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| author | Yan-Hsuan Chuang <yhchuang@realtek.com> | 2017-05-11 14:01:13 -0500 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-05-18 17:07:29 +0300 |
| commit | 4a279c2b73fd1575f519b981bc8d5b9fe1392866 (patch) | |
| tree | 020b8f73ae1007031e27bdc6feecb5271e7913f1 /drivers/net/wireless/realtek | |
| parent | be04040108ae0520f21342e438b62c9d5bff859b (diff) | |
| download | linux-stable-4a279c2b73fd1575f519b981bc8d5b9fe1392866.tar.gz linux-stable-4a279c2b73fd1575f519b981bc8d5b9fe1392866.tar.bz2 linux-stable-4a279c2b73fd1575f519b981bc8d5b9fe1392866.zip | |
rtlwifi: btcoex: 21a 2ant: settings before wifi firmware is ready
Before firmware is ready, set GNT_BT to high to let bt transmit.
Routine ex_btc8821a2ant_pre_load_firmware() restored.
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>
Diffstat (limited to 'drivers/net/wireless/realtek')
| -rw-r--r-- | drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c | 37 |
1 files changed, 37 insertions, 0 deletions
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; |