linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: gregkh@linuxfoundation.org, linuxarm@huawei.com,
	mauro.chehab@huawei.com, Pavel Machek <pavel@ucw.cz>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
	linux-leds@vger.kernel.org, linux-staging@lists.linux.dev
Subject: Re: [PATCH 07/17] staging: nuc-wmi: add basic support for NUC6 WMI
Date: Mon, 17 May 2021 12:44:03 +0300	[thread overview]
Message-ID: <20210517094403.GE1955@kadam> (raw)
In-Reply-To: <ad868addca76f436d32cfbb3d8516d7d0dab83a2.1621161037.git.mchehab+huawei@kernel.org>

On Sun, May 16, 2021 at 12:53:35PM +0200, Mauro Carvalho Chehab wrote:
> +static int nuc_wmi_query_leds_nuc6(struct device *dev)
> +{
> +	// FIXME: add a check for the specific models that are known to work
> +	struct nuc_wmi *priv = dev_get_drvdata(dev);
> +	u8 cmd, input[NUM_INPUT_ARGS] = { 0 };
> +	u8 output[NUM_OUTPUT_ARGS];
> +	struct nuc_nmi_led *led;
> +	int ret;
> +
> +	cmd = LED_OLD_GET_STATUS;
> +	input[0] = LED_OLD_GET_S0_POWER;
> +	ret = nuc_nmi_cmd(dev, cmd, input, output);
> +	if (ret) {
> +		dev_warn(dev, "Get S0 Power: error %d\n", ret);
> +		return ret;
> +	}
> +
> +	led = &priv->led[priv->num_leds];
> +	led->id = POWER_LED;
> +	led->color_type = LED_BLUE_AMBER;
> +	led->avail_indicators = LED_IND_POWER_STATE;
> +	led->indicator = fls(led->avail_indicators);
> +	priv->num_leds++;
> +
> +	cmd = LED_OLD_GET_STATUS;
> +	input[0] = LED_OLD_GET_S0_RING;
> +	ret = nuc_nmi_cmd(dev, cmd, input, output);
> +	if (ret) {
> +		dev_warn(dev, "Get S0 Ring: error %d\n", ret);
> +		return ret;
> +	}
> +	led = &priv->led[priv->num_leds];
> +	led->id = RING_LED;
> +	led->color_type = LED_BLUE_AMBER;
> +	led->avail_indicators = LED_IND_SOFTWARE;
> +	led->indicator = fls(led->avail_indicators);
> +	priv->num_leds++;
> +
> +	return ret;

return 0;

> +}
> +
>  static int nuc_wmi_query_leds(struct device *dev, enum led_api_rev *api_rev)
>  {
>  	struct nuc_wmi *priv = dev_get_drvdata(dev);
>  	u8 input[NUM_INPUT_ARGS] = { 0 };
>  	u8 output[NUM_OUTPUT_ARGS];
> -	int id, ret, ver = LED_API_UNKNOWN;
> +	int id, ret, ver = LED_API_UNKNOWN, nuc_ver = 0;
>  	u8 leds;
> +	const char *dmi_name;
> +
> +	dmi_name = dmi_get_system_info(DMI_PRODUCT_NAME);
> +	if (!dmi_name || !*dmi_name)
> +		dmi_name = dmi_get_system_info(DMI_BOARD_NAME);
> +
> +	if (strncmp(dmi_name, "NUC", 3))
> +		return -ENODEV;
> +
> +	dmi_name +=3;
> +	while (*dmi_name) {
> +		if (*dmi_name < '0' || *dmi_name > '9')
> +			break;
> +		nuc_ver = (*dmi_name - '0') + nuc_ver * 10;
> +		dmi_name++;
> +	}
> +
> +	if (nuc_ver < 6)
> +		return -ENODEV;
> +
> +	if (nuc_ver < 8) {
> +		*api_rev = LED_API_NUC6;
> +		return nuc_wmi_query_leds_nuc6(dev);
> +	}
>  
> -	/*
> -	 * List all LED types support in the platform
> -	 *
> -	 * Should work with both NUC8iXXX and NUC10iXXX
> -	 *
> -	 * FIXME: Should add a fallback code for it to work with older NUCs,
> -	 * as LED_QUERY returns an error on older devices like Skull Canyon.
> -	 */
>  	input[0] = LED_QUERY_LIST_ALL;
>  	ret = nuc_nmi_cmd(dev, LED_QUERY, input, output);
> -	if (ret == -ENOENT) {
> -		ver = LED_API_NUC6;
> -	} else if (ret) {
> +	if (ret) {
>  		dev_warn(dev, "error %d while listing all LEDs\n", ret);
>  		return ret;
>  	} else {
>  		leds = output[0];
>  	}

Delete the else and pull the assignment in a tab.

