/*-
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
* Copyright (c) 2002-2005 Atheros Communications, Inc.
* Copyright (c) 2008-2010, Atheros Communications Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $FreeBSD: releng/12.0/sys/dev/ath/ath_hal/ar5416/ar5416_btcoex.c 326695 2017-12-08 15:57:29Z pfg $
*/
#include "opt_ah.h"
#include "ah.h"
#include "ah_internal.h"
#include "ah_devid.h"
#ifdef AH_DEBUG
#include "ah_desc.h" /* NB: for HAL_PHYERR* */
#endif
#include "ar5416/ar5416.h"
#include "ar5416/ar5416reg.h"
#include "ar5416/ar5416phy.h"
#include "ar5416/ar5416desc.h" /* AR5416_CONTTXMODE */
#include "ar5416/ar5416_btcoex.h"
void
ar5416SetBTCoexInfo(struct ath_hal *ah, HAL_BT_COEX_INFO *btinfo)
{
struct ath_hal_5416 *ahp = AH5416(ah);
ahp->ah_btModule = btinfo->bt_module;
ahp->ah_btCoexConfigType = btinfo->bt_coex_config;
ahp->ah_btActiveGpioSelect = btinfo->bt_gpio_bt_active;
ahp->ah_btPriorityGpioSelect = btinfo->bt_gpio_bt_priority;
ahp->ah_wlanActiveGpioSelect = btinfo->bt_gpio_wlan_active;
ahp->ah_btActivePolarity = btinfo->bt_active_polarity;
ahp->ah_btCoexSingleAnt = btinfo->bt_single_ant;
ahp->ah_btWlanIsolation = btinfo->bt_isolation;
}
void
ar5416BTCoexConfig(struct ath_hal *ah, HAL_BT_COEX_CONFIG *btconf)
{
struct ath_hal_5416 *ahp = AH5416(ah);
HAL_BOOL rxClearPolarity = btconf->bt_rxclear_polarity;
/*
* For Kiwi and Osprey, the polarity of rx_clear is active high.
* The bt_rxclear_polarity flag from ath(4) needs to be inverted.
*/
if (AR_SREV_KIWI(ah)) {
rxClearPolarity = !btconf->bt_rxclear_polarity;
}
ahp->ah_btCoexMode = (ahp->ah_btCoexMode & AR_BT_QCU_THRESH) |
SM(btconf->bt_time_extend, AR_BT_TIME_EXTEND) |
SM(btconf->bt_txstate_extend, AR_BT_TXSTATE_EXTEND) |
SM(btconf->bt_txframe_extend, AR_BT_TX_FRAME_EXTEND) |
SM(btconf->bt_mode, AR_BT_MODE) |
SM(btconf->bt_quiet_collision, AR_BT_QUIET) |
SM(rxClearPolarity, AR_BT_RX_CLEAR_POLARITY) |
SM(btconf->bt_priority_time, AR_BT_PRIORITY_TIME) |
SM(btconf->bt_first_slot_time, AR_BT_FIRST_SLOT_TIME);
ahp->ah_btCoexMode2 |= SM(btconf->bt_hold_rxclear,
AR_BT_HOLD_RX_CLEAR);
if (ahp->ah_btCoexSingleAnt == AH_FALSE) {
/* Enable ACK to go out even though BT has higher priority. */
ahp->ah_btCoexMode2 |= AR_BT_DISABLE_BT_ANT;
}
}
void
ar5416BTCoexSetQcuThresh(struct ath_hal *ah, int qnum)
{
struct ath_hal_5416 *ahp = AH5416(ah);
ahp->ah_btCoexMode |= SM(qnum, AR_BT_QCU_THRESH);
}
void
ar5416BTCoexSetWeights(struct ath_hal *ah, u_int32_t stompType)
{
struct ath_hal_5416 *ahp = AH5416(ah);
if (AR_SREV_KIWI_10_OR_LATER(ah)) {
/* TODO: TX RX separate is not enabled. */
switch (stompType) {
case HAL_BT_COEX_STOMP_AUDIO:
/* XXX TODO */
case HAL_BT_COEX_STOMP_ALL:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight = AR5416_STOMP_ALL_WLAN_WGHT;
break;
