1 /* 2 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 3 * Copyright (c) 2002-2005 Atheros Communications, Inc. 4 * Copyright (c) 2008-2010, Atheros Communications Inc. 5 * 6 * Permission to use, copy, modify, and/or distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 * 18 * $FreeBSD$ 19 */ 20 21 #include "opt_ah.h" 22 23 #include "ah.h" 24 #include "ah_internal.h" 25 #include "ah_devid.h" 26 #ifdef AH_DEBUG 27 #include "ah_desc.h" /* NB: for HAL_PHYERR* */ 28 #endif 29 30 #include "ar5416/ar5416.h" 31 #include "ar5416/ar5416reg.h" 32 #include "ar5416/ar5416phy.h" 33 #include "ar5416/ar5416desc.h" /* AR5416_CONTTXMODE */ 34 #include "ar5416/ar5416_btcoex.h" 35 36 void 37 ar5416SetBTCoexInfo(struct ath_hal *ah, HAL_BT_COEX_INFO *btinfo) 38 { 39 struct ath_hal_5416 *ahp = AH5416(ah); 40 41 ahp->ah_btModule = btinfo->bt_module; 42 ahp->ah_btCoexConfigType = btinfo->bt_coex_config; 43 ahp->ah_btActiveGpioSelect = btinfo->bt_gpio_bt_active; 44 ahp->ah_btPriorityGpioSelect = btinfo->bt_gpio_bt_priority; 45 ahp->ah_wlanActiveGpioSelect = btinfo->bt_gpio_wlan_active; 46 ahp->ah_btActivePolarity = btinfo->bt_active_polarity; 47 ahp->ah_btCoexSingleAnt = btinfo->bt_single_ant; 48 ahp->ah_btWlanIsolation = btinfo->bt_isolation; 49 } 50 51 void 52 ar5416BTCoexConfig(struct ath_hal *ah, HAL_BT_COEX_CONFIG *btconf) 53 { 54 struct ath_hal_5416 *ahp = AH5416(ah); 55 HAL_BOOL rxClearPolarity = btconf->bt_rxclear_polarity; 56 57 /* 58 * For Kiwi and Osprey, the polarity of rx_clear is active high. 59 * The bt_rxclear_polarity flag from ath(4) needs to be inverted. 60 */ 61 if (AR_SREV_KIWI(ah)) { 62 rxClearPolarity = !btconf->bt_rxclear_polarity; 63 } 64 65 ahp->ah_btCoexMode = (ahp->ah_btCoexMode & AR_BT_QCU_THRESH) | 66 SM(btconf->bt_time_extend, AR_BT_TIME_EXTEND) | 67 SM(btconf->bt_txstate_extend, AR_BT_TXSTATE_EXTEND) | 68 SM(btconf->bt_txframe_extend, AR_BT_TX_FRAME_EXTEND) | 69 SM(btconf->bt_mode, AR_BT_MODE) | 70 SM(btconf->bt_quiet_collision, AR_BT_QUIET) | 71 SM(rxClearPolarity, AR_BT_RX_CLEAR_POLARITY) | 72 SM(btconf->bt_priority_time, AR_BT_PRIORITY_TIME) | 73 SM(btconf->bt_first_slot_time, AR_BT_FIRST_SLOT_TIME); 74 75 ahp->ah_btCoexMode2 |= SM(btconf->bt_hold_rxclear, 76 AR_BT_HOLD_RX_CLEAR); 77 78 if (ahp->ah_btCoexSingleAnt == AH_FALSE) { 79 /* Enable ACK to go out even though BT has higher priority. */ 80 ahp->ah_btCoexMode2 |= AR_BT_DISABLE_BT_ANT; 81 } 82 } 83 84 void 85 ar5416BTCoexSetQcuThresh(struct ath_hal *ah, int qnum) 86 { 87 struct ath_hal_5416 *ahp = AH5416(ah); 88 89 ahp->ah_btCoexMode |= SM(qnum, AR_BT_QCU_THRESH); 90 } 91 92 void 93 ar5416BTCoexSetWeights(struct ath_hal *ah, u_int32_t stompType) 94 { 95 struct ath_hal_5416 *ahp = AH5416(ah); 96 97 if (AR_SREV_KIWI_10_OR_LATER(ah)) { 98 /* TODO: TX RX separate is not enabled. */ 99 switch (stompType) { 100 case HAL_BT_COEX_STOMP_ALL: 101 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 102 ahp->ah_btCoexWLANWeight = AR5416_STOMP_ALL_WLAN_WGHT; 103 break; 104 case HAL_BT_COEX_STOMP_LOW: 105 