2 This file is part of PulseAudio.
4 Copyright 2008 Joao Paulo Rechi Vita
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 published
8 by the Free Software Foundation; either version 2 of the License,
9 or (at your option) any later version.
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.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
29 #include <sys/ioctl.h>
30 #include <linux/sockios.h>
31 #include <arpa/inet.h>
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>
47 #include "../dbus-util.h"
48 #include "module-bluetooth-device-symdef.h"
53 #define DEFAULT_SINK_NAME "bluetooth_sink"
54 #define BUFFER_SIZE 2048
55 #define MAX_BITPOOL 64
56 #define MIN_BITPOOL 2U
58 #define SCO_TXBUFS 0x03
59 #define SCO_RXBUFS 0x04
61 PA_MODULE_AUTHOR("Joao Paulo Rechi Vita");
62 PA_MODULE_DESCRIPTION("Bluetooth audio sink and source");
63 PA_MODULE_VERSION(PACKAGE_VERSION);
64 PA_MODULE_LOAD_ONCE(FALSE);
66 "sink_name=<name of the device> "
67 "address=<address of the device> "
68 "profile=<a2dp|hsp>");
71 sbc_capabilities_t sbc_capabilities;
72 sbc_t sbc; /* Codec data */
73 pa_bool_t sbc_initialized; /* Keep track if the encoder is initialized */
74 size_t codesize; /* SBC codesize */
75 unsigned samples; /* Number of encoded samples */
76 uint8_t buffer[BUFFER_SIZE]; /* Codec transfer buffer */
77 size_t count; /* Codec transfer buffer counter */
79 unsigned total_samples; /* Cumulative number of codec samples */
80 uint16_t seq_num; /* Cumulative packet sequence */
81 unsigned frame_count; /* Current frames in buffer*/
89 pa_thread_mq thread_mq;
91 pa_rtpoll_item *rtpoll_item;
95 pa_smoother *smoother;
114 static const char* const valid_modargs[] = {
123 static int bt_audioservice_send(int sk, const bt_audio_msg_header_t *msg) {
125 const char *type, *name;
127 type = bt_audio_strtype(msg->type);
128 name = bt_audio_strname(msg->name);
129 pa_log_debug("sending: %s -> %s", type, name);
130 if (send(sk, msg, BT_SUGGESTED_BUFFER_SIZE, 0) > 0)
134 pa_log_error("Error sending data to audio service: %s(%d)", pa_cstrerror(errno), errno);
139 static int bt_audioservice_recv(int sk, bt_audio_msg_header_t *inmsg, uint16_t expected_length) {
141 const char *type, *name;
143 pa_log_debug("trying to receive msg from audio service...");
144 if (recv(sk, inmsg, expected_length ? : BT_SUGGESTED_BUFFER_SIZE, 0) > 0) {
145 type = bt_audio_strtype(inmsg->type);
146 name = bt_audio_strname(inmsg->name);
148 pa_log_debug("Received: %s <- %s", type, name);
153 pa_log_error("Bogus message type %d name %d received from audio service",
154 inmsg->type, inmsg->name);
159 pa_log_error("Error receiving data from audio service: %s(%d)", pa_cstrerror(errno), errno);
165 static int bt_audioservice_expect(int sk, bt_audio_msg_header_t *rsp, uint8_t expected_name, uint16_t expected_length) {
166 int e = bt_audioservice_recv(sk, rsp, expected_length);
169 if (rsp->name != expected_name) {
171 pa_log_error("Bogus message %s received while %s was expected",
172 bt_audio_strname(rsp->name),
173 bt_audio_strname(expected_name));
177 if (rsp->type == BT_ERROR) {
178 bt_audio_error_t *error = (void *) rsp;
179 pa_log_error("%s failed : %s(%d)", bt_audio_strname(rsp->name), pa_cstrerror(error->posix_errno), error->posix_errno);
