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 | |
| 20 | #define ATH_PCI_VERSION "0.1" |
| 21 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 22 | static char *dev_info = "ath9k"; |
| 23 | |
| 24 | MODULE_AUTHOR("Atheros Communications"); |
| 25 | MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); |
| 26 | MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); |
| 27 | MODULE_LICENSE("Dual BSD/GPL"); |
| 28 | |
Jouni Malinen | b3bd89c | 2009-02-24 13:42:01 +0200 | [diff] [blame] | 29 | static int modparam_nohwcrypt; |
| 30 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); |
| 31 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); |
| 32 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 33 | /* We use the hw_value as an index into our private channel structure */ |
| 34 | |
| 35 | #define CHAN2G(_freq, _idx) { \ |
| 36 | .center_freq = (_freq), \ |
| 37 | .hw_value = (_idx), \ |
Luis R. Rodriguez | eeddfd9 | 2009-05-19 17:49:46 -0400 | [diff] [blame] | 38 | .max_power = 20, \ |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | #define CHAN5G(_freq, _idx) { \ |
| 42 | .band = IEEE80211_BAND_5GHZ, \ |
| 43 | .center_freq = (_freq), \ |
| 44 | .hw_value = (_idx), \ |
Luis R. Rodriguez | eeddfd9 | 2009-05-19 17:49:46 -0400 | [diff] [blame] | 45 | .max_power = 20, \ |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 46 | } |
| 47 | |
| 48 | /* Some 2 GHz radios are actually tunable on 2312-2732 |
| 49 | * on 5 MHz steps, we support the channels which we know |
| 50 | * we have calibration data for all cards though to make |
| 51 | * this static */ |
| 52 | static struct ieee80211_channel ath9k_2ghz_chantable[] = { |
| 53 | CHAN2G(2412, 0), /* Channel 1 */ |
| 54 | CHAN2G(2417, 1), /* Channel 2 */ |
| 55 | CHAN2G(2422, 2), /* Channel 3 */ |
| 56 | CHAN2G(2427, 3), /* Channel 4 */ |
| 57 | CHAN2G(2432, 4), /* Channel 5 */ |
| 58 | CHAN2G(2437, 5), /* Channel 6 */ |
| 59 | CHAN2G(2442, 6), /* Channel 7 */ |
| 60 | CHAN2G(2447, 7), /* Channel 8 */ |
| 61 | CHAN2G(2452, 8), /* Channel 9 */ |
| 62 | CHAN2G(2457, 9), /* Channel 10 */ |
| 63 | CHAN2G(2462, 10), /* Channel 11 */ |
| 64 | CHAN2G(2467, 11), /* Channel 12 */ |
| 65 | CHAN2G(2472, 12), /* Channel 13 */ |
| 66 | CHAN2G(2484, 13), /* Channel 14 */ |
| 67 | }; |
| 68 | |
| 69 | /* Some 5 GHz radios are actually tunable on XXXX-YYYY |
| 70 | * on 5 MHz steps, we support the channels which we know |
| 71 | * we have calibration data for all cards though to make |
| 72 | * this static */ |
| 73 | static struct ieee80211_channel ath9k_5ghz_chantable[] = { |
| 74 | /* _We_ call this UNII 1 */ |
| 75 | CHAN5G(5180, 14), /* Channel 36 */ |
| 76 | CHAN5G(5200, 15), /* Channel 40 */ |
| 77 | CHAN5G(5220, 16), /* Channel 44 */ |
| 78 | CHAN5G(5240, 17), /* Channel 48 */ |
| 79 | /* _We_ call this UNII 2 */ |
| 80 | CHAN5G(5260, 18), /* Channel 52 */ |
| 81 | CHAN5G(5280, 19), /* Channel 56 */ |
| 82 | CHAN5G(5300, 20), /* Channel 60 */ |
| 83 | CHAN5G(5320, 21), /* Channel 64 */ |
| 84 | /* _We_ call this "Middle band" */ |
| 85 | CHAN5G(5500, 22), /* Channel 100 */ |
| 86 | CHAN5G(5520, 23), /* Channel 104 */ |
| 87 | CHAN5G(5540, 24), /* Channel 108 */ |
| 88 | CHAN5G(5560, 25), /* Channel 112 */ |
| 89 | CHAN5G(5580, 26), /* Channel 116 */ |
| 90 | CHAN5G(5600, 27), /* Channel 120 */ |
| 91 | CHAN5G(5620, 28), /* Channel 124 */ |
| 92 | CHAN5G(5640, 29), /* Channel 128 */ |
| 93 | CHAN5G(5660, 30), /* Channel 132 */ |
| 94 | CHAN5G(5680, 31), /* Channel 136 */ |
| 95 | CHAN5G(5700, 32), /* Channel 140 */ |
| 96 | /* _We_ call this UNII 3 */ |
| 97 | CHAN5G(5745, 33), /* Channel 149 */ |
| 98 | CHAN5G(5765, 34), /* Channel 153 */ |
| 99 | CHAN5G(5785, 35), /* Channel 157 */ |
| 100 | CHAN5G(5805, 36), /* Channel 161 */ |
| 101 | CHAN5G(5825, 37), /* Channel 165 */ |
| 102 | }; |
| 103 | |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 104 | static void ath_cache_conf_rate(struct ath_softc *sc, |
| 105 | struct ieee80211_conf *conf) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 106 | { |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 107 | switch (conf->channel->band) { |
| 108 | case IEEE80211_BAND_2GHZ: |
| 109 | if (conf_is_ht20(conf)) |
| 110 | sc->cur_rate_table = |
| 111 | sc->hw_rate_table[ATH9K_MODE_11NG_HT20]; |
| 112 | else if (conf_is_ht40_minus(conf)) |
| 113 | sc->cur_rate_table = |
| 114 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40MINUS]; |
| 115 | else if (conf_is_ht40_plus(conf)) |
| 116 | sc->cur_rate_table = |
| 117 | sc->hw_rate_table[ATH9K_MODE_11NG_HT40PLUS]; |
Luis R. Rodriguez | 9674225 | 2008-12-23 15:58:38 -0800 | [diff] [blame] | 118 | else |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 119 | sc->cur_rate_table = |
| 120 | sc->hw_rate_table[ATH9K_MODE_11G]; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 121 | break; |
| 122 | case IEEE80211_BAND_5GHZ: |
| 123 | if (conf_is_ht20(conf)) |
| 124 | sc->cur_rate_table = |
| 125 | sc->hw_rate_table[ATH9K_MODE_11NA_HT20]; |
| 126 | else if (conf_is_ht40_minus(conf)) |
| 127 | sc->cur_rate_table = |
| 128 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40MINUS]; |
| 129 | else if (conf_is_ht40_plus(conf)) |
| 130 | sc->cur_rate_table = |
| 131 | sc->hw_rate_table[ATH9K_MODE_11NA_HT40PLUS]; |
| 132 | else |
Luis R. Rodriguez | 9674225 | 2008-12-23 15:58:38 -0800 | [diff] [blame] | 133 | sc->cur_rate_table = |
| 134 | sc->hw_rate_table[ATH9K_MODE_11A]; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 135 | break; |
| 136 | default: |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 137 | BUG_ON(1); |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 138 | break; |
| 139 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 140 | } |
| 141 | |
| 142 | static void ath_update_txpow(struct ath_softc *sc) |
| 143 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 144 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 145 | u32 txpow; |
| 146 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 147 | if (sc->curtxpow != sc->config.txpowlimit) { |
| 148 | ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 149 | /* read back in case value is clamped */ |
| 150 | ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 151 | sc->curtxpow = txpow; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 152 | } |
| 153 | } |
| 154 | |
| 155 | static u8 parse_mpdudensity(u8 mpdudensity) |
| 156 | { |
| 157 | /* |
| 158 | * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": |
| 159 | * 0 for no restriction |
| 160 | * 1 for 1/4 us |
| 161 | * 2 for 1/2 us |
| 162 | * 3 for 1 us |
| 163 | * 4 for 2 us |
| 164 | * 5 for 4 us |
| 165 | * 6 for 8 us |
| 166 | * 7 for 16 us |
| 167 | */ |
| 168 | switch (mpdudensity) { |
| 169 | case 0: |
| 170 | return 0; |
| 171 | case 1: |
| 172 | case 2: |
| 173 | case 3: |
| 174 | /* Our lower layer calculations limit our precision to |
| 175 | 1 microsecond */ |
| 176 | return 1; |
| 177 | case 4: |
| 178 | return 2; |
| 179 | case 5: |
| 180 | return 4; |
| 181 | case 6: |
| 182 | return 8; |
| 183 | case 7: |
| 184 | return 16; |
| 185 | default: |
| 186 | return 0; |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | static void ath_setup_rates(struct ath_softc *sc, enum ieee80211_band band) |
| 191 | { |
Luis R. Rodriguez | 4f0fc7c | 2009-05-06 02:20:00 -0400 | [diff] [blame] | 192 | const struct ath_rate_table *rate_table = NULL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 193 | struct ieee80211_supported_band *sband; |
| 194 | struct ieee80211_rate *rate; |
| 195 | int i, maxrates; |
| 196 | |
| 197 | switch (band) { |
| 198 | case IEEE80211_BAND_2GHZ: |
| 199 | rate_table = sc->hw_rate_table[ATH9K_MODE_11G]; |
| 200 | break; |
| 201 | case IEEE80211_BAND_5GHZ: |
| 202 | rate_table = sc->hw_rate_table[ATH9K_MODE_11A]; |
| 203 | break; |
| 204 | default: |
| 205 | break; |
| 206 | } |
| 207 | |
| 208 | if (rate_table == NULL) |
| 209 | return; |
| 210 | |
| 211 | sband = &sc->sbands[band]; |
| 212 | rate = sc->rates[band]; |
| 213 | |
| 214 | if (rate_table->rate_cnt > ATH_RATE_MAX) |
| 215 | maxrates = ATH_RATE_MAX; |
| 216 | else |
| 217 | maxrates = rate_table->rate_cnt; |
| 218 | |
| 219 | for (i = 0; i < maxrates; i++) { |
| 220 | rate[i].bitrate = rate_table->info[i].ratekbps / 100; |
| 221 | rate[i].hw_value = rate_table->info[i].ratecode; |
Sujith | f46730d | 2009-01-27 13:51:03 +0530 | [diff] [blame] | 222 | if (rate_table->info[i].short_preamble) { |
| 223 | rate[i].hw_value_short = rate_table->info[i].ratecode | |
| 224 | rate_table->info[i].short_preamble; |
| 225 | rate[i].flags = IEEE80211_RATE_SHORT_PREAMBLE; |
| 226 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 227 | sband->n_bitrates++; |
Sujith | f46730d | 2009-01-27 13:51:03 +0530 | [diff] [blame] | 228 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 229 | DPRINTF(sc, ATH_DBG_CONFIG, "Rate: %2dMbps, ratecode: %2d\n", |
| 230 | rate[i].bitrate / 10, rate[i].hw_value); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 231 | } |
| 232 | } |
| 233 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 234 | static struct ath9k_channel *ath_get_curchannel(struct ath_softc *sc, |
| 235 | struct ieee80211_hw *hw) |
| 236 | { |
| 237 | struct ieee80211_channel *curchan = hw->conf.channel; |
| 238 | struct ath9k_channel *channel; |
| 239 | u8 chan_idx; |
| 240 | |
| 241 | chan_idx = curchan->hw_value; |
| 242 | channel = &sc->sc_ah->channels[chan_idx]; |
| 243 | ath9k_update_ichannel(sc, hw, channel); |
| 244 | return channel; |
| 245 | } |
| 246 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 247 | /* |
| 248 | * Set/change channels. If the channel is really being changed, it's done |
| 249 | * by reseting the chip. To accomplish this we must first cleanup any pending |
| 250 | * DMA, then restart stuff. |
| 251 | */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 252 | int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw, |
| 253 | struct ath9k_channel *hchan) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 254 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 255 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 256 | bool fastcc = true, stopped; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 257 | struct ieee80211_channel *channel = hw->conf.channel; |
| 258 | int r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 259 | |
| 260 | if (sc->sc_flags & SC_OP_INVALID) |
| 261 | return -EIO; |
| 262 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 263 | ath9k_ps_wakeup(sc); |
| 264 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 265 | /* |
| 266 | * This is only performed if the channel settings have |
| 267 | * actually changed. |
| 268 | * |
| 269 | * To switch channels clear any pending DMA operations; |
| 270 | * wait long enough for the RX fifo to drain, reset the |
| 271 | * hardware at the new frequency, and then re-enable |
| 272 | * the relevant bits of the h/w. |
| 273 | */ |
| 274 | ath9k_hw_set_interrupts(ah, 0); |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 275 | ath_drain_all_txq(sc, false); |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 276 | stopped = ath_stoprecv(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 277 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 278 | /* XXX: do not flush receive queue here. We don't want |
| 279 | * to flush data frames already in queue because of |
| 280 | * changing channel. */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 281 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 282 | if (!stopped || (sc->sc_flags & SC_OP_FULL_RESET)) |
| 283 | fastcc = false; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 284 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 285 | DPRINTF(sc, ATH_DBG_CONFIG, |
| 286 | "(%u MHz) -> (%u MHz), chanwidth: %d\n", |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 287 | sc->sc_ah->curchan->channel, |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 288 | channel->center_freq, sc->tx_chan_width); |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 289 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 290 | spin_lock_bh(&sc->sc_resetlock); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 291 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 292 | r = ath9k_hw_reset(ah, hchan, fastcc); |
| 293 | if (r) { |
| 294 | DPRINTF(sc, ATH_DBG_FATAL, |
| 295 | "Unable to reset channel (%u Mhz) " |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 296 | "reset status %d\n", |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 297 | channel->center_freq, r); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 298 | spin_unlock_bh(&sc->sc_resetlock); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 299 | goto ps_restore; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 300 | } |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 301 | spin_unlock_bh(&sc->sc_resetlock); |
| 302 | |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 303 | sc->sc_flags &= ~SC_OP_FULL_RESET; |
| 304 | |
| 305 | if (ath_startrecv(sc) != 0) { |
| 306 | DPRINTF(sc, ATH_DBG_FATAL, |
| 307 | "Unable to restart recv logic\n"); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 308 | r = -EIO; |
| 309 | goto ps_restore; |
Luis R. Rodriguez | c0d7c7a | 2008-12-23 15:58:50 -0800 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | ath_cache_conf_rate(sc, &hw->conf); |
| 313 | ath_update_txpow(sc); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 314 | ath9k_hw_set_interrupts(ah, sc->imask); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 315 | |
| 316 | ps_restore: |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 317 | ath9k_ps_restore(sc); |
Gabor Juhos | 3989279 | 2009-06-15 17:49:09 +0200 | [diff] [blame] | 318 | return r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 319 | } |
| 320 | |
| 321 | /* |
| 322 | * This routine performs the periodic noise floor calibration function |
| 323 | * that is used to adjust and optimize the chip performance. This |
| 324 | * takes environmental changes (location, temperature) into account. |
| 325 | * When the task is complete, it reschedules itself depending on the |
| 326 | * appropriate interval that was calculated. |
| 327 | */ |
| 328 | static void ath_ani_calibrate(unsigned long data) |
| 329 | { |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 330 | struct ath_softc *sc = (struct ath_softc *)data; |
| 331 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 332 | bool longcal = false; |
| 333 | bool shortcal = false; |
| 334 | bool aniflag = false; |
| 335 | unsigned int timestamp = jiffies_to_msecs(jiffies); |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 336 | u32 cal_interval, short_cal_interval; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 337 | |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 338 | short_cal_interval = (ah->opmode == NL80211_IFTYPE_AP) ? |
| 339 | ATH_AP_SHORT_CALINTERVAL : ATH_STA_SHORT_CALINTERVAL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 340 | |
| 341 | /* |
| 342 | * don't calibrate when we're scanning. |
| 343 | * we are most likely not on our home channel. |
| 344 | */ |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 345 | spin_lock(&sc->ani_lock); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 346 | if (sc->sc_flags & SC_OP_SCANNING) |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 347 | goto set_timer; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 348 | |
Jouni Malinen | 1ffc1c6 | 2009-05-19 17:01:39 +0300 | [diff] [blame] | 349 | /* Only calibrate if awake */ |
| 350 | if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE) |
| 351 | goto set_timer; |
| 352 | |
| 353 | ath9k_ps_wakeup(sc); |
| 354 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 355 | /* Long calibration runs independently of short calibration. */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 356 | if ((timestamp - sc->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 357 | longcal = true; |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 358 | DPRINTF(sc, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 359 | sc->ani.longcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 360 | } |
| 361 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 362 | /* Short calibration applies only while caldone is false */ |
| 363 | if (!sc->ani.caldone) { |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 364 | if ((timestamp - sc->ani.shortcal_timer) >= short_cal_interval) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 365 | shortcal = true; |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 366 | DPRINTF(sc, ATH_DBG_ANI, "shortcal @%lu\n", jiffies); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 367 | sc->ani.shortcal_timer = timestamp; |
| 368 | sc->ani.resetcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 369 | } |
| 370 | } else { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 371 | if ((timestamp - sc->ani.resetcal_timer) >= |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 372 | ATH_RESTART_CALINTERVAL) { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 373 | sc->ani.caldone = ath9k_hw_reset_calvalid(ah); |
| 374 | if (sc->ani.caldone) |
| 375 | sc->ani.resetcal_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 376 | } |
| 377 | } |
| 378 | |
| 379 | /* Verify whether we must check ANI */ |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 380 | if ((timestamp - sc->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 381 | aniflag = true; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 382 | sc->ani.checkani_timer = timestamp; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 383 | } |
| 384 | |
| 385 | /* Skip all processing if there's nothing to do. */ |
| 386 | if (longcal || shortcal || aniflag) { |
| 387 | /* Call ANI routine if necessary */ |
| 388 | if (aniflag) |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 389 | ath9k_hw_ani_monitor(ah, &sc->nodestats, ah->curchan); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 390 | |
| 391 | /* Perform calibration if necessary */ |
| 392 | if (longcal || shortcal) { |
Sujith | 379f044 | 2009-04-13 21:56:48 +0530 | [diff] [blame] | 393 | sc->ani.caldone = ath9k_hw_calibrate(ah, ah->curchan, |
| 394 | sc->rx_chainmask, longcal); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 395 | |
Sujith | 379f044 | 2009-04-13 21:56:48 +0530 | [diff] [blame] | 396 | if (longcal) |
| 397 | sc->ani.noise_floor = ath9k_hw_getchan_noise(ah, |
| 398 | ah->curchan); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 399 | |
Sujith | 379f044 | 2009-04-13 21:56:48 +0530 | [diff] [blame] | 400 | DPRINTF(sc, ATH_DBG_ANI," calibrate chan %u/%x nf: %d\n", |
| 401 | ah->curchan->channel, ah->curchan->channelFlags, |
