP) |
| 876 | return; |
| 877 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 878 | clear_bit(key->hw_key_idx + 64, sc->keymap); |
| 879 | if (sc->splitmic) { |
| 880 | clear_bit(key->hw_key_idx + 32, sc->keymap); |
| 881 | clear_bit(key->hw_key_idx + 64 + 32, sc->keymap); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 882 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 883 | } |
| 884 | |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 885 | static void setup_ht_cap(struct ath_softc *sc, |
| 886 | struct ieee80211_sta_ht_cap *ht_info) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 887 | { |
Senthil Balasubramanian | 140add2 | 2009-06-24 18:56:42 +0530 | [diff] [blame] | 888 | u8 tx_streams, rx_streams; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 889 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 890 | ht_info->ht_supported = true; |
| 891 | ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | |
| 892 | IEEE80211_HT_CAP_SM_PS | |
| 893 | IEEE80211_HT_CAP_SGI_40 | |
| 894 | IEEE80211_HT_CAP_DSSSCCK40; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 895 | |
Sujith | 9e98ac6 | 2009-07-23 15:32:34 +0530 | [diff] [blame] | 896 | ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
| 897 | ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8; |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 898 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 899 | /* set up supported mcs set */ |
| 900 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
Senthil Balasubramanian | 140add2 | 2009-06-24 18:56:42 +0530 | [diff] [blame] | 901 | tx_streams = !(sc->tx_chainmask & (sc->tx_chainmask - 1)) ? 1 : 2; |
| 902 | rx_streams = !(sc->rx_chainmask & (sc->rx_chainmask - 1)) ? 1 : 2; |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 903 | |
Senthil Balasubramanian | 140add2 | 2009-06-24 18:56:42 +0530 | [diff] [blame] | 904 | if (tx_streams != rx_streams) { |
| 905 | DPRINTF(sc, ATH_DBG_CONFIG, "TX streams %d, RX streams: %d\n", |
| 906 | tx_streams, rx_streams); |
| 907 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
| 908 | ht_info->mcs.tx_params |= ((tx_streams - 1) << |
| 909 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 910 | } |
| 911 | |
Senthil Balasubramanian | 140add2 | 2009-06-24 18:56:42 +0530 | [diff] [blame] | 912 | ht_info->mcs.rx_mask[0] = 0xff; |
| 913 | if (rx_streams >= 2) |
| 914 | ht_info->mcs.rx_mask[1] = 0xff; |
| 915 | |
| 916 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 917 | } |
| 918 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 919 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 920 | struct ieee80211_vif *vif, |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 921 | struct ieee80211_bss_conf *bss_conf) |
| 922 | { |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 923 | |
| 924 | if (bss_conf->assoc) { |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 925 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n", |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 926 | bss_conf->aid, sc->curbssid); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 927 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 928 | /* New association, store aid */ |
Senthil Balasubramanian | 2664f20 | 2009-06-24 18:56:39 +0530 | [diff] [blame] | 929 | sc->curaid = bss_conf->aid; |
| 930 | ath9k_hw_write_associd(sc); |
Jouni Malinen | ccdfeab | 2009-05-20 21:59:08 +0300 | [diff] [blame] | 931 | |
Senthil Balasubramanian | 2664f20 | 2009-06-24 18:56:39 +0530 | [diff] [blame] | 932 | /* |
| 933 | * Request a re-configuration of Beacon related timers |
| 934 | * on the receipt of the first Beacon frame (i.e., |
| 935 | * after time sync with the AP). |
| 936 | */ |
| 937 | sc->sc_flags |= SC_OP_BEACON_SYNC; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 938 | |
| 939 | /* Configure the beacon */ |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 940 | ath_beacon_config(sc, vif); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 941 | |
| 942 | /* Reset rssi stats */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 943 | sc->nodestats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER; |
| 944 | sc->nodestats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER; |
| 945 | sc->nodestats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER; |
| 946 | sc->nodestats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 947 | |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 948 | ath_start_ani(sc); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 949 | } else { |
Sujith | 1ffb061 | 2009-03-30 15:28:46 +0530 | [diff] [blame] | 950 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 951 | sc->curaid = 0; |
Senthil Balasubramanian | f38faa3 | 2009-06-24 18:56:40 +0530 | [diff] [blame] | 952 | /* Stop ANI */ |
| 953 | del_timer_sync(&sc->ani.timer); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 954 | } |
| 955 | } |
| 956 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 957 | /********************************/ |
| 958 | /* LED functions */ |
| 959 | /********************************/ |
| 960 | |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 961 | static void ath_led_blink_work(struct work_struct *work) |
| 962 | { |
| 963 | struct ath_softc *sc = container_of(work, struct ath_softc, |
| 964 | ath_led_blink_work.work); |
| 965 | |
| 966 | if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) |
| 967 | return; |
Vasanthakumar Thiagarajan | 85067c0 | 2009-03-14 19:59:41 +0530 | [diff] [blame] | 968 | |
| 969 | if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) || |
| 970 | (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 971 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); |
Vasanthakumar Thiagarajan | 85067c0 | 2009-03-14 19:59:41 +0530 | [diff] [blame] | 972 | else |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 973 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, |
Vasanthakumar Thiagarajan | 85067c0 | 2009-03-14 19:59:41 +0530 | [diff] [blame] | 974 | (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 975 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 976 | ieee80211_queue_delayed_work(sc->hw, |
| 977 | &sc->ath_led_blink_work, |
| 978 | (sc->sc_flags & SC_OP_LED_ON) ? |
| 979 | msecs_to_jiffies(sc->led_off_duration) : |
| 980 | msecs_to_jiffies(sc->led_on_duration)); |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 981 | |
Vasanthakumar Thiagarajan | 85067c0 | 2009-03-14 19:59:41 +0530 | [diff] [blame] | 982 | sc->led_on_duration = sc->led_on_cnt ? |
| 983 | max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) : |
| 984 | ATH_LED_ON_DURATION_IDLE; |
| 985 | sc->led_off_duration = sc->led_off_cnt ? |
| 986 | max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) : |
| 987 | ATH_LED_OFF_DURATION_IDLE; |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 988 | sc->led_on_cnt = sc->led_off_cnt = 0; |
| 989 | if (sc->sc_flags & SC_OP_LED_ON) |
| 990 | sc->sc_flags &= ~SC_OP_LED_ON; |
| 991 | else |
| 992 | sc->sc_flags |= SC_OP_LED_ON; |
| 993 | } |
| 994 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 995 | static void ath_led_brightness(struct led_classdev *led_cdev, |
| 996 | enum led_brightness brightness) |
| 997 | { |
| 998 | struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); |
| 999 | struct ath_softc *sc = led->sc; |
| 1000 | |
| 1001 | switch (brightness) { |
| 1002 | case LED_OFF: |
| 1003 | if (led->led_type == ATH_LED_ASSOC || |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1004 | led->led_type == ATH_LED_RADIO) { |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 1005 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1006 | (led->led_type == ATH_LED_RADIO)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1007 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1008 | if (led->led_type == ATH_LED_RADIO) |
| 1009 | sc->sc_flags &= ~SC_OP_LED_ON; |
| 1010 | } else { |
| 1011 | sc->led_off_cnt++; |
| 1012 | } |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1013 | break; |
| 1014 | case LED_FULL: |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1015 | if (led->led_type == ATH_LED_ASSOC) { |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1016 | sc->sc_flags |= SC_OP_LED_ASSOCIATED; |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1017 | ieee80211_queue_delayed_work(sc->hw, |
| 1018 | &sc->ath_led_blink_work, 0); |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1019 | } else if (led->led_type == ATH_LED_RADIO) { |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 1020 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0); |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1021 | sc->sc_flags |= SC_OP_LED_ON; |
| 1022 | } else { |
| 1023 | sc->led_on_cnt++; |
| 1024 | } |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1025 | break; |
| 1026 | default: |
| 1027 | break; |
| 1028 | } |
| 1029 | } |
| 1030 | |
| 1031 | static int ath_register_led(struct ath_softc *sc, struct ath_led *led, |
| 1032 | char *trigger) |
| 1033 | { |
| 1034 | int ret; |
| 1035 | |
| 1036 | led->sc = sc; |
| 1037 | led->led_cdev.name = led->name; |
| 1038 | led->led_cdev.default_trigger = trigger; |
| 1039 | led->led_cdev.brightness_set = ath_led_brightness; |
| 1040 | |
| 1041 | ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); |
| 1042 | if (ret) |
| 1043 | DPRINTF(sc, ATH_DBG_FATAL, |
| 1044 | "Failed to register led:%s", led->name); |
| 1045 | else |
| 1046 | led->registered = 1; |
| 1047 | return ret; |
| 1048 | } |
| 1049 | |
| 1050 | static void ath_unregister_led(struct ath_led *led) |
| 1051 | { |
| 1052 | if (led->registered) { |
| 1053 | led_classdev_unregister(&led->led_cdev); |
| 1054 | led->registered = 0; |
| 1055 | } |
| 1056 | } |
| 1057 | |
| 1058 | static void ath_deinit_leds(struct ath_softc *sc) |
| 1059 | { |
| 1060 | ath_unregister_led(&sc->assoc_led); |
| 1061 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; |
| 1062 | ath_unregister_led(&sc->tx_led); |
| 1063 | ath_unregister_led(&sc->rx_led); |
| 1064 | ath_unregister_led(&sc->radio_led); |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 1065 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1066 | } |
| 1067 | |
| 1068 | static void ath_init_leds(struct ath_softc *sc) |
| 1069 | { |
| 1070 | char *trigger; |
| 1071 | int ret; |
| 1072 | |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 1073 | if (AR_SREV_9287(sc->sc_ah)) |
| 1074 | sc->sc_ah->led_pin = ATH_LED_PIN_9287; |
| 1075 | else |
| 1076 | sc->sc_ah->led_pin = ATH_LED_PIN_DEF; |
| 1077 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1078 | /* Configure gpio 1 for output */ |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 1079 | ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin, |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1080 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
| 1081 | /* LED off, active low */ |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 1082 | ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1083 | |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1084 | INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); |
| 1085 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1086 | trigger = ieee80211_get_radio_led_name(sc->hw); |
| 1087 | snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), |
Danny Kukawka | 0818cb8 | 2009-01-31 15:52:09 +0100 | [diff] [blame] | 1088 | "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1089 | ret = ath_register_led(sc, &sc->radio_led, trigger); |
| 1090 | sc->radio_led.led_type = ATH_LED_RADIO; |
| 1091 | if (ret) |
| 1092 | goto fail; |
| 1093 | |
| 1094 | trigger = ieee80211_get_assoc_led_name(sc->hw); |
| 1095 | snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), |
Danny Kukawka | 0818cb8 | 2009-01-31 15:52:09 +0100 | [diff] [blame] | 1096 | "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1097 | ret = ath_register_led(sc, &sc->assoc_led, trigger); |
| 1098 | sc->assoc_led.led_type = ATH_LED_ASSOC; |
| 1099 | if (ret) |
| 1100 | goto fail; |
| 1101 | |
| 1102 | trigger = ieee80211_get_tx_led_name(sc->hw); |
| 1103 | snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), |
Danny Kukawka | 0818cb8 | 2009-01-31 15:52:09 +0100 | [diff] [blame] | 1104 | "ath9k-%s::tx", wiphy_name(sc->hw->wiphy)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1105 | ret = ath_register_led(sc, &sc->tx_led, trigger); |
| 1106 | sc->tx_led.led_type = ATH_LED_TX; |
| 1107 | if (ret) |
| 1108 | goto fail; |
| 1109 | |
| 1110 | trigger = ieee80211_get_rx_led_name(sc->hw); |
| 1111 | snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), |
Danny Kukawka | 0818cb8 | 2009-01-31 15:52:09 +0100 | [diff] [blame] | 1112 | "ath9k-%s::rx", wiphy_name(sc->hw->wiphy)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1113 | ret = ath_register_led(sc, &sc->rx_led, trigger); |
| 1114 | sc->rx_led.led_type = ATH_LED_RX; |
| 1115 | if (ret) |
| 1116 | goto fail; |
| 1117 | |
| 1118 | return; |
| 1119 | |
| 1120 | fail: |
Luis R. Rodriguez | 35c95ab | 2009-07-27 11:53:03 -0700 | [diff] [blame] | 1121 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1122 | ath_deinit_leds(sc); |
| 1123 | } |
| 1124 | |
Jouni Malinen | 7ec3e51 | 2009-03-03 19:23:37 +0200 | [diff] [blame] | 1125 | void ath_radio_enable(struct ath_softc *sc) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1126 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1127 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1128 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
