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/*
* Copyright (c) 2013 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <fdtdec.h>
#include <lcd.h>
#include <malloc.h>
#include <asm/sdl.h>
#include <asm/u-boot-sandbox.h>
DECLARE_GLOBAL_DATA_PTR;
enum {
/* Maximum LCD size we support */
LCD_MAX_WIDTH = 1366,
LCD_MAX_HEIGHT = 768,
LCD_MAX_LOG2_BPP = 4, /* 2^4 = 16 bpp */
};
vidinfo_t panel_info;
void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
{
}
void lcd_ctrl_init(void *lcdbase)
{
/*
* Allocate memory to keep BMP color conversion map. This is required
* for 8 bit BMPs only (hence 256 colors). If malloc fails - keep
* going, it is not even clear if displyaing the bitmap will be
* required on the way up.
*/
panel_info.cmap = malloc(256 * NBITS(panel_info.vl_bpix) / 8);
}
void lcd_enable(void)
{
if (sandbox_sdl_init_display(panel_info.vl_col, panel_info.vl_row,
panel_info.vl_bpix))
puts("LCD init failed\n");
}
int sandbox_lcd_sdl_early_init(void)
{
const void *blob = gd->fdt_blob;
int xres = LCD_MAX_WIDTH, yres = LCD_MAX_HEIGHT;
int node;
int ret = 0;
/*
* The code in common/lcd.c does not cope with not being able to
* set up a frame buffer. It will just happily keep writing to
* invalid memory. So here we make sure that at least some buffer
* is available even if it actually won't be displayed.
*/
node = fdtdec_next_compatible(blob, 0, COMPAT_SANDBOX_LCD_SDL);
if (node >= 0) {
xres = fdtdec_get_int(blob, node, "xres", LCD_MAX_WIDTH);
yres = fdtdec_get_int(blob, node, "yres", LCD_MAX_HEIGHT);
if (xres < 0 || xres > LCD_MAX_WIDTH) {
xres = LCD_MAX_WIDTH;
ret = -EINVAL;
}
if (yres < 0 || yres > LCD_MAX_HEIGHT) {
yres = LCD_MAX_HEIGHT;
ret = -EINVAL;
}
}
panel_info.vl_col = xres;
panel_info.vl_row = yres;
panel_info.vl_bpix = LCD_COLOR16;
return ret;
}
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