| 402 | sc->ani.noise_floor); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 403 | } |
| 404 | } |
| 405 | |
Jouni Malinen | 1ffc1c6 | 2009-05-19 17:01:39 +0300 | [diff] [blame] | 406 | ath9k_ps_restore(sc); |
| 407 | |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 408 | set_timer: |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 409 | spin_unlock(&sc->ani_lock); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 410 | /* |
| 411 | * Set timer interval based on previous results. |
| 412 | * The interval must be the shortest necessary to satisfy ANI, |
| 413 | * short calibration and long calibration. |
| 414 | */ |
Sujith | aac9207 | 2008-12-02 18:37:54 +0530 | [diff] [blame] | 415 | cal_interval = ATH_LONG_CALINTERVAL; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 416 | if (sc->sc_ah->config.enable_ani) |
Sujith | aac9207 | 2008-12-02 18:37:54 +0530 | [diff] [blame] | 417 | cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 418 | if (!sc->ani.caldone) |
Sujith | 20977d3 | 2009-02-20 15:13:28 +0530 | [diff] [blame] | 419 | cal_interval = min(cal_interval, (u32)short_cal_interval); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 420 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 421 | mod_timer(&sc->ani.timer, jiffies + msecs_to_jiffies(cal_interval)); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 422 | } |
| 423 | |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 424 | static void ath_start_ani(struct ath_softc *sc) |
| 425 | { |
| 426 | unsigned long timestamp = jiffies_to_msecs(jiffies); |
| 427 | |
| 428 | sc->ani.longcal_timer = timestamp; |
| 429 | sc->ani.shortcal_timer = timestamp; |
| 430 | sc->ani.checkani_timer = timestamp; |
| 431 | |
| 432 | mod_timer(&sc->ani.timer, |
| 433 | jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); |
| 434 | } |
| 435 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 436 | /* |
| 437 | * Update tx/rx chainmask. For legacy association, |
| 438 | * hard code chainmask to 1x1, for 11n association, use |
Vasanthakumar Thiagarajan | c97c92d | 2009-01-02 15:35:46 +0530 | [diff] [blame] | 439 | * the chainmask configuration, for bt coexistence, use |
| 440 | * the chainmask configuration even in legacy mode. |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 441 | */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 442 | void ath_update_chainmask(struct ath_softc *sc, int is_ht) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 443 | { |
Vasanthakumar Thiagarajan | c97c92d | 2009-01-02 15:35:46 +0530 | [diff] [blame] | 444 | if (is_ht || |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 445 | (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX)) { |
| 446 | sc->tx_chainmask = sc->sc_ah->caps.tx_chainmask; |
| 447 | sc->rx_chainmask = sc->sc_ah->caps.rx_chainmask; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 448 | } else { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 449 | sc->tx_chainmask = 1; |
| 450 | sc->rx_chainmask = 1; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 451 | } |
| 452 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 453 | DPRINTF(sc, ATH_DBG_CONFIG, "tx chmask: %d, rx chmask: %d\n", |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 454 | sc->tx_chainmask, sc->rx_chainmask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 455 | } |
| 456 | |
| 457 | static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) |
| 458 | { |
| 459 | struct ath_node *an; |
| 460 | |
| 461 | an = (struct ath_node *)sta->drv_priv; |
| 462 | |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 463 | if (sc->sc_flags & SC_OP_TXAGGR) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 464 | ath_tx_node_init(sc, an); |
Sujith | 9e98ac6 | 2009-07-23 15:32:34 +0530 | [diff] [blame] | 465 | an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 466 | sta->ht_cap.ampdu_factor); |
| 467 | an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); |
Senthil Balasubramanian | a59b5a5 | 2009-07-14 20:17:07 -0400 | [diff] [blame] | 468 | an->last_rssi = ATH_RSSI_DUMMY_MARKER; |
Sujith | 87792ef | 2009-03-30 15:28:48 +0530 | [diff] [blame] | 469 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 470 | } |
| 471 | |
| 472 | static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) |
| 473 | { |
| 474 | struct ath_node *an = (struct ath_node *)sta->drv_priv; |
| 475 | |
| 476 | if (sc->sc_flags & SC_OP_TXAGGR) |
| 477 | ath_tx_node_cleanup(sc, an); |
| 478 | } |
| 479 | |
| 480 | static void ath9k_tasklet(unsigned long data) |
| 481 | { |
| 482 | struct ath_softc *sc = (struct ath_softc *)data; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 483 | u32 status = sc->intrstatus; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 484 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 485 | ath9k_ps_wakeup(sc); |
| 486 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 487 | if (status & ATH9K_INT_FATAL) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 488 | ath_reset(sc, false); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 489 | ath9k_ps_restore(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 490 | return; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 491 | } |
| 492 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 493 | if (status & (ATH9K_INT_RX | ATH9K_INT_RXEOL | ATH9K_INT_RXORN)) { |
| 494 | spin_lock_bh(&sc->rx.rxflushlock); |
| 495 | ath_rx_tasklet(sc, 0); |
| 496 | spin_unlock_bh(&sc->rx.rxflushlock); |
| 497 | } |
| 498 | |
| 499 | if (status & ATH9K_INT_TX) |
| 500 | ath_tx_tasklet(sc); |
| 501 | |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame^] | 502 | if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { |
Jouni Malinen | 54ce846 | 2009-05-19 17:01:40 +0300 | [diff] [blame] | 503 | /* |
| 504 | * TSF sync does not look correct; remain awake to sync with |
| 505 | * the next Beacon. |
| 506 | */ |
| 507 | DPRINTF(sc, ATH_DBG_PS, "TSFOOR - Sync with next Beacon\n"); |
Jouni Malinen | ccdfeab | 2009-05-20 21:59:08 +0300 | [diff] [blame] | 508 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON | SC_OP_BEACON_SYNC; |
Jouni Malinen | 54ce846 | 2009-05-19 17:01:40 +0300 | [diff] [blame] | 509 | } |
| 510 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 511 | /* re-enable hardware interrupt */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 512 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 513 | ath9k_ps_restore(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 514 | } |
| 515 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 516 | irqreturn_t ath_isr(int irq, void *dev) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 517 | { |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 518 | #define SCHED_INTR ( \ |
| 519 | ATH9K_INT_FATAL | \ |
| 520 | ATH9K_INT_RXORN | \ |
| 521 | ATH9K_INT_RXEOL | \ |
| 522 | ATH9K_INT_RX | \ |
| 523 | ATH9K_INT_TX | \ |
| 524 | ATH9K_INT_BMISS | \ |
| 525 | ATH9K_INT_CST | \ |
| 526 | ATH9K_INT_TSFOOR) |
| 527 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 528 | struct ath_softc *sc = dev; |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 529 | struct ath_hw *ah = sc->sc_ah; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 530 | enum ath9k_int status; |
| 531 | bool sched = false; |
| 532 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 533 | /* |
| 534 | * The hardware is not ready/present, don't |
| 535 | * touch anything. Note this can happen early |
| 536 | * on if the IRQ is shared. |
| 537 | */ |
| 538 | if (sc->sc_flags & SC_OP_INVALID) |
| 539 | return IRQ_NONE; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 540 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 541 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 542 | /* shared irq, not for us */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 543 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 544 | if (!ath9k_hw_intrpend(ah)) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 545 | return IRQ_NONE; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 546 | |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 547 | /* |
| 548 | * Figure out the reason(s) for the interrupt. Note |
| 549 | * that the hal returns a pseudo-ISR that may include |
| 550 | * bits we haven't explicitly enabled so we mask the |
| 551 | * value to insure we only process bits we requested. |
| 552 | */ |
| 553 | ath9k_hw_getisr(ah, &status); /* NB: clears ISR too */ |
| 554 | status &= sc->imask; /* discard unasked-for bits */ |
| 555 | |
| 556 | /* |
| 557 | * If there are no status bits set, then this interrupt was not |
| 558 | * for me (should have been caught above). |
| 559 | */ |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 560 | if (!status) |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 561 | return IRQ_NONE; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 562 | |
| 563 | /* Cache the status */ |
| 564 | sc->intrstatus = status; |
| 565 | |
| 566 | if (status & SCHED_INTR) |
| 567 | sched = true; |
| 568 | |
| 569 | /* |
| 570 | * If a FATAL or RXORN interrupt is received, we have to reset the |
| 571 | * chip immediately. |
| 572 | */ |
| 573 | if (status & (ATH9K_INT_FATAL | ATH9K_INT_RXORN)) |
| 574 | goto chip_reset; |
| 575 | |
| 576 | if (status & ATH9K_INT_SWBA) |
| 577 | tasklet_schedule(&sc->bcon_tasklet); |
| 578 | |
| 579 | if (status & ATH9K_INT_TXURN) |
| 580 | ath9k_hw_updatetxtriglevel(ah, true); |
| 581 | |
| 582 | if (status & ATH9K_INT_MIB) { |
| 583 | /* |
| 584 | * Disable interrupts until we service the MIB |
| 585 | * interrupt; otherwise it will continue to |
| 586 | * fire. |
| 587 | */ |
| 588 | ath9k_hw_set_interrupts(ah, 0); |
| 589 | /* |
| 590 | * Let the hal handle the event. We assume |
| 591 | * it will clear whatever condition caused |
| 592 | * the interrupt. |
| 593 | */ |
| 594 | ath9k_hw_procmibevent(ah, &sc->nodestats); |
| 595 | ath9k_hw_set_interrupts(ah, sc->imask); |
| 596 | } |
| 597 | |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 598 | if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
| 599 | if (status & ATH9K_INT_TIM_TIMER) { |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 600 | /* Clear RxAbort bit so that we can |
| 601 | * receive frames */ |
| 602 | ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); |
Vasanthakumar Thiagarajan | 153e080 | 2009-05-15 02:47:16 -0400 | [diff] [blame] | 603 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 604 | sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; |
| 605 | } |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 606 | |
| 607 | chip_reset: |
| 608 | |
Sujith | 817e11d | 2008-12-07 21:42:44 +0530 | [diff] [blame] | 609 | ath_debug_stat_interrupt(sc, status); |
| 610 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 611 | if (sched) { |
| 612 | /* turn off every interrupt except SWBA */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 613 | ath9k_hw_set_interrupts(ah, (sc->imask & ATH9K_INT_SWBA)); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 614 | tasklet_schedule(&sc->intr_tq); |
| 615 | } |
| 616 | |
| 617 | return IRQ_HANDLED; |
Sujith | 063d8be | 2009-03-30 15:28:49 +0530 | [diff] [blame] | 618 | |
| 619 | #undef SCHED_INTR |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 620 | } |
| 621 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 622 | static u32 ath_get_extchanmode(struct ath_softc *sc, |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 623 | struct ieee80211_channel *chan, |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 624 | enum nl80211_channel_type channel_type) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 625 | { |
| 626 | u32 chanmode = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 627 | |
| 628 | switch (chan->band) { |
| 629 | case IEEE80211_BAND_2GHZ: |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 630 | switch(channel_type) { |
| 631 | case NL80211_CHAN_NO_HT: |
| 632 | case NL80211_CHAN_HT20: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 633 | chanmode = CHANNEL_G_HT20; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 634 | break; |
| 635 | case NL80211_CHAN_HT40PLUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 636 | chanmode = CHANNEL_G_HT40PLUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 637 | break; |
| 638 | case NL80211_CHAN_HT40MINUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 639 | chanmode = CHANNEL_G_HT40MINUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 640 | break; |
| 641 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 642 | break; |
| 643 | case IEEE80211_BAND_5GHZ: |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 644 | switch(channel_type) { |
| 645 | case NL80211_CHAN_NO_HT: |
| 646 | case NL80211_CHAN_HT20: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 647 | chanmode = CHANNEL_A_HT20; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 648 | break; |
| 649 | case NL80211_CHAN_HT40PLUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 650 | chanmode = CHANNEL_A_HT40PLUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 651 | break; |
| 652 | case NL80211_CHAN_HT40MINUS: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 653 | chanmode = CHANNEL_A_HT40MINUS; |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 654 | break; |
| 655 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 656 | break; |
| 657 | default: |
| 658 | break; |
| 659 | } |
| 660 | |
| 661 | return chanmode; |
| 662 | } |
| 663 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 664 | 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] | 665 | struct ath9k_keyval *hk, const u8 *addr, |
| 666 | bool authenticator) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 667 | { |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 668 | const u8 *key_rxmic; |
| 669 | const u8 *key_txmic; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 670 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 671 | key_txmic = key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY; |
| 672 | key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 673 | |
| 674 | if (addr == NULL) { |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 675 | /* |
| 676 | * Group key installation - only two key cache entries are used |
| 677 | * regardless of splitmic capability since group key is only |
| 678 | * used either for TX or RX. |
| 679 | */ |
Jouni Malinen | 3f53dd6 | 2009-02-26 11:18:46 +0200 | [diff] [blame] | 680 | if (authenticator) { |
| 681 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); |
| 682 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic)); |
| 683 | } else { |
| 684 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
| 685 | memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic)); |
| 686 | } |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 687 | 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] | 688 | } |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 689 | if (!sc->splitmic) { |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 690 | /* TX and RX keys share the same key cache entry. */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 691 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
| 692 | memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic)); |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 693 | 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] | 694 | } |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 695 | |
| 696 | /* Separate key cache entries for TX and RX */ |
| 697 | |
| 698 | /* TX key goes at first index, RX key at +32. */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 699 | memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic)); |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 700 | if (!ath9k_hw_set_keycache_entry(sc->sc_ah, keyix, hk, NULL)) { |
| 701 | /* TX MIC entry failed. No need to proceed further */ |
Sujith | d8baa93 | 2009-03-30 15:28:25 +0530 | [diff] [blame] | 702 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 703 | "Setting TX MIC Key Failed\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 704 | return 0; |
| 705 | } |
| 706 | |
| 707 | memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic)); |
| 708 | /* XXX delete tx key on failure? */ |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 709 | 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] | 710 | } |
| 711 | |
| 712 | static int ath_reserve_key_cache_slot_tkip(struct ath_softc *sc) |
| 713 | { |
| 714 | int i; |
| 715 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 716 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
| 717 | if (test_bit(i, sc->keymap) || |
| 718 | test_bit(i + 64, sc->keymap)) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 719 | continue; /* At least one part of TKIP key allocated */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 720 | if (sc->splitmic && |
| 721 | (test_bit(i + 32, sc->keymap) || |
| 722 | test_bit(i + 64 + 32, sc->keymap))) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 723 | continue; /* At least one part of TKIP key allocated */ |
| 724 | |
| 725 | /* Found a free slot for a TKIP key */ |
| 726 | return i; |
| 727 | } |
| 728 | return -1; |
| 729 | } |
| 730 | |
| 731 | static int ath_reserve_key_cache_slot(struct ath_softc *sc) |
| 732 | { |
| 733 | int i; |
| 734 | |
| 735 | /* First, try to find slots that would not be available for TKIP. */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 736 | if (sc->splitmic) { |
| 737 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 4; i++) { |
| 738 | if (!test_bit(i, sc->keymap) && |
| 739 | (test_bit(i + 32, sc->keymap) || |
| 740 | test_bit(i + 64, sc->keymap) || |
| 741 | test_bit(i + 64 + 32, sc->keymap))) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 742 | return i; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 743 | if (!test_bit(i + 32, sc->keymap) && |
| 744 | (test_bit(i, sc->keymap) || |
| 745 | test_bit(i + 64, sc->keymap) || |
| 746 | test_bit(i + 64 + 32, sc->keymap))) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 747 | return i + 32; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 748 | if (!test_bit(i + 64, sc->keymap) && |
| 749 | (test_bit(i , sc->keymap) || |
| 750 | test_bit(i + 32, sc->keymap) || |
| 751 | test_bit(i + 64 + 32, sc->keymap))) |
Jouni Malinen | ea61213 | 2008-12-18 14:31:10 +0200 | [diff] [blame] | 752 | return i + 64; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 753 | if (!test_bit(i + 64 + 32, sc->keymap) && |
| 754 | (test_bit(i, sc->keymap) || |
| 755 | test_bit(i + 32, sc->keymap) || |
| 756 | test_bit(i + 64, sc->keymap))) |
