pad.c revision 1.2.4.4
1 1.2.4.4 jmcneill /* $NetBSD: pad.c,v 1.2.4.4 2007/12/08 16:21:21 jmcneill Exp $ */ 2 1.2.4.2 joerg 3 1.2.4.2 joerg /*- 4 1.2.4.2 joerg * Copyright (c) 2007 Jared D. McNeill <jmcneill (at) invisible.ca> 5 1.2.4.2 joerg * All rights reserved. 6 1.2.4.2 joerg * 7 1.2.4.2 joerg * Redistribution and use in source and binary forms, with or without 8 1.2.4.2 joerg * modification, are permitted provided that the following conditions 9 1.2.4.2 joerg * are met: 10 1.2.4.2 joerg * 1. Redistributions of source code must retain the above copyright 11 1.2.4.2 joerg * notice, this list of conditions and the following disclaimer. 12 1.2.4.2 joerg * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.4.2 joerg * notice, this list of conditions and the following disclaimer in the 14 1.2.4.2 joerg * documentation and/or other materials provided with the distribution. 15 1.2.4.2 joerg * 3. All advertising materials mentioning features or use of this software 16 1.2.4.2 joerg * must display the following acknowledgement: 17 1.2.4.2 joerg * This product includes software developed by Jared D. McNeill. 18 1.2.4.2 joerg * 4. Neither the name of The NetBSD Foundation nor the names of its 19 1.2.4.2 joerg * contributors may be used to endorse or promote products derived 20 1.2.4.2 joerg * from this software without specific prior written permission. 21 1.2.4.2 joerg * 22 1.2.4.2 joerg * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 1.2.4.2 joerg * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 1.2.4.2 joerg * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 1.2.4.2 joerg * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 1.2.4.2 joerg * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 1.2.4.2 joerg * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 1.2.4.2 joerg * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 1.2.4.2 joerg * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 1.2.4.2 joerg * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 1.2.4.2 joerg * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 1.2.4.2 joerg * POSSIBILITY OF SUCH DAMAGE. 33 1.2.4.2 joerg */ 34 1.2.4.2 joerg 35 1.2.4.2 joerg #include <sys/cdefs.h> 36 1.2.4.4 jmcneill __KERNEL_RCSID(0, "$NetBSD: pad.c,v 1.2.4.4 2007/12/08 16:21:21 jmcneill Exp $"); 37 1.2.4.2 joerg 38 1.2.4.2 joerg #include <sys/types.h> 39 1.2.4.2 joerg #include <sys/param.h> 40 1.2.4.2 joerg #include <sys/conf.h> 41 1.2.4.2 joerg #include <sys/buf.h> 42 1.2.4.2 joerg #include <sys/kmem.h> 43 1.2.4.2 joerg #include <sys/kernel.h> 44 1.2.4.2 joerg #include <sys/device.h> 45 1.2.4.2 joerg #include <sys/proc.h> 46 1.2.4.2 joerg #include <sys/condvar.h> 47 1.2.4.2 joerg #include <sys/select.h> 48 1.2.4.2 joerg #include <sys/audioio.h> 49 1.2.4.2 joerg 50 1.2.4.2 joerg #include <dev/audio_if.h> 51 1.2.4.2 joerg #include <dev/audiovar.h> 52 1.2.4.2 joerg #include <dev/auconv.h> 53 1.2.4.2 joerg 54 1.2.4.2 joerg #include <dev/pad/padvar.h> 55 1.2.4.2 joerg #include <dev/pad/padvol.h> 56 1.2.4.2 joerg 57 1.2.4.2 joerg #define PADUNIT(x) minor(x) 58 1.2.4.2 joerg 59 1.2.4.2 joerg extern struct cfdriver pad_cd; 60 1.2.4.2 joerg 61 1.2.4.2 joerg static struct audio_device pad_device = { 62 1.2.4.2 joerg "Pseudo Audio", 63 1.2.4.2 joerg "1.0", 64 1.2.4.2 joerg "pad", 65 1.2.4.2 joerg }; 66 1.2.4.2 joerg 67 1.2.4.2 joerg typedef struct pad_block { 68 1.2.4.2 joerg uint8_t *pb_ptr; 69 1.2.4.2 joerg int pb_len; 70 1.2.4.2 joerg } pad_block_t; 71 1.2.4.2 joerg 72 1.2.4.2 joerg enum { 73 1.2.4.2 joerg PAD_OUTPUT_CLASS, 74 1.2.4.2 joerg PAD_INPUT_CLASS, 75 1.2.4.2 joerg PAD_OUTPUT_MASTER_VOLUME, 76 1.2.4.2 joerg PAD_INPUT_DAC_VOLUME, 77 1.2.4.2 joerg PAD_ENUM_LAST, 78 1.2.4.2 joerg }; 79 1.2.4.2 joerg 80 1.2.4.2 joerg static int pad_match(struct device *, struct cfdata *, void *); 81 1.2.4.2 joerg static void pad_attach(struct device *, struct device *, void *); 82 1.2.4.2 joerg 83 1.2.4.2 joerg static int pad_query_encoding(void *, struct audio_encoding *); 84 1.2.4.2 joerg static int pad_set_params(void *, int, int, 85 1.2.4.2 joerg audio_params_t *, audio_params_t *, 86 1.2.4.2 joerg stream_filter_list_t *, stream_filter_list_t *); 87 1.2.4.2 joerg static int pad_start_output(void *, void *, int, 88 1.2.4.2 joerg void (*)(void *), void *); 89 1.2.4.2 joerg static int pad_start_input(void *, void *, int, 90 1.2.4.2 joerg void (*)(void *), void *); 91 1.2.4.2 joerg static int pad_halt_output(void *); 92 1.2.4.2 joerg static int pad_halt_input(void *); 93 1.2.4.2 joerg static int pad_getdev(void *, struct audio_device *); 94 1.2.4.2 joerg static int pad_set_port(void *, mixer_ctrl_t *); 95 1.2.4.2 joerg static int pad_get_port(void *, mixer_ctrl_t *); 96 1.2.4.2 joerg static int pad_query_devinfo(void *, mixer_devinfo_t *); 97 1.2.4.2 joerg static int pad_get_props(void *); 98 1.2.4.2 joerg static int pad_round_blocksize(void *, int, int, const audio_params_t *); 99 1.2.4.2 joerg 100 1.2.4.2 joerg static const struct audio_hw_if pad_hw_if = { 101 1.2.4.2 joerg .query_encoding = pad_query_encoding, 102 1.2.4.2 joerg .set_params = pad_set_params, 103 1.2.4.2 joerg .start_output = pad_start_output, 104 1.2.4.2 joerg .start_input = pad_start_input, 105 1.2.4.2 joerg .halt_output = pad_halt_output, 106 1.2.4.2 joerg .halt_input = pad_halt_input, 107 1.2.4.2 joerg .getdev = pad_getdev, 108 1.2.4.2 joerg .set_port = pad_set_port, 109 1.2.4.2 joerg .get_port = pad_get_port, 110 1.2.4.2 joerg .query_devinfo = pad_query_devinfo, 111 1.2.4.2 joerg .get_props = pad_get_props, 112 1.2.4.2 joerg .round_blocksize = pad_round_blocksize, 113 1.2.4.2 joerg }; 114 1.2.4.2 joerg 115 1.2.4.2 joerg #define PAD_NFORMATS 1 116 1.2.4.2 joerg static const struct audio_format pad_formats[PAD_NFORMATS] = { 117 1.2.4.2 joerg { NULL, AUMODE_PLAY|AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 118 1.2.4.2 joerg 2, AUFMT_STEREO, 1, { 44100 } }, 119 1.2.4.2 joerg }; 120 1.2.4.2 joerg 121 1.2.4.2 joerg extern void padattach(int); 122 1.2.4.2 joerg 123 1.2.4.2 joerg static pad_softc_t * pad_find_softc(dev_t); 124 1.2.4.2 joerg static int pad_add_block(pad_softc_t *, uint8_t *, int); 125 1.2.4.2 joerg static int pad_get_block(pad_softc_t *, pad_block_t *, int); 126 1.2.4.2 joerg 127 1.2.4.2 joerg dev_type_open(pad_open); 128 1.2.4.2 joerg dev_type_close(pad_close); 129 1.2.4.2 joerg dev_type_read(pad_read); 130 1.2.4.2 joerg 131 1.2.4.2 joerg const struct cdevsw pad_cdevsw = { 132 1.2.4.2 joerg .d_open = pad_open, 133 1.2.4.2 joerg .d_close = pad_close, 134 1.2.4.2 joerg .d_read = pad_read, 135 1.2.4.2 joerg .d_write = nowrite, 136 1.2.4.2 joerg .d_ioctl = noioctl, 137 1.2.4.2 joerg .d_stop = nostop, 138 1.2.4.2 joerg .d_tty = notty, 139 1.2.4.2 joerg .d_poll = nopoll, 140 1.2.4.2 joerg .d_mmap = nommap, 141 1.2.4.2 joerg .d_kqfilter = nokqfilter, 142 1.2.4.2 joerg .d_flag = D_OTHER, 143 1.2.4.2 joerg }; 144 1.2.4.2 joerg 145 1.2.4.2 joerg CFATTACH_DECL(pad, sizeof(pad_softc_t), pad_match, pad_attach, NULL, NULL); 146 1.2.4.2 joerg 147 1.2.4.2 joerg void 148 1.2.4.2 joerg padattach(int n) 149 1.2.4.2 joerg { 150 1.2.4.2 joerg int i, err; 151 1.2.4.2 joerg struct cfdata *cf; 152 1.2.4.2 joerg 153 1.2.4.2 joerg #ifdef DEBUG 154 1.2.4.2 joerg printf("pad: requested %d units\n", n); 155 1.2.4.2 joerg #endif 156 1.2.4.2 joerg 157 1.2.4.2 joerg err = config_cfattach_attach(pad_cd.cd_name, &pad_ca); 158 1.2.4.2 joerg if (err) { 159 1.2.4.2 joerg aprint_error("%s: couldn't register cfattach: %d\n", 160 1.2.4.2 joerg pad_cd.cd_name, err); 161 1.2.4.2 joerg config_cfdriver_detach(&pad_cd); 162 1.2.4.2 joerg return; 163 1.2.4.2 joerg } 164 1.2.4.2 joerg 165 1.2.4.2 joerg for (i = 0; i < n; i++) { 166 1.2.4.2 joerg cf = kmem_alloc(sizeof(struct cfdata), KM_NOSLEEP); 167 1.2.4.2 joerg if (cf == NULL) { 168 1.2.4.2 joerg aprint_error("%s: couldn't allocate cfdata\n", 169 1.2.4.2 joerg pad_cd.cd_name); 170 1.2.4.2 joerg continue; 171 1.2.4.2 joerg } 172 1.2.4.2 joerg cf->cf_name = pad_cd.cd_name; 173 1.2.4.2 joerg cf->cf_atname = pad_cd.cd_name; 174 1.2.4.2 joerg cf->cf_unit = i; 175 1.2.4.2 joerg cf->cf_fstate = FSTATE_STAR; 176 1.2.4.2 joerg 177 1.2.4.2 