Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2008 Atheros Communications Inc. |
| 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 | |
Sujith | 394cf0a | 2009-02-09 13:26:54 +0530 | [diff] [blame] | 17 | #include "ath9k.h" |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 18 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 19 | static void ath9k_hw_set_txq_interrupts(struct ath_hw *ah, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 20 | struct ath9k_tx_queue_info *qi) |
| 21 | { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 22 | DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 23 | "tx ok 0x%x err 0x%x desc 0x%x eol 0x%x urn 0x%x\n", |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 24 | ah->txok_interrupt_mask, ah->txerr_interrupt_mask, |
| 25 | ah->txdesc_interrupt_mask, ah->txeol_interrupt_mask, |
| 26 | ah->txurn_interrupt_mask); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 27 | |
| 28 | REG_WRITE(ah, AR_IMR_S0, |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 29 | SM(ah->txok_interrupt_mask, AR_IMR_S0_QCU_TXOK) |
| 30 | | SM(ah->txdesc_interrupt_mask, AR_IMR_S0_QCU_TXDESC)); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 31 | REG_WRITE(ah, AR_IMR_S1, |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 32 | SM(ah->txerr_interrupt_mask, AR_IMR_S1_QCU_TXERR) |
| 33 | | SM(ah->txeol_interrupt_mask, AR_IMR_S1_QCU_TXEOL)); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 34 | REG_RMW_FIELD(ah, AR_IMR_S2, |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 35 | AR_IMR_S2_QCU_TXURN, ah->txurn_interrupt_mask); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 36 | } |
| 37 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 38 | u32 ath9k_hw_gettxbuf(struct ath_hw *ah, u32 q) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 39 | { |
| 40 | return REG_READ(ah, AR_QTXDP(q)); |
| 41 | } |
| 42 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 43 | bool ath9k_hw_puttxbuf(struct ath_hw *ah, u32 q, u32 txdp) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 44 | { |
| 45 | REG_WRITE(ah, AR_QTXDP(q), txdp); |
| 46 | |
| 47 | return true; |
| 48 | } |
| 49 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 50 | bool ath9k_hw_txstart(struct ath_hw *ah, u32 q) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 51 | { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 52 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "queue %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 53 | |
| 54 | REG_WRITE(ah, AR_Q_TXE, 1 << q); |
| 55 | |
| 56 | return true; |
| 57 | } |
| 58 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 59 | u32 ath9k_hw_numtxpending(struct ath_hw *ah, u32 q) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 60 | { |
| 61 | u32 npend; |
| 62 | |
| 63 | npend = REG_READ(ah, AR_QSTS(q)) & AR_Q_STS_PEND_FR_CNT; |
| 64 | if (npend == 0) { |
| 65 | |
| 66 | if (REG_READ(ah, AR_Q_TXE) & (1 << q)) |
| 67 | npend = 1; |
| 68 | } |
| 69 | |
| 70 | return npend; |
| 71 | } |
| 72 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 73 | bool ath9k_hw_updatetxtriglevel(struct ath_hw *ah, bool bIncTrigLevel) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 74 | { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 75 | u32 txcfg, curLevel, newLevel; |
| 76 | enum ath9k_int omask; |
| 77 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 78 | if (ah->tx_trig_level >= MAX_TX_FIFO_THRESHOLD) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 79 | return false; |
| 80 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 81 | omask = ath9k_hw_set_interrupts(ah, ah->mask_reg & ~ATH9K_INT_GLOBAL); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 82 | |
| 83 | txcfg = REG_READ(ah, AR_TXCFG); |
| 84 | curLevel = MS(txcfg, AR_FTRIG); |
| 85 | newLevel = curLevel; |
| 86 | if (bIncTrigLevel) { |
| 87 | if (curLevel < MAX_TX_FIFO_THRESHOLD) |
| 88 | newLevel++; |
| 89 | } else if (curLevel > MIN_TX_FIFO_THRESHOLD) |
| 90 | newLevel--; |
| 91 | if (newLevel != curLevel) |
| 92 | REG_WRITE(ah, AR_TXCFG, |
| 93 | (txcfg & ~AR_FTRIG) | SM(newLevel, AR_FTRIG)); |
| 94 | |
| 95 | ath9k_hw_set_interrupts(ah, omask); |
| 96 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 97 | ah->tx_trig_level = newLevel; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 98 | |
| 99 | return newLevel != curLevel; |
| 100 | } |
| 101 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 102 | bool ath9k_hw_stoptxdma(struct ath_hw *ah, u32 q) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 103 | { |
Sujith | 94ff91d | 2009-01-27 15:06:38 +0530 | [diff] [blame] | 104 | #define ATH9K_TX_STOP_DMA_TIMEOUT 4000 /* usec */ |
| 105 | #define ATH9K_TIME_QUANTUM 100 /* usec */ |
| 106 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 107 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
Sujith | 94ff91d | 2009-01-27 15:06:38 +0530 | [diff] [blame] | 108 | struct ath9k_tx_queue_info *qi; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 109 | u32 tsfLow, j, wait; |
Sujith | 94ff91d | 2009-01-27 15:06:38 +0530 | [diff] [blame] | 110 | u32 wait_time = ATH9K_TX_STOP_DMA_TIMEOUT / ATH9K_TIME_QUANTUM; |
| 111 | |
| 112 | if (q >= pCap->total_queues) { |
| 113 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q); |
| 114 | return false; |
| 115 | } |
| 116 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 117 | qi = &ah->txq[q]; |
Sujith | 94ff91d | 2009-01-27 15:06:38 +0530 | [diff] [blame] | 118 | if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { |
