src/modules/bluetooth/module-bluetooth-device.c

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2008 Joao Paulo Rechi Vita
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as
   8   published by the Free Software Foundation; either version 2 of the
   9   License, or (at your option) any later version.
  10
  11   PulseAudio 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
  17   License along with PulseAudio; 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 <string.h>
  27 #include <errno.h>
  28 #include <poll.h>
  29 #include <sys/ioctl.h>
  30 #include <linux/sockios.h>
  31 #include <arpa/inet.h>
  32
  33 #include <pulse/xmalloc.h>
  34 #include <pulse/timeval.h>
  35 #include <pulse/sample.h>
  36 #include <pulsecore/module.h>
  37 #include <pulsecore/modargs.h>
  38 #include <pulsecore/core-util.h>
  39 #include <pulsecore/core-error.h>
  40 #include <pulsecore/socket-util.h>
  41 #include <pulsecore/thread.h>
  42 #include <pulsecore/thread-mq.h>
  43 #include <pulsecore/rtpoll.h>
  44 #include <pulsecore/time-smoother.h>
  45 #include <pulsecore/rtclock.h>
  46 #include <pulsecore/namereg.h>
  47
  48 #include <modules/dbus-util.h>
  49
  50 #include "module-bluetooth-device-symdef.h"
  51 #include "ipc.h"
  52 #include "sbc.h"
  53 #include "rtp.h"
  54 #include "bluetooth-util.h"
  55
  56 #define MAX_BITPOOL 64
  57 #define MIN_BITPOOL 2U
  58 #define SOL_SCO 17
  59 #define SCO_TXBUFS 0x03
  60 #define SCO_RXBUFS 0x04
  61
  62 PA_MODULE_AUTHOR("Joao Paulo Rechi Vita");
  63 PA_MODULE_DESCRIPTION("Bluetooth audio sink and source");
  64 PA_MODULE_VERSION(PACKAGE_VERSION);
  65 PA_MODULE_LOAD_ONCE(FALSE);
  66 PA_MODULE_USAGE(
  67         "name=<name for the card/sink/source, to be prefixed> "
  68         "card_name=<name for the card> "
  69         "sink_name=<name for the sink> "
  70         "source_name=<name for the source> "
  71         "address=<address of the device> "
  72         "profile=<a2dp|hsp> "
  73         "rate=<sample rate> "
  74         "channels=<number of channels> "
  75         "path=<device object path> "
  76         "sco_sink=<SCO over PCM sink name> "
  77         "sco_source=<SCO over PCM source name>");
  78
  79 static const char* const valid_modargs[] = {
  80     "name",
  81     "card_name",
  82     "sink_name",
  83     "source_name",
  84     "address",
  85     "profile",
  86     "rate",
  87     "channels",
  88     "path",
  89     "sco_sink",
  90     "sco_source",
  91     NULL
  92 };
  93
  94 struct a2dp_info {
  95     sbc_capabilities_t sbc_capabilities;
  96     sbc_t sbc;                           /* Codec data */
  97     pa_bool_t sbc_initialized;           /* Keep track if the encoder is initialized */
  98     size_t codesize;                     /* SBC codesize */
  99
 100     void* buffer;                        /* Codec transfer buffer */
 101     size_t buffer_size;                  /* Size of the buffer */
 102
 103     uint16_t seq_num;                    /* Cumulative packet sequence */
 104 };
 105
 106 struct hsp_info {
 107     pcm_capabilities_t pcm_capabilities;
 108     pa_sink *sco_sink;
 109     pa_source *sco_source;
 110     pa_hook_slot *sink_state_changed_slot;
 111     pa_hook_slot *source_state_changed_slot;
 112 };
 113
 114 enum profile {
 115     PROFILE_A2DP,
 116     PROFILE_HSP,
 117     PROFILE_OFF
 118 };
 119
 120 struct userdata {
 121     pa_core *core;
 122     pa_module *module;
 123
 124     pa_card *card;
 125     pa_sink *sink;
 126     pa_source *source;
 127
 128     pa_thread_mq thread_mq;
 129     pa_rtpoll *rtpoll;
 130     pa_rtpoll_item *rtpoll_item;
 131     pa_thread *thread;
 132
 133     uint64_t read_index, write_index;
 134     pa_usec_t started_at;
 135     pa_smoother *read_smoother;
 136
 137     pa_memchunk write_memchunk;
 138
 139     pa_sample_spec sample_spec;
 140
 141     int service_fd;
 142     int stream_fd;
 143
 144     size_t link_mtu;
 145     size_t block_size;
 146
 147     struct a2dp_info a2dp;
 148     struct hsp_info hsp;
 149     pa_dbus_connection *connection;
 150
 151     enum profile profile;
 152
 153     pa_modargs *modargs;
 154
 155     pa_bluetooth_device *device;
 156
 157     int write_type, read_type;
 158 };
 159
 160 static int init_bt(struct userdata *u);
 161 static int init_profile(struct userdata *u);
 162
 163 static int service_send(int fd, const bt_audio_msg_header_t *msg) {
 164     size_t length;
 165     ssize_t r;
 166
 167     pa_assert(fd >= 0);
 168     pa_assert(msg);
 169
 170     length = msg->length ? msg->length : BT_SUGGESTED_BUFFER_SIZE;
 171
 172     pa_log_debug("Sending %s -> %s",
 173                  pa_strnull(bt_audio_strtype(msg->type)),
 174                  pa_strnull(bt_audio_strname(msg->name)));
 175
 176     if ((r = send(fd, msg, length, 0)) == (ssize_t) length)
 177         return 0;
 178
 179     if (r < 0)
 180         pa_log_error("Error sending data to audio service: %s", pa_cstrerror(errno));
 181     else
 182         pa_log_error("Short send()");
 183
 184     return -1;
 185 }
 186
 187 static int service_recv(int fd, bt_audio_msg_header_t *msg, size_t expected_length) {
 188     size_t length;
 189     ssize_t r;
 190
 191     pa_assert(fd >= 0);
 192     pa_assert(msg);
 193
 194     length = expected_length ? expected_length : BT_SUGGESTED_BUFFER_SIZE;
 195
 196     pa_log_debug("Trying to receive message from audio service...");
 197
 198     r = recv(fd, msg, length, 0);
 199
 200     if (r > 0 && (r == (ssize_t) length || expected_length <= 0)) {
 201
 202         if ((size_t) r < sizeof(*msg)) {
 203             pa_log_error("Packet read too small.");
 204             return -1;
 205         }
 206
 207         if (r != msg->length) {
 208             pa_log_error("Size read doesn't match header size.");
 209             return -1;
 210         }
 211
 212         pa_log_debug("Received %s <- %s",
 213                      pa_strnull(bt_audio_strtype(msg->type)),
 214                      pa_strnull(bt_audio_strname(msg->name)));
 215         return 0;
 216     }
 217
 218     if (r < 0)
 219         pa_log_error("Error receiving data from audio service: %s", pa_cstrerror(errno));
 220     else
 221         pa_log_error("Short recv()");
 222
 223     return -1;
 224 }
 225
 226 static int service_expect(int fd, bt_audio_msg_header_t *rsp, uint8_t expected_name, size_t expected_length) {
 227     int r;
 228
 229     pa_assert(fd >= 0);
 230     pa_assert(rsp);
 231
 232     if ((r = service_recv(fd, rsp, expected_length)) < 0)
 233         return r;
 234
 235     if (rsp->name != expected_name) {
 236         pa_log_error("Bogus message %s received while %s was expected",
 237                      pa_strnull(bt_audio_strname(rsp->name)),
 238                      pa_strnull(bt_audio_strname(expected_name)));
 239         return -1;
 240     }
 241
 242     if (rsp->type == BT_ERROR) {
 243         bt_audio_error_t *error = (bt_audio_error_t *) rsp;
 244         pa_log_error("%s failed: %s", pa_strnull(bt_audio_strname(rsp->name)), pa_cstrerror(error->posix_errno));
 245         return -1;
 246     }
 247
 248     return 0;
 249 }
 250
 251 static int parse_caps(struct userdata *u, const struct bt_get_capabilities_rsp *rsp) {
 252     uint16_t bytes_left;
 253     const codec_capabilities_t *codec;
 254
 255     pa_assert(u);
 256     pa_assert(rsp);
 257
 258     bytes_left = rsp->h.length - sizeof(*rsp);
 259
 260     if (bytes_left < sizeof(codec_capabilities_t)) {
 261         pa_log_error("Packet too small to store codec information.");
 262         return -1;
 263     }
 264
 265     codec = (codec_capabilities_t *) rsp->data; /** ALIGNMENT? **/
 266
 267     pa_log_debug("Payload size is %lu %lu", (unsigned long) bytes_left, (unsigned long) sizeof(*codec));
 268
 269     if ((u->profile == PROFILE_A2DP && codec->transport != BT_CAPABILITIES_TRANSPORT_A2DP) ||
 270         (u->profile == PROFILE_HSP && codec->transport != BT_CAPABILITIES_TRANSPORT_SCO)) {
 271         pa_log_error("Got capabilities for wrong codec.");
 272         return -1;
 273     }
 274
 275     if (u->profile == PROFILE_HSP) {
 276         if (bytes_left <= 0 || codec->length != sizeof(u->hsp.pcm_capabilities))
 277             return -1;
 278