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 106 ahp->ah_btCoexWLANWeight = AR5416_STOMP_LOW_WLAN_WGHT; 107 break; 108 case HAL_BT_COEX_STOMP_ALL_FORCE: 109 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 110 ahp->ah_btCoexWLANWeight = 111 AR5416_STOMP_ALL_FORCE_WLAN_WGHT; 112 break; 113 case HAL_BT_COEX_STOMP_LOW_FORCE: 114 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 115 ahp->ah_btCoexWLANWeight = 116 AR5416_STOMP_LOW_FORCE_WLAN_WGHT; 117 break; 118 case HAL_BT_COEX_STOMP_NONE: 119 case HAL_BT_COEX_NO_STOMP: 120 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 121 ahp->ah_btCoexWLANWeight = AR5416_STOMP_NONE_WLAN_WGHT; 122 break; 123 default: 124 /* There is a forceWeight from registry */ 125 ahp->ah_btCoexBTWeight = stompType & 0xffff; 126 ahp->ah_btCoexWLANWeight = stompType >> 16; 127 break; 128 } 129 } else { 130 switch (stompType) { 131 case HAL_BT_COEX_STOMP_ALL: 132 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 133 ahp->ah_btCoexWLANWeight = AR5416_STOMP_ALL_WLAN_WGHT; 134 break; 135 case HAL_BT_COEX_STOMP_LOW: 136 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 137 ahp->ah_btCoexWLANWeight = AR5416_STOMP_LOW_WLAN_WGHT; 138 break; 139 case HAL_BT_COEX_STOMP_ALL_FORCE: 140 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 141 ahp->ah_btCoexWLANWeight = 142 AR5416_STOMP_ALL_FORCE_WLAN_WGHT; 143 break; 144 case HAL_BT_COEX_STOMP_LOW_FORCE: 145 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 146 ahp->ah_btCoexWLANWeight = 147 AR5416_STOMP_LOW_FORCE_WLAN_WGHT; 148 break; 149 case HAL_BT_COEX_STOMP_NONE: 150 case HAL_BT_COEX_NO_STOMP: 151 ahp->ah_btCoexBTWeight = AR5416_BT_WGHT; 152 ahp->ah_btCoexWLANWeight = AR5416_STOMP_NONE_WLAN_WGHT; 153 break; 154 default: 155 /* There is a forceWeight from registry */ 156 ahp->ah_btCoexBTWeight = stompType & 0xffff; 157 ahp->ah_btCoexWLANWeight = stompType >> 16; 158 break; 159 } 160 } 161 } 162 163 void 164 ar5416BTCoexSetupBmissThresh(struct ath_hal *ah, u_int32_t thresh) 165 { 166 struct ath_hal_5416 *ahp = AH5416(ah); 167 168 ahp->ah_btCoexMode2 |= SM(thresh, AR_BT_BCN_MISS_THRESH); 169 } 170 171 /* 172 * There is no antenna diversity for Owl, Kiwi, etc. 173 * 174 * Kite will override this particular method. 175 */ 176 void 177 ar5416BTCoexAntennaDiversity(struct ath_hal *ah) 178 { 179 } 180 181 void 182 ar5416BTCoexSetParameter(struct ath_hal *ah, u_int32_t type, u_int32_t value) 183 { 184 struct ath_hal_5416 *ahp = AH5416(ah); 185 186 switch (type) { 187 case HAL_BT_COEX_SET_ACK_PWR: 188 if (value) { 189 ahp->ah_btCoexFlag |= HAL_BT_COEX_FLAG_LOW_ACK_PWR; 190 OS_REG_WRITE(ah, AR_TPC, HAL_BT_COEX_LOW_ACK_POWER); 191 } else { 192 ahp->ah_btCoexFlag &= ~HAL_BT_COEX_FLAG_LOW_ACK_PWR; 193 OS_REG_WRITE(ah, AR_TPC, HAL_BT_COEX_HIGH_ACK_POWER); 194 } 195 break; 196 case HAL_BT_COEX_ANTENNA_DIVERSITY: 197 /* This is overridden for Kite */ 198 break; 199 #if 0 200 case HAL_BT_COEX_LOWER_TX_PWR: 201 if (value) { 202 if ((ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_LOWER_TX_PWR) == 