uaudio_pcm.c revision 184610 
1/* $FreeBSD: head/sys/dev/usb2/sound/uaudio2_pcm.c 184610 2008-11-04 02:31:03Z alfred $ */
2
3/*-
4 * Copyright (c) 2000-2002 Hiroyuki Aizu <aizu@navi.org>
5 * Copyright (c) 2006 Hans Petter Selasky
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29
30#include <sys/soundcard.h>
31#include <dev/sound/pcm/sound.h>
32#include <dev/sound/chip.h>
33
34#include <dev/usb2/sound/uaudio2.h>
35
36#include "mixer_if.h"
37
38/************************************************************/
39static void *
40ua_chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
41{
42	return (uaudio_chan_init(devinfo, b, c, dir));
43}
44
45static int
46ua_chan_free(kobj_t obj, void *data)
47{
48	return (uaudio_chan_free(data));
49}
50
51static int
52ua_chan_setformat(kobj_t obj, void *data, uint32_t format)
53{
54	/*
55	 * At this point, no need to query as we
56	 * shouldn't select an unsorted format
57	 */
58	return (uaudio_chan_set_param_format(data, format));
59}
60
61static int
62ua_chan_setspeed(kobj_t obj, void *data, uint32_t speed)
63{
64	return (uaudio_chan_set_param_speed(data, speed));
65}
66
67static int
68ua_chan_setblocksize(kobj_t obj, void *data, uint32_t blocksize)
69{
70	return (uaudio_chan_set_param_blocksize(data, blocksize));
71}
72
73static int
74ua_chan_setfragments(kobj_t obj, void *data, uint32_t blocksize, uint32_t blockcount)
75{
76	return (uaudio_chan_set_param_fragments(data, blocksize, blockcount));
77}
78
79static int
80ua_chan_trigger(kobj_t obj, void *data, int go)
81{
82	if (!PCMTRIG_COMMON(go)) {
83		return (0);
84	}
85	if (go == PCMTRIG_START) {
86		return (uaudio_chan_start(data));
87	} else {
88		return (uaudio_chan_stop(data));
89	}
90}
91
92static int
93ua_chan_getptr(kobj_t obj, void *data)
94{
95	return (uaudio_chan_getptr(data));
96}
97
98static struct pcmchan_caps *
99ua_chan_getcaps(kobj_t obj, void *data)
100{
101	return (uaudio_chan_getcaps(data));
102}
103
104static kobj_method_t ua_chan_methods[] = {
105	KOBJMETHOD(channel_init, ua_chan_init),
106	KOBJMETHOD(channel_free, ua_chan_free),
107	KOBJMETHOD(channel_setformat, ua_chan_setformat),
108	KOBJMETHOD(channel_setspeed, ua_chan_setspeed),
109	KOBJMETHOD(channel_setblocksize, ua_chan_setblocksize),
110	KOBJMETHOD(channel_setfragments, ua_chan_setfragments),
111	KOBJMETHOD(channel_trigger, ua_chan_trigger),
112	KOBJMETHOD(channel_getptr, ua_chan_getptr),
113	KOBJMETHOD(channel_getcaps, ua_chan_getcaps),
114	{0, 0}
115};
116
117CHANNEL_DECLARE(ua_chan);
118
119/************************************************************/
120static int
121ua_mixer_init(struct snd_mixer *m)
122{
123	return (uaudio_mixer_init_sub(mix_getdevinfo(m), m));
124}
125
126static int
127ua_mixer_set(struct snd_mixer *m, unsigned type, unsigned left, unsigned right)
128{
129	struct mtx *mtx = mixer_get_lock(m);
130	uint8_t do_unlock;
131
132	if (mtx_owned(mtx)) {
133		do_unlock = 0;
134	} else {
135		do_unlock = 1;
136		mtx_lock(mtx);
137	}
138	uaudio_mixer_set(mix_getdevinfo(m), type, left, right);
139	if (do_unlock) {
140		mtx_unlock(mtx);
141	}
142	return (left | (right << 8));
143}
144
145static int
146ua_mixer_setrecsrc(struct snd_mixer *m, uint32_t src)
147{
148	struct mtx *mtx = mixer_get_lock(m);
149	int retval;
150	uint8_t do_unlock;
151
152	if (mtx_owned(mtx)) {
153		do_unlock = 0;
154	} else {
155		do_unlock = 1;
156		mtx_lock(mtx);
157	}
158	retval = uaudio_mixer_setrecsrc(mix_getdevinfo(m), src);
159	if (do_unlock) {
160		mtx_unlock(mtx);
161	}
162	return (retval);
163}
164
165static int
166ua_mixer_uninit(struct snd_mixer *m)
167{
168	return (uaudio_mixer_uninit_sub(mix_getdevinfo(m)));
169}
170
171static kobj_method_t ua_mixer_methods[] = {
172	KOBJMETHOD(mixer_init, ua_mixer_init),
173	KOBJMETHOD(mixer_uninit, ua_mixer_uninit),
174	KOBJMETHOD(mixer_set, ua_mixer_set),
175	KOBJMETHOD(mixer_setrecsrc, ua_mixer_setrecsrc),
176
177	{0, 0}
178};
179
180MIXER_DECLARE(ua_mixer);
181/************************************************************/
182
183
184static int
185ua_probe(device_t dev)
186{
187	struct sndcard_func *func;
188
189	/* the parent device has already been probed */
190
191	func = device_get_ivars(dev);
192
193	if ((func == NULL) ||
194	    (func->func != SCF_PCM)) {
195		return (ENXIO);
196	}
197	device_set_desc(dev, "USB audio");
198
199	return (BUS_PROBE_DEFAULT);
200}
201
202static int
203ua_attach(device_t dev)
204{
205	return (uaudio_attach_sub(dev, &ua_mixer_class, &ua_chan_class));
206}
207
208static int
209ua_detach(device_t dev)
210{
211	return (uaudio_detach_sub(dev));
212}
213
214/************************************************************/
215
216static device_method_t ua_pcm_methods[] = {
217	/* Device interface */
218	DEVMETHOD(device_probe, ua_probe),
219	DEVMETHOD(device_attach, ua_attach),
220	DEVMETHOD(device_detach, ua_detach),
221
222	{0, 0}
223};
224
225static driver_t ua_pcm_driver = {
226	"pcm",
227	ua_pcm_methods,
228	PCM_SOFTC_SIZE,
229};
230
231DRIVER_MODULE(ua_pcm, uaudio, ua_pcm_driver, pcm_devclass, 0, 0);
232MODULE_DEPEND(ua_pcm, uaudio, 1, 1, 1);
233MODULE_DEPEND(ua_pcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
234MODULE_VERSION(ua_pcm, 1);
235