[people/ms/u-boot.git] / drivers / video / display-uclass.c

/*
 * Copyright 2014 Google Inc.
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#include <common.h>
#include <dm.h>
#include <display.h>
#include <edid.h>
#include <errno.h>

int display_read_edid(struct udevice *dev, u8 *buf, int buf_size)
{
	struct dm_display_ops *ops = display_get_ops(dev);

	if (!ops || !ops->read_edid)
		return -ENOSYS;
	return ops->read_edid(dev, buf, buf_size);
}

int display_enable(struct udevice *dev, int panel_bpp,
			const struct display_timing *timing)
{
	struct dm_display_ops *ops = display_get_ops(dev);

	if (!ops || !ops->enable)
		return -ENOSYS;
	return ops->enable(dev, panel_bpp, timing);
}

int display_read_timing(struct udevice *dev, struct display_timing *timing)
{
	struct dm_display_ops *ops = display_get_ops(dev);
	int panel_bits_per_colour;
	u8 buf[EDID_EXT_SIZE];
	int ret;

	if (ops && ops->read_timing)
		return ops->read_timing(dev, timing);

	if (!ops || !ops->read_edid)
		return -ENOSYS;
	ret = ops->read_edid(dev, buf, sizeof(buf));
	if (ret < 0)
		return ret;

	return edid_get_timing(buf, ret, timing, &panel_bits_per_colour);
}

UCLASS_DRIVER(display) = {
	.id		= UCLASS_DISPLAY,
	.name		= "display",
	.per_device_platdata_auto_alloc_size	= sizeof(struct display_plat),
};
Commit	Line	Data
2dcf1433 SG	1	/*
	2	* Copyright 2014 Google Inc.
	3	*
	4	* SPDX-License-Identifier: GPL-2.0+
	5	*/
	6
	7	#include <common.h>
	8	#include <dm.h>
	9	#include <display.h>
	10	#include <edid.h>
	11	#include <errno.h>
	12
	13	int display_read_edid(struct udevice dev, u8 buf, int buf_size)
	14	{
	15	struct dm_display_ops *ops = display_get_ops(dev);
	16
	17	if (!ops \|\| !ops->read_edid)
	18	return -ENOSYS;
	19	return ops->read_edid(dev, buf, buf_size);
	20	}
	21
	22	int display_enable(struct udevice *dev, int panel_bpp,
	23	const struct display_timing *timing)
	24	{
	25	struct dm_display_ops *ops = display_get_ops(dev);
	26
	27	if (!ops \|\| !ops->enable)
	28	return -ENOSYS;
	29	return ops->enable(dev, panel_bpp, timing);
	30	}
	31
	32	int display_read_timing(struct udevice dev, struct display_timing timing)
	33	{
	34	struct dm_display_ops *ops = display_get_ops(dev);
	35	int panel_bits_per_colour;
	36	u8 buf[EDID_EXT_SIZE];
	37	int ret;
	38
eab314f5 JC	39	if (ops && ops->read_timing)
	40	return ops->read_timing(dev, timing);
	41
2dcf1433 SG	42	if (!ops \|\| !ops->read_edid)
	43	return -ENOSYS;
	44	ret = ops->read_edid(dev, buf, sizeof(buf));
	45	if (ret < 0)
	46	return ret;
	47
	48	return edid_get_timing(buf, ret, timing, &panel_bits_per_colour);
	49	}
	50
	51	UCLASS_DRIVER(display) = {
	52	.id = UCLASS_DISPLAY,
	53	.name = "display",
	54	.per_device_platdata_auto_alloc_size = sizeof(struct display_plat),
	55	};