File: plat_sun.c

package info (click to toggle)
workman 1.3a-8
  • links: PTS
  • area: main
  • in suites: hamm
  • size: 944 kB
  • ctags: 745
  • sloc: ansic: 9,810; makefile: 137; sh: 27
file content (680 lines) | stat: -rw-r--r-- 13,504 bytes parent folder | download
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
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
/*
 * @(#)plat_sun.c	1.11	04 Jun 1995
 *
 * Sun-specific drive control routines.
 */
static char *ident = "@(#)plat_sun.c	1.11 04 Jun 1995";

#ifdef sun

#include <errno.h>
#include <stdio.h>
#include <sys/types.h>
#include <fcntl.h>
#include <string.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>

#include <ustat.h>
#include <unistd.h>
#include <signal.h>
#ifdef solbourne
# include <mfg/dklabel.h>
# include <mfg/dkio.h>
# include <sys/unistd.h>
# include <dev/srvar.h>
#else /* A real Sun */
# ifdef SYSV
#  include <stdlib.h>
#  include <sys/cdio.h>
#  include <sys/scsi/impl/uscsi.h>
# else
#  include <sys/buf.h>
#  include <sun/dkio.h>
#  include <scsi/targets/srdef.h>
#  include <scsi/impl/uscsi.h>
#  include <scsi/generic/commands.h>
# endif
#endif

#include "struct.h"

void *malloc();
char *strchr();
char *realpath();

int	min_volume = 128;
int	max_volume = 255;

extern char	*cd_device;
extern int	intermittent_dev, keep_open;

/*
 * find_cdrom
 *
 * Determine the name of the CD-ROM device.
 *
 * Use the first of /vol/dev/aliases/cdrom0, /dev/rdsk/c0t6d0s2, and /dev/rsr0
 * that exists.  (Check for /vol/dev/aliases, not cdrom0, since it won't be
 * there if there's no CD in the drive.)  This is done so a single SunOS 4.x
 * binary can be used on any 4.x or higher Sun system.
 */
void
find_cdrom()
{
	if (access("/vol/dev/aliases", X_OK) == 0)
	{
		/* Volume manager.  Device might not be there. */
		intermittent_dev = 1;
		cd_device = "/vol/dev/aliases/cdrom0";
	}
	else if (access("/dev/rdsk/c0t6d0s2", F_OK) == 0)
	{
		/* Solaris 2.x w/o volume manager.  Run keep_cd_open(). */
		keep_open = 1;
		cd_device = "/dev/rdsk/c0t6d0s2";
	}
	else if (access("/dev/rsr0", F_OK) == 0)
		cd_device = "/dev/rsr0";
	else
	{
		fprintf(stderr, "Couldn't find a CD device!\n");
		exit(1);
	}
}

/*
 * Initialize the drive.  A no-op for the generic driver.
 */
int
gen_init(d)
	struct wm_drive	*d;
{
	codec_init();
	return (0);
}

/*
 * Get the number of tracks on the CD.
 */
int
gen_get_trackcount(d, tracks)
	struct wm_drive	*d;
	int		*tracks;
{
	struct cdrom_tochdr	hdr;

	if (ioctl(d->fd, CDROMREADTOCHDR, &hdr))
		return (-1);
	
	*tracks = hdr.cdth_trk1;
	return (0);
}

/*
 * Get the start time and mode (data or audio) of a track.
 */
int
gen_get_trackinfo(d, track, data, startframe)
	struct wm_drive	*d;
	int		track, *data, *startframe;
{
	struct cdrom_tocentry	entry;

	entry.cdte_track = track;
	entry.cdte_format = CDROM_MSF;

	if (ioctl(d->fd, CDROMREADTOCENTRY, &entry))
		return (-1);
	
	*startframe =	entry.cdte_addr.msf.minute * 60 * 75 +
			entry.cdte_addr.msf.second * 75 +
			entry.cdte_addr.msf.frame;
	*data = entry.cdte_ctrl & CDROM_DATA_TRACK ? 1 : 0;
	
	return (0);
}

/*
 * Get the number of frames on the CD.
 */
int
gen_get_cdlen(d, frames)
	struct wm_drive	*d;
	int		*frames;
{
	int		tmp;

	return (gen_get_trackinfo(d, CDROM_LEADOUT, &tmp, frames));
}


/* Alarm signal handler. */
static void do_nothing(x) int x; { x++; }

/*
 * Get the current status of the drive: the current play mode, the absolute
 * position from start of disc (in frames), and the current track and index
 * numbers if the CD is playing or paused.
 */
int
gen_get_drive_status(d, oldmode, mode, pos, track, index)
	struct wm_drive	*d;
	enum cd_modes	oldmode, *mode;
	int		*pos, *track, *index;
{
	struct cdrom_subchnl		sc;
	struct itimerval		old_timer, new_timer;
	struct sigaction		old_sig, new_sig;