180 return -error->posix_errno;
186 static int bt_parsecaps(struct userdata *u, struct bt_get_capabilities_rsp *rsp) {
187 uint16_t bytes_left = rsp->h.length - sizeof(*rsp);
188 codec_capabilities_t *codec = (void *) rsp->data;
190 u->transport = codec->transport;
192 if (codec->transport != BT_CAPABILITIES_TRANSPORT_A2DP)
195 while (bytes_left > 0) {
196 if (codec->type == BT_A2DP_CODEC_SBC)
199 bytes_left -= codec->length;
200 codec = (void *) (codec + codec->length);
203 if (bytes_left <= 0 || codec->length != sizeof(u->a2dp.sbc_capabilities))
206 memcpy(&u->a2dp.sbc_capabilities, codec, codec->length);
211 static int bt_getcaps(struct userdata *u) {
214 bt_audio_msg_header_t rsp;
215 struct bt_get_capabilities_req getcaps_req;
216 struct bt_get_capabilities_rsp getcaps_rsp;
217 uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
220 memset(msg.buf, 0, BT_SUGGESTED_BUFFER_SIZE);
221 msg.getcaps_req.h.type = BT_REQUEST;
222 msg.getcaps_req.h.name = BT_GET_CAPABILITIES;
223 msg.getcaps_req.h.length = sizeof(msg.getcaps_req);
225 strncpy(msg.getcaps_req.device, u->addr, 18);
226 if (strcasecmp(u->profile, "a2dp") == 0)
227 msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_A2DP;
228 else if (strcasecmp(u->profile, "hsp") == 0)
229 msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_SCO;
231 pa_log_error("Invalid profile argument: %s", u->profile);
234 msg.getcaps_req.flags = BT_FLAG_AUTOCONNECT;
236 e = bt_audioservice_send(u->audioservice_fd, &msg.getcaps_req.h);
238 pa_log_error("Failed to send GETCAPABILITIES_REQ");
242 e = bt_audioservice_expect(u->audioservice_fd, &msg.rsp, BT_GET_CAPABILITIES, 0);
244 pa_log_error("Failed to expect for GETCAPABILITIES_RSP");
248 return bt_parsecaps(u, &msg.getcaps_rsp);
251 static uint8_t default_bitpool(uint8_t freq, uint8_t mode) {
253 case BT_SBC_SAMPLING_FREQ_16000:
254 case BT_SBC_SAMPLING_FREQ_32000:
256 case BT_SBC_SAMPLING_FREQ_44100:
258 case BT_A2DP_CHANNEL_MODE_MONO:
259 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
261 case BT_A2DP_CHANNEL_MODE_STEREO:
262 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
265 pa_log_warn("Invalid channel mode %u", mode);
268 case BT_SBC_SAMPLING_FREQ_48000:
270 case BT_A2DP_CHANNEL_MODE_MONO:
271 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
273 case BT_A2DP_CHANNEL_MODE_STEREO:
274 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
277 pa_log_warn("Invalid channel mode %u", mode);
281 pa_log_warn("Invalid sampling freq %u", freq);
286 static int bt_a2dp_init(struct userdata *u) {
287 sbc_capabilities_t *cap = &u->a2dp.sbc_capabilities;
288 uint8_t max_bitpool, min_bitpool;
291 static const struct {
295 { 16000U, BT_SBC_SAMPLING_FREQ_16000 },
296 { 32000U, BT_SBC_SAMPLING_FREQ_32000 },
297 { 44100U, BT_SBC_SAMPLING_FREQ_44100 },
298 { 48000U, BT_SBC_SAMPLING_FREQ_48000 }
301 /* Find the lowest freq that is at least as high as the requested
303 for (i = 0; i < PA_ELEMENTSOF(freq_table); i++)
304 if (freq_table[i].rate >= u->ss.rate || i == PA_ELEMENTSOF(freq_table)-1 ) {
305 u->ss.rate = freq_table[i].rate;
306 cap->frequency = freq_table[i].cap;
310 if (u->ss.channels >= 2) {
311 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
312 cap->channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
