![[BACK]](/icons/back.gif){kind=icon}
Return to dev.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / sndiod|
Return to dev.c CVS log | Up to [local] / src / usr.bin / sndiod |
1.79 ! ratchov 1: /* $OpenBSD: dev.c,v 1.78 2021/01/28 11:02:28 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;
951: pos = (long long)delta * s->round + s->delta_rem;
952: s->delta_rem = pos % d->round;
953: s->delta += pos / (int)d->round;
954: if (s->delta >= 0)
1.14 ratchov 955: s->ops->onmove(s->arg);
1.1 ratchov 956: }
957: if (d->tstate == MMC_RUN)
958: dev_midi_qfr(d, delta);
959: }
960:
961: void
962: dev_master(struct dev *d, unsigned int master)
963: {
1.70 ratchov 964: struct ctl *c;
965: unsigned int v;
966:
1.1 ratchov 967: if (log_level >= 2) {
968: dev_log(d);
969: log_puts(": master volume set to ");
970: log_putu(master);
971: log_puts("\n");
972: }
1.70 ratchov 973: if (d->master_enabled) {
974: d->master = master;
975: if (d->mode & MODE_PLAY)
976: dev_mix_adjvol(d);
977: } else {
978: for (c = d->ctl_list; c != NULL; c = c->next) {
979: if (c->type != CTL_NUM ||
980: strcmp(c->group, "") != 0 ||
981: strcmp(c->node0.name, "output") != 0 ||
982: strcmp(c->func, "level") != 0)
983: continue;
984: v = (master * c->maxval + 64) / 127;
985: dev_setctl(d, c->addr, v);
986: }
987: }
1.1 ratchov 988: }
989:
990: /*
991: * return the latency that a stream would have if it's attached
992: */
993: int
994: dev_getpos(struct dev *d)
995: {
996: return (d->mode & MODE_PLAY) ? -d->bufsz : 0;
997: }
998:
999: /*
1000: * Create a sndio device
1001: */
1002: struct dev *
1003: dev_new(char *path, struct aparams *par,
1004: unsigned int mode, unsigned int bufsz, unsigned int round,
1005: unsigned int rate, unsigned int hold, unsigned int autovol)
1006: {
1007: struct dev *d;
1008: unsigned int i;
1009:
1010: if (dev_sndnum == DEV_NMAX) {
1011: if (log_level >= 1)
1012: log_puts("too many devices\n");
1013: return NULL;
1014: }
1015: d = xmalloc(sizeof(struct dev));
1.73 ratchov 1016: d->alt_list = NULL;
1017: dev_addname(d,path);
1.1 ratchov 1018: d->num = dev_sndnum++;
1.36 ratchov 1019: d->opt_list = NULL;
1.76 ratchov 1020: d->alt_num = -1;
1.1 ratchov 1021:
1022: /*
1023: * XXX: below, we allocate a midi input buffer, since we don't
1024: * receive raw midi data, so no need to allocate a input
1025: * ibuf. Possibly set imsg & fill callbacks to NULL and
1026: * use this to in midi_new() to check if buffers need to be
1027: * allocated
1028: */
1029: d->midi = midi_new(&dev_midiops, d, MODE_MIDIIN | MODE_MIDIOUT);
1030: midi_tag(d->midi, d->num);
1031: d->reqpar = *par;
1032: d->reqmode = mode;
1033: d->reqpchan = d->reqrchan = 0;
1034: d->reqbufsz = bufsz;
1035: d->reqround = round;
1036: d->reqrate = rate;
1037: d->hold = hold;
1038: d->autovol = autovol;
1039: d->refcnt = 0;
1040: d->pstate = DEV_CFG;
1041: d->serial = 0;
1042: for (i = 0; i < DEV_NSLOT; i++) {
1043: d->slot[i].unit = i;
1044: d->slot[i].ops = NULL;
1045: d->slot[i].vol = MIDI_MAXCTL;
1046: d->slot[i].serial = d->serial++;
1.69 ratchov 1047: memset(d->slot[i].name, 0, SLOT_NAMEMAX);
1.1 ratchov 1048: }
1.64 ratchov 1049: for (i = 0; i < DEV_NCTLSLOT; i++) {
1050: d->ctlslot[i].ops = NULL;
1051: d->ctlslot[i].dev = d;
1052: d->ctlslot[i].mask = 0;
1053: d->ctlslot[i].mode = 0;
1054: }
1.1 ratchov 1055: d->slot_list = NULL;
1056: d->master = MIDI_MAXCTL;
1057: d->mtc.origin = 0;
1058: d->tstate = MMC_STOP;
1.64 ratchov 1059: d->ctl_list = NULL;
1.1 ratchov 1060: d->next = dev_list;
1061: dev_list = d;
1062: return d;
1063: }
1064:
1065: /*
1.73 ratchov 1066: * add a alternate name
1067: */
1068: int
1069: dev_addname(struct dev *d, char *name)
1070: {
1071: struct dev_alt *a;
1072:
1073: if (d->alt_list != NULL && d->alt_list->idx == DEV_NMAX - 1) {
1074: log_puts(name);
1075: log_puts(": too many alternate names\n");
1076: return 0;
1077: }
1078: a = xmalloc(sizeof(struct dev_alt));
1079: a->name = name;
1080: a->idx = (d->alt_list == NULL) ? 0 : d->alt_list->idx + 1;
1081: a->next = d->alt_list;
1082: d->alt_list = a;
1083: return 1;
1084: }
1085:
1086: /*
1.75 ratchov 1087: * set prefered alt device name
1088: */
1089: void
1090: dev_setalt(struct dev *d, unsigned int idx)
1091: {
1092: struct dev_alt **pa, *a;
1093:
1094: /* find alt with given index */
1095: for (pa = &d->alt_list; (a = *pa)->idx != idx; pa = &a->next)
1096: ;
1097:
1098: /* detach from list */
1099: *pa = a->next;
1100:
1101: /* attach at head */
1102: a->next = d->alt_list;
1103: d->alt_list = a;
1104:
1105: /* reopen device with the new alt */
1106: if (idx != d->alt_num)
1107: dev_reopen(d);
1108: }
1109:
1110: /*
1.1 ratchov 1111: * adjust device parameters and mode
1112: */
1113: void
1114: dev_adjpar(struct dev *d, int mode,
1.25 ratchov 1115: int pmax, int rmax)
1.1 ratchov 1116: {
1117: d->reqmode |= mode & MODE_AUDIOMASK;
1118: if (mode & MODE_PLAY) {
1119: if (d->reqpchan < pmax + 1)
1120: d->reqpchan = pmax + 1;
1121: }
1122: if (mode & MODE_REC) {
1123: if (d->reqrchan < rmax + 1)
1124: d->reqrchan = rmax + 1;
1125: }
1126: }
1127:
1128: /*
1129: * Open the device with the dev_reqxxx capabilities. Setup a mixer, demuxer,
1130: * monitor, midi control, and any necessary conversions.
1131: */
1132: int
1.59 ratchov 1133: dev_allocbufs(struct dev *d)
1.1 ratchov 1134: {
1135: if (d->mode & MODE_REC) {
1136: /*
1137: * Create device <-> demuxer buffer
1138: */
1139: d->rbuf = xmalloc(d->round * d->rchan * sizeof(adata_t));
1140:
1141: /*
1142: * Insert a converter, if needed.
