Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1 | /* |
Sujith Manoharan | 5b68138 | 2011-05-17 13:36:18 +0530 | [diff] [blame] | 2 | * Copyright (c) 2008-2011 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 | |
| 17 | #include <linux/io.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 18 | #include <linux/slab.h> |
Paul Gortmaker | 9d9779e | 2011-07-03 15:21:01 -0400 | [diff] [blame] | 19 | #include <linux/module.h> |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 20 | #include <asm/unaligned.h> |
| 21 | |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 22 | #include "hw.h" |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 23 | #include "hw-ops.h" |
Luis R. Rodriguez | cfe8cba | 2009-09-13 23:39:31 -0700 | [diff] [blame] | 24 | #include "rc.h" |
Luis R. Rodriguez | b622a72 | 2010-04-15 17:39:28 -0400 | [diff] [blame] | 25 | #include "ar9003_mac.h" |
Sujith Manoharan | f4701b5 | 2012-02-22 12:41:18 +0530 | [diff] [blame] | 26 | #include "ar9003_mci.h" |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 27 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 28 | static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 29 | |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 30 | MODULE_AUTHOR("Atheros Communications"); |
| 31 | MODULE_DESCRIPTION("Support for Atheros 802.11n wireless LAN cards."); |
| 32 | MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards"); |
| 33 | MODULE_LICENSE("Dual BSD/GPL"); |
| 34 | |
| 35 | static int __init ath9k_init(void) |
| 36 | { |
| 37 | return 0; |
| 38 | } |
| 39 | module_init(ath9k_init); |
| 40 | |
| 41 | static void __exit ath9k_exit(void) |
| 42 | { |
| 43 | return; |
| 44 | } |
| 45 | module_exit(ath9k_exit); |
| 46 | |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 47 | /* Private hardware callbacks */ |
| 48 | |
| 49 | static void ath9k_hw_init_cal_settings(struct ath_hw *ah) |
| 50 | { |
| 51 | ath9k_hw_private_ops(ah)->init_cal_settings(ah); |
| 52 | } |
| 53 | |
| 54 | static void ath9k_hw_init_mode_regs(struct ath_hw *ah) |
| 55 | { |
| 56 | ath9k_hw_private_ops(ah)->init_mode_regs(ah); |
| 57 | } |
| 58 | |
Luis R. Rodriguez | 6477396 | 2010-04-15 17:38:17 -0400 | [diff] [blame] | 59 | static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah, |
| 60 | struct ath9k_channel *chan) |
| 61 | { |
| 62 | return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan); |
| 63 | } |
| 64 | |
Luis R. Rodriguez | 991312d | 2010-04-15 17:39:05 -0400 | [diff] [blame] | 65 | static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah) |
| 66 | { |
| 67 | if (!ath9k_hw_private_ops(ah)->init_mode_gain_regs) |
| 68 | return; |
| 69 | |
| 70 | ath9k_hw_private_ops(ah)->init_mode_gain_regs(ah); |
| 71 | } |
| 72 | |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 73 | static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah) |
| 74 | { |
| 75 | /* You will not have this callback if using the old ANI */ |
| 76 | if (!ath9k_hw_private_ops(ah)->ani_cache_ini_regs) |
| 77 | return; |
| 78 | |
| 79 | ath9k_hw_private_ops(ah)->ani_cache_ini_regs(ah); |
| 80 | } |
| 81 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 82 | /********************/ |
| 83 | /* Helper Functions */ |
| 84 | /********************/ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 85 | |
Felix Fietkau | dfdac8a | 2010-10-08 22:13:51 +0200 | [diff] [blame] | 86 | static void ath9k_hw_set_clockrate(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 87 | { |
Luis R. Rodriguez | b002a4a | 2009-09-13 00:03:27 -0700 | [diff] [blame] | 88 | struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; |
Felix Fietkau | dfdac8a | 2010-10-08 22:13:51 +0200 | [diff] [blame] | 89 | struct ath_common *common = ath9k_hw_common(ah); |
| 90 | unsigned int clockrate; |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 91 | |
Felix Fietkau | 087b6ff | 2011-07-09 11:12:49 +0700 | [diff] [blame] | 92 | /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */ |
| 93 | if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) |
| 94 | clockrate = 117; |
| 95 | else if (!ah->curchan) /* should really check for CCK instead */ |
Felix Fietkau | dfdac8a | 2010-10-08 22:13:51 +0200 | [diff] [blame] | 96 | clockrate = ATH9K_CLOCK_RATE_CCK; |
| 97 | else if (conf->channel->band == IEEE80211_BAND_2GHZ) |
| 98 | clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM; |
| 99 | else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK) |
| 100 | clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM; |
Vasanthakumar Thiagarajan | e555372 | 2010-04-26 15:04:33 -0400 | [diff] [blame] | 101 | else |
Felix Fietkau | dfdac8a | 2010-10-08 22:13:51 +0200 | [diff] [blame] | 102 | clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM; |
| 103 | |
| 104 | if (conf_is_ht40(conf)) |
| 105 | clockrate *= 2; |
| 106 | |
Felix Fietkau | 906c720 | 2011-07-09 11:12:48 +0700 | [diff] [blame] | 107 | if (ah->curchan) { |
| 108 | if (IS_CHAN_HALF_RATE(ah->curchan)) |
| 109 | clockrate /= 2; |
| 110 | if (IS_CHAN_QUARTER_RATE(ah->curchan)) |
| 111 | clockrate /= 4; |
| 112 | } |
| 113 | |
Felix Fietkau | dfdac8a | 2010-10-08 22:13:51 +0200 | [diff] [blame] | 114 | common->clockrate = clockrate; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 115 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 116 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 117 | static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 118 | { |
Felix Fietkau | dfdac8a | 2010-10-08 22:13:51 +0200 | [diff] [blame] | 119 | struct ath_common *common = ath9k_hw_common(ah); |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 120 | |
Felix Fietkau | dfdac8a | 2010-10-08 22:13:51 +0200 | [diff] [blame] | 121 | return usecs * common->clockrate; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 122 | } |
| 123 | |
Sujith | 0caa7b1 | 2009-02-16 13:23:20 +0530 | [diff] [blame] | 124 | bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 125 | { |
| 126 | int i; |
| 127 | |
Sujith | 0caa7b1 | 2009-02-16 13:23:20 +0530 | [diff] [blame] | 128 | BUG_ON(timeout < AH_TIME_QUANTUM); |
| 129 | |
| 130 | for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 131 | if ((REG_READ(ah, reg) & mask) == val) |
| 132 | return true; |
| 133 | |
| 134 | udelay(AH_TIME_QUANTUM); |
| 135 | } |
Sujith | 04bd4638 | 2008-11-28 22:18:05 +0530 | [diff] [blame] | 136 | |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 137 | ath_dbg(ath9k_hw_common(ah), ANY, |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 138 | "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n", |
| 139 | timeout, reg, REG_READ(ah, reg), mask, val); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 140 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 141 | return false; |
| 142 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 143 | EXPORT_SYMBOL(ath9k_hw_wait); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 144 | |
Felix Fietkau | a9b6b25 | 2011-03-23 20:57:27 +0100 | [diff] [blame] | 145 | void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array, |
| 146 | int column, unsigned int *writecnt) |
| 147 | { |
| 148 | int r; |
| 149 | |
| 150 | ENABLE_REGWRITE_BUFFER(ah); |
| 151 | for (r = 0; r < array->ia_rows; r++) { |
| 152 | REG_WRITE(ah, INI_RA(array, r, 0), |
| 153 | INI_RA(array, r, column)); |
| 154 | DO_DELAY(*writecnt); |
| 155 | } |
| 156 | REGWRITE_BUFFER_FLUSH(ah); |
| 157 | } |
| 158 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 159 | u32 ath9k_hw_reverse_bits(u32 val, u32 n) |
| 160 | { |
| 161 | u32 retval; |
| 162 | int i; |
| 163 | |
| 164 | for (i = 0, retval = 0; i < n; i++) { |
| 165 | retval = (retval << 1) | (val & 1); |
| 166 | val >>= 1; |
| 167 | } |
| 168 | return retval; |
| 169 | } |
| 170 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 171 | u16 ath9k_hw_computetxtime(struct ath_hw *ah, |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 172 | u8 phy, int kbps, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 173 | u32 frameLen, u16 rateix, |
| 174 | bool shortPreamble) |
| 175 | { |
| 176 | u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 177 | |
| 178 | if (kbps == 0) |
| 179 | return 0; |
| 180 | |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 181 | switch (phy) { |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 182 | case WLAN_RC_PHY_CCK: |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 183 | phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS; |
Felix Fietkau | 545750d | 2009-11-23 22:21:01 +0100 | [diff] [blame] | 184 | if (shortPreamble) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 185 | phyTime >>= 1; |
| 186 | numBits = frameLen << 3; |
| 187 | txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps); |
| 188 | break; |
Sujith | 46d14a5 | 2008-11-18 09:08:13 +0530 | [diff] [blame] | 189 | case WLAN_RC_PHY_OFDM: |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 190 | if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 191 | bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000; |
| 192 | numBits = OFDM_PLCP_BITS + (frameLen << 3); |
| 193 | numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol); |
| 194 | txTime = OFDM_SIFS_TIME_QUARTER |
| 195 | + OFDM_PREAMBLE_TIME_QUARTER |
| 196 | + (numSymbols * OFDM_SYMBOL_TIME_QUARTER); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 197 | } else if (ah->curchan && |
| 198 | IS_CHAN_HALF_RATE(ah->curchan)) { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 199 | bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000; |
| 200 | numBits = OFDM_PLCP_BITS + (frameLen << 3); |
| 201 | numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol); |
| 202 | txTime = OFDM_SIFS_TIME_HALF + |
| 203 | OFDM_PREAMBLE_TIME_HALF |
| 204 | + (numSymbols * OFDM_SYMBOL_TIME_HALF); |
| 205 | } else { |
| 206 | bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000; |
| 207 | numBits = OFDM_PLCP_BITS + (frameLen << 3); |
| 208 | numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol); |
| 209 | txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME |
| 210 | + (numSymbols * OFDM_SYMBOL_TIME); |
| 211 | } |
| 212 | break; |
| 213 | default: |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 214 | ath_err(ath9k_hw_common(ah), |
| 215 | "Unknown phy %u (rate ix %u)\n", phy, rateix); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 216 | txTime = 0; |
| 217 | break; |
| 218 | } |
| 219 | |
| 220 | return txTime; |
| 221 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 222 | EXPORT_SYMBOL(ath9k_hw_computetxtime); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 223 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 224 | void ath9k_hw_get_channel_centers(struct ath_hw *ah, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 225 | struct ath9k_channel *chan, |
| 226 | struct chan_centers *centers) |
| 227 | { |
| 228 | int8_t extoff; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 229 | |
| 230 | if (!IS_CHAN_HT40(chan)) { |
| 231 | centers->ctl_center = centers->ext_center = |
| 232 | centers->synth_center = chan->channel; |
| 233 | return; |
| 234 | } |
| 235 | |
| 236 | if ((chan->chanmode == CHANNEL_A_HT40PLUS) || |
| 237 | (chan->chanmode == CHANNEL_G_HT40PLUS)) { |
| 238 | centers->synth_center = |
| 239 | chan->channel + HT40_CHANNEL_CENTER_SHIFT; |
| 240 | extoff = 1; |
| 241 | } else { |
| 242 | centers->synth_center = |
| 243 | chan->channel - HT40_CHANNEL_CENTER_SHIFT; |
| 244 | extoff = -1; |
| 245 | } |
| 246 | |
| 247 | centers->ctl_center = |
| 248 | centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT); |
Luis R. Rodriguez | 6420014 | 2009-09-13 22:05:04 -0700 | [diff] [blame] | 249 | /* 25 MHz spacing is supported by hw but not on upper layers */ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 250 | centers->ext_center = |
Luis R. Rodriguez | 6420014 | 2009-09-13 22:05:04 -0700 | [diff] [blame] | 251 | centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | /******************/ |
| 255 | /* Chip Revisions */ |
| 256 | /******************/ |
| 257 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 258 | static void ath9k_hw_read_revisions(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 259 | { |
| 260 | u32 val; |
| 261 | |
Vasanthakumar Thiagarajan | ecb1d38 | 2011-04-19 19:29:18 +0530 | [diff] [blame] | 262 | switch (ah->hw_version.devid) { |
| 263 | case AR5416_AR9100_DEVID: |
| 264 | ah->hw_version.macVersion = AR_SREV_VERSION_9100; |
| 265 | break; |
Gabor Juhos | 3762561 | 2011-06-21 11:23:23 +0200 | [diff] [blame] | 266 | case AR9300_DEVID_AR9330: |
| 267 | ah->hw_version.macVersion = AR_SREV_VERSION_9330; |
| 268 | if (ah->get_mac_revision) { |
| 269 | ah->hw_version.macRev = ah->get_mac_revision(); |
| 270 | } else { |
| 271 | val = REG_READ(ah, AR_SREV); |
| 272 | ah->hw_version.macRev = MS(val, AR_SREV_REVISION2); |
| 273 | } |
| 274 | return; |
Vasanthakumar Thiagarajan | ecb1d38 | 2011-04-19 19:29:18 +0530 | [diff] [blame] | 275 | case AR9300_DEVID_AR9340: |
| 276 | ah->hw_version.macVersion = AR_SREV_VERSION_9340; |
| 277 | val = REG_READ(ah, AR_SREV); |
| 278 | ah->hw_version.macRev = MS(val, AR_SREV_REVISION2); |
| 279 | return; |
| 280 | } |
| 281 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 282 | val = REG_READ(ah, AR_SREV) & AR_SREV_ID; |
| 283 | |
| 284 | if (val == 0xFF) { |
| 285 | val = REG_READ(ah, AR_SREV); |
Sujith | d535a42 | 2009-02-09 13:27:06 +0530 | [diff] [blame] | 286 | ah->hw_version.macVersion = |
| 287 | (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S; |
| 288 | ah->hw_version.macRev = MS(val, AR_SREV_REVISION2); |
Mohammed Shafi Shajakhan | 76ed94b | 2011-09-30 11:31:28 +0530 | [diff] [blame] | 289 | |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 290 | if (AR_SREV_9462(ah)) |
Mohammed Shafi Shajakhan | 76ed94b | 2011-09-30 11:31:28 +0530 | [diff] [blame] | 291 | ah->is_pciexpress = true; |
| 292 | else |
| 293 | ah->is_pciexpress = (val & |
| 294 | AR_SREV_TYPE2_HOST_MODE) ? 0 : 1; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 295 | } else { |
| 296 | if (!AR_SREV_9100(ah)) |
Sujith | d535a42 | 2009-02-09 13:27:06 +0530 | [diff] [blame] | 297 | ah->hw_version.macVersion = MS(val, AR_SREV_VERSION); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 298 | |
Sujith | d535a42 | 2009-02-09 13:27:06 +0530 | [diff] [blame] | 299 | ah->hw_version.macRev = val & AR_SREV_REVISION; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 300 | |
Sujith | d535a42 | 2009-02-09 13:27:06 +0530 | [diff] [blame] | 301 | if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 302 | ah->is_pciexpress = true; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 303 | } |
| 304 | } |
| 305 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 306 | /************************************/ |
| 307 | /* HW Attach, Detach, Init Routines */ |
| 308 | /************************************/ |
| 309 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 310 | static void ath9k_hw_disablepcie(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 311 | { |
Felix Fietkau | 040b74f | 2010-12-12 00:51:07 +0100 | [diff] [blame] | 312 | if (!AR_SREV_5416(ah)) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 313 | return; |
| 314 | |
| 315 | REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00); |
| 316 | REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924); |
| 317 | REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029); |
| 318 | REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824); |
| 319 | REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579); |
| 320 | REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000); |
| 321 | REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40); |
| 322 | REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554); |
| 323 | REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007); |
| 324 | |
| 325 | REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000); |
| 326 | } |
| 327 | |
Stanislaw Gruszka | d493008 | 2011-07-29 15:59:08 +0200 | [diff] [blame] | 328 | static void ath9k_hw_aspm_init(struct ath_hw *ah) |
| 329 | { |
| 330 | struct ath_common *common = ath9k_hw_common(ah); |
| 331 | |
| 332 | if (common->bus_ops->aspm_init) |
| 333 | common->bus_ops->aspm_init(common); |
| 334 | } |
| 335 | |
Senthil Balasubramanian | 1f3f061 | 2010-04-15 17:38:29 -0400 | [diff] [blame] | 336 | /* This should work for all families including legacy */ |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 337 | static bool ath9k_hw_chip_test(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 338 | { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 339 | struct ath_common *common = ath9k_hw_common(ah); |
Senthil Balasubramanian | 1f3f061 | 2010-04-15 17:38:29 -0400 | [diff] [blame] | 340 | u32 regAddr[2] = { AR_STA_ID0 }; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 341 | u32 regHold[2]; |
Joe Perches | 07b2fa5 | 2010-11-20 18:38:53 -0800 | [diff] [blame] | 342 | static const u32 patternData[4] = { |
| 343 | 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999 |
| 344 | }; |
Senthil Balasubramanian | 1f3f061 | 2010-04-15 17:38:29 -0400 | [diff] [blame] | 345 | int i, j, loop_max; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 346 | |
Senthil Balasubramanian | 1f3f061 | 2010-04-15 17:38:29 -0400 | [diff] [blame] | 347 | if (!AR_SREV_9300_20_OR_LATER(ah)) { |
| 348 | loop_max = 2; |
| 349 | regAddr[1] = AR_PHY_BASE + (8 << 2); |
| 350 | } else |
| 351 | loop_max = 1; |
| 352 | |
| 353 | for (i = 0; i < loop_max; i++) { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 354 | u32 addr = regAddr[i]; |
| 355 | u32 wrData, rdData; |
| 356 | |
| 357 | regHold[i] = REG_READ(ah, addr); |
| 358 | for (j = 0; j < 0x100; j++) { |
| 359 | wrData = (j << 16) | j; |
| 360 | REG_WRITE(ah, addr, wrData); |
| 361 | rdData = REG_READ(ah, addr); |
| 362 | if (rdData != wrData) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 363 | ath_err(common, |
| 364 | "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n", |
| 365 | addr, wrData, rdData); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 366 | return false; |
| 367 | } |
| 368 | } |
| 369 | for (j = 0; j < 4; j++) { |
| 370 | wrData = patternData[j]; |
| 371 | REG_WRITE(ah, addr, wrData); |
| 372 | rdData = REG_READ(ah, addr); |
| 373 | if (wrData != rdData) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 374 | ath_err(common, |
| 375 | "address test failed addr: 0x%08x - wr:0x%08x != rd:0x%08x\n", |
| 376 | addr, wrData, rdData); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 377 | return false; |
| 378 | } |
| 379 | } |
| 380 | REG_WRITE(ah, regAddr[i], regHold[i]); |
| 381 | } |
| 382 | udelay(100); |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 383 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 384 | return true; |
| 385 | } |
| 386 | |
Luis R. Rodriguez | b8b0f37 | 2009-08-03 12:24:43 -0700 | [diff] [blame] | 387 | static void ath9k_hw_init_config(struct ath_hw *ah) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 388 | { |
| 389 | int i; |
| 390 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 391 | ah->config.dma_beacon_response_time = 2; |
| 392 | ah->config.sw_beacon_response_time = 10; |
| 393 | ah->config.additional_swba_backoff = 0; |
| 394 | ah->config.ack_6mb = 0x0; |
| 395 | ah->config.cwm_ignore_extcca = 0; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 396 | ah->config.pcie_clock_req = 0; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 397 | ah->config.pcie_waen = 0; |
| 398 | ah->config.analog_shiftreg = 1; |
Luis R. Rodriguez | 03c7251 | 2010-06-12 00:33:46 -0400 | [diff] [blame] | 399 | ah->config.enable_ani = true; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 400 | |
| 401 | for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) { |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 402 | ah->config.spurchans[i][0] = AR_NO_SPUR; |
| 403 | ah->config.spurchans[i][1] = AR_NO_SPUR; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 404 | } |
| 405 | |
Luis R. Rodriguez | 6f48101 | 2011-01-20 17:47:39 -0800 | [diff] [blame] | 406 | /* PAPRD needs some more work to be enabled */ |
| 407 | ah->config.paprd_disable = 1; |
| 408 | |
Sujith | 0ce024c | 2009-12-14 14:57:00 +0530 | [diff] [blame] | 409 | ah->config.rx_intr_mitigation = true; |
Luis R. Rodriguez | 6a0ec30 | 2010-06-21 18:38:49 -0400 | [diff] [blame] | 410 | ah->config.pcieSerDesWrite = true; |
Luis R. Rodriguez | 6158425 | 2009-03-12 18:18:49 -0400 | [diff] [blame] | 411 | |
| 412 | /* |
| 413 | * We need this for PCI devices only (Cardbus, PCI, miniPCI) |
| 414 | * _and_ if on non-uniprocessor systems (Multiprocessor/HT). |
| 415 | * This means we use it for all AR5416 devices, and the few |
| 416 | * minor PCI AR9280 devices out there. |
| 417 | * |
| 418 | * Serialization is required because these devices do not handle |
| 419 | * well the case of two concurrent reads/writes due to the latency |
| 420 | * involved. During one read/write another read/write can be issued |
| 421 | * on another CPU while the previous read/write may still be working |
| 422 | * on our hardware, if we hit this case the hardware poops in a loop. |
| 423 | * We prevent this by serializing reads and writes. |
| 424 | * |
| 425 | * This issue is not present on PCI-Express devices or pre-AR5416 |
| 426 | * devices (legacy, 802.11abg). |
| 427 | */ |
| 428 | if (num_possible_cpus() > 1) |
David S. Miller | 2d6a5e9 | 2009-03-17 15:01:30 -0700 | [diff] [blame] | 429 | ah->config.serialize_regmode = SER_REG_MODE_AUTO; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 430 | } |
| 431 | |
Luis R. Rodriguez | 50aca25 | 2009-08-03 12:24:42 -0700 | [diff] [blame] | 432 | static void ath9k_hw_init_defaults(struct ath_hw *ah) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 433 | { |
Luis R. Rodriguez | 608b88c | 2009-08-17 18:07:23 -0700 | [diff] [blame] | 434 | struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah); |
| 435 | |