| 119 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue\n"); |
| 120 | return false; |
| 121 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 122 | |
| 123 | REG_WRITE(ah, AR_Q_TXD, 1 << q); |
| 124 | |
Sujith | 94ff91d | 2009-01-27 15:06:38 +0530 | [diff] [blame] | 125 | for (wait = wait_time; wait != 0; wait--) { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 126 | if (ath9k_hw_numtxpending(ah, q) == 0) |
| 127 | break; |
Sujith | 94ff91d | 2009-01-27 15:06:38 +0530 | [diff] [blame] | 128 | udelay(ATH9K_TIME_QUANTUM); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | if (ath9k_hw_numtxpending(ah, q)) { |
| 132 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, |
| 133 | "%s: Num of pending TX Frames %d on Q %d\n", |
| 134 | __func__, ath9k_hw_numtxpending(ah, q), q); |
| 135 | |
| 136 | for (j = 0; j < 2; j++) { |
| 137 | tsfLow = REG_READ(ah, AR_TSF_L32); |
| 138 | REG_WRITE(ah, AR_QUIET2, |
| 139 | SM(10, AR_QUIET2_QUIET_DUR)); |
| 140 | REG_WRITE(ah, AR_QUIET_PERIOD, 100); |
| 141 | REG_WRITE(ah, AR_NEXT_QUIET_TIMER, tsfLow >> 10); |
| 142 | REG_SET_BIT(ah, AR_TIMER_MODE, |
| 143 | AR_QUIET_TIMER_EN); |
| 144 | |
| 145 | if ((REG_READ(ah, AR_TSF_L32) >> 10) == (tsfLow >> 10)) |
| 146 | break; |
| 147 | |
| 148 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 149 | "TSF have moved while trying to set " |
| 150 | "quiet time TSF: 0x%08x\n", tsfLow); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH); |
| 154 | |
| 155 | udelay(200); |
| 156 | REG_CLR_BIT(ah, AR_TIMER_MODE, AR_QUIET_TIMER_EN); |
| 157 | |
Sujith | 94ff91d | 2009-01-27 15:06:38 +0530 | [diff] [blame] | 158 | wait = wait_time; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 159 | while (ath9k_hw_numtxpending(ah, q)) { |
| 160 | if ((--wait) == 0) { |
| 161 | DPRINTF(ah->ah_sc, ATH_DBG_XMIT, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 162 | "Failed to stop Tx DMA in 100 " |
| 163 | "msec after killing last frame\n"); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 164 | break; |
| 165 | } |
Sujith | 94ff91d | 2009-01-27 15:06:38 +0530 | [diff] [blame] | 166 | udelay(ATH9K_TIME_QUANTUM); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 167 | } |
| 168 | |
| 169 | REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH); |
| 170 | } |
| 171 | |
| 172 | REG_WRITE(ah, AR_Q_TXD, 0); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 173 | return wait != 0; |
Sujith | 94ff91d | 2009-01-27 15:06:38 +0530 | [diff] [blame] | 174 | |
| 175 | #undef ATH9K_TX_STOP_DMA_TIMEOUT |
| 176 | #undef ATH9K_TIME_QUANTUM |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 177 | } |
| 178 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 179 | bool ath9k_hw_filltxdesc(struct ath_hw *ah, struct ath_desc *ds, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 180 | u32 segLen, bool firstSeg, |
| 181 | bool lastSeg, const struct ath_desc *ds0) |
| 182 | { |
| 183 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 184 | |
| 185 | if (firstSeg) { |
| 186 | ads->ds_ctl1 |= segLen | (lastSeg ? 0 : AR_TxMore); |
| 187 | } else if (lastSeg) { |
| 188 | ads->ds_ctl0 = 0; |
| 189 | ads->ds_ctl1 = segLen; |
| 190 | ads->ds_ctl2 = AR5416DESC_CONST(ds0)->ds_ctl2; |
| 191 | ads->ds_ctl3 = AR5416DESC_CONST(ds0)->ds_ctl3; |
| 192 | } else { |
| 193 | ads->ds_ctl0 = 0; |
| 194 | ads->ds_ctl1 = segLen | AR_TxMore; |
| 195 | ads->ds_ctl2 = 0; |
| 196 | ads->ds_ctl3 = 0; |
| 197 | } |
| 198 | ads->ds_txstatus0 = ads->ds_txstatus1 = 0; |
| 199 | ads->ds_txstatus2 = ads->ds_txstatus3 = 0; |
| 200 | ads->ds_txstatus4 = ads->ds_txstatus5 = 0; |
| 201 | ads->ds_txstatus6 = ads->ds_txstatus7 = 0; |
| 202 | ads->ds_txstatus8 = ads->ds_txstatus9 = 0; |
| 203 | |
| 204 | return true; |
| 205 | } |
| 206 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 207 | void ath9k_hw_cleartxdesc(struct ath_hw *ah, struct ath_desc *ds) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 208 | { |
| 209 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 210 | |
| 211 | ads->ds_txstatus0 = ads->ds_txstatus1 = 0; |
| 212 | ads->ds_txstatus2 = ads->ds_txstatus3 = 0; |
| 213 | ads->ds_txstatus4 = ads->ds_txstatus5 = 0; |
| 214 | ads->ds_txstatus6 = ads->ds_txstatus7 = 0; |
| 215 | ads->ds_txstatus8 = ads->ds_txstatus9 = 0; |
| 216 | } |
| 217 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 218 | int ath9k_hw_txprocdesc(struct ath_hw *ah, struct ath_desc *ds) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 219 | { |
| 220 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 221 | |
| 222 | if ((ads->ds_txstatus9 & AR_TxDone) == 0) |
| 223 | return -EINPROGRESS; |
| 224 | |
| 225 | ds->ds_txstat.ts_seqnum = MS(ads->ds_txstatus9, AR_SeqNum); |
| 226 | ds->ds_txstat.ts_tstamp = ads->AR_SendTimestamp; |
| 227 | ds->ds_txstat.ts_status = 0; |
| 228 | ds->ds_txstat.ts_flags = 0; |
| 229 | |
| 230 | if (ads->ds_txstatus1 & AR_ExcessiveRetries) |
| 231 | ds->ds_txstat.ts_status |= ATH9K_TXERR_XRETRY; |
| 232 | if (ads->ds_txstatus1 & AR_Filtered) |
| 233 | ds->ds_txstat.ts_status |= ATH9K_TXERR_FILT; |
Sujith | daa9deb | 2008-11-18 09:10:22 +0530 | [diff] [blame] | 234 | if (ads->ds_txstatus1 & AR_FIFOUnderrun) { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 235 | ds->ds_txstat.ts_status |= ATH9K_TXERR_FIFO; |
Sujith | daa9deb | 2008-11-18 09:10:22 +0530 | [diff] [blame] | 236 | ath9k_hw_updatetxtriglevel(ah, true); |
| 237 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 238 | if (ads->ds_txstatus9 & AR_TxOpExceeded) |
