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ath9k_hw: fix BT RF performance 

When software rfkill is triggered, before put the chip in reset
state, give LNA and SPDT control to BT to make sure BT can have
good RF performance.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2012-06-04 16:28:31 +05:30 committed by John W. Linville
parent c8b6fbe1f1
commit 99922a45e9
3 changed files with 20 additions and 0 deletions
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16
drivers/net/wireless/ath/ath9k/ar9003_mci.c
View File

@ -1391,3 +1391,19 @@ u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type, u32 *p_data)
return value;
}
EXPORT_SYMBOL(ar9003_mci_state);
void ar9003_mci_bt_gain_ctrl(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
ath_dbg(common, MCI, "Give LNA and SPDT control to BT\n");
REG_SET_BIT(ah, AR_PHY_GLB_CONTROL, AR_BTCOEX_CTRL_BT_OWN_SPDT_CTRL);
mci->is_2g = false;
mci->update_2g5g = true;
ar9003_mci_send_2g5g_status(ah, true);
/* Force another 2g5g update at next scanning */
mci->update_2g5g = true;
}

1
drivers/net/wireless/ath/ath9k/ar9003_mci.h
View File

@ -266,6 +266,7 @@ void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf,
void ar9003_mci_cleanup(struct ath_hw *ah);
void ar9003_mci_get_interrupt(struct ath_hw *ah, u32 *raw_intr,
u32 *rx_msg_intr);
void ar9003_mci_bt_gain_ctrl(struct ath_hw *ah);
/*
* These functions are used by ath9k_hw.

3
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -2737,6 +2737,9 @@ EXPORT_SYMBOL(ath9k_hw_setrxfilter);
bool ath9k_hw_phy_disable(struct ath_hw *ah)
{
if (ath9k_hw_mci_is_enabled(ah))
ar9003_mci_bt_gain_ctrl(ah);
if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
return false;