| 436 | regulatory->country_code = CTRY_DEFAULT; |
| 437 | regulatory->power_limit = MAX_RATE_POWER; |
Luis R. Rodriguez | 608b88c | 2009-08-17 18:07:23 -0700 | [diff] [blame] | 438 | |
Sujith | d535a42 | 2009-02-09 13:27:06 +0530 | [diff] [blame] | 439 | ah->hw_version.magic = AR5416_MAGIC; |
Sujith | d535a42 | 2009-02-09 13:27:06 +0530 | [diff] [blame] | 440 | ah->hw_version.subvendorid = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 441 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 442 | ah->atim_window = 0; |
Felix Fietkau | 16f2411 | 2010-06-12 17:22:32 +0200 | [diff] [blame] | 443 | ah->sta_id1_defaults = |
| 444 | AR_STA_ID1_CRPT_MIC_ENABLE | |
| 445 | AR_STA_ID1_MCAST_KSRCH; |
Felix Fietkau | f171760 | 2011-03-19 13:55:41 +0100 | [diff] [blame] | 446 | if (AR_SREV_9100(ah)) |
| 447 | ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 448 | ah->enable_32kHz_clock = DONT_USE_32KHZ; |
Rajkumar Manoharan | e3f2acc | 2011-08-27 11:22:59 +0530 | [diff] [blame] | 449 | ah->slottime = ATH9K_SLOT_TIME_9; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 450 | ah->globaltxtimeout = (u32) -1; |
Gabor Juhos | cbdec97 | 2009-07-24 17:27:22 +0200 | [diff] [blame] | 451 | ah->power_mode = ATH9K_PM_UNDEFINED; |
Felix Fietkau | 8efa7a8 | 2012-03-14 16:40:23 +0100 | [diff] [blame] | 452 | ah->htc_reset_init = true; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 453 | } |
| 454 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 455 | static int ath9k_hw_init_macaddr(struct ath_hw *ah) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 456 | { |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 457 | struct ath_common *common = ath9k_hw_common(ah); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 458 | u32 sum; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 459 | int i; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 460 | u16 eeval; |
Joe Perches | 07b2fa5 | 2010-11-20 18:38:53 -0800 | [diff] [blame] | 461 | static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW }; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 462 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 463 | sum = 0; |
| 464 | for (i = 0; i < 3; i++) { |
Luis R. Rodriguez | 4910167 | 2010-04-15 17:39:13 -0400 | [diff] [blame] | 465 | eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 466 | sum += eeval; |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 467 | common->macaddr[2 * i] = eeval >> 8; |
| 468 | common->macaddr[2 * i + 1] = eeval & 0xff; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 469 | } |
Sujith | d8baa93 | 2009-03-30 15:28:25 +0530 | [diff] [blame] | 470 | if (sum == 0 || sum == 0xffff * 3) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 471 | return -EADDRNOTAVAIL; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 472 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 473 | return 0; |
| 474 | } |
| 475 | |
Luis R. Rodriguez | f637cfd | 2009-08-03 12:24:46 -0700 | [diff] [blame] | 476 | static int ath9k_hw_post_init(struct ath_hw *ah) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 477 | { |
Sujith Manoharan | 6cae913d | 2011-01-04 13:16:37 +0530 | [diff] [blame] | 478 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 479 | int ecode; |
| 480 | |
Sujith Manoharan | 6cae913d | 2011-01-04 13:16:37 +0530 | [diff] [blame] | 481 | if (common->bus_ops->ath_bus_type != ATH_USB) { |
Sujith | 527d485 | 2010-03-17 14:25:16 +0530 | [diff] [blame] | 482 | if (!ath9k_hw_chip_test(ah)) |
| 483 | return -ENODEV; |
| 484 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 485 | |
Luis R. Rodriguez | ebd5a14 | 2010-04-15 17:39:18 -0400 | [diff] [blame] | 486 | if (!AR_SREV_9300_20_OR_LATER(ah)) { |
| 487 | ecode = ar9002_hw_rf_claim(ah); |
| 488 | if (ecode != 0) |
| 489 | return ecode; |
| 490 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 491 | |
Luis R. Rodriguez | f637cfd | 2009-08-03 12:24:46 -0700 | [diff] [blame] | 492 | ecode = ath9k_hw_eeprom_init(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 493 | if (ecode != 0) |
| 494 | return ecode; |
Sujith | 7d01b22 | 2009-03-13 08:55:55 +0530 | [diff] [blame] | 495 | |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 496 | ath_dbg(ath9k_hw_common(ah), CONFIG, "Eeprom VER: %d, REV: %d\n", |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 497 | ah->eep_ops->get_eeprom_ver(ah), |
| 498 | ah->eep_ops->get_eeprom_rev(ah)); |
Sujith | 7d01b22 | 2009-03-13 08:55:55 +0530 | [diff] [blame] | 499 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 500 | ecode = ath9k_hw_rf_alloc_ext_banks(ah); |
| 501 | if (ecode) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 502 | ath_err(ath9k_hw_common(ah), |
| 503 | "Failed allocating banks for external radio\n"); |
Rajkumar Manoharan | 48a7c3d | 2010-11-08 20:40:53 +0530 | [diff] [blame] | 504 | ath9k_hw_rf_free_ext_banks(ah); |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 505 | return ecode; |
Luis R. Rodriguez | 574d6b1 | 2009-10-19 02:33:37 -0400 | [diff] [blame] | 506 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 507 | |
Nikolay Martynov | 4279425 | 2011-12-02 22:39:16 -0500 | [diff] [blame] | 508 | if (ah->config.enable_ani) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 509 | ath9k_hw_ani_setup(ah); |
Luis R. Rodriguez | f637cfd | 2009-08-03 12:24:46 -0700 | [diff] [blame] | 510 | ath9k_hw_ani_init(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 511 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 512 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 513 | return 0; |
| 514 | } |
| 515 | |
Luis R. Rodriguez | 8525f28 | 2010-04-15 17:38:19 -0400 | [diff] [blame] | 516 | static void ath9k_hw_attach_ops(struct ath_hw *ah) |
Luis R. Rodriguez | ee2bb46 | 2009-08-03 12:24:39 -0700 | [diff] [blame] | 517 | { |
Luis R. Rodriguez | 8525f28 | 2010-04-15 17:38:19 -0400 | [diff] [blame] | 518 | if (AR_SREV_9300_20_OR_LATER(ah)) |
| 519 | ar9003_hw_attach_ops(ah); |
| 520 | else |
| 521 | ar9002_hw_attach_ops(ah); |
Luis R. Rodriguez | ee2bb46 | 2009-08-03 12:24:39 -0700 | [diff] [blame] | 522 | } |
| 523 | |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 524 | /* Called for all hardware families */ |
| 525 | static int __ath9k_hw_init(struct ath_hw *ah) |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 526 | { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 527 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | 95fafca | 2009-08-03 12:24:54 -0700 | [diff] [blame] | 528 | int r = 0; |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 529 | |
Senthil Balasubramanian | ac45c12 | 2010-12-22 21:14:20 +0530 | [diff] [blame] | 530 | ath9k_hw_read_revisions(ah); |
| 531 | |
Senthil Balasubramanian | 0a8d7cb | 2010-12-22 19:17:18 +0530 | [diff] [blame] | 532 | /* |
| 533 | * Read back AR_WA into a permanent copy and set bits 14 and 17. |
| 534 | * We need to do this to avoid RMW of this register. We cannot |
| 535 | * read the reg when chip is asleep. |
| 536 | */ |
| 537 | ah->WARegVal = REG_READ(ah, AR_WA); |
| 538 | ah->WARegVal |= (AR_WA_D3_L1_DISABLE | |
| 539 | AR_WA_ASPM_TIMER_BASED_DISABLE); |
| 540 | |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 541 | if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 542 | ath_err(common, "Couldn't reset chip\n"); |
Luis R. Rodriguez | 95fafca | 2009-08-03 12:24:54 -0700 | [diff] [blame] | 543 | return -EIO; |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 544 | } |
| 545 | |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 546 | if (AR_SREV_9462(ah)) |
Rajkumar Manoharan | eec353c | 2011-10-13 10:49:13 +0530 | [diff] [blame] | 547 | ah->WARegVal &= ~AR_WA_D3_L1_DISABLE; |
| 548 | |
Luis R. Rodriguez | bab1f62 | 2010-04-15 17:38:20 -0400 | [diff] [blame] | 549 | ath9k_hw_init_defaults(ah); |
| 550 | ath9k_hw_init_config(ah); |
| 551 | |
Luis R. Rodriguez | 8525f28 | 2010-04-15 17:38:19 -0400 | [diff] [blame] | 552 | ath9k_hw_attach_ops(ah); |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 553 | |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 554 | if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 555 | ath_err(common, "Couldn't wakeup chip\n"); |
Luis R. Rodriguez | 95fafca | 2009-08-03 12:24:54 -0700 | [diff] [blame] | 556 | return -EIO; |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 557 | } |
| 558 | |
Felix Fietkau | f3eef64 | 2012-03-14 16:40:25 +0100 | [diff] [blame] | 559 | if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) { |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 560 | if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI || |
John W. Linville | 4c85ab1 | 2010-07-28 10:06:35 -0400 | [diff] [blame] | 561 | ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) && |
| 562 | !ah->is_pciexpress)) { |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 563 | ah->config.serialize_regmode = |
| 564 | SER_REG_MODE_ON; |
| 565 | } else { |
| 566 | ah->config.serialize_regmode = |
| 567 | SER_REG_MODE_OFF; |
| 568 | } |
| 569 | } |
| 570 | |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 571 | ath_dbg(common, RESET, "serialize_regmode is %d\n", |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 572 | ah->config.serialize_regmode); |
| 573 | |
Luis R. Rodriguez | f4709fd | 2009-11-24 21:37:57 -0500 | [diff] [blame] | 574 | if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) |
| 575 | ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD >> 1; |
| 576 | else |
| 577 | ah->config.max_txtrig_level = MAX_TX_FIFO_THRESHOLD; |
| 578 | |
Felix Fietkau | 6da5a72 | 2010-12-12 00:51:12 +0100 | [diff] [blame] | 579 | switch (ah->hw_version.macVersion) { |
| 580 | case AR_SREV_VERSION_5416_PCI: |
| 581 | case AR_SREV_VERSION_5416_PCIE: |
| 582 | case AR_SREV_VERSION_9160: |
| 583 | case AR_SREV_VERSION_9100: |
| 584 | case AR_SREV_VERSION_9280: |
| 585 | case AR_SREV_VERSION_9285: |
| 586 | case AR_SREV_VERSION_9287: |
| 587 | case AR_SREV_VERSION_9271: |
| 588 | case AR_SREV_VERSION_9300: |
Gabor Juhos | 2c8e593 | 2011-06-21 11:23:21 +0200 | [diff] [blame] | 589 | case AR_SREV_VERSION_9330: |
Felix Fietkau | 6da5a72 | 2010-12-12 00:51:12 +0100 | [diff] [blame] | 590 | case AR_SREV_VERSION_9485: |
Vasanthakumar Thiagarajan | bca0468 | 2011-04-19 19:29:20 +0530 | [diff] [blame] | 591 | case AR_SREV_VERSION_9340: |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 592 | case AR_SREV_VERSION_9462: |
Felix Fietkau | 6da5a72 | 2010-12-12 00:51:12 +0100 | [diff] [blame] | 593 | break; |
| 594 | default: |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 595 | ath_err(common, |
| 596 | "Mac Chip Rev 0x%02x.%x is not supported by this driver\n", |
| 597 | ah->hw_version.macVersion, ah->hw_version.macRev); |
Luis R. Rodriguez | 95fafca | 2009-08-03 12:24:54 -0700 | [diff] [blame] | 598 | return -EOPNOTSUPP; |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 599 | } |
| 600 | |
Gabor Juhos | 2c8e593 | 2011-06-21 11:23:21 +0200 | [diff] [blame] | 601 | if (AR_SREV_9271(ah) || AR_SREV_9100(ah) || AR_SREV_9340(ah) || |
| 602 | AR_SREV_9330(ah)) |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 603 | ah->is_pciexpress = false; |
| 604 | |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 605 | ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID); |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 606 | ath9k_hw_init_cal_settings(ah); |
| 607 | |
| 608 | ah->ani_function = ATH9K_ANI_ALL; |
Felix Fietkau | 7a37081 | 2010-09-22 12:34:52 +0200 | [diff] [blame] | 609 | if (AR_SREV_9280_20_OR_LATER(ah) && !AR_SREV_9300_20_OR_LATER(ah)) |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 610 | ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL; |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 611 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
| 612 | ah->ani_function &= ~ATH9K_ANI_MRC_CCK; |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 613 | |
Nikolay Martynov | 4f17c48 | 2011-12-06 21:57:17 -0500 | [diff] [blame] | 614 | /* disable ANI for 9340 */ |
| 615 | if (AR_SREV_9340(ah)) |
Nikolay Martynov | 4279425 | 2011-12-02 22:39:16 -0500 | [diff] [blame] | 616 | ah->config.enable_ani = false; |
| 617 | |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 618 | ath9k_hw_init_mode_regs(ah); |
| 619 | |
Stanislaw Gruszka | 69ce674 | 2011-08-05 13:10:34 +0200 | [diff] [blame] | 620 | if (!ah->is_pciexpress) |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 621 | ath9k_hw_disablepcie(ah); |
| 622 | |
Luis R. Rodriguez | f637cfd | 2009-08-03 12:24:46 -0700 | [diff] [blame] | 623 | r = ath9k_hw_post_init(ah); |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 624 | if (r) |
Luis R. Rodriguez | 95fafca | 2009-08-03 12:24:54 -0700 | [diff] [blame] | 625 | return r; |
Luis R. Rodriguez | aa4058a | 2009-08-03 12:24:45 -0700 | [diff] [blame] | 626 | |
| 627 | ath9k_hw_init_mode_gain_regs(ah); |
Gabor Juhos | a9a29ce | 2009-11-27 12:01:35 +0100 | [diff] [blame] | 628 | r = ath9k_hw_fill_cap_info(ah); |
| 629 | if (r) |
| 630 | return r; |
| 631 | |
Stanislaw Gruszka | 69ce674 | 2011-08-05 13:10:34 +0200 | [diff] [blame] | 632 | if (ah->is_pciexpress) |
| 633 | ath9k_hw_aspm_init(ah); |
| 634 | |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 635 | r = ath9k_hw_init_macaddr(ah); |
| 636 | if (r) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 637 | ath_err(common, "Failed to initialize MAC address\n"); |
Luis R. Rodriguez | 95fafca | 2009-08-03 12:24:54 -0700 | [diff] [blame] | 638 | return r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 639 | } |
| 640 | |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 641 | if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 642 | ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 643 | else |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 644 | ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 645 | |
Gabor Juhos | 88e641d | 2011-06-21 11:23:30 +0200 | [diff] [blame] | 646 | if (AR_SREV_9330(ah)) |
| 647 | ah->bb_watchdog_timeout_ms = 85; |
| 648 | else |
| 649 | ah->bb_watchdog_timeout_ms = 25; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 650 | |
Luis R. Rodriguez | 211f585 | 2009-10-06 21:19:07 -0400 | [diff] [blame] | 651 | common->state = ATH_HW_INITIALIZED; |
| 652 | |
Luis R. Rodriguez | 4f3acf8 | 2009-08-03 12:24:36 -0700 | [diff] [blame] | 653 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 654 | } |
| 655 | |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 656 | int ath9k_hw_init(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 657 | { |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 658 | int ret; |
| 659 | struct ath_common *common = ath9k_hw_common(ah); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 660 | |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 661 | /* These are all the AR5008/AR9001/AR9002 hardware family of chipsets */ |
| 662 | switch (ah->hw_version.devid) { |
| 663 | case AR5416_DEVID_PCI: |
| 664 | case AR5416_DEVID_PCIE: |
| 665 | case AR5416_AR9100_DEVID: |
| 666 | case AR9160_DEVID_PCI: |
| 667 | case AR9280_DEVID_PCI: |
| 668 | case AR9280_DEVID_PCIE: |
| 669 | case AR9285_DEVID_PCIE: |
Senthil Balasubramanian | db3cc53 | 2010-04-15 17:38:18 -0400 | [diff] [blame] | 670 | case AR9287_DEVID_PCI: |
| 671 | case AR9287_DEVID_PCIE: |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 672 | case AR2427_DEVID_PCIE: |
Senthil Balasubramanian | db3cc53 | 2010-04-15 17:38:18 -0400 | [diff] [blame] | 673 | case AR9300_DEVID_PCIE: |
Vasanthakumar Thiagarajan | 3050c91 | 2010-12-06 04:27:36 -0800 | [diff] [blame] | 674 | case AR9300_DEVID_AR9485_PCIE: |
Gabor Juhos | 999a7a8 | 2011-06-21 11:23:52 +0200 | [diff] [blame] | 675 | case AR9300_DEVID_AR9330: |
Vasanthakumar Thiagarajan | bca0468 | 2011-04-19 19:29:20 +0530 | [diff] [blame] | 676 | case AR9300_DEVID_AR9340: |
Luis R. Rodriguez | 5a63ef0 | 2011-08-24 15:36:08 -0700 | [diff] [blame] | 677 | case AR9300_DEVID_AR9580: |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 678 | case AR9300_DEVID_AR9462: |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 679 | break; |
| 680 | default: |
| 681 | if (common->bus_ops->ath_bus_type == ATH_USB) |
| 682 | break; |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 683 | ath_err(common, "Hardware device ID 0x%04x not supported\n", |
| 684 | ah->hw_version.devid); |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 685 | return -EOPNOTSUPP; |
| 686 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 687 | |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 688 | ret = __ath9k_hw_init(ah); |
| 689 | if (ret) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 690 | ath_err(common, |
| 691 | "Unable to initialize hardware; initialization status: %d\n", |
| 692 | ret); |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 693 | return ret; |
| 694 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 695 | |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 696 | return 0; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 697 | } |
Luis R. Rodriguez | d70357d | 2010-04-15 17:38:06 -0400 | [diff] [blame] | 698 | EXPORT_SYMBOL(ath9k_hw_init); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 699 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 700 | static void ath9k_hw_init_qos(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 701 | { |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 702 | ENABLE_REGWRITE_BUFFER(ah); |
| 703 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 704 | REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa); |
| 705 | REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210); |
| 706 | |
| 707 | REG_WRITE(ah, AR_QOS_NO_ACK, |
| 708 | SM(2, AR_QOS_NO_ACK_TWO_BIT) | |
| 709 | SM(5, AR_QOS_NO_ACK_BIT_OFF) | |
| 710 | SM(0, AR_QOS_NO_ACK_BYTE_OFF)); |
| 711 | |
| 712 | REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL); |
| 713 | REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF); |
| 714 | REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF); |
| 715 | REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF); |
| 716 | REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 717 | |
| 718 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 719 | } |
| 720 | |
Senthil Balasubramanian | b84628e | 2011-04-22 11:32:12 +0530 | [diff] [blame] | 721 | u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah) |
Vivek Natarajan | b141581 | 2011-01-27 14:45:07 +0530 | [diff] [blame] | 722 | { |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 723 | REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK); |
| 724 | udelay(100); |
| 725 | REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK); |
| 726 | |
| 727 | while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) |
Vivek Natarajan | b141581 | 2011-01-27 14:45:07 +0530 | [diff] [blame] | 728 | udelay(100); |
Vivek Natarajan | b141581 | 2011-01-27 14:45:07 +0530 | [diff] [blame] | 729 | |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 730 | return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3; |
Vivek Natarajan | b141581 | 2011-01-27 14:45:07 +0530 | [diff] [blame] | 731 | } |
| 732 | EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc); |
| 733 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 734 | static void ath9k_hw_init_pll(struct ath_hw *ah, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 735 | struct ath9k_channel *chan) |
| 736 | { |
Vasanthakumar Thiagarajan | d09b17f | 2010-12-06 04:27:44 -0800 | [diff] [blame] | 737 | u32 pll; |
| 738 | |
Vivek Natarajan | 22983c3 | 2011-01-27 14:45:09 +0530 | [diff] [blame] | 739 | if (AR_SREV_9485(ah)) { |
Vivek Natarajan | 22983c3 | 2011-01-27 14:45:09 +0530 | [diff] [blame] | 740 | |
Vasanthakumar Thiagarajan | 3dfd7f6 | 2011-04-11 16:39:40 +0530 | [diff] [blame] | 741 | /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */ |
| 742 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, |
| 743 | AR_CH0_BB_DPLL2_PLL_PWD, 0x1); |
| 744 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, |
| 745 | AR_CH0_DPLL2_KD, 0x40); |
| 746 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, |
| 747 | AR_CH0_DPLL2_KI, 0x4); |
Vivek Natarajan | 22983c3 | 2011-01-27 14:45:09 +0530 | [diff] [blame] | 748 | |
Vasanthakumar Thiagarajan | 3dfd7f6 | 2011-04-11 16:39:40 +0530 | [diff] [blame] | 749 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1, |
| 750 | AR_CH0_BB_DPLL1_REFDIV, 0x5); |
| 751 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1, |
| 752 | AR_CH0_BB_DPLL1_NINI, 0x58); |
| 753 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1, |
| 754 | AR_CH0_BB_DPLL1_NFRAC, 0x0); |
| 755 | |
| 756 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, |
| 757 | AR_CH0_BB_DPLL2_OUTDIV, 0x1); |
| 758 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, |
| 759 | AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1); |
| 760 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, |
| 761 | AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1); |
| 762 | |
| 763 | /* program BB PLL phase_shift to 0x6 */ |
| 764 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3, |
| 765 | AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6); |
| 766 | |
| 767 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, |
| 768 | AR_CH0_BB_DPLL2_PLL_PWD, 0x0); |
Vivek Natarajan | 75e0351 | 2011-03-10 11:05:42 +0530 | [diff] [blame] | 769 | udelay(1000); |
Gabor Juhos | a5415d6 | 2011-06-21 11:23:29 +0200 | [diff] [blame] | 770 | } else if (AR_SREV_9330(ah)) { |
| 771 | u32 ddr_dpll2, pll_control2, kd; |
| 772 | |
| 773 | if (ah->is_clk_25mhz) { |
| 774 | ddr_dpll2 = 0x18e82f01; |
| 775 | pll_control2 = 0xe04a3d; |
| 776 | kd = 0x1d; |
| 777 | } else { |
| 778 | ddr_dpll2 = 0x19e82f01; |
| 779 | pll_control2 = 0x886666; |
| 780 | kd = 0x3d; |
| 781 | } |
| 782 | |
| 783 | /* program DDR PLL ki and kd value */ |
| 784 | REG_WRITE(ah, AR_CH0_DDR_DPLL2, ddr_dpll2); |
| 785 | |
| 786 | /* program DDR PLL phase_shift */ |
| 787 | REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3, |
