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ath9k: Mute BT properly 

Set The BT/WLAN priority weights correctly and make sure
that MCI_LNA_TAKE is sent only for cards that share
PA/LNA.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Sujith Manoharan 2015-02-16 10:50:01 +05:30 committed by Kalle Valo
parent ad1dc63872
commit 2f890caba6
2 changed files with 15 additions and 3 deletions
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13
drivers/net/wireless/ath/ath9k/ar9003_mci.c
View File

@ -771,8 +771,14 @@ exit:
static void ar9003_mci_mute_bt(struct ath_hw *ah)
{
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
/* disable all MCI messages */
REG_WRITE(ah, AR_MCI_MSG_ATTRIBUTES_TABLE, 0xffff0000);
REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS0, 0xffffffff);
REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS1, 0xffffffff);
REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS2, 0xffffffff);
REG_WRITE(ah, AR_BTCOEX_WL_WEIGHTS3, 0xffffffff);
REG_SET_BIT(ah, AR_MCI_TX_CTRL, AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
/* wait pending HW messages to flush out */
@ -783,9 +789,10 @@ static void ar9003_mci_mute_bt(struct ath_hw *ah)
* 1. reset not after resuming from full sleep
* 2. before reset MCI RX, to quiet BT and avoid MCI RX misalignment
*/
ar9003_mci_send_lna_take(ah, true);
udelay(5);
if (MCI_ANT_ARCH_PA_LNA_SHARED(mci)) {
ar9003_mci_send_lna_take(ah, true);
udelay(5);
}
ar9003_mci_send_sys_sleeping(ah, true);
}

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

@ -212,6 +212,11 @@
#define AR_BTCOEX_CTRL_SPDT_POLARITY 0x80000000
#define AR_BTCOEX_CTRL_SPDT_POLARITY_S 31
#define AR_BTCOEX_WL_WEIGHTS0 0x18b0
#define AR_BTCOEX_WL_WEIGHTS1 0x18b4
#define AR_BTCOEX_WL_WEIGHTS2 0x18b8
#define AR_BTCOEX_WL_WEIGHTS3 0x18bc
#define AR_BTCOEX_MAX_TXPWR(_x) (0x18c0 + ((_x) << 2))
#define AR_BTCOEX_WL_LNA 0x1940
#define AR_BTCOEX_RFGAIN_CTRL 0x1944