joerg (void)config_attach_pseudo(cf); 178 1.2.4.2 joerg } 179 1.2.4.2 joerg 180 1.2.4.2 joerg return; 181 1.2.4.2 joerg } 182 1.2.4.2 joerg 183 1.2.4.2 joerg static pad_softc_t * 184 1.2.4.2 joerg pad_find_softc(dev_t dev) 185 1.2.4.2 joerg { 186 1.2.4.2 joerg int unit; 187 1.2.4.2 joerg 188 1.2.4.2 joerg unit = PADUNIT(dev); 189 1.2.4.2 joerg if (unit >= pad_cd.cd_ndevs) 190 1.2.4.2 joerg return NULL; 191 1.2.4.2 joerg 192 1.2.4.2 joerg return pad_cd.cd_devs[unit]; 193 1.2.4.2 joerg } 194 1.2.4.2 joerg 195 1.2.4.2 joerg static int 196 1.2.4.2 joerg pad_add_block(pad_softc_t *sc, uint8_t *blk, int blksize) 197 1.2.4.2 joerg { 198 1.2.4.2 joerg int l; 199 1.2.4.2 joerg 200 1.2.4.2 joerg if (sc->sc_buflen + blksize > PAD_BUFSIZE) 201 1.2.4.2 joerg return ENOBUFS; 202 1.2.4.2 joerg 203 1.2.4.2 joerg if (sc->sc_wpos + blksize <= PAD_BUFSIZE) 204 1.2.4.2 joerg memcpy(sc->sc_audiobuf + sc->sc_wpos, blk, blksize); 205 1.2.4.2 joerg else { 206 1.2.4.2 joerg l = PAD_BUFSIZE - sc->sc_wpos; 207 1.2.4.2 joerg memcpy(sc->sc_audiobuf + sc->sc_wpos, blk, l); 208 1.2.4.2 joerg memcpy(sc->sc_audiobuf, blk + l, blksize - l); 209 1.2.4.2 joerg } 210 1.2.4.2 joerg 211 1.2.4.2 joerg sc->sc_wpos += blksize; 212 1.2.4.2 joerg if (sc->sc_wpos > PAD_BUFSIZE) 213 1.2.4.2 joerg sc->sc_wpos -= PAD_BUFSIZE; 214 1.2.4.2 joerg 215 1.2.4.2 joerg sc->sc_buflen += blksize; 216 1.2.4.2 joerg 217 1.2.4.2 joerg return 0; 218 1.2.4.2 joerg } 219 1.2.4.2 joerg 220 1.2.4.2 joerg static int 221 1.2.4.2 joerg pad_get_block(pad_softc_t *sc, pad_block_t *pb, int blksize) 222 1.2.4.2 joerg { 223 1.2.4.2 joerg int l; 224 1.2.4.2 joerg 225 1.2.4.2 joerg KASSERT(pb != NULL); 226 1.2.4.2 joerg 227 1.2.4.2 joerg if (sc->sc_buflen < blksize) 228 1.2.4.2 joerg return ERESTART; 229 1.2.4.2 joerg 230 1.2.4.2 joerg pb->pb_ptr = (sc->sc_audiobuf + sc->sc_rpos); 231 1.2.4.2 joerg if (sc->sc_rpos + blksize < PAD_BUFSIZE) { 232 1.2.4.2 joerg pb->pb_len = blksize; 233 1.2.4.2 joerg sc->sc_rpos += blksize; 234 1.2.4.2 joerg } else { 235 1.2.4.2 joerg l = PAD_BUFSIZE - sc->sc_rpos; 236 1.2.4.2 joerg pb->pb_len = l; 237 1.2.4.2 joerg sc->sc_rpos = 0; 238 1.2.4.2 joerg } 239 1.2.4.2 joerg sc->sc_buflen -= pb->pb_len; 240 1.2.4.2 joerg 241 1.2.4.2 joerg return 0; 242 1.2.4.2 joerg } 243 1.2.4.2 joerg 244 1.2.4.2 joerg static int 245 1.2.4.2 joerg pad_match(struct device *parent, struct cfdata *data, void *opaque) 246 1.2.4.2 joerg { 247 1.2.4.2 joerg return 1; 248 1.2.4.2 joerg } 249 1.2.4.2 joerg 250 1.2.4.2 joerg static void 251 1.2.4.2 joerg pad_attach(struct device *parent, struct device *self, void *opaque) 252 1.2.4.2 joerg { 253 1.2.4.2 joerg pad_softc_t *sc; 254 1.2.4.2 joerg 255 1.2.4.2 joerg sc = (pad_softc_t *)self; 256 1.2.4.2 joerg 257 1.2.4.2 joerg aprint_normal_dev(self, "outputs: 44100Hz, 16-bit, stereo\n"); 258 1.2.4.2 joerg 259 1.2.4.2 joerg sc->sc_open = 0; 260 1.2.4.2 joerg if (auconv_create_encodings(pad_formats, PAD_NFORMATS, 261 1.2.4.2 joerg &sc->sc_encodings) != 0) { 262 1.2.4.2 joerg aprint_error_dev(self, "couldn't create encodings\n"); 263 1.2.4.2 joerg return; 264 1.2.4.2 joerg } 265 1.2.4.2 joerg 266 1.2.4.2 joerg cv_init(&sc->sc_condvar, device_xname(self)); 267 1.2.4.2 joerg mutex_init(&sc->sc_mutex, MUTEX_DRIVER, IPL_AUDIO); 268 1.2.4.2 joerg 269 1.2.4.2 joerg sc->sc_swvol = 255; 270 1.2.4.2 joerg sc->sc_buflen = 0; 271 1.2.4.2 joerg sc->sc_rpos = sc->sc_wpos = 0; 272 1.2.4.2 joerg sc->sc_audiodev = (void *)audio_attach_mi(&pad_hw_if, sc, &sc->sc_dev); 273 1.2.4.2 joerg 274 1.2.4.4 jmcneill if (!pmf_device_register(self, NULL, NULL)) 275 1.2.4.3 jmcneill aprint_error_dev(self, "couldn't establish power handler\n"); 276 1.2.4.3 jmcneill 277 1.2.4.2 joerg return; 278 1.2.4.2 joerg } 279 1.2.4.2 joerg 280 1.2.4.2 joerg int 281 1.2.4.2 joerg pad_open(dev_t dev, int flags, int fmt, struct lwp *l) 282 1.2.4.2 joerg { 283 1.2.4.2 joerg pad_softc_t *sc; 284 1.2.4.2 joerg 285 1.2.4.2 joerg sc = pad_find_softc(dev); 286 1.2.4.2 joerg if (sc == NULL) 287 1.2.4.2 joerg return ENODEV; 288 1.2.4.2 joerg 289 1.2.4.2 joerg if (sc->sc_open++) { 290 1.2.4.2 joerg sc->sc_open--; 291 1.2.4.2 joerg return EBUSY; 292 1.2.4.2 joerg } 293 1.2.4.2 joerg 294 1.2.4.2 joerg return 0; 295 1.2.4.2 joerg } 296 1.2.4.2 joerg 297 1.2.4.2 joerg int 298 1.2.4.2 joerg pad_close(dev_t dev, int flags, int fmt, struct lwp *l) 299 1.2.4.2 joerg { 300 1.2.4.2 joerg pad_softc_t *sc; 301 1.2.4.2 joerg 302 1.2.4.2 joerg sc = pad_find_softc(dev); 303 1.2.4.2 joerg if (sc == NULL) 304 1.2.4.2 joerg return ENODEV; 305 1.2.4.2 joerg 306 1.2.4.2 joerg KASSERT(sc->sc_open > 0); 307 1.2.4.2 joerg sc->sc_open--; 308 1.2.4.2 joerg 309 1.2.4.2 joerg return 0; 310 1.2.4.2 joerg } 311 1.2.4.2 joerg 312 1.2.4.2 joerg int 313 1.2.4.2 joerg pad_read(dev_t dev, struct uio *uio, int flags) 314 1.2.4.2 joerg { 315 1.2.4.2 joerg pad_softc_t *sc; 316 1.2.4.2 joerg pad_block_t pb; 317 1.2.4.2 joerg void (*intr)(void *); 318 1.2.4.2 joerg void *intrarg; 319 1.2.4.2 joerg int err; 320 1.2.4.2 joerg 321 1.2.4.2 joerg sc = pad_find_softc(dev); 322 1.2.4.2 joerg if (sc == NULL) 323 1.2.4.2 joerg return ENODEV; 324 1.2.4.2 joerg 325 1.2.4.2 joerg err = 0; 326 1.2.4.2 joerg 327 1.2.4.2 joerg intr = sc->sc_intr; 328 1.2.4.2 joerg intrarg = sc->sc_intrarg; 329 1.2.4.2 joerg 330 1.2.4.2 joerg while (uio->uio_resid > 0 && !err) { 331 1.2.4.2 joerg err = pad_get_block(sc, &pb, min(uio->uio_resid, PAD_BLKSIZE)); 332 1.2.4.2 