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rtlwifi: btcoex: 23b 2ant: let bt transmit when hw initialisation done 

During hw initialisation, wifi may be ready after bt has already been
ready, which causes bt to act abnormally. To avoid this, set GNT_BT to
high during hw init.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Stable <stable@vger.kernel.org>
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 11:50:03 -05:00 committed by Kalle Valo
parent 3b4fa04d8e
commit bcd37f4a08
1 changed files with 31 additions and 14 deletions
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45
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
View File

@ -1083,12 +1083,7 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist,
use_ext_switch = true;
if (init_hwcfg) {
/* 0x4c[23] = 0, 0x4c[24] = 1 Antenna control by WL/BT */
u32tmp = btcoexist->btc_read_4byte(btcoexist, 0x4c);
u32tmp &= ~BIT23;
u32tmp |= BIT24;
btcoexist->btc_write_4byte(btcoexist, 0x4c, u32tmp);
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x39, 0x8, 0x1);
btcoexist->btc_write_1byte(btcoexist, 0x974, 0xff);
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x944, 0x3, 0x3);
btcoexist->btc_write_1byte(btcoexist, 0x930, 0x77);
@ -1103,6 +1098,12 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist,
btcoexist->btc_write_1byte(btcoexist, 0x765, 0x18);
}
btcoexist->btc_write_4byte(btcoexist, 0x948, 0x0);
/* WiFi TRx Mask off */
btcoexist->btc_set_rf_reg(btcoexist, BTC_RF_A,
0x1, 0xfffff, 0x0);
if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT) {
/* tell firmware "no antenna inverse" */
h2c_parameter[0] = 0;
@ -1125,17 +1126,23 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist,
h2c_parameter[0] = 0;
btcoexist->btc_fill_h2c(btcoexist, 0x6E, 1,
h2c_parameter);
btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
} else {
btcoexist->btc_write_1byte(btcoexist, 0x765, 0x0);
}
}
/* ext switch setting */
if (use_ext_switch) {
if (init_hwcfg) {
/* 0x4c[23] = 0, 0x4c[24] = 1 Ant controlled by WL/BT */
u32tmp = btcoexist->btc_read_4byte(btcoexist, 0x4c);
u32tmp &= ~BIT23;
u32tmp |= BIT24;
btcoexist->btc_write_4byte(btcoexist, 0x4c, u32tmp);
}
/* fixed internal switch S1->WiFi, S0->BT */
if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
else
btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
btcoexist->btc_write_4byte(btcoexist, 0x948, 0x0);
switch (antpos_type) {
case BTC_ANT_WIFI_AT_MAIN:
@ -1149,9 +1156,18 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist,
0x92c, 0x3, 0x2);
break;
}
} else { /* internal switch */
/* fixed ext switch */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x92c, 0x3, 0x1);
} else {
/* internal switch */
if (init_hwcfg) {
/* 0x4c[23] = 0, 0x4c[24] = 1 Ant controlled by WL/BT */
u32tmp = btcoexist->btc_read_4byte(btcoexist, 0x4c);
u32tmp |= BIT23;
u32tmp &= ~BIT24;
btcoexist->btc_write_4byte(btcoexist, 0x4c, u32tmp);
}
/* fixed ext switch, S1->Main, S0->Aux */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x64, 0x1, 0x0);
switch (antpos_type) {
case BTC_ANT_WIFI_AT_MAIN:
/* fixed internal switch S1->WiFi, S0->BT */
@ -1458,6 +1474,7 @@ static void btc8723b2ant_coex_alloff(struct btc_coexist *btcoexist)
static void btc8723b2ant_init_coex_dm(struct btc_coexist *btcoexist)
{
/* force to reset coex mechanism*/
btc8723b2ant_coex_table_with_type(btcoexist, NORMAL_EXEC, 0);
btc8723b2ant_power_save_state(btcoexist, BTC_PS_WIFI_NATIVE, 0x0, 0x0);
btc8723b2ant_ps_tdma(btcoexist, FORCE_EXEC, false, 1);