| 1129 | int r; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1130 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1131 | ath9k_ps_wakeup(sc); |
Sujith | d2f5b3a | 2009-04-13 21:56:25 +0530 | [diff] [blame] | 1132 | ath9k_hw_configpcipowersave(ah, 0); |
| 1133 | |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 1134 | if (!ah->curchan) |
| 1135 | ah->curchan = ath_get_curchannel(sc, sc->hw); |
| 1136 | |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1137 | spin_lock_bh(&sc->sc_resetlock); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1138 | r = ath9k_hw_reset(ah, ah->curchan, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1139 | if (r) { |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1140 | DPRINTF(sc, ATH_DBG_FATAL, |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1141 | "Unable to reset channel %u (%uMhz) ", |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 1142 | "reset status %d\n", |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1143 | channel->center_freq, r); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1144 | } |
| 1145 | spin_unlock_bh(&sc->sc_resetlock); |
| 1146 | |
| 1147 | ath_update_txpow(sc); |
| 1148 | if (ath_startrecv(sc) != 0) { |
| 1149 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1150 | "Unable to restart recv logic\n"); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1151 | return; |
| 1152 | } |
| 1153 | |
| 1154 | if (sc->sc_flags & SC_OP_BEACONS) |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1155 | ath_beacon_config(sc, NULL); /* restart beacons */ |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1156 | |
| 1157 | /* Re-Enable interrupts */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1158 | ath9k_hw_set_interrupts(ah, sc->imask); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1159 | |
| 1160 | /* Enable LED */ |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 1161 | ath9k_hw_cfg_output(ah, ah->led_pin, |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1162 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 1163 | ath9k_hw_set_gpio(ah, ah->led_pin, 0); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1164 | |
| 1165 | ieee80211_wake_queues(sc->hw); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1166 | ath9k_ps_restore(sc); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1167 | } |
| 1168 | |
Jouni Malinen | 7ec3e51 | 2009-03-03 19:23:37 +0200 | [diff] [blame] | 1169 | void ath_radio_disable(struct ath_softc *sc) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1170 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1171 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1172 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
| 1173 | int r; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1174 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1175 | ath9k_ps_wakeup(sc); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1176 | ieee80211_stop_queues(sc->hw); |
| 1177 | |
| 1178 | /* Disable LED */ |
Vivek Natarajan | 08fc5c1 | 2009-08-14 11:30:52 +0530 | [diff] [blame] | 1179 | ath9k_hw_set_gpio(ah, ah->led_pin, 1); |
| 1180 | ath9k_hw_cfg_gpio_input(ah, ah->led_pin); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1181 | |
| 1182 | /* Disable interrupts */ |
| 1183 | ath9k_hw_set_interrupts(ah, 0); |
| 1184 | |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 1185 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1186 | ath_stoprecv(sc); /* turn off frame recv */ |
| 1187 | ath_flushrecv(sc); /* flush recv queue */ |
| 1188 | |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 1189 | if (!ah->curchan) |
| 1190 | ah->curchan = ath_get_curchannel(sc, sc->hw); |
| 1191 | |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1192 | spin_lock_bh(&sc->sc_resetlock); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1193 | r = ath9k_hw_reset(ah, ah->curchan, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1194 | if (r) { |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1195 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1196 | "Unable to reset channel %u (%uMhz) " |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 1197 | "reset status %d\n", |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1198 | channel->center_freq, r); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1199 | } |
| 1200 | spin_unlock_bh(&sc->sc_resetlock); |
| 1201 | |
| 1202 | ath9k_hw_phy_disable(ah); |
Sujith | d2f5b3a | 2009-04-13 21:56:25 +0530 | [diff] [blame] | 1203 | ath9k_hw_configpcipowersave(ah, 1); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1204 | ath9k_ps_restore(sc); |
Gabor Juhos | 38ab422 | 2009-06-17 20:53:21 +0200 | [diff] [blame] | 1205 | ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1206 | } |
| 1207 | |
Gabor Juhos | 5077fd3 | 2009-03-06 11:17:55 +0100 | [diff] [blame] | 1208 | /*******************/ |
| 1209 | /* Rfkill */ |
| 1210 | /*******************/ |
| 1211 | |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1212 | static bool ath_is_rfkill_set(struct ath_softc *sc) |
| 1213 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1214 | struct ath_hw *ah = sc->sc_ah; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1215 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1216 | return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == |
| 1217 | ah->rfkill_polarity; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1218 | } |
| 1219 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1220 | static void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1221 | { |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1222 | struct ath_wiphy *aphy = hw->priv; |
| 1223 | struct ath_softc *sc = aphy->sc; |
| 1224 | bool blocked = !!ath_is_rfkill_set(sc); |
| 1225 | |
| 1226 | wiphy_rfkill_set_hw_state(hw->wiphy, blocked); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1227 | |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 1228 | if (blocked) |
| 1229 | ath_radio_disable(sc); |
| 1230 | else |
| 1231 | ath_radio_enable(sc); |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 1232 | } |
| 1233 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1234 | static void ath_start_rfkill_poll(struct ath_softc *sc) |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 1235 | { |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1236 | struct ath_hw *ah = sc->sc_ah; |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 1237 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1238 | if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
| 1239 | wiphy_rfkill_start_polling(sc->hw->wiphy); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1240 | } |
| 1241 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 1242 | void ath_cleanup(struct ath_softc *sc) |
Gabor Juhos | 39c3c2f | 2009-01-14 20:17:05 +0100 | [diff] [blame] | 1243 | { |
| 1244 | ath_detach(sc); |
| 1245 | free_irq(sc->irq, sc); |
| 1246 | ath_bus_cleanup(sc); |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1247 | kfree(sc->sec_wiphy); |
Gabor Juhos | 39c3c2f | 2009-01-14 20:17:05 +0100 | [diff] [blame] | 1248 | ieee80211_free_hw(sc->hw); |
| 1249 | } |
| 1250 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 1251 | void ath_detach(struct ath_softc *sc) |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1252 | { |
| 1253 | struct ieee80211_hw *hw = sc->hw; |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1254 | int i = 0; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1255 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1256 | ath9k_ps_wakeup(sc); |
| 1257 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1258 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1259 | |
Luis R. Rodriguez | 35c95ab | 2009-07-27 11:53:03 -0700 | [diff] [blame] | 1260 | ath_deinit_leds(sc); |
| 1261 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1262 | for (i = 0; i < sc->num_sec_wiphy; i++) { |
| 1263 | struct ath_wiphy *aphy = sc->sec_wiphy[i]; |
| 1264 | if (aphy == NULL) |
| 1265 | continue; |
| 1266 | sc->sec_wiphy[i] = NULL; |
| 1267 | ieee80211_unregister_hw(aphy->hw); |
| 1268 | ieee80211_free_hw(aphy->hw); |
| 1269 | } |
Vasanthakumar Thiagarajan | 3fcdfb4 | 2008-11-18 01:19:56 +0530 | [diff] [blame] | 1270 | ieee80211_unregister_hw(hw); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1271 | ath_rx_cleanup(sc); |
| 1272 | ath_tx_cleanup(sc); |
| 1273 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1274 | tasklet_kill(&sc->intr_tq); |
| 1275 | tasklet_kill(&sc->bcon_tasklet); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1276 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1277 | if (!(sc->sc_flags & SC_OP_INVALID)) |
| 1278 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1279 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1280 | /* cleanup tx queues */ |
| 1281 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) |
| 1282 | if (ATH_TXQ_SETUP(sc, i)) |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1283 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1284 | |
| 1285 | ath9k_hw_detach(sc->sc_ah); |
Luis R. Rodriguez | 3ce1b1a | 2009-08-03 12:24:53 -0700 | [diff] [blame] | 1286 | sc->sc_ah = NULL; |
Sujith | 826d268 | 2008-11-28 22:20:23 +0530 | [diff] [blame] | 1287 | ath9k_exit_debug(sc); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1288 | } |
| 1289 | |
Bob Copeland | e3bb249 | 2009-03-30 22:30:30 -0400 | [diff] [blame] | 1290 | static int ath9k_reg_notifier(struct wiphy *wiphy, |
| 1291 | struct regulatory_request *request) |
| 1292 | { |
| 1293 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); |
| 1294 | struct ath_wiphy *aphy = hw->priv; |
| 1295 | struct ath_softc *sc = aphy->sc; |
| 1296 | struct ath_regulatory *reg = &sc->sc_ah->regulatory; |
| 1297 | |
| 1298 | return ath_reg_notifier_apply(wiphy, request, reg); |
| 1299 | } |
| 1300 | |
Luis R. Rodriguez | 1e40bcf | 2009-08-03 12:24:47 -0700 | [diff] [blame] | 1301 | /* |
| 1302 | * Initialize and fill ath_softc, ath_sofct is the |
| 1303 | * "Software Carrier" struct. Historically it has existed |
| 1304 | * to allow the separation between hardware specific |
| 1305 | * variables (now in ath_hw) and driver specific variables. |
| 1306 | */ |
| 1307 | static int ath_init_softc(u16 devid, struct ath_softc *sc) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1308 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1309 | struct ath_hw *ah = NULL; |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1310 | int r = 0, i; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1311 | int csz = 0; |
| 1312 | |
| 1313 | /* XXX: hardware will not be ready until ath_open() being called */ |
| 1314 | sc->sc_flags |= SC_OP_INVALID; |
Sujith | 88b126a | 2008-11-28 22:19:02 +0530 | [diff] [blame] | 1315 | |
Sujith | 826d268 | 2008-11-28 22:20:23 +0530 | [diff] [blame] | 1316 | if (ath9k_init_debug(sc) < 0) |
| 1317 | printk(KERN_ERR "Unable to create debugfs files\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1318 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1319 | spin_lock_init(&sc->wiphy_lock); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1320 | spin_lock_init(&sc->sc_resetlock); |
Luis R. Rodriguez | 6158425 | 2009-03-12 18:18:49 -0400 | [diff] [blame] | 1321 | spin_lock_init(&sc->sc_serial_rw); |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 1322 | spin_lock_init(&sc->ani_lock); |
Gabor Juhos | 04717cc | 2009-07-14 20:17:13 -0400 | [diff] [blame] | 1323 | spin_lock_init(&sc->sc_pm_lock); |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 1324 | mutex_init(&sc->mutex); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1325 | tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); |
Sujith | 9fc9ab0 | 2009-03-03 10:16:51 +0530 | [diff] [blame] | 1326 | tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1327 | (unsigned long)sc); |
| 1328 | |
| 1329 | /* |
| 1330 | * Cache line size is used to size and align various |
| 1331 | * structures used to communicate with the hardware. |
| 1332 | */ |
Gabor Juhos | 88d1570 | 2009-01-14 20:17:04 +0100 | [diff] [blame] | 1333 | ath_read_cachesize(sc, &csz); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1334 | /* XXX assert csz is non-zero */ |
Luis R. Rodriguez | d15dd3e | 2009-08-12 09:56:59 -0700 | [diff] [blame] | 1335 | sc->common.cachelsz = csz << 2; /* convert to bytes */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1336 | |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1337 | ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); |
| 1338 | if (!ah) { |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1339 | r = -ENOMEM; |
| 1340 | goto bad_no_ah; |
| 1341 | } |
| 1342 | |
| 1343 | ah->ah_sc = sc; |
Luis R. Rodriguez | 8df5d1b | 2009-08-03 12:24:37 -0700 | [diff] [blame] | 1344 | ah->hw_version.devid = devid; |
Luis R. Rodriguez | e1e2f93 | 2009-08-03 12:24:38 -0700 | [diff] [blame] | 1345 | sc->sc_ah = ah; |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1346 | |
Luis R. Rodriguez | f637cfd | 2009-08-03 12:24:46 -0700 | [diff] [blame] | 1347 | r = ath9k_hw_init(ah); |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1348 | if (r) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1349 | DPRINTF(sc, ATH_DBG_FATAL, |
