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Thu, 29 Apr 2021 16:04:09 +0800 From: Ping-Ke Shih To: CC: Subject: [PATCH v4 18/19] rtw89: add PS files Date: Thu, 29 Apr 2021 16:01:48 +0800 Message-ID: <20210429080149.7068-19-pkshih@realtek.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20210429080149.7068-1-pkshih@realtek.com> References: <20210429080149.7068-1-pkshih@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.21.69.146] X-ClientProxiedBy: RTEXMBS01.realtek.com.tw (172.21.6.94) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXMBS04.realtek.com.tw, 9 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: =?big5_tw?b?Q2xlYW4sIGJhc2VzOiAyMDIxLzQvMjkgpFekyCAwMjo0?= =?big5_tw?b?NTowMA==?= X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled X-KSE-AntiSpam-Outbound-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 5.9.20, Database issued on: 04/29/2021 07:29:45 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 163401 [Apr 29 2021] X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: pkshih@realtek.com X-KSE-AntiSpam-Info: LuaCore: 445 445 d5f7ae5578b0f01c45f955a2a751ac25953290c9 X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_all_Bitcoin, bb} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;realtek.com:7.1.1;127.0.0.199:7.1.2 X-KSE-AntiSpam-Info: {Track_Chinese_Simplified, headers_charset} X-KSE-AntiSpam-Info: Rate: 10 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 04/29/2021 07:33:00 X-KSE-ServerInfo: RTEXH36502.realtek.com.tw, 9 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: =?big5_tw?b?Q2xlYW4sIGJhc2VzOiAyMDIxLzQvMjkgpFekyCAwNzoy?= =?big5_tw?b?MDowMA==?= X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled X-KSE-AntiSpam-Outbound-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 5.9.20, Database issued on: 04/29/2021 07:51:53 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 163403 [Apr 29 2021] X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: pkshih@realtek.com X-KSE-AntiSpam-Info: LuaCore: 445 445 d5f7ae5578b0f01c45f955a2a751ac25953290c9 X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_all_Bitcoin, bb} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: realtek.com:7.1.1;127.0.0.199:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1 X-KSE-AntiSpam-Info: {Track_Chinese_Simplified, headers_charset} X-KSE-AntiSpam-Info: Rate: 10 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 04/29/2021 07:54:00 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Power saving contains two main types -- IPS (idle PS) and LPS (Leisure PS). If there's no any connection, wifi can enter IPS mode that power consumption is the lowest. After connecting to an AP, it can only wake up at TBTT to receive beacon to check if AP is buffering any packets; this case is called LPS mode that the average power is low, but peak appears at TBTT. With heavy traffic, no power saving mechanism operates, and it costs high power in this case. Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/ps.c | 148 ++++++++++++++++++++++++ drivers/net/wireless/realtek/rtw89/ps.h | 15 +++ 2 files changed, 163 insertions(+) create mode 100644 drivers/net/wireless/realtek/rtw89/ps.c create mode 100644 drivers/net/wireless/realtek/rtw89/ps.h diff --git a/drivers/net/wireless/realtek/rtw89/ps.c b/drivers/net/wireless/realtek/rtw89/ps.c new file mode 100644 index 000000000000..5c1777cca40c --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/ps.c @@ -0,0 +1,148 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* Copyright(c) 2019-2020 Realtek Corporation + */ + +#include "coex.h" +#include "core.h" +#include "debug.h" +#include "fw.h" +#include "mac.h" +#include "ps.h" +#include "reg.h" + +static int rtw89_fw_leave_lps_check(struct rtw89_dev *rtwdev, u8 macid) +{ + u32 pwr_en_bit = 0xE; + u32 chk_msk = pwr_en_bit << (4 * macid); + u32 polling; + int ret; + + ret = read_poll_timeout_atomic(rtw89_read32_mask, polling, !polling, + 1000, 50000, false, rtwdev, + R_AX_PPWRBIT_SETTING, chk_msk); + if (ret) { + rtw89_info(rtwdev, "rtw89: failed to leave lps state\n"); + return -EBUSY; + } + + return 0; +} + +static void __rtw89_enter_ps_mode(struct rtw89_dev *rtwdev) +{ + if (!rtwdev->ps_mode) + return; + + if (test_and_set_bit(RTW89_FLAG_LOW_POWER_MODE, rtwdev->flags)) + return; + + rtw89_mac_power_mode_change(rtwdev, true); +} + +static void __rtw89_leave_ps_mode(struct rtw89_dev *rtwdev) +{ + if (!rtwdev->ps_mode) + return; + + if (test_and_clear_bit(RTW89_FLAG_LOW_POWER_MODE, rtwdev->flags)) + rtw89_mac_power_mode_change(rtwdev, false); +} + +static void __rtw89_enter_lps(struct rtw89_dev *rtwdev, u8 mac_id) +{ + struct rtw89_lps_parm *lps_param = &rtwdev->lps_parm; + + lps_param->macid = mac_id; + lps_param->psmode = RTW89_MAC_AX_PS_MODE_LEGACY; + lps_param->lastrpwm = RTW89_LAST_RPWM_PS; + + rtw89_btc_ntfy_radio_state(rtwdev, BTC_RFCTRL_FW_CTRL); + rtw89_fw_h2c_lps_parm(rtwdev, mac_id); +} + +static void __rtw89_leave_lps(struct rtw89_dev *rtwdev, u8 mac_id) +{ + struct rtw89_lps_parm *lps_param = &rtwdev->lps_parm; + + lps_param->macid = mac_id; + lps_param->psmode = RTW89_MAC_AX_PS_MODE_ACTIVE; + lps_param->lastrpwm = RTW89_LAST_RPWM_ACTIVE; + + rtw89_fw_h2c_lps_parm(rtwdev, mac_id); + rtw89_fw_leave_lps_check(rtwdev, 0); + rtw89_btc_ntfy_radio_state(rtwdev, BTC_RFCTRL_WL_ON); +} + +void rtw89_leave_ps_mode(struct rtw89_dev *rtwdev) +{ + lockdep_assert_held(&rtwdev->mutex); + + __rtw89_leave_ps_mode(rtwdev); +} + +void rtw89_enter_lps(struct rtw89_dev *rtwdev, u8 mac_id) +{ + lockdep_assert_held(&rtwdev->mutex); + + if (test_and_set_bit(RTW89_FLAG_LEISURE_PS, rtwdev->flags)) + return; + + __rtw89_enter_lps(rtwdev, mac_id); + __rtw89_enter_ps_mode(rtwdev); + rtw89_hci_link_ps(rtwdev, true); +} + +static void rtw_leave_lps_iter(void *data, u8 *mac, struct ieee80211_vif *vif) +{ + struct rtw89_dev *rtwdev = data; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)vif->drv_priv; + + if (rtwvif->wifi_role != RTW89_WIFI_ROLE_STATION) + return; + + __rtw89_leave_ps_mode(rtwdev); + __rtw89_leave_lps(rtwdev, rtwvif->mac_id); +} + +void rtw89_leave_lps(struct rtw89_dev *rtwdev) +{ + lockdep_assert_held(&rtwdev->mutex); + + if (!test_and_clear_bit(RTW89_FLAG_LEISURE_PS, rtwdev->flags)) + return; + + rtw89_hci_link_ps(rtwdev, false); + rtw89_iterate_vifs_atomic(rtwdev, rtw_leave_lps_iter, rtwdev); +} + +void rtw89_enter_ips(struct rtw89_dev *rtwdev) +{ + set_bit(RTW89_FLAG_INACTIVE_PS, rtwdev->flags); + + rtw89_iterate_vifs_atomic(rtwdev, rtw_remove_vif_cfg_iter, rtwdev); + + rtw89_core_stop(rtwdev); + rtw89_hci_link_ps(rtwdev, true); +} + +void rtw89_leave_ips(struct rtw89_dev *rtwdev) +{ + int ret; + + rtw89_hci_link_ps(rtwdev, false); + ret = rtw89_core_start(rtwdev); + if (ret) + rtw89_err(rtwdev, "failed to leave idle state\n"); + + rtw89_set_channel(rtwdev); + + rtw89_iterate_vifs_atomic(rtwdev, rtw_restore_vif_cfg_iter, rtwdev); + + clear_bit(RTW89_FLAG_INACTIVE_PS, rtwdev->flags); +} + +void rtw89_set_coex_ctrl_lps(struct rtw89_dev *rtwdev, bool btc_ctrl) +{ + if (btc_ctrl) + rtw89_leave_lps(rtwdev); +} diff --git a/drivers/net/wireless/realtek/rtw89/ps.h b/drivers/net/wireless/realtek/rtw89/ps.h new file mode 100644 index 000000000000..a057f7d8e83f --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/ps.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* Copyright(c) 2019-2020 Realtek Corporation + */ + +#ifndef __RTW89_PS_H_ +#define __RTW89_PS_H_ + +void rtw89_enter_lps(struct rtw89_dev *rtwdev, u8 mac_id); +void rtw89_leave_lps(struct rtw89_dev *rtwdev); +void rtw89_leave_ps_mode(struct rtw89_dev *rtwdev); +void rtw89_enter_ips(struct rtw89_dev *rtwdev); +void rtw89_leave_ips(struct rtw89_dev *rtwdev); +void rtw89_set_coex_ctrl_lps(struct rtw89_dev *rtwdev, bool btc_ctrl); + +#endif