1143: */
1144: if (!aparams_native(&d->par)) {
1145: dec_init(&d->dec, &d->par, d->rchan);
1146: d->decbuf = xmalloc(d->round * d->rchan * d->par.bps);
1147: } else
1148: d->decbuf = NULL;
1149: }
1150: if (d->mode & MODE_PLAY) {
1151: /*
1152: * Create device <-> mixer buffer
1153: */
1154: d->poffs = 0;
1.15 ratchov 1155: d->psize = d->bufsz + d->round;
1156: d->pbuf = xmalloc(d->psize * d->pchan * sizeof(adata_t));
1.1 ratchov 1157: d->mode |= MODE_MON;
1158:
1159: /*
1160: * Append a converter, if needed.
1161: */
1162: if (!aparams_native(&d->par)) {
1163: enc_init(&d->enc, &d->par, d->pchan);
1164: d->encbuf = xmalloc(d->round * d->pchan * d->par.bps);
1165: } else
1166: d->encbuf = NULL;
1167: }
1168: if (log_level >= 2) {
1169: dev_log(d);
1170: log_puts(": ");
1171: log_putu(d->rate);
1172: log_puts("Hz, ");
1173: aparams_log(&d->par);
1174: if (d->mode & MODE_PLAY) {
1175: log_puts(", play 0:");
1176: log_puti(d->pchan - 1);
1177: }
1178: if (d->mode & MODE_REC) {
1179: log_puts(", rec 0:");
1180: log_puti(d->rchan - 1);
1181: }
1182: log_puts(", ");
1183: log_putu(d->bufsz / d->round);
1184: log_puts(" blocks of ");
1185: log_putu(d->round);
1186: log_puts(" frames\n");
1187: }
1.57 ratchov 1188: return 1;
1189: }
1190:
1191: /*
1192: * Reset parameters and open the device.
1193: */
1194: int
1195: dev_open(struct dev *d)
1196: {
1.64 ratchov 1197: int i;
1198: char name[CTL_NAMEMAX];
1.75 ratchov 1199: struct dev_alt *a;
1.64 ratchov 1200:
1.70 ratchov 1201: d->master_enabled = 0;
1.57 ratchov 1202: d->mode = d->reqmode;
1203: d->round = d->reqround;
1204: d->bufsz = d->reqbufsz;
1205: d->rate = d->reqrate;
1206: d->pchan = d->reqpchan;
1207: d->rchan = d->reqrchan;
1208: d->par = d->reqpar;
1209: if (d->pchan == 0)
1210: d->pchan = 2;
1211: if (d->rchan == 0)
1212: d->rchan = 2;
1.59 ratchov 1213: if (!dev_sio_open(d)) {
1214: if (log_level >= 1) {
1215: dev_log(d);
1216: log_puts(": failed to open audio device\n");
1217: }
1218: return 0;
1219: }
1220: if (!dev_allocbufs(d))
1.57 ratchov 1221: return 0;
1.64 ratchov 1222:
1223: for (i = 0; i < DEV_NSLOT; i++) {
1.69 ratchov 1224: if (d->slot[i].name[0] == 0)
1225: continue;
1.64 ratchov 1226: slot_ctlname(&d->slot[i], name, CTL_NAMEMAX);
1227: dev_addctl(d, "app", CTL_NUM,
1228: CTLADDR_SLOT_LEVEL(i),
1229: name, -1, "level",
1230: NULL, -1, 127, d->slot[i].vol);
1231: }
1232:
1.77 ratchov 1233: /* if there are multiple alt devs, add server.device knob */
1234: if (d->alt_list->next != NULL) {
1235: for (a = d->alt_list; a != NULL; a = a->next) {
1236: snprintf(name, sizeof(name), "%d", a->idx);
1237: dev_addctl(d, "", CTL_SEL,
1238: CTLADDR_ALT_SEL + a->idx,
1239: "server", -1, "device",
1240: name, -1, 1, a->idx == d->alt_num);
1241: }
1.75 ratchov 1242: }
1243:
1.59 ratchov 1244: d->pstate = DEV_INIT;
1.1 ratchov 1245: return 1;
1246: }
1247:
1248: /*
1.72 ratchov 1249: * Force all slots to exit and close device, called after an error
1.55 ratchov 1250: */
1251: void
1.72 ratchov 1252: dev_abort(struct dev *d)
1.55 ratchov 1253: {
1254: int i;
1255: struct slot *s;
1.64 ratchov 1256: struct ctlslot *c;
1.55 ratchov 1257:
1258: for (s = d->slot, i = DEV_NSLOT; i > 0; i--, s++) {
1259: if (s->ops)
1260: s->ops->exit(s->arg);
1261: s->ops = NULL;
1262: }
1263: d->slot_list = NULL;
1.64 ratchov 1264:
1265: for (c = d->ctlslot, i = DEV_NCTLSLOT; i > 0; i--, c++) {
1266: if (c->ops)
1267: c->ops->exit(c->arg);
1268: c->ops = NULL;
1269: }
1.72 ratchov 1270:
1271: if (d->pstate != DEV_CFG)
1272: dev_close(d);
1.55 ratchov 1273: }
1274:
1275: /*
1.1 ratchov 1276: * force the device to go in DEV_CFG state, the caller is supposed to
1277: * ensure buffers are drained
1278: */
1279: void
1.59 ratchov 1280: dev_freebufs(struct dev *d)
1.1 ratchov 1281: {
1282: #ifdef DEBUG
1283: if (log_level >= 3) {
1284: dev_log(d);
1285: log_puts(": closing\n");
1286: }
1287: #endif
1288: if (d->mode & MODE_PLAY) {
1289: if (d->encbuf != NULL)
1290: xfree(d->encbuf);
1291: xfree(d->pbuf);
1292: }
1293: if (d->mode & MODE_REC) {
1294: if (d->decbuf != NULL)
1295: xfree(d->decbuf);
1296: xfree(d->rbuf);
1297: }
1.58 ratchov 1298: }
1299:
1300: /*
1301: * Close the device and exit all slots
1302: */
1303: void
1304: dev_close(struct dev *d)
1305: {
1.64 ratchov 1306: struct ctl *c;
1307:
1.59 ratchov 1308: d->pstate = DEV_CFG;
1309: dev_sio_close(d);
1310: dev_freebufs(d);
1.64 ratchov 1311:
1312: /* there are no clients, just free remaining local controls */
1313: while ((c = d->ctl_list) != NULL) {
1314: d->ctl_list = c->next;
1315: xfree(c);
1316: }
1.1 ratchov 1317: }
1318:
1.62 ratchov 1319: /*
1320: * Close the device, but attempt to migrate everything to a new sndio
1321: * device.