Luis R. Rodriguez | f637cfd | 2009-08-03 12:24:46 -0700 | [diff] [blame] | 1350 | "Unable to initialize hardware; " |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1351 | "initialization status: %d\n", r); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1352 | goto bad; |
| 1353 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1354 | |
| 1355 | /* Get the hardware key cache size. */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1356 | sc->keymax = ah->caps.keycache_size; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1357 | if (sc->keymax > ATH_KEYMAX) { |
Sujith | d8baa93 | 2009-03-30 15:28:25 +0530 | [diff] [blame] | 1358 | DPRINTF(sc, ATH_DBG_ANY, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1359 | "Warning, using only %u entries in %u key cache\n", |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1360 | ATH_KEYMAX, sc->keymax); |
| 1361 | sc->keymax = ATH_KEYMAX; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1362 | } |
| 1363 | |
| 1364 | /* |
| 1365 | * Reset the key cache since some parts do not |
| 1366 | * reset the contents on initial power up. |
| 1367 | */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1368 | for (i = 0; i < sc->keymax; i++) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1369 | ath9k_hw_keyreset(ah, (u16) i); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1370 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1371 | /* default to MONITOR mode */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1372 | sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 1373 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1374 | /* Setup rate tables */ |
| 1375 | |
| 1376 | ath_rate_attach(sc); |
| 1377 | ath_setup_rates(sc, IEEE80211_BAND_2GHZ); |
| 1378 | ath_setup_rates(sc, IEEE80211_BAND_5GHZ); |
| 1379 | |
| 1380 | /* |
| 1381 | * Allocate hardware transmit queues: one queue for |
| 1382 | * beacon frames and one data queue for each QoS |
| 1383 | * priority. Note that the hal handles reseting |
| 1384 | * these queues at the needed time. |
| 1385 | */ |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1386 | sc->beacon.beaconq = ath_beaconq_setup(ah); |
| 1387 | if (sc->beacon.beaconq == -1) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1388 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1389 | "Unable to setup a beacon xmit queue\n"); |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1390 | r = -EIO; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1391 | goto bad2; |
| 1392 | } |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1393 | sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0); |
| 1394 | if (sc->beacon.cabq == NULL) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1395 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1396 | "Unable to setup CAB xmit queue\n"); |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1397 | r = -EIO; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1398 | goto bad2; |
| 1399 | } |
| 1400 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1401 | sc->config.cabqReadytime = ATH_CABQ_READY_TIME; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1402 | ath_cabq_update(sc); |
| 1403 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1404 | for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) |
| 1405 | sc->tx.hwq_map[i] = -1; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1406 | |
| 1407 | /* Setup data queues */ |
| 1408 | /* NB: ensure BK queue is the lowest priority h/w queue */ |
| 1409 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) { |
| 1410 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1411 | "Unable to setup xmit queue for BK traffic\n"); |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1412 | r = -EIO; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1413 | goto bad2; |
| 1414 | } |
| 1415 | |
| 1416 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) { |
| 1417 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1418 | "Unable to setup xmit queue for BE traffic\n"); |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1419 | r = -EIO; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1420 | goto bad2; |
| 1421 | } |
| 1422 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) { |
| 1423 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1424 | "Unable to setup xmit queue for VI traffic\n"); |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1425 | r = -EIO; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1426 | goto bad2; |
| 1427 | } |
| 1428 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) { |
| 1429 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1430 | "Unable to setup xmit queue for VO traffic\n"); |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1431 | r = -EIO; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1432 | goto bad2; |
| 1433 | } |
| 1434 | |
| 1435 | /* Initializes the noise floor to a reasonable default value. |
| 1436 | * Later on this will be updated during ANI processing. */ |
| 1437 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1438 | sc->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR; |
| 1439 | setup_timer(&sc->ani.timer, ath_ani_calibrate, (unsigned long)sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1440 | |
| 1441 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, |
| 1442 | ATH9K_CIPHER_TKIP, NULL)) { |
| 1443 | /* |
| 1444 | * Whether we should enable h/w TKIP MIC. |
| 1445 | * XXX: if we don't support WME TKIP MIC, then we wouldn't |
| 1446 | * report WMM capable, so it's always safe to turn on |
| 1447 | * TKIP MIC in this case. |
| 1448 | */ |
| 1449 | ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, |
| 1450 | 0, 1, NULL); |
| 1451 | } |
| 1452 | |
| 1453 | /* |
| 1454 | * Check whether the separate key cache entries |
| 1455 | * are required to handle both tx+rx MIC keys. |
| 1456 | * With split mic keys the number of stations is limited |
| 1457 | * to 27 otherwise 59. |
| 1458 | */ |
| 1459 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, |
| 1460 | ATH9K_CIPHER_TKIP, NULL) |
| 1461 | && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, |
| 1462 | ATH9K_CIPHER_MIC, NULL) |
| 1463 | && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, |
| 1464 | 0, NULL)) |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1465 | sc->splitmic = 1; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1466 | |
| 1467 | /* turn on mcast key search if possible */ |
| 1468 | if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) |
| 1469 | (void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1, |
| 1470 | 1, NULL); |
| 1471 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1472 | sc->config.txpowlimit = ATH_TXPOWER_MAX; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1473 | |
| 1474 | /* 11n Capabilities */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1475 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1476 | sc->sc_flags |= SC_OP_TXAGGR; |
| 1477 | sc->sc_flags |= SC_OP_RXAGGR; |
| 1478 | } |
| 1479 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1480 | sc->tx_chainmask = ah->caps.tx_chainmask; |
| 1481 | sc->rx_chainmask = ah->caps.rx_chainmask; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1482 | |
| 1483 | ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1484 | sc->rx.defant = ath9k_hw_getdefantenna(ah); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1485 | |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 1486 | if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
Sujith | ba52da5 | 2009-02-09 13:27:10 +0530 | [diff] [blame] | 1487 | memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1488 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1489 | sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1490 | |
| 1491 | /* initialize beacon slots */ |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1492 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1493 | sc->beacon.bslot[i] = NULL; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1494 | sc->beacon.bslot_aphy[i] = NULL; |
| 1495 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1496 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1497 | /* setup channels and rates */ |
| 1498 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1499 | sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1500 | sc->sbands[IEEE80211_BAND_2GHZ].bitrates = |
| 1501 | sc->rates[IEEE80211_BAND_2GHZ]; |
| 1502 | sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1503 | sc->sbands[IEEE80211_BAND_2GHZ].n_channels = |
| 1504 | ARRAY_SIZE(ath9k_2ghz_chantable); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1505 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1506 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) { |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1507 | sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1508 | sc->sbands[IEEE80211_BAND_5GHZ].bitrates = |
| 1509 | sc->rates[IEEE80211_BAND_5GHZ]; |
| 1510 | sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1511 | sc->sbands[IEEE80211_BAND_5GHZ].n_channels = |
| 1512 | ARRAY_SIZE(ath9k_5ghz_chantable); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1513 | } |
| 1514 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1515 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) |
Vasanthakumar Thiagarajan | c97c92d | 2009-01-02 15:35:46 +0530 | [diff] [blame] | 1516 | ath9k_hw_btcoex_enable(sc->sc_ah); |
| 1517 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1518 | return 0; |
| 1519 | bad2: |
| 1520 | /* cleanup tx queues */ |
| 1521 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) |
| 1522 | if (ATH_TXQ_SETUP(sc, i)) |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1523 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1524 | bad: |
Luis R. Rodriguez | 95fafca | 2009-08-03 12:24:54 -0700 | [diff] [blame] | 1525 | ath9k_hw_detach(ah); |
Luis R. Rodriguez | 3ce1b1a | 2009-08-03 12:24:53 -0700 | [diff] [blame] | 1526 | sc->sc_ah = NULL; |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1527 | bad_no_ah: |
Vasanthakumar Thiagarajan | 40b130a | 2009-02-16 13:55:07 +0530 | [diff] [blame] | 1528 | ath9k_exit_debug(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1529 | |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 1530 | return r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1531 | } |
| 1532 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1533 | void ath_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1534 | { |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1535 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
| 1536 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | |
| 1537 | IEEE80211_HW_SIGNAL_DBM | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1538 | IEEE80211_HW_AMPDU_AGGREGATION | |
| 1539 | IEEE80211_HW_SUPPORTS_PS | |
Sujith | eeee132 | 2009-03-10 10:39:53 +0530 | [diff] [blame] | 1540 | IEEE80211_HW_PS_NULLFUNC_STACK | |
| 1541 | IEEE80211_HW_SPECTRUM_MGMT; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1542 | |
Jouni Malinen | b3bd89c | 2009-02-24 13:42:01 +0200 | [diff] [blame] | 1543 | if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) |
Jouni Malinen | 0ced0e1 | 2009-01-08 13:32:13 +0200 | [diff] [blame] | 1544 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
| 1545 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1546 | hw->wiphy->interface_modes = |
| 1547 | BIT(NL80211_IFTYPE_AP) | |
| 1548 | BIT(NL80211_IFTYPE_STATION) | |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 1549 | BIT(NL80211_IFTYPE_ADHOC) | |
| 1550 | BIT(NL80211_IFTYPE_MESH_POINT); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1551 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1552 | hw->queues = 4; |
Sujith | e63835b | 2008-11-18 09:07:53 +0530 | [diff] [blame] | 1553 | hw->max_rates = 4; |
Sujith | 171387e | 2009-02-17 15:36:25 +0530 | [diff] [blame] | 1554 | hw->channel_change_time = 5000; |
Jouni Malinen | 465ca84 | 2009-03-03 19:23:34 +0200 | [diff] [blame] | 1555 | hw->max_listen_interval = 10; |
Luis R. Rodriguez | dd19018 | 2009-07-14 20:13:56 -0400 | [diff] [blame] | 1556 | /* Hardware supports 10 but we use 4 */ |
| 1557 | hw->max_rate_tries = 4; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1558 | hw->sta_data_size = sizeof(struct ath_node); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1559 | hw->vif_data_size = sizeof(struct ath_vif); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1560 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1561 | hw->rate_control_algorithm = "ath9k_rate_control"; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1562 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1563 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| 1564 | &sc->sbands[IEEE80211_BAND_2GHZ]; |
| 1565 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) |
| 1566 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
| 1567 | &sc->sbands[IEEE80211_BAND_5GHZ]; |
| 1568 | } |
| 1569 | |
Luis R. Rodriguez | 1e40bcf | 2009-08-03 12:24:47 -0700 | [diff] [blame] | 1570 | /* Device driver core initialization */ |
| 1571 | int ath_init_device(u16 devid, struct ath_softc *sc) |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1572 | { |
| 1573 | struct ieee80211_hw *hw = sc->hw; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1574 | int error = 0, i; |
