claymation / osxp

EFI boot loader for running Windows XP on Intel Macs, from the 2006 Windows On Mac hacker challenge

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osxp / OSXP.h
100644 69 lines (57 sloc) 2.153 kb
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/* EFI library includes */
#include <EfiBind.h>
#include <EfiTypes.h>
#include <EfiCommon.h>
#include <EfiApi.h>
#include <EfiDriverLib.h>
#include <EfiDevicePath.h>
 
/* Protocol headers */
#include EFI_PROTOCOL_DEFINITION (ConsoleControl)
#include EFI_PROTOCOL_DEFINITION (LoadedImage)
#include EFI_PROTOCOL_DEFINITION (DevicePath)
#include EFI_PROTOCOL_DEFINITION (BlockIO)
 
/* Utility functions */
static void       InitScreen();
static EFI_STATUS InstallMBR();
static void       ReadCD();
static void       InstallIVT();
 
UINT32		  peek32(UINT32 address);
void		  poke32(UINT32 address, UINT32 value);
UINT16		  peek16(UINT32 address);
void		  poke16(UINT32 address, UINT16 value);
UINT8		  peek8(UINT32 address);
void		  poke8(UINT32 address, UINT8 value);
 
void	  Set80x25();
void	  Set80x50();
 
/* Macros */
#ifdef __DEBUG__
#define Debug(...)	Print(__VA_ARGS__)
#define Pause(...)	{ int i; for (i = 0; i < 1000000000; i++); }
#else
#define Debug(...)
#define Pause(...)
#endif
 
#define HANG	{ for (;;); }
 
/* Globals */
extern EFI_BLOCK_IO_PROTOCOL   *BootDrive;
extern EFI_BLOCK_IO_PROTOCOL   *CD;
extern EFI_BLOCK_IO_PROTOCOL   *HD;
extern EFI_HANDLE 	       *gIH;
 
/* PCI, PCI Express, and i945 GMCH registers */
/* These are used to get/set PCI configuration */
#define PCI_CONFIG_ADDRESS	0x0cf8
#define PCI_CONFIG_DATA		0x0cfc
#define PCI_CONFIG_ENABLE	0x80000000
 
/* These are used to get the PCI Express configuration base address */
#define PCI_PCIEXBAR		0x00000048	// PCI Express base address
#define PCI_PCIEXBAR_MASK	0xFC000000	// Used to mask out address
 
/* These are various Bus 0/Device 0/Function 0 registers and their values */
#define PCI_GCC			0x52		// GMCH Graphics Control
#define PCI_GCC_DISABLE_IGD	0x02		// IGD VGA Disable
#define PCI_DEVEN		0x54		// Device enable
#define PCI_DEVEN_DISABLE_IGD	0x03		// Maybe 0x3 is good :)
#define PCI_LAC			0x97		// Legacy Access Control
#define PCI_LAC_DISABLE_MDA	0x00		// Monochrome (MDA) not present
 
/* These are various Bus 0/Device 1/Function 0 registers and their values */
#define PCI_BCTRL1		0x3E		// Bridge control
#define PCI_BCTRL1_VGA_ENABLE	0x0c		// Enables VGA and ISA