xref: /freebsd/sys/dev/sound/usb/uaudio_pcm.c (revision f856af0466c076beef4ea9b15d088e1119a945b8)
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 
153 	if (blocksize) {
154 		RANGE(blocksize, 128, ua->bufsz / 2);
155 		if (sndbuf_resize(ch->buffer, ua->bufsz/blocksize, blocksize) != 0) {
156 			ch->blksz = blocksize;
157 		}
158 	}
159 	pa_dev = device_get_parent(ua->sc_dev);
160 	uaudio_chan_set_param_blocksize(pa_dev, blocksize, ch->dir);
161 
162 	return ch->blksz;
163 }
164 
165 static int
166 ua_chan_trigger(kobj_t obj, void *data, int go)
167 {
168 	device_t pa_dev;
169 	struct ua_info *ua;
170 	struct ua_chinfo *ch = data;
171 
172 	if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
173 		return 0;
174 
175 	ua = ch->parent;
176 	pa_dev = device_get_parent(ua->sc_dev);
177 
178 	/* XXXXX */
179 	if (ch->dir == PCMDIR_PLAY) {
180 		if (go == PCMTRIG_START) {
181 			uaudio_trigger_output(pa_dev);
182 		} else {
183 			uaudio_halt_out_dma(pa_dev);
184 		}
185 	} else {
186 #ifndef NO_RECORDING
187 		if (go == PCMTRIG_START)
188 			uaudio_trigger_input(pa_dev);
189 		else
190 			uaudio_halt_in_dma(pa_dev);
191 #endif
192 	}
193 
194 	return 0;
195 }
196 
197 static int
198 ua_chan_getptr(kobj_t obj, void *data)
199 {
200 	device_t pa_dev;
201 	struct ua_info *ua;
202 	struct ua_chinfo *ch = data;
203 
204 	ua = ch->parent;
205 	pa_dev = device_get_parent(ua->sc_dev);
206 
207 	return uaudio_chan_getptr(pa_dev, ch->dir);
208 }
209 
210 static struct pcmchan_caps *
211 ua_chan_getcaps(kobj_t obj, void *data)
212 {
213 	struct ua_chinfo *ch;
214 
215 	ch = data;
216 	return (ch->dir == PCMDIR_PLAY) ? &(ch->parent->ua_playcaps) : &(ch->parent->ua_reccaps);
217 }
218 
219 static kobj_method_t ua_chan_methods[] = {
220 	KOBJMETHOD(channel_init,		ua_chan_init),
221 	KOBJMETHOD(channel_free,                ua_chan_free),
222 	KOBJMETHOD(channel_setformat,		ua_chan_setformat),
223 	KOBJMETHOD(channel_setspeed,		ua_chan_setspeed),
224 	KOBJMETHOD(channel_setblocksize,	ua_chan_setblocksize),
225 	KOBJMETHOD(channel_trigger,		ua_chan_trigger),
226 	KOBJMETHOD(channel_getptr,		ua_chan_getptr),
227 	KOBJMETHOD(channel_getcaps,		ua_chan_getcaps),
228 	{ 0, 0 }
229 };
230 
231 CHANNEL_DECLARE(ua_chan);
232 
233 /************************************************************/
234 static int
235 ua_mixer_init(struct snd_mixer *m)
236 {
237 	u_int32_t mask;
238 	device_t pa_dev;
239 	struct snddev_info *d;
240 	struct ua_info *ua = mix_getdevinfo(m);
241 
242 	pa_dev = device_get_parent(ua->sc_dev);
243 	d = device_get_softc(ua->sc_dev);
244 
245 	mask = uaudio_query_mix_info(pa_dev);
246 	if (d != NULL) {
247 		if (!(mask & SOUND_MASK_PCM)) {
248 			/*
249 			 * Emulate missing pcm mixer controller
250 			 * through FEEDER_VOLUME
251 			 */
252 			 d->flags |= SD_F_SOFTPCMVOL;
253 		}
254 		if (!(mask & SOUND_MASK_VOLUME)) {
255 			mix_setparentchild(m, SOUND_MIXER_VOLUME,
256 			    SOUND_MASK_PCM);
257 			mix_setrealdev(m, SOUND_MIXER_VOLUME,
258 			    SOUND_MIXER_NONE);
259 		}
260 	}
261 	mix_setdevs(m,	mask);
262 
263 	mask = uaudio_query_recsrc_info(pa_dev);
264 	mix_setrecdevs(m, mask);
265 
266 	return 0;
267 }
268 
269 static int
270 ua_mixer_set(struct snd_mixer *m, unsigned type, unsigned left, unsigned right)
271 {
272 	device_t pa_dev;
273 	struct ua_info *ua = mix_getdevinfo(m);
274 
275 	pa_dev = device_get_parent(ua->sc_dev);
276 	uaudio_mixer_set(pa_dev, type, left, right);
277 
278 	return left | (right << 8);
