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ath9k_hw: fix BT RF performance

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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;