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
30 #include <pulse/xmalloc.h>
31 #include <pulse/timeval.h>
32 #include <pulse/sample.h>
33 #include <pulsecore/core-error.h>
34 #include <pulsecore/module.h>
35 #include <pulsecore/modargs.h>
36 #include <pulsecore/thread.h>
37 #include <pulsecore/thread-mq.h>
38 #include <pulsecore/rtpoll.h>
39 #include <pulsecore/time-smoother.h>
40 #include <pulsecore/rtclock.h>
42 #include "dbus-util.h"
43 #include "module-bt-device-symdef.h"
47 #define DEFAULT_SINK_NAME "bt_sink"
48 #define BUFFER_SIZE 2048
49 #define MAX_BITPOOL 64
52 PA_MODULE_AUTHOR("Joao Paulo Rechi Vita");
53 PA_MODULE_DESCRIPTION("Bluetooth audio sink and source");
54 PA_MODULE_VERSION(PACKAGE_VERSION);
55 PA_MODULE_LOAD_ONCE(FALSE);
57 "name=<name of the device> "
58 "addr=<address of the device> "
59 "profile=<a2dp|hsp>");
62 sbc_capabilities_t sbc_capabilities;
63 sbc_t sbc; /* Codec data */
64 int sbc_initialized; /* Keep track if the encoder is initialized */
65 int codesize; /* SBC codesize */
66 int samples; /* Number of encoded samples */
67 uint8_t buffer[BUFFER_SIZE]; /* Codec transfer buffer */
68 int count; /* Codec transfer buffer counter */
70 int nsamples; /* Cumulative number of codec samples */
71 uint16_t seq_num; /* Cumulative packet sequence */
72 int frame_count; /* Current frames in buffer*/
80 pa_thread_mq thread_mq;
82 pa_rtpoll_item *rtpoll_item;
86 pa_smoother *smoother;
108 static const char* const valid_modargs[] = {
117 static int bt_audioservice_send(int sk, const bt_audio_msg_header_t *msg) {
119 pa_log/*_debug*/("sending %s", bt_audio_strmsg(msg->msg_type));
120 if (send(sk, msg, BT_AUDIO_IPC_PACKET_SIZE, 0) > 0)
124 pa_log_error("Error sending data to audio service: %s(%d)", pa_cstrerror(errno), errno);
129 static int bt_audioservice_recv(int sk, bt_audio_msg_header_t *inmsg) {
133 pa_log/*_debug*/("trying to receive msg from audio service...");
134 if (recv(sk, inmsg, BT_AUDIO_IPC_PACKET_SIZE, 0) > 0) {
135 type = bt_audio_strmsg(inmsg->msg_type);
137 pa_log/*_debug*/("Received %s", type);
142 pa_log_error("Bogus message type %d received from audio service", inmsg->msg_type);
147 pa_log_error("Error receiving data from audio service: %s(%d)", pa_cstrerror(errno), errno);
153 static int bt_audioservice_expect(int sk, bt_audio_msg_header_t *rsp_hdr, int expected_type) {
154 int e = bt_audioservice_recv(sk, rsp_hdr);
156 if (rsp_hdr->msg_type != expected_type) {
158 pa_log_error("Bogus message %s received while %s was expected", bt_audio_strmsg(rsp_hdr->msg_type),
159 bt_audio_strmsg(expected_type));
165 static int bt_getcaps(struct userdata *u) {
167 char buf[BT_AUDIO_IPC_PACKET_SIZE];
168 bt_audio_rsp_msg_header_t *rsp_hdr = (void*) buf;
169 struct bt_getcapabilities_req *getcaps_req = (void*) buf;
170 struct bt_getcapabilities_rsp *getcaps_rsp = (void*) buf;
172 memset(getcaps_req, 0, BT_AUDIO_IPC_PACKET_SIZE);
173 getcaps_req->h.msg_type = BT_GETCAPABILITIES_REQ;
174 strncpy(getcaps_req->device, u->addr, 18);
175 if (strcasecmp(u->profile, "a2dp") == 0)
176 getcaps_req->transport = BT_CAPABILITIES_TRANSPORT_A2DP;
177 else if (strcasecmp(u->profile, "hsp") == 0)
178 getcaps_req->transport = BT_CAPABILITIES_TRANSPORT_SCO;
180 pa_log_error("invalid profile argument: %s", u->profile);
183 getcaps_req->flags = 0;
184 getcaps_req->flags |= BT_FLAG_AUTOCONNECT;
186 e = bt_audioservice_send(u->audioservice_fd, &getcaps_req->h);
188 pa_log_error("failed to send GETCAPABILITIES_REQ");
192 e = bt_audioservice_expect(u->audioservice_fd, &rsp_hdr->msg_h, BT_GETCAPABILITIES_RSP);
194 pa_log_error("failed to expect for GETCAPABILITIES_RSP");
197 if (rsp_hdr->posix_errno != 0) {
198 pa_log_error("BT_GETCAPABILITIES failed : %s (%d)", pa_cstrerror(rsp_hdr->posix_errno), rsp_hdr->posix_errno);
