summarylogtreecommitdiffstats
path: root/0006-platform-x86-asus-wmi-add-support-for-ASUS-screenpad.patch
diff options
context:
space:
mode:
authorTaijian2023-07-01 23:41:28 +0200
committerTaijian2023-07-01 23:41:28 +0200
commit87d752b3493b77b4ec78d2c5b3cf509052c2bb37 (patch)
tree0f47799879d8df7983691b5ddb8a62464f6da70e /0006-platform-x86-asus-wmi-add-support-for-ASUS-screenpad.patch
parentf20d5cb89f7d02c9588a82577e09847f858d560f (diff)
downloadaur-87d752b3493b77b4ec78d2c5b3cf509052c2bb37.tar.gz
update to 6.3.9
Diffstat (limited to '0006-platform-x86-asus-wmi-add-support-for-ASUS-screenpad.patch')
-rw-r--r--0006-platform-x86-asus-wmi-add-support-for-ASUS-screenpad.patch226
1 files changed, 0 insertions, 226 deletions
diff --git a/0006-platform-x86-asus-wmi-add-support-for-ASUS-screenpad.patch b/0006-platform-x86-asus-wmi-add-support-for-ASUS-screenpad.patch
deleted file mode 100644
index b25f6d10463f..000000000000
--- a/0006-platform-x86-asus-wmi-add-support-for-ASUS-screenpad.patch
+++ /dev/null
@@ -1,226 +0,0 @@
-From af85785d35b6a5f9c73126224b4eb674980eb835 Mon Sep 17 00:00:00 2001
-From: "Luke D. Jones" <luke@ljones.dev>
-Date: Sun, 30 Apr 2023 10:56:34 +1200
-Subject: [PATCH 06/11] platform/x86: asus-wmi: add support for ASUS screenpad
-
-Add support for the WMI methods used to turn off and adjust the
-brightness of the secondary "screenpad" device found on some high-end
-ASUS laptops like the GX650P series and others.
-
-These methods are utilised in a new backlight device named:
-- asus_screenpad
-
-Signed-off-by: Luke D. Jones <luke@ljones.dev>
----
- drivers/platform/x86/asus-wmi.c | 131 +++++++++++++++++++++
- drivers/platform/x86/asus-wmi.h | 1 +
- include/linux/platform_data/x86/asus-wmi.h | 4 +
- 3 files changed, 136 insertions(+)
-
-diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
-index 1038dfdcdd32..5edf9ece51dc 100644
---- a/drivers/platform/x86/asus-wmi.c
-+++ b/drivers/platform/x86/asus-wmi.c
-@@ -25,6 +25,7 @@
- #include <linux/input/sparse-keymap.h>
- #include <linux/kernel.h>
- #include <linux/leds.h>
-+#include <linux/minmax.h>
- #include <linux/module.h>
- #include <linux/pci.h>
- #include <linux/pci_hotplug.h>
-@@ -200,6 +201,7 @@ struct asus_wmi {
-
- struct input_dev *inputdev;
- struct backlight_device *backlight_device;
-+ struct backlight_device *screenpad_backlight_device;
- struct platform_device *platform_device;
-
- struct led_classdev wlan_led;
-@@ -3208,6 +3210,125 @@ static int is_display_toggle(int code)
- return 0;
- }
-
-+/* Screenpad backlight *******************************************************/
-+
-+static int read_screenpad_backlight_power(struct asus_wmi *asus)
-+{
-+ int ret = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_SCREENPAD_POWER);
-+
-+ if (ret < 0)
-+ return ret;
-+ /* 1 == powered */
-+ return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
-+}
-+
-+static int read_screenpad_brightness(struct backlight_device *bd)
-+{
-+ struct asus_wmi *asus = bl_get_data(bd);
-+ u32 retval;
-+ int err;
-+
-+ err = read_screenpad_backlight_power(asus);
-+ if (err < 0)
-+ return err;
-+ /* The device brightness can only be read if powered, so return stored */
-+ if (err == FB_BLANK_POWERDOWN)
-+ return asus->driver->screenpad_brightness;
-+
-+ err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT, &retval);
-+ if (err < 0)
-+ return err;
-+
-+ return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
-+}
-+
-+static int update_screenpad_bl_status(struct backlight_device *bd)
-+{
-+ struct asus_wmi *asus = bl_get_data(bd);
-+ int power, err = 0;
-+ u32 ctrl_param;
-+
-+ power = read_screenpad_backlight_power(asus);
-+ if (power < 0)
-+ return power;
-+
-+ if (bd->props.power != power) {
-+ if (power != FB_BLANK_UNBLANK) {
-+ /* Only brightness > 0 can power it back on */
-+ ctrl_param = max(1, asus->driver->screenpad_brightness);
-+ err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT,
-+ ctrl_param, NULL);
-+ } else {
-+ err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_POWER, 0, NULL);
-+ }
-+ } else if (power == FB_BLANK_UNBLANK) {
-+ /* Only set brightness if powered on or we get invalid/unsync state */
-+ ctrl_param = bd->props.brightness;
