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wifi: rtw89: coex: Add antenna setting function for RTL8922A
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Because there is new hardware structure and Wi-Fi 7 protocol,
the antenna settings need to concern more complex for Wi-Fi 7
using. The antenna setting included grant control signal, they
decide which MAC/Port or Bluetooth can do traffic.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240312013721.17452-3-pkshih@realtek.com
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Ching-Te Ku authored and Kalle Valo committed Mar 14, 2024
1 parent 4e430ca commit bd120fa
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Showing 3 changed files with 197 additions and 2 deletions.
193 changes: 191 additions & 2 deletions drivers/net/wireless/realtek/rtw89/coex.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -311,6 +311,7 @@ enum btc_ant_phase {
BTC_ANT_W25G,
BTC_ANT_FREERUN,
BTC_ANT_WRFK,
BTC_ANT_WRFK2,
BTC_ANT_BRFK,
BTC_ANT_MAX
};
Expand Down Expand Up @@ -615,6 +616,13 @@ enum btc_ctr_path {
BTC_CTRL_BY_WL
};

enum btc_wlact_state {
BTC_WLACT_HW = 0,
BTC_WLACT_SW_LO,
BTC_WLACT_SW_HI,
BTC_WLACT_MAX,
};

enum btc_wl_max_tx_time {
BTC_MAX_TX_TIME_L1 = 500,
BTC_MAX_TX_TIME_L2 = 1000,
Expand Down Expand Up @@ -2247,6 +2255,76 @@ static void _set_gnt(struct rtw89_dev *rtwdev, u8 phy_map, u8 wl_state, u8 bt_st
rtw89_chip_mac_cfg_gnt(rtwdev, &dm->gnt);
}

static void _set_gnt_v1(struct rtw89_dev *rtwdev, u8 phy_map,
u8 wl_state, u8 bt_state, u8 wlact_state)
{
struct rtw89_btc *btc = &rtwdev->btc;
struct rtw89_btc_dm *dm = &btc->dm;
struct rtw89_mac_ax_gnt *g = dm->gnt.band;
u8 i, bt_idx = dm->bt_select + 1;

if (phy_map > BTC_PHY_ALL)
return;

for (i = 0; i < RTW89_PHY_MAX; i++) {
if (!(phy_map & BIT(i)))
continue;

switch (wl_state) {
case BTC_GNT_HW:
g[i].gnt_wl_sw_en = 0;
g[i].gnt_wl = 0;
break;
case BTC_GNT_SW_LO:
g[i].gnt_wl_sw_en = 1;
g[i].gnt_wl = 0;
break;
case BTC_GNT_SW_HI:
g[i].gnt_wl_sw_en = 1;
g[i].gnt_wl = 1;
break;
}

switch (bt_state) {
case BTC_GNT_HW:
g[i].gnt_bt_sw_en = 0;
g[i].gnt_bt = 0;
break;
case BTC_GNT_SW_LO:
g[i].gnt_bt_sw_en = 1;
g[i].gnt_bt = 0;
break;
case BTC_GNT_SW_HI:
g[i].gnt_bt_sw_en = 1;
g[i].gnt_bt = 1;
break;
}
}

if (rtwdev->chip->para_ver & BTC_FEAT_WLAN_ACT_MUX) {
for (i = 0; i < 2; i++) {
if (!(bt_idx & BIT(i)))
continue;

switch (wlact_state) {
case BTC_WLACT_HW:
dm->gnt.bt[i].wlan_act_en = 0;
dm->gnt.bt[i].wlan_act = 0;
break;
case BTC_WLACT_SW_LO:
dm->gnt.bt[i].wlan_act_en = 1;
dm->gnt.bt[i].wlan_act = 0;
break;
case BTC_WLACT_SW_HI:
dm->gnt.bt[i].wlan_act_en = 1;
dm->gnt.bt[i].wlan_act = 1;
break;
}
}
}
rtw89_mac_cfg_gnt_v2(rtwdev, &dm->gnt);
}

#define BTC_TDMA_WLROLE_MAX 2

static void _set_bt_ignore_wlan_act(struct rtw89_dev *rtwdev, u8 enable)
Expand Down Expand Up @@ -3512,8 +3590,8 @@ static void _set_bt_plut(struct rtw89_dev *rtwdev, u8 phy_map,
rtw89_mac_cfg_plt(rtwdev, &plt);
}

static void _set_ant(struct rtw89_dev *rtwdev, bool force_exec,
u8 phy_map, u8 type)
static void _set_ant_v0(struct rtw89_dev *rtwdev, bool force_exec,
u8 phy_map, u8 type)
{
struct rtw89_btc *btc = &rtwdev->btc;
struct rtw89_btc_dm *dm = &btc->dm;
Expand Down Expand Up @@ -3639,6 +3717,117 @@ static void _set_ant(struct rtw89_dev *rtwdev, bool force_exec,
}
}

static void _set_ant_v1(struct rtw89_dev *rtwdev, bool force_exec,
u8 phy_map, u8 type)
{
struct rtw89_btc *btc = &rtwdev->btc;
struct rtw89_btc_wl_info *wl = &btc->cx.wl;
struct rtw89_btc_bt_info *bt = &btc->cx.bt;
struct rtw89_btc_wl_role_info_v8 *wl_rinfo = &wl->role_info_v8;
u32 ant_path_type = rtw89_get_antpath_type(phy_map, type);
struct rtw89_btc_wl_dbcc_info *wl_dinfo = &wl->dbcc_info;
struct rtw89_btc_dm *dm = &btc->dm;
u8 gwl = BTC_GNT_HW;

