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1.81 ! ratchov 1: /* $OpenBSD: dev.c,v 1.80 2021/01/28 11:06:58 ratchov Exp $ */
1.1 ratchov 2: /*
3: * Copyright (c) 2008-2012 Alexandre Ratchov <alex@caoua.org>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #include <stdio.h>
18: #include <string.h>
19:
20: #include "abuf.h"
21: #include "defs.h"
22: #include "dev.h"
23: #include "dsp.h"
24: #include "siofile.h"
25: #include "midi.h"
1.36 ratchov 26: #include "opt.h"
1.1 ratchov 27: #include "sysex.h"
28: #include "utils.h"
29:
1.14 ratchov 30: void zomb_onmove(void *);
1.25 ratchov 31: void zomb_onvol(void *);
1.1 ratchov 32: void zomb_fill(void *);
33: void zomb_flush(void *);
34: void zomb_eof(void *);
35: void zomb_exit(void *);
36:
1.7 ratchov 37: void dev_log(struct dev *);
38: void dev_midi_qfr(struct dev *, int);
39: void dev_midi_full(struct dev *);
40: void dev_midi_vol(struct dev *, struct slot *);
41: void dev_midi_master(struct dev *);
42: void dev_midi_slotdesc(struct dev *, struct slot *);
43: void dev_midi_dump(struct dev *);
1.1 ratchov 44: void dev_midi_imsg(void *, unsigned char *, int);
45: void dev_midi_omsg(void *, unsigned char *, int);
46: void dev_midi_fill(void *, int);
47: void dev_midi_exit(void *);
1.7 ratchov 48:
49: void dev_mix_badd(struct dev *, struct slot *);
50: void dev_mix_adjvol(struct dev *);
51: void dev_sub_bcopy(struct dev *, struct slot *);
52:
53: void dev_onmove(struct dev *, int);
54: void dev_master(struct dev *, unsigned int);
55: void dev_cycle(struct dev *);
56: int dev_getpos(struct dev *);
57: struct dev *dev_new(char *, struct aparams *, unsigned int, unsigned int,
58: unsigned int, unsigned int, unsigned int, unsigned int);
1.25 ratchov 59: void dev_adjpar(struct dev *, int, int, int);
1.59 ratchov 60: int dev_allocbufs(struct dev *);
1.7 ratchov 61: int dev_open(struct dev *);
1.59 ratchov 62: void dev_freebufs(struct dev *);
1.7 ratchov 63: void dev_close(struct dev *);
64: int dev_ref(struct dev *);
65: void dev_unref(struct dev *);
66: int dev_init(struct dev *);
67: void dev_done(struct dev *);
68: struct dev *dev_bynum(int);
69: void dev_del(struct dev *);
1.75 ratchov 70: void dev_setalt(struct dev *, unsigned int);
1.7 ratchov 71: unsigned int dev_roundof(struct dev *, unsigned int);
72: void dev_wakeup(struct dev *);
73: void dev_sync_attach(struct dev *);
74: void dev_mmcstart(struct dev *);
75: void dev_mmcstop(struct dev *);
76: void dev_mmcloc(struct dev *, unsigned int);
77:
1.64 ratchov 78: void slot_ctlname(struct slot *, char *, size_t);
1.7 ratchov 79: void slot_log(struct slot *);
80: void slot_del(struct slot *);
81: void slot_setvol(struct slot *, unsigned int);
82: void slot_ready(struct slot *);
1.35 ratchov 83: void slot_allocbufs(struct slot *);
84: void slot_freebufs(struct slot *);
1.12 ratchov 85: void slot_skip_update(struct slot *);
1.7 ratchov 86: void slot_write(struct slot *);
87: void slot_read(struct slot *);
1.12 ratchov 88: int slot_skip(struct slot *);
1.1 ratchov 89:
1.64 ratchov 90: void ctl_node_log(struct ctl_node *);
91: void ctl_log(struct ctl *);
92:
1.1 ratchov 93: struct midiops dev_midiops = {
94: dev_midi_imsg,
95: dev_midi_omsg,
96: dev_midi_fill,
97: dev_midi_exit
98: };
99:
100: struct slotops zomb_slotops = {
101: zomb_onmove,
102: zomb_onvol,
103: zomb_fill,
104: zomb_flush,
105: zomb_eof,
106: zomb_exit
107: };
108:
109: struct dev *dev_list = NULL;
110: unsigned int dev_sndnum = 0;
111:
112: void
113: dev_log(struct dev *d)
114: {
1.3 ratchov 115: #ifdef DEBUG
116: static char *pstates[] = {
117: "cfg", "ini", "run"
118: };
119: #endif
1.1 ratchov 120: log_puts("snd");
121: log_putu(d->num);
1.3 ratchov 122: #ifdef DEBUG
123: if (log_level >= 3) {
124: log_puts(" pst=");
125: log_puts(pstates[d->pstate]);
126: }
127: #endif
1.1 ratchov 128: }
129:
130: void
1.64 ratchov 131: slot_ctlname(struct slot *s, char *name, size_t size)
132: {
133: snprintf(name, size, "%s%u", s->name, s->unit);
134: }
135:
136: void
1.1 ratchov 137: slot_log(struct slot *s)
1.3 ratchov 138: {
1.64 ratchov 139: char name[CTL_NAMEMAX];
1.1 ratchov 140: #ifdef DEBUG
141: static char *pstates[] = {
142: "ini", "sta", "rdy", "run", "stp", "mid"
143: };
144: #endif
1.64 ratchov 145: slot_ctlname(s, name, CTL_NAMEMAX);
146: log_puts(name);
1.1 ratchov 147: #ifdef DEBUG
148: if (log_level >= 3) {
149: log_puts(" vol=");
150: log_putu(s->vol);
151: if (s->ops) {
152: log_puts(",pst=");
153: log_puts(pstates[s->pstate]);
154: }
155: }
156: #endif
157: }
158:
159: void
1.14 ratchov 160: zomb_onmove(void *arg)
1.1 ratchov 161: {
162: }
163:
164: void
1.25 ratchov 165: zomb_onvol(void *arg)
1.1 ratchov 166: {
167: }
168:
169: void
170: zomb_fill(void *arg)
171: {
172: }
173:
174: void
175: zomb_flush(void *arg)
176: {
177: }
178:
179: void
180: zomb_eof(void *arg)
181: {
182: struct slot *s = arg;
183:
184: #ifdef DEBUG
185: if (log_level >= 3) {
186: slot_log(s);
187: log_puts(": zomb_eof\n");
188: }
189: #endif
190: s->ops = NULL;
191: }
192:
193: void
194: zomb_exit(void *arg)
195: {
196: #ifdef DEBUG
197: struct slot *s = arg;
198:
199: if (log_level >= 3) {
200: slot_log(s);
201: log_puts(": zomb_exit\n");
202: }
203: #endif
204: }
205:
206: /*
207: * send a quarter frame MTC message
208: */
209: void
210: dev_midi_qfr(struct dev *d, int delta)
211: {
212: unsigned char buf[2];
213: unsigned int data;
214: int qfrlen;
215:
216: d->mtc.delta += delta * MTC_SEC;
217: qfrlen = d->rate * (MTC_SEC / (4 * d->mtc.fps));
218: while (d->mtc.delta >= qfrlen) {
219: switch (d->mtc.qfr) {
220: case 0:
221: data = d->mtc.fr & 0xf;
222: break;
223: case 1:
224: data = d->mtc.fr >> 4;
225: break;
226: case 2:
227: data = d->mtc.sec & 0xf;
228: break;
229: case 3:
230: data = d->mtc.sec >> 4;
231: break;
232: case 4:
233: data = d->mtc.min & 0xf;
234: break;
235: case 5:
236: data = d->mtc.min >> 4;
237: break;
238: case 6:
239: data = d->mtc.hr & 0xf;
240: break;
241: case 7:
242: data = (d->mtc.hr >> 4) | (d->mtc.fps_id << 1);
243: /*
244: * tick messages are sent 2 frames ahead
245: */
246: d->mtc.fr += 2;
247: if (d->mtc.fr < d->mtc.fps)
248: break;
249: d->mtc.fr -= d->mtc.fps;
250: d->mtc.sec++;
251: if (d->mtc.sec < 60)
252: break;
253: d->mtc.sec = 0;
254: d->mtc.min++;
255: if (d->mtc.min < 60)
256: break;
257: d->mtc.min = 0;
258: d->mtc.hr++;
259: if (d->mtc.hr < 24)
260: break;
261: d->mtc.hr = 0;
262: break;
263: default:
264: /* NOTREACHED */
265: data = 0;
266: }
267: buf[0] = 0xf1;
268: buf[1] = (d->mtc.qfr << 4) | data;
269: d->mtc.qfr++;
270: d->mtc.qfr &= 7;
271: midi_send(d->midi, buf, 2);
272: d->mtc.delta -= qfrlen;
273: }
274: }
275:
276: /*
277: * send a full frame MTC message
278: */
279: void
280: dev_midi_full(struct dev *d)
281: {
282: struct sysex x;
283: unsigned int fps;
284:
285: d->mtc.delta = MTC_SEC * dev_getpos(d);
286: if (d->rate % (30 * 4 * d->round) == 0) {
287: d->mtc.fps_id = MTC_FPS_30;
288: d->mtc.fps = 30;
289: } else if (d->rate % (25 * 4 * d->round) == 0) {
290: d->mtc.fps_id = MTC_FPS_25;
291: d->mtc.fps = 25;
292: } else {
293: d->mtc.fps_id = MTC_FPS_24;
294: d->mtc.fps = 24;
295: }
296: #ifdef DEBUG
297: if (log_level >= 3) {
298: dev_log(d);
299: log_puts(": mtc full frame at ");
300: log_puti(d->mtc.delta);
301: log_puts(", ");
302: log_puti(d->mtc.fps);
303: log_puts(" fps\n");
304: }
305: #endif
306: fps = d->mtc.fps;
307: d->mtc.hr = (d->mtc.origin / (MTC_SEC * 3600)) % 24;
308: d->mtc.min = (d->mtc.origin / (MTC_SEC * 60)) % 60;
309: d->mtc.sec = (d->mtc.origin / (MTC_SEC)) % 60;
310: d->mtc.fr = (d->mtc.origin / (MTC_SEC / fps)) % fps;
311:
312: x.start = SYSEX_START;
313: x.type = SYSEX_TYPE_RT;
1.8 ratchov 314: x.dev = SYSEX_DEV_ANY;
1.1 ratchov 315: x.id0 = SYSEX_MTC;
316: x.id1 = SYSEX_MTC_FULL;
317: x.u.full.hr = d->mtc.hr | (d->mtc.fps_id << 5);
318: x.u.full.min = d->mtc.min;
319: x.u.full.sec = d->mtc.sec;
320: x.u.full.fr = d->mtc.fr;
321: x.u.full.end = SYSEX_END;
322: d->mtc.qfr = 0;
323: midi_send(d->midi, (unsigned char *)&x, SYSEX_SIZE(full));
324: }
325:
326: /*
327: * send a volume change MIDI message
328: */
329: void
