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
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 uint16_t codesize; /* SBC codesize */
75 uint8_t samples; /* Number of encoded samples */
76 uint8_t buffer[BUFFER_SIZE]; /* Codec transfer buffer */
77 uint16_t count; /* Codec transfer buffer counter */
79 uint32_t nsamples; /* Cumulative number of codec samples */
80 uint16_t seq_num; /* Cumulative packet sequence */
81 uint8_t frame_count; /* Current frames in buffer*/
89 pa_thread_mq thread_mq;
91 pa_rtpoll_item *rtpoll_item;
95 pa_smoother *smoother;
105 uint8_t audioservice_fd;
117 static const char* const valid_modargs[] = {
126 static int bt_audioservice_send(int sk, const bt_audio_msg_header_t *msg) {
128 pa_log_debug("sending %s", bt_audio_strmsg(msg->msg_type));
129 if (send(sk, msg, BT_AUDIO_IPC_PACKET_SIZE, 0) > 0)
133 pa_log_error("Error sending data to audio service: %s(%d)", pa_cstrerror(errno), errno);
138 static int bt_audioservice_recv(int sk, bt_audio_msg_header_t *inmsg) {
142 pa_log_debug("trying to receive msg from audio service...");
143 if (recv(sk, inmsg, BT_AUDIO_IPC_PACKET_SIZE, 0) > 0) {
144 type = bt_audio_strmsg(inmsg->msg_type);
146 pa_log_debug("Received %s", type);
151 pa_log_error("Bogus message type %d received from audio service", inmsg->msg_type);
156 pa_log_error("Error receiving data from audio service: %s(%d)", pa_cstrerror(errno), errno);
162 static int bt_audioservice_expect(int sk, bt_audio_msg_header_t *rsp_hdr, int expected_type) {
163 int e = bt_audioservice_recv(sk, rsp_hdr);
165 if (rsp_hdr->msg_type != expected_type) {
167 pa_log_error("Bogus message %s received while %s was expected", bt_audio_strmsg(rsp_hdr->msg_type),
168 bt_audio_strmsg(expected_type));
174 static int bt_getcaps(struct userdata *u) {
177 bt_audio_rsp_msg_header_t rsp_hdr;
178 struct bt_getcapabilities_req getcaps_req;
179 struct bt_getcapabilities_rsp getcaps_rsp;
180 uint8_t buf[BT_AUDIO_IPC_PACKET_SIZE];
183 memset(msg.buf, 0, BT_AUDIO_IPC_PACKET_SIZE);
184 msg.getcaps_req.h.msg_type = BT_GETCAPABILITIES_REQ;
185 strncpy(msg.getcaps_req.device, u->addr, 18);
186 if (strcasecmp(u->profile, "a2dp") == 0)
187 msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_A2DP;
188 else if (strcasecmp(u->profile, "hsp") == 0)
189 msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_SCO;
191 pa_log_error("invalid profile argument: %s", u->profile);
194 msg.getcaps_req.flags = BT_FLAG_AUTOCONNECT;
196 e = bt_audioservice_send(u->audioservice_fd, &msg.getcaps_req.h);
198 pa_log_error("failed to send GETCAPABILITIES_REQ");
202 e = bt_audioservice_expect(u->audioservice_fd, &msg.rsp_hdr.msg_h, BT_GETCAPABILITIES_RSP);
204 pa_log_error("failed to expect for GETCAPABILITIES_RSP");
207 if (msg.rsp_hdr.posix_errno != 0) {
208 pa_log_error("BT_GETCAPABILITIES failed : %s (%d)", pa_cstrerror(msg.rsp_hdr.posix_errno), msg.rsp_hdr.posix_errno);
209 return -msg.rsp_hdr.posix_errno;
212 if ((u->transport = msg.getcaps_rsp.transport) == BT_CAPABILITIES_TRANSPORT_A2DP)
213 u->a2dp.sbc_capabilities = msg.getcaps_rsp.sbc_capabilities;
218 static uint8_t default_bitpool(uint8_t freq, uint8_t mode) {
220 case BT_SBC_SAMPLING_FREQ_16000:
221 case BT_SBC_SAMPLING_FREQ_32000:
223 case BT_SBC_SAMPLING_FREQ_44100:
225 case BT_A2DP_CHANNEL_MODE_MONO:
226 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
228 case BT_A2DP_CHANNEL_MODE_STEREO:
229 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
232 pa_log_warn("Invalid channel mode %u", mode);