313 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
314 cap->channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
315 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
316 cap->channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
320 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
321 cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
324 if (!cap->channel_mode) {
325 pa_log_error("No supported channel modes");
329 if (cap->block_length & BT_A2DP_BLOCK_LENGTH_16)
330 cap->block_length = BT_A2DP_BLOCK_LENGTH_16;
331 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_12)
332 cap->block_length = BT_A2DP_BLOCK_LENGTH_12;
333 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_8)
334 cap->block_length = BT_A2DP_BLOCK_LENGTH_8;
335 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_4)
336 cap->block_length = BT_A2DP_BLOCK_LENGTH_4;
338 pa_log_error("No supported block lengths");
342 if (cap->subbands & BT_A2DP_SUBBANDS_8)
343 cap->subbands = BT_A2DP_SUBBANDS_8;
344 else if (cap->subbands & BT_A2DP_SUBBANDS_4)
345 cap->subbands = BT_A2DP_SUBBANDS_4;
347 pa_log_error("No supported subbands");
351 if (cap->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS)
352 cap->allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
353 else if (cap->allocation_method & BT_A2DP_ALLOCATION_SNR)
354 cap->allocation_method = BT_A2DP_ALLOCATION_SNR;
356 min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
357 max_bitpool = (uint8_t) PA_MIN(default_bitpool(cap->frequency, cap->channel_mode), cap->max_bitpool);
359 cap->min_bitpool = (uint8_t) min_bitpool;
360 cap->max_bitpool = (uint8_t) max_bitpool;
365 static void bt_a2dp_setup(struct bt_a2dp *a2dp) {
366 sbc_capabilities_t active_capabilities = a2dp->sbc_capabilities;
368 if (a2dp->sbc_initialized)
369 sbc_reinit(&a2dp->sbc, 0);
371 sbc_init(&a2dp->sbc, 0);
372 a2dp->sbc_initialized = TRUE;
374 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_16000)
375 a2dp->sbc.frequency = SBC_FREQ_16000;
377 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_32000)
378 a2dp->sbc.frequency = SBC_FREQ_32000;
380 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_44100)
381 a2dp->sbc.frequency = SBC_FREQ_44100;
383 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_48000)
384 a2dp->sbc.frequency = SBC_FREQ_48000;
386 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
387 a2dp->sbc.mode = SBC_MODE_MONO;
389 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
390 a2dp->sbc.mode = SBC_MODE_DUAL_CHANNEL;
392 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
393 a2dp->sbc.mode = SBC_MODE_STEREO;
395 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
396 a2dp->sbc.mode = SBC_MODE_JOINT_STEREO;
398 a2dp->sbc.allocation = (uint8_t) (active_capabilities.allocation_method == BT_A2DP_ALLOCATION_SNR ? SBC_AM_SNR : SBC_AM_LOUDNESS);
400 switch (active_capabilities.subbands) {
401 case BT_A2DP_SUBBANDS_4:
402 a2dp->sbc.subbands = SBC_SB_4;
404 case BT_A2DP_SUBBANDS_8:
405 a2dp->sbc.subbands = SBC_SB_8;
409 switch (active_capabilities.block_length) {
410 case BT_A2DP_BLOCK_LENGTH_4:
411 a2dp->sbc.blocks = SBC_BLK_4;
413 case BT_A2DP_BLOCK_LENGTH_8:
414 a2dp->sbc.blocks = SBC_BLK_8;
416 case BT_A2DP_BLOCK_LENGTH_12:
417 a2dp->sbc.blocks = SBC_BLK_12;
