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#ifndef __QEMU_VGA_H__
#define __QEMU_VGA_H__
/* This must be enabled for the MacOS X version of the timer otherwise
* we don't know if the call failed and don't back off to non-VBL ops
*/
#define USE_DSL_TIMER
/* Pseudo VBL timer duration in ms */
#define TIMER_DURATION 30
/* Enable use of the PCI IRQ as VBL using non-upstream QEMU VGA
* extensions
*/
#undef USE_PCI_IRQ
/* --- Qemu/Bochs special registers --- */
#define VBE_DISPI_IOPORT_INDEX 0x01CE
#define VBE_DISPI_IOPORT_DATA 0x01CF
#define VBE_DISPI_INDEX_ID 0x0
#define VBE_DISPI_INDEX_XRES 0x1
#define VBE_DISPI_INDEX_YRES 0x2
#define VBE_DISPI_INDEX_BPP 0x3
#define VBE_DISPI_INDEX_ENABLE 0x4
#define VBE_DISPI_INDEX_BANK 0x5
#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
#define VBE_DISPI_INDEX_X_OFFSET 0x8
#define VBE_DISPI_INDEX_Y_OFFSET 0x9
#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
#define VBE_DISPI_ID0 0xB0C0
#define VBE_DISPI_ID1 0xB0C1
#define VBE_DISPI_ID2 0xB0C2
#define VBE_DISPI_ID3 0xB0C3
#define VBE_DISPI_ID4 0xB0C4
#define VBE_DISPI_ID5 0xB0C5
#define VBE_DISPI_DISABLED 0x00
#define VBE_DISPI_ENABLED 0x01
#define VBE_DISPI_GETCAPS 0x02
#define VBE_DISPI_8BIT_DAC 0x20
#define VBE_DISPI_LFB_ENABLED 0x40
#define VBE_DISPI_NOCLEARMEM 0x80
/* --- Internal APIs */
extern OSStatus QemuVga_Init();
extern OSStatus QemuVga_Exit();
extern OSStatus QemuVga_Open();
extern OSStatus QemuVga_Close();
extern void QemuVga_EnableInterrupts(void);
extern void QemuVga_DisableInterrupts(void);
extern OSStatus QemuVga_SetDepth(UInt32 bpp);
extern OSStatus QemuVga_SetColorEntry(UInt32 index, RGBColor *color);
extern OSStatus QemuVga_GetColorEntry(UInt32 index, RGBColor *color);
extern OSStatus QemuVga_GetModePages(UInt32 index, UInt32 depth,
UInt32 *pageSize, UInt32 *pageCount);
extern OSStatus QemuVga_GetModeInfo(UInt32 index, UInt32 *width, UInt32 *height);
extern OSStatus QemuVga_SetMode(UInt32 modeIndex, UInt32 depth, UInt32 page);
extern OSStatus QemuVga_Blank(Boolean blank);
#endif
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