if (btc->dm.run_reason == BTC_RSN_NTFY_POWEROFF ||
btc->dm.run_reason == BTC_RSN_NTFY_RADIO_STATE ||
btc->dm.run_reason == BTC_RSN_CMD_SET_COEX || wl_rinfo->dbcc_chg)
force_exec = FC_EXEC;

if (wl_rinfo->link_mode != BTC_WLINK_25G_MCC &&
btc->dm.wl_btg_rx == 2)
force_exec = FC_EXEC;

if (!force_exec && ant_path_type == dm->set_ant_path) {
rtw89_debug(rtwdev, RTW89_DBG_BTC,
"[BTC], %s(): return by no change!!\n",
__func__);
return;
} else if (bt->rfk_info.map.run) {
rtw89_debug(rtwdev, RTW89_DBG_BTC,
"[BTC], %s(): return by bt rfk!!\n", __func__);
return;
} else if (btc->dm.run_reason != BTC_RSN_NTFY_WL_RFK &&
wl->rfk_info.state != BTC_WRFK_STOP) {
rtw89_debug(rtwdev, RTW89_DBG_BTC,
"[BTC], %s(): return by wl rfk!!\n", __func__);
return;
}

dm->set_ant_path = ant_path_type;

rtw89_debug(rtwdev, RTW89_DBG_BTC,
"[BTC], %s(): path=0x%x, set_type=0x%x\n",
__func__, phy_map, dm->set_ant_path & 0xff);

switch (type) {
case BTC_ANT_WINIT:
/* To avoid BT MP driver case (bt_enable but no mailbox) */
if (bt->enable.now && bt->run_patch_code)
_set_gnt_v1(rtwdev, phy_map, BTC_GNT_SW_LO, BTC_GNT_SW_HI,
BTC_WLACT_SW_LO);
else
_set_gnt_v1(rtwdev, phy_map, BTC_GNT_SW_HI, BTC_GNT_SW_LO,
BTC_WLACT_SW_HI);
break;
case BTC_ANT_WONLY:
_set_gnt_v1(rtwdev, phy_map, BTC_GNT_SW_HI, BTC_GNT_SW_LO,
BTC_WLACT_SW_HI);
break;
case BTC_ANT_WOFF:
_set_gnt_v1(rtwdev, phy_map, BTC_GNT_SW_LO, BTC_GNT_SW_HI,
BTC_WLACT_SW_LO);
break;
case BTC_ANT_W2G:
case BTC_ANT_W25G:
if (wl_rinfo->dbcc_en) {
if (wl_dinfo->real_band[RTW89_PHY_0] == RTW89_BAND_2G)
gwl = BTC_GNT_HW;
else
gwl = BTC_GNT_SW_HI;
_set_gnt_v1(rtwdev, BTC_PHY_0, gwl, BTC_GNT_HW, BTC_WLACT_HW);

if (wl_dinfo->real_band[RTW89_PHY_1] == RTW89_BAND_2G)
gwl = BTC_GNT_HW;
else
gwl = BTC_GNT_SW_HI;
_set_gnt_v1(rtwdev, BTC_PHY_1, gwl, BTC_GNT_HW, BTC_WLACT_HW);
} else {
gwl = BTC_GNT_HW;
_set_gnt_v1(rtwdev, phy_map, gwl, BTC_GNT_HW, BTC_WLACT_HW);
}
break;
case BTC_ANT_W5G:
_set_gnt_v1(rtwdev, phy_map, BTC_GNT_SW_HI, BTC_GNT_HW, BTC_WLACT_HW);
break;
case BTC_ANT_FREERUN:
_set_gnt_v1(rtwdev, phy_map, BTC_GNT_SW_HI, BTC_GNT_SW_HI,
BTC_WLACT_SW_LO);
break;
case BTC_ANT_WRFK:
_set_gnt_v1(rtwdev, phy_map, BTC_GNT_SW_HI, BTC_GNT_SW_LO,
BTC_WLACT_HW);
break;
case BTC_ANT_WRFK2:
_set_gnt_v1(rtwdev, phy_map, BTC_GNT_SW_HI, BTC_GNT_SW_LO,
BTC_WLACT_SW_HI); /* no BT-Tx */
break;
default:
return;
}

_set_bt_plut(rtwdev, phy_map, BTC_PLT_GNT_WL, BTC_PLT_GNT_WL);
}

static void _set_ant(struct rtw89_dev *rtwdev, bool force_exec,
u8 phy_map, u8 type)
{
if (rtwdev->chip->chip_id == RTL8922A)
_set_ant_v1(rtwdev, force_exec, phy_map, type);
else
_set_ant_v0(rtwdev, force_exec, phy_map, type);
}

static void _action_wl_only(struct rtw89_dev *rtwdev)
{
_set_ant(rtwdev, FC_EXEC, BTC_PHY_ALL, BTC_ANT_WONLY);
Expand Down
5 changes: 5 additions & 0 deletions drivers/net/wireless/realtek/rtw89/coex.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -280,4 +280,9 @@ static inline u16 rtw89_coex_query_bt_req_len(struct rtw89_dev *rtwdev,
return btc->bt_req_len;
}

static inline u32 rtw89_get_antpath_type(u8 phy_map, u8 type)
{
return ((phy_map << 8) + type);
}

#endif
1 change: 1 addition & 0 deletions drivers/net/wireless/realtek/rtw89/core.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2658,6 +2658,7 @@ struct rtw89_btc_dm {
u8 wl_pre_agc: 2;
u8 wl_lna2: 1;
u8 wl_pre_agc_rb: 2;
u8 bt_select: 2; /* 0:s0, 1:s1, 2:s0 & s1, refer to enum btc_bt_index */
};

struct rtw89_btc_ctrl {
Expand Down

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