xref: /freebsd/sys/dev/sound/usb/uaudio_pcm.c (revision a90b9d0159070121c221b966469c3e36d912bf82)
1 
2 /*-
3  * SPDX-License-Identifier: BSD-2-Clause
4  *
5  * Copyright (c) 2000-2002 Hiroyuki Aizu <aizu@navi.org>
6  * Copyright (c) 2006 Hans Petter Selasky
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
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/usb/uaudio.h>
36 
37 #include "mixer_if.h"
38 
39 /************************************************************/
40 static void *
41 ua_chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
42 {
43 	return (uaudio_chan_init(devinfo, b, c, dir));
44 }
45 
46 static int
47 ua_chan_free(kobj_t obj, void *data)
48 {
49 	return (uaudio_chan_free(data));
50 }
51 
52 static int
53 ua_chan_setformat(kobj_t obj, void *data, uint32_t format)
54 {
55 	/*
56 	 * At this point, no need to query as we
57 	 * shouldn't select an unsorted format
58 	 */
59 	return (uaudio_chan_set_param_format(data, format));
60 }
61 
62 static uint32_t
63 ua_chan_setspeed(kobj_t obj, void *data, uint32_t speed)
64 {
65 	return (uaudio_chan_set_param_speed(data, speed));
66 }
67 
68 static uint32_t
69 ua_chan_setblocksize(kobj_t obj, void *data, uint32_t blocksize)
70 {
71 	return (uaudio_chan_set_param_blocksize(data, blocksize));
72 }
73 
74 static int
75 ua_chan_setfragments(kobj_t obj, void *data, uint32_t blocksize, uint32_t blockcount)
76 {
77 	return (uaudio_chan_set_param_fragments(data, blocksize, blockcount));
78 }
79 
80 static int
81 ua_chan_trigger(kobj_t obj, void *data, int go)
82 {
83 	if (PCMTRIG_COMMON(go)) {
84 		if (go == PCMTRIG_START) {
85 			uaudio_chan_start(data);
86 		} else {
87 			uaudio_chan_stop(data);
88 		}
89 	}
90 	return (0);
91 }
92 
93 static uint32_t
94 ua_chan_getptr(kobj_t obj, void *data)
95 {
96 	return (uaudio_chan_getptr(data));
97 }
98 
99 static struct pcmchan_caps *
100 ua_chan_getcaps(kobj_t obj, void *data)
101 {
102 	return (uaudio_chan_getcaps(data));
103 }
104 
105 static struct pcmchan_matrix *
106 ua_chan_getmatrix(kobj_t obj, void *data, uint32_t format)
107 {
108 	return (uaudio_chan_getmatrix(data, format));
109 }
110 
111 static kobj_method_t ua_chan_methods[] = {
112 	KOBJMETHOD(channel_init, ua_chan_init),
113 	KOBJMETHOD(channel_free, ua_chan_free),
114 	KOBJMETHOD(channel_setformat, ua_chan_setformat),
115 	KOBJMETHOD(channel_setspeed, ua_chan_setspeed),
116 	KOBJMETHOD(channel_setblocksize, ua_chan_setblocksize),
117 	KOBJMETHOD(channel_setfragments, ua_chan_setfragments),
118 	KOBJMETHOD(channel_trigger, ua_chan_trigger),
119 	KOBJMETHOD(channel_getptr, ua_chan_getptr),
120 	KOBJMETHOD(channel_getcaps, ua_chan_getcaps),
121 	KOBJMETHOD(channel_getmatrix, ua_chan_getmatrix),
122 	KOBJMETHOD_END
123 };
124 
125 CHANNEL_DECLARE(ua_chan);
126 
127 /************************************************************/
128 static int
129 ua_mixer_init(struct snd_mixer *m)
130 {
131 	return (uaudio_mixer_init_sub(mix_getdevinfo(m), m));
132 }
133 
134 static int
135 ua_mixer_set(struct snd_mixer *m, unsigned type, unsigned left, unsigned right)
136 {
137 	struct mtx *mtx = mixer_get_lock(m);
138 	uint8_t do_unlock;
139 
140 	if (mtx_owned(mtx)) {
141 		do_unlock = 0;
142 	} else {
143 		do_unlock = 1;
144 		mtx_lock(mtx);
145 	}
146 	uaudio_mixer_set(mix_getdevinfo(m), m, type, left, right);
147 	if (do_unlock) {
148 		mtx_unlock(mtx);
149 	}
150 	return (left | (right << 8));
151 }
152 
153 static uint32_t
154 ua_mixer_setrecsrc(struct snd_mixer *m, uint32_t src)
155 {
156 	struct mtx *mtx = mixer_get_lock(m);
157 	int retval;
158 	uint8_t do_unlock;
159 
160 	if (mtx_owned(mtx)) {
161 		do_unlock = 0;
162 	} else {
163 		do_unlock = 1;
164 		mtx_lock(mtx);
165 	}
166 	retval = uaudio_mixer_setrecsrc(mix_getdevinfo(m), m, src);
167 	if (do_unlock) {
168 		mtx_unlock(mtx);
169 	}
170 	return (retval);
171 }
172 
173 static int
174 ua_mixer_uninit(struct snd_mixer *m)
175 {
176 	return (uaudio_mixer_uninit_sub(mix_getdevinfo(m), m));
177 }
178 
179 static kobj_method_t ua_mixer_methods[] = {
180 	KOBJMETHOD(mixer_init, ua_mixer_init),
181 	KOBJMETHOD(mixer_uninit, ua_mixer_uninit),
182 	KOBJMETHOD(mixer_set, ua_mixer_set),
183 	KOBJMETHOD(mixer_setrecsrc, ua_mixer_setrecsrc),
184 	KOBJMETHOD_END
185 };
186 
187 MIXER_DECLARE(ua_mixer);
188 /************************************************************/
189 
190 static int
191 ua_probe(device_t dev)
192 {
193 	struct sndcard_func *func;
194 
195 	/* the parent device has already been probed */
196 
197 	func = device_get_ivars(dev);
198 
199 	if ((func == NULL) ||
200 	    (func->func != SCF_PCM)) {
201 		return (ENXIO);
202 	}
203 
204 	return (BUS_PROBE_DEFAULT);
205 }
206 
207 static int
208 ua_attach(device_t dev)
209 {
210 	return (uaudio_attach_sub(dev, &ua_mixer_class, &ua_chan_class));
211 }
212 
213 static int
214 ua_detach(device_t dev)
215 {
216 	return (uaudio_detach_sub(dev));
217 }
218 
219 /************************************************************/
220 
221 static device_method_t ua_pcm_methods[] = {
222 	/* Device interface */
223 	DEVMETHOD(device_probe, ua_probe),
224 	DEVMETHOD(device_attach, ua_attach),
225 	DEVMETHOD(device_detach, ua_detach),
226 
227 	DEVMETHOD_END
228 };
229 
230 static driver_t ua_pcm_driver = {
231 	"pcm",
232 	ua_pcm_methods,
233 	PCM_SOFTC_SIZE,
234 };
235 
236 DRIVER_MODULE(ua_pcm, uaudio, ua_pcm_driver, 0, 0);
237 MODULE_DEPEND(ua_pcm, snd_uaudio, 1, 1, 1);
238 MODULE_DEPEND(ua_pcm, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
239 MODULE_VERSION(ua_pcm, 1);
240