case HAL_BT_COEX_STOMP_LOW:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight = AR5416_STOMP_LOW_WLAN_WGHT;
break;
case HAL_BT_COEX_STOMP_ALL_FORCE:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight =
AR5416_STOMP_ALL_FORCE_WLAN_WGHT;
break;
case HAL_BT_COEX_STOMP_LOW_FORCE:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight =
AR5416_STOMP_LOW_FORCE_WLAN_WGHT;
break;
case HAL_BT_COEX_STOMP_NONE:
case HAL_BT_COEX_NO_STOMP:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight = AR5416_STOMP_NONE_WLAN_WGHT;
break;
default:
/* There is a forceWeight from registry */
ahp->ah_btCoexBTWeight = stompType & 0xffff;
ahp->ah_btCoexWLANWeight = stompType >> 16;
break;
}
} else {
switch (stompType) {
case HAL_BT_COEX_STOMP_AUDIO:
/* XXX TODO */
case HAL_BT_COEX_STOMP_ALL:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight = AR5416_STOMP_ALL_WLAN_WGHT;
break;
case HAL_BT_COEX_STOMP_LOW:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight = AR5416_STOMP_LOW_WLAN_WGHT;
break;
case HAL_BT_COEX_STOMP_ALL_FORCE:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight =
AR5416_STOMP_ALL_FORCE_WLAN_WGHT;
break;
case HAL_BT_COEX_STOMP_LOW_FORCE:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight =
AR5416_STOMP_LOW_FORCE_WLAN_WGHT;
break;
case HAL_BT_COEX_STOMP_NONE:
case HAL_BT_COEX_NO_STOMP:
ahp->ah_btCoexBTWeight = AR5416_BT_WGHT;
ahp->ah_btCoexWLANWeight = AR5416_STOMP_NONE_WLAN_WGHT;
break;
default:
/* There is a forceWeight from registry */
ahp->ah_btCoexBTWeight = stompType & 0xffff;
ahp->ah_btCoexWLANWeight = stompType >> 16;
break;
}
}
}
void
ar5416BTCoexSetupBmissThresh(struct ath_hal *ah, u_int32_t thresh)
{
struct ath_hal_5416 *ahp = AH5416(ah);
ahp->ah_btCoexMode2 |= SM(thresh, AR_BT_BCN_MISS_THRESH);
}
/*
* There is no antenna diversity for Owl, Kiwi, etc.
*
* Kite will override this particular method.
*/
void
ar5416BTCoexAntennaDiversity(struct ath_hal *ah)
{
}
void
ar5416BTCoexSetParameter(struct ath_hal *ah, u_int32_t type, u_int32_t value)
{
struct ath_hal_5416 *ahp = AH5416(ah);
switch (type) {
case HAL_BT_COEX_SET_ACK_PWR:
if (value) {
ahp->ah_btCoexFlag |= HAL_BT_COEX_FLAG_LOW_ACK_PWR;
OS_REG_WRITE(ah, AR_TPC, HAL_BT_COEX_LOW_ACK_POWER);
} else {
ahp->ah_btCoexFlag &= ~HAL_BT_COEX_FLAG_LOW_ACK_PWR;
OS_REG_WRITE(ah, AR_TPC, HAL_BT_COEX_HIGH_ACK_POWER);
}
break;
case HAL_BT_COEX_ANTENNA_DIVERSITY:
/* This is overridden for Kite */
break;
#if 0
case HAL_BT_COEX_LOWER_TX_PWR:
if (value) {
if ((ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_LOWER_TX_PWR) == 0) {
ahp->ah_btCoexFlag |= HAL_BT_COEX_FLAG_LOWER_TX_PWR;
AH_PRIVATE(ah)->ah_config.ath_hal_desc_tpc = 1;
ar5416SetTxPowerLimit(ah, AH_PRIVATE(ah)->ah_power_limit, AH_PRIVATE(ah)->ah_extra_txpow, 0);
}
}
else {
if (ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_LOWER_TX_PWR) {
