diff options
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/include/int13.h')
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/include/int13.h | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/include/int13.h b/qemu/roms/ipxe/src/arch/i386/include/int13.h deleted file mode 100644 index f82a583c6..000000000 --- a/qemu/roms/ipxe/src/arch/i386/include/int13.h +++ /dev/null @@ -1,333 +0,0 @@ -#ifndef INT13_H -#define INT13_H - -/** @file - * - * INT 13 emulation - * - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> -#include <ipxe/list.h> -#include <ipxe/edd.h> -#include <realmode.h> - -/** - * @defgroup int13ops INT 13 operation codes - * @{ - */ - -/** Reset disk system */ -#define INT13_RESET 0x00 -/** Get status of last operation */ -#define INT13_GET_LAST_STATUS 0x01 -/** Read sectors */ -#define INT13_READ_SECTORS 0x02 -/** Write sectors */ -#define INT13_WRITE_SECTORS 0x03 -/** Get drive parameters */ -#define INT13_GET_PARAMETERS 0x08 -/** Get disk type */ -#define INT13_GET_DISK_TYPE 0x15 -/** Extensions installation check */ -#define INT13_EXTENSION_CHECK 0x41 -/** Extended read */ -#define INT13_EXTENDED_READ 0x42 -/** Extended write */ -#define INT13_EXTENDED_WRITE 0x43 -/** Verify sectors */ -#define INT13_EXTENDED_VERIFY 0x44 -/** Extended seek */ -#define INT13_EXTENDED_SEEK 0x47 -/** Get extended drive parameters */ -#define INT13_GET_EXTENDED_PARAMETERS 0x48 -/** Get CD-ROM status / terminate emulation */ -#define INT13_CDROM_STATUS_TERMINATE 0x4b -/** Read CD-ROM boot catalog */ -#define INT13_CDROM_READ_BOOT_CATALOG 0x4d - -/** @} */ - -/** - * @defgroup int13status INT 13 status codes - * @{ - */ - -/** Operation completed successfully */ -#define INT13_STATUS_SUCCESS 0x00 -/** Invalid function or parameter */ -#define INT13_STATUS_INVALID 0x01 -/** Read error */ -#define INT13_STATUS_READ_ERROR 0x04 -/** Reset failed */ -#define INT13_STATUS_RESET_FAILED 0x05 -/** Write error */ -#define INT13_STATUS_WRITE_ERROR 0xcc - -/** @} */ - -/** Block size for non-extended INT 13 calls */ -#define INT13_BLKSIZE 512 - -/** @defgroup int13fddtype INT 13 floppy disk drive types - * @{ - */ - -/** 360K */ -#define INT13_FDD_TYPE_360K 0x01 -/** 1.2M */ -#define INT13_FDD_TYPE_1M2 0x02 -/** 720K */ -#define INT13_FDD_TYPE_720K 0x03 -/** 1.44M */ -#define INT13_FDD_TYPE_1M44 0x04 - -/** An INT 13 disk address packet */ -struct int13_disk_address { - /** Size of the packet, in bytes */ - uint8_t bufsize; - /** Reserved */ - uint8_t reserved_a; - /** Block count */ - uint8_t count; - /** Reserved */ - uint8_t reserved_b; - /** Data buffer */ - struct segoff buffer; - /** Starting block number */ - uint64_t lba; - /** Data buffer (EDD 3.0+ only) */ - uint64_t buffer_phys; - /** Block count (EDD 4.0+ only) */ - uint32_t long_count; - /** Reserved */ - uint32_t reserved_c; -} __attribute__ (( packed )); - -/** INT 13 disk parameters */ -struct int13_disk_parameters { - /** Size of this structure */ - uint16_t bufsize; - /** Flags */ - uint16_t flags; - /** Number of cylinders */ - uint32_t cylinders; - /** Number of heads */ - uint32_t heads; - /** Number of sectors per track */ - uint32_t sectors_per_track; - /** Total number of sectors on drive */ - uint64_t sectors; - /** Bytes per sector */ - uint16_t sector_size; - /** Device parameter table extension */ - struct segoff dpte; - /** Device path information */ - struct edd_device_path_information dpi; -} __attribute__ (( packed )); - -/** - * @defgroup int13types INT 13 disk types - * @{ - */ - -/** No such drive */ -#define INT13_DISK_TYPE_NONE 0x00 -/** Floppy without change-line support */ -#define INT13_DISK_TYPE_FDD 0x01 -/** Floppy with change-line support */ -#define INT13_DISK_TYPE_FDD_CL 0x02 -/** Hard disk */ -#define INT13_DISK_TYPE_HDD 0x03 - -/** @} */ - -/** - * @defgroup int13flags INT 13 disk parameter flags - * @{ - */ - -/** DMA boundary errors handled transparently */ -#define INT13_FL_DMA_TRANSPARENT 0x01 -/** CHS information is valid */ -#define INT13_FL_CHS_VALID 0x02 -/** Removable drive */ -#define INT13_FL_REMOVABLE 0x04 -/** Write with verify supported */ -#define INT13_FL_VERIFIABLE 0x08 -/** Has change-line supported (valid only for removable drives) */ -#define INT13_FL_CHANGE_LINE 0x10 -/** Drive can be locked (valid only for removable drives) */ -#define INT13_FL_LOCKABLE 0x20 -/** CHS is max possible, not current media (valid only for