leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

rtlwifi: btcoexist: Fix antenna selection code

Browse Source 
In commit 87d8a9f352 ("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: 87d8a9f352 ("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>
This commit is contained in:
Larry Finger 2017-09-04 12:51:34 -05:00 committed by Kalle Valo
parent a33fcba6ec
commit 6d62269283
1 changed files with 16 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
View File

@ -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)