1322: */
1323: int
1324: dev_reopen(struct dev *d)
1325: {
1326: struct slot *s;
1327: long long pos;
1328: unsigned int pstate;
1329: int delta;
1330:
1331: /* not opened */
1332: if (d->pstate == DEV_CFG)
1333: return 1;
1334:
1335: /* save state */
1336: delta = d->delta;
1337: pstate = d->pstate;
1338:
1339: if (!dev_sio_reopen(d))
1340: return 0;
1341:
1342: /* reopen returns a stopped device */
1343: d->pstate = DEV_INIT;
1344:
1345: /* reallocate new buffers, with new parameters */
1346: dev_freebufs(d);
1347: dev_allocbufs(d);
1348:
1349: /*
1350: * adjust time positions, make anything go back delta ticks, so
1351: * that the new device can start at zero
1352: */
1353: for (s = d->slot_list; s != NULL; s = s->next) {
1354: pos = (long long)s->delta * d->round + s->delta_rem;
1355: pos -= (long long)delta * s->round;
1356: s->delta_rem = pos % (int)d->round;
1357: s->delta = pos / (int)d->round;
1358: if (log_level >= 3) {
1359: slot_log(s);
1360: log_puts(": adjusted: delta -> ");
1361: log_puti(s->delta);
1362: log_puts(", delta_rem -> ");
1363: log_puti(s->delta_rem);
1364: log_puts("\n");
1365: }
1366:
1367: /* reinitilize the format conversion chain */
1368: slot_initconv(s);
1369: }
1370: if (d->tstate == MMC_RUN) {
1371: d->mtc.delta -= delta * MTC_SEC;
1372: if (log_level >= 2) {
1373: dev_log(d);
1374: log_puts(": adjusted mtc: delta ->");
1375: log_puti(d->mtc.delta);
1376: log_puts("\n");
1377: }
1378: }
1379:
1.71 ratchov 1380: /* remove old controls and add new ones */
1381: dev_sioctl_close(d);
1.64 ratchov 1382: dev_sioctl_open(d);
1383:
1.62 ratchov 1384: /* start the device if needed */
1385: if (pstate == DEV_RUN)
1386: dev_wakeup(d);
1387:
1388: return 1;
1389: }
1390:
1.1 ratchov 1391: int
1392: dev_ref(struct dev *d)
1393: {
1394: #ifdef DEBUG
1395: if (log_level >= 3) {
1396: dev_log(d);
1397: log_puts(": device requested\n");
1398: }
1399: #endif
1400: if (d->pstate == DEV_CFG && !dev_open(d))
1401: return 0;
1402: d->refcnt++;
1403: return 1;
1404: }
1405:
1406: void
1407: dev_unref(struct dev *d)
1408: {
1409: #ifdef DEBUG
1410: if (log_level >= 3) {
1411: dev_log(d);
1412: log_puts(": device released\n");
1413: }
1414: #endif
1415: d->refcnt--;
1416: if (d->refcnt == 0 && d->pstate == DEV_INIT)
1417: dev_close(d);
1418: }
1419:
1420: /*
1421: * initialize the device with the current parameters
1422: */
1423: int
1424: dev_init(struct dev *d)
1425: {
1426: if ((d->reqmode & MODE_AUDIOMASK) == 0) {
1427: #ifdef DEBUG
1428: dev_log(d);
1429: log_puts(": has no streams\n");
1430: #endif
1431: return 0;
1432: }
1433: if (d->hold && !dev_ref(d))
1434: return 0;
1435: return 1;
1436: }
1437:
1438: /*
1439: * Unless the device is already in process of closing, request it to close
1440: */
1441: void
1442: dev_done(struct dev *d)
1443: {
1444: #ifdef DEBUG
1445: if (log_level >= 3) {
1446: dev_log(d);
1447: log_puts(": draining\n");
1448: }
1449: #endif
1.20 ratchov 1450: if (d->tstate != MMC_STOP)
1451: dev_mmcstop(d);
1.1 ratchov 1452: if (d->hold)
1453: dev_unref(d);
1454: }
1455:
1456: struct dev *
1457: dev_bynum(int num)
1458: {
1459: struct dev *d;
1460:
1461: for (d = dev_list; d != NULL; d = d->next) {
1.19 ratchov 1462: if (d->num == num)
1.1 ratchov 1463: return d;
1464: }
1465: return NULL;
1466: }
1467:
1468: /*
1469: * Free the device
1470: */
1471: void
1472: dev_del(struct dev *d)
1473: {
1474: struct dev **p;
1.73 ratchov 1475: struct dev_alt *a;
1.1 ratchov 1476:
1477: #ifdef DEBUG
1478: if (log_level >= 3) {
1479: dev_log(d);
1480: log_puts(": deleting\n");
1481: }
1482: #endif
1.36 ratchov 1483: while (d->opt_list != NULL)
1484: opt_del(d, d->opt_list);
1.1 ratchov 1485: if (d->pstate != DEV_CFG)
1486: dev_close(d);
1487: for (p = &dev_list; *p != d; p = &(*p)->next) {
1488: #ifdef DEBUG
1489: if (*p == NULL) {
1490: dev_log(d);
1491: log_puts(": device to delete not on the list\n");
1492: panic();
1493: }
1494: #endif
1495: }
1496: midi_del(d->midi);
1497: *p = d->next;
1.73 ratchov 1498: while ((a = d->alt_list) != NULL) {
1499: d->alt_list = a->next;
1500: xfree(a);
1501: }
1.1 ratchov 1502: xfree(d);
1503: }
1504:
1505: unsigned int
1506: dev_roundof(struct dev *d, unsigned int newrate)
1507: {
1508: return (d->round * newrate + d->rate / 2) / d->rate;
1509: }
1510:
1511: /*
1512: * If the device is paused, then resume it.
1513: */
1514: void
1515: dev_wakeup(struct dev *d)
1516: {
1517: if (d->pstate == DEV_INIT) {
1518: if (log_level >= 2) {
1519: dev_log(d);
1520: log_puts(": device started\n");
1521: }
1522: if (d->mode & MODE_PLAY) {
1523: d->prime = d->bufsz;
1524: } else {
1525: d->prime = 0;
1526: }
1.16 ratchov 1527: d->poffs = 0;
1.12 ratchov 1528:
1.23 ratchov 1529: /*
1.16 ratchov 1530: * empty cycles don't increment delta, so it's ok to
1531: * start at 0
1532: **/
1.23 ratchov 1533: d->delta = 0;
1.12 ratchov 1534:
1.1 ratchov 1535: d->pstate = DEV_RUN;
1536: dev_sio_start(d);
1537: }
1538: }
1539:
1540: /*
1541: * check that all clients controlled by MMC are ready to start, if so,
1542: * attach them all at the same position
1543: */
1544: void
1545: dev_sync_attach(struct dev *d)
1546: {
1547: int i;
1548: struct slot *s;
1549:
1550: if (d->tstate != MMC_START) {
1551: if (log_level >= 2) {
1552: dev_log(d);
1553: log_puts(": not started by mmc yet, waiting...\n");
1554: }
1555: return;
1556: }
1557: for (i = 0; i < DEV_NSLOT; i++) {
1558: s = d->slot + i;
1.46 ratchov 1559: if (!s->ops || !s->opt->mmc)
1.1 ratchov 1560: continue;
1.46 ratchov 1561: if (s->pstate != SLOT_READY) {
1.1 ratchov 1562: #ifdef DEBUG
1563: if (log_level >= 3) {
1564: slot_log(s);
1565: log_puts(": not ready, start delayed\n");
1566: }
1567: #endif
1568: return;
