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authorLarry Finger <Larry.Finger@lwfinger.net>2017-09-04 20:51:34 +0300
committerKalle Valo <kvalo@codeaurora.org>2017-09-07 15:55:56 +0300
commit6d622692836950b3c943776f84c4557ff6c02f3b (patch)
tree4d85aaa2a7622346039a4b26f5c353b6a09784f5 /drivers/net/wireless/realtek/rtlwifi/btcoexist
parenta33fcba6ec01efcca33b1afad91057020f247f15 (diff)
downloadlinux-6d622692836950b3c943776f84c4557ff6c02f3b.tar.xz
rtlwifi: btcoexist: Fix antenna selection code
In commit 87d8a9f35202 ("rtlwifi: btcoex: call bind to setup btcoex"), the code turns on a call to exhalbtc_bind_bt_coex_withadapter(). This routine contains a bug that causes incorrect antenna selection for those HP laptops with only one antenna and an incorrectly programmed EFUSE. These boxes are the ones that need the ant_sel module parameter. Fixes: 87d8a9f35202 ("rtlwifi: btcoex: call bind to setup btcoex") Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Ping-Ke Shih <pkshih@realtek.com> Cc: Yan-Hsuan Chuang <yhchuang@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Cc: Stable <stable@vger.kernel.org> # 4.13+ Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/btcoexist')
-rw-r--r--drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
index c1eacd8352a2..b5e9877d935c 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
@@ -173,6 +173,16 @@ static u8 halbtc_get_wifi_central_chnl(struct btc_coexist *btcoexist)
u8 rtl_get_hwpg_single_ant_path(struct rtl_priv *rtlpriv)
{
+ struct rtl_mod_params *mod_params = rtlpriv->cfg->mod_params;
+
+ /* override ant_num / ant_path */
+ if (mod_params->ant_sel) {
+ rtlpriv->btcoexist.btc_info.ant_num =
+ (mod_params->ant_sel == 1 ? ANT_X2 : ANT_X1);
+
+ rtlpriv->btcoexist.btc_info.single_ant_path =
+ (mod_params->ant_sel == 1 ? 0 : 1);
+ }
return rtlpriv->btcoexist.btc_info.single_ant_path;
}
@@ -183,6 +193,7 @@ u8 rtl_get_hwpg_bt_type(struct rtl_priv *rtlpriv)
u8 rtl_get_hwpg_ant_num(struct rtl_priv *rtlpriv)
{
+ struct rtl_mod_params *mod_params = rtlpriv->cfg->mod_params;
u8 num;
if (rtlpriv->btcoexist.btc_info.ant_num == ANT_X2)
@@ -190,6 +201,10 @@ u8 rtl_get_hwpg_ant_num(struct rtl_priv *rtlpriv)
else
num = 1;
+ /* override ant_num / ant_path */
+ if (mod_params->ant_sel)
+ num = (mod_params->ant_sel == 1 ? ANT_X2 : ANT_X1) + 1;
+
return num;
}
@@ -876,7 +891,7 @@ bool exhalbtc_bind_bt_coex_withadapter(void *adapter)
{
struct btc_coexist *btcoexist = &gl_bt_coexist;
struct rtl_priv *rtlpriv = adapter;
- u8 ant_num = 2, chip_type, single_ant_path = 0;
+ u8 ant_num = 2, chip_type;
if (btcoexist->binded)
return false;
@@ -911,12 +926,6 @@ bool exhalbtc_bind_bt_coex_withadapter(void *adapter)
ant_num = rtl_get_hwpg_ant_num(rtlpriv);
exhalbtc_set_ant_num(rtlpriv, BT_COEX_ANT_TYPE_PG, ant_num);
- /* set default antenna position to main port */
- btcoexist->board_info.btdm_ant_pos = BTC_ANTENNA_AT_MAIN_PORT;
-
- single_ant_path = rtl_get_hwpg_single_ant_path(rtlpriv);
- exhalbtc_set_single_ant_path(single_ant_path);
-
if (rtl_get_hwpg_package_type(rtlpriv) == 0)
btcoexist->board_info.tfbga_package = false;
else if (rtl_get_hwpg_package_type(rtlpriv) == 1)