Commit 1010911e authored by Mohammed Shafi Shajakhan's avatar Mohammed Shafi Shajakhan Committed by John W. Linville
Browse files

ath9k_hw: MCI related changes in chip management 



send halt BT GPM if the chip is in network sleep and BT state
is awake

Cc: Wilson Tsao <wtsao@qca.qualcomm.com>
Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Signed-off-by: default avatarRajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: default avatarMohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 9e25365f

drivers/net/wireless/ath/ath9k/hw.c

+24 −0
Original line number Diff line number Diff line
@@ -1933,6 +1933,7 @@ static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip) 
bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)

{

	struct ath_common *common = ath9k_hw_common(ah);

	struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;

	int status = true, setChip = true;

	static const char *modes[] = {

		"AWAKE",
@@ -1950,12 +1951,35 @@ bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode) 
	switch (mode) {

	case ATH9K_PM_AWAKE:

		status = ath9k_hw_set_power_awake(ah, setChip);



		if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)

			REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);



		break;

	case ATH9K_PM_FULL_SLEEP:



		if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI) {

			if (ar9003_mci_state(ah, MCI_STATE_ENABLE, NULL) &&

				(mci->bt_state != MCI_BT_SLEEP) &&

				!mci->halted_bt_gpm) {

				ath_dbg(common, ATH_DBG_MCI, "MCI halt BT GPM"

						"(full_sleep)");

				ar9003_mci_send_coex_halt_bt_gpm(ah,

								 true, true);

			}



			mci->ready = false;

			REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);

		}



		ath9k_set_power_sleep(ah, setChip);

		ah->chip_fullsleep = true;

		break;

	case ATH9K_PM_NETWORK_SLEEP:



		if (ah->caps.hw_caps & ATH9K_HW_CAP_MCI)

			REG_WRITE(ah, AR_RTC_KEEP_AWAKE, 0x2);



		ath9k_set_power_network_sleep(ah, setChip);

		break;

	default:

drivers/net/wireless/ath/ath9k/reg.h

+2 −0
Original line number Diff line number Diff line
@@ -1279,6 +1279,8 @@ enum { 
#define AR_RTC_INTR_MASK \

	((AR_SREV_9100(ah)) ? (AR_RTC_BASE + 0x0058) : 0x7058)



#define AR_RTC_KEEP_AWAKE	0x7034



/* RTC_DERIVED_* - only for AR9100 */



#define AR_RTC_DERIVED_CLK \

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