From: "Luke D. Jones" To: hdegoede@redhat.com Cc: corentin.chary@gmail.com, ilpo.jarvinen@linux.intel.com, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, "Luke D. Jones" Subject: [PATCH v4 4/9] platform/x86: asus-wmi: support toggling POST sound Date: Thu, 4 Apr 2024 13:16:47 +1300 [thread overview] Message-ID: <20240404001652.86207-5-luke@ljones.dev> (raw) In-Reply-To: <20240404001652.86207-1-luke@ljones.dev> Add support for toggling the BIOS POST sound on some ASUS laptops. Reviewed-by: Ilpo Järvinen Signed-off-by: Luke D. Jones --- .../ABI/testing/sysfs-platform-asus-wmi | 9 ++++ drivers/platform/x86/asus-wmi.c | 51 +++++++++++++++++++ include/linux/platform_data/x86/asus-wmi.h | 3 ++ 3 files changed, 63 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi index ef1ac1a20a71..72933527d2e4 100644 --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi @@ -194,3 +194,12 @@ Contact: "Luke Jones" Description: Set the target temperature limit of the Nvidia dGPU: * min=75, max=87 + +What: /sys/devices/platform//boot_sound +Date: Apr 2024 +KernelVersion: 6.10 +Contact: "Luke Jones" +Description: + Set if the BIOS POST sound is played on boot. + * 0 - False, + * 1 - True diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 6896d056d227..6c353b8e8da9 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -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) diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h index 3e9a01467c67..3eb5cd6773ad 100644 --- a/include/linux/platform_data/x86/asus-wmi.h +++ b/include/linux/platform_data/x86/asus-wmi.h @@ -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 -- 2.44.0