Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [diff] [blame] | 1 | /* |
Sujith Manoharan | 5b68138 | 2011-05-17 13:36:18 +0530 | [diff] [blame] | 2 | * Copyright (c) 2009-2011 Atheros Communications Inc. |
Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [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 | |
Paul Gortmaker | ee40fa0 | 2011-05-27 16:14:23 -0400 | [diff] [blame] | 17 | #include <linux/export.h> |
Luis R. Rodriguez | cfe8cba | 2009-09-13 23:39:31 -0700 | [diff] [blame] | 18 | #include "hw.h" |
Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [diff] [blame] | 19 | |
Luis R. Rodriguez | 8b4fc5b | 2009-09-09 15:24:02 -0700 | [diff] [blame] | 20 | enum ath_bt_mode { |
| 21 | ATH_BT_COEX_MODE_LEGACY, /* legacy rx_clear mode */ |
| 22 | ATH_BT_COEX_MODE_UNSLOTTED, /* untimed/unslotted mode */ |
| 23 | ATH_BT_COEX_MODE_SLOTTED, /* slotted mode */ |
Mohammed Shafi Shajakhan | 32b1076 | 2011-11-30 10:41:29 +0530 | [diff] [blame] | 24 | ATH_BT_COEX_MODE_DISABLED, /* coexistence disabled */ |
Luis R. Rodriguez | 8b4fc5b | 2009-09-09 15:24:02 -0700 | [diff] [blame] | 25 | }; |
| 26 | |
| 27 | struct ath_btcoex_config { |
| 28 | u8 bt_time_extend; |
| 29 | bool bt_txstate_extend; |
| 30 | bool bt_txframe_extend; |
| 31 | enum ath_bt_mode bt_mode; /* coexistence mode */ |
| 32 | bool bt_quiet_collision; |
| 33 | bool bt_rxclear_polarity; /* invert rx_clear as WLAN_ACTIVE*/ |
| 34 | u8 bt_priority_time; |
| 35 | u8 bt_first_slot_time; |
| 36 | bool bt_hold_rx_clear; |
| 37 | }; |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 38 | |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 39 | static const u32 ar9003_wlan_weights[ATH_BTCOEX_STOMP_MAX] |
| 40 | [AR9300_NUM_WLAN_WEIGHTS] = { |
| 41 | { 0xfffffff0, 0xfffffff0, 0xfffffff0, 0xfffffff0 }, /* STOMP_ALL */ |
| 42 | { 0x88888880, 0x88888880, 0x88888880, 0x88888880 }, /* STOMP_LOW */ |
| 43 | { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* STOMP_NONE */ |
| 44 | }; |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 45 | |
Rajkumar Manoharan | 8227bf4 | 2011-11-12 19:35:48 +0530 | [diff] [blame] | 46 | static const u32 ar9462_wlan_weights[ATH_BTCOEX_STOMP_MAX] |
| 47 | [AR9300_NUM_WLAN_WEIGHTS] = { |
| 48 | { 0x01017d01, 0x41414101, 0x41414101, 0x41414141 }, /* STOMP_ALL */ |
| 49 | { 0x01017d01, 0x3b3b3b01, 0x3b3b3b01, 0x3b3b3b3b }, /* STOMP_LOW */ |
| 50 | { 0x01017d01, 0x01010101, 0x01010101, 0x01010101 }, /* STOMP_NONE */ |
| 51 | { 0x01017d01, 0x013b0101, 0x3b3b0101, 0x3b3b013b }, /* STOMP_LOW_FTP */ |
| 52 | }; |
| 53 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 54 | void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum) |
Luis R. Rodriguez | af03abe | 2009-09-09 02:33:11 -0700 | [diff] [blame] | 55 | { |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 56 | struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; |
Luis R. Rodriguez | 8b4fc5b | 2009-09-09 15:24:02 -0700 | [diff] [blame] | 57 | const struct ath_btcoex_config ath_bt_config = { |
| 58 | .bt_time_extend = 0, |
| 59 | .bt_txstate_extend = true, |
| 60 | .bt_txframe_extend = true, |
| 61 | .bt_mode = ATH_BT_COEX_MODE_SLOTTED, |
| 62 | .bt_quiet_collision = true, |
| 63 | .bt_rxclear_polarity = true, |
| 64 | .bt_priority_time = 2, |
| 65 | .bt_first_slot_time = 5, |
| 66 | .bt_hold_rx_clear = true, |
| 67 | }; |
Rajkumar Manoharan | 02c5172 | 2011-07-17 11:38:49 +0530 | [diff] [blame] | 68 | u32 i, idx; |
Vivek Natarajan | a6ef530 | 2011-04-26 10:39:53 +0530 | [diff] [blame] | 69 | bool rxclear_polarity = ath_bt_config.bt_rxclear_polarity; |
| 70 | |
| 71 | if (AR_SREV_9300_20_OR_LATER(ah)) |
