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rtlwifi: btcoex: 23b 1ant: Switch antenna to wifi or BT. 

Since wifi and BT share the same physical antenna, we should switch antenna
to fit every situation.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@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:
Ping-Ke Shih 2017-05-19 10:59:28 -05:00 committed by Kalle Valo
parent 1a79ddaa90
commit 96e3baadd0
2 changed files with 198 additions and 131 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

326
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.c
View File

@ -751,14 +751,18 @@ static void halbtc8723b1ant_sw_mechanism(struct btc_coexist *btcoexist,
}
static void halbtc8723b1ant_set_ant_path(struct btc_coexist *btcoexist,
u8 ant_pos_type, bool init_hw_cfg,
bool wifi_off)
u8 ant_pos_type, bool force_exec,
bool init_hw_cfg, bool wifi_off)
{
struct rtl_priv *rtlpriv = btcoexist->adapter;
struct btc_board_info *board_info = &btcoexist->board_info;
u32 fw_ver = 0, u32tmp = 0;
u32 fw_ver = 0, u32tmp = 0, cnt_bt_cal_chk = 0;
bool pg_ext_switch = false;
bool use_ext_switch = false;
u8 h2c_parameter[2] = {0};
bool is_in_mp_mode = false;
u8 h2c_parameter[2] = {0}, u8tmp = 0;
coex_dm->cur_ant_pos_type = ant_pos_type;
btcoexist->btc_get(btcoexist, BTC_GET_BL_EXT_SWITCH, &pg_ext_switch);
/* [31:16] = fw ver, [15:0] = fw sub ver */
@ -768,24 +772,103 @@ static void halbtc8723b1ant_set_ant_path(struct btc_coexist *btcoexist,
use_ext_switch = true;
if (init_hw_cfg) {
/*BT select s0/s1 is controlled by WiFi */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x67, 0x20, 0x1);
/* WiFi TRx Mask on */
btcoexist->btc_set_rf_reg(btcoexist, BTC_RF_A, 0x1, 0xfffff,
0x780);
/* remove due to interrupt is disabled that polling c2h will
* fail and delay 100ms.
*/
/*Force GNT_BT to Normal */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x765, 0x18, 0x0);
} else if (wifi_off) {
/*Force GNT_BT to High */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x765, 0x18, 0x3);
/*BT select s0/s1 is controlled by BT */
if (fw_ver >= 0x180000) {
/* Use H2C to set GNT_BT to HIGH */
h2c_parameter[0] = 1;
btcoexist->btc_fill_h2c(btcoexist, 0x6E, 1,
h2c_parameter);
} else {
/* set grant_bt to high */
btcoexist->btc_write_1byte(btcoexist, 0x765, 0x18);
}
/* set wlan_act control by PTA */
btcoexist->btc_write_1byte(btcoexist, 0x76e, 0x4);
/* BT select s0/s1 is controlled by BT */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x67, 0x20, 0x0);
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);
} else if (wifi_off) {
if (fw_ver >= 0x180000) {
/* Use H2C to set GNT_BT to HIGH */
h2c_parameter[0] = 1;
btcoexist->btc_fill_h2c(btcoexist, 0x6E, 1,
h2c_parameter);
} else {
/* set grant_bt to high */
btcoexist->btc_write_1byte(btcoexist, 0x765, 0x18);
}
/* set wlan_act to always low */
btcoexist->btc_write_1byte(btcoexist, 0x76e, 0x4);
/* 0x4c[24:23] = 00, Set Antenna control by BT_RFE_CTRL
* BT Vendor 0xac = 0xf002
btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_IS_IN_MP_MODE,
&is_in_mp_mode);
if (!is_in_mp_mode)
/* BT select s0/s1 is controlled by BT */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x67,