0) { 203 ahp->ah_btCoexFlag |= HAL_BT_COEX_FLAG_LOWER_TX_PWR; 204 AH_PRIVATE(ah)->ah_config.ath_hal_desc_tpc = 1; 205 ar5416SetTxPowerLimit(ah, AH_PRIVATE(ah)->ah_power_limit, AH_PRIVATE(ah)->ah_extra_txpow, 0); 206 } 207 } 208 else { 209 if (ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_LOWER_TX_PWR) { 210 ahp->ah_btCoexFlag &= ~HAL_BT_COEX_FLAG_LOWER_TX_PWR; 211 AH_PRIVATE(ah)->ah_config.ath_hal_desc_tpc = 0; 212 ar5416SetTxPowerLimit(ah, AH_PRIVATE(ah)->ah_power_limit, AH_PRIVATE(ah)->ah_extra_txpow, 0); 213 } 214 } 215 break; 216 #endif 217 default: 218 break; 219 } 220 } 221 222 void 223 ar5416BTCoexDisable(struct ath_hal *ah) 224 { 225 struct ath_hal_5416 *ahp = AH5416(ah); 226 227 /* Always drive rx_clear_external output as 0 */ 228 ar5416GpioSet(ah, ahp->ah_wlanActiveGpioSelect, 0); 229 ar5416GpioCfgOutput(ah, ahp->ah_wlanActiveGpioSelect, 230 HAL_GPIO_OUTPUT_MUX_AS_OUTPUT); 231 232 if (AR_SREV_9271(ah)) { 233 /* 234 * Set wlanActiveGpio to input when disabling BT-COEX to 235 * reduce power consumption 236 */ 237 ar5416GpioCfgInput(ah, ahp->ah_wlanActiveGpioSelect); 238 } 239 240 if (ahp->ah_btCoexSingleAnt == AH_TRUE) { 241 OS_REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE, 242 1); 243 OS_REG_RMW_FIELD(ah, AR_MISC_MODE, AR_PCU_BT_ANT_PREVENT_RX, 244 0); 245 } 246 247 OS_REG_WRITE(ah, AR_BT_COEX_MODE, AR_BT_QUIET | AR_BT_MODE); 248 OS_REG_WRITE(ah, AR_BT_COEX_WEIGHT, 0); 249 if (AR_SREV_KIWI_10_OR_LATER(ah)) 250 OS_REG_WRITE(ah, AR_BT_COEX_WEIGHT2, 0); 251 OS_REG_WRITE(ah, AR_BT_COEX_MODE2, 0); 252 253 ahp->ah_btCoexEnabled = AH_FALSE; 254 } 255 256 int 257 ar5416BTCoexEnable(struct ath_hal *ah) 258 { 259 struct ath_hal_5416 *ahp = AH5416(ah); 260 261 /* Program coex mode and weight registers to actually enable coex */ 262 OS_REG_WRITE(ah, AR_BT_COEX_MODE, ahp->ah_btCoexMode); 263 OS_REG_WRITE(ah, AR_BT_COEX_WEIGHT, 264 SM(ahp->ah_btCoexWLANWeight & 0xFFFF, AR_BT_WL_WGHT) | 265 SM(ahp->ah_btCoexBTWeight & 0xFFFF, AR_BT_BT_WGHT)); 266 if (AR_SREV_KIWI_10_OR_LATER(ah)) { 267 OS_REG_WRITE(ah, AR_BT_COEX_WEIGHT2, 268 SM(ahp->ah_btCoexWLANWeight >> 16, AR_BT_WL_WGHT)); 269 } 270 OS_REG_WRITE(ah, AR_BT_COEX_MODE2, ahp->ah_btCoexMode2); 271 272 /* Added Select GPIO5~8 instaed SPI */ 273 if (AR_SREV_9271(ah)) { 274 uint32_t val; 275 276 val = OS_REG_READ(ah, AR9271_CLOCK_CONTROL); 277 val &= 0xFFFFFEFF; 278 OS_REG_WRITE(ah, AR9271_CLOCK_CONTROL, val); 279 } 280 281 if (ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_LOW_ACK_PWR) 282 OS_REG_WRITE(ah, AR_TPC, HAL_BT_COEX_LOW_ACK_POWER); 283 else 284 OS_REG_WRITE(ah, AR_TPC, HAL_BT_COEX_HIGH_ACK_POWER); 285 286 if (ahp->ah_btCoexSingleAnt == AH_TRUE) { 287 OS_REG_RMW_FIELD(ah, AR_QUIET1, 288 AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1); 289 /* XXX should update miscMode? */ 290 OS_REG_RMW_FIELD(ah, AR_MISC_MODE, 291 AR_PCU_BT_ANT_PREVENT_RX, 1); 292 } else { 293 OS_REG_RMW_FIELD(ah, AR_QUIET1, 294 AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1); 295 /* XXX should update miscMode? */ 