Return-path: Received: from mail-oi0-f67.google.com ([209.85.218.67]:35416 "EHLO mail-oi0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932948AbdEKTB3 (ORCPT ); Thu, 11 May 2017 15:01:29 -0400 Received: by mail-oi0-f67.google.com with SMTP id m17so5519659oik.2 for ; Thu, 11 May 2017 12:01:29 -0700 (PDT) From: Larry Finger To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org, Yan-Hsuan Chuang , Larry Finger , Pkshih , Birming Chiu , Shaofu , Steven Ting Subject: [PATCH v3 03/10] rtlwifi: btcoex: 21a 2ant: set wifi standby when halting of entering ips Date: Thu, 11 May 2017 14:01:12 -0500 Message-Id: <20170511190119.23426-4-Larry.Finger@lwfinger.net> (sfid-20170511_210145_119148_783BA7F8) In-Reply-To: <20170511190119.23426-1-Larry.Finger@lwfinger.net> References: <20170511190119.23426-1-Larry.Finger@lwfinger.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Yan-Hsuan Chuang If the wifi is going to halt or entering power saving, set it standby and allocate resource to bt. Routine btc8821a2ant_wifi_off_hw_cfg() restored. Signed-off-by: Yan-Hsuan Chuang Signed-off-by: Larry Finger Cc: Pkshih Cc: Birming Chiu Cc: Shaofu Cc: Steven Ting --- v2 - resubmit after removal of BT_AUTO_REPORT_XXXX symbols. v3 - no changes --- .../realtek/rtlwifi/btcoexist/halbtc8821a2ant.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c index 60386c7571e8..162d40ddf06d 100644 --- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c +++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c @@ -3555,6 +3555,26 @@ static void btc8821a2ant_run_coexist_mechanism(struct btc_coexist *btcoexist) } } +static void btc8821a2ant_wifi_off_hw_cfg(struct btc_coexist *btcoexist) +{ + u8 h2c_parameter[2] = {0}; + u32 fw_ver = 0; + + /* set wlan_act to low */ + btcoexist->btc_write_1byte(btcoexist, 0x76e, 0x4); + + /* WiFi goto standby while GNT_BT 0-->1 */ + btcoexist->btc_set_rf_reg(btcoexist, BTC_RF_A, 0x1, 0xfffff, 0x780); + btcoexist->btc_get(btcoexist, BTC_GET_U4_WIFI_FW_VER, &fw_ver); + 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 { + btcoexist->btc_write_1byte(btcoexist, 0x765, 0x18); + } +} + /************************************************************** * extern function start with ex_btc8821a2ant_ **************************************************************/ @@ -3841,6 +3861,7 @@ void ex_btc8821a2ant_ips_notify(struct btc_coexist *btcoexist, u8 type) RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, "[BTCoex], IPS ENTER notify\n"); coex_sta->under_ips = true; + btc8821a2ant_wifi_off_hw_cfg(btcoexist); btc8821a2ant_coex_all_off(btcoexist); } else if (BTC_IPS_LEAVE == type) { RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, @@ -4084,6 +4105,7 @@ void ex_btc8821a2ant_halt_notify(struct btc_coexist *btcoexist) RT_TRACE(rtlpriv, COMP_BT_COEXIST, DBG_LOUD, "[BTCoex], Halt notify\n"); + btc8821a2ant_wifi_off_hw_cfg(btcoexist); btc8821a2ant_ignore_wlan_act(btcoexist, FORCE_EXEC, true); ex_btc8821a2ant_media_status_notify(btcoexist, BTC_MEDIA_DISCONNECT); } -- 2.12.0