0x20, 0x0);
else
/* BT select s0/s1 is controlled by WiFi */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x67,
0x20, 0x1);
/* 0x4c[24:23]=00, Set Antenna control by BT_RFE_CTRL
* BT Vendor 0xac=0xf002
*/
u32tmp = btcoexist->btc_read_4byte(btcoexist, 0x4c);
u32tmp &= ~BIT23;
u32tmp &= ~BIT24;
btcoexist->btc_write_4byte(btcoexist, 0x4c, u32tmp);
} else {
/* Use H2C to set GNT_BT to LOW */
if (fw_ver >= 0x180000) {
if (btcoexist->btc_read_1byte(btcoexist, 0x765) != 0) {
h2c_parameter[0] = 0;
btcoexist->btc_fill_h2c(btcoexist, 0x6E, 1,
h2c_parameter);
}
} else {
/* BT calibration check */
while (cnt_bt_cal_chk <= 20) {
u8tmp = btcoexist->btc_read_1byte(btcoexist,
0x49d);
cnt_bt_cal_chk++;
if (u8tmp & BIT(0)) {
RT_TRACE(rtlpriv, COMP_BT_COEXIST,
DBG_LOUD,
"[BTCoex], ########### BT is calibrating (wait cnt=%d) ###########\n",
cnt_bt_cal_chk);
mdelay(50);
} else {
RT_TRACE(rtlpriv, COMP_BT_COEXIST,
DBG_LOUD,
"[BTCoex], ********** BT is NOT calibrating (wait cnt=%d)**********\n",
cnt_bt_cal_chk);
break;
}
}
/* set grant_bt to PTA */
btcoexist->btc_write_1byte(btcoexist, 0x765, 0x0);
}
if (btcoexist->btc_read_1byte(btcoexist, 0x76e) != 0xc) {
/* set wlan_act control by PTA */
btcoexist->btc_write_1byte(btcoexist, 0x76e, 0xc);
}
btcoexist->btc_write_1byte_bitmask(
btcoexist, 0x67, 0x20,
0x1); /* BT select s0/s1 is controlled by WiFi */
}
if (use_ext_switch) {
@ -798,155 +881,130 @@ static void halbtc8723b1ant_set_ant_path(struct btc_coexist *btcoexist,
u32tmp |= BIT24;
btcoexist->btc_write_4byte(btcoexist, 0x4c, u32tmp);
/* fixed internal switch S1->WiFi, S0->BT */
btcoexist->btc_write_4byte(btcoexist, 0x948, 0x0);
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT) {
/* Main Ant to BT for IPS case 0x4c[23] = 1 */
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x64, 0x1,
0x1);
/* tell firmware "no antenna inverse" */
h2c_parameter[0] = 0;
h2c_parameter[1] = 1; /*ext switch type*/
/* ext switch type */
h2c_parameter[1] = 1;
btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
h2c_parameter);
} else {
/* Aux Ant to BT for IPS case 0x4c[23] = 1 */
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x64, 0x1,
0x0);
/* tell firmware "antenna inverse" */
h2c_parameter[0] = 1;
h2c_parameter[1] = 1; /* ext switch type */
/* ext switch type */
h2c_parameter[1] = 1;
btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
h2c_parameter);
}
}
/* fixed internal switch first
* 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 /* fixed internal switch S0->WiFi, S1->BT */
btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
/* ext switch setting */
switch (ant_pos_type) {
case BTC_ANT_PATH_WIFI:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x92c, 0x3,
0x1);
else
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x92c, 0x3,
0x2);
break;
case BTC_ANT_PATH_BT:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x92c, 0x3,
0x2);
else
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x92c, 0x3,
0x1);
break;
default:
case BTC_ANT_PATH_PTA:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x92c, 0x3,
0x1);
else
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x92c, 0x3,
0x2);
break;
if (force_exec ||
