code.delx.au - pulseaudio/blob - src/modules/module-solaris.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   polypaudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with polypaudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <assert.h>
  29 #include <errno.h>
  30 #include <string.h>
  31 #include <fcntl.h>
  32 #include <unistd.h>
  33 #include <limits.h>
  34 #include <sys/ioctl.h>
  35 #include <sys/stat.h>
  36 #include <sys/types.h>
  37
  38 #include <signal.h>
  39 #include <stropts.h>
  40 #include <sys/conf.h>
  41 #include <sys/audio.h>
  42
  43 #include <polyp/mainloop-signal.h>
  44
  45 #include <polypcore/iochannel.h>
  46 #include <polypcore/sink.h>
  47 #include <polypcore/source.h>
  48 #include <polypcore/module.h>
  49 #include <polypcore/sample-util.h>
  50 #include <polypcore/util.h>
  51 #include <polypcore/modargs.h>
  52 #include <polypcore/xmalloc.h>
  53 #include <polypcore/log.h>
  54
  55 #include "module-solaris-symdef.h"
  56
  57 PA_MODULE_AUTHOR("Pierre Ossman")
  58 PA_MODULE_DESCRIPTION("Solaris Sink/Source")
  59 PA_MODULE_VERSION(PACKAGE_VERSION)
  60 PA_MODULE_USAGE("sink_name=<name for the sink> source_name=<name for the source> device=<OSS device> record=<enable source?> playback=<enable sink?> format=<sample format> channels=<number of channels> rate=<sample rate> buffer_size=<record buffer size>")
  61
  62 struct userdata {
  63     pa_sink *sink;
  64     pa_source *source;
  65     pa_iochannel *io;
  66     pa_core *core;
  67     pa_time_event *timer;
  68     pa_usec_t poll_timeout;
  69     pa_signal_event *sig;
  70
  71     pa_memchunk memchunk, silence;
  72
  73     uint32_t sample_size;
  74     uint32_t buffer_size;
  75     unsigned int written_bytes, read_bytes;
  76
  77     int fd;
  78     pa_module *module;
  79 };
  80
  81 static const char* const valid_modargs[] = {
  82     "sink_name",
  83     "source_name",
  84     "device",
  85     "record",
  86     "playback",
  87     "buffer_size",
  88     "format",
  89     "rate",
  90     "channels",
  91     NULL
  92 };
  93
  94 #define DEFAULT_SINK_NAME "solaris_output"
  95 #define DEFAULT_SOURCE_NAME "solaris_input"
  96 #define DEFAULT_DEVICE "/dev/audio"
  97
  98 #define CHUNK_SIZE 2048
  99
 100 static void update_usage(struct userdata *u) {
 101    pa_module_set_used(u->module,
 102                       (u->sink ? pa_idxset_size(u->sink->inputs) : 0) +
 103                       (u->sink ? pa_idxset_size(u->sink->monitor_source->outputs) : 0) +
 104                       (u->source ? pa_idxset_size(u->source->outputs) : 0));
 105 }
 106
 107 static void do_write(struct userdata *u) {
 108     audio_info_t info;
 109     int err;
 110     pa_memchunk *memchunk;
 111     size_t len;
 112     ssize_t r;
 113
 114     assert(u);
 115
 116     /* We cannot check pa_iochannel_is_writable() because of our buffer hack */
 117     if (!u->sink)
 118         return;
 119
 120     update_usage(u);
 121
 122     err = ioctl(u->fd, AUDIO_GETINFO, &info);
 123     assert(err >= 0);
 124
 125     /*
 126      * Since we cannot modify the size of the output buffer we fake it
 127      * by not filling it more than u->buffer_size.