Jouni Malinen | ea61213 | 2008-12-18 14:31:10 +0200 | [diff] [blame] | 757 | return i + 64 + 32; |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 758 | } |
| 759 | } else { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 760 | for (i = IEEE80211_WEP_NKID; i < sc->keymax / 2; i++) { |
| 761 | if (!test_bit(i, sc->keymap) && |
| 762 | test_bit(i + 64, sc->keymap)) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 763 | return i; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 764 | if (test_bit(i, sc->keymap) && |
| 765 | !test_bit(i + 64, sc->keymap)) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 766 | return i + 64; |
| 767 | } |
| 768 | } |
| 769 | |
| 770 | /* No partially used TKIP slots, pick any available slot */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 771 | for (i = IEEE80211_WEP_NKID; i < sc->keymax; i++) { |
Jouni Malinen | be2864c | 2008-12-18 14:33:00 +0200 | [diff] [blame] | 772 | /* Do not allow slots that could be needed for TKIP group keys |
| 773 | * to be used. This limitation could be removed if we know that |
| 774 | * TKIP will not be used. */ |
| 775 | if (i >= 64 && i < 64 + IEEE80211_WEP_NKID) |
| 776 | continue; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 777 | if (sc->splitmic) { |
Jouni Malinen | be2864c | 2008-12-18 14:33:00 +0200 | [diff] [blame] | 778 | if (i >= 32 && i < 32 + IEEE80211_WEP_NKID) |
| 779 | continue; |
| 780 | if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID) |
| 781 | continue; |
| 782 | } |
| 783 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 784 | if (!test_bit(i, sc->keymap)) |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 785 | return i; /* Found a free slot for a key */ |
| 786 | } |
| 787 | |
| 788 | /* No free slot found */ |
| 789 | return -1; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 790 | } |
| 791 | |
| 792 | static int ath_key_config(struct ath_softc *sc, |
Jouni Malinen | 3f53dd6 | 2009-02-26 11:18:46 +0200 | [diff] [blame] | 793 | struct ieee80211_vif *vif, |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 794 | struct ieee80211_sta *sta, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 795 | struct ieee80211_key_conf *key) |
| 796 | { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 797 | struct ath9k_keyval hk; |
| 798 | const u8 *mac = NULL; |
| 799 | int ret = 0; |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 800 | int idx; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 801 | |
| 802 | memset(&hk, 0, sizeof(hk)); |
| 803 | |
| 804 | switch (key->alg) { |
| 805 | case ALG_WEP: |
| 806 | hk.kv_type = ATH9K_CIPHER_WEP; |
| 807 | break; |
| 808 | case ALG_TKIP: |
| 809 | hk.kv_type = ATH9K_CIPHER_TKIP; |
| 810 | break; |
| 811 | case ALG_CCMP: |
| 812 | hk.kv_type = ATH9K_CIPHER_AES_CCM; |
| 813 | break; |
| 814 | default: |
Jouni Malinen | ca470b2 | 2009-01-08 13:32:12 +0200 | [diff] [blame] | 815 | return -EOPNOTSUPP; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 816 | } |
| 817 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 818 | hk.kv_len = key->keylen; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 819 | memcpy(hk.kv_val, key->key, key->keylen); |
| 820 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 821 | if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { |
| 822 | /* For now, use the default keys for broadcast keys. This may |
| 823 | * need to change with virtual interfaces. */ |
| 824 | idx = key->keyidx; |
| 825 | } else if (key->keyidx) { |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 826 | if (WARN_ON(!sta)) |
| 827 | return -EOPNOTSUPP; |
| 828 | mac = sta->addr; |
| 829 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 830 | if (vif->type != NL80211_IFTYPE_AP) { |
| 831 | /* Only keyidx 0 should be used with unicast key, but |
| 832 | * allow this for client mode for now. */ |
| 833 | idx = key->keyidx; |
| 834 | } else |
| 835 | return -EIO; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 836 | } else { |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 837 | if (WARN_ON(!sta)) |
| 838 | return -EOPNOTSUPP; |
| 839 | mac = sta->addr; |
| 840 | |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 841 | if (key->alg == ALG_TKIP) |
| 842 | idx = ath_reserve_key_cache_slot_tkip(sc); |
| 843 | else |
| 844 | idx = ath_reserve_key_cache_slot(sc); |
| 845 | if (idx < 0) |
Jouni Malinen | ca470b2 | 2009-01-08 13:32:12 +0200 | [diff] [blame] | 846 | return -ENOSPC; /* no free key cache entries */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 847 | } |
| 848 | |
| 849 | if (key->alg == ALG_TKIP) |
Jouni Malinen | 3f53dd6 | 2009-02-26 11:18:46 +0200 | [diff] [blame] | 850 | ret = ath_setkey_tkip(sc, idx, key->key, &hk, mac, |
| 851 | vif->type == NL80211_IFTYPE_AP); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 852 | else |
Jouni Malinen | d216aaa | 2009-03-03 13:11:53 +0200 | [diff] [blame] | 853 | 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] | 854 | |
| 855 | if (!ret) |
| 856 | return -EIO; |
| 857 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 858 | set_bit(idx, sc->keymap); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 859 | if (key->alg == ALG_TKIP) { |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 860 | set_bit(idx + 64, sc->keymap); |
| 861 | if (sc->splitmic) { |
| 862 | set_bit(idx + 32, sc->keymap); |
| 863 | set_bit(idx + 64 + 32, sc->keymap); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 864 | } |
| 865 | } |
| 866 | |
| 867 | return idx; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 868 | } |
| 869 | |
| 870 | static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key) |
| 871 | { |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 872 | ath9k_hw_keyreset(sc->sc_ah, key->hw_key_idx); |
| 873 | if (key->hw_key_idx < IEEE80211_WEP_NKID) |
| 874 | return; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 875 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 876 | clear_bit(key->hw_key_idx, sc->keymap); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 877 | if (key->alg != ALG_TKIP) |
| 878 | return; |
| 879 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 880 | clear_bit(key->hw_key_idx + 64, sc->keymap); |
| 881 | if (sc->splitmic) { |
| 882 | clear_bit(key->hw_key_idx + 32, sc->keymap); |
| 883 | clear_bit(key->hw_key_idx + 64 + 32, sc->keymap); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 884 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 885 | } |
| 886 | |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 887 | static void setup_ht_cap(struct ath_softc *sc, |
| 888 | struct ieee80211_sta_ht_cap *ht_info) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 889 | { |
Senthil Balasubramanian | 140add2 | 2009-06-24 18:56:42 +0530 | [diff] [blame] | 890 | u8 tx_streams, rx_streams; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 891 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 892 | ht_info->ht_supported = true; |
| 893 | ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 | |
| 894 | IEEE80211_HT_CAP_SM_PS | |
| 895 | IEEE80211_HT_CAP_SGI_40 | |
| 896 | IEEE80211_HT_CAP_DSSSCCK40; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 897 | |
Sujith | 9e98ac6 | 2009-07-23 15:32:34 +0530 | [diff] [blame] | 898 | ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
| 899 | ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8; |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 900 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 901 | /* set up supported mcs set */ |
| 902 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
Senthil Balasubramanian | 140add2 | 2009-06-24 18:56:42 +0530 | [diff] [blame] | 903 | tx_streams = !(sc->tx_chainmask & (sc->tx_chainmask - 1)) ? 1 : 2; |
| 904 | rx_streams = !(sc->rx_chainmask & (sc->rx_chainmask - 1)) ? 1 : 2; |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 905 | |
Senthil Balasubramanian | 140add2 | 2009-06-24 18:56:42 +0530 | [diff] [blame] | 906 | if (tx_streams != rx_streams) { |
| 907 | DPRINTF(sc, ATH_DBG_CONFIG, "TX streams %d, RX streams: %d\n", |
| 908 | tx_streams, rx_streams); |
| 909 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
| 910 | ht_info->mcs.tx_params |= ((tx_streams - 1) << |
| 911 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 912 | } |
| 913 | |
Senthil Balasubramanian | 140add2 | 2009-06-24 18:56:42 +0530 | [diff] [blame] | 914 | ht_info->mcs.rx_mask[0] = 0xff; |
| 915 | if (rx_streams >= 2) |
| 916 | ht_info->mcs.rx_mask[1] = 0xff; |
| 917 | |
| 918 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 919 | } |
| 920 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 921 | static void ath9k_bss_assoc_info(struct ath_softc *sc, |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 922 | struct ieee80211_vif *vif, |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 923 | struct ieee80211_bss_conf *bss_conf) |
| 924 | { |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 925 | |
| 926 | if (bss_conf->assoc) { |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 927 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n", |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 928 | bss_conf->aid, sc->curbssid); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 929 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 930 | /* New association, store aid */ |
Senthil Balasubramanian | 2664f20 | 2009-06-24 18:56:39 +0530 | [diff] [blame] | 931 | sc->curaid = bss_conf->aid; |
| 932 | ath9k_hw_write_associd(sc); |
Jouni Malinen | ccdfeab | 2009-05-20 21:59:08 +0300 | [diff] [blame] | 933 | |
Senthil Balasubramanian | 2664f20 | 2009-06-24 18:56:39 +0530 | [diff] [blame] | 934 | /* |
| 935 | * Request a re-configuration of Beacon related timers |
| 936 | * on the receipt of the first Beacon frame (i.e., |
| 937 | * after time sync with the AP). |
| 938 | */ |
| 939 | sc->sc_flags |= SC_OP_BEACON_SYNC; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 940 | |
| 941 | /* Configure the beacon */ |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 942 | ath_beacon_config(sc, vif); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 943 | |
| 944 | /* Reset rssi stats */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 945 | sc->nodestats.ns_avgbrssi = ATH_RSSI_DUMMY_MARKER; |
| 946 | sc->nodestats.ns_avgrssi = ATH_RSSI_DUMMY_MARKER; |
| 947 | sc->nodestats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER; |
| 948 | sc->nodestats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 949 | |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 950 | ath_start_ani(sc); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 951 | } else { |
Sujith | 1ffb061 | 2009-03-30 15:28:46 +0530 | [diff] [blame] | 952 | DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info DISASSOC\n"); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 953 | sc->curaid = 0; |
Senthil Balasubramanian | f38faa3 | 2009-06-24 18:56:40 +0530 | [diff] [blame] | 954 | /* Stop ANI */ |
| 955 | del_timer_sync(&sc->ani.timer); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 956 | } |
| 957 | } |
| 958 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 959 | /********************************/ |
| 960 | /* LED functions */ |
| 961 | /********************************/ |
| 962 | |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 963 | static void ath_led_blink_work(struct work_struct *work) |
| 964 | { |
| 965 | struct ath_softc *sc = container_of(work, struct ath_softc, |
| 966 | ath_led_blink_work.work); |
| 967 | |
| 968 | if (!(sc->sc_flags & SC_OP_LED_ASSOCIATED)) |
| 969 | return; |
Vasanthakumar Thiagarajan | 85067c0 | 2009-03-14 19:59:41 +0530 | [diff] [blame] | 970 | |
| 971 | if ((sc->led_on_duration == ATH_LED_ON_DURATION_IDLE) || |
| 972 | (sc->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) |
| 973 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); |
| 974 | else |
| 975 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, |
| 976 | (sc->sc_flags & SC_OP_LED_ON) ? 1 : 0); |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 977 | |
| 978 | queue_delayed_work(sc->hw->workqueue, &sc->ath_led_blink_work, |
| 979 | (sc->sc_flags & SC_OP_LED_ON) ? |
| 980 | msecs_to_jiffies(sc->led_off_duration) : |
| 981 | msecs_to_jiffies(sc->led_on_duration)); |
| 982 | |
Vasanthakumar Thiagarajan | 85067c0 | 2009-03-14 19:59:41 +0530 | [diff] [blame] | 983 | sc->led_on_duration = sc->led_on_cnt ? |
| 984 | max((ATH_LED_ON_DURATION_IDLE - sc->led_on_cnt), 25) : |
| 985 | ATH_LED_ON_DURATION_IDLE; |
| 986 | sc->led_off_duration = sc->led_off_cnt ? |
| 987 | max((ATH_LED_OFF_DURATION_IDLE - sc->led_off_cnt), 10) : |
| 988 | ATH_LED_OFF_DURATION_IDLE; |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 989 | sc->led_on_cnt = sc->led_off_cnt = 0; |
| 990 | if (sc->sc_flags & SC_OP_LED_ON) |
| 991 | sc->sc_flags &= ~SC_OP_LED_ON; |
| 992 | else |
| 993 | sc->sc_flags |= SC_OP_LED_ON; |
| 994 | } |
| 995 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 996 | static void ath_led_brightness(struct led_classdev *led_cdev, |
| 997 | enum led_brightness brightness) |
| 998 | { |
| 999 | struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); |
| 1000 | struct ath_softc *sc = led->sc; |
| 1001 | |
| 1002 | switch (brightness) { |
| 1003 | case LED_OFF: |
| 1004 | if (led->led_type == ATH_LED_ASSOC || |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1005 | led->led_type == ATH_LED_RADIO) { |
| 1006 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, |
| 1007 | (led->led_type == ATH_LED_RADIO)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1008 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1009 | if (led->led_type == ATH_LED_RADIO) |
| 1010 | sc->sc_flags &= ~SC_OP_LED_ON; |
| 1011 | } else { |
| 1012 | sc->led_off_cnt++; |
| 1013 | } |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1014 | break; |
| 1015 | case LED_FULL: |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1016 | if (led->led_type == ATH_LED_ASSOC) { |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1017 | sc->sc_flags |= SC_OP_LED_ASSOCIATED; |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1018 | queue_delayed_work(sc->hw->workqueue, |
| 1019 | &sc->ath_led_blink_work, 0); |
| 1020 | } else if (led->led_type == ATH_LED_RADIO) { |
| 1021 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 0); |
| 1022 | sc->sc_flags |= SC_OP_LED_ON; |
| 1023 | } else { |
| 1024 | sc->led_on_cnt++; |
| 1025 | } |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1026 | break; |
| 1027 | default: |
| 1028 | break; |
| 1029 | } |
| 1030 | } |
| 1031 | |
| 1032 | static int ath_register_led(struct ath_softc *sc, struct ath_led *led, |
| 1033 | char *trigger) |
| 1034 | { |
| 1035 | int ret; |
| 1036 | |
| 1037 | led->sc = sc; |
| 1038 | led->led_cdev.name = led->name; |
| 1039 | led->led_cdev.default_trigger = trigger; |
| 1040 | led->led_cdev.brightness_set = ath_led_brightness; |
| 1041 | |
| 1042 | ret = led_classdev_register(wiphy_dev(sc->hw->wiphy), &led->led_cdev); |
| 1043 | if (ret) |
| 1044 | DPRINTF(sc, ATH_DBG_FATAL, |
| 1045 | "Failed to register led:%s", led->name); |
| 1046 | else |
| 1047 | led->registered = 1; |
| 1048 | return ret; |
| 1049 | } |
| 1050 | |
| 1051 | static void ath_unregister_led(struct ath_led *led) |
| 1052 | { |
| 1053 | if (led->registered) { |
| 1054 | led_classdev_unregister(&led->led_cdev); |
| 1055 | led->registered = 0; |
| 1056 | } |
| 1057 | } |
| 1058 | |
| 1059 | static void ath_deinit_leds(struct ath_softc *sc) |
| 1060 | { |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1061 | cancel_delayed_work_sync(&sc->ath_led_blink_work); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1062 | ath_unregister_led(&sc->assoc_led); |
| 1063 | sc->sc_flags &= ~SC_OP_LED_ASSOCIATED; |
| 1064 | ath_unregister_led(&sc->tx_led); |
| 1065 | ath_unregister_led(&sc->rx_led); |
| 1066 | ath_unregister_led(&sc->radio_led); |
| 1067 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); |
| 1068 | } |
| 1069 | |
| 1070 | static void ath_init_leds(struct ath_softc *sc) |
| 1071 | { |
| 1072 | char *trigger; |
| 1073 | int ret; |
| 1074 | |
| 1075 | /* Configure gpio 1 for output */ |
| 1076 | ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN, |
| 1077 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
| 1078 | /* LED off, active low */ |
| 1079 | ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1); |
| 1080 | |
Vasanthakumar Thiagarajan | f2bffa7 | 2009-01-29 17:52:19 +0530 | [diff] [blame] | 1081 | INIT_DELAYED_WORK(&sc->ath_led_blink_work, ath_led_blink_work); |
| 1082 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1083 | trigger = ieee80211_get_radio_led_name(sc->hw); |
| 1084 | snprintf(sc->radio_led.name, sizeof(sc->radio_led.name), |
Danny Kukawka | 0818cb8 | 2009-01-31 15:52:09 +0100 | [diff] [blame] | 1085 | "ath9k-%s::radio", wiphy_name(sc->hw->wiphy)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1086 | ret = ath_register_led(sc, &sc->radio_led, trigger); |
| 1087 | sc->radio_led.led_type = ATH_LED_RADIO; |
| 1088 | if (ret) |
| 1089 | goto fail; |
| 1090 | |
| 1091 | trigger = ieee80211_get_assoc_led_name(sc->hw); |
| 1092 | snprintf(sc->assoc_led.name, sizeof(sc->assoc_led.name), |
Danny Kukawka | 0818cb8 | 2009-01-31 15:52:09 +0100 | [diff] [blame] | 1093 | "ath9k-%s::assoc", wiphy_name(sc->hw->wiphy)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1094 | ret = ath_register_led(sc, &sc->assoc_led, trigger); |
| 1095 | sc->assoc_led.led_type = ATH_LED_ASSOC; |
| 1096 | if (ret) |
| 1097 | goto fail; |
| 1098 | |
| 1099 | trigger = ieee80211_get_tx_led_name(sc->hw); |
| 1100 | snprintf(sc->tx_led.name, sizeof(sc->tx_led.name), |
Danny Kukawka | 0818cb8 | 2009-01-31 15:52:09 +0100 | [diff] [blame] | 1101 | "ath9k-%s::tx", wiphy_name(sc->hw->wiphy)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1102 | ret = ath_register_led(sc, &sc->tx_led, trigger); |
| 1103 | sc->tx_led.led_type = ATH_LED_TX; |
| 1104 | if (ret) |
| 1105 | goto fail; |
| 1106 | |
| 1107 | trigger = ieee80211_get_rx_led_name(sc->hw); |
| 1108 | snprintf(sc->rx_led.name, sizeof(sc->rx_led.name), |
Danny Kukawka | 0818cb8 | 2009-01-31 15:52:09 +0100 | [diff] [blame] | 1109 | "ath9k-%s::rx", wiphy_name(sc->hw->wiphy)); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1110 | ret = ath_register_led(sc, &sc->rx_led, trigger); |
| 1111 | sc->rx_led.led_type = ATH_LED_RX; |
| 1112 | if (ret) |
| 1113 | goto fail; |
| 1114 | |
| 1115 | return; |
| 1116 | |
| 1117 | fail: |
| 1118 | ath_deinit_leds(sc); |
| 1119 | } |
| 1120 | |
Jouni Malinen | 7ec3e51 | 2009-03-03 19:23:37 +0200 | [diff] [blame] | 1121 | void ath_radio_enable(struct ath_softc *sc) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1122 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1123 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1124 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