1569: }
1570: }
1571: if (!dev_ref(d))
1572: return;
1573: for (i = 0; i < DEV_NSLOT; i++) {
1574: s = d->slot + i;
1.46 ratchov 1575: if (!s->ops || !s->opt->mmc)
1.1 ratchov 1576: continue;
1.46 ratchov 1577: slot_attach(s);
1.79 ! ratchov 1578: s->pstate = SLOT_RUN;
1.1 ratchov 1579: }
1580: d->tstate = MMC_RUN;
1581: dev_midi_full(d);
1582: dev_wakeup(d);
1583: }
1584:
1585: /*
1586: * start all slots simultaneously
1587: */
1588: void
1589: dev_mmcstart(struct dev *d)
1590: {
1591: if (d->tstate == MMC_STOP) {
1592: d->tstate = MMC_START;
1593: dev_sync_attach(d);
1594: #ifdef DEBUG
1595: } else {
1596: if (log_level >= 3) {
1597: dev_log(d);
1598: log_puts(": ignoring mmc start\n");
1599: }
1600: #endif
1601: }
1602: }
1603:
1604: /*
1605: * stop all slots simultaneously
1606: */
1607: void
1608: dev_mmcstop(struct dev *d)
1609: {
1610: switch (d->tstate) {
1611: case MMC_START:
1612: d->tstate = MMC_STOP;
1613: return;
1614: case MMC_RUN:
1615: d->tstate = MMC_STOP;
1616: dev_unref(d);
1617: break;
1618: default:
1619: #ifdef DEBUG
1620: if (log_level >= 3) {
1621: dev_log(d);
1622: log_puts(": ignored mmc stop\n");
1623: }
1624: #endif
1625: return;
1626: }
1627: }
1628:
1629: /*
1630: * relocate all slots simultaneously
1631: */
1632: void
1633: dev_mmcloc(struct dev *d, unsigned int origin)
1634: {
1635: if (log_level >= 2) {
1636: dev_log(d);
1637: log_puts(": relocated to ");
1638: log_putu(origin);
1639: log_puts("\n");
1640: }
1641: if (d->tstate == MMC_RUN)
1642: dev_mmcstop(d);
1643: d->mtc.origin = origin;
1644: if (d->tstate == MMC_RUN)
1645: dev_mmcstart(d);
1646: }
1647:
1.35 ratchov 1648: /*
1649: * allocate buffers & conversion chain
1650: */
1651: void
1.60 ratchov 1652: slot_initconv(struct slot *s)
1.35 ratchov 1653: {
1.63 ratchov 1654: unsigned int dev_nch;
1.35 ratchov 1655: struct dev *d = s->dev;
1656:
1657: if (s->mode & MODE_PLAY) {
1658: cmap_init(&s->mix.cmap,
1.42 ratchov 1659: s->opt->pmin, s->opt->pmin + s->mix.nch - 1,
1660: s->opt->pmin, s->opt->pmin + s->mix.nch - 1,
1.35 ratchov 1661: 0, d->pchan - 1,
1.40 ratchov 1662: s->opt->pmin, s->opt->pmax);
1.35 ratchov 1663: if (!aparams_native(&s->par)) {
1.42 ratchov 1664: dec_init(&s->mix.dec, &s->par, s->mix.nch);
1.35 ratchov 1665: }
1666: if (s->rate != d->rate) {
1667: resamp_init(&s->mix.resamp, s->round, d->round,
1.42 ratchov 1668: s->mix.nch);
1.35 ratchov 1669: }
1.61 ratchov 1670: s->mix.join = 1;
1671: s->mix.expand = 1;
1.63 ratchov 1672: if (s->opt->dup && s->mix.cmap.nch > 0) {
1673: dev_nch = d->pchan < (s->opt->pmax + 1) ?
1674: d->pchan - s->opt->pmin :
1675: s->opt->pmax - s->opt->pmin + 1;
1676: if (dev_nch > s->mix.nch)
1677: s->mix.expand = dev_nch / s->mix.nch;
1678: else if (s->mix.nch > dev_nch)
1679: s->mix.join = s->mix.nch / dev_nch;
1.61 ratchov 1680: }
1.35 ratchov 1681: }
1682:
1683: if (s->mode & MODE_RECMASK) {
1.63 ratchov 1684: unsigned int outchan = (s->mode & MODE_MON) ?
1685: d->pchan : d->rchan;
1686:
1.35 ratchov 1687: cmap_init(&s->sub.cmap,
1.63 ratchov 1688: 0, outchan - 1,
1.40 ratchov 1689: s->opt->rmin, s->opt->rmax,
1.42 ratchov 1690: s->opt->rmin, s->opt->rmin + s->sub.nch - 1,
1691: s->opt->rmin, s->opt->rmin + s->sub.nch - 1);
1.35 ratchov 1692: if (s->rate != d->rate) {
1693: resamp_init(&s->sub.resamp, d->round, s->round,
1.42 ratchov 1694: s->sub.nch);
1.35 ratchov 1695: }
1696: if (!aparams_native(&s->par)) {
1.42 ratchov 1697: enc_init(&s->sub.enc, &s->par, s->sub.nch);
1.61 ratchov 1698: }
1699: s->sub.join = 1;
1700: s->sub.expand = 1;
1.63 ratchov 1701: if (s->opt->dup && s->sub.cmap.nch > 0) {
1702: dev_nch = outchan < (s->opt->rmax + 1) ?
1703: outchan - s->opt->rmin :
1704: s->opt->rmax - s->opt->rmin + 1;
1705: if (dev_nch > s->sub.nch)
1706: s->sub.join = dev_nch / s->sub.nch;
1707: else if (s->sub.nch > dev_nch)
1708: s->sub.expand = s->sub.nch / dev_nch;
1.35 ratchov 1709: }
1710:
1711: /*
1712: * cmap_copy() doesn't write samples in all channels,
1713: * for instance when mono->stereo conversion is
1714: * disabled. So we have to prefill cmap_copy() output
1715: * with silence.
1716: */
1717: if (s->sub.resampbuf) {
1718: memset(s->sub.resampbuf, 0,
1.42 ratchov 1719: d->round * s->sub.nch * sizeof(adata_t));
1.35 ratchov 1720: } else if (s->sub.encbuf) {
1721: memset(s->sub.encbuf, 0,
1.42 ratchov 1722: s->round * s->sub.nch * sizeof(adata_t));
1.35 ratchov 1723: } else {
1724: memset(s->sub.buf.data, 0,
1.42 ratchov 1725: s->appbufsz * s->sub.nch * sizeof(adata_t));
1.35 ratchov 1726: }
1727: }
1.60 ratchov 1728: }
1729:
1730: /*
1731: * allocate buffers & conversion chain
1732: */
1733: void
1734: slot_allocbufs(struct slot *s)
1735: {
1736: struct dev *d = s->dev;
1737:
1738: if (s->mode & MODE_PLAY) {
1739: s->mix.bpf = s->par.bps * s->mix.nch;
1740: abuf_init(&s->mix.buf, s->appbufsz * s->mix.bpf);
1741:
1742: s->mix.decbuf = NULL;
1743: s->mix.resampbuf = NULL;
1744: if (!aparams_native(&s->par)) {
1745: s->mix.decbuf =
1746: xmalloc(s->round * s->mix.nch * sizeof(adata_t));
1747: }
1748: if (s->rate != d->rate) {
1749: s->mix.resampbuf =
1750: xmalloc(d->round * s->mix.nch * sizeof(adata_t));
1751: }
1752: }
1753:
1754: if (s->mode & MODE_RECMASK) {
1755: s->sub.bpf = s->par.bps * s->sub.nch;
1756: abuf_init(&s->sub.buf, s->appbufsz * s->sub.bpf);
1757:
1758: s->sub.encbuf = NULL;
1759: s->sub.resampbuf = NULL;
1760: if (s->rate != d->rate) {
1761: s->sub.resampbuf =
1762: xmalloc(d->round * s->sub.nch * sizeof(adata_t));
1763: }
1764: if (!aparams_native(&s->par)) {
1765: s->sub.encbuf =
1766: xmalloc(s->round * s->sub.nch * sizeof(adata_t));
1767: }
1768: }
1769:
1770: slot_initconv(s);
1.35 ratchov 1771:
1772: #ifdef DEBUG
1773: if (log_level >= 3) {
