From: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
send halt BT GPM if the chip is in network sleep and BT state
is awake
Cc: Wilson Tsao <wtsao@xxxxxxxxxxxxxxxx>
Cc: Senthil Balasubramanian <senthilb@xxxxxxxxxxxxxxxx>
Signed-off-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/hw.c | 24 ++++++++++++++++++++++++
drivers/net/wireless/ath/ath9k/reg.h | 2 ++
2 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 662ab7e..ba5734a 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -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:
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index ba3672f..6e2f188 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -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 \
--
1.7.0.4
--
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