199 return -rsp_hdr->posix_errno;
202 if ((u->transport = getcaps_rsp->transport) == BT_CAPABILITIES_TRANSPORT_A2DP)
203 u->a2dp.sbc_capabilities = getcaps_rsp->sbc_capabilities;
208 static uint8_t default_bitpool(uint8_t freq, uint8_t mode) {
210 case BT_SBC_SAMPLING_FREQ_16000:
211 case BT_SBC_SAMPLING_FREQ_32000:
213 case BT_SBC_SAMPLING_FREQ_44100:
215 case BT_A2DP_CHANNEL_MODE_MONO:
216 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
218 case BT_A2DP_CHANNEL_MODE_STEREO:
219 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
222 pa_log_warn("Invalid channel mode %u", mode);
225 case BT_SBC_SAMPLING_FREQ_48000:
227 case BT_A2DP_CHANNEL_MODE_MONO:
228 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
230 case BT_A2DP_CHANNEL_MODE_STEREO:
231 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
234 pa_log_warn("Invalid channel mode %u", mode);
238 pa_log_warn("Invalid sampling freq %u", freq);
243 static int bt_a2dp_init(struct userdata *u) {
244 sbc_capabilities_t *cap = &u->a2dp.sbc_capabilities;
245 unsigned int max_bitpool, min_bitpool, rate, channels;
249 cap->frequency = BT_SBC_SAMPLING_FREQ_48000;
252 cap->frequency = BT_SBC_SAMPLING_FREQ_44100;
255 cap->frequency = BT_SBC_SAMPLING_FREQ_32000;
258 cap->frequency = BT_SBC_SAMPLING_FREQ_16000;
261 pa_log_error("Rate %d not supported", rate);
265 // if (cfg->has_channel_mode)
266 // cap->channel_mode = cfg->channel_mode;
269 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
270 cap->channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
271 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
272 cap->channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
273 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
274 cap->channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
276 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
277 cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
280 if (!cap->channel_mode) {
281 pa_log_error("No supported channel modes");
285 // if (cfg->has_block_length)
286 // cap->block_length = cfg->block_length;
288 if (cap->block_length & BT_A2DP_BLOCK_LENGTH_16)
289 cap->block_length = BT_A2DP_BLOCK_LENGTH_16;
290 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_12)
291 cap->block_length = BT_A2DP_BLOCK_LENGTH_12;
292 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_8)
293 cap->block_length = BT_A2DP_BLOCK_LENGTH_8;
294 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_4)
295 cap->block_length = BT_A2DP_BLOCK_LENGTH_4;
297 pa_log_error("No supported block lengths");
301 // if (cfg->has_subbands)
302 // cap->subbands = cfg->subbands;
303 if (cap->subbands & BT_A2DP_SUBBANDS_8)
304 cap->subbands = BT_A2DP_SUBBANDS_8;
305 else if (cap->subbands & BT_A2DP_SUBBANDS_4)
306 cap->subbands = BT_A2DP_SUBBANDS_4;
308 pa_log_error("No supported subbands");
312 // if (cfg->has_allocation_method)
313 // cap->allocation_method = cfg->allocation_method;
314 if (cap->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS)
315 cap->allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
316 else if (cap->allocation_method & BT_A2DP_ALLOCATION_SNR)
317 cap->allocation_method = BT_A2DP_ALLOCATION_SNR;
319 // if (cfg->has_bitpool)
320 // min_bitpool = max_bitpool = cfg->bitpool;
322 min_bitpool = MAX(MIN_BITPOOL, cap->min_bitpool);
323 max_bitpool = MIN(default_bitpool(cap->frequency, cap->channel_mode), cap->max_bitpool);
326 cap->min_bitpool = min_bitpool;
327 cap->max_bitpool = max_bitpool;
332 static void bt_a2dp_setup(struct bt_a2dp *a2dp) {
333 sbc_capabilities_t active_capabilities = a2dp->sbc_capabilities;
335 if (a2dp->sbc_initialized)
336 sbc_reinit(&a2dp->sbc, 0);
338 sbc_init(&a2dp->sbc, 0);
339 a2dp->sbc_initialized = 1;