 279         pa_assert(codec->type == BT_HFP_CODEC_PCM);
 280
 281         memcpy(&u->hsp.pcm_capabilities, codec, sizeof(u->hsp.pcm_capabilities));
 282     }
 283
 284     if (u->profile == PROFILE_A2DP) {
 285
 286         while (bytes_left > 0) {
 287             if (codec->type == BT_A2DP_CODEC_SBC)
 288                 break;
 289
 290             bytes_left -= codec->length;
 291             codec = (const codec_capabilities_t*) ((const uint8_t*) codec + codec->length);
 292         }
 293
 294         if (bytes_left <= 0 || codec->length != sizeof(u->a2dp.sbc_capabilities))
 295             return -1;
 296
 297         pa_assert(codec->type == BT_A2DP_CODEC_SBC);
 298
 299         memcpy(&u->a2dp.sbc_capabilities, codec, sizeof(u->a2dp.sbc_capabilities));
 300     }
 301
 302     return 0;
 303 }
 304
 305 static int get_caps(struct userdata *u) {
 306     union {
 307         struct bt_get_capabilities_req getcaps_req;
 308         struct bt_get_capabilities_rsp getcaps_rsp;
 309         uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
 310     } msg;
 311
 312     pa_assert(u);
 313
 314     memset(&msg, 0, sizeof(msg));
 315     msg.getcaps_req.h.type = BT_REQUEST;
 316     msg.getcaps_req.h.name = BT_GET_CAPABILITIES;
 317     msg.getcaps_req.h.length = sizeof(msg.getcaps_req);
 318
 319     pa_strlcpy(msg.getcaps_req.device, u->device->address, sizeof(msg.getcaps_req.device));
 320     if (u->profile == PROFILE_A2DP)
 321         msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_A2DP;
 322     else {
 323         pa_assert(u->profile == PROFILE_HSP);
 324         msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_SCO;
 325     }
 326     msg.getcaps_req.flags = BT_FLAG_AUTOCONNECT;
 327
 328     if (service_send(u->service_fd, &msg.getcaps_req.h) < 0)
 329         return -1;
 330
 331     if (service_expect(u->service_fd, &msg.getcaps_rsp.h, BT_GET_CAPABILITIES, 0) < 0)
 332         return -1;
 333
 334     return parse_caps(u, &msg.getcaps_rsp);
 335 }
 336
 337 static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
 338
 339     switch (freq) {
 340         case BT_SBC_SAMPLING_FREQ_16000:
 341         case BT_SBC_SAMPLING_FREQ_32000:
 342             return 53;
 343
 344         case BT_SBC_SAMPLING_FREQ_44100:
 345
 346             switch (mode) {
 347                 case BT_A2DP_CHANNEL_MODE_MONO:
 348                 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
 349                     return 31;
 350
 351                 case BT_A2DP_CHANNEL_MODE_STEREO:
 352                 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
 353                     return 53;
 354
 355                 default:
 356                     pa_log_warn("Invalid channel mode %u", mode);
 357                     return 53;
 358             }
 359
 360         case BT_SBC_SAMPLING_FREQ_48000:
 361
 362             switch (mode) {
 363                 case BT_A2DP_CHANNEL_MODE_MONO:
 364                 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
 365                     return 29;
 366
 367                 case BT_A2DP_CHANNEL_MODE_STEREO:
 368                 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
 369                     return 51;
 370
 371                 default:
 372                     pa_log_warn("Invalid channel mode %u", mode);
 373                     return 51;
 374             }
 375
 376         default:
 377             pa_log_warn("Invalid sampling freq %u", freq);
 378             return 53;
 379     }
 380 }
 381
 382 static int setup_a2dp(struct userdata *u) {
 383     sbc_capabilities_t *cap;
 384     int i;
 385
 386     static const struct {
 387         uint32_t rate;
 388         uint8_t cap;
 389     } freq_table[] = {
 390         { 16000U, BT_SBC_SAMPLING_FREQ_16000 },
 391         { 32000U, BT_SBC_SAMPLING_FREQ_32000 },
 392         { 44100U, BT_SBC_SAMPLING_FREQ_44100 },
 393         { 48000U, BT_SBC_SAMPLING_FREQ_48000 }
 394     };
 395
 396     pa_assert(u);
 397     pa_assert(u->profile == PROFILE_A2DP);
 398
 399     cap = &u->a2dp.sbc_capabilities;
 400
 401     /* Find the lowest freq that is at least as high as the requested
 402      * sampling rate */
 403     for (i = 0; (unsigned) i < PA_ELEMENTSOF(freq_table); i++)
 404         if (freq_table[i].rate >= u->sample_spec.rate && (cap->frequency & freq_table[i].cap)) {
 405             u->sample_spec.rate = freq_table[i].rate;
 406             cap->frequency = freq_table[i].cap;
 407             break;
 408         }
 409
 410     if ((unsigned) i >= PA_ELEMENTSOF(freq_table)) {
 411         for (; i >= 0; i--) {
 412             if (cap->frequency & freq_table[i].cap) {
 413                 u->sample_spec.rate = freq_table[i].rate;
 414                 cap->frequency = freq_table[i].cap;
 415                 break;
 416             }
 417         }
 418
 419         if (i < 0) {
 420             pa_log("Not suitable sample rate");
 421             return -1;
 422         }
 423     }
 424
 425     if (u->sample_spec.channels <= 1) {
 426         if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
 427             cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
 428             u->sample_spec.channels = 1;
 429         } else
 430             u->sample_spec.channels = 2;
 431     }
 432
 433     if (u->sample_spec.channels >= 2) {
 434         u->sample_spec.channels = 2;
 435
 436         if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
 437             cap->channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
 438         else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
 439             cap->channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
 440         else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
 441             cap->channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
 442         else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
 443             cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
 444             u->sample_spec.channels = 1;
 445         } else {
 446             pa_log("No supported channel modes");
 447             return -1;
 448         }
 449     }
 450
 451     if (cap->block_length & BT_A2DP_BLOCK_LENGTH_16)
 452         cap->block_length = BT_A2DP_BLOCK_LENGTH_16;
 453     else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_12)
 454         cap->block_length = BT_A2DP_BLOCK_LENGTH_12;
 455     else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_8)
 456         cap->block_length = BT_A2DP_BLOCK_LENGTH_8;
 457     else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_4)
 458         cap->block_length = BT_A2DP_BLOCK_LENGTH_4;
 459     else {
 460         pa_log_error("No supported block lengths");
 461         return -1;
 462     }
 463
 464     if (cap->subbands & BT_A2DP_SUBBANDS_8)
 465         cap->subbands = BT_A2DP_SUBBANDS_8;
 466     else if (cap->subbands & BT_A2DP_SUBBANDS_4)
 467         cap->subbands = BT_A2DP_SUBBANDS_4;
 468     else {
 469         pa_log_error("No supported subbands");
 470         return -1;
 471     }
 472
 473     if (cap->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS)
 474         cap->allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
 475     else if (cap->allocation_method & BT_A2DP_ALLOCATION_SNR)
 476         cap->allocation_method = BT_A2DP_ALLOCATION_SNR;
 477
 478     cap->min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
 479     cap->max_bitpool = (uint8_t) PA_MIN(a2dp_default_bitpool(cap->frequency, cap->channel_mode), cap->max_bitpool);
 480
 481     return 0;
 482 }
 483
 484 static void setup_sbc(struct a2dp_info *a2dp) {
 485     sbc_capabilities_t *active_capabilities;
 486
 487     pa_assert(a2dp);
 488
 489     active_capabilities = &a2dp->sbc_capabilities;
 490
 491     if (a2dp->sbc_initialized)
 492         sbc_reinit(&a2dp->sbc, 0);
 493     else
 494         sbc_init(&a2dp->sbc, 0);
 495     a2dp->sbc_initialized = TRUE;
 496
 497     switch (active_capabilities->frequency) {
 498         case BT_SBC_SAMPLING_FREQ_16000:
 499             a2dp->sbc.frequency = SBC_FREQ_16000;
 500             break;
 501         case BT_SBC_SAMPLING_FREQ_32000:
 502             a2dp->sbc.frequency = SBC_FREQ_32000;
 503             break;