330: dev_midi_vol(struct dev *d, struct slot *s)
331: {
332: unsigned char msg[3];
333:
334: msg[0] = MIDI_CTL | (s - d->slot);
335: msg[1] = MIDI_CTL_VOL;
336: msg[2] = s->vol;
337: midi_send(d->midi, msg, 3);
338: }
339:
340: /*
341: * send a master volume MIDI message
342: */
343: void
344: dev_midi_master(struct dev *d)
345: {
1.70 ratchov 346: struct ctl *c;
347: unsigned int master, v;
1.1 ratchov 348: struct sysex x;
349:
1.70 ratchov 350: if (d->master_enabled)
351: master = d->master;
352: else {
353: master = 0;
354: for (c = d->ctl_list; c != NULL; c = c->next) {
355: if (c->type != CTL_NUM ||
356: strcmp(c->group, "") != 0 ||
357: strcmp(c->node0.name, "output") != 0 ||
358: strcmp(c->func, "level") != 0)
359: continue;
360: v = (c->curval * 127 + c->maxval / 2) / c->maxval;
361: if (master < v)
362: master = v;
363: }
364: }
365:
1.1 ratchov 366: memset(&x, 0, sizeof(struct sysex));
367: x.start = SYSEX_START;
368: x.type = SYSEX_TYPE_RT;
1.8 ratchov 369: x.dev = SYSEX_DEV_ANY;
1.1 ratchov 370: x.id0 = SYSEX_CONTROL;
371: x.id1 = SYSEX_MASTER;
372: x.u.master.fine = 0;
1.70 ratchov 373: x.u.master.coarse = master;
1.1 ratchov 374: x.u.master.end = SYSEX_END;
375: midi_send(d->midi, (unsigned char *)&x, SYSEX_SIZE(master));
376: }
377:
378: /*
379: * send a sndiod-specific slot description MIDI message
380: */
381: void
382: dev_midi_slotdesc(struct dev *d, struct slot *s)
383: {
384: struct sysex x;
385:
386: memset(&x, 0, sizeof(struct sysex));
387: x.start = SYSEX_START;
388: x.type = SYSEX_TYPE_EDU;
1.8 ratchov 389: x.dev = SYSEX_DEV_ANY;
1.1 ratchov 390: x.id0 = SYSEX_AUCAT;
391: x.id1 = SYSEX_AUCAT_SLOTDESC;
1.64 ratchov 392: if (*s->name != '\0')
393: slot_ctlname(s, (char *)x.u.slotdesc.name, SYSEX_NAMELEN);
1.1 ratchov 394: x.u.slotdesc.chan = s - d->slot;
395: x.u.slotdesc.end = SYSEX_END;
396: midi_send(d->midi, (unsigned char *)&x, SYSEX_SIZE(slotdesc));
397: }
398:
399: void
400: dev_midi_dump(struct dev *d)
401: {
402: struct sysex x;
403: struct slot *s;
404: int i;
405:
406: dev_midi_master(d);
407: for (i = 0, s = d->slot; i < DEV_NSLOT; i++, s++) {
408: dev_midi_slotdesc(d, s);
409: dev_midi_vol(d, s);
410: }
411: x.start = SYSEX_START;
412: x.type = SYSEX_TYPE_EDU;
1.8 ratchov 413: x.dev = SYSEX_DEV_ANY;
1.1 ratchov 414: x.id0 = SYSEX_AUCAT;
415: x.id1 = SYSEX_AUCAT_DUMPEND;
416: x.u.dumpend.end = SYSEX_END;
417: midi_send(d->midi, (unsigned char *)&x, SYSEX_SIZE(dumpend));
418: }
419:
420: void
421: dev_midi_imsg(void *arg, unsigned char *msg, int len)
422: {
423: #ifdef DEBUG
424: struct dev *d = arg;
425:
426: dev_log(d);
427: log_puts(": can't receive midi messages\n");
428: panic();
429: #endif
430: }
431:
432: void
433: dev_midi_omsg(void *arg, unsigned char *msg, int len)
434: {
435: struct dev *d = arg;
436: struct sysex *x;
437: unsigned int fps, chan;
438:
439: if ((msg[0] & MIDI_CMDMASK) == MIDI_CTL && msg[1] == MIDI_CTL_VOL) {
440: chan = msg[0] & MIDI_CHANMASK;
441: if (chan >= DEV_NSLOT)
442: return;
443: slot_setvol(d->slot + chan, msg[2]);
1.64 ratchov 444: dev_onval(d, CTLADDR_SLOT_LEVEL(chan), msg[2]);
1.1 ratchov 445: return;
446: }
447: x = (struct sysex *)msg;
448: if (x->start != SYSEX_START)
449: return;
450: if (len < SYSEX_SIZE(empty))
451: return;
452: switch (x->type) {
453: case SYSEX_TYPE_RT:
454: if (x->id0 == SYSEX_CONTROL && x->id1 == SYSEX_MASTER) {
1.64 ratchov 455: if (len == SYSEX_SIZE(master)) {
1.1 ratchov 456: dev_master(d, x->u.master.coarse);
1.70 ratchov 457: if (d->master_enabled) {
458: dev_onval(d, CTLADDR_MASTER,
459: x->u.master.coarse);
460: }
1.64 ratchov 461: }
1.1 ratchov 462: return;
463: }
464: if (x->id0 != SYSEX_MMC)
465: return;
466: switch (x->id1) {
467: case SYSEX_MMC_STOP:
468: if (len != SYSEX_SIZE(stop))
469: return;
470: if (log_level >= 2) {
471: dev_log(d);
472: log_puts(": mmc stop\n");
473: }
474: dev_mmcstop(d);
475: break;
476: case SYSEX_MMC_START:
477: if (len != SYSEX_SIZE(start))
478: return;
479: if (log_level >= 2) {
480: dev_log(d);
481: log_puts(": mmc start\n");
482: }
483: dev_mmcstart(d);
484: break;
485: case SYSEX_MMC_LOC:
486: if (len != SYSEX_SIZE(loc) ||
487: x->u.loc.len != SYSEX_MMC_LOC_LEN ||
488: x->u.loc.cmd != SYSEX_MMC_LOC_CMD)
489: return;
490: switch (x->u.loc.hr >> 5) {
491: case MTC_FPS_24:
492: fps = 24;
493: break;
494: case MTC_FPS_25:
495: fps = 25;
496: break;
497: case MTC_FPS_30:
498: fps = 30;
499: break;
500: default:
501: dev_mmcstop(d);
502: return;
503: }
504: dev_mmcloc(d,
505: (x->u.loc.hr & 0x1f) * 3600 * MTC_SEC +
506: x->u.loc.min * 60 * MTC_SEC +
507: x->u.loc.sec * MTC_SEC +
1.48 ratchov 508: x->u.loc.fr * (MTC_SEC / fps));
1.1 ratchov 509: break;
510: }
511: break;
512: case SYSEX_TYPE_EDU:
513: if (x->id0 != SYSEX_AUCAT || x->id1 != SYSEX_AUCAT_DUMPREQ)
514: return;
515: if (len != SYSEX_SIZE(dumpreq))
516: return;
517: dev_midi_dump(d);
518: break;
519: }
520: }
521:
522: void
523: dev_midi_fill(void *arg, int count)
524: {
1.2 ratchov 525: /* nothing to do */
1.1 ratchov 526: }
527:
528: void
529: dev_midi_exit(void *arg)
530: {
531: struct dev *d = arg;
532:
533: if (log_level >= 1) {
534: dev_log(d);
535: log_puts(": midi end point died\n");
536: }
537: if (d->pstate != DEV_CFG)
538: dev_close(d);
539: }
540:
1.12 ratchov 541: int
542: slot_skip(struct slot *s)
1.1 ratchov 543: {
1.12 ratchov 544: unsigned char *data = (unsigned char *)0xdeadbeef; /* please gcc */
545: int max, count;
546:
547: max = s->skip;
548: while (s->skip > 0) {
549: if (s->pstate != SLOT_STOP && (s->mode & MODE_RECMASK)) {
550: data = abuf_wgetblk(&s->sub.buf, &count);
551: if (count < s->round * s->sub.bpf)
552: break;
553: }
554: if (s->mode & MODE_PLAY) {
555: if (s->mix.buf.used < s->round * s->mix.bpf)
556: break;
557: }
1.1 ratchov 558: #ifdef DEBUG
559: if (log_level >= 4) {
560: slot_log(s);
1.12 ratchov 561: log_puts(": skipped a cycle\n");
1.1 ratchov 562: }
563: #endif
1.12 ratchov 564: if (s->pstate != SLOT_STOP && (s->mode & MODE_RECMASK)) {
565: if (s->sub.encbuf)
566: enc_sil_do(&s->sub.enc, data, s->round);
567: else
568: memset(data, 0, s->round * s->sub.bpf);
569: abuf_wcommit(&s->sub.buf, s->round * s->sub.bpf);
570: }
571: if (s->mode & MODE_PLAY) {
572: abuf_rdiscard(&s->mix.buf, s->round * s->mix.bpf);
1.1 ratchov 573: }
1.23 ratchov 574: s->skip--;
1.1 ratchov 575: }
1.12 ratchov 576: return max - s->skip;
1.1 ratchov 577: }
578:
1.32 ratchov 579: /*
580: * Mix the slot input block over the output block
581: */
582: void
583: dev_mix_badd(struct dev *d, struct slot *s)
1.1 ratchov 584: {
1.32 ratchov 585: adata_t *idata, *odata, *in;
586: int icount, i, offs, vol, nch;
587:
588: odata = DEV_PBUF(d);
589: idata = (adata_t *)abuf_rgetblk(&s->mix.buf, &icount);
590: #ifdef DEBUG
591: if (icount < s->round * s->mix.bpf) {
592: slot_log(s);
593: log_puts(": not enough data to mix (");
594: log_putu(icount);
595: log_puts("bytes)\n");
596: panic();
597: }
598: #endif
599:
600: /*
601: * Apply the following processing chain:
602: *
603: * dec -> resamp-> cmap
604: *
605: * where the first two are optional.
606: */
607:
608: in = idata;
609:
610: if (s->mix.decbuf) {
611: dec_do(&s->mix.dec, (void *)in, s->mix.decbuf, s->round);
612: in = s->mix.decbuf;
613: }
1.1 ratchov 614:
615: if (s->mix.resampbuf) {
1.32 ratchov 616: resamp_do(&s->mix.resamp, in, s->mix.resampbuf, s->round);
1.1 ratchov 617: in = s->mix.resampbuf;
1.32 ratchov 618: }
1.1 ratchov 619:
1.10 ratchov 620: nch = s->mix.cmap.nch;
1.1 ratchov 621: vol = ADATA_MUL(s->mix.weight, s->mix.vol) / s->mix.join;
1.32 ratchov 622: cmap_add(&s->mix.cmap, in, odata, vol, d->round);
1.1 ratchov 623:
624: offs = 0;
625: for (i = s->mix.join - 1; i > 0; i--) {
626: offs += nch;
1.32 ratchov 627: cmap_add(&s->mix.cmap, in + offs, odata, vol, d->round);
1.1 ratchov 628: }
1.32 ratchov 629:
1.1 ratchov 630: offs = 0;
631: for (i = s->mix.expand - 1; i > 0; i--) {
632: offs += nch;
1.32 ratchov 633: cmap_add(&s->mix.cmap, in, odata + offs, vol, d->round);
1.1 ratchov 634: }
635:
636: abuf_rdiscard(&s->mix.buf, s->round * s->mix.bpf);
637: }
638:
639: /*
640: * Normalize input levels.
