pad.c revision 1.54 1 1.54 nakayama /* $NetBSD: pad.c,v 1.54 2018/09/23 21:18:30 nakayama Exp $ */
2 1.1 jmcneill
3 1.1 jmcneill /*-
4 1.1 jmcneill * Copyright (c) 2007 Jared D. McNeill <jmcneill (at) invisible.ca>
5 1.1 jmcneill * All rights reserved.
6 1.1 jmcneill *
7 1.1 jmcneill * Redistribution and use in source and binary forms, with or without
8 1.1 jmcneill * modification, are permitted provided that the following conditions
9 1.1 jmcneill * are met:
10 1.1 jmcneill * 1. Redistributions of source code must retain the above copyright
11 1.1 jmcneill * notice, this list of conditions and the following disclaimer.
12 1.1 jmcneill * 2. Redistributions in binary form must reproduce the above copyright
13 1.1 jmcneill * notice, this list of conditions and the following disclaimer in the
14 1.1 jmcneill * documentation and/or other materials provided with the distribution.
15 1.1 jmcneill *
16 1.1 jmcneill * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 1.1 jmcneill * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 1.1 jmcneill * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 1.1 jmcneill * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 1.1 jmcneill * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 1.1 jmcneill * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 1.1 jmcneill * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 1.1 jmcneill * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 1.1 jmcneill * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 1.1 jmcneill * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 1.1 jmcneill * POSSIBILITY OF SUCH DAMAGE.
27 1.1 jmcneill */
28 1.1 jmcneill
29 1.1 jmcneill #include <sys/cdefs.h>
30 1.54 nakayama __KERNEL_RCSID(0, "$NetBSD: pad.c,v 1.54 2018/09/23 21:18:30 nakayama Exp $");
31 1.1 jmcneill
32 1.1 jmcneill #include <sys/types.h>
33 1.1 jmcneill #include <sys/param.h>
34 1.1 jmcneill #include <sys/conf.h>
35 1.1 jmcneill #include <sys/buf.h>
36 1.1 jmcneill #include <sys/kmem.h>
37 1.1 jmcneill #include <sys/kernel.h>
38 1.1 jmcneill #include <sys/device.h>
39 1.1 jmcneill #include <sys/proc.h>
40 1.1 jmcneill #include <sys/condvar.h>
41 1.1 jmcneill #include <sys/select.h>
42 1.1 jmcneill #include <sys/audioio.h>
43 1.5 dyoung #include <sys/vnode.h>
44 1.13 ahoka #include <sys/module.h>
45 1.17 jmcneill #include <sys/atomic.h>
46 1.24 nat #include <sys/time.h>
47 1.1 jmcneill
48 1.1 jmcneill #include <dev/audio_if.h>
49 1.1 jmcneill #include <dev/audiovar.h>
50 1.1 jmcneill #include <dev/auconv.h>
51 1.22 jmcneill #include <dev/auvolconv.h>
52 1.1 jmcneill
53 1.2 jmcneill #include <dev/pad/padvar.h>
54 1.2 jmcneill
55 1.1 jmcneill #define PADUNIT(x) minor(x)
56 1.1 jmcneill
57 1.1 jmcneill extern struct cfdriver pad_cd;
58 1.1 jmcneill
59 1.1 jmcneill typedef struct pad_block {
60 1.1 jmcneill uint8_t *pb_ptr;
61 1.1 jmcneill int pb_len;
62 1.1 jmcneill } pad_block_t;
63 1.1 jmcneill
64 1.2 jmcneill enum {
65 1.2 jmcneill PAD_OUTPUT_CLASS,
66 1.2 jmcneill PAD_INPUT_CLASS,
67 1.2 jmcneill PAD_OUTPUT_MASTER_VOLUME,
68 1.2 jmcneill PAD_INPUT_DAC_VOLUME,
69 1.2 jmcneill PAD_ENUM_LAST,
70 1.2 jmcneill };
71 1.1 jmcneill
72 1.10 christos static int pad_match(device_t, cfdata_t, void *);
73 1.5 dyoung static void pad_attach(device_t, device_t, void *);
74 1.5 dyoung static int pad_detach(device_t, int);
75 1.5 dyoung static void pad_childdet(device_t, device_t);
76 1.1 jmcneill
77 1.26 nat static int pad_audio_open(void *, int);
78 1.1 jmcneill static int pad_query_encoding(void *, struct audio_encoding *);
79 1.1 jmcneill static int pad_set_params(void *, int, int,
80 1.1 jmcneill audio_params_t *, audio_params_t *,
81 1.1 jmcneill stream_filter_list_t *, stream_filter_list_t *);
82 1.1 jmcneill static int pad_start_output(void *, void *, int,
83 1.1 jmcneill void (*)(void *), void *);
84 1.1 jmcneill static int pad_start_input(void *, void *, int,
