xref: /freebsd/sys/dev/sound/usb/uaudio_pcm.c (revision 7bd6fde3) 
1 /* $FreeBSD$ */
2 
3 /*-
4  * Copyright (c) 2000-2002 Hiroyuki Aizu <aizu@navi.org>
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 
29 #include <sys/soundcard.h>
30 #include <dev/sound/pcm/sound.h>
31 #include <dev/sound/chip.h>
32 
33 #include <dev/sound/usb/uaudio.h>
34 
35 #include "mixer_if.h"
36 
37 struct ua_info;
38 
39 struct ua_chinfo {
40 	struct ua_info *parent;
41 	struct pcm_channel *channel;
42 	struct snd_dbuf *buffer;
43 	u_char *buf;
44 	int dir, hwch;
45 	u_int32_t fmt, spd, blksz;	/* XXXXX */
46 };
47 
48 struct ua_info {
49 	device_t sc_dev;
50 	u_int32_t bufsz;
51 	struct ua_chinfo pch, rch;
52 #define FORMAT_NUM	32
53 	u_int32_t ua_playfmt[FORMAT_NUM*2+1]; /* FORMAT_NUM format * (stereo or mono) + endptr */
54 	u_int32_t ua_recfmt[FORMAT_NUM*2+1]; /* FORMAT_NUM format * (stereo or mono) + endptr */
55 	struct pcmchan_caps ua_playcaps;
56 	struct pcmchan_caps ua_reccaps;
57 };
58 
59 #define UAUDIO_DEFAULT_BUFSZ		16*1024
60 
61 /************************************************************/
62 static void *
63 ua_chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
64 {
65 	device_t pa_dev;
66 
67 	struct ua_info *sc = devinfo;
68 	struct ua_chinfo *ch = (dir == PCMDIR_PLAY)? &sc->pch : &sc->rch;
69 
70 	ch->parent = sc;
71 	ch->channel = c;
72 	ch->buffer = b;
73 	ch->dir = dir;
74 
75 	pa_dev = device_get_parent(sc->sc_dev);
76 
77 	ch->buf = malloc(sc->bufsz, M_DEVBUF, M_NOWAIT);
78 	if (ch->buf == NULL)
79 		return NULL;
80 	if (sndbuf_setup(b, ch->buf, sc->bufsz) != 0) {
81 		free(ch->buf, M_DEVBUF);
82 		return NULL;
83 	}
84 	uaudio_chan_set_param_pcm_dma_buff(pa_dev, ch->buf, ch->buf+sc->bufsz, ch->channel, dir);
85 	if (bootverbose)
86 		device_printf(pa_dev, "%s buf %p\n", (dir == PCMDIR_PLAY)?
87 			      "play" : "rec", sndbuf_getbuf(ch->buffer));
88 
89 	ch->dir = dir;
90 #ifndef NO_RECORDING
91 	ch->hwch = 1;
92 	if (dir == PCMDIR_PLAY)
93 		ch->hwch = 2;
94 #else
95 	ch->hwch = 2;
96 #endif
97 
98 	return ch;
99 }
100 
101 static int
102 ua_chan_free(kobj_t obj, void *data)
103 {
104 	struct ua_chinfo *ua = data;
105 
106 	if (ua->buf != NULL)
107 		free(ua->buf, M_DEVBUF);
108 	return 0;
109 }
110 
111 static int
112 ua_chan_setformat(kobj_t obj, void *data, u_int32_t format)
113 {
114 	device_t pa_dev;
115 	struct ua_info *ua;
116 
117 	struct ua_chinfo *ch = data;
118 
119 	/*
120 	 * At this point, no need to query as we shouldn't select an unsorted format
121 	 */
122 	ua = ch->parent;
123 	pa_dev = device_get_parent(ua->sc_dev);
124 	uaudio_chan_set_param_format(pa_dev, format, ch->dir);
125 
126 	ch->fmt = format;
127 	return 0;
128 }
129 
130 static int
131 ua_chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
132 {
133 	struct ua_chinfo *ch;
134 	device_t pa_dev;
135 	int bestspeed;
136 
137 	ch = data;
138 	pa_dev = device_get_parent(ch->parent->sc_dev);
139 
140 	if ((bestspeed = uaudio_chan_set_param_speed(pa_dev, speed, ch->dir)))
141 		ch->spd = bestspeed;
142 
143 	return ch->spd;
144 }
145 
146 static int
147 ua_chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
148 {
149 	device_t pa_dev;
150 	struct ua_chinfo *ch = data;
151 	struct ua_info *ua = ch->parent;
152 	u_int32_t blkcnt;
153 
154 	RANGE(blocksize, 128, ua->bufsz / 2);
155 	blkcnt = ua->bufsz / blocksize;
156 
157 	if ((sndbuf_getblksz(ch->buffer) != blocksize ||
