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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: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Mohammed Shafi Shajakhan 2011-11-30 10:41:24 +05:30 committed by John W. Linville
parent 9e25365ffa
commit 1010911ec3
2 changed files with 26 additions and 0 deletions
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24
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -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:

2
drivers/net/wireless/ath/ath9k/reg.h
View File

@ -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 \