| 239 | ds->ds_txstat.ts_status |= ATH9K_TXERR_XTXOP; |
| 240 | if (ads->ds_txstatus1 & AR_TxTimerExpired) |
| 241 | ds->ds_txstat.ts_status |= ATH9K_TXERR_TIMER_EXPIRED; |
| 242 | |
| 243 | if (ads->ds_txstatus1 & AR_DescCfgErr) |
| 244 | ds->ds_txstat.ts_flags |= ATH9K_TX_DESC_CFG_ERR; |
| 245 | if (ads->ds_txstatus1 & AR_TxDataUnderrun) { |
| 246 | ds->ds_txstat.ts_flags |= ATH9K_TX_DATA_UNDERRUN; |
| 247 | ath9k_hw_updatetxtriglevel(ah, true); |
| 248 | } |
| 249 | if (ads->ds_txstatus1 & AR_TxDelimUnderrun) { |
| 250 | ds->ds_txstat.ts_flags |= ATH9K_TX_DELIM_UNDERRUN; |
| 251 | ath9k_hw_updatetxtriglevel(ah, true); |
| 252 | } |
| 253 | if (ads->ds_txstatus0 & AR_TxBaStatus) { |
| 254 | ds->ds_txstat.ts_flags |= ATH9K_TX_BA; |
| 255 | ds->ds_txstat.ba_low = ads->AR_BaBitmapLow; |
| 256 | ds->ds_txstat.ba_high = ads->AR_BaBitmapHigh; |
| 257 | } |
| 258 | |
| 259 | ds->ds_txstat.ts_rateindex = MS(ads->ds_txstatus9, AR_FinalTxIdx); |
| 260 | switch (ds->ds_txstat.ts_rateindex) { |
| 261 | case 0: |
| 262 | ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate0); |
| 263 | break; |
| 264 | case 1: |
| 265 | ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate1); |
| 266 | break; |
| 267 | case 2: |
| 268 | ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate2); |
| 269 | break; |
| 270 | case 3: |
| 271 | ds->ds_txstat.ts_ratecode = MS(ads->ds_ctl3, AR_XmitRate3); |
| 272 | break; |
| 273 | } |
| 274 | |
| 275 | ds->ds_txstat.ts_rssi = MS(ads->ds_txstatus5, AR_TxRSSICombined); |
| 276 | ds->ds_txstat.ts_rssi_ctl0 = MS(ads->ds_txstatus0, AR_TxRSSIAnt00); |
| 277 | ds->ds_txstat.ts_rssi_ctl1 = MS(ads->ds_txstatus0, AR_TxRSSIAnt01); |
| 278 | ds->ds_txstat.ts_rssi_ctl2 = MS(ads->ds_txstatus0, AR_TxRSSIAnt02); |
| 279 | ds->ds_txstat.ts_rssi_ext0 = MS(ads->ds_txstatus5, AR_TxRSSIAnt10); |
| 280 | ds->ds_txstat.ts_rssi_ext1 = MS(ads->ds_txstatus5, AR_TxRSSIAnt11); |
| 281 | ds->ds_txstat.ts_rssi_ext2 = MS(ads->ds_txstatus5, AR_TxRSSIAnt12); |
| 282 | ds->ds_txstat.evm0 = ads->AR_TxEVM0; |
| 283 | ds->ds_txstat.evm1 = ads->AR_TxEVM1; |
| 284 | ds->ds_txstat.evm2 = ads->AR_TxEVM2; |
| 285 | ds->ds_txstat.ts_shortretry = MS(ads->ds_txstatus1, AR_RTSFailCnt); |
| 286 | ds->ds_txstat.ts_longretry = MS(ads->ds_txstatus1, AR_DataFailCnt); |
| 287 | ds->ds_txstat.ts_virtcol = MS(ads->ds_txstatus1, AR_VirtRetryCnt); |
| 288 | ds->ds_txstat.ts_antenna = 1; |
| 289 | |
| 290 | return 0; |
| 291 | } |
| 292 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 293 | void ath9k_hw_set11n_txdesc(struct ath_hw *ah, struct ath_desc *ds, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 294 | u32 pktLen, enum ath9k_pkt_type type, u32 txPower, |
| 295 | u32 keyIx, enum ath9k_key_type keyType, u32 flags) |
| 296 | { |
| 297 | struct ar5416_desc *ads = AR5416DESC(ds); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 298 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 299 | txPower += ah->txpower_indexoffset; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 300 | if (txPower > 63) |
| 301 | txPower = 63; |
| 302 | |
| 303 | ads->ds_ctl0 = (pktLen & AR_FrameLen) |
| 304 | | (flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0) |
| 305 | | SM(txPower, AR_XmitPower) |
| 306 | | (flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0) |
| 307 | | (flags & ATH9K_TXDESC_CLRDMASK ? AR_ClrDestMask : 0) |
| 308 | | (flags & ATH9K_TXDESC_INTREQ ? AR_TxIntrReq : 0) |
| 309 | | (keyIx != ATH9K_TXKEYIX_INVALID ? AR_DestIdxValid : 0); |
| 310 | |
| 311 | ads->ds_ctl1 = |
| 312 | (keyIx != ATH9K_TXKEYIX_INVALID ? SM(keyIx, AR_DestIdx) : 0) |
| 313 | | SM(type, AR_FrameType) |
| 314 | | (flags & ATH9K_TXDESC_NOACK ? AR_NoAck : 0) |
| 315 | | (flags & ATH9K_TXDESC_EXT_ONLY ? AR_ExtOnly : 0) |
| 316 | | (flags & ATH9K_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0); |
| 317 | |
| 318 | ads->ds_ctl6 = SM(keyType, AR_EncrType); |
| 319 | |
| 320 | if (AR_SREV_9285(ah)) { |
| 321 | ads->ds_ctl8 = 0; |
| 322 | ads->ds_ctl9 = 0; |
| 323 | ads->ds_ctl10 = 0; |
| 324 | ads->ds_ctl11 = 0; |
| 325 | } |
| 326 | } |
| 327 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 328 | void ath9k_hw_set11n_ratescenario(struct ath_hw *ah, struct ath_desc *ds, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 329 | struct ath_desc *lastds, |
| 330 | u32 durUpdateEn, u32 rtsctsRate, |
| 331 | u32 rtsctsDuration, |
| 332 | struct ath9k_11n_rate_series series[], |
| 333 | u32 nseries, u32 flags) |
| 334 | { |
| 335 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 336 | struct ar5416_desc *last_ads = AR5416DESC(lastds); |
| 337 | u32 ds_ctl0; |
| 338 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 339 | if (flags & (ATH9K_TXDESC_RTSENA | ATH9K_TXDESC_CTSENA)) { |
| 340 | ds_ctl0 = ads->ds_ctl0; |
| 341 | |
| 342 | if (flags & ATH9K_TXDESC_RTSENA) { |
| 343 | ds_ctl0 &= ~AR_CTSEnable; |
| 344 | ds_ctl0 |= AR_RTSEnable; |
| 345 | } else { |
| 346 | ds_ctl0 &= ~AR_RTSEnable; |
| 347 | ds_ctl0 |= AR_CTSEnable; |
| 348 | } |
| 349 | |
| 350 | ads->ds_ctl0 = ds_ctl0; |
| 351 | } else { |
| 352 | ads->ds_ctl0 = |
| 353 | (ads->ds_ctl0 & ~(AR_RTSEnable | AR_CTSEnable)); |
| 354 | } |
| 355 | |
| 356 | ads->ds_ctl2 = set11nTries(series, 0) |
| 357 | | set11nTries(series, 1) |
| 358 | | set11nTries(series, 2) |
| 359 | | set11nTries(series, 3) |
| 360 | | (durUpdateEn ? AR_DurUpdateEna : 0) |
| 361 | | SM(0, AR_BurstDur); |
| 362 | |
| 363 | ads->ds_ctl3 = set11nRate(series, 0) |
| 364 | | set11nRate(series, 1) |
| 365 | | set11nRate(series, 2) |