| 788 | AR_CH0_DPLL3_PHASE_SHIFT, 0x1); |
| 789 | |
| 790 | REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c); |
| 791 | udelay(1000); |
| 792 | |
| 793 | /* program refdiv, nint, frac to RTC register */ |
| 794 | REG_WRITE(ah, AR_RTC_PLL_CONTROL2, pll_control2); |
| 795 | |
| 796 | /* program BB PLL kd and ki value */ |
| 797 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KD, kd); |
| 798 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2, AR_CH0_DPLL2_KI, 0x06); |
| 799 | |
| 800 | /* program BB PLL phase_shift */ |
| 801 | REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3, |
| 802 | AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1); |
Vasanthakumar Thiagarajan | 0b488ac | 2011-04-20 10:26:15 +0530 | [diff] [blame] | 803 | } else if (AR_SREV_9340(ah)) { |
| 804 | u32 regval, pll2_divint, pll2_divfrac, refdiv; |
| 805 | |
| 806 | REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c); |
| 807 | udelay(1000); |
| 808 | |
| 809 | REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16); |
| 810 | udelay(100); |
| 811 | |
| 812 | if (ah->is_clk_25mhz) { |
| 813 | pll2_divint = 0x54; |
| 814 | pll2_divfrac = 0x1eb85; |
| 815 | refdiv = 3; |
| 816 | } else { |
| 817 | pll2_divint = 88; |
| 818 | pll2_divfrac = 0; |
| 819 | refdiv = 5; |
| 820 | } |
| 821 | |
| 822 | regval = REG_READ(ah, AR_PHY_PLL_MODE); |
| 823 | regval |= (0x1 << 16); |
| 824 | REG_WRITE(ah, AR_PHY_PLL_MODE, regval); |
| 825 | udelay(100); |
| 826 | |
| 827 | REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) | |
| 828 | (pll2_divint << 18) | pll2_divfrac); |
| 829 | udelay(100); |
| 830 | |
| 831 | regval = REG_READ(ah, AR_PHY_PLL_MODE); |
| 832 | regval = (regval & 0x80071fff) | (0x1 << 30) | (0x1 << 13) | |
| 833 | (0x4 << 26) | (0x18 << 19); |
| 834 | REG_WRITE(ah, AR_PHY_PLL_MODE, regval); |
| 835 | REG_WRITE(ah, AR_PHY_PLL_MODE, |
| 836 | REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff); |
| 837 | udelay(1000); |
Vivek Natarajan | 22983c3 | 2011-01-27 14:45:09 +0530 | [diff] [blame] | 838 | } |
Vasanthakumar Thiagarajan | d09b17f | 2010-12-06 04:27:44 -0800 | [diff] [blame] | 839 | |
| 840 | pll = ath9k_hw_compute_pll_control(ah, chan); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 841 | |
Gabor Juhos | d03a66c | 2009-01-14 20:17:09 +0100 | [diff] [blame] | 842 | REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 843 | |
Gabor Juhos | a5415d6 | 2011-06-21 11:23:29 +0200 | [diff] [blame] | 844 | if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah)) |
Vasanthakumar Thiagarajan | 3dfd7f6 | 2011-04-11 16:39:40 +0530 | [diff] [blame] | 845 | udelay(1000); |
| 846 | |
Luis R. Rodriguez | c75724d | 2009-10-19 02:33:34 -0400 | [diff] [blame] | 847 | /* Switch the core clock for ar9271 to 117Mhz */ |
| 848 | if (AR_SREV_9271(ah)) { |
Sujith | 25e2ab1 | 2010-03-17 14:25:22 +0530 | [diff] [blame] | 849 | udelay(500); |
| 850 | REG_WRITE(ah, 0x50040, 0x304); |
Luis R. Rodriguez | c75724d | 2009-10-19 02:33:34 -0400 | [diff] [blame] | 851 | } |
| 852 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 853 | udelay(RTC_PLL_SETTLE_DELAY); |
| 854 | |
| 855 | REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK); |
Vasanthakumar Thiagarajan | 0b488ac | 2011-04-20 10:26:15 +0530 | [diff] [blame] | 856 | |
| 857 | if (AR_SREV_9340(ah)) { |
| 858 | if (ah->is_clk_25mhz) { |
| 859 | REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1); |
| 860 | REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7); |
| 861 | REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae); |
| 862 | } else { |
| 863 | REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1); |
| 864 | REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400); |
| 865 | REG_WRITE(ah, AR_SLP32_INC, 0x0001e800); |
| 866 | } |
| 867 | udelay(100); |
| 868 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 869 | } |
| 870 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 871 | static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah, |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 872 | enum nl80211_iftype opmode) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 873 | { |
Vasanthakumar Thiagarajan | 79d1d2b | 2011-04-19 19:29:19 +0530 | [diff] [blame] | 874 | u32 sync_default = AR_INTR_SYNC_DEFAULT; |
Pavel Roskin | 152d530 | 2010-03-31 18:05:37 -0400 | [diff] [blame] | 875 | u32 imr_reg = AR_IMR_TXERR | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 876 | AR_IMR_TXURN | |
| 877 | AR_IMR_RXERR | |
| 878 | AR_IMR_RXORN | |
| 879 | AR_IMR_BCNMISC; |
| 880 | |
Vasanthakumar Thiagarajan | 79d1d2b | 2011-04-19 19:29:19 +0530 | [diff] [blame] | 881 | if (AR_SREV_9340(ah)) |
| 882 | sync_default &= ~AR_INTR_SYNC_HOST1_FATAL; |
| 883 | |
Vasanthakumar Thiagarajan | 6686024 | 2010-04-15 17:39:07 -0400 | [diff] [blame] | 884 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 885 | imr_reg |= AR_IMR_RXOK_HP; |
| 886 | if (ah->config.rx_intr_mitigation) |
| 887 | imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR; |
| 888 | else |
| 889 | imr_reg |= AR_IMR_RXOK_LP; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 890 | |
Vasanthakumar Thiagarajan | 6686024 | 2010-04-15 17:39:07 -0400 | [diff] [blame] | 891 | } else { |
| 892 | if (ah->config.rx_intr_mitigation) |
| 893 | imr_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR; |
| 894 | else |
| 895 | imr_reg |= AR_IMR_RXOK; |
| 896 | } |
| 897 | |
| 898 | if (ah->config.tx_intr_mitigation) |
| 899 | imr_reg |= AR_IMR_TXINTM | AR_IMR_TXMINTR; |
| 900 | else |
| 901 | imr_reg |= AR_IMR_TXOK; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 902 | |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 903 | if (opmode == NL80211_IFTYPE_AP) |
Pavel Roskin | 152d530 | 2010-03-31 18:05:37 -0400 | [diff] [blame] | 904 | imr_reg |= AR_IMR_MIB; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 905 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 906 | ENABLE_REGWRITE_BUFFER(ah); |
| 907 | |
Pavel Roskin | 152d530 | 2010-03-31 18:05:37 -0400 | [diff] [blame] | 908 | REG_WRITE(ah, AR_IMR, imr_reg); |
Pavel Roskin | 74bad5c | 2010-02-23 18:15:27 -0500 | [diff] [blame] | 909 | ah->imrs2_reg |= AR_IMR_S2_GTT; |
| 910 | REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 911 | |
| 912 | if (!AR_SREV_9100(ah)) { |
| 913 | REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF); |
Vasanthakumar Thiagarajan | 79d1d2b | 2011-04-19 19:29:19 +0530 | [diff] [blame] | 914 | REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 915 | REG_WRITE(ah, AR_INTR_SYNC_MASK, 0); |
| 916 | } |
Vasanthakumar Thiagarajan | 6686024 | 2010-04-15 17:39:07 -0400 | [diff] [blame] | 917 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 918 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 919 | |
Vasanthakumar Thiagarajan | 6686024 | 2010-04-15 17:39:07 -0400 | [diff] [blame] | 920 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 921 | REG_WRITE(ah, AR_INTR_PRIO_ASYNC_ENABLE, 0); |
| 922 | REG_WRITE(ah, AR_INTR_PRIO_ASYNC_MASK, 0); |
| 923 | REG_WRITE(ah, AR_INTR_PRIO_SYNC_ENABLE, 0); |
| 924 | REG_WRITE(ah, AR_INTR_PRIO_SYNC_MASK, 0); |
| 925 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 926 | } |
| 927 | |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 928 | static void ath9k_hw_set_sifs_time(struct ath_hw *ah, u32 us) |
| 929 | { |
| 930 | u32 val = ath9k_hw_mac_to_clks(ah, us - 2); |
| 931 | val = min(val, (u32) 0xFFFF); |
| 932 | REG_WRITE(ah, AR_D_GBL_IFS_SIFS, val); |
| 933 | } |
| 934 | |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 935 | static void ath9k_hw_setslottime(struct ath_hw *ah, u32 us) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 936 | { |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 937 | u32 val = ath9k_hw_mac_to_clks(ah, us); |
| 938 | val = min(val, (u32) 0xFFFF); |
| 939 | REG_WRITE(ah, AR_D_GBL_IFS_SLOT, val); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 940 | } |
| 941 | |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 942 | static void ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 943 | { |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 944 | u32 val = ath9k_hw_mac_to_clks(ah, us); |
| 945 | val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_ACK)); |
| 946 | REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_ACK, val); |
| 947 | } |
| 948 | |
| 949 | static void ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us) |
| 950 | { |
| 951 | u32 val = ath9k_hw_mac_to_clks(ah, us); |
| 952 | val = min(val, (u32) MS(0xFFFFFFFF, AR_TIME_OUT_CTS)); |
| 953 | REG_RMW_FIELD(ah, AR_TIME_OUT, AR_TIME_OUT_CTS, val); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 954 | } |
| 955 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 956 | static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 957 | { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 958 | if (tu > 0xFFFF) { |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 959 | ath_dbg(ath9k_hw_common(ah), XMIT, "bad global tx timeout %u\n", |
| 960 | tu); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 961 | ah->globaltxtimeout = (u32) -1; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 962 | return false; |
| 963 | } else { |
| 964 | REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 965 | ah->globaltxtimeout = tu; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 966 | return true; |
| 967 | } |
| 968 | } |
| 969 | |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 970 | void ath9k_hw_init_global_settings(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 971 | { |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 972 | struct ath_common *common = ath9k_hw_common(ah); |
| 973 | struct ieee80211_conf *conf = &common->hw->conf; |
| 974 | const struct ath9k_channel *chan = ah->curchan; |
Felix Fietkau | adb5066 | 2011-08-28 01:52:10 +0200 | [diff] [blame] | 975 | int acktimeout, ctstimeout; |
Felix Fietkau | e239d85 | 2010-01-15 02:34:58 +0100 | [diff] [blame] | 976 | int slottime; |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 977 | int sifstime; |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 978 | int rx_lat = 0, tx_lat = 0, eifs = 0; |
| 979 | u32 reg; |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 980 | |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 981 | ath_dbg(ath9k_hw_common(ah), RESET, "ah->misc_mode 0x%x\n", |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 982 | ah->misc_mode); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 983 | |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 984 | if (!chan) |
| 985 | return; |
| 986 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 987 | if (ah->misc_mode != 0) |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 988 | REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode); |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 989 | |
Rajkumar Manoharan | 81a91d5 | 2011-08-31 10:47:30 +0530 | [diff] [blame] | 990 | if (IS_CHAN_A_FAST_CLOCK(ah, chan)) |
| 991 | rx_lat = 41; |
| 992 | else |
| 993 | rx_lat = 37; |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 994 | tx_lat = 54; |
| 995 | |
| 996 | if (IS_CHAN_HALF_RATE(chan)) { |
| 997 | eifs = 175; |
| 998 | rx_lat *= 2; |
| 999 | tx_lat *= 2; |
| 1000 | if (IS_CHAN_A_FAST_CLOCK(ah, chan)) |
| 1001 | tx_lat += 11; |
| 1002 | |
| 1003 | slottime = 13; |
| 1004 | sifstime = 32; |
| 1005 | } else if (IS_CHAN_QUARTER_RATE(chan)) { |
| 1006 | eifs = 340; |
Rajkumar Manoharan | 81a91d5 | 2011-08-31 10:47:30 +0530 | [diff] [blame] | 1007 | rx_lat = (rx_lat * 4) - 1; |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 1008 | tx_lat *= 4; |
| 1009 | if (IS_CHAN_A_FAST_CLOCK(ah, chan)) |
| 1010 | tx_lat += 22; |
| 1011 | |
| 1012 | slottime = 21; |
| 1013 | sifstime = 64; |
| 1014 | } else { |
Rajkumar Manoharan | a7be039 | 2011-08-27 12:13:21 +0530 | [diff] [blame] | 1015 | if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) { |
| 1016 | eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO; |
| 1017 | reg = AR_USEC_ASYNC_FIFO; |
| 1018 | } else { |
| 1019 | eifs = REG_READ(ah, AR_D_GBL_IFS_EIFS)/ |
| 1020 | common->clockrate; |
| 1021 | reg = REG_READ(ah, AR_USEC); |
| 1022 | } |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 1023 | rx_lat = MS(reg, AR_USEC_RX_LAT); |
| 1024 | tx_lat = MS(reg, AR_USEC_TX_LAT); |
| 1025 | |
| 1026 | slottime = ah->slottime; |
| 1027 | if (IS_CHAN_5GHZ(chan)) |
| 1028 | sifstime = 16; |
| 1029 | else |
| 1030 | sifstime = 10; |
| 1031 | } |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 1032 | |
Felix Fietkau | e239d85 | 2010-01-15 02:34:58 +0100 | [diff] [blame] | 1033 | /* As defined by IEEE 802.11-2007 17.3.8.6 */ |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 1034 | acktimeout = slottime + sifstime + 3 * ah->coverage_class; |
Felix Fietkau | adb5066 | 2011-08-28 01:52:10 +0200 | [diff] [blame] | 1035 | ctstimeout = acktimeout; |
Felix Fietkau | 42c4568 | 2010-02-11 18:07:19 +0100 | [diff] [blame] | 1036 | |
| 1037 | /* |
| 1038 | * Workaround for early ACK timeouts, add an offset to match the |
Felix Fietkau | 55a2bb4 | 2012-02-05 21:15:18 +0100 | [diff] [blame] | 1039 | * initval's 64us ack timeout value. Use 48us for the CTS timeout. |
Felix Fietkau | 42c4568 | 2010-02-11 18:07:19 +0100 | [diff] [blame] | 1040 | * This was initially only meant to work around an issue with delayed |
| 1041 | * BA frames in some implementations, but it has been found to fix ACK |
| 1042 | * timeout issues in other cases as well. |
| 1043 | */ |
Felix Fietkau | 55a2bb4 | 2012-02-05 21:15:18 +0100 | [diff] [blame] | 1044 | if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ) { |
Felix Fietkau | 42c4568 | 2010-02-11 18:07:19 +0100 | [diff] [blame] | 1045 | acktimeout += 64 - sifstime - ah->slottime; |
Felix Fietkau | 55a2bb4 | 2012-02-05 21:15:18 +0100 | [diff] [blame] | 1046 | ctstimeout += 48 - sifstime - ah->slottime; |
| 1047 | } |
| 1048 | |
Felix Fietkau | 42c4568 | 2010-02-11 18:07:19 +0100 | [diff] [blame] | 1049 | |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 1050 | ath9k_hw_set_sifs_time(ah, sifstime); |
| 1051 | ath9k_hw_setslottime(ah, slottime); |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 1052 | ath9k_hw_set_ack_timeout(ah, acktimeout); |
Felix Fietkau | adb5066 | 2011-08-28 01:52:10 +0200 | [diff] [blame] | 1053 | ath9k_hw_set_cts_timeout(ah, ctstimeout); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1054 | if (ah->globaltxtimeout != (u32) -1) |
| 1055 | ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout); |
Felix Fietkau | b6ba41b | 2011-07-09 11:12:50 +0700 | [diff] [blame] | 1056 | |
| 1057 | REG_WRITE(ah, AR_D_GBL_IFS_EIFS, ath9k_hw_mac_to_clks(ah, eifs)); |
| 1058 | REG_RMW(ah, AR_USEC, |
| 1059 | (common->clockrate - 1) | |
| 1060 | SM(rx_lat, AR_USEC_RX_LAT) | |
| 1061 | SM(tx_lat, AR_USEC_TX_LAT), |
| 1062 | AR_USEC_TX_LAT | AR_USEC_RX_LAT | AR_USEC_USEC); |
| 1063 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1064 | } |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 1065 | EXPORT_SYMBOL(ath9k_hw_init_global_settings); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1066 | |
Sujith | 285f2dd | 2010-01-08 10:36:07 +0530 | [diff] [blame] | 1067 | void ath9k_hw_deinit(struct ath_hw *ah) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1068 | { |
Luis R. Rodriguez | 211f585 | 2009-10-06 21:19:07 -0400 | [diff] [blame] | 1069 | struct ath_common *common = ath9k_hw_common(ah); |
| 1070 | |
Sujith | 736b3a2 | 2010-03-17 14:25:24 +0530 | [diff] [blame] | 1071 | if (common->state < ATH_HW_INITIALIZED) |
Luis R. Rodriguez | 211f585 | 2009-10-06 21:19:07 -0400 | [diff] [blame] | 1072 | goto free_hw; |
| 1073 | |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 1074 | ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); |
Luis R. Rodriguez | 211f585 | 2009-10-06 21:19:07 -0400 | [diff] [blame] | 1075 | |
| 1076 | free_hw: |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1077 | ath9k_hw_rf_free_ext_banks(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1078 | } |
Sujith | 285f2dd | 2010-01-08 10:36:07 +0530 | [diff] [blame] | 1079 | EXPORT_SYMBOL(ath9k_hw_deinit); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1080 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1081 | /*******/ |
| 1082 | /* INI */ |
| 1083 | /*******/ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1084 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1085 | u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan) |
Bob Copeland | 3a702e4 | 2009-03-30 22:30:29 -0400 | [diff] [blame] | 1086 | { |
| 1087 | u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band); |
| 1088 | |
| 1089 | if (IS_CHAN_B(chan)) |
| 1090 | ctl |= CTL_11B; |
| 1091 | else if (IS_CHAN_G(chan)) |
| 1092 | ctl |= CTL_11G; |
| 1093 | else |
| 1094 | ctl |= CTL_11A; |
| 1095 | |
| 1096 | return ctl; |
| 1097 | } |
| 1098 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1099 | /****************************************/ |
| 1100 | /* Reset and Channel Switching Routines */ |
| 1101 | /****************************************/ |
| 1102 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1103 | static inline void ath9k_hw_set_dma(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1104 | { |
Felix Fietkau | 57b3222 | 2010-04-15 17:39:22 -0400 | [diff] [blame] | 1105 | struct ath_common *common = ath9k_hw_common(ah); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1106 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1107 | ENABLE_REGWRITE_BUFFER(ah); |
| 1108 | |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1109 | /* |
| 1110 | * set AHB_MODE not to do cacheline prefetches |
| 1111 | */ |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1112 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
| 1113 | REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1114 | |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1115 | /* |
| 1116 | * let mac dma reads be in 128 byte chunks |
| 1117 | */ |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1118 | REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1119 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1120 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1121 | |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1122 | /* |
| 1123 | * Restore TX Trigger Level to its pre-reset value. |
| 1124 | * The initial value depends on whether aggregation is enabled, and is |
| 1125 | * adjusted whenever underruns are detected. |
| 1126 | */ |
Felix Fietkau | 57b3222 | 2010-04-15 17:39:22 -0400 | [diff] [blame] | 1127 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
| 1128 | REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1129 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1130 | ENABLE_REGWRITE_BUFFER(ah); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1131 | |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1132 | /* |
| 1133 | * let mac dma writes be in 128 byte chunks |
| 1134 | */ |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1135 | REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1136 | |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1137 | /* |
| 1138 | * Setup receive FIFO threshold to hold off TX activities |
| 1139 | */ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1140 | REG_WRITE(ah, AR_RXFIFO_CFG, 0x200); |
| 1141 | |
Felix Fietkau | 57b3222 | 2010-04-15 17:39:22 -0400 | [diff] [blame] | 1142 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 1143 | REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_HP, 0x1); |
| 1144 | REG_RMW_FIELD(ah, AR_RXBP_THRESH, AR_RXBP_THRESH_LP, 0x1); |
| 1145 | |
| 1146 | ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize - |
| 1147 | ah->caps.rx_status_len); |
| 1148 | } |
| 1149 | |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1150 | /* |
| 1151 | * reduce the number of usable entries in PCU TXBUF to avoid |
| 1152 | * wrap around issues. |
| 1153 | */ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1154 | if (AR_SREV_9285(ah)) { |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1155 | /* For AR9285 the number of Fifos are reduced to half. |
| 1156 | * So set the usable tx buf size also to half to |
| 1157 | * avoid data/delimiter underruns |
| 1158 | */ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1159 | REG_WRITE(ah, AR_PCU_TXBUF_CTRL, |
| 1160 | AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE); |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1161 | } else if (!AR_SREV_9271(ah)) { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1162 | REG_WRITE(ah, AR_PCU_TXBUF_CTRL, |
| 1163 | AR_PCU_TXBUF_CTRL_USABLE_SIZE); |
| 1164 | } |
Vasanthakumar Thiagarajan | 744d402 | 2010-04-15 17:39:27 -0400 | [diff] [blame] | 1165 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1166 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1167 | |
Vasanthakumar Thiagarajan | 744d402 | 2010-04-15 17:39:27 -0400 | [diff] [blame] | 1168 | if (AR_SREV_9300_20_OR_LATER(ah)) |
| 1169 | ath9k_hw_reset_txstatus_ring(ah); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1170 | } |
| 1171 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1172 | static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1173 | { |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1174 | u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC; |
| 1175 | u32 set = AR_STA_ID1_KSRCH_MODE; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1176 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1177 | switch (opmode) { |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 1178 | case NL80211_IFTYPE_ADHOC: |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 1179 | case NL80211_IFTYPE_MESH_POINT: |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1180 | set |= AR_STA_ID1_ADHOC; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1181 | REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION); |
| 1182 | break; |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1183 | case NL80211_IFTYPE_AP: |
