linux-toradex.git/include/linux/platform_data/x86/asus-wmi.h, branch v6.7

platform/x86: asus-wmi: disable USB0 hub on ROG Ally before suspend

2023-11-28T13:19:53+00:00

ASUS have worked around an issue in XInput where it doesn't support USB
selective suspend, which causes suspend issues in Windows. They worked
around this by adjusting the MCU firmware to disable the USB0 hub when
the screen is switched off during the Microsoft DSM suspend path in ACPI.

The issue we have with this however is one of timing - the call the tells
the MCU to this isn't able to complete before suspend is done so we call
this in a prepare() and add a small msleep() to ensure it is done. This
must be done before the screen is switched off to prevent a variety of
possible races.

Further to this the MCU powersave option must also be disabled as it can
cause a number of issues such as:
- unreliable resume connection of N-Key
- complete loss of N-Key if the power is plugged in while suspended
Disabling the powersave option prevents this.

Without this the MCU is unable to initialise itself correctly on resume.

Signed-off-by: "Luke D. Jones" 
Tested-by: Philip Mueller 
Reviewed-by: Hans de Goede 
Link: https://lore.kernel.org/r/20231126230521.125708-2-luke@ljones.dev
Signed-off-by: Ilpo Järvinen

platform/x86: asus-wmi: add support for ASUS screenpad

2023-09-12T08:18:07+00:00

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.

There are some small quirks with this device when considering only the
raw WMI methods:
1. The Off method can only switch the device off
2. Changing the brightness turns the device back on
3. To turn the device back on the brightness must be > 1
4. When the device is off the brightness can't be changed (so it is
   stored by the driver if device is off).
5. Booting with a value of 0 brightness (retained by bios) means the bios
   will set a value of >0 <15
6. When the device is off it is "unplugged"

asus_wmi sets the minimum brightness as 20 in general use, and 60 for
booting with values <= min.

The ACPI methods are used in a new backlight device named asus_screenpad.

Signed-off-by: Luke D. Jones 
Link: https://lore.kernel.org/r/20230830032237.42987-2-luke@ljones.dev
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede

platform/x86: asus-wmi: expose dGPU and CPU tunables for ROG

2023-07-12T15:17:44+00:00

Expose various CPU and dGPU tunables that are available on many ASUS
ROG laptops. The tunables shown in sysfs will vary depending on the CPU
and dGPU vendor.

All of these variables are write only and there is no easy way to find
what the defaults are. In general they seem to default to the max value
the vendor sets for the CPU and dGPU package - this is not the same as
the min/max writable value. Values written to these variables that are
beyond the capabilities of the CPU are ignored by the laptop.

Signed-off-by: Luke D. Jones 
Reviewed-by: Hans de Goede 
Link: https://lore.kernel.org/r/20230630053552.976579-9-luke@ljones.dev
Signed-off-by: Hans de Goede

platform/x86: asus-wmi: support setting mini-LED mode

2023-07-12T15:01:58+00:00

Support changing the mini-LED mode on some of the newer ASUS laptops.

Signed-off-by: Luke D. Jones 
Reviewed-by: Hans de Goede 
Link: https://lore.kernel.org/r/20230630053552.976579-8-luke@ljones.dev
Signed-off-by: Hans de Goede

platform/x86: asus-wmi: add WMI method to show if egpu connected

2023-07-12T15:01:49+00:00

Exposes the WMI method which tells if the eGPU is properly connected
on the devices that support it.

Signed-off-by: Luke D. Jones 
Reviewed-by: Hans de Goede 
Link: https://lore.kernel.org/r/20230630053552.976579-5-luke@ljones.dev
Signed-off-by: Hans de Goede

platform/x86: asus-wmi: support middle fan custom curves

2023-07-12T15:01:46+00:00

Adds support for fan curves defined for the middle fan which
is available on some ASUS ROG laptops.

Signed-off-by: Luke D. Jones 
Reviewed-by: Hans de Goede 
Link: https://lore.kernel.org/r/20230630053552.976579-4-luke@ljones.dev
Signed-off-by: Hans de Goede

platform/x86: asus-wmi: add support for showing middle fan RPM

2023-07-12T15:01:43+00:00

Some newer ASUS ROG laptops now have a middle/center fan in addition
to the CPU and GPU fans. This new fan typically blows across the
heatpipes and VRMs betweent eh CPU and GPU.

This commit exposes that fan to PWM control plus showing RPM.

Signed-off-by: Luke D. Jones 
Reviewed-by: Hans de Goede 
Link: https://lore.kernel.org/r/20230630053552.976579-3-luke@ljones.dev
Signed-off-by: Hans de Goede

platform/x86: asus-wmi: add support for showing charger mode

2023-07-12T15:01:31+00:00

Expose a WMI method in sysfs platform for showing which connected
charger the laptop is currently using.

Signed-off-by: Luke D. Jones 
Reviewed-by: Hans de Goede 
Link: https://lore.kernel.org/r/20230630053552.976579-2-luke@ljones.dev
Signed-off-by: Hans de Goede

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

2022-08-26T09:48:06+00:00

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 
Link: https://lore.kernel.org/r/20220825232251.345893-3-luke@ljones.dev
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede

platform/x86: asus-wmi: Implement TUF laptop keyboard LED modes

2022-08-26T09:44:29+00:00

Adds support for changing the laptop keyboard LED mode and colour.

The modes are visible effects such as static, rainbow, pulsing,
colour cycles.

These sysfs attributes are added to asus::kbd_backlight:
- kbd_rgb_mode
- kbd_rgb_mode_index

Signed-off-by: Luke D. Jones 
Link: https://lore.kernel.org/r/20220825232251.345893-2-luke@ljones.dev
Reviewed-by: Hans de Goede 
Signed-off-by: Hans de Goede