Commit e0ae0ecc authored by Luke D. Jones's avatar Luke D. Jones Committed by Hans de Goede
Browse files

platform/x86: asus-wmi: support toggling POST sound 



Add support for toggling the BIOS POST sound on some ASUS laptops.

Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: default avatarLuke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20240404001652.86207-5-luke@ljones.dev


Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent ae834a54

Documentation/ABI/testing/sysfs-platform-asus-wmi

+9 −0
Original line number Diff line number Diff line
@@ -194,3 +194,12 @@ Contact: "Luke Jones" <luke@ljones.dev> 
Description:

		Set the target temperature limit of the Nvidia dGPU:

			* min=75, max=87



What:		/sys/devices/platform/<platform>/boot_sound

Date:		Apr 2024

KernelVersion:	6.10

Contact:	"Luke Jones" <luke@ljones.dev>

Description:

		Set if the BIOS POST sound is played on boot.

			* 0 - False,

			* 1 - True

drivers/platform/x86/asus-wmi.c

+51 −0
Original line number Diff line number Diff line
@@ -2115,6 +2115,54 @@ static ssize_t panel_od_store(struct device *dev, 
}

static DEVICE_ATTR_RW(panel_od);



/* Bootup sound ***************************************************************/



static ssize_t boot_sound_show(struct device *dev,

			     struct device_attribute *attr, char *buf)

{

	struct asus_wmi *asus = dev_get_drvdata(dev);

	int result;



	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND);

	if (result < 0)

		return result;



	return sysfs_emit(buf, "%d\n", result);

}



static ssize_t boot_sound_store(struct device *dev,

			      struct device_attribute *attr,

			      const char *buf, size_t count)

{

	int result, err;

	u32 snd;



	struct asus_wmi *asus = dev_get_drvdata(dev);



	result = kstrtou32(buf, 10, &snd);

	if (result)

		return result;



	if (snd > 1)

		return -EINVAL;



	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result);

	if (err) {

		pr_warn("Failed to set boot sound: %d\n", err);

		return err;

	}



	if (result > 1) {

		pr_warn("Failed to set panel boot sound (result): 0x%x\n", result);

		return -EIO;

	}



	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound");



	return count;

}

static DEVICE_ATTR_RW(boot_sound);



/* Mini-LED mode **************************************************************/

static ssize_t mini_led_mode_show(struct device *dev,

				   struct device_attribute *attr, char *buf)
@@ -4207,6 +4255,7 @@ static struct attribute *platform_attributes[] = { 
	&dev_attr_ppt_platform_sppt.attr,

	&dev_attr_nv_dynamic_boost.attr,

	&dev_attr_nv_temp_target.attr,

	&dev_attr_boot_sound.attr,

	&dev_attr_panel_od.attr,

	&dev_attr_mini_led_mode.attr,

	&dev_attr_available_mini_led_mode.attr,
@@ -4259,6 +4308,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj, 
		ok = asus->nv_dyn_boost_available;

	else if (attr == &dev_attr_nv_temp_target.attr)

		ok = asus->nv_temp_tgt_available;

	else if (attr == &dev_attr_boot_sound.attr)

		devid = ASUS_WMI_DEVID_BOOT_SOUND;

	else if (attr == &dev_attr_panel_od.attr)

		ok = asus->panel_overdrive_available;

	else if (attr == &dev_attr_mini_led_mode.attr)

include/linux/platform_data/x86/asus-wmi.h

+3 −0
Original line number Diff line number Diff line
@@ -137,6 +137,9 @@ 
/* TUF laptop RGB power/state */

#define ASUS_WMI_DEVID_TUF_RGB_STATE	0x00100057



/* Bootup sound control */

#define ASUS_WMI_DEVID_BOOT_SOUND	0x00130022



/* DSTS masks */

#define ASUS_WMI_DSTS_STATUS_BIT	0x00000001

#define ASUS_WMI_DSTS_UNKNOWN_BIT	0x00000002