| 1184 | set |= AR_STA_ID1_STA_AP; |
| 1185 | /* fall through */ |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 1186 | case NL80211_IFTYPE_STATION: |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1187 | REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1188 | break; |
Rajkumar Manoharan | 5f841b4 | 2010-10-27 18:31:15 +0530 | [diff] [blame] | 1189 | default: |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1190 | if (!ah->is_monitoring) |
| 1191 | set = 0; |
Rajkumar Manoharan | 5f841b4 | 2010-10-27 18:31:15 +0530 | [diff] [blame] | 1192 | break; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1193 | } |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1194 | REG_RMW(ah, AR_STA_ID1, set, mask); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1195 | } |
| 1196 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1197 | void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled, |
| 1198 | u32 *coef_mantissa, u32 *coef_exponent) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1199 | { |
| 1200 | u32 coef_exp, coef_man; |
| 1201 | |
| 1202 | for (coef_exp = 31; coef_exp > 0; coef_exp--) |
| 1203 | if ((coef_scaled >> coef_exp) & 0x1) |
| 1204 | break; |
| 1205 | |
| 1206 | coef_exp = 14 - (coef_exp - COEF_SCALE_S); |
| 1207 | |
| 1208 | coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1)); |
| 1209 | |
| 1210 | *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp); |
| 1211 | *coef_exponent = coef_exp - 16; |
| 1212 | } |
| 1213 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1214 | static bool ath9k_hw_set_reset(struct ath_hw *ah, int type) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1215 | { |
| 1216 | u32 rst_flags; |
| 1217 | u32 tmpReg; |
| 1218 | |
Sujith | 7076849 | 2009-02-16 13:23:12 +0530 | [diff] [blame] | 1219 | if (AR_SREV_9100(ah)) { |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1220 | REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK, |
| 1221 | AR_RTC_DERIVED_CLK_PERIOD, 1); |
Sujith | 7076849 | 2009-02-16 13:23:12 +0530 | [diff] [blame] | 1222 | (void)REG_READ(ah, AR_RTC_DERIVED_CLK); |
| 1223 | } |
| 1224 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1225 | ENABLE_REGWRITE_BUFFER(ah); |
| 1226 | |
Luis R. Rodriguez | 9a658d2 | 2010-06-21 18:38:47 -0400 | [diff] [blame] | 1227 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 1228 | REG_WRITE(ah, AR_WA, ah->WARegVal); |
| 1229 | udelay(10); |
| 1230 | } |
| 1231 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1232 | REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN | |
| 1233 | AR_RTC_FORCE_WAKE_ON_INT); |
| 1234 | |
| 1235 | if (AR_SREV_9100(ah)) { |
| 1236 | rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD | |
| 1237 | AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET; |
| 1238 | } else { |
| 1239 | tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE); |
| 1240 | if (tmpReg & |
| 1241 | (AR_INTR_SYNC_LOCAL_TIMEOUT | |
| 1242 | AR_INTR_SYNC_RADM_CPL_TIMEOUT)) { |
Luis R. Rodriguez | 42d5bc3 | 2010-04-15 17:38:12 -0400 | [diff] [blame] | 1243 | u32 val; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1244 | REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0); |
Luis R. Rodriguez | 42d5bc3 | 2010-04-15 17:38:12 -0400 | [diff] [blame] | 1245 | |
| 1246 | val = AR_RC_HOSTIF; |
| 1247 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
| 1248 | val |= AR_RC_AHB; |
| 1249 | REG_WRITE(ah, AR_RC, val); |
| 1250 | |
| 1251 | } else if (!AR_SREV_9300_20_OR_LATER(ah)) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1252 | REG_WRITE(ah, AR_RC, AR_RC_AHB); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1253 | |
| 1254 | rst_flags = AR_RTC_RC_MAC_WARM; |
| 1255 | if (type == ATH9K_RESET_COLD) |
| 1256 | rst_flags |= AR_RTC_RC_MAC_COLD; |
| 1257 | } |
| 1258 | |
Gabor Juhos | 7d95847c | 2011-06-21 11:23:51 +0200 | [diff] [blame] | 1259 | if (AR_SREV_9330(ah)) { |
| 1260 | int npend = 0; |
| 1261 | int i; |
| 1262 | |
| 1263 | /* AR9330 WAR: |
| 1264 | * call external reset function to reset WMAC if: |
| 1265 | * - doing a cold reset |
| 1266 | * - we have pending frames in the TX queues |
| 1267 | */ |
| 1268 | |
| 1269 | for (i = 0; i < AR_NUM_QCU; i++) { |
| 1270 | npend = ath9k_hw_numtxpending(ah, i); |
| 1271 | if (npend) |
| 1272 | break; |
| 1273 | } |
| 1274 | |
| 1275 | if (ah->external_reset && |
| 1276 | (npend || type == ATH9K_RESET_COLD)) { |
| 1277 | int reset_err = 0; |
| 1278 | |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 1279 | ath_dbg(ath9k_hw_common(ah), RESET, |
Gabor Juhos | 7d95847c | 2011-06-21 11:23:51 +0200 | [diff] [blame] | 1280 | "reset MAC via external reset\n"); |
| 1281 | |
| 1282 | reset_err = ah->external_reset(); |
| 1283 | if (reset_err) { |
| 1284 | ath_err(ath9k_hw_common(ah), |
| 1285 | "External reset failed, err=%d\n", |
| 1286 | reset_err); |
| 1287 | return false; |
| 1288 | } |
| 1289 | |
| 1290 | REG_WRITE(ah, AR_RTC_RESET, 1); |
| 1291 | } |
| 1292 | } |
| 1293 | |
Gabor Juhos | d03a66c | 2009-01-14 20:17:09 +0100 | [diff] [blame] | 1294 | REG_WRITE(ah, AR_RTC_RC, rst_flags); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1295 | |
| 1296 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1297 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1298 | udelay(50); |
| 1299 | |
Gabor Juhos | d03a66c | 2009-01-14 20:17:09 +0100 | [diff] [blame] | 1300 | REG_WRITE(ah, AR_RTC_RC, 0); |
Sujith | 0caa7b1 | 2009-02-16 13:23:20 +0530 | [diff] [blame] | 1301 | if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) { |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 1302 | ath_dbg(ath9k_hw_common(ah), RESET, "RTC stuck in MAC reset\n"); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1303 | return false; |
| 1304 | } |
| 1305 | |
| 1306 | if (!AR_SREV_9100(ah)) |
| 1307 | REG_WRITE(ah, AR_RC, 0); |
| 1308 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1309 | if (AR_SREV_9100(ah)) |
| 1310 | udelay(50); |
| 1311 | |
| 1312 | return true; |
| 1313 | } |
| 1314 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1315 | static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1316 | { |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1317 | ENABLE_REGWRITE_BUFFER(ah); |
| 1318 | |
Luis R. Rodriguez | 9a658d2 | 2010-06-21 18:38:47 -0400 | [diff] [blame] | 1319 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 1320 | REG_WRITE(ah, AR_WA, ah->WARegVal); |
| 1321 | udelay(10); |
| 1322 | } |
| 1323 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1324 | REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN | |
| 1325 | AR_RTC_FORCE_WAKE_ON_INT); |
| 1326 | |
Luis R. Rodriguez | 42d5bc3 | 2010-04-15 17:38:12 -0400 | [diff] [blame] | 1327 | if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah)) |
Vasanthakumar Thiagarajan | 1c29ce6 | 2009-08-31 17:48:36 +0530 | [diff] [blame] | 1328 | REG_WRITE(ah, AR_RC, AR_RC_AHB); |
| 1329 | |
Gabor Juhos | d03a66c | 2009-01-14 20:17:09 +0100 | [diff] [blame] | 1330 | REG_WRITE(ah, AR_RTC_RESET, 0); |
Vasanthakumar Thiagarajan | 1c29ce6 | 2009-08-31 17:48:36 +0530 | [diff] [blame] | 1331 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1332 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1333 | |
Senthil Balasubramanian | 84e2169 | 2010-04-15 17:38:30 -0400 | [diff] [blame] | 1334 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
| 1335 | udelay(2); |
| 1336 | |
| 1337 | if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah)) |
Vasanthakumar Thiagarajan | 1c29ce6 | 2009-08-31 17:48:36 +0530 | [diff] [blame] | 1338 | REG_WRITE(ah, AR_RC, 0); |
| 1339 | |
Gabor Juhos | d03a66c | 2009-01-14 20:17:09 +0100 | [diff] [blame] | 1340 | REG_WRITE(ah, AR_RTC_RESET, 1); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1341 | |
| 1342 | if (!ath9k_hw_wait(ah, |
| 1343 | AR_RTC_STATUS, |
| 1344 | AR_RTC_STATUS_M, |
Sujith | 0caa7b1 | 2009-02-16 13:23:20 +0530 | [diff] [blame] | 1345 | AR_RTC_STATUS_ON, |
| 1346 | AH_WAIT_TIMEOUT)) { |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 1347 | ath_dbg(ath9k_hw_common(ah), RESET, "RTC not waking up\n"); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1348 | return false; |
| 1349 | } |
| 1350 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1351 | return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM); |
| 1352 | } |
| 1353 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1354 | static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1355 | { |
Mohammed Shafi Shajakhan | 7a9233f | 2011-11-30 10:41:25 +0530 | [diff] [blame] | 1356 | bool ret = false; |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 1357 | |
Luis R. Rodriguez | 9a658d2 | 2010-06-21 18:38:47 -0400 | [diff] [blame] | 1358 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 1359 | REG_WRITE(ah, AR_WA, ah->WARegVal); |
| 1360 | udelay(10); |
| 1361 | } |
| 1362 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1363 | REG_WRITE(ah, AR_RTC_FORCE_WAKE, |
| 1364 | AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT); |
| 1365 | |
| 1366 | switch (type) { |
| 1367 | case ATH9K_RESET_POWER_ON: |
Mohammed Shafi Shajakhan | 7a9233f | 2011-11-30 10:41:25 +0530 | [diff] [blame] | 1368 | ret = ath9k_hw_set_reset_power_on(ah); |
| 1369 | break; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1370 | case ATH9K_RESET_WARM: |
| 1371 | case ATH9K_RESET_COLD: |
Mohammed Shafi Shajakhan | 7a9233f | 2011-11-30 10:41:25 +0530 | [diff] [blame] | 1372 | ret = ath9k_hw_set_reset(ah, type); |
| 1373 | break; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1374 | default: |
Mohammed Shafi Shajakhan | 7a9233f | 2011-11-30 10:41:25 +0530 | [diff] [blame] | 1375 | break; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1376 | } |
Mohammed Shafi Shajakhan | 7a9233f | 2011-11-30 10:41:25 +0530 | [diff] [blame] | 1377 | |
| 1378 | if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) |
| 1379 | REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2); |
| 1380 | |
| 1381 | return ret; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1382 | } |
| 1383 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1384 | static bool ath9k_hw_chip_reset(struct ath_hw *ah, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1385 | struct ath9k_channel *chan) |
| 1386 | { |
Felix Fietkau | 9c083af | 2012-03-03 15:17:02 +0100 | [diff] [blame] | 1387 | int reset_type = ATH9K_RESET_WARM; |
| 1388 | |
| 1389 | if (AR_SREV_9280(ah)) { |
| 1390 | if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) |
| 1391 | reset_type = ATH9K_RESET_POWER_ON; |
| 1392 | else |
| 1393 | reset_type = ATH9K_RESET_COLD; |
| 1394 | } |
| 1395 | |
| 1396 | if (!ath9k_hw_set_reset_reg(ah, reset_type)) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1397 | return false; |
| 1398 | |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 1399 | if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1400 | return false; |
| 1401 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1402 | ah->chip_fullsleep = false; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1403 | ath9k_hw_init_pll(ah, chan); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1404 | ath9k_hw_set_rfmode(ah, chan); |
| 1405 | |
| 1406 | return true; |
| 1407 | } |
| 1408 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1409 | static bool ath9k_hw_channel_change(struct ath_hw *ah, |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 1410 | struct ath9k_channel *chan) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1411 | { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 1412 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1413 | u32 qnum; |
Luis R. Rodriguez | 0a3b7ba | 2009-10-19 02:33:40 -0400 | [diff] [blame] | 1414 | int r; |
Rajkumar Manoharan | 5f0c04e | 2011-10-13 11:00:35 +0530 | [diff] [blame] | 1415 | bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA); |
| 1416 | bool band_switch, mode_diff; |
| 1417 | u8 ini_reloaded; |
| 1418 | |
| 1419 | band_switch = (chan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ)) != |
| 1420 | (ah->curchan->channelFlags & (CHANNEL_2GHZ | |
| 1421 | CHANNEL_5GHZ)); |
| 1422 | mode_diff = (chan->chanmode != ah->curchan->chanmode); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1423 | |
| 1424 | for (qnum = 0; qnum < AR_NUM_QCU; qnum++) { |
| 1425 | if (ath9k_hw_numtxpending(ah, qnum)) { |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 1426 | ath_dbg(common, QUEUE, |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 1427 | "Transmit frames pending on queue %d\n", qnum); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1428 | return false; |
| 1429 | } |
| 1430 | } |
| 1431 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1432 | if (!ath9k_hw_rfbus_req(ah)) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 1433 | ath_err(common, "Could not kill baseband RX\n"); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1434 | return false; |
| 1435 | } |
| 1436 | |
Rajkumar Manoharan | 5f0c04e | 2011-10-13 11:00:35 +0530 | [diff] [blame] | 1437 | if (edma && (band_switch || mode_diff)) { |
| 1438 | ath9k_hw_mark_phy_inactive(ah); |
| 1439 | udelay(5); |
| 1440 | |
| 1441 | ath9k_hw_init_pll(ah, NULL); |
| 1442 | |
| 1443 | if (ath9k_hw_fast_chan_change(ah, chan, &ini_reloaded)) { |
| 1444 | ath_err(common, "Failed to do fast channel change\n"); |
| 1445 | return false; |
| 1446 | } |
| 1447 | } |
| 1448 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1449 | ath9k_hw_set_channel_regs(ah, chan); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1450 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1451 | r = ath9k_hw_rf_set_freq(ah, chan); |
Luis R. Rodriguez | 0a3b7ba | 2009-10-19 02:33:40 -0400 | [diff] [blame] | 1452 | if (r) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 1453 | ath_err(common, "Failed to set channel\n"); |
Luis R. Rodriguez | 0a3b7ba | 2009-10-19 02:33:40 -0400 | [diff] [blame] | 1454 | return false; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1455 | } |
Felix Fietkau | dfdac8a | 2010-10-08 22:13:51 +0200 | [diff] [blame] | 1456 | ath9k_hw_set_clockrate(ah); |
Felix Fietkau | ca2c68c | 2011-10-08 20:06:20 +0200 | [diff] [blame] | 1457 | ath9k_hw_apply_txpower(ah, chan); |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1458 | ath9k_hw_rfbus_done(ah); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1459 | |
| 1460 | if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan)) |
| 1461 | ath9k_hw_set_delta_slope(ah, chan); |
| 1462 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1463 | ath9k_hw_spur_mitigate_freq(ah, chan); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1464 | |
Rajkumar Manoharan | 5f0c04e | 2011-10-13 11:00:35 +0530 | [diff] [blame] | 1465 | if (edma && (band_switch || mode_diff)) { |
Rajkumar Manoharan | a126ff5 | 2011-10-13 11:00:42 +0530 | [diff] [blame] | 1466 | ah->ah_flags |= AH_FASTCC; |
Rajkumar Manoharan | 5f0c04e | 2011-10-13 11:00:35 +0530 | [diff] [blame] | 1467 | if (band_switch || ini_reloaded) |
| 1468 | ah->eep_ops->set_board_values(ah, chan); |
| 1469 | |
| 1470 | ath9k_hw_init_bb(ah, chan); |
| 1471 | |
| 1472 | if (band_switch || ini_reloaded) |
| 1473 | ath9k_hw_init_cal(ah, chan); |
Rajkumar Manoharan | a126ff5 | 2011-10-13 11:00:42 +0530 | [diff] [blame] | 1474 | ah->ah_flags &= ~AH_FASTCC; |
Rajkumar Manoharan | 5f0c04e | 2011-10-13 11:00:35 +0530 | [diff] [blame] | 1475 | } |
| 1476 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1477 | return true; |
| 1478 | } |
| 1479 | |
Felix Fietkau | 691680b | 2011-03-19 13:55:38 +0100 | [diff] [blame] | 1480 | static void ath9k_hw_apply_gpio_override(struct ath_hw *ah) |
| 1481 | { |
| 1482 | u32 gpio_mask = ah->gpio_mask; |
| 1483 | int i; |
| 1484 | |
| 1485 | for (i = 0; gpio_mask; i++, gpio_mask >>= 1) { |
| 1486 | if (!(gpio_mask & 1)) |
| 1487 | continue; |
| 1488 | |
| 1489 | ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
| 1490 | ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i))); |
| 1491 | } |
| 1492 | } |
| 1493 | |
Rajkumar Manoharan | 01e1891 | 2012-03-15 05:34:27 +0530 | [diff] [blame^] | 1494 | static bool ath9k_hw_check_dcs(u32 dma_dbg, u32 num_dcu_states, |
| 1495 | int *hang_state, int *hang_pos) |
| 1496 | { |
| 1497 | static u32 dcu_chain_state[] = {5, 6, 9}; /* DCU chain stuck states */ |
| 1498 | u32 chain_state, dcs_pos, i; |
| 1499 | |
| 1500 | for (dcs_pos = 0; dcs_pos < num_dcu_states; dcs_pos++) { |
| 1501 | chain_state = (dma_dbg >> (5 * dcs_pos)) & 0x1f; |
| 1502 | for (i = 0; i < 3; i++) { |
| 1503 | if (chain_state == dcu_chain_state[i]) { |
| 1504 | *hang_state = chain_state; |
| 1505 | *hang_pos = dcs_pos; |
| 1506 | return true; |
| 1507 | } |
| 1508 | } |
| 1509 | } |
| 1510 | return false; |
| 1511 | } |
| 1512 | |
| 1513 | #define DCU_COMPLETE_STATE 1 |
| 1514 | #define DCU_COMPLETE_STATE_MASK 0x3 |
| 1515 | #define NUM_STATUS_READS 50 |
| 1516 | static bool ath9k_hw_detect_mac_hang(struct ath_hw *ah) |
| 1517 | { |
| 1518 | u32 chain_state, comp_state, dcs_reg = AR_DMADBG_4; |
| 1519 | u32 i, hang_pos, hang_state, num_state = 6; |
| 1520 | |
| 1521 | comp_state = REG_READ(ah, AR_DMADBG_6); |
| 1522 | |
| 1523 | if ((comp_state & DCU_COMPLETE_STATE_MASK) != DCU_COMPLETE_STATE) { |
| 1524 | ath_dbg(ath9k_hw_common(ah), RESET, |
| 1525 | "MAC Hang signature not found at DCU complete\n"); |
| 1526 | return false; |
| 1527 | } |
| 1528 | |
| 1529 | chain_state = REG_READ(ah, dcs_reg); |
| 1530 | if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos)) |
| 1531 | goto hang_check_iter; |
| 1532 | |
| 1533 | dcs_reg = AR_DMADBG_5; |
| 1534 | num_state = 4; |
| 1535 | chain_state = REG_READ(ah, dcs_reg); |
| 1536 | if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos)) |
| 1537 | goto hang_check_iter; |
| 1538 | |
| 1539 | ath_dbg(ath9k_hw_common(ah), RESET, |
| 1540 | "MAC Hang signature 1 not found\n"); |
| 1541 | return false; |
| 1542 | |
| 1543 | hang_check_iter: |
| 1544 | ath_dbg(ath9k_hw_common(ah), RESET, |
| 1545 | "DCU registers: chain %08x complete %08x Hang: state %d pos %d\n", |
| 1546 | chain_state, comp_state, hang_state, hang_pos); |
| 1547 | |
| 1548 | for (i = 0; i < NUM_STATUS_READS; i++) { |
| 1549 | chain_state = REG_READ(ah, dcs_reg); |
| 1550 | chain_state = (chain_state >> (5 * hang_pos)) & 0x1f; |
| 1551 | comp_state = REG_READ(ah, AR_DMADBG_6); |
| 1552 | |
| 1553 | if (((comp_state & DCU_COMPLETE_STATE_MASK) != |
| 1554 | DCU_COMPLETE_STATE) || |
| 1555 | (chain_state != hang_state)) |
| 1556 | return false; |
| 1557 | } |
| 1558 | |
| 1559 | ath_dbg(ath9k_hw_common(ah), RESET, "MAC Hang signature 1 found\n"); |
| 1560 | |
| 1561 | return true; |
| 1562 | } |
| 1563 | |
Felix Fietkau | c9c99e5 | 2010-04-19 19:57:29 +0200 | [diff] [blame] | 1564 | bool ath9k_hw_check_alive(struct ath_hw *ah) |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1565 | { |
Felix Fietkau | c9c99e5 | 2010-04-19 19:57:29 +0200 | [diff] [blame] | 1566 | int count = 50; |
| 1567 | u32 reg; |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1568 | |
Rajkumar Manoharan | 01e1891 | 2012-03-15 05:34:27 +0530 | [diff] [blame^] | 1569 | if (AR_SREV_9300(ah)) |
| 1570 | return !ath9k_hw_detect_mac_hang(ah); |
| 1571 | |
Felix Fietkau | e17f83e | 2010-09-22 12:34:53 +0200 | [diff] [blame] | 1572 | if (AR_SREV_9285_12_OR_LATER(ah)) |
Felix Fietkau | c9c99e5 | 2010-04-19 19:57:29 +0200 | [diff] [blame] | 1573 | return true; |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1574 | |
Felix Fietkau | c9c99e5 | 2010-04-19 19:57:29 +0200 | [diff] [blame] | 1575 | do { |
| 1576 | reg = REG_READ(ah, AR_OBS_BUS_1); |
| 1577 | |
| 1578 | if ((reg & 0x7E7FFFEF) == 0x00702400) |
| 1579 | continue; |
| 1580 | |
| 1581 | switch (reg & 0x7E000B00) { |
| 1582 | case 0x1E000000: |
| 1583 | case 0x52000B00: |
| 1584 | case 0x18000B00: |
| 1585 | continue; |
| 1586 | default: |
| 1587 | return true; |
| 1588 | } |
| 1589 | } while (count-- > 0); |
| 1590 | |
| 1591 | return false; |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1592 | } |
Felix Fietkau | c9c99e5 | 2010-04-19 19:57:29 +0200 | [diff] [blame] | 1593 | EXPORT_SYMBOL(ath9k_hw_check_alive); |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1594 | |
Sujith Manoharan | caed657 | 2012-03-14 14:40:46 +0530 | [diff] [blame] | 1595 | /* |
| 1596 | * Fast channel change: |
| 1597 | * (Change synthesizer based on channel freq without resetting chip) |
| 1598 | * |
| 1599 | * Don't do FCC when |
| 1600 | * - Flag is not set |
| 1601 | * - Chip is just coming out of full sleep |
| 1602 | * - Channel to be set is same as current channel |
| 1603 | * - Channel flags are different, (eg.,moving from 2GHz to 5GHz channel) |
| 1604 | */ |
| 1605 | static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan) |
| 1606 | { |
| 1607 | struct ath_common *common = ath9k_hw_common(ah); |
| 1608 | int ret; |
| 1609 | |
| 1610 | if (AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI) |
| 1611 | goto fail; |
| 1612 | |
| 1613 | if (ah->chip_fullsleep) |
| 1614 | goto fail; |
| 1615 | |
| 1616 | if (!ah->curchan) |
| 1617 | goto fail; |
| 1618 | |
| 1619 | if (chan->channel == ah->curchan->channel) |
| 1620 | goto fail; |
| 1621 | |
| 1622 | if ((chan->channelFlags & CHANNEL_ALL) != |
| 1623 | (ah->curchan->channelFlags & CHANNEL_ALL)) |
| 1624 | goto fail; |
| 1625 | |
| 1626 | if (!ath9k_hw_check_alive(ah)) |
| 1627 | goto fail; |
| 1628 | |
| 1629 | /* |
| 1630 | * For AR9462, make sure that calibration data for |
| 1631 | * re-using are present. |
| 1632 | */ |
| 1633 | if (AR_SREV_9462(ah) && (!ah->caldata || |
| 1634 | !ah->caldata->done_txiqcal_once || |
| 1635 | !ah->caldata->done_txclcal_once || |
| 1636 | !ah->caldata->rtt_hist.num_readings)) |
| 1637 | goto fail; |
| 1638 | |
| 1639 | ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n", |
| 1640 | ah->curchan->channel, chan->channel); |
| 1641 | |
| 1642 | ret = ath9k_hw_channel_change(ah, chan); |
| 1643 | if (!ret) |
| 1644 | goto fail; |
| 1645 | |