641: */
642: void
643: dev_mix_adjvol(struct dev *d)
644: {
645: unsigned int n;
646: struct slot *i, *j;
1.42 ratchov 647: int jcmax, icmax, weight;
1.1 ratchov 648:
649: for (i = d->slot_list; i != NULL; i = i->next) {
650: if (!(i->mode & MODE_PLAY))
651: continue;
1.42 ratchov 652: icmax = i->opt->pmin + i->mix.nch - 1;
1.1 ratchov 653: weight = ADATA_UNIT;
654: if (d->autovol) {
655: /*
656: * count the number of inputs that have
657: * overlapping channel sets
658: */
659: n = 0;
660: for (j = d->slot_list; j != NULL; j = j->next) {
661: if (!(j->mode & MODE_PLAY))
662: continue;
1.42 ratchov 663: jcmax = j->opt->pmin + j->mix.nch - 1;
664: if (i->opt->pmin <= jcmax &&
665: icmax >= j->opt->pmin)
1.1 ratchov 666: n++;
667: }
668: weight /= n;
669: }
1.38 ratchov 670: if (weight > i->opt->maxweight)
671: weight = i->opt->maxweight;
1.70 ratchov 672: i->mix.weight = d->master_enabled ?
673: ADATA_MUL(weight, MIDI_TO_ADATA(d->master)) : weight;
1.1 ratchov 674: #ifdef DEBUG
675: if (log_level >= 3) {
676: slot_log(i);
677: log_puts(": set weight: ");
678: log_puti(i->mix.weight);
679: log_puts("/");
1.38 ratchov 680: log_puti(i->opt->maxweight);
1.1 ratchov 681: log_puts("\n");
682: }
683: #endif
684: }
685: }
686:
687: /*
688: * Copy data from slot to device
689: */
690: void
691: dev_sub_bcopy(struct dev *d, struct slot *s)
692: {
1.32 ratchov 693: adata_t *idata, *enc_out, *resamp_out, *cmap_out;
694: void *odata;
1.15 ratchov 695: int ocount, moffs;
1.1 ratchov 696:
1.32 ratchov 697: int i, vol, offs, nch;
698:
699:
1.15 ratchov 700: if (s->mode & MODE_MON) {
701: moffs = d->poffs + d->round;
702: if (moffs == d->psize)
703: moffs = 0;
704: idata = d->pbuf + moffs * d->pchan;
705: } else
706: idata = d->rbuf;
1.1 ratchov 707: odata = (adata_t *)abuf_wgetblk(&s->sub.buf, &ocount);
708: #ifdef DEBUG
709: if (ocount < s->round * s->sub.bpf) {
710: log_puts("dev_sub_bcopy: not enough space\n");
711: panic();
712: }
713: #endif
1.32 ratchov 714:
715: /*
716: * Apply the following processing chain:
717: *
718: * cmap -> resamp -> enc
719: *
720: * where the last two are optional.
721: */
722:
723: enc_out = odata;
724: resamp_out = s->sub.encbuf ? s->sub.encbuf : enc_out;
725: cmap_out = s->sub.resampbuf ? s->sub.resampbuf : resamp_out;
726:
727: nch = s->sub.cmap.nch;
728: vol = ADATA_UNIT / s->sub.join;
729: cmap_copy(&s->sub.cmap, idata, cmap_out, vol, d->round);
730:
731: offs = 0;
732: for (i = s->sub.join - 1; i > 0; i--) {
733: offs += nch;
734: cmap_add(&s->sub.cmap, idata + offs, cmap_out, vol, d->round);
735: }
736:
737: offs = 0;
738: for (i = s->sub.expand - 1; i > 0; i--) {
739: offs += nch;
740: cmap_copy(&s->sub.cmap, idata, cmap_out + offs, vol, d->round);
741: }
742:
743: if (s->sub.resampbuf) {
744: resamp_do(&s->sub.resamp,
745: s->sub.resampbuf, resamp_out, d->round);
746: }
747:
748: if (s->sub.encbuf)
749: enc_do(&s->sub.enc, s->sub.encbuf, (void *)enc_out, s->round);
750:
751: abuf_wcommit(&s->sub.buf, s->round * s->sub.bpf);
1.1 ratchov 752: }
753:
1.16 ratchov 754: /*
755: * run a one block cycle: consume one recorded block from
756: * rbuf and produce one play block in pbuf
757: */
1.1 ratchov 758: void
1.16 ratchov 759: dev_cycle(struct dev *d)
1.1 ratchov 760: {
761: struct slot *s, **ps;
1.12 ratchov 762: unsigned char *base;
763: int nsamp;
1.1 ratchov 764:
1.16 ratchov 765: /*
766: * check if the device is actually used. If it isn't,
767: * then close it
768: */
769: if (d->slot_list == NULL && d->tstate != MMC_RUN) {
770: if (log_level >= 2) {
771: dev_log(d);
772: log_puts(": device stopped\n");
773: }
774: dev_sio_stop(d);
775: d->pstate = DEV_INIT;
776: if (d->refcnt == 0)
777: dev_close(d);
778: return;
779: }
780:
781: if (d->prime > 0) {
782: #ifdef DEBUG
783: if (log_level >= 4) {
784: dev_log(d);
785: log_puts(": empty cycle, prime = ");
786: log_putu(d->prime);
787: log_puts("\n");
788: }
789: #endif
790: base = (unsigned char *)DEV_PBUF(d);
791: nsamp = d->round * d->pchan;
792: memset(base, 0, nsamp * sizeof(adata_t));
793: if (d->encbuf) {
794: enc_do(&d->enc, (unsigned char *)DEV_PBUF(d),
795: d->encbuf, d->round);
796: }
797: d->prime -= d->round;
798: return;
799: }
800:
1.12 ratchov 801: d->delta -= d->round;
1.1 ratchov 802: #ifdef DEBUG
803: if (log_level >= 4) {
804: dev_log(d);
1.16 ratchov 805: log_puts(": full cycle: delta = ");
1.12 ratchov 806: log_puti(d->delta);
807: if (d->mode & MODE_PLAY) {
808: log_puts(", poffs = ");
809: log_puti(d->poffs);
810: }
811: log_puts("\n");
1.1 ratchov 812: }
813: #endif
1.12 ratchov 814: if (d->mode & MODE_PLAY) {
815: base = (unsigned char *)DEV_PBUF(d);
816: nsamp = d->round * d->pchan;
817: memset(base, 0, nsamp * sizeof(adata_t));
818: }
1.1 ratchov 819: if ((d->mode & MODE_REC) && d->decbuf)
820: dec_do(&d->dec, d->decbuf, (unsigned char *)d->rbuf, d->round);
821: ps = &d->slot_list;
822: while ((s = *ps) != NULL) {
1.12 ratchov 823: #ifdef DEBUG
824: if (log_level >= 4) {
825: slot_log(s);
826: log_puts(": running");
827: log_puts(", skip = ");
828: log_puti(s->skip);
829: log_puts("\n");
830: }
831: #endif
832: /*
833: * skip cycles for XRUN_SYNC correction
834: */
835: slot_skip(s);
836: if (s->skip < 0) {
837: s->skip++;
1.1 ratchov 838: ps = &s->next;
839: continue;
840: }
1.12 ratchov 841:
842: #ifdef DEBUG
843: if (s->pstate == SLOT_STOP && !(s->mode & MODE_PLAY)) {
844: slot_log(s);
845: log_puts(": rec-only slots can't be drained\n");
846: panic();
847: }
848: #endif
849: /*
850: * check if stopped stream finished draining
851: */
852: if (s->pstate == SLOT_STOP &&
853: s->mix.buf.used < s->round * s->mix.bpf) {
854: /*
855: * partial blocks are zero-filled by socket
856: * layer, so s->mix.buf.used == 0 and we can
857: * destroy the buffer
858: */
1.35 ratchov 859: *ps = s->next;
1.12 ratchov 860: s->pstate = SLOT_INIT;
861: s->ops->eof(s->arg);
1.35 ratchov 862: slot_freebufs(s);
1.12 ratchov 863: dev_mix_adjvol(d);
1.35 ratchov 864: #ifdef DEBUG
865: if (log_level >= 3) {
866: slot_log(s);
867: log_puts(": drained\n");
868: }
869: #endif
1.1 ratchov 870: continue;
871: }
1.23 ratchov 872:
1.12 ratchov 873: /*
874: * check for xruns
875: */
1.23 ratchov 876: if (((s->mode & MODE_PLAY) &&
1.12 ratchov 877: s->mix.buf.used < s->round * s->mix.bpf) ||
878: ((s->mode & MODE_RECMASK) &&
879: s->sub.buf.len - s->sub.buf.used <
880: s->round * s->sub.bpf)) {
881:
882: #ifdef DEBUG
883: if (log_level >= 3) {
884: slot_log(s);
885: log_puts(": xrun, pause cycle\n");
886: }
887: #endif
1.1 ratchov 888: if (s->xrun == XRUN_IGNORE) {
889: s->delta -= s->round;
1.12 ratchov 890: ps = &s->next;
891: } else if (s->xrun == XRUN_SYNC) {
892: s->skip++;
893: ps = &s->next;
894: } else if (s->xrun == XRUN_ERROR) {
895: s->ops->exit(s->arg);
896: *ps = s->next;
897: } else {
898: #ifdef DEBUG
899: slot_log(s);
900: log_puts(": bad xrun mode\n");
901: panic();
902: #endif
903: }
904: continue;
905: }
906: if ((s->mode & MODE_RECMASK) && !(s->pstate == SLOT_STOP)) {
907: if (s->sub.prime == 0) {
908: dev_sub_bcopy(d, s);
909: s->ops->flush(s->arg);
910: } else {
1.1 ratchov 911: #ifdef DEBUG
912: if (log_level >= 3) {
913: slot_log(s);
1.12 ratchov 914: log_puts(": prime = ");
915: log_puti(s->sub.prime);
916: log_puts("\n");
1.1 ratchov 917: }
918: #endif
1.12 ratchov 919: s->sub.prime--;
1.1 ratchov 920: }
921: }
1.15 ratchov 922: if (s->mode & MODE_PLAY) {
923: dev_mix_badd(d, s);
924: if (s->pstate != SLOT_STOP)
925: s->ops->fill(s->arg);
926: }
1.1 ratchov 927: ps = &s->next;
928: }
1.12 ratchov 929: if ((d->mode & MODE_PLAY) && d->encbuf) {
930: enc_do(&d->enc, (unsigned char *)DEV_PBUF(d),
931: d->encbuf, d->round);
932: }
1.1 ratchov 933: }
934:
935: /*
936: * called at every clock tick by the device
937: */
938: void
939: dev_onmove(struct dev *d, int delta)
940: {
941: long long pos;
1.23 ratchov 942: struct slot *s, *snext;
1.12 ratchov 943:
944: d->delta += delta;
1.1 ratchov 945:
946: for (s = d->slot_list; s != NULL; s = snext) {
1.12 ratchov 947: /*
948: * s->ops->onmove() may remove the slot
949: */
1.1 ratchov 950: snext = s->next;
1.80 ratchov 951: pos = s->delta_rem +
952: (long long)s->delta * d->round +
953: (long long)delta * s->round;
954: s->delta = pos / (int)d->round;
1.1 ratchov 955: s->delta_rem = pos % d->round;
1.80 ratchov 956: if (s->delta_rem < 0) {
957: s->delta_rem += d->round;
958: s->delta--;
959: }
1.1 ratchov 960: if (s->delta >= 0)
1.14 ratchov 961: s->ops->onmove(s->arg);
1.1 ratchov 962: }
963: if (d->tstate == MMC_RUN)
964: dev_midi_qfr(d, delta);
965: }
966:
967: void
968: dev_master(struct dev *d, unsigned int master)
969: {
1.70 ratchov 970: struct ctl *c;
971: unsigned int v;
972:
1.1 ratchov 973: if (log_level >= 2) {
974: dev_log(d);
975: log_puts(": master volume set to ");
976: log_putu(master);
977: log_puts("\n");
978: }
1.70 ratchov 979: if (d->master_enabled) {
980: d->master = master;
981: if (d->mode & MODE_PLAY)
982: dev_mix_adjvol(d);
983: } else {
984: for (c = d->ctl_list; c != NULL; c = c->next) {
985: if (c->type != CTL_NUM ||
986: strcmp(c->group, "") != 0 ||
