[RFC 12/18] ath9k_hw: MCI related changes in chip management
From: Mohammed Shafi Shajakhan <hidden>
Date: 2011-11-15 06:04:39
Subsystem:
atheros ath generic utilities, qualcomm atheros ath9k wireless driver, the rest · Maintainers:
Jeff Johnson, Toke Høiland-Jørgensen, Linus Torvalds
From: Mohammed Shafi Shajakhan <redacted> send halt BT GPM if the chip is in network sleep and BT state is awake Signed-off-by: Mohammed Shafi Shajakhan <redacted> --- 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 \
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1.7.0.4