INT 13 emulation. More...

#include <stdint.h>
#include <ipxe/list.h>
#include <ipxe/edd.h>
#include <realmode.h>

Data Structures
struct	int13_disk_address
	An INT 13 disk address packet. More...

struct	int13_disk_parameters
	INT 13 disk parameters. More...

struct	int13_cdrom_specification
	Bootable CD-ROM specification packet. More...

struct	int13_cdrom_boot_catalog_command
	Bootable CD-ROM boot catalog command packet. More...

struct	partition_chs
	A C/H/S address within a partition table entry. More...

struct	partition_table_entry
	A partition table entry within the MBR. More...

struct	master_boot_record
	A Master Boot Record. More...

struct	int13_fdd_geometry
	A floppy disk geometry. More...

struct	int13_fdd_parameters
	A floppy drive parameter table. More...

Macros
#define	INT13_RESET 0x00
	Reset disk system. More...

#define	INT13_GET_LAST_STATUS 0x01
	Get status of last operation. More...

#define	INT13_READ_SECTORS 0x02
	Read sectors. More...

#define	INT13_WRITE_SECTORS 0x03
	Write sectors. More...

#define	INT13_GET_PARAMETERS 0x08
	Get drive parameters. More...

#define	INT13_GET_DISK_TYPE 0x15
	Get disk type. More...

#define	INT13_EXTENSION_CHECK 0x41
	Extensions installation check. More...

#define	INT13_EXTENDED_READ 0x42
	Extended read. More...

#define	INT13_EXTENDED_WRITE 0x43
	Extended write. More...

#define	INT13_EXTENDED_VERIFY 0x44
	Verify sectors. More...

#define	INT13_EXTENDED_SEEK 0x47
	Extended seek. More...

#define	INT13_GET_EXTENDED_PARAMETERS 0x48
	Get extended drive parameters. More...

#define	INT13_CDROM_STATUS_TERMINATE 0x4b
	Get CD-ROM status / terminate emulation. More...

#define	INT13_CDROM_READ_BOOT_CATALOG 0x4d
	Read CD-ROM boot catalog. More...

#define	INT13_STATUS_SUCCESS 0x00
	Operation completed successfully. More...

#define	INT13_STATUS_INVALID 0x01
	Invalid function or parameter. More...

#define	INT13_STATUS_READ_ERROR 0x04
	Read error. More...

#define	INT13_STATUS_RESET_FAILED 0x05
	Reset failed. More...

#define	INT13_STATUS_WRITE_ERROR 0xcc
	Write error. More...

#define	INT13_BLKSIZE 512
	Block size for non-extended INT 13 calls. More...

#define	INT13_FDD_TYPE_360K 0x01
	360K More...

#define	INT13_FDD_TYPE_1M2 0x02
	1.2M More...

#define	INT13_FDD_TYPE_720K 0x03
	720K More...

#define	INT13_FDD_TYPE_1M44 0x04
	1.44M More...

#define	INT13_DISK_TYPE_NONE 0x00
	No such drive. More...

#define	INT13_DISK_TYPE_FDD 0x01
	Floppy without change-line support. More...

#define	INT13_DISK_TYPE_FDD_CL 0x02
	Floppy with change-line support. More...

#define	INT13_DISK_TYPE_HDD 0x03
	Hard disk. More...

#define	INT13_FL_DMA_TRANSPARENT 0x01
	DMA boundary errors handled transparently. More...

#define	INT13_FL_CHS_VALID 0x02
	CHS information is valid. More...

#define	INT13_FL_REMOVABLE 0x04
	Removable drive. More...

#define	INT13_FL_VERIFIABLE 0x08
	Write with verify supported. More...

#define	INT13_FL_CHANGE_LINE 0x10
	Has change-line supported (valid only for removable drives) More...

#define	INT13_FL_LOCKABLE 0x20
	Drive can be locked (valid only for removable drives) More...

#define	INT13_FL_CHS_MAX 0x40
	CHS is max possible, not current media (valid only for removable drives) More...

#define	INT13_EXTENSION_LINEAR 0x01
	Extended disk access functions supported. More...

#define	INT13_EXTENSION_REMOVABLE 0x02
	Removable drive functions supported. More...

#define	INT13_EXTENSION_EDD 0x04
	EDD functions supported. More...

#define	INT13_EXTENSION_64BIT 0x08
	64-bit extensions are present More...

#define	INT13_EXTENSION_VER_1_X 0x01
	INT13 extensions version 1.x. More...

