70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
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#ifndef HW_DISPLAY_BOCHS_VBE_H
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#define HW_DISPLAY_BOCHS_VBE_H
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/*
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* bochs vesa bios extension interface
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*/
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#define VBE_DISPI_MAX_XRES 16000
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#define VBE_DISPI_MAX_YRES 12000
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#define VBE_DISPI_MAX_BPP 32
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#define VBE_DISPI_INDEX_ID 0x0
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#define VBE_DISPI_INDEX_XRES 0x1
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#define VBE_DISPI_INDEX_YRES 0x2
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#define VBE_DISPI_INDEX_BPP 0x3
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#define VBE_DISPI_INDEX_ENABLE 0x4
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#define VBE_DISPI_INDEX_BANK 0x5
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#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
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#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
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#define VBE_DISPI_INDEX_X_OFFSET 0x8
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#define VBE_DISPI_INDEX_Y_OFFSET 0x9
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#define VBE_DISPI_INDEX_NB 0xa /* size of vbe_regs[] */
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#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa /* read-only, not in vbe_regs */
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/* VBE_DISPI_INDEX_ID */
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#define VBE_DISPI_ID0 0xB0C0
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#define VBE_DISPI_ID1 0xB0C1
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#define VBE_DISPI_ID2 0xB0C2
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#define VBE_DISPI_ID3 0xB0C3
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#define VBE_DISPI_ID4 0xB0C4
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#define VBE_DISPI_ID5 0xB0C5
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/* VBE_DISPI_INDEX_ENABLE */
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#define VBE_DISPI_DISABLED 0x00
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#define VBE_DISPI_ENABLED 0x01
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#define VBE_DISPI_GETCAPS 0x02
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#define VBE_DISPI_8BIT_DAC 0x20
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#define VBE_DISPI_LFB_ENABLED 0x40
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#define VBE_DISPI_NOCLEARMEM 0x80
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/* only used by isa-vga, pci vga devices use a memory bar */
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#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
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/*
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* qemu extension: mmio bar (region 2)
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*/
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#define PCI_VGA_MMIO_SIZE 0x1000
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/* vga register region */
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#define PCI_VGA_IOPORT_OFFSET 0x400
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#define PCI_VGA_IOPORT_SIZE (0x3e0 - 0x3c0)
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/* bochs vbe register region */
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#define PCI_VGA_BOCHS_OFFSET 0x500
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#define PCI_VGA_BOCHS_SIZE (0x0b * 2)
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/* qemu extension register region */
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#define PCI_VGA_QEXT_OFFSET 0x600
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#define PCI_VGA_QEXT_SIZE (2 * 4)
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/* qemu extension registers */
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#define PCI_VGA_QEXT_REG_SIZE (0 * 4)
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#define PCI_VGA_QEXT_REG_BYTEORDER (1 * 4)
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#define PCI_VGA_QEXT_LITTLE_ENDIAN 0x1e1e1e1e
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#define PCI_VGA_QEXT_BIG_ENDIAN 0xbebebebe
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#endif /* HW_DISPLAY_BOCHS_VBE_H */
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