85 1.1 jmcneill void (*)(void *), void *);
86 1.1 jmcneill static int pad_halt_output(void *);
87 1.1 jmcneill static int pad_halt_input(void *);
88 1.1 jmcneill static int pad_getdev(void *, struct audio_device *);
89 1.1 jmcneill static int pad_set_port(void *, mixer_ctrl_t *);
90 1.1 jmcneill static int pad_get_port(void *, mixer_ctrl_t *);
91 1.1 jmcneill static int pad_query_devinfo(void *, mixer_devinfo_t *);
92 1.1 jmcneill static int pad_get_props(void *);
93 1.1 jmcneill static int pad_round_blocksize(void *, int, int, const audio_params_t *);
94 1.17 jmcneill static void pad_get_locks(void *, kmutex_t **, kmutex_t **);
95 1.1 jmcneill
96 1.22 jmcneill static stream_filter_t *pad_swvol_filter_le(struct audio_softc *,
97 1.22 jmcneill const audio_params_t *, const audio_params_t *);
98 1.22 jmcneill static stream_filter_t *pad_swvol_filter_be(struct audio_softc *,
99 1.22 jmcneill const audio_params_t *, const audio_params_t *);
100 1.22 jmcneill static void pad_swvol_dtor(stream_filter_t *);
101 1.22 jmcneill
102 1.54 nakayama static bool pad_is_attached; /* Do we have an audio* child? */
103 1.32 pgoyette
104 1.1 jmcneill static const struct audio_hw_if pad_hw_if = {
105 1.26 nat .open = pad_audio_open,
106 1.1 jmcneill .query_encoding = pad_query_encoding,
107 1.1 jmcneill .set_params = pad_set_params,
108 1.1 jmcneill .start_output = pad_start_output,
109 1.1 jmcneill .start_input = pad_start_input,
110 1.1 jmcneill .halt_output = pad_halt_output,
111 1.1 jmcneill .halt_input = pad_halt_input,
112 1.1 jmcneill .getdev = pad_getdev,
113 1.1 jmcneill .set_port = pad_set_port,
114 1.1 jmcneill .get_port = pad_get_port,
115 1.1 jmcneill .query_devinfo = pad_query_devinfo,
116 1.1 jmcneill .get_props = pad_get_props,
117 1.1 jmcneill .round_blocksize = pad_round_blocksize,
118 1.17 jmcneill .get_locks = pad_get_locks,
119 1.1 jmcneill };
120 1.1 jmcneill
121 1.1 jmcneill #define PAD_NFORMATS 1
122 1.1 jmcneill static const struct audio_format pad_formats[PAD_NFORMATS] = {
123 1.54 nakayama { NULL, AUMODE_PLAY|AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16,
124 1.54 nakayama 2, AUFMT_STEREO, 1, { 44100 } },
125 1.1 jmcneill };
126 1.1 jmcneill
127 1.1 jmcneill extern void padattach(int);
128 1.1 jmcneill
129 1.25 msaitoh static int pad_add_block(pad_softc_t *, uint8_t *, int);
130 1.25 msaitoh static int pad_get_block(pad_softc_t *, pad_block_t *, int);
131 1.1 jmcneill
132 1.1 jmcneill dev_type_open(pad_open);
133 1.54 nakayama dev_type_close(pad_close);
134 1.54 nakayama dev_type_read(pad_read);
135 1.1 jmcneill
136 1.1 jmcneill const struct cdevsw pad_cdevsw = {
137 1.1 jmcneill .d_open = pad_open,
138 1.54 nakayama .d_close = pad_close,
139 1.54 nakayama .d_read = pad_read,
140 1.1 jmcneill .d_write = nowrite,
141 1.1 jmcneill .d_ioctl = noioctl,
142 1.1 jmcneill .d_stop = nostop,
143 1.1 jmcneill .d_tty = notty,
144 1.1 jmcneill .d_poll = nopoll,
145 1.1 jmcneill .d_mmap = nommap,
146 1.1 jmcneill .d_kqfilter = nokqfilter,
147 1.21 dholland .d_discard = nodiscard,
148 1.17 jmcneill .d_flag = D_OTHER | D_MPSAFE,
149 1.1 jmcneill };
150 1.1 jmcneill
151 1.10 christos CFATTACH_DECL2_NEW(pad, sizeof(pad_softc_t), pad_match, pad_attach, pad_detach,
152 1.5 dyoung NULL, NULL, pad_childdet);
153 1.1 jmcneill
154 1.1 jmcneill void
155 1.1 jmcneill padattach(int n)
156 1.1 jmcneill {
157 1.54 nakayama int i, err;
158 1.54 nakayama cfdata_t cf;
159 1.1 jmcneill
160 1.54 nakayama aprint_debug("pad: requested %d units\n", n);
161 1.54 nakayama
162 1.54 nakayama err = config_cfattach_attach(pad_cd.cd_name, &pad_ca);
163 1.54 nakayama if (err) {
164 1.1 jmcneill aprint_error("%s: couldn't register cfattach: %d\n",
165 1.54 nakayama pad_cd.cd_name, err);
166 1.1 jmcneill config_cfdriver_detach(&pad_cd);
167 1.1 jmcneill return;
168 1.1 jmcneill }
169 1.54 nakayama
170 1.54 nakayama for (i = 0; i < n; i++) {
171 1.54 nakayama cf = kmem_alloc(sizeof(struct cfdata), KM_SLEEP);