158 	    sndbuf_getblkcnt(ch->buffer) != blkcnt) &&
159 	    sndbuf_resize(ch->buffer, blkcnt, blocksize) != 0)
160 		device_printf(ua->sc_dev, "%s: failed blksz=%u blkcnt=%u\n",
161 		    __func__, blocksize, blkcnt);
162 
163 	ch->blksz = sndbuf_getblksz(ch->buffer);
164 
165 	pa_dev = device_get_parent(ua->sc_dev);
166 	uaudio_chan_set_param_blocksize(pa_dev, ch->blksz, ch->dir);
167 
168 	return ch->blksz;
169 }
170 
171 static int
172 ua_chan_trigger(kobj_t obj, void *data, int go)
173 {
174 	device_t pa_dev;
175 	struct ua_info *ua;
176 	struct ua_chinfo *ch = data;
177 
178 	if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
179 		return 0;
180 
181 	ua = ch->parent;
182 	pa_dev = device_get_parent(ua->sc_dev);
183 
184 	/* XXXXX */
185 	if (ch->dir == PCMDIR_PLAY) {
186 		if (go == PCMTRIG_START) {
187 			uaudio_trigger_output(pa_dev);
188 		} else {
189 			uaudio_halt_out_dma(pa_dev);
190 		}
191 	} else {
192 #ifndef NO_RECORDING
193 		if (go == PCMTRIG_START)
194 			uaudio_trigger_input(pa_dev);
195 		else
196 			uaudio_halt_in_dma(pa_dev);
197 #endif
198 	}
199 
200 	return 0;
201 }
202 
203 static int
204 ua_chan_getptr(kobj_t obj, void *data)
205 {
206 	device_t pa_dev;
207 	struct ua_info *ua;
208 	struct ua_chinfo *ch = data;
209 
210 	ua = ch->parent;
211 	pa_dev = device_get_parent(ua->sc_dev);
212 
213 	return uaudio_chan_getptr(pa_dev, ch->dir);
214 }
215 
216 static struct pcmchan_caps *
217 ua_chan_getcaps(kobj_t obj, void *data)
218 {
219 	struct ua_chinfo *ch;
220 
221 	ch = data;
222 	return (ch->dir == PCMDIR_PLAY) ? &(ch->parent->ua_playcaps) : &(ch->parent->ua_reccaps);
223 }
224 
225 static kobj_method_t ua_chan_methods[] = {
226 	KOBJMETHOD(channel_init,		ua_chan_init),
227 	KOBJMETHOD(channel_free,                ua_chan_free),
228 	KOBJMETHOD(channel_setformat,		ua_chan_setformat),
229 	KOBJMETHOD(channel_setspeed,		ua_chan_setspeed),
230 	KOBJMETHOD(channel_setblocksize,	ua_chan_setblocksize),
231 	KOBJMETHOD(channel_trigger,		ua_chan_trigger),
232 	KOBJMETHOD(channel_getptr,		ua_chan_getptr),
233 	KOBJMETHOD(channel_getcaps,		ua_chan_getcaps),
234 	{ 0, 0 }
235 };
236 
237 CHANNEL_DECLARE(ua_chan);
238 
239 /************************************************************/
240 static int
241 ua_mixer_init(struct snd_mixer *m)
242 {
243 	u_int32_t mask;
244 	device_t pa_dev;
245 	struct snddev_info *d;
246 	struct ua_info *ua = mix_getdevinfo(m);
247 
248 	pa_dev = device_get_parent(ua->sc_dev);
249 	d = device_get_softc(ua->sc_dev);
250 
251 	mask = uaudio_query_mix_info(pa_dev);
252 	if (d != NULL) {
253 		if (!(mask & SOUND_MASK_PCM)) {
254 			/*
255 			 * Emulate missing pcm mixer controller
256 			 * through FEEDER_VOLUME
257 			 */
258 			 d->flags |= SD_F_SOFTPCMVOL;
259 		}
260 		if (!(mask & SOUND_MASK_VOLUME)) {
261 			mix_setparentchild(m, SOUND_MIXER_VOLUME,
262 			    SOUND_MASK_PCM);
263 			mix_setrealdev(m, SOUND_MIXER_VOLUME,
264 			    SOUND_MIXER_NONE);
265 		}
266 	}
267 	mix_setdevs(m,	mask);
268 
269 	mask = uaudio_query_recsrc_info(pa_dev);
270 	mix_setrecdevs(m, mask);
271 
272 	return 0;
273 }
274 
275 static int
276 ua_mixer_set(struct snd_mixer *m, unsigned type, unsigned left, unsigned right)
277 {
278 	device_t pa_dev;
279 	struct ua_info *ua = mix_getdevinfo(m);
280 
281 	pa_dev = device_get_parent(ua->sc_dev);
282 	uaudio_mixer_set(pa_dev, type, left, right);
283 
284 	return left | (right << 8);
285 }
286 
287 static int
