From: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx>
Before firmware is ready, set GNT_BT to high to let bt transmit.
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>
---
.../realtek/rtlwifi/btcoexist/halbtc8821a2ant.c | 37 ++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
index 162d40ddf06d..9aa140a46d46 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c
@@ -3609,6 +3609,43 @@ void ex_btc8821a2ant_init_hwconfig(struct btc_coexist *btcoexist)
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x40, 0x20, 0x1);
}
+void ex_btc8821a2ant_pre_load_firmware(struct btc_coexist *btcoexist)
+{
+ struct btc_board_info *board_info = &btcoexist->board_info;
+ u8 u8tmp = 0x4; /* Set BIT2 by default since it's 2ant case */
+
+ /**
+ * S0 or S1 setting and Local register setting(By the setting fw can get
+ * ant number, S0/S1, ... info)
+ *
+ * Local setting bit define
+ * BIT0: "0" for no antenna inverse; "1" for antenna inverse
+ * BIT1: "0" for internal switch; "1" for external switch
+ * BIT2: "0" for one antenna; "1" for two antenna
+ * NOTE: here default all internal switch and 1-antenna ==> BIT1=0 and
+ * BIT2=0
+ */
+ if (btcoexist->chip_interface == BTC_INTF_USB) {
+ /* fixed at S0 for USB interface */
+ u8tmp |= 0x1; /* antenna inverse */
+ btcoexist->btc_write_local_reg_1byte(btcoexist, 0xfe08, u8tmp);
+ } else {
+ /* for PCIE and SDIO interface, we check efuse 0xc3[6] */
+ if (board_info->single_ant_path == 0) {
+ } else if (board_info->single_ant_path == 1) {
+ /* set to S0 */
+ u8tmp |= 0x1; /* antenna inverse */
+ }
+
+ if (btcoexist->chip_interface == BTC_INTF_PCI)
+ btcoexist->btc_write_local_reg_1byte(btcoexist, 0x384,
+ u8tmp);
+ else if (btcoexist->chip_interface == BTC_INTF_SDIO)
+ btcoexist->btc_write_local_reg_1byte(btcoexist, 0x60,
+ u8tmp);
+ }
+}
+
void ex_btc8821a2ant_init_coex_dm(struct btc_coexist *btcoexist)
{
struct rtl_priv *rtlpriv = btcoexist->adapter;
--
2.12.0