172 1.54 nakayama cf->cf_name = pad_cd.cd_name;
173 1.54 nakayama cf->cf_atname = pad_cd.cd_name;
174 1.54 nakayama cf->cf_unit = i;
175 1.54 nakayama cf->cf_fstate = FSTATE_STAR;
176 1.54 nakayama
177 1.54 nakayama (void)config_attach_pseudo(cf);
178 1.54 nakayama }
179 1.1 jmcneill
180 1.1 jmcneill return;
181 1.1 jmcneill }
182 1.1 jmcneill
183 1.1 jmcneill static int
184 1.1 jmcneill pad_add_block(pad_softc_t *sc, uint8_t *blk, int blksize)
185 1.1 jmcneill {
186 1.1 jmcneill int l;
187 1.1 jmcneill
188 1.16 jmcneill if (sc->sc_open == 0)
189 1.16 jmcneill return EIO;
190 1.16 jmcneill
191 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
192 1.17 jmcneill
193 1.1 jmcneill if (sc->sc_buflen + blksize > PAD_BUFSIZE)
194 1.1 jmcneill return ENOBUFS;
195 1.1 jmcneill
196 1.1 jmcneill if (sc->sc_wpos + blksize <= PAD_BUFSIZE)
197 1.1 jmcneill memcpy(sc->sc_audiobuf + sc->sc_wpos, blk, blksize);
198 1.1 jmcneill else {
199 1.1 jmcneill l = PAD_BUFSIZE - sc->sc_wpos;
200 1.1 jmcneill memcpy(sc->sc_audiobuf + sc->sc_wpos, blk, l);
201 1.1 jmcneill memcpy(sc->sc_audiobuf, blk + l, blksize - l);
202 1.1 jmcneill }
203 1.1 jmcneill
204 1.1 jmcneill sc->sc_wpos += blksize;
205 1.1 jmcneill if (sc->sc_wpos > PAD_BUFSIZE)
206 1.1 jmcneill sc->sc_wpos -= PAD_BUFSIZE;
207 1.1 jmcneill
208 1.1 jmcneill sc->sc_buflen += blksize;
209 1.1 jmcneill
210 1.1 jmcneill return 0;
211 1.1 jmcneill }
212 1.1 jmcneill
213 1.1 jmcneill static int
214 1.1 jmcneill pad_get_block(pad_softc_t *sc, pad_block_t *pb, int blksize)
215 1.1 jmcneill {
216 1.1 jmcneill int l;
217 1.1 jmcneill
218 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
219 1.1 jmcneill KASSERT(pb != NULL);
220 1.1 jmcneill
221 1.54 nakayama if (sc->sc_buflen < blksize)
222 1.1 jmcneill return ERESTART;
223 1.1 jmcneill
224 1.1 jmcneill pb->pb_ptr = (sc->sc_audiobuf + sc->sc_rpos);
225 1.1 jmcneill if (sc->sc_rpos + blksize < PAD_BUFSIZE) {
226 1.1 jmcneill pb->pb_len = blksize;
227 1.1 jmcneill sc->sc_rpos += blksize;
228 1.1 jmcneill } else {
229 1.1 jmcneill l = PAD_BUFSIZE - sc->sc_rpos;
230 1.1 jmcneill pb->pb_len = l;
231 1.1 jmcneill sc->sc_rpos = 0;
232 1.1 jmcneill }
233 1.1 jmcneill sc->sc_buflen -= pb->pb_len;
234 1.1 jmcneill
235 1.1 jmcneill return 0;
236 1.1 jmcneill }
237 1.1 jmcneill
238 1.1 jmcneill static int
239 1.10 christos pad_match(device_t parent, cfdata_t data, void *opaque)
240 1.1 jmcneill {
241 1.17 jmcneill
242 1.1 jmcneill return 1;
243 1.1 jmcneill }
244 1.1 jmcneill
245 1.1 jmcneill static void
246 1.5 dyoung pad_childdet(device_t self, device_t child)
247 1.1 jmcneill {
248 1.5 dyoung pad_softc_t *sc = device_private(self);
249 1.5 dyoung
250 1.5 dyoung sc->sc_audiodev = NULL;
251 1.5 dyoung }
252 1.1 jmcneill
253 1.5 dyoung static void
254 1.5 dyoung pad_attach(device_t parent, device_t self, void *opaque)
255 1.5 dyoung {
256 1.54 nakayama pad_softc_t *sc = device_private(self);
257 1.54 nakayama
258 1.1 jmcneill aprint_normal_dev(self, "outputs: 44100Hz, 16-bit, stereo\n");
259 1.1 jmcneill
260 1.54 nakayama sc->sc_dev = self;
261 1.54 nakayama sc->sc_open = 0;
262 1.39 nat if (auconv_create_encodings(pad_formats, PAD_NFORMATS,
263 1.39 nat &sc->sc_encodings) != 0) {
264 1.54 nakayama aprint_error_dev(self, "couldn't create encodings\n");
265 1.54 nakayama return;
266 1.39 nat }
267 1.39 nat
268 1.54 nakayama cv_init(&sc->sc_condvar, device_xname(self));
269 1.39 nat mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
270 1.39 nat mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_NONE);
271 1.39 nat
272 1.39 nat sc->sc_swvol = 255;
273 1.39 nat sc->sc_buflen = 0;
274 1.39 nat sc->sc_rpos = sc->sc_wpos = 0;
275 1.54 nakayama sc->sc_audiodev = (void *)audio_attach_mi(&pad_hw_if, sc, sc->sc_dev);
276 1.39 nat
277 1.54 nakayama if (!pmf_device_register(self, NULL, NULL))
278 1.54 nakayama aprint_error_dev(self, "couldn't establish power handler\n");
279 1.39 nat
