From: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx>
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 <yhchuang@xxxxxxxxxxx>
Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Cc: Pkshih <pkshih@xxxxxxxxxxx>
Cc: Birming Chiu <birming@xxxxxxxxxxx>
Cc: Shaofu <shaofu@xxxxxxxxxxx>
Cc: Steven Ting <steventing@xxxxxxxxxxx>
---
.../wireless/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 8098676..2cdcf82 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"*/
--
2.10.2
