mirror of https://github.com/pbatard/rufus.git
287 lines
11 KiB
C
287 lines
11 KiB
C
/*
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$Id: sector.h,v 1.38 2008/03/25 15:59:09 karl Exp $
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Copyright (C) 2003, 2004, 2005, 2006, 2008 Rocky Bernstein <rocky@gnu.org>
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Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*!
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\file sector.h
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\brief Things related to CD-ROM layout: tracks, sector sizes, MSFs, LBAs.
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A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336,
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2340, or 2352 bytes long.
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Sector types of the standard CD-ROM data formats:
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\verbatim
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format sector type user data size (bytes)
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-----------------------------------------------------------------------------
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1 (Red Book) CD-DA 2352 (CDIO_CD_FRAMESIZE_RAW)
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2 (Yellow Book) Mode1 Form1 2048 (CDIO_CD_FRAMESIZE)
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3 (Yellow Book) Mode1 Form2 2336 (M2RAW_SECTOR_SIZE)
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4 (Green Book) Mode2 Form1 2048 (CDIO_CD_FRAMESIZE)
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5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes)
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The layout of the standard CD-ROM data formats:
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-----------------------------------------------------------------------------
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- audio (red): | audio_sample_bytes |
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| 2352 |
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- data (yellow, mode1): | sync - head - data - EDC - zero - ECC |
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| 12 - 4 - 2048 - 4 - 8 - 276 |
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- data (yellow, mode2): | sync - head - data |
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| 12 - 4 - 2336 |
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- XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC |
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| 12 - 4 - 8 - 2048 - 4 - 276 |
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- XA data (green, mode2 form2): | sync - head - sub - data - Spare |
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| 12 - 4 - 8 - 2324 - 4 |
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\endverbatim
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*/
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#ifndef _CDIO_SECTOR_H_
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#define _CDIO_SECTOR_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <cdio/types.h>
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/*! Information that can be obtained through a Read Subchannel
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command.
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*/
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#define CDIO_SUBCHANNEL_SUBQ_DATA 0
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#define CDIO_SUBCHANNEL_CURRENT_POSITION 1
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#define CDIO_SUBCHANNEL_MEDIA_CATALOG 2
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#define CDIO_SUBCHANNEL_TRACK_ISRC 3
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/*! track flags
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* Q Sub-channel Control Field (4.2.3.3)
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*/
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typedef enum {
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NONE = 0x00, /* no flags set */
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PRE_EMPHASIS = 0x01, /* audio track recorded with pre-emphasis */
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COPY_PERMITTED = 0x02, /* digital copy permitted */
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DATA = 0x04, /* data track */
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FOUR_CHANNEL_AUDIO = 0x08, /* 4 audio channels */
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SCMS = 0x10 /* SCMS (5.29.2.7) */
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} flag_t;
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#define CDIO_PREGAP_SECTORS 150
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#define CDIO_POSTGAP_SECTORS 150
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/*! An enumeration for some of the CDIO_CD \#defines below. This isn't
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really an enumeration one would really use in a program it is to
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be helpful in debuggers where wants just to refer to the CDIO_CD_
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names and get something.
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*/
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extern enum cdio_cd_enums {
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CDIO_CD_MINS = 74, /**< max. minutes per CD, not really
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a limit */
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CDIO_CD_SECS_PER_MIN = 60, /**< seconds per minute */
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CDIO_CD_FRAMES_PER_SEC = 75, /**< frames per second */
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CDIO_CD_SYNC_SIZE = 12, /**< 12 sync bytes per raw data
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frame */
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CDIO_CD_CHUNK_SIZE = 24, /**< lowest-level "data bytes
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piece" */
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CDIO_CD_NUM_OF_CHUNKS = 98, /**< chunks per frame */
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CDIO_CD_FRAMESIZE_SUB = 96, /**< subchannel data "frame" size */
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CDIO_CD_HEADER_SIZE = 4, /**< header (address) bytes per raw
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frame */
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CDIO_CD_SUBHEADER_SIZE = 8, /**< subheader bytes per raw XA data
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frame */
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CDIO_CD_ECC_SIZE = 276, /**< bytes ECC per most raw data
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frame types */
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CDIO_CD_FRAMESIZE = 2048, /**< bytes per frame, "cooked"
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mode */
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CDIO_CD_FRAMESIZE_RAW = 2352, /**< bytes per frame, "raw" mode */
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CDIO_CD_FRAMESIZE_RAWER = 2646, /**< The maximum possible
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returned */
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CDIO_CD_FRAMESIZE_RAW1 = 2340,
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CDIO_CD_FRAMESIZE_RAW0 = 2336,
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CDIO_CD_MAX_SESSIONS = 99,
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CDIO_CD_MIN_SESSION_NO = 1, /**<, Smallest CD session number */
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CDIO_CD_MAX_LSN = 450150, /**< Largest LSN in a CD */
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CDIO_CD_MIN_LSN = -450150, /**< Smallest LSN in a CD */
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} cdio_cd_enums;
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/*!
