xboxdisk.c File Reference

#include <freeldr.h>
#include <debug.h>

Go to the source code of this file.

Data Structures
struct	PIDE_DRIVE_IDENTIFY
Defines
#define	NDEBUG
#define	XBOX_IDE_COMMAND_PORT   0x1f0
#define	XBOX_IDE_CONTROL_PORT   0x170
#define	XBOX_SIGNATURE_SECTOR   3
#define	XBOX_SIGNATURE   ('B' | ('R' << 8) | ('F' << 16) | ('R' << 24))
#define	IDE_SECTOR_BUF_SZ   512
#define	IDE_MAX_POLL_RETRIES   100000
#define	IDE_MAX_BUSY_RETRIES   50000
#define	IDE_REG_ALT_STATUS   0x0000
#define	IDE_REG_DEV_CNTRL   0x0000 /* device control register */
#define	IDE_DC_SRST   0x04 /* drive reset (both drives) */
#define	IDE_DC_nIEN   0x02 /* IRQ enable (active low) */
#define	IDE_REG_DRV_ADDR   0x0001
#define	IDE_REG_DATA_PORT   0x0000
#define	IDE_REG_ERROR   0x0001 /* error register */
#define	IDE_ER_AMNF   0x01 /* addr mark not found */
#define	IDE_ER_TK0NF   0x02 /* track 0 not found */
#define	IDE_ER_ABRT   0x04 /* command aborted */
#define	IDE_ER_MCR   0x08 /* media change requested */
#define	IDE_ER_IDNF   0x10 /* ID not found */
#define	IDE_ER_MC   0x20 /* Media changed */
#define	IDE_ER_UNC   0x40 /* Uncorrectable data error */
#define	IDE_REG_PRECOMP   0x0001
#define	IDE_REG_SECTOR_CNT   0x0002
#define	IDE_REG_SECTOR_NUM   0x0003
#define	IDE_REG_CYL_LOW   0x0004
#define	IDE_REG_CYL_HIGH   0x0005
#define	IDE_REG_DRV_HEAD   0x0006
#define	IDE_DH_FIXED   0xA0
#define	IDE_DH_LBA   0x40
#define	IDE_DH_HDMASK   0x0F
#define	IDE_DH_DRV0   0x00
#define	IDE_DH_DRV1   0x10
#define	IDE_REG_STATUS   0x0007
#define	IDE_SR_BUSY   0x80
#define	IDE_SR_DRDY   0x40
#define	IDE_SR_WERR   0x20
#define	IDE_SR_DRQ   0x08
#define	IDE_SR_ERR   0x01
#define	IDE_REG_COMMAND   0x0007
#define	IDE_CMD_RESET   0x08
#define	IDE_CMD_READ   0x20
#define	IDE_CMD_READ_RETRY   0x21
#define	IDE_CMD_WRITE   0x30
#define	IDE_CMD_WRITE_RETRY   0x31
#define	IDE_CMD_PACKET   0xA0
#define	IDE_CMD_READ_MULTIPLE   0xC4
#define	IDE_CMD_WRITE_MULTIPLE   0xC5
#define	IDE_CMD_READ_DMA   0xC8
#define	IDE_CMD_WRITE_DMA   0xCA
#define	IDE_CMD_FLUSH_CACHE   0xE7
#define	IDE_CMD_FLUSH_CACHE_EXT   0xEA
#define	IDE_CMD_IDENT_ATA_DRV   0xEC
#define	IDE_CMD_IDENT_ATAPI_DRV   0xA1
#define	IDE_CMD_GET_MEDIA_STATUS   0xDA
#define	IDEReadError(Address)   (READ_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_ERROR)))
#define	IDEWritePrecomp(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_PRECOMP), (Data)))
#define	IDEReadSectorCount(Address)   (READ_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_SECTOR_CNT)))
#define	IDEWriteSectorCount(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_SECTOR_CNT), (Data)))
#define	IDEReadSectorNum(Address)   (READ_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_SECTOR_NUM)))
#define	IDEWriteSectorNum(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_SECTOR_NUM), (Data)))
#define	IDEReadCylinderLow(Address)   (READ_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_CYL_LOW)))
