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1 /****************************************************************************************
2 * *
3 * SCSI header library for linux *
4 * (C) 1992 David Giller rafetmad@oxy.edu *
5 * *
6 * <linux/cdrom.h> -- CD-ROM IOCTLs and structs *
7 * *
8 ****************************************************************************************/
9
10 #ifndef _LINUX_CDROM_H
11 #define _LINUX_CDROM_H
12
13 /*
14 *
15 * For IOCTL calls, we will commandeer byte 0x53, or 'S'.
16 *
17 */
18
19 /*
20 * CD-ROM-specific SCSI command opcodes
21 */
22
23 /*
24 * Group 2 (10-byte). All of these are called 'optional' by SCSI-II.
25 */
26
27 #define SCMD_READ_TOC 0x43 /* read table of contents */
28 #define SCMD_PLAYAUDIO_MSF 0x47 /* play data at time offset */
29 #define SCMD_PLAYAUDIO_TI 0x48 /* play data at track/index */
30 #define SCMD_PAUSE_RESUME 0x4B /* pause/resume audio */
31 #define SCMD_READ_SUBCHANNEL 0x42 /* read SC info on playing disc */
32 #define SCMD_PLAYAUDIO10 0x45 /* play data at logical block */
33 #define SCMD_READ_HEADER 0x44 /* read TOC header */
34
35 /*
36 * Group 5
37 */
38
39 #define SCMD_PLAYAUDIO12 0xA5 /* play data at logical block */
40 #define SCMD_PLAYTRACK_REL12 0xA9 /* play track at relative offset*/
41
42 /*
43 * Group 6 Commands
44 */
45
46 #define SCMD_CD_PLAYBACK_CONTROL 0xC9 /* Sony vendor-specific audio */
47 #define SCMD_CD_PLAYBACK_STATUS 0xC4 /* control opcodes. info please!*/
48
49 /*
50 * CD-ROM capacity structure.
51 */
52
53 struct scsi_capacity
54 {
55 u_long capacity;
56 u_long lbasize;
57 };
58
59 /*
60 * CD-ROM MODE_SENSE/MODE_SELECT parameters
61 */
62
63 #define ERR_RECOVERY_PARMS 0x01
64 #define DISCO_RECO_PARMS 0x02
65 #define FORMAT_PARMS 0x03
66 #define GEOMETRY_PARMS 0x04
67 #define CERTIFICATION_PARMS 0x06
68 #define CACHE_PARMS 0x38
69
70 /*
71 * standard mode-select header prepended to all mode-select commands
72 */
73
74 struct ccs_modesel_head
75 {
76 u_char _r1; /* reserved */
77 u_char medium; /* device-specific medium type */
78 u_char _r2; /* reserved */
79 u_char block_desc_length; /* block descriptor length */
80 u_char density; /* device-specific density code */
81 u_char number_blocks_hi; /* number of blocks in this block desc */
82 u_char number_blocks_med;
83 u_char number_blocks_lo;
84 u_char _r3;
85 u_char block_length_hi; /* block length for blocks in this desc */
86 u_short block_length;
87 };
88
89 /*
90 * error recovery parameters
91 */
92
93 struct ccs_err_recovery
94 {
95 u_char _r1 : 2; /* reserved */
96 u_char page_code : 6; /* page code */
97 u_char page_length; /* page length */
98 u_char awre : 1; /* auto write realloc enabled */
99 u_char arre : 1; /* auto read realloc enabled */
100 u_char tb : 1; /* transfer block */
101 u_char rc : 1; /* read continuous */
102 u_char eec : 1; /* enable early correction */
103 u_char per : 1; /* post error */
104 u_char dte : 1; /* disable transfer on error */
105 u_char dcr : 1; /* disable correction */
106 u_char retry_count; /* error retry count */
107 u_char correction_span; /* largest recov. to be attempted, bits */
108 u_char head_offset_count; /* head offset (2's C) for each retry */
109 u_char strobe_offset_count; /* data strobe " */
110 u_char recovery_time_limit; /* time limit on recovery attempts */
111 };
112
113 /*
114 * disco/reco parameters
115 */
116
117 struct ccs_disco_reco
118 {
119 u_char _r1 : 2; /* reserved */
120 u_char page_code : 6; /* page code */
121 u_char page_length; /* page length */
122 u_char buffer_full_ratio; /* write buffer reconnect threshold */
123 u_char buffer_empty_ratio; /* read " */
124 u_short bus_inactivity_limit; /* limit on bus inactivity time */
125 u_short disconnect_time_limit; /* minimum disconnect time */
126 u_short connect_time_limit; /* minimum connect time */
127 u_short _r2; /* reserved */
128 };
129
130 /*
131 * drive geometry parameters
132 */
133
134 struct ccs_geometry
135 {
136 u_char _r1 : 2; /* reserved */
137 u_char page_code : 6; /* page code */
138 u_char page_length; /* page length */
139 u_char cyl_ub; /* #cyls */
140 u_char cyl_mb;
141 u_char cyl_lb;
142 u_char heads; /* #heads */
143 u_char precomp_cyl_ub; /* precomp start */
144 u_char precomp_cyl_mb;
145 u_char precomp_cyl_lb;
146 u_char current_cyl_ub; /* reduced current start */
147 u_char current_cyl_mb;
148 u_char current_cyl_lb;
149 u_short step_rate; /* stepping motor rate */
150 u_char landing_cyl_ub; /* landing zone */