296 OS_REG_RMW_FIELD(ah, AR_MISC_MODE, 297 AR_PCU_BT_ANT_PREVENT_RX, 0); 298 } 299 300 if (ahp->ah_btCoexConfigType == HAL_BT_COEX_CFG_3WIRE) { 301 /* For 3-wire, configure the desired GPIO port for rx_clear */ 302 ar5416GpioCfgOutput(ah, ahp->ah_wlanActiveGpioSelect, 303 HAL_GPIO_OUTPUT_MUX_AS_WLAN_ACTIVE); 304 } else { 305 /* 306 * For 2-wire, configure the desired GPIO port 307 * for TX_FRAME output 308 */ 309 ar5416GpioCfgOutput(ah, ahp->ah_wlanActiveGpioSelect, 310 HAL_GPIO_OUTPUT_MUX_AS_TX_FRAME); 311 } 312 313 /* 314 * Enable a weak pull down on BT_ACTIVE. 315 * When BT device is disabled, BT_ACTIVE might be floating. 316 */ 317 OS_REG_RMW(ah, AR_GPIO_PDPU, 318 (0x2 << (ahp->ah_btActiveGpioSelect * 2)), 319 (0x3 << (ahp->ah_btActiveGpioSelect * 2))); 320 321 ahp->ah_btCoexEnabled = AH_TRUE; 322 323 return (0); 324 } 325 326 void 327 ar5416InitBTCoex(struct ath_hal *ah) 328 { 329 struct ath_hal_5416 *ahp = AH5416(ah); 330 331 HALDEBUG(ah, HAL_DEBUG_BT_COEX, 332 "%s: called; configType=%d\n", 333 __func__, 334 ahp->ah_btCoexConfigType); 335 336 if (ahp->ah_btCoexConfigType == HAL_BT_COEX_CFG_3WIRE) { 337 OS_REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, 338 (AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_BB | 339 AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB)); 340 341 /* 342 * Set input mux for bt_prority_async and 343 * bt_active_async to GPIO pins 344 */ 345 OS_REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1, 346 AR_GPIO_INPUT_MUX1_BT_ACTIVE, 347 ahp->ah_btActiveGpioSelect); 348 OS_REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1, 349 AR_GPIO_INPUT_MUX1_BT_PRIORITY, 350 ahp->ah_btPriorityGpioSelect); 351 352 /* 353 * Configure the desired GPIO ports for input 354 */ 355 ar5416GpioCfgInput(ah, ahp->ah_btActiveGpioSelect); 356 ar5416GpioCfgInput(ah, ahp->ah_btPriorityGpioSelect); 357 358 /* 359 * Configure the antenna diversity setup. 360 * It's a no-op for AR9287; AR9285 overrides this 361 * as required. 362 */ 363 AH5416(ah)->ah_btCoexSetDiversity(ah); 364 365 if (ahp->ah_btCoexEnabled) 366 ar5416BTCoexEnable(ah); 367 else 368 ar5416BTCoexDisable(ah); 369 } else if (ahp->ah_btCoexConfigType != HAL_BT_COEX_CFG_NONE) { 370 /* 2-wire */ 371 if (ahp->ah_btCoexEnabled) { 372 /* Connect bt_active_async to baseband */ 373 OS_REG_CLR_BIT(ah, AR_GPIO_INPUT_EN_VAL, 374 (AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_DEF | 375 AR_GPIO_INPUT_EN_VAL_BT_FREQUENCY_DEF)); 376 OS_REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, 377 AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB); 378 379 /* 380 * Set input mux for bt_prority_async and 381 * bt_active_async to GPIO pins 382 */ 383 OS_REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1, 384 AR_GPIO_INPUT_MUX1_BT_ACTIVE, 385 ahp->ah_btActiveGpioSelect); 386 387 /* Configure the desired GPIO ports for input */ 388 ar5416GpioCfgInput(ah, ahp->ah_btActiveGpioSelect); 389 390 /* Enable coexistence on initialization */ 391 ar5416BTCoexEnable(ah); 392 } 393 } 394 } 395