987: strcmp(c->node0.name, "output") != 0 ||
988: strcmp(c->func, "level") != 0)
989: continue;
990: v = (master * c->maxval + 64) / 127;
991: dev_setctl(d, c->addr, v);
992: }
993: }
1.1 ratchov 994: }
995:
996: /*
997: * return the latency that a stream would have if it's attached
998: */
999: int
1000: dev_getpos(struct dev *d)
1001: {
1002: return (d->mode & MODE_PLAY) ? -d->bufsz : 0;
1003: }
1004:
1005: /*
1006: * Create a sndio device
1007: */
1008: struct dev *
1009: dev_new(char *path, struct aparams *par,
1010: unsigned int mode, unsigned int bufsz, unsigned int round,
1011: unsigned int rate, unsigned int hold, unsigned int autovol)
1012: {
1013: struct dev *d;
1014: unsigned int i;
1015:
1016: if (dev_sndnum == DEV_NMAX) {
1017: if (log_level >= 1)
1018: log_puts("too many devices\n");
1019: return NULL;
1020: }
1021: d = xmalloc(sizeof(struct dev));
1.73 ratchov 1022: d->alt_list = NULL;
1023: dev_addname(d,path);
1.1 ratchov 1024: d->num = dev_sndnum++;
1.36 ratchov 1025: d->opt_list = NULL;
1.76 ratchov 1026: d->alt_num = -1;
1.1 ratchov 1027:
1028: /*
1029: * XXX: below, we allocate a midi input buffer, since we don't
1030: * receive raw midi data, so no need to allocate a input
1031: * ibuf. Possibly set imsg & fill callbacks to NULL and
1032: * use this to in midi_new() to check if buffers need to be
1033: * allocated
1034: */
1035: d->midi = midi_new(&dev_midiops, d, MODE_MIDIIN | MODE_MIDIOUT);
1036: midi_tag(d->midi, d->num);
1037: d->reqpar = *par;
1038: d->reqmode = mode;
1039: d->reqpchan = d->reqrchan = 0;
1040: d->reqbufsz = bufsz;
1041: d->reqround = round;
1042: d->reqrate = rate;
1043: d->hold = hold;
1044: d->autovol = autovol;
1045: d->refcnt = 0;
1046: d->pstate = DEV_CFG;
1047: d->serial = 0;
1048: for (i = 0; i < DEV_NSLOT; i++) {
1049: d->slot[i].unit = i;
1050: d->slot[i].ops = NULL;
1051: d->slot[i].vol = MIDI_MAXCTL;
1052: d->slot[i].serial = d->serial++;
1.69 ratchov 1053: memset(d->slot[i].name, 0, SLOT_NAMEMAX);
1.1 ratchov 1054: }
1.64 ratchov 1055: for (i = 0; i < DEV_NCTLSLOT; i++) {
1056: d->ctlslot[i].ops = NULL;
1057: d->ctlslot[i].dev = d;
1058: d->ctlslot[i].mask = 0;
1059: d->ctlslot[i].mode = 0;
1060: }
1.1 ratchov 1061: d->slot_list = NULL;
1062: d->master = MIDI_MAXCTL;
1063: d->mtc.origin = 0;
1064: d->tstate = MMC_STOP;
1.64 ratchov 1065: d->ctl_list = NULL;
1.1 ratchov 1066: d->next = dev_list;
1067: dev_list = d;
1068: return d;
1069: }
1070:
1071: /*
1.73 ratchov 1072: * add a alternate name
1073: */
1074: int
1075: dev_addname(struct dev *d, char *name)
1076: {
1077: struct dev_alt *a;
1078:
1079: if (d->alt_list != NULL && d->alt_list->idx == DEV_NMAX - 1) {
1080: log_puts(name);
1081: log_puts(": too many alternate names\n");
1082: return 0;
1083: }
1084: a = xmalloc(sizeof(struct dev_alt));
1085: a->name = name;
1086: a->idx = (d->alt_list == NULL) ? 0 : d->alt_list->idx + 1;
1087: a->next = d->alt_list;
1088: d->alt_list = a;
1089: return 1;
1090: }
1091:
1092: /*
1.75 ratchov 1093: * set prefered alt device name
1094: */
1095: void
1096: dev_setalt(struct dev *d, unsigned int idx)
1097: {
1098: struct dev_alt **pa, *a;
1099:
1100: /* find alt with given index */
1101: for (pa = &d->alt_list; (a = *pa)->idx != idx; pa = &a->next)
1102: ;
1103:
1104: /* detach from list */
1105: *pa = a->next;
1106:
1107: /* attach at head */
1108: a->next = d->alt_list;
1109: d->alt_list = a;
1110:
1111: /* reopen device with the new alt */
1112: if (idx != d->alt_num)
1113: dev_reopen(d);
1114: }
1115:
1116: /*
1.1 ratchov 1117: * adjust device parameters and mode
1118: */
1119: void
1120: dev_adjpar(struct dev *d, int mode,
1.25 ratchov 1121: int pmax, int rmax)
1.1 ratchov 1122: {
1123: d->reqmode |= mode & MODE_AUDIOMASK;
1124: if (mode & MODE_PLAY) {
1125: if (d->reqpchan < pmax + 1)
1126: d->reqpchan = pmax + 1;
1127: }
1128: if (mode & MODE_REC) {
1129: if (d->reqrchan < rmax + 1)
1130: d->reqrchan = rmax + 1;
1131: }
1132: }
1133:
1134: /*
1135: * Open the device with the dev_reqxxx capabilities. Setup a mixer, demuxer,
1136: * monitor, midi control, and any necessary conversions.
1137: */
1138: int
1.59 ratchov 1139: dev_allocbufs(struct dev *d)
1.1 ratchov 1140: {
1141: if (d->mode & MODE_REC) {
1142: /*
1143: * Create device <-> demuxer buffer
1144: */
1145: d->rbuf = xmalloc(d->round * d->rchan * sizeof(adata_t));
1146:
1147: /*
1148: * Insert a converter, if needed.
1149: */
1150: if (!aparams_native(&d->par)) {
1151: dec_init(&d->dec, &d->par, d->rchan);
1152: d->decbuf = xmalloc(d->round * d->rchan * d->par.bps);
1153: } else
1154: d->decbuf = NULL;
1155: }
1156: if (d->mode & MODE_PLAY) {
1157: /*
1158: * Create device <-> mixer buffer
1159: */
1160: d->poffs = 0;
1.15 ratchov 1161: d->psize = d->bufsz + d->round;
1162: d->pbuf = xmalloc(d->psize * d->pchan * sizeof(adata_t));
1.1 ratchov 1163: d->mode |= MODE_MON;
1164:
1165: /*
1166: * Append a converter, if needed.
1167: */
1168: if (!aparams_native(&d->par)) {
1169: enc_init(&d->enc, &d->par, d->pchan);
1170: d->encbuf = xmalloc(d->round * d->pchan * d->par.bps);
1171: } else
1172: d->encbuf = NULL;
1173: }
1174: if (log_level >= 2) {
1175: dev_log(d);
1176: log_puts(": ");
1177: log_putu(d->rate);
1178: log_puts("Hz, ");
1179: aparams_log(&d->par);
1180: if (d->mode & MODE_PLAY) {
1181: log_puts(", play 0:");
1182: log_puti(d->pchan - 1);
1183: }
1184: if (d->mode & MODE_REC) {
1185: log_puts(", rec 0:");
1186: log_puti(d->rchan - 1);
1187: }
1188: log_puts(", ");
1189: log_putu(d->bufsz / d->round);
1190: log_puts(" blocks of ");
1191: log_putu(d->round);
1192: log_puts(" frames\n");
1193: }
1.57 ratchov 1194: return 1;
1195: }
1196:
1197: /*
1198: * Reset parameters and open the device.
1199: */
1200: int
1201: dev_open(struct dev *d)
1202: {
1.64 ratchov 1203: int i;
1204: char name[CTL_NAMEMAX];
1.75 ratchov 1205: struct dev_alt *a;
1.64 ratchov 1206:
1.70 ratchov 1207: d->master_enabled = 0;
1.57 ratchov 1208: d->mode = d->reqmode;
1209: d->round = d->reqround;
1210: d->bufsz = d->reqbufsz;
1211: d->rate = d->reqrate;
1212: d->pchan = d->reqpchan;
1213: d->rchan = d->reqrchan;
1214: d->par = d->reqpar;
1215: if (d->pchan == 0)
1216: d->pchan = 2;
1217: if (d->rchan == 0)
1218: d->rchan = 2;
1.59 ratchov 1219: if (!dev_sio_open(d)) {
1220: if (log_level >= 1) {
1221: dev_log(d);
1222: log_puts(": failed to open audio device\n");
1223: }
1224: return 0;
1225: }
1226: if (!dev_allocbufs(d))
1.57 ratchov 1227: return 0;
1.64 ratchov 1228:
1229: for (i = 0; i < DEV_NSLOT; i++) {
1.69 ratchov 1230: if (d->slot[i].name[0] == 0)
1231: continue;
1.64 ratchov 1232: slot_ctlname(&d->slot[i], name, CTL_NAMEMAX);
1233: dev_addctl(d, "app", CTL_NUM,
1234: CTLADDR_SLOT_LEVEL(i),
1235: name, -1, "level",
1236: NULL, -1, 127, d->slot[i].vol);
1237: }
1238:
1.77 ratchov 1239: /* if there are multiple alt devs, add server.device knob */
1240: if (d->alt_list->next != NULL) {
1241: for (a = d->alt_list; a != NULL; a = a->next) {
1242: snprintf(name, sizeof(name), "%d", a->idx);
1243: dev_addctl(d, "", CTL_SEL,
1244: CTLADDR_ALT_SEL + a->idx,
1245: "server", -1, "device",
1246: name, -1, 1, a->idx == d->alt_num);
1247: }
1.75 ratchov 1248: }
1249:
1.59 ratchov 1250: d->pstate = DEV_INIT;
1.1 ratchov 1251: return 1;
1252: }
1253:
1254: /*
1.72 ratchov 1255: * Force all slots to exit and close device, called after an error
1.55 ratchov 1256: */
1257: void
1.72 ratchov 1258: dev_abort(struct dev *d)
1.55 ratchov 1259: {
1260: int i;
1261: struct slot *s;
1.64 ratchov 1262: struct ctlslot *c;
1.55 ratchov 1263:
1264: for (s = d->slot, i = DEV_NSLOT; i > 0; i--, s++) {
1265: if (s->ops)
1266: s->ops->exit(s->arg);
1267: s->ops = NULL;
1268: }
1269: d->slot_list = NULL;
1.64 ratchov 1270:
1271: for (c = d->ctlslot, i = DEV_NCTLSLOT; i > 0; i--, c++) {
1272: if (c->ops)
1273: c->ops->exit(c->arg);
1274: c->ops = NULL;
1275: }
1.72 ratchov 1276:
1277: if (d->pstate != DEV_CFG)
1278: dev_close(d);
1.55 ratchov 1279: }
1280:
1281: /*
1.1 ratchov 1282: * force the device to go in DEV_CFG state, the caller is supposed to
1283: * ensure buffers are drained
1284: */
1285: void
1.59 ratchov 1286: dev_freebufs(struct dev *d)
1.1 ratchov 1287: {
1288: #ifdef DEBUG
1289: if (log_level >= 3) {
1290: dev_log(d);
1291: log_puts(": closing\n");
1292: }
1293: #endif
1294: if (d->mode & MODE_PLAY) {
1295: if (d->encbuf != NULL)
1296: xfree(d->encbuf);
1297: xfree(d->pbuf);
1298: }
1299: if (d->mode & MODE_REC) {
1300: if (d->decbuf != NULL)
1301: xfree(d->decbuf);
1302: xfree(d->rbuf);
1303: }
1.58 ratchov 1304: }
1305:
1306: /*
1307: * Close the device and exit all slots
1308: */
1309: void
1310: dev_close(struct dev *d)
1311: {
1.64 ratchov 1312: struct ctl *c;
1313:
1.59 ratchov 1314: d->pstate = DEV_CFG;
1315: dev_sio_close(d);
1316: dev_freebufs(d);
1.64 ratchov 1317:
1318: /* there are no clients, just free remaining local controls */
1319: while ((c = d->ctl_list) != NULL) {
1320: d->ctl_list = c->next;
1321: xfree(c);
1322: }
1.1 ratchov 1323: }
1324:
1.62 ratchov 1325: /*
1326: * Close the device, but attempt to migrate everything to a new sndio
1327: * device.