joerg if (!err) 333 1.2.4.2 joerg err = uiomove(pb.pb_ptr, pb.pb_len, uio); 334 1.2.4.2 joerg else { 335 1.2.4.2 joerg if (intr) { 336 1.2.4.2 joerg (*intr)(intrarg); 337 1.2.4.2 joerg intr = sc->sc_intr; 338 1.2.4.2 joerg intrarg = sc->sc_intrarg; 339 1.2.4.2 joerg err = 0; 340 1.2.4.2 joerg continue; 341 1.2.4.2 joerg } 342 1.2.4.2 joerg 343 1.2.4.2 joerg mutex_enter(&sc->sc_mutex); 344 1.2.4.2 joerg err = cv_timedwait_sig(&sc->sc_condvar, &sc->sc_mutex, 345 1.2.4.2 joerg hz/100); 346 1.2.4.2 joerg if (err != 0 && err != EWOULDBLOCK) { 347 1.2.4.2 joerg mutex_exit(&sc->sc_mutex); 348 1.2.4.2 joerg aprint_error_dev(&sc->sc_dev, 349 1.2.4.2 joerg "cv_timedwait_sig returned %d\n", err); 350 1.2.4.2 joerg return EINTR; 351 1.2.4.2 joerg } 352 1.2.4.2 joerg intr = sc->sc_intr; 353 1.2.4.2 joerg intrarg = sc->sc_intrarg; 354 1.2.4.2 joerg mutex_exit(&sc->sc_mutex); 355 1.2.4.2 joerg err = 0; 356 1.2.4.2 joerg } 357 1.2.4.2 joerg } 358 1.2.4.2 joerg 359 1.2.4.2 joerg if (intr) 360 1.2.4.2 joerg (*intr)(intrarg); 361 1.2.4.2 joerg 362 1.2.4.2 joerg return err; 363 1.2.4.2 joerg } 364 1.2.4.2 joerg 365 1.2.4.2 joerg static int 366 1.2.4.2 joerg pad_query_encoding(void *opaque, struct audio_encoding *ae) 367 1.2.4.2 joerg { 368 1.2.4.2 joerg pad_softc_t *sc; 369 1.2.4.2 joerg 370 1.2.4.2 joerg sc = (pad_softc_t *)opaque; 371 1.2.4.2 joerg 372 1.2.4.2 joerg return auconv_query_encoding(sc->sc_encodings, ae); 373 1.2.4.2 joerg } 374 1.2.4.2 joerg 375 1.2.4.2 joerg static int 376 1.2.4.2 joerg pad_set_params(void *opaque, int setmode, int usemode, 377 1.2.4.2 joerg audio_params_t *play, audio_params_t *rec, 378 1.2.4.2 joerg stream_filter_list_t *pfil, stream_filter_list_t *rfil) 379 1.2.4.2 joerg { 380 1.2.4.2 joerg pad_softc_t *sc; 381 1.2.4.2 joerg 382 1.2.4.2 joerg sc = (pad_softc_t *)opaque; 383 1.2.4.2 joerg 384 1.2.4.2 joerg if (auconv_set_converter(pad_formats, PAD_NFORMATS, AUMODE_PLAY, 385 1.2.4.2 joerg play, true, pfil) < 0) 386 1.2.4.2 joerg return EINVAL; 387 1.2.4.2 joerg if (auconv_set_converter(pad_formats, PAD_NFORMATS, AUMODE_RECORD, 388 1.2.4.2 joerg rec, true, rfil) < 0) 389 1.2.4.2 joerg return EINVAL; 390 1.2.4.2 joerg 391 1.2.4.2 joerg if (pfil->req_size > 0) 392 1.2.4.2 joerg play = &pfil->filters[0].param; 393 1.2.4.2 joerg switch (play->encoding) { 394 1.2.4.2 joerg case AUDIO_ENCODING_SLINEAR_LE: 395 1.2.4.2 joerg if (play->precision == 16 && play->validbits == 16) 396 1.2.4.2 joerg pfil->prepend(pfil, pad_vol_slinear16_le, play); 397 1.2.4.2 joerg break; 398 1.2.4.2 joerg case AUDIO_ENCODING_SLINEAR_BE: 399 1.2.4.2 joerg if (play->precision == 16 && play->validbits == 16) 400 1.2.4.2 joerg pfil->prepend(pfil, pad_vol_slinear16_be, play); 401 1.2.4.2 