| 72 | rxclear_polarity = !ath_bt_config.bt_rxclear_polarity; |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 73 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 74 | btcoex_hw->bt_coex_mode = |
| 75 | (btcoex_hw->bt_coex_mode & AR_BT_QCU_THRESH) | |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 76 | SM(ath_bt_config.bt_time_extend, AR_BT_TIME_EXTEND) | |
| 77 | SM(ath_bt_config.bt_txstate_extend, AR_BT_TXSTATE_EXTEND) | |
| 78 | SM(ath_bt_config.bt_txframe_extend, AR_BT_TX_FRAME_EXTEND) | |
| 79 | SM(ath_bt_config.bt_mode, AR_BT_MODE) | |
| 80 | SM(ath_bt_config.bt_quiet_collision, AR_BT_QUIET) | |
Vivek Natarajan | a6ef530 | 2011-04-26 10:39:53 +0530 | [diff] [blame] | 81 | SM(rxclear_polarity, AR_BT_RX_CLEAR_POLARITY) | |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 82 | SM(ath_bt_config.bt_priority_time, AR_BT_PRIORITY_TIME) | |
| 83 | SM(ath_bt_config.bt_first_slot_time, AR_BT_FIRST_SLOT_TIME) | |
| 84 | SM(qnum, AR_BT_QCU_THRESH); |
| 85 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 86 | btcoex_hw->bt_coex_mode2 = |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 87 | SM(ath_bt_config.bt_hold_rx_clear, AR_BT_HOLD_RX_CLEAR) | |
| 88 | SM(ATH_BTCOEX_BMISS_THRESH, AR_BT_BCN_MISS_THRESH) | |
| 89 | AR_BT_DISABLE_BT_ANT; |
| 90 | |
Rajkumar Manoharan | 02c5172 | 2011-07-17 11:38:49 +0530 | [diff] [blame] | 91 | for (i = 0; i < 32; i++) { |
| 92 | idx = (debruijn32 << i) >> 27; |
| 93 | ah->hw_gen_timers.gen_timer_index[idx] = i; |
| 94 | } |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 95 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 96 | EXPORT_SYMBOL(ath9k_hw_init_btcoex_hw); |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 97 | |
Sujith Manoharan | d68475d | 2012-02-22 12:40:49 +0530 | [diff] [blame] | 98 | void ath9k_hw_btcoex_init_scheme(struct ath_hw *ah) |
| 99 | { |
| 100 | struct ath_common *common = ath9k_hw_common(ah); |
| 101 | struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; |
| 102 | |
| 103 | /* |
| 104 | * Check if BTCOEX is globally disabled. |
| 105 | */ |
| 106 | if (!common->btcoex_enabled) { |
| 107 | btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE; |
| 108 | return; |
| 109 | } |
| 110 | |
Rajkumar Manoharan | 0466e25 | 2012-04-19 19:13:52 +0530 | [diff] [blame] | 111 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
Sujith Manoharan | d68475d | 2012-02-22 12:40:49 +0530 | [diff] [blame] | 112 | btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE; |
| 113 | btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO_9300; |
| 114 | btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO_9300; |
| 115 | btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO_9300; |
| 116 | } else if (AR_SREV_9280_20_OR_LATER(ah)) { |
| 117 | btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO_9280; |
| 118 | btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO_9280; |
| 119 | |
| 120 | if (AR_SREV_9285(ah)) { |
| 121 | btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE; |
| 122 | btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO_9285; |
| 123 | } else { |
| 124 | btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE; |
| 125 | } |
| 126 | } |
| 127 | } |
| 128 | EXPORT_SYMBOL(ath9k_hw_btcoex_init_scheme); |
| 129 | |
Luis R. Rodriguez | 75d7839 | 2009-09-09 04:00:10 -0700 | [diff] [blame] | 130 | void ath9k_hw_btcoex_init_2wire(struct ath_hw *ah) |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 131 | { |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 132 | struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 133 | |
| 134 | /* connect bt_active to baseband */ |
| 135 | REG_CLR_BIT(ah, AR_GPIO_INPUT_EN_VAL, |
| 136 | (AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_DEF | |
| 137 | AR_GPIO_INPUT_EN_VAL_BT_FREQUENCY_DEF)); |