1328: */
1329: int
1330: dev_reopen(struct dev *d)
1331: {
1332: struct slot *s;
1333: long long pos;
1334: unsigned int pstate;
1335: int delta;
1336:
1337: /* not opened */
1338: if (d->pstate == DEV_CFG)
1339: return 1;
1340:
1341: /* save state */
1342: delta = d->delta;
1343: pstate = d->pstate;
1344:
1345: if (!dev_sio_reopen(d))
1346: return 0;
1347:
1348: /* reopen returns a stopped device */
1349: d->pstate = DEV_INIT;
1350:
1351: /* reallocate new buffers, with new parameters */
1352: dev_freebufs(d);
1353: dev_allocbufs(d);
1354:
1355: /*
1356: * adjust time positions, make anything go back delta ticks, so
1357: * that the new device can start at zero
1358: */
1359: for (s = d->slot_list; s != NULL; s = s->next) {
1360: pos = (long long)s->delta * d->round + s->delta_rem;
1361: pos -= (long long)delta * s->round;
1362: s->delta_rem = pos % (int)d->round;
1363: s->delta = pos / (int)d->round;
1364: if (log_level >= 3) {
1365: slot_log(s);
1366: log_puts(": adjusted: delta -> ");
1367: log_puti(s->delta);
1368: log_puts(", delta_rem -> ");
1369: log_puti(s->delta_rem);
1370: log_puts("\n");
1371: }
1372:
1373: /* reinitilize the format conversion chain */
1374: slot_initconv(s);
1375: }
1376: if (d->tstate == MMC_RUN) {
1377: d->mtc.delta -= delta * MTC_SEC;
1378: if (log_level >= 2) {
1379: dev_log(d);
1380: log_puts(": adjusted mtc: delta ->");
1381: log_puti(d->mtc.delta);
1382: log_puts("\n");
1383: }
1384: }
1385:
1.71 ratchov 1386: /* remove old controls and add new ones */
1387: dev_sioctl_close(d);
1.64 ratchov 1388: dev_sioctl_open(d);
1389:
1.62 ratchov 1390: /* start the device if needed */
1391: if (pstate == DEV_RUN)
1392: dev_wakeup(d);
1393:
1394: return 1;
1395: }
1396:
1.1 ratchov 1397: int
1398: dev_ref(struct dev *d)
1399: {
1400: #ifdef DEBUG
1401: if (log_level >= 3) {
1402: dev_log(d);
1403: log_puts(": device requested\n");
1404: }
1405: #endif
1406: if (d->pstate == DEV_CFG && !dev_open(d))
1407: return 0;
1408: d->refcnt++;
1409: return 1;
1410: }
1411:
1412: void
1413: dev_unref(struct dev *d)
1414: {
1415: #ifdef DEBUG
1416: if (log_level >= 3) {
1417: dev_log(d);
1418: log_puts(": device released\n");
1419: }
1420: #endif
1421: d->refcnt--;
1422: if (d->refcnt == 0 && d->pstate == DEV_INIT)
1423: dev_close(d);
1424: }
1425:
1426: /*
1427: * initialize the device with the current parameters
1428: */
1429: int
1430: dev_init(struct dev *d)
1431: {
1432: if ((d->reqmode & MODE_AUDIOMASK) == 0) {
1433: #ifdef DEBUG
1434: dev_log(d);
1435: log_puts(": has no streams\n");
1436: #endif
1437: return 0;
1438: }
1439: if (d->hold && !dev_ref(d))
1440: return 0;
1441: return 1;
1442: }
1443:
1444: /*
1445: * Unless the device is already in process of closing, request it to close
1446: */
1447: void
1448: dev_done(struct dev *d)
1449: {
1450: #ifdef DEBUG
1451: if (log_level >= 3) {
1452: dev_log(d);
1453: log_puts(": draining\n");
1454: }
1455: #endif
1.20 ratchov 1456: if (d->tstate != MMC_STOP)
1457: dev_mmcstop(d);
1.1 ratchov 1458: if (d->hold)
1459: dev_unref(d);
1460: }
1461:
1462: struct dev *
1463: dev_bynum(int num)
1464: {
1465: struct dev *d;
1466:
1467: for (d = dev_list; d != NULL; d = d->next) {
1.19 ratchov 1468: if (d->num == num)
1.1 ratchov 1469: return d;
1470: }
1471: return NULL;
1472: }
1473:
1474: /*
1475: * Free the device
1476: */
1477: void
1478: dev_del(struct dev *d)
1479: {
1480: struct dev **p;
1.73 ratchov 1481: struct dev_alt *a;
1.1 ratchov 1482:
1483: #ifdef DEBUG
1484: if (log_level >= 3) {
1485: dev_log(d);
1486: log_puts(": deleting\n");
1487: }
1488: #endif
1.36 ratchov 1489: while (d->opt_list != NULL)
1490: opt_del(d, d->opt_list);
1.1 ratchov 1491: if (d->pstate != DEV_CFG)
1492: dev_close(d);
1493: for (p = &dev_list; *p != d; p = &(*p)->next) {
1494: #ifdef DEBUG
1495: if (*p == NULL) {
1496: dev_log(d);
1497: log_puts(": device to delete not on the list\n");
1498: panic();
1499: }
1500: #endif
1501: }
1502: midi_del(d->midi);
1503: *p = d->next;
1.73 ratchov 1504: while ((a = d->alt_list) != NULL) {
1505: d->alt_list = a->next;
1506: xfree(a);
1507: }
1.1 ratchov 1508: xfree(d);
1509: }
1510:
1511: unsigned int
1512: dev_roundof(struct dev *d, unsigned int newrate)
1513: {
1514: return (d->round * newrate + d->rate / 2) / d->rate;
1515: }
1516:
1517: /*
1518: * If the device is paused, then resume it.
1519: */
1520: void
1521: dev_wakeup(struct dev *d)
1522: {
1523: if (d->pstate == DEV_INIT) {
1524: if (log_level >= 2) {
1525: dev_log(d);
1526: log_puts(": device started\n");
1527: }
1528: if (d->mode & MODE_PLAY) {
1529: d->prime = d->bufsz;
1530: } else {
1531: d->prime = 0;
1532: }
1.16 ratchov 1533: d->poffs = 0;
1.12 ratchov 1534:
1.23 ratchov 1535: /*
1.16 ratchov 1536: * empty cycles don't increment delta, so it's ok to
1537: * start at 0
1538: **/
1.23 ratchov 1539: d->delta = 0;
1.12 ratchov 1540:
1.1 ratchov 1541: d->pstate = DEV_RUN;
1542: dev_sio_start(d);
1543: }
1544: }
1545:
1546: /*
1547: * check that all clients controlled by MMC are ready to start, if so,
1548: * attach them all at the same position
1549: */
1550: void
1551: dev_sync_attach(struct dev *d)
1552: {
1553: int i;
1554: struct slot *s;
1555:
1556: if (d->tstate != MMC_START) {
1557: if (log_level >= 2) {
1558: dev_log(d);
1559: log_puts(": not started by mmc yet, waiting...\n");
1560: }
1561: return;
1562: }
1563: for (i = 0; i < DEV_NSLOT; i++) {
1564: s = d->slot + i;
1.46 ratchov 1565: if (!s->ops || !s->opt->mmc)
1.1 ratchov 1566: continue;
1.46 ratchov 1567: if (s->pstate != SLOT_READY) {
1.1 ratchov 1568: #ifdef DEBUG
1569: if (log_level >= 3) {
1570: slot_log(s);
1571: log_puts(": not ready, start delayed\n");
1572: }
1573: #endif
1574: return;
1575: }
1576: }
1577: if (!dev_ref(d))
1578: return;
1579: for (i = 0; i < DEV_NSLOT; i++) {
1580: s = d->slot + i;
1.46 ratchov 1581: if (!s->ops || !s->opt->mmc)
1.1 ratchov 1582: continue;
1.46 ratchov 1583: slot_attach(s);
1.79 ratchov 1584: s->pstate = SLOT_RUN;
1.1 ratchov 1585: }
1586: d->tstate = MMC_RUN;
1587: dev_midi_full(d);
1588: dev_wakeup(d);
1589: }
1590:
1591: /*
1592: * start all slots simultaneously
1593: */
1594: void
1595: dev_mmcstart(struct dev *d)
1596: {
1597: if (d->tstate == MMC_STOP) {
1598: d->tstate = MMC_START;
1599: dev_sync_attach(d);
1600: #ifdef DEBUG
1601: } else {
1602: if (log_level >= 3) {
1603: dev_log(d);
1604: log_puts(": ignoring mmc start\n");
1605: }
1606: #endif
1607: }
1608: }
1609:
1610: /*
1611: * stop all slots simultaneously
1612: */
1613: void
1614: dev_mmcstop(struct dev *d)
1615: {
1616: switch (d->tstate) {
1617: case MMC_START:
1618: d->tstate = MMC_STOP;
1619: return;
1620: case MMC_RUN:
1621: d->tstate = MMC_STOP;
1622: dev_unref(d);
1623: break;
1624: default:
1625: #ifdef DEBUG
1626: if (log_level >= 3) {
1627: dev_log(d);
1628: log_puts(": ignored mmc stop\n");
1629: }
1630: #endif
1631: return;
1632: }
1633: }
1634:
1635: /*
1636: * relocate all slots simultaneously
1637: */
1638: void
1639: dev_mmcloc(struct dev *d, unsigned int origin)
1640: {
1641: if (log_level >= 2) {
1642: dev_log(d);
1643: log_puts(": relocated to ");
1644: log_putu(origin);
1645: log_puts("\n");
1646: }
1647: if (d->tstate == MMC_RUN)
1648: dev_mmcstop(d);
1649: d->mtc.origin = origin;
1650: if (d->tstate == MMC_RUN)
1651: dev_mmcstart(d);
1652: }
1653:
1.35 ratchov 1654: /*
1655: * allocate buffers & conversion chain
1656: */
1657: void
1.60 ratchov 1658: slot_initconv(struct slot *s)
1.35 ratchov 1659: {
1.63 ratchov 1660: unsigned int dev_nch;
1.35 ratchov 1661: struct dev *d = s->dev;
1662:
1663: if (s->mode & MODE_PLAY) {
1664: cmap_init(&s->mix.cmap,
1.42 ratchov 1665: s->opt->pmin, s->opt->pmin + s->mix.nch - 1,
1666: s->opt->pmin, s->opt->pmin + s->mix.nch - 1,
1.35 ratchov 1667: 0, d->pchan - 1,
1.40 ratchov 1668: s->opt->pmin, s->opt->pmax);
1.35 ratchov 1669: if (!aparams_native(&s->par)) {
1.42 ratchov 1670: dec_init(&s->mix.dec, &s->par, s->mix.nch);
1.35 ratchov 1671: }
1672: if (s->rate != d->rate) {
1673: resamp_init(&s->mix.resamp, s->round, d->round,
1.42 ratchov 1674: s->mix.nch);
1.35 ratchov 1675: }
1.61 ratchov 1676: s->mix.join = 1;
1677: s->mix.expand = 1;
1.63 ratchov 1678: if (s->opt->dup && s->mix.cmap.nch > 0) {
1679: dev_nch = d->pchan < (s->opt->pmax + 1) ?
