mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-26 13:03:40 +00:00
eab314f590
The current display class only allow to get timing from edid. So add a operation to get timing directly from driver. In driver, I will use fdtdec_decode_display_timing to get timing. Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com> Acked-by: Simon Glass <sjg@chromium.org>
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/*
|
|
* Copyright 2014 Google Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef _DISPLAY_H
|
|
#define _DISPLAY_H
|
|
|
|
struct udevice;
|
|
struct display_timing;
|
|
|
|
/**
|
|
* Display uclass platform data for each device
|
|
*
|
|
* @source_id: ID for the source of the display data, typically a video
|
|
* controller
|
|
* @src_dev: Source device providing the video
|
|
*/
|
|
struct display_plat {
|
|
int source_id;
|
|
struct udevice *src_dev;
|
|
};
|
|
|
|
/**
|
|
* display_read_timing() - Read timing information
|
|
*
|
|
* @dev: Device to read from
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int display_read_timing(struct udevice *dev, struct display_timing *timing);
|
|
|
|
/**
|
|
* display_port_enable() - Enable a display port device
|
|
*
|
|
* @dev: Device to enable
|
|
* @panel_bpp: Number of bits per pixel for panel
|
|
* @timing: Display timings
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int display_enable(struct udevice *dev, int panel_bpp,
|
|
const struct display_timing *timing);
|
|
|
|
struct dm_display_ops {
|
|
/**
|
|
* read_timing() - Read information directly
|
|
*
|
|
* @dev: Device to read from
|
|
* @timing: Display timings
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int (*read_timing)(struct udevice *dev, struct display_timing *timing);
|
|
|
|
/**
|
|
* read_edid() - Read information from EDID
|
|
*
|
|
* @dev: Device to read from
|
|
* @buf: Buffer to read into (should be EDID_SIZE bytes)
|
|
* @buf_size: Buffer size (should be EDID_SIZE)
|
|
* @return number of bytes read, <=0 for error
|
|
*/
|
|
int (*read_edid)(struct udevice *dev, u8 *buf, int buf_size);
|
|
|
|
/**
|
|
* enable() - Enable the display port device
|
|
*
|
|
* @dev: Device to enable
|
|
* @panel_bpp: Number of bits per pixel for panel
|
|
* @timing: Display timings
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int (*enable)(struct udevice *dev, int panel_bpp,
|
|
const struct display_timing *timing);
|
|
};
|
|
|
|
#define display_get_ops(dev) ((struct dm_display_ops *)(dev)->driver->ops)
|
|
|
|
#endif
|