![[Contents]](../images/toc_d.gif)
![[Index]](../images/index_d.gif)
![[Help]](../images/help_d.gif)
![[Retrace]](../images/retrace_d.gif)
![[Browse <]](../images/prev.gif)
![[Browse >]](../images/next.gif)
#ifndef DEVICES_CD_H
#define DEVICES_CD_H
/*
** $VER: cd.h 1.11 (12.8.1993)
** Includes Release 44.1
**
** cd.device include file
**
** (C) Copyright 1992-1999 Amiga, Inc.
** All Rights Reserved
*/
#include <exec/types.h>
#include <exec/nodes.h>
/**************************************************************************
* *
* CD Commands *
* *
**************************************************************************/
#define CD_RESET 1
#define CD_READ 2
#define CD_WRITE 3
#define CD_UPDATE 4
#define CD_CLEAR 5
#define CD_STOP 6
#define CD_START 7
#define CD_FLUSH 8
#define CD_MOTOR 9
#define CD_SEEK 10
#define CD_FORMAT 11
#define CD_REMOVE 12
#define CD_CHANGENUM 13
#define CD_CHANGESTATE 14
#define CD_PROTSTATUS 15
#define CD_GETDRIVETYPE 18
#define CD_GETNUMTRACKS 19
#define CD_ADDCHANGEINT 20
#define CD_REMCHANGEINT 21
#define CD_GETGEOMETRY 22
#define CD_EJECT 23
#define CD_INFO 32
#define CD_CONFIG 33
#define CD_TOCMSF 34
#define CD_TOCLSN 35
#define CD_READXL 36
#define CD_PLAYTRACK 37
#define CD_PLAYMSF 38
#define CD_PLAYLSN 39
#define CD_PAUSE 40
#define CD_SEARCH 41
#define CD_QCODEMSF 42
#define CD_QCODELSN 43
#define CD_ATTENUATE 44
#define CD_ADDFRAMEINT 45
#define CD_REMFRAMEINT 46
/**************************************************************************
* *
* Device Driver Error Codes *
* *
**************************************************************************/
#define CDERR_OPENFAIL (-1) /* device/unit failed to open */
#define CDERR_ABORTED (-2) /* request terminated early */
#define CDERR_NOCMD (-3) /* command not supported by device */
#define CDERR_BADLENGTH (-4) /* invalid length (IO_LENGTH/IO_OFFSET) */
#define CDERR_BADADDRESS (-5) /* invalid address (IO_DATA misaligned) */
#define CDERR_UNITBUSY (-6) /* device opens ok, but unit is busy */
#define CDERR_SELFTEST (-7) /* hardware failed self-test */
#define CDERR_NotSpecified 20 /* general catchall */
#define CDERR_NoSecHdr 21 /* couldn't even find a sector */
#define CDERR_BadSecPreamble 22 /* sector looked wrong */
#define CDERR_BadSecID 23 /* ditto */
#define CDERR_BadHdrSum 24 /* header had incorrect checksum */
#define CDERR_BadSecSum 25 /* data had incorrect checksum */
#define CDERR_TooFewSecs 26 /* couldn't find enough sectors */
#define CDERR_BadSecHdr 27 /* another "sector looked wrong" */
#define CDERR_WriteProt 28 /* can't write to a protected disk */
#define CDERR_NoDisk 29 /* no disk in the drive */
#define CDERR_SeekError 30 /* couldn't find track 0 */
#define CDERR_NoMem 31 /* ran out of memory */
#define CDERR_BadUnitNum 32 /* asked for a unit > NUMUNITS */
#define CDERR_BadDriveType 33 /* not a drive cd.device understands */
#define CDERR_DriveInUse 34 /* someone else allocated the drive */
#define CDERR_PostReset 35 /* user hit reset; awaiting doom */
#define CDERR_BadDataType 36 /* data on disk is wrong type */
#define CDERR_InvalidState 37 /* invalid cmd under current conditions */
#define CDERR_Phase 42 /* illegal or unexpected SCSI phase */
#define CDERR_NoBoard 50 /* open failed for non-existant board */
/**************************************************************************
* *
* Configuration *
* *
* The drive is configured by TagList items defined as follows: *
* *
**************************************************************************/
#define TAGCD_PLAYSPEED 0x0001
#define TAGCD_READSPEED 0x0002
#define TAGCD_READXLSPEED 0x0003
#define TAGCD_SECTORSIZE 0x0004
#define TAGCD_XLECC 0x0005
#define TAGCD_EJECTRESET 0x0006
/**************************************************************************
* *
* Information *
* *
* Information/Status structure describes current speed settings *
* for read and play commands, sector size, audio attenuation *
* precision, and drive status. *
* *
**************************************************************************/
struct CDInfo {
/* Default */
UWORD PlaySpeed; /* Audio play speed (75) */
UWORD ReadSpeed; /* Data-rate of CD_READ command (Max) */
UWORD ReadXLSpeed; /* Data-rate of CD_READXL command (75) */
UWORD SectorSize; /* Number of bytes per sector (2048) */
UWORD XLECC; /* CDXL ECC enabled/disabled */
UWORD EjectReset; /* Reset on eject enabled/disabled */
UWORD Reserved1[4]; /* Reserved for future expansion */
UWORD MaxSpeed; /* Maximum speed drive can handle (75, 150) */
UWORD AudioPrecision; /* 0 = no attenuator, 1 = mute only, */
/* other = (# levels - 1) */
UWORD Status; /* See flags below */
UWORD Reserved2[4]; /* Reserved for future expansion */
};
/* Flags for Status */
#define CDSTSB_CLOSED 0 /* Drive door is closed */
#define CDSTSB_DISK 1 /* A disk has been detected */
#define CDSTSB_SPIN 2 /* Disk is spinning (motor is on) */
#define CDSTSB_TOC 3 /* Table of contents read. Disk is valid. */
#define CDSTSB_CDROM 4 /* Track 1 contains CD-ROM data */
#define CDSTSB_PLAYING 5 /* Audio is playing */
#define CDSTSB_PAUSED 6 /* Pause mode (pauses on play command) */