ahp->ah_btCoexFlag &= ~HAL_BT_COEX_FLAG_LOWER_TX_PWR;
AH_PRIVATE(ah)->ah_config.ath_hal_desc_tpc = 0;
ar5416SetTxPowerLimit(ah, AH_PRIVATE(ah)->ah_power_limit, AH_PRIVATE(ah)->ah_extra_txpow, 0);
}
}
break;
#endif
default:
break;
}
}
void
ar5416BTCoexDisable(struct ath_hal *ah)
{
struct ath_hal_5416 *ahp = AH5416(ah);
/* Always drive rx_clear_external output as 0 */
ar5416GpioSet(ah, ahp->ah_wlanActiveGpioSelect, 0);
ar5416GpioCfgOutput(ah, ahp->ah_wlanActiveGpioSelect,
HAL_GPIO_OUTPUT_MUX_AS_OUTPUT);
if (AR_SREV_9271(ah)) {
/*
* Set wlanActiveGpio to input when disabling BT-COEX to
* reduce power consumption
*/
ar5416GpioCfgInput(ah, ahp->ah_wlanActiveGpioSelect);
}
if (ahp->ah_btCoexSingleAnt == AH_TRUE) {
OS_REG_RMW_FIELD(ah, AR_QUIET1, AR_QUIET1_QUIET_ACK_CTS_ENABLE,
1);
OS_REG_RMW_FIELD(ah, AR_MISC_MODE, AR_PCU_BT_ANT_PREVENT_RX,
0);
}
OS_REG_WRITE(ah, AR_BT_COEX_MODE, AR_BT_QUIET | AR_BT_MODE);
OS_REG_WRITE(ah, AR_BT_COEX_WEIGHT, 0);
if (AR_SREV_KIWI_10_OR_LATER(ah))
OS_REG_WRITE(ah, AR_BT_COEX_WEIGHT2, 0);
OS_REG_WRITE(ah, AR_BT_COEX_MODE2, 0);
ahp->ah_btCoexEnabled = AH_FALSE;
}
int
ar5416BTCoexEnable(struct ath_hal *ah)
{
struct ath_hal_5416 *ahp = AH5416(ah);
/* Program coex mode and weight registers to actually enable coex */
OS_REG_WRITE(ah, AR_BT_COEX_MODE, ahp->ah_btCoexMode);
OS_REG_WRITE(ah, AR_BT_COEX_WEIGHT,
SM(ahp->ah_btCoexWLANWeight & 0xFFFF, AR_BT_WL_WGHT) |
SM(ahp->ah_btCoexBTWeight & 0xFFFF, AR_BT_BT_WGHT));
if (AR_SREV_KIWI_10_OR_LATER(ah)) {
OS_REG_WRITE(ah, AR_BT_COEX_WEIGHT2,
SM(ahp->ah_btCoexWLANWeight >> 16, AR_BT_WL_WGHT));
}
OS_REG_WRITE(ah, AR_BT_COEX_MODE2, ahp->ah_btCoexMode2);
/* Added Select GPIO5~8 instaed SPI */
if (AR_SREV_9271(ah)) {
uint32_t val;
val = OS_REG_READ(ah, AR9271_CLOCK_CONTROL);
val &= 0xFFFFFEFF;
OS_REG_WRITE(ah, AR9271_CLOCK_CONTROL, val);
}
if (ahp->ah_btCoexFlag & HAL_BT_COEX_FLAG_LOW_ACK_PWR)
OS_REG_WRITE(ah, AR_TPC, HAL_BT_COEX_LOW_ACK_POWER);
else
OS_REG_WRITE(ah, AR_TPC, HAL_BT_COEX_HIGH_ACK_POWER);
if (ahp->ah_btCoexSingleAnt == AH_TRUE) {
OS_REG_RMW_FIELD(ah, AR_QUIET1,
AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1);
/* XXX should update miscMode? */
OS_REG_RMW_FIELD(ah, AR_MISC_MODE,
AR_PCU_BT_ANT_PREVENT_RX, 1);
} else {
OS_REG_RMW_FIELD(ah, AR_QUIET1,
AR_QUIET1_QUIET_ACK_CTS_ENABLE, 1);
/* XXX should update miscMode? */
OS_REG_RMW_FIELD(ah, AR_MISC_MODE,
AR_PCU_BT_ANT_PREVENT_RX, 0);
}
if (ahp->ah_btCoexConfigType == HAL_BT_COEX_CFG_3WIRE) {
/* For 3-wire, configure the desired GPIO port for rx_clear */
ar5416GpioCfgOutput(ah, ahp->ah_wlanActiveGpioSelect,
HAL_GPIO_OUTPUT_MUX_AS_WLAN_ACTIVE);
} else {
/*
* For 2-wire, configure the desired GPIO port
* for TX_FRAME output
*/
ar5416GpioCfgOutput(ah, ahp->ah_wlanActiveGpioSelect,
HAL_GPIO_OUTPUT_MUX_AS_TX_FRAME);
}
/*
* Enable a weak pull down on BT_ACTIVE.
