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

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

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20240404001652.86207-5-luke@ljones.dev
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Luke D. Jones 2024-04-04 13:16:47 +13:00 committed by Hans de Goede
parent ae834a549e
commit e0ae0ecce4
3 changed files with 63 additions and 0 deletions
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9
Documentation/ABI/testing/sysfs-platform-asus-wmi
View File

@ -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

51
drivers/platform/x86/asus-wmi.c
View File

@ -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)

3
include/linux/platform_data/x86/asus-wmi.h
View File

@ -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