| 1125 | int r; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1126 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1127 | ath9k_ps_wakeup(sc); |
Sujith | d2f5b3a | 2009-04-13 21:56:25 +0530 | [diff] [blame] | 1128 | ath9k_hw_configpcipowersave(ah, 0); |
| 1129 | |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 1130 | if (!ah->curchan) |
| 1131 | ah->curchan = ath_get_curchannel(sc, sc->hw); |
| 1132 | |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1133 | spin_lock_bh(&sc->sc_resetlock); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1134 | r = ath9k_hw_reset(ah, ah->curchan, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1135 | if (r) { |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1136 | DPRINTF(sc, ATH_DBG_FATAL, |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1137 | "Unable to reset channel %u (%uMhz) ", |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 1138 | "reset status %d\n", |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1139 | channel->center_freq, r); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1140 | } |
| 1141 | spin_unlock_bh(&sc->sc_resetlock); |
| 1142 | |
| 1143 | ath_update_txpow(sc); |
| 1144 | if (ath_startrecv(sc) != 0) { |
| 1145 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1146 | "Unable to restart recv logic\n"); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1147 | return; |
| 1148 | } |
| 1149 | |
| 1150 | if (sc->sc_flags & SC_OP_BEACONS) |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1151 | ath_beacon_config(sc, NULL); /* restart beacons */ |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1152 | |
| 1153 | /* Re-Enable interrupts */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1154 | ath9k_hw_set_interrupts(ah, sc->imask); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1155 | |
| 1156 | /* Enable LED */ |
| 1157 | ath9k_hw_cfg_output(ah, ATH_LED_PIN, |
| 1158 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
| 1159 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0); |
| 1160 | |
| 1161 | ieee80211_wake_queues(sc->hw); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1162 | ath9k_ps_restore(sc); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1163 | } |
| 1164 | |
Jouni Malinen | 7ec3e51 | 2009-03-03 19:23:37 +0200 | [diff] [blame] | 1165 | void ath_radio_disable(struct ath_softc *sc) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1166 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1167 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1168 | struct ieee80211_channel *channel = sc->hw->conf.channel; |
| 1169 | int r; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1170 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1171 | ath9k_ps_wakeup(sc); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1172 | ieee80211_stop_queues(sc->hw); |
| 1173 | |
| 1174 | /* Disable LED */ |
| 1175 | ath9k_hw_set_gpio(ah, ATH_LED_PIN, 1); |
| 1176 | ath9k_hw_cfg_gpio_input(ah, ATH_LED_PIN); |
| 1177 | |
| 1178 | /* Disable interrupts */ |
| 1179 | ath9k_hw_set_interrupts(ah, 0); |
| 1180 | |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 1181 | ath_drain_all_txq(sc, false); /* clear pending tx frames */ |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1182 | ath_stoprecv(sc); /* turn off frame recv */ |
| 1183 | ath_flushrecv(sc); /* flush recv queue */ |
| 1184 | |
Vasanthakumar Thiagarajan | 159cd46 | 2009-06-13 14:50:25 +0530 | [diff] [blame] | 1185 | if (!ah->curchan) |
| 1186 | ah->curchan = ath_get_curchannel(sc, sc->hw); |
| 1187 | |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1188 | spin_lock_bh(&sc->sc_resetlock); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1189 | r = ath9k_hw_reset(ah, ah->curchan, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1190 | if (r) { |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1191 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1192 | "Unable to reset channel %u (%uMhz) " |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 1193 | "reset status %d\n", |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1194 | channel->center_freq, r); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1195 | } |
| 1196 | spin_unlock_bh(&sc->sc_resetlock); |
| 1197 | |
| 1198 | ath9k_hw_phy_disable(ah); |
Sujith | d2f5b3a | 2009-04-13 21:56:25 +0530 | [diff] [blame] | 1199 | ath9k_hw_configpcipowersave(ah, 1); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1200 | ath9k_ps_restore(sc); |
Gabor Juhos | 38ab422 | 2009-06-17 20:53:21 +0200 | [diff] [blame] | 1201 | ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1202 | } |
| 1203 | |
Gabor Juhos | 5077fd3 | 2009-03-06 11:17:55 +0100 | [diff] [blame] | 1204 | /*******************/ |
| 1205 | /* Rfkill */ |
| 1206 | /*******************/ |
| 1207 | |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1208 | static bool ath_is_rfkill_set(struct ath_softc *sc) |
| 1209 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1210 | struct ath_hw *ah = sc->sc_ah; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1211 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1212 | return ath9k_hw_gpio_get(ah, ah->rfkill_gpio) == |
| 1213 | ah->rfkill_polarity; |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1214 | } |
| 1215 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1216 | static void ath9k_rfkill_poll_state(struct ieee80211_hw *hw) |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1217 | { |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1218 | struct ath_wiphy *aphy = hw->priv; |
| 1219 | struct ath_softc *sc = aphy->sc; |
| 1220 | bool blocked = !!ath_is_rfkill_set(sc); |
| 1221 | |
| 1222 | wiphy_rfkill_set_hw_state(hw->wiphy, blocked); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1223 | |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 1224 | if (blocked) |
| 1225 | ath_radio_disable(sc); |
| 1226 | else |
| 1227 | ath_radio_enable(sc); |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 1228 | } |
| 1229 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1230 | static void ath_start_rfkill_poll(struct ath_softc *sc) |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 1231 | { |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1232 | struct ath_hw *ah = sc->sc_ah; |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 1233 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1234 | if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
| 1235 | wiphy_rfkill_start_polling(sc->hw->wiphy); |
Vasanthakumar Thiagarajan | 500c064 | 2008-09-10 18:50:17 +0530 | [diff] [blame] | 1236 | } |
| 1237 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 1238 | void ath_cleanup(struct ath_softc *sc) |
Gabor Juhos | 39c3c2f | 2009-01-14 20:17:05 +0100 | [diff] [blame] | 1239 | { |
| 1240 | ath_detach(sc); |
| 1241 | free_irq(sc->irq, sc); |
| 1242 | ath_bus_cleanup(sc); |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1243 | kfree(sc->sec_wiphy); |
Gabor Juhos | 39c3c2f | 2009-01-14 20:17:05 +0100 | [diff] [blame] | 1244 | ieee80211_free_hw(sc->hw); |
| 1245 | } |
| 1246 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 1247 | void ath_detach(struct ath_softc *sc) |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1248 | { |
| 1249 | struct ieee80211_hw *hw = sc->hw; |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1250 | int i = 0; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1251 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1252 | ath9k_ps_wakeup(sc); |
| 1253 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1254 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1255 | |
Vasanthakumar Thiagarajan | 3fcdfb4 | 2008-11-18 01:19:56 +0530 | [diff] [blame] | 1256 | ath_deinit_leds(sc); |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1257 | cancel_work_sync(&sc->chan_work); |
Jouni Malinen | f98c3bd | 2009-03-03 19:23:39 +0200 | [diff] [blame] | 1258 | cancel_delayed_work_sync(&sc->wiphy_work); |
Senthil Balasubramanian | 164ace3 | 2009-07-14 20:17:09 -0400 | [diff] [blame] | 1259 | cancel_delayed_work_sync(&sc->tx_complete_work); |
Vasanthakumar Thiagarajan | 3fcdfb4 | 2008-11-18 01:19:56 +0530 | [diff] [blame] | 1260 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1261 | for (i = 0; i < sc->num_sec_wiphy; i++) { |
| 1262 | struct ath_wiphy *aphy = sc->sec_wiphy[i]; |
| 1263 | if (aphy == NULL) |
| 1264 | continue; |
| 1265 | sc->sec_wiphy[i] = NULL; |
| 1266 | ieee80211_unregister_hw(aphy->hw); |
| 1267 | ieee80211_free_hw(aphy->hw); |
| 1268 | } |
Vasanthakumar Thiagarajan | 3fcdfb4 | 2008-11-18 01:19:56 +0530 | [diff] [blame] | 1269 | ieee80211_unregister_hw(hw); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1270 | ath_rx_cleanup(sc); |
| 1271 | ath_tx_cleanup(sc); |
| 1272 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1273 | tasklet_kill(&sc->intr_tq); |
| 1274 | tasklet_kill(&sc->bcon_tasklet); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1275 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1276 | if (!(sc->sc_flags & SC_OP_INVALID)) |
| 1277 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1278 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1279 | /* cleanup tx queues */ |
| 1280 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) |
| 1281 | if (ATH_TXQ_SETUP(sc, i)) |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1282 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1283 | |
| 1284 | ath9k_hw_detach(sc->sc_ah); |
Sujith | 826d268 | 2008-11-28 22:20:23 +0530 | [diff] [blame] | 1285 | ath9k_exit_debug(sc); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1286 | } |
| 1287 | |
Bob Copeland | e3bb249 | 2009-03-30 22:30:30 -0400 | [diff] [blame] | 1288 | static int ath9k_reg_notifier(struct wiphy *wiphy, |
| 1289 | struct regulatory_request *request) |
| 1290 | { |
| 1291 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); |
| 1292 | struct ath_wiphy *aphy = hw->priv; |
| 1293 | struct ath_softc *sc = aphy->sc; |
| 1294 | struct ath_regulatory *reg = &sc->sc_ah->regulatory; |
| 1295 | |
| 1296 | return ath_reg_notifier_apply(wiphy, request, reg); |
| 1297 | } |
| 1298 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1299 | static int ath_init(u16 devid, struct ath_softc *sc) |
| 1300 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1301 | struct ath_hw *ah = NULL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1302 | int status; |
| 1303 | int error = 0, i; |
| 1304 | int csz = 0; |
| 1305 | |
| 1306 | /* XXX: hardware will not be ready until ath_open() being called */ |
| 1307 | sc->sc_flags |= SC_OP_INVALID; |
Sujith | 88b126a | 2008-11-28 22:19:02 +0530 | [diff] [blame] | 1308 | |
Sujith | 826d268 | 2008-11-28 22:20:23 +0530 | [diff] [blame] | 1309 | if (ath9k_init_debug(sc) < 0) |
| 1310 | printk(KERN_ERR "Unable to create debugfs files\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1311 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1312 | spin_lock_init(&sc->wiphy_lock); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1313 | spin_lock_init(&sc->sc_resetlock); |
Luis R. Rodriguez | 6158425 | 2009-03-12 18:18:49 -0400 | [diff] [blame] | 1314 | spin_lock_init(&sc->sc_serial_rw); |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 1315 | spin_lock_init(&sc->ani_lock); |
Gabor Juhos | 04717cc | 2009-07-14 20:17:13 -0400 | [diff] [blame] | 1316 | spin_lock_init(&sc->sc_pm_lock); |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 1317 | mutex_init(&sc->mutex); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1318 | tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); |
Sujith | 9fc9ab0 | 2009-03-03 10:16:51 +0530 | [diff] [blame] | 1319 | tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1320 | (unsigned long)sc); |
| 1321 | |
| 1322 | /* |
| 1323 | * Cache line size is used to size and align various |
| 1324 | * structures used to communicate with the hardware. |
| 1325 | */ |
Gabor Juhos | 88d1570 | 2009-01-14 20:17:04 +0100 | [diff] [blame] | 1326 | ath_read_cachesize(sc, &csz); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1327 | /* XXX assert csz is non-zero */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1328 | sc->cachelsz = csz << 2; /* convert to bytes */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1329 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1330 | ah = ath9k_hw_attach(devid, sc, &status); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1331 | if (ah == NULL) { |
| 1332 | DPRINTF(sc, ATH_DBG_FATAL, |
Gabor Juhos | 295834f | 2008-12-29 21:07:42 +0100 | [diff] [blame] | 1333 | "Unable to attach hardware; HAL status %d\n", status); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1334 | error = -ENXIO; |
| 1335 | goto bad; |
| 1336 | } |
| 1337 | sc->sc_ah = ah; |
| 1338 | |
| 1339 | /* Get the hardware key cache size. */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1340 | sc->keymax = ah->caps.keycache_size; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1341 | if (sc->keymax > ATH_KEYMAX) { |
Sujith | d8baa93 | 2009-03-30 15:28:25 +0530 | [diff] [blame] | 1342 | DPRINTF(sc, ATH_DBG_ANY, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1343 | "Warning, using only %u entries in %u key cache\n", |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1344 | ATH_KEYMAX, sc->keymax); |
| 1345 | sc->keymax = ATH_KEYMAX; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1346 | } |
| 1347 | |
| 1348 | /* |
| 1349 | * Reset the key cache since some parts do not |
| 1350 | * reset the contents on initial power up. |
| 1351 | */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1352 | for (i = 0; i < sc->keymax; i++) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1353 | ath9k_hw_keyreset(ah, (u16) i); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1354 | |
Luis R. Rodriguez | 85efc86 | 2009-04-13 21:41:46 -0400 | [diff] [blame] | 1355 | if (error) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1356 | goto bad; |
| 1357 | |
| 1358 | /* default to MONITOR mode */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1359 | sc->sc_ah->opmode = NL80211_IFTYPE_MONITOR; |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 1360 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1361 | /* Setup rate tables */ |
| 1362 | |
| 1363 | ath_rate_attach(sc); |
| 1364 | ath_setup_rates(sc, IEEE80211_BAND_2GHZ); |
| 1365 | ath_setup_rates(sc, IEEE80211_BAND_5GHZ); |
| 1366 | |
| 1367 | /* |
| 1368 | * Allocate hardware transmit queues: one queue for |
| 1369 | * beacon frames and one data queue for each QoS |
| 1370 | * priority. Note that the hal handles reseting |
| 1371 | * these queues at the needed time. |
| 1372 | */ |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1373 | sc->beacon.beaconq = ath_beaconq_setup(ah); |
| 1374 | if (sc->beacon.beaconq == -1) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1375 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1376 | "Unable to setup a beacon xmit queue\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1377 | error = -EIO; |
| 1378 | goto bad2; |
| 1379 | } |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1380 | sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0); |
| 1381 | if (sc->beacon.cabq == NULL) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1382 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1383 | "Unable to setup CAB xmit queue\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1384 | error = -EIO; |
| 1385 | goto bad2; |
| 1386 | } |
| 1387 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1388 | sc->config.cabqReadytime = ATH_CABQ_READY_TIME; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1389 | ath_cabq_update(sc); |
| 1390 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1391 | for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++) |
| 1392 | sc->tx.hwq_map[i] = -1; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1393 | |
| 1394 | /* Setup data queues */ |
| 1395 | /* NB: ensure BK queue is the lowest priority h/w queue */ |
| 1396 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BK)) { |
| 1397 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1398 | "Unable to setup xmit queue for BK traffic\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1399 | error = -EIO; |
| 1400 | goto bad2; |
| 1401 | } |
| 1402 | |
| 1403 | if (!ath_tx_setup(sc, ATH9K_WME_AC_BE)) { |
| 1404 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1405 | "Unable to setup xmit queue for BE traffic\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1406 | error = -EIO; |
| 1407 | goto bad2; |
| 1408 | } |
| 1409 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VI)) { |
| 1410 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1411 | "Unable to setup xmit queue for VI traffic\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1412 | error = -EIO; |
| 1413 | goto bad2; |
| 1414 | } |
| 1415 | if (!ath_tx_setup(sc, ATH9K_WME_AC_VO)) { |
| 1416 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1417 | "Unable to setup xmit queue for VO traffic\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1418 | error = -EIO; |
| 1419 | goto bad2; |
| 1420 | } |
| 1421 | |
| 1422 | /* Initializes the noise floor to a reasonable default value. |
| 1423 | * Later on this will be updated during ANI processing. */ |
| 1424 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1425 | sc->ani.noise_floor = ATH_DEFAULT_NOISE_FLOOR; |
| 1426 | setup_timer(&sc->ani.timer, ath_ani_calibrate, (unsigned long)sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1427 | |
| 1428 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, |
| 1429 | ATH9K_CIPHER_TKIP, NULL)) { |
| 1430 | /* |
| 1431 | * Whether we should enable h/w TKIP MIC. |
| 1432 | * XXX: if we don't support WME TKIP MIC, then we wouldn't |
| 1433 | * report WMM capable, so it's always safe to turn on |
| 1434 | * TKIP MIC in this case. |
| 1435 | */ |
| 1436 | ath9k_hw_setcapability(sc->sc_ah, ATH9K_CAP_TKIP_MIC, |
| 1437 | 0, 1, NULL); |
| 1438 | } |
| 1439 | |
| 1440 | /* |
| 1441 | * Check whether the separate key cache entries |
| 1442 | * are required to handle both tx+rx MIC keys. |
| 1443 | * With split mic keys the number of stations is limited |
| 1444 | * to 27 otherwise 59. |
| 1445 | */ |
| 1446 | if (ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, |
| 1447 | ATH9K_CIPHER_TKIP, NULL) |
| 1448 | && ath9k_hw_getcapability(ah, ATH9K_CAP_CIPHER, |
| 1449 | ATH9K_CIPHER_MIC, NULL) |
| 1450 | && ath9k_hw_getcapability(ah, ATH9K_CAP_TKIP_SPLIT, |