(coex_dm->cur_ant_pos_type != coex_dm->pre_ant_pos_type)) {
/* ext switch setting */
switch (ant_pos_type) {
case BTC_ANT_PATH_WIFI:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_1byte_bitmask(
btcoexist, 0x92c, 0x3, 0x1);
else
btcoexist->btc_write_1byte_bitmask(
btcoexist, 0x92c, 0x3, 0x2);
break;
case BTC_ANT_PATH_BT:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_1byte_bitmask(
btcoexist, 0x92c, 0x3, 0x2);
else
btcoexist->btc_write_1byte_bitmask(
btcoexist, 0x92c, 0x3, 0x1);
break;
default:
case BTC_ANT_PATH_PTA:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_1byte_bitmask(
btcoexist, 0x92c, 0x3, 0x1);
else
btcoexist->btc_write_1byte_bitmask(
btcoexist, 0x92c, 0x3, 0x2);
break;
}
}
} else {
if (init_hw_cfg) {
/* 0x4c[23] = 1, 0x4c[24] = 0 Antenna control by 0x64 */
/* 0x4c[23] = 1, 0x4c[24] = 0,
* Antenna control by 0x64
*/
u32tmp = btcoexist->btc_read_4byte(btcoexist, 0x4c);
u32tmp |= BIT23;
u32tmp &= ~BIT24;
btcoexist->btc_write_4byte(btcoexist, 0x4c, u32tmp);
/* Fix Ext switch Main->S1, Aux->S0 */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x64, 0x1,
0x0);
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT) {
/* Main Ant to WiFi for IPS case 0x4c[23] = 1 */
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x64, 0x1,
0x0);
/* tell firmware "no antenna inverse" */
h2c_parameter[0] = 0;
h2c_parameter[1] = 0; /* internal switch type */
/* internal switch type */
h2c_parameter[1] = 0;
btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
h2c_parameter);
} else {
/* Aux Ant to BT for IPS case 0x4c[23] = 1 */
btcoexist->btc_write_1byte_bitmask(btcoexist,
0x64, 0x1,
0x1);
/* tell firmware "antenna inverse" */
h2c_parameter[0] = 1;
h2c_parameter[1] = 0; /* internal switch type */
/* internal switch type */
h2c_parameter[1] = 0;
btcoexist->btc_fill_h2c(btcoexist, 0x65, 2,
h2c_parameter);
}
}
/* fixed external switch first
* Main->WiFi, Aux->BT
*/
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x92c,
0x3, 0x1);
else /* Main->BT, Aux->WiFi */
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x92c,
0x3, 0x2);
/* internal switch setting */
switch (ant_pos_type) {
case BTC_ANT_PATH_WIFI:
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);
break;
case BTC_ANT_PATH_BT:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_2byte(btcoexist, 0x948,
0x280);
else
btcoexist->btc_write_2byte(btcoexist, 0x948,
0x0);
break;
default:
case BTC_ANT_PATH_PTA:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_2byte(btcoexist, 0x948,
0x200);
else
btcoexist->btc_write_2byte(btcoexist, 0x948,
0x80);
break;
if (force_exec ||
(coex_dm->cur_ant_pos_type != coex_dm->pre_ant_pos_type)) {
/* internal switch setting */
switch (ant_pos_type) {
case BTC_ANT_PATH_WIFI:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_4byte(btcoexist,
0x948, 0x0);
else
btcoexist->btc_write_4byte(btcoexist,
0x948, 0x280);
break;
case BTC_ANT_PATH_BT:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_4byte(btcoexist,
0x948, 0x280);
else
btcoexist->btc_write_4byte(btcoexist,
0x948, 0x0);
break;
default:
case BTC_ANT_PATH_PTA:
if (board_info->btdm_ant_pos ==
BTC_ANTENNA_AT_MAIN_PORT)