| 1646 | ath9k_hw_loadnf(ah, ah->curchan); |
| 1647 | ath9k_hw_start_nfcal(ah, true); |
| 1648 | |
| 1649 | if ((ah->caps.hw_caps & ATH9K_HW_CAP_MCI) && ar9003_mci_is_ready(ah)) |
| 1650 | ar9003_mci_2g5g_switch(ah, true); |
| 1651 | |
| 1652 | if (AR_SREV_9271(ah)) |
| 1653 | ar9002_hw_load_ani_reg(ah, chan); |
| 1654 | |
| 1655 | return 0; |
| 1656 | fail: |
| 1657 | return -EINVAL; |
| 1658 | } |
| 1659 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1660 | int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, |
Sujith Manoharan | caed657 | 2012-03-14 14:40:46 +0530 | [diff] [blame] | 1661 | struct ath9k_hw_cal_data *caldata, bool fastcc) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1662 | { |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 1663 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1664 | u32 saveLedState; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1665 | u32 saveDefAntenna; |
| 1666 | u32 macStaId1; |
Sujith | 46fe782 | 2009-09-17 09:25:25 +0530 | [diff] [blame] | 1667 | u64 tsf = 0; |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1668 | int i, r; |
Sujith Manoharan | caed657 | 2012-03-14 14:40:46 +0530 | [diff] [blame] | 1669 | bool start_mci_reset = false; |
Mohammed Shafi Shajakhan | 63d3296 | 2011-11-30 10:41:27 +0530 | [diff] [blame] | 1670 | bool mci = !!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI); |
| 1671 | bool save_fullsleep = ah->chip_fullsleep; |
| 1672 | |
| 1673 | if (mci) { |
Sujith Manoharan | 528e5d3 | 2012-02-22 12:41:12 +0530 | [diff] [blame] | 1674 | start_mci_reset = ar9003_mci_start_reset(ah, chan); |
| 1675 | if (start_mci_reset) |
| 1676 | return 0; |
Mohammed Shafi Shajakhan | 63d3296 | 2011-11-30 10:41:27 +0530 | [diff] [blame] | 1677 | } |
| 1678 | |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 1679 | if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1680 | return -EIO; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1681 | |
Sujith Manoharan | caed657 | 2012-03-14 14:40:46 +0530 | [diff] [blame] | 1682 | if (ah->curchan && !ah->chip_fullsleep) |
| 1683 | ath9k_hw_getnf(ah, ah->curchan); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1684 | |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 1685 | ah->caldata = caldata; |
| 1686 | if (caldata && |
| 1687 | (chan->channel != caldata->channel || |
| 1688 | (chan->channelFlags & ~CHANNEL_CW_INT) != |
| 1689 | (caldata->channelFlags & ~CHANNEL_CW_INT))) { |
| 1690 | /* Operating channel changed, reset channel calibration data */ |
| 1691 | memset(caldata, 0, sizeof(*caldata)); |
| 1692 | ath9k_init_nfcal_hist_buffer(ah, chan); |
| 1693 | } |
Felix Fietkau | f23fba4 | 2011-07-28 14:08:56 +0200 | [diff] [blame] | 1694 | ah->noise = ath9k_hw_getchan_noise(ah, chan); |
Felix Fietkau | 20bd2a0 | 2010-07-31 00:12:00 +0200 | [diff] [blame] | 1695 | |
Sujith Manoharan | caed657 | 2012-03-14 14:40:46 +0530 | [diff] [blame] | 1696 | if (fastcc) { |
| 1697 | r = ath9k_hw_do_fastcc(ah, chan); |
| 1698 | if (!r) |
| 1699 | return r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1700 | } |
| 1701 | |
Sujith Manoharan | 528e5d3 | 2012-02-22 12:41:12 +0530 | [diff] [blame] | 1702 | if (mci) |
| 1703 | ar9003_mci_stop_bt(ah, save_fullsleep); |
Mohammed Shafi Shajakhan | 63d3296 | 2011-11-30 10:41:27 +0530 | [diff] [blame] | 1704 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1705 | saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA); |
| 1706 | if (saveDefAntenna == 0) |
| 1707 | saveDefAntenna = 1; |
| 1708 | |
| 1709 | macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B; |
| 1710 | |
Sujith | 46fe782 | 2009-09-17 09:25:25 +0530 | [diff] [blame] | 1711 | /* For chips on which RTC reset is done, save TSF before it gets cleared */ |
Felix Fietkau | f860d52 | 2010-06-30 02:07:48 +0200 | [diff] [blame] | 1712 | if (AR_SREV_9100(ah) || |
| 1713 | (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))) |
Sujith | 46fe782 | 2009-09-17 09:25:25 +0530 | [diff] [blame] | 1714 | tsf = ath9k_hw_gettsf64(ah); |
| 1715 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1716 | saveLedState = REG_READ(ah, AR_CFG_LED) & |
| 1717 | (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL | |
| 1718 | AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW); |
| 1719 | |
| 1720 | ath9k_hw_mark_phy_inactive(ah); |
| 1721 | |
Vasanthakumar Thiagarajan | 45ef6a0 | 2010-12-15 07:30:53 -0800 | [diff] [blame] | 1722 | ah->paprd_table_write_done = false; |
| 1723 | |
Sujith | 05020d2 | 2010-03-17 14:25:23 +0530 | [diff] [blame] | 1724 | /* Only required on the first reset */ |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1725 | if (AR_SREV_9271(ah) && ah->htc_reset_init) { |
| 1726 | REG_WRITE(ah, |
| 1727 | AR9271_RESET_POWER_DOWN_CONTROL, |
| 1728 | AR9271_RADIO_RF_RST); |
| 1729 | udelay(50); |
| 1730 | } |
| 1731 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1732 | if (!ath9k_hw_chip_reset(ah, chan)) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 1733 | ath_err(common, "Chip reset failed\n"); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1734 | return -EINVAL; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1735 | } |
| 1736 | |
Sujith | 05020d2 | 2010-03-17 14:25:23 +0530 | [diff] [blame] | 1737 | /* Only required on the first reset */ |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1738 | if (AR_SREV_9271(ah) && ah->htc_reset_init) { |
| 1739 | ah->htc_reset_init = false; |
| 1740 | REG_WRITE(ah, |
| 1741 | AR9271_RESET_POWER_DOWN_CONTROL, |
| 1742 | AR9271_GATE_MAC_CTL); |
| 1743 | udelay(50); |
| 1744 | } |
| 1745 | |
Sujith | 46fe782 | 2009-09-17 09:25:25 +0530 | [diff] [blame] | 1746 | /* Restore TSF */ |
Felix Fietkau | f860d52 | 2010-06-30 02:07:48 +0200 | [diff] [blame] | 1747 | if (tsf) |
Sujith | 46fe782 | 2009-09-17 09:25:25 +0530 | [diff] [blame] | 1748 | ath9k_hw_settsf64(ah, tsf); |
| 1749 | |
Felix Fietkau | 7a37081 | 2010-09-22 12:34:52 +0200 | [diff] [blame] | 1750 | if (AR_SREV_9280_20_OR_LATER(ah)) |
Vasanthakumar Thiagarajan | 369391d | 2009-01-21 19:24:13 +0530 | [diff] [blame] | 1751 | REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1752 | |
Sujith | e9141f7 | 2010-06-01 15:14:10 +0530 | [diff] [blame] | 1753 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
| 1754 | ar9002_hw_enable_async_fifo(ah); |
| 1755 | |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 1756 | r = ath9k_hw_process_ini(ah, chan); |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1757 | if (r) |
| 1758 | return r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1759 | |
Mohammed Shafi Shajakhan | 63d3296 | 2011-11-30 10:41:27 +0530 | [diff] [blame] | 1760 | if (mci) |
| 1761 | ar9003_mci_reset(ah, false, IS_CHAN_2GHZ(chan), save_fullsleep); |
| 1762 | |
Felix Fietkau | f860d52 | 2010-06-30 02:07:48 +0200 | [diff] [blame] | 1763 | /* |
| 1764 | * Some AR91xx SoC devices frequently fail to accept TSF writes |
| 1765 | * right after the chip reset. When that happens, write a new |
| 1766 | * value after the initvals have been applied, with an offset |
| 1767 | * based on measured time difference |
| 1768 | */ |
| 1769 | if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) { |
| 1770 | tsf += 1500; |
| 1771 | ath9k_hw_settsf64(ah, tsf); |
| 1772 | } |
| 1773 | |
Jouni Malinen | 0ced0e1 | 2009-01-08 13:32:13 +0200 | [diff] [blame] | 1774 | /* Setup MFP options for CCMP */ |
| 1775 | if (AR_SREV_9280_20_OR_LATER(ah)) { |
| 1776 | /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt |
| 1777 | * frames when constructing CCMP AAD. */ |
| 1778 | REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT, |
| 1779 | 0xc7ff); |
| 1780 | ah->sw_mgmt_crypto = false; |
| 1781 | } else if (AR_SREV_9160_10_OR_LATER(ah)) { |
| 1782 | /* Disable hardware crypto for management frames */ |
| 1783 | REG_CLR_BIT(ah, AR_PCU_MISC_MODE2, |
| 1784 | AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE); |
| 1785 | REG_SET_BIT(ah, AR_PCU_MISC_MODE2, |
| 1786 | AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT); |
| 1787 | ah->sw_mgmt_crypto = true; |
| 1788 | } else |
| 1789 | ah->sw_mgmt_crypto = true; |
| 1790 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1791 | if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan)) |
| 1792 | ath9k_hw_set_delta_slope(ah, chan); |
| 1793 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1794 | ath9k_hw_spur_mitigate_freq(ah, chan); |
Sujith | d650915 | 2009-03-13 08:56:05 +0530 | [diff] [blame] | 1795 | ah->eep_ops->set_board_values(ah, chan); |
Luis R. Rodriguez | a776582 | 2009-10-19 02:33:45 -0400 | [diff] [blame] | 1796 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1797 | ENABLE_REGWRITE_BUFFER(ah); |
| 1798 | |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 1799 | REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr)); |
| 1800 | REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1801 | | macStaId1 |
| 1802 | | AR_STA_ID1_RTS_USE_DEF |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1803 | | (ah->config. |
Sujith | 60b67f5 | 2008-08-07 10:52:38 +0530 | [diff] [blame] | 1804 | ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1805 | | ah->sta_id1_defaults); |
Luis R. Rodriguez | 13b8155 | 2009-09-10 17:52:45 -0700 | [diff] [blame] | 1806 | ath_hw_setbssidmask(common); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1807 | REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna); |
Luis R. Rodriguez | 3453ad8 | 2009-09-10 08:57:00 -0700 | [diff] [blame] | 1808 | ath9k_hw_write_associd(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1809 | REG_WRITE(ah, AR_ISR, ~0); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1810 | REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR); |
| 1811 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1812 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1813 | |
Sujith Manoharan | 00e0003 | 2011-01-26 21:59:05 +0530 | [diff] [blame] | 1814 | ath9k_hw_set_operating_mode(ah, ah->opmode); |
| 1815 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1816 | r = ath9k_hw_rf_set_freq(ah, chan); |
Luis R. Rodriguez | 0a3b7ba | 2009-10-19 02:33:40 -0400 | [diff] [blame] | 1817 | if (r) |
| 1818 | return r; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1819 | |
Felix Fietkau | dfdac8a | 2010-10-08 22:13:51 +0200 | [diff] [blame] | 1820 | ath9k_hw_set_clockrate(ah); |
| 1821 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1822 | ENABLE_REGWRITE_BUFFER(ah); |
| 1823 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1824 | for (i = 0; i < AR_NUM_DCU; i++) |
| 1825 | REG_WRITE(ah, AR_DQCUMASK(i), 1 << i); |
| 1826 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1827 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1828 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1829 | ah->intr_txqs = 0; |
Felix Fietkau | f4c607d | 2011-03-23 20:57:28 +0100 | [diff] [blame] | 1830 | for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1831 | ath9k_hw_resettxqueue(ah, i); |
| 1832 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1833 | ath9k_hw_init_interrupt_masks(ah, ah->opmode); |
Luis R. Rodriguez | e36b27a | 2010-06-12 00:33:45 -0400 | [diff] [blame] | 1834 | ath9k_hw_ani_cache_ini_regs(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1835 | ath9k_hw_init_qos(ah); |
| 1836 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1837 | if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
Felix Fietkau | 5582132 | 2010-12-17 00:57:01 +0100 | [diff] [blame] | 1838 | ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio); |
Johannes Berg | 3b319aa | 2009-06-13 14:50:26 +0530 | [diff] [blame] | 1839 | |
Felix Fietkau | 0005baf | 2010-01-15 02:33:40 +0100 | [diff] [blame] | 1840 | ath9k_hw_init_global_settings(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1841 | |
Felix Fietkau | fe2b6af | 2011-07-09 11:12:51 +0700 | [diff] [blame] | 1842 | if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) { |
| 1843 | REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER, |
| 1844 | AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768); |
| 1845 | REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN, |
| 1846 | AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL); |
| 1847 | REG_SET_BIT(ah, AR_PCU_MISC_MODE2, |
| 1848 | AR_PCU_MISC_MODE2_ENABLE_AGGWEP); |
Vivek Natarajan | ac88b6e | 2009-07-23 10:59:57 +0530 | [diff] [blame] | 1849 | } |
| 1850 | |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 1851 | REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1852 | |
| 1853 | ath9k_hw_set_dma(ah); |
| 1854 | |
| 1855 | REG_WRITE(ah, AR_OBS, 8); |
| 1856 | |
Sujith | 0ce024c | 2009-12-14 14:57:00 +0530 | [diff] [blame] | 1857 | if (ah->config.rx_intr_mitigation) { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1858 | REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500); |
| 1859 | REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000); |
| 1860 | } |
| 1861 | |
Vasanthakumar Thiagarajan | 7f62a13 | 2010-04-15 17:39:19 -0400 | [diff] [blame] | 1862 | if (ah->config.tx_intr_mitigation) { |
| 1863 | REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_LAST, 300); |
| 1864 | REG_RMW_FIELD(ah, AR_TIMT, AR_TIMT_FIRST, 750); |
| 1865 | } |
| 1866 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1867 | ath9k_hw_init_bb(ah, chan); |
| 1868 | |
Rajkumar Manoharan | 77a5a66 | 2011-10-13 11:00:37 +0530 | [diff] [blame] | 1869 | if (caldata) { |
Rajkumar Manoharan | 5f0c04e | 2011-10-13 11:00:35 +0530 | [diff] [blame] | 1870 | caldata->done_txiqcal_once = false; |
Rajkumar Manoharan | 77a5a66 | 2011-10-13 11:00:37 +0530 | [diff] [blame] | 1871 | caldata->done_txclcal_once = false; |
Rajkumar Manoharan | 324c74a | 2011-10-13 11:00:41 +0530 | [diff] [blame] | 1872 | caldata->rtt_hist.num_readings = 0; |
Rajkumar Manoharan | 77a5a66 | 2011-10-13 11:00:37 +0530 | [diff] [blame] | 1873 | } |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1874 | if (!ath9k_hw_init_cal(ah, chan)) |
Joe Perches | 6badaaf | 2009-06-28 09:26:32 -0700 | [diff] [blame] | 1875 | return -EIO; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1876 | |
Rajkumar Manoharan | 9334892 | 2011-10-25 16:47:36 +0530 | [diff] [blame] | 1877 | ath9k_hw_loadnf(ah, chan); |
| 1878 | ath9k_hw_start_nfcal(ah, true); |
| 1879 | |
Sujith Manoharan | 528e5d3 | 2012-02-22 12:41:12 +0530 | [diff] [blame] | 1880 | if (mci && ar9003_mci_end_reset(ah, chan, caldata)) |
| 1881 | return -EIO; |
Mohammed Shafi Shajakhan | 63d3296 | 2011-11-30 10:41:27 +0530 | [diff] [blame] | 1882 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1883 | ENABLE_REGWRITE_BUFFER(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1884 | |
Luis R. Rodriguez | 8fe6536 | 2010-04-15 17:38:14 -0400 | [diff] [blame] | 1885 | ath9k_hw_restore_chainmask(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1886 | REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ); |
| 1887 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1888 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 1889 | |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1890 | /* |
| 1891 | * For big endian systems turn on swapping for descriptors |
| 1892 | */ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1893 | if (AR_SREV_9100(ah)) { |
| 1894 | u32 mask; |
| 1895 | mask = REG_READ(ah, AR_CFG); |
| 1896 | if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) { |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 1897 | ath_dbg(common, RESET, "CFG Byte Swap Set 0x%x\n", |
| 1898 | mask); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1899 | } else { |
| 1900 | mask = |
| 1901 | INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB; |
| 1902 | REG_WRITE(ah, AR_CFG, mask); |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 1903 | ath_dbg(common, RESET, "Setting CFG 0x%x\n", |
| 1904 | REG_READ(ah, AR_CFG)); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1905 | } |
| 1906 | } else { |
Sujith | cbba8cd | 2010-06-02 15:53:31 +0530 | [diff] [blame] | 1907 | if (common->bus_ops->ath_bus_type == ATH_USB) { |
| 1908 | /* Configure AR9271 target WLAN */ |
| 1909 | if (AR_SREV_9271(ah)) |
| 1910 | REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB); |
| 1911 | else |
| 1912 | REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD); |
| 1913 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1914 | #ifdef __BIG_ENDIAN |
Gabor Juhos | 4033bda | 2011-06-21 11:23:35 +0200 | [diff] [blame] | 1915 | else if (AR_SREV_9330(ah) || AR_SREV_9340(ah)) |
Vasanthakumar Thiagarajan | 2be7bfe | 2011-04-19 19:29:14 +0530 | [diff] [blame] | 1916 | REG_RMW(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB, 0); |
| 1917 | else |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 1918 | REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1919 | #endif |
| 1920 | } |
| 1921 | |
Sujith Manoharan | dbccdd1 | 2012-02-22 17:55:47 +0530 | [diff] [blame] | 1922 | if (ath9k_hw_btcoex_is_enabled(ah)) |
Vasanthakumar Thiagarajan | 42cc41e | 2009-08-26 21:08:45 +0530 | [diff] [blame] | 1923 | ath9k_hw_btcoex_enable(ah); |
| 1924 | |
Sujith Manoharan | 528e5d3 | 2012-02-22 12:41:12 +0530 | [diff] [blame] | 1925 | if (mci) |
| 1926 | ar9003_mci_check_bt(ah); |
Mohammed Shafi Shajakhan | 63d3296 | 2011-11-30 10:41:27 +0530 | [diff] [blame] | 1927 | |
Rajkumar Manoharan | 51ac8cb | 2011-05-20 17:52:13 +0530 | [diff] [blame] | 1928 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
Luis R. Rodriguez | aea702b | 2010-05-13 13:33:43 -0400 | [diff] [blame] | 1929 | ar9003_hw_bb_watchdog_config(ah); |
Vasanthakumar Thiagarajan | d8903a5 | 2010-04-15 17:39:25 -0400 | [diff] [blame] | 1930 | |
Rajkumar Manoharan | 51ac8cb | 2011-05-20 17:52:13 +0530 | [diff] [blame] | 1931 | ar9003_hw_disable_phy_restart(ah); |
| 1932 | } |
| 1933 | |
Felix Fietkau | 691680b | 2011-03-19 13:55:38 +0100 | [diff] [blame] | 1934 | ath9k_hw_apply_gpio_override(ah); |
| 1935 | |
Luis R. Rodriguez | ae8d285 | 2008-12-23 15:58:40 -0800 | [diff] [blame] | 1936 | return 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1937 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 1938 | EXPORT_SYMBOL(ath9k_hw_reset); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1939 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1940 | /******************************/ |
| 1941 | /* Power Management (Chipset) */ |
| 1942 | /******************************/ |
| 1943 | |
Luis R. Rodriguez | 42d5bc3 | 2010-04-15 17:38:12 -0400 | [diff] [blame] | 1944 | /* |
| 1945 | * Notify Power Mgt is disabled in self-generated frames. |
| 1946 | * If requested, force chip to sleep. |
| 1947 | */ |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1948 | static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1949 | { |
| 1950 | REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV); |
| 1951 | if (setChip) { |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 1952 | if (AR_SREV_9462(ah)) { |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 1953 | REG_WRITE(ah, AR_TIMER_MODE, |
| 1954 | REG_READ(ah, AR_TIMER_MODE) & 0xFFFFFF00); |
| 1955 | REG_WRITE(ah, AR_NDP2_TIMER_MODE, REG_READ(ah, |
| 1956 | AR_NDP2_TIMER_MODE) & 0xFFFFFF00); |
| 1957 | REG_WRITE(ah, AR_SLP32_INC, |
| 1958 | REG_READ(ah, AR_SLP32_INC) & 0xFFF00000); |
| 1959 | /* xxx Required for WLAN only case ? */ |
| 1960 | REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, 0); |
| 1961 | udelay(100); |
| 1962 | } |
| 1963 | |
Luis R. Rodriguez | 42d5bc3 | 2010-04-15 17:38:12 -0400 | [diff] [blame] | 1964 | /* |
| 1965 | * Clear the RTC force wake bit to allow the |
| 1966 | * mac to go to sleep. |
| 1967 | */ |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 1968 | REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN); |
| 1969 | |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 1970 | if (AR_SREV_9462(ah)) |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 1971 | udelay(100); |
| 1972 | |
Luis R. Rodriguez | 42d5bc3 | 2010-04-15 17:38:12 -0400 | [diff] [blame] | 1973 | if (!AR_SREV_9100(ah) && !AR_SREV_9300_20_OR_LATER(ah)) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1974 | REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF); |
| 1975 | |
Luis R. Rodriguez | 42d5bc3 | 2010-04-15 17:38:12 -0400 | [diff] [blame] | 1976 | /* Shutdown chip. Active low */ |
Sujith Manoharan | c91ec46 | 2012-02-22 12:40:03 +0530 | [diff] [blame] | 1977 | if (!AR_SREV_5416(ah) && !AR_SREV_9271(ah)) { |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 1978 | REG_CLR_BIT(ah, AR_RTC_RESET, AR_RTC_RESET_EN); |
| 1979 | udelay(2); |
| 1980 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1981 | } |
Luis R. Rodriguez | 9a658d2 | 2010-06-21 18:38:47 -0400 | [diff] [blame] | 1982 | |
| 1983 | /* Clear Bit 14 of AR_WA after putting chip into Full Sleep mode. */ |
Rafael J. Wysocki | a732281 | 2011-11-26 23:37:43 +0100 | [diff] [blame] | 1984 | if (AR_SREV_9300_20_OR_LATER(ah)) |
| 1985 | REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1986 | } |
| 1987 | |
Luis R. Rodriguez | bbd79af | 2010-04-15 17:38:16 -0400 | [diff] [blame] | 1988 | /* |
| 1989 | * Notify Power Management is enabled in self-generating |
| 1990 | * frames. If request, set power mode of chip to |
| 1991 | * auto/normal. Duration in units of 128us (1/8 TU). |
| 1992 | */ |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 1993 | static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 1994 | { |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 1995 | u32 val; |
| 1996 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 1997 | REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV); |
| 1998 | if (setChip) { |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 1999 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2000 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2001 | if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { |
Luis R. Rodriguez | bbd79af | 2010-04-15 17:38:16 -0400 | [diff] [blame] | 2002 | /* Set WakeOnInterrupt bit; clear ForceWake bit */ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2003 | REG_WRITE(ah, AR_RTC_FORCE_WAKE, |
