[PATCH v4 1/9] platform/x86: asus-wmi: add support for 2024 ROG Mini-LED
From: Luke D. Jones
Date: Wed Apr 03 2024 - 20:17:32 EST
Support the 2024 mini-led backlight and adjust the related functions
to select the relevant dev-id. Also add `available_mini_led_mode` to the
platform sysfs since the available mini-led levels can be different.
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
signed-off-by: Luke D. Jones <luke@xxxxxxxxxx>
---
.../ABI/testing/sysfs-platform-asus-wmi | 8 ++
drivers/platform/x86/asus-wmi.c | 96 +++++++++++++++++--
include/linux/platform_data/x86/asus-wmi.h | 1 +
3 files changed, 95 insertions(+), 10 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 8a7e25bde085..ef1ac1a20a71 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -126,6 +126,14 @@ Description:
Change the mini-LED mode:
* 0 - Single-zone,
* 1 - Multi-zone
+ * 2 - Multi-zone strong (available on newer generation mini-led)
+
+What: /sys/devices/platform/<platform>/available_mini_led_mode
+Date: Apr 2024
+KernelVersion: 6.10
+Contact: "Luke Jones" <luke@xxxxxxxxxx>
+Description:
+ List the available mini-led modes.
What: /sys/devices/platform/<platform>/ppt_pl1_spl
Date: Jun 2023
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 3f07bbf809ef..aa2a3b402e33 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -126,6 +126,17 @@ module_param(fnlock_default, bool, 0444);
#define ASUS_SCREENPAD_BRIGHT_MAX 255
#define ASUS_SCREENPAD_BRIGHT_DEFAULT 60
+#define ASUS_MINI_LED_MODE_MASK 0x03
+/* Standard modes for devices with only on/off */
+#define ASUS_MINI_LED_OFF 0x00
+#define ASUS_MINI_LED_ON 0x01
+/* New mode on some devices, define here to clarify remapping later */
+#define ASUS_MINI_LED_STRONG_MODE 0x02
+/* New modes for devices with 3 mini-led mode types */
+#define ASUS_MINI_LED_2024_WEAK 0x00
+#define ASUS_MINI_LED_2024_STRONG 0x01
+#define ASUS_MINI_LED_2024_OFF 0x02
+
/* Controls the power state of the USB0 hub on ROG Ally which input is on */
#define ASUS_USB0_PWR_EC0_CSEE "\\_SB.PCI0.SBRG.EC0.CSEE"
/* 300ms so far seems to produce a reliable result on AC and battery */
@@ -288,7 +299,7 @@ struct asus_wmi {
bool battery_rsoc_available;
bool panel_overdrive_available;
- bool mini_led_mode_available;
+ u32 mini_led_dev_id;
struct hotplug_slot hotplug_slot;
struct mutex hotplug_lock;
@@ -2108,13 +2119,33 @@ static ssize_t mini_led_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
- int result;
+ u32 value;
+ int err;
- result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
- if (result < 0)
- return result;
+ err = asus_wmi_get_devstate(asus, asus->mini_led_dev_id, &value);
+ if (err < 0)
+ return err;
+ value = value & ASUS_MINI_LED_MODE_MASK;
- return sysfs_emit(buf, "%d\n", result);
+ /*
+ * Remap the mode values to match previous generation mini-led. The last gen
+ * WMI 0 == off, while on this version WMI 2 ==off (flipped).
