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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 <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Yan-Hsuan Chuang 2017-04-04 11:50:02 -05:00 committed by Kalle Valo
parent a0f430b3ea
commit 3b4fa04d8e
1 changed files with 9 additions and 4 deletions
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13
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
View File

@ -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"*/