Bob Copeland | 3a702e4 | 2009-03-30 22:30:29 -0400 | [diff] [blame] | 1575 | struct ath_regulatory *reg; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1576 | |
| 1577 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n"); |
| 1578 | |
Luis R. Rodriguez | 1e40bcf | 2009-08-03 12:24:47 -0700 | [diff] [blame] | 1579 | error = ath_init_softc(devid, sc); |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1580 | if (error != 0) |
| 1581 | return error; |
| 1582 | |
| 1583 | /* get mac address from hardware and set in mac80211 */ |
| 1584 | |
| 1585 | SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr); |
| 1586 | |
| 1587 | ath_set_hw_capab(sc, hw); |
| 1588 | |
Luis R. Rodriguez | c26c2e5 | 2009-05-19 18:27:11 -0400 | [diff] [blame] | 1589 | error = ath_regd_init(&sc->sc_ah->regulatory, sc->hw->wiphy, |
| 1590 | ath9k_reg_notifier); |
| 1591 | if (error) |
| 1592 | return error; |
| 1593 | |
| 1594 | reg = &sc->sc_ah->regulatory; |
| 1595 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1596 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 1597 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1598 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 1599 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1600 | } |
| 1601 | |
Senthil Balasubramanian | db93e7b | 2008-11-13 18:01:08 +0530 | [diff] [blame] | 1602 | /* initialize tx/rx engine */ |
| 1603 | error = ath_tx_init(sc, ATH_TXBUF); |
| 1604 | if (error != 0) |
Vasanthakumar Thiagarajan | 40b130a | 2009-02-16 13:55:07 +0530 | [diff] [blame] | 1605 | goto error_attach; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1606 | |
Senthil Balasubramanian | db93e7b | 2008-11-13 18:01:08 +0530 | [diff] [blame] | 1607 | error = ath_rx_init(sc, ATH_RXBUF); |
| 1608 | if (error != 0) |
Vasanthakumar Thiagarajan | 40b130a | 2009-02-16 13:55:07 +0530 | [diff] [blame] | 1609 | goto error_attach; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1610 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1611 | INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); |
Jouni Malinen | f98c3bd | 2009-03-03 19:23:39 +0200 | [diff] [blame] | 1612 | INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work); |
| 1613 | sc->wiphy_scheduler_int = msecs_to_jiffies(500); |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1614 | |
Senthil Balasubramanian | db93e7b | 2008-11-13 18:01:08 +0530 | [diff] [blame] | 1615 | error = ieee80211_register_hw(hw); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1616 | |
Bob Copeland | 3a702e4 | 2009-03-30 22:30:29 -0400 | [diff] [blame] | 1617 | if (!ath_is_world_regd(reg)) { |
Bob Copeland | c02cf37 | 2009-03-30 22:30:28 -0400 | [diff] [blame] | 1618 | error = regulatory_hint(hw->wiphy, reg->alpha2); |
Luis R. Rodriguez | fe33eb3 | 2009-02-21 00:04:30 -0500 | [diff] [blame] | 1619 | if (error) |
| 1620 | goto error_attach; |
| 1621 | } |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1622 | |
Senthil Balasubramanian | db93e7b | 2008-11-13 18:01:08 +0530 | [diff] [blame] | 1623 | /* Initialize LED control */ |
| 1624 | ath_init_leds(sc); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1625 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1626 | ath_start_rfkill_poll(sc); |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1627 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1628 | return 0; |
Vasanthakumar Thiagarajan | 40b130a | 2009-02-16 13:55:07 +0530 | [diff] [blame] | 1629 | |
| 1630 | error_attach: |
| 1631 | /* cleanup tx queues */ |
| 1632 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) |
| 1633 | if (ATH_TXQ_SETUP(sc, i)) |
| 1634 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
| 1635 | |
| 1636 | ath9k_hw_detach(sc->sc_ah); |
Luis R. Rodriguez | 3ce1b1a | 2009-08-03 12:24:53 -0700 | [diff] [blame] | 1637 | sc->sc_ah = NULL; |
Vasanthakumar Thiagarajan | 40b130a | 2009-02-16 13:55:07 +0530 | [diff] [blame] | 1638 | ath9k_exit_debug(sc); |
| 1639 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1640 | return error; |
| 1641 | } |
| 1642 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1643 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
| 1644 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1645 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 1646 | struct ieee80211_hw *hw = sc->hw; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1647 | int r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1648 | |
| 1649 | ath9k_hw_set_interrupts(ah, 0); |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 1650 | ath_drain_all_txq(sc, retry_tx); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1651 | ath_stoprecv(sc); |
| 1652 | ath_flushrecv(sc); |
| 1653 | |
| 1654 | spin_lock_bh(&sc->sc_resetlock); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1655 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1656 | if (r) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1657 | DPRINTF(sc, ATH_DBG_FATAL, |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 1658 | "Unable to reset hardware; reset status %d\n", r); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1659 | spin_unlock_bh(&sc->sc_resetlock); |
| 1660 | |
| 1661 | if (ath_startrecv(sc) != 0) |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1662 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1663 | |
| 1664 | /* |
| 1665 | * We may be doing a reset in response to a request |
| 1666 | * that changes the channel so update any state that |
| 1667 | * might change as a result. |
| 1668 | */ |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 1669 | ath_cache_conf_rate(sc, &hw->conf); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1670 | |
| 1671 | ath_update_txpow(sc); |
| 1672 | |
| 1673 | if (sc->sc_flags & SC_OP_BEACONS) |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1674 | ath_beacon_config(sc, NULL); /* restart beacons */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1675 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1676 | ath9k_hw_set_interrupts(ah, sc->imask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1677 | |
| 1678 | if (retry_tx) { |
| 1679 | int i; |
| 1680 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { |
| 1681 | if (ATH_TXQ_SETUP(sc, i)) { |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1682 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
| 1683 | ath_txq_schedule(sc, &sc->tx.txq[i]); |
| 1684 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1685 | } |
| 1686 | } |
| 1687 | } |
| 1688 | |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1689 | return r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1690 | } |
| 1691 | |
| 1692 | /* |
| 1693 | * This function will allocate both the DMA descriptor structure, and the |
| 1694 | * buffers it contains. These are used to contain the descriptors used |
| 1695 | * by the system. |
| 1696 | */ |
| 1697 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, |
| 1698 | struct list_head *head, const char *name, |
| 1699 | int nbuf, int ndesc) |
| 1700 | { |
| 1701 | #define DS2PHYS(_dd, _ds) \ |
| 1702 | ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) |
| 1703 | #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) |
| 1704 | #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) |
| 1705 | |
| 1706 | struct ath_desc *ds; |
| 1707 | struct ath_buf *bf; |
| 1708 | int i, bsize, error; |
| 1709 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1710 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", |
| 1711 | name, nbuf, ndesc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1712 | |
Senthil Balasubramanian | b03a9db | 2009-03-06 11:24:09 +0530 | [diff] [blame] | 1713 | INIT_LIST_HEAD(head); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1714 | /* ath_desc must be a multiple of DWORDs */ |
| 1715 | if ((sizeof(struct ath_desc) % 4) != 0) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1716 | DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1717 | ASSERT((sizeof(struct ath_desc) % 4) == 0); |
| 1718 | error = -ENOMEM; |
| 1719 | goto fail; |
| 1720 | } |
| 1721 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1722 | dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; |
| 1723 | |
| 1724 | /* |
| 1725 | * Need additional DMA memory because we can't use |
| 1726 | * descriptors that cross the 4K page boundary. Assume |
| 1727 | * one skipped descriptor per 4K page. |
| 1728 | */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1729 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1730 | u32 ndesc_skipped = |
| 1731 | ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); |
| 1732 | u32 dma_len; |
| 1733 | |
| 1734 | while (ndesc_skipped) { |
| 1735 | dma_len = ndesc_skipped * sizeof(struct ath_desc); |
| 1736 | dd->dd_desc_len += dma_len; |
| 1737 | |
| 1738 | ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); |
| 1739 | }; |
| 1740 | } |
| 1741 | |
| 1742 | /* allocate descriptors */ |
Gabor Juhos | 7da3c55 | 2009-01-14 20:17:03 +0100 | [diff] [blame] | 1743 | dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, |
Senthil Balasubramanian | f0e6ce1 | 2009-03-06 11:24:08 +0530 | [diff] [blame] | 1744 | &dd->dd_desc_paddr, GFP_KERNEL); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1745 | if (dd->dd_desc == NULL) { |
| 1746 | error = -ENOMEM; |
| 1747 | goto fail; |
| 1748 | } |
| 1749 | ds = dd->dd_desc; |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1750 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", |
Sujith | ae459af | 2009-03-30 15:28:40 +0530 | [diff] [blame] | 1751 | name, ds, (u32) dd->dd_desc_len, |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1752 | ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); |
| 1753 | |
| 1754 | /* allocate buffers */ |
| 1755 | bsize = sizeof(struct ath_buf) * nbuf; |
Senthil Balasubramanian | f0e6ce1 | 2009-03-06 11:24:08 +0530 | [diff] [blame] | 1756 | bf = kzalloc(bsize, GFP_KERNEL); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1757 | if (bf == NULL) { |
| 1758 | error = -ENOMEM; |
| 1759 | goto fail2; |
| 1760 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1761 | dd->dd_bufptr = bf; |
| 1762 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1763 | for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { |
| 1764 | bf->bf_desc = ds; |
| 1765 | bf->bf_daddr = DS2PHYS(dd, ds); |
| 1766 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1767 | if (!(sc->sc_ah->caps.hw_caps & |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1768 | ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
| 1769 | /* |
| 1770 | * Skip descriptor addresses which can cause 4KB |
| 1771 | * boundary crossing (addr + length) with a 32 dword |
| 1772 | * descriptor fetch. |
| 1773 | */ |
| 1774 | while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { |
| 1775 | ASSERT((caddr_t) bf->bf_desc < |
| 1776 | ((caddr_t) dd->dd_desc + |
| 1777 | dd->dd_desc_len)); |
| 1778 | |
| 1779 | ds += ndesc; |
| 1780 | bf->bf_desc = ds; |
| 1781 | bf->bf_daddr = DS2PHYS(dd, ds); |
| 1782 | } |
| 1783 | } |
| 1784 | list_add_tail(&bf->list, head); |
| 1785 | } |
| 1786 | return 0; |
| 1787 | fail2: |
Gabor Juhos | 7da3c55 | 2009-01-14 20:17:03 +0100 | [diff] [blame] | 1788 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
| 1789 | dd->dd_desc_paddr); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1790 | fail: |
| 1791 | memset(dd, 0, sizeof(*dd)); |
| 1792 | return error; |
| 1793 | #undef ATH_DESC_4KB_BOUND_CHECK |
| 1794 | #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED |
| 1795 | #undef DS2PHYS |
| 1796 | } |
| 1797 | |
| 1798 | void ath_descdma_cleanup(struct ath_softc *sc, |
| 1799 | struct ath_descdma *dd, |
| 1800 | struct list_head *head) |
| 1801 | { |
Gabor Juhos | 7da3c55 | 2009-01-14 20:17:03 +0100 | [diff] [blame] | 1802 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
| 1803 | dd->dd_desc_paddr); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1804 | |
| 1805 | INIT_LIST_HEAD(head); |
| 1806 | kfree(dd->dd_bufptr); |
| 1807 | memset(dd, 0, sizeof(*dd)); |
| 1808 | } |
| 1809 | |
| 1810 | int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) |
| 1811 | { |
| 1812 | int qnum; |
| 1813 | |
| 1814 | switch (queue) { |
| 1815 | case 0: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1816 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VO]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1817 | break; |
| 1818 | case 1: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1819 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VI]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1820 | break; |
| 1821 | case 2: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1822 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1823 | break; |
| 1824 | case 3: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1825 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BK]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1826 | break; |
| 1827 | default: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1828 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1829 | break; |
| 1830 | } |
| 1831 | |
| 1832 | return qnum; |
| 1833 | } |
| 1834 | |
| 1835 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc) |
| 1836 | { |
| 1837 | int qnum; |
| 1838 | |
| 1839 | switch (queue) { |
| 1840 | case ATH9K_WME_AC_VO: |
| 1841 | qnum = 0; |
| 1842 | break; |
| 1843 | case ATH9K_WME_AC_VI: |
| 1844 | qnum = 1; |
| 1845 | break; |