btcoexist->btc_write_4byte(btcoexist,
0x948, 0x200);
else
btcoexist->btc_write_4byte(btcoexist,
0x948, 0x80);
break;
}
}
}
coex_dm->pre_ant_pos_type = coex_dm->cur_ant_pos_type;
}
static void halbtc8723b1ant_ps_tdma(struct btc_coexist *btcoexist,
@ -1146,6 +1204,7 @@ static void halbtc8723b1ant_ps_tdma(struct btc_coexist *btcoexist,
0x0, 0x0, 0x0);
halbtc8723b1ant_set_ant_path(btcoexist,
BTC_ANT_PATH_PTA,
FORCE_EXEC,
false, false);
break;
case 0:
@ -1155,6 +1214,7 @@ static void halbtc8723b1ant_ps_tdma(struct btc_coexist *btcoexist,
0x0, 0x0, 0x0);
halbtc8723b1ant_set_ant_path(btcoexist,
BTC_ANT_PATH_BT,
FORCE_EXEC,
false, false);
break;
case 9:
@ -1163,6 +1223,7 @@ static void halbtc8723b1ant_ps_tdma(struct btc_coexist *btcoexist,
0x0, 0x0, 0x0);
halbtc8723b1ant_set_ant_path(btcoexist,
BTC_ANT_PATH_WIFI,
FORCE_EXEC,
false, false);
break;
}
@ -1429,7 +1490,8 @@ static void halbtc8723b1ant_action_wifi_only(struct btc_coexist *btcoexist)
{
halbtc8723b1ant_coex_table_with_type(btcoexist, FORCE_EXEC, 0);
halbtc8723b1ant_ps_tdma(btcoexist, FORCE_EXEC, false, 8);
halbtc8723b1ant_set_ant_path(btcoexist, false, false, BTC_ANT_PATH_PTA);
halbtc8723b1ant_set_ant_path(btcoexist, BTC_ANT_PATH_PTA,
FORCE_EXEC, false, false);
}
/* check if BT is disabled */
@ -2004,7 +2066,8 @@ static void halbtc8723b1ant_init_hw_config(struct btc_coexist *btcoexist,
btcoexist->btc_write_1byte_bitmask(btcoexist, 0x40, 0x20, 0x1);
/* Antenna config */
halbtc8723b1ant_set_ant_path(btcoexist, BTC_ANT_PATH_PTA, true, false);
halbtc8723b1ant_set_ant_path(btcoexist, BTC_ANT_PATH_PTA, FORCE_EXEC,
true, false);
/* PTA parameter */
halbtc8723b1ant_coex_table_with_type(btcoexist, FORCE_EXEC, 0);
}
@ -2323,7 +2386,7 @@ void ex_halbtc8723b1ant_ips_notify(struct btc_coexist *btcoexist, u8 type)
coex_sta->under_ips = true;
halbtc8723b1ant_set_ant_path(btcoexist, BTC_ANT_PATH_BT,
false, true);
FORCE_EXEC, false, true);
/* set PTA control */
halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC, false, 0);
halbtc8723b1ant_coex_table_with_type(btcoexist,
@ -2728,7 +2791,8 @@ void ex_halbtc8723b1ant_halt_notify(struct btc_coexist *btcoexist)
btcoexist->stop_coex_dm = true;
halbtc8723b1ant_set_ant_path(btcoexist, BTC_ANT_PATH_BT, false, true);
halbtc8723b1ant_set_ant_path(btcoexist, BTC_ANT_PATH_BT, FORCE_EXEC,
false, true);
halbtc8723b1ant_ignore_wlan_act(btcoexist, FORCE_EXEC, true);
@ -2749,8 +2813,8 @@ void ex_halbtc8723b1ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnp_state)
RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,
"[BTCoex], Pnp notify to SLEEP\n");
btcoexist->stop_coex_dm = true;
halbtc8723b1ant_set_ant_path(btcoexist, BTC_ANT_PATH_BT, false,
true);
halbtc8723b1ant_set_ant_path(btcoexist, BTC_ANT_PATH_BT,
FORCE_EXEC, false, true);
halbtc8723b1ant_power_save_state(btcoexist, BTC_PS_WIFI_NATIVE,
0x0, 0x0);
halbtc8723b1ant_ps_tdma(btcoexist, NORMAL_EXEC, false, 0);

3
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b1ant.h
View File

@ -82,6 +82,9 @@ enum _BT_8723B_1ANT_COEX_ALGO {
};
struct coex_dm_8723b_1ant {
/* hw setting */
u8 pre_ant_pos_type;
u8 cur_ant_pos_type;
/* fw mechanism */
bool cur_ignore_wlan_act;
bool pre_ignore_wlan_act;