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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2018
* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
*/
#include <common.h>
#include <display.h>
#include <dm.h>
#include <malloc.h>
#include <video_osd.h>
#include "sandbox_osd.h"
struct sandbox_osd_priv {
uint width;
uint height;
u16 *buf;
};
static const struct udevice_id sandbox_osd_ids[] = {
{ .compatible = "sandbox,sandbox_osd" },
{ }
};
inline u16 make_memval(u8 chr, u8 color)
{
return chr * 0x100 + color;
}
int sandbox_osd_get_info(struct udevice *dev, struct video_osd_info *info)
{
struct sandbox_osd_priv *priv = dev_get_priv(dev);
info->width = priv->width;
info->height = priv->height;
info->major_version = 1;
info->minor_version = 0;
return 0;
}
int sandbox_osd_set_mem(struct udevice *dev, uint col, uint row, u8 *buf,
size_t buflen, uint count)
{
struct sandbox_osd_priv *priv = dev_get_priv(dev);
int pos;
u8 *mem = (u8 *)priv->buf;
int i;
pos = 2 * (row * priv->width + col);
if (pos >= 2 * (priv->width * priv->height))
return -EINVAL;
for (i = 0; i < count; i++)
memcpy(mem + pos + (i * buflen), buf, buflen);
return 0;
}
int _sandbox_osd_set_size(struct udevice *dev, uint col, uint row)
{
struct sandbox_osd_priv *priv = dev_get_priv(dev);
int i;
uint size;
priv->width = col;
priv->height = row;
size = priv->width * priv->height;
if (!priv->buf)
priv->buf = calloc(size, sizeof(u16));
else
priv->buf = realloc(priv->buf, size * sizeof(u16));
if (!priv->buf)
return -ENOMEM;
/* Fill OSD with black spaces */
for (i = 0; i < size; i++)
priv->buf[i] = make_memval(' ', 'k');
return 0;
}
int sandbox_osd_set_size(struct udevice *dev, uint col, uint row)
{
return _sandbox_osd_set_size(dev, col, row);
}
int sandbox_osd_print(struct udevice *dev, uint col, uint row, ulong color,
char *text)
{
struct sandbox_osd_priv *priv = dev_get_priv(dev);
char cval;
char *p;
int pos;
if (col >= priv->width || row >= priv->height)
return -EINVAL;
switch (color) {
case COLOR_BLACK:
cval = 'k';
break;
case COLOR_WHITE:
cval = 'w';
break;
case COLOR_RED:
cval = 'r';
break;
case COLOR_GREEN:
cval = 'g';
break;
case COLOR_BLUE:
cval = 'b';
break;
default:
return -EINVAL;
}
p = text;
pos = row * priv->width + col;
while (*p)
priv->buf[pos++] = make_memval(*(p++), cval);
return 0;
}
int sandbox_osd_get_mem(struct udevice *dev, u8 *buf, size_t buflen)
{
struct sandbox_osd_priv *priv = dev_get_priv(dev);
uint memsize = 2 * (priv->width * priv->height);
if (buflen < memsize)
return -EINVAL;
memcpy(buf, priv->buf, memsize);
return 0;
}
static const struct video_osd_ops sandbox_osd_ops = {
.get_info = sandbox_osd_get_info,
.set_mem = sandbox_osd_set_mem,
.set_size = sandbox_osd_set_size,
.print = sandbox_osd_print,
};
int sandbox_osd_probe(struct udevice *dev)
{
return _sandbox_osd_set_size(dev, 10, 10);
}
U_BOOT_DRIVER(sandbox_osd_drv) = {
.name = "sandbox_osd_drv",
.id = UCLASS_VIDEO_OSD,
.ops = &sandbox_osd_ops,
.of_match = sandbox_osd_ids,
.probe = sandbox_osd_probe,
.priv_auto = sizeof(struct sandbox_osd_priv),
};
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