joerg break; 402 1.2.4.2 joerg default: 403 1.2.4.2 joerg break; 404 1.2.4.2 joerg } 405 1.2.4.2 joerg 406 1.2.4.2 joerg return 0; 407 1.2.4.2 joerg } 408 1.2.4.2 joerg 409 1.2.4.2 joerg static int 410 1.2.4.2 joerg pad_start_output(void *opaque, void *block, int blksize, 411 1.2.4.2 joerg void (*intr)(void *), void *intrarg) 412 1.2.4.2 joerg { 413 1.2.4.2 joerg pad_softc_t *sc; 414 1.2.4.2 joerg int err; 415 1.2.4.2 joerg 416 1.2.4.2 joerg sc = (pad_softc_t *)opaque; 417 1.2.4.2 joerg 418 1.2.4.2 joerg mutex_enter(&sc->sc_mutex); 419 1.2.4.2 joerg 420 1.2.4.2 joerg sc->sc_intr = intr; 421 1.2.4.2 joerg sc->sc_intrarg = intrarg; 422 1.2.4.2 joerg sc->sc_blksize = blksize; 423 1.2.4.2 joerg 424 1.2.4.2 joerg err = pad_add_block(sc, block, blksize); 425 1.2.4.2 joerg 426 1.2.4.2 joerg cv_signal(&sc->sc_condvar); 427 1.2.4.2 joerg 428 1.2.4.2 joerg mutex_exit(&sc->sc_mutex); 429 1.2.4.2 joerg 430 1.2.4.2 joerg return err; 431 1.2.4.2 joerg } 432 1.2.4.2 joerg 433 1.2.4.2 joerg static int 434 1.2.4.2 joerg pad_start_input(void *opaque, void *block, int blksize, 435 1.2.4.2 joerg void (*intr)(void *), void *intrarg) 436 1.2.4.2 joerg { 437 1.2.4.2 joerg return EINVAL; 438 1.2.4.2 joerg } 439 1.2.4.2 joerg 440 1.2.4.2 joerg static int 441 1.2.4.2 joerg pad_halt_output(void *opaque) 442 1.2.4.2 joerg { 443 1.2.4.2 joerg pad_softc_t *sc; 444 1.2.4.2 joerg 445 1.2.4.2 joerg sc = (pad_softc_t *)opaque; 446 1.2.4.2 joerg sc->sc_intr = NULL; 447 1.2.4.2 joerg sc->sc_intrarg = NULL; 448 1.2.4.2 joerg sc->sc_buflen = 0; 449 1.2.4.2 joerg sc->sc_rpos = sc->sc_wpos = 0; 450 1.2.4.2 joerg 451 1.2.4.2 joerg return 0; 452 1.2.4.2 joerg } 453 1.2.4.2 joerg 454 1.2.4.2 joerg static int 455 1.2.4.2 joerg pad_halt_input(void *opaque) 456 1.2.4.2 joerg { 457 1.2.4.2 joerg return 0; 458 1.2.4.2 joerg } 459 1.2.4.2 joerg 460 1.2.4.2 joerg static int 461 1.2.4.2 joerg pad_getdev(void *opaque, struct audio_device *ret) 462 1.2.4.2 joerg { 463 1.2.4.2 joerg 464 1.2.4.2 joerg *ret = pad_device; 465 1.2.4.2 joerg 466 1.2.4.2 joerg return 0; 467 1.2.4.2 joerg } 468 1.2.4.2 joerg 469 1.2.4.2 joerg static int 470 1.2.4.2 joerg pad_set_port(void *opaque, mixer_ctrl_t *mc) 471 1.2.4.2 joerg { 472 1.2.4.2 joerg pad_softc_t *sc; 473 1.2.4.2 joerg 474 1.2.4.2 joerg sc = (pad_softc_t *)opaque; 475 1.2.4.2 joerg 476 1.2.4.2 joerg switch (mc->dev) { 477 1.2.4.2 joerg case PAD_OUTPUT_MASTER_VOLUME: 478 1.2.4.2 joerg case PAD_INPUT_DAC_VOLUME: 479 1.2.4.2 joerg sc->sc_swvol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 480 1.2.4.2 joerg return 0; 481 1.2.4.2 joerg } 482 1.2.4.2 joerg 483 1.2.4.2 joerg return ENXIO; 484 1.2.4.2 joerg } 485 1.2.4.2 joerg 486 1.2.4.2 joerg static int 487 1.2.4.2 