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Some generally useful CD-ROM information -- mostly based on the above.
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This is from linux.h - not to slight other OS's. This was the first
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place I came across such useful stuff.
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*/
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#define CDIO_CD_MINS 74 /**< max. minutes per CD, not really
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a limit */
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#define CDIO_CD_SECS_PER_MIN 60 /**< seconds per minute */
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#define CDIO_CD_FRAMES_PER_SEC 75 /**< frames per second */
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#define CDIO_CD_SYNC_SIZE 12 /**< 12 sync bytes per raw data frame */
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#define CDIO_CD_CHUNK_SIZE 24 /**< lowest-level "data bytes piece" */
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#define CDIO_CD_NUM_OF_CHUNKS 98 /**< chunks per frame */
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#define CDIO_CD_FRAMESIZE_SUB 96 /**< subchannel data "frame" size */
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#define CDIO_CD_HEADER_SIZE 4 /**< header (address) bytes per raw
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data frame */
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#define CDIO_CD_SUBHEADER_SIZE 8 /**< subheader bytes per raw XA data
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frame */
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#define CDIO_CD_EDC_SIZE 4 /**< bytes EDC per most raw data
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frame types */
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#define CDIO_CD_M1F1_ZERO_SIZE 8 /**< bytes zero per yellow book mode
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1 frame */
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#define CDIO_CD_ECC_SIZE 276 /**< bytes ECC per most raw data frame
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types */
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#define CDIO_CD_FRAMESIZE 2048 /**< bytes per frame, "cooked" mode */
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#define CDIO_CD_FRAMESIZE_RAW 2352 /**< bytes per frame, "raw" mode */
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#define CDIO_CD_FRAMESIZE_RAWER 2646 /**< The maximum possible returned
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bytes */
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#define CDIO_CD_FRAMESIZE_RAW1 (CDIO_CD_CD_FRAMESIZE_RAW-CDIO_CD_SYNC_SIZE) /*2340*/
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#define CDIO_CD_FRAMESIZE_RAW0 (CDIO_CD_FRAMESIZE_RAW-CDIO_CD_SYNC_SIZE-CDIO_CD_HEADER_SIZE) /*2336*/
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/*! "before data" part of raw XA (green, mode2) frame */
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#define CDIO_CD_XA_HEADER (CDIO_CD_HEADER_SIZE+CDIO_CD_SUBHEADER_SIZE)
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/*! "after data" part of raw XA (green, mode2 form1) frame */
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#define CDIO_CD_XA_TAIL (CDIO_CD_EDC_SIZE+CDIO_CD_ECC_SIZE)
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/*! "before data" sync bytes + header of XA (green, mode2) frame */
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#define CDIO_CD_XA_SYNC_HEADER (CDIO_CD_SYNC_SIZE+CDIO_CD_XA_HEADER)
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/*! String of bytes used to identify the beginning of a Mode 1 or
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Mode 2 sector. */
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extern const uint8_t CDIO_SECTOR_SYNC_HEADER[CDIO_CD_SYNC_SIZE];
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/**<
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{0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0};
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*/
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/*! An enumeration for some of the M2*_SECTOR_SIZE \#defines
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below. This isn't really an enumeration one would really use in a
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program it is to be helpful in debuggers where wants just to refer
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to the M2*_SECTOR_SIZE names and get something.