235 case BT_SBC_SAMPLING_FREQ_48000:
237 case BT_A2DP_CHANNEL_MODE_MONO:
238 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
240 case BT_A2DP_CHANNEL_MODE_STEREO:
241 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
244 pa_log_warn("Invalid channel mode %u", mode);
248 pa_log_warn("Invalid sampling freq %u", freq);
253 static int bt_a2dp_init(struct userdata *u) {
254 sbc_capabilities_t *cap = &u->a2dp.sbc_capabilities;
255 unsigned int max_bitpool, min_bitpool;
257 switch (u->ss.rate) {
259 cap->frequency = BT_SBC_SAMPLING_FREQ_48000;
262 cap->frequency = BT_SBC_SAMPLING_FREQ_44100;
265 cap->frequency = BT_SBC_SAMPLING_FREQ_32000;
268 cap->frequency = BT_SBC_SAMPLING_FREQ_16000;
271 pa_log_error("Rate %d not supported", u->ss.rate);
275 if (u->ss.channels == 2) {
276 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
277 cap->channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
278 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
279 cap->channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
280 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
281 cap->channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
283 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
284 cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
287 if (!cap->channel_mode) {
288 pa_log_error("No supported channel modes");
292 if (cap->block_length & BT_A2DP_BLOCK_LENGTH_16)
293 cap->block_length = BT_A2DP_BLOCK_LENGTH_16;
294 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_12)
295 cap->block_length = BT_A2DP_BLOCK_LENGTH_12;
296 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_8)
297 cap->block_length = BT_A2DP_BLOCK_LENGTH_8;
298 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_4)
299 cap->block_length = BT_A2DP_BLOCK_LENGTH_4;
301 pa_log_error("No supported block lengths");
305 if (cap->subbands & BT_A2DP_SUBBANDS_8)
306 cap->subbands = BT_A2DP_SUBBANDS_8;
307 else if (cap->subbands & BT_A2DP_SUBBANDS_4)
308 cap->subbands = BT_A2DP_SUBBANDS_4;
310 pa_log_error("No supported subbands");
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 min_bitpool = PA_MAX(MIN_BITPOOL, cap->min_bitpool);
320 max_bitpool = PA_MIN(default_bitpool(cap->frequency, cap->channel_mode), cap->max_bitpool);
322 cap->min_bitpool = min_bitpool;
323 cap->max_bitpool = max_bitpool;
328 static void bt_a2dp_setup(struct bt_a2dp *a2dp) {
329 sbc_capabilities_t active_capabilities = a2dp->sbc_capabilities;
331 if (a2dp->sbc_initialized)
332 sbc_reinit(&a2dp->sbc, 0);
334 sbc_init(&a2dp->sbc, 0);
335 a2dp->sbc_initialized = TRUE;
337 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_16000)
338 a2dp->sbc.frequency = SBC_FREQ_16000;
340 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_32000)
341 a2dp->sbc.frequency = SBC_FREQ_32000;
343 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_44100)
344 a2dp->sbc.frequency = SBC_FREQ_44100;
346 if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_48000)
347 a2dp->sbc.frequency = SBC_FREQ_48000;
349 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
350 a2dp->sbc.mode = SBC_MODE_MONO;
352 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
353 a2dp->sbc.mode = SBC_MODE_DUAL_CHANNEL;
355 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
356 a2dp->sbc.mode = SBC_MODE_STEREO;
358 if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
359 a2dp->sbc.mode = SBC_MODE_JOINT_STEREO;
361 a2dp->sbc.allocation = (active_capabilities.allocation_method == BT_A2DP_ALLOCATION_SNR ? SBC_AM_SNR : SBC_AM_LOUDNESS);