	/* If we can't get status, the CD is ejected, so default to that. */
	*mode = EJECTED;

	/* Is the device open? */
	if (d->fd < 0)
	{
		switch (wmcd_open(d)) {
		case -1:	/* error */
			return (-1);

		case 1:		/* retry */
			return (0);
		}
	}

	/*
	 * Solaris 2.2 hangs on this ioctl if someone else ejects the CD.
	 * So we schedule a signal to break out of the hang if the call
	 * takes an unreasonable amount of time.  The signal handler and
	 * timer are restored immediately to avoid interfering with XView.
	 */
	if (intermittent_dev)
	{
		/*
		 * First clear out the timer so XView's signal doesn't happen
		 * while we're diddling with the signal handler.
		 */
		timerclear(&new_timer.it_interval);
		timerclear(&new_timer.it_value);
		setitimer(ITIMER_REAL, &new_timer, &old_timer);

		/*
		 * Now install the no-op signal handler.
		 */
		new_sig.sa_handler = do_nothing;
		memset(&new_sig.sa_mask, 0, sizeof(new_sig.sa_mask));
		new_sig.sa_flags = 0;
		if (sigaction(SIGALRM, &new_sig, &old_sig))
			perror("sigaction");

		/*
		 * And finally, set the timer.
		 */
		new_timer.it_value.tv_sec = 2;
		setitimer(ITIMER_REAL, &new_timer, NULL);
	}

	sc.cdsc_format = CDROM_MSF;

	if (ioctl(d->fd, CDROMSUBCHNL, &sc))
	{
		if (intermittent_dev)
		{
			sigaction(SIGALRM, &old_sig, NULL);
			setitimer(ITIMER_REAL, &old_timer, NULL);

			/* If the device can disappear, let it do so. */
			close(d->fd);
			d->fd = -1;
		}

		return (0);
	}

	if (intermittent_dev)
	{
		sigaction(SIGALRM, &old_sig, NULL);
		setitimer(ITIMER_REAL, &old_timer, NULL);
	}

	switch (sc.cdsc_audiostatus) {
	case CDROM_AUDIO_PLAY:
		*mode = PLAYING;
		*track = sc.cdsc_trk;
		*index = sc.cdsc_ind;
		*pos = sc.cdsc_absaddr.msf.minute * 60 * 75 +
			sc.cdsc_absaddr.msf.second * 75 +
			sc.cdsc_absaddr.msf.frame;
		break;

	case CDROM_AUDIO_PAUSED:
	case CDROM_AUDIO_INVALID:
	case CDROM_AUDIO_NO_STATUS:
		if (oldmode == PLAYING || oldmode == PAUSED)
		{
			*mode = PAUSED;
			*track = sc.cdsc_trk;
			*index = sc.cdsc_ind;
			*pos = sc.cdsc_absaddr.msf.minute * 60 * 75 +
				sc.cdsc_absaddr.msf.second * 75 +
				sc.cdsc_absaddr.msf.frame;
		}
		else
			*mode = STOPPED;
		break;

	/* CD ejected manually during play. */
	case CDROM_AUDIO_ERROR:
		break;

	case CDROM_AUDIO_COMPLETED:
		*mode = TRACK_DONE; /* waiting for next track. */
		break;

	default:
		*mode = UNKNOWN;
		break;
	}

	return (0);
}

/*
 * Set the volume level for the left and right channels.  Their values
 * range from 0 to 100.
 */
int
gen_set_volume(d, left, right)
	struct wm_drive	*d;
	int		left, right;
{
	struct cdrom_volctrl v;

	left = (left * (max_volume - min_volume)) / 100 + min_volume;
	right = (right * (max_volume - min_volume)) / 100 + min_volume;

	v.channel0 = left < 0 ? 0 : left > 255 ? 255 : left;
	v.channel1 = right < 0 ? 0 : right > 255 ? 255 : right;

	return (ioctl(d->fd, CDROMVOLCTRL, &v));
}

/*
 * Pause the CD.
 */
int
gen_pause(d)
	struct wm_drive	*d;
{
	codec_stop();
	return (ioctl(d->fd, CDROMPAUSE));
}

/*
 * Resume playing the CD (assuming it was paused.)
 */
int
gen_resume(d)
	struct wm_drive	*d;
{
	codec_start();
	return (ioctl(d->fd, CDROMRESUME));
}