 504         case BT_SBC_SAMPLING_FREQ_44100:
 505             a2dp->sbc.frequency = SBC_FREQ_44100;
 506             break;
 507         case BT_SBC_SAMPLING_FREQ_48000:
 508             a2dp->sbc.frequency = SBC_FREQ_48000;
 509             break;
 510         default:
 511             pa_assert_not_reached();
 512     }
 513
 514     switch (active_capabilities->channel_mode) {
 515         case BT_A2DP_CHANNEL_MODE_MONO:
 516             a2dp->sbc.mode = SBC_MODE_MONO;
 517             break;
 518         case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
 519             a2dp->sbc.mode = SBC_MODE_DUAL_CHANNEL;
 520             break;
 521         case BT_A2DP_CHANNEL_MODE_STEREO:
 522             a2dp->sbc.mode = SBC_MODE_STEREO;
 523             break;
 524         case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
 525             a2dp->sbc.mode = SBC_MODE_JOINT_STEREO;
 526             break;
 527         default:
 528             pa_assert_not_reached();
 529     }
 530
 531     switch (active_capabilities->allocation_method) {
 532         case BT_A2DP_ALLOCATION_SNR:
 533             a2dp->sbc.allocation = SBC_AM_SNR;
 534             break;
 535         case BT_A2DP_ALLOCATION_LOUDNESS:
 536             a2dp->sbc.allocation = SBC_AM_LOUDNESS;
 537             break;
 538         default:
 539             pa_assert_not_reached();
 540     }
 541
 542     switch (active_capabilities->subbands) {
 543         case BT_A2DP_SUBBANDS_4:
 544             a2dp->sbc.subbands = SBC_SB_4;
 545             break;
 546         case BT_A2DP_SUBBANDS_8:
 547             a2dp->sbc.subbands = SBC_SB_8;
 548             break;
 549         default:
 550             pa_assert_not_reached();
 551     }
 552
 553     switch (active_capabilities->block_length) {
 554         case BT_A2DP_BLOCK_LENGTH_4:
 555             a2dp->sbc.blocks = SBC_BLK_4;
 556             break;
 557         case BT_A2DP_BLOCK_LENGTH_8:
 558             a2dp->sbc.blocks = SBC_BLK_8;
 559             break;
 560         case BT_A2DP_BLOCK_LENGTH_12:
 561             a2dp->sbc.blocks = SBC_BLK_12;
 562             break;
 563         case BT_A2DP_BLOCK_LENGTH_16:
 564             a2dp->sbc.blocks = SBC_BLK_16;
 565             break;
 566         default:
 567             pa_assert_not_reached();
 568     }
 569
 570     a2dp->sbc.bitpool = active_capabilities->max_bitpool;
 571     a2dp->codesize = (uint16_t) sbc_get_codesize(&a2dp->sbc);
 572 }
 573
 574 static int set_conf(struct userdata *u) {
 575     union {
 576         struct bt_set_configuration_req setconf_req;
 577         struct bt_set_configuration_rsp setconf_rsp;
 578         uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
 579     } msg;
 580
 581     if (u->profile == PROFILE_A2DP ) {
 582         u->sample_spec.format = PA_SAMPLE_S16LE;
 583
 584         if (setup_a2dp(u) < 0)
 585             return -1;
 586     } else {
 587         pa_assert(u->profile == PROFILE_HSP);
 588
 589         u->sample_spec.format = PA_SAMPLE_S16LE;
 590         u->sample_spec.channels = 1;
 591         u->sample_spec.rate = 8000;
 592     }
 593
 594     memset(&msg, 0, sizeof(msg));
 595     msg.setconf_req.h.type = BT_REQUEST;
 596     msg.setconf_req.h.name = BT_SET_CONFIGURATION;
 597     msg.setconf_req.h.length = sizeof(msg.setconf_req);
 598
 599     pa_strlcpy(msg.setconf_req.device, u->device->address, sizeof(msg.setconf_req.device));
 600     msg.setconf_req.access_mode = u->profile == PROFILE_A2DP ? BT_CAPABILITIES_ACCESS_MODE_WRITE : BT_CAPABILITIES_ACCESS_MODE_READWRITE;
 601
 602     msg.setconf_req.codec.transport = u->profile == PROFILE_A2DP ? BT_CAPABILITIES_TRANSPORT_A2DP : BT_CAPABILITIES_TRANSPORT_SCO;
 603
 604     if (u->profile == PROFILE_A2DP) {
 605         memcpy(&msg.setconf_req.codec, &u->a2dp.sbc_capabilities, sizeof(u->a2dp.sbc_capabilities));
 606         msg.setconf_req.h.length += msg.setconf_req.codec.length - sizeof(msg.setconf_req.codec);
 607     }
 608
 609     if (service_send(u->service_fd, &msg.setconf_req.h) < 0)
 610         return -1;
 611
 612     if (service_expect(u->service_fd, &msg.setconf_rsp.h, BT_SET_CONFIGURATION, sizeof(msg.setconf_rsp)) < 0)
 613         return -1;
 614
 615     if ((u->profile == PROFILE_A2DP && msg.setconf_rsp.transport != BT_CAPABILITIES_TRANSPORT_A2DP) ||
 616         (u->profile == PROFILE_HSP && msg.setconf_rsp.transport != BT_CAPABILITIES_TRANSPORT_SCO)) {
 617         pa_log("Transport doesn't match what we requested.");
 618         return -1;
 619     }
 620
 621     if ((u->profile == PROFILE_A2DP && msg.setconf_rsp.access_mode != BT_CAPABILITIES_ACCESS_MODE_WRITE) ||
 622         (u->profile == PROFILE_HSP && msg.setconf_rsp.access_mode != BT_CAPABILITIES_ACCESS_MODE_READWRITE)) {
 623         pa_log("Access mode doesn't match what we requested.");
 624         return -1;
 625     }
 626
 627     u->link_mtu = msg.setconf_rsp.link_mtu;
 628
 629     /* setup SBC encoder now we agree on parameters */
 630     if (u->profile == PROFILE_A2DP) {
 631         setup_sbc(&u->a2dp);
 632         u->block_size = u->a2dp.codesize;
 633         pa_log_info("SBC parameters:\n\tallocation=%u\n\tsubbands=%u\n\tblocks=%u\n\tbitpool=%u\n",
 634                     u->a2dp.sbc.allocation, u->a2dp.sbc.subbands, u->a2dp.sbc.blocks, u->a2dp.sbc.bitpool);
 635     } else
 636         u->block_size = u->link_mtu;
 637
 638     return 0;
 639 }
 640
 641 static int setup_stream_fd(struct userdata *u) {
 642     union {
 643         bt_audio_msg_header_t rsp;
 644         struct bt_start_stream_req start_req;
 645         struct bt_start_stream_rsp start_rsp;
 646         struct bt_new_stream_ind streamfd_ind;
 647         uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
 648     } msg;
 649
 650     pa_assert(u);
 651     pa_assert(u->stream_fd < 0);
 652
 653     memset(msg.buf, 0, BT_SUGGESTED_BUFFER_SIZE);
 654     msg.start_req.h.type = BT_REQUEST;
 655     msg.start_req.h.name = BT_START_STREAM;
 656     msg.start_req.h.length = sizeof(msg.start_req);
 657
 658     if (service_send(u->service_fd, &msg.start_req.h) < 0)
 659         return -1;
 660
 661     if (service_expect(u->service_fd, &msg.rsp, BT_START_STREAM, sizeof(msg.start_rsp)) < 0)
 662         return -1;
 663
 664     if (service_expect(u->service_fd, &msg.rsp, BT_NEW_STREAM, sizeof(msg.streamfd_ind)) < 0)
 665         return -1;
 666
 667     if ((u->stream_fd = bt_audio_service_get_data_fd(u->service_fd)) < 0) {
 668         pa_log("Failed to get stream fd from audio service.");
 669         return -1;
 670     }
 671
 672 /*     setsockopt(u->stream_fd, SOL_SCO, SCO_TXBUFS, &period_count, sizeof(period_count)); */
 673 /*     setsockopt(u->stream_fd, SOL_SCO, SCO_SNDBUF, &period_count, sizeof(period_count)); */
 674
 675     pa_make_fd_nonblock(u->stream_fd);
 676     pa_make_socket_low_delay(u->stream_fd);
 677
 678     return 0;
 679 }
 680
 681 static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
 682     struct userdata *u = PA_SINK(o)->userdata;
 683     pa_assert(u->sink == PA_SINK(o));
 684
 685     pa_log_debug("got message: %d", code);
 686     switch (code) {
 687
 688         case PA_SINK_MESSAGE_SET_STATE:
 689
 690             switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
 691
 692                 case PA_SINK_SUSPENDED:
 693                     pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
 694                     break;
 695
 696                 case PA_SINK_IDLE:
 697                 case PA_SINK_RUNNING:
 698                     if (!PA_SINK_IS_OPENED(u->sink->thread_info.state))
 699                         u->started_at = pa_rtclock_usec();
 700
 701                     break;
 702
 703                 case PA_SINK_UNLINKED:
 704                 case PA_SINK_INIT:
 705                 case PA_SINK_INVALID_STATE:
 706                     ;
 707             }
 708             break;
 709
 710         case PA_SINK_MESSAGE_GET_LATENCY: {
 711             *((pa_usec_t*) data) = 0;
 712             return 0;
 713         }
 714
 715     }
 716
 717     return pa_sink_process_msg(o, code, data, offset, chunk);
 718 }
 719
 720 static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
 721     struct userdata *u = PA_SOURCE(o)->userdata;
 722
 723     pa_assert(u->source == PA_SOURCE(o));
