platform/x86: nvidia-wmi-ec-backlight: Move fw interface definitions to a header (v2)

Move the WMI interface definitions to a header, so that the definitions
can be shared with drivers/acpi/video_detect.c .

Changes in v2:
- Add missing Nvidia copyright header
- Move WMI_BRIGHTNESS_GUID to nvidia-wmi-ec-backlight.h as well

Suggested-by: Daniel Dadap <ddadap@nvidia.com>
Reviewed-by: Daniel Dadap <ddadap@nvidia.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Hans de Goede 2022-08-17 14:03:32 +02:00
parent 5e0e33f92e
commit 3db2aeb121
3 changed files with 78 additions and 67 deletions

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@ -14526,6 +14526,7 @@ M: Daniel Dadap <ddadap@nvidia.com>
L: platform-driver-x86@vger.kernel.org
S: Supported
F: drivers/platform/x86/nvidia-wmi-ec-backlight.c
F: include/linux/platform_data/x86/nvidia-wmi-ec-backlight.h
NVM EXPRESS DRIVER
M: Keith Busch <kbusch@kernel.org>

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@ -7,74 +7,10 @@
#include <linux/backlight.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_data/x86/nvidia-wmi-ec-backlight.h>
#include <linux/types.h>
#include <linux/wmi.h>
/**
* enum wmi_brightness_method - WMI method IDs
* @WMI_BRIGHTNESS_METHOD_LEVEL: Get/Set EC brightness level status
* @WMI_BRIGHTNESS_METHOD_SOURCE: Get/Set EC Brightness Source
*/
enum wmi_brightness_method {
WMI_BRIGHTNESS_METHOD_LEVEL = 1,
WMI_BRIGHTNESS_METHOD_SOURCE = 2,
WMI_BRIGHTNESS_METHOD_MAX
};
/**
* enum wmi_brightness_mode - Operation mode for WMI-wrapped method
* @WMI_BRIGHTNESS_MODE_GET: Get the current brightness level/source.
* @WMI_BRIGHTNESS_MODE_SET: Set the brightness level.
* @WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL: Get the maximum brightness level. This
* is only valid when the WMI method is
* %WMI_BRIGHTNESS_METHOD_LEVEL.
*/
enum wmi_brightness_mode {
WMI_BRIGHTNESS_MODE_GET = 0,
WMI_BRIGHTNESS_MODE_SET = 1,
WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL = 2,
WMI_BRIGHTNESS_MODE_MAX
};
/**
* enum wmi_brightness_source - Backlight brightness control source selection
* @WMI_BRIGHTNESS_SOURCE_GPU: Backlight brightness is controlled by the GPU.
* @WMI_BRIGHTNESS_SOURCE_EC: Backlight brightness is controlled by the
* system's Embedded Controller (EC).
* @WMI_BRIGHTNESS_SOURCE_AUX: Backlight brightness is controlled over the
* DisplayPort AUX channel.
*/
enum wmi_brightness_source {
WMI_BRIGHTNESS_SOURCE_GPU = 1,
WMI_BRIGHTNESS_SOURCE_EC = 2,
WMI_BRIGHTNESS_SOURCE_AUX = 3,
WMI_BRIGHTNESS_SOURCE_MAX
};
/**
* struct wmi_brightness_args - arguments for the WMI-wrapped ACPI method
* @mode: Pass in an &enum wmi_brightness_mode value to select between
* getting or setting a value.
* @val: In parameter for value to set when using %WMI_BRIGHTNESS_MODE_SET
* mode. Not used in conjunction with %WMI_BRIGHTNESS_MODE_GET or
* %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL mode.
* @ret: Out parameter returning retrieved value when operating in
* %WMI_BRIGHTNESS_MODE_GET or %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL
* mode. Not used in %WMI_BRIGHTNESS_MODE_SET mode.
* @ignored: Padding; not used. The ACPI method expects a 24 byte params struct.
*
* This is the parameters structure for the WmiBrightnessNotify ACPI method as
* wrapped by WMI. The value passed in to @val or returned by @ret will be a
* brightness value when the WMI method ID is %WMI_BRIGHTNESS_METHOD_LEVEL, or
* an &enum wmi_brightness_source value with %WMI_BRIGHTNESS_METHOD_SOURCE.
*/
struct wmi_brightness_args {
u32 mode;
u32 val;
u32 ret;
u32 ignored[3];
};
/**
* wmi_brightness_notify() - helper function for calling WMI-wrapped ACPI method
* @w: Pointer to the struct wmi_device identified by %WMI_BRIGHTNESS_GUID
@ -191,8 +127,6 @@ static int nvidia_wmi_ec_backlight_probe(struct wmi_device *wdev, const void *ct
return PTR_ERR_OR_ZERO(bdev);
}
#define WMI_BRIGHTNESS_GUID "603E9613-EF25-4338-A3D0-C46177516DB7"
static const struct wmi_device_id nvidia_wmi_ec_backlight_id_table[] = {
{ .guid_string = WMI_BRIGHTNESS_GUID },
{ }

