Commit 70a13e5f authored by Ching-Te Ku's avatar Ching-Te Ku Committed by Kalle Valo
Browse files

wifi: rtw89: coex: Add LPS protocol radio state for RTL8852B 



This LPS state will not turn off RF, and it can still do some basic
traffic, only RTL8852B has the state. Coexistence need let Bluetooth
know WiFi is still alive to prevent some Bluetooth performance issue.

Signed-off-by: default avatarChing-Te Ku <ku920601@realtek.com>
Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230314020617.28193-2-pkshih@realtek.com
parent 21898a40

drivers/net/wireless/realtek/rtw89/coex.c

+9 −1
Original line number Diff line number Diff line
@@ -5728,6 +5728,11 @@ void rtw89_btc_ntfy_radio_state(struct rtw89_dev *rtwdev, enum btc_rfctrl rf_sta 
		wl->status.map.lps = BTC_LPS_RF_OFF;

		wl->status.map.busy = 0;

		break;

	case BTC_RFCTRL_LPS_WL_ON: /* LPS-Protocol (RFon) */

		wl->status.map.rf_off = 0;

		wl->status.map.lps = BTC_LPS_RF_ON;

		wl->status.map.busy = 0;

		break;

	case BTC_RFCTRL_WL_ON:

	default:

		wl->status.map.rf_off = 0;
@@ -5745,6 +5750,9 @@ void rtw89_btc_ntfy_radio_state(struct rtw89_dev *rtwdev, enum btc_rfctrl rf_sta 
		rtw89_btc_fw_en_rpt(rtwdev, RPT_EN_ALL, false);

		if (rf_state == BTC_RFCTRL_WL_OFF)

			_write_scbd(rtwdev, BTC_WSCB_ALL, false);

		else if (rf_state == BTC_RFCTRL_LPS_WL_ON &&

			 wl->status.map.lps_pre != BTC_LPS_OFF)

			_update_bt_scbd(rtwdev, true);

	}



	btc->dm.cnt_dm[BTC_DCNT_BTCNT_HANG] = 0;
@@ -5755,7 +5763,7 @@ void rtw89_btc_ntfy_radio_state(struct rtw89_dev *rtwdev, enum btc_rfctrl rf_sta 
		btc->dm.tdma_instant_excute = 0;



	_run_coex(rtwdev, BTC_RSN_NTFY_RADIO_STATE);



	btc->dm.tdma_instant_excute = 0;

	wl->status.map.rf_off_pre = wl->status.map.rf_off;

	wl->status.map.lps_pre = wl->status.map.lps;

}

drivers/net/wireless/realtek/rtw89/coex.h

+1 −0
Original line number Diff line number Diff line
@@ -131,6 +131,7 @@ enum btc_role_state { 
enum btc_rfctrl {

	BTC_RFCTRL_WL_OFF,

	BTC_RFCTRL_WL_ON,

	BTC_RFCTRL_LPS_WL_ON,

	BTC_RFCTRL_FW_CTRL,

	BTC_RFCTRL_MAX

};