* When BT device is disabled, BT_ACTIVE might be floating.
*/
OS_REG_RMW(ah, AR_GPIO_PDPU,
(0x2 << (ahp->ah_btActiveGpioSelect * 2)),
(0x3 << (ahp->ah_btActiveGpioSelect * 2)));
ahp->ah_btCoexEnabled = AH_TRUE;
return (0);
}
void
ar5416InitBTCoex(struct ath_hal *ah)
{
struct ath_hal_5416 *ahp = AH5416(ah);
HALDEBUG(ah, HAL_DEBUG_BT_COEX,
"%s: called; configType=%d\n",
__func__,
ahp->ah_btCoexConfigType);
if (ahp->ah_btCoexConfigType == HAL_BT_COEX_CFG_3WIRE) {
OS_REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
(AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_BB |
AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB));
/*
* Set input mux for bt_prority_async and
* bt_active_async to GPIO pins
*/
OS_REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1,
AR_GPIO_INPUT_MUX1_BT_ACTIVE,
ahp->ah_btActiveGpioSelect);
OS_REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1,
AR_GPIO_INPUT_MUX1_BT_PRIORITY,
ahp->ah_btPriorityGpioSelect);
/*
* Configure the desired GPIO ports for input
*/
ar5416GpioCfgInput(ah, ahp->ah_btActiveGpioSelect);
ar5416GpioCfgInput(ah, ahp->ah_btPriorityGpioSelect);
/*
* Configure the antenna diversity setup.
* It's a no-op for AR9287; AR9285 overrides this
* as required.
*/
AH5416(ah)->ah_btCoexSetDiversity(ah);
if (ahp->ah_btCoexEnabled)
ar5416BTCoexEnable(ah);
else
ar5416BTCoexDisable(ah);
} else if (ahp->ah_btCoexConfigType != HAL_BT_COEX_CFG_NONE) {
/* 2-wire */
if (ahp->ah_btCoexEnabled) {
/* Connect bt_active_async to baseband */
OS_REG_CLR_BIT(ah, AR_GPIO_INPUT_EN_VAL,
(AR_GPIO_INPUT_EN_VAL_BT_PRIORITY_DEF |
AR_GPIO_INPUT_EN_VAL_BT_FREQUENCY_DEF));
OS_REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
AR_GPIO_INPUT_EN_VAL_BT_ACTIVE_BB);
/*
* Set input mux for bt_prority_async and
* bt_active_async to GPIO pins
*/
OS_REG_RMW_FIELD(ah, AR_GPIO_INPUT_MUX1,
AR_GPIO_INPUT_MUX1_BT_ACTIVE,
ahp->ah_btActiveGpioSelect);
/* Configure the desired GPIO ports for input */
ar5416GpioCfgInput(ah, ahp->ah_btActiveGpioSelect);
/* Enable coexistence on initialization */
ar5416BTCoexEnable(ah);
}
}
}
↑ V523 The 'then' statement is equivalent to the 'else' statement.