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@ -0,0 +1,76 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
*/
#ifndef __PLATFORM_DATA_X86_NVIDIA_WMI_EC_BACKLIGHT_H
#define __PLATFORM_DATA_X86_NVIDIA_WMI_EC_BACKLIGHT_H
#define WMI_BRIGHTNESS_GUID "603E9613-EF25-4338-A3D0-C46177516DB7"
/**
* enum wmi_brightness_method - WMI method IDs
* @WMI_BRIGHTNESS_METHOD_LEVEL: Get/Set EC brightness level status
* @WMI_BRIGHTNESS_METHOD_SOURCE: Get/Set EC Brightness Source
*/
enum wmi_brightness_method {
WMI_BRIGHTNESS_METHOD_LEVEL = 1,
WMI_BRIGHTNESS_METHOD_SOURCE = 2,
WMI_BRIGHTNESS_METHOD_MAX
};
/**
* enum wmi_brightness_mode - Operation mode for WMI-wrapped method
* @WMI_BRIGHTNESS_MODE_GET: Get the current brightness level/source.
* @WMI_BRIGHTNESS_MODE_SET: Set the brightness level.
* @WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL: Get the maximum brightness level. This
* is only valid when the WMI method is
* %WMI_BRIGHTNESS_METHOD_LEVEL.
*/
enum wmi_brightness_mode {
WMI_BRIGHTNESS_MODE_GET = 0,
WMI_BRIGHTNESS_MODE_SET = 1,
WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL = 2,
WMI_BRIGHTNESS_MODE_MAX
};
/**
* enum wmi_brightness_source - Backlight brightness control source selection
* @WMI_BRIGHTNESS_SOURCE_GPU: Backlight brightness is controlled by the GPU.
* @WMI_BRIGHTNESS_SOURCE_EC: Backlight brightness is controlled by the
* system's Embedded Controller (EC).
* @WMI_BRIGHTNESS_SOURCE_AUX: Backlight brightness is controlled over the
* DisplayPort AUX channel.
*/
enum wmi_brightness_source {
WMI_BRIGHTNESS_SOURCE_GPU = 1,
WMI_BRIGHTNESS_SOURCE_EC = 2,
WMI_BRIGHTNESS_SOURCE_AUX = 3,
WMI_BRIGHTNESS_SOURCE_MAX
};
/**
* struct wmi_brightness_args - arguments for the WMI-wrapped ACPI method
* @mode: Pass in an &enum wmi_brightness_mode value to select between
* getting or setting a value.
* @val: In parameter for value to set when using %WMI_BRIGHTNESS_MODE_SET
* mode. Not used in conjunction with %WMI_BRIGHTNESS_MODE_GET or
* %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL mode.
* @ret: Out parameter returning retrieved value when operating in
* %WMI_BRIGHTNESS_MODE_GET or %WMI_BRIGHTNESS_MODE_GET_MAX_LEVEL
* mode. Not used in %WMI_BRIGHTNESS_MODE_SET mode.
* @ignored: Padding; not used. The ACPI method expects a 24 byte params struct.
*
* This is the parameters structure for the WmiBrightnessNotify ACPI method as
* wrapped by WMI. The value passed in to @val or returned by @ret will be a
* brightness value when the WMI method ID is %WMI_BRIGHTNESS_METHOD_LEVEL, or
* an &enum wmi_brightness_source value with %WMI_BRIGHTNESS_METHOD_SOURCE.
*/
struct wmi_brightness_args {
u32 mode;
u32 val;
u32 ret;
u32 ignored[3];
};
#endif