usb4bsd: Use NULL for pointers.
[dragonfly.git] / sys / bus / u4b / audio / uaudio_pcm.c
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1/* $FreeBSD$ */
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#ifdef HAVE_KERNEL_OPTION_HEADERS
31#include "opt_snd.h"
32#endif
33
34#include <dev/sound/pcm/sound.h>
35#include <dev/sound/chip.h>
5a82fc1a 36#include <bus/u4b/audio/uaudio.h>
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37
38#include "mixer_if.h"
39
40/************************************************************/
41static void *
42ua_chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
43{
44 return (uaudio_chan_init(devinfo, b, c, dir));
45}
46
47static int
48ua_chan_free(kobj_t obj, void *data)
49{
50 return (uaudio_chan_free(data));
51}
52
53static int
54ua_chan_setformat(kobj_t obj, void *data, uint32_t format)
55{
56 /*
57 * At this point, no need to query as we
58 * shouldn't select an unsorted format
59 */
60 return (uaudio_chan_set_param_format(data, format));
61}
62
63static uint32_t
64ua_chan_setspeed(kobj_t obj, void *data, uint32_t speed)
65{
66 return (uaudio_chan_set_param_speed(data, speed));
67}
68
69static uint32_t
70ua_chan_setblocksize(kobj_t obj, void *data, uint32_t blocksize)
71{
72 return (uaudio_chan_set_param_blocksize(data, blocksize));
73}
74
75static int
76ua_chan_setfragments(kobj_t obj, void *data, uint32_t blocksize, uint32_t blockcount)
77{
78 return (uaudio_chan_set_param_fragments(data, blocksize, blockcount));
79}
80
81static int
82ua_chan_trigger(kobj_t obj, void *data, int go)
83{
84 if (!PCMTRIG_COMMON(go)) {
85 return (0);
86 }
87 if (go == PCMTRIG_START) {
88 return (uaudio_chan_start(data));
89 } else {
90 return (uaudio_chan_stop(data));
91 }
92}
93
94static uint32_t
95ua_chan_getptr(kobj_t obj, void *data)
96{
97 return (uaudio_chan_getptr(data));
98}
99
100static struct pcmchan_caps *
101ua_chan_getcaps(kobj_t obj, void *data)
102{
103 return (uaudio_chan_getcaps(data));
104}
105
106static struct pcmchan_matrix *
107ua_chan_getmatrix(kobj_t obj, void *data, uint32_t format)
108{
109 return (uaudio_chan_getmatrix(data, format));
110}
111
112static kobj_method_t ua_chan_methods[] = {
113 KOBJMETHOD(channel_init, ua_chan_init),
114 KOBJMETHOD(channel_free, ua_chan_free),
115 KOBJMETHOD(channel_setformat, ua_chan_setformat),
116 KOBJMETHOD(channel_setspeed, ua_chan_setspeed),
117 KOBJMETHOD(channel_setblocksize, ua_chan_setblocksize),
5a82fc1a 118#if 0
09b9c6f2 119 KOBJMETHOD(channel_setfragments, ua_chan_setfragments),
5a82fc1a 120#endif
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121 KOBJMETHOD(channel_trigger, ua_chan_trigger),
122 KOBJMETHOD(channel_getptr, ua_chan_getptr),
123 KOBJMETHOD(channel_getcaps, ua_chan_getcaps),
5a82fc1a 124#if 0
09b9c6f2 125 KOBJMETHOD(channel_getmatrix, ua_chan_getmatrix),
5a82fc1a 126#endif
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127 KOBJMETHOD_END
128};
129
130CHANNEL_DECLARE(ua_chan);
131
132/************************************************************/
133static int
134ua_mixer_init(struct snd_mixer *m)
135{
136 return (uaudio_mixer_init_sub(mix_getdevinfo(m), m));
137}
138
139static int
140ua_mixer_set(struct snd_mixer *m, unsigned type, unsigned left, unsigned right)
141{
5a82fc1a 142 struct lock *lock = mixer_get_lock(m);
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143 uint8_t do_unlock;
144
5a82fc1a 145 if (lockstatus(lock, curthread)) {
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146 do_unlock = 0;
147 } else {
148 do_unlock = 1;
5a82fc1a 149 lockmgr(lock, LK_EXCLUSIVE);
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150 }
151 uaudio_mixer_set(mix_getdevinfo(m), type, left, right);
152 if (do_unlock) {
5a82fc1a 153 lockmgr(lock, LK_RELEASE);
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154 }
155 return (left | (right << 8));
156}
157
158static uint32_t
159ua_mixer_setrecsrc(struct snd_mixer *m, uint32_t src)
160{
5a82fc1a 161 struct lock *lock = mixer_get_lock(m);
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162 int retval;
163 uint8_t do_unlock;
164
5a82fc1a 165 if (lockstatus(lock, curthread)) {
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166 do_unlock = 0;
167 } else {
168 do_unlock = 1;
5a82fc1a 169 lockmgr(lock, LK_EXCLUSIVE);
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170 }
171 retval = uaudio_mixer_setrecsrc(mix_getdevinfo(m), src);
172 if (do_unlock) {
5a82fc1a 173 lockmgr(lock, LK_RELEASE);
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174 }
175 return (retval);
176}
177
178static int
179ua_mixer_uninit(struct snd_mixer *m)
180{
181 return (uaudio_mixer_uninit_sub(mix_getdevinfo(m)));
182}
183
184static kobj_method_t ua_mixer_methods[] = {
185 KOBJMETHOD(mixer_init, ua_mixer_init),
186 KOBJMETHOD(mixer_uninit, ua_mixer_uninit),
187 KOBJMETHOD(mixer_set, ua_mixer_set),
188 KOBJMETHOD(mixer_setrecsrc, ua_mixer_setrecsrc),
189 KOBJMETHOD_END
190};
191
192MIXER_DECLARE(ua_mixer);
193/************************************************************/
194
195
196static int
197ua_probe(device_t dev)
198{
199 struct sndcard_func *func;
200
201 /* the parent device has already been probed */
202
203 func = device_get_ivars(dev);
204
205 if ((func == NULL) ||
206 (func->func != SCF_PCM)) {
207 return (ENXIO);
208 }
209 device_set_desc(dev, "USB audio");
210
211 return (BUS_PROBE_DEFAULT);
212}
213
214static int
215ua_attach(device_t dev)
216{
217 return (uaudio_attach_sub(dev, &ua_mixer_class, &ua_chan_class));
218}
219
220static int
221ua_detach(device_t dev)
222{
223 return (uaudio_detach_sub(dev));
224}
225
226/************************************************************/
227
228static device_method_t ua_pcm_methods[] = {
229 /* Device interface */
230 DEVMETHOD(device_probe, ua_probe),
231 DEVMETHOD(device_attach, ua_attach),
232 DEVMETHOD(device_detach, ua_detach),
233
234 {0, 0}
235};
236
237static driver_t ua_pcm_driver = {
238 "pcm",
239 ua_pcm_methods,
240 PCM_SOFTC_SIZE,
241};
242
15f415f6 243DRIVER_MODULE(ua_pcm, uaudio, ua_pcm_driver, pcm_devclass, NULL, NULL);
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244MODULE_DEPEND(ua_pcm, uaudio, 1, 1, 1);
245MODULE_DEPEND(ua_pcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
246MODULE_VERSION(ua_pcm, 1);