419 case BT_A2DP_BLOCK_LENGTH_16:
420 a2dp->sbc.blocks = SBC_BLK_16;
424 a2dp->sbc.bitpool = active_capabilities.max_bitpool;
425 a2dp->codesize = (uint16_t) sbc_get_codesize(&a2dp->sbc);
426 a2dp->count = sizeof(struct rtp_header) + sizeof(struct rtp_payload);
429 static int bt_setconf(struct userdata *u) {
432 bt_audio_msg_header_t rsp;
433 struct bt_set_configuration_req setconf_req;
434 struct bt_set_configuration_rsp setconf_rsp;
435 uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
438 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
441 pa_log_error("a2dp_init error");
444 u->ss.format = PA_SAMPLE_S16LE;
447 u->ss.format = PA_SAMPLE_U8;
449 memset(msg.buf, 0, BT_SUGGESTED_BUFFER_SIZE);
450 msg.setconf_req.h.type = BT_REQUEST;
451 msg.setconf_req.h.name = BT_SET_CONFIGURATION;
452 msg.setconf_req.h.length = sizeof(msg.setconf_req);
454 strncpy(msg.setconf_req.device, u->addr, 18);
455 msg.setconf_req.codec.transport = u->transport;
456 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP)
457 memcpy(&msg.setconf_req.codec, &u->a2dp.sbc_capabilities,
458 sizeof(u->a2dp.sbc_capabilities));
459 msg.setconf_req.access_mode = BT_CAPABILITIES_ACCESS_MODE_WRITE;
461 e = bt_audioservice_send(u->audioservice_fd, &msg.setconf_req.h);
463 pa_log_error("Failed to send BT_SETCONFIGURATION_REQ");
467 e = bt_audioservice_expect(u->audioservice_fd, &msg.rsp, BT_SET_CONFIGURATION, sizeof(msg.setconf_rsp));
469 pa_log_error("Failed to expect BT_SETCONFIGURATION_RSP");
473 u->transport = msg.setconf_rsp.transport;
474 u->strtransport = (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP ? pa_xstrdup("A2DP") : pa_xstrdup("SCO"));
475 u->link_mtu = msg.setconf_rsp.link_mtu;
477 /* setup SBC encoder now we agree on parameters */
478 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
479 bt_a2dp_setup(&u->a2dp);
480 u->block_size = u->a2dp.codesize;
481 pa_log_info("sbc parameters:\n\tallocation=%u\n\tsubbands=%u\n\tblocks=%u\n\tbitpool=%u\n",
482 u->a2dp.sbc.allocation, u->a2dp.sbc.subbands, u->a2dp.sbc.blocks, u->a2dp.sbc.bitpool);
485 u->block_size = u->link_mtu;
490 static int bt_getstreamfd(struct userdata *u) {
492 // uint32_t period_count = io->buffer_size / io->period_size;
494 bt_audio_msg_header_t rsp;
495 struct bt_start_stream_req start_req;
496 struct bt_start_stream_rsp start_rsp;
497 struct bt_new_stream_ind streamfd_ind;
498 uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
501 memset(msg.buf, 0, BT_SUGGESTED_BUFFER_SIZE);
502 msg.start_req.h.type = BT_REQUEST;
503 msg.start_req.h.name = BT_START_STREAM;
504 msg.start_req.h.length = sizeof(msg.start_req);
506 e = bt_audioservice_send(u->audioservice_fd, &msg.start_req.h);
508 pa_log_error("Failed to send BT_STREAMSTART_REQ");
512 e = bt_audioservice_expect(u->audioservice_fd, &msg.rsp, BT_START_STREAM, sizeof(msg.start_rsp));
514 pa_log_error("Failed to expect BT_STREAMSTART_RSP");
518 e = bt_audioservice_expect(u->audioservice_fd, &msg.rsp, BT_NEW_STREAM, sizeof(msg.streamfd_ind));
520 pa_log_error("Failed to expect BT_STREAMFD_IND");
524 if (u->stream_fd >= 0)
525 pa_close(u->stream_fd);
527 u->stream_fd = bt_audio_service_get_data_fd(u->audioservice_fd);
528 if (u->stream_fd < 0) {
529 pa_log_error("Failed to get data fd: %s (%d)",pa_cstrerror(errno), errno);