1680: d->pchan - s->opt->pmin :
1681: s->opt->pmax - s->opt->pmin + 1;
1682: if (dev_nch > s->mix.nch)
1683: s->mix.expand = dev_nch / s->mix.nch;
1684: else if (s->mix.nch > dev_nch)
1685: s->mix.join = s->mix.nch / dev_nch;
1.61 ratchov 1686: }
1.35 ratchov 1687: }
1688:
1689: if (s->mode & MODE_RECMASK) {
1.63 ratchov 1690: unsigned int outchan = (s->mode & MODE_MON) ?
1691: d->pchan : d->rchan;
1692:
1.35 ratchov 1693: cmap_init(&s->sub.cmap,
1.63 ratchov 1694: 0, outchan - 1,
1.40 ratchov 1695: s->opt->rmin, s->opt->rmax,
1.42 ratchov 1696: s->opt->rmin, s->opt->rmin + s->sub.nch - 1,
1697: s->opt->rmin, s->opt->rmin + s->sub.nch - 1);
1.35 ratchov 1698: if (s->rate != d->rate) {
1699: resamp_init(&s->sub.resamp, d->round, s->round,
1.42 ratchov 1700: s->sub.nch);
1.35 ratchov 1701: }
1702: if (!aparams_native(&s->par)) {
1.42 ratchov 1703: enc_init(&s->sub.enc, &s->par, s->sub.nch);
1.61 ratchov 1704: }
1705: s->sub.join = 1;
1706: s->sub.expand = 1;
1.63 ratchov 1707: if (s->opt->dup && s->sub.cmap.nch > 0) {
1708: dev_nch = outchan < (s->opt->rmax + 1) ?
1709: outchan - s->opt->rmin :
1710: s->opt->rmax - s->opt->rmin + 1;
1711: if (dev_nch > s->sub.nch)
1712: s->sub.join = dev_nch / s->sub.nch;
1713: else if (s->sub.nch > dev_nch)
1714: s->sub.expand = s->sub.nch / dev_nch;
1.35 ratchov 1715: }
1716:
1717: /*
1718: * cmap_copy() doesn't write samples in all channels,
1719: * for instance when mono->stereo conversion is
1720: * disabled. So we have to prefill cmap_copy() output
1721: * with silence.
1722: */
1723: if (s->sub.resampbuf) {
1724: memset(s->sub.resampbuf, 0,
1.42 ratchov 1725: d->round * s->sub.nch * sizeof(adata_t));
1.35 ratchov 1726: } else if (s->sub.encbuf) {
1727: memset(s->sub.encbuf, 0,
1.42 ratchov 1728: s->round * s->sub.nch * sizeof(adata_t));
1.35 ratchov 1729: } else {
1730: memset(s->sub.buf.data, 0,
1.42 ratchov 1731: s->appbufsz * s->sub.nch * sizeof(adata_t));
1.35 ratchov 1732: }
1733: }
1.60 ratchov 1734: }
1735:
1736: /*
1737: * allocate buffers & conversion chain
1738: */
1739: void
1740: slot_allocbufs(struct slot *s)
1741: {
1742: struct dev *d = s->dev;
1743:
1744: if (s->mode & MODE_PLAY) {
1745: s->mix.bpf = s->par.bps * s->mix.nch;
1746: abuf_init(&s->mix.buf, s->appbufsz * s->mix.bpf);
1747:
1748: s->mix.decbuf = NULL;
1749: s->mix.resampbuf = NULL;
1750: if (!aparams_native(&s->par)) {
1751: s->mix.decbuf =
1752: xmalloc(s->round * s->mix.nch * sizeof(adata_t));
1753: }
1754: if (s->rate != d->rate) {
1755: s->mix.resampbuf =
1756: xmalloc(d->round * s->mix.nch * sizeof(adata_t));
1757: }
1758: }
1759:
1760: if (s->mode & MODE_RECMASK) {
1761: s->sub.bpf = s->par.bps * s->sub.nch;
1762: abuf_init(&s->sub.buf, s->appbufsz * s->sub.bpf);
1763:
1764: s->sub.encbuf = NULL;
1765: s->sub.resampbuf = NULL;
1766: if (s->rate != d->rate) {
1767: s->sub.resampbuf =
1768: xmalloc(d->round * s->sub.nch * sizeof(adata_t));
1769: }
1770: if (!aparams_native(&s->par)) {
1771: s->sub.encbuf =
1772: xmalloc(s->round * s->sub.nch * sizeof(adata_t));
1773: }
1774: }
1775:
1776: slot_initconv(s);
1.35 ratchov 1777:
1778: #ifdef DEBUG
1779: if (log_level >= 3) {
1780: slot_log(s);
1781: log_puts(": allocated ");
1782: log_putu(s->appbufsz);
1783: log_puts("/");
1784: log_putu(SLOT_BUFSZ(s));
1785: log_puts(" fr buffers\n");
1786: }
1787: #endif
1788: }
1789:
1790: /*
1791: * free buffers & conversion chain
1792: */
1793: void
1794: slot_freebufs(struct slot *s)
1795: {
1796: if (s->mode & MODE_RECMASK) {
1797: abuf_done(&s->sub.buf);
1798: if (s->sub.encbuf)
1799: xfree(s->sub.encbuf);
1800: if (s->sub.resampbuf)
1801: xfree(s->sub.resampbuf);
1802: }
1803:
1804: if (s->mode & MODE_PLAY) {
1805: abuf_done(&s->mix.buf);
1806: if (s->mix.decbuf)
1807: xfree(s->mix.decbuf);
1808: if (s->mix.resampbuf)
1809: xfree(s->mix.resampbuf);
1810: }
1811: }
1812:
1.1 ratchov 1813: /*
1814: * allocate a new slot and register the given call-backs
1815: */
1816: struct slot *
1.54 ratchov 1817: slot_new(struct dev *d, struct opt *opt, unsigned int id, char *who,
1.37 ratchov 1818: struct slotops *ops, void *arg, int mode)
1.1 ratchov 1819: {
1820: char *p;
1821: char name[SLOT_NAMEMAX];
1.52 ratchov 1822: unsigned int i, ser, bestser, bestidx;
1823: struct slot *unit[DEV_NSLOT];
1.1 ratchov 1824: struct slot *s;
1825:
1826: /*
1.27 ratchov 1827: * create a ``valid'' control name (lowcase, remove [^a-z], truncate)
1.1 ratchov 1828: */
1829: for (i = 0, p = who; ; p++) {
1830: if (i == SLOT_NAMEMAX - 1 || *p == '\0') {
1831: name[i] = '\0';
1832: break;
1833: } else if (*p >= 'A' && *p <= 'Z') {
1834: name[i++] = *p + 'a' - 'A';
1835: } else if (*p >= 'a' && *p <= 'z')
1836: name[i++] = *p;
1837: }
1838: if (i == 0)
1839: strlcpy(name, "noname", SLOT_NAMEMAX);
1840:
1841: /*
1.52 ratchov 1842: * build a unit-to-slot map for this name
1.1 ratchov 1843: */
1.52 ratchov 1844: for (i = 0; i < DEV_NSLOT; i++)
1845: unit[i] = NULL;
1846: for (i = 0; i < DEV_NSLOT; i++) {
1847: s = d->slot + i;
1.1 ratchov 1848: if (strcmp(s->name, name) == 0)
1.52 ratchov 1849: unit[s->unit] = s;
1.1 ratchov 1850: }
1851:
1852: /*
1.54 ratchov 1853: * find the free slot with the least unit number and same id
1854: */
1855: for (i = 0; i < DEV_NSLOT; i++) {
1856: s = unit[i];
1857: if (s != NULL && s->ops == NULL && s->id == id)
1858: goto found;
1859: }
1860:
1861: /*
1.52 ratchov 1862: * find the free slot with the least unit number
1.1 ratchov 1863: */
1.52 ratchov 1864: for (i = 0; i < DEV_NSLOT; i++) {
1865: s = unit[i];
1.54 ratchov 1866: if (s != NULL && s->ops == NULL) {
1867: s->id = id;
1.1 ratchov 1868: goto found;
1.54 ratchov 1869: }
1.1 ratchov 1870: }
1871:
1872: /*
1.18 ratchov 1873: * couldn't find a matching slot, pick oldest free slot
1.1 ratchov 1874: * and set its name/unit
1875: */
1876: bestser = 0;
1877: bestidx = DEV_NSLOT;
1878: for (i = 0, s = d->slot; i < DEV_NSLOT; i++, s++) {
1879: if (s->ops != NULL)
1880: continue;
1881: ser = d->serial - s->serial;
1882: if (ser > bestser) {
1883: bestser = ser;
1884: bestidx = i;
1885: }
1886: }
1.51 ratchov 1887: if (bestidx != DEV_NSLOT) {
1888: s = d->slot + bestidx;
1889: s->vol = MIDI_MAXCTL;
1890: strlcpy(s->name, name, SLOT_NAMEMAX);
1891: s->serial = d->serial++;
1.52 ratchov 1892: for (i = 0; unit[i] != NULL; i++)
1893: ; /* nothing */
1894: s->unit = i;
1.54 ratchov 1895: s->id = id;
1.51 ratchov 1896: goto found;
1.1 ratchov 1897: }
1.53 ratchov 1898:
1.51 ratchov 1899: if (log_level >= 1) {
1.1 ratchov 1900: log_puts(name);
1.51 ratchov 1901: log_puts(": out of sub-device slots\n");
1.1 ratchov 1902: }
1.51 ratchov 1903: return NULL;
1.1 ratchov 1904:
1905: found:
1.37 ratchov 1906: if ((mode & MODE_REC) && (opt->mode & MODE_MON)) {
1907: mode |= MODE_MON;
1908: mode &= ~MODE_REC;
1909: }
1910: if ((mode & opt->mode) != mode) {
1911: if (log_level >= 1) {
1912: slot_log(s);
1913: log_puts(": requested mode not allowed\n");
1914: }
1915: return 0;
1916: }
1.1 ratchov 1917: if (!dev_ref(d))
1918: return NULL;
1.64 ratchov 1919: dev_label(d, s - d->slot);
1.31 ratchov 1920: if ((mode & d->mode) != mode) {
1.1 ratchov 1921: if (log_level >= 1) {
1922: slot_log(s);
1923: log_puts(": requested mode not supported\n");
1924: }
1.31 ratchov 1925: dev_unref(d);
1.49 ratchov 1926: return NULL;
1.1 ratchov 1927: }
1.31 ratchov 1928: s->dev = d;
1.37 ratchov 1929: s->opt = opt;
1.31 ratchov 1930: s->ops = ops;
1931: s->arg = arg;
1932: s->pstate = SLOT_INIT;
1.1 ratchov 1933: s->mode = mode;
1.6 ratchov 1934: aparams_init(&s->par);
1.41 ratchov 1935: if (s->mode & MODE_PLAY)