341 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_16000)
342 a2dp->sbc.frequency = SBC_FREQ_16000;
344 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_32000)
345 a2dp->sbc.frequency = SBC_FREQ_32000;
347 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_44100)
348 a2dp->sbc.frequency = SBC_FREQ_44100;
350 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_48000)
351 a2dp->sbc.frequency = SBC_FREQ_48000;
353 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
354 a2dp->sbc.mode = SBC_MODE_MONO;
356 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
357 a2dp->sbc.mode = SBC_MODE_DUAL_CHANNEL;
359 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
360 a2dp->sbc.mode = SBC_MODE_STEREO;
362 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
363 a2dp->sbc.mode = SBC_MODE_JOINT_STEREO;
365 a2dp->sbc.allocation = active_capabilities.allocation_method == BT_A2DP_ALLOCATION_SNR ? SBC_AM_SNR : SBC_AM_LOUDNESS;
367 switch (active_capabilities.subbands) {
368 case BT_A2DP_SUBBANDS_4:
369 a2dp->sbc.subbands = SBC_SB_4;
371 case BT_A2DP_SUBBANDS_8:
372 a2dp->sbc.subbands = SBC_SB_8;
376 switch (active_capabilities.block_length) {
377 case BT_A2DP_BLOCK_LENGTH_4:
378 a2dp->sbc.blocks = SBC_BLK_4;
380 case BT_A2DP_BLOCK_LENGTH_8:
381 a2dp->sbc.blocks = SBC_BLK_8;
383 case BT_A2DP_BLOCK_LENGTH_12:
384 a2dp->sbc.blocks = SBC_BLK_12;
386 case BT_A2DP_BLOCK_LENGTH_16:
387 a2dp->sbc.blocks = SBC_BLK_16;
391 a2dp->sbc.bitpool = active_capabilities.max_bitpool;
392 a2dp->codesize = sbc_get_codesize(&a2dp->sbc);
393 // a2dp->count = sizeof(struct rtp_header) + sizeof(struct rtp_payload);
396 static int bt_setconf(struct userdata *u) {
398 char buf[BT_AUDIO_IPC_PACKET_SIZE];
399 bt_audio_rsp_msg_header_t *rsp_hdr = (void*) buf;
400 struct bt_setconfiguration_req *setconf_req = (void*) buf;
401 struct bt_setconfiguration_rsp *setconf_rsp = (void*) buf;
403 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
406 pa_log_error("a2dp_init error");
411 memset(setconf_req, 0, BT_AUDIO_IPC_PACKET_SIZE);
412 setconf_req->h.msg_type = BT_SETCONFIGURATION_REQ;
413 strncpy(setconf_req->device, u->addr, 18);
414 setconf_req->transport = u->transport;
415 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP)
416 setconf_req->sbc_capabilities = u->a2dp.sbc_capabilities;
417 setconf_req->access_mode = BT_CAPABILITIES_ACCESS_MODE_WRITE;
419 e = bt_audioservice_send(u->audioservice_fd, &setconf_req->h);
421 pa_log_error("failed to send BT_SETCONFIGURATION_REQ");
425 e = bt_audioservice_expect(u->audioservice_fd, &rsp_hdr->msg_h, BT_SETCONFIGURATION_RSP);
427 pa_log_error("failed to expect BT_SETCONFIGURATION_RSP");
431 if (rsp_hdr->posix_errno != 0) {
432 pa_log_error("BT_SETCONFIGURATION failed : %s(%d)", pa_cstrerror(rsp_hdr->posix_errno), rsp_hdr->posix_errno);
433 return -rsp_hdr->posix_errno;
436 u->transport = setconf_rsp->transport;
437 u->block_size = u->link_mtu = setconf_rsp->link_mtu;
439 /* setup SBC encoder now we agree on parameters */
440 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
441 bt_a2dp_setup(&u->a2dp);
442 pa_log/*debug*/("\tallocation=%u\n\tsubbands=%u\n\tblocks=%u\n\tbitpool=%u\n",
443 u->a2dp.sbc.allocation, u->a2dp.sbc.subbands, u->a2dp.sbc.blocks, u->a2dp.sbc.bitpool);
449 static int bt_getstreamfd(struct userdata *u) {
451 char buf[BT_AUDIO_IPC_PACKET_SIZE];
452 struct bt_streamstart_req *start_req = (void*) buf;
453 bt_audio_rsp_msg_header_t *rsp_hdr = (void*) buf;
454 struct bt_streamfd_ind *streamfd_ind = (void*) buf;
456 memset(start_req, 0, BT_AUDIO_IPC_PACKET_SIZE);
457 start_req->h.msg_type = BT_STREAMSTART_REQ;
459 e = bt_audioservice_send(u->audioservice_fd, &start_req->h);
461 pa_log_error("failed to send BT_STREAMSTART_REQ");
465 e = bt_audioservice_expect(u->audioservice_fd, &rsp_hdr->msg_h, BT_STREAMSTART_RSP);