151 u_char landing_cyl_mb;
152 u_char landing_cyl_lb;
153 u_char _r2;
154 u_char _r3;
155 u_char _r4;
156 };
157
158 /*
159 * cache parameters
160 */
161
162 struct ccs_cache
163 {
164 u_char _r1 : 2; /* reserved */
165 u_char page_code : 6; /* page code */
166 u_char page_length; /* page length */
167 u_char mode; /* cache control byte */
168 u_char threshold; /* prefetch threshold */
169 u_char max_prefetch; /* maximum prefetch size */
170 u_char max_multiplier; /* maximum prefetch multiplier */
171 u_char min_prefetch; /* minimum prefetch size */
172 u_char min_multiplier; /* minimum prefetch multiplier */
173 u_char _r2[8];
174 };
175
176 /*
177 * CDROM IOCTL structures
178 */
179
180 struct cdrom_msf
181 {
182 u_char cdmsf_min0; /* start minute */
183 u_char cdmsf_sec0; /* start second */
184 u_char cdmsf_frame0; /* start frame */
185 u_char cdmsf_min1; /* end minute */
186 u_char cdmsf_sec1; /* end second */
187 u_char cdmsf_frame1; /* end frame */
188 };
189
190 struct cdrom_ti
191 {
192 u_char cdti_trk0; /* start track */
193 u_char cdti_ind0; /* start index */
194 u_char cdti_trk1; /* end track */
195 u_char cdti_ind1; /* end index */
196 };
197
198 struct cdrom_tochdr
199 {
200 u_char cdth_trk0; /* start track */
201 u_char cdth_trk1; /* end track */
202 };
203
204 struct cdrom_tocentry
205 {
206 u_char cdte_track;
207 u_char cdte_adr :4;
208 u_char cdte_ctrl :4;
209 u_char cdte_format;
210 union
211 {
212 struct
213 {
214 u_char minute;
215 u_char second;
216 u_char frame;
217 } msf;
218 int lba;
219 } cdte_addr;
220 u_char cdte_datamode;
221 };
222
223 /*
224 * CD-ROM address types (cdrom_tocentry.cdte_format)
225 */
226
227 #define CDROM_LBA 0x01
228 #define CDROM_MSF 0x02
229
230 /*
231 * bit to tell whether track is data or audio
232 */
233
234 #define CDROM_DATA_TRACK 0x04
235
236 /*
237 * The leadout track is always 0xAA, regardless of # of tracks on disc
238 */
239
240 #define CDROM_LEADOUT 0xAA
241
242 struct cdrom_subchnl
243 {
244 u_char cdsc_format;
245 u_char cdsc_audiostatus;
246 u_char cdsc_adr: 4;
247 u_char cdsc_ctrl: 4;
248 u_char cdsc_trk;
249 u_char cdsc_ind;
250 union
251 {
252 struct
253 {
254 u_char minute;
255 u_char second;
256 u_char frame;
257 } msf;
258 int lba;
259 } cdsc_absaddr;
260 union
261 {
262 struct
263 {
264 u_char minute;
265 u_char second;
266 u_char frame;
267 } msf;
268 int lba;
269 } cdsc_reladdr;
270 };
271
272 /*
273 * return value from READ SUBCHANNEL DATA
274 */
275
276 #define CDROM_AUDIO_INVALID 0x00 /* audio status not supported */
277 #define CDROM_AUDIO_PLAY 0x11 /* audio play operation in progress */
278 #define CDROM_AUDIO_PAUSED 0x12 /* audio play operation paused */
279 #define CDROM_AUDIO_COMPLETED 0x13 /* audio play successfully completed */
280 #define CDROM_AUDIO_ERROR 0x14 /* audio play stopped due to error */
281 #define CDROM_AUDIO_NO_STATUS 0x15 /* no current audio status to return */
282
283 struct cdrom_volctrl
284 {
285 u_char channel0;
286 u_char channel1;
287 u_char channel2;
288 u_char channel3;
289 };
290
291 struct cdrom_read
292 {
293 int cdread_lba;
294 caddr_t cdread_bufaddr;
295 int cdread_buflen;
296 };
297
298 #ifdef FIVETWELVE
299 #define CDROM_MODE1_SIZE 512
300 #else
301 #define CDROM_MODE1_SIZE 2048
302 #endif FIVETWELVE
303 #define CDROM_MODE2_SIZE 2336
304
305 /*
306 * CD-ROM IOCTL commands
307 */
308
309 #define CDROMPAUSE 0x5301 /* pause */
310 #define CDROMRESUME 0x5302 /* resume */
311
312 #define CDROMPLAYMSF 0x5303 /* (stuct cdrom_msf) */
313 /* SCMD_PLAY_AUDIO_MSF */
314
315 #define CDROMPLAYTRKIND 0x5304 /* (struct cdrom_ti) */
316 /* SCMD_PLAY_AUDIO_TI */
317
318 #define CDROMREADTOCHDR 0x5305 /* (struct cdrom_tochdr) */
319 /* read the TOC header */
320 #define CDROMREADTOCENTRY 0x5306 /* (struct cdrom_tocentry) */
321 /* read a TOC entry */
322
323 #define CDROMSTOP 0x5307 /* stop the drive motor */
324 #define CDROMSTART 0x5308 /* turn the motor on */
325
326 #define CDROMEJECT 0x5309 /* eject CD-ROM media */
327
328 #define CDROMVOLCTRL 0x530a /* (struct cdrom_volctrl) */
329 /* vlume control */
330
331 #define CDROMSUBCHNL 0x530b /* (struct cdrom_subchnl) */
332 /* read sub-channel data */
333
334 #define CDROMREADMODE2 0x530c /* (struct cdrom_read) */
335 /* read type-2 data (not suppt) */
336
337 #define CDROMREADMODE1 0x530d /* (struct cdrom_read) */
338 /* read type-1 data */
339
340 #endif _LINUX_CDROM_H
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*/