1774: slot_log(s);
1775: log_puts(": allocated ");
1776: log_putu(s->appbufsz);
1777: log_puts("/");
1778: log_putu(SLOT_BUFSZ(s));
1779: log_puts(" fr buffers\n");
1780: }
1781: #endif
1782: }
1783:
1784: /*
1785: * free buffers & conversion chain
1786: */
1787: void
1788: slot_freebufs(struct slot *s)
1789: {
1790: if (s->mode & MODE_RECMASK) {
1791: abuf_done(&s->sub.buf);
1792: if (s->sub.encbuf)
1793: xfree(s->sub.encbuf);
1794: if (s->sub.resampbuf)
1795: xfree(s->sub.resampbuf);
1796: }
1797:
1798: if (s->mode & MODE_PLAY) {
1799: abuf_done(&s->mix.buf);
1800: if (s->mix.decbuf)
1801: xfree(s->mix.decbuf);
1802: if (s->mix.resampbuf)
1803: xfree(s->mix.resampbuf);
1804: }
1805: }
1806:
1.1 ratchov 1807: /*
1808: * allocate a new slot and register the given call-backs
1809: */
1810: struct slot *
1.54 ratchov 1811: slot_new(struct dev *d, struct opt *opt, unsigned int id, char *who,
1.37 ratchov 1812: struct slotops *ops, void *arg, int mode)
1.1 ratchov 1813: {
1814: char *p;
1815: char name[SLOT_NAMEMAX];
1.52 ratchov 1816: unsigned int i, ser, bestser, bestidx;
1817: struct slot *unit[DEV_NSLOT];
1.1 ratchov 1818: struct slot *s;
1819:
1820: /*
1.27 ratchov 1821: * create a ``valid'' control name (lowcase, remove [^a-z], truncate)
1.1 ratchov 1822: */
1823: for (i = 0, p = who; ; p++) {
1824: if (i == SLOT_NAMEMAX - 1 || *p == '\0') {
1825: name[i] = '\0';
1826: break;
1827: } else if (*p >= 'A' && *p <= 'Z') {
1828: name[i++] = *p + 'a' - 'A';
1829: } else if (*p >= 'a' && *p <= 'z')
1830: name[i++] = *p;
1831: }
1832: if (i == 0)
1833: strlcpy(name, "noname", SLOT_NAMEMAX);
1834:
1835: /*
1.52 ratchov 1836: * build a unit-to-slot map for this name
1.1 ratchov 1837: */
1.52 ratchov 1838: for (i = 0; i < DEV_NSLOT; i++)
1839: unit[i] = NULL;
1840: for (i = 0; i < DEV_NSLOT; i++) {
1841: s = d->slot + i;
1.1 ratchov 1842: if (strcmp(s->name, name) == 0)
1.52 ratchov 1843: unit[s->unit] = s;
1.1 ratchov 1844: }
1845:
1846: /*
1.54 ratchov 1847: * find the free slot with the least unit number and same id
1848: */
1849: for (i = 0; i < DEV_NSLOT; i++) {
1850: s = unit[i];
1851: if (s != NULL && s->ops == NULL && s->id == id)
1852: goto found;
1853: }
1854:
1855: /*
1.52 ratchov 1856: * find the free slot with the least unit number
1.1 ratchov 1857: */
1.52 ratchov 1858: for (i = 0; i < DEV_NSLOT; i++) {
1859: s = unit[i];
1.54 ratchov 1860: if (s != NULL && s->ops == NULL) {
1861: s->id = id;
1.1 ratchov 1862: goto found;
1.54 ratchov 1863: }
1.1 ratchov 1864: }
1865:
1866: /*
1.18 ratchov 1867: * couldn't find a matching slot, pick oldest free slot
1.1 ratchov 1868: * and set its name/unit
1869: */
1870: bestser = 0;
1871: bestidx = DEV_NSLOT;
1872: for (i = 0, s = d->slot; i < DEV_NSLOT; i++, s++) {
1873: if (s->ops != NULL)
1874: continue;
1875: ser = d->serial - s->serial;
1876: if (ser > bestser) {
1877: bestser = ser;
1878: bestidx = i;
1879: }
1880: }
1.51 ratchov 1881: if (bestidx != DEV_NSLOT) {
1882: s = d->slot + bestidx;
1883: s->vol = MIDI_MAXCTL;
1884: strlcpy(s->name, name, SLOT_NAMEMAX);
1885: s->serial = d->serial++;
1.52 ratchov 1886: for (i = 0; unit[i] != NULL; i++)
1887: ; /* nothing */
1888: s->unit = i;
1.54 ratchov 1889: s->id = id;
1.51 ratchov 1890: goto found;
1.1 ratchov 1891: }
1.53 ratchov 1892:
1.51 ratchov 1893: if (log_level >= 1) {
1.1 ratchov 1894: log_puts(name);
1.51 ratchov 1895: log_puts(": out of sub-device slots\n");
1.1 ratchov 1896: }
1.51 ratchov 1897: return NULL;
1.1 ratchov 1898:
1899: found:
1.37 ratchov 1900: if ((mode & MODE_REC) && (opt->mode & MODE_MON)) {
1901: mode |= MODE_MON;
1902: mode &= ~MODE_REC;
1903: }
1904: if ((mode & opt->mode) != mode) {
1905: if (log_level >= 1) {
1906: slot_log(s);
1907: log_puts(": requested mode not allowed\n");
1908: }
1909: return 0;
1910: }
1.1 ratchov 1911: if (!dev_ref(d))
1912: return NULL;
1.64 ratchov 1913: dev_label(d, s - d->slot);
1.31 ratchov 1914: if ((mode & d->mode) != mode) {
1.1 ratchov 1915: if (log_level >= 1) {
1916: slot_log(s);
1917: log_puts(": requested mode not supported\n");
1918: }
1.31 ratchov 1919: dev_unref(d);
1.49 ratchov 1920: return NULL;
1.1 ratchov 1921: }
1.31 ratchov 1922: s->dev = d;
1.37 ratchov 1923: s->opt = opt;
1.31 ratchov 1924: s->ops = ops;
1925: s->arg = arg;
1926: s->pstate = SLOT_INIT;
1.1 ratchov 1927: s->mode = mode;
1.6 ratchov 1928: aparams_init(&s->par);
1.41 ratchov 1929: if (s->mode & MODE_PLAY)
1.42 ratchov 1930: s->mix.nch = s->opt->pmax - s->opt->pmin + 1;
1.41 ratchov 1931: if (s->mode & MODE_RECMASK)
1.42 ratchov 1932: s->sub.nch = s->opt->rmax - s->opt->rmin + 1;
1.46 ratchov 1933: s->xrun = s->opt->mmc ? XRUN_SYNC : XRUN_IGNORE;
1.1 ratchov 1934: s->appbufsz = d->bufsz;
1935: s->round = d->round;
1.5 ratchov 1936: s->rate = d->rate;
1.1 ratchov 1937: dev_midi_slotdesc(d, s);
1938: dev_midi_vol(d, s);
1.43 ratchov 1939: #ifdef DEBUG
1940: if (log_level >= 3) {
1941: slot_log(s);
1942: log_puts(": using ");
1943: dev_log(d);
1944: log_puts(".");
1945: log_puts(opt->name);
1946: log_puts(", mode = ");
1947: log_putx(mode);
1948: log_puts("\n");
1949: }
1950: #endif
1.1 ratchov 1951: return s;
1952: }
1953:
1954: /*
1955: * release the given slot
1956: */
1957: void
1958: slot_del(struct slot *s)
1959: {
1960: s->arg = s;
1961: s->ops = &zomb_slotops;
1962: switch (s->pstate) {
1963: case SLOT_INIT:
1964: s->ops = NULL;
1965: break;
1966: case SLOT_START:
1967: case SLOT_READY:
1968: case SLOT_RUN:
1969: slot_stop(s);
1970: /* PASSTHROUGH */
1971: case SLOT_STOP:
1972: break;
1973: }
1974: dev_unref(s->dev);
1975: s->dev = NULL;
1976: }
1977:
1978: /*
1979: * change the slot play volume; called either by the slot or by MIDI
1980: */
1981: void