joerg pad_get_port(void *opaque, mixer_ctrl_t *mc) 488 1.2.4.2 joerg { 489 1.2.4.2 joerg pad_softc_t *sc; 490 1.2.4.2 joerg 491 1.2.4.2 joerg sc = (pad_softc_t *)opaque; 492 1.2.4.2 joerg 493 1.2.4.2 joerg switch (mc->dev) { 494 1.2.4.2 joerg case PAD_OUTPUT_MASTER_VOLUME: 495 1.2.4.2 joerg case PAD_INPUT_DAC_VOLUME: 496 1.2.4.2 joerg mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_swvol; 497 1.2.4.2 joerg return 0; 498 1.2.4.2 joerg } 499 1.2.4.2 joerg 500 1.2.4.2 joerg return ENXIO; 501 1.2.4.2 joerg } 502 1.2.4.2 joerg 503 1.2.4.2 joerg static int 504 1.2.4.2 joerg pad_query_devinfo(void *opaque, mixer_devinfo_t *di) 505 1.2.4.2 joerg { 506 1.2.4.2 joerg pad_softc_t *sc; 507 1.2.4.2 joerg 508 1.2.4.2 joerg sc = (pad_softc_t *)opaque; 509 1.2.4.2 joerg 510 1.2.4.2 joerg switch (di->index) { 511 1.2.4.2 joerg case PAD_OUTPUT_CLASS: 512 1.2.4.2 joerg di->mixer_class = PAD_OUTPUT_CLASS; 513 1.2.4.2 joerg strcpy(di->label.name, AudioCoutputs); 514 1.2.4.2 joerg di->type = AUDIO_MIXER_CLASS; 515 1.2.4.2 joerg di->next = di->prev = AUDIO_MIXER_LAST; 516 1.2.4.2 joerg return 0; 517 1.2.4.2 joerg case PAD_INPUT_CLASS: 518 1.2.4.2 joerg di->mixer_class = PAD_INPUT_CLASS; 519 1.2.4.2 joerg strcpy(di->label.name, AudioCinputs); 520 1.2.4.2 joerg di->type = AUDIO_MIXER_CLASS; 521 1.2.4.2 joerg di->next = di->prev = AUDIO_MIXER_LAST; 522 1.2.4.2 joerg return 0; 523 1.2.4.2 joerg case PAD_OUTPUT_MASTER_VOLUME: 524 1.2.4.2 joerg di->mixer_class = PAD_OUTPUT_CLASS; 525 1.2.4.2 joerg strcpy(di->label.name, AudioNmaster); 526 1.2.4.2 joerg di->type = AUDIO_MIXER_VALUE; 527 1.2.4.2 joerg di->next = di->prev = AUDIO_MIXER_LAST; 528 1.2.4.2 joerg di->un.v.num_channels = 1; 529 1.2.4.2 joerg strcpy(di->un.v.units.name, AudioNvolume); 530 1.2.4.2 joerg return 0; 531 1.2.4.2 joerg case PAD_INPUT_DAC_VOLUME: 532 1.2.4.2 joerg di->mixer_class = PAD_INPUT_CLASS; 533 1.2.4.2 joerg strcpy(di->label.name, AudioNdac); 534 1.2.4.2 joerg di->type = AUDIO_MIXER_VALUE; 535 1.2.4.2 joerg di->next = di->prev = AUDIO_MIXER_LAST; 536 1.2.4.2 joerg di->un.v.num_channels = 1; 537 1.2.4.2 joerg strcpy(di->un.v.units.name, AudioNvolume); 538 1.2.4.2 joerg return 0; 539 1.2.4.2 joerg } 540 1.2.4.2 joerg 541 1.2.4.2 joerg return ENXIO; 542 1.2.4.2 joerg } 543 1.2.4.2 joerg 544 1.2.4.2 joerg static int 545 1.2.4.2 joerg pad_get_props(void *opaque) 546 1.2.4.2 joerg { 547 1.2.4.2 joerg return 0; 548 1.2.4.2 joerg } 549 1.2.4.2 joerg 550 1.2.4.2 joerg static int 551 1.2.4.2 joerg pad_round_blocksize(void *opaque, int blksize, int mode, 552 1.2.4.2 joerg const audio_params_t *p) 553 1.2.4.2 joerg { 554 1.2.4.2 joerg return PAD_BLKSIZE; 555 1.2.4.2 joerg } 556
Indexes created Thu Oct 23 22:10:10 GMT 2025