#define	IDEWriteCylinderLow(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_CYL_LOW), (Data)))
#define	IDEReadCylinderHigh(Address)   (READ_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_CYL_HIGH)))
#define	IDEWriteCylinderHigh(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_CYL_HIGH), (Data)))
#define	IDEReadDriveHead(Address)   (READ_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_DRV_HEAD)))
#define	IDEWriteDriveHead(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_DRV_HEAD), (Data)))
#define	IDEReadStatus(Address)   (READ_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_STATUS)))
#define	IDEWriteCommand(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_COMMAND), (Data)))
#define	IDEReadDMACommand(Address)   (READ_PORT_UCHAR((PUCHAR)((Address))))
#define	IDEWriteDMACommand(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address)), (Data)))
#define	IDEReadDMAStatus(Address)   (READ_PORT_UCHAR((PUCHAR)((Address) + 2)))
#define	IDEWriteDMAStatus(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address) + 2), (Data)))
#define	IDEWritePRDTable(Address, Data)   (WRITE_PORT_ULONG((PULONG)((Address) + 4), (Data)))
#define	IDEReadBlock(Address, Buffer, Count)   (READ_PORT_BUFFER_USHORT((PUSHORT)((Address) + IDE_REG_DATA_PORT), (PUSHORT)(Buffer), (Count) / 2))
#define	IDEWriteBlock(Address, Buffer, Count)   (WRITE_PORT_BUFFER_USHORT((PUSHORT)((Address) + IDE_REG_DATA_PORT), (PUSHORT)(Buffer), (Count) / 2))
#define	IDEReadBlock32(Address, Buffer, Count)   (READ_PORT_BUFFER_ULONG((PULONG)((Address) + IDE_REG_DATA_PORT), (PULONG)(Buffer), (Count) / 4))
#define	IDEWriteBlock32(Address, Buffer, Count)   (WRITE_PORT_BUFFER_ULONG((PULONG)((Address) + IDE_REG_DATA_PORT), (PULONG)(Buffer), (Count) / 4))
#define	IDEReadWord(Address)   (READ_PORT_USHORT((PUSHORT)((Address) + IDE_REG_DATA_PORT)))
#define	IDEReadAltStatus(Address)   (READ_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_ALT_STATUS)))
#define	IDEWriteDriveControl(Address, Data)   (WRITE_PORT_UCHAR((PUCHAR)((Address) + IDE_REG_DEV_CNTRL), (Data)))
#define	IDE_DRID_STBY_SUPPORTED   0x2000
#define	IDE_DRID_IORDY_SUPPORTED   0x0800
#define	IDE_DRID_IORDY_DISABLE   0x0400
#define	IDE_DRID_LBA_SUPPORTED   0x0200
#define	IDE_DRID_DMA_SUPPORTED   0x0100
Functions
	DBG_DEFAULT_CHANNEL (DISK)
static BOOLEAN	XboxDiskPolledRead (ULONG CommandPort, ULONG ControlPort, UCHAR PreComp, UCHAR SectorCnt, UCHAR SectorNum, UCHAR CylinderLow, UCHAR CylinderHigh, UCHAR DrvHead, UCHAR Command, PVOID Buffer)
BOOLEAN	XboxDiskReadLogicalSectors (UCHAR DriveNumber, ULONGLONG SectorNumber, ULONG SectorCount, PVOID Buffer)
BOOLEAN	XboxDiskGetPartitionEntry (UCHAR DriveNumber, ULONG PartitionNumber, PPARTITION_TABLE_ENTRY PartitionTableEntry)
BOOLEAN	XboxDiskGetDriveGeometry (UCHAR DriveNumber, PGEOMETRY Geometry)
ULONG	XboxDiskGetCacheableBlockCount (UCHAR DriveNumber)
Variables
struct {
ULONG   SectorCountBeforePartition
ULONG   PartitionSectorCount
UCHAR   SystemIndicator
}	XboxPartitions []