| 1451 | 0, NULL)) |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1452 | sc->splitmic = 1; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1453 | |
| 1454 | /* turn on mcast key search if possible */ |
| 1455 | if (!ath9k_hw_getcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL)) |
| 1456 | (void)ath9k_hw_setcapability(ah, ATH9K_CAP_MCAST_KEYSRCH, 1, |
| 1457 | 1, NULL); |
| 1458 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1459 | sc->config.txpowlimit = ATH_TXPOWER_MAX; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1460 | |
| 1461 | /* 11n Capabilities */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1462 | if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1463 | sc->sc_flags |= SC_OP_TXAGGR; |
| 1464 | sc->sc_flags |= SC_OP_RXAGGR; |
| 1465 | } |
| 1466 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1467 | sc->tx_chainmask = ah->caps.tx_chainmask; |
| 1468 | sc->rx_chainmask = ah->caps.rx_chainmask; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1469 | |
| 1470 | ath9k_hw_setcapability(ah, ATH9K_CAP_DIVERSITY, 1, true, NULL); |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1471 | sc->rx.defant = ath9k_hw_getdefantenna(ah); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1472 | |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 1473 | if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
Sujith | ba52da5 | 2009-02-09 13:27:10 +0530 | [diff] [blame] | 1474 | memcpy(sc->bssidmask, ath_bcast_mac, ETH_ALEN); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1475 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1476 | sc->beacon.slottime = ATH9K_SLOT_TIME_9; /* default to short slot time */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1477 | |
| 1478 | /* initialize beacon slots */ |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1479 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1480 | sc->beacon.bslot[i] = NULL; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1481 | sc->beacon.bslot_aphy[i] = NULL; |
| 1482 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1483 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1484 | /* setup channels and rates */ |
| 1485 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1486 | sc->sbands[IEEE80211_BAND_2GHZ].channels = ath9k_2ghz_chantable; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1487 | sc->sbands[IEEE80211_BAND_2GHZ].bitrates = |
| 1488 | sc->rates[IEEE80211_BAND_2GHZ]; |
| 1489 | sc->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1490 | sc->sbands[IEEE80211_BAND_2GHZ].n_channels = |
| 1491 | ARRAY_SIZE(ath9k_2ghz_chantable); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1492 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1493 | 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] | 1494 | sc->sbands[IEEE80211_BAND_5GHZ].channels = ath9k_5ghz_chantable; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1495 | sc->sbands[IEEE80211_BAND_5GHZ].bitrates = |
| 1496 | sc->rates[IEEE80211_BAND_5GHZ]; |
| 1497 | sc->sbands[IEEE80211_BAND_5GHZ].band = IEEE80211_BAND_5GHZ; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1498 | sc->sbands[IEEE80211_BAND_5GHZ].n_channels = |
| 1499 | ARRAY_SIZE(ath9k_5ghz_chantable); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1500 | } |
| 1501 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1502 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BT_COEX) |
Vasanthakumar Thiagarajan | c97c92d | 2009-01-02 15:35:46 +0530 | [diff] [blame] | 1503 | ath9k_hw_btcoex_enable(sc->sc_ah); |
| 1504 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1505 | return 0; |
| 1506 | bad2: |
| 1507 | /* cleanup tx queues */ |
| 1508 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) |
| 1509 | if (ATH_TXQ_SETUP(sc, i)) |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1510 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1511 | bad: |
| 1512 | if (ah) |
| 1513 | ath9k_hw_detach(ah); |
Vasanthakumar Thiagarajan | 40b130a | 2009-02-16 13:55:07 +0530 | [diff] [blame] | 1514 | ath9k_exit_debug(sc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1515 | |
| 1516 | return error; |
| 1517 | } |
| 1518 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1519 | 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] | 1520 | { |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1521 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
| 1522 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | |
| 1523 | IEEE80211_HW_SIGNAL_DBM | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 1524 | IEEE80211_HW_AMPDU_AGGREGATION | |
| 1525 | IEEE80211_HW_SUPPORTS_PS | |
Sujith | eeee132 | 2009-03-10 10:39:53 +0530 | [diff] [blame] | 1526 | IEEE80211_HW_PS_NULLFUNC_STACK | |
| 1527 | IEEE80211_HW_SPECTRUM_MGMT; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1528 | |
Jouni Malinen | b3bd89c | 2009-02-24 13:42:01 +0200 | [diff] [blame] | 1529 | if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || modparam_nohwcrypt) |
Jouni Malinen | 0ced0e1 | 2009-01-08 13:32:13 +0200 | [diff] [blame] | 1530 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
| 1531 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1532 | hw->wiphy->interface_modes = |
| 1533 | BIT(NL80211_IFTYPE_AP) | |
| 1534 | BIT(NL80211_IFTYPE_STATION) | |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 1535 | BIT(NL80211_IFTYPE_ADHOC) | |
| 1536 | BIT(NL80211_IFTYPE_MESH_POINT); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1537 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1538 | hw->queues = 4; |
Sujith | e63835b | 2008-11-18 09:07:53 +0530 | [diff] [blame] | 1539 | hw->max_rates = 4; |
Sujith | 171387e | 2009-02-17 15:36:25 +0530 | [diff] [blame] | 1540 | hw->channel_change_time = 5000; |
Jouni Malinen | 465ca84 | 2009-03-03 19:23:34 +0200 | [diff] [blame] | 1541 | hw->max_listen_interval = 10; |
Luis R. Rodriguez | dd19018 | 2009-07-14 20:13:56 -0400 | [diff] [blame] | 1542 | /* Hardware supports 10 but we use 4 */ |
| 1543 | hw->max_rate_tries = 4; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1544 | hw->sta_data_size = sizeof(struct ath_node); |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1545 | hw->vif_data_size = sizeof(struct ath_vif); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1546 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1547 | hw->rate_control_algorithm = "ath9k_rate_control"; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1548 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1549 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| 1550 | &sc->sbands[IEEE80211_BAND_2GHZ]; |
| 1551 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) |
| 1552 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
| 1553 | &sc->sbands[IEEE80211_BAND_5GHZ]; |
| 1554 | } |
| 1555 | |
| 1556 | int ath_attach(u16 devid, struct ath_softc *sc) |
| 1557 | { |
| 1558 | struct ieee80211_hw *hw = sc->hw; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1559 | int error = 0, i; |
Bob Copeland | 3a702e4 | 2009-03-30 22:30:29 -0400 | [diff] [blame] | 1560 | struct ath_regulatory *reg; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 1561 | |
| 1562 | DPRINTF(sc, ATH_DBG_CONFIG, "Attach ATH hw\n"); |
| 1563 | |
| 1564 | error = ath_init(devid, sc); |
| 1565 | if (error != 0) |
| 1566 | return error; |
| 1567 | |
| 1568 | /* get mac address from hardware and set in mac80211 */ |
| 1569 | |
| 1570 | SET_IEEE80211_PERM_ADDR(hw, sc->sc_ah->macaddr); |
| 1571 | |
| 1572 | ath_set_hw_capab(sc, hw); |
| 1573 | |
Luis R. Rodriguez | c26c2e5 | 2009-05-19 18:27:11 -0400 | [diff] [blame] | 1574 | error = ath_regd_init(&sc->sc_ah->regulatory, sc->hw->wiphy, |
| 1575 | ath9k_reg_notifier); |
| 1576 | if (error) |
| 1577 | return error; |
| 1578 | |
| 1579 | reg = &sc->sc_ah->regulatory; |
| 1580 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1581 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) { |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 1582 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_2GHZ].ht_cap); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1583 | if (test_bit(ATH9K_MODE_11A, sc->sc_ah->caps.wireless_modes)) |
Sujith | eb2599c | 2009-01-23 11:20:44 +0530 | [diff] [blame] | 1584 | setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 1585 | } |
| 1586 | |
Senthil Balasubramanian | db93e7b | 2008-11-13 18:01:08 +0530 | [diff] [blame] | 1587 | /* initialize tx/rx engine */ |
| 1588 | error = ath_tx_init(sc, ATH_TXBUF); |
| 1589 | if (error != 0) |
Vasanthakumar Thiagarajan | 40b130a | 2009-02-16 13:55:07 +0530 | [diff] [blame] | 1590 | goto error_attach; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1591 | |
Senthil Balasubramanian | db93e7b | 2008-11-13 18:01:08 +0530 | [diff] [blame] | 1592 | error = ath_rx_init(sc, ATH_RXBUF); |
| 1593 | if (error != 0) |
Vasanthakumar Thiagarajan | 40b130a | 2009-02-16 13:55:07 +0530 | [diff] [blame] | 1594 | goto error_attach; |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1595 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1596 | INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work); |
Jouni Malinen | f98c3bd | 2009-03-03 19:23:39 +0200 | [diff] [blame] | 1597 | INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work); |
| 1598 | sc->wiphy_scheduler_int = msecs_to_jiffies(500); |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1599 | |
Senthil Balasubramanian | db93e7b | 2008-11-13 18:01:08 +0530 | [diff] [blame] | 1600 | error = ieee80211_register_hw(hw); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1601 | |
Bob Copeland | 3a702e4 | 2009-03-30 22:30:29 -0400 | [diff] [blame] | 1602 | if (!ath_is_world_regd(reg)) { |
Bob Copeland | c02cf37 | 2009-03-30 22:30:28 -0400 | [diff] [blame] | 1603 | error = regulatory_hint(hw->wiphy, reg->alpha2); |
Luis R. Rodriguez | fe33eb3 | 2009-02-21 00:04:30 -0500 | [diff] [blame] | 1604 | if (error) |
| 1605 | goto error_attach; |
| 1606 | } |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1607 | |
Senthil Balasubramanian | db93e7b | 2008-11-13 18:01:08 +0530 | [diff] [blame] | 1608 | /* Initialize LED control */ |
| 1609 | ath_init_leds(sc); |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1610 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1611 | ath_start_rfkill_poll(sc); |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1612 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1613 | return 0; |
Vasanthakumar Thiagarajan | 40b130a | 2009-02-16 13:55:07 +0530 | [diff] [blame] | 1614 | |
| 1615 | error_attach: |
| 1616 | /* cleanup tx queues */ |
| 1617 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) |
| 1618 | if (ATH_TXQ_SETUP(sc, i)) |
| 1619 | ath_tx_cleanupq(sc, &sc->tx.txq[i]); |
| 1620 | |
| 1621 | ath9k_hw_detach(sc->sc_ah); |
| 1622 | ath9k_exit_debug(sc); |
| 1623 | |
Vasanthakumar Thiagarajan | 8feceb6 | 2008-09-10 18:49:27 +0530 | [diff] [blame] | 1624 | return error; |
| 1625 | } |
| 1626 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1627 | int ath_reset(struct ath_softc *sc, bool retry_tx) |
| 1628 | { |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1629 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 030bb49 | 2008-12-23 15:58:37 -0800 | [diff] [blame] | 1630 | struct ieee80211_hw *hw = sc->hw; |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1631 | int r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1632 | |
| 1633 | ath9k_hw_set_interrupts(ah, 0); |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 1634 | ath_drain_all_txq(sc, retry_tx); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1635 | ath_stoprecv(sc); |
| 1636 | ath_flushrecv(sc); |
| 1637 | |
| 1638 | spin_lock_bh(&sc->sc_resetlock); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1639 | r = ath9k_hw_reset(ah, sc->sc_ah->curchan, false); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1640 | if (r) |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1641 | DPRINTF(sc, ATH_DBG_FATAL, |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 1642 | "Unable to reset hardware; reset status %d\n", r); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1643 | spin_unlock_bh(&sc->sc_resetlock); |
| 1644 | |
| 1645 | if (ath_startrecv(sc) != 0) |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1646 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1647 | |
| 1648 | /* |
| 1649 | * We may be doing a reset in response to a request |
| 1650 | * that changes the channel so update any state that |
| 1651 | * might change as a result. |
| 1652 | */ |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 1653 | ath_cache_conf_rate(sc, &hw->conf); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1654 | |
| 1655 | ath_update_txpow(sc); |
| 1656 | |
| 1657 | if (sc->sc_flags & SC_OP_BEACONS) |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 1658 | ath_beacon_config(sc, NULL); /* restart beacons */ |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1659 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1660 | ath9k_hw_set_interrupts(ah, sc->imask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1661 | |
| 1662 | if (retry_tx) { |
| 1663 | int i; |
| 1664 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { |
| 1665 | if (ATH_TXQ_SETUP(sc, i)) { |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1666 | spin_lock_bh(&sc->tx.txq[i].axq_lock); |
| 1667 | ath_txq_schedule(sc, &sc->tx.txq[i]); |
| 1668 | spin_unlock_bh(&sc->tx.txq[i].axq_lock); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1669 | } |
| 1670 | } |
| 1671 | } |
| 1672 | |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1673 | return r; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1674 | } |
| 1675 | |
| 1676 | /* |
| 1677 | * This function will allocate both the DMA descriptor structure, and the |
| 1678 | * buffers it contains. These are used to contain the descriptors used |
| 1679 | * by the system. |
| 1680 | */ |
| 1681 | int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, |
| 1682 | struct list_head *head, const char *name, |
| 1683 | int nbuf, int ndesc) |
| 1684 | { |
| 1685 | #define DS2PHYS(_dd, _ds) \ |
| 1686 | ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) |
| 1687 | #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) |
| 1688 | #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) |
| 1689 | |
| 1690 | struct ath_desc *ds; |
| 1691 | struct ath_buf *bf; |
| 1692 | int i, bsize, error; |
| 1693 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1694 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA: %u buffers %u desc/buf\n", |
| 1695 | name, nbuf, ndesc); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1696 | |
Senthil Balasubramanian | b03a9db | 2009-03-06 11:24:09 +0530 | [diff] [blame] | 1697 | INIT_LIST_HEAD(head); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1698 | /* ath_desc must be a multiple of DWORDs */ |
| 1699 | if ((sizeof(struct ath_desc) % 4) != 0) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1700 | DPRINTF(sc, ATH_DBG_FATAL, "ath_desc not DWORD aligned\n"); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1701 | ASSERT((sizeof(struct ath_desc) % 4) == 0); |
| 1702 | error = -ENOMEM; |
| 1703 | goto fail; |
| 1704 | } |
| 1705 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1706 | dd->dd_desc_len = sizeof(struct ath_desc) * nbuf * ndesc; |
| 1707 | |
| 1708 | /* |
| 1709 | * Need additional DMA memory because we can't use |
| 1710 | * descriptors that cross the 4K page boundary. Assume |
| 1711 | * one skipped descriptor per 4K page. |
| 1712 | */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1713 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1714 | u32 ndesc_skipped = |
| 1715 | ATH_DESC_4KB_BOUND_NUM_SKIPPED(dd->dd_desc_len); |
| 1716 | u32 dma_len; |
| 1717 | |
| 1718 | while (ndesc_skipped) { |
| 1719 | dma_len = ndesc_skipped * sizeof(struct ath_desc); |
| 1720 | dd->dd_desc_len += dma_len; |
| 1721 | |
| 1722 | ndesc_skipped = ATH_DESC_4KB_BOUND_NUM_SKIPPED(dma_len); |
| 1723 | }; |
| 1724 | } |
| 1725 | |
| 1726 | /* allocate descriptors */ |
Gabor Juhos | 7da3c55 | 2009-01-14 20:17:03 +0100 | [diff] [blame] | 1727 | dd->dd_desc = dma_alloc_coherent(sc->dev, dd->dd_desc_len, |
Senthil Balasubramanian | f0e6ce1 | 2009-03-06 11:24:08 +0530 | [diff] [blame] | 1728 | &dd->dd_desc_paddr, GFP_KERNEL); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1729 | if (dd->dd_desc == NULL) { |
| 1730 | error = -ENOMEM; |
| 1731 | goto fail; |
| 1732 | } |
| 1733 | ds = dd->dd_desc; |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1734 | DPRINTF(sc, ATH_DBG_CONFIG, "%s DMA map: %p (%u) -> %llx (%u)\n", |
Sujith | ae459af | 2009-03-30 15:28:40 +0530 | [diff] [blame] | 1735 | name, ds, (u32) dd->dd_desc_len, |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1736 | ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len); |
| 1737 | |
| 1738 | /* allocate buffers */ |
| 1739 | bsize = sizeof(struct ath_buf) * nbuf; |
Senthil Balasubramanian | f0e6ce1 | 2009-03-06 11:24:08 +0530 | [diff] [blame] | 1740 | bf = kzalloc(bsize, GFP_KERNEL); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1741 | if (bf == NULL) { |
| 1742 | error = -ENOMEM; |
| 1743 | goto fail2; |
| 1744 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1745 | dd->dd_bufptr = bf; |
| 1746 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1747 | for (i = 0; i < nbuf; i++, bf++, ds += ndesc) { |
| 1748 | bf->bf_desc = ds; |
| 1749 | bf->bf_daddr = DS2PHYS(dd, ds); |
| 1750 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1751 | if (!(sc->sc_ah->caps.hw_caps & |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1752 | ATH9K_HW_CAP_4KB_SPLITTRANS)) { |
| 1753 | /* |
| 1754 | * Skip descriptor addresses which can cause 4KB |
| 1755 | * boundary crossing (addr + length) with a 32 dword |
| 1756 | * descriptor fetch. |
| 1757 | */ |
| 1758 | while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) { |
| 1759 | ASSERT((caddr_t) bf->bf_desc < |
| 1760 | ((caddr_t) dd->dd_desc + |
| 1761 | dd->dd_desc_len)); |
| 1762 | |
| 1763 | ds += ndesc; |
| 1764 | bf->bf_desc = ds; |
| 1765 | bf->bf_daddr = DS2PHYS(dd, ds); |
| 1766 | } |
| 1767 | } |
| 1768 | list_add_tail(&bf->list, head); |
| 1769 | } |
| 1770 | return 0; |
| 1771 | fail2: |
Gabor Juhos | 7da3c55 | 2009-01-14 20:17:03 +0100 | [diff] [blame] | 1772 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
| 1773 | dd->dd_desc_paddr); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1774 | fail: |
| 1775 | memset(dd, 0, sizeof(*dd)); |
| 1776 | return error; |
| 1777 | #undef ATH_DESC_4KB_BOUND_CHECK |
| 1778 | #undef ATH_DESC_4KB_BOUND_NUM_SKIPPED |
| 1779 | #undef DS2PHYS |
| 1780 | } |
| 1781 | |
| 1782 | void ath_descdma_cleanup(struct ath_softc *sc, |
| 1783 | struct ath_descdma *dd, |