| 138 | |
| 139 | REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, |
| 140 | AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB); |
| 141 | |
| 142 | /* Set input mux for bt_active to gpio pin */ |
| 143 | REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1, |
| 144 | AR_GPIO_INPUT_MUX1_BT_ACTIVE, |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 145 | btcoex_hw->btactive_gpio); |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 146 | |
| 147 | /* Configure the desired gpio port for input */ |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 148 | ath9k_hw_cfg_gpio_input(ah, btcoex_hw->btactive_gpio); |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 149 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 150 | EXPORT_SYMBOL(ath9k_hw_btcoex_init_2wire); |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 151 | |
Luis R. Rodriguez | 75d7839 | 2009-09-09 04:00:10 -0700 | [diff] [blame] | 152 | void ath9k_hw_btcoex_init_3wire(struct ath_hw *ah) |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 153 | { |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 154 | struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 155 | |
| 156 | /* btcoex 3-wire */ |
| 157 | REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, |
| 158 | (AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_BB | |
| 159 | AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB)); |
| 160 | |
| 161 | /* Set input mux for bt_prority_async and |
| 162 | * bt_active_async to GPIO pins */ |
| 163 | REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1, |
| 164 | AR_GPIO_INPUT_MUX1_BT_ACTIVE, |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 165 | btcoex_hw->btactive_gpio); |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 166 | |
| 167 | REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1, |
| 168 | AR_GPIO_INPUT_MUX1_BT_PRIORITY, |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 169 | btcoex_hw->btpriority_gpio); |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 170 | |
| 171 | /* Configure the desired GPIO ports for input */ |
| 172 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 173 | ath9k_hw_cfg_gpio_input(ah, btcoex_hw->btactive_gpio); |
| 174 | ath9k_hw_cfg_gpio_input(ah, btcoex_hw->btpriority_gpio); |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 175 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 176 | EXPORT_SYMBOL(ath9k_hw_btcoex_init_3wire); |
Luis R. Rodriguez | 7a2f0f5 | 2009-09-09 02:54:40 -0700 | [diff] [blame] | 177 | |
Sujith Manoharan | d3c83ac | 2012-02-22 12:40:15 +0530 | [diff] [blame] | 178 | void ath9k_hw_btcoex_init_mci(struct ath_hw *ah) |
| 179 | { |
| 180 | ah->btcoex_hw.mci.ready = false; |
| 181 | ah->btcoex_hw.mci.bt_state = 0; |
| 182 | ah->btcoex_hw.mci.bt_ver_major = 3; |
| 183 | ah->btcoex_hw.mci.bt_ver_minor = 0; |
| 184 | ah->btcoex_hw.mci.bt_version_known = false; |
| 185 | ah->btcoex_hw.mci.update_2g5g = true; |
| 186 | ah->btcoex_hw.mci.is_2g = true; |
| 187 | ah->btcoex_hw.mci.wlan_channels_update = false; |
| 188 | ah->btcoex_hw.mci.wlan_channels[0] = 0x00000000; |
| 189 | ah->btcoex_hw.mci.wlan_channels[1] = 0xffffffff; |
| 190 | ah->btcoex_hw.mci.wlan_channels[2] = 0xffffffff; |
| 191 | ah->btcoex_hw.mci.wlan_channels[3] = 0x7fffffff; |
| 192 | ah->btcoex_hw.mci.query_bt = true; |
| 193 | ah->btcoex_hw.mci.unhalt_bt_gpm = true; |
| 194 | ah->btcoex_hw.mci.halted_bt_gpm = false; |
| 195 | ah->btcoex_hw.mci.need_flush_btinfo = false; |
| 196 | ah->btcoex_hw.mci.wlan_cal_seq = 0; |
| 197 | ah->btcoex_hw.mci.wlan_cal_done = 0; |
| 198 | ah->btcoex_hw.mci.config = 0x2201; |
| 199 | } |
| 200 | EXPORT_SYMBOL(ath9k_hw_btcoex_init_mci); |
