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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: Yan-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: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Yan-Hsuan Chuang 2017-04-04 11:49:59 -05:00 committed by Kalle Valo
parent b59f02fb7f
commit 609d59acb6
1 changed files with 27 additions and 0 deletions
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27
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c
View File

@ -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;