| 366 | | set11nRate(series, 3); |
| 367 | |
| 368 | ads->ds_ctl4 = set11nPktDurRTSCTS(series, 0) |
| 369 | | set11nPktDurRTSCTS(series, 1); |
| 370 | |
| 371 | ads->ds_ctl5 = set11nPktDurRTSCTS(series, 2) |
| 372 | | set11nPktDurRTSCTS(series, 3); |
| 373 | |
| 374 | ads->ds_ctl7 = set11nRateFlags(series, 0) |
| 375 | | set11nRateFlags(series, 1) |
| 376 | | set11nRateFlags(series, 2) |
| 377 | | set11nRateFlags(series, 3) |
| 378 | | SM(rtsctsRate, AR_RTSCTSRate); |
| 379 | last_ads->ds_ctl2 = ads->ds_ctl2; |
| 380 | last_ads->ds_ctl3 = ads->ds_ctl3; |
| 381 | } |
| 382 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 383 | void ath9k_hw_set11n_aggr_first(struct ath_hw *ah, struct ath_desc *ds, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 384 | u32 aggrLen) |
| 385 | { |
| 386 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 387 | |
| 388 | ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr); |
| 389 | ads->ds_ctl6 &= ~AR_AggrLen; |
| 390 | ads->ds_ctl6 |= SM(aggrLen, AR_AggrLen); |
| 391 | } |
| 392 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 393 | void ath9k_hw_set11n_aggr_middle(struct ath_hw *ah, struct ath_desc *ds, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 394 | u32 numDelims) |
| 395 | { |
| 396 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 397 | unsigned int ctl6; |
| 398 | |
| 399 | ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr); |
| 400 | |
| 401 | ctl6 = ads->ds_ctl6; |
| 402 | ctl6 &= ~AR_PadDelim; |
| 403 | ctl6 |= SM(numDelims, AR_PadDelim); |
| 404 | ads->ds_ctl6 = ctl6; |
| 405 | } |
| 406 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 407 | void ath9k_hw_set11n_aggr_last(struct ath_hw *ah, struct ath_desc *ds) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 408 | { |
| 409 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 410 | |
| 411 | ads->ds_ctl1 |= AR_IsAggr; |
| 412 | ads->ds_ctl1 &= ~AR_MoreAggr; |
| 413 | ads->ds_ctl6 &= ~AR_PadDelim; |
| 414 | } |
| 415 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 416 | void ath9k_hw_clr11n_aggr(struct ath_hw *ah, struct ath_desc *ds) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 417 | { |
| 418 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 419 | |
| 420 | ads->ds_ctl1 &= (~AR_IsAggr & ~AR_MoreAggr); |
| 421 | } |
| 422 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 423 | void ath9k_hw_set11n_burstduration(struct ath_hw *ah, struct ath_desc *ds, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 424 | u32 burstDuration) |
| 425 | { |
| 426 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 427 | |
| 428 | ads->ds_ctl2 &= ~AR_BurstDur; |
| 429 | ads->ds_ctl2 |= SM(burstDuration, AR_BurstDur); |
| 430 | } |
| 431 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 432 | void ath9k_hw_set11n_virtualmorefrag(struct ath_hw *ah, struct ath_desc *ds, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 433 | u32 vmf) |
| 434 | { |
| 435 | struct ar5416_desc *ads = AR5416DESC(ds); |
| 436 | |
| 437 | if (vmf) |
| 438 | ads->ds_ctl0 |= AR_VirtMoreFrag; |
| 439 | else |
| 440 | ads->ds_ctl0 &= ~AR_VirtMoreFrag; |
| 441 | } |
| 442 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 443 | void ath9k_hw_gettxintrtxqs(struct ath_hw *ah, u32 *txqs) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 444 | { |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 445 | *txqs &= ah->intr_txqs; |
| 446 | ah->intr_txqs &= ~(*txqs); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 447 | } |
| 448 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 449 | bool ath9k_hw_set_txq_props(struct ath_hw *ah, int q, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 450 | const struct ath9k_tx_queue_info *qinfo) |
| 451 | { |
| 452 | u32 cw; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 453 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 454 | struct ath9k_tx_queue_info *qi; |
| 455 | |
| 456 | if (q >= pCap->total_queues) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 457 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 458 | return false; |
| 459 | } |
| 460 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 461 | qi = &ah->txq[q]; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 462 | if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 463 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue\n"); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 464 | return false; |
| 465 | } |
| 466 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 467 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "queue %p\n", qi); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 468 | |
| 469 | qi->tqi_ver = qinfo->tqi_ver; |
| 470 | qi->tqi_subtype = qinfo->tqi_subtype; |
| 471 | qi->tqi_qflags = qinfo->tqi_qflags; |
| 472 | qi->tqi_priority = qinfo->tqi_priority; |
| 473 | if (qinfo->tqi_aifs != ATH9K_TXQ_USEDEFAULT) |
| 474 | qi->tqi_aifs = min(qinfo->tqi_aifs, 255U); |
| 475 | else |
| 476 | qi->tqi_aifs = INIT_AIFS; |
| 477 | if (qinfo->tqi_cwmin != ATH9K_TXQ_USEDEFAULT) { |
| 478 | cw = min(qinfo->tqi_cwmin, 1024U); |
| 479 | qi->tqi_cwmin = 1; |
| 480 | while (qi->tqi_cwmin < cw) |
| 481 | qi->tqi_cwmin = (qi->tqi_cwmin << 1) | 1; |
| 482 | } else |
| 483 | qi->tqi_cwmin = qinfo->tqi_cwmin; |
| 484 | if (qinfo->tqi_cwmax != ATH9K_TXQ_USEDEFAULT) { |
| 485 | cw = min(qinfo->tqi_cwmax, 1024U); |
| 486 | qi->tqi_cwmax = 1; |
| 487 | while (qi->tqi_cwmax < cw) |
| 488 | qi->tqi_cwmax = (qi->tqi_cwmax << 1) | 1; |
| 489 | } else |