/*
 * Stop the CD.
 */
int
gen_stop(d)
	struct wm_drive *d;
{
	codec_stop();
	return (ioctl(d->fd, CDROMSTOP));
}

/*
 * Play the CD from one position to another (both in frames.)
 */
int
gen_play(d, start, end)
	struct wm_drive	*d;
	int		start, end;
{
	struct cdrom_msf		msf;

	msf.cdmsf_min0 = start / (60*75);
	msf.cdmsf_sec0 = (start % (60*75)) / 75;
	msf.cdmsf_frame0 = start % 75;
	msf.cdmsf_min1 = end / (60*75);
	msf.cdmsf_sec1 = (end % (60*75)) / 75;
	msf.cdmsf_frame1 = end % 75;

	codec_start();
	if (ioctl(d->fd, CDROMSTART))
		return (-1);
	if (ioctl(d->fd, CDROMPLAYMSF, &msf))
		return (-2);
	
	return (0);
}

/*
 * Eject the current CD, if there is one.
 */
int
gen_eject(d)
	struct wm_drive	*d;
{
	struct stat	stbuf;
	struct ustat	ust;

	if (fstat(d->fd, &stbuf) != 0)
		return (-2);

	/* Is this a mounted filesystem? */
	if (ustat(stbuf.st_rdev, &ust) == 0)
		return (-3);

	if (ioctl(d->fd, CDROMEJECT))
		return (-1);

	/* Close the device if it needs to vanish. */
	if (intermittent_dev)
	{
		close(d->fd);
		d->fd = -1;
	}

	return (0);
}

/*
 * Close tray
 * Dummie function only, return error
 */
int
gen_closetray(d)
	struct wm_drive *d;
{
	return(-1);
}

/*
 * Keep the CD open all the time.
 */
void
keep_cd_open()
{
	int	fd;
	struct flock	fl;
	extern	end;

	for (fd = 0; fd < 256; fd++)
		close(fd);

	if (fork())
		exit(0);

	if ((fd = open("/tmp/cd.lock", O_RDWR | O_CREAT, 0666)) < 0)
		exit(0);
	fl.l_type = F_WRLCK;
	fl.l_whence = 0;
	fl.l_start = 0;
	fl.l_len = 0;
	if (fcntl(fd, F_SETLK, &fl) < 0)
		exit(0);

	if (open(cd_device, 0) >= 0)
	{
		brk(&end);
		pause();
	}

	exit(0);
}

/*
 * Read the initial volume from the drive, if available.  Each channel
 * ranges from 0 to 100, with -1 indicating data not available.
 */
int
gen_get_volume(d, left, right)
	struct wm_drive	*d;
	int		*left, *right;
{
	*left = *right = -1;

	return (wm_scsi2_get_volume(d, left, right));
}

#ifndef solbourne
/*
 * Send an arbitrary SCSI command out the bus and optionally wait for
 * a reply if "retbuf" isn't NULL.
 */
int
wm_scsi(d, cdb, cdblen, retbuf, retbuflen, getreply)
	struct wm_drive	*d;
	unsigned char	*cdb;
	int		cdblen;
	void		*retbuf;
	int		retbuflen;
	int		getreply;
{
	char			x;
	struct uscsi_cmd	cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.uscsi_cdb = (void *) cdb;
	cmd.uscsi_cdblen = cdblen;
	cmd.uscsi_bufaddr = retbuf ? retbuf : (void *)&x;
	cmd.uscsi_buflen = retbuf ? retbuflen : 0;
	cmd.uscsi_flags = USCSI_ISOLATE | USCSI_SILENT;
	if (getreply)
		cmd.uscsi_flags |= USCSI_READ;
	
	if (ioctl(d->fd, USCSICMD, &cmd))
		return (-1);
	
	if (cmd.uscsi_status)
		return (-1);
	
	return (0);
}
#else

int wm_scsi() { return (-1); }

#endif

/*
 * Open the CD device and figure out what kind of drive is attached.
 */
int
wmcd_open(d)
	struct wm_drive	*d;
{
	int		fd;
	static int	warned = 0;
	char		vendor[32], model[32], rev[32];

	if (cd_device == NULL)
		find_cdrom();

	if (d->fd >= 0)		/* Device already open? */
		return (0);
	
	d->fd = open(cd_device, 0);
	if (d->fd < 0)
	{
		/* Solaris 2.2 volume manager moves links around */
		if (errno == ENOENT && intermittent_dev)
			return (1);

		if (errno == EACCES)
		{
			if (!warned)
			{
				char	realname[MAXPATHLEN];

				if (realpath(cd_device, realname) == NULL)
				{
					perror("realpath");
					return (-1);
				}

				fprintf(stderr,
		"As root, please run\n\nchmod 666 %s\n\n%s\n", realname,
		"to give yourself permission to access the CD-ROM device.");
				warned++;
			}
		}
		else if (errno != ENXIO)
		{
			perror(cd_device);
			exit(1);
		}