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*/
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extern enum m2_sector_enums {
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M2F2_SECTOR_SIZE = 2324,
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M2SUB_SECTOR_SIZE = 2332,
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M2RAW_SECTOR_SIZE = 2336
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} m2_sector_enums;
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#define M2F2_SECTOR_SIZE 2324
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#define M2SUB_SECTOR_SIZE 2332
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#define M2RAW_SECTOR_SIZE 2336
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/*! Largest CD session number */
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#define CDIO_CD_MAX_SESSIONS 99
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/*! Smallest CD session number */
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#define CDIO_CD_MIN_SESSION_NO 1
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/*! Largest LSN in a CD */
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#define CDIO_CD_MAX_LSN 450150
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/*! Smallest LSN in a CD */
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#define CDIO_CD_MIN_LSN -450150
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#define CDIO_CD_FRAMES_PER_MIN \
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(CDIO_CD_FRAMES_PER_SEC*CDIO_CD_SECS_PER_MIN)
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#define CDIO_CD_74MIN_SECTORS (UINT32_C(74)*CDIO_CD_FRAMES_PER_MIN)
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#define CDIO_CD_80MIN_SECTORS (UINT32_C(80)*CDIO_CD_FRAMES_PER_MIN)
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#define CDIO_CD_90MIN_SECTORS (UINT32_C(90)*CDIO_CD_FRAMES_PER_MIN)
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#define CDIO_CD_MAX_SECTORS \
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(UINT32_C(100)*CDIO_CD_FRAMES_PER_MIN-CDIO_PREGAP_SECTORS)
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#define msf_t_SIZEOF 3
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/*!
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Convert an LBA into a string representation of the MSF.
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\warning cdio_lba_to_msf_str returns new allocated string */
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char *cdio_lba_to_msf_str (lba_t i_lba);
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/*!
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Convert an MSF into a string representation of the MSF.
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\warning cdio_msf_to_msf_str returns new allocated string */
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char *cdio_msf_to_str (const msf_t *p_msf);
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/*!
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Convert an LBA into the corresponding LSN.
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*/
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lba_t cdio_lba_to_lsn (lba_t i_lba);
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/*!
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Convert an LBA into the corresponding MSF.
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*/
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void cdio_lba_to_msf(lba_t i_lba, msf_t *p_msf);
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/*!
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Convert an LSN into the corresponding LBA.
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CDIO_INVALID_LBA is returned if there is an error.
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*/
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lba_t cdio_lsn_to_lba (lsn_t i_lsn);
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/*!
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Convert an LSN into the corresponding MSF.
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*/
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void cdio_lsn_to_msf (lsn_t i_lsn, msf_t *p_msf);
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/*!
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Convert a MSF into the corresponding LBA.
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CDIO_INVALID_LBA is returned if there is an error.
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*/
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lba_t cdio_msf_to_lba (const msf_t *p_msf);
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/*!
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Convert a MSF into the corresponding LSN.
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CDIO_INVALID_LSN is returned if there is an error.
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*/
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lsn_t cdio_msf_to_lsn (const msf_t *p_msf);
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/*!
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Convert a MSF - broken out as 3 integer components into the
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corresponding LBA.
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CDIO_INVALID_LBA is returned if there is an error.
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*/
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lba_t cdio_msf3_to_lba (unsigned int minutes, unsigned int seconds,
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unsigned int frames);
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/*!
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Convert a string of the form MM:SS:FF into the corresponding LBA.
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CDIO_INVALID_LBA is returned if there is an error.
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*/
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lba_t cdio_mmssff_to_lba (const char *psz_mmssff);
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#ifdef __cplusplus
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}
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#endif
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#ifndef DO_NOT_WANT_PARANOIA_COMPATIBILITY
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/** For compatibility with good ol' paranoia */
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#define CD_FRAMESIZE_RAW CDIO_CD_FRAMESIZE_RAW
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#endif /*DO_NOT_WANT_PARANOIA_COMPATIBILITY*/
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#endif /* _CDIO_SECTOR_H_ */
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/*
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* Local variables:
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* c-file-style: "gnu"
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*/
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