+ */
+ if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
+ switch (value) {
+ case ASUS_MINI_LED_2024_WEAK:
+ value = ASUS_MINI_LED_ON;
+ break;
+ case ASUS_MINI_LED_2024_STRONG:
+ value = ASUS_MINI_LED_STRONG_MODE;
+ break;
+ case ASUS_MINI_LED_2024_OFF:
+ value = ASUS_MINI_LED_OFF;
+ break;
+ }
+ }
+
+ return sysfs_emit(buf, "%d\n", value);
}
static ssize_t mini_led_mode_store(struct device *dev,
@@ -2130,11 +2161,32 @@ static ssize_t mini_led_mode_store(struct device *dev,
if (result)
return result;
- if (mode > 1)
+ if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE &&
+ mode > ASUS_MINI_LED_ON)
+ return -EINVAL;
+ if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2 &&
+ mode > ASUS_MINI_LED_STRONG_MODE)
return -EINVAL;
- err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MINI_LED_MODE, mode, &result);
+ /*
+ * Remap the mode values so expected behaviour is the same as the last
+ * generation of mini-LED with 0 == off, 1 == on.
+ */
+ if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
+ switch (mode) {
+ case ASUS_MINI_LED_OFF:
+ mode = ASUS_MINI_LED_2024_OFF;
+ break;
+ case ASUS_MINI_LED_ON:
+ mode = ASUS_MINI_LED_2024_WEAK;
+ break;
+ case ASUS_MINI_LED_STRONG_MODE:
+ mode = ASUS_MINI_LED_2024_STRONG;
+ break;
+ }
+ }
+ err = asus_wmi_set_devstate(asus->mini_led_dev_id, mode, &result);
if (err) {
pr_warn("Failed to set mini-LED: %d\n", err);
return err;
@@ -2151,6 +2203,23 @@ static ssize_t mini_led_mode_store(struct device *dev,
}
static DEVICE_ATTR_RW(mini_led_mode);
+static ssize_t available_mini_led_mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct asus_wmi *asus = dev_get_drvdata(dev);
+
+ switch (asus->mini_led_dev_id) {
+ case ASUS_WMI_DEVID_MINI_LED_MODE:
+ return sysfs_emit(buf, "0 1\n");
+ case ASUS_WMI_DEVID_MINI_LED_MODE2:
+ return sysfs_emit(buf, "0 1 2\n");
+ }
+
+ return sysfs_emit(buf, "0\n");
+}
+
+static DEVICE_ATTR_RO(available_mini_led_mode);
+
/* Quirks *********************************************************************/
static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
@@ -4139,6 +4208,7 @@ static struct attribute *platform_attributes[] = {
&dev_attr_nv_temp_target.attr,
&dev_attr_panel_od.attr,
&dev_attr_mini_led_mode.attr,
+ &dev_attr_available_mini_led_mode.attr,
NULL
};
@@ -4191,7 +4261,9 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
else if (attr == &dev_attr_panel_od.attr)
ok = asus->panel_overdrive_available;
else if (attr == &dev_attr_mini_led_mode.attr)
- ok = asus->mini_led_mode_available;
+ ok = asus->mini_led_dev_id != 0;
+ else if (attr == &dev_attr_available_mini_led_mode.attr)
+ ok = asus->mini_led_dev_id != 0;
if (devid != -1)
ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
@@ -4444,10 +4516,14 @@ static int asus_wmi_add(struct platform_device *pdev)
asus->nv_dyn_boost_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_DYN_BOOST);
asus->nv_temp_tgt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_THERM_TARGET);
asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
- asus->mini_led_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE)
&& dmi_match(DMI_BOARD_NAME, "RC71L");
+ if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE))
+ asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE;
+ else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE2))
+ asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE2;
+
err = fan_boost_mode_check_present(asus);
if (err)
goto fail_fan_boost_mode;
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index ab1c7deff118..9cadce10ad9a 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -71,6 +71,7 @@
#define ASUS_WMI_DEVID_LID_FLIP 0x00060062
#define ASUS_WMI_DEVID_LID_FLIP_ROG 0x00060077
#define ASUS_WMI_DEVID_MINI_LED_MODE 0x0005001E
+#define ASUS_WMI_DEVID_MINI_LED_MODE2 0x0005002E
/* Storage */
#define ASUS_WMI_DEVID_CARDREADER 0x00080013
--
2.44.0