| 201 | |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 202 | static void ath9k_hw_btcoex_enable_2wire(struct ath_hw *ah) |
| 203 | { |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 204 | struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 205 | |
| 206 | /* Configure the desired GPIO port for TX_FRAME output */ |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 207 | ath9k_hw_cfg_output(ah, btcoex_hw->wlanactive_gpio, |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 208 | AR_GPIO_OUTPUT_MUX_AS_TX_FRAME); |
| 209 | } |
| 210 | |
Luis R. Rodriguez | 5e19729 | 2009-09-09 15:15:55 -0700 | [diff] [blame] | 211 | void ath9k_hw_btcoex_set_weight(struct ath_hw *ah, |
| 212 | u32 bt_weight, |
| 213 | u32 wlan_weight) |
| 214 | { |
| 215 | struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; |
| 216 | |
| 217 | btcoex_hw->bt_coex_weights = SM(bt_weight, AR_BTCOEX_BT_WGHT) | |
| 218 | SM(wlan_weight, AR_BTCOEX_WL_WGHT); |
| 219 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 220 | EXPORT_SYMBOL(ath9k_hw_btcoex_set_weight); |
Luis R. Rodriguez | 5e19729 | 2009-09-09 15:15:55 -0700 | [diff] [blame] | 221 | |
Vivek Natarajan | a6ef530 | 2011-04-26 10:39:53 +0530 | [diff] [blame] | 222 | |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 223 | static void ath9k_hw_btcoex_enable_3wire(struct ath_hw *ah) |
| 224 | { |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 225 | struct ath_btcoex_hw *btcoex = &ah->btcoex_hw; |
Vivek Natarajan | 21cb987 | 2010-08-18 19:57:49 +0530 | [diff] [blame] | 226 | u32 val; |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 227 | int i; |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 228 | |
| 229 | /* |
| 230 | * Program coex mode and weight registers to |
| 231 | * enable coex 3-wire |
| 232 | */ |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 233 | REG_WRITE(ah, AR_BT_COEX_MODE, btcoex->bt_coex_mode); |
| 234 | REG_WRITE(ah, AR_BT_COEX_MODE2, btcoex->bt_coex_mode2); |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 235 | |
Vivek Natarajan | a6ef530 | 2011-04-26 10:39:53 +0530 | [diff] [blame] | 236 | |
| 237 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 238 | REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, btcoex->wlan_weight[0]); |
| 239 | REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, btcoex->wlan_weight[1]); |
| 240 | for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) |
| 241 | REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS(i), |
| 242 | btcoex->bt_weight[i]); |
Vivek Natarajan | a6ef530 | 2011-04-26 10:39:53 +0530 | [diff] [blame] | 243 | } else |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 244 | REG_WRITE(ah, AR_BT_COEX_WEIGHT, btcoex->bt_coex_weights); |
Vivek Natarajan | a6ef530 | 2011-04-26 10:39:53 +0530 | [diff] [blame] | 245 | |
| 246 | |
| 247 | |
Vivek Natarajan | 21cb987 | 2010-08-18 19:57:49 +0530 | [diff] [blame] | 248 | if (AR_SREV_9271(ah)) { |
| 249 | val = REG_READ(ah, 0x50040); |
| 250 | val &= 0xFFFFFEFF; |
| 251 | REG_WRITE(ah, 0x50040, val); |
| 252 | } |
| 253 | |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 254 | REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1); |
| 255 | REG_RMW_FIELD(ah, AR_PCU_MISC, AR_PCU_BT_ANT_PREVENT_RX, 0); |
| 256 | |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 257 | ath9k_hw_cfg_output(ah, btcoex->wlanactive_gpio, |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 258 | AR_GPIO_OUTPUT_MUX_AS_RX_CLEAR_EXTERNAL); |
| 259 | } |
| 260 | |
Rajkumar Manoharan | 8227bf4 | 2011-11-12 19:35:48 +0530 | [diff] [blame] | 261 | static void ath9k_hw_btcoex_enable_mci(struct ath_hw *ah) |
| 262 | { |
| 263 | struct ath_btcoex_hw *btcoex = &ah->btcoex_hw; |
