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1 /*
2     SDL - Simple DirectMedia Layer
3     Copyright (C) 1997-2004 Sam Lantinga
4 
5     This library is free software; you can redistribute it and/or
6     modify it under the terms of the GNU Library General Public
7     License as published by the Free Software Foundation; either
8     version 2 of the License, or (at your option) any later version.
9 
10     This library is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13     Library General Public License for more details.
14 
15     You should have received a copy of the GNU Library General Public
16     License along with this library; if not, write to the Free
17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18 
19     Sam Lantinga
20     slouken@libsdl.org
21 */
22 #include "SDL_config.h"
23 
24 /* This is the MacOS specific header for the SDL CD-ROM API
25    Contributed by Matt Slot
26  */
27 
28 /* AppleCD Control calls */
29 #define kVerifyTheDisc   	  5		/* Returns noErr if there is disc inserted */
30 #define kEjectTheDisc   	  7		/* Eject disc from drive */
31 #define kUserEject    		 80		/* Enable/disable the CD-ROM eject button */
32 #define kReadTOC    		100		/* Extract various TOC information from the disc */
33 #define kReadQ   			101		/* Extract Q subcode info for the current track */
34 #define kAudioTrackSearch   103		/* Start playback from the indicated position */
35 #define kAudioPlay    		104		/* Start playback from the indicated position */
36 #define kAudioPause    		105		/* Pause/continue the playback */
37 #define kAudioStop    		106		/* Stop playback at the indicated position */
38 #define kAudioStatus    	107		/* Return audio play status */
39 #define kAudioControl    	109		/* Set the output volume for the audio channels */
40 #define kReadAudioVolume   	112		/* Get the output volume for the audio channels */
41 #define kSetTrackList   	122		/* Set the track program for the audio CD to play */
42 #define kGetTrackList   	123		/* Get the track program the audio CD is playing */
43 #define kGetTrackIndex   	124		/* Get the track index the audio CD is playing */
44 #define kSetPlayMode   		125		/* Set the audio tracks play mode */
45 #define kGetPlayMode   		126		/* Get the audio tracks play mode */
46 
47 /* AppleCD Status calls */
48 #define kGetDriveType   	 96		/* Get the type of the physical CD-ROM drive */
49 #define kWhoIsThere    		 97		/* Get a bitmap of SCSI IDs the driver controls */
50 #define kGetBlockSize    	 98		/* Get current block size of the CD-ROM drive */
51 
52 /* AppleCD other constants */
53 #define kBlockPosition    	  0		/* Position at the specified logical block number */
54 #define kAbsMSFPosition    	  1		/* Position at the specified Min/Sec/Frame (in BCD) */
55 #define kTrackPosition    	  2		/* Position at the specified track number (in BCD) */
56 #define kIndexPosition    	  3		/* Position at the nth track in program (in BCD) */
57 
58 #define kMutedPlayMode   	  0		/* Play the audio track with no output */
59 #define kStereoPlayMode   	  9		/* Play the audio track in normal stereo */
60 
61 #define kControlFieldMask  	0x0D	/* Bits 3,2,0 in the nibble */
62 #define kDataTrackMask   	0x04	/* Indicates Data Track */
63 
64 #define kGetTrackRange    	  1		/* Query TOC for track numbers */
65 #define kGetLeadOutArea    	  2		/* Query TOC for "Lead Out" end of audio data */
66 #define kGetTrackEntries   	  3		/* Query TOC for track starts and data types */
67 
68 #define kStatusPlaying		  0		/* Audio Play operation in progress */
69 #define kStatusPaused		  1		/* CD-ROM device in Hold Track ("Pause") state */
70 #define kStatusMuted		  2		/* MUTING-ON operation in progress */
71 #define kStatusDone			  3		/* Audio Play completed */
72 #define kStatusError		  4		/* Error occurred during audio play operation */
73 #define kStatusStopped		  5		/* Audio play operation not requested */
74 
75 #define kPlayModeSequential	  0		/*  Play tracks in order */
76 #define kPlayModeShuffled	  1		/* Play tracks randomly */
77 #define kPlayModeProgrammed   2		/* Use custom playlist */
78 
79 /* AppleCD Gestalt selectors */
80 #define kGestaltAudioCDSelector    'aucd'
81 #define kDriverVersion52   		0x00000520
82 #define kDriverVersion51   		0x00000510
83 #define kDriverVersion50   		0x00000500
84 
85 /* Drive type constants */
86 #define kDriveAppleCD_SC   				  1
87 #define kDriveAppleCD_SCPlus_or_150   	  2
88 #define kDriveAppleCD_300_or_300Plus   	  3
89 
90 /* Misc constants */
91 #define kFirstSCSIDevice   	 -33
92 #define kLastSCSIDevice    	 -40
93 
94 #if PRAGMA_STRUCT_ALIGN
95 	#pragma options align=mac68k
96 #endif
97 
98 /* AppleCD driver parameter block */
99 typedef struct CDCntrlParam {
100 	QElemPtr				qLink;
101 	short					qType;
102 	short					ioTrap;
103 	Ptr						ioCmdAddr;
104 	IOCompletionUPP			ioCompletion;
105 	OSErr					ioResult;
106 	StringPtr				ioNamePtr;
107 	short					ioVRefNum;
108 	short					ioCRefNum;
109 	short					csCode;
110 
111 	union {
112 		long				longs[6];
113 		short				words[11];
114 		unsigned char		bytes[22];
115 		struct {
116 			unsigned char	status;
117 			unsigned char	play;
118 			unsigned char	control;
119 			unsigned char	minute;
120 			unsigned char	second;
121 			unsigned char	frame;
122 			} cd;
123 		} csParam;
124 
125 	} CDCntrlParam, *CDCntrlParamPtr;
126 
127 typedef union CDTrackData {
128 	long				value;			/* Treat as a longword value */
129 	struct {
130 		unsigned char	reserved : 4;	/* Unused by AppleCD driver  */
131 		unsigned char	control : 4;	/* Track flags (data track?) */
132 		unsigned char	min;			/* Start of track (BCD)      */
133 		unsigned char	sec;			/* Start of track (BCD)      */
134 		unsigned char	frame;			/* Start of track (BCD)      */
135 		} entry;						/* Broken into fields        */
136 	} CDTrackData, *CDTrackPtr;
137 
138 #if PRAGMA_STRUCT_ALIGN
139 	#pragma options align=reset
140 #endif
141