1.42 ratchov 1936: s->mix.nch = s->opt->pmax - s->opt->pmin + 1;
1.41 ratchov 1937: if (s->mode & MODE_RECMASK)
1.42 ratchov 1938: s->sub.nch = s->opt->rmax - s->opt->rmin + 1;
1.46 ratchov 1939: s->xrun = s->opt->mmc ? XRUN_SYNC : XRUN_IGNORE;
1.1 ratchov 1940: s->appbufsz = d->bufsz;
1941: s->round = d->round;
1.5 ratchov 1942: s->rate = d->rate;
1.1 ratchov 1943: dev_midi_slotdesc(d, s);
1944: dev_midi_vol(d, s);
1.43 ratchov 1945: #ifdef DEBUG
1946: if (log_level >= 3) {
1947: slot_log(s);
1948: log_puts(": using ");
1949: dev_log(d);
1950: log_puts(".");
1951: log_puts(opt->name);
1952: log_puts(", mode = ");
1953: log_putx(mode);
1954: log_puts("\n");
1955: }
1956: #endif
1.1 ratchov 1957: return s;
1958: }
1959:
1960: /*
1961: * release the given slot
1962: */
1963: void
1964: slot_del(struct slot *s)
1965: {
1966: s->arg = s;
1967: s->ops = &zomb_slotops;
1968: switch (s->pstate) {
1969: case SLOT_INIT:
1970: s->ops = NULL;
1971: break;
1972: case SLOT_START:
1973: case SLOT_READY:
1974: case SLOT_RUN:
1975: slot_stop(s);
1976: /* PASSTHROUGH */
1977: case SLOT_STOP:
1978: break;
1979: }
1980: dev_unref(s->dev);
1981: s->dev = NULL;
1982: }
1983:
1984: /*
1985: * change the slot play volume; called either by the slot or by MIDI
1986: */
1987: void
1988: slot_setvol(struct slot *s, unsigned int vol)
1989: {
1990: #ifdef DEBUG
1991: if (log_level >= 3) {
1992: slot_log(s);
1993: log_puts(": setting volume ");
1994: log_putu(vol);
1995: log_puts("\n");
1996: }
1997: #endif
1998: s->vol = vol;
1999: s->mix.vol = MIDI_TO_ADATA(s->vol);
2000: }
2001:
2002: /*
2003: * attach the slot to the device (ie start playing & recording
2004: */
2005: void
2006: slot_attach(struct slot *s)
2007: {
2008: struct dev *d = s->dev;
1.12 ratchov 2009: long long pos;
1.1 ratchov 2010:
2011: /*
2012: * start the device if not started
2013: */
2014: dev_wakeup(d);
1.23 ratchov 2015:
1.1 ratchov 2016: /*
1.12 ratchov 2017: * adjust initial clock
2018: */
1.79 ratchov 2019: pos = s->delta_rem +
2020: (long long)s->delta * d->round +
2021: (long long)d->delta * s->round;
2022: s->delta = pos / (int)d->round;
1.12 ratchov 2023: s->delta_rem = pos % d->round;
1.79 ratchov 2024: if (s->delta_rem < 0) {
2025: s->delta_rem += d->round;
2026: s->delta--;
2027: }
1.12 ratchov 2028:
1.1 ratchov 2029: #ifdef DEBUG
1.17 ratchov 2030: if (log_level >= 2) {
1.1 ratchov 2031: slot_log(s);
2032: log_puts(": attached at ");
1.79 ratchov 2033: log_puti(s->delta);
2034: log_puts(" + ");
2035: log_puti(s->delta_rem);
2036: log_puts("/");
2037: log_puti(s->round);
1.1 ratchov 2038: log_puts("\n");
2039: }
2040: #endif
2041:
2042: /*
2043: * We dont check whether the device is dying,
2044: * because dev_xxx() functions are supposed to
2045: * work (i.e., not to crash)
2046: */
2047: #ifdef DEBUG
2048: if ((s->mode & d->mode) != s->mode) {
2049: slot_log(s);
1.24 ratchov 2050: log_puts(": mode beyond device mode, not attaching\n");
1.1 ratchov 2051: panic();
2052: }
2053: #endif
2054: s->next = d->slot_list;
2055: d->slot_list = s;
2056: if (s->mode & MODE_PLAY) {
2057: s->mix.vol = MIDI_TO_ADATA(s->vol);
2058: dev_mix_adjvol(d);
2059: }
2060: }
2061:
2062: /*
2063: * if MMC is enabled, and try to attach all slots synchronously, else
2064: * simply attach the slot
2065: */
2066: void
2067: slot_ready(struct slot *s)
2068: {
1.3 ratchov 2069: /*
2070: * device may be disconnected, and if so we're called from
2071: * slot->ops->exit() on a closed device
1.23 ratchov 2072: */
1.3 ratchov 2073: if (s->dev->pstate == DEV_CFG)
2074: return;
1.79 ratchov 2075: if (!s->opt->mmc) {
1.1 ratchov 2076: slot_attach(s);
1.79 ratchov 2077: s->pstate = SLOT_RUN;
2078: } else
1.1 ratchov 2079: dev_sync_attach(s->dev);
2080: }
2081:
2082: /*
2083: * setup buffers & conversion layers, prepare the slot to receive data
2084: * (for playback) or start (recording).
2085: */
2086: void
2087: slot_start(struct slot *s)
2088: {
1.81 ! ratchov 2089: struct dev *d = s->dev;
1.1 ratchov 2090: #ifdef DEBUG
2091: if (s->pstate != SLOT_INIT) {
2092: slot_log(s);
2093: log_puts(": slot_start: wrong state\n");
2094: panic();
2095: }
2096: if (s->mode & MODE_PLAY) {
2097: if (log_level >= 3) {
2098: slot_log(s);
2099: log_puts(": playing ");
2100: aparams_log(&s->par);
2101: log_puts(" -> ");
1.81 ! ratchov 2102: aparams_log(&d->par);
1.1 ratchov 2103: log_puts("\n");
2104: }
2105: }
2106: if (s->mode & MODE_RECMASK) {
2107: if (log_level >= 3) {
2108: slot_log(s);
2109: log_puts(": recording ");
2110: aparams_log(&s->par);
2111: log_puts(" <- ");
1.81 ! ratchov 2112: aparams_log(&d->par);
1.1 ratchov 2113: log_puts("\n");
1.35 ratchov 2114: }
1.1 ratchov 2115: }
2116: #endif
1.35 ratchov 2117: slot_allocbufs(s);
1.47 ratchov 2118:
2119: if (s->mode & MODE_RECMASK) {
2120: /*
2121: * N-th recorded block is the N-th played block
2122: */
1.81 ! ratchov 2123: s->sub.prime = -dev_getpos(d) / d->round;
1.47 ratchov 2124: }
2125: s->skip = 0;
2126:
1.79 ratchov 2127: /*
2128: * get the current position, the origin is when the first sample
2129: * played and/or recorded
2130: */
1.81 ! ratchov 2131: s->delta = dev_getpos(d) * (int)s->round / (int)d->round;
1.79 ratchov 2132: s->delta_rem = 0;
2133:
1.1 ratchov 2134: if (s->mode & MODE_PLAY) {
2135: s->pstate = SLOT_START;
2136: } else {
2137: s->pstate = SLOT_READY;
2138: slot_ready(s);
2139: }
2140: }
2141:
2142: /*
2143: * stop playback and recording, and free conversion layers
2144: */
2145: void
2146: slot_detach(struct slot *s)
2147: {
2148: struct slot **ps;
1.81 ! ratchov 2149: struct dev *d = s->dev;
1.79 ratchov 2150: long long pos;
1.1 ratchov 2151:
1.81 ! ratchov 2152: for (ps = &d->slot_list; *ps != s; ps = &(*ps)->next) {
1.1 ratchov 2153: #ifdef DEBUG
1.28 ratchov 2154: if (*ps == NULL) {
1.1 ratchov 2155: slot_log(s);
2156: log_puts(": can't detach, not on list\n");
2157: panic();
2158: }
2159: #endif
1.23 ratchov 2160: }
1.1 ratchov 2161: *ps = s->next;
1.79 ratchov 2162:
2163: /*
2164: * adjust clock, go back d->delta ticks so that slot_attach()
2165: * could be called with the resulting state
2166: */
2167: pos = s->delta_rem +
2168: (long long)s->delta * d->round -
2169: (long long)d->delta * s->round;
2170: s->delta = pos / (int)d->round;
2171: s->delta_rem = pos % d->round;
2172: if (s->delta_rem < 0) {
2173: s->delta_rem += d->round;
2174: s->delta--;
2175: }
2176:
2177: #ifdef DEBUG
2178: if (log_level >= 2) {
2179: slot_log(s);
2180: log_puts(": detached at ");
2181: log_puti(s->delta);
2182: log_puts(" + ");
2183: log_puti(s->delta_rem);
2184: log_puts("/");
2185: log_puti(d->round);
2186: log_puts("\n");
2187: }
2188: #endif
1.35 ratchov 2189: if (s->mode & MODE_PLAY)
1.81 ! ratchov 2190: dev_mix_adjvol(d);
1.1 ratchov 2191: }
2192:
2193: /*
2194: * put the slot in stopping state (draining play buffers) or
2195: * stop & detach if no data to drain.
2196: */
2197: void
2198: slot_stop(struct slot *s)
2199: {
2200: #ifdef DEBUG
2201: if (log_level >= 3) {
2202: slot_log(s);
2203: log_puts(": stopping\n");
2204: }
2205: #endif
2206: if (s->pstate == SLOT_START) {
1.33 ratchov 2207: /*
2208: * If in rec-only mode, we're already in the READY or
2209: * RUN states. We're here because the play buffer was
2210: * not full enough, try to start so it's drained.
2211: */
2212: s->pstate = SLOT_READY;
2213: slot_ready(s);
1.1 ratchov 2214: }
1.34 ratchov 2215:
2216: if (s->pstate == SLOT_RUN) {
2217: if (s->mode & MODE_PLAY) {
2218: /*
2219: * Don't detach, dev_cycle() will do it for us
2220: * when the buffer is drained.