| 264 | int i; |
| 265 | |
| 266 | for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) |
| 267 | REG_WRITE(ah, AR_MCI_COEX_WL_WEIGHTS(i), |
| 268 | btcoex->wlan_weight[i]); |
| 269 | |
| 270 | REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1); |
| 271 | btcoex->enabled = true; |
| 272 | } |
| 273 | |
Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [diff] [blame] | 274 | void ath9k_hw_btcoex_enable(struct ath_hw *ah) |
| 275 | { |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 276 | struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; |
Vasanthakumar Thiagarajan | f14462c | 2009-08-26 21:08:46 +0530 | [diff] [blame] | 277 | |
Felix Fietkau | 8a30930 | 2011-12-17 16:47:56 +0100 | [diff] [blame] | 278 | switch (ath9k_hw_get_btcoex_scheme(ah)) { |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 279 | case ATH_BTCOEX_CFG_NONE: |
Felix Fietkau | 8a30930 | 2011-12-17 16:47:56 +0100 | [diff] [blame] | 280 | return; |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 281 | case ATH_BTCOEX_CFG_2WIRE: |
| 282 | ath9k_hw_btcoex_enable_2wire(ah); |
| 283 | break; |
| 284 | case ATH_BTCOEX_CFG_3WIRE: |
Rajkumar Manoharan | 0466e25 | 2012-04-19 19:13:52 +0530 | [diff] [blame] | 285 | if (AR_SREV_9462(ah)) { |
| 286 | ath9k_hw_btcoex_enable_mci(ah); |
| 287 | return; |
| 288 | } |
Luis R. Rodriguez | bc74bf8 | 2009-09-09 04:17:45 -0700 | [diff] [blame] | 289 | ath9k_hw_btcoex_enable_3wire(ah); |
| 290 | break; |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 291 | } |
| 292 | |
| 293 | REG_RMW(ah, AR_GPIO_PDPU, |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 294 | (0x2 << (btcoex_hw->btactive_gpio * 2)), |
| 295 | (0x3 << (btcoex_hw->btactive_gpio * 2))); |
Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [diff] [blame] | 296 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 297 | ah->btcoex_hw.enabled = true; |
Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [diff] [blame] | 298 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 299 | EXPORT_SYMBOL(ath9k_hw_btcoex_enable); |
Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [diff] [blame] | 300 | |
| 301 | void ath9k_hw_btcoex_disable(struct ath_hw *ah) |
| 302 | { |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 303 | struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 304 | int i; |
Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [diff] [blame] | 305 | |
Rajkumar Manoharan | 8227bf4 | 2011-11-12 19:35:48 +0530 | [diff] [blame] | 306 | btcoex_hw->enabled = false; |
Rajkumar Manoharan | 0466e25 | 2012-04-19 19:13:52 +0530 | [diff] [blame] | 307 | if (AR_SREV_9462(ah)) { |
Rajkumar Manoharan | 8227bf4 | 2011-11-12 19:35:48 +0530 | [diff] [blame] | 308 | ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); |
| 309 | for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) |
| 310 | REG_WRITE(ah, AR_MCI_COEX_WL_WEIGHTS(i), |
| 311 | btcoex_hw->wlan_weight[i]); |
Rajkumar Manoharan | 0466e25 | 2012-04-19 19:13:52 +0530 | [diff] [blame] | 312 | return; |
Rajkumar Manoharan | 8227bf4 | 2011-11-12 19:35:48 +0530 | [diff] [blame] | 313 | } |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 314 | ath9k_hw_set_gpio(ah, btcoex_hw->wlanactive_gpio, 0); |
Vasanthakumar Thiagarajan | f14462c | 2009-08-26 21:08:46 +0530 | [diff] [blame] | 315 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 316 | ath9k_hw_cfg_output(ah, btcoex_hw->wlanactive_gpio, |
Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [diff] [blame] | 317 | AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
| 318 | |