| 1846 | case ATH9K_WME_AC_BE: |
| 1847 | qnum = 2; |
| 1848 | break; |
| 1849 | case ATH9K_WME_AC_BK: |
| 1850 | qnum = 3; |
| 1851 | break; |
| 1852 | default: |
| 1853 | qnum = -1; |
| 1854 | break; |
| 1855 | } |
| 1856 | |
| 1857 | return qnum; |
| 1858 | } |
| 1859 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1860 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
| 1861 | * this redundant data */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1862 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
| 1863 | struct ath9k_channel *ichan) |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1864 | { |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1865 | struct ieee80211_channel *chan = hw->conf.channel; |
| 1866 | struct ieee80211_conf *conf = &hw->conf; |
| 1867 | |
| 1868 | ichan->channel = chan->center_freq; |
| 1869 | ichan->chan = chan; |
| 1870 | |
| 1871 | if (chan->band == IEEE80211_BAND_2GHZ) { |
| 1872 | ichan->chanmode = CHANNEL_G; |
| 1873 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM; |
| 1874 | } else { |
| 1875 | ichan->chanmode = CHANNEL_A; |
| 1876 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; |
| 1877 | } |
| 1878 | |
| 1879 | sc->tx_chan_width = ATH9K_HT_MACMODE_20; |
| 1880 | |
| 1881 | if (conf_is_ht(conf)) { |
| 1882 | if (conf_is_ht40(conf)) |
| 1883 | sc->tx_chan_width = ATH9K_HT_MACMODE_2040; |
| 1884 | |
| 1885 | ichan->chanmode = ath_get_extchanmode(sc, chan, |
| 1886 | conf->channel_type); |
| 1887 | } |
| 1888 | } |
| 1889 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1890 | /**********************/ |
| 1891 | /* mac80211 callbacks */ |
| 1892 | /**********************/ |
| 1893 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1894 | static int ath9k_start(struct ieee80211_hw *hw) |
| 1895 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1896 | struct ath_wiphy *aphy = hw->priv; |
| 1897 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1898 | struct ieee80211_channel *curchan = hw->conf.channel; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1899 | struct ath9k_channel *init_channel; |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1900 | int r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1901 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1902 | DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with " |
| 1903 | "initial channel: %d MHz\n", curchan->center_freq); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1904 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1905 | mutex_lock(&sc->mutex); |
| 1906 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 1907 | if (ath9k_wiphy_started(sc)) { |
| 1908 | if (sc->chan_idx == curchan->hw_value) { |
| 1909 | /* |
| 1910 | * Already on the operational channel, the new wiphy |
| 1911 | * can be marked active. |
| 1912 | */ |
| 1913 | aphy->state = ATH_WIPHY_ACTIVE; |
| 1914 | ieee80211_wake_queues(hw); |
| 1915 | } else { |
| 1916 | /* |
| 1917 | * Another wiphy is on another channel, start the new |
| 1918 | * wiphy in paused state. |
| 1919 | */ |
| 1920 | aphy->state = ATH_WIPHY_PAUSED; |
| 1921 | ieee80211_stop_queues(hw); |
| 1922 | } |
| 1923 | mutex_unlock(&sc->mutex); |
| 1924 | return 0; |
| 1925 | } |
| 1926 | aphy->state = ATH_WIPHY_ACTIVE; |
| 1927 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1928 | /* setup initial channel */ |
| 1929 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1930 | sc->chan_idx = curchan->hw_value; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1931 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1932 | init_channel = ath_get_curchannel(sc, hw); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1933 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1934 | /* Reset SERDES registers */ |
| 1935 | ath9k_hw_configpcipowersave(sc->sc_ah, 0); |
| 1936 | |
| 1937 | /* |
| 1938 | * The basic interface to setting the hardware in a good |
| 1939 | * state is ``reset''. On return the hardware is known to |
| 1940 | * be powered up and with interrupts disabled. This must |
| 1941 | * be followed by initialization of the appropriate bits |
| 1942 | * and then setup of the interrupt mask. |
| 1943 | */ |
| 1944 | spin_lock_bh(&sc->sc_resetlock); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1945 | r = ath9k_hw_reset(sc->sc_ah, init_channel, false); |
| 1946 | if (r) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1947 | DPRINTF(sc, ATH_DBG_FATAL, |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 1948 | "Unable to reset hardware; reset status %d " |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1949 | "(freq %u MHz)\n", r, |
| 1950 | curchan->center_freq); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1951 | spin_unlock_bh(&sc->sc_resetlock); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1952 | goto mutex_unlock; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1953 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1954 | spin_unlock_bh(&sc->sc_resetlock); |
| 1955 | |
| 1956 | /* |
| 1957 | * This is needed only to setup initial state |
| 1958 | * but it's best done after a reset. |
| 1959 | */ |
| 1960 | ath_update_txpow(sc); |
| 1961 | |
| 1962 | /* |
| 1963 | * Setup the hardware after reset: |
| 1964 | * The receive engine is set going. |
| 1965 | * Frame transmit is handled entirely |
| 1966 | * in the frame output path; there's nothing to do |
| 1967 | * here except setup the interrupt mask. |
| 1968 | */ |
| 1969 | if (ath_startrecv(sc) != 0) { |
Sujith | 1ffb061 | 2009-03-30 15:28:46 +0530 | [diff] [blame] | 1970 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1971 | r = -EIO; |
| 1972 | goto mutex_unlock; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1973 | } |
| 1974 | |
| 1975 | /* Setup our intr mask. */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1976 | sc->imask = ATH9K_INT_RX | ATH9K_INT_TX |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1977 | | ATH9K_INT_RXEOL | ATH9K_INT_RXORN |
| 1978 | | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; |
| 1979 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1980 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_GTT) |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1981 | sc->imask |= ATH9K_INT_GTT; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1982 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1983 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1984 | sc->imask |= ATH9K_INT_CST; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1985 | |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 1986 | ath_cache_conf_rate(sc, &hw->conf); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1987 | |
| 1988 | sc->sc_flags &= ~SC_OP_INVALID; |
| 1989 | |
| 1990 | /* Disable BMISS interrupt when we're not associated */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1991 | sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
| 1992 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1993 | |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1994 | ieee80211_wake_queues(hw); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1995 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1996 | ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); |
Senthil Balasubramanian | 164ace3 | 2009-07-14 20:17:09 -0400 | [diff] [blame] | 1997 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1998 | mutex_unlock: |
| 1999 | mutex_unlock(&sc->mutex); |
| 2000 | |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 2001 | return r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2002 | } |
| 2003 | |
| 2004 | static int ath9k_tx(struct ieee80211_hw *hw, |
| 2005 | struct sk_buff *skb) |
| 2006 | { |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 2007 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2008 | struct ath_wiphy *aphy = hw->priv; |
| 2009 | struct ath_softc *sc = aphy->sc; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 2010 | struct ath_tx_control txctl; |
| 2011 | int hdrlen, padsize; |
| 2012 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2013 | if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { |
Jouni Malinen | ee166a0 | 2009-03-03 19:23:36 +0200 | [diff] [blame] | 2014 | printk(KERN_DEBUG "ath9k: %s: TX in unexpected wiphy state " |
| 2015 | "%d\n", wiphy_name(hw->wiphy), aphy->state); |
| 2016 | goto exit; |
| 2017 | } |
| 2018 | |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 2019 | if (sc->ps_enabled) { |
Jouni Malinen | dc8c458 | 2009-05-19 17:01:42 +0300 | [diff] [blame] | 2020 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| 2021 | /* |
| 2022 | * mac80211 does not set PM field for normal data frames, so we |
| 2023 | * need to update that based on the current PS mode. |
| 2024 | */ |
| 2025 | if (ieee80211_is_data(hdr->frame_control) && |
| 2026 | !ieee80211_is_nullfunc(hdr->frame_control) && |
| 2027 | !ieee80211_has_pm(hdr->frame_control)) { |
| 2028 | DPRINTF(sc, ATH_DBG_PS, "Add PM=1 for a TX frame " |
| 2029 | "while in PS mode\n"); |
| 2030 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
| 2031 | } |
| 2032 | } |
| 2033 | |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 2034 | if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { |
| 2035 | /* |
| 2036 | * We are using PS-Poll and mac80211 can request TX while in |
| 2037 | * power save mode. Need to wake up hardware for the TX to be |
| 2038 | * completed and if needed, also for RX of buffered frames. |
| 2039 | */ |
| 2040 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| 2041 | ath9k_ps_wakeup(sc); |
| 2042 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
| 2043 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
| 2044 | DPRINTF(sc, ATH_DBG_PS, "Sending PS-Poll to pick a " |
| 2045 | "buffered frame\n"); |
| 2046 | sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA; |
| 2047 | } else { |
| 2048 | DPRINTF(sc, ATH_DBG_PS, "Wake up to complete TX\n"); |
| 2049 | sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK; |
| 2050 | } |
| 2051 | /* |
| 2052 | * The actual restore operation will happen only after |
| 2053 | * the sc_flags bit is cleared. We are just dropping |
| 2054 | * the ps_usecount here. |
| 2055 | */ |
| 2056 | ath9k_ps_restore(sc); |
| 2057 | } |
| 2058 | |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 2059 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 2060 | |
| 2061 | /* |
| 2062 | * As a temporary workaround, assign seq# here; this will likely need |
| 2063 | * to be cleaned up to work better with Beacon transmission and virtual |
| 2064 | * BSSes. |
| 2065 | */ |
| 2066 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { |
| 2067 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| 2068 | if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2069 | sc->tx.seq_no += 0x10; |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 2070 | hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2071 | hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 2072 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2073 | |
| 2074 | /* Add the padding after the header if this is not already done */ |
| 2075 | hdrlen = ieee80211_get_hdrlen_from_skb(skb); |
| 2076 | if (hdrlen & 3) { |
| 2077 | padsize = hdrlen % 4; |
| 2078 | if (skb_headroom(skb) < padsize) |
| 2079 | return -1; |
| 2080 | skb_push(skb, padsize); |
| 2081 | memmove(skb->data, skb->data + padsize, hdrlen); |
| 2082 | } |
| 2083 | |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 2084 | /* Check if a tx queue is available */ |
| 2085 | |
| 2086 | txctl.txq = ath_test_get_txq(sc, skb); |
| 2087 | if (!txctl.txq) |
| 2088 | goto exit; |
| 2089 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2090 | DPRINTF(sc, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2091 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 2092 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2093 | DPRINTF(sc, ATH_DBG_XMIT, "TX failed\n"); |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 2094 | goto exit; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2095 | } |
| 2096 | |
| 2097 | return 0; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 2098 | exit: |
| 2099 | dev_kfree_skb_any(skb); |
| 2100 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2101 | } |
| 2102 | |
| 2103 | static void ath9k_stop(struct ieee80211_hw *hw) |
| 2104 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2105 | struct ath_wiphy *aphy = hw->priv; |
| 2106 | struct ath_softc *sc = aphy->sc; |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 2107 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 2108 | aphy->state = ATH_WIPHY_INACTIVE; |
| 2109 | |
Luis R. Rodriguez | c94dbff | 2009-07-27 11:53:04 -0700 | [diff] [blame] | 2110 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
| 2111 | cancel_delayed_work_sync(&sc->tx_complete_work); |
| 2112 | |
| 2113 | if (!sc->num_sec_wiphy) { |
| 2114 | cancel_delayed_work_sync(&sc->wiphy_work); |
| 2115 | cancel_work_sync(&sc->chan_work); |
| 2116 | } |
| 2117 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 2118 | if (sc->sc_flags & SC_OP_INVALID) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2119 | DPRINTF(sc, ATH_DBG_ANY, "Device not present\n"); |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 2120 | return; |
| 2121 | } |
| 2122 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2123 | mutex_lock(&sc->mutex); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2124 | |