280 1.54 nakayama pad_is_attached = true;
281 1.54 nakayama return;
282 1.1 jmcneill }
283 1.1 jmcneill
284 1.39 nat static int
285 1.54 nakayama pad_detach(device_t self, int flags)
286 1.41 nat {
287 1.54 nakayama pad_softc_t *sc = device_private(self);
288 1.54 nakayama int cmaj, mn, rc;
289 1.50 nat
290 1.54 nakayama if (!pad_is_attached)
291 1.41 nat return ENXIO;
292 1.41 nat
293 1.54 nakayama cmaj = cdevsw_lookup_major(&pad_cdevsw);
294 1.54 nakayama mn = device_unit(self);
295 1.54 nakayama vdevgone(cmaj, mn, mn, VCHR);
296 1.54 nakayama
297 1.54 nakayama if ((rc = config_detach_children(self, flags)) != 0)
298 1.50 nat return rc;
299 1.50 nat
300 1.54 nakayama pmf_device_deregister(self);
301 1.50 nat
302 1.50 nat mutex_destroy(&sc->sc_lock);
303 1.50 nat mutex_destroy(&sc->sc_intr_lock);
304 1.50 nat cv_destroy(&sc->sc_condvar);
305 1.50 nat
306 1.50 nat auconv_delete_encodings(sc->sc_encodings);
307 1.50 nat
308 1.54 nakayama pad_is_attached = false;
309 1.54 nakayama return 0;
310 1.41 nat }
311 1.41 nat
312 1.54 nakayama int
313 1.54 nakayama pad_open(dev_t dev, int flags, int fmt, struct lwp *l)
314 1.1 jmcneill {
315 1.1 jmcneill pad_softc_t *sc;
316 1.1 jmcneill
317 1.54 nakayama sc = device_lookup_private(&pad_cd, PADUNIT(dev));
318 1.54 nakayama if (sc == NULL)
319 1.54 nakayama return ENXIO;
320 1.1 jmcneill
321 1.54 nakayama if (atomic_swap_uint(&sc->sc_open, 1) != 0) {
322 1.54 nakayama return EBUSY;
323 1.54 nakayama }
324 1.54 nakayama
325 1.54 nakayama return 0;
326 1.41 nat }
327 1.39 nat
328 1.41 nat int
329 1.54 nakayama pad_close(dev_t dev, int flags, int fmt, struct lwp *l)
330 1.41 nat {
331 1.41 nat pad_softc_t *sc;
332 1.39 nat
333 1.54 nakayama sc = device_lookup_private(&pad_cd, PADUNIT(dev));
334 1.39 nat if (sc == NULL)
335 1.54 nakayama return ENXIO;
336 1.39 nat
337 1.54 nakayama KASSERT(sc->sc_open > 0);
338 1.54 nakayama sc->sc_open = 0;
339 1.1 jmcneill
340 1.1 jmcneill return 0;
341 1.1 jmcneill }
342 1.1 jmcneill
343 1.54 nakayama #define PAD_BYTES_PER_SEC (44100 * sizeof(int16_t) * 2)
344 1.54 nakayama #define BYTESTOSLEEP (int64_t)(PAD_BLKSIZE)
345 1.33 nat #define TIMENEXTREAD (int64_t)(BYTESTOSLEEP * 1000000 / PAD_BYTES_PER_SEC)
346 1.24 nat
347 1.41 nat int
348 1.54 nakayama pad_read(dev_t dev, struct uio *uio, int flags)
349 1.1 jmcneill {
350 1.24 nat struct timeval now;
351 1.24 nat uint64_t nowusec, lastusec;
352 1.54 nakayama pad_softc_t *sc;
353 1.1 jmcneill pad_block_t pb;
354 1.1 jmcneill void (*intr)(void *);
355 1.1 jmcneill void *intrarg;
356 1.24 nat int err, wait_ticks;
357 1.1 jmcneill
358 1.54 nakayama sc = device_lookup_private(&pad_cd, PADUNIT(dev));
359 1.54 nakayama if (sc == NULL)
360 1.54 nakayama return ENXIO;
361 1.54 nakayama
362 1.1 jmcneill err = 0;
363 1.1 jmcneill
364 1.27 nat while (uio->uio_resid > 0 && !err) {
365 1.27 nat mutex_enter(&sc->sc_lock);
366 1.27 nat intr = sc->sc_intr;
367 1.27 nat intrarg = sc->sc_intrarg;
368 1.1 jmcneill
369 1.24 nat getmicrotime(&now);
370 1.24 nat nowusec = (now.tv_sec * 1000000) + now.tv_usec;
371 1.24 nat lastusec = (sc->sc_last.tv_sec * 1000000) +
372 1.24 nat sc->sc_last.tv_usec;
373 1.35 nat if (lastusec + TIMENEXTREAD > nowusec) {
374 1.35 nat if (sc->sc_bytes_count >= BYTESTOSLEEP) {
375 1.35 nat sc->sc_remainder +=
376 1.35 nat ((lastusec + TIMENEXTREAD) - nowusec);
377 1.35 nat }
378 1.29 nat
379 1.29 nat wait_ticks = (hz * sc->sc_remainder) / 1000000;
380 1.24 nat if (wait_ticks > 0) {
381 1.29 nat sc->sc_remainder -= wait_ticks * 1000000 / hz;
382 1.54 nakayama kpause("padwait", TRUE, wait_ticks,
383 1.28 nat &sc->sc_lock);
384 1.24 nat }
385 1.35 nat }
386 1.29 nat
387 1.35 nat if (sc->sc_bytes_count >= BYTESTOSLEEP)
388 1.29 nat sc->sc_bytes_count -= BYTESTOSLEEP;
389 1.29 nat
390 1.54 nakayama err = pad_get_block(sc, &pb, min(uio->uio_resid, PAD_BLKSIZE));
391 1.17 jmcneill if (!err) {
392 1.35 nat getmicrotime(&sc->sc_last);