-+ err = asus_wmi_set_devstate(ASUS_WMI_DEVID_SCREENPAD_LIGHT, ctrl_param, NULL);
-+ }
-+
-+ /* Ensure brightness is stored to turn back on with */
-+ asus->driver->screenpad_brightness = bd->props.brightness;
-+
-+ return err;
-+}
-+
-+static const struct backlight_ops asus_screenpad_bl_ops = {
-+ .get_brightness = read_screenpad_brightness,
-+ .update_status = update_screenpad_bl_status,
-+ .options = BL_CORE_SUSPENDRESUME,
-+};
-+
-+static int asus_screenpad_init(struct asus_wmi *asus)
-+{
-+ struct backlight_device *bd;
-+ struct backlight_properties props;
-+ int power, brightness;
-+
-+ power = read_screenpad_backlight_power(asus);
-+ if (power == -ENODEV)
-+ power = FB_BLANK_UNBLANK;
-+ else if (power < 0)
-+ return power;
-+
-+ memset(&props, 0, sizeof(struct backlight_properties));
-+ props.type = BACKLIGHT_RAW; /* ensure this bd is last to be picked */
-+ props.max_brightness = 255;
-+ bd = backlight_device_register("asus_screenpad",
-+ &asus->platform_device->dev, asus,
-+ &asus_screenpad_bl_ops, &props);
-+ if (IS_ERR(bd)) {
-+ pr_err("Could not register backlight device\n");
-+ return PTR_ERR(bd);
-+ }
-+
-+ asus->screenpad_backlight_device = bd;
-+
-+ brightness = read_screenpad_brightness(bd);
-+ if (brightness < 0)
-+ return brightness;
-+ /*
-+ * Counter an odd behaviour where default is set to < 13 if it was 0 on boot.
-+ * 60 is subjective, but accepted as a good compromise to retain visibility.
-+ */
-+ if (brightness < 60)
-+ brightness = 60;
-+
-+ asus->driver->screenpad_brightness = brightness;
-+ bd->props.brightness = brightness;
-+ bd->props.power = power;
-+ backlight_update_status(bd);
-+
-+ return 0;
-+}
-+
-+static void asus_screenpad_exit(struct asus_wmi *asus)
-+{
-+ backlight_device_unregister(asus->screenpad_backlight_device);
-+
-+ asus->screenpad_backlight_device = NULL;
-+}
-+
- /* Fn-lock ********************************************************************/
-
- static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
-@@ -3823,6 +3944,12 @@ static int asus_wmi_add(struct platform_device *pdev)
- } else if (asus->driver->quirks->wmi_backlight_set_devstate)
- err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
-
-+ if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_SCREENPAD_LIGHT)) {
-+ err = asus_screenpad_init(asus);
-+ if (err && err != -ENODEV)
-+ goto fail_screenpad;
-+ }
-+
- if (asus_wmi_has_fnlock_key(asus)) {
- asus->fnlock_locked = fnlock_default;
- asus_wmi_fnlock_update(asus);
-@@ -3853,6 +3980,9 @@ static int asus_wmi_add(struct platform_device *pdev)
- asus_wmi_input_exit(asus);
- fail_input:
- asus_wmi_sysfs_exit(asus->platform_device);
-+fail_screenpad:
-+ if (asus->screenpad_backlight_device)
-+ asus_screenpad_exit(asus);
- fail_sysfs:
- fail_throttle_thermal_policy:
- fail_custom_fan_curve:
-@@ -3872,6 +4002,7 @@ static int asus_wmi_remove(struct platform_device *device)
- asus = platform_get_drvdata(device);
- wmi_remove_notify_handler(asus->driver->event_guid);
- asus_wmi_backlight_exit(asus);
-+ asus_screenpad_exit(asus);
- asus_wmi_input_exit(asus);
- asus_wmi_led_exit(asus);
- asus_wmi_rfkill_exit(asus);
-diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
-index a478ebfd34df..5fbdd0eafa02 100644
---- a/drivers/platform/x86/asus-wmi.h
-+++ b/drivers/platform/x86/asus-wmi.h
-@@ -57,6 +57,7 @@ struct quirk_entry {
- struct asus_wmi_driver {
- int brightness;
- int panel_power;
-+ int screenpad_brightness;
- int wlan_ctrl_by_user;
-
- const char *name;
-diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
-index 28234dc9fa6a..a2d94adb5c80 100644
---- a/include/linux/platform_data/x86/asus-wmi.h
-+++ b/include/linux/platform_data/x86/asus-wmi.h
-@@ -58,6 +58,10 @@
- #define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021
- #define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* ?? */
- #define ASUS_WMI_DEVID_LIGHTBAR 0x00050025
-+/* This can only be used to disable the screen, not re-enable */
-+#define ASUS_WMI_DEVID_SCREENPAD_POWER 0x00050031
-+/* Writing a brightness re-enables the screen if disabled */
-+#define ASUS_WMI_DEVID_SCREENPAD_LIGHT 0x00050032
- #define ASUS_WMI_DEVID_FAN_BOOST_MODE 0x00110018
- #define ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY 0x00120075
-
---
-2.40.1
-