>  
> -	if (ver != LED_API_NUC6) {
> -		ret = nuc_nmi_cmd(dev, LED_VERSION_CONTROL, input, output);
> -		ver = output[0] | output[1] << 16;
> -		if (!ver)
> -			ver = LED_API_REV_0_64;
> -		else if (ver == 0x0126)
> -			ver = LED_API_REV_1_0;
> -	}
> +	ret = nuc_nmi_cmd(dev, LED_VERSION_CONTROL, input, output);
> +	ver = output[0] | output[1] << 16;
> +	if (!ver)
> +		*api_rev = LED_API_REV_0_64;
> +	else if (ver == 0x0126)
> +		*api_rev = LED_API_REV_1_0;
>  

regards,
dan carpenter

  reply	other threads:[~2021-05-17  9:44 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-16 10:53 [PATCH 00/17] Add an experimental driver for Intel NUC leds Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 01/17] staging: add support for NUC WMI LEDs Mauro Carvalho Chehab
2021-05-16 16:12   ` Randy Dunlap
2021-05-17  8:20   ` Greg KH
2021-05-16 10:53 ` [PATCH 02/17] staging: nuc-wmi: detect WMI API detection Mauro Carvalho Chehab
2021-05-17  9:35   ` Dan Carpenter
2021-05-16 10:53 ` [PATCH 03/17] staging: nuc-wmi: add support for changing S0 brightness Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 04/17] staging: nuc-wmi: add all types of brightness Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 05/17] staging: nuc-wmi: allow changing the LED colors Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 06/17] staging: nuc-wmi: add support for WMI API version 1.0 Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 07/17] staging: nuc-wmi: add basic support for NUC6 WMI Mauro Carvalho Chehab
2021-05-17  9:44   ` Dan Carpenter [this message]
2021-05-16 10:53 ` [PATCH 08/17] staging: muc-wmi: add brightness and color for NUC6 API Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 09/17] staging: nuc-wmi: Add support to blink behavior for NUC8/10 Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 10/17] staging: nuc-wmi: get rid of an unused variable Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 11/17] staging: nuc-wmi: implement blink control for NUC6 Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 12/17] staging: nuc-wmi: better detect NUC6/NUC7 devices Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 13/17] staging: nuc-led: add support for HDD activity default Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 14/17] staging: nuc-wmi: fix software blink behavior logic Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 15/17] staging: nuc-wmi: add support for changing the ethernet type indicator Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 16/17] staging: nuc-wmi: add support for changing the power limit scheme Mauro Carvalho Chehab
2021-05-16 10:53 ` [PATCH 17/17] staging: nuc-led: update the TODOs Mauro Carvalho Chehab
2021-05-16 18:21   ` Pavel Machek
2021-05-17  6:30     ` Mauro Carvalho Chehab
2021-05-17  8:05       ` Pavel Machek
2021-05-17  8:57         ` Mauro Carvalho Chehab
2021-05-17  9:12           ` Mauro Carvalho Chehab
2021-05-17 12:19         ` Mauro Carvalho Chehab
2021-05-17  8:18 ` [PATCH 00/17] Add an experimental driver for Intel NUC leds Greg KH
2021-05-17  9:02   ` Mauro Carvalho Chehab
2021-05-17  9:08     ` Greg KH

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210517094403.GE1955@kadam \
    --to=dan.carpenter@oracle.com \
    --cc=devel@driverdev.osuosl.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-leds@vger.kernel.org \
    --cc=linux-staging@lists.linux.dev \
    --cc=linuxarm@huawei.com \
    --cc=mauro.chehab@huawei.com \
    --cc=mchehab+huawei@kernel.org \
    --cc=mchehab@kernel.org \
    --cc=pavel@ucw.cz \
    --subject='Re: [PATCH 07/17] staging: nuc-wmi: add basic support for NUC6 WMI' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).