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1.1 root 1: /*
2: * Written by Julian Elischer ([email protected])
3: * for TRW Financial Systems.
4: *
5: * TRW Financial Systems, in accordance with their agreement with Carnegie
6: * Mellon University, makes this software available to CMU to distribute
7: * or use in any manner that they see fit as long as this message is kept with
8: * the software. For this reason TFS also grants any other persons or
9: * organisations permission to use or modify this software.
10: *
11: * TFS supplies this software to be publicly redistributed
12: * on the understanding that TFS is not responsible for the correct
13: * functioning of this software in any circumstances.
14: *
15: *
16: * PATCHES MAGIC LEVEL PATCH THAT GOT US HERE
17: * -------------------- ----- ----------------------
18: * CURRENT PATCH LEVEL: 1 00098
19: * -------------------- ----- ----------------------
20: *
21: * 16 Feb 93 Julian Elischer ADDED for SCSI system
22: */
23:
24:
25:
26: /*
27: * Ported to run under 386BSD by Julian Elischer ([email protected]) Sept 1992
28: */
29:
30: /*
31: * SCSI command format
32: */
33:
34: struct scsi_read_capacity_cd
35: {
36: u_char op_code;
37: u_char :5;
38: u_char lun:3;
39: u_char addr_3; /* Most Significant */
40: u_char addr_2;
41: u_char addr_1;
42: u_char addr_0; /* Least Significant */
43: u_char unused[3];
44: u_char link:1;
45: u_char flag:1;
46: u_char :6;
47: };
48:
49: struct scsi_pause
50: {
51: u_char op_code;
52: u_char :5;
53: u_char lun:3;
54: u_char unused[6];
55: u_char resume:1;
56: u_char :7;
57: u_char link:1;
58: u_char flag:1;
59: u_char :6;
60: };
61: #define PA_PAUSE 1
62: #define PA_RESUME 0
63:
64: struct scsi_play_msf
65: {
66: u_char op_code;
67: u_char :5;
68: u_char lun:3;
69: u_char unused;
70: u_char start_m;
71: u_char start_s;
72: u_char start_f;
73: u_char end_m;
74: u_char end_s;
75: u_char end_f;
76: u_char link:1;
77: u_char flag:1;
78: u_char :6;
79: };
80:
81: struct scsi_play_track
82: {
83: u_char op_code;
84: u_char :5;
85: u_char lun:3;
86: u_char unused[2];
87: u_char start_track;
88: u_char start_index;
89: u_char unused1;
90: u_char end_track;
91: u_char end_index;
92: u_char link:1;
93: u_char flag:1;
94: u_char :6;
95: };
96:
97: struct scsi_play
98: {
99: u_char op_code;
100: u_char reladdr:1;
101: u_char :4;
102: u_char lun:3;
103: u_char blk_addr[4];
104: u_char unused;
105: u_char xfer_len[2];
106: u_char link:1;
107: u_char flag:1;
108: u_char :6;
109: };
110:
111: struct scsi_play_big
112: {
113: u_char op_code;
114: u_char reladdr:1;
115: u_char :4;
116: u_char lun:3;
117: u_char blk_addr[4];
118: u_char xfer_len[4];
119: u_char unused;
120: u_char link:1;
121: u_char flag:1;
122: u_char :6;
123: };
124:
125: struct scsi_play_rel_big
126: {
127: u_char op_code;
128: u_char reladdr:1;
129: u_char :4;
130: u_char lun:3;
131: u_char blk_addr[4];
132: u_char xfer_len[4];
133: u_char track;
134: u_char link:1;
135: u_char flag:1;
136: u_char :6;
137: };
138:
139: struct scsi_read_header
140: {
141: u_char op_code;
142: u_char :1;
143: u_char msf:1;
144: u_char :3;
145: u_char lun:3;
146: u_char blk_addr[4];
147: u_char unused;
148: u_char data_len[2];
149: u_char link:1;
150: u_char flag:1;
151: u_char :6;
152: };
153:
154: struct scsi_read_subchannel
155: {
156: u_char op_code;