1982: slot_setvol(struct slot *s, unsigned int vol)
1983: {
1984: #ifdef DEBUG
1985: if (log_level >= 3) {
1986: slot_log(s);
1987: log_puts(": setting volume ");
1988: log_putu(vol);
1989: log_puts("\n");
1990: }
1991: #endif
1992: s->vol = vol;
1993: s->mix.vol = MIDI_TO_ADATA(s->vol);
1994: }
1995:
1996: /*
1997: * attach the slot to the device (ie start playing & recording
1998: */
1999: void
2000: slot_attach(struct slot *s)
2001: {
2002: struct dev *d = s->dev;
1.12 ratchov 2003: long long pos;
1.1 ratchov 2004:
2005: /*
2006: * start the device if not started
2007: */
2008: dev_wakeup(d);
1.23 ratchov 2009:
1.1 ratchov 2010: /*
1.12 ratchov 2011: * adjust initial clock
2012: */
1.79 ! ratchov 2013: pos = s->delta_rem +
! 2014: (long long)s->delta * d->round +
! 2015: (long long)d->delta * s->round;
! 2016: s->delta = pos / (int)d->round;
1.12 ratchov 2017: s->delta_rem = pos % d->round;
1.79 ! ratchov 2018: if (s->delta_rem < 0) {
! 2019: s->delta_rem += d->round;
! 2020: s->delta--;
! 2021: }
1.12 ratchov 2022:
1.1 ratchov 2023: #ifdef DEBUG
1.17 ratchov 2024: if (log_level >= 2) {
1.1 ratchov 2025: slot_log(s);
2026: log_puts(": attached at ");
1.79 ! ratchov 2027: log_puti(s->delta);
! 2028: log_puts(" + ");
! 2029: log_puti(s->delta_rem);
! 2030: log_puts("/");
! 2031: log_puti(s->round);
1.1 ratchov 2032: log_puts("\n");
2033: }
2034: #endif
2035:
2036: /*
2037: * We dont check whether the device is dying,
2038: * because dev_xxx() functions are supposed to
2039: * work (i.e., not to crash)
2040: */
2041: #ifdef DEBUG
2042: if ((s->mode & d->mode) != s->mode) {
2043: slot_log(s);
1.24 ratchov 2044: log_puts(": mode beyond device mode, not attaching\n");
1.1 ratchov 2045: panic();
2046: }
2047: #endif
2048: s->next = d->slot_list;
2049: d->slot_list = s;
2050: if (s->mode & MODE_PLAY) {
2051: s->mix.vol = MIDI_TO_ADATA(s->vol);
2052: dev_mix_adjvol(d);
2053: }
2054: }
2055:
2056: /*
2057: * if MMC is enabled, and try to attach all slots synchronously, else
2058: * simply attach the slot
2059: */
2060: void
2061: slot_ready(struct slot *s)
2062: {
1.3 ratchov 2063: /*
2064: * device may be disconnected, and if so we're called from
2065: * slot->ops->exit() on a closed device
1.23 ratchov 2066: */
1.3 ratchov 2067: if (s->dev->pstate == DEV_CFG)
2068: return;
1.79 ! ratchov 2069: if (!s->opt->mmc) {
1.1 ratchov 2070: slot_attach(s);
1.79 ! ratchov 2071: s->pstate = SLOT_RUN;
! 2072: } else
1.1 ratchov 2073: dev_sync_attach(s->dev);
2074: }
2075:
2076: /*
2077: * setup buffers & conversion layers, prepare the slot to receive data
2078: * (for playback) or start (recording).
2079: */
2080: void
2081: slot_start(struct slot *s)
2082: {
2083: #ifdef DEBUG
2084: if (s->pstate != SLOT_INIT) {
2085: slot_log(s);
2086: log_puts(": slot_start: wrong state\n");
2087: panic();
2088: }
2089: if (s->mode & MODE_PLAY) {
2090: if (log_level >= 3) {
2091: slot_log(s);
2092: log_puts(": playing ");
2093: aparams_log(&s->par);
2094: log_puts(" -> ");
1.35 ratchov 2095: aparams_log(&s->dev->par);
1.1 ratchov 2096: log_puts("\n");
2097: }
2098: }
2099: if (s->mode & MODE_RECMASK) {
2100: if (log_level >= 3) {
2101: slot_log(s);
2102: log_puts(": recording ");
2103: aparams_log(&s->par);
2104: log_puts(" <- ");
1.35 ratchov 2105: aparams_log(&s->dev->par);
1.1 ratchov 2106: log_puts("\n");
1.35 ratchov 2107: }
1.1 ratchov 2108: }
2109: #endif
1.35 ratchov 2110: slot_allocbufs(s);
1.47 ratchov 2111:
2112: if (s->mode & MODE_RECMASK) {
2113: /*
2114: * N-th recorded block is the N-th played block
2115: */
2116: s->sub.prime = -dev_getpos(s->dev) / s->dev->round;
2117: }
2118: s->skip = 0;
2119:
1.79 ! ratchov 2120: /*
! 2121: * get the current position, the origin is when the first sample
! 2122: * played and/or recorded
! 2123: */
! 2124: s->delta = dev_getpos(s->dev) * (int)s->round / (int)s->dev->round;
! 2125: s->delta_rem = 0;
! 2126:
1.1 ratchov 2127: if (s->mode & MODE_PLAY) {
2128: s->pstate = SLOT_START;
2129: } else {
2130: s->pstate = SLOT_READY;
2131: slot_ready(s);
2132: }
2133: }
2134:
2135: /*
2136: * stop playback and recording, and free conversion layers
2137: */
2138: void
2139: slot_detach(struct slot *s)
2140: {
2141: struct slot **ps;
1.79 ! ratchov 2142: struct dev *d;
! 2143: long long pos;
1.1 ratchov 2144:
2145: #ifdef DEBUG
2146: if (log_level >= 3) {
2147: slot_log(s);
2148: log_puts(": detaching\n");
2149: }
2150: #endif
2151: for (ps = &s->dev->slot_list; *ps != s; ps = &(*ps)->next) {
2152: #ifdef DEBUG
1.28 ratchov 2153: if (*ps == NULL) {
1.1 ratchov 2154: slot_log(s);
2155: log_puts(": can't detach, not on list\n");
2156: panic();
2157: }
2158: #endif
1.23 ratchov 2159: }
1.1 ratchov 2160: *ps = s->next;
1.79 ! ratchov 2161:
! 2162: d = s->dev;
! 2163:
! 2164: /*
! 2165: * adjust clock, go back d->delta ticks so that slot_attach()
! 2166: * could be called with the resulting state
! 2167: */
! 2168: pos = s->delta_rem +
! 2169: (long long)s->delta * d->round -
! 2170: (long long)d->delta * s->round;
! 2171: s->delta = pos / (int)d->round;
! 2172: s->delta_rem = pos % d->round;
! 2173: if (s->delta_rem < 0) {
! 2174: s->delta_rem += d->round;
! 2175: s->delta--;
! 2176: }
! 2177:
! 2178: #ifdef DEBUG
! 2179: if (log_level >= 2) {
! 2180: slot_log(s);
! 2181: log_puts(": detached at ");
! 2182: log_puti(s->delta);
! 2183: log_puts(" + ");
! 2184: log_puti(s->delta_rem);
! 2185: log_puts("/");
! 2186: log_puti(d->round);
! 2187: log_puts("\n");
! 2188: }
! 2189: #endif
1.35 ratchov 2190: if (s->mode & MODE_PLAY)
1.1 ratchov 2191: dev_mix_adjvol(s->dev);
2192: }
2193:
2194: /*
2195: * put the slot in stopping state (draining play buffers) or
2196: * stop & detach if no data to drain.
