1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
/* $OpenBSD: cd.h,v 1.10 2006/03/05 14:58:10 krw Exp $ */
/* $NetBSD: scsi_cd.h,v 1.6 1996/03/19 03:06:39 mycroft Exp $ */
/*
* Written by Julian Elischer (julian@tfs.com)
* for TRW Financial Systems.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
*/
#ifndef _SCSI_CD_H
#define _SCSI_CD_H 1
/*
* Define two bits always in the same place in byte 2 (flag byte)
*/
#define CD_RELADDR 0x01
#define CD_MSF 0x02
/*
* SCSI command format
*/
struct scsi_pause {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[6];
u_int8_t resume;
u_int8_t control;
};
#define PA_PAUSE 1
#define PA_RESUME 0
struct scsi_play_msf {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused;
u_int8_t start_m;
u_int8_t start_s;
u_int8_t start_f;
u_int8_t end_m;
u_int8_t end_s;
u_int8_t end_f;
u_int8_t control;
};
struct scsi_play_track {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[2];
u_int8_t start_track;
u_int8_t start_index;
u_int8_t unused1;
u_int8_t end_track;
u_int8_t end_index;
u_int8_t control;
};
struct scsi_play {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t blk_addr[4];
u_int8_t unused;
u_int8_t xfer_len[2];
u_int8_t control;
};
struct scsi_play_big {
u_int8_t opcode;
u_int8_t byte2; /* same as above */
u_int8_t blk_addr[4];
u_int8_t xfer_len[4];
u_int8_t unused;
u_int8_t control;
};
struct scsi_play_rel_big {
u_int8_t opcode;
u_int8_t byte2; /* same as above */
u_int8_t blk_addr[4];
u_int8_t xfer_len[4];
u_int8_t track;
u_int8_t control;
};
struct scsi_read_header {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t blk_addr[4];
u_int8_t unused;
u_int8_t data_len[2];
u_int8_t control;
};
struct scsi_read_subchannel {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t byte3;
#define SRS_SUBQ 0x40
u_int8_t subchan_format;
u_int8_t unused[2];
u_int8_t track;
u_int8_t data_len[2];
u_int8_t control;
};
struct scsi_read_toc {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t unused[4];
u_int8_t from_track;
u_int8_t data_len[2];
u_int8_t control;
};
struct scsi_read_cd_capacity {
u_int8_t opcode;
u_int8_t byte2;
u_int8_t addr[4];
u_int8_t unused[3];
u_int8_t control;
};
struct scsi_load_unload {
u_int8_t opcode;
u_int8_t reserved;
#define IMMED 0x1
u_int8_t reserved2[2];
u_int8_t options;
#define START 0x1
#define LOUNLO 0x2
u_int8_t reserved4[3];
u_int8_t slot;
u_int8_t reserved5[2];
u_int8_t control;
};
/*
* Opcodes
*/
#define READ_CD_CAPACITY 0x25 /* slightly different from disk */
#define READ_SUBCHANNEL 0x42 /* cdrom read Subchannel */
#define READ_TOC 0x43 /* cdrom read TOC */
#define READ_HEADER 0x44 /* cdrom read header */
#define PLAY 0x45 /* cdrom play 'play audio' mode */
#define PLAY_MSF 0x47 /* cdrom play Min,Sec,Frames mode */
#define PLAY_TRACK 0x48 /* cdrom play track/index mode */
#define PLAY_TRACK_REL 0x49 /* cdrom play track/index mode */
#define PAUSE 0x4b /* cdrom pause in 'play audio' mode */
#define PLAY_BIG 0xa5 /* cdrom pause in 'play audio' mode */
#define LOAD_UNLOAD 0xa6 /* cdrom load/unload media */
#define PLAY_TRACK_REL_BIG 0xa9 /* cdrom play track/index mode */
struct scsi_read_cd_cap_data {
u_int8_t addr[4];
u_int8_t length[4];
};
struct cd_audio_page {
u_int8_t page_code;
#define CD_PAGE_CODE 0x3F
#define AUDIO_PAGE 0x0e
#define CD_PAGE_PS 0x80
u_int8_t param_len;
u_int8_t flags;
#define CD_PA_SOTC 0x02
#define CD_PA_IMMED 0x04
u_int8_t unused[2];
u_int8_t format_lba;
#define CD_PA_FORMAT_LBA 0x0F
#define CD_PA_APR_VALID 0x80
u_int8_t lb_per_sec[2];
struct port_control {
u_int8_t channels;
#define CHANNEL 0x0F
#define CHANNEL_0 1
#define CHANNEL_1 2
#define CHANNEL_2 4
#define CHANNEL_3 8
#define LEFT_CHANNEL CHANNEL_0
#define RIGHT_CHANNEL CHANNEL_1
#define MUTE_CHANNEL 0x0
#define BOTH_CHANNEL LEFT_CHANNEL | RIGHT_CHANNEL
u_int8_t volume;
} port[4];
#define LEFT_PORT 0
#define RIGHT_PORT 1
};
/*
* There are 2352 bytes in a CD digital audio frame. One frame is 1/75 of a
* second, at 44.1kHz sample rate, 16 bits/sample, 2 channels.
*
* The frame data have the two channels interleaved, with the left
* channel first. Samples are little endian 16-bit signed values.
*/
#define CD_DA_BLKSIZ 2352 /* # bytes in CD-DA frame */
#define CD_NORMAL_DENSITY_CODE 0x00 /* from Toshiba CD-ROM specs */
#define CD_DA_DENSITY_CODE 0x82 /* from Toshiba CD-ROM specs */
#define CDRETRIES 4
struct scsi_read_dvd_structure {
u_int8_t opcode; /* GPCMD_READ_DVD_STRUCTURE */
u_int8_t reserved;
u_int8_t address[4];
u_int8_t layer;
u_int8_t format;
u_int8_t length[2];
u_int8_t agid; /* bottom 6 bits reserved */
u_int8_t control;
};
struct scsi_read_dvd_structure_data {
u_int8_t len[2]; /* Big-endian length of valid data. */
u_int8_t reserved[2];
u_int8_t data[2048];
};
#ifdef _KERNEL
struct cd_softc {
struct device sc_dev;
struct disk sc_dk;
int flags;
#define CDF_LOCKED 0x01
#define CDF_WANTED 0x02
#define CDF_WLABEL 0x04 /* label is writable */
#define CDF_LABELLING 0x08 /* writing label */
#define CDF_ANCIENT 0x10 /* disk is ancient; for minphys */
#ifdef CDDA
#define CDF_CDDA 0x20
#endif
struct scsi_link *sc_link; /* contains our targ, lun, etc. */
struct cd_parms {
int blksize;
u_long disksize; /* total number sectors */
} params;
#ifdef CDDA
struct cd_parms orig_params; /* filled in when CD-DA mode starts */
#endif
struct buf buf_queue;
};
#endif /* _KERNEL */
#endif
|
