summaryrefslogtreecommitdiffstats
path: root/drivers/net
diff options
context:
space:
mode:
authorSujith Manoharan <c_manoha@qualcomm.com>2012-09-16 08:06:56 +0530
committerJohn W. Linville <linville@tuxdriver.com>2012-09-24 14:59:11 -0400
commite09f2dc73c5c4927cbc55d9c29bef4209c2d866d (patch)
treed7c64285178dcf6710f925aed881c7276bf3c1ba /drivers/net
parent362cd03fd828af38327fb448416c07a7c7a8e3cb (diff)
ath9k: Add a module parameter to enable diversity
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/ath/ath.h1
-rw-r--r--drivers/net/wireless/ath/ath9k/antenna.c4
-rw-r--r--drivers/net/wireless/ath/ath9k/init.c12
3 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 6169fbd23ed..4521342c62c 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -159,6 +159,7 @@ struct ath_common {
bool btcoex_enabled;
bool disable_ani;
+ bool antenna_diversity;
};
struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c
index 8eb274f1686..664844c5d3d 100644
--- a/drivers/net/wireless/ath/ath9k/antenna.c
+++ b/drivers/net/wireless/ath/ath9k/antenna.c
@@ -776,6 +776,7 @@ div_comb_done:
void ath_ant_comb_update(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
struct ath_hw_antcomb_conf div_ant_conf;
u8 lna_conf;
@@ -790,4 +791,7 @@ void ath_ant_comb_update(struct ath_softc *sc)
div_ant_conf.alt_lna_conf = lna_conf;
ath9k_hw_antdiv_comb_conf_set(ah, &div_ant_conf);
+
+ if (common->antenna_diversity)
+ ath9k_hw_antctrl_shared_chain_lnadiv(ah, true);
}
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 70625522259..fad3ccd5cd9 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -46,6 +46,10 @@ static int ath9k_btcoex_enable;
module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
+static int ath9k_enable_diversity;
+module_param_named(enable_diversity, ath9k_enable_diversity, int, 0444);
+MODULE_PARM_DESC(enable_diversity, "Enable Antenna diversity for AR9565");
+
bool is_ath9k_unloaded;
/* We use the hw_value as an index into our private channel structure */
@@ -546,6 +550,14 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
common->debug_mask = ath9k_debug;
common->btcoex_enabled = ath9k_btcoex_enable == 1;
common->disable_ani = false;
+
+ /*
+ * Enable Antenna diversity only when BTCOEX is disabled
+ * and the user manually requests the feature.
+ */
+ if (!common->btcoex_enabled && ath9k_enable_diversity)
+ common->antenna_diversity = 1;
+
spin_lock_init(&common->cc_lock);
spin_lock_init(&sc->sc_serial_rw);