| 2004 | AR_RTC_FORCE_WAKE_ON_INT); |
| 2005 | } else { |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 2006 | |
| 2007 | /* When chip goes into network sleep, it could be waken |
| 2008 | * up by MCI_INT interrupt caused by BT's HW messages |
| 2009 | * (LNA_xxx, CONT_xxx) which chould be in a very fast |
| 2010 | * rate (~100us). This will cause chip to leave and |
| 2011 | * re-enter network sleep mode frequently, which in |
| 2012 | * consequence will have WLAN MCI HW to generate lots of |
| 2013 | * SYS_WAKING and SYS_SLEEPING messages which will make |
| 2014 | * BT CPU to busy to process. |
| 2015 | */ |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 2016 | if (AR_SREV_9462(ah)) { |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 2017 | val = REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_EN) & |
| 2018 | ~AR_MCI_INTERRUPT_RX_HW_MSG_MASK; |
| 2019 | REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_EN, val); |
| 2020 | } |
Luis R. Rodriguez | bbd79af | 2010-04-15 17:38:16 -0400 | [diff] [blame] | 2021 | /* |
| 2022 | * Clear the RTC force wake bit to allow the |
| 2023 | * mac to go to sleep. |
| 2024 | */ |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2025 | REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE, |
| 2026 | AR_RTC_FORCE_WAKE_EN); |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 2027 | |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 2028 | if (AR_SREV_9462(ah)) |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 2029 | udelay(30); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2030 | } |
| 2031 | } |
Luis R. Rodriguez | 9a658d2 | 2010-06-21 18:38:47 -0400 | [diff] [blame] | 2032 | |
| 2033 | /* Clear Bit 14 of AR_WA after putting chip into Net Sleep mode. */ |
| 2034 | if (AR_SREV_9300_20_OR_LATER(ah)) |
| 2035 | REG_WRITE(ah, AR_WA, ah->WARegVal & ~AR_WA_D3_L1_DISABLE); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2036 | } |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2037 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2038 | static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2039 | { |
| 2040 | u32 val; |
| 2041 | int i; |
| 2042 | |
Luis R. Rodriguez | 9a658d2 | 2010-06-21 18:38:47 -0400 | [diff] [blame] | 2043 | /* Set Bits 14 and 17 of AR_WA before powering on the chip. */ |
| 2044 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 2045 | REG_WRITE(ah, AR_WA, ah->WARegVal); |
| 2046 | udelay(10); |
| 2047 | } |
| 2048 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2049 | if (setChip) { |
| 2050 | if ((REG_READ(ah, AR_RTC_STATUS) & |
| 2051 | AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) { |
Joe Perches | 23677ce | 2012-02-09 11:17:23 +0000 | [diff] [blame] | 2052 | if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) { |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2053 | return false; |
| 2054 | } |
Luis R. Rodriguez | e041228 | 2010-04-15 17:38:15 -0400 | [diff] [blame] | 2055 | if (!AR_SREV_9300_20_OR_LATER(ah)) |
| 2056 | ath9k_hw_init_pll(ah, NULL); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2057 | } |
| 2058 | if (AR_SREV_9100(ah)) |
| 2059 | REG_SET_BIT(ah, AR_RTC_RESET, |
| 2060 | AR_RTC_RESET_EN); |
| 2061 | |
| 2062 | REG_SET_BIT(ah, AR_RTC_FORCE_WAKE, |
| 2063 | AR_RTC_FORCE_WAKE_EN); |
| 2064 | udelay(50); |
| 2065 | |
| 2066 | for (i = POWER_UP_TIME / 50; i > 0; i--) { |
| 2067 | val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M; |
| 2068 | if (val == AR_RTC_STATUS_ON) |
| 2069 | break; |
| 2070 | udelay(50); |
| 2071 | REG_SET_BIT(ah, AR_RTC_FORCE_WAKE, |
| 2072 | AR_RTC_FORCE_WAKE_EN); |
| 2073 | } |
| 2074 | if (i == 0) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 2075 | ath_err(ath9k_hw_common(ah), |
| 2076 | "Failed to wakeup in %uus\n", |
| 2077 | POWER_UP_TIME / 20); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2078 | return false; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2079 | } |
| 2080 | } |
| 2081 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2082 | REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV); |
| 2083 | |
| 2084 | return true; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2085 | } |
| 2086 | |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 2087 | bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2088 | { |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 2089 | struct ath_common *common = ath9k_hw_common(ah); |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2090 | int status = true, setChip = true; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2091 | static const char *modes[] = { |
| 2092 | "AWAKE", |
| 2093 | "FULL-SLEEP", |
| 2094 | "NETWORK SLEEP", |
| 2095 | "UNDEFINED" |
| 2096 | }; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2097 | |
Gabor Juhos | cbdec97 | 2009-07-24 17:27:22 +0200 | [diff] [blame] | 2098 | if (ah->power_mode == mode) |
| 2099 | return status; |
| 2100 | |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 2101 | ath_dbg(common, RESET, "%s -> %s\n", |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 2102 | modes[ah->power_mode], modes[mode]); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2103 | |
| 2104 | switch (mode) { |
| 2105 | case ATH9K_PM_AWAKE: |
| 2106 | status = ath9k_hw_set_power_awake(ah, setChip); |
Mohammed Shafi Shajakhan | 1010911 | 2011-11-30 10:41:24 +0530 | [diff] [blame] | 2107 | |
| 2108 | if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) |
| 2109 | REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2); |
| 2110 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2111 | break; |
| 2112 | case ATH9K_PM_FULL_SLEEP: |
Sujith Manoharan | d1ca8b8 | 2012-02-22 12:41:01 +0530 | [diff] [blame] | 2113 | if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) |
| 2114 | ar9003_mci_set_full_sleep(ah); |
Mohammed Shafi Shajakhan | 1010911 | 2011-11-30 10:41:24 +0530 | [diff] [blame] | 2115 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2116 | ath9k_set_power_sleep(ah, setChip); |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2117 | ah->chip_fullsleep = true; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2118 | break; |
| 2119 | case ATH9K_PM_NETWORK_SLEEP: |
Mohammed Shafi Shajakhan | 1010911 | 2011-11-30 10:41:24 +0530 | [diff] [blame] | 2120 | |
| 2121 | if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) |
| 2122 | REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2); |
| 2123 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2124 | ath9k_set_power_network_sleep(ah, setChip); |
| 2125 | break; |
| 2126 | default: |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 2127 | ath_err(common, "Unknown power mode %u\n", mode); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2128 | return false; |
| 2129 | } |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2130 | ah->power_mode = mode; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2131 | |
Luis R. Rodriguez | 69f4aab | 2010-12-07 15:13:23 -0800 | [diff] [blame] | 2132 | /* |
| 2133 | * XXX: If this warning never comes up after a while then |
| 2134 | * simply keep the ATH_DBG_WARN_ON_ONCE() but make |
| 2135 | * ath9k_hw_setpower() return type void. |
| 2136 | */ |
Sujith Manoharan | 97dcec5 | 2010-12-20 08:02:42 +0530 | [diff] [blame] | 2137 | |
| 2138 | if (!(ah->ah_flags & AH_UNPLUGGED)) |
| 2139 | ATH_DBG_WARN_ON_ONCE(!status); |
Luis R. Rodriguez | 69f4aab | 2010-12-07 15:13:23 -0800 | [diff] [blame] | 2140 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2141 | return status; |
| 2142 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2143 | EXPORT_SYMBOL(ath9k_hw_setpower); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2144 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2145 | /*******************/ |
| 2146 | /* Beacon Handling */ |
| 2147 | /*******************/ |
| 2148 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2149 | void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2150 | { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2151 | int flags = 0; |
| 2152 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2153 | ENABLE_REGWRITE_BUFFER(ah); |
| 2154 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2155 | switch (ah->opmode) { |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 2156 | case NL80211_IFTYPE_ADHOC: |
Pat Erley | 9cb5412 | 2009-03-20 22:59:59 -0400 | [diff] [blame] | 2157 | case NL80211_IFTYPE_MESH_POINT: |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2158 | REG_SET_BIT(ah, AR_TXCFG, |
| 2159 | AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY); |
Felix Fietkau | dd347f2 | 2011-03-22 21:54:17 +0100 | [diff] [blame] | 2160 | REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon + |
| 2161 | TU_TO_USEC(ah->atim_window ? ah->atim_window : 1)); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2162 | flags |= AR_NDP_TIMER_EN; |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 2163 | case NL80211_IFTYPE_AP: |
Felix Fietkau | dd347f2 | 2011-03-22 21:54:17 +0100 | [diff] [blame] | 2164 | REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon); |
| 2165 | REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon - |
| 2166 | TU_TO_USEC(ah->config.dma_beacon_response_time)); |
| 2167 | REG_WRITE(ah, AR_NEXT_SWBA, next_beacon - |
| 2168 | TU_TO_USEC(ah->config.sw_beacon_response_time)); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2169 | flags |= |
| 2170 | AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN; |
| 2171 | break; |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 2172 | default: |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 2173 | ath_dbg(ath9k_hw_common(ah), BEACON, |
| 2174 | "%s: unsupported opmode: %d\n", __func__, ah->opmode); |
Colin McCabe | d97809d | 2008-12-01 13:38:55 -0800 | [diff] [blame] | 2175 | return; |
| 2176 | break; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2177 | } |
| 2178 | |
Felix Fietkau | dd347f2 | 2011-03-22 21:54:17 +0100 | [diff] [blame] | 2179 | REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period); |
| 2180 | REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period); |
| 2181 | REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period); |
| 2182 | REG_WRITE(ah, AR_NDP_PERIOD, beacon_period); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2183 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2184 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2185 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2186 | REG_SET_BIT(ah, AR_TIMER_MODE, flags); |
| 2187 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2188 | EXPORT_SYMBOL(ath9k_hw_beaconinit); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2189 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2190 | void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2191 | const struct ath9k_beacon_state *bs) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2192 | { |
| 2193 | u32 nextTbtt, beaconintval, dtimperiod, beacontimeout; |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2194 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 2195 | struct ath_common *common = ath9k_hw_common(ah); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2196 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2197 | ENABLE_REGWRITE_BUFFER(ah); |
| 2198 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2199 | REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt)); |
| 2200 | |
| 2201 | REG_WRITE(ah, AR_BEACON_PERIOD, |
Rajkumar Manoharan | f29f5c0 | 2011-05-20 17:52:11 +0530 | [diff] [blame] | 2202 | TU_TO_USEC(bs->bs_intval)); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2203 | REG_WRITE(ah, AR_DMA_BEACON_PERIOD, |
Rajkumar Manoharan | f29f5c0 | 2011-05-20 17:52:11 +0530 | [diff] [blame] | 2204 | TU_TO_USEC(bs->bs_intval)); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2205 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2206 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2207 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2208 | REG_RMW_FIELD(ah, AR_RSSI_THR, |
| 2209 | AR_RSSI_THR_BM_THR, bs->bs_bmissthreshold); |
| 2210 | |
Rajkumar Manoharan | f29f5c0 | 2011-05-20 17:52:11 +0530 | [diff] [blame] | 2211 | beaconintval = bs->bs_intval; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2212 | |
| 2213 | if (bs->bs_sleepduration > beaconintval) |
| 2214 | beaconintval = bs->bs_sleepduration; |
| 2215 | |
| 2216 | dtimperiod = bs->bs_dtimperiod; |
| 2217 | if (bs->bs_sleepduration > dtimperiod) |
| 2218 | dtimperiod = bs->bs_sleepduration; |
| 2219 | |
| 2220 | if (beaconintval == dtimperiod) |
| 2221 | nextTbtt = bs->bs_nextdtim; |
| 2222 | else |
| 2223 | nextTbtt = bs->bs_nexttbtt; |
| 2224 | |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 2225 | ath_dbg(common, BEACON, "next DTIM %d\n", bs->bs_nextdtim); |
| 2226 | ath_dbg(common, BEACON, "next beacon %d\n", nextTbtt); |
| 2227 | ath_dbg(common, BEACON, "beacon period %d\n", beaconintval); |
| 2228 | ath_dbg(common, BEACON, "DTIM period %d\n", dtimperiod); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2229 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2230 | ENABLE_REGWRITE_BUFFER(ah); |
| 2231 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2232 | REG_WRITE(ah, AR_NEXT_DTIM, |
| 2233 | TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP)); |
| 2234 | REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP)); |
| 2235 | |
| 2236 | REG_WRITE(ah, AR_SLEEP1, |
| 2237 | SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT) |
| 2238 | | AR_SLEEP1_ASSUME_DTIM); |
| 2239 | |
Sujith | 60b67f5 | 2008-08-07 10:52:38 +0530 | [diff] [blame] | 2240 | if (pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2241 | beacontimeout = (BEACON_TIMEOUT_VAL << 3); |
| 2242 | else |
| 2243 | beacontimeout = MIN_BEACON_TIMEOUT_VAL; |
| 2244 | |
| 2245 | REG_WRITE(ah, AR_SLEEP2, |
| 2246 | SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT)); |
| 2247 | |
| 2248 | REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval)); |
| 2249 | REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod)); |
| 2250 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2251 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2252 | |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2253 | REG_SET_BIT(ah, AR_TIMER_MODE, |
| 2254 | AR_TBTT_TIMER_EN | AR_TIM_TIMER_EN | |
| 2255 | AR_DTIM_TIMER_EN); |
| 2256 | |
Sujith | 4af9cf4 | 2009-02-12 10:06:47 +0530 | [diff] [blame] | 2257 | /* TSF Out of Range Threshold */ |
| 2258 | REG_WRITE(ah, AR_TSFOOR_THRESHOLD, bs->bs_tsfoor_threshold); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2259 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2260 | EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2261 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2262 | /*******************/ |
| 2263 | /* HW Capabilities */ |
| 2264 | /*******************/ |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2265 | |
Felix Fietkau | 6054069 | 2011-07-19 08:46:44 +0200 | [diff] [blame] | 2266 | static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask) |
| 2267 | { |
| 2268 | eeprom_chainmask &= chip_chainmask; |
| 2269 | if (eeprom_chainmask) |
| 2270 | return eeprom_chainmask; |
| 2271 | else |
| 2272 | return chip_chainmask; |
| 2273 | } |
| 2274 | |
Zefir Kurtisi | 9a66af3 | 2011-12-14 20:16:33 -0800 | [diff] [blame] | 2275 | /** |
| 2276 | * ath9k_hw_dfs_tested - checks if DFS has been tested with used chipset |
| 2277 | * @ah: the atheros hardware data structure |
| 2278 | * |
| 2279 | * We enable DFS support upstream on chipsets which have passed a series |
| 2280 | * of tests. The testing requirements are going to be documented. Desired |
| 2281 | * test requirements are documented at: |
| 2282 | * |
| 2283 | * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs |
| 2284 | * |
| 2285 | * Once a new chipset gets properly tested an individual commit can be used |
| 2286 | * to document the testing for DFS for that chipset. |
| 2287 | */ |
| 2288 | static bool ath9k_hw_dfs_tested(struct ath_hw *ah) |
| 2289 | { |
| 2290 | |
| 2291 | switch (ah->hw_version.macVersion) { |
| 2292 | /* AR9580 will likely be our first target to get testing on */ |
| 2293 | case AR_SREV_VERSION_9580: |
| 2294 | default: |
| 2295 | return false; |
| 2296 | } |
| 2297 | } |
| 2298 | |
Gabor Juhos | a9a29ce | 2009-11-27 12:01:35 +0100 | [diff] [blame] | 2299 | int ath9k_hw_fill_cap_info(struct ath_hw *ah) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2300 | { |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2301 | struct ath9k_hw_capabilities *pCap = &ah->caps; |
Luis R. Rodriguez | 608b88c | 2009-08-17 18:07:23 -0700 | [diff] [blame] | 2302 | struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah); |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 2303 | struct ath_common *common = ath9k_hw_common(ah); |
Felix Fietkau | 6054069 | 2011-07-19 08:46:44 +0200 | [diff] [blame] | 2304 | unsigned int chip_chainmask; |
Luis R. Rodriguez | 608b88c | 2009-08-17 18:07:23 -0700 | [diff] [blame] | 2305 | |
Sujith Manoharan | 0ff2b5c | 2011-04-20 11:00:34 +0530 | [diff] [blame] | 2306 | u16 eeval; |
Vasanthakumar Thiagarajan | 47c80de | 2010-12-06 04:27:43 -0800 | [diff] [blame] | 2307 | u8 ant_div_ctl1, tx_chainmask, rx_chainmask; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2308 | |
Sujith | f74df6f | 2009-02-09 13:27:24 +0530 | [diff] [blame] | 2309 | eeval = ah->eep_ops->get_eeprom(ah, EEP_REG_0); |
Luis R. Rodriguez | 608b88c | 2009-08-17 18:07:23 -0700 | [diff] [blame] | 2310 | regulatory->current_rd = eeval; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2311 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2312 | if (ah->opmode != NL80211_IFTYPE_AP && |
Sujith | d535a42 | 2009-02-09 13:27:06 +0530 | [diff] [blame] | 2313 | ah->hw_version.subvendorid == AR_SUBVENDOR_ID_NEW_A) { |
Luis R. Rodriguez | 608b88c | 2009-08-17 18:07:23 -0700 | [diff] [blame] | 2314 | if (regulatory->current_rd == 0x64 || |
| 2315 | regulatory->current_rd == 0x65) |
| 2316 | regulatory->current_rd += 5; |
| 2317 | else if (regulatory->current_rd == 0x41) |
| 2318 | regulatory->current_rd = 0x43; |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 2319 | ath_dbg(common, REGULATORY, "regdomain mapped to 0x%x\n", |
| 2320 | regulatory->current_rd); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2321 | } |
Sujith | dc2222a | 2008-08-14 13:26:55 +0530 | [diff] [blame] | 2322 | |
Sujith | f74df6f | 2009-02-09 13:27:24 +0530 | [diff] [blame] | 2323 | eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE); |
Gabor Juhos | a9a29ce | 2009-11-27 12:01:35 +0100 | [diff] [blame] | 2324 | if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 2325 | ath_err(common, |
| 2326 | "no band has been marked as supported in EEPROM\n"); |
Gabor Juhos | a9a29ce | 2009-11-27 12:01:35 +0100 | [diff] [blame] | 2327 | return -EINVAL; |
| 2328 | } |
| 2329 | |
Felix Fietkau | d465991 | 2010-10-14 16:02:39 +0200 | [diff] [blame] | 2330 | if (eeval & AR5416_OPFLAGS_11A) |
| 2331 | pCap->hw_caps |= ATH9K_HW_CAP_5GHZ; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2332 | |
Felix Fietkau | d465991 | 2010-10-14 16:02:39 +0200 | [diff] [blame] | 2333 | if (eeval & AR5416_OPFLAGS_11G) |
| 2334 | pCap->hw_caps |= ATH9K_HW_CAP_2GHZ; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2335 | |
Felix Fietkau | 6054069 | 2011-07-19 08:46:44 +0200 | [diff] [blame] | 2336 | if (AR_SREV_9485(ah) || AR_SREV_9285(ah) || AR_SREV_9330(ah)) |
| 2337 | chip_chainmask = 1; |
Mohammed Shafi Shajakhan | ba5736a | 2011-11-30 21:10:52 +0530 | [diff] [blame] | 2338 | else if (AR_SREV_9462(ah)) |
| 2339 | chip_chainmask = 3; |
Felix Fietkau | 6054069 | 2011-07-19 08:46:44 +0200 | [diff] [blame] | 2340 | else if (!AR_SREV_9280_20_OR_LATER(ah)) |
| 2341 | chip_chainmask = 7; |
| 2342 | else if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9340(ah)) |
| 2343 | chip_chainmask = 3; |
| 2344 | else |
| 2345 | chip_chainmask = 7; |
| 2346 | |
Sujith | f74df6f | 2009-02-09 13:27:24 +0530 | [diff] [blame] | 2347 | pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK); |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 2348 | /* |
| 2349 | * For AR9271 we will temporarilly uses the rx chainmax as read from |
| 2350 | * the EEPROM. |
| 2351 | */ |
Sujith | 8147f5d | 2009-02-20 15:13:23 +0530 | [diff] [blame] | 2352 | if ((ah->hw_version.devid == AR5416_DEVID_PCI) && |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 2353 | !(eeval & AR5416_OPFLAGS_11A) && |
| 2354 | !(AR_SREV_9271(ah))) |
| 2355 | /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */ |
Sujith | 8147f5d | 2009-02-20 15:13:23 +0530 | [diff] [blame] | 2356 | pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7; |
Felix Fietkau | 598cdd5 | 2011-03-19 13:55:42 +0100 | [diff] [blame] | 2357 | else if (AR_SREV_9100(ah)) |
| 2358 | pCap->rx_chainmask = 0x7; |
Sujith | 8147f5d | 2009-02-20 15:13:23 +0530 | [diff] [blame] | 2359 | else |
Luis R. Rodriguez | d7e7d22 | 2009-08-03 23:14:12 -0400 | [diff] [blame] | 2360 | /* Use rx_chainmask from EEPROM. */ |
Sujith | 8147f5d | 2009-02-20 15:13:23 +0530 | [diff] [blame] | 2361 | pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2362 | |
Felix Fietkau | 6054069 | 2011-07-19 08:46:44 +0200 | [diff] [blame] | 2363 | pCap->tx_chainmask = fixup_chainmask(chip_chainmask, pCap->tx_chainmask); |
| 2364 | pCap->rx_chainmask = fixup_chainmask(chip_chainmask, pCap->rx_chainmask); |
Felix Fietkau | 82b2d33 | 2011-09-03 01:40:23 +0200 | [diff] [blame] | 2365 | ah->txchainmask = pCap->tx_chainmask; |
| 2366 | ah->rxchainmask = pCap->rx_chainmask; |
Felix Fietkau | 6054069 | 2011-07-19 08:46:44 +0200 | [diff] [blame] | 2367 | |
Felix Fietkau | 7a37081 | 2010-09-22 12:34:52 +0200 | [diff] [blame] | 2368 | ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2369 | |
