From patchwork Sun May 16 10:53:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 439985 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=-19.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 3C032C43460 for ; Sun, 16 May 2021 10:54:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 191C161182 for ; Sun, 16 May 2021 10:54:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231258AbhEPKzN (ORCPT ); Sun, 16 May 2021 06:55:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:47796 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230032AbhEPKzI (ORCPT ); Sun, 16 May 2021 06:55:08 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2A8C161221; Sun, 16 May 2021 10:53:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1621162433; bh=Zwfc7j9efHMjOQ95FQowFtkZnRbepFXiueRLmwb0dSU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h8hK2cTxu3yUhpkVOFxXJ2rZE7FWYPtNo09bb+tPOG1HSmBOa+6mrwqQUeXaNlkgF BniqIJW1AcaIWAzQ9PEXwBuudao0SyKspIrbERhrt7xLuVIKgmfE2jyKFHgsyHAjbC f/7J9g5+FOgijog5s1NAmW7PmBq5bNtl4n8OeO9rsBgIxCMJJiwhysUGJDkjm5fhiN AwC69hh9Sl+NIlnOTfAh9ENMhp0jCGqbQKQRRFRlJG1bQl6VNk/h78MHSevGqI+tas 67pON+wX1GH3mzGWxzzHTfu/kF4VzH6fyb8Gm3OZ3DuE5ZvzDiW7bt6nK5VzXQHrkx vun6WWx9/UhJw== Received: by mail.kernel.org with local (Exim 4.94.2) (envelope-from ) id 1liEP9-003s8m-6c; Sun, 16 May 2021 12:53:51 +0200 From: Mauro Carvalho Chehab To: gregkh@linuxfoundation.org Cc: linuxarm@huawei.com, mauro.chehab@huawei.com, Mauro Carvalho Chehab , "Pavel Machek" , Mauro Carvalho Chehab , devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org, linux-staging@lists.linux.dev Subject: [PATCH 13/17] staging: nuc-led: add support for HDD activity default Date: Sun, 16 May 2021 12:53:41 +0200 Message-Id: <3e6c8001d221f724edc28107dbb8d05bf6a6801f.1621161037.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: References: MIME-Version: 1.0 Sender: Mauro Carvalho Chehab Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org There are two possible values for HDD activity behavior: - 0 Normally off, ON when active - 1 Normally on, OFF when active Implement a logic to set it. Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/nuc-led/nuc-wmi.c | 77 +++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) diff --git a/drivers/staging/nuc-led/nuc-wmi.c b/drivers/staging/nuc-led/nuc-wmi.c index 1a6e2b17c888..68143d45c34c 100644 --- a/drivers/staging/nuc-led/nuc-wmi.c +++ b/drivers/staging/nuc-led/nuc-wmi.c @@ -1626,10 +1626,86 @@ static umode_t nuc_wmi_led_blink_is_visible(struct kobject *kobj, return 0; } +/* HDD activity behavior */ +static ssize_t show_hdd_default(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct led_classdev *cdev = dev_get_drvdata(dev); + struct nuc_nmi_led *led = container_of(cdev, struct nuc_nmi_led, cdev); + u8 input[NUM_INPUT_ARGS] = { 0 }; + u8 output[NUM_OUTPUT_ARGS]; + int ctrl, ret, val; + + if (led->indicator != LED_IND_HDD_ACTIVITY) + return -EINVAL; + + ctrl = led->reg_table[led->indicator][LED_FUNC_HDD_BEHAVIOR]; + + if (!nuc_wmi_test_control(dev, led, ctrl)) + return -ENODEV; + + input[0] = LED_NEW_GET_CONTROL_ITEM; + input[1] = led->id; + input[2] = led->indicator; + input[3] = ctrl; + + ret = nuc_nmi_cmd(dev, LED_NEW_GET_STATUS, input, output); + if (ret) + return ret; + + val = output[0]; + + if (val == 0) + return scnprintf(buf, PAGE_SIZE, "off\n"); + + return scnprintf(buf, PAGE_SIZE, "on\n"); +} + +static ssize_t store_hdd_default(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t len) +{ + struct led_classdev *cdev = dev_get_drvdata(dev); + struct nuc_nmi_led *led = container_of(cdev, struct nuc_nmi_led, cdev); + u8 input[NUM_INPUT_ARGS] = { 0 }; + int ctrl, val, ret; + const char *tmp; + + if (led->indicator != LED_IND_HDD_ACTIVITY) + return -EINVAL; + + ctrl = led->reg_table[led->indicator][LED_FUNC_HDD_BEHAVIOR]; + + if (!nuc_wmi_test_control(dev, led, ctrl)) + return -ENODEV; + + tmp = strsep((char **)&buf, "\n"); + if (!strcmp(tmp, "on")) + val = 1; + else if (!strcmp(tmp, "off")) + val = 0; + else + return -EINVAL; + + input[0] = led->id; + input[1] = led->indicator; + input[2] = ctrl; + input[3] = val; + + ret = nuc_nmi_cmd(dev, LED_SET_VALUE, input, NULL); + if (ret) + return ret; + + return len; +} + + static LED_ATTR_RW(indicator); static LED_ATTR_RW(color); static LED_ATTR_RW(blink_behavior); static LED_ATTR_RW(blink_frequency); +static LED_ATTR_RW(hdd_default); LED_ATTR_POWER_STATE_RW(s0_brightness, brightness, 0); LED_ATTR_POWER_STATE_RW(s0_blink_behavior, blink_behavior, 0); @@ -1657,6 +1733,7 @@ LED_ATTR_POWER_STATE_RW(standby_blink_frequency, blink_frequency, 2); static struct attribute *nuc_wmi_led_attr[] = { &dev_attr_indicator.attr, + &dev_attr_hdd_default.attr, NULL, };