Luis R. Rodriguez | e48e3a2 | 2009-07-24 20:47:33 -0400 | [diff] [blame] | 2125 | cancel_delayed_work_sync(&sc->tx_complete_work); |
| 2126 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 2127 | if (ath9k_wiphy_started(sc)) { |
| 2128 | mutex_unlock(&sc->mutex); |
| 2129 | return; /* another wiphy still in use */ |
| 2130 | } |
| 2131 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2132 | /* make sure h/w will not generate any interrupt |
| 2133 | * before setting the invalid flag. */ |
| 2134 | ath9k_hw_set_interrupts(sc->sc_ah, 0); |
| 2135 | |
| 2136 | if (!(sc->sc_flags & SC_OP_INVALID)) { |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 2137 | ath_drain_all_txq(sc, false); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2138 | ath_stoprecv(sc); |
| 2139 | ath9k_hw_phy_disable(sc->sc_ah); |
| 2140 | } else |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2141 | sc->rx.rxlink = NULL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2142 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 2143 | wiphy_rfkill_stop_polling(sc->hw->wiphy); |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 2144 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2145 | /* disable HAL and put h/w to sleep */ |
| 2146 | ath9k_hw_disable(sc->sc_ah); |
| 2147 | ath9k_hw_configpcipowersave(sc->sc_ah, 1); |
Sujith | eff563c | 2009-08-13 09:34:37 +0530 | [diff] [blame] | 2148 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2149 | |
| 2150 | sc->sc_flags |= SC_OP_INVALID; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2151 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2152 | mutex_unlock(&sc->mutex); |
| 2153 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2154 | DPRINTF(sc, ATH_DBG_CONFIG, "Driver halt\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2155 | } |
| 2156 | |
| 2157 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
| 2158 | struct ieee80211_if_init_conf *conf) |
| 2159 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2160 | struct ath_wiphy *aphy = hw->priv; |
| 2161 | struct ath_softc *sc = aphy->sc; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2162 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 2163 | enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2164 | int ret = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2165 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2166 | mutex_lock(&sc->mutex); |
| 2167 | |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 2168 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) && |
| 2169 | sc->nvifs > 0) { |
| 2170 | ret = -ENOBUFS; |
| 2171 | goto out; |
| 2172 | } |
| 2173 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2174 | switch (conf->type) { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2175 | case NL80211_IFTYPE_STATION: |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 2176 | ic_opmode = NL80211_IFTYPE_STATION; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2177 | break; |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2178 | case NL80211_IFTYPE_ADHOC: |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2179 | case NL80211_IFTYPE_AP: |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 2180 | case NL80211_IFTYPE_MESH_POINT: |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2181 | if (sc->nbcnvifs >= ATH_BCBUF) { |
| 2182 | ret = -ENOBUFS; |
| 2183 | goto out; |
| 2184 | } |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 2185 | ic_opmode = conf->type; |
Jouni Malinen | 2ad67de | 2008-08-11 14:01:47 +0300 | [diff] [blame] | 2186 | break; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2187 | default: |
| 2188 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2189 | "Interface type %d not yet supported\n", conf->type); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2190 | ret = -EOPNOTSUPP; |
| 2191 | goto out; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2192 | } |
| 2193 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2194 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach a VIF of type: %d\n", ic_opmode); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2195 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2196 | /* Set the VIF opmode */ |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2197 | avp->av_opmode = ic_opmode; |
| 2198 | avp->av_bslot = -1; |
| 2199 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2200 | sc->nvifs++; |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 2201 | |
| 2202 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
| 2203 | ath9k_set_bssid_mask(hw); |
| 2204 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2205 | if (sc->nvifs > 1) |
| 2206 | goto out; /* skip global settings for secondary vif */ |
| 2207 | |
Sujith | b238e90 | 2009-03-03 10:16:56 +0530 | [diff] [blame] | 2208 | if (ic_opmode == NL80211_IFTYPE_AP) { |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2209 | ath9k_hw_set_tsfadjust(sc->sc_ah, 1); |
Sujith | b238e90 | 2009-03-03 10:16:56 +0530 | [diff] [blame] | 2210 | sc->sc_flags |= SC_OP_TSF_RESET; |
| 2211 | } |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2212 | |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2213 | /* Set the device opmode */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2214 | sc->sc_ah->opmode = ic_opmode; |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2215 | |
Vivek Natarajan | 4e30ffa | 2009-01-28 20:53:27 +0530 | [diff] [blame] | 2216 | /* |
| 2217 | * Enable MIB interrupts when there are hardware phy counters. |
| 2218 | * Note we only do this (at the moment) for station mode. |
| 2219 | */ |
Sujith | 4af9cf4 | 2009-02-12 10:06:47 +0530 | [diff] [blame] | 2220 | if ((conf->type == NL80211_IFTYPE_STATION) || |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 2221 | (conf->type == NL80211_IFTYPE_ADHOC) || |
| 2222 | (conf->type == NL80211_IFTYPE_MESH_POINT)) { |
Sujith | 1aa8e84 | 2009-08-13 09:34:25 +0530 | [diff] [blame] | 2223 | sc->imask |= ATH9K_INT_MIB; |
Sujith | 4af9cf4 | 2009-02-12 10:06:47 +0530 | [diff] [blame] | 2224 | sc->imask |= ATH9K_INT_TSFOOR; |
| 2225 | } |
| 2226 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2227 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
Vivek Natarajan | 4e30ffa | 2009-01-28 20:53:27 +0530 | [diff] [blame] | 2228 | |
Senthil Balasubramanian | f38faa3 | 2009-06-24 18:56:40 +0530 | [diff] [blame] | 2229 | if (conf->type == NL80211_IFTYPE_AP || |
| 2230 | conf->type == NL80211_IFTYPE_ADHOC || |
| 2231 | conf->type == NL80211_IFTYPE_MONITOR) |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 2232 | ath_start_ani(sc); |
Luis R. Rodriguez | 6f25542 | 2008-10-03 15:45:27 -0700 | [diff] [blame] | 2233 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2234 | out: |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2235 | mutex_unlock(&sc->mutex); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2236 | return ret; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2237 | } |
| 2238 | |
| 2239 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
| 2240 | struct ieee80211_if_init_conf *conf) |
| 2241 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2242 | struct ath_wiphy *aphy = hw->priv; |
| 2243 | struct ath_softc *sc = aphy->sc; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2244 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2245 | int i; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2246 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2247 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach Interface\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2248 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2249 | mutex_lock(&sc->mutex); |
| 2250 | |
Luis R. Rodriguez | 6f25542 | 2008-10-03 15:45:27 -0700 | [diff] [blame] | 2251 | /* Stop ANI */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2252 | del_timer_sync(&sc->ani.timer); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2253 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2254 | /* Reclaim beacon resources */ |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 2255 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || |
| 2256 | (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || |
| 2257 | (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2258 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2259 | ath_beacon_return(sc, avp); |
| 2260 | } |
| 2261 | |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2262 | sc->sc_flags &= ~SC_OP_BEACONS; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2263 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2264 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
| 2265 | if (sc->beacon.bslot[i] == conf->vif) { |
| 2266 | printk(KERN_DEBUG "%s: vif had allocated beacon " |
| 2267 | "slot\n", __func__); |
| 2268 | sc->beacon.bslot[i] = NULL; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 2269 | sc->beacon.bslot_aphy[i] = NULL; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2270 | } |
| 2271 | } |
| 2272 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2273 | sc->nvifs--; |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2274 | |
| 2275 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2276 | } |
| 2277 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 2278 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2279 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2280 | struct ath_wiphy *aphy = hw->priv; |
| 2281 | struct ath_softc *sc = aphy->sc; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 2282 | struct ieee80211_conf *conf = &hw->conf; |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 2283 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 2284 | bool all_wiphys_idle = false, disable_radio = false; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2285 | |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 2286 | mutex_lock(&sc->mutex); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2287 | |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 2288 | /* Leave this as the first check */ |
| 2289 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { |
| 2290 | |
| 2291 | spin_lock_bh(&sc->wiphy_lock); |
| 2292 | all_wiphys_idle = ath9k_all_wiphys_idle(sc); |
| 2293 | spin_unlock_bh(&sc->wiphy_lock); |
| 2294 | |
| 2295 | if (conf->flags & IEEE80211_CONF_IDLE){ |
| 2296 | if (all_wiphys_idle) |
| 2297 | disable_radio = true; |
| 2298 | } |
| 2299 | else if (all_wiphys_idle) { |
| 2300 | ath_radio_enable(sc); |
| 2301 | DPRINTF(sc, ATH_DBG_CONFIG, |
| 2302 | "not-idle: enabling radio\n"); |
| 2303 | } |
| 2304 | } |
| 2305 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2306 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
| 2307 | if (conf->flags & IEEE80211_CONF_PS) { |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 2308 | if (!(ah->caps.hw_caps & |
| 2309 | ATH9K_HW_CAP_AUTOSLEEP)) { |
| 2310 | if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { |
| 2311 | sc->imask |= ATH9K_INT_TIM_TIMER; |
| 2312 | ath9k_hw_set_interrupts(sc->sc_ah, |
| 2313 | sc->imask); |
| 2314 | } |
| 2315 | ath9k_hw_setrxabort(sc->sc_ah, 1); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2316 | } |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 2317 | sc->ps_enabled = true; |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2318 | } else { |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame] | 2319 | sc->ps_enabled = false; |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2320 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 2321 | if (!(ah->caps.hw_caps & |
| 2322 | ATH9K_HW_CAP_AUTOSLEEP)) { |
| 2323 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 2324 | sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | |
| 2325 | SC_OP_WAIT_FOR_CAB | |
| 2326 | SC_OP_WAIT_FOR_PSPOLL_DATA | |
| 2327 | SC_OP_WAIT_FOR_TX_ACK); |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 2328 | if (sc->imask & ATH9K_INT_TIM_TIMER) { |
| 2329 | sc->imask &= ~ATH9K_INT_TIM_TIMER; |
| 2330 | ath9k_hw_set_interrupts(sc->sc_ah, |
| 2331 | sc->imask); |
| 2332 | } |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2333 | } |
| 2334 | } |
| 2335 | } |
| 2336 | |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 2337 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 2338 | struct ieee80211_channel *curchan = hw->conf.channel; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 2339 | int pos = curchan->hw_value; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2340 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 2341 | aphy->chan_idx = pos; |
| 2342 | aphy->chan_is_ht = conf_is_ht(conf); |
| 2343 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2344 | if (aphy->state == ATH_WIPHY_SCAN || |
| 2345 | aphy->state == ATH_WIPHY_ACTIVE) |
| 2346 | ath9k_wiphy_pause_all_forced(sc, aphy); |
| 2347 | else { |
| 2348 | /* |
| 2349 | * Do not change operational channel based on a paused |
| 2350 | * wiphy changes. |
| 2351 | */ |
| 2352 | goto skip_chan_change; |
| 2353 | } |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 2354 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2355 | DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
| 2356 | curchan->center_freq); |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 2357 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 2358 | /* XXX: remove me eventualy */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 2359 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 2360 | |
