diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c index 0f3d04529ff2..06f70944bdac 100644 --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c @@ -3700,6 +3700,44 @@ void ex_btc8723b2ant_power_on_setting(struct btc_coexist *btcoexist) } } +void ex_btc8723b2ant_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 this fw can get + * ant number, S0/S1, ... info) + * + * Local setting bit define + * BIT0: "0" : no antenna inverse; "1" : antenna inverse + * BIT1: "0" : internal switch; "1" : external switch + * BIT2: "0" : one antenna; "1" : two antennas + * + * 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_btc8723b2ant_init_coex_dm(struct btc_coexist *btcoexist) { struct rtl_priv *rtlpriv = btcoexist->adapter; |