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
|
/* "commands.c" copyright 1994 thomas insel
* copyright 1995 sven oliver moll */
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/types.h>
#include <fcntl.h>
#include <string.h>
#ifdef sun
# include <sundev/srreg.h>
#elif defined linux
# include <linux/cdrom.h>
#else
# error Please fix includes for your system in commands.c
#endif
#include "config.h"
#include "commands.h"
#include "hardware.h"
#include "main.h"
/* if trk0 is -1, skip back
* if trk0 is -2, skip forward
*/
void do_play(char *progname, int cdfile, int trk0, int trk1)
{
struct cdrom_tochdr tochdr;
struct cdrom_ti ti;
struct cdrom_subchnl subchnl;
#ifdef DEBUG
fprintf (stderr,"do_play: called, name=%s, cdfile=%d, trk0=%d, trk1=%d\n",
progname, cdfile, trk0, trk1);
#endif
subchnl.cdsc_format = CDROM_MSF;
if ( (( trk0 == 0 ) && ( trk1 == 0 )) || ( trk0 < 0 ) )
{
#ifdef DEBUG
fprintf (stderr, "do_play: trk0=%d\n", trk0);
#endif
if ( ioctl(cdfile, CDROMSUBCHNL, &subchnl) == -1 )
{
fprintf(stderr, "%s: ioctl cdromsubchnl\n", progname);
EXIT(1);
}
}
/* if starting play.... */
if ( ( trk0 == 0 ) && ( trk1 == 0 ) )
{
#ifdef DEBUG
fprintf (stderr, "do_play: trk[0.1]==0, status=%s\n",
(subchnl.cdsc_audiostatus == CDROM_AUDIO_PAUSED)?
"PAUSED":"PLAY");
#endif
/* subchannel status returns PLAY, PAUSED, COMPLETED, or none */
switch ( subchnl.cdsc_audiostatus ) {
case CDROM_AUDIO_PAUSED:
if ( ioctl(cdfile, CDROMRESUME) == -1 ) {
fprintf(stderr, "%s: ioctl cdromresume\n", progname);
EXIT(1);
}
return;
case CDROM_AUDIO_PLAY:
trk0=subchnl.cdsc_trk;
break;
case CDROM_AUDIO_COMPLETED: /* WWH added */
trk0=1;
break;
#ifdef USE_THIS
default:
fprintf(stderr, "%s: error subchnl=%d\n",
progname, subchnl.cdsc_audiostatus);
EXIT(1);
#endif
}
}
if ( ioctl(cdfile, CDROMREADTOCHDR, &tochdr) == -1 )
{
fprintf(stderr, "%s: ioctl cdromreadtochdr\n", progname);
EXIT(1);
}
/* handle previous and next track */
if ( trk0 < 0 )
{
if ( trk1 == 0 )
trk1=1;
switch (trk0)
{
case SKIPBACK:
trk1=subchnl.cdsc_trk-trk1;
break;
case SKIPFORWARD:
trk1=subchnl.cdsc_trk+trk1;
}
if ((trk1 < tochdr.cdth_trk0) || (trk1 > tochdr.cdth_trk1))
trk1=1;
ti.cdti_trk0 = trk1;
ti.cdti_trk1 = tochdr.cdth_trk1;
}
else
{
if ( trk0 )
ti.cdti_trk0 = trk0;
else
ti.cdti_trk0 = tochdr.cdth_trk0;
if ( trk1 )
ti.cdti_trk1 = trk1;
else
ti.cdti_trk1 = tochdr.cdth_trk1;
}
ti.cdti_ind0 = 1;
ti.cdti_ind1 = 99;
/* check range */
#ifdef DEBUG
fprintf (stderr, "do_play: ti.cdti_trk0=%d, ti.cdti_trk1=%d\n",
ti.cdti_trk0, ti.cdti_trk1);
#endif
#ifndef SCSI
if ( ioctl(cdfile, CDROMPLAYTRKIND, &ti) == -1 )
{
fprintf(stderr, "%s: ioctl cdromplaytrkind\n", progname);
EXIT(1);
}
#else
/* SCSI - convert track index into MSF format */
{
cdhw_t *hw;
struct cdrom_msf msf;
int i;
hw = read_hw(progname, cdfile);
if (hw == NULL)
EXIT(1);
if ( ioctl(cdfile, CDROMSTART) == -1 ) {
fprintf(stderr, "%s: ioctl cdromstart\n", progname);
free_hw_buf(hw);
EXIT(1);
}
/* convert track offset to MSF format */
i=ti.cdti_trk0;
if (i >hw->tochdr.cdth_trk1) {
fprintf(stderr, "%s: invalid track %d\n", progname, i);
free_hw_buf(hw);
EXIT(1);
}
msf.cdmsf_min0=hw->tocentries[i-1].cdte_addr.msf.minute;
msf.cdmsf_sec0=hw->tocentries[i-1].cdte_addr.msf.second;
msf.cdmsf_frame0=hw->tocentries[i-1].cdte_addr.msf.frame;
i=ti.cdti_trk1;
if (i == 0)
i = hw->tochdr.cdth_trk1+1;
else
i++;
msf.cdmsf_min1=hw->tocentries[i-1].cdte_addr.msf.minute;
msf.cdmsf_sec1=hw->tocentries[i-1].cdte_addr.msf.second;
msf.cdmsf_frame1=hw->tocentries[i-1].cdte_addr.msf.frame;
free_hw_buf(hw);
if ( ioctl(cdfile, CDROMPLAYMSF, &msf) == -1 ) {
fprintf(stderr, "%s: ioctl cdrommsf\n", progname);
EXIT(1);
}
}
#endif
}
void do_pause(char *progname, int cdfile)
{
#ifdef DEBUG
fprintf (stderr,"do_pause: called, name=%s, cdfile=%d,\n",
progname, cdfile);
#endif
if ( ioctl(cdfile, CDROMPAUSE) == -1 )
{
fprintf(stderr, "%s: ioctl cdrompause\n", progname);
EXIT(1);
}
}
void do_stop(char *progname, int cdfile)
{
#ifdef DEBUG
fprintf (stderr,"do_stop: called, name=%s, cdfile=%d,\n",
progname, cdfile);
#endif
if ( ioctl(cdfile, CDROMSTOP) == -1 )
{
fprintf(stderr, "%s: ioctl cdromstop\n", progname);
EXIT(1);
}
}
void do_eject(char *progname, int cdfile)
{
#ifdef DEBUG
fprintf (stderr,"do_eject: called, name=%s, cdfile=%d,\n",
progname, cdfile);
#endif
if ( ioctl(cdfile, CDROMEJECT) == -1 )
{
fprintf(stderr, "%s: ioctl cdromeject\n", progname);
EXIT(1);
}
}
void do_reset(char *progname, int cdfile)
{
#ifdef DEBUG
fprintf (stderr,"do_reset: called, name=%s, cdfile=%d,\n",
progname, cdfile);
#endif
if ( ioctl(cdfile, CDROMRESET) == -1 )
{
fprintf(stderr, "%s: ioctl cdromreset\n", progname);
EXIT(1);
}
if ( ioctl(cdfile, CDROMSTART) == -1 )
{
fprintf(stderr, "%s: ioctl cdromstart\n", progname);
EXIT(1);
}
}
|