467 pa_log_error("failed to expect BT_STREAMSTART_RSP");
471 if (rsp_hdr->posix_errno != 0) {
472 pa_log_error("BT_START failed : %s(%d)", pa_cstrerror(rsp_hdr->posix_errno), rsp_hdr->posix_errno);
473 return -rsp_hdr->posix_errno;
476 e = bt_audioservice_expect(u->audioservice_fd, &streamfd_ind->h, BT_STREAMFD_IND);
478 pa_log_error("failed to expect BT_STREAMFD_IND");
482 if (u->stream_fd >= 0)
483 pa_close(u->stream_fd);
485 u->stream_fd = bt_audio_service_get_data_fd(u->audioservice_fd);
486 if (u->stream_fd < 0) {
487 pa_log_error("failed to get data fd");
491 // if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
492 // opt_name = SO_SNDTIMEO;
493 // if (setsockopt(u->stream_fd, SOL_SOCKET, opt_name, &t, sizeof(t)) < 0) {
494 // pa_log_error("failed to set socket options for A2DP");
499 // opt_name = SCO_TXBUFS;
500 // if (setsockopt(u->stream_fd, SOL_SCO, opt_name, &period_count, sizeof(period_count)) == 0)
502 // opt_name = SO_SNDBUF;
503 // if (setsockopt(u->stream_fd, SOL_SCO, opt_name, &period_count, sizeof(period_count)) == 0)
505 // /* FIXME : handle error codes */
511 static int bt_hw_constraint(struct userdata *u) {
513 u->ss.format = PA_SAMPLE_S16LE;
519 static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
520 struct userdata *u = PA_SINK(o)->userdata;
524 case PA_SINK_MESSAGE_SET_STATE:
525 switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
526 case PA_SINK_SUSPENDED:
527 pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
528 pa_smoother_pause(u->smoother, pa_rtclock_usec());
531 case PA_SINK_RUNNING:
532 if (u->sink->thread_info.state == PA_SINK_SUSPENDED)
533 pa_smoother_resume(u->smoother, pa_rtclock_usec());
535 case PA_SINK_UNLINKED:
541 case PA_SINK_MESSAGE_GET_LATENCY: {
543 r = pa_smoother_get(u->smoother, pa_rtclock_usec());
544 w = pa_bytes_to_usec(u->offset + u->memchunk.length, &u->sink->sample_spec);
545 *((pa_usec_t*) data) = w > r ? w - r : 0;
551 return pa_sink_process_msg(o, code, data, offset, chunk);
554 static void thread_func(void *userdata) {
555 struct userdata *u = userdata;
560 pa_log/*_debug*/("Thread starting up");
562 pa_thread_mq_install(&u->thread_mq);
563 pa_rtpoll_install(u->rtpoll);
565 pa_smoother_set_time_offset(u->smoother, pa_rtclock_usec());
570 if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
571 if (u->sink->thread_info.rewind_requested)
572 pa_sink_process_rewind(u->sink, 0);
574 if (u->rtpoll_item) {
575 struct pollfd *pollfd;
576 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
578 /* Render some data and write it to the fifo */
579 if (PA_SINK_IS_OPENED(u->sink->thread_info.state) && pollfd->revents) {
587 if (u->memchunk.length <= 0)
588 pa_sink_render(u->sink, u->block_size, &u->memchunk);
590 pa_assert(u->memchunk.length > 0);
592 p = pa_memblock_acquire(u->memchunk.memblock);
593 l = pa_write(u->stream_fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, &write_type);
594 pa_memblock_release(u->memchunk.memblock);
602 else if (errno == EAGAIN) {
604 /* OK, we filled all socket buffers up
609 pa_log("Failed to write data to FIFO: %s", pa_cstrerror(errno));
616 u->memchunk.index += l;
617 u->memchunk.length -= l;
619 if (u->memchunk.length <= 0) {
620 pa_memblock_unref(u->memchunk.memblock);
621 pa_memchunk_reset(&u->memchunk);
626 if (u->memchunk.length > 0)
628 /* OK, we wrote less that we asked for,
629 * hence we can assume that the socket
630 * buffers are full now */
637 /* At this spot we know that the socket buffers are
638 * fully filled up. This is the best time to estimate
639 * the playback position of the server */
646 // if (ioctl(u->fd, SIOCOUTQ, &l) >= 0 && l > 0)
651 usec = pa_bytes_to_usec(n, &u->sink->sample_spec);
653 if (usec > u->latency)