2197: */
2198: void
2199: slot_stop(struct slot *s)
2200: {
2201: #ifdef DEBUG
2202: if (log_level >= 3) {
2203: slot_log(s);
2204: log_puts(": stopping\n");
2205: }
2206: #endif
2207: if (s->pstate == SLOT_START) {
1.33 ratchov 2208: /*
2209: * If in rec-only mode, we're already in the READY or
2210: * RUN states. We're here because the play buffer was
2211: * not full enough, try to start so it's drained.
2212: */
2213: s->pstate = SLOT_READY;
2214: slot_ready(s);
1.1 ratchov 2215: }
1.34 ratchov 2216:
2217: if (s->pstate == SLOT_RUN) {
2218: if (s->mode & MODE_PLAY) {
2219: /*
2220: * Don't detach, dev_cycle() will do it for us
2221: * when the buffer is drained.
2222: */
2223: s->pstate = SLOT_STOP;
2224: return;
2225: }
2226: slot_detach(s);
2227: } else {
1.1 ratchov 2228: #ifdef DEBUG
2229: if (log_level >= 3) {
2230: slot_log(s);
2231: log_puts(": not drained (blocked by mmc)\n");
2232: }
2233: #endif
2234: }
1.35 ratchov 2235:
1.34 ratchov 2236: s->pstate = SLOT_INIT;
2237: s->ops->eof(s->arg);
1.35 ratchov 2238: slot_freebufs(s);
1.1 ratchov 2239: }
2240:
1.12 ratchov 2241: void
2242: slot_skip_update(struct slot *s)
2243: {
2244: int skip;
2245:
2246: skip = slot_skip(s);
2247: while (skip > 0) {
2248: #ifdef DEBUG
2249: if (log_level >= 4) {
2250: slot_log(s);
2251: log_puts(": catching skipped block\n");
2252: }
2253: #endif
2254: if (s->mode & MODE_RECMASK)
2255: s->ops->flush(s->arg);
2256: if (s->mode & MODE_PLAY)
2257: s->ops->fill(s->arg);
2258: skip--;
2259: }
2260: }
2261:
1.1 ratchov 2262: /*
2263: * notify the slot that we just wrote in the play buffer, must be called
2264: * after each write
2265: */
2266: void
2267: slot_write(struct slot *s)
2268: {
2269: if (s->pstate == SLOT_START && s->mix.buf.used == s->mix.buf.len) {
2270: #ifdef DEBUG
2271: if (log_level >= 4) {
2272: slot_log(s);
2273: log_puts(": switching to READY state\n");
2274: }
2275: #endif
2276: s->pstate = SLOT_READY;
2277: slot_ready(s);
2278: }
1.12 ratchov 2279: slot_skip_update(s);
1.1 ratchov 2280: }
2281:
2282: /*
2283: * notify the slot that we freed some space in the rec buffer
2284: */
2285: void
2286: slot_read(struct slot *s)
2287: {
1.12 ratchov 2288: slot_skip_update(s);
1.64 ratchov 2289: }
2290:
2291: /*
2292: * allocate at control slot
2293: */
2294: struct ctlslot *
2295: ctlslot_new(struct dev *d, struct ctlops *ops, void *arg)
2296: {
2297: struct ctlslot *s;
2298: struct ctl *c;
2299: int i;
2300:
2301: i = 0;
2302: for (;;) {
2303: if (i == DEV_NCTLSLOT)
2304: return NULL;
2305: s = d->ctlslot + i;
2306: if (s->ops == NULL)
2307: break;
2308: i++;
2309: }
2310: s->dev = d;
2311: s->mask = 1 << i;
2312: if (!dev_ref(d))
2313: return NULL;
2314: s->ops = ops;
2315: s->arg = arg;
2316: for (c = d->ctl_list; c != NULL; c = c->next)
2317: c->refs_mask |= s->mask;
2318: return s;
2319: }
2320:
2321: /*
2322: * free control slot
2323: */
2324: void
2325: ctlslot_del(struct ctlslot *s)
2326: {
2327: struct ctl *c, **pc;
2328:
2329: pc = &s->dev->ctl_list;
2330: while ((c = *pc) != NULL) {
2331: c->refs_mask &= ~s->mask;
2332: if (c->refs_mask == 0) {
2333: *pc = c->next;
2334: xfree(c);
2335: } else
2336: pc = &c->next;
2337: }
2338: s->ops = NULL;
2339: dev_unref(s->dev);
2340: }
2341:
2342: void
2343: ctl_node_log(struct ctl_node *c)
2344: {
2345: log_puts(c->name);
2346: if (c->unit >= 0)
2347: log_putu(c->unit);
2348: }
2349:
2350: void
2351: ctl_log(struct ctl *c)
2352: {
2353: if (c->group[0] != 0) {
2354: log_puts(c->group);
2355: log_puts("/");
2356: }
2357: ctl_node_log(&c->node0);
2358: log_puts(".");
2359: log_puts(c->func);
2360: log_puts("=");
2361: switch (c->type) {
1.67 ratchov 2362: case CTL_NONE:
2363: log_puts("none");
2364: break;
1.64 ratchov 2365: case CTL_NUM:
2366: case CTL_SW:
2367: log_putu(c->curval);
2368: break;
2369: case CTL_VEC:
2370: case CTL_LIST:
1.74 ratchov 2371: case CTL_SEL:
1.64 ratchov 2372: ctl_node_log(&c->node1);
2373: log_puts(":");
2374: log_putu(c->curval);
2375: }
2376: log_puts(" at ");
2377: log_putu(c->addr);
2378: }
2379:
2380: /*
2381: * add a ctl
2382: */
2383: struct ctl *
2384: dev_addctl(struct dev *d, char *gstr, int type, int addr,
2385: char *str0, int unit0, char *func, char *str1, int unit1, int maxval, int val)
2386: {
2387: struct ctl *c, **pc;
2388: int i;
2389:
2390: c = xmalloc(sizeof(struct ctl));
2391: c->type = type;
2392: strlcpy(c->func, func, CTL_NAMEMAX);
2393: strlcpy(c->group, gstr, CTL_NAMEMAX);
2394: strlcpy(c->node0.name, str0, CTL_NAMEMAX);
2395: c->node0.unit = unit0;
1.74 ratchov 2396: if (c->type == CTL_VEC || c->type == CTL_LIST || c->type == CTL_SEL) {
1.64 ratchov 2397: strlcpy(c->node1.name, str1, CTL_NAMEMAX);
2398: c->node1.unit = unit1;
2399: } else
2400: memset(&c->node1, 0, sizeof(struct ctl_node));
2401: c->addr = addr;
2402: c->maxval = maxval;
2403: c->val_mask = ~0;
2404: c->desc_mask = ~0;
2405: c->curval = val;
2406: c->dirty = 0;