| 490 | qi->tqi_cwmax = INIT_CWMAX; |
| 491 | |
| 492 | if (qinfo->tqi_shretry != 0) |
| 493 | qi->tqi_shretry = min((u32) qinfo->tqi_shretry, 15U); |
| 494 | else |
| 495 | qi->tqi_shretry = INIT_SH_RETRY; |
| 496 | if (qinfo->tqi_lgretry != 0) |
| 497 | qi->tqi_lgretry = min((u32) qinfo->tqi_lgretry, 15U); |
| 498 | else |
| 499 | qi->tqi_lgretry = INIT_LG_RETRY; |
| 500 | qi->tqi_cbrPeriod = qinfo->tqi_cbrPeriod; |
| 501 | qi->tqi_cbrOverflowLimit = qinfo->tqi_cbrOverflowLimit; |
| 502 | qi->tqi_burstTime = qinfo->tqi_burstTime; |
| 503 | qi->tqi_readyTime = qinfo->tqi_readyTime; |
| 504 | |
| 505 | switch (qinfo->tqi_subtype) { |
| 506 | case ATH9K_WME_UPSD: |
| 507 | if (qi->tqi_type == ATH9K_TX_QUEUE_DATA) |
| 508 | qi->tqi_intFlags = ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS; |
| 509 | break; |
| 510 | default: |
| 511 | break; |
| 512 | } |
| 513 | |
| 514 | return true; |
| 515 | } |
| 516 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 517 | bool ath9k_hw_get_txq_props(struct ath_hw *ah, int q, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 518 | struct ath9k_tx_queue_info *qinfo) |
| 519 | { |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 520 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 521 | struct ath9k_tx_queue_info *qi; |
| 522 | |
| 523 | if (q >= pCap->total_queues) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 524 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 525 | return false; |
| 526 | } |
| 527 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 528 | qi = &ah->txq[q]; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 529 | if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 530 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue\n"); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 531 | return false; |
| 532 | } |
| 533 | |
| 534 | qinfo->tqi_qflags = qi->tqi_qflags; |
| 535 | qinfo->tqi_ver = qi->tqi_ver; |
| 536 | qinfo->tqi_subtype = qi->tqi_subtype; |
| 537 | qinfo->tqi_qflags = qi->tqi_qflags; |
| 538 | qinfo->tqi_priority = qi->tqi_priority; |
| 539 | qinfo->tqi_aifs = qi->tqi_aifs; |
| 540 | qinfo->tqi_cwmin = qi->tqi_cwmin; |
| 541 | qinfo->tqi_cwmax = qi->tqi_cwmax; |
| 542 | qinfo->tqi_shretry = qi->tqi_shretry; |
| 543 | qinfo->tqi_lgretry = qi->tqi_lgretry; |
| 544 | qinfo->tqi_cbrPeriod = qi->tqi_cbrPeriod; |
| 545 | qinfo->tqi_cbrOverflowLimit = qi->tqi_cbrOverflowLimit; |
| 546 | qinfo->tqi_burstTime = qi->tqi_burstTime; |
| 547 | qinfo->tqi_readyTime = qi->tqi_readyTime; |
| 548 | |
| 549 | return true; |
| 550 | } |
| 551 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 552 | int ath9k_hw_setuptxqueue(struct ath_hw *ah, enum ath9k_tx_queue type, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 553 | const struct ath9k_tx_queue_info *qinfo) |
| 554 | { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 555 | struct ath9k_tx_queue_info *qi; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 556 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 557 | int q; |
| 558 | |
| 559 | switch (type) { |
| 560 | case ATH9K_TX_QUEUE_BEACON: |
| 561 | q = pCap->total_queues - 1; |
| 562 | break; |
| 563 | case ATH9K_TX_QUEUE_CAB: |
| 564 | q = pCap->total_queues - 2; |
| 565 | break; |
| 566 | case ATH9K_TX_QUEUE_PSPOLL: |
| 567 | q = 1; |
| 568 | break; |
| 569 | case ATH9K_TX_QUEUE_UAPSD: |
| 570 | q = pCap->total_queues - 3; |
| 571 | break; |
| 572 | case ATH9K_TX_QUEUE_DATA: |
| 573 | for (q = 0; q < pCap->total_queues; q++) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 574 | if (ah->txq[q].tqi_type == |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 575 | ATH9K_TX_QUEUE_INACTIVE) |
| 576 | break; |
| 577 | if (q == pCap->total_queues) { |
| 578 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 579 | "no available tx queue\n"); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 580 | return -1; |
| 581 | } |
| 582 | break; |
| 583 | default: |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 584 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "bad tx queue type %u\n", type); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 585 | return -1; |
| 586 | } |
| 587 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 588 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "queue %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 589 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 590 | qi = &ah->txq[q]; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 591 | if (qi->tqi_type != ATH9K_TX_QUEUE_INACTIVE) { |
| 592 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 593 | "tx queue %u already active\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 594 | return -1; |
| 595 | } |
| 596 | memset(qi, 0, sizeof(struct ath9k_tx_queue_info)); |
| 597 | qi->tqi_type = type; |
| 598 | if (qinfo == NULL) { |
| 599 | qi->tqi_qflags = |
| 600 | TXQ_FLAG_TXOKINT_ENABLE |
| 601 | | TXQ_FLAG_TXERRINT_ENABLE |
| 602 | | TXQ_FLAG_TXDESCINT_ENABLE | TXQ_FLAG_TXURNINT_ENABLE; |
| 603 | qi->tqi_aifs = INIT_AIFS; |
| 604 | qi->tqi_cwmin = ATH9K_TXQ_USEDEFAULT; |
| 605 | qi->tqi_cwmax = INIT_CWMAX; |
| 606 | qi->tqi_shretry = INIT_SH_RETRY; |
| 607 | qi->tqi_lgretry = INIT_LG_RETRY; |
| 608 | qi->tqi_physCompBuf = 0; |
| 609 | } else { |
| 610 | qi->tqi_physCompBuf = qinfo->tqi_physCompBuf; |
| 611 | (void) ath9k_hw_set_txq_props(ah, q, qinfo); |
| 612 | } |
| 613 | |
| 614 | return q; |
| 615 | } |