279 }
280 
281 static int
282 ua_mixer_setrecsrc(struct snd_mixer *m, u_int32_t src)
283 {
284 	device_t pa_dev;
285 	struct ua_info *ua = mix_getdevinfo(m);
286 
287 	pa_dev = device_get_parent(ua->sc_dev);
288 	return uaudio_mixer_setrecsrc(pa_dev, src);
289 }
290 
291 static kobj_method_t ua_mixer_methods[] = {
292 	KOBJMETHOD(mixer_init,		ua_mixer_init),
293 	KOBJMETHOD(mixer_set,		ua_mixer_set),
294 	KOBJMETHOD(mixer_setrecsrc,	ua_mixer_setrecsrc),
295 
296 	{ 0, 0 }
297 };
298 MIXER_DECLARE(ua_mixer);
299 /************************************************************/
300 
301 
302 static int
303 ua_probe(device_t dev)
304 {
305 	char *s;
306 	struct sndcard_func *func;
307 
308 	/* The parent device has already been probed. */
309 
310 	func = device_get_ivars(dev);
311 	if (func == NULL || func->func != SCF_PCM)
312 		return (ENXIO);
313 
314 	s = "USB Audio";
315 
316 	device_set_desc(dev, s);
317 	return BUS_PROBE_DEFAULT;
318 }
319 
320 static int
321 ua_attach(device_t dev)
322 {
323 	struct ua_info *ua;
324 	char status[SND_STATUSLEN];
325 	device_t pa_dev;
326 	u_int32_t nplay, nrec;
327 	int i;
328 
329 	ua = (struct ua_info *)malloc(sizeof *ua, M_DEVBUF, M_ZERO | M_NOWAIT);
330 	if (ua == NULL)
331 		return ENXIO;
332 
333 	ua->sc_dev = dev;
334 
335 	pa_dev = device_get_parent(dev);
336 
337 	ua->bufsz = pcm_getbuffersize(dev, 4096, UAUDIO_DEFAULT_BUFSZ, 65536);
338 	if (bootverbose)
339 		device_printf(dev, "using a default buffer size of %jd\n", (intmax_t)ua->bufsz);
340 
341 	if (mixer_init(dev, &ua_mixer_class, ua)) {
342 		goto bad;
343 	}
344 
345 	snprintf(status, SND_STATUSLEN, "at ? %s", PCM_KLDSTRING(snd_uaudio));
346 
347 	ua->ua_playcaps.fmtlist = ua->ua_playfmt;
348 	ua->ua_reccaps.fmtlist = ua->ua_recfmt;
349 	nplay = uaudio_query_formats(pa_dev, PCMDIR_PLAY, FORMAT_NUM * 2, &ua->ua_playcaps);
350 	nrec = uaudio_query_formats(pa_dev, PCMDIR_REC, FORMAT_NUM * 2, &ua->ua_reccaps);
351 
352 	if (nplay > 1)
353 		nplay = 1;
354 	if (nrec > 1)
355 		nrec = 1;
356 
357 #ifndef NO_RECORDING
358 	if (pcm_register(dev, ua, nplay, nrec)) {
359 #else
360 	if (pcm_register(dev, ua, nplay, 0)) {
361 #endif
362 		goto bad;
363 	}
364 
365 	sndstat_unregister(dev);
366 	uaudio_sndstat_register(dev);
367 
368 	for (i = 0; i < nplay; i++) {
369 		pcm_addchan(dev, PCMDIR_PLAY, &ua_chan_class, ua);
370 	}
371 #ifndef NO_RECORDING
372 	for (i = 0; i < nrec; i++) {
373 		pcm_addchan(dev, PCMDIR_REC, &ua_chan_class, ua);
374 	}
375 #endif
376 	pcm_setstatus(dev, status);
377 
378 	return 0;
379 
380 bad:	free(ua, M_DEVBUF);
381 	return ENXIO;
382 }
383 
384 static int
385 ua_detach(device_t dev)
386 {
387 	int r;
388 	struct ua_info *sc;
389 
390 	r = pcm_unregister(dev);
391 	if (r)
392 		return r;
393 
394 	sc = pcm_getdevinfo(dev);
395 	free(sc, M_DEVBUF);
396 
397 	return 0;
398 }
399 
400 /************************************************************/
401 
402 static device_method_t ua_pcm_methods[] = {
403 	/* Device interface */
404 	DEVMETHOD(device_probe,		ua_probe),
405 	DEVMETHOD(device_attach,	ua_attach),
406 	DEVMETHOD(device_detach,	ua_detach),
407 
408 	{ 0, 0 }
409 };
410 
411 static driver_t ua_pcm_driver = {
412 	"pcm",
413 	ua_pcm_methods,
414 	PCM_SOFTC_SIZE,
415 };
416 
417 
418 DRIVER_MODULE(ua_pcm, uaudio, ua_pcm_driver, pcm_devclass, 0, 0);
419 MODULE_DEPEND(ua_pcm, uaudio, 1, 1, 1);
420 MODULE_DEPEND(ua_pcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
421 MODULE_VERSION(ua_pcm, 1);
422