288 ua_mixer_setrecsrc(struct snd_mixer *m, u_int32_t src)
289 {
290 	device_t pa_dev;
291 	struct ua_info *ua = mix_getdevinfo(m);
292 
293 	pa_dev = device_get_parent(ua->sc_dev);
294 	return uaudio_mixer_setrecsrc(pa_dev, src);
295 }
296 
297 static kobj_method_t ua_mixer_methods[] = {
298 	KOBJMETHOD(mixer_init,		ua_mixer_init),
299 	KOBJMETHOD(mixer_set,		ua_mixer_set),
300 	KOBJMETHOD(mixer_setrecsrc,	ua_mixer_setrecsrc),
301 
302 	{ 0, 0 }
303 };
304 MIXER_DECLARE(ua_mixer);
305 /************************************************************/
306 
307 
308 static int
309 ua_probe(device_t dev)
310 {
311 	char *s;
312 	struct sndcard_func *func;
313 
314 	/* The parent device has already been probed. */
315 
316 	func = device_get_ivars(dev);
317 	if (func == NULL || func->func != SCF_PCM)
318 		return (ENXIO);
319 
320 	s = "USB Audio";
321 
322 	device_set_desc(dev, s);
323 	return BUS_PROBE_DEFAULT;
324 }
325 
326 static int
327 ua_attach(device_t dev)
328 {
329 	struct ua_info *ua;
330 	char status[SND_STATUSLEN];
331 	device_t pa_dev;
332 	u_int32_t nplay, nrec;
333 	int i;
334 
335 	ua = (struct ua_info *)malloc(sizeof *ua, M_DEVBUF, M_ZERO | M_NOWAIT);
336 	if (ua == NULL)
337 		return ENXIO;
338 
339 	ua->sc_dev = dev;
340 
341 	pa_dev = device_get_parent(dev);
342 
343 	ua->bufsz = pcm_getbuffersize(dev, 4096, UAUDIO_DEFAULT_BUFSZ, 65536);
344 	if (bootverbose)
345 		device_printf(dev, "using a default buffer size of %jd\n", (intmax_t)ua->bufsz);
346 
347 	if (mixer_init(dev, &ua_mixer_class, ua)) {
348 		goto bad;
349 	}
350 
351 	snprintf(status, SND_STATUSLEN, "at ? %s", PCM_KLDSTRING(snd_uaudio));
352 
353 	ua->ua_playcaps.fmtlist = ua->ua_playfmt;
354 	ua->ua_reccaps.fmtlist = ua->ua_recfmt;
355 	nplay = uaudio_query_formats(pa_dev, PCMDIR_PLAY, FORMAT_NUM * 2, &ua->ua_playcaps);
356 	nrec = uaudio_query_formats(pa_dev, PCMDIR_REC, FORMAT_NUM * 2, &ua->ua_reccaps);
357 
358 	if (nplay > 1)
359 		nplay = 1;
360 	if (nrec > 1)
361 		nrec = 1;
362 
363 #ifndef NO_RECORDING
364 	if (pcm_register(dev, ua, nplay, nrec)) {
365 #else
366 	if (pcm_register(dev, ua, nplay, 0)) {
367 #endif
368 		goto bad;
369 	}
370 
371 	sndstat_unregister(dev);
372 	uaudio_sndstat_register(dev);
373 
374 	for (i = 0; i < nplay; i++) {
375 		pcm_addchan(dev, PCMDIR_PLAY, &ua_chan_class, ua);
376 	}
377 #ifndef NO_RECORDING
378 	for (i = 0; i < nrec; i++) {
379 		pcm_addchan(dev, PCMDIR_REC, &ua_chan_class, ua);
380 	}
381 #endif
382 	pcm_setstatus(dev, status);
383 
384 	return 0;
385 
386 bad:	free(ua, M_DEVBUF);
387 	return ENXIO;
388 }
389 
390 static int
391 ua_detach(device_t dev)
392 {
393 	int r;
394 	struct ua_info *sc;
395 
396 	r = pcm_unregister(dev);
397 	if (r)
398 		return r;
399 
400 	sc = pcm_getdevinfo(dev);
401 	free(sc, M_DEVBUF);
402 
403 	return 0;
404 }
405 
406 /************************************************************/
407 
408 static device_method_t ua_pcm_methods[] = {
409 	/* Device interface */
410 	DEVMETHOD(device_probe,		ua_probe),
411 	DEVMETHOD(device_attach,	ua_attach),
412 	DEVMETHOD(device_detach,	ua_detach),
413 
414 	{ 0, 0 }
415 };
416 
417 static driver_t ua_pcm_driver = {
418 	"pcm",
419 	ua_pcm_methods,
420 	PCM_SOFTC_SIZE,
421 };
422 
423 
424 DRIVER_MODULE(ua_pcm, uaudio, ua_pcm_driver, pcm_devclass, 0, 0);
425 MODULE_DEPEND(ua_pcm, uaudio, 1, 1, 1);
426 MODULE_DEPEND(ua_pcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
427 MODULE_VERSION(ua_pcm, 1);
428