363 switch (active_capabilities.subbands) {
364 case BT_A2DP_SUBBANDS_4:
365 a2dp->sbc.subbands = SBC_SB_4;
367 case BT_A2DP_SUBBANDS_8:
368 a2dp->sbc.subbands = SBC_SB_8;
372 switch (active_capabilities.block_length) {
373 case BT_A2DP_BLOCK_LENGTH_4:
374 a2dp->sbc.blocks = SBC_BLK_4;
376 case BT_A2DP_BLOCK_LENGTH_8:
377 a2dp->sbc.blocks = SBC_BLK_8;
379 case BT_A2DP_BLOCK_LENGTH_12:
380 a2dp->sbc.blocks = SBC_BLK_12;
382 case BT_A2DP_BLOCK_LENGTH_16:
383 a2dp->sbc.blocks = SBC_BLK_16;
387 a2dp->sbc.bitpool = active_capabilities.max_bitpool;
388 a2dp->codesize = sbc_get_codesize(&a2dp->sbc);
389 a2dp->count = sizeof(struct rtp_header) + sizeof(struct rtp_payload);
392 static int bt_setconf(struct userdata *u) {
395 bt_audio_rsp_msg_header_t rsp_hdr;
396 struct bt_setconfiguration_req setconf_req;
397 struct bt_setconfiguration_rsp setconf_rsp;
398 uint8_t buf[BT_AUDIO_IPC_PACKET_SIZE];
401 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
404 pa_log_error("a2dp_init error");
407 u->ss.format = PA_SAMPLE_S16LE;
410 u->ss.format = PA_SAMPLE_U8;
412 memset(msg.buf, 0, BT_AUDIO_IPC_PACKET_SIZE);
413 msg.setconf_req.h.msg_type = BT_SETCONFIGURATION_REQ;
414 strncpy(msg.setconf_req.device, u->addr, 18);
415 msg.setconf_req.transport = u->transport;
416 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP)
417 msg.setconf_req.sbc_capabilities = u->a2dp.sbc_capabilities;
418 msg.setconf_req.access_mode = BT_CAPABILITIES_ACCESS_MODE_WRITE;
420 e = bt_audioservice_send(u->audioservice_fd, &msg.setconf_req.h);
422 pa_log_error("failed to send BT_SETCONFIGURATION_REQ");
426 e = bt_audioservice_expect(u->audioservice_fd, &msg.rsp_hdr.msg_h, BT_SETCONFIGURATION_RSP);
428 pa_log_error("failed to expect BT_SETCONFIGURATION_RSP");
432 if (msg.rsp_hdr.posix_errno != 0) {
433 pa_log_error("BT_SETCONFIGURATION failed : %s(%d)", pa_cstrerror(msg.rsp_hdr.posix_errno), msg.rsp_hdr.posix_errno);
434 return -msg.rsp_hdr.posix_errno;
437 u->transport = msg.setconf_rsp.transport;
438 u->strtransport = (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP ? pa_xstrdup("A2DP") : pa_xstrdup("SCO"));
439 u->link_mtu = msg.setconf_rsp.link_mtu;
441 /* setup SBC encoder now we agree on parameters */
442 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
443 bt_a2dp_setup(&u->a2dp);
444 u->block_size = u->a2dp.codesize;
445 pa_log_info("sbc parameters:\n\tallocation=%u\n\tsubbands=%u\n\tblocks=%u\n\tbitpool=%u\n",
446 u->a2dp.sbc.allocation, u->a2dp.sbc.subbands, u->a2dp.sbc.blocks, u->a2dp.sbc.bitpool);
449 u->block_size = u->link_mtu;
454 static int bt_getstreamfd(struct userdata *u) {
456 // uint32_t period_count = io->buffer_size / io->period_size;
458 bt_audio_rsp_msg_header_t rsp_hdr;
459 struct bt_streamstart_req start_req;
460 struct bt_streamfd_ind streamfd_ind;
461 uint8_t buf[BT_AUDIO_IPC_PACKET_SIZE];
464 memset(msg.buf, 0, BT_AUDIO_IPC_PACKET_SIZE);
465 msg.start_req.h.msg_type = BT_STREAMSTART_REQ;
467 e = bt_audioservice_send(u->audioservice_fd, &msg.start_req.h);
469 pa_log_error("failed to send BT_STREAMSTART_REQ");
473 e = bt_audioservice_expect(u->audioservice_fd, &msg.rsp_hdr.msg_h, BT_STREAMSTART_RSP);
475 pa_log_error("failed to expect BT_STREAMSTART_RSP");
479 if (msg.rsp_hdr.posix_errno != 0) {
480 pa_log_error("BT_START failed : %s(%d)", pa_cstrerror(msg.rsp_hdr.posix_errno), msg.rsp_hdr.posix_errno);
481 return -msg.rsp_hdr.posix_errno;
484 e = bt_audioservice_expect(u->audioservice_fd, &msg.streamfd_ind.h, BT_STREAMFD_IND);