533 // if (setsockopt(u->stream_fd, SOL_SCO, SCO_TXBUFS, &period_count, sizeof(period_count)) == 0)
535 // if (setsockopt(u->stream_fd, SOL_SCO, SO_SNDBUF, &period_count, sizeof(period_count)) == 0)
537 // /* FIXME : handle error codes */
538 pa_make_fd_nonblock(u->stream_fd);
539 // pa_make_socket_low_delay(u->stream_fd);
544 static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
545 struct userdata *u = PA_SINK(o)->userdata;
547 pa_log_debug("got message: %d", code);
550 case PA_SINK_MESSAGE_SET_STATE:
551 switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
552 case PA_SINK_SUSPENDED:
553 pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
554 pa_smoother_pause(u->smoother, pa_rtclock_usec());
557 case PA_SINK_RUNNING:
558 if (u->sink->thread_info.state == PA_SINK_SUSPENDED)
559 pa_smoother_resume(u->smoother, pa_rtclock_usec());
561 case PA_SINK_UNLINKED:
567 case PA_SINK_MESSAGE_GET_LATENCY: {
569 /* r = pa_smoother_get(u->smoother, pa_rtclock_usec()); */
570 /* /\* w = pa_bytes_to_usec(u->offset + (uint64_t) u->memchunk.length, &u->sink->sample_spec); *\/ */
571 *((pa_usec_t*) data) = /*w > r ? w - r :*/ 0;
577 return pa_sink_process_msg(o, code, data, offset, chunk);
580 static int sco_process_render(struct userdata *u) {
583 pa_memchunk memchunk;
585 pa_sink_render_full(u->sink, u->block_size, &memchunk);
587 p = pa_memblock_acquire(memchunk.memblock);
592 l = pa_loop_write(u->stream_fd, (uint8_t*) p, memchunk.length, NULL);
593 pa_log_debug("Memblock written to socket: %li bytes", (long) l);
598 u->offset += (uint64_t) l;
603 pa_log_debug("EINTR");
604 else if (errno == EAGAIN)
605 pa_log_debug("EAGAIN");
607 pa_log_error("Failed to write data to FIFO: %s", pa_cstrerror(errno));
613 pa_memblock_release(memchunk.memblock);
614 pa_memblock_unref(memchunk.memblock);
619 static int a2dp_process_render(struct userdata *u) {
622 struct bt_a2dp *a2dp = &u->a2dp;
623 struct rtp_header *header = (void *) a2dp->buffer;
624 struct rtp_payload *payload = (void *) (a2dp->buffer + sizeof(*header));
629 /* Render some data */
630 int frame_size, encoded;
632 pa_memchunk memchunk;
634 pa_sink_render_full(u->sink, u->block_size, &memchunk);
636 p = pa_memblock_acquire(memchunk.memblock);
638 frame_size = (uint16_t) sbc_get_frame_length(&a2dp->sbc);
639 pa_log_debug("SBC frame_size: %d", frame_size);
641 encoded = sbc_encode(&a2dp->sbc, p, (int) a2dp->codesize, a2dp->buffer + a2dp->count,
642 (int) (sizeof(a2dp->buffer) - a2dp->count), &written);
643 pa_log_debug("SBC: encoded: %d; written: %d", encoded, written);
645 pa_memblock_release(memchunk.memblock);
646 pa_memblock_unref(memchunk.memblock);
649 pa_log_error("SBC encoding error (%d)", encoded);
653 a2dp->count += (size_t) written;
655 a2dp->samples += (unsigned) encoded / frame_size;
656 a2dp->total_samples += (unsigned) encoded / frame_size;
658 } while (a2dp->count + (size_t) written <= u->link_mtu);
660 /* write it to the fifo */
661 memset(a2dp->buffer, 0, sizeof(*header) + sizeof(*payload));
662 payload->frame_count = a2dp->frame_count;
665 header->sequence_number = htons(a2dp->seq_num);
666 header->timestamp = htonl(a2dp->total_samples);
667 header->ssrc = htonl(1);
672 l = pa_loop_write(u->stream_fd, a2dp->buffer, a2dp->count, NULL);