| 616 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 617 | bool ath9k_hw_releasetxqueue(struct ath_hw *ah, u32 q) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 618 | { |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 619 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 620 | struct ath9k_tx_queue_info *qi; |
| 621 | |
| 622 | if (q >= pCap->total_queues) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 623 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 624 | return false; |
| 625 | } |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 626 | qi = &ah->txq[q]; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 627 | if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 628 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 629 | return false; |
| 630 | } |
| 631 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 632 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "release queue %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 633 | |
| 634 | qi->tqi_type = ATH9K_TX_QUEUE_INACTIVE; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 635 | ah->txok_interrupt_mask &= ~(1 << q); |
| 636 | ah->txerr_interrupt_mask &= ~(1 << q); |
| 637 | ah->txdesc_interrupt_mask &= ~(1 << q); |
| 638 | ah->txeol_interrupt_mask &= ~(1 << q); |
| 639 | ah->txurn_interrupt_mask &= ~(1 << q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 640 | ath9k_hw_set_txq_interrupts(ah, qi); |
| 641 | |
| 642 | return true; |
| 643 | } |
| 644 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 645 | bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 646 | { |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 647 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
| 648 | struct ath9k_channel *chan = ah->curchan; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 649 | struct ath9k_tx_queue_info *qi; |
| 650 | u32 cwMin, chanCwMin, value; |
| 651 | |
| 652 | if (q >= pCap->total_queues) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 653 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 654 | return false; |
| 655 | } |
| 656 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 657 | qi = &ah->txq[q]; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 658 | if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 659 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 660 | return true; |
| 661 | } |
| 662 | |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 663 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "reset queue %u\n", q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 664 | |
| 665 | if (qi->tqi_cwmin == ATH9K_TXQ_USEDEFAULT) { |
| 666 | if (chan && IS_CHAN_B(chan)) |
| 667 | chanCwMin = INIT_CWMIN_11B; |
| 668 | else |
| 669 | chanCwMin = INIT_CWMIN; |
| 670 | |
| 671 | for (cwMin = 1; cwMin < chanCwMin; cwMin = (cwMin << 1) | 1); |
| 672 | } else |
| 673 | cwMin = qi->tqi_cwmin; |
| 674 | |
| 675 | REG_WRITE(ah, AR_DLCL_IFS(q), |
| 676 | SM(cwMin, AR_D_LCL_IFS_CWMIN) | |
| 677 | SM(qi->tqi_cwmax, AR_D_LCL_IFS_CWMAX) | |
| 678 | SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS)); |
| 679 | |
| 680 | REG_WRITE(ah, AR_DRETRY_LIMIT(q), |
| 681 | SM(INIT_SSH_RETRY, AR_D_RETRY_LIMIT_STA_SH) | |
| 682 | SM(INIT_SLG_RETRY, AR_D_RETRY_LIMIT_STA_LG) | |
| 683 | SM(qi->tqi_shretry, AR_D_RETRY_LIMIT_FR_SH)); |
| 684 | |
| 685 | REG_WRITE(ah, AR_QMISC(q), AR_Q_MISC_DCU_EARLY_TERM_REQ); |
| 686 | REG_WRITE(ah, AR_DMISC(q), |
| 687 | AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x2); |
| 688 | |
| 689 | if (qi->tqi_cbrPeriod) { |
| 690 | REG_WRITE(ah, AR_QCBRCFG(q), |
| 691 | SM(qi->tqi_cbrPeriod, AR_Q_CBRCFG_INTERVAL) | |
| 692 | SM(qi->tqi_cbrOverflowLimit, AR_Q_CBRCFG_OVF_THRESH)); |
| 693 | REG_WRITE(ah, AR_QMISC(q), |
| 694 | REG_READ(ah, AR_QMISC(q)) | AR_Q_MISC_FSP_CBR | |
| 695 | (qi->tqi_cbrOverflowLimit ? |
| 696 | AR_Q_MISC_CBR_EXP_CNTR_LIMIT_EN : 0)); |
| 697 | } |
| 698 | if (qi->tqi_readyTime && (qi->tqi_type != ATH9K_TX_QUEUE_CAB)) { |
| 699 | REG_WRITE(ah, AR_QRDYTIMECFG(q), |
| 700 | SM(qi->tqi_readyTime, AR_Q_RDYTIMECFG_DURATION) | |
| 701 | AR_Q_RDYTIMECFG_EN); |
| 702 | } |
| 703 | |
| 704 | REG_WRITE(ah, AR_DCHNTIME(q), |
| 705 | SM(qi->tqi_burstTime, AR_D_CHNTIME_DUR) | |
| 706 | (qi->tqi_burstTime ? AR_D_CHNTIME_EN : 0)); |
| 707 | |
| 708 | if (qi->tqi_burstTime |
| 709 | && (qi->tqi_qflags & TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE)) { |
| 710 | REG_WRITE(ah, AR_QMISC(q), |
| 711 | REG_READ(ah, AR_QMISC(q)) | |
| 712 | AR_Q_MISC_RDYTIME_EXP_POLICY); |
| 713 | |
| 714 | } |
| 715 | |
| 716 | if (qi->tqi_qflags & TXQ_FLAG_BACKOFF_DISABLE) { |
| 717 | REG_WRITE(ah, AR_DMISC(q), |
| 718 | REG_READ(ah, AR_DMISC(q)) | |
| 719 | AR_D_MISC_POST_FR_BKOFF_DIS); |
| 720 | } |
| 721 | if (qi->tqi_qflags & TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE) { |
| 722 | REG_WRITE(ah, AR_DMISC(q), |
| 723 | REG_READ(ah, AR_DMISC(q)) | |
| 724 | AR_D_MISC_FRAG_BKOFF_EN); |
| 725 | } |
| 726 | switch (qi->tqi_type) { |
| 727 | case ATH9K_TX_QUEUE_BEACON: |
| 728 | REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q)) |
| 729 | | AR_Q_MISC_FSP_DBA_GATED |
| 730 | | AR_Q_MISC_BEACON_USE |
| 731 | | AR_Q_MISC_CBR_INCR_DIS1); |
| 732 | |
| 733 | REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) |
| 734 | | (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL << |
| 735 | AR_D_MISC_ARB_LOCKOUT_CNTRL_S) |
| 736 | | AR_D_MISC_BEACON_USE |
| 737 | | AR_D_MISC_POST_FR_BKOFF_DIS); |
| 738 | break; |
| 739 | case ATH9K_TX_QUEUE_CAB: |
| 740 | REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q)) |
| 741 | | AR_Q_MISC_FSP_DBA_GATED |