 128      */
 129     len = u->buffer_size;
 130     len -= u->written_bytes - (info.play.samples * u->sample_size);
 131
 132     if (len == u->buffer_size)
 133         pa_log_debug(__FILE__": Solaris buffer underflow!");
 134
 135     if (len < u->sample_size)
 136         return;
 137
 138     memchunk = &u->memchunk;
 139
 140     if (!memchunk->length)
 141         if (pa_sink_render(u->sink, len, memchunk) < 0)
 142             memchunk = &u->silence;
 143
 144     assert(memchunk->memblock);
 145     assert(memchunk->memblock->data);
 146     assert(memchunk->length);
 147
 148     if (memchunk->length < len)
 149         len = memchunk->length;
 150
 151     if ((r = pa_iochannel_write(u->io, (uint8_t*) memchunk->memblock->data + memchunk->index, len)) < 0) {
 152         pa_log(__FILE__": write() failed: %s", strerror(errno));
 153         return;
 154     }
 155
 156     if (memchunk == &u->silence)
 157         assert(r % u->sample_size == 0);
 158     else {
 159         u->memchunk.index += r;
 160         u->memchunk.length -= r;
 161
 162         if (u->memchunk.length <= 0) {
 163             pa_memblock_unref(u->memchunk.memblock);
 164             u->memchunk.memblock = NULL;
 165         }
 166     }
 167
 168     u->written_bytes += r;
 169 }
 170
 171 static void do_read(struct userdata *u) {
 172     pa_memchunk memchunk;
 173     int err, l;
 174     ssize_t r;
 175     assert(u);
 176
 177     if (!u->source || !pa_iochannel_is_readable(u->io))
 178         return;
 179
 180     update_usage(u);
 181
 182     err = ioctl(u->fd, I_NREAD, &l);
 183     assert(err >= 0);
 184
 185     memchunk.memblock = pa_memblock_new(l, u->core->memblock_stat);
 186     assert(memchunk.memblock);
 187     if ((r = pa_iochannel_read(u->io, memchunk.memblock->data, memchunk.memblock->length)) < 0) {
 188         pa_memblock_unref(memchunk.memblock);
 189         if (errno != EAGAIN)
 190             pa_log(__FILE__": read() failed: %s", strerror(errno));
 191         return;
 192     }
 193
 194     assert(r <= (ssize_t) memchunk.memblock->length);
 195     memchunk.length = memchunk.memblock->length = r;
 196     memchunk.index = 0;
 197
 198     pa_source_post(u->source, &memchunk);
 199     pa_memblock_unref(memchunk.memblock);
 200
 201     u->read_bytes += r;
 202 }
 203
 204 static void io_callback(pa_iochannel *io, void*userdata) {
 205     struct userdata *u = userdata;
 206     assert(u);
 207     do_write(u);
 208     do_read(u);
 209 }
 210
 211 static void timer_cb(pa_mainloop_api*a, pa_time_event *e, const struct timeval *tv, void *userdata) {
 212     struct userdata *u = userdata;
 213     struct timeval ntv;
 214
 215     assert(u);
 216
 217     do_write(u);
 218
 219     pa_gettimeofday(&ntv);
 220     pa_timeval_add(&ntv, u->poll_timeout);
 221
 222     a->time_restart(e, &ntv);
 223 }
 224
 225 static void sig_callback(pa_mainloop_api *api, pa_signal_event*e, int sig, void *userdata) {
 226     struct userdata *u = userdata;
 227     pa_cvolume old_vol;
 228
 229     assert(u);
 230
 231     if (u->sink) {
 232         assert(u->sink->get_hw_volume);
 233         memcpy(&old_vol, &u->sink->hw_volume, sizeof(pa_cvolume));
 234         if (u->sink->get_hw_volume(u->sink) < 0)
 235             return;
 236         if (memcmp(&old_vol, &u->sink->hw_volume, sizeof(pa_cvolume)) != 0) {
 237             pa_subscription_post(u->sink->core,
 238                 PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE,
 239                 u->sink->index);
 240         }
 241     }
 242
 243     if (u->source) {
 244         assert(u->source->get_hw_volume);
 245         memcpy(&old_vol, &u->source->hw_volume, sizeof(pa_cvolume));
 246         if (u->source->get_hw_volume(u->source) < 0)
 247             return;
 248         if (memcmp(&old_vol, &u->source->hw_volume, sizeof(pa_cvolume)) != 0) {
 249             pa_subscription_post(u->source->core,
 250                 PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE,
 251                 u->source->index);
 252         }
