diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2011-12-17 19:47:56 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-12-19 23:46:55 +0400 |
| commit | 8a30930563521c9dba73c93b5631be1d0993f78f (patch) | |
| tree | 859d5bd92689fc934aa6c7eea98f1d37891fb293 /drivers/net/wireless/ath/ath9k/gpio.c | |
| parent | 104cfa881006c18af9b118e1631dcf1f8378994a (diff) | |
| download | linux-8a30930563521c9dba73c93b5631be1d0993f78f.tar.xz | |
ath9k_hw: make bluetooth coexistence support optional at compile time
Many systems (e.g. embedded systems) do not have wifi modules connected to
bluetooth modules, so bluetooth coexistence is irrelevant there. With the
addition of MCI support, ath9k picked up quite a bit of extra code that
can be compiled out this way.
This patch redefines ATH9K_HW_CAP_MCI and adds an inline wrapper for
querying the bluetooth coexistence scheme, allowing the compiler to
eliminate code that uses it, with only very little use of #ifdef.
On MIPS this reduces the total size for the modules by about 20k.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/gpio.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/gpio.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c index 7834d70a190d..597c84e31adb 100644 --- a/drivers/net/wireless/ath/ath9k/gpio.c +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -249,6 +249,9 @@ int ath_init_btcoex_timer(struct ath_softc *sc) { struct ath_btcoex *btcoex = &sc->btcoex; + if (ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_NONE) + return 0; + btcoex->btcoex_period = ATH_BTCOEX_DEF_BT_PERIOD * 1000; btcoex->btcoex_no_stomp = (100 - ATH_BTCOEX_DEF_DUTY_CYCLE) * btcoex->btcoex_period / 100; @@ -281,6 +284,9 @@ void ath9k_btcoex_timer_resume(struct ath_softc *sc) ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex timers\n"); + if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE) + return; + /* make sure duty cycle timer is also stopped when resuming */ if (btcoex->hw_timer_enabled) ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer); @@ -301,6 +307,9 @@ void ath9k_btcoex_timer_pause(struct ath_softc *sc) struct ath_btcoex *btcoex = &sc->btcoex; struct ath_hw *ah = sc->sc_ah; + if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_NONE) + return; + del_timer_sync(&btcoex->period_timer); if (btcoex->hw_timer_enabled) |