393 1.30 nat sc->sc_bytes_count += pb.pb_len;
394 1.17 jmcneill mutex_exit(&sc->sc_lock);
395 1.1 jmcneill err = uiomove(pb.pb_ptr, pb.pb_len, uio);
396 1.17 jmcneill continue;
397 1.17 jmcneill }
398 1.1 jmcneill
399 1.17 jmcneill if (intr) {
400 1.17 jmcneill mutex_enter(&sc->sc_intr_lock);
401 1.24 nat kpreempt_disable();
402 1.17 jmcneill (*intr)(intrarg);
403 1.24 nat kpreempt_enable();
404 1.17 jmcneill mutex_exit(&sc->sc_intr_lock);
405 1.1 jmcneill intr = sc->sc_intr;
406 1.1 jmcneill intrarg = sc->sc_intrarg;
407 1.1 jmcneill err = 0;
408 1.27 nat mutex_exit(&sc->sc_lock);
409 1.17 jmcneill continue;
410 1.17 jmcneill }
411 1.17 jmcneill err = cv_wait_sig(&sc->sc_condvar, &sc->sc_lock);
412 1.27 nat if (err != 0) {
413 1.27 nat mutex_exit(&sc->sc_lock);
414 1.24 nat break;
415 1.27 nat }
416 1.24 nat
417 1.27 nat mutex_exit(&sc->sc_lock);
418 1.1 jmcneill }
419 1.1 jmcneill
420 1.1 jmcneill return err;
421 1.1 jmcneill }
422 1.1 jmcneill
423 1.1 jmcneill static int
424 1.26 nat pad_audio_open(void *opaque, int flags)
425 1.26 nat {
426 1.26 nat pad_softc_t *sc;
427 1.26 nat sc = opaque;
428 1.26 nat
429 1.26 nat if (sc->sc_open == 0)
430 1.26 nat return EIO;
431 1.26 nat
432 1.26 nat getmicrotime(&sc->sc_last);
433 1.34 nat sc->sc_bytes_count = 0;
434 1.29 nat sc->sc_remainder = 0;
435 1.29 nat
436 1.26 nat return 0;
437 1.26 nat }
438 1.26 nat
439 1.26 nat static int
440 1.1 jmcneill pad_query_encoding(void *opaque, struct audio_encoding *ae)
441 1.1 jmcneill {
442 1.1 jmcneill pad_softc_t *sc;
443 1.1 jmcneill
444 1.1 jmcneill sc = (pad_softc_t *)opaque;
445 1.1 jmcneill
446 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
447 1.17 jmcneill
448 1.1 jmcneill return auconv_query_encoding(sc->sc_encodings, ae);
449 1.1 jmcneill }
450 1.1 jmcneill
451 1.1 jmcneill static int
452 1.1 jmcneill pad_set_params(void *opaque, int setmode, int usemode,
453 1.1 jmcneill audio_params_t *play, audio_params_t *rec,
454 1.1 jmcneill stream_filter_list_t *pfil, stream_filter_list_t *rfil)
455 1.1 jmcneill {
456 1.20 christos pad_softc_t *sc __diagused;
457 1.1 jmcneill
458 1.1 jmcneill sc = (pad_softc_t *)opaque;
459 1.1 jmcneill
460 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
461 1.17 jmcneill
462 1.1 jmcneill if (auconv_set_converter(pad_formats, PAD_NFORMATS, AUMODE_PLAY,
463 1.1 jmcneill play, true, pfil) < 0)
464 1.1 jmcneill return EINVAL;
465 1.1 jmcneill if (auconv_set_converter(pad_formats, PAD_NFORMATS, AUMODE_RECORD,
466 1.1 jmcneill rec, true, rfil) < 0)
467 1.1 jmcneill return EINVAL;
468 1.1 jmcneill
469 1.2 jmcneill if (pfil->req_size > 0)
470 1.2 jmcneill play = &pfil->filters[0].param;
471 1.2 jmcneill switch (play->encoding) {
472 1.2 jmcneill case AUDIO_ENCODING_SLINEAR_LE:
473 1.2 jmcneill if (play->precision == 16 && play->validbits == 16)
474 1.22 jmcneill pfil->prepend(pfil, pad_swvol_filter_le, play);
475 1.2 jmcneill break;
476 1.2 jmcneill case AUDIO_ENCODING_SLINEAR_BE:
477 1.2 jmcneill if (play->precision == 16 && play->validbits == 16)
478 1.22 jmcneill pfil->prepend(pfil, pad_swvol_filter_be, play);
479 1.2 jmcneill break;
480 1.2 jmcneill default:
481 1.2 jmcneill break;
482 1.2 jmcneill }
483 1.2 jmcneill
484 1.1 jmcneill return 0;
485 1.1 jmcneill }
486 1.1 jmcneill
487 1.1 jmcneill static int
488 1.1 jmcneill pad_start_output(void *opaque, void *block, int blksize,
489 1.1 jmcneill void (*intr)(void *), void *intrarg)
490 1.1 jmcneill {
491 1.1 jmcneill pad_softc_t *sc;
492 1.1 jmcneill int err;
493 1.1 jmcneill
494 1.1 jmcneill sc = (pad_softc_t *)opaque;
495 1.1 jmcneill
496 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
497 1.26 nat if (!sc->sc_open)
498 1.26 nat return EIO;
499 1.1 jmcneill
500 1.1 jmcneill sc->sc_intr = intr;
501 1.1 jmcneill sc->sc_intrarg = intrarg;
502 1.1 jmcneill sc->sc_blksize = blksize;
503 1.1 jmcneill
504 1.1 jmcneill err = pad_add_block(sc, block, blksize);
505 1.1 jmcneill