 253     }
 254 }
 255
 256 static pa_usec_t sink_get_latency_cb(pa_sink *s) {
 257     pa_usec_t r = 0;
 258     audio_info_t info;
 259     int err;
 260     struct userdata *u = s->userdata;
 261     assert(s && u && u->sink);
 262
 263     err = ioctl(u->fd, AUDIO_GETINFO, &info);
 264     assert(err >= 0);
 265
 266     r += pa_bytes_to_usec(u->written_bytes, &s->sample_spec);
 267     r -= pa_bytes_to_usec(info.play.samples * u->sample_size, &s->sample_spec);
 268
 269     if (u->memchunk.memblock)
 270         r += pa_bytes_to_usec(u->memchunk.length, &s->sample_spec);
 271
 272     return r;
 273 }
 274
 275 static pa_usec_t source_get_latency_cb(pa_source *s) {
 276     pa_usec_t r = 0;
 277     struct userdata *u = s->userdata;
 278     audio_info_t info;
 279     int err;
 280     assert(s && u && u->source);
 281
 282     err = ioctl(u->fd, AUDIO_GETINFO, &info);
 283     assert(err >= 0);
 284
 285     r += pa_bytes_to_usec(info.record.samples * u->sample_size, &s->sample_spec);
 286     r -= pa_bytes_to_usec(u->read_bytes, &s->sample_spec);
 287
 288     return r;
 289 }
 290
 291 static int sink_get_hw_volume_cb(pa_sink *s) {
 292     struct userdata *u = s->userdata;
 293     audio_info_t info;
 294     int err;
 295
 296     err = ioctl(u->fd, AUDIO_GETINFO, &info);
 297     assert(err >= 0);
 298
 299     pa_cvolume_set(&s->hw_volume, s->hw_volume.channels,
 300         info.play.gain * PA_VOLUME_NORM / AUDIO_MAX_GAIN);
 301
 302     return 0;
 303 }
 304
 305 static int sink_set_hw_volume_cb(pa_sink *s) {
 306     struct userdata *u = s->userdata;
 307     audio_info_t info;
 308
 309     AUDIO_INITINFO(&info);
 310
 311     info.play.gain = pa_cvolume_avg(&s->hw_volume) * AUDIO_MAX_GAIN / PA_VOLUME_NORM;
 312     assert(info.play.gain <= AUDIO_MAX_GAIN);
 313
 314     if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) {
 315         if (errno == EINVAL)
 316             pa_log(__FILE__": AUDIO_SETINFO: Unsupported volume.");
 317         else
 318             pa_log(__FILE__": AUDIO_SETINFO: %s", strerror(errno));
 319         return -1;
 320     }
 321
 322     return 0;
 323 }
 324
 325 static int sink_get_hw_mute_cb(pa_sink *s) {
 326     struct userdata *u = s->userdata;
 327     audio_info_t info;
 328     int err;
 329
 330     err = ioctl(u->fd, AUDIO_GETINFO, &info);
 331     assert(err >= 0);
 332
 333     s->hw_muted = !!info.output_muted;
 334
 335     return 0;
 336 }
 337
 338 static int sink_set_hw_mute_cb(pa_sink *s) {
 339     struct userdata *u = s->userdata;
 340     audio_info_t info;
 341
 342     AUDIO_INITINFO(&info);
 343
 344     info.output_muted = !!s->hw_muted;
 345
 346     if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) {
 347         pa_log(__FILE__": AUDIO_SETINFO: %s", strerror(errno));
 348         return -1;
 349     }
 350
 351     return 0;
 352 }
 353
 354 static int source_get_hw_volume_cb(pa_source *s) {
 355     struct userdata *u = s->userdata;
 356     audio_info_t info;
 357     int err;
 358
 359     err = ioctl(u->fd, AUDIO_GETINFO, &info);
 360     assert(err >= 0);
 361
 362     pa_cvolume_set(&s->hw_volume, s->hw_volume.channels,
 363         info.record.gain * PA_VOLUME_NORM / AUDIO_MAX_GAIN);
 364
 365     return 0;
 366 }
 367
 368 static int source_set_hw_volume_cb(pa_source *s) {
 369     struct userdata *u = s->userdata;
 370     audio_info_t info;
 371
 372     AUDIO_INITINFO(&info);
 373
 374     info.record.gain = pa_cvolume_avg(&s->hw_volume) * AUDIO_MAX_GAIN / PA_VOLUME_NORM;
 375     assert(info.record.gain <= AUDIO_MAX_GAIN);
 376
 377     if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) {
 378         if (errno == EINVAL)
 379             pa_log(__FILE__": AUDIO_SETINFO: Unsupported volume.");
 380         else
 381             pa_log(__FILE__": AUDIO_SETINFO: %s", strerror(errno));
 382         return -1;
 383     }
 384
 385     return 0;
 386 }
 387
 388 static int pa_solaris_auto_format(int fd, int mode, pa_sample_spec *ss) {
 389     audio_info_t info;
 390
 391     AUDIO_INITINFO(&info);
 392