Felix Fietkau | 02d2ebb | 2010-11-22 15:39:39 +0100 | [diff] [blame] | 2370 | /* enable key search for every frame in an aggregate */ |
| 2371 | if (AR_SREV_9300_20_OR_LATER(ah)) |
| 2372 | ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH; |
| 2373 | |
Bruno Randolf | ce2220d | 2010-09-17 11:36:25 +0900 | [diff] [blame] | 2374 | common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM; |
| 2375 | |
Felix Fietkau | 0db156e | 2011-03-23 20:57:29 +0100 | [diff] [blame] | 2376 | if (ah->hw_version.devid != AR2427_DEVID_PCIE) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2377 | pCap->hw_caps |= ATH9K_HW_CAP_HT; |
| 2378 | else |
| 2379 | pCap->hw_caps &= ~ATH9K_HW_CAP_HT; |
| 2380 | |
Sujith | 5b5fa35 | 2010-03-17 14:25:15 +0530 | [diff] [blame] | 2381 | if (AR_SREV_9271(ah)) |
| 2382 | pCap->num_gpio_pins = AR9271_NUM_GPIO; |
Sujith | 88c1f4f | 2010-06-30 14:46:31 +0530 | [diff] [blame] | 2383 | else if (AR_DEVID_7010(ah)) |
| 2384 | pCap->num_gpio_pins = AR7010_NUM_GPIO; |
Mohammed Shafi Shajakhan | 6321eb0 | 2011-09-30 11:31:27 +0530 | [diff] [blame] | 2385 | else if (AR_SREV_9300_20_OR_LATER(ah)) |
| 2386 | pCap->num_gpio_pins = AR9300_NUM_GPIO; |
| 2387 | else if (AR_SREV_9287_11_OR_LATER(ah)) |
| 2388 | pCap->num_gpio_pins = AR9287_NUM_GPIO; |
Felix Fietkau | e17f83e | 2010-09-22 12:34:53 +0200 | [diff] [blame] | 2389 | else if (AR_SREV_9285_12_OR_LATER(ah)) |
Senthil Balasubramanian | cb33c41 | 2008-12-24 18:03:58 +0530 | [diff] [blame] | 2390 | pCap->num_gpio_pins = AR9285_NUM_GPIO; |
Felix Fietkau | 7a37081 | 2010-09-22 12:34:52 +0200 | [diff] [blame] | 2391 | else if (AR_SREV_9280_20_OR_LATER(ah)) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2392 | pCap->num_gpio_pins = AR928X_NUM_GPIO; |
| 2393 | else |
| 2394 | pCap->num_gpio_pins = AR_NUM_GPIO; |
| 2395 | |
Mohammed Shafi Shajakhan | 1b2538b | 2011-12-07 16:51:39 +0530 | [diff] [blame] | 2396 | if (AR_SREV_9160_10_OR_LATER(ah) || AR_SREV_9100(ah)) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2397 | pCap->rts_aggr_limit = ATH_AMPDU_LIMIT_MAX; |
Mohammed Shafi Shajakhan | 1b2538b | 2011-12-07 16:51:39 +0530 | [diff] [blame] | 2398 | else |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2399 | pCap->rts_aggr_limit = (8 * 1024); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2400 | |
Senthil Balasubramanian | e97275c | 2008-11-13 18:00:02 +0530 | [diff] [blame] | 2401 | #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2402 | ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT); |
| 2403 | if (ah->rfsilent & EEP_RFSILENT_ENABLED) { |
| 2404 | ah->rfkill_gpio = |
| 2405 | MS(ah->rfsilent, EEP_RFSILENT_GPIO_SEL); |
| 2406 | ah->rfkill_polarity = |
| 2407 | MS(ah->rfsilent, EEP_RFSILENT_POLARITY); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2408 | |
| 2409 | pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT; |
| 2410 | } |
| 2411 | #endif |
Vasanthakumar Thiagarajan | d5d1154 | 2010-05-17 18:57:56 -0700 | [diff] [blame] | 2412 | if (AR_SREV_9271(ah) || AR_SREV_9300_20_OR_LATER(ah)) |
Vivek Natarajan | bde748a | 2010-04-05 14:48:05 +0530 | [diff] [blame] | 2413 | pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP; |
| 2414 | else |
| 2415 | pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2416 | |
Senthil Balasubramanian | e759407 | 2008-12-08 19:43:48 +0530 | [diff] [blame] | 2417 | if (AR_SREV_9280(ah) || AR_SREV_9285(ah)) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2418 | pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS; |
| 2419 | else |
| 2420 | pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS; |
| 2421 | |
Vasanthakumar Thiagarajan | ceb2644 | 2010-04-15 17:38:25 -0400 | [diff] [blame] | 2422 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
Vasanthakumar Thiagarajan | 784ad50 | 2010-12-06 04:27:40 -0800 | [diff] [blame] | 2423 | pCap->hw_caps |= ATH9K_HW_CAP_EDMA | ATH9K_HW_CAP_FASTCLOCK; |
Gabor Juhos | 0e707a9 | 2011-06-21 11:23:31 +0200 | [diff] [blame] | 2424 | if (!AR_SREV_9330(ah) && !AR_SREV_9485(ah)) |
Vasanthakumar Thiagarajan | 784ad50 | 2010-12-06 04:27:40 -0800 | [diff] [blame] | 2425 | pCap->hw_caps |= ATH9K_HW_CAP_LDPC; |
| 2426 | |
Vasanthakumar Thiagarajan | ceb2644 | 2010-04-15 17:38:25 -0400 | [diff] [blame] | 2427 | pCap->rx_hp_qdepth = ATH9K_HW_RX_HP_QDEPTH; |
| 2428 | pCap->rx_lp_qdepth = ATH9K_HW_RX_LP_QDEPTH; |
| 2429 | pCap->rx_status_len = sizeof(struct ar9003_rxs); |
Vasanthakumar Thiagarajan | 162c3be | 2010-04-15 17:38:41 -0400 | [diff] [blame] | 2430 | pCap->tx_desc_len = sizeof(struct ar9003_txc); |
Vasanthakumar Thiagarajan | 5088c2f | 2010-04-15 17:39:34 -0400 | [diff] [blame] | 2431 | pCap->txs_len = sizeof(struct ar9003_txs); |
Luis R. Rodriguez | 6f48101 | 2011-01-20 17:47:39 -0800 | [diff] [blame] | 2432 | if (!ah->config.paprd_disable && |
| 2433 | ah->eep_ops->get_eeprom(ah, EEP_PAPRD)) |
Felix Fietkau | 4935250 | 2010-06-12 00:33:59 -0400 | [diff] [blame] | 2434 | pCap->hw_caps |= ATH9K_HW_CAP_PAPRD; |
Vasanthakumar Thiagarajan | 162c3be | 2010-04-15 17:38:41 -0400 | [diff] [blame] | 2435 | } else { |
| 2436 | pCap->tx_desc_len = sizeof(struct ath_desc); |
Felix Fietkau | a949b17 | 2011-07-09 11:12:47 +0700 | [diff] [blame] | 2437 | if (AR_SREV_9280_20(ah)) |
Felix Fietkau | 6b42e8d | 2010-04-26 15:04:35 -0400 | [diff] [blame] | 2438 | pCap->hw_caps |= ATH9K_HW_CAP_FASTCLOCK; |
Vasanthakumar Thiagarajan | ceb2644 | 2010-04-15 17:38:25 -0400 | [diff] [blame] | 2439 | } |
Vasanthakumar Thiagarajan | 1adf02f | 2010-04-15 17:38:24 -0400 | [diff] [blame] | 2440 | |
Vasanthakumar Thiagarajan | 6c84ce0 | 2010-04-15 17:39:16 -0400 | [diff] [blame] | 2441 | if (AR_SREV_9300_20_OR_LATER(ah)) |
| 2442 | pCap->hw_caps |= ATH9K_HW_CAP_RAC_SUPPORTED; |
| 2443 | |
Senthil Balasubramanian | 6ee63f5 | 2010-11-10 05:03:16 -0800 | [diff] [blame] | 2444 | if (AR_SREV_9300_20_OR_LATER(ah)) |
| 2445 | ah->ent_mode = REG_READ(ah, AR_ENT_OTP); |
| 2446 | |
Felix Fietkau | a42acef | 2010-09-22 12:34:54 +0200 | [diff] [blame] | 2447 | if (AR_SREV_9287_11_OR_LATER(ah) || AR_SREV_9271(ah)) |
Vasanthakumar Thiagarajan | 6473d24 | 2010-05-13 18:42:38 -0700 | [diff] [blame] | 2448 | pCap->hw_caps |= ATH9K_HW_CAP_SGI_20; |
| 2449 | |
Vasanthakumar Thiagarajan | 754dc53 | 2010-09-02 01:34:41 -0700 | [diff] [blame] | 2450 | if (AR_SREV_9285(ah)) |
| 2451 | if (ah->eep_ops->get_eeprom(ah, EEP_MODAL_VER) >= 3) { |
| 2452 | ant_div_ctl1 = |
| 2453 | ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1); |
| 2454 | if ((ant_div_ctl1 & 0x1) && ((ant_div_ctl1 >> 3) & 0x1)) |
| 2455 | pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB; |
| 2456 | } |
Mohammed Shafi Shajakhan | ea066d5 | 2010-11-23 20:42:27 +0530 | [diff] [blame] | 2457 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 2458 | if (ah->eep_ops->get_eeprom(ah, EEP_CHAIN_MASK_REDUCE)) |
| 2459 | pCap->hw_caps |= ATH9K_HW_CAP_APM; |
| 2460 | } |
| 2461 | |
| 2462 | |
Gabor Juhos | 431da56 | 2011-06-21 11:23:41 +0200 | [diff] [blame] | 2463 | if (AR_SREV_9330(ah) || AR_SREV_9485(ah)) { |
Mohammed Shafi Shajakhan | 21d2c63 | 2011-05-13 20:29:31 +0530 | [diff] [blame] | 2464 | ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1); |
| 2465 | /* |
| 2466 | * enable the diversity-combining algorithm only when |
| 2467 | * both enable_lna_div and enable_fast_div are set |
| 2468 | * Table for Diversity |
| 2469 | * ant_div_alt_lnaconf bit 0-1 |
| 2470 | * ant_div_main_lnaconf bit 2-3 |
| 2471 | * ant_div_alt_gaintb bit 4 |
| 2472 | * ant_div_main_gaintb bit 5 |
| 2473 | * enable_ant_div_lnadiv bit 6 |
| 2474 | * enable_ant_fast_div bit 7 |
| 2475 | */ |
| 2476 | if ((ant_div_ctl1 >> 0x6) == 0x3) |
| 2477 | pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB; |
| 2478 | } |
Vasanthakumar Thiagarajan | 754dc53 | 2010-09-02 01:34:41 -0700 | [diff] [blame] | 2479 | |
Vasanthakumar Thiagarajan | 8060e16 | 2010-12-06 04:27:42 -0800 | [diff] [blame] | 2480 | if (AR_SREV_9485_10(ah)) { |
| 2481 | pCap->pcie_lcr_extsync_en = true; |
| 2482 | pCap->pcie_lcr_offset = 0x80; |
| 2483 | } |
| 2484 | |
Zefir Kurtisi | 9a66af3 | 2011-12-14 20:16:33 -0800 | [diff] [blame] | 2485 | if (ath9k_hw_dfs_tested(ah)) |
| 2486 | pCap->hw_caps |= ATH9K_HW_CAP_DFS; |
| 2487 | |
Vasanthakumar Thiagarajan | 47c80de | 2010-12-06 04:27:43 -0800 | [diff] [blame] | 2488 | tx_chainmask = pCap->tx_chainmask; |
| 2489 | rx_chainmask = pCap->rx_chainmask; |
| 2490 | while (tx_chainmask || rx_chainmask) { |
| 2491 | if (tx_chainmask & BIT(0)) |
| 2492 | pCap->max_txchains++; |
| 2493 | if (rx_chainmask & BIT(0)) |
| 2494 | pCap->max_rxchains++; |
| 2495 | |
| 2496 | tx_chainmask >>= 1; |
| 2497 | rx_chainmask >>= 1; |
| 2498 | } |
| 2499 | |
Rajkumar Manoharan | 8ad74c4 | 2011-10-13 11:00:38 +0530 | [diff] [blame] | 2500 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 2501 | ah->enabled_cals |= TX_IQ_CAL; |
Mohammed Shafi Shajakhan | 6fea593 | 2011-11-30 21:01:31 +0530 | [diff] [blame] | 2502 | if (AR_SREV_9485_OR_LATER(ah)) |
Rajkumar Manoharan | 8ad74c4 | 2011-10-13 11:00:38 +0530 | [diff] [blame] | 2503 | ah->enabled_cals |= TX_IQ_ON_AGC_CAL; |
| 2504 | } |
Mohammed Shafi Shajakhan | 3789d59 | 2012-03-09 12:01:55 +0530 | [diff] [blame] | 2505 | |
| 2506 | if (AR_SREV_9462(ah)) { |
| 2507 | |
| 2508 | if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE)) |
| 2509 | pCap->hw_caps |= ATH9K_HW_CAP_MCI; |
| 2510 | |
| 2511 | if (AR_SREV_9462_20(ah)) |
| 2512 | pCap->hw_caps |= ATH9K_HW_CAP_RTT; |
| 2513 | |
| 2514 | } |
| 2515 | |
Rajkumar Manoharan | 324c74a | 2011-10-13 11:00:41 +0530 | [diff] [blame] | 2516 | |
Gabor Juhos | a9a29ce | 2009-11-27 12:01:35 +0100 | [diff] [blame] | 2517 | return 0; |
Luis R. Rodriguez | 6f25542 | 2008-10-03 15:45:27 -0700 | [diff] [blame] | 2518 | } |
| 2519 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2520 | /****************************/ |
| 2521 | /* GPIO / RFKILL / Antennae */ |
| 2522 | /****************************/ |
| 2523 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2524 | static void ath9k_hw_gpio_cfg_output_mux(struct ath_hw *ah, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2525 | u32 gpio, u32 type) |
| 2526 | { |
| 2527 | int addr; |
| 2528 | u32 gpio_shift, tmp; |
| 2529 | |
| 2530 | if (gpio > 11) |
| 2531 | addr = AR_GPIO_OUTPUT_MUX3; |
| 2532 | else if (gpio > 5) |
| 2533 | addr = AR_GPIO_OUTPUT_MUX2; |
| 2534 | else |
| 2535 | addr = AR_GPIO_OUTPUT_MUX1; |
| 2536 | |
| 2537 | gpio_shift = (gpio % 6) * 5; |
| 2538 | |
| 2539 | if (AR_SREV_9280_20_OR_LATER(ah) |
| 2540 | || (addr != AR_GPIO_OUTPUT_MUX1)) { |
| 2541 | REG_RMW(ah, addr, (type << gpio_shift), |
| 2542 | (0x1f << gpio_shift)); |
| 2543 | } else { |
| 2544 | tmp = REG_READ(ah, addr); |
| 2545 | tmp = ((tmp & 0x1F0) << 1) | (tmp & ~0x1F0); |
| 2546 | tmp &= ~(0x1f << gpio_shift); |
| 2547 | tmp |= (type << gpio_shift); |
| 2548 | REG_WRITE(ah, addr, tmp); |
| 2549 | } |
| 2550 | } |
| 2551 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2552 | void ath9k_hw_cfg_gpio_input(struct ath_hw *ah, u32 gpio) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2553 | { |
| 2554 | u32 gpio_shift; |
| 2555 | |
Luis R. Rodriguez | 9680e8a | 2009-09-13 23:28:00 -0700 | [diff] [blame] | 2556 | BUG_ON(gpio >= ah->caps.num_gpio_pins); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2557 | |
Sujith | 88c1f4f | 2010-06-30 14:46:31 +0530 | [diff] [blame] | 2558 | if (AR_DEVID_7010(ah)) { |
| 2559 | gpio_shift = gpio; |
| 2560 | REG_RMW(ah, AR7010_GPIO_OE, |
| 2561 | (AR7010_GPIO_OE_AS_INPUT << gpio_shift), |
| 2562 | (AR7010_GPIO_OE_MASK << gpio_shift)); |
| 2563 | return; |
| 2564 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2565 | |
Sujith | 88c1f4f | 2010-06-30 14:46:31 +0530 | [diff] [blame] | 2566 | gpio_shift = gpio << 1; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2567 | REG_RMW(ah, |
| 2568 | AR_GPIO_OE_OUT, |
| 2569 | (AR_GPIO_OE_OUT_DRV_NO << gpio_shift), |
| 2570 | (AR_GPIO_OE_OUT_DRV << gpio_shift)); |
| 2571 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2572 | EXPORT_SYMBOL(ath9k_hw_cfg_gpio_input); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2573 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2574 | u32 ath9k_hw_gpio_get(struct ath_hw *ah, u32 gpio) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2575 | { |
Senthil Balasubramanian | cb33c41 | 2008-12-24 18:03:58 +0530 | [diff] [blame] | 2576 | #define MS_REG_READ(x, y) \ |
| 2577 | (MS(REG_READ(ah, AR_GPIO_IN_OUT), x##_GPIO_IN_VAL) & (AR_GPIO_BIT(y))) |
| 2578 | |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2579 | if (gpio >= ah->caps.num_gpio_pins) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2580 | return 0xffffffff; |
| 2581 | |
Sujith | 88c1f4f | 2010-06-30 14:46:31 +0530 | [diff] [blame] | 2582 | if (AR_DEVID_7010(ah)) { |
| 2583 | u32 val; |
| 2584 | val = REG_READ(ah, AR7010_GPIO_IN); |
| 2585 | return (MS(val, AR7010_GPIO_IN_VAL) & AR_GPIO_BIT(gpio)) == 0; |
| 2586 | } else if (AR_SREV_9300_20_OR_LATER(ah)) |
Vasanthakumar Thiagarajan | 9306990 | 2010-11-30 23:24:09 -0800 | [diff] [blame] | 2587 | return (MS(REG_READ(ah, AR_GPIO_IN), AR9300_GPIO_IN_VAL) & |
| 2588 | AR_GPIO_BIT(gpio)) != 0; |
Felix Fietkau | 783dfca | 2010-04-15 17:38:11 -0400 | [diff] [blame] | 2589 | else if (AR_SREV_9271(ah)) |
Sujith | 5b5fa35 | 2010-03-17 14:25:15 +0530 | [diff] [blame] | 2590 | return MS_REG_READ(AR9271, gpio) != 0; |
Felix Fietkau | a42acef | 2010-09-22 12:34:54 +0200 | [diff] [blame] | 2591 | else if (AR_SREV_9287_11_OR_LATER(ah)) |
Vivek Natarajan | ac88b6e | 2009-07-23 10:59:57 +0530 | [diff] [blame] | 2592 | return MS_REG_READ(AR9287, gpio) != 0; |
Felix Fietkau | e17f83e | 2010-09-22 12:34:53 +0200 | [diff] [blame] | 2593 | else if (AR_SREV_9285_12_OR_LATER(ah)) |
Senthil Balasubramanian | cb33c41 | 2008-12-24 18:03:58 +0530 | [diff] [blame] | 2594 | return MS_REG_READ(AR9285, gpio) != 0; |
Felix Fietkau | 7a37081 | 2010-09-22 12:34:52 +0200 | [diff] [blame] | 2595 | else if (AR_SREV_9280_20_OR_LATER(ah)) |
Senthil Balasubramanian | cb33c41 | 2008-12-24 18:03:58 +0530 | [diff] [blame] | 2596 | return MS_REG_READ(AR928X, gpio) != 0; |
| 2597 | else |
| 2598 | return MS_REG_READ(AR, gpio) != 0; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2599 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2600 | EXPORT_SYMBOL(ath9k_hw_gpio_get); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2601 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2602 | void ath9k_hw_cfg_output(struct ath_hw *ah, u32 gpio, |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2603 | u32 ah_signal_type) |
| 2604 | { |
| 2605 | u32 gpio_shift; |
| 2606 | |
Sujith | 88c1f4f | 2010-06-30 14:46:31 +0530 | [diff] [blame] | 2607 | if (AR_DEVID_7010(ah)) { |
| 2608 | gpio_shift = gpio; |
| 2609 | REG_RMW(ah, AR7010_GPIO_OE, |
| 2610 | (AR7010_GPIO_OE_AS_OUTPUT << gpio_shift), |
| 2611 | (AR7010_GPIO_OE_MASK << gpio_shift)); |
| 2612 | return; |
| 2613 | } |
| 2614 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2615 | ath9k_hw_gpio_cfg_output_mux(ah, gpio, ah_signal_type); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2616 | gpio_shift = 2 * gpio; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2617 | REG_RMW(ah, |
| 2618 | AR_GPIO_OE_OUT, |
| 2619 | (AR_GPIO_OE_OUT_DRV_ALL << gpio_shift), |
| 2620 | (AR_GPIO_OE_OUT_DRV << gpio_shift)); |
| 2621 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2622 | EXPORT_SYMBOL(ath9k_hw_cfg_output); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2623 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2624 | void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2625 | { |
Sujith | 88c1f4f | 2010-06-30 14:46:31 +0530 | [diff] [blame] | 2626 | if (AR_DEVID_7010(ah)) { |
| 2627 | val = val ? 0 : 1; |
| 2628 | REG_RMW(ah, AR7010_GPIO_OUT, ((val&1) << gpio), |
| 2629 | AR_GPIO_BIT(gpio)); |
| 2630 | return; |
| 2631 | } |
| 2632 | |
Sujith | 5b5fa35 | 2010-03-17 14:25:15 +0530 | [diff] [blame] | 2633 | if (AR_SREV_9271(ah)) |
| 2634 | val = ~val; |
| 2635 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2636 | REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio), |
| 2637 | AR_GPIO_BIT(gpio)); |
| 2638 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2639 | EXPORT_SYMBOL(ath9k_hw_set_gpio); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2640 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2641 | void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2642 | { |
| 2643 | REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7)); |
| 2644 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2645 | EXPORT_SYMBOL(ath9k_hw_setantenna); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2646 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2647 | /*********************/ |
| 2648 | /* General Operation */ |
| 2649 | /*********************/ |
| 2650 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2651 | u32 ath9k_hw_getrxfilter(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2652 | { |
| 2653 | u32 bits = REG_READ(ah, AR_RX_FILTER); |
| 2654 | u32 phybits = REG_READ(ah, AR_PHY_ERR); |
| 2655 | |
| 2656 | if (phybits & AR_PHY_ERR_RADAR) |
| 2657 | bits |= ATH9K_RX_FILTER_PHYRADAR; |
| 2658 | if (phybits & (AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING)) |
| 2659 | bits |= ATH9K_RX_FILTER_PHYERR; |
| 2660 | |
| 2661 | return bits; |
| 2662 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2663 | EXPORT_SYMBOL(ath9k_hw_getrxfilter); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2664 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2665 | void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2666 | { |
| 2667 | u32 phybits; |
| 2668 | |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2669 | ENABLE_REGWRITE_BUFFER(ah); |
| 2670 | |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 2671 | if (AR_SREV_9462(ah)) |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 2672 | bits |= ATH9K_RX_FILTER_CONTROL_WRAPPER; |
| 2673 | |
Sujith | 7ea310b | 2009-09-03 12:08:43 +0530 | [diff] [blame] | 2674 | REG_WRITE(ah, AR_RX_FILTER, bits); |
| 2675 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2676 | phybits = 0; |
| 2677 | if (bits & ATH9K_RX_FILTER_PHYRADAR) |
| 2678 | phybits |= AR_PHY_ERR_RADAR; |
| 2679 | if (bits & ATH9K_RX_FILTER_PHYERR) |
| 2680 | phybits |= AR_PHY_ERR_OFDM_TIMING | AR_PHY_ERR_CCK_TIMING; |
| 2681 | REG_WRITE(ah, AR_PHY_ERR, phybits); |
| 2682 | |
| 2683 | if (phybits) |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 2684 | REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2685 | else |
Felix Fietkau | ca7a4de | 2011-03-23 20:57:26 +0100 | [diff] [blame] | 2686 | REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA); |
Sujith | 7d0d0df | 2010-04-16 11:53:57 +0530 | [diff] [blame] | 2687 | |
| 2688 | REGWRITE_BUFFER_FLUSH(ah); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2689 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2690 | EXPORT_SYMBOL(ath9k_hw_setrxfilter); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2691 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2692 | bool ath9k_hw_phy_disable(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2693 | { |
Senthil Balasubramanian | 63a75b9 | 2009-09-18 15:07:03 +0530 | [diff] [blame] | 2694 | if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM)) |
| 2695 | return false; |
| 2696 | |
| 2697 | ath9k_hw_init_pll(ah, NULL); |
Felix Fietkau | 8efa7a8 | 2012-03-14 16:40:23 +0100 | [diff] [blame] | 2698 | ah->htc_reset_init = true; |
Senthil Balasubramanian | 63a75b9 | 2009-09-18 15:07:03 +0530 | [diff] [blame] | 2699 | return true; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2700 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2701 | EXPORT_SYMBOL(ath9k_hw_phy_disable); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2702 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2703 | bool ath9k_hw_disable(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2704 | { |
Luis R. Rodriguez | 9ecdef4 | 2009-09-09 21:10:09 -0700 | [diff] [blame] | 2705 | if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2706 | return false; |
| 2707 | |
Senthil Balasubramanian | 63a75b9 | 2009-09-18 15:07:03 +0530 | [diff] [blame] | 2708 | if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_COLD)) |
| 2709 | return false; |
| 2710 | |
| 2711 | ath9k_hw_init_pll(ah, NULL); |
| 2712 | return true; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2713 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2714 | EXPORT_SYMBOL(ath9k_hw_disable); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2715 | |
Felix Fietkau | ca2c68c | 2011-10-08 20:06:20 +0200 | [diff] [blame] | 2716 | static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2717 | { |
Felix Fietkau | ca2c68c | 2011-10-08 20:06:20 +0200 | [diff] [blame] | 2718 | enum eeprom_param gain_param; |
Felix Fietkau | 9c204b4 | 2011-07-27 15:01:05 +0200 | [diff] [blame] | 2719 | |
Felix Fietkau | ca2c68c | 2011-10-08 20:06:20 +0200 | [diff] [blame] | 2720 | if (IS_CHAN_2GHZ(chan)) |
| 2721 | gain_param = EEP_ANTENNA_GAIN_2G; |
| 2722 | else |
| 2723 | gain_param = EEP_ANTENNA_GAIN_5G; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2724 | |
Felix Fietkau | ca2c68c | 2011-10-08 20:06:20 +0200 | [diff] [blame] | 2725 | return ah->eep_ops->get_eeprom(ah, gain_param); |
| 2726 | } |
| 2727 | |
| 2728 | void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan) |
| 2729 | { |
| 2730 | struct ath_regulatory *reg = ath9k_hw_regulatory(ah); |
| 2731 | struct ieee80211_channel *channel; |
| 2732 | int chan_pwr, new_pwr, max_gain; |
| 2733 | int ant_gain, ant_reduction = 0; |
| 2734 | |
| 2735 | if (!chan) |
| 2736 | return; |
| 2737 | |
| 2738 | channel = chan->chan; |
| 2739 | chan_pwr = min_t(int, channel->max_power * 2, MAX_RATE_POWER); |
| 2740 | new_pwr = min_t(int, chan_pwr, reg->power_limit); |
| 2741 | max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2; |
| 2742 | |
| 2743 | ant_gain = get_antenna_gain(ah, chan); |
| 2744 | if (ant_gain > max_gain) |