658 pa_smoother_put(u->smoother, pa_rtclock_usec(), usec);
661 /* Hmm, nothing to do. Let's sleep */
662 pollfd->events = PA_SINK_IS_OPENED(u->sink->thread_info.state) ? POLLOUT : 0;
665 if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
671 if (u->rtpoll_item) {
672 struct pollfd* pollfd;
674 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
676 if (pollfd->revents & ~POLLOUT) {
677 pa_log("FIFO shutdown.");
684 /* If this was no regular exit from the loop we have to continue
685 * processing messages until we received PA_MESSAGE_SHUTDOWN */
686 pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
687 pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
690 pa_log_debug("Thread shutting down");
693 int pa__init(pa_module* m) {
695 const char *rate, *channels;
697 pa_sink_new_data data;
698 struct pollfd *pollfd;
702 m->userdata = u = pa_xnew0(struct userdata, 1);
705 u->audioservice_fd = -1;
710 u->smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC*2, TRUE, 10);
711 pa_memchunk_reset(&u->memchunk);
712 u->rtpoll = pa_rtpoll_new();
713 pa_thread_mq_init(&u->thread_mq, u->core->mainloop, u->rtpoll);
714 u->rtpoll_item = NULL;
716 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
717 pa_log_error("failed to parse module arguments");
720 if (!(u->name = pa_xstrdup(pa_modargs_get_value(ma, "name", DEFAULT_SINK_NAME)))) {
721 pa_log_error("failed to get device name from module arguments");
724 if (!(u->addr = pa_xstrdup(pa_modargs_get_value(ma, "addr", NULL)))) {
725 pa_log_error("failed to get device address from module arguments");
728 if (!(u->profile = pa_xstrdup(pa_modargs_get_value(ma, "profile", NULL)))) {
729 pa_log_error("failed to get profile from module arguments");
732 if (pa_modargs_get_value_u32(ma, "rate", &u->rate) < 0) {
733 pa_log_error("failed to get rate from module arguments");
736 if (pa_modargs_get_value_u32(ma, "channels", &u->channels) < 0) {
737 pa_log_error("failed to get channels from module arguments");
740 pa_log("Loading module-bt-device for %s (%s), profile %s", u->name, u->addr, u->profile);
742 /* connect to the bluez audio service */
743 u->audioservice_fd = bt_audio_service_open();
744 if (u->audioservice_fd <= 0) {
745 pa_log_error("couldn't connect to bluetooth audio service");
749 /* queries device capabilities */
752 pa_log_error("failed to get device capabilities");
756 /* configures the connection */
759 pa_log_error("failed to set config");
763 /* gets the device socket */
764 e = bt_getstreamfd(u);
766 pa_log_error("failed to get stream fd (%d)", e);
769 u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
770 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
771 pollfd->fd = u->stream_fd;
772 pollfd->events = pollfd->revents = 0;
774 /* configure hw supported sample specs */
775 e = bt_hw_constraint(u);
777 pa_log_error("failed to configure sample spec");
782 pa_sink_new_data_init(&data);
783 data.driver = __FILE__;
785 pa_sink_new_data_set_name(&data, u->name);
786 pa_sink_new_data_set_sample_spec(&data, &u->ss);
787 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->name);
788 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Bluetooth sink '%s' (%s)", u->name, u->addr);
789 u->sink = pa_sink_new(m->core, &data, PA_SINK_HARDWARE|PA_SINK_LATENCY|PA_SINK_NETWORK);
790 pa_sink_new_data_done(&data);
792 pa_log_error("failed to create sink");
795 u->sink->userdata = u;
796 u->sink->parent.process_msg = sink_process_msg;
797 pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
798 pa_sink_set_rtpoll(u->sink, u->rtpoll);
800 /* start rt thread */
801 if (!(u->thread = pa_thread_new(thread_func, u))) {
802 pa_log_error("failed to create thread");
805 pa_sink_put(u->sink);
817 void pa__done(pa_module *m) {
818 pa_log("Unloading module-bt-device");