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ath9k_hw: Add support for btcoexistence in AR9300. 

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vivek Natarajan 2011-04-26 10:39:53 +05:30 committed by John W. Linville
parent 978f78bf71
commit a6ef530f2b
5 changed files with 75 additions and 14 deletions
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34
drivers/net/wireless/ath/ath9k/btcoex.c
View File

@ -51,6 +51,10 @@ void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum)
.bt_hold_rx_clear = true,
};
u32 i;
bool rxclear_polarity = ath_bt_config.bt_rxclear_polarity;
if (AR_SREV_9300_20_OR_LATER(ah))
rxclear_polarity = !ath_bt_config.bt_rxclear_polarity;
btcoex_hw->bt_coex_mode =
(btcoex_hw->bt_coex_mode & AR_BT_QCU_THRESH) |
@ -59,7 +63,7 @@ void ath9k_hw_init_btcoex_hw(struct ath_hw *ah, int qnum)
SM(ath_bt_config.bt_txframe_extend, AR_BT_TX_FRAME_EXTEND) |
SM(ath_bt_config.bt_mode, AR_BT_MODE) |
SM(ath_bt_config.bt_quiet_collision, AR_BT_QUIET) |
SM(ath_bt_config.bt_rxclear_polarity, AR_BT_RX_CLEAR_POLARITY) |
SM(rxclear_polarity, AR_BT_RX_CLEAR_POLARITY) |
SM(ath_bt_config.bt_priority_time, AR_BT_PRIORITY_TIME) |
SM(ath_bt_config.bt_first_slot_time, AR_BT_FIRST_SLOT_TIME) |
SM(qnum, AR_BT_QCU_THRESH);
@ -142,6 +146,7 @@ void ath9k_hw_btcoex_set_weight(struct ath_hw *ah,
}
EXPORT_SYMBOL(ath9k_hw_btcoex_set_weight);
static void ath9k_hw_btcoex_enable_3wire(struct ath_hw *ah)
{
struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw;
@ -152,9 +157,22 @@ static void ath9k_hw_btcoex_enable_3wire(struct ath_hw *ah)
* enable coex 3-wire
*/
REG_WRITE(ah, AR_BT_COEX_MODE, btcoex_hw->bt_coex_mode);
REG_WRITE(ah, AR_BT_COEX_WEIGHT, btcoex_hw->bt_coex_weights);
REG_WRITE(ah, AR_BT_COEX_MODE2, btcoex_hw->bt_coex_mode2);
if (AR_SREV_9300_20_OR_LATER(ah)) {
REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, ah->bt_coex_wlan_weight[0]);
REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, ah->bt_coex_wlan_weight[1]);
REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS0, ah->bt_coex_bt_weight[0]);
REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS1, ah->bt_coex_bt_weight[1]);
REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS2, ah->bt_coex_bt_weight[2]);
REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS3, ah->bt_coex_bt_weight[3]);
} else
REG_WRITE(ah, AR_BT_COEX_WEIGHT, btcoex_hw->bt_coex_weights);
if (AR_SREV_9271(ah)) {
val = REG_READ(ah, 0x50040);
val &= 0xFFFFFEFF;
@ -202,8 +220,18 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah)
if (btcoex_hw->scheme == ATH_BTCOEX_CFG_3WIRE) {
REG_WRITE(ah, AR_BT_COEX_MODE, AR_BT_QUIET | AR_BT_MODE);
REG_WRITE(ah, AR_BT_COEX_WEIGHT, 0);
REG_WRITE(ah, AR_BT_COEX_MODE2, 0);
if (AR_SREV_9300_20_OR_LATER(ah)) {
REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS0, 0);
REG_WRITE(ah, AR_BT_COEX_WL_WEIGHTS1, 0);
REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS0, 0);
REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS1, 0);
REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS2, 0);
REG_WRITE(ah, AR_BT_COEX_BT_WEIGHTS3, 0);
} else
REG_WRITE(ah, AR_BT_COEX_WEIGHT, 0);
}
ah->btcoex_hw.enabled = false;