removable drives) */ -#define INT13_FL_CHS_MAX 0x40 - -/** @} */ - -/** - * @defgroup int13exts INT 13 extension flags - * @{ - */ - -/** Extended disk access functions supported */ -#define INT13_EXTENSION_LINEAR 0x01 -/** Removable drive functions supported */ -#define INT13_EXTENSION_REMOVABLE 0x02 -/** EDD functions supported */ -#define INT13_EXTENSION_EDD 0x04 -/** 64-bit extensions are present */ -#define INT13_EXTENSION_64BIT 0x08 - -/** @} */ - -/** - * @defgroup int13vers INT 13 extension versions - * @{ - */ - -/** INT13 extensions version 1.x */ -#define INT13_EXTENSION_VER_1_X 0x01 -/** INT13 extensions version 2.0 (EDD-1.0) */ -#define INT13_EXTENSION_VER_2_0 0x20 -/** INT13 extensions version 2.1 (EDD-1.1) */ -#define INT13_EXTENSION_VER_2_1 0x21 -/** INT13 extensions version 3.0 (EDD-3.0) */ -#define INT13_EXTENSION_VER_3_0 0x30 - -/** @} */ - -/** Maximum number of sectors for which CHS geometry is allowed to be valid - * - * This number is taken from the EDD specification. - */ -#define INT13_MAX_CHS_SECTORS 15482880 - -/** Bootable CD-ROM specification packet */ -struct int13_cdrom_specification { - /** Size of packet in bytes */ - uint8_t size; - /** Boot media type */ - uint8_t media_type; - /** Drive number */ - uint8_t drive; - /** CD-ROM controller number */ - uint8_t controller; - /** LBA of disk image to emulate */ - uint32_t lba; - /** Device specification */ - uint16_t device; - /** Segment of 3K buffer for caching CD-ROM reads */ - uint16_t cache_segment; - /** Load segment for initial boot image */ - uint16_t load_segment; - /** Number of 512-byte sectors to load */ - uint16_t load_sectors; - /** Low 8 bits of cylinder number */ - uint8_t cyl; - /** Sector number, plus high 2 bits of cylinder number */ - uint8_t cyl_sector; - /** Head number */ - uint8_t head; -} __attribute__ (( packed )); - -/** Bootable CD-ROM boot catalog command packet */ -struct int13_cdrom_boot_catalog_command { - /** Size of packet in bytes */ - uint8_t size; - /** Number of sectors of boot catalog to read */ - uint8_t count; - /** Buffer for boot catalog */ - uint32_t buffer; - /** First sector in boot catalog to transfer */ - uint16_t start; -} __attribute__ (( packed )); - -/** A C/H/S address within a partition table entry */ -struct partition_chs { - /** Head number */ - uint8_t head; - /** Sector number, plus high 2 bits of cylinder number */ - uint8_t cyl_sector; - /** Low 8 bits of cylinder number */ - uint8_t cyl; -} __attribute__ (( packed )); - -#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 ) ) - -/** A partition table entry within the MBR */ -struct partition_table_entry { - /** Bootable flag */ - uint8_t bootable; - /** C/H/S start address */ - struct partition_chs chs_start; - /** System indicator (partition type) */ - uint8_t type; - /** C/H/S end address */ - struct partition_chs chs_end; - /** Linear start address */ - uint32_t start; - /** Linear length */ - uint32_t length; -} __attribute__ (( packed )); - -/** A Master Boot Record */ -struct master_boot_record { - /** Code area */ - uint8_t code[440]; - /** Disk signature */ - uint32_t signature; - /** Padding */ - uint8_t pad[2]; - /** Partition table */ - struct partition_table_entry partitions[4]; - /** 0x55aa MBR signature */ - uint16_t magic; -} __attribute__ (( packed )); - -/** MBR magic signature */ -#define INT13_MBR_MAGIC 0xaa55 - -/** A floppy disk geometry */ -struct int13_fdd_geometry { - /** Number of tracks */ - uint8_t tracks; - /** Number of heads and sectors per track */ - uint8_t heads_spt; -}; - -/** Define a floppy disk geometry */ -#define INT13_FDD_GEOMETRY( cylinders, heads, sectors ) \ - { \ - .tracks = (cylinders), \ - .heads_spt = ( ( (heads) << 6 ) | (sectors) ), \ - } - -/** Get floppy disk number of cylinders */ -#define INT13_FDD_CYLINDERS( geometry ) ( (geometry)->tracks ) - -/** Get floppy disk number of heads */ -#define INT13_FDD_HEADS( geometry ) ( (geometry)->heads_spt >> 6 ) - -/** Get floppy disk number of sectors per track */ -#define INT13_FDD_SECTORS( geometry ) ( (geometry)->heads_spt & 0x3f ) - -/** A floppy drive parameter table */ -struct int13_fdd_parameters { - uint8_t step_rate__head_unload; - uint8_t head_load__ndma; - uint8_t motor_off_delay; - uint8_t bytes_per_sector; - uint8_t sectors_per_track; - 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; -} __attribute__ (( packed )); - -#endif /* INT13_H */ |