6 #include <console/console.h>
7 #include <device/device.h>
8 #include <device/pci.h>
9 #include <device/pci_ids.h>
10 #include <device/pci_ops.h>
12 /* VGA init. We use the Bochs VESA VBE extensions */
13 #define VBE_DISPI_INDEX_ID 0x0
14 #define VBE_DISPI_INDEX_XRES 0x1
15 #define VBE_DISPI_INDEX_YRES 0x2
16 #define VBE_DISPI_INDEX_BPP 0x3
17 #define VBE_DISPI_INDEX_ENABLE 0x4
18 #define VBE_DISPI_INDEX_BANK 0x5
19 #define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
20 #define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
21 #define VBE_DISPI_INDEX_X_OFFSET 0x8
22 #define VBE_DISPI_INDEX_Y_OFFSET 0x9
23 #define VBE_DISPI_INDEX_NB 0xa
25 #define VBE_DISPI_ID0 0xB0C0
26 #define VBE_DISPI_ID1 0xB0C1
27 #define VBE_DISPI_ID2 0xB0C2
29 #define VBE_DISPI_DISABLED 0x00
30 #define VBE_DISPI_ENABLED 0x01
31 #define VBE_DISPI_LFB_ENABLED 0x40
32 #define VBE_DISPI_NOCLEARMEM 0x80
34 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
36 static void vbe_outw(int index, int val)
42 static void qemu_init(void)
44 int width=640, height=480, depth=8;
46 printk(BIOS_DEBUG, "Initializing VGA!\n");
48 vbe_outw(VBE_DISPI_INDEX_XRES, width);
49 vbe_outw(VBE_DISPI_INDEX_YRES, height);
50 vbe_outw(VBE_DISPI_INDEX_BPP, depth);
51 vbe_outw(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED);
52 outb(0x3c0, 0x20); /* disable blanking */
54 vga_fb_phys_addr = VBE_DISPI_LFB_PHYSICAL_ADDRESS;
56 vga_fb_height = height;
58 vga_fb_bpp = (depth + 7) >> 3;
59 vga_fb_linesize = width * vga_fb_bpp;
63 static struct device_operations qemu_graph_ops = {
64 .read_resources = pci_dev_read_resources,
65 .set_resources = pci_dev_set_resources,
66 .enable_resources = pci_dev_enable_resources,
71 static const struct pci_driver qemu_graph_driver __pci_driver = {
72 .ops = &qemu_graph_ops,