| 1784 | struct list_head *head) |
| 1785 | { |
Gabor Juhos | 7da3c55 | 2009-01-14 20:17:03 +0100 | [diff] [blame] | 1786 | dma_free_coherent(sc->dev, dd->dd_desc_len, dd->dd_desc, |
| 1787 | dd->dd_desc_paddr); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1788 | |
| 1789 | INIT_LIST_HEAD(head); |
| 1790 | kfree(dd->dd_bufptr); |
| 1791 | memset(dd, 0, sizeof(*dd)); |
| 1792 | } |
| 1793 | |
| 1794 | int ath_get_hal_qnum(u16 queue, struct ath_softc *sc) |
| 1795 | { |
| 1796 | int qnum; |
| 1797 | |
| 1798 | switch (queue) { |
| 1799 | case 0: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1800 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VO]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1801 | break; |
| 1802 | case 1: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1803 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_VI]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1804 | break; |
| 1805 | case 2: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1806 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1807 | break; |
| 1808 | case 3: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1809 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BK]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1810 | break; |
| 1811 | default: |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 1812 | qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE]; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1813 | break; |
| 1814 | } |
| 1815 | |
| 1816 | return qnum; |
| 1817 | } |
| 1818 | |
| 1819 | int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc) |
| 1820 | { |
| 1821 | int qnum; |
| 1822 | |
| 1823 | switch (queue) { |
| 1824 | case ATH9K_WME_AC_VO: |
| 1825 | qnum = 0; |
| 1826 | break; |
| 1827 | case ATH9K_WME_AC_VI: |
| 1828 | qnum = 1; |
| 1829 | break; |
| 1830 | case ATH9K_WME_AC_BE: |
| 1831 | qnum = 2; |
| 1832 | break; |
| 1833 | case ATH9K_WME_AC_BK: |
| 1834 | qnum = 3; |
| 1835 | break; |
| 1836 | default: |
| 1837 | qnum = -1; |
| 1838 | break; |
| 1839 | } |
| 1840 | |
| 1841 | return qnum; |
| 1842 | } |
| 1843 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1844 | /* XXX: Remove me once we don't depend on ath9k_channel for all |
| 1845 | * this redundant data */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 1846 | void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw, |
| 1847 | struct ath9k_channel *ichan) |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1848 | { |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 1849 | struct ieee80211_channel *chan = hw->conf.channel; |
| 1850 | struct ieee80211_conf *conf = &hw->conf; |
| 1851 | |
| 1852 | ichan->channel = chan->center_freq; |
| 1853 | ichan->chan = chan; |
| 1854 | |
| 1855 | if (chan->band == IEEE80211_BAND_2GHZ) { |
| 1856 | ichan->chanmode = CHANNEL_G; |
| 1857 | ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM; |
| 1858 | } else { |
| 1859 | ichan->chanmode = CHANNEL_A; |
| 1860 | ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM; |
| 1861 | } |
| 1862 | |
| 1863 | sc->tx_chan_width = ATH9K_HT_MACMODE_20; |
| 1864 | |
| 1865 | if (conf_is_ht(conf)) { |
| 1866 | if (conf_is_ht40(conf)) |
| 1867 | sc->tx_chan_width = ATH9K_HT_MACMODE_2040; |
| 1868 | |
| 1869 | ichan->chanmode = ath_get_extchanmode(sc, chan, |
| 1870 | conf->channel_type); |
| 1871 | } |
| 1872 | } |
| 1873 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1874 | /**********************/ |
| 1875 | /* mac80211 callbacks */ |
| 1876 | /**********************/ |
| 1877 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1878 | static int ath9k_start(struct ieee80211_hw *hw) |
| 1879 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1880 | struct ath_wiphy *aphy = hw->priv; |
| 1881 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1882 | struct ieee80211_channel *curchan = hw->conf.channel; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1883 | struct ath9k_channel *init_channel; |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1884 | int r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1885 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 1886 | DPRINTF(sc, ATH_DBG_CONFIG, "Starting driver with " |
| 1887 | "initial channel: %d MHz\n", curchan->center_freq); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1888 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1889 | mutex_lock(&sc->mutex); |
| 1890 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 1891 | if (ath9k_wiphy_started(sc)) { |
| 1892 | if (sc->chan_idx == curchan->hw_value) { |
| 1893 | /* |
| 1894 | * Already on the operational channel, the new wiphy |
| 1895 | * can be marked active. |
| 1896 | */ |
| 1897 | aphy->state = ATH_WIPHY_ACTIVE; |
| 1898 | ieee80211_wake_queues(hw); |
| 1899 | } else { |
| 1900 | /* |
| 1901 | * Another wiphy is on another channel, start the new |
| 1902 | * wiphy in paused state. |
| 1903 | */ |
| 1904 | aphy->state = ATH_WIPHY_PAUSED; |
| 1905 | ieee80211_stop_queues(hw); |
| 1906 | } |
| 1907 | mutex_unlock(&sc->mutex); |
| 1908 | return 0; |
| 1909 | } |
| 1910 | aphy->state = ATH_WIPHY_ACTIVE; |
| 1911 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1912 | /* setup initial channel */ |
| 1913 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1914 | sc->chan_idx = curchan->hw_value; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1915 | |
Vasanthakumar Thiagarajan | 82880a7 | 2009-06-13 14:50:24 +0530 | [diff] [blame] | 1916 | init_channel = ath_get_curchannel(sc, hw); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1917 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1918 | /* Reset SERDES registers */ |
| 1919 | ath9k_hw_configpcipowersave(sc->sc_ah, 0); |
| 1920 | |
| 1921 | /* |
| 1922 | * The basic interface to setting the hardware in a good |
| 1923 | * state is ``reset''. On return the hardware is known to |
| 1924 | * be powered up and with interrupts disabled. This must |
| 1925 | * be followed by initialization of the appropriate bits |
| 1926 | * and then setup of the interrupt mask. |
| 1927 | */ |
| 1928 | spin_lock_bh(&sc->sc_resetlock); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1929 | r = ath9k_hw_reset(sc->sc_ah, init_channel, false); |
| 1930 | if (r) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1931 | DPRINTF(sc, ATH_DBG_FATAL, |
Vasanthakumar Thiagarajan | 6b45784 | 2009-05-15 18:59:20 +0530 | [diff] [blame] | 1932 | "Unable to reset hardware; reset status %d " |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1933 | "(freq %u MHz)\n", r, |
| 1934 | curchan->center_freq); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1935 | spin_unlock_bh(&sc->sc_resetlock); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1936 | goto mutex_unlock; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1937 | } |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1938 | spin_unlock_bh(&sc->sc_resetlock); |
| 1939 | |
| 1940 | /* |
| 1941 | * This is needed only to setup initial state |
| 1942 | * but it's best done after a reset. |
| 1943 | */ |
| 1944 | ath_update_txpow(sc); |
| 1945 | |
| 1946 | /* |
| 1947 | * Setup the hardware after reset: |
| 1948 | * The receive engine is set going. |
| 1949 | * Frame transmit is handled entirely |
| 1950 | * in the frame output path; there's nothing to do |
| 1951 | * here except setup the interrupt mask. |
| 1952 | */ |
| 1953 | if (ath_startrecv(sc) != 0) { |
Sujith | 1ffb061 | 2009-03-30 15:28:46 +0530 | [diff] [blame] | 1954 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to start recv logic\n"); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1955 | r = -EIO; |
| 1956 | goto mutex_unlock; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1957 | } |
| 1958 | |
| 1959 | /* Setup our intr mask. */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1960 | sc->imask = ATH9K_INT_RX | ATH9K_INT_TX |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1961 | | ATH9K_INT_RXEOL | ATH9K_INT_RXORN |
| 1962 | | ATH9K_INT_FATAL | ATH9K_INT_GLOBAL; |
| 1963 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1964 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_GTT) |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1965 | sc->imask |= ATH9K_INT_GTT; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1966 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1967 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1968 | sc->imask |= ATH9K_INT_CST; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1969 | |
Luis R. Rodriguez | ce111ba | 2008-12-23 15:58:39 -0800 | [diff] [blame] | 1970 | ath_cache_conf_rate(sc, &hw->conf); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1971 | |
| 1972 | sc->sc_flags &= ~SC_OP_INVALID; |
| 1973 | |
| 1974 | /* Disable BMISS interrupt when we're not associated */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 1975 | sc->imask &= ~(ATH9K_INT_SWBA | ATH9K_INT_BMISS); |
| 1976 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 1977 | |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1978 | ieee80211_wake_queues(hw); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1979 | |
Senthil Balasubramanian | 164ace3 | 2009-07-14 20:17:09 -0400 | [diff] [blame] | 1980 | queue_delayed_work(sc->hw->workqueue, &sc->tx_complete_work, 0); |
| 1981 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 1982 | mutex_unlock: |
| 1983 | mutex_unlock(&sc->mutex); |
| 1984 | |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1985 | return r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1986 | } |
| 1987 | |
| 1988 | static int ath9k_tx(struct ieee80211_hw *hw, |
| 1989 | struct sk_buff *skb) |
| 1990 | { |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 1991 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 1992 | struct ath_wiphy *aphy = hw->priv; |
| 1993 | struct ath_softc *sc = aphy->sc; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 1994 | struct ath_tx_control txctl; |
| 1995 | int hdrlen, padsize; |
| 1996 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 1997 | if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) { |
Jouni Malinen | ee166a0 | 2009-03-03 19:23:36 +0200 | [diff] [blame] | 1998 | printk(KERN_DEBUG "ath9k: %s: TX in unexpected wiphy state " |
| 1999 | "%d\n", wiphy_name(hw->wiphy), aphy->state); |
| 2000 | goto exit; |
| 2001 | } |
| 2002 | |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame^] | 2003 | if (sc->ps_enabled) { |
Jouni Malinen | dc8c458 | 2009-05-19 17:01:42 +0300 | [diff] [blame] | 2004 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| 2005 | /* |
| 2006 | * mac80211 does not set PM field for normal data frames, so we |
| 2007 | * need to update that based on the current PS mode. |
| 2008 | */ |
| 2009 | if (ieee80211_is_data(hdr->frame_control) && |
| 2010 | !ieee80211_is_nullfunc(hdr->frame_control) && |
| 2011 | !ieee80211_has_pm(hdr->frame_control)) { |
| 2012 | DPRINTF(sc, ATH_DBG_PS, "Add PM=1 for a TX frame " |
| 2013 | "while in PS mode\n"); |
| 2014 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
| 2015 | } |
| 2016 | } |
| 2017 | |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 2018 | if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { |
| 2019 | /* |
| 2020 | * We are using PS-Poll and mac80211 can request TX while in |
| 2021 | * power save mode. Need to wake up hardware for the TX to be |
| 2022 | * completed and if needed, also for RX of buffered frames. |
| 2023 | */ |
| 2024 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| 2025 | ath9k_ps_wakeup(sc); |
| 2026 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
| 2027 | if (ieee80211_is_pspoll(hdr->frame_control)) { |
| 2028 | DPRINTF(sc, ATH_DBG_PS, "Sending PS-Poll to pick a " |
| 2029 | "buffered frame\n"); |
| 2030 | sc->sc_flags |= SC_OP_WAIT_FOR_PSPOLL_DATA; |
| 2031 | } else { |
| 2032 | DPRINTF(sc, ATH_DBG_PS, "Wake up to complete TX\n"); |
| 2033 | sc->sc_flags |= SC_OP_WAIT_FOR_TX_ACK; |
| 2034 | } |
| 2035 | /* |
| 2036 | * The actual restore operation will happen only after |
| 2037 | * the sc_flags bit is cleared. We are just dropping |
| 2038 | * the ps_usecount here. |
| 2039 | */ |
| 2040 | ath9k_ps_restore(sc); |
| 2041 | } |
| 2042 | |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 2043 | memset(&txctl, 0, sizeof(struct ath_tx_control)); |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 2044 | |
| 2045 | /* |
| 2046 | * As a temporary workaround, assign seq# here; this will likely need |
| 2047 | * to be cleaned up to work better with Beacon transmission and virtual |
| 2048 | * BSSes. |
| 2049 | */ |
| 2050 | if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { |
| 2051 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| 2052 | if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2053 | sc->tx.seq_no += 0x10; |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 2054 | hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2055 | hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no); |
Jouni Malinen | 147583c | 2008-08-11 14:01:50 +0300 | [diff] [blame] | 2056 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2057 | |
| 2058 | /* Add the padding after the header if this is not already done */ |
| 2059 | hdrlen = ieee80211_get_hdrlen_from_skb(skb); |
| 2060 | if (hdrlen & 3) { |
| 2061 | padsize = hdrlen % 4; |
| 2062 | if (skb_headroom(skb) < padsize) |
| 2063 | return -1; |
| 2064 | skb_push(skb, padsize); |
| 2065 | memmove(skb->data, skb->data + padsize, hdrlen); |
| 2066 | } |
| 2067 | |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 2068 | /* Check if a tx queue is available */ |
| 2069 | |
| 2070 | txctl.txq = ath_test_get_txq(sc, skb); |
| 2071 | if (!txctl.txq) |
| 2072 | goto exit; |
| 2073 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2074 | DPRINTF(sc, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2075 | |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 2076 | if (ath_tx_start(hw, skb, &txctl) != 0) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2077 | DPRINTF(sc, ATH_DBG_XMIT, "TX failed\n"); |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 2078 | goto exit; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2079 | } |
| 2080 | |
| 2081 | return 0; |
Sujith | 528f0c6 | 2008-10-29 10:14:26 +0530 | [diff] [blame] | 2082 | exit: |
| 2083 | dev_kfree_skb_any(skb); |
| 2084 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2085 | } |
| 2086 | |
| 2087 | static void ath9k_stop(struct ieee80211_hw *hw) |
| 2088 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2089 | struct ath_wiphy *aphy = hw->priv; |
| 2090 | struct ath_softc *sc = aphy->sc; |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 2091 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 2092 | aphy->state = ATH_WIPHY_INACTIVE; |
| 2093 | |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 2094 | if (sc->sc_flags & SC_OP_INVALID) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2095 | DPRINTF(sc, ATH_DBG_ANY, "Device not present\n"); |
Sujith | 9c84b79 | 2008-10-29 10:17:13 +0530 | [diff] [blame] | 2096 | return; |
| 2097 | } |
| 2098 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2099 | mutex_lock(&sc->mutex); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2100 | |
Jouni Malinen | 9580a22 | 2009-03-03 19:23:33 +0200 | [diff] [blame] | 2101 | if (ath9k_wiphy_started(sc)) { |
| 2102 | mutex_unlock(&sc->mutex); |
| 2103 | return; /* another wiphy still in use */ |
| 2104 | } |
| 2105 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2106 | /* make sure h/w will not generate any interrupt |
| 2107 | * before setting the invalid flag. */ |
| 2108 | ath9k_hw_set_interrupts(sc->sc_ah, 0); |
| 2109 | |
| 2110 | if (!(sc->sc_flags & SC_OP_INVALID)) { |
Sujith | 043a040 | 2009-01-16 21:38:47 +0530 | [diff] [blame] | 2111 | ath_drain_all_txq(sc, false); |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2112 | ath_stoprecv(sc); |
| 2113 | ath9k_hw_phy_disable(sc->sc_ah); |
| 2114 | } else |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2115 | sc->rx.rxlink = NULL; |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2116 | |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 2117 | wiphy_rfkill_stop_polling(sc->hw->wiphy); |
Johannes Berg | 19d337d | 2009-06-02 13:01:37 +0200 | [diff] [blame] | 2118 | |
Sujith | ff37e33 | 2008-11-24 12:07:55 +0530 | [diff] [blame] | 2119 | /* disable HAL and put h/w to sleep */ |
| 2120 | ath9k_hw_disable(sc->sc_ah); |
| 2121 | ath9k_hw_configpcipowersave(sc->sc_ah, 1); |
| 2122 | |
| 2123 | sc->sc_flags |= SC_OP_INVALID; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2124 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2125 | mutex_unlock(&sc->mutex); |
| 2126 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2127 | DPRINTF(sc, ATH_DBG_CONFIG, "Driver halt\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2128 | } |
| 2129 | |
| 2130 | static int ath9k_add_interface(struct ieee80211_hw *hw, |
| 2131 | struct ieee80211_if_init_conf *conf) |
| 2132 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2133 | struct ath_wiphy *aphy = hw->priv; |
| 2134 | struct ath_softc *sc = aphy->sc; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2135 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 2136 | enum nl80211_iftype ic_opmode = NL80211_IFTYPE_UNSPECIFIED; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2137 | int ret = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2138 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2139 | mutex_lock(&sc->mutex); |
| 2140 | |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 2141 | if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) && |
| 2142 | sc->nvifs > 0) { |
| 2143 | ret = -ENOBUFS; |
| 2144 | goto out; |
| 2145 | } |
| 2146 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2147 | switch (conf->type) { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2148 | case NL80211_IFTYPE_STATION: |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 2149 | ic_opmode = NL80211_IFTYPE_STATION; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2150 | break; |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2151 | case NL80211_IFTYPE_ADHOC: |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 2152 | case NL80211_IFTYPE_AP: |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 2153 | case NL80211_IFTYPE_MESH_POINT: |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2154 | if (sc->nbcnvifs >= ATH_BCBUF) { |
| 2155 | ret = -ENOBUFS; |
| 2156 | goto out; |
| 2157 | } |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 2158 | ic_opmode = conf->type; |
Jouni Malinen | 2ad67de | 2008-08-11 14:01:47 +0300 | [diff] [blame] | 2159 | break; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2160 | default: |
