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

/*
 * VESA frame buffer driver
 *
 * Copyright (C) 2014 Google, Inc
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <pci_rom.h>
#include <video_fb.h>
#include <vbe.h>

/*
 * The Graphic Device
 */
GraphicDevice ctfb;

void *video_hw_init(void)
{
	GraphicDevice *gdev = &ctfb;
	struct udevice *dev;
	int bits_per_pixel;
	int ret;

	printf("Video: ");
	if (!ll_boot_init()) {
		/*
		 * If we are running from EFI or coreboot, this driver can't
		 * work.
		 */
		printf("Not available (previous bootloader prevents it)\n");
		return NULL;
	}
	if (vbe_get_video_info(gdev)) {
		ret = dm_pci_find_class(PCI_CLASS_DISPLAY_VGA << 8, 0, &dev);
		if (ret) {
			printf("no card detected\n");
			return NULL;
		}
		bootstage_start(BOOTSTAGE_ID_ACCUM_LCD, "vesa display");
		ret = dm_pci_run_vga_bios(dev, NULL, PCI_ROM_USE_NATIVE |
					  PCI_ROM_ALLOW_FALLBACK);
		bootstage_accum(BOOTSTAGE_ID_ACCUM_LCD);
		if (ret) {
			printf("failed to run video BIOS: %d\n", ret);
			return NULL;
		}
	}

	if (vbe_get_video_info(gdev)) {
		printf("No video mode configured\n");
		return NULL;
	}

	bits_per_pixel = gdev->gdfBytesPP * 8;
	sprintf(gdev->modeIdent, "%dx%dx%d", gdev->winSizeX, gdev->winSizeY,
		bits_per_pixel);
	printf("%s\n", gdev->modeIdent);
	debug("Frame buffer at %x\n", gdev->pciBase);

	return (void *)gdev;
}
Commit	Line	Data
6b1ba984	1	/*
b018a8c7	2	* VESA frame buffer driver
6b1ba984 SG	3	*
	4	* Copyright (C) 2014 Google, Inc
	5	*
	6	* SPDX-License-Identifier: GPL-2.0+
	7	*/
	8
	9	#include <common.h>
	10	#include <pci_rom.h>
	11	#include <video_fb.h>
	12	#include <vbe.h>
	13
	14	/*
	15	* The Graphic Device
	16	*/
	17	GraphicDevice ctfb;
	18
6b1ba984 SG	19	void *video_hw_init(void)
	20	{
	21	GraphicDevice *gdev = &ctfb;
3f4e1e8e	22	struct udevice *dev;
6b1ba984	23	int bits_per_pixel;
6b1ba984 SG	24	int ret;
	25
	26	printf("Video: ");
ad11dbff SG	27	if (!ll_boot_init()) {
	28	/*
	29	* If we are running from EFI or coreboot, this driver can't
	30	* work.
	31	*/
	32	printf("Not available (previous bootloader prevents it)\n");
	33	return NULL;
	34	}
6b1ba984	35	if (vbe_get_video_info(gdev)) {
3f4e1e8e SG	36	ret = dm_pci_find_class(PCI_CLASS_DISPLAY_VGA << 8, 0, &dev);
3f4e1e8e SG	37	if (ret) {
6b1ba984 SG	38	printf("no card detected\n");
	39	return NULL;
	40	}
ef565a53	41	bootstage_start(BOOTSTAGE_ID_ACCUM_LCD, "vesa display");
3f4e1e8e SG	42	ret = dm_pci_run_vga_bios(dev, NULL, PCI_ROM_USE_NATIVE \|
3f4e1e8e SG	43	PCI_ROM_ALLOW_FALLBACK);
ef565a53	44	bootstage_accum(BOOTSTAGE_ID_ACCUM_LCD);
6b1ba984 SG	45	if (ret) {
	46	printf("failed to run video BIOS: %d\n", ret);
	47	return NULL;
	48	}
	49	}
	50
	51	if (vbe_get_video_info(gdev)) {
	52	printf("No video mode configured\n");
	53	return NULL;
	54	}
	55
	56	bits_per_pixel = gdev->gdfBytesPP * 8;
	57	sprintf(gdev->modeIdent, "%dx%dx%d", gdev->winSizeX, gdev->winSizeY,
	58	bits_per_pixel);
	59	printf("%s\n", gdev->modeIdent);
bc17d8f4	60	debug("Frame buffer at %x\n", gdev->pciBase);
6b1ba984 SG	61
	62	return (void *)gdev;
	63	}