From 3b4fa04d8efdf24f331e1d590090b8cfe9007182 Mon Sep 17 00:00:00 2001 From: Yan-Hsuan Chuang Date: Tue, 4 Apr 2017 11:50:02 -0500 Subject: [PATCH] rtlwifi: btcoex: 23b 2ant: tell fw if external or internal switch is used Some chips use an external antenna switch, but fw may not realize it. Here we tell fw exactly that which type of switch we are using. Signed-off-by: Yan-Hsuan Chuang Signed-off-by: Larry Finger Cc: Pkshih Cc: Birming Chiu Cc: Shaofu Cc: Steven Ting Signed-off-by: Kalle Valo --- .../realtek/rtlwifi/btcoexist/halbtc8723b2ant.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c index 55dabe050f87..ec95f0097dfc 100644 --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c @@ -1106,14 +1106,19 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist, if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT) { /* tell firmware "no antenna inverse" */ h2c_parameter[0] = 0; - h2c_parameter[1] = 1; /* ext switch type */ - btcoexist->btc_fill_h2c(btcoexist, 0x65, 2, - h2c_parameter); - btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0); } else { /* tell firmware "antenna inverse" */ h2c_parameter[0] = 1; } + + if (use_ext_switch) { + /* ext switch type */ + h2c_parameter[1] = 1; + } else { + /* int switch type */ + h2c_parameter[1] = 0; + } + btcoexist->btc_fill_h2c(btcoexist, 0x65, 2, h2c_parameter); } else { if (fw_ver >= 0x180000) { /* Use H2C to set GNT_BT to "Control by PTA"*/ -- 2.30.2