| 2161 | DPRINTF(sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2162 | "Interface type %d not yet supported\n", conf->type); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2163 | ret = -EOPNOTSUPP; |
| 2164 | goto out; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2165 | } |
| 2166 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2167 | 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] | 2168 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2169 | /* Set the VIF opmode */ |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2170 | avp->av_opmode = ic_opmode; |
| 2171 | avp->av_bslot = -1; |
| 2172 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2173 | sc->nvifs++; |
Jouni Malinen | 8ca21f0 | 2009-03-03 19:23:27 +0200 | [diff] [blame] | 2174 | |
| 2175 | if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK) |
| 2176 | ath9k_set_bssid_mask(hw); |
| 2177 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2178 | if (sc->nvifs > 1) |
| 2179 | goto out; /* skip global settings for secondary vif */ |
| 2180 | |
Sujith | b238e90 | 2009-03-03 10:16:56 +0530 | [diff] [blame] | 2181 | if (ic_opmode == NL80211_IFTYPE_AP) { |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2182 | ath9k_hw_set_tsfadjust(sc->sc_ah, 1); |
Sujith | b238e90 | 2009-03-03 10:16:56 +0530 | [diff] [blame] | 2183 | sc->sc_flags |= SC_OP_TSF_RESET; |
| 2184 | } |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2185 | |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2186 | /* Set the device opmode */ |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2187 | sc->sc_ah->opmode = ic_opmode; |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2188 | |
Vivek Natarajan | 4e30ffa | 2009-01-28 20:53:27 +0530 | [diff] [blame] | 2189 | /* |
| 2190 | * Enable MIB interrupts when there are hardware phy counters. |
| 2191 | * Note we only do this (at the moment) for station mode. |
| 2192 | */ |
Sujith | 4af9cf4 | 2009-02-12 10:06:47 +0530 | [diff] [blame] | 2193 | if ((conf->type == NL80211_IFTYPE_STATION) || |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 2194 | (conf->type == NL80211_IFTYPE_ADHOC) || |
| 2195 | (conf->type == NL80211_IFTYPE_MESH_POINT)) { |
Sujith | 4af9cf4 | 2009-02-12 10:06:47 +0530 | [diff] [blame] | 2196 | if (ath9k_hw_phycounters(sc->sc_ah)) |
| 2197 | sc->imask |= ATH9K_INT_MIB; |
| 2198 | sc->imask |= ATH9K_INT_TSFOOR; |
| 2199 | } |
| 2200 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2201 | ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); |
Vivek Natarajan | 4e30ffa | 2009-01-28 20:53:27 +0530 | [diff] [blame] | 2202 | |
Senthil Balasubramanian | f38faa3 | 2009-06-24 18:56:40 +0530 | [diff] [blame] | 2203 | if (conf->type == NL80211_IFTYPE_AP || |
| 2204 | conf->type == NL80211_IFTYPE_ADHOC || |
| 2205 | conf->type == NL80211_IFTYPE_MONITOR) |
Sujith | 415f738 | 2009-04-13 21:56:46 +0530 | [diff] [blame] | 2206 | ath_start_ani(sc); |
Luis R. Rodriguez | 6f25542 | 2008-10-03 15:45:27 -0700 | [diff] [blame] | 2207 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2208 | out: |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2209 | mutex_unlock(&sc->mutex); |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2210 | return ret; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2211 | } |
| 2212 | |
| 2213 | static void ath9k_remove_interface(struct ieee80211_hw *hw, |
| 2214 | struct ieee80211_if_init_conf *conf) |
| 2215 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2216 | struct ath_wiphy *aphy = hw->priv; |
| 2217 | struct ath_softc *sc = aphy->sc; |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2218 | struct ath_vif *avp = (void *)conf->vif->drv_priv; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2219 | int i; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2220 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2221 | DPRINTF(sc, ATH_DBG_CONFIG, "Detach Interface\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2222 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2223 | mutex_lock(&sc->mutex); |
| 2224 | |
Luis R. Rodriguez | 6f25542 | 2008-10-03 15:45:27 -0700 | [diff] [blame] | 2225 | /* Stop ANI */ |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2226 | del_timer_sync(&sc->ani.timer); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2227 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2228 | /* Reclaim beacon resources */ |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 2229 | if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) || |
| 2230 | (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || |
| 2231 | (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) { |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2232 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2233 | ath_beacon_return(sc, avp); |
| 2234 | } |
| 2235 | |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2236 | sc->sc_flags &= ~SC_OP_BEACONS; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2237 | |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2238 | for (i = 0; i < ARRAY_SIZE(sc->beacon.bslot); i++) { |
| 2239 | if (sc->beacon.bslot[i] == conf->vif) { |
| 2240 | printk(KERN_DEBUG "%s: vif had allocated beacon " |
| 2241 | "slot\n", __func__); |
| 2242 | sc->beacon.bslot[i] = NULL; |
Jouni Malinen | c52f33d | 2009-03-03 19:23:29 +0200 | [diff] [blame] | 2243 | sc->beacon.bslot_aphy[i] = NULL; |
Jouni Malinen | 2c3db3d | 2009-03-03 19:23:26 +0200 | [diff] [blame] | 2244 | } |
| 2245 | } |
| 2246 | |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2247 | sc->nvifs--; |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2248 | |
| 2249 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2250 | } |
| 2251 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 2252 | static int ath9k_config(struct ieee80211_hw *hw, u32 changed) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2253 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2254 | struct ath_wiphy *aphy = hw->priv; |
| 2255 | struct ath_softc *sc = aphy->sc; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 2256 | struct ieee80211_conf *conf = &hw->conf; |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 2257 | struct ath_hw *ah = sc->sc_ah; |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 2258 | bool all_wiphys_idle = false, disable_radio = false; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2259 | |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 2260 | mutex_lock(&sc->mutex); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2261 | |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 2262 | /* Leave this as the first check */ |
| 2263 | if (changed & IEEE80211_CONF_CHANGE_IDLE) { |
| 2264 | |
| 2265 | spin_lock_bh(&sc->wiphy_lock); |
| 2266 | all_wiphys_idle = ath9k_all_wiphys_idle(sc); |
| 2267 | spin_unlock_bh(&sc->wiphy_lock); |
| 2268 | |
| 2269 | if (conf->flags & IEEE80211_CONF_IDLE){ |
| 2270 | if (all_wiphys_idle) |
| 2271 | disable_radio = true; |
| 2272 | } |
| 2273 | else if (all_wiphys_idle) { |
| 2274 | ath_radio_enable(sc); |
| 2275 | DPRINTF(sc, ATH_DBG_CONFIG, |
| 2276 | "not-idle: enabling radio\n"); |
| 2277 | } |
| 2278 | } |
| 2279 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2280 | if (changed & IEEE80211_CONF_CHANGE_PS) { |
| 2281 | if (conf->flags & IEEE80211_CONF_PS) { |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 2282 | if (!(ah->caps.hw_caps & |
| 2283 | ATH9K_HW_CAP_AUTOSLEEP)) { |
| 2284 | if ((sc->imask & ATH9K_INT_TIM_TIMER) == 0) { |
| 2285 | sc->imask |= ATH9K_INT_TIM_TIMER; |
| 2286 | ath9k_hw_set_interrupts(sc->sc_ah, |
| 2287 | sc->imask); |
| 2288 | } |
| 2289 | ath9k_hw_setrxabort(sc->sc_ah, 1); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2290 | } |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame^] | 2291 | sc->ps_enabled = true; |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2292 | } else { |
Gabor Juhos | 9614832 | 2009-07-24 17:27:21 +0200 | [diff] [blame^] | 2293 | sc->ps_enabled = false; |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2294 | ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 2295 | if (!(ah->caps.hw_caps & |
| 2296 | ATH9K_HW_CAP_AUTOSLEEP)) { |
| 2297 | ath9k_hw_setrxabort(sc->sc_ah, 0); |
Jouni Malinen | 9a23f9c | 2009-05-19 17:01:38 +0300 | [diff] [blame] | 2298 | sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | |
| 2299 | SC_OP_WAIT_FOR_CAB | |
| 2300 | SC_OP_WAIT_FOR_PSPOLL_DATA | |
| 2301 | SC_OP_WAIT_FOR_TX_ACK); |
Vivek Natarajan | 8782b41 | 2009-03-30 14:17:00 +0530 | [diff] [blame] | 2302 | if (sc->imask & ATH9K_INT_TIM_TIMER) { |
| 2303 | sc->imask &= ~ATH9K_INT_TIM_TIMER; |
| 2304 | ath9k_hw_set_interrupts(sc->sc_ah, |
| 2305 | sc->imask); |
| 2306 | } |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2307 | } |
| 2308 | } |
| 2309 | } |
| 2310 | |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 2311 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
Sujith | 99405f9 | 2008-11-24 12:08:35 +0530 | [diff] [blame] | 2312 | struct ieee80211_channel *curchan = hw->conf.channel; |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 2313 | int pos = curchan->hw_value; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2314 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 2315 | aphy->chan_idx = pos; |
| 2316 | aphy->chan_is_ht = conf_is_ht(conf); |
| 2317 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2318 | if (aphy->state == ATH_WIPHY_SCAN || |
| 2319 | aphy->state == ATH_WIPHY_ACTIVE) |
| 2320 | ath9k_wiphy_pause_all_forced(sc, aphy); |
| 2321 | else { |
| 2322 | /* |
| 2323 | * Do not change operational channel based on a paused |
| 2324 | * wiphy changes. |
| 2325 | */ |
| 2326 | goto skip_chan_change; |
| 2327 | } |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 2328 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2329 | DPRINTF(sc, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
| 2330 | curchan->center_freq); |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 2331 | |
Luis R. Rodriguez | 5f8e077 | 2009-01-22 15:16:48 -0800 | [diff] [blame] | 2332 | /* XXX: remove me eventualy */ |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 2333 | ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 2334 | |
Luis R. Rodriguez | ecf7044 | 2008-12-23 15:58:43 -0800 | [diff] [blame] | 2335 | ath_update_chainmask(sc, conf_is_ht(conf)); |
Sujith | 86060f0 | 2009-01-07 14:25:29 +0530 | [diff] [blame] | 2336 | |
Jouni Malinen | 0e2dedf | 2009-03-03 19:23:32 +0200 | [diff] [blame] | 2337 | if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2338 | DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n"); |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 2339 | mutex_unlock(&sc->mutex); |
Sujith | e11602b | 2008-11-27 09:46:27 +0530 | [diff] [blame] | 2340 | return -EINVAL; |
| 2341 | } |
Sujith | 094d05d | 2008-12-12 11:57:43 +0530 | [diff] [blame] | 2342 | } |
Sujith | 86b89ee | 2008-08-07 10:54:57 +0530 | [diff] [blame] | 2343 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2344 | skip_chan_change: |
Luis R. Rodriguez | 5c020dc | 2008-10-22 13:28:45 -0700 | [diff] [blame] | 2345 | if (changed & IEEE80211_CONF_CHANGE_POWER) |
Sujith | 17d7904 | 2009-02-09 13:27:03 +0530 | [diff] [blame] | 2346 | sc->config.txpowlimit = 2 * conf->power_level; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2347 | |
Luis R. Rodriguez | 6483917 | 2009-07-14 20:22:53 -0400 | [diff] [blame] | 2348 | if (disable_radio) { |
| 2349 | DPRINTF(sc, ATH_DBG_CONFIG, "idle: disabling radio\n"); |
| 2350 | ath_radio_disable(sc); |
| 2351 | } |
| 2352 | |
Sujith | aa33de0 | 2008-12-18 11:40:16 +0530 | [diff] [blame] | 2353 | mutex_unlock(&sc->mutex); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2354 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2355 | return 0; |
| 2356 | } |
| 2357 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2358 | #define SUPPORTED_FILTERS \ |
| 2359 | (FIF_PROMISC_IN_BSS | \ |
| 2360 | FIF_ALLMULTI | \ |
| 2361 | FIF_CONTROL | \ |
| 2362 | FIF_OTHER_BSS | \ |
| 2363 | FIF_BCN_PRBRESP_PROMISC | \ |
| 2364 | FIF_FCSFAIL) |
| 2365 | |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 2366 | /* FIXME: sc->sc_full_reset ? */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2367 | static void ath9k_configure_filter(struct ieee80211_hw *hw, |
| 2368 | unsigned int changed_flags, |
| 2369 | unsigned int *total_flags, |
| 2370 | int mc_count, |
| 2371 | struct dev_mc_list *mclist) |
| 2372 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2373 | struct ath_wiphy *aphy = hw->priv; |
| 2374 | struct ath_softc *sc = aphy->sc; |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 2375 | u32 rfilt; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2376 | |
| 2377 | changed_flags &= SUPPORTED_FILTERS; |
| 2378 | *total_flags &= SUPPORTED_FILTERS; |
| 2379 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2380 | sc->rx.rxfilter = *total_flags; |
Jouni Malinen | aa68aea | 2009-05-19 17:01:41 +0300 | [diff] [blame] | 2381 | ath9k_ps_wakeup(sc); |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 2382 | rfilt = ath_calcrxfilter(sc); |
| 2383 | ath9k_hw_setrxfilter(sc->sc_ah, rfilt); |
Jouni Malinen | aa68aea | 2009-05-19 17:01:41 +0300 | [diff] [blame] | 2384 | ath9k_ps_restore(sc); |
Sujith | 7dcfdcd | 2008-08-11 14:03:13 +0530 | [diff] [blame] | 2385 | |
Sujith | b77f483 | 2008-12-07 21:44:03 +0530 | [diff] [blame] | 2386 | 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] | 2387 | } |
| 2388 | |
| 2389 | static void ath9k_sta_notify(struct ieee80211_hw *hw, |
| 2390 | struct ieee80211_vif *vif, |
| 2391 | enum sta_notify_cmd cmd, |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 2392 | struct ieee80211_sta *sta) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2393 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2394 | struct ath_wiphy *aphy = hw->priv; |
| 2395 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2396 | |
| 2397 | switch (cmd) { |
| 2398 | case STA_NOTIFY_ADD: |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2399 | ath_node_attach(sc, sta); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2400 | break; |
| 2401 | case STA_NOTIFY_REMOVE: |
Sujith | b5aa9bf | 2008-10-29 10:13:31 +0530 | [diff] [blame] | 2402 | ath_node_detach(sc, sta); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2403 | break; |
| 2404 | default: |
| 2405 | break; |
| 2406 | } |
| 2407 | } |
| 2408 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2409 | static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2410 | const struct ieee80211_tx_queue_params *params) |
| 2411 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2412 | struct ath_wiphy *aphy = hw->priv; |
| 2413 | struct ath_softc *sc = aphy->sc; |
Sujith | ea9880f | 2008-08-07 10:53:10 +0530 | [diff] [blame] | 2414 | struct ath9k_tx_queue_info qi; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2415 | int ret = 0, qnum; |
| 2416 | |
| 2417 | if (queue >= WME_NUM_AC) |
| 2418 | return 0; |
| 2419 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2420 | mutex_lock(&sc->mutex); |
| 2421 | |
Sujith | 1ffb061 | 2009-03-30 15:28:46 +0530 | [diff] [blame] | 2422 | memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
| 2423 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2424 | qi.tqi_aifs = params->aifs; |
| 2425 | qi.tqi_cwmin = params->cw_min; |
| 2426 | qi.tqi_cwmax = params->cw_max; |
| 2427 | qi.tqi_burstTime = params->txop; |
| 2428 | qnum = ath_get_hal_qnum(queue, sc); |
| 2429 | |
| 2430 | DPRINTF(sc, ATH_DBG_CONFIG, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2431 | "Configure tx [queue/halq] [%d/%d], " |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2432 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2433 | queue, qnum, params->aifs, params->cw_min, |
| 2434 | params->cw_max, params->txop); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2435 | |
| 2436 | ret = ath_txq_update(sc, qnum, &qi); |
| 2437 | if (ret) |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2438 | DPRINTF(sc, ATH_DBG_FATAL, "TXQ Update failed\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2439 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2440 | mutex_unlock(&sc->mutex); |
| 2441 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2442 | return ret; |
| 2443 | } |
| 2444 | |
| 2445 | static int ath9k_set_key(struct ieee80211_hw *hw, |
| 2446 | enum set_key_cmd cmd, |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 2447 | struct ieee80211_vif *vif, |
| 2448 | struct ieee80211_sta *sta, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2449 | struct ieee80211_key_conf *key) |
| 2450 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2451 | struct ath_wiphy *aphy = hw->priv; |
| 2452 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2453 | int ret = 0; |
| 2454 | |
Jouni Malinen | b3bd89c | 2009-02-24 13:42:01 +0200 | [diff] [blame] | 2455 | if (modparam_nohwcrypt) |
| 2456 | return -ENOSPC; |
| 2457 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2458 | mutex_lock(&sc->mutex); |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2459 | ath9k_ps_wakeup(sc); |
Sujith | d8baa93 | 2009-03-30 15:28:25 +0530 | [diff] [blame] | 2460 | DPRINTF(sc, ATH_DBG_CONFIG, "Set HW Key\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2461 | |
| 2462 | switch (cmd) { |
| 2463 | case SET_KEY: |
Jouni Malinen | 3f53dd6 | 2009-02-26 11:18:46 +0200 | [diff] [blame] | 2464 | ret = ath_key_config(sc, vif, sta, key); |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 2465 | if (ret >= 0) { |
| 2466 | key->hw_key_idx = ret; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2467 | /* push IV and Michael MIC generation to stack */ |
| 2468 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
Senthil Balasubramanian | 1b96175 | 2008-09-01 19:45:21 +0530 | [diff] [blame] | 2469 | if (key->alg == ALG_TKIP) |
| 2470 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
Jouni Malinen | 0ced0e1 | 2009-01-08 13:32:13 +0200 | [diff] [blame] | 2471 | if (sc->sc_ah->sw_mgmt_crypto && key->alg == ALG_CCMP) |
| 2472 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; |
Jouni Malinen | 6ace289 | 2008-12-17 13:32:17 +0200 | [diff] [blame] | 2473 | ret = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2474 | } |
| 2475 | break; |
| 2476 | case DISABLE_KEY: |
| 2477 | ath_key_delete(sc, key); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2478 | break; |
| 2479 | default: |
| 2480 | ret = -EINVAL; |
| 2481 | } |
| 2482 | |
Vivek Natarajan | 3cbb5dd | 2009-01-20 11:17:08 +0530 | [diff] [blame] | 2483 | ath9k_ps_restore(sc); |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2484 | mutex_unlock(&sc->mutex); |