486 pa_log_error("failed to expect BT_STREAMFD_IND");
490 if (u->stream_fd >= 0)
491 pa_close(u->stream_fd);
493 u->stream_fd = bt_audio_service_get_data_fd(u->audioservice_fd);
494 if (u->stream_fd < 0) {
495 pa_log_error("failed to get data fd: %s (%d)",pa_cstrerror(errno), errno);
499 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
500 if (pa_socket_set_sndbuf(u->stream_fd, 10*u->link_mtu) < 0) {
501 pa_log_error("failed to set socket options for A2DP: %s (%d)",pa_cstrerror(errno), errno);
506 // if (setsockopt(u->stream_fd, SOL_SCO, SCO_TXBUFS, &period_count, sizeof(period_count)) == 0)
508 // if (setsockopt(u->stream_fd, SOL_SCO, SO_SNDBUF, &period_count, sizeof(period_count)) == 0)
510 // /* FIXME : handle error codes */
511 pa_make_fd_nonblock(u->stream_fd);
512 // pa_make_socket_low_delay(u->stream_fd);
517 static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
518 struct userdata *u = PA_SINK(o)->userdata;
520 pa_log_debug("got message: %d", code);
523 case PA_SINK_MESSAGE_SET_STATE:
524 switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
525 case PA_SINK_SUSPENDED:
526 pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
527 pa_smoother_pause(u->smoother, pa_rtclock_usec());
530 case PA_SINK_RUNNING:
531 if (u->sink->thread_info.state == PA_SINK_SUSPENDED)
532 pa_smoother_resume(u->smoother, pa_rtclock_usec());
534 case PA_SINK_UNLINKED:
540 case PA_SINK_MESSAGE_GET_LATENCY: {
542 r = pa_smoother_get(u->smoother, pa_rtclock_usec());
543 w = pa_bytes_to_usec(u->offset + u->memchunk.length, &u->sink->sample_spec);
544 *((pa_usec_t*) data) = w > r ? w - r : 0;
550 return pa_sink_process_msg(o, code, data, offset, chunk);
553 static int sco_process_render(struct userdata *u) {
558 u->memchunk.memblock = pa_memblock_new(u->mempool, u->block_size);
559 pa_log_debug("memblock asked size %d", u->block_size);
560 u->memchunk.length = pa_memblock_get_length(u->memchunk.memblock);
561 pa_log_debug("memchunk length %d", u->memchunk.length);
562 pa_sink_render_into_full(u->sink, &u->memchunk);
564 pa_assert(u->memchunk.length > 0);
566 p = pa_memblock_acquire(u->memchunk.memblock);
569 l = pa_write(u->stream_fd, (uint8_t*) p, u->memchunk.length, &write_type);
570 pa_log_debug("memblock written to socket: %d bytes", l);
575 if (errno == EINTR) {
576 pa_log_debug("EINTR");
579 else if (errno == EAGAIN) {
580 pa_log_debug("EAGAIN");
584 pa_memblock_release(u->memchunk.memblock);
585 pa_memblock_unref(u->memchunk.memblock);
586 pa_memchunk_reset(&u->memchunk);
587 pa_log_debug("memchunk reseted");
588 pa_log_error("Failed to write data to FIFO: %s", pa_cstrerror(errno));
592 pa_memblock_release(u->memchunk.memblock);
593 pa_memblock_unref(u->memchunk.memblock);
594 pa_memchunk_reset(&u->memchunk);
595 pa_log_debug("memchunk reseted");
601 static int a2dp_process_render(struct userdata *u) {
603 uint8_t write_type = 0;
605 struct bt_a2dp *a2dp = &u->a2dp;
606 struct rtp_header *header = (void *) a2dp->buffer;
607 struct rtp_payload *payload = (void *) (a2dp->buffer + sizeof(*header));
612 /* Render some data */
617 u->memchunk.memblock = pa_memblock_new(u->mempool, u->block_size);
618 pa_log_debug("memblock asked size %d", u->block_size);
619 u->memchunk.length = pa_memblock_get_length(u->memchunk.memblock);
620 pa_log_debug("memchunk length %d", u->memchunk.length);
621 pa_sink_render_into_full(u->sink, &u->memchunk);
623 pa_assert(u->memchunk.length > 0);
625 p = pa_memblock_acquire(u->memchunk.memblock);