673 pa_log_debug("avdtp_write: requested %lu bytes; written %li bytes", (unsigned long) a2dp->count, (long) l);
681 pa_log_debug("EINTR");
682 else if (errno == EAGAIN)
683 pa_log_debug("EAGAIN");
685 pa_log_error("Failed to write data to FIFO: %s", pa_cstrerror(errno));
690 u->offset += a2dp->codesize*a2dp->frame_count;
692 /* Reset buffer of data to send */
693 a2dp->count = sizeof(struct rtp_header) + sizeof(struct rtp_payload);
694 a2dp->frame_count = 0;
701 static void thread_func(void *userdata) {
702 struct userdata *u = userdata;
706 pa_log_debug("IO Thread starting up");
708 if (u->core->realtime_scheduling)
709 pa_make_realtime(u->core->realtime_priority);
711 pa_thread_mq_install(&u->thread_mq);
712 pa_rtpoll_install(u->rtpoll);
714 pa_smoother_set_time_offset(u->smoother, pa_rtclock_usec());
718 struct pollfd *pollfd;
722 if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
723 if (u->sink->thread_info.rewind_requested)
724 pa_sink_process_rewind(u->sink, 0);
726 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
728 if (PA_SINK_IS_OPENED(u->sink->thread_info.state) && pollfd->revents) {
729 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
730 if ((l = a2dp_process_render(u)) < 0)
733 if ((l = sco_process_render(u)) < 0)
738 /* feed the time smoother */
740 if (ioctl(u->stream_fd, SIOCOUTQ, &l) >= 0 && l > 0)
742 usec = pa_bytes_to_usec(n, &u->sink->sample_spec);
743 if (usec > u->latency)
747 pa_smoother_put(u->smoother, pa_rtclock_usec(), usec);
750 /* Hmm, nothing to do. Let's sleep */
751 pa_log_debug("IO thread going to sleep");
752 pollfd->events = (short) (PA_SINK_IS_OPENED(u->sink->thread_info.state) ? POLLOUT : 0);
753 if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0) {
754 pa_log_error("rtpoll_run < 0");
757 pa_log_debug("IO thread waking up");
760 pa_log_debug("rtpoll_run == 0");
764 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
765 if (pollfd->revents & ~POLLOUT) {
766 pa_log_error("FIFO shutdown.");
772 /* If this was no regular exit from the loop we have to continue processing messages until we receive PA_MESSAGE_SHUTDOWN */
773 pa_log_debug("IO thread failed");
774 pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
775 pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
778 pa_log_debug("IO thread shutting down");
781 int pa__init(pa_module* m) {
785 pa_sink_new_data data;
786 struct pollfd *pollfd;
790 m->userdata = u = pa_xnew0(struct userdata, 1);
793 u->audioservice_fd = -1;
795 u->transport = (uint8_t) -1;
798 u->a2dp.sbc_initialized = FALSE;
799 u->smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC*2, TRUE, 10);
800 u->rtpoll = pa_rtpoll_new();
801 pa_thread_mq_init(&u->thread_mq, u->core->mainloop, u->rtpoll);
802 u->rtpoll_item = NULL;
803 u->ss = m->core->default_sample_spec;
805 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
806 pa_log_error("Failed to parse module arguments");
809 if (!(u->name = pa_xstrdup(pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME)))) {
810 pa_log_error("Failed to get device name from module arguments");
813 if (!(u->addr = pa_xstrdup(pa_modargs_get_value(ma, "address", NULL)))) {
814 pa_log_error("Failed to get device address from module arguments");