| 2745 | ant_reduction = ant_gain - max_gain; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2746 | |
Vasanthakumar Thiagarajan | 8fbff4b | 2009-05-08 17:54:51 -0700 | [diff] [blame] | 2747 | ah->eep_ops->set_txpower(ah, chan, |
Felix Fietkau | ca2c68c | 2011-10-08 20:06:20 +0200 | [diff] [blame] | 2748 | ath9k_regd_get_ctl(reg, chan), |
| 2749 | ant_reduction, new_pwr, false); |
| 2750 | } |
| 2751 | |
| 2752 | void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test) |
| 2753 | { |
| 2754 | struct ath_regulatory *reg = ath9k_hw_regulatory(ah); |
| 2755 | struct ath9k_channel *chan = ah->curchan; |
| 2756 | struct ieee80211_channel *channel = chan->chan; |
| 2757 | |
Dan Carpenter | 48ef5c4 | 2011-10-17 10:28:23 +0300 | [diff] [blame] | 2758 | reg->power_limit = min_t(u32, limit, MAX_RATE_POWER); |
Felix Fietkau | ca2c68c | 2011-10-08 20:06:20 +0200 | [diff] [blame] | 2759 | if (test) |
| 2760 | channel->max_power = MAX_RATE_POWER / 2; |
| 2761 | |
| 2762 | ath9k_hw_apply_txpower(ah, chan); |
| 2763 | |
| 2764 | if (test) |
| 2765 | channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2766 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2767 | EXPORT_SYMBOL(ath9k_hw_set_txpowerlimit); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2768 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2769 | void ath9k_hw_setopmode(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2770 | { |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2771 | ath9k_hw_set_operating_mode(ah, ah->opmode); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2772 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2773 | EXPORT_SYMBOL(ath9k_hw_setopmode); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2774 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2775 | void ath9k_hw_setmcastfilter(struct ath_hw *ah, u32 filter0, u32 filter1) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2776 | { |
| 2777 | REG_WRITE(ah, AR_MCAST_FIL0, filter0); |
| 2778 | REG_WRITE(ah, AR_MCAST_FIL1, filter1); |
| 2779 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2780 | EXPORT_SYMBOL(ath9k_hw_setmcastfilter); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2781 | |
Luis R. Rodriguez | f2b2143 | 2009-09-10 08:50:20 -0700 | [diff] [blame] | 2782 | void ath9k_hw_write_associd(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2783 | { |
Luis R. Rodriguez | 1510718 | 2009-09-10 09:22:37 -0700 | [diff] [blame] | 2784 | struct ath_common *common = ath9k_hw_common(ah); |
| 2785 | |
| 2786 | REG_WRITE(ah, AR_BSS_ID0, get_unaligned_le32(common->curbssid)); |
| 2787 | REG_WRITE(ah, AR_BSS_ID1, get_unaligned_le16(common->curbssid + 4) | |
| 2788 | ((common->curaid & 0x3fff) << AR_BSS_ID1_AID_S)); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2789 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2790 | EXPORT_SYMBOL(ath9k_hw_write_associd); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2791 | |
Benoit Papillault | 1c0fc65 | 2010-04-16 00:07:26 +0200 | [diff] [blame] | 2792 | #define ATH9K_MAX_TSF_READ 10 |
| 2793 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2794 | u64 ath9k_hw_gettsf64(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2795 | { |
Benoit Papillault | 1c0fc65 | 2010-04-16 00:07:26 +0200 | [diff] [blame] | 2796 | u32 tsf_lower, tsf_upper1, tsf_upper2; |
| 2797 | int i; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2798 | |
Benoit Papillault | 1c0fc65 | 2010-04-16 00:07:26 +0200 | [diff] [blame] | 2799 | tsf_upper1 = REG_READ(ah, AR_TSF_U32); |
| 2800 | for (i = 0; i < ATH9K_MAX_TSF_READ; i++) { |
| 2801 | tsf_lower = REG_READ(ah, AR_TSF_L32); |
| 2802 | tsf_upper2 = REG_READ(ah, AR_TSF_U32); |
| 2803 | if (tsf_upper2 == tsf_upper1) |
| 2804 | break; |
| 2805 | tsf_upper1 = tsf_upper2; |
| 2806 | } |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2807 | |
Benoit Papillault | 1c0fc65 | 2010-04-16 00:07:26 +0200 | [diff] [blame] | 2808 | WARN_ON( i == ATH9K_MAX_TSF_READ ); |
| 2809 | |
| 2810 | return (((u64)tsf_upper1 << 32) | tsf_lower); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2811 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2812 | EXPORT_SYMBOL(ath9k_hw_gettsf64); |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2813 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2814 | void ath9k_hw_settsf64(struct ath_hw *ah, u64 tsf64) |
Alina Friedrichsen | 27abe06 | 2009-01-23 05:44:21 +0100 | [diff] [blame] | 2815 | { |
Alina Friedrichsen | 27abe06 | 2009-01-23 05:44:21 +0100 | [diff] [blame] | 2816 | REG_WRITE(ah, AR_TSF_L32, tsf64 & 0xffffffff); |
Alina Friedrichsen | b9a1619 | 2009-03-02 23:28:38 +0100 | [diff] [blame] | 2817 | REG_WRITE(ah, AR_TSF_U32, (tsf64 >> 32) & 0xffffffff); |
Alina Friedrichsen | 27abe06 | 2009-01-23 05:44:21 +0100 | [diff] [blame] | 2818 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2819 | EXPORT_SYMBOL(ath9k_hw_settsf64); |
Alina Friedrichsen | 27abe06 | 2009-01-23 05:44:21 +0100 | [diff] [blame] | 2820 | |
Sujith | cbe61d8 | 2009-02-09 13:27:12 +0530 | [diff] [blame] | 2821 | void ath9k_hw_reset_tsf(struct ath_hw *ah) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2822 | { |
Gabor Juhos | f9b604f | 2009-06-21 00:02:15 +0200 | [diff] [blame] | 2823 | if (!ath9k_hw_wait(ah, AR_SLP32_MODE, AR_SLP32_TSF_WRITE_STATUS, 0, |
| 2824 | AH_TSF_WRITE_TIMEOUT)) |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 2825 | ath_dbg(ath9k_hw_common(ah), RESET, |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 2826 | "AR_SLP32_TSF_WRITE_STATUS limit exceeded\n"); |
Gabor Juhos | f9b604f | 2009-06-21 00:02:15 +0200 | [diff] [blame] | 2827 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2828 | REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2829 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2830 | EXPORT_SYMBOL(ath9k_hw_reset_tsf); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2831 | |
Sujith | 54e4cec | 2009-08-07 09:45:09 +0530 | [diff] [blame] | 2832 | void ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2833 | { |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2834 | if (setting) |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2835 | ah->misc_mode |= AR_PCU_TX_ADD_TSF; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2836 | else |
Sujith | 2660b81 | 2009-02-09 13:27:26 +0530 | [diff] [blame] | 2837 | ah->misc_mode &= ~AR_PCU_TX_ADD_TSF; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2838 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2839 | EXPORT_SYMBOL(ath9k_hw_set_tsfadjust); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2840 | |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 2841 | void ath9k_hw_set11nmac2040(struct ath_hw *ah) |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2842 | { |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 2843 | struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2844 | u32 macmode; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2845 | |
Luis R. Rodriguez | 25c56ee | 2009-09-13 23:04:44 -0700 | [diff] [blame] | 2846 | if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca) |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2847 | macmode = AR_2040_JOINED_RX_CLEAR; |
| 2848 | else |
| 2849 | macmode = 0; |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2850 | |
Sujith | f1dc560 | 2008-10-29 10:16:30 +0530 | [diff] [blame] | 2851 | REG_WRITE(ah, AR_2040_MODE, macmode); |
Luis R. Rodriguez | f078f20 | 2008-08-04 00:16:41 -0700 | [diff] [blame] | 2852 | } |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2853 | |
| 2854 | /* HW Generic timers configuration */ |
| 2855 | |
| 2856 | static const struct ath_gen_timer_configuration gen_tmr_configuration[] = |
| 2857 | { |
| 2858 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, |
| 2859 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, |
| 2860 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, |
| 2861 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, |
| 2862 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, |
| 2863 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, |
| 2864 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, |
| 2865 | {AR_NEXT_NDP_TIMER, AR_NDP_PERIOD, AR_TIMER_MODE, 0x0080}, |
| 2866 | {AR_NEXT_NDP2_TIMER, AR_NDP2_PERIOD, AR_NDP2_TIMER_MODE, 0x0001}, |
| 2867 | {AR_NEXT_NDP2_TIMER + 1*4, AR_NDP2_PERIOD + 1*4, |
| 2868 | AR_NDP2_TIMER_MODE, 0x0002}, |
| 2869 | {AR_NEXT_NDP2_TIMER + 2*4, AR_NDP2_PERIOD + 2*4, |
| 2870 | AR_NDP2_TIMER_MODE, 0x0004}, |
| 2871 | {AR_NEXT_NDP2_TIMER + 3*4, AR_NDP2_PERIOD + 3*4, |
| 2872 | AR_NDP2_TIMER_MODE, 0x0008}, |
| 2873 | {AR_NEXT_NDP2_TIMER + 4*4, AR_NDP2_PERIOD + 4*4, |
| 2874 | AR_NDP2_TIMER_MODE, 0x0010}, |
| 2875 | {AR_NEXT_NDP2_TIMER + 5*4, AR_NDP2_PERIOD + 5*4, |
| 2876 | AR_NDP2_TIMER_MODE, 0x0020}, |
| 2877 | {AR_NEXT_NDP2_TIMER + 6*4, AR_NDP2_PERIOD + 6*4, |
| 2878 | AR_NDP2_TIMER_MODE, 0x0040}, |
| 2879 | {AR_NEXT_NDP2_TIMER + 7*4, AR_NDP2_PERIOD + 7*4, |
| 2880 | AR_NDP2_TIMER_MODE, 0x0080} |
| 2881 | }; |
| 2882 | |
| 2883 | /* HW generic timer primitives */ |
| 2884 | |
| 2885 | /* compute and clear index of rightmost 1 */ |
| 2886 | static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask) |
| 2887 | { |
| 2888 | u32 b; |
| 2889 | |
| 2890 | b = *mask; |
| 2891 | b &= (0-b); |
| 2892 | *mask &= ~b; |
| 2893 | b *= debruijn32; |
| 2894 | b >>= 27; |
| 2895 | |
| 2896 | return timer_table->gen_timer_index[b]; |
| 2897 | } |
| 2898 | |
Felix Fietkau | dd347f2 | 2011-03-22 21:54:17 +0100 | [diff] [blame] | 2899 | u32 ath9k_hw_gettsf32(struct ath_hw *ah) |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2900 | { |
| 2901 | return REG_READ(ah, AR_TSF_L32); |
| 2902 | } |
Felix Fietkau | dd347f2 | 2011-03-22 21:54:17 +0100 | [diff] [blame] | 2903 | EXPORT_SYMBOL(ath9k_hw_gettsf32); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2904 | |
| 2905 | struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah, |
| 2906 | void (*trigger)(void *), |
| 2907 | void (*overflow)(void *), |
| 2908 | void *arg, |
| 2909 | u8 timer_index) |
| 2910 | { |
| 2911 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; |
| 2912 | struct ath_gen_timer *timer; |
| 2913 | |
| 2914 | timer = kzalloc(sizeof(struct ath_gen_timer), GFP_KERNEL); |
| 2915 | |
| 2916 | if (timer == NULL) { |
Joe Perches | 3800276 | 2010-12-02 19:12:36 -0800 | [diff] [blame] | 2917 | ath_err(ath9k_hw_common(ah), |
| 2918 | "Failed to allocate memory for hw timer[%d]\n", |
| 2919 | timer_index); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2920 | return NULL; |
| 2921 | } |
| 2922 | |
| 2923 | /* allocate a hardware generic timer slot */ |
| 2924 | timer_table->timers[timer_index] = timer; |
| 2925 | timer->index = timer_index; |
| 2926 | timer->trigger = trigger; |
| 2927 | timer->overflow = overflow; |
| 2928 | timer->arg = arg; |
| 2929 | |
| 2930 | return timer; |
| 2931 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2932 | EXPORT_SYMBOL(ath_gen_timer_alloc); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2933 | |
Luis R. Rodriguez | cd9bf68 | 2009-09-13 02:08:34 -0700 | [diff] [blame] | 2934 | void ath9k_hw_gen_timer_start(struct ath_hw *ah, |
| 2935 | struct ath_gen_timer *timer, |
Vasanthakumar Thiagarajan | 788f687 | 2011-04-21 18:33:27 +0530 | [diff] [blame] | 2936 | u32 trig_timeout, |
Luis R. Rodriguez | cd9bf68 | 2009-09-13 02:08:34 -0700 | [diff] [blame] | 2937 | u32 timer_period) |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2938 | { |
| 2939 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; |
Vasanthakumar Thiagarajan | 788f687 | 2011-04-21 18:33:27 +0530 | [diff] [blame] | 2940 | u32 tsf, timer_next; |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2941 | |
| 2942 | BUG_ON(!timer_period); |
| 2943 | |
| 2944 | set_bit(timer->index, &timer_table->timer_mask.timer_bits); |
| 2945 | |
| 2946 | tsf = ath9k_hw_gettsf32(ah); |
| 2947 | |
Vasanthakumar Thiagarajan | 788f687 | 2011-04-21 18:33:27 +0530 | [diff] [blame] | 2948 | timer_next = tsf + trig_timeout; |
| 2949 | |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 2950 | ath_dbg(ath9k_hw_common(ah), HWTIMER, |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 2951 | "current tsf %x period %x timer_next %x\n", |
| 2952 | tsf, timer_period, timer_next); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2953 | |
| 2954 | /* |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2955 | * Program generic timer registers |
| 2956 | */ |
| 2957 | REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr, |
| 2958 | timer_next); |
| 2959 | REG_WRITE(ah, gen_tmr_configuration[timer->index].period_addr, |
| 2960 | timer_period); |
| 2961 | REG_SET_BIT(ah, gen_tmr_configuration[timer->index].mode_addr, |
| 2962 | gen_tmr_configuration[timer->index].mode_mask); |
| 2963 | |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 2964 | if (AR_SREV_9462(ah)) { |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 2965 | /* |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 2966 | * Starting from AR9462, each generic timer can select which tsf |
Senthil Balasubramanian | 2577c6e | 2011-09-13 22:38:18 +0530 | [diff] [blame] | 2967 | * to use. But we still follow the old rule, 0 - 7 use tsf and |
| 2968 | * 8 - 15 use tsf2. |
| 2969 | */ |
| 2970 | if ((timer->index < AR_GEN_TIMER_BANK_1_LEN)) |
| 2971 | REG_CLR_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL, |
| 2972 | (1 << timer->index)); |
| 2973 | else |
| 2974 | REG_SET_BIT(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL, |
| 2975 | (1 << timer->index)); |
| 2976 | } |
| 2977 | |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2978 | /* Enable both trigger and thresh interrupt masks */ |
| 2979 | REG_SET_BIT(ah, AR_IMR_S5, |
| 2980 | (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) | |
| 2981 | SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG))); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2982 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 2983 | EXPORT_SYMBOL(ath9k_hw_gen_timer_start); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2984 | |
Luis R. Rodriguez | cd9bf68 | 2009-09-13 02:08:34 -0700 | [diff] [blame] | 2985 | void ath9k_hw_gen_timer_stop(struct ath_hw *ah, struct ath_gen_timer *timer) |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 2986 | { |
| 2987 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; |
| 2988 | |
| 2989 | if ((timer->index < AR_FIRST_NDP_TIMER) || |
| 2990 | (timer->index >= ATH_MAX_GEN_TIMER)) { |
| 2991 | return; |
| 2992 | } |
| 2993 | |
| 2994 | /* Clear generic timer enable bits. */ |
| 2995 | REG_CLR_BIT(ah, gen_tmr_configuration[timer->index].mode_addr, |
| 2996 | gen_tmr_configuration[timer->index].mode_mask); |
| 2997 | |
| 2998 | /* Disable both trigger and thresh interrupt masks */ |
| 2999 | REG_CLR_BIT(ah, AR_IMR_S5, |
| 3000 | (SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_THRESH) | |
| 3001 | SM(AR_GENTMR_BIT(timer->index), AR_IMR_S5_GENTIMER_TRIG))); |
| 3002 | |
| 3003 | clear_bit(timer->index, &timer_table->timer_mask.timer_bits); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 3004 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 3005 | EXPORT_SYMBOL(ath9k_hw_gen_timer_stop); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 3006 | |
| 3007 | void ath_gen_timer_free(struct ath_hw *ah, struct ath_gen_timer *timer) |
| 3008 | { |
| 3009 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; |
| 3010 | |
| 3011 | /* free the hardware generic timer slot */ |
| 3012 | timer_table->timers[timer->index] = NULL; |
| 3013 | kfree(timer); |
| 3014 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 3015 | EXPORT_SYMBOL(ath_gen_timer_free); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 3016 | |
| 3017 | /* |
| 3018 | * Generic Timer Interrupts handling |
| 3019 | */ |
| 3020 | void ath_gen_timer_isr(struct ath_hw *ah) |
| 3021 | { |
| 3022 | struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; |
| 3023 | struct ath_gen_timer *timer; |
Luis R. Rodriguez | c46917b | 2009-09-13 02:42:02 -0700 | [diff] [blame] | 3024 | struct ath_common *common = ath9k_hw_common(ah); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 3025 | u32 trigger_mask, thresh_mask, index; |
| 3026 | |
| 3027 | /* get hardware generic timer interrupt status */ |
| 3028 | trigger_mask = ah->intr_gen_timer_trigger; |
| 3029 | thresh_mask = ah->intr_gen_timer_thresh; |
| 3030 | trigger_mask &= timer_table->timer_mask.val; |
| 3031 | thresh_mask &= timer_table->timer_mask.val; |
| 3032 | |
| 3033 | trigger_mask &= ~thresh_mask; |
| 3034 | |
| 3035 | while (thresh_mask) { |
| 3036 | index = rightmost_index(timer_table, &thresh_mask); |
| 3037 | timer = timer_table->timers[index]; |
| 3038 | BUG_ON(!timer); |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 3039 | ath_dbg(common, HWTIMER, "TSF overflow for Gen timer %d\n", |
| 3040 | index); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 3041 | timer->overflow(timer->arg); |
| 3042 | } |
| 3043 | |
| 3044 | while (trigger_mask) { |
| 3045 | index = rightmost_index(timer_table, &trigger_mask); |
| 3046 | timer = timer_table->timers[index]; |
| 3047 | BUG_ON(!timer); |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 3048 | ath_dbg(common, HWTIMER, |
Joe Perches | 226afe6 | 2010-12-02 19:12:37 -0800 | [diff] [blame] | 3049 | "Gen timer[%d] trigger\n", index); |
Vasanthakumar Thiagarajan | ff155a4 | 2009-08-26 21:08:49 +0530 | [diff] [blame] | 3050 | timer->trigger(timer->arg); |
| 3051 | } |
| 3052 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 3053 | EXPORT_SYMBOL(ath_gen_timer_isr); |
Luis R. Rodriguez | 2da4f01 | 2009-10-27 12:59:33 -0400 | [diff] [blame] | 3054 | |
Sujith | 05020d2 | 2010-03-17 14:25:23 +0530 | [diff] [blame] | 3055 | /********/ |
| 3056 | /* HTC */ |
| 3057 | /********/ |
| 3058 | |
Luis R. Rodriguez | 2da4f01 | 2009-10-27 12:59:33 -0400 | [diff] [blame] | 3059 | static struct { |
| 3060 | u32 version; |
| 3061 | const char * name; |
| 3062 | } ath_mac_bb_names[] = { |
| 3063 | /* Devices with external radios */ |
| 3064 | { AR_SREV_VERSION_5416_PCI, "5416" }, |
| 3065 | { AR_SREV_VERSION_5416_PCIE, "5418" }, |
| 3066 | { AR_SREV_VERSION_9100, "9100" }, |
| 3067 | { AR_SREV_VERSION_9160, "9160" }, |
| 3068 | /* Single-chip solutions */ |
| 3069 | { AR_SREV_VERSION_9280, "9280" }, |
| 3070 | { AR_SREV_VERSION_9285, "9285" }, |
Luis R. Rodriguez | 1115847 | 2009-10-27 12:59:35 -0400 | [diff] [blame] | 3071 | { AR_SREV_VERSION_9287, "9287" }, |
| 3072 | { AR_SREV_VERSION_9271, "9271" }, |
Luis R. Rodriguez | ec83903 | 2010-04-15 17:39:20 -0400 | [diff] [blame] | 3073 | { AR_SREV_VERSION_9300, "9300" }, |
Gabor Juhos | 2c8e593 | 2011-06-21 11:23:21 +0200 | [diff] [blame] | 3074 | { AR_SREV_VERSION_9330, "9330" }, |
Florian Fainelli | 397e5d5 | 2011-08-25 21:33:48 +0200 | [diff] [blame] | 3075 | { AR_SREV_VERSION_9340, "9340" }, |
Senthil Balasubramanian | 8f06ca2 | 2011-04-01 17:16:33 +0530 | [diff] [blame] | 3076 | { AR_SREV_VERSION_9485, "9485" }, |
Rajkumar Manoharan | 423e38e | 2011-10-13 11:00:44 +0530 | [diff] [blame] | 3077 | { AR_SREV_VERSION_9462, "9462" }, |
Luis R. Rodriguez | 2da4f01 | 2009-10-27 12:59:33 -0400 | [diff] [blame] | 3078 | }; |
| 3079 | |
| 3080 | /* For devices with external radios */ |
| 3081 | static struct { |
| 3082 | u16 version; |
| 3083 | const char * name; |
| 3084 | } ath_rf_names[] = { |
| 3085 | { 0, "5133" }, |
| 3086 | { AR_RAD5133_SREV_MAJOR, "5133" }, |
| 3087 | { AR_RAD5122_SREV_MAJOR, "5122" }, |
| 3088 | { AR_RAD2133_SREV_MAJOR, "2133" }, |
| 3089 | { AR_RAD2122_SREV_MAJOR, "2122" } |
| 3090 | }; |
| 3091 | |
| 3092 | /* |
| 3093 | * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown. |
| 3094 | */ |
Luis R. Rodriguez | f934c4d | 2009-10-27 12:59:34 -0400 | [diff] [blame] | 3095 | static const char *ath9k_hw_mac_bb_name(u32 mac_bb_version) |
Luis R. Rodriguez | 2da4f01 | 2009-10-27 12:59:33 -0400 | [diff] [blame] | 3096 | { |
| 3097 | int i; |
| 3098 | |
| 3099 | for (i=0; i<ARRAY_SIZE(ath_mac_bb_names); i++) { |
| 3100 | if (ath_mac_bb_names[i].version == mac_bb_version) { |
| 3101 | return ath_mac_bb_names[i].name; |
| 3102 | } |
| 3103 | } |
| 3104 | |
| 3105 | return "????"; |
| 3106 | } |
Luis R. Rodriguez | 2da4f01 | 2009-10-27 12:59:33 -0400 | [diff] [blame] | 3107 | |
| 3108 | /* |
| 3109 | * Return the RF name. "????" is returned if the RF is unknown. |
| 3110 | * Used for devices with external radios. |
| 3111 | */ |
Luis R. Rodriguez | f934c4d | 2009-10-27 12:59:34 -0400 | [diff] [blame] | 3112 | static const char *ath9k_hw_rf_name(u16 rf_version) |
Luis R. Rodriguez | 2da4f01 | 2009-10-27 12:59:33 -0400 | [diff] [blame] | 3113 | { |
| 3114 | int i; |
| 3115 | |
| 3116 | for (i=0; i<ARRAY_SIZE(ath_rf_names); i++) { |
| 3117 | if (ath_rf_names[i].version == rf_version) { |
| 3118 | return ath_rf_names[i].name; |
| 3119 | } |
| 3120 | } |
| 3121 | |
| 3122 | return "????"; |
| 3123 | } |
Luis R. Rodriguez | f934c4d | 2009-10-27 12:59:34 -0400 | [diff] [blame] | 3124 | |
| 3125 | void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len) |
| 3126 | { |
| 3127 | int used; |
| 3128 | |
| 3129 | /* chipsets >= AR9280 are single-chip */ |
Felix Fietkau | 7a37081 | 2010-09-22 12:34:52 +0200 | [diff] [blame] | 3130 | if (AR_SREV_9280_20_OR_LATER(ah)) { |
Luis R. Rodriguez | f934c4d | 2009-10-27 12:59:34 -0400 | [diff] [blame] | 3131 | used = snprintf(hw_name, len, |
| 3132 | "Atheros AR%s Rev:%x", |
| 3133 | ath9k_hw_mac_bb_name(ah->hw_version.macVersion), |
| 3134 | ah->hw_version.macRev); |
| 3135 | } |
| 3136 | else { |
| 3137 | used = snprintf(hw_name, len, |
| 3138 | "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x", |
| 3139 | ath9k_hw_mac_bb_name(ah->hw_version.macVersion), |
| 3140 | ah->hw_version.macRev, |
| 3141 | ath9k_hw_rf_name((ah->hw_version.analog5GhzRev & |
| 3142 | AR_RADIO_SREV_MAJOR)), |
| 3143 | ah->hw_version.phyRev); |
| 3144 | } |
| 3145 | |
| 3146 | hw_name[used] = '\0'; |
| 3147 | } |
| 3148 | EXPORT_SYMBOL(ath9k_hw_name); |