xref: /openbmc/qemu/include/hw/display/bochs-vbe.h (revision 05caa062)
1 #ifndef HW_DISPLAY_BOCHS_VBE_H
2 #define HW_DISPLAY_BOCHS_VBE_H
3 
4 /*
5  * bochs vesa bios extension interface
6  */
7 
8 #define VBE_DISPI_MAX_XRES              16000
9 #define VBE_DISPI_MAX_YRES              12000
10 #define VBE_DISPI_MAX_BPP               32
11 
12 #define VBE_DISPI_INDEX_ID              0x0
13 #define VBE_DISPI_INDEX_XRES            0x1
14 #define VBE_DISPI_INDEX_YRES            0x2
15 #define VBE_DISPI_INDEX_BPP             0x3
16 #define VBE_DISPI_INDEX_ENABLE          0x4
17 #define VBE_DISPI_INDEX_BANK            0x5
18 #define VBE_DISPI_INDEX_VIRT_WIDTH      0x6
19 #define VBE_DISPI_INDEX_VIRT_HEIGHT     0x7
20 #define VBE_DISPI_INDEX_X_OFFSET        0x8
21 #define VBE_DISPI_INDEX_Y_OFFSET        0x9
22 #define VBE_DISPI_INDEX_NB              0xa /* size of vbe_regs[] */
23 #define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa /* read-only, not in vbe_regs */
24 
25 /* VBE_DISPI_INDEX_ID */
26 #define VBE_DISPI_ID0                   0xB0C0
27 #define VBE_DISPI_ID1                   0xB0C1
28 #define VBE_DISPI_ID2                   0xB0C2
29 #define VBE_DISPI_ID3                   0xB0C3
30 #define VBE_DISPI_ID4                   0xB0C4
31 #define VBE_DISPI_ID5                   0xB0C5
32 
33 /* VBE_DISPI_INDEX_ENABLE */
34 #define VBE_DISPI_DISABLED              0x00
35 #define VBE_DISPI_ENABLED               0x01
36 #define VBE_DISPI_GETCAPS               0x02
37 #define VBE_DISPI_8BIT_DAC              0x20
38 #define VBE_DISPI_LFB_ENABLED           0x40
39 #define VBE_DISPI_NOCLEARMEM            0x80
40 
41 /* only used by isa-vga, pci vga devices use a memory bar */
42 #define VBE_DISPI_LFB_PHYSICAL_ADDRESS  0xE0000000
43 
44 
45 /*
46  * qemu extension: mmio bar (region 2)
47  */
48 
49 #define PCI_VGA_MMIO_SIZE     0x1000
50 
51 /* vga register region */
52 #define PCI_VGA_IOPORT_OFFSET 0x400
53 #define PCI_VGA_IOPORT_SIZE   (0x3e0 - 0x3c0)
54 
55 /* bochs vbe register region */
56 #define PCI_VGA_BOCHS_OFFSET  0x500
57 #define PCI_VGA_BOCHS_SIZE    (0x0b * 2)
58 
59 /* qemu extension register region */
60 #define PCI_VGA_QEXT_OFFSET   0x600
61 #define PCI_VGA_QEXT_SIZE     (2 * 4)
62 
63 /* qemu extension registers */
64 #define PCI_VGA_QEXT_REG_SIZE         (0 * 4)
65 #define PCI_VGA_QEXT_REG_BYTEORDER    (1 * 4)
66 #define  PCI_VGA_QEXT_LITTLE_ENDIAN   0x1e1e1e1e
67 #define  PCI_VGA_QEXT_BIG_ENDIAN      0xbebebebe
68 
69 #endif /* HW_DISPLAY_BOCHS_VBE_H */
70