		/* No CD in drive. */
		return (1);
	}

	if (warned)
	{
		warned = 0;
		fprintf(stderr, "Thank you.\n");
	}

	/* Now fill in the relevant parts of the wm_drive structure. */
	fd = d->fd;

	/* Can we figure out the drive type? */
	vendor[0] = model[0] = rev[0] = '\0';
	if (wm_scsi_get_drive_type(d, vendor, model, rev))
		if (errno == EPERM)
		{
			/*
			 * Solaris 2.4 seems to refuse to do USCSICMD ioctls
			 * when not running as root.  SunOS 4.x allows it
			 * as an unprivileged user, though.
			 */
			fprintf(stderr,
"Warning: WorkMan can't adapt itself to your drive unless it runs as root.\n");
		}
		else
		{
			fprintf(stderr,
"Warning: WorkMan couldn't determine drive type (not a SCSI drive?)\n");
		}

	*d = *(find_drive_struct(vendor, model, rev));
	about_set_drivetype(d->vendor, d->model, rev);
	d->fd = fd;

	(d->init)(d);

	return (0);
}

/*
 * The following code activates the internal CD audio passthrough on
 * SPARCstation 5 systems (and possibly others.)
 *
 * Thanks to <stevep@ctc.ih.att.com>.
 */

#if !defined(SYSV) || !defined(CODEC)
/* not solaris, so don't do anything real */
codec_init() { return 0; }
codec_start() { return 0; }
codec_stop() { return 0; }
#else

#include <sys/ioctl.h>
#include <sys/audioio.h>

#ifndef AUDIO_INTERNAL_CD_IN
#define AUDIO_INTERNAL_CD_IN	0x4
#endif

static char* devname = 0;
static char* ctlname = 0;
static int ctl_fd = -1;

codec_init()
{
register int i;
char* ctlname;
audio_info_t foo;
audio_device_t aud_dev;

    if (!(devname = getenv("AUDIODEV"))) devname = "/dev/audio";
    ctlname = strcat(strcpy(malloc(strlen(devname) + 4), devname), "ctl");
    if ((ctl_fd = open(ctlname, O_WRONLY, 0)) < 0) {
	perror(ctlname);
	return -1;
    }
    if (ioctl(ctl_fd, AUDIO_GETDEV, &aud_dev) < 0) {
	close(ctl_fd);
	ctl_fd = -1;
	return -1;
    }
    if (strcmp(aud_dev.name, "SUNW,CS4231")) {
	close(ctl_fd);
	ctl_fd = -1;
	return 0;					/* but it's okay */
    }
    AUDIO_INITINFO(&foo);
    foo.record.port = AUDIO_INTERNAL_CD_IN;
    foo.monitor_gain = AUDIO_MAX_GAIN;
    ioctl(ctl_fd, AUDIO_SETINFO, &foo);
    return 0;
}

static
kick_codec()
{
audio_info_t foo;
int dev_fd;
int retval = 0;

    if ((dev_fd = open(devname, O_WRONLY, 0)) < 0) {
	perror(devname);
	return -1;
    }
    AUDIO_INITINFO(&foo);
    foo.play.sample_rate = 44100;
    foo.play.channels = 2;
    foo.play.precision = 16;
    foo.play.encoding = AUDIO_ENCODING_LINEAR;
    if ((retval = ioctl(dev_fd, AUDIO_SETINFO, &foo)) < 0) perror(devname);
    close(dev_fd);
    return retval;
}

codec_start()
{
audio_info_t foo;

    if (ctl_fd < 0) return 0;
    if (ioctl(ctl_fd, AUDIO_GETINFO, &foo) < 0) return -1;

    if (foo.play.channels != 2) return kick_codec();
    if (foo.play.encoding != AUDIO_ENCODING_LINEAR) return kick_codec();
    if (foo.play.precision != 16) return kick_codec();
    if (foo.play.sample_rate != 44100) return kick_codec();
    if (foo.record.channels != 2) return kick_codec();
    if (foo.record.encoding != AUDIO_ENCODING_LINEAR) return kick_codec();
    if (foo.record.precision != 16) return kick_codec();
    if (foo.record.sample_rate != 44100) return kick_codec();
    if (foo.monitor_gain != AUDIO_MAX_GAIN) return kick_codec();
    if (foo.record.port != AUDIO_INTERNAL_CD_IN) return kick_codec();

    return 0;
}

codec_stop() { return 0; }

#endif
#endif