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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
*/
#include <common.h>
#include <dm.h>
#include <init.h>
#include <vesa.h>
#include <video.h>
#include <asm/cb_sysinfo.h>
static int save_vesa_mode(struct cb_framebuffer *fb,
struct vesa_mode_info *vesa)
{
/*
* If there is no framebuffer structure, bail out and keep
* running on the serial console.
*/
if (!fb)
return log_msg_ret("save", -ENXIO);
vesa->x_resolution = fb->x_resolution;
vesa->y_resolution = fb->y_resolution;
vesa->bits_per_pixel = fb->bits_per_pixel;
vesa->bytes_per_scanline = fb->bytes_per_line;
vesa->phys_base_ptr = fb->physical_address;
vesa->red_mask_size = fb->red_mask_size;
vesa->red_mask_pos = fb->red_mask_pos;
vesa->green_mask_size = fb->green_mask_size;
vesa->green_mask_pos = fb->green_mask_pos;
vesa->blue_mask_size = fb->blue_mask_size;
vesa->blue_mask_pos = fb->blue_mask_pos;
vesa->reserved_mask_size = fb->reserved_mask_size;
vesa->reserved_mask_pos = fb->reserved_mask_pos;
return 0;
}
static int coreboot_video_probe(struct udevice *dev)
{
struct video_uc_plat *plat = dev_get_uclass_plat(dev);
struct video_priv *uc_priv = dev_get_uclass_priv(dev);
struct cb_framebuffer *fb = lib_sysinfo.framebuffer;
struct vesa_mode_info *vesa = &mode_info.vesa;
int ret;
if (ll_boot_init())
return log_msg_ret("ll", -ENODEV);
printf("Video: ");
/* Initialize vesa_mode_info structure */
ret = save_vesa_mode(fb, vesa);
if (ret) {
ret = log_msg_ret("save", ret);
goto err;
}
ret = vesa_setup_video_priv(vesa, vesa->phys_base_ptr, uc_priv, plat);
if (ret) {
ret = log_msg_ret("setup", ret);
goto err;
}
printf("%dx%dx%d\n", uc_priv->xsize, uc_priv->ysize,
vesa->bits_per_pixel);
return 0;
err:
printf("No video mode configured in coreboot (err=%d)\n", ret);
return ret;
}
static int coreboot_video_bind(struct udevice *dev)
{
struct video_uc_plat *uc_plat = dev_get_uclass_plat(dev);
/* Set the maximum supported resolution */
uc_plat->size = 4096 * 2160 * 4;
log_debug("%s: Frame buffer size %x\n", __func__, uc_plat->size);
return 0;
}
static const struct udevice_id coreboot_video_ids[] = {
{ .compatible = "coreboot-fb" },
{ }
};
U_BOOT_DRIVER(coreboot_video) = {
.name = "coreboot_video",
.id = UCLASS_VIDEO,
.of_match = coreboot_video_ids,
.bind = coreboot_video_bind,
.probe = coreboot_video_probe,
};
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