 724
 725     pa_log_debug("got message: %d", code);
 726     switch (code) {
 727
 728         case PA_SOURCE_MESSAGE_SET_STATE:
 729
 730             switch ((pa_source_state_t) PA_PTR_TO_UINT(data)) {
 731
 732                 case PA_SOURCE_SUSPENDED:
 733                     pa_smoother_pause(u->read_smoother, pa_rtclock_usec());
 734                     break;
 735
 736                 case PA_SOURCE_IDLE:
 737                 case PA_SOURCE_RUNNING:
 738                     if (u->source->thread_info.state == PA_SOURCE_SUSPENDED)
 739                         pa_smoother_resume(u->read_smoother, pa_rtclock_usec());
 740                     break;
 741
 742                 case PA_SOURCE_UNLINKED:
 743                 case PA_SOURCE_INIT:
 744                 case PA_SOURCE_INVALID_STATE:
 745                     ;
 746             }
 747             break;
 748
 749         case PA_SOURCE_MESSAGE_GET_LATENCY: {
 750             *((pa_usec_t*) data) = 0;
 751             return 0;
 752         }
 753
 754     }
 755
 756     return pa_source_process_msg(o, code, data, offset, chunk);
 757 }
 758
 759 static int hsp_process_render(struct userdata *u) {
 760     int ret = 0;
 761     pa_memchunk memchunk;
 762
 763     pa_assert(u);
 764     pa_assert(u->profile == PROFILE_HSP);
 765     pa_assert(u->sink);
 766
 767     pa_sink_render_full(u->sink, u->block_size, &memchunk);
 768
 769     for (;;) {
 770         ssize_t l;
 771         const void *p;
 772
 773         p = (const uint8_t*) pa_memblock_acquire(memchunk.memblock) + memchunk.index;
 774         l = pa_write(u->stream_fd, p, memchunk.length, &u->write_type);
 775         pa_memblock_release(memchunk.memblock);
 776
 777         pa_log_debug("Memblock written to socket: %lli bytes", (long long) l);
 778
 779         pa_assert(l != 0);
 780
 781         if (l < 0) {
 782             if (errno == EINTR)
 783                 continue;
 784             else {
 785                 pa_log_error("Failed to write data to SCO socket: %s", pa_cstrerror(errno));
 786                 ret = -1;
 787                 break;
 788             }
 789         } else {
 790             pa_assert((size_t) l <= memchunk.length);
 791
 792             memchunk.index += (size_t) l;
 793             memchunk.length -= (size_t) l;
 794
 795             u->write_index += (uint64_t) l;
 796
 797             if (memchunk.length <= 0)
 798                 break;
 799         }
 800     }
 801
 802     pa_memblock_unref(memchunk.memblock);
 803
 804     return ret;
 805 }
 806
 807 static int hsp_process_push(struct userdata *u) {
 808     int ret = 0;
 809     pa_memchunk memchunk;
 810
 811     pa_assert(u);
 812     pa_assert(u->profile == PROFILE_HSP);
 813     pa_assert(u->source);
 814
 815     memchunk.memblock = pa_memblock_new(u->core->mempool, u->block_size);
 816     memchunk.index = memchunk.length = 0;
 817
 818     for (;;) {
 819         ssize_t l;
 820         void *p;
 821
 822         p = pa_memblock_acquire(memchunk.memblock);
 823         l = pa_read(u->stream_fd, p, pa_memblock_get_length(memchunk.memblock), &u->read_type);
 824         pa_memblock_release(memchunk.memblock);
 825
 826         if (l <= 0) {
 827             if (l < 0 && errno == EINTR)
 828                 continue;
 829             else {
 830                 pa_log_error("Failed to read data from SCO socket: %s", ret < 0 ? pa_cstrerror(errno) : "EOF");
 831                 ret = -1;
 832                 break;
 833             }
 834         } else {
 835             memchunk.length = (size_t) l;
 836             u->read_index += (uint64_t) l;
 837
 838             pa_source_post(u->source, &memchunk);
 839             break;
 840         }
 841     }
 842
 843     pa_memblock_unref(memchunk.memblock);
 844
 845     return ret;
 846 }
 847
 848 static int a2dp_process_render(struct userdata *u) {
 849     size_t frame_size;
 850     struct a2dp_info *a2dp;
 851     struct rtp_header *header;
 852     struct rtp_payload *payload;
 853     size_t left;
 854     void *d;
 855     const void *p;
 856     unsigned frame_count;
 857     int written;
 858     uint64_t writing_at;
 859
 860     pa_assert(u);
 861     pa_assert(u->profile == PROFILE_A2DP);
 862     pa_assert(u->sink);
 863
 864     a2dp = &u->a2dp;
 865
 866     if (a2dp->buffer_size < u->link_mtu) {
 867         a2dp->buffer_size = 2*u->link_mtu;
 868         pa_xfree(a2dp->buffer);
 869         a2dp->buffer = pa_xmalloc(a2dp->buffer_size);
 870     }
 871
 872     header = (struct rtp_header*) a2dp->buffer;
 873     payload = (struct rtp_payload*) ((uint8_t*) a2dp->buffer + sizeof(*header));
 874     d = (uint8_t*) a2dp->buffer + sizeof(*header) + sizeof(*payload);
 875     left = a2dp->buffer_size - sizeof(*header) - sizeof(*payload);
 876
 877     frame_size = sbc_get_frame_length(&a2dp->sbc);
 878     frame_count = 0;
 879
 880     writing_at = u->write_index;
 881
 882     do {
 883         int encoded;
 884
 885         if (!u->write_memchunk.memblock)
 886             pa_sink_render_full(u->sink, u->block_size, &u->write_memchunk);
 887
 888         p = (const uint8_t*) pa_memblock_acquire(u->write_memchunk.memblock) + u->write_memchunk.index;
 889         encoded = sbc_encode(&a2dp->sbc,
 890                              (void*) p, u->write_memchunk.length,
 891                              d, left,
 892                              &written);
 893         pa_memblock_release(u->write_memchunk.memblock);
 894
 895         if (encoded <= 0) {
 896             pa_log_error("SBC encoding error (%d)", encoded);
 897             return -1;
 898         }
 899
 900         pa_assert(written >= 0);
 901
 902         pa_assert((size_t) encoded <= u->write_memchunk.length);
 903         pa_assert((size_t) written <= left);
 904
 905 /*         pa_log_debug("SBC: encoded: %d; written: %d", encoded, written); */
 906
 907         u->write_memchunk.index += encoded;
 908         u->write_memchunk.length -= encoded;
 909
 910         if (u->write_memchunk.length <= 0) {
 911             pa_memblock_unref(u->write_memchunk.memblock);
 912             pa_memchunk_reset(&u->write_memchunk);
 913         }
 914
 915         u->write_index += encoded;
 916
 917         d = (uint8_t*) d + written;
 918         left -= written;
 919
 920         frame_count++;
 921
 922     } while ((uint8_t*) d - (uint8_t*) a2dp->buffer + written < (ptrdiff_t) u->link_mtu);
 923
 924     /* write it to the fifo */
 925     memset(a2dp->buffer, 0, sizeof(*header) + sizeof(*payload));
 926     payload->frame_count = frame_count;
 927     header->v = 2;
 928     header->pt = 1;
 929     header->sequence_number = htons(a2dp->seq_num++);
 930     header->timestamp = htonl(writing_at / frame_size);
 931     header->ssrc = htonl(1);
 932
 933     p = a2dp->buffer;
 934     left = (uint8_t*) d - (uint8_t*) a2dp->buffer;
 935
 936     for (;;) {
 937         ssize_t l;
 938
 939         l = pa_write(u->stream_fd, p, left, &u->write_type);
 940 /*         pa_log_debug("write: requested %lu bytes; written %li bytes; mtu=%li", (unsigned long) left, (long) l, (unsigned long) u->link_mtu); */
 941
 942         pa_assert(l != 0);
 943
 944         if (l < 0) {
 945             if (errno == EINTR)
 946                 continue;
 947             else {
 948                 pa_log_error("Failed to write data to socket: %s", pa_cstrerror(errno));
 949                 return -1;
 950             }
 951         } else {
 952             pa_assert((size_t) l <= left);
 953
 954             d = (uint8_t*) d + l;
 955             left -= l;
 956
 957             if (left <= 0)
 958                 break;
 959         }
 960     }
 961
 962     return 0;
 963 }
 964
 965 static void thread_func(void *userdata) {
 966     struct userdata *u = userdata;
 967     pa_bool_t do_write = FALSE, writable = FALSE;
 968
 969     pa_assert(u);
 970
 971     pa_log_debug("IO Thread starting up");
 972
 973     if (u->core->realtime_scheduling)
 974         pa_make_realtime(u->core->realtime_priority);
 975
 976     pa_thread_mq_install(&u->thread_mq);
 977     pa_rtpoll_install(u->rtpoll);
 978
 979     pa_smoother_set_time_offset(u->read_smoother, pa_rtclock_usec());
 980
 981     for (;;) {
 982         struct pollfd *pollfd;