Luis R. Rodriguez | ecf7044 | 2008-12-23 15:58:43 -0800 | [diff] [blame] | 2361 | ath_update_chainmask(sc, conf_is_ht(conf)); |
Sujith | 86060f0 | 2009-01-07 14:25:29 +0530 | [diff] [blame] | 2362 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 2363 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2364 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n"); |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 2365 | mutex_unlock(&sc->mutex); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 2366 | return -EINVAL; |
| 2367 | } |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 2368 | } |
Sujith | 86b89ee | 2008-08-07 10:54:57 +0530 | [diff] [blame] | 2369 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2370 | skip_chan_change: |
Luis R. Rodriguez | 5c020dc | 2008-10-22 13:28:45 -0700 | [diff] [blame] | 2371 | if (changed & IEEE80211_CONF_CHANGE_POWER) |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2372 | sc->config.txpowlimit = 2 * conf->power_level; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2373 | |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 2374 | if (disable_radio) { |
| 2375 | DPRINTF(sc, ATH_DBG_CONFIG, "idle: disabling radio\n"); |
| 2376 | ath_radio_disable(sc); |
| 2377 | } |
| 2378 | |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 2379 | mutex_unlock(&sc->mutex); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2380 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2381 | return 0; |
| 2382 | } |
| 2383 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2384 | #define SUPPORTED_FILTERS \ |
| 2385 | (FIF_PROMISC_IN_BSS | \ |
| 2386 | FIF_ALLMULTI | \ |
| 2387 | FIF_CONTROL | \ |
Luis R. Rodriguez | af6a3fc | 2009-08-08 21:55:16 -0400 | [diff] [blame] | 2388 | FIF_PSPOLL | \ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2389 | FIF_OTHER_BSS | \ |
| 2390 | FIF_BCN_PRBRESP_PROMISC | \ |
| 2391 | FIF_FCSFAIL) |
| 2392 | |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 2393 | /* FIXME: sc->sc_full_reset ? */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2394 | static void ath9k_configure_filter(struct ieee80211_hw *hw, |
| 2395 | unsigned int changed_flags, |
| 2396 | unsigned int *total_flags, |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame^] | 2397 | u64 multicast) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2398 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2399 | struct ath_wiphy *aphy = hw->priv; |
| 2400 | struct ath_softc *sc = aphy->sc; |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 2401 | u32 rfilt; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2402 | |
| 2403 | changed_flags &= SUPPORTED_FILTERS; |
| 2404 | *total_flags &= SUPPORTED_FILTERS; |
| 2405 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2406 | sc->rx.rxfilter = *total_flags; |
Jouni Malinen | aa68aea | 2009-05-19 17:01:41 +0300 | [diff] [blame] | 2407 | ath9k_ps_wakeup(sc); |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 2408 | rfilt = ath_calcrxfilter(sc); |
| 2409 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); |
Jouni Malinen | aa68aea | 2009-05-19 17:01:41 +0300 | [diff] [blame] | 2410 | ath9k_ps_restore(sc); |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 2411 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2412 | DPRINTF(sc, ATH_DBG_CONFIG, "Set HW RX filter: 0x%x\n", sc->rx.rxfilter); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2413 | } |
| 2414 | |
| 2415 | static void ath9k_sta_notify(struct ieee80211_hw *hw, |
| 2416 | struct ieee80211_vif *vif, |
| 2417 | enum sta_notify_cmd cmd, |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 2418 | struct ieee80211_sta *sta) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2419 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2420 | struct ath_wiphy *aphy = hw->priv; |
| 2421 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2422 | |
| 2423 | switch (cmd) { |
| 2424 | case STA_NOTIFY_ADD: |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2425 | ath_node_attach(sc, sta); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2426 | break; |
| 2427 | case STA_NOTIFY_REMOVE: |
Sujith | b5aa9bf | 2008-10-29 10:13:31 +0530 | [diff] [blame] | 2428 | ath_node_detach(sc, sta); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2429 | break; |
| 2430 | default: |
| 2431 | break; |
| 2432 | } |
| 2433 | } |
| 2434 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2435 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2436 | const struct ieee80211_tx_queue_params *params) |
| 2437 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2438 | struct ath_wiphy *aphy = hw->priv; |
| 2439 | struct ath_softc *sc = aphy->sc; |
Sujith | ea9880f | 2008-08-07 10:53:10 +0530 | [diff] [blame] | 2440 | struct ath9k_tx_queue_info qi; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2441 | int ret = 0, qnum; |
| 2442 | |
| 2443 | if (queue >= WME_NUM_AC) |
| 2444 | return 0; |
| 2445 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2446 | mutex_lock(&sc->mutex); |
| 2447 | |
Sujith | 1ffb061 | 2009-03-30 15:28:46 +0530 | [diff] [blame] | 2448 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
| 2449 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2450 | qi.tqi_aifs = params->aifs; |
| 2451 | qi.tqi_cwmin = params->cw_min; |
| 2452 | qi.tqi_cwmax = params->cw_max; |
| 2453 | qi.tqi_burstTime = params->txop; |
| 2454 | qnum = ath_get_hal_qnum(queue, sc); |
| 2455 | |
| 2456 | DPRINTF(sc, ATH_DBG_CONFIG, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2457 | "Configure tx [queue/halq] [%d/%d], " |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2458 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2459 | queue, qnum, params->aifs, params->cw_min, |
| 2460 | params->cw_max, params->txop); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2461 | |
| 2462 | ret = ath_txq_update(sc, qnum, &qi); |
| 2463 | if (ret) |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2464 | DPRINTF(sc, ATH_DBG_FATAL, "TXQ Update failed\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2465 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2466 | mutex_unlock(&sc->mutex); |
| 2467 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2468 | return ret; |
| 2469 | } |
| 2470 | |
| 2471 | static int ath9k_set_key(struct ieee80211_hw *hw, |
| 2472 | enum set_key_cmd cmd, |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 2473 | struct ieee80211_vif *vif, |
| 2474 | struct ieee80211_sta *sta, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2475 | struct ieee80211_key_conf *key) |
| 2476 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2477 | struct ath_wiphy *aphy = hw->priv; |
| 2478 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2479 | int ret = 0; |
| 2480 | |
Jouni Malinen | b3bd89c | 2009-02-24 13:42:01 +0200 | [diff] [blame] | 2481 | if (modparam_nohwcrypt) |
| 2482 | return -ENOSPC; |
| 2483 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2484 | mutex_lock(&sc->mutex); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2485 | ath9k_ps_wakeup(sc); |
Sujith | d8baa93 | 2009-03-30 15:28:25 +0530 | [diff] [blame] | 2486 | DPRINTF(sc, ATH_DBG_CONFIG, "Set HW Key\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2487 | |
| 2488 | switch (cmd) { |
| 2489 | case SET_KEY: |
Jouni Malinen | 3f53dd6 | 2009-02-26 11:18:46 +0200 | [diff] [blame] | 2490 | ret = ath_key_config(sc, vif, sta, key); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 2491 | if (ret >= 0) { |
| 2492 | key->hw_key_idx = ret; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2493 | /* push IV and Michael MIC generation to stack */ |
| 2494 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
Senthil Balasubramanian | 1b96175 | 2008-09-01 19:45:21 +0530 | [diff] [blame] | 2495 | if (key->alg == ALG_TKIP) |
| 2496 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
Jouni Malinen | 0ced0e1 | 2009-01-08 13:32:13 +0200 | [diff] [blame] | 2497 | if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP) |
| 2498 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 2499 | ret = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2500 | } |
| 2501 | break; |
| 2502 | case DISABLE_KEY: |
| 2503 | ath_key_delete(sc, key); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2504 | break; |
| 2505 | default: |
| 2506 | ret = -EINVAL; |
| 2507 | } |
| 2508 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2509 | ath9k_ps_restore(sc); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2510 | mutex_unlock(&sc->mutex); |
| 2511 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2512 | return ret; |
| 2513 | } |
| 2514 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2515 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
| 2516 | struct ieee80211_vif *vif, |
| 2517 | struct ieee80211_bss_conf *bss_conf, |
| 2518 | u32 changed) |
| 2519 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2520 | struct ath_wiphy *aphy = hw->priv; |
| 2521 | struct ath_softc *sc = aphy->sc; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2522 | struct ath_hw *ah = sc->sc_ah; |
| 2523 | struct ath_vif *avp = (void *)vif->drv_priv; |
| 2524 | u32 rfilt = 0; |
| 2525 | int error, i; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2526 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2527 | mutex_lock(&sc->mutex); |
| 2528 | |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2529 | /* |
| 2530 | * TODO: Need to decide which hw opmode to use for |
| 2531 | * multi-interface cases |
| 2532 | * XXX: This belongs into add_interface! |
| 2533 | */ |
| 2534 | if (vif->type == NL80211_IFTYPE_AP && |
| 2535 | ah->opmode != NL80211_IFTYPE_AP) { |
| 2536 | ah->opmode = NL80211_IFTYPE_STATION; |
| 2537 | ath9k_hw_setopmode(ah); |
| 2538 | memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN); |
| 2539 | sc->curaid = 0; |
| 2540 | ath9k_hw_write_associd(sc); |
| 2541 | /* Request full reset to get hw opmode changed properly */ |
| 2542 | sc->sc_flags |= SC_OP_FULL_RESET; |
| 2543 | } |
| 2544 | |
| 2545 | if ((changed & BSS_CHANGED_BSSID) && |
| 2546 | !is_zero_ether_addr(bss_conf->bssid)) { |
| 2547 | switch (vif->type) { |
| 2548 | case NL80211_IFTYPE_STATION: |
| 2549 | case NL80211_IFTYPE_ADHOC: |
| 2550 | case NL80211_IFTYPE_MESH_POINT: |
| 2551 | /* Set BSSID */ |
| 2552 | memcpy(sc->curbssid, bss_conf->bssid, ETH_ALEN); |
| 2553 | memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN); |
| 2554 | sc->curaid = 0; |
| 2555 | ath9k_hw_write_associd(sc); |
| 2556 | |
| 2557 | /* Set aggregation protection mode parameters */ |
| 2558 | sc->config.ath_aggr_prot = 0; |
| 2559 | |
| 2560 | DPRINTF(sc, ATH_DBG_CONFIG, |
| 2561 | "RX filter 0x%x bssid %pM aid 0x%x\n", |
| 2562 | rfilt, sc->curbssid, sc->curaid); |
| 2563 | |
| 2564 | /* need to reconfigure the beacon */ |
| 2565 | sc->sc_flags &= ~SC_OP_BEACONS ; |
| 2566 | |
| 2567 | break; |
| 2568 | default: |
| 2569 | break; |
| 2570 | } |
| 2571 | } |
| 2572 | |
| 2573 | if ((vif->type == NL80211_IFTYPE_ADHOC) || |
| 2574 | (vif->type == NL80211_IFTYPE_AP) || |
| 2575 | (vif->type == NL80211_IFTYPE_MESH_POINT)) { |
| 2576 | if ((changed & BSS_CHANGED_BEACON) || |
| 2577 | (changed & BSS_CHANGED_BEACON_ENABLED && |
| 2578 | bss_conf->enable_beacon)) { |
| 2579 | /* |
| 2580 | * Allocate and setup the beacon frame. |
| 2581 | * |
| 2582 | * Stop any previous beacon DMA. This may be |
| 2583 | * necessary, for example, when an ibss merge |
| 2584 | * causes reconfiguration; we may be called |
| 2585 | * with beacon transmission active. |
| 2586 | */ |
| 2587 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
| 2588 | |
| 2589 | error = ath_beacon_alloc(aphy, vif); |
| 2590 | if (!error) |
| 2591 | ath_beacon_config(sc, vif); |
| 2592 | } |
| 2593 | } |
| 2594 | |
| 2595 | /* Check for WLAN_CAPABILITY_PRIVACY ? */ |
| 2596 | if ((avp->av_opmode != NL80211_IFTYPE_STATION)) { |
| 2597 | for (i = 0; i < IEEE80211_WEP_NKID; i++) |
| 2598 | if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) |
| 2599 | ath9k_hw_keysetmac(sc->sc_ah, |
| 2600 | (u16)i, |
| 2601 | sc->curbssid); |
| 2602 | } |
| 2603 | |
| 2604 | /* Only legacy IBSS for now */ |
| 2605 | if (vif->type == NL80211_IFTYPE_ADHOC) |
| 2606 | ath_update_chainmask(sc, 0); |
| 2607 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2608 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2609 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2610 | bss_conf->use_short_preamble); |
| 2611 | if (bss_conf->use_short_preamble) |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2612 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2613 | else |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2614 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2615 | } |
| 2616 | |
| 2617 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2618 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2619 | bss_conf->use_cts_prot); |
| 2620 | if (bss_conf->use_cts_prot && |
| 2621 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2622 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2623 | else |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2624 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2625 | } |