Luis R. Rodriguez | 766ec4a | 2009-09-09 14:52:02 -0700 | [diff] [blame] | 319 | if (btcoex_hw->scheme == ATH_BTCOEX_CFG_3WIRE) { |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 320 | REG_WRITE(ah, AR_BT_COEX_MODE, AR_BT_QUIET | AR_BT_MODE); |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 321 | REG_WRITE(ah, AR_BT_COEX_MODE2, 0); |
Vivek Natarajan | a6ef530 | 2011-04-26 10:39:53 +0530 | [diff] [blame] | 322 | |
| 323 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 324 | REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, 0); |
| 325 | REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, 0); |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 326 | for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) |
| 327 | REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS(i), 0); |
Vivek Natarajan | a6ef530 | 2011-04-26 10:39:53 +0530 | [diff] [blame] | 328 | } else |
| 329 | REG_WRITE(ah, AR_BT_COEX_WEIGHT, 0); |
| 330 | |
Vasanthakumar Thiagarajan | 1773912 | 2009-08-26 21:08:50 +0530 | [diff] [blame] | 331 | } |
Vasanthakumar Thiagarajan | 17d50d1 | 2009-08-26 21:08:44 +0530 | [diff] [blame] | 332 | } |
Luis R. Rodriguez | 7322fd1 | 2009-09-23 23:07:00 -0400 | [diff] [blame] | 333 | EXPORT_SYMBOL(ath9k_hw_btcoex_disable); |
Vivek Natarajan | 978f78b | 2011-04-26 10:39:52 +0530 | [diff] [blame] | 334 | |
| 335 | static void ar9003_btcoex_bt_stomp(struct ath_hw *ah, |
| 336 | enum ath_stomp_type stomp_type) |
| 337 | { |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 338 | struct ath_btcoex_hw *btcoex = &ah->btcoex_hw; |
Rajkumar Manoharan | 6995fb8 | 2012-06-04 16:28:52 +0530 | [diff] [blame] | 339 | const u32 *weight = ar9003_wlan_weights[stomp_type]; |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 340 | int i; |
Vivek Natarajan | 978f78b | 2011-04-26 10:39:52 +0530 | [diff] [blame] | 341 | |
Rajkumar Manoharan | 6995fb8 | 2012-06-04 16:28:52 +0530 | [diff] [blame] | 342 | if (AR_SREV_9462(ah)) { |
| 343 | if ((stomp_type == ATH_BTCOEX_STOMP_LOW) && |
| 344 | btcoex->mci.stomp_ftp) |
| 345 | stomp_type = ATH_BTCOEX_STOMP_LOW_FTP; |
| 346 | weight = ar9462_wlan_weights[stomp_type]; |
| 347 | } |
| 348 | |
Rajkumar Manoharan | 54f10b0 | 2011-11-12 19:35:47 +0530 | [diff] [blame] | 349 | for (i = 0; i < AR9300_NUM_WLAN_WEIGHTS; i++) { |
| 350 | btcoex->bt_weight[i] = AR9300_BT_WGHT; |
Rajkumar Manoharan | 8227bf4 | 2011-11-12 19:35:48 +0530 | [diff] [blame] | 351 | btcoex->wlan_weight[i] = weight[i]; |
Vivek Natarajan | 978f78b | 2011-04-26 10:39:52 +0530 | [diff] [blame] | 352 | } |
Vivek Natarajan | 978f78b | 2011-04-26 10:39:52 +0530 | [diff] [blame] | 353 | } |
| 354 | |
| 355 | /* |
| 356 | * Configures appropriate weight based on stomp type. |
| 357 | */ |
| 358 | void ath9k_hw_btcoex_bt_stomp(struct ath_hw *ah, |
| 359 | enum ath_stomp_type stomp_type) |
| 360 | { |
| 361 | if (AR_SREV_9300_20_OR_LATER(ah)) { |
| 362 | ar9003_btcoex_bt_stomp(ah, stomp_type); |
| 363 | return; |
| 364 | } |
| 365 | |
| 366 | switch (stomp_type) { |
| 367 | case ATH_BTCOEX_STOMP_ALL: |
| 368 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
| 369 | AR_STOMP_ALL_WLAN_WGHT); |
| 370 | break; |
| 371 | case ATH_BTCOEX_STOMP_LOW: |
| 372 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
| 373 | AR_STOMP_LOW_WLAN_WGHT); |
| 374 | break; |
| 375 | case ATH_BTCOEX_STOMP_NONE: |
| 376 | ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT, |
| 377 | AR_STOMP_NONE_WLAN_WGHT); |
| 378 | break; |
| 379 | default: |
Joe Perches | d2182b6 | 2011-12-15 14:55:53 -0800 | [diff] [blame] | 380 | ath_dbg(ath9k_hw_common(ah), BTCOEX, "Invalid Stomptype\n"); |
Vivek Natarajan | 978f78b | 2011-04-26 10:39:52 +0530 | [diff] [blame] | 381 | break; |
| 382 | } |
Vivek Natarajan | 978f78b | 2011-04-26 10:39:52 +0530 | [diff] [blame] | 383 | } |
| 384 | EXPORT_SYMBOL(ath9k_hw_btcoex_bt_stomp); |