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| author | Luke D. Jones <luke@ljones.dev> | 2023-06-30 07:35:45 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-07-12 17:01:31 +0200 |
| commit | 77ee9d299e6d69a75e9a3e15a1f09cd7c8f88ff0 (patch) | |
| tree | bd27641279e5d311cf342d8ec0355eb1a92de799 | |
| parent | platform/x86: hp-bioscfg: MAINTAINERS (diff) | |
| download | linux-77ee9d299e6d69a75e9a3e15a1f09cd7c8f88ff0.tar.xz linux-77ee9d299e6d69a75e9a3e15a1f09cd7c8f88ff0.zip | |
platform/x86: asus-wmi: add support for showing charger mode
Expose a WMI method in sysfs platform for showing which connected
charger the laptop is currently using.
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230630053552.976579-2-luke@ljones.dev
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-asus-wmi | 10 | ||||
| -rw-r--r-- | drivers/platform/x86/asus-wmi.c | 21 | ||||
| -rw-r--r-- | include/linux/platform_data/x86/asus-wmi.h | 3 |
3 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi index a77a004a1baa..eb29e3023c7b 100644 --- a/Documentation/ABI/testing/sysfs-platform-asus-wmi +++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi @@ -98,3 +98,13 @@ Description: Enable an LCD response-time boost to reduce or remove ghosting: * 0 - Disable, * 1 - Enable + +What: /sys/devices/platform/<platform>/charge_mode +Date: Jun 2023 +KernelVersion: 6.5 +Contact: "Luke Jones" <luke@ljones.dev> +Description: + Get the current charging mode being used: + * 1 - Barrel connected charger, + * 2 - USB-C charging + * 3 - Both connected, barrel used for charging
\ No newline at end of file diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 1038dfdcdd32..f23375d5fb82 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -237,6 +237,7 @@ struct asus_wmi { u8 fan_boost_mode_mask; u8 fan_boost_mode; + bool charge_mode_available; bool egpu_enable_available; bool dgpu_disable_available; bool gpu_mux_mode_available; @@ -586,6 +587,22 @@ static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus) asus_wmi_tablet_sw_report(asus, result); } +/* Charging mode, 1=Barrel, 2=USB ******************************************/ +static ssize_t charge_mode_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_wmi *asus = dev_get_drvdata(dev); + int result, value; + + result = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CHARGE_MODE, &value); + if (result < 0) + return result; + + return sysfs_emit(buf, "%d\n", value & 0xff); +} + +static DEVICE_ATTR_RO(charge_mode); + /* dGPU ********************************************************************/ static ssize_t dgpu_disable_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -3462,6 +3479,7 @@ static struct attribute *platform_attributes[] = { &dev_attr_camera.attr, &dev_attr_cardr.attr, &dev_attr_touchpad.attr, + &dev_attr_charge_mode.attr, &dev_attr_egpu_enable.attr, &dev_attr_dgpu_disable.attr, &dev_attr_gpu_mux_mode.attr, @@ -3491,6 +3509,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj, devid = ASUS_WMI_DEVID_LID_RESUME; else if (attr == &dev_attr_als_enable.attr) devid = ASUS_WMI_DEVID_ALS_ENABLE; + else if (attr == &dev_attr_charge_mode.attr) + ok = asus->charge_mode_available; else if (attr == &dev_attr_egpu_enable.attr) ok = asus->egpu_enable_available; else if (attr == &dev_attr_dgpu_disable.attr) @@ -3757,6 +3777,7 @@ static int asus_wmi_add(struct platform_device *pdev) if (err) goto fail_platform; + asus->charge_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CHARGE_MODE); asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU); asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU); asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX); diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h index 28234dc9fa6a..f90cafe26af1 100644 --- a/include/linux/platform_data/x86/asus-wmi.h +++ b/include/linux/platform_data/x86/asus-wmi.h @@ -95,6 +95,9 @@ /* Keyboard dock */ #define ASUS_WMI_DEVID_KBD_DOCK 0x00120063 +/* Charging mode - 1=Barrel, 2=USB */ +#define ASUS_WMI_DEVID_CHARGE_MODE 0x0012006C + /* dgpu on/off */ #define ASUS_WMI_DEVID_EGPU 0x00090019 |