| 742 | | AR_Q_MISC_CBR_INCR_DIS1 |
| 743 | | AR_Q_MISC_CBR_INCR_DIS0); |
| 744 | value = (qi->tqi_readyTime - |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 745 | (ah->config.sw_beacon_response_time - |
| 746 | ah->config.dma_beacon_response_time) - |
| 747 | ah->config.additional_swba_backoff) * 1024; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 748 | REG_WRITE(ah, AR_QRDYTIMECFG(q), |
| 749 | value | AR_Q_RDYTIMECFG_EN); |
| 750 | REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) |
| 751 | | (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL << |
| 752 | AR_D_MISC_ARB_LOCKOUT_CNTRL_S)); |
| 753 | break; |
| 754 | case ATH9K_TX_QUEUE_PSPOLL: |
| 755 | REG_WRITE(ah, AR_QMISC(q), |
| 756 | REG_READ(ah, AR_QMISC(q)) | AR_Q_MISC_CBR_INCR_DIS1); |
| 757 | break; |
| 758 | case ATH9K_TX_QUEUE_UAPSD: |
| 759 | REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) | |
| 760 | AR_D_MISC_POST_FR_BKOFF_DIS); |
| 761 | break; |
| 762 | default: |
| 763 | break; |
| 764 | } |
| 765 | |
| 766 | if (qi->tqi_intFlags & ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS) { |
| 767 | REG_WRITE(ah, AR_DMISC(q), |
| 768 | REG_READ(ah, AR_DMISC(q)) | |
| 769 | SM(AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL, |
| 770 | AR_D_MISC_ARB_LOCKOUT_CNTRL) | |
| 771 | AR_D_MISC_POST_FR_BKOFF_DIS); |
| 772 | } |
| 773 | |
| 774 | if (qi->tqi_qflags & TXQ_FLAG_TXOKINT_ENABLE) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 775 | ah->txok_interrupt_mask |= 1 << q; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 776 | else |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 777 | ah->txok_interrupt_mask &= ~(1 << q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 778 | if (qi->tqi_qflags & TXQ_FLAG_TXERRINT_ENABLE) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 779 | ah->txerr_interrupt_mask |= 1 << q; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 780 | else |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 781 | ah->txerr_interrupt_mask &= ~(1 << q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 782 | if (qi->tqi_qflags & TXQ_FLAG_TXDESCINT_ENABLE) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 783 | ah->txdesc_interrupt_mask |= 1 << q; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 784 | else |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 785 | ah->txdesc_interrupt_mask &= ~(1 << q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 786 | if (qi->tqi_qflags & TXQ_FLAG_TXEOLINT_ENABLE) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 787 | ah->txeol_interrupt_mask |= 1 << q; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 788 | else |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 789 | ah->txeol_interrupt_mask &= ~(1 << q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 790 | if (qi->tqi_qflags & TXQ_FLAG_TXURNINT_ENABLE) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 791 | ah->txurn_interrupt_mask |= 1 << q; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 792 | else |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 793 | ah->txurn_interrupt_mask &= ~(1 << q); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 794 | ath9k_hw_set_txq_interrupts(ah, qi); |
| 795 | |
| 796 | return true; |
| 797 | } |
| 798 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 799 | int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 800 | u32 pa, struct ath_desc *nds, u64 tsf) |
| 801 | { |
| 802 | struct ar5416_desc ads; |
| 803 | struct ar5416_desc *adsp = AR5416DESC(ds); |
| 804 | u32 phyerr; |
| 805 | |
| 806 | if ((adsp->ds_rxstatus8 & AR_RxDone) == 0) |
| 807 | return -EINPROGRESS; |
| 808 | |
| 809 | ads.u.rx = adsp->u.rx; |
| 810 | |
| 811 | ds->ds_rxstat.rs_status = 0; |
| 812 | ds->ds_rxstat.rs_flags = 0; |
| 813 | |
| 814 | ds->ds_rxstat.rs_datalen = ads.ds_rxstatus1 & AR_DataLen; |
| 815 | ds->ds_rxstat.rs_tstamp = ads.AR_RcvTimestamp; |
| 816 | |
| 817 | ds->ds_rxstat.rs_rssi = MS(ads.ds_rxstatus4, AR_RxRSSICombined); |
| 818 | ds->ds_rxstat.rs_rssi_ctl0 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt00); |
| 819 | ds->ds_rxstat.rs_rssi_ctl1 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt01); |
| 820 | ds->ds_rxstat.rs_rssi_ctl2 = MS(ads.ds_rxstatus0, AR_RxRSSIAnt02); |
| 821 | ds->ds_rxstat.rs_rssi_ext0 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt10); |
| 822 | ds->ds_rxstat.rs_rssi_ext1 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt11); |
| 823 | ds->ds_rxstat.rs_rssi_ext2 = MS(ads.ds_rxstatus4, AR_RxRSSIAnt12); |
| 824 | if (ads.ds_rxstatus8 & AR_RxKeyIdxValid) |
| 825 | ds->ds_rxstat.rs_keyix = MS(ads.ds_rxstatus8, AR_KeyIdx); |
| 826 | else |
| 827 | ds->ds_rxstat.rs_keyix = ATH9K_RXKEYIX_INVALID; |
| 828 | |
| 829 | ds->ds_rxstat.rs_rate = RXSTATUS_RATE(ah, (&ads)); |
| 830 | ds->ds_rxstat.rs_more = (ads.ds_rxstatus1 & AR_RxMore) ? 1 : 0; |
| 831 | |
| 832 | ds->ds_rxstat.rs_isaggr = (ads.ds_rxstatus8 & AR_RxAggr) ? 1 : 0; |
| 833 | ds->ds_rxstat.rs_moreaggr = |
| 834 | (ads.ds_rxstatus8 & AR_RxMoreAggr) ? 1 : 0; |
| 835 | ds->ds_rxstat.rs_antenna = MS(ads.ds_rxstatus3, AR_RxAntenna); |
| 836 | ds->ds_rxstat.rs_flags = |
| 837 | (ads.ds_rxstatus3 & AR_GI) ? ATH9K_RX_GI : 0; |
| 838 | ds->ds_rxstat.rs_flags |= |
| 839 | (ads.ds_rxstatus3 & AR_2040) ? ATH9K_RX_2040 : 0; |
| 840 | |
| 841 | if (ads.ds_rxstatus8 & AR_PreDelimCRCErr) |
| 842 | ds->ds_rxstat.rs_flags |= ATH9K_RX_DELIM_CRC_PRE; |
| 843 | if (ads.ds_rxstatus8 & AR_PostDelimCRCErr) |