506 1.17 jmcneill cv_broadcast(&sc->sc_condvar);
507 1.1 jmcneill
508 1.1 jmcneill return err;
509 1.1 jmcneill }
510 1.1 jmcneill
511 1.1 jmcneill static int
512 1.1 jmcneill pad_start_input(void *opaque, void *block, int blksize,
513 1.1 jmcneill void (*intr)(void *), void *intrarg)
514 1.1 jmcneill {
515 1.20 christos pad_softc_t *sc __diagused;
516 1.17 jmcneill
517 1.17 jmcneill sc = (pad_softc_t *)opaque;
518 1.17 jmcneill
519 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
520 1.17 jmcneill
521 1.17 jmcneill return EOPNOTSUPP;
522 1.1 jmcneill }
523 1.1 jmcneill
524 1.1 jmcneill static int
525 1.1 jmcneill pad_halt_output(void *opaque)
526 1.1 jmcneill {
527 1.1 jmcneill pad_softc_t *sc;
528 1.1 jmcneill
529 1.1 jmcneill sc = (pad_softc_t *)opaque;
530 1.17 jmcneill
531 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
532 1.17 jmcneill
533 1.1 jmcneill sc->sc_intr = NULL;
534 1.1 jmcneill sc->sc_intrarg = NULL;
535 1.1 jmcneill sc->sc_buflen = 0;
536 1.1 jmcneill sc->sc_rpos = sc->sc_wpos = 0;
537 1.1 jmcneill
538 1.1 jmcneill return 0;
539 1.1 jmcneill }
540 1.1 jmcneill
541 1.1 jmcneill static int
542 1.1 jmcneill pad_halt_input(void *opaque)
543 1.1 jmcneill {
544 1.20 christos pad_softc_t *sc __diagused;
545 1.17 jmcneill
546 1.17 jmcneill sc = (pad_softc_t *)opaque;
547 1.17 jmcneill
548 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
549 1.17 jmcneill
550 1.1 jmcneill return 0;
551 1.1 jmcneill }
552 1.1 jmcneill
553 1.1 jmcneill static int
554 1.1 jmcneill pad_getdev(void *opaque, struct audio_device *ret)
555 1.1 jmcneill {
556 1.16 jmcneill strlcpy(ret->name, "Virtual Audio", sizeof(ret->name));
557 1.16 jmcneill strlcpy(ret->version, osrelease, sizeof(ret->version));
558 1.16 jmcneill strlcpy(ret->config, "pad", sizeof(ret->config));
559 1.1 jmcneill
560 1.1 jmcneill return 0;
561 1.1 jmcneill }
562 1.1 jmcneill
563 1.1 jmcneill static int
564 1.1 jmcneill pad_set_port(void *opaque, mixer_ctrl_t *mc)
565 1.1 jmcneill {
566 1.2 jmcneill pad_softc_t *sc;
567 1.2 jmcneill
568 1.2 jmcneill sc = (pad_softc_t *)opaque;
569 1.2 jmcneill
570 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
571 1.17 jmcneill
572 1.2 jmcneill switch (mc->dev) {
573 1.2 jmcneill case PAD_OUTPUT_MASTER_VOLUME:
574 1.2 jmcneill case PAD_INPUT_DAC_VOLUME:
575 1.54 nakayama if (mc->un.value.num_channels != 1)
576 1.54 nakayama return EINVAL;
577 1.2 jmcneill sc->sc_swvol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO];
578 1.2 jmcneill return 0;
579 1.2 jmcneill }
580 1.2 jmcneill
581 1.1 jmcneill return ENXIO;
582 1.1 jmcneill }
583 1.1 jmcneill
584 1.1 jmcneill static int
585 1.1 jmcneill pad_get_port(void *opaque, mixer_ctrl_t *mc)
586 1.1 jmcneill {
587 1.2 jmcneill pad_softc_t *sc;
588 1.2 jmcneill
589 1.2 jmcneill sc = (pad_softc_t *)opaque;
590 1.2 jmcneill
591 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
592 1.17 jmcneill
593 1.2 jmcneill switch (mc->dev) {
594 1.2 jmcneill case PAD_OUTPUT_MASTER_VOLUME:
595 1.2 jmcneill case PAD_INPUT_DAC_VOLUME:
596 1.54 nakayama if (mc->un.value.num_channels != 1)
597 1.54 nakayama return EINVAL;
598 1.2 jmcneill mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_swvol;
599 1.2 jmcneill return 0;
600 1.2 jmcneill }
601 1.2 jmcneill
602 1.1 jmcneill return ENXIO;
603 1.1 jmcneill }
604 1.1 jmcneill
605 1.1 jmcneill static int
606 1.1 jmcneill pad_query_devinfo(void *opaque, mixer_devinfo_t *di)
607 1.1 jmcneill {
608 1.20 christos pad_softc_t *sc __diagused;
609 1.2 jmcneill
610 1.2 jmcneill sc = (pad_softc_t *)opaque;
611 1.2 jmcneill
612 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
613 1.17 jmcneill
614 1.2 jmcneill switch (di->index) {
615 1.2 jmcneill case PAD_OUTPUT_CLASS:
616 1.2 jmcneill di->mixer_class = PAD_OUTPUT_CLASS;
617 1.2 jmcneill strcpy(di->label.name, AudioCoutputs);
618 1.2 jmcneill di->type = AUDIO_MIXER_CLASS;
619 1.2 jmcneill di->next = di->prev = AUDIO_MIXER_LAST;