| 2485 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2486 | return ret; |
| 2487 | } |
| 2488 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2489 | static void ath9k_bss_info_changed(struct ieee80211_hw *hw, |
| 2490 | struct ieee80211_vif *vif, |
| 2491 | struct ieee80211_bss_conf *bss_conf, |
| 2492 | u32 changed) |
| 2493 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2494 | struct ath_wiphy *aphy = hw->priv; |
| 2495 | struct ath_softc *sc = aphy->sc; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2496 | struct ath_hw *ah = sc->sc_ah; |
| 2497 | struct ath_vif *avp = (void *)vif->drv_priv; |
| 2498 | u32 rfilt = 0; |
| 2499 | int error, i; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2500 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2501 | mutex_lock(&sc->mutex); |
| 2502 | |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2503 | /* |
| 2504 | * TODO: Need to decide which hw opmode to use for |
| 2505 | * multi-interface cases |
| 2506 | * XXX: This belongs into add_interface! |
| 2507 | */ |
| 2508 | if (vif->type == NL80211_IFTYPE_AP && |
| 2509 | ah->opmode != NL80211_IFTYPE_AP) { |
| 2510 | ah->opmode = NL80211_IFTYPE_STATION; |
| 2511 | ath9k_hw_setopmode(ah); |
| 2512 | memcpy(sc->curbssid, sc->sc_ah->macaddr, ETH_ALEN); |
| 2513 | sc->curaid = 0; |
| 2514 | ath9k_hw_write_associd(sc); |
| 2515 | /* Request full reset to get hw opmode changed properly */ |
| 2516 | sc->sc_flags |= SC_OP_FULL_RESET; |
| 2517 | } |
| 2518 | |
| 2519 | if ((changed & BSS_CHANGED_BSSID) && |
| 2520 | !is_zero_ether_addr(bss_conf->bssid)) { |
| 2521 | switch (vif->type) { |
| 2522 | case NL80211_IFTYPE_STATION: |
| 2523 | case NL80211_IFTYPE_ADHOC: |
| 2524 | case NL80211_IFTYPE_MESH_POINT: |
| 2525 | /* Set BSSID */ |
| 2526 | memcpy(sc->curbssid, bss_conf->bssid, ETH_ALEN); |
| 2527 | memcpy(avp->bssid, bss_conf->bssid, ETH_ALEN); |
| 2528 | sc->curaid = 0; |
| 2529 | ath9k_hw_write_associd(sc); |
| 2530 | |
| 2531 | /* Set aggregation protection mode parameters */ |
| 2532 | sc->config.ath_aggr_prot = 0; |
| 2533 | |
| 2534 | DPRINTF(sc, ATH_DBG_CONFIG, |
| 2535 | "RX filter 0x%x bssid %pM aid 0x%x\n", |
| 2536 | rfilt, sc->curbssid, sc->curaid); |
| 2537 | |
| 2538 | /* need to reconfigure the beacon */ |
| 2539 | sc->sc_flags &= ~SC_OP_BEACONS ; |
| 2540 | |
| 2541 | break; |
| 2542 | default: |
| 2543 | break; |
| 2544 | } |
| 2545 | } |
| 2546 | |
| 2547 | if ((vif->type == NL80211_IFTYPE_ADHOC) || |
| 2548 | (vif->type == NL80211_IFTYPE_AP) || |
| 2549 | (vif->type == NL80211_IFTYPE_MESH_POINT)) { |
| 2550 | if ((changed & BSS_CHANGED_BEACON) || |
| 2551 | (changed & BSS_CHANGED_BEACON_ENABLED && |
| 2552 | bss_conf->enable_beacon)) { |
| 2553 | /* |
| 2554 | * Allocate and setup the beacon frame. |
| 2555 | * |
| 2556 | * Stop any previous beacon DMA. This may be |
| 2557 | * necessary, for example, when an ibss merge |
| 2558 | * causes reconfiguration; we may be called |
| 2559 | * with beacon transmission active. |
| 2560 | */ |
| 2561 | ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq); |
| 2562 | |
| 2563 | error = ath_beacon_alloc(aphy, vif); |
| 2564 | if (!error) |
| 2565 | ath_beacon_config(sc, vif); |
| 2566 | } |
| 2567 | } |
| 2568 | |
| 2569 | /* Check for WLAN_CAPABILITY_PRIVACY ? */ |
| 2570 | if ((avp->av_opmode != NL80211_IFTYPE_STATION)) { |
| 2571 | for (i = 0; i < IEEE80211_WEP_NKID; i++) |
| 2572 | if (ath9k_hw_keyisvalid(sc->sc_ah, (u16)i)) |
| 2573 | ath9k_hw_keysetmac(sc->sc_ah, |
| 2574 | (u16)i, |
| 2575 | sc->curbssid); |
| 2576 | } |
| 2577 | |
| 2578 | /* Only legacy IBSS for now */ |
| 2579 | if (vif->type == NL80211_IFTYPE_ADHOC) |
| 2580 | ath_update_chainmask(sc, 0); |
| 2581 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2582 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2583 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2584 | bss_conf->use_short_preamble); |
| 2585 | if (bss_conf->use_short_preamble) |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2586 | sc->sc_flags |= SC_OP_PREAMBLE_SHORT; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2587 | else |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2588 | sc->sc_flags &= ~SC_OP_PREAMBLE_SHORT; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2589 | } |
| 2590 | |
| 2591 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2592 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2593 | bss_conf->use_cts_prot); |
| 2594 | if (bss_conf->use_cts_prot && |
| 2595 | hw->conf.channel->band != IEEE80211_BAND_5GHZ) |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2596 | sc->sc_flags |= SC_OP_PROTECT_ENABLE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2597 | else |
Sujith | 672840a | 2008-08-11 14:05:08 +0530 | [diff] [blame] | 2598 | sc->sc_flags &= ~SC_OP_PROTECT_ENABLE; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2599 | } |
| 2600 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2601 | if (changed & BSS_CHANGED_ASSOC) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2602 | DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2603 | bss_conf->assoc); |
Sujith | 5640b08 | 2008-10-29 10:16:06 +0530 | [diff] [blame] | 2604 | ath9k_bss_assoc_info(sc, vif, bss_conf); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2605 | } |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2606 | |
Johannes Berg | 57c4d7b | 2009-04-23 16:10:04 +0200 | [diff] [blame] | 2607 | /* |
| 2608 | * The HW TSF has to be reset when the beacon interval changes. |
| 2609 | * We set the flag here, and ath_beacon_config_ap() would take this |
| 2610 | * into account when it gets called through the subsequent |
| 2611 | * config_interface() call - with IFCC_BEACON in the changed field. |
| 2612 | */ |
| 2613 | |
| 2614 | if (changed & BSS_CHANGED_BEACON_INT) { |
| 2615 | sc->sc_flags |= SC_OP_TSF_RESET; |
| 2616 | sc->beacon_interval = bss_conf->beacon_int; |
| 2617 | } |
| 2618 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2619 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2620 | } |
| 2621 | |
| 2622 | static u64 ath9k_get_tsf(struct ieee80211_hw *hw) |
| 2623 | { |
| 2624 | u64 tsf; |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2625 | struct ath_wiphy *aphy = hw->priv; |
| 2626 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2627 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2628 | mutex_lock(&sc->mutex); |
| 2629 | tsf = ath9k_hw_gettsf64(sc->sc_ah); |
| 2630 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2631 | |
| 2632 | return tsf; |
| 2633 | } |
| 2634 | |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2635 | static void ath9k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
| 2636 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2637 | struct ath_wiphy *aphy = hw->priv; |
| 2638 | struct ath_softc *sc = aphy->sc; |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2639 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2640 | mutex_lock(&sc->mutex); |
| 2641 | ath9k_hw_settsf64(sc->sc_ah, tsf); |
| 2642 | mutex_unlock(&sc->mutex); |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2643 | } |
| 2644 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2645 | static void ath9k_reset_tsf(struct ieee80211_hw *hw) |
| 2646 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2647 | struct ath_wiphy *aphy = hw->priv; |
| 2648 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2649 | |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2650 | mutex_lock(&sc->mutex); |
| 2651 | ath9k_hw_reset_tsf(sc->sc_ah); |
| 2652 | mutex_unlock(&sc->mutex); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2653 | } |
| 2654 | |
| 2655 | static int ath9k_ampdu_action(struct ieee80211_hw *hw, |
Sujith | 141b38b | 2009-02-04 08:10:07 +0530 | [diff] [blame] | 2656 | enum ieee80211_ampdu_mlme_action action, |
| 2657 | struct ieee80211_sta *sta, |
| 2658 | u16 tid, u16 *ssn) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2659 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2660 | struct ath_wiphy *aphy = hw->priv; |
| 2661 | struct ath_softc *sc = aphy->sc; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2662 | int ret = 0; |
| 2663 | |
| 2664 | switch (action) { |
| 2665 | case IEEE80211_AMPDU_RX_START: |
Sujith | dca3edb | 2008-10-29 10:19:01 +0530 | [diff] [blame] | 2666 | if (!(sc->sc_flags & SC_OP_RXAGGR)) |
| 2667 | ret = -ENOTSUPP; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2668 | break; |
| 2669 | case IEEE80211_AMPDU_RX_STOP: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2670 | break; |
| 2671 | case IEEE80211_AMPDU_TX_START: |
Sujith | f83da96 | 2009-07-23 15:32:37 +0530 | [diff] [blame] | 2672 | ath_tx_aggr_start(sc, sta, tid, ssn); |
| 2673 | ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2674 | break; |
| 2675 | case IEEE80211_AMPDU_TX_STOP: |
Sujith | f83da96 | 2009-07-23 15:32:37 +0530 | [diff] [blame] | 2676 | ath_tx_aggr_stop(sc, sta, tid); |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 2677 | ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2678 | break; |
Johannes Berg | b172023 | 2009-03-23 17:28:39 +0100 | [diff] [blame] | 2679 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
Sujith | 8469cde | 2008-10-29 10:19:28 +0530 | [diff] [blame] | 2680 | ath_tx_aggr_resume(sc, sta, tid); |
| 2681 | break; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2682 | default: |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2683 | DPRINTF(sc, ATH_DBG_FATAL, "Unknown AMPDU action\n"); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2684 | } |
| 2685 | |
| 2686 | return ret; |
| 2687 | } |
| 2688 | |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2689 | static void ath9k_sw_scan_start(struct ieee80211_hw *hw) |
| 2690 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2691 | struct ath_wiphy *aphy = hw->priv; |
| 2692 | struct ath_softc *sc = aphy->sc; |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2693 | |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2694 | if (ath9k_wiphy_scanning(sc)) { |
| 2695 | printk(KERN_DEBUG "ath9k: Two wiphys trying to scan at the " |
| 2696 | "same time\n"); |
| 2697 | /* |
| 2698 | * Do not allow the concurrent scanning state for now. This |
| 2699 | * could be improved with scanning control moved into ath9k. |
| 2700 | */ |
| 2701 | return; |
| 2702 | } |
| 2703 | |
| 2704 | aphy->state = ATH_WIPHY_SCAN; |
| 2705 | ath9k_wiphy_pause_all_forced(sc, aphy); |
| 2706 | |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 2707 | spin_lock_bh(&sc->ani_lock); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2708 | sc->sc_flags |= SC_OP_SCANNING; |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 2709 | spin_unlock_bh(&sc->ani_lock); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2710 | } |
| 2711 | |
| 2712 | static void ath9k_sw_scan_complete(struct ieee80211_hw *hw) |
| 2713 | { |
Jouni Malinen | bce048d | 2009-03-03 19:23:28 +0200 | [diff] [blame] | 2714 | struct ath_wiphy *aphy = hw->priv; |
| 2715 | struct ath_softc *sc = aphy->sc; |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2716 | |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 2717 | spin_lock_bh(&sc->ani_lock); |
Jouni Malinen | 8089cc4 | 2009-03-03 19:23:38 +0200 | [diff] [blame] | 2718 | aphy->state = ATH_WIPHY_ACTIVE; |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2719 | sc->sc_flags &= ~SC_OP_SCANNING; |
Sujith | 9c07a77 | 2009-04-13 21:56:36 +0530 | [diff] [blame] | 2720 | sc->sc_flags |= SC_OP_FULL_RESET; |
Senthil Balasubramanian | e5f0921 | 2009-06-24 18:56:41 +0530 | [diff] [blame] | 2721 | spin_unlock_bh(&sc->ani_lock); |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2722 | } |
| 2723 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2724 | struct ieee80211_ops ath9k_ops = { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2725 | .tx = ath9k_tx, |
| 2726 | .start = ath9k_start, |
| 2727 | .stop = ath9k_stop, |
| 2728 | .add_interface = ath9k_add_interface, |
| 2729 | .remove_interface = ath9k_remove_interface, |
| 2730 | .config = ath9k_config, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2731 | .configure_filter = ath9k_configure_filter, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2732 | .sta_notify = ath9k_sta_notify, |
| 2733 | .conf_tx = ath9k_conf_tx, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2734 | .bss_info_changed = ath9k_bss_info_changed, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2735 | .set_key = ath9k_set_key, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2736 | .get_tsf = ath9k_get_tsf, |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2737 | .set_tsf = ath9k_set_tsf, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2738 | .reset_tsf = ath9k_reset_tsf, |
Johannes Berg | 4233df6 | 2008-10-13 13:35:05 +0200 | [diff] [blame] | 2739 | .ampdu_action = ath9k_ampdu_action, |
Sujith | 0c98de6 | 2009-03-03 10:16:45 +0530 | [diff] [blame] | 2740 | .sw_scan_start = ath9k_sw_scan_start, |
| 2741 | .sw_scan_complete = ath9k_sw_scan_complete, |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 2742 | .rfkill_poll = ath9k_rfkill_poll_state, |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2743 | }; |
| 2744 | |
Benoit PAPILLAULT | 392dff8 | 2008-11-06 22:26:49 +0100 | [diff] [blame] | 2745 | static struct { |
| 2746 | u32 version; |
| 2747 | const char * name; |
| 2748 | } ath_mac_bb_names[] = { |
| 2749 | { AR_SREV_VERSION_5416_PCI, "5416" }, |
| 2750 | { AR_SREV_VERSION_5416_PCIE, "5418" }, |
| 2751 | { AR_SREV_VERSION_9100, "9100" }, |
| 2752 | { AR_SREV_VERSION_9160, "9160" }, |
| 2753 | { AR_SREV_VERSION_9280, "9280" }, |
Vivek Natarajan | ac88b6e | 2009-07-23 10:59:57 +0530 | [diff] [blame] | 2754 | { AR_SREV_VERSION_9285, "9285" }, |
| 2755 | { AR_SREV_VERSION_9287, "9287" } |
Benoit PAPILLAULT | 392dff8 | 2008-11-06 22:26:49 +0100 | [diff] [blame] | 2756 | }; |
| 2757 | |
| 2758 | static struct { |
| 2759 | u16 version; |
| 2760 | const char * name; |
| 2761 | } ath_rf_names[] = { |
| 2762 | { 0, "5133" }, |
| 2763 | { AR_RAD5133_SREV_MAJOR, "5133" }, |
| 2764 | { AR_RAD5122_SREV_MAJOR, "5122" }, |
| 2765 | { AR_RAD2133_SREV_MAJOR, "2133" }, |
| 2766 | { AR_RAD2122_SREV_MAJOR, "2122" } |
| 2767 | }; |
| 2768 | |
| 2769 | /* |
| 2770 | * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. |
| 2771 | */ |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2772 | const char * |
Benoit PAPILLAULT | 392dff8 | 2008-11-06 22:26:49 +0100 | [diff] [blame] | 2773 | ath_mac_bb_name(u32 mac_bb_version) |
| 2774 | { |
| 2775 | int i; |
| 2776 | |
| 2777 | for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) { |
| 2778 | if (ath_mac_bb_names[i].version == mac_bb_version) { |
| 2779 | return ath_mac_bb_names[i].name; |
| 2780 | } |
| 2781 | } |
| 2782 | |
| 2783 | return "????"; |
| 2784 | } |
| 2785 | |
| 2786 | /* |
| 2787 | * Return the RF name. "????" is returned if the RF is unknown. |
| 2788 | */ |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2789 | const char * |
Benoit PAPILLAULT | 392dff8 | 2008-11-06 22:26:49 +0100 | [diff] [blame] | 2790 | ath_rf_name(u16 rf_version) |
| 2791 | { |
| 2792 | int i; |
| 2793 | |
| 2794 | for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) { |
| 2795 | if (ath_rf_names[i].version == rf_version) { |
| 2796 | return ath_rf_names[i].name; |
| 2797 | } |
| 2798 | } |
| 2799 | |
| 2800 | return "????"; |
| 2801 | } |
| 2802 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2803 | static int __init ath9k_init(void) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2804 | { |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2805 | int error; |
| 2806 | |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2807 | /* Register rate control algorithm */ |
| 2808 | error = ath_rate_control_register(); |
| 2809 | if (error != 0) { |
| 2810 | printk(KERN_ERR |
Luis R. Rodriguez | b51bb3c | 2009-01-26 07:30:03 -0800 | [diff] [blame] | 2811 | "ath9k: Unable to register rate control " |
| 2812 | "algorithm: %d\n", |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2813 | error); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2814 | goto err_out; |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2815 | } |
| 2816 | |
Gabor Juhos | 19d8bc2 | 2009-03-05 16:55:18 +0100 | [diff] [blame] | 2817 | error = ath9k_debug_create_root(); |
| 2818 | if (error) { |
| 2819 | printk(KERN_ERR |
| 2820 | "ath9k: Unable to create debugfs root: %d\n", |
| 2821 | error); |
| 2822 | goto err_rate_unregister; |
| 2823 | } |
| 2824 | |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2825 | error = ath_pci_init(); |
| 2826 | if (error < 0) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2827 | printk(KERN_ERR |
Luis R. Rodriguez | b51bb3c | 2009-01-26 07:30:03 -0800 | [diff] [blame] | 2828 | "ath9k: No PCI devices found, driver not installed.\n"); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2829 | error = -ENODEV; |
Gabor Juhos | 19d8bc2 | 2009-03-05 16:55:18 +0100 | [diff] [blame] | 2830 | goto err_remove_root; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2831 | } |
| 2832 | |
Gabor Juhos | 09329d3 | 2009-01-14 20:17:07 +0100 | [diff] [blame] | 2833 | error = ath_ahb_init(); |
| 2834 | if (error < 0) { |
| 2835 | error = -ENODEV; |
| 2836 | goto err_pci_exit; |
| 2837 | } |
| 2838 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2839 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2840 | |
Gabor Juhos | 09329d3 | 2009-01-14 20:17:07 +0100 | [diff] [blame] | 2841 | err_pci_exit: |
| 2842 | ath_pci_exit(); |
| 2843 | |
Gabor Juhos | 19d8bc2 | 2009-03-05 16:55:18 +0100 | [diff] [blame] | 2844 | err_remove_root: |
| 2845 | ath9k_debug_remove_root(); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2846 | err_rate_unregister: |
Vasanthakumar Thiagarajan | ca8a856 | 2008-12-16 12:37:38 +0530 | [diff] [blame] | 2847 | ath_rate_control_unregister(); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2848 | err_out: |
| 2849 | return error; |
| 2850 | } |
| 2851 | module_init(ath9k_init); |
| 2852 | |
| 2853 | static void __exit ath9k_exit(void) |
| 2854 | { |
Gabor Juhos | 09329d3 | 2009-01-14 20:17:07 +0100 | [diff] [blame] | 2855 | ath_ahb_exit(); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2856 | ath_pci_exit(); |
Gabor Juhos | 19d8bc2 | 2009-03-05 16:55:18 +0100 | [diff] [blame] | 2857 | ath9k_debug_remove_root(); |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2858 | ath_rate_control_unregister(); |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 2859 | printk(KERN_INFO "%s: Driver unloaded\n", dev_info); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2860 | } |
Gabor Juhos | 6baff7f | 2009-01-14 20:17:06 +0100 | [diff] [blame] | 2861 | module_exit(ath9k_exit); |