From patchwork Mon May 8 08:12:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 13234222 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1BBE7C7EE2C for ; Mon, 8 May 2023 08:12:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233346AbjEHIMs (ORCPT ); Mon, 8 May 2023 04:12:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233210AbjEHIMp (ORCPT ); Mon, 8 May 2023 04:12:45 -0400 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D002B1A10A for ; Mon, 8 May 2023 01:12:41 -0700 (PDT) Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.77 with qID 3488COI80006068, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.81/5.90) with ESMTPS id 3488COI80006068 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=OK); Mon, 8 May 2023 16:12:24 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.17; Mon, 8 May 2023 16:12:29 +0800 Received: from [127.0.1.1] (172.21.69.188) 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 15.1.2375.7; Mon, 8 May 2023 16:12:29 +0800 From: Ping-Ke Shih To: CC: , Subject: [PATCH 1/3] wifi: rtw89: introduce realtek ACPI DSM method Date: Mon, 8 May 2023 16:12:09 +0800 Message-ID: <20230508081211.38760-2-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230508081211.38760-1-pkshih@realtek.com> References: <20230508081211.38760-1-pkshih@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.21.69.188] 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: fallback X-KSE-Antivirus-Interceptor-Info: fallback X-KSE-AntiSpam-Interceptor-Info: fallback Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Zong-Zhe Yang Introduce realtek ACPI DSM method to get required BIOS configurations. It will be used in the following commits. And, enum rtw89_acpi_dsm_func is added for listing the functions which are currently recognized. Signed-off-by: Zong-Zhe Yang Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/Makefile | 3 +- drivers/net/wireless/realtek/rtw89/acpi.c | 52 +++++++++++++++++++++ drivers/net/wireless/realtek/rtw89/acpi.h | 21 +++++++++ 3 files changed, 75 insertions(+), 1 deletion(-) create mode 100644 drivers/net/wireless/realtek/rtw89/acpi.c create mode 100644 drivers/net/wireless/realtek/rtw89/acpi.h diff --git a/drivers/net/wireless/realtek/rtw89/Makefile b/drivers/net/wireless/realtek/rtw89/Makefile index 2dc48fa10c6b6..99e870d6a7d7d 100644 --- a/drivers/net/wireless/realtek/rtw89/Makefile +++ b/drivers/net/wireless/realtek/rtw89/Makefile @@ -13,7 +13,8 @@ rtw89_core-y += core.o \ coex.o \ ps.o \ chan.o \ - ser.o + ser.o \ + acpi.o rtw89_core-$(CONFIG_PM) += wow.o diff --git a/drivers/net/wireless/realtek/rtw89/acpi.c b/drivers/net/wireless/realtek/rtw89/acpi.c new file mode 100644 index 0000000000000..8aaf83a2a6b48 --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/acpi.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* Copyright(c) 2021-2023 Realtek Corporation + */ + +#include +#include + +#include "acpi.h" +#include "debug.h" + +static const guid_t rtw89_guid = GUID_INIT(0xD2A8C3E8, 0x4B69, 0x4F00, + 0x82, 0xBD, 0xFE, 0x86, + 0x07, 0x80, 0x3A, 0xA7); + +static int rtw89_acpi_dsm_get(struct rtw89_dev *rtwdev, union acpi_object *obj, + u8 *value) +{ + switch (obj->type) { + case ACPI_TYPE_INTEGER: + *value = (u8)obj->integer.value; + break; + case ACPI_TYPE_BUFFER: + *value = obj->buffer.pointer[0]; + break; + default: + rtw89_debug(rtwdev, RTW89_DBG_UNEXP, + "acpi dsm return unhandled type: %d\n", obj->type); + return -EINVAL; + } + + return 0; +} + +int rtw89_acpi_evaluate_dsm(struct rtw89_dev *rtwdev, + enum rtw89_acpi_dsm_func func, u8 *value) +{ + union acpi_object *obj; + int ret; + + obj = acpi_evaluate_dsm(ACPI_HANDLE(rtwdev->dev), &rtw89_guid, + 0, func, NULL); + if (!obj) { + rtw89_debug(rtwdev, RTW89_DBG_UNEXP, + "acpi dsm fail to evaluate func: %d\n", func); + return -ENOENT; + } + + ret = rtw89_acpi_dsm_get(rtwdev, obj, value); + + ACPI_FREE(obj); + return ret; +} diff --git a/drivers/net/wireless/realtek/rtw89/acpi.h b/drivers/net/wireless/realtek/rtw89/acpi.h new file mode 100644 index 0000000000000..ed74d8ceb7339 --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/acpi.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* Copyright(c) 2021-2023 Realtek Corporation + */ + +#ifndef __RTW89_ACPI_H__ +#define __RTW89_ACPI_H__ + +#include "core.h" + +enum rtw89_acpi_dsm_func { + RTW89_ACPI_DSM_FUNC_IDN_BAND_SUP = 2, + RTW89_ACPI_DSM_FUNC_6G_DIS = 3, + RTW89_ACPI_DSM_FUNC_6G_BP = 4, + RTW89_ACPI_DSM_FUNC_TAS_EN = 5, + RTW89_ACPI_DSM_FUNC_59G_EN = 6, +}; + +int rtw89_acpi_evaluate_dsm(struct rtw89_dev *rtwdev, + enum rtw89_acpi_dsm_func func, u8 *value); + +#endif