 983         int ret;
 984
 985         pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
 986
 987         if (u->source && PA_SOURCE_IS_LINKED(u->source->thread_info.state)) {
 988
 989             if (pollfd->revents & POLLIN) {
 990
 991                 if (hsp_process_push(u) < 0)
 992                     goto fail;
 993
 994                 /* We just read something, so we are supposed to write something, too */
 995                 do_write = TRUE;
 996             }
 997         }
 998
 999         if (u->sink && PA_SINK_IS_LINKED(u->sink->thread_info.state)) {
1000
1001             if (u->sink->thread_info.rewind_requested)
1002                 pa_sink_process_rewind(u->sink, 0);
1003
1004             if (pollfd->revents & POLLOUT)
1005                 writable = TRUE;
1006
1007             if ((!u->source || !PA_SOURCE_IS_LINKED(u->source->thread_info.state)) && !do_write && writable) {
1008                 pa_usec_t time_passed;
1009                 uint64_t should_have_written;
1010
1011                 /* Hmm, there is no input stream we could synchronize
1012                  * to. So let's do things by time */
1013
1014                 time_passed = pa_rtclock_usec() - u->started_at;
1015                 should_have_written = pa_usec_to_bytes(time_passed, &u->sink->sample_spec);
1016
1017                 do_write = u->write_index <= should_have_written ;
1018 /*                 pa_log_debug("Time has come: %s", pa_yes_no(do_write)); */
1019             }
1020
1021             if (writable && do_write) {
1022
1023                 if (u->profile == PROFILE_A2DP) {
1024                     if (a2dp_process_render(u) < 0)
1025                         goto fail;
1026                 } else {
1027                     if (hsp_process_render(u) < 0)
1028                         goto fail;
1029                 }
1030
1031                 do_write = FALSE;
1032                 writable = FALSE;
1033             }
1034
1035             if ((!u->source || !PA_SOURCE_IS_LINKED(u->source->thread_info.state)) && !do_write) {
1036                 pa_usec_t time_passed, next_write_at, sleep_for;
1037
1038                 /* Hmm, there is no input stream we could synchronize
1039                  * to. So let's estimate when we need to wake up the latest */
1040
1041                 time_passed = pa_rtclock_usec() - u->started_at;
1042                 next_write_at = pa_bytes_to_usec(u->write_index, &u->sink->sample_spec);
1043                 sleep_for = time_passed < next_write_at ? next_write_at - time_passed : 0;
1044
1045 /*                 pa_log("Sleeping for %lu; time passed %lu, next write at %lu", (unsigned long) sleep_for, (unsigned long) time_passed, (unsigned long)next_write_at); */
1046
1047                 pa_rtpoll_set_timer_relative(u->rtpoll, sleep_for);
1048             }
1049         } else
1050             pa_rtpoll_set_timer_disabled(u->rtpoll);
1051
1052         /* Hmm, nothing to do. Let's sleep */
1053         pollfd->events = (short) (((u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state) && !writable) ? POLLOUT : 0) |
1054                                   (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state) ? POLLIN : 0));
1055
1056         if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
1057             goto fail;
1058
1059         if (ret == 0)
1060             goto finish;
1061
1062         pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
1063
1064         if (pollfd->revents & ~(POLLOUT|POLLIN)) {
1065             pa_log_error("FD error.");
1066             goto fail;
1067         }
1068     }
1069
1070 fail:
1071     /* If this was no regular exit from the loop we have to continue processing messages until we receive PA_MESSAGE_SHUTDOWN */
1072     pa_log_debug("IO thread failed");
1073     pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
1074     pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
1075
1076 finish:
1077     pa_log_debug("IO thread shutting down");
1078 }
1079
1080 /* static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *msg, void *userdata) { */
1081 /*     DBusMessageIter arg_i; */
1082 /*     DBusError err; */
1083 /*     const char *value; */
1084 /*     struct userdata *u; */
1085
1086 /*     pa_assert(bus); */
1087 /*     pa_assert(msg); */
1088 /*     pa_assert(userdata); */
1089 /*     u = userdata; */
1090
1091 /*     pa_log_debug("dbus: interface=%s, path=%s, member=%s\n", */
1092 /*                  dbus_message_get_interface(msg), */
1093 /*                  dbus_message_get_path(msg), */
1094 /*                  dbus_message_get_member(msg)); */
1095
1096 /*     dbus_error_init(&err); */
1097
1098 /*    if (!dbus_message_has_path(msg, u->path)) */
1099 /*        goto done; */
1100
1101 /*     if (dbus_message_is_signal(msg, "org.bluez.Headset", "PropertyChanged") || */
1102 /*         dbus_message_is_signal(msg, "org.bluez.AudioSink", "PropertyChanged")) { */
1103
1104 /*         struct device *d; */
1105 /*         const char *profile; */
1106 /*         DBusMessageIter variant_i; */
1107 /*         dbus_uint16_t gain; */
1108
1109 /*         if (!dbus_message_iter_init(msg, &arg_i)) { */
1110 /*             pa_log("dbus: message has no parameters"); */
1111 /*             goto done; */
1112 /*         } */
1113
1114 /*         if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_STRING) { */
1115 /*             pa_log("Property name not a string."); */
1116 /*             goto done; */
1117 /*         } */
1118
1119 /*         dbus_message_iter_get_basic(&arg_i, &value); */
1120
1121 /*         if (!dbus_message_iter_next(&arg_i)) { */
1122 /*             pa_log("Property value missing"); */
1123 /*             goto done; */
1124 /*         } */
1125
1126 /*         if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_VARIANT) { */
1127 /*             pa_log("Property value not a variant."); */
1128 /*             goto done; */
1129 /*         } */
1130
1131 /*         dbus_message_iter_recurse(&arg_i, &variant_i); */
1132
1133 /*         if (dbus_message_iter_get_arg_type(&variant_i) != DBUS_TYPE_UINT16) { */
1134 /*             dbus_message_iter_get_basic(&variant_i, &gain); */
1135
1136 /*             if (pa_streq(value, "SpeakerGain")) { */
1137 /*                 pa_log("spk gain: %d", gain); */
1138 /*                 pa_cvolume_set(&u->sink->virtual_volume, 1, (pa_volume_t) (gain * PA_VOLUME_NORM / 15)); */
1139 /*                 pa_subscription_post(u->sink->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, u->sink->index); */
1140 /*             } else { */
1141 /*                 pa_log("mic gain: %d", gain); */
1142 /*                 if (!u->source) */
1143 /*                     goto done; */
1144
1145 /*                 pa_cvolume_set(&u->source->virtual_volume, 1, (pa_volume_t) (gain * PA_VOLUME_NORM / 15)); */
1146 /*                 pa_subscription_post(u->source->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, u->source->index); */
1147 /*             } */
1148 /*         } */
1149 /*     } */
1150
1151 /* done: */
1152 /*     dbus_error_free(&err); */
1153 /*     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; */
1154 /* } */
1155
1156 /* static int sink_get_volume_cb(pa_sink *s) { */
1157 /*     struct userdata *u = s->userdata; */
1158 /*     pa_assert(u); */
1159
1160 /*     /\* refresh? *\/ */
1161
1162 /*     return 0; */
1163 /* } */
1164
1165 /* static int source_get_volume_cb(pa_source *s) { */
1166 /*     struct userdata *u = s->userdata; */
1167 /*     pa_assert(u); */
1168
1169 /*     /\* refresh? *\/ */
1170
1171 /*     return 0; */
1172 /* } */
1173
1174 /* static int sink_set_volume_cb(pa_sink *s) { */
1175 /*     DBusError e; */
1176 /*     DBusMessage *m, *r; */
1177 /*     DBusMessageIter it, itvar; */
1178 /*     dbus_uint16_t vol; */
1179 /*     const char *spkgain = "SpeakerGain"; */
1180 /*     struct userdata *u = s->userdata; */
1181 /*     pa_assert(u); */
1182
1183 /*     dbus_error_init(&e); */
1184
1185 /*     vol = ((float) pa_cvolume_max(&s->virtual_volume) / PA_VOLUME_NORM) * 15; */
1186 /*     pa_log_debug("set headset volume: %d", vol); */
1187
1188 /*     pa_assert_se(m = dbus_message_new_method_call("org.bluez", u->path, "org.bluez.Headset", "SetProperty")); */