 393     if (mode != O_RDONLY) {
 394         info.play.sample_rate = ss->rate;
 395         info.play.channels = ss->channels;
 396         switch (ss->format) {
 397         case PA_SAMPLE_U8:
 398             info.play.precision = 8;
 399             info.play.encoding = AUDIO_ENCODING_LINEAR;
 400             break;
 401         case PA_SAMPLE_ALAW:
 402             info.play.precision = 8;
 403             info.play.encoding = AUDIO_ENCODING_ALAW;
 404             break;
 405         case PA_SAMPLE_ULAW:
 406             info.play.precision = 8;
 407             info.play.encoding = AUDIO_ENCODING_ULAW;
 408             break;
 409         case PA_SAMPLE_S16NE:
 410             info.play.precision = 16;
 411             info.play.encoding = AUDIO_ENCODING_LINEAR;
 412             break;
 413         default:
 414             return -1;
 415         }
 416     }
 417
 418     if (mode != O_WRONLY) {
 419         info.record.sample_rate = ss->rate;
 420         info.record.channels = ss->channels;
 421         switch (ss->format) {
 422         case PA_SAMPLE_U8:
 423             info.record.precision = 8;
 424             info.record.encoding = AUDIO_ENCODING_LINEAR;
 425             break;
 426         case PA_SAMPLE_ALAW:
 427             info.record.precision = 8;
 428             info.record.encoding = AUDIO_ENCODING_ALAW;
 429             break;
 430         case PA_SAMPLE_ULAW:
 431             info.record.precision = 8;
 432             info.record.encoding = AUDIO_ENCODING_ULAW;
 433             break;
 434         case PA_SAMPLE_S16NE:
 435             info.record.precision = 16;
 436             info.record.encoding = AUDIO_ENCODING_LINEAR;
 437             break;
 438         default:
 439             return -1;
 440         }
 441     }
 442
 443     if (ioctl(fd, AUDIO_SETINFO, &info) < 0) {
 444         if (errno == EINVAL)
 445             pa_log(__FILE__": AUDIO_SETINFO: Unsupported sample format.");
 446         else
 447             pa_log(__FILE__": AUDIO_SETINFO: %s", strerror(errno));
 448         return -1;
 449     }
 450
 451     return 0;
 452 }
 453
 454 static int pa_solaris_set_buffer(int fd, int buffer_size) {
 455     audio_info_t info;
 456
 457     AUDIO_INITINFO(&info);
 458
 459     info.record.buffer_size = buffer_size;
 460
 461     if (ioctl(fd, AUDIO_SETINFO, &info) < 0) {
 462         if (errno == EINVAL)
 463             pa_log(__FILE__": AUDIO_SETINFO: Unsupported buffer size.");
 464         else
 465             pa_log(__FILE__": AUDIO_SETINFO: %s", strerror(errno));
 466         return -1;
 467     }
 468
 469     return 0;
 470 }
 471
 472 int pa__init(pa_core *c, pa_module*m) {
 473     struct userdata *u = NULL;
 474     const char *p;
 475     int fd = -1;
 476     int buffer_size;
 477     int mode;
 478     int record = 1, playback = 1;
 479     pa_sample_spec ss;
 480     pa_modargs *ma = NULL;
 481     struct timeval tv;
 482     assert(c && m);
 483
 484     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
 485         pa_log(__FILE__": failed to parse module arguments.");
 486         goto fail;
 487     }
 488
 489     if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) {
 490         pa_log(__FILE__": record= and playback= expect numeric argument.");
 491         goto fail;
 492     }
 493
 494     if (!playback && !record) {
 495         pa_log(__FILE__": neither playback nor record enabled for device.");
 496         goto fail;
 497     }
 498
 499     mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));
 500
 501     buffer_size = 16384;
 502     if (pa_modargs_get_value_s32(ma, "buffer_size", &buffer_size) < 0) {
 503         pa_log(__FILE__": failed to parse buffer size argument");
 504         goto fail;
 505     }
 506
 507     ss = c->default_sample_spec;
 508     if (pa_modargs_get_sample_spec(ma, &ss) < 0) {
 509         pa_log(__FILE__": failed to parse sample specification");
 510         goto fail;
 511     }
 512
 513     if ((fd = open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), mode | O_NONBLOCK)) < 0)