2221: */
2222: s->pstate = SLOT_STOP;
2223: return;
2224: }
2225: slot_detach(s);
2226: } else {
1.1 ratchov 2227: #ifdef DEBUG
2228: if (log_level >= 3) {
2229: slot_log(s);
2230: log_puts(": not drained (blocked by mmc)\n");
2231: }
2232: #endif
2233: }
1.35 ratchov 2234:
1.34 ratchov 2235: s->pstate = SLOT_INIT;
2236: s->ops->eof(s->arg);
1.35 ratchov 2237: slot_freebufs(s);
1.1 ratchov 2238: }
2239:
1.12 ratchov 2240: void
2241: slot_skip_update(struct slot *s)
2242: {
2243: int skip;
2244:
2245: skip = slot_skip(s);
2246: while (skip > 0) {
2247: #ifdef DEBUG
2248: if (log_level >= 4) {
2249: slot_log(s);
2250: log_puts(": catching skipped block\n");
2251: }
2252: #endif
2253: if (s->mode & MODE_RECMASK)
2254: s->ops->flush(s->arg);
2255: if (s->mode & MODE_PLAY)
2256: s->ops->fill(s->arg);
2257: skip--;
2258: }
2259: }
2260:
1.1 ratchov 2261: /*
2262: * notify the slot that we just wrote in the play buffer, must be called
2263: * after each write
2264: */
2265: void
2266: slot_write(struct slot *s)
2267: {
2268: if (s->pstate == SLOT_START && s->mix.buf.used == s->mix.buf.len) {
2269: #ifdef DEBUG
2270: if (log_level >= 4) {
2271: slot_log(s);
2272: log_puts(": switching to READY state\n");
2273: }
2274: #endif
2275: s->pstate = SLOT_READY;
2276: slot_ready(s);
2277: }
1.12 ratchov 2278: slot_skip_update(s);
1.1 ratchov 2279: }
2280:
2281: /*
2282: * notify the slot that we freed some space in the rec buffer
2283: */
2284: void
2285: slot_read(struct slot *s)
2286: {
1.12 ratchov 2287: slot_skip_update(s);
1.64 ratchov 2288: }
2289:
2290: /*
2291: * allocate at control slot
2292: */
2293: struct ctlslot *
2294: ctlslot_new(struct dev *d, struct ctlops *ops, void *arg)
2295: {
2296: struct ctlslot *s;
2297: struct ctl *c;
2298: int i;
2299:
2300: i = 0;
2301: for (;;) {
2302: if (i == DEV_NCTLSLOT)
2303: return NULL;
2304: s = d->ctlslot + i;
2305: if (s->ops == NULL)
2306: break;
2307: i++;
2308: }
2309: s->dev = d;
2310: s->mask = 1 << i;
2311: if (!dev_ref(d))
2312: return NULL;
2313: s->ops = ops;
2314: s->arg = arg;
2315: for (c = d->ctl_list; c != NULL; c = c->next)
2316: c->refs_mask |= s->mask;
2317: return s;
2318: }
2319:
2320: /*
2321: * free control slot
2322: */
2323: void
2324: ctlslot_del(struct ctlslot *s)
2325: {
2326: struct ctl *c, **pc;
2327:
2328: pc = &s->dev->ctl_list;
2329: while ((c = *pc) != NULL) {
2330: c->refs_mask &= ~s->mask;
2331: if (c->refs_mask == 0) {
2332: *pc = c->next;
2333: xfree(c);
2334: } else
2335: pc = &c->next;
2336: }
2337: s->ops = NULL;
2338: dev_unref(s->dev);
2339: }
2340:
2341: void
2342: ctl_node_log(struct ctl_node *c)
2343: {
2344: log_puts(c->name);
2345: if (c->unit >= 0)
2346: log_putu(c->unit);
2347: }
2348:
2349: void
2350: ctl_log(struct ctl *c)
2351: {
2352: if (c->group[0] != 0) {
2353: log_puts(c->group);
2354: log_puts("/");
2355: }
2356: ctl_node_log(&c->node0);
2357: log_puts(".");
2358: log_puts(c->func);
2359: log_puts("=");
2360: switch (c->type) {
1.67 ratchov 2361: case CTL_NONE:
2362: log_puts("none");
2363: break;
1.64 ratchov 2364: case CTL_NUM:
2365: case CTL_SW:
2366: log_putu(c->curval);
2367: break;
2368: case CTL_VEC:
2369: case CTL_LIST:
1.74 ratchov 2370: case CTL_SEL:
1.64 ratchov 2371: ctl_node_log(&c->node1);
2372: log_puts(":");
2373: log_putu(c->curval);
2374: }
2375: log_puts(" at ");
2376: log_putu(c->addr);
2377: }
2378:
2379: /*
2380: * add a ctl
2381: */
2382: struct ctl *
2383: dev_addctl(struct dev *d, char *gstr, int type, int addr,
2384: char *str0, int unit0, char *func, char *str1, int unit1, int maxval, int val)
2385: {
2386: struct ctl *c, **pc;
2387: int i;
2388:
2389: c = xmalloc(sizeof(struct ctl));
2390: c->type = type;
2391: strlcpy(c->func, func, CTL_NAMEMAX);
2392: strlcpy(c->group, gstr, CTL_NAMEMAX);
2393: strlcpy(c->node0.name, str0, CTL_NAMEMAX);
2394: c->node0.unit = unit0;
1.74 ratchov 2395: if (c->type == CTL_VEC || c->type == CTL_LIST || c->type == CTL_SEL) {
1.64 ratchov 2396: strlcpy(c->node1.name, str1, CTL_NAMEMAX);
2397: c->node1.unit = unit1;
2398: } else
2399: memset(&c->node1, 0, sizeof(struct ctl_node));
2400: c->addr = addr;
2401: c->maxval = maxval;
2402: c->val_mask = ~0;
2403: c->desc_mask = ~0;
2404: c->curval = val;
2405: c->dirty = 0;
2406: c->refs_mask = 0;
2407: for (i = 0; i < DEV_NCTLSLOT; i++) {
2408: c->refs_mask |= CTL_DEVMASK;
2409: if (d->ctlslot[i].ops != NULL)
2410: c->refs_mask |= 1 << i;
2411: }
2412: for (pc = &d->ctl_list; *pc != NULL; pc = &(*pc)->next)
2413: ; /* nothing */
2414: c->next = NULL;
2415: *pc = c;
2416: #ifdef DEBUG
2417: if (log_level >= 3) {
2418: dev_log(d);
2419: log_puts(": adding ");
2420: ctl_log(c);
2421: log_puts("\n");
2422: }
2423: #endif
2424: return c;
2425: }
2426:
2427: void
2428: dev_rmctl(struct dev *d, int addr)
2429: {
2430: struct ctl *c, **pc;
2431:
2432: pc = &d->ctl_list;
2433: for (;;) {
2434: c = *pc;
2435: if (c == NULL)
2436: return;
2437: if (c->type != CTL_NONE && c->addr == addr)
2438: break;
2439: pc = &c->next;
2440: }
2441: c->type = CTL_NONE;
2442: #ifdef DEBUG
2443: if (log_level >= 3) {
2444: dev_log(d);
2445: log_puts(": removing ");
2446: ctl_log(c);
2447: log_puts(", refs_mask = 0x");
2448: log_putx(c->refs_mask);
2449: log_puts("\n");
2450: }
2451: #endif
2452: c->refs_mask &= ~CTL_DEVMASK;
1.68 ratchov 2453: if (c->refs_mask == 0) {
2454: *pc = c->next;
2455: xfree(c);
1.64 ratchov 2456: return;
1.68 ratchov 2457: }
2458: c->desc_mask = ~0;
1.65 ratchov 2459: }
2460:
2461: void
2462: dev_ctlsync(struct dev *d)
2463: {
1.70 ratchov 2464: struct ctl *c;
1.65 ratchov 2465: struct ctlslot *s;
1.70 ratchov 2466: int found, i;
2467:
2468: found = 0;
2469: for (c = d->ctl_list; c != NULL; c = c->next) {
2470: if (c->addr != CTLADDR_MASTER &&
2471: c->type == CTL_NUM &&
2472: strcmp(c->group, "") == 0 &&
2473: strcmp(c->node0.name, "output") == 0 &&
2474: strcmp(c->func, "level") == 0)
2475: found = 1;
2476: }
2477:
2478: if (d->master_enabled && found) {
2479: if (log_level >= 2) {
2480: dev_log(d);
2481: log_puts(": software master level control disabled\n");
2482: }
2483: d->master_enabled = 0;
2484: dev_rmctl(d, CTLADDR_MASTER);
2485: } else if (!d->master_enabled && !found) {
2486: if (log_level >= 2) {
2487: dev_log(d);
2488: log_puts(": software master level control enabled\n");
2489: }
2490: d->master_enabled = 1;
2491: dev_addctl(d, "", CTL_NUM, CTLADDR_MASTER,
2492: "output", -1, "level", NULL, -1, 127, d->master);
2493: }
1.65 ratchov 2494:
2495: for (s = d->ctlslot, i = DEV_NCTLSLOT; i > 0; i--, s++) {
2496: if (s->ops)
2497: s->ops->sync(s->arg);
2498: }
1.64 ratchov 2499: }
2500:
2501: int
2502: dev_setctl(struct dev *d, int addr, int val)
2503: {
2504: struct ctl *c;
2505: int num;
2506:
2507: c = d->ctl_list;
2508: for (;;) {
2509: if (c == NULL) {
2510: if (log_level >= 3) {
2511: dev_log(d);
2512: log_puts(": ");
2513: log_putu(addr);
2514: log_puts(": no such ctl address\n");
2515: }
2516: return 0;
2517: }
2518: if (c->type != CTL_NONE && c->addr == addr)
2519: break;
2520: c = c->next;
2521: }
2522: if (c->curval == val) {
2523: if (log_level >= 3) {
2524: ctl_log(c);
2525: log_puts(": already set\n");
2526: }
2527: return 1;
2528: }
2529: if (val < 0 || val > c->maxval) {
2530: if (log_level >= 3) {
2531: dev_log(d);
2532: log_puts(": ");
2533: log_putu(val);
2534: log_puts(": ctl val out of bounds\n");
2535: }
2536: return 0;
2537: }
2538: if (addr >= CTLADDR_END) {
2539: if (log_level >= 3) {
2540: ctl_log(c);
2541: log_puts(": marked as dirty\n");
2542: }
2543: c->dirty = 1;
2544: dev_ref(d);
2545: } else {
1.75 ratchov 2546: if (addr >= CTLADDR_ALT_SEL) {
2547: if (val) {
2548: num = addr - CTLADDR_ALT_SEL;
2549: dev_setalt(d, num);
2550: }
2551: return 1;
2552: } else if (addr == CTLADDR_MASTER) {
1.70 ratchov 2553: if (d->master_enabled) {
2554: dev_master(d, val);
2555: dev_midi_master(d);
2556: }
1.64 ratchov 2557: } else {
2558: num = addr - CTLADDR_SLOT_LEVEL(0);
2559: slot_setvol(d->slot + num, val);
2560: dev_midi_vol(d, d->slot + num);
2561: }
1.66 ratchov 2562: c->val_mask = ~0U;
1.64 ratchov 2563: }
2564: c->curval = val;
2565: return 1;
2566: }
2567:
2568: int
2569: dev_onval(struct dev *d, int addr, int val)
2570: {
2571: struct ctl *c;
2572:
2573: c = d->ctl_list;
2574: for (;;) {
2575: if (c == NULL)
2576: return 0;
2577: if (c->type != CTL_NONE && c->addr == addr)
2578: break;
2579: c = c->next;
2580: }
2581: c->curval = val;
2582: c->val_mask = ~0U;
2583: return 1;
2584: }
2585:
2586: void
2587: dev_label(struct dev *d, int i)
2588: {
2589: struct ctl *c;
2590: char name[CTL_NAMEMAX];
2591:
1.69 ratchov 2592: slot_ctlname(&d->slot[i], name, CTL_NAMEMAX);
2593:
1.64 ratchov 2594: c = d->ctl_list;
2595: for (;;) {
1.69 ratchov 2596: if (c == NULL) {
2597: dev_addctl(d, "app", CTL_NUM,
2598: CTLADDR_SLOT_LEVEL(i),
2599: name, -1, "level",
2600: NULL, -1, 127, d->slot[i].vol);
1.64 ratchov 2601: return;
1.69 ratchov 2602: }
1.64 ratchov 2603: if (c->addr == CTLADDR_SLOT_LEVEL(i))
2604: break;
2605: c = c->next;
2606: }
2607: if (strcmp(c->node0.name, name) == 0)
2608: return;
2609: strlcpy(c->node0.name, name, CTL_NAMEMAX);
2610: c->desc_mask = ~0;
1.1 ratchov 2611: }