1189 /*     dbus_message_iter_init_append(m, &it); */
1190 /*     dbus_message_iter_append_basic(&it, DBUS_TYPE_STRING, &spkgain); */
1191 /*     dbus_message_iter_open_container(&it, DBUS_TYPE_VARIANT, DBUS_TYPE_UINT16_AS_STRING, &itvar); */
1192 /*     dbus_message_iter_append_basic(&itvar, DBUS_TYPE_UINT16, &vol); */
1193 /*     dbus_message_iter_close_container(&it, &itvar); */
1194
1195 /*     r = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u->conn), m, -1, &e); */
1196
1197 /* finish: */
1198 /*     if (m) */
1199 /*         dbus_message_unref(m); */
1200 /*     if (r) */
1201 /*         dbus_message_unref(r); */
1202
1203 /*     dbus_error_free(&e); */
1204
1205 /*     return 0; */
1206 /* } */
1207
1208 /* static int source_set_volume_cb(pa_source *s) { */
1209 /*     dbus_uint16_t vol; */
1210 /*     struct userdata *u = s->userdata; */
1211 /*     pa_assert(u); */
1212
1213 /*     vol = ((float)pa_cvolume_max(&s->virtual_volume) / PA_VOLUME_NORM) * 15; */
1214
1215 /*     pa_log_debug("set headset mic volume: %d (not implemented yet)", vol); */
1216
1217 /*     return 0; */
1218 /* } */
1219
1220 static char *get_name(const char *type, pa_modargs *ma, const char *device_id, pa_bool_t *namereg_fail) {
1221     char *t;
1222     const char *n;
1223
1224     pa_assert(type);
1225     pa_assert(ma);
1226     pa_assert(device_id);
1227     pa_assert(namereg_fail);
1228
1229     t = pa_sprintf_malloc("%s_name", type);
1230     n = pa_modargs_get_value(ma, t, NULL);
1231     pa_xfree(t);
1232
1233     if (n) {
1234         *namereg_fail = TRUE;
1235         return pa_xstrdup(n);
1236     }
1237
1238     if ((n = pa_modargs_get_value(ma, "name", NULL)))
1239         *namereg_fail = TRUE;
1240     else {
1241         n = device_id;
1242         *namereg_fail = FALSE;
1243     }
1244
1245     return pa_sprintf_malloc("bluez_%s.%s", type, n);
1246 }
1247
1248 #define USE_SCO_OVER_PCM(u) (u->profile == PROFILE_HSP && (u->hsp.sco_sink && u->hsp.sco_source))
1249
1250 static void sco_over_pcm_state_update(struct userdata *u) {
1251     pa_assert(u);
1252
1253     if (PA_SINK_IS_OPENED(pa_sink_get_state(u->hsp.sco_sink)) ||
1254         PA_SOURCE_IS_OPENED(pa_source_get_state(u->hsp.sco_source))) {
1255
1256         if (u->service_fd > 0)
1257             return;
1258
1259         pa_log_debug("Resuming SCO over PCM");
1260         if ((init_bt(u) < 0) || (init_profile(u) < 0))
1261             pa_log("Can't resume SCO over PCM");
1262
1263     } else {
1264
1265         if (u->service_fd <= 0)
1266             return;
1267
1268         pa_log_debug("Closing SCO over PCM");
1269         pa_close(u->service_fd);
1270         u->service_fd = 0;
1271
1272     }
1273 }
1274
1275 static pa_hook_result_t sink_state_changed_cb(pa_core *c, pa_sink *s, struct userdata *u) {
1276     pa_assert(c);
1277     pa_sink_assert_ref(s);
1278     pa_assert(u);
1279
1280     if (s != u->hsp.sco_sink)
1281         return PA_HOOK_OK;
1282
1283     sco_over_pcm_state_update(u);
1284
1285     return PA_HOOK_OK;
1286 }
1287
1288 static pa_hook_result_t source_state_changed_cb(pa_core *c, pa_source *s, struct userdata *u) {
1289     pa_assert(c);
1290     pa_source_assert_ref(s);
1291     pa_assert(u);
1292
1293     if (s != u->hsp.sco_source)
1294         return PA_HOOK_OK;
1295
1296     sco_over_pcm_state_update(u);
1297
1298     return PA_HOOK_OK;
1299 }
1300
1301 static int add_sink(struct userdata *u) {
1302
1303     if (USE_SCO_OVER_PCM(u)) {
1304         pa_proplist *p;
1305
1306         u->sink = u->hsp.sco_sink;
1307         u->sink->card = u->card; /* FIXME! */
1308         p = pa_proplist_new();
1309         pa_proplist_sets(p, "bluetooth.protocol", "sco");
1310         pa_proplist_update(u->sink->proplist, PA_UPDATE_MERGE, p);
1311         pa_proplist_free(p);
1312
1313         if (!u->hsp.sink_state_changed_slot)
1314             u->hsp.sink_state_changed_slot = pa_hook_connect(&u->core->hooks[PA_CORE_HOOK_SINK_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) sink_state_changed_cb, u);
1315
1316     } else {
1317         pa_sink_new_data data;
1318         pa_bool_t b;
1319
1320         pa_sink_new_data_init(&data);
1321         data.driver = __FILE__;
1322         data.module = u->module;
1323         pa_sink_new_data_set_sample_spec(&data, &u->sample_spec);
1324         pa_proplist_sets(data.proplist, "bluetooth.protocol", u->profile == PROFILE_A2DP ? "a2dp" : "sco");
1325         data.card = u->card;
1326         data.name = get_name("sink", u->modargs, u->device->address, &b);
1327         data.namereg_fail = b;
1328
1329         u->sink = pa_sink_new(u->core, &data, PA_SINK_HARDWARE|PA_SINK_LATENCY);
1330         pa_sink_new_data_done(&data);
1331
1332         if (!u->sink) {
1333             pa_log_error("Failed to create sink");
1334             return -1;
1335         }
1336
1337         u->sink->userdata = u;
1338         u->sink->parent.process_msg = sink_process_msg;
1339
1340         pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
1341         pa_sink_set_rtpoll(u->sink, u->rtpoll);
1342     }
1343
1344 /*     u->sink->get_volume = sink_get_volume_cb; */
1345 /*     u->sink->set_volume = sink_set_volume_cb; */
1346
1347     return 0;
1348 }
1349
1350 static int add_source(struct userdata *u) {
1351     pa_proplist *p;
1352
1353     if (USE_SCO_OVER_PCM(u)) {
1354         u->source = u->hsp.sco_source;
1355         u->source->card = u->card; /* FIXME! */
1356         p = pa_proplist_new();
1357         pa_proplist_sets(p, "bluetooth.protocol", "sco");
1358         pa_proplist_update(u->source->proplist, PA_UPDATE_MERGE, p);
1359         pa_proplist_free(p);
1360
1361         if (!u->hsp.source_state_changed_slot)
1362             u->hsp.source_state_changed_slot = pa_hook_connect(&u->core->hooks[PA_CORE_HOOK_SOURCE_STATE_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) source_state_changed_cb, u);
1363
1364     } else {
1365         pa_source_new_data data;
1366         pa_bool_t b;
1367
1368         pa_source_new_data_init(&data);
1369         data.driver = __FILE__;
1370         data.module = u->module;
1371         pa_source_new_data_set_sample_spec(&data, &u->sample_spec);
1372         pa_proplist_sets(data.proplist, "bluetooth.protocol", u->profile == PROFILE_A2DP ? "a2dp" : "sco");
1373         data.card = u->card;
1374         data.name = get_name("source", u->modargs, u->device->address, &b);
1375         data.namereg_fail = b;
1376
1377         u->source = pa_source_new(u->core, &data, PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY);
1378         pa_source_new_data_done(&data);
1379
1380         if (!u->source) {
1381             pa_log_error("Failed to create source");
1382             return -1;
1383         }
1384
1385         u->source->userdata = u;
1386         u->source->parent.process_msg = source_process_msg;
1387
1388         pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
1389         pa_source_set_rtpoll(u->source, u->rtpoll);
1390     }
1391
1392 /*     u->source->get_volume = source_get_volume_cb; */
1393 /*     u->source->set_volume = source_set_volume_cb; */
1394
1395     p = pa_proplist_new();
1396     pa_proplist_sets(p, "bluetooth.nrec", pa_yes_no(u->hsp.pcm_capabilities.flags & BT_PCM_FLAG_NREC));
1397     pa_proplist_update(u->source->proplist, PA_UPDATE_MERGE, p);
1398     pa_proplist_free(p);
1399
1400     return 0;
1401 }
1402
1403 static int init_bt(struct userdata *u) {
1404     pa_assert(u);
1405
1406     /* shutdown bt */
1407     if (u->stream_fd >= 0) {
1408         pa_close(u->stream_fd);
1409         u->stream_fd = -1;
1410     }
1411
1412     if (u->service_fd >= 0) {
1413         pa_close(u->service_fd);
1414         u->service_fd = -1;
1415     }
1416
1417     u->write_type = u->read_type = 0;
1418
1419     /* connect to the bluez audio service */
1420     if ((u->service_fd = bt_audio_service_open()) < 0) {
1421         pa_log_error("Couldn't connect to bluetooth audio service");
1422         return -1;
1423     }
1424     pa_log_debug("Connected to the bluetooth audio service");
1425
1426     return 0;
1427 }
1428
1429 static int setup_bt(struct userdata *u) {
1430     pa_assert(u);
1431
1432     if (get_caps(u) < 0)
1433         return -1;
1434
1435     pa_log_debug("Got device capabilities");
