]> git.kernelconcepts.de Git - karo-tx-uboot.git/blob - drivers/video/vesa_fb.c
update to 2015.04-rc1
[karo-tx-uboot.git] / drivers / video / vesa_fb.c
1 /*
2  *
3  * Vesa frame buffer driver for x86
4  *
5  * Copyright (C) 2014 Google, Inc
6  *
7  * SPDX-License-Identifier:     GPL-2.0+
8  */
9
10 #include <common.h>
11 #include <pci_rom.h>
12 #include <video_fb.h>
13 #include <vbe.h>
14
15 /*
16  * The Graphic Device
17  */
18 GraphicDevice ctfb;
19
20 /* Devices to allow - only the last one works fully */
21 struct pci_device_id vesa_video_ids[] = {
22         { .vendor = 0x102b, .device = 0x0525 },
23         { .vendor = 0x1002, .device = 0x5159 },
24         { .vendor = 0x1002, .device = 0x4752 },
25         { .vendor = 0x1002, .device = 0x5452 },
26         {},
27 };
28
29 void *video_hw_init(void)
30 {
31         GraphicDevice *gdev = &ctfb;
32         int bits_per_pixel;
33         pci_dev_t dev;
34         int ret;
35
36         printf("Video: ");
37         if (vbe_get_video_info(gdev)) {
38                 /* TODO: Should we look these up by class? */
39                 dev = pci_find_devices(vesa_video_ids, 0);
40                 if (dev == -1) {
41                         printf("no card detected\n");
42                         return NULL;
43                 }
44                 printf("bdf %x\n", dev);
45                 ret = pci_run_vga_bios(dev, NULL, true);
46                 if (ret) {
47                         printf("failed to run video BIOS: %d\n", ret);
48                         return NULL;
49                 }
50         }
51
52         if (vbe_get_video_info(gdev)) {
53                 printf("No video mode configured\n");
54                 return NULL;
55         }
56
57         bits_per_pixel = gdev->gdfBytesPP * 8;
58         sprintf(gdev->modeIdent, "%dx%dx%d", gdev->winSizeX, gdev->winSizeY,
59                 bits_per_pixel);
60         printf("%s\n", gdev->modeIdent);
61         debug("Framex buffer at %x\n", gdev->pciBase);
62
63         return (void *)gdev;
64 }