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; hd_io.h
;
; header file for hd_io.asm
;
; Copyright (C) 2000, Suzhe. See file COPYING and CREDITS for details.
;
%define DRVFLAG_DRIVEOK 0x0001 ;
%define DRVFLAG_CHSVALID 0x0002 ; used in driveinfo structure
%define DRVFLAG_REMOVABLE 0x0004 ; and bootrecord structure
%define DRVFLAG_EXTOK 0x0008 ;
%define DRVFLAG_ISCDROM 0x0010 ; 0000,0000,0001,0000B
%define DRVFLAG_MASK 0x0015 ; 0000,0000,0001,0101B
%define INT13H_EXT_INSTCHECK 0x41
%define INT13H_EXT_READ 0x42
%define INT13H_EXT_WRITE 0x43
%define INT13H_EXT_GETINFO 0x48
%define INT13H_EXT_LOCK 0x45
%define INT13H_RESET 0X00
%define INT13H_READ 0X02
%define INT13H_WRITE 0X03
%define INT13H_GETINFO 0X08
%define INT13H_GETTYPE 0x15
%define EXT_SUBSET_FIXED 0x01
%define EXT_SUBSET_REMOVABLE 0x02
%define EXT_SUBSET_EDD 0x04
%define DRV_TYPE_FIXED 0x03
%define MIN_HD_ID 0X80
%define EXTPARAM_SIZE 0x42
%define MAX_CYLS 1023
; Structure for calling int 13h ext Read / Write functions
struc struc_int13ext
.pack_size : resb 1 ; ==16 size of struct Int13ExtData
.reserved : resb 1 ; ==0
.blk_count : resb 1 ; number of blocks to transfer <= 127
.reserved1 : resb 1 ; ==0
.buf_addr_off : resw 1 ; address of transfer buffer(segment:offset)
.buf_addr_seg : resw 1
.blk_num_low1 : resw 1 ; starting absolute block number
.blk_num_low2 : resw 1
.blk_num_high1: resw 1
.blk_num_high2: resw 1
.end_of_struc
endstruc
; structure for calling int 13h ext get drive parameters functions (0x48)
struc struc_extparam
.pack_size : resw 1
.flags : resw 1
.cylinders : resd 1
.heads : resd 1 ; <= 255
.sectors : resd 1 ; <= 63
.total_sectors : resd 2
.bytes_per_sect : resw 1
.dpte_addr : resd 1 ; device parameter table extension
.dpi_key : resw 1 ; 0xBEDD - Key, indicates presence
; of Device Path Information
.dpi_length : resb 1 ; Length of Device Path Information
; including the key. = 36
.reserved1 : resb 1
.reserved2 : resw 1
.host_bus_type : resb 4 ; Host bus type, 4 bytes
; PCI PCI Local Bus
; ISA Legacy 16 bit fixed bus
.interface_type : resb 8 ; Interface type, 8 bytes
; ATA ATA/ATAPI-4 compliant device using ATA commands
; ATAPI ATA/ATAPI-4 compliant device using ATAPI commands
; SCSI SCSI compliant device
; USB USB Mass Storage compliant device
; 1394 1394 Mass Storage device
; FIBRE Fibre Channel
.interface_path : resq 1
.device_path : resq 1
.reserved3 : resb 1
.checksum : resb 1
.end_of_struc
endstruc
; Device parameter table extension
%define SIZE_OF_DPTE struc_dpte.end_of_struc
struc struc_dpte
.base_io : resw 1
.ctrl_io : resw 1
.flags : resb 1
.vender_spec : resb 1
.irq : resb 1
.blk_count : resb 1
.dma : resb 1
.pio : resb 1
.bios_spec : resw 1
.reserved : resw 1
.revision : resb 1
.checksum : resb 1
.end_of_struc
endstruc
;Return cdrom boot catalog command packet
%define SIZE_OF_CDBC_CMD struc_cdbc_cmd.end_of_struc
struc struc_cdbc_cmd
.pack_size : resb 1
.sector_count : resb 1
.buf_addr_off : resw 1
.buf_addr_seg : resw 1
.begnning_sect : resw 1
.end_of_struc
endstruc
;CD Emulation Specification Packet
%define SIZE_OF_CDEMU_SPEC struc_cdemu_spec.end_of_struc
struc struc_cdemu_spec
.pack_size : resb 1
.media_type : resb 1
.emu_drvid : resb 1
.controller_id : resb 1
.image_lba : resd 1
.device_spec : resw 1
.user_bufseg : resw 1
.load_seg : resw 1
.sect_count : resw 1
.cylinders : resb 1
.sectors : resb 1
.heads : resb 1
.end_of_struc
endstruc
;Structure of boot catalog entry
%define SIZE_OF_BOOT_CATALOG struc_boot_catalog.end_of_struc
struc struc_boot_catalog
.indicator : resb 1
.media_type : resb 1
.load_seg : resw 1
.sys_type : resb 1
.reserved : resb 1
.sect_count : resw 1
.load_rba : resd 1
.reserved1 : resb 20
.end_of_struc
endstruc
; structure for record drive informations
struc struc_driveinfo
.id : resb 1
.flags : resb 1
.cylinders : resw 1
.heads : resw 1
.sectors : resw 1
.sector_size : resw 1
.end_of_struc
endstruc
%define SIZE_OF_DRIVEINFO (struc_driveinfo.end_of_struc)
%define SIZE_OF_EXTPARAM (struc_extparam.end_of_struc)
%define SIZE_OF_INT13EXT (struc_int13ext.end_of_struc)
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