1436
1437     if (set_conf(u) < 0)
1438         return -1;
1439
1440     pa_log_debug("Connection to the device configured");
1441
1442     if (USE_SCO_OVER_PCM(u)) {
1443         pa_log_debug("Configured to use SCO over PCM");
1444         return 0;
1445     }
1446
1447     if (setup_stream_fd(u) < 0)
1448         return -1;
1449
1450     pa_log_debug("Got the stream socket");
1451
1452     return 0;
1453 }
1454
1455 static int init_profile(struct userdata *u) {
1456     int r = 0;
1457     pa_assert(u);
1458
1459     if (setup_bt(u) < 0)
1460         return -1;
1461
1462     if (u->profile == PROFILE_A2DP ||
1463         u->profile == PROFILE_HSP)
1464         if (add_sink(u) < 0)
1465             r = -1;
1466
1467     if (u->profile == PROFILE_HSP)
1468         if (add_source(u) < 0)
1469             r = -1;
1470
1471     return r;
1472 }
1473
1474 static void stop_thread(struct userdata *u) {
1475     pa_assert(u);
1476
1477     if (u->thread) {
1478         pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
1479         pa_thread_free(u->thread);
1480         u->thread = NULL;
1481     }
1482
1483     if (u->rtpoll_item) {
1484         pa_rtpoll_item_free(u->rtpoll_item);
1485         u->rtpoll_item = NULL;
1486     }
1487
1488     if (u->hsp.sink_state_changed_slot) {
1489         pa_hook_slot_free(u->hsp.sink_state_changed_slot);
1490         u->hsp.sink_state_changed_slot = NULL;
1491     }
1492
1493     if (u->hsp.source_state_changed_slot) {
1494         pa_hook_slot_free(u->hsp.source_state_changed_slot);
1495         u->hsp.source_state_changed_slot = NULL;
1496     }
1497
1498     if (u->sink) {
1499         pa_sink_unref(u->sink);
1500         u->sink = NULL;
1501     }
1502
1503     if (u->source) {
1504         pa_source_unref(u->source);
1505         u->source = NULL;
1506     }
1507 }
1508
1509 static int start_thread(struct userdata *u) {
1510     struct pollfd *pollfd;
1511
1512     pa_assert(u);
1513     pa_assert(!u->thread);
1514     pa_assert(!u->rtpoll_item);
1515
1516     if (USE_SCO_OVER_PCM(u)) {
1517         pa_sink_ref(u->sink);
1518         pa_source_ref(u->source);
1519         return 0;
1520     }
1521
1522     u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
1523     pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
1524     pollfd->fd = u->stream_fd;
1525     pollfd->events = pollfd->revents = 0;
1526
1527     if (!(u->thread = pa_thread_new(thread_func, u))) {
1528         pa_log_error("Failed to create IO thread");
1529         stop_thread(u);
1530         return -1;
1531     }
1532
1533     if (u->sink)
1534         pa_sink_put(u->sink);
1535
1536     if (u->source)
1537         pa_source_put(u->source);
1538
1539     return 0;
1540 }
1541
1542 static int card_set_profile(pa_card *c, pa_card_profile *new_profile) {
1543     struct userdata *u;
1544     enum profile *d;
1545     pa_queue *inputs = NULL, *outputs = NULL;
1546
1547     pa_assert(c);
1548     pa_assert(new_profile);
1549     pa_assert_se(u = c->userdata);
1550
1551     d = PA_CARD_PROFILE_DATA(new_profile);
1552
1553     if (u->sink) {
1554         inputs = pa_sink_move_all_start(u->sink);
1555         if (!USE_SCO_OVER_PCM(u))
1556             pa_sink_unlink(u->sink);
1557     }
1558
1559     if (u->source) {
1560         outputs = pa_source_move_all_start(u->source);
1561         if (!USE_SCO_OVER_PCM(u))
1562             pa_source_unlink(u->source);
1563     }
1564
1565     stop_thread(u);
1566     init_bt(u);
1567
1568     if (u->write_memchunk.memblock) {
1569         pa_memblock_unref(u->write_memchunk.memblock);
1570         pa_memchunk_reset(&u->write_memchunk);
1571     }
1572
1573     u->profile = *d;
1574
1575     /* Reinitialize the sample spec to default with module argument rate */
1576     u->sample_spec = u->module->core->default_sample_spec;
1577     if (pa_modargs_get_value_u32(u->modargs, "rate", &u->sample_spec.rate) < 0 ||
1578         u->sample_spec.rate <= 0 || u->sample_spec.rate > PA_RATE_MAX) {
1579         u->sample_spec = u->module->core->default_sample_spec;
1580     }
1581
1582     init_profile(u);
1583
1584     if (u->sink || u->source)
1585         start_thread(u);
1586
1587     if (inputs) {
1588         if (u->sink)
1589             pa_sink_move_all_finish(u->sink, inputs, FALSE);
1590         else
1591             pa_sink_move_all_fail(inputs);
1592     }
1593
1594     if (outputs) {
1595         if (u->source)
1596             pa_source_move_all_finish(u->source, outputs, FALSE);
1597         else
1598             pa_source_move_all_fail(outputs);
1599     }
1600
1601     return 0;
1602 }
1603
1604 static int add_card(struct userdata *u, const char * default_profile) {
1605     pa_card_new_data data;
1606     pa_bool_t b;
1607     pa_card_profile *p;
1608     enum profile *d;
1609     const char *ff;
1610     char *n;
1611
1612     pa_card_new_data_init(&data);
1613     data.driver = __FILE__;
1614     data.module = u->module;
1615
1616     n = pa_bluetooth_cleanup_name(u->device->name);
1617     pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, n);
1618     pa_xfree(n);
1619     pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->device->address);
1620     pa_proplist_sets(data.proplist, PA_PROP_DEVICE_API, "bluez");
1621     pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "sound");
1622     pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CONNECTOR, "bluetooth");
1623     if ((ff = pa_bluetooth_get_form_factor(u->device->class)))
1624         pa_proplist_sets(data.proplist, PA_PROP_DEVICE_FORM_FACTOR, ff);
1625     pa_proplist_sets(data.proplist, "bluez.path", u->device->path);
1626     pa_proplist_setf(data.proplist, "bluez.class", "0x%06x", (unsigned) u->device->class);
1627     pa_proplist_sets(data.proplist, "bluez.name", u->device->name);
1628     data.name = get_name("card", u->modargs, u->device->address, &b);
1629     data.namereg_fail = b;
1630
1631     data.profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1632
1633     if (u->device->audio_sink_info_valid > 0) {
1634         p = pa_card_profile_new("a2dp", "A2DP Advanced Audio Distribution Profile", sizeof(enum profile));
1635         p->priority = 10;
1636         p->n_sinks = 1;
1637         p->n_sources = 0;
1638         p->max_sink_channels = 2;
1639         p->max_source_channels = 0;
1640
1641         d = PA_CARD_PROFILE_DATA(p);
1642         *d = PROFILE_A2DP;
1643
1644         pa_hashmap_put(data.profiles, p->name, p);
1645     }
1646
1647     if (u->device->headset_info_valid > 0) {
1648         p = pa_card_profile_new("hsp", "HSP/HFP Headset/Hands-Free Profile", sizeof(enum profile));
1649         p->priority = 20;
1650         p->n_sinks = 1;
1651         p->n_sources = 1;
1652         p->max_sink_channels = 1;
1653         p->max_source_channels = 1;
1654
1655         d = PA_CARD_PROFILE_DATA(p);
1656         *d = PROFILE_HSP;
1657
1658         pa_hashmap_put(data.profiles, p->name, p);
1659     }
1660
1661     pa_assert(!pa_hashmap_isempty(data.profiles));
1662
1663     p = pa_card_profile_new("off", "Off", sizeof(enum profile));
1664     d = PA_CARD_PROFILE_DATA(p);
1665     *d = PROFILE_OFF;
1666     pa_hashmap_put(data.profiles, p->name, p);
1667
1668     if (default_profile) {
1669         if (pa_hashmap_get(data.profiles, default_profile))
1670             pa_card_new_data_set_profile(&data, default_profile);
1671         else
1672             pa_log_warn("Profile '%s' not valid or not supported by device.", default_profile);
1673     }
1674
1675     u->card = pa_card_new(u->core, &data);
1676     pa_card_new_data_done(&data);
1677
1678     if (!u->card) {
1679         pa_log("Failed to allocate card.");
1680         return -1;
1681     }
1682
1683     u->card->userdata = u;
1684     u->card->set_profile = card_set_profile;
1685
1686     d = PA_CARD_PROFILE_DATA(u->card->active_profile);
1687     u->profile = *d;
1688
1689     return 0;
1690 }
1691
1692 static int setup_dbus(struct userdata *u) {
1693     DBusError error;
1694
1695     dbus_error_init(&error);
1696
1697     u->connection = pa_dbus_bus_get(u->core, DBUS_BUS_SYSTEM, &error);
1698     if (dbus_error_is_set(&error) || (!u->connection)) {
1699         pa_log("Failed to get D-Bus connection: %s", error.message);
1700         dbus_error_free(&error);
