mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 10:43:06 +00:00
185f812c41
Sphinx expects Return: and not @return to indicate a return value.
find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2015 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*/
|
|
|
|
#ifndef __VIDEO_BRIDGE
|
|
#define __VIDEO_BRIDGE
|
|
|
|
#include <asm/gpio.h>
|
|
|
|
/**
|
|
* struct video_bridge_priv - uclass information for video bridges
|
|
*
|
|
* @sleep: GPIO to assert to power down the bridge
|
|
* @reset: GPIO to assert to reset the bridge
|
|
* @hotplug: Optional GPIO to check if bridge is connected
|
|
*/
|
|
struct video_bridge_priv {
|
|
struct gpio_desc sleep;
|
|
struct gpio_desc reset;
|
|
struct gpio_desc hotplug;
|
|
};
|
|
|
|
/**
|
|
* Operations for video bridges
|
|
*/
|
|
struct video_bridge_ops {
|
|
/**
|
|
* attach() - attach a video bridge
|
|
*
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int (*attach)(struct udevice *dev);
|
|
|
|
/**
|
|
* check_attached() - check if a bridge is correctly attached
|
|
*
|
|
* This method is optional - if not provided then the hotplug GPIO
|
|
* will be checked instead.
|
|
*
|
|
* @dev: Device to check
|
|
* @return 0 if attached, -EENOTCONN if not, or other -ve error
|
|
*/
|
|
int (*check_attached)(struct udevice *dev);
|
|
|
|
/**
|
|
* set_backlight() - Set the backlight brightness
|
|
*
|
|
* @dev: device to adjust
|
|
* @percent: brightness percentage (0=off, 100=full brightness)
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int (*set_backlight)(struct udevice *dev, int percent);
|
|
|
|
/**
|
|
* read_edid() - Read information from EDID
|
|
*
|
|
* @dev: Device to read from
|
|
* @buf: Buffer to read into
|
|
* @buf_size: Buffer size
|
|
* @return number of bytes read, <=0 for error
|
|
*/
|
|
int (*read_edid)(struct udevice *dev, u8 *buf, int buf_size);
|
|
};
|
|
|
|
#define video_bridge_get_ops(dev) \
|
|
((struct video_bridge_ops *)(dev)->driver->ops)
|
|
|
|
/**
|
|
* video_bridge_attach() - attach a video bridge
|
|
*
|
|
* Return: 0 if OK, -ve on error
|
|
*/
|
|
int video_bridge_attach(struct udevice *dev);
|
|
|
|
/**
|
|
* video_bridge_set_backlight() - Set the backlight brightness
|
|
*
|
|
* @percent: brightness percentage (0=off, 100=full brightness)
|
|
* Return: 0 if OK, -ve on error
|
|
*/
|
|
int video_bridge_set_backlight(struct udevice *dev, int percent);
|
|
|
|
/**
|
|
* video_bridge_set_active() - take the bridge in/out of reset/powerdown
|
|
*
|
|
* @dev: Device to adjust
|
|
* @active: true to power up and reset, false to power down
|
|
*/
|
|
int video_bridge_set_active(struct udevice *dev, bool active);
|
|
|
|
/**
|
|
* check_attached() - check if a bridge is correctly attached
|
|
*
|
|
* @dev: Device to check
|
|
* Return: 0 if attached, -EENOTCONN if not, or other -ve error
|
|
*/
|
|
int video_bridge_check_attached(struct udevice *dev);
|
|
|
|
/**
|
|
* video_bridge_read_edid() - Read information from EDID
|
|
*
|
|
* @dev: Device to read from
|
|
* @buf: Buffer to read into
|
|
* @buf_size: Buffer size
|
|
* Return: number of bytes read, <=0 for error
|
|
*/
|
|
int video_bridge_read_edid(struct udevice *dev, u8 *buf, int buf_size);
|
|
|
|
#endif
|