10
drivers/net/wireless/ath/ath9k/btcoex.h
View File

@ -19,9 +19,13 @@
#include "hw.h"
#define ATH_WLANACTIVE_GPIO 5
#define ATH_BTACTIVE_GPIO 6
#define ATH_BTPRIORITY_GPIO 7
#define ATH_WLANACTIVE_GPIO_9280 5
#define ATH_BTACTIVE_GPIO_9280 6
#define ATH_BTPRIORITY_GPIO_9285 7
#define ATH_WLANACTIVE_GPIO_9300 5
#define ATH_BTACTIVE_GPIO_9300 4
#define ATH_BTPRIORITY_GPIO_9300 8
#define ATH_BTCOEX_DEF_BT_PERIOD 45
#define ATH_BTCOEX_DEF_DUTY_CYCLE 55

24
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -1956,15 +1956,23 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
else
pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
if (AR_SREV_9280_20_OR_LATER(ah) && common->btcoex_enabled) {
btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
if (AR_SREV_9285(ah)) {
if (common->btcoex_enabled) {
if (AR_SREV_9300_20_OR_LATER(ah)) {
btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO;
} else {
btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO_9300;
btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO_9300;
btcoex_hw->btpriority_gpio = ATH_BTPRIORITY_GPIO_9300;
} else if (AR_SREV_9280_20_OR_LATER(ah)) {
btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO_9280;
btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO_9280;
if (AR_SREV_9285(ah)) {
btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE;
btcoex_hw->btpriority_gpio =
ATH_BTPRIORITY_GPIO_9285;
} else {
btcoex_hw->scheme = ATH_BTCOEX_CFG_2WIRE;
}
}
} else {
btcoex_hw->scheme = ATH_BTCOEX_CFG_NONE;

5
drivers/net/wireless/ath/ath9k/hw.h
View File

@ -56,6 +56,9 @@
#define AT9285_COEX3WIRE_SA_SUBSYSID 0x30aa
#define AT9285_COEX3WIRE_DA_SUBSYSID 0x30ab
#define AR9300_NUM_BT_WEIGHTS 4
#define AR9300_NUM_WLAN_WEIGHTS 4
#define ATH_AMPDU_LIMIT_MAX (64 * 1024 - 1)
#define ATH_DEFAULT_NOISE_FLOOR -95
@ -772,6 +775,8 @@ struct ath_hw {
/* Bluetooth coexistance */
struct ath_btcoex_hw btcoex_hw;
u32 bt_coex_bt_weight[AR9300_NUM_BT_WEIGHTS];
u32 bt_coex_wlan_weight[AR9300_NUM_WLAN_WEIGHTS];
u32 intr_txqs;
u8 txchainmask;

16
drivers/net/wireless/ath/ath9k/reg.h
View File

@ -1709,6 +1709,22 @@ enum {
#define AR_BTCOEX_WL_WGHT 0xffff0000
#define AR_BTCOEX_WL_WGHT_S 16
#define AR_BT_COEX_WL_WEIGHTS0 0x8174
#define AR_BT_COEX_WL_WEIGHTS1 0x81c4
#define AR_BT_COEX_BT_WEIGHTS0 0x83ac
#define AR_BT_COEX_BT_WEIGHTS1 0x83b0
#define AR_BT_COEX_BT_WEIGHTS2 0x83b4
#define AR_BT_COEX_BT_WEIGHTS3 0x83b8
#define AR9300_BT_WGHT 0xcccc4444
#define AR9300_STOMP_ALL_WLAN_WGHT0 0xfffffff0
#define AR9300_STOMP_ALL_WLAN_WGHT1 0xfffffff0
#define AR9300_STOMP_LOW_WLAN_WGHT0 0x88888880
#define AR9300_STOMP_LOW_WLAN_WGHT1 0x88888880
#define AR9300_STOMP_NONE_WLAN_WGHT0 0x00000000
#define AR9300_STOMP_NONE_WLAN_WGHT1 0x00000000
#define AR_BT_COEX_MODE2 0x817c
#define AR_BT_BCN_MISS_THRESH 0x000000ff
#define AR_BT_BCN_MISS_THRESH_S 0