157: u_char :1;
158: u_char msf:1;
159: u_char :3;
160: u_char lun:3;
161: u_char :6;
162: u_char subQ:1;
163: u_char :1;
164: u_char subchan_format;
165: u_char unused[2];
166: u_char track;
167: u_char data_len[2];
168: u_char link:1;
169: u_char flag:1;
170: u_char :6;
171: };
172:
173: struct scsi_read_toc
174: {
175: u_char op_code;
176: u_char :1;
177: u_char msf:1;
178: u_char :3;
179: u_char lun:3;
180: u_char unused[4];
181: u_char from_track;
182: u_char data_len[2];
183: u_char link:1;
184: u_char flag:1;
185: u_char :6;
186: };
187: ;
188:
189: struct scsi_read_cd_capacity
190: {
191: u_char op_code;
192: u_char :5;
193: u_char lun:3;
194: u_char addr_3; /* Most Significant */
195: u_char addr_2;
196: u_char addr_1;
197: u_char addr_0; /* Least Significant */
198: u_char unused[3];
199: u_char link:1;
200: u_char flag:1;
201: u_char :6;
202: };
203:
204: /*
205: * Opcodes
206: */
207:
208: #define READ_CD_CAPACITY 0x25 /* slightly different from disk */
209: #define READ_SUBCHANNEL 0x42 /* cdrom read Subchannel */
210: #define READ_TOC 0x43 /* cdrom read TOC */
211: #define READ_HEADER 0x44 /* cdrom read header */
212: #define PLAY 0x45 /* cdrom play 'play audio' mode */
213: #define PLAY_MSF 0x47 /* cdrom play Min,Sec,Frames mode */
214: #define PLAY_TRACK 0x48 /* cdrom play track/index mode */
215: #define PLAY_TRACK_REL 0x49 /* cdrom play track/index mode */
216: #define PAUSE 0x4b /* cdrom pause in 'play audio' mode */
217: #define PLAY_BIG 0xa5 /* cdrom pause in 'play audio' mode */
218: #define PLAY_TRACK_REL_BIG 0xa9 /* cdrom play track/index mode */
219:
220:
221: struct cd_inquiry_data /* in case there is some special info */
222: {
223: u_char device_type:5;
224: u_char device_qualifier:3;
225: u_char dev_qual2:7;
226: u_char removable:1;
227: u_char ansii_version:3;
228: u_char :5;
229: u_char response_format;
230: u_char additional_length;
231: u_char unused[2];
232: u_char :3;
233: u_char can_link:1;
234: u_char can_sync:1;
235: u_char :3;
236: char vendor[8];
237: char product[16];
238: char revision[4];
239: u_char extra[8];
240: };
241:
242: struct scsi_read_cd_cap_data
243: {
244: u_char addr_3; /* Most significant */
245: u_char addr_2;
246: u_char addr_1;
247: u_char addr_0; /* Least significant */
248: u_char length_3; /* Most significant */
249: u_char length_2;
250: u_char length_1;
251: u_char length_0; /* Least significant */
252: };
253:
254: union cd_pages
255: {
256: #define AUDIO_PAGE 0x0e
257: struct audio_page
258: {
259: u_char page_code:6;
260: u_char :1;
261: u_char ps:1;
262: u_char param_len;
263: u_char :1;
264: u_char sotc:1;
265: u_char immed:1;
266: u_char :5;
267: u_char unused[2];
268: u_char format_lba:4;
269: u_char :3;
270: u_char apr_valid:1;
271: u_char lb_per_sec[2];
272: struct port_control
273: {
274: u_char channels:4;
275: #define CHANNEL_0 1
276: #define CHANNEL_1 2
277: #define CHANNEL_2 4
278: #define CHANNEL_3 8
279: #define LEFT_CHANNEL CHANNEL_0
280: #define RIGHT_CHANNEL CHANNEL_1
281: u_char :4;
282: u_char volume;
283: } port[4];
284: #define LEFT_PORT 0
285: #define RIGHT_PORT 1
286: }audio;
287: };
288:
289: struct cd_mode_data
290: {
291: struct scsi_mode_header header;
292: struct blk_desc blk_desc;
293: union cd_pages page;
294: };
295:
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