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platform/x86: asus-wmi: Implement TUF laptop keyboard power states 

Adds support for setting various power states of TUF keyboards.
These states are combinations of:
- boot, set if a boot animation is shown on keyboard
- awake, set if the keyboard LEDs are visible while laptop is on
- sleep, set if an animation is displayed while the laptop is suspended
- keyboard (unknown effect)

Adds two sysfs attributes to asus::kbd_backlight:
- kbd_rgb_state
- kbd_rgb_state_index

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20220825232251.345893-3-luke@ljones.dev
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Luke D. Jones 2022-08-26 11:22:51 +12:00 committed by Hans de Goede
parent e305a71cea
commit 61f6451529
2 changed files with 60 additions and 0 deletions
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57
drivers/platform/x86/asus-wmi.c
View File

@ -240,6 +240,7 @@ struct asus_wmi {
bool gpu_mux_mode_available;
bool kbd_rgb_mode_available;
bool kbd_rgb_state_available;
bool throttle_thermal_policy_available;
u8 throttle_thermal_policy_mode;
@ -782,9 +783,62 @@ static const struct attribute_group kbd_rgb_mode_group = {
.attrs = kbd_rgb_mode_attrs,
};
/* TUF Laptop Keyboard RGB State **********************************************/
static ssize_t kbd_rgb_state_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
u32 flags, cmd, boot, awake, sleep, keyboard;
int err;
if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5)
return -EINVAL;
if (cmd)
cmd = BIT(2);
flags = 0;
if (boot)
flags |= BIT(1);
if (awake)
flags |= BIT(3);
if (sleep)
flags |= BIT(5);
if (keyboard)
flags |= BIT(7);
/* 0xbd is the required default arg0 for the method. Nothing happens otherwise */
err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS,
ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL);
if (err)
return err;
return count;
}
static DEVICE_ATTR_WO(kbd_rgb_state);
static ssize_t kbd_rgb_state_index_show(struct device *device,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "%s\n", "cmd boot awake sleep keyboard");
}
static DEVICE_ATTR_RO(kbd_rgb_state_index);
static struct attribute *kbd_rgb_state_attrs[] = {
&dev_attr_kbd_rgb_state.attr,
&dev_attr_kbd_rgb_state_index.attr,
NULL,
};
static const struct attribute_group kbd_rgb_state_group = {
.attrs = kbd_rgb_state_attrs,
};
const struct attribute_group *kbd_rgb_mode_groups[] = {
NULL,
NULL,
NULL,
};
/* Battery ********************************************************************/
@ -1109,6 +1163,8 @@ static int asus_wmi_led_init(struct asus_wmi *asus)
if (asus->kbd_rgb_mode_available)
kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
if (asus->kbd_rgb_state_available)
kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
if (!asus->led_workqueue)
@ -3661,6 +3717,7 @@ static int asus_wmi_add(struct platform_device *pdev)
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);
asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
err = fan_boost_mode_check_present(asus);

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

@ -107,6 +107,9 @@
/* TUF laptop RGB modes/colours */
#define ASUS_WMI_DEVID_TUF_RGB_MODE 0x00100056
/* TUF laptop RGB power/state */
#define ASUS_WMI_DEVID_TUF_RGB_STATE 0x00100057
/* DSTS masks */
#define ASUS_WMI_DSTS_STATUS_BIT 0x00000001
#define ASUS_WMI_DSTS_UNKNOWN_BIT 0x00000002