| 2626 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2627 | if (changed & BSS_CHANGED_ASSOC) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2628 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2629 | bss_conf->assoc); |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2630 | ath9k_bss_assoc_info(sc, vif, bss_conf); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2631 | } |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2632 | |
Johannes Berg | 57c4d7b | 2009-04-23 16:10:04 +0200 | [diff] [blame] | 2633 | /* |
| 2634 | * The HW TSF has to be reset when the beacon interval changes. |
| 2635 | * We set the flag here, and ath_beacon_config_ap() would take this |
| 2636 | * into account when it gets called through the subsequent |
| 2637 | * config_interface() call - with IFCC_BEACON in the changed field. |
| 2638 | */ |
| 2639 | |
| 2640 | if (changed & BSS_CHANGED_BEACON_INT) { |
| 2641 | sc->sc_flags |= SC_OP_TSF_RESET; |
| 2642 | sc->beacon_interval = bss_conf->beacon_int; |
| 2643 | } |
| 2644 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2645 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2646 | } |
| 2647 | |
| 2648 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
| 2649 | { |
| 2650 | u64 tsf; |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2651 | struct ath_wiphy *aphy = hw->priv; |
| 2652 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2653 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2654 | mutex_lock(&sc->mutex); |
| 2655 | tsf = ath9k_hw_gettsf64(sc->sc_ah); |
| 2656 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2657 | |
| 2658 | return tsf; |
| 2659 | } |
| 2660 | |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2661 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
| 2662 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2663 | struct ath_wiphy *aphy = hw->priv; |
| 2664 | struct ath_softc *sc = aphy->sc; |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2665 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2666 | mutex_lock(&sc->mutex); |
| 2667 | ath9k_hw_settsf64(sc->sc_ah, tsf); |
| 2668 | mutex_unlock(&sc->mutex); |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2669 | } |
| 2670 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2671 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
| 2672 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2673 | struct ath_wiphy *aphy = hw->priv; |
| 2674 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2675 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2676 | mutex_lock(&sc->mutex); |
| 2677 | ath9k_hw_reset_tsf(sc->sc_ah); |
| 2678 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2679 | } |
| 2680 | |
| 2681 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2682 | enum ieee80211_ampdu_mlme_action action, |
| 2683 | struct ieee80211_sta *sta, |
| 2684 | u16 tid, u16 *ssn) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2685 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2686 | struct ath_wiphy *aphy = hw->priv; |
| 2687 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2688 | int ret = 0; |
| 2689 | |
| 2690 | switch (action) { |
| 2691 | case IEEE80211_AMPDU_RX_START: |
Sujith | dca3edb | 2008-10-29 10:19:01 +0530 | [diff] [blame] | 2692 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
| 2693 | ret = -ENOTSUPP; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2694 | break; |
| 2695 | case IEEE80211_AMPDU_RX_STOP: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2696 | break; |
| 2697 | case IEEE80211_AMPDU_TX_START: |
Sujith | f83da96 | 2009-07-23 15:32:37 +0530 | [diff] [blame] | 2698 | ath_tx_aggr_start(sc, sta, tid, ssn); |
| 2699 | ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2700 | break; |
| 2701 | case IEEE80211_AMPDU_TX_STOP: |
Sujith | f83da96 | 2009-07-23 15:32:37 +0530 | [diff] [blame] | 2702 | ath_tx_aggr_stop(sc, sta, tid); |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 2703 | ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2704 | break; |
Johannes Berg | b172023 | 2009-03-23 17:28:39 +0100 | [diff] [blame] | 2705 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
Sujith | 8469cde | 2008-10-29 10:19:28 +0530 | [diff] [blame] | 2706 | ath_tx_aggr_resume(sc, sta, tid); |
| 2707 | break; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2708 | default: |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2709 | DPRINTF(sc, ATH_DBG_FATAL, "Unknown AMPDU action\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2710 | } |
| 2711 | |
| 2712 | return ret; |
| 2713 | } |
| 2714 | |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2715 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
| 2716 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2717 | struct ath_wiphy *aphy = hw->priv; |
| 2718 | struct ath_softc *sc = aphy->sc; |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2719 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2720 | if (ath9k_wiphy_scanning(sc)) { |
| 2721 | printk(KERN_DEBUG "ath9k: Two wiphys trying to scan at the " |
| 2722 | "same time\n"); |
| 2723 | /* |
| 2724 | * Do not allow the concurrent scanning state for now. This |
| 2725 | * could be improved with scanning control moved into ath9k. |
| 2726 | */ |
| 2727 | return; |
| 2728 | } |
| 2729 | |
| 2730 | aphy->state = ATH_WIPHY_SCAN; |
| 2731 | ath9k_wiphy_pause_all_forced(sc, aphy); |
| 2732 | |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 2733 | spin_lock_bh(&sc->ani_lock); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2734 | sc->sc_flags |= SC_OP_SCANNING; |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 2735 | spin_unlock_bh(&sc->ani_lock); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2736 | } |
| 2737 | |
| 2738 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) |
| 2739 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2740 | struct ath_wiphy *aphy = hw->priv; |
| 2741 | struct ath_softc *sc = aphy->sc; |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2742 | |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 2743 | spin_lock_bh(&sc->ani_lock); |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2744 | aphy->state = ATH_WIPHY_ACTIVE; |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2745 | sc->sc_flags &= ~SC_OP_SCANNING; |
Sujith | 9c07a77 | 2009-04-13 21:56:36 +0530 | [diff] [blame] | 2746 | sc->sc_flags |= SC_OP_FULL_RESET; |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 2747 | spin_unlock_bh(&sc->ani_lock); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2748 | } |
| 2749 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2750 | struct ieee80211_ops ath9k_ops = { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2751 | .tx = ath9k_tx, |
| 2752 | .start = ath9k_start, |
| 2753 | .stop = ath9k_stop, |
| 2754 | .add_interface = ath9k_add_interface, |
| 2755 | .remove_interface = ath9k_remove_interface, |
| 2756 | .config = ath9k_config, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2757 | .configure_filter = ath9k_configure_filter, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2758 | .sta_notify = ath9k_sta_notify, |
| 2759 | .conf_tx = ath9k_conf_tx, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2760 | .bss_info_changed = ath9k_bss_info_changed, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2761 | .set_key = ath9k_set_key, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2762 | .get_tsf = ath9k_get_tsf, |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2763 | .set_tsf = ath9k_set_tsf, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2764 | .reset_tsf = ath9k_reset_tsf, |
Johannes Berg | 4233df6 | 2008-10-13 13:35:05 +0200 | [diff] [blame] | 2765 | .ampdu_action = ath9k_ampdu_action, |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2766 | .sw_scan_start = ath9k_sw_scan_start, |
| 2767 | .sw_scan_complete = ath9k_sw_scan_complete, |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 2768 | .rfkill_poll = ath9k_rfkill_poll_state, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2769 | }; |
| 2770 | |
Benoit PAPILLAULT | 392dff8 | 2008-11-06 22:26:49 +0100 | [diff] [blame] | 2771 | static struct { |
| 2772 | u32 version; |
| 2773 | const char * name; |
| 2774 | } ath_mac_bb_names[] = { |
| 2775 | { AR_SREV_VERSION_5416_PCI, "5416" }, |
| 2776 | { AR_SREV_VERSION_5416_PCIE, "5418" }, |
| 2777 | { AR_SREV_VERSION_9100, "9100" }, |
| 2778 | { AR_SREV_VERSION_9160, "9160" }, |
| 2779 | { AR_SREV_VERSION_9280, "9280" }, |
Vivek Natarajan | ac88b6e | 2009-07-23 10:59:57 +0530 | [diff] [blame] | 2780 | { AR_SREV_VERSION_9285, "9285" }, |
| 2781 | { AR_SREV_VERSION_9287, "9287" } |
Benoit PAPILLAULT | 392dff8 | 2008-11-06 22:26:49 +0100 | [diff] [blame] | 2782 | }; |
| 2783 | |
| 2784 | static struct { |
| 2785 | u16 version; |
| 2786 | const char * name; |
| 2787 | } ath_rf_names[] = { |
| 2788 | { 0, "5133" }, |
| 2789 | { AR_RAD5133_SREV_MAJOR, "5133" }, |
| 2790 | { AR_RAD5122_SREV_MAJOR, "5122" }, |
| 2791 | { AR_RAD2133_SREV_MAJOR, "2133" }, |
| 2792 | { AR_RAD2122_SREV_MAJOR, "2122" } |
| 2793 | }; |
| 2794 | |
| 2795 | /* |
| 2796 | * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. |
| 2797 | */ |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2798 | const char * |
Benoit PAPILLAULT | 392dff8 | 2008-11-06 22:26:49 +0100 | [diff] [blame] | 2799 | ath_mac_bb_name(u32 mac_bb_version) |
| 2800 | { |
| 2801 | int i; |
| 2802 | |
| 2803 | for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) { |
| 2804 | if (ath_mac_bb_names[i].version == mac_bb_version) { |
| 2805 | return ath_mac_bb_names[i].name; |
| 2806 | } |
| 2807 | } |
| 2808 | |
| 2809 | return "????"; |
| 2810 | } |
| 2811 | |
| 2812 | /* |
| 2813 | * Return the RF name. "????" is returned if the RF is unknown. |
| 2814 | */ |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2815 | const char * |
Benoit PAPILLAULT | 392dff8 | 2008-11-06 22:26:49 +0100 | [diff] [blame] | 2816 | ath_rf_name(u16 rf_version) |
| 2817 | { |
| 2818 | int i; |
| 2819 | |
| 2820 | for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) { |
| 2821 | if (ath_rf_names[i].version == rf_version) { |
| 2822 | return ath_rf_names[i].name; |
| 2823 | } |
| 2824 | } |
| 2825 | |
| 2826 | return "????"; |
| 2827 | } |
| 2828 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2829 | static int __init ath9k_init(void) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2830 | { |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2831 | int error; |
| 2832 | |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2833 | /* Register rate control algorithm */ |
| 2834 | error = ath_rate_control_register(); |
| 2835 | if (error != 0) { |
| 2836 | printk(KERN_ERR |
Luis R. Rodriguez | b51bb3c | 2009-01-26 07:30:03 -0800 | [diff] [blame] | 2837 | "ath9k: Unable to register rate control " |
| 2838 | "algorithm: %d\n", |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2839 | error); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2840 | goto err_out; |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2841 | } |
| 2842 | |
Gabor Juhos | 19d8bc2 | 2009-03-05 16:55:18 +0100 | [diff] [blame] | 2843 | error = ath9k_debug_create_root(); |
| 2844 | if (error) { |
| 2845 | printk(KERN_ERR |
| 2846 | "ath9k: Unable to create debugfs root: %d\n", |
| 2847 | error); |
| 2848 | goto err_rate_unregister; |
| 2849 | } |
| 2850 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2851 | error = ath_pci_init(); |
| 2852 | if (error < 0) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2853 | printk(KERN_ERR |
Luis R. Rodriguez | b51bb3c | 2009-01-26 07:30:03 -0800 | [diff] [blame] | 2854 | "ath9k: No PCI devices found, driver not installed.\n"); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2855 | error = -ENODEV; |
Gabor Juhos | 19d8bc2 | 2009-03-05 16:55:18 +0100 | [diff] [blame] | 2856 | goto err_remove_root; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2857 | } |
| 2858 | |
Gabor Juhos | 09329d3 | 2009-01-14 20:17:07 +0100 | [diff] [blame] | 2859 | error = ath_ahb_init(); |
| 2860 | if (error < 0) { |
| 2861 | error = -ENODEV; |
| 2862 | goto err_pci_exit; |
| 2863 | } |
| 2864 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2865 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2866 | |
Gabor Juhos | 09329d3 | 2009-01-14 20:17:07 +0100 | [diff] [blame] | 2867 | err_pci_exit: |
| 2868 | ath_pci_exit(); |
| 2869 | |
Gabor Juhos | 19d8bc2 | 2009-03-05 16:55:18 +0100 | [diff] [blame] | 2870 | err_remove_root: |
| 2871 | ath9k_debug_remove_root(); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2872 | err_rate_unregister: |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2873 | ath_rate_control_unregister(); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2874 | err_out: |
| 2875 | return error; |
| 2876 | } |
| 2877 | module_init(ath9k_init); |
| 2878 | |
| 2879 | static void __exit ath9k_exit(void) |
| 2880 | { |
Gabor Juhos | 09329d3 | 2009-01-14 20:17:07 +0100 | [diff] [blame] | 2881 | ath_ahb_exit(); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2882 | ath_pci_exit(); |
Gabor Juhos | 19d8bc2 | 2009-03-05 16:55:18 +0100 | [diff] [blame] | 2883 | ath9k_debug_remove_root(); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2884 | ath_rate_control_unregister(); |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2885 | printk(KERN_INFO "%s: Driver unloaded\n", dev_info); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2886 | } |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2887 | module_exit(ath9k_exit); |