From patchwork Fri Aug 20 04:35:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 500834 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B5E5C432BE for ; Fri, 20 Aug 2021 04:38:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F1DC460F91 for ; Fri, 20 Aug 2021 04:38:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235156AbhHTEil (ORCPT ); Fri, 20 Aug 2021 00:38:41 -0400 Received: from rtits2.realtek.com ([211.75.126.72]:39301 "EHLO rtits2.realtek.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233646AbhHTEik (ORCPT ); Fri, 20 Aug 2021 00:38:40 -0400 Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.73 with qID 17K4c02m9004290, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (smtpsrv.realtek.com[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.71/5.88) with ESMTPS id 17K4c02m9004290 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 20 Aug 2021 12:38:00 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36502.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.14; Fri, 20 Aug 2021 12:37:59 +0800 Received: from localhost (172.21.69.146) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Fri, 20 Aug 2021 12:37:59 +0800 From: Ping-Ke Shih To: CC: Subject: [PATCH v6 22/24] rtw89: add PS files Date: Fri, 20 Aug 2021 12:35:36 +0800 Message-ID: <20210820043538.12424-23-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210820043538.12424-1-pkshih@realtek.com> References: <20210820043538.12424-1-pkshih@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.21.69.146] X-ClientProxiedBy: RTEXMBS02.realtek.com.tw (172.21.6.95) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXMBS04.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: trusted connection X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Deterministic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 08/20/2021 04:22:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: =?big5?b?Q2xlYW4sIGJhc2VzOiAyMDIxLzgvMjAgpFekyCAw?= =?big5?b?MzowODowMA==?= X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled X-KSE-ServerInfo: RTEXH36502.realtek.com.tw, 9 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: 08/20/2021 04:18:54 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 0 X-KSE-AntiSpam-Info: Lua profiles 165674 [Aug 20 2021] X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: pkshih@realtek.com X-KSE-AntiSpam-Info: LuaCore: 454 454 39c6e442fd417993330528e7f9d13ac1bf7fdf8c 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: Rate: 0 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: 08/20/2021 04:22:00 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 | 154 ++++++++++++++++++++++++ drivers/net/wireless/realtek/rtw89/ps.h | 16 +++ 2 files changed, 170 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..5cde9276ac82 --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/ps.c @@ -0,0 +1,154 @@ +// 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" +#include "util.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); +} + +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 = { + .macid = mac_id, + .psmode = RTW89_MAC_AX_PS_MODE_LEGACY, + .lastrpwm = RTW89_LAST_RPWM_PS, + }; + + rtw89_btc_ntfy_radio_state(rtwdev, BTC_RFCTRL_FW_CTRL); + rtw89_fw_h2c_lps_parm(rtwdev, &lps_param); +} + +static void __rtw89_leave_lps(struct rtw89_dev *rtwdev, u8 mac_id) +{ + struct rtw89_lps_parm lps_param = { + .macid = mac_id, + .psmode = RTW89_MAC_AX_PS_MODE_ACTIVE, + .lastrpwm = RTW89_LAST_RPWM_ACTIVE, + }; + + rtw89_fw_h2c_lps_parm(rtwdev, &lps_param); + 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 rtw89_leave_lps_vif(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif) +{ + 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) +{ + struct rtw89_vif *rtwvif; + + lockdep_assert_held(&rtwdev->mutex); + + if (!test_and_clear_bit(RTW89_FLAG_LEISURE_PS, rtwdev->flags)) + return; + + rtw89_hci_link_ps(rtwdev, false); + rtw89_for_each_rtwvif(rtwdev, rtwvif) + rtw89_leave_lps_vif(rtwdev, rtwvif); +} + +void rtw89_enter_ips(struct rtw89_dev *rtwdev) +{ + struct rtw89_vif *rtwvif; + + set_bit(RTW89_FLAG_INACTIVE_PS, rtwdev->flags); + + rtw89_for_each_rtwvif(rtwdev, rtwvif) + rtw89_mac_vif_deinit(rtwdev, rtwvif); + + rtw89_core_stop(rtwdev); + rtw89_hci_link_ps(rtwdev, true); +} + +void rtw89_leave_ips(struct rtw89_dev *rtwdev) +{ + struct rtw89_vif *rtwvif; + 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_for_each_rtwvif(rtwdev, rtwvif) + rtw89_mac_vif_init(rtwdev, rtwvif); + + 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..a184b68994aa --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/ps.h @@ -0,0 +1,16 @@ +/* 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_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