| 844 | ds->ds_rxstat.rs_flags |= ATH9K_RX_DELIM_CRC_POST; |
| 845 | if (ads.ds_rxstatus8 & AR_DecryptBusyErr) |
| 846 | ds->ds_rxstat.rs_flags |= ATH9K_RX_DECRYPT_BUSY; |
| 847 | |
| 848 | if ((ads.ds_rxstatus8 & AR_RxFrameOK) == 0) { |
| 849 | if (ads.ds_rxstatus8 & AR_CRCErr) |
| 850 | ds->ds_rxstat.rs_status |= ATH9K_RXERR_CRC; |
| 851 | else if (ads.ds_rxstatus8 & AR_PHYErr) { |
| 852 | ds->ds_rxstat.rs_status |= ATH9K_RXERR_PHY; |
| 853 | phyerr = MS(ads.ds_rxstatus8, AR_PHYErrCode); |
| 854 | ds->ds_rxstat.rs_phyerr = phyerr; |
| 855 | } else if (ads.ds_rxstatus8 & AR_DecryptCRCErr) |
| 856 | ds->ds_rxstat.rs_status |= ATH9K_RXERR_DECRYPT; |
| 857 | else if (ads.ds_rxstatus8 & AR_MichaelErr) |
| 858 | ds->ds_rxstat.rs_status |= ATH9K_RXERR_MIC; |
| 859 | } |
| 860 | |
| 861 | return 0; |
| 862 | } |
| 863 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 864 | bool ath9k_hw_setuprxdesc(struct ath_hw *ah, struct ath_desc *ds, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 865 | u32 size, u32 flags) |
| 866 | { |
| 867 | struct ar5416_desc *ads = AR5416DESC(ds); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 868 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 869 | |
| 870 | ads->ds_ctl1 = size & AR_BufLen; |
| 871 | if (flags & ATH9K_RXDESC_INTREQ) |
| 872 | ads->ds_ctl1 |= AR_RxIntrReq; |
| 873 | |
| 874 | ads->ds_rxstatus8 &= ~AR_RxDone; |
| 875 | if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) |
| 876 | memset(&(ads->u), 0, sizeof(ads->u)); |
| 877 | |
| 878 | return true; |
| 879 | } |
| 880 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 881 | bool ath9k_hw_setrxabort(struct ath_hw *ah, bool set) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 882 | { |
| 883 | u32 reg; |
| 884 | |
| 885 | if (set) { |
| 886 | REG_SET_BIT(ah, AR_DIAG_SW, |
| 887 | (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT)); |
| 888 | |
Sujith | 0caa7b1 | 2009-02-16 13:23:20 +0530 | [diff] [blame^] | 889 | if (!ath9k_hw_wait(ah, AR_OBS_BUS_1, AR_OBS_BUS_1_RX_STATE, |
| 890 | 0, AH_WAIT_TIMEOUT)) { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 891 | REG_CLR_BIT(ah, AR_DIAG_SW, |
| 892 | (AR_DIAG_RX_DIS | |
| 893 | AR_DIAG_RX_ABORT)); |
| 894 | |
| 895 | reg = REG_READ(ah, AR_OBS_BUS_1); |
| 896 | DPRINTF(ah->ah_sc, ATH_DBG_FATAL, |
Sujith | 04bd463 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 897 | "rx failed to go idle in 10 ms RXSM=0x%x\n", reg); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 898 | |
| 899 | return false; |
| 900 | } |
| 901 | } else { |
| 902 | REG_CLR_BIT(ah, AR_DIAG_SW, |
| 903 | (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT)); |
| 904 | } |
| 905 | |
| 906 | return true; |
| 907 | } |
| 908 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 909 | void ath9k_hw_putrxbuf(struct ath_hw *ah, u32 rxdp) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 910 | { |
| 911 | REG_WRITE(ah, AR_RXDP, rxdp); |
| 912 | } |
| 913 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 914 | void ath9k_hw_rxena(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 915 | { |
| 916 | REG_WRITE(ah, AR_CR, AR_CR_RXE); |
| 917 | } |
| 918 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 919 | void ath9k_hw_startpcureceive(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 920 | { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 921 | ath9k_enable_mib_counters(ah); |
| 922 | |
| 923 | ath9k_ani_reset(ah); |
Senthil Balasubramanian | e759407 | 2008-12-08 19:43:48 +0530 | [diff] [blame] | 924 | |
Senthil Balasubramanian | 8aa15e1 | 2008-12-08 19:43:50 +0530 | [diff] [blame] | 925 | REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT)); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 926 | } |
| 927 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 928 | void ath9k_hw_stoppcurecv(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 929 | { |
| 930 | REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS); |
| 931 | |
| 932 | ath9k_hw_disable_mib_counters(ah); |
| 933 | } |
| 934 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 935 | bool ath9k_hw_stopdmarecv(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 936 | { |
Sujith | 0caa7b1 | 2009-02-16 13:23:20 +0530 | [diff] [blame^] | 937 | #define AH_RX_STOP_DMA_TIMEOUT 10000 /* usec */ |
| 938 | #define AH_RX_TIME_QUANTUM 100 /* usec */ |
| 939 | |
| 940 | int i; |
| 941 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 942 | REG_WRITE(ah, AR_CR, AR_CR_RXD); |
| 943 | |
Sujith | 0caa7b1 | 2009-02-16 13:23:20 +0530 | [diff] [blame^] | 944 | /* Wait for rx enable bit to go low */ |
| 945 | for (i = AH_RX_STOP_DMA_TIMEOUT / AH_TIME_QUANTUM; i != 0; i--) { |
| 946 | if ((REG_READ(ah, AR_CR) & AR_CR_RXE) == 0) |
| 947 | break; |
| 948 | udelay(AH_TIME_QUANTUM); |
| 949 | } |
| 950 | |
| 951 | if (i == 0) { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 952 | DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, |
Sujith | 0caa7b1 | 2009-02-16 13:23:20 +0530 | [diff] [blame^] | 953 | "dma failed to stop in %d ms " |
| 954 | "AR_CR=0x%08x AR_DIAG_SW=0x%08x\n", |
| 955 | AH_RX_STOP_DMA_TIMEOUT / 1000, |
| 956 | REG_READ(ah, AR_CR), |
| 957 | REG_READ(ah, AR_DIAG_SW)); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 958 | return false; |
| 959 | } else { |
| 960 | return true; |
| 961 | } |
Sujith | 0caa7b1 | 2009-02-16 13:23:20 +0530 | [diff] [blame^] | 962 | |
| 963 | #undef AH_RX_TIME_QUANTUM |
| 964 | #undef AH_RX_STOP_DMA_TIMEOUT |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 965 | } |