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Commit 609d59ac authored by Yan-Hsuan Chuang's avatar Yan-Hsuan Chuang Committed by Kalle Valo
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rtlwifi: btcoex: 23b 2ant: add pnp notidy to avoid LPS/IPS mismatch 



When driver is going to sleep, it does not leave LPS/IPS, thus the
BTCoex may have mismatch when driver wakes up. To avoid that, BTCoex
needs to clear the IPS/LPS state when it receives a pnp notify, then
it can properly set up the hw when driver wakes up.

Signed-off-by: default avatarYan-Hsuan Chuang <yhchuang@realtek.com>
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: default avatarKalle Valo <kvalo@codeaurora.org>
parent b59f02fb

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c

+27 −0
Original line number Diff line number Diff line
@@ -3826,6 +3826,33 @@ void ex_btc8723b2ant_halt_notify(struct btc_coexist *btcoexist) 
	ex_btc8723b2ant_media_status_notify(btcoexist, BTC_MEDIA_DISCONNECT);

}



void ex_btc8723b2ant_pnp_notify(struct btc_coexist *btcoexist, u8 pnp_state)

{

	struct rtl_priv *rtlpriv = btcoexist->adapter;



	RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, "[BTCoex], Pnp notify\n");



	if (pnp_state == BTC_WIFI_PNP_SLEEP) {

		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,

			 "[BTCoex], Pnp notify to SLEEP\n");



		/* Driver do not leave IPS/LPS when driver is going to sleep, so

		 * BTCoexistence think wifi is still under IPS/LPS

		 *

		 * BT should clear UnderIPS/UnderLPS state to avoid mismatch

		 * state after wakeup.

		 */

		coex_sta->under_ips = false;

		coex_sta->under_lps = false;

	} else if (pnp_state == BTC_WIFI_PNP_WAKE_UP) {

		RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD,

			 "[BTCoex], Pnp notify to WAKE UP\n");

		ex_btc8723b2ant_init_hwconfig(btcoexist);

		btc8723b2ant_init_coex_dm(btcoexist);

		btc8723b2ant_query_bt_info(btcoexist);

	}

}



void ex_btc8723b2ant_periodical(struct btc_coexist *btcoexist)

{

	struct rtl_priv *rtlpriv = btcoexist->adapter;