620 1.2 jmcneill return 0;
621 1.2 jmcneill case PAD_INPUT_CLASS:
622 1.2 jmcneill di->mixer_class = PAD_INPUT_CLASS;
623 1.2 jmcneill strcpy(di->label.name, AudioCinputs);
624 1.2 jmcneill di->type = AUDIO_MIXER_CLASS;
625 1.2 jmcneill di->next = di->prev = AUDIO_MIXER_LAST;
626 1.2 jmcneill return 0;
627 1.2 jmcneill case PAD_OUTPUT_MASTER_VOLUME:
628 1.2 jmcneill di->mixer_class = PAD_OUTPUT_CLASS;
629 1.2 jmcneill strcpy(di->label.name, AudioNmaster);
630 1.2 jmcneill di->type = AUDIO_MIXER_VALUE;
631 1.2 jmcneill di->next = di->prev = AUDIO_MIXER_LAST;
632 1.2 jmcneill di->un.v.num_channels = 1;
633 1.2 jmcneill strcpy(di->un.v.units.name, AudioNvolume);
634 1.2 jmcneill return 0;
635 1.2 jmcneill case PAD_INPUT_DAC_VOLUME:
636 1.2 jmcneill di->mixer_class = PAD_INPUT_CLASS;
637 1.2 jmcneill strcpy(di->label.name, AudioNdac);
638 1.2 jmcneill di->type = AUDIO_MIXER_VALUE;
639 1.2 jmcneill di->next = di->prev = AUDIO_MIXER_LAST;
640 1.2 jmcneill di->un.v.num_channels = 1;
641 1.2 jmcneill strcpy(di->un.v.units.name, AudioNvolume);
642 1.2 jmcneill return 0;
643 1.2 jmcneill }
644 1.2 jmcneill
645 1.1 jmcneill return ENXIO;
646 1.1 jmcneill }
647 1.1 jmcneill
648 1.1 jmcneill static int
649 1.1 jmcneill pad_get_props(void *opaque)
650 1.1 jmcneill {
651 1.20 christos pad_softc_t *sc __diagused;
652 1.17 jmcneill
653 1.17 jmcneill sc = (pad_softc_t *)opaque;
654 1.17 jmcneill
655 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
656 1.17 jmcneill
657 1.1 jmcneill return 0;
658 1.1 jmcneill }
659 1.1 jmcneill
660 1.1 jmcneill static int
661 1.1 jmcneill pad_round_blocksize(void *opaque, int blksize, int mode,
662 1.1 jmcneill const audio_params_t *p)
663 1.1 jmcneill {
664 1.20 christos pad_softc_t *sc __diagused;
665 1.17 jmcneill
666 1.17 jmcneill sc = (pad_softc_t *)opaque;
667 1.17 jmcneill KASSERT(mutex_owned(&sc->sc_lock));
668 1.17 jmcneill
669 1.1 jmcneill return PAD_BLKSIZE;
670 1.1 jmcneill }
671 1.13 ahoka
672 1.17 jmcneill static void
673 1.17 jmcneill pad_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread)
674 1.17 jmcneill {
675 1.17 jmcneill pad_softc_t *sc;
676 1.17 jmcneill
677 1.17 jmcneill sc = (pad_softc_t *)opaque;
678 1.17 jmcneill
679 1.17 jmcneill *intr = &sc->sc_intr_lock;
680 1.17 jmcneill *thread = &sc->sc_lock;
681 1.17 jmcneill }
682 1.17 jmcneill
683 1.22 jmcneill static stream_filter_t *
684 1.22 jmcneill pad_swvol_filter_le(struct audio_softc *asc,
685 1.22 jmcneill const audio_params_t *from, const audio_params_t *to)
686 1.22 jmcneill {
687 1.22 jmcneill auvolconv_filter_t *this;
688 1.22 jmcneill device_t dev = audio_get_device(asc);
689 1.22 jmcneill struct pad_softc *sc = device_private(dev);
690 1.22 jmcneill
691 1.22 jmcneill this = kmem_alloc(sizeof(auvolconv_filter_t), KM_SLEEP);
692 1.22 jmcneill this->base.base.fetch_to = auvolconv_slinear16_le_fetch_to;
693 1.22 jmcneill this->base.dtor = pad_swvol_dtor;
694 1.22 jmcneill this->base.set_fetcher = stream_filter_set_fetcher;
695 1.22 jmcneill this->base.set_inputbuffer = stream_filter_set_inputbuffer;
696 1.22 jmcneill this->vol = &sc->sc_swvol;
697 1.22 jmcneill
698 1.22 jmcneill return (stream_filter_t *)this;
699 1.22 jmcneill }
700 1.22 jmcneill
701 1.22 jmcneill static stream_filter_t *
702 1.22 jmcneill pad_swvol_filter_be(struct audio_softc *asc,
703 1.22 jmcneill const audio_params_t *from, const audio_params_t *to)
704 1.22 jmcneill {
705 1.22 jmcneill auvolconv_filter_t *this;
706 1.22 jmcneill device_t dev = audio_get_device(asc);
707 1.22 jmcneill struct pad_softc *sc = device_private(dev);
708 1.22 jmcneill
709 1.22 jmcneill this = kmem_alloc(sizeof(auvolconv_filter_t), KM_SLEEP);
710 1.22 jmcneill this->base.base.fetch_to = auvolconv_slinear16_be_fetch_to;
711 1.22 jmcneill this->base.dtor = pad_swvol_dtor;
712 1.22 jmcneill this->base.set_fetcher = stream_filter_set_fetcher;
713 1.22 jmcneill this->base.set_inputbuffer = stream_filter_set_inputbuffer;