2407: c->refs_mask = 0;
2408: for (i = 0; i < DEV_NCTLSLOT; i++) {
2409: c->refs_mask |= CTL_DEVMASK;
2410: if (d->ctlslot[i].ops != NULL)
2411: c->refs_mask |= 1 << i;
2412: }
2413: for (pc = &d->ctl_list; *pc != NULL; pc = &(*pc)->next)
2414: ; /* nothing */
2415: c->next = NULL;
2416: *pc = c;
2417: #ifdef DEBUG
2418: if (log_level >= 3) {
2419: dev_log(d);
2420: log_puts(": adding ");
2421: ctl_log(c);
2422: log_puts("\n");
2423: }
2424: #endif
2425: return c;
2426: }
2427:
2428: void
2429: dev_rmctl(struct dev *d, int addr)
2430: {
2431: struct ctl *c, **pc;
2432:
2433: pc = &d->ctl_list;
2434: for (;;) {
2435: c = *pc;
2436: if (c == NULL)
2437: return;
2438: if (c->type != CTL_NONE && c->addr == addr)
2439: break;
2440: pc = &c->next;
2441: }
2442: c->type = CTL_NONE;
2443: #ifdef DEBUG
2444: if (log_level >= 3) {
2445: dev_log(d);
2446: log_puts(": removing ");
2447: ctl_log(c);
2448: log_puts(", refs_mask = 0x");
2449: log_putx(c->refs_mask);
2450: log_puts("\n");
2451: }
2452: #endif
2453: c->refs_mask &= ~CTL_DEVMASK;
1.68 ratchov 2454: if (c->refs_mask == 0) {
2455: *pc = c->next;
2456: xfree(c);
1.64 ratchov 2457: return;
1.68 ratchov 2458: }
2459: c->desc_mask = ~0;
1.65 ratchov 2460: }
2461:
2462: void
2463: dev_ctlsync(struct dev *d)
2464: {
1.70 ratchov 2465: struct ctl *c;
1.65 ratchov 2466: struct ctlslot *s;
1.70 ratchov 2467: int found, i;
2468:
2469: found = 0;
2470: for (c = d->ctl_list; c != NULL; c = c->next) {
2471: if (c->addr != CTLADDR_MASTER &&
2472: c->type == CTL_NUM &&
2473: strcmp(c->group, "") == 0 &&
2474: strcmp(c->node0.name, "output") == 0 &&
2475: strcmp(c->func, "level") == 0)
2476: found = 1;
2477: }
2478:
2479: if (d->master_enabled && found) {
2480: if (log_level >= 2) {
2481: dev_log(d);
2482: log_puts(": software master level control disabled\n");
2483: }
2484: d->master_enabled = 0;
2485: dev_rmctl(d, CTLADDR_MASTER);
2486: } else if (!d->master_enabled && !found) {
2487: if (log_level >= 2) {
2488: dev_log(d);
2489: log_puts(": software master level control enabled\n");
2490: }
2491: d->master_enabled = 1;
2492: dev_addctl(d, "", CTL_NUM, CTLADDR_MASTER,
2493: "output", -1, "level", NULL, -1, 127, d->master);
2494: }
1.65 ratchov 2495:
2496: for (s = d->ctlslot, i = DEV_NCTLSLOT; i > 0; i--, s++) {
2497: if (s->ops)
2498: s->ops->sync(s->arg);
2499: }
1.64 ratchov 2500: }
2501:
2502: int
2503: dev_setctl(struct dev *d, int addr, int val)
2504: {
2505: struct ctl *c;
2506: int num;
2507:
2508: c = d->ctl_list;
2509: for (;;) {
2510: if (c == NULL) {
2511: if (log_level >= 3) {
2512: dev_log(d);
2513: log_puts(": ");
2514: log_putu(addr);
2515: log_puts(": no such ctl address\n");
2516: }
2517: return 0;
2518: }
2519: if (c->type != CTL_NONE && c->addr == addr)
2520: break;
2521: c = c->next;
2522: }
2523: if (c->curval == val) {
2524: if (log_level >= 3) {
2525: ctl_log(c);
2526: log_puts(": already set\n");
2527: }
2528: return 1;
2529: }
2530: if (val < 0 || val > c->maxval) {
2531: if (log_level >= 3) {
2532: dev_log(d);
2533: log_puts(": ");
2534: log_putu(val);
2535: log_puts(": ctl val out of bounds\n");
2536: }
2537: return 0;
2538: }
2539: if (addr >= CTLADDR_END) {
2540: if (log_level >= 3) {
2541: ctl_log(c);
2542: log_puts(": marked as dirty\n");
2543: }
2544: c->dirty = 1;
2545: dev_ref(d);
2546: } else {
1.75 ratchov 2547: if (addr >= CTLADDR_ALT_SEL) {
2548: if (val) {
2549: num = addr - CTLADDR_ALT_SEL;
2550: dev_setalt(d, num);
2551: }
2552: return 1;
2553: } else if (addr == CTLADDR_MASTER) {
1.70 ratchov 2554: if (d->master_enabled) {
2555: dev_master(d, val);
2556: dev_midi_master(d);
2557: }
1.64 ratchov 2558: } else {
2559: num = addr - CTLADDR_SLOT_LEVEL(0);
2560: slot_setvol(d->slot + num, val);
2561: dev_midi_vol(d, d->slot + num);
2562: }
1.66 ratchov 2563: c->val_mask = ~0U;
1.64 ratchov 2564: }
2565: c->curval = val;
2566: return 1;
2567: }
2568:
2569: int
2570: dev_onval(struct dev *d, int addr, int val)
2571: {
2572: struct ctl *c;
2573:
2574: c = d->ctl_list;
2575: for (;;) {
2576: if (c == NULL)
2577: return 0;
2578: if (c->type != CTL_NONE && c->addr == addr)
2579: break;
2580: c = c->next;
2581: }
2582: c->curval = val;
2583: c->val_mask = ~0U;
2584: return 1;
2585: }
2586:
2587: void
2588: dev_label(struct dev *d, int i)
2589: {
2590: struct ctl *c;
2591: char name[CTL_NAMEMAX];
2592:
1.69 ratchov 2593: slot_ctlname(&d->slot[i], name, CTL_NAMEMAX);
2594:
1.64 ratchov 2595: c = d->ctl_list;
2596: for (;;) {
1.69 ratchov 2597: if (c == NULL) {
2598: dev_addctl(d, "app", CTL_NUM,
2599: CTLADDR_SLOT_LEVEL(i),
2600: name, -1, "level",
2601: NULL, -1, 127, d->slot[i].vol);
1.64 ratchov 2602: return;
1.69 ratchov 2603: }
1.64 ratchov 2604: if (c->addr == CTLADDR_SLOT_LEVEL(i))
2605: break;
2606: c = c->next;
2607: }
2608: if (strcmp(c->node0.name, name) == 0)
2609: return;
2610: strlcpy(c->node0.name, name, CTL_NAMEMAX);
2611: c->desc_mask = ~0;
1.1 ratchov 2612: }