817 if (!(u->profile = pa_xstrdup(pa_modargs_get_value(ma, "profile", NULL)))) {
818 pa_log_error("Failed to get profile from module arguments");
821 if (pa_modargs_get_value_u32(ma, "rate", &u->ss.rate) < 0) {
822 pa_log_error("Failed to get rate from module arguments");
826 channels = u->ss.channels;
827 if (pa_modargs_get_value_u32(ma, "channels", &channels) < 0) {
828 pa_log_error("Failed to get channels from module arguments");
831 u->ss.channels = (uint8_t) channels;
833 /* connect to the bluez audio service */
834 u->audioservice_fd = bt_audio_service_open();
835 if (u->audioservice_fd <= 0) {
836 pa_log_error("Couldn't connect to bluetooth audio service");
839 pa_log_debug("Connected to the bluetooth audio service");
841 /* queries device capabilities */
844 pa_log_error("Failed to get device capabilities");
847 pa_log_debug("Got device capabilities");
849 /* configures the connection */
852 pa_log_error("Failed to set config");
855 pa_log_debug("Connection to the device configured");
857 /* gets the device socket */
858 e = bt_getstreamfd(u);
860 pa_log_error("Failed to get stream fd (%d)", e);
863 pa_log_debug("Got the device socket");
866 pa_sink_new_data_init(&data);
867 data.driver = __FILE__;
869 pa_sink_new_data_set_name(&data, u->name);
870 pa_sink_new_data_set_sample_spec(&data, &u->ss);
871 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->name);
872 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Bluetooth %s '%s' (%s)", u->strtransport, u->name, u->addr);
873 pa_proplist_sets(data.proplist, "bluetooth.protocol", u->profile);
874 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_API, "bluez");
875 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_CLASS, "sound");
876 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_CONNECTOR, "bluetooth");
877 /* pa_proplist_setf(data.proplist, PA_PROP_DEVICE_FORM_FACTOR, "headset"); /\*FIXME*\/ */
878 /* pa_proplist_setf(data.proplist, PA_PROP_DEVICE_VENDOR_PRODUCT_ID, "product_id"); /\*FIXME*\/ */
879 /* pa_proplist_setf(data.proplist, PA_PROP_DEVICE_SERIAL, "serial"); /\*FIXME*\/ */
880 u->sink = pa_sink_new(m->core, &data, PA_SINK_HARDWARE|PA_SINK_LATENCY);
881 pa_sink_new_data_done(&data);
883 pa_log_error("Failed to create sink");
886 u->sink->userdata = u;
887 u->sink->parent.process_msg = sink_process_msg;
888 pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
889 pa_sink_set_rtpoll(u->sink, u->rtpoll);
891 u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
892 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
893 pollfd->fd = u->stream_fd;
894 pollfd->events = pollfd->revents = 0;
896 /* start rt thread */
897 if (!(u->thread = pa_thread_new(thread_func, u))) {
898 pa_log_error("Failed to create IO thread");
901 pa_sink_put(u->sink);
914 void pa__done(pa_module *m) {
918 if (!(u = m->userdata))
922 pa_sink_unlink(u->sink);
925 pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
926 pa_thread_free(u->thread);
930 pa_sink_unref(u->sink);
932 pa_thread_mq_done(&u->thread_mq);
935 pa_rtpoll_item_free(u->rtpoll_item);
938 pa_rtpoll_free(u->rtpoll);
941 pa_smoother_free(u->smoother);
945 pa_xfree(u->profile);
946 pa_xfree(u->strtransport);
948 if (u->stream_fd >= 0)
949 pa_close(u->stream_fd);
951 if (u->audioservice_fd >= 0)
952 pa_close(u->audioservice_fd);