1701         return -1;
1702     }
1703
1704     return 0;
1705 }
1706
1707 static int find_device(struct userdata *u, const char *address, const char *path) {
1708     pa_assert(u);
1709
1710     if (!address && !path) {
1711         pa_log_error("Failed to get device address/path from module arguments.");
1712         return -1;
1713     }
1714
1715     if (path) {
1716         if (!(u->device = pa_bluetooth_get_device(pa_dbus_connection_get(u->connection), path))) {
1717             pa_log_error("%s is not a valid BlueZ audio device.", path);
1718             return -1;
1719         }
1720
1721         if (address && !(pa_streq(u->device->address, address))) {
1722             pa_log_error("Passed path %s and address %s don't match.", path, address);
1723             return -1;
1724         }
1725     } else {
1726         if (!(u->device = pa_bluetooth_find_device(pa_dbus_connection_get(u->connection), address))) {
1727             pa_log_error("%s is not known.", address);
1728             return -1;
1729         }
1730     }
1731
1732     return 0;
1733 }
1734
1735 int pa__init(pa_module* m) {
1736     pa_modargs *ma;
1737     uint32_t channels;
1738     struct userdata *u;
1739     const char *address, *path;
1740
1741     pa_assert(m);
1742
1743     if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
1744         pa_log_error("Failed to parse module arguments");
1745         goto fail;
1746     }
1747
1748     m->userdata = u = pa_xnew0(struct userdata, 1);
1749     u->module = m;
1750     u->core = m->core;
1751     u->service_fd = -1;
1752     u->stream_fd = -1;
1753     u->read_smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC*2, TRUE, 10);
1754     u->rtpoll = pa_rtpoll_new();
1755     pa_thread_mq_init(&u->thread_mq, u->core->mainloop, u->rtpoll);
1756     u->sample_spec = m->core->default_sample_spec;
1757     u->modargs = ma;
1758
1759     if (pa_modargs_get_value(ma, "sco_sink", NULL) &&
1760         !(u->hsp.sco_sink = pa_namereg_get(m->core, pa_modargs_get_value(ma, "sco_sink", NULL), PA_NAMEREG_SINK))) {
1761         pa_log("SCO sink not found");
1762         goto fail;
1763     }
1764
1765     if (pa_modargs_get_value(ma, "sco_source", NULL) &&
1766         !(u->hsp.sco_source = pa_namereg_get(m->core, pa_modargs_get_value(ma, "sco_source", NULL), PA_NAMEREG_SOURCE))) {
1767         pa_log("SCO source not found");
1768         goto fail;
1769     }
1770
1771     if (pa_modargs_get_value_u32(ma, "rate", &u->sample_spec.rate) < 0 ||
1772         u->sample_spec.rate <= 0 || u->sample_spec.rate > PA_RATE_MAX) {
1773         pa_log_error("Failed to get rate from module arguments");
1774         goto fail;
1775     }
1776
1777     channels = u->sample_spec.channels;
1778     if (pa_modargs_get_value_u32(ma, "channels", &channels) < 0 ||
1779         channels <= 0 || channels > PA_CHANNELS_MAX) {
1780         pa_log_error("Failed to get channels from module arguments");
1781         goto fail;
1782     }
1783     u->sample_spec.channels = (uint8_t) channels;
1784
1785     if (setup_dbus(u) < 0)
1786         goto fail;
1787
1788     address = pa_modargs_get_value(ma, "address", NULL);
1789     path = pa_modargs_get_value(ma, "path", NULL);
1790
1791     if (find_device(u, address, path) < 0)
1792         goto fail;
1793
1794     pa_assert(u->device);
1795
1796     /* Add the card structure. This will also initialize the default profile */
1797     if (add_card(u, pa_modargs_get_value(ma, "profile", NULL)) < 0)
1798         goto fail;
1799
1800     /* Connect to the BT service and query capabilities */
1801     if (init_bt(u) < 0)
1802         goto fail;
1803
1804     if (init_profile(u) < 0)
1805         goto fail;
1806
1807 /*     if (u->path) { */
1808 /*         DBusError err; */
1809 /*         dbus_error_init(&err); */
1810 /*         char *t; */
1811
1812
1813 /*         if (!dbus_connection_add_filter(pa_dbus_connection_get(u->conn), filter_cb, u, NULL)) { */
1814 /*             pa_log_error("Failed to add filter function"); */
1815 /*             goto fail; */
1816 /*         } */
1817
1818 /*         if (u->transport == BT_CAPABILITIES_TRANSPORT_SCO || */
1819 /*             u->transport == BT_CAPABILITIES_TRANSPORT_ANY) { */
1820 /*             t = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged',path='%s'", u->path); */
1821 /*             dbus_bus_add_match(pa_dbus_connection_get(u->conn), t, &err); */
1822 /*             pa_xfree(t); */
1823
1824 /*             if (dbus_error_is_set(&err)) { */
1825 /*                 pa_log_error("Unable to subscribe to org.bluez.Headset signals: %s: %s", err.name, err.message); */
1826 /*                 goto fail; */
1827 /*             } */
1828 /*         } */
1829
1830 /*         if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP || */
1831 /*             u->transport == BT_CAPABILITIES_TRANSPORT_ANY) { */
1832 /*             t = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged',path='%s'", u->path); */
1833 /*             dbus_bus_add_match(pa_dbus_connection_get(u->conn), t, &err); */
1834 /*             pa_xfree(t); */
1835
1836 /*             if (dbus_error_is_set(&err)) { */
1837 /*                 pa_log_error("Unable to subscribe to org.bluez.AudioSink signals: %s: %s", err.name, err.message); */
1838 /*                 goto fail; */
1839 /*             } */
1840 /*         } */
1841 /*     } */
1842
1843     if (start_thread(u) < 0)
1844         goto fail;
1845
1846     return 0;
1847
1848 fail:
1849     pa__done(m);
1850     return -1;
1851 }
1852
1853 int pa__get_n_used(pa_module *m) {
1854     struct userdata *u;
1855
1856     pa_assert(m);
1857     pa_assert_se(u = m->userdata);
1858
1859     return
1860         (u->sink ? pa_sink_linked_by(u->sink) : 0) +
1861         (u->source ? pa_source_linked_by(u->source) : 0);
1862 }
1863
1864 void pa__done(pa_module *m) {
1865     struct userdata *u;
1866     pa_assert(m);
1867
1868     if (!(u = m->userdata))
1869         return;
1870
1871     if (u->sink && !USE_SCO_OVER_PCM(u))
1872         pa_sink_unlink(u->sink);
1873
1874     if (u->source && !USE_SCO_OVER_PCM(u))
1875         pa_source_unlink(u->source);
1876
1877     stop_thread(u);
1878
1879     if (u->connection) {
1880 /*         DBusError error; */
1881 /*         char *t; */
1882
1883 /*         if (u->transport == BT_CAPABILITIES_TRANSPORT_SCO || */
1884 /*             u->transport == BT_CAPABILITIES_TRANSPORT_ANY) { */
1885
1886 /*             t = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged',path='%s'", u->path); */
1887 /*             dbus_error_init(&error); */
1888 /*             dbus_bus_remove_match(pa_dbus_connection_get(u->conn), t, &error); */
1889 /*             dbus_error_free(&error); */
1890 /*             pa_xfree(t); */
1891 /*         } */
1892
1893 /*         if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP || */
1894 /*             u->transport == BT_CAPABILITIES_TRANSPORT_ANY) { */
1895
1896 /*             t = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged',path='%s'", u->path); */
1897 /*             dbus_error_init(&error); */
1898 /*             dbus_bus_remove_match(pa_dbus_connection_get(u->conn), t, &error); */
1899 /*             dbus_error_free(&error); */
1900 /*             pa_xfree(t); */
1901 /*         } */
1902
1903 /*         dbus_connection_remove_filter(pa_dbus_connection_get(u->conn), filter_cb, u); */
1904         pa_dbus_connection_unref(u->connection);
1905     }
1906
1907     if (u->card)
1908         pa_card_free(u->card);
1909
1910     pa_thread_mq_done(&u->thread_mq);
1911
1912     if (u->rtpoll)
1913         pa_rtpoll_free(u->rtpoll);
1914
1915     if (u->read_smoother)
1916         pa_smoother_free(u->read_smoother);
1917
1918     if (u->stream_fd >= 0)
1919         pa_close(u->stream_fd);
1920
1921     if (u->service_fd >= 0)
1922         pa_close(u->service_fd);
1923
1924     if (u->device)
1925         pa_bluetooth_device_free(u->device);
1926
1927     if (u->write_memchunk.memblock)
1928         pa_memblock_unref(u->write_memchunk.memblock);
1929
1930     if (u->a2dp.buffer)
1931         pa_xfree(u->a2dp.buffer);
1932
1933     sbc_finish(&u->a2dp.sbc);
1934
1935     if (u->modargs)
1936         pa_modargs_free(u->modargs);
1937
1938     pa_xfree(u);
1939 }