714 1.22 jmcneill this->vol = &sc->sc_swvol;
715 1.22 jmcneill
716 1.22 jmcneill return (stream_filter_t *)this;
717 1.22 jmcneill }
718 1.22 jmcneill
719 1.22 jmcneill static void
720 1.22 jmcneill pad_swvol_dtor(stream_filter_t *this)
721 1.22 jmcneill {
722 1.22 jmcneill if (this)
723 1.22 jmcneill kmem_free(this, sizeof(auvolconv_filter_t));
724 1.22 jmcneill }
725 1.22 jmcneill
726 1.44 pgoyette MODULE(MODULE_CLASS_DRIVER, pad, "audio");
727 1.44 pgoyette
728 1.13 ahoka #ifdef _MODULE
729 1.13 ahoka
730 1.54 nakayama static const struct cfiattrdata audiobuscf_iattrdata = {
731 1.54 nakayama "audiobus", 0, { { NULL, NULL, 0 }, }
732 1.54 nakayama };
733 1.54 nakayama static const struct cfiattrdata * const pad_attrs[] = {
734 1.54 nakayama &audiobuscf_iattrdata, NULL
735 1.54 nakayama };
736 1.13 ahoka
737 1.54 nakayama CFDRIVER_DECL(pad, DV_DULL, pad_attrs);
738 1.54 nakayama extern struct cfattach pad_ca;
739 1.54 nakayama static int padloc[] = { -1, -1 };
740 1.54 nakayama
741 1.54 nakayama static struct cfdata pad_cfdata[] = {
742 1.54 nakayama {
743 1.54 nakayama .cf_name = "pad",
744 1.54 nakayama .cf_atname = "pad",
745 1.54 nakayama .cf_unit = 0,
746 1.54 nakayama .cf_fstate = FSTATE_STAR,
747 1.54 nakayama .cf_loc = padloc,
748 1.54 nakayama .cf_flags = 0,
749 1.54 nakayama .cf_pspec = NULL,
750 1.54 nakayama },
751 1.54 nakayama { NULL, NULL, 0, 0, NULL, 0, NULL }
752 1.45 pgoyette };
753 1.47 pgoyette #endif
754 1.45 pgoyette
755 1.13 ahoka static int
756 1.13 ahoka pad_modcmd(modcmd_t cmd, void *arg)
757 1.13 ahoka {
758 1.54 nakayama #ifdef _MODULE
759 1.54 nakayama devmajor_t cmajor = NODEVMAJOR, bmajor = NODEVMAJOR;
760 1.54 nakayama #endif
761 1.44 pgoyette int error = 0;
762 1.13 ahoka
763 1.13 ahoka switch (cmd) {
764 1.13 ahoka case MODULE_CMD_INIT:
765 1.44 pgoyette #ifdef _MODULE
766 1.54 nakayama error = config_cfdriver_attach(&pad_cd);
767 1.54 nakayama if (error) {
768 1.44 pgoyette break;
769 1.54 nakayama }
770 1.54 nakayama
771 1.54 nakayama error = config_cfattach_attach(pad_cd.cd_name, &pad_ca);
772 1.54 nakayama if (error) {
773 1.54 nakayama config_cfdriver_detach(&pad_cd);
774 1.54 nakayama aprint_error("%s: unable to register cfattach\n",
775 1.54 nakayama pad_cd.cd_name);
776 1.54 nakayama
777 1.54 nakayama break;
778 1.54 nakayama }
779 1.54 nakayama
780 1.54 nakayama error = config_cfdata_attach(pad_cfdata, 1);
781 1.54 nakayama if (error) {
782 1.54 nakayama config_cfattach_detach(pad_cd.cd_name, &pad_ca);
783 1.54 nakayama config_cfdriver_detach(&pad_cd);
784 1.54 nakayama aprint_error("%s: unable to register cfdata\n",
785 1.54 nakayama pad_cd.cd_name);
786 1.54 nakayama
787 1.54 nakayama break;
788 1.54 nakayama }
789 1.13 ahoka
790 1.25 msaitoh error = devsw_attach(pad_cd.cd_name, NULL, &bmajor,
791 1.54 nakayama &pad_cdevsw, &cmajor);
792 1.13 ahoka if (error) {
793 1.54 nakayama config_cfdata_detach(pad_cfdata);
794 1.54 nakayama config_cfattach_detach(pad_cd.cd_name, &pad_ca);
795 1.54 nakayama config_cfdriver_detach(&pad_cd);
796 1.54 nakayama aprint_error("%s: unable to register devsw\n",
797 1.54 nakayama pad_cd.cd_name);
798 1.54 nakayama
799 1.44 pgoyette break;
800 1.13 ahoka }
801 1.13 ahoka
802 1.54 nakayama (void)config_attach_pseudo(pad_cfdata);
803 1.44 pgoyette #endif
804 1.54 nakayama
805 1.45 pgoyette break;
806 1.13 ahoka case MODULE_CMD_FINI:
807 1.44 pgoyette #ifdef _MODULE
808 1.54 nakayama error = config_cfdata_detach(pad_cfdata);
809 1.13 ahoka if (error) {
810 1.44 pgoyette break;
811 1.13 ahoka }
812 1.54 nakayama
813 1.54 nakayama config_cfattach_detach(pad_cd.cd_name, &pad_ca);
814 1.54 nakayama config_cfdriver_detach(&pad_cd);
815 1.54 nakayama devsw_detach(NULL, &pad_cdevsw);
816 1.44 pgoyette #endif
817 1.54 nakayama
818 1.45 pgoyette break;
819 1.13 ahoka default:
820 1.44 pgoyette error = ENOTTY;
821 1.13 ahoka }
822 1.44 pgoyette
823 1.44 pgoyette return error;
824 1.13 ahoka }
825