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ath9k: Reintroduce modparam to enable btcoex

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It is not ideal to enable btcoex based on subsys id as it is
not unique, they are so random. It is also a pain keeping
all of them in a table to enable btcoex for a particular
hw. Going back to the old idea.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2010-11-26 06:10:06 -08:00 committed by John W. Linville
parent f30221e4ec
commit 8f5dcb1cfb
3 changed files with 8 additions and 2 deletions
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2
drivers/net/wireless/ath/ath.h
View File

@ -168,6 +168,8 @@ struct ath_common {
struct ath_regulatory regulatory;
const struct ath_ops *ops;
const struct ath_bus_ops *bus_ops;
bool btcoex_enabled;
};
struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,

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

@ -1925,8 +1925,7 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
pCap->num_antcfg_2ghz =
ah->eep_ops->get_num_ant_config(ah, ATH9K_HAL_FREQ_BAND_2GHZ);
if (AR_SREV_9280_20_OR_LATER(ah) &&
ath9k_hw_btcoex_supported(ah)) {
if (AR_SREV_9280_20_OR_LATER(ah) && common->btcoex_enabled) {
btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;

5
drivers/net/wireless/ath/ath9k/init.c
View File

@ -38,6 +38,10 @@ int led_blink;
module_param_named(blink, led_blink, int, 0444);
MODULE_PARM_DESC(blink, "Enable LED blink on activity");
static int ath9k_btcoex_enable;
module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
/* We use the hw_value as an index into our private channel structure */
#define CHAN2G(_freq, _idx) { \
@ -543,6 +547,7 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid,
common->hw = sc->hw;
common->priv = sc;
common->debug_mask = ath9k_debug;
common->btcoex_enabled = ath9k_btcoex_enable == 1;
spin_lock_init(&common->cc_lock);
spin_lock_init(&sc->wiphy_lock);