#define	INT13_EXTENSION_VER_2_0 0x20
	INT13 extensions version 2.0 (EDD-1.0) More...

#define	INT13_EXTENSION_VER_2_1 0x21
	INT13 extensions version 2.1 (EDD-1.1) More...

#define	INT13_EXTENSION_VER_3_0 0x30
	INT13 extensions version 3.0 (EDD-3.0) More...

#define	INT13_MAX_CHS_SECTORS 15482880
	Maximum number of sectors for which CHS geometry is allowed to be valid. More...

#define	PART_HEAD(chs) ( (chs).head )

#define	PART_SECTOR(chs) ( (chs).cyl_sector & 0x3f )

#define	PART_CYLINDER(chs) ( (chs).cyl \| ( ( (chs).cyl_sector & 0xc0 ) << 2 ) )

#define	INT13_MBR_MAGIC 0xaa55
	MBR magic signature. More...

#define	INT13_FDD_GEOMETRY(cylinders, heads, sectors)
	Define a floppy disk geometry. More...

#define	INT13_FDD_CYLINDERS(geometry) ( (geometry)->tracks )
	Get floppy disk number of cylinders. More...

#define	INT13_FDD_HEADS(geometry) ( (geometry)->heads_spt >> 6 )
	Get floppy disk number of heads. More...

#define	INT13_FDD_SECTORS(geometry) ( (geometry)->heads_spt & 0x3f )
	Get floppy disk number of sectors per track. More...

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)

struct int13_disk_address	__attribute__ ((packed))

Variables
uint8_t	bufsize
	Size of the packet, in bytes. More...

uint8_t	reserved_a
	Reserved. More...

uint8_t	count
	Block count. More...

uint8_t	reserved_b
	Reserved. More...

struct segoff	buffer
	Data buffer. More...

uint64_t	lba
	Starting block number. More...

uint64_t	buffer_phys
	Data buffer (EDD 3.0+ only) More...

uint32_t	long_count
	Block count (EDD 4.0+ only) More...

uint32_t	reserved_c
	Reserved. More...

uint16_t	flags
	Flags. More...

uint32_t	cylinders
	Number of cylinders. More...

uint32_t	heads
	Number of heads. More...

uint32_t	sectors_per_track
	Number of sectors per track. More...

uint64_t	sectors
	Total number of sectors on drive. More...

uint16_t	sector_size
	Bytes per sector. More...

struct segoff	dpte
	Device parameter table extension. More...

struct edd_device_path_information	dpi
	Device path information. More...

uint8_t	size
	Size of packet in bytes. More...

uint8_t	media_type
	Boot media type. More...

uint8_t	drive
	Drive number. More...

uint8_t	controller
	CD-ROM controller number. More...

uint16_t	device
	Device specification. More...

uint16_t	cache_segment
	Segment of 3K buffer for caching CD-ROM reads. More...

uint16_t	load_segment
	Load segment for initial boot image. More...

uint16_t	load_sectors
	Number of 512-byte sectors to load. More...

uint8_t	cyl
	Low 8 bits of cylinder number. More...

uint8_t	cyl_sector
	Sector number, plus high 2 bits of cylinder number. More...

uint8_t	head
	Head number. More...

uint16_t	start
	First sector in boot catalog to transfer. More...

uint8_t	bootable
	Bootable flag. More...

struct partition_chs	chs_start
	C/H/S start address. More...

uint8_t	type
	System indicator (partition type) More...

struct partition_chs	chs_end
	C/H/S end address. More...

uint32_t	length
	Linear length. More...

uint8_t	code [440]
	Code area. More...

uint32_t	signature
	Disk signature. More...

uint8_t	pad [2]
	Padding. More...

struct partition_table_entry	partitions [4]
	Partition table. More...

uint16_t	magic
	0x55aa MBR signature More...

struct int13_fdd_geometry	__attribute__

uint8_t	step_rate__head_unload

uint8_t	head_load__ndma

uint8_t	motor_off_delay

uint8_t	bytes_per_sector

uint8_t	gap_length

uint8_t	data_length

uint8_t	format_gap_length

uint8_t	format_filler

uint8_t	head_settle_time

uint8_t	motor_start_time

Detailed Description

INT 13 emulation.

Definition in file int13.h.

Macro Definition Documentation

◆ INT13_BLKSIZE

#define INT13_BLKSIZE 512

Block size for non-extended INT 13 calls.

Definition at line 72 of file int13.h.

Function Documentation

◆ FILE_LICENCE()

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ INT13_BLKSIZE

Function Documentation

◆ FILE_LICENCE()