#define CDSTSB_SEARCH 7 /* Search mode (Fast Forward/Fast Reverse) */
#define CDSTSB_DIRECTION 8 /* Search direction (0 = Forward, 1 = Reverse) */
#define CDSTSF_CLOSED 0x0001
#define CDSTSF_DISK 0x0002
#define CDSTSF_SPIN 0x0004
#define CDSTSF_TOC 0x0008
#define CDSTSF_CDROM 0x0010
#define CDSTSF_PLAYING 0x0020
#define CDSTSF_PAUSED 0x0040
#define CDSTSF_SEARCH 0x0080
#define CDSTSF_DIRECTION 0x0100
/* Modes for CD_SEARCH */
#define CDMODE_NORMAL 0 /* Normal play at current play speed */
#define CDMODE_FFWD 1 /* Fast forward play (skip-play forward)*/
#define CDMODE_FREV 2 /* Fast reverse play (skip-play reverse)*/
/**************************************************************************
* *
* Position Information *
* *
* Position information can be described in two forms: MSF and LSN *
* form. MSF (Minutes, Seconds, Frames) form is a time encoding. *
* LSN (Logical Sector Number) form is frame (sector) count. *
* The desired form is selected using the io_Flags field of the *
* IOStdReq structure. The flags and the union are described *
* below. *
* *
**************************************************************************/
struct RMSF {
UBYTE Reserved; /* Reserved (always zero) */
UBYTE Minute; /* Minutes (0-72ish) */
UBYTE Second; /* Seconds (0-59) */
UBYTE Frame; /* Frame (0-74) */
};
union LSNMSF {
struct RMSF MSF; /* Minute, Second, Frame */
ULONG LSN; /* Logical Sector Number */
};
/**************************************************************************
* *
* CD Transfer Lists *
* *
* A CDXL node is a double link node; however only single linkage *
* is used by the device driver. If you wish to construct a *
* transfer list manually, it is only neccessary to define the *
* mln_Succ pointer of the MinNode. You may also use the Exec *
* list functions by defining a List or MinList structure and by *
* using the AddHead/AddTail functions to create the list. This *
* will create a double-linked list. Although a double-linked *
* list is not required by the device driver, you may wish use it *
* for your own purposes. Don't forget to initialize the *
* the List/MinList before using it! *
* *
**************************************************************************/
struct CDXL {
struct MinNode Node; /* double linkage */
char *Buffer; /* data destination (word aligned) */
LONG Length; /* must be even # bytes */
LONG Actual; /* bytes transferred */
APTR IntData; /* interrupt server data segment */
VOID (*IntCode)(); /* interrupt server code entry */
};
/**************************************************************************
* *
* CD Table of Contents *
* *
* The CD_TOC command returns an array of CDTOC entries. *
* Entry zero contains summary information describing how many *
* tracks the disk has and the play-time of the disk. *
* Entries 1 through N (N = Number of tracks on disk) contain *
* information about the track. *
* *
**************************************************************************/
struct TOCSummary {
UBYTE FirstTrack; /* First track on disk (always 1) */
UBYTE LastTrack; /* Last track on disk */
union LSNMSF LeadOut; /* Beginning of lead-out track (end of disk) */
};
struct TOCEntry {
UBYTE CtlAdr; /* Q-Code info */
UBYTE Track; /* Track number */
union LSNMSF Position; /* Start position of this track */
};
union CDTOC {
struct TOCSummary Summary; /* First entry (0) is summary information */
struct TOCEntry Entry; /* Entries 1-N are track entries */
};
/**************************************************************************
* *
* Q-Code Packets *
* *
* Q-Code packets are only returned when audio is playing. *
* Currently, only position packets are returned (ADR_POSITION) *
* The other ADR_ types are almost never encoded on the disk *
* and are of little use anyway. To avoid making the QCode *
* structure a union, these other ADR_ structures are not defined. *
* *
**************************************************************************/
struct QCode {
UBYTE CtlAdr; /* Data type / QCode type */
UBYTE Track; /* Track number */
UBYTE Index; /* Track subindex number */
UBYTE Zero; /* The "Zero" byte of Q-Code packet */
union LSNMSF TrackPosition; /* Position from start of track */
union LSNMSF DiskPosition; /* Position from start of disk */
};
#define CTLADR_CTLMASK 0xF0 /* Control field */
#define CTL_CTLMASK 0xD0 /* To be ANDed with CtlAdr before compared */
#define CTL_2AUD 0x00 /* 2 audio channels without preemphasis */
#define CTL_2AUDEMPH 0x10 /* 2 audio channels with preemphasis */
#define CTL_4AUD 0x80 /* 4 audio channels without preemphasis */
#define CTL_4AUDEMPH 0x90 /* 4 audio channels with preemphasis */
#define CTL_DATA 0x40 /* CD-ROM Data */
#define CTL_COPYMASK 0x20 /* To be ANDed with CtlAdr before compared */
#define CTL_COPY 0x20 /* When true, this audio/data can be copied */
#define CTLADR_ADRMASK 0x0F /* Address field */
#define ADR_POSITION 0x01 /* Q-Code is position information */
#define ADR_UPC 0x02 /* Q-Code is UPC information (not used) */
#define ADR_ISRC 0x03 /* Q-Code is ISRC (not used) */
#define ADR_HYBRID 0x05 /* This disk is a hybrid disk */
#endif