 514         goto fail;
 515
 516     pa_log_info(__FILE__": device opened in %s mode.", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
 517
 518     if (pa_solaris_auto_format(fd, mode, &ss) < 0)
 519         goto fail;
 520
 521     if ((mode != O_WRONLY) && (buffer_size >= 1))
 522         if (pa_solaris_set_buffer(fd, buffer_size) < 0)
 523             goto fail;
 524
 525     u = pa_xmalloc(sizeof(struct userdata));
 526     u->core = c;
 527
 528     if (mode != O_WRONLY) {
 529         u->source = pa_source_new(c, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, NULL);
 530         assert(u->source);
 531         u->source->userdata = u;
 532         u->source->get_latency = source_get_latency_cb;
 533         u->source->get_hw_volume = source_get_hw_volume_cb;
 534         u->source->set_hw_volume = source_set_hw_volume_cb;
 535         pa_source_set_owner(u->source, m);
 536         u->source->description = pa_sprintf_malloc("Solaris PCM on '%s'", p);
 537     } else
 538         u->source = NULL;
 539
 540     if (mode != O_RDONLY) {
 541         u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, NULL);
 542         assert(u->sink);
 543         u->sink->get_latency = sink_get_latency_cb;
 544         u->sink->get_hw_volume = sink_get_hw_volume_cb;
 545         u->sink->set_hw_volume = sink_set_hw_volume_cb;
 546         u->sink->get_hw_mute = sink_get_hw_mute_cb;
 547         u->sink->set_hw_mute = sink_set_hw_mute_cb;
 548         u->sink->userdata = u;
 549         pa_sink_set_owner(u->sink, m);
 550         u->sink->description = pa_sprintf_malloc("Solaris PCM on '%s'", p);
 551     } else
 552         u->sink = NULL;
 553
 554     assert(u->source || u->sink);
 555
 556     u->io = pa_iochannel_new(c->mainloop, u->source ? fd : -1, u->sink ? fd : 0);
 557     assert(u->io);
 558     pa_iochannel_set_callback(u->io, io_callback, u);
 559     u->fd = fd;
 560
 561     u->memchunk.memblock = NULL;
 562     u->memchunk.length = 0;
 563     u->sample_size = pa_frame_size(&ss);
 564     u->buffer_size = buffer_size;
 565
 566     u->silence.memblock = pa_memblock_new(u->silence.length = CHUNK_SIZE, u->core->memblock_stat);
 567     assert(u->silence.memblock);
 568     pa_silence_memblock(u->silence.memblock, &ss);
 569     u->silence.index = 0;
 570
 571     u->written_bytes = 0;
 572     u->read_bytes = 0;
 573
 574     u->module = m;
 575     m->userdata = u;
 576
 577     u->poll_timeout = pa_bytes_to_usec(u->buffer_size / 10, &ss);
 578
 579     pa_gettimeofday(&tv);
 580     pa_timeval_add(&tv, u->poll_timeout);
 581
 582     u->timer = c->mainloop->time_new(c->mainloop, &tv, timer_cb, u);
 583     assert(u->timer);
 584
 585     u->sig = pa_signal_new(SIGPOLL, sig_callback, u);
 586     assert(u->sig);
 587     ioctl(u->fd, I_SETSIG, S_MSG);
 588
 589     pa_modargs_free(ma);
 590
 591     /* Read mixer settings */
 592     if (u->source)
 593         source_get_hw_volume_cb(u->source);
 594     if (u->sink) {
 595         sink_get_hw_volume_cb(u->sink);
 596         sink_get_hw_mute_cb(u->sink);
 597     }
 598
 599     return 0;
 600
 601 fail:
 602     if (fd >= 0)
 603         close(fd);
 604
 605     if (ma)
 606         pa_modargs_free(ma);
 607
 608     return -1;
 609 }
 610
 611 void pa__done(pa_core *c, pa_module*m) {
 612     struct userdata *u;
 613     assert(c && m);
 614
 615     if (!(u = m->userdata))
 616         return;
 617
 618     if (u->timer)
 619         c->mainloop->time_free(u->timer);
 620     ioctl(u->fd, I_SETSIG, 0);
 621     pa_signal_free(u->sig);
 622
 623     if (u->memchunk.memblock)
 624         pa_memblock_unref(u->memchunk.memblock);
 625     if (u->silence.memblock)
 626         pa_memblock_unref(u->silence.memblock);
 627
 628     if (u->sink) {
 629         pa_sink_disconnect(u->sink);
 630         pa_sink_unref(u->sink);
 631     }
 632
 633     if (u->source) {
 634         pa_source_disconnect(u->source);
 635         pa_source_unref(u->source);
 636     }
 637
 638     pa_iochannel_free(u->io);
 639     pa_xfree(u);
 640 }