626 frame_size = sbc_get_frame_length(&a2dp->sbc);
627 pa_log_debug("SBC frame_size: %d", frame_size);
629 encoded = sbc_encode(&a2dp->sbc, (uint8_t*) p, a2dp->codesize, a2dp->buffer + a2dp->count,
630 sizeof(a2dp->buffer) - a2dp->count, &written);
631 pa_log_debug("SBC: encoded: %d; written: %d", encoded, written);
633 pa_log_error("SBC encoding error (%d)", encoded);
636 pa_memblock_release(u->memchunk.memblock);
637 pa_memblock_unref(u->memchunk.memblock);
638 pa_memchunk_reset(&u->memchunk);
639 pa_log_debug("memchunk reseted");
641 a2dp->count += written;
643 a2dp->samples += encoded / frame_size;
644 a2dp->nsamples += encoded / frame_size;
645 } while (a2dp->count + written <= u->link_mtu);
647 /* write it to the fifo */
648 memset(a2dp->buffer, 0, sizeof(*header) + sizeof(*payload));
649 payload->frame_count = a2dp->frame_count;
652 header->sequence_number = htons(a2dp->seq_num);
653 header->timestamp = htonl(a2dp->nsamples);
654 header->ssrc = htonl(1);
657 l = pa_write(u->stream_fd, a2dp->buffer, a2dp->count, &write_type);
658 pa_log_debug("avdtp_write: requested %d bytes; written %d bytes", a2dp->count, l);
663 if (errno == EINTR) {
664 pa_log_debug("EINTR");
667 else if (errno == EAGAIN) {
668 pa_log_debug("EAGAIN");
672 pa_log_error("Failed to write data to FIFO: %s", pa_cstrerror(errno));
677 u->offset += a2dp->codesize*a2dp->frame_count;
679 /* Reset buffer of data to send */
680 a2dp->count = sizeof(struct rtp_header) + sizeof(struct rtp_payload);
681 a2dp->frame_count = 0;
688 static void thread_func(void *userdata) {
689 struct userdata *u = userdata;
693 pa_log_debug("IO Thread starting up");
695 pa_thread_mq_install(&u->thread_mq);
696 pa_rtpoll_install(u->rtpoll);
698 pa_smoother_set_time_offset(u->smoother, pa_rtclock_usec());
702 struct pollfd *pollfd;
706 if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
707 if (u->sink->thread_info.rewind_requested) {
708 pa_sink_process_rewind(u->sink, 0);
712 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
714 if (PA_SINK_IS_OPENED(u->sink->thread_info.state) && pollfd->revents) {
715 if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
716 if ((l = a2dp_process_render(u)) < 0)
720 if ((l = sco_process_render(u)) < 0)
725 /* feed the time smoother */
727 if (ioctl(u->stream_fd, SIOCOUTQ, &l) >= 0 && l > 0)
729 usec = pa_bytes_to_usec(n, &u->sink->sample_spec);
730 if (usec > u->latency)
734 pa_smoother_put(u->smoother, pa_rtclock_usec(), usec);
737 /* Hmm, nothing to do. Let's sleep */
738 pa_log_debug("IO thread going to sleep");
739 pollfd->events = PA_SINK_IS_OPENED(u->sink->thread_info.state) ? POLLOUT : 0;
740 if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0) {
741 pa_log_error("rtpoll_run < 0");
744 pa_log_debug("IO thread waking up");
747 pa_log_debug("rtpoll_run == 0");
751 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
752 if (pollfd->revents & ~POLLOUT) {
753 pa_log_error("FIFO shutdown.");
759 /* If this was no regular exit from the loop we have to continue processing messages until we receive PA_MESSAGE_SHUTDOWN */
760 pa_log_debug("IO thread failed");
761 pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
762 pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
765 pa_log_debug("IO thread shutting down");
768 int pa__init(pa_module* m) {
772 pa_sink_new_data data;
773 struct pollfd *pollfd;
777 m->userdata = u = pa_xnew0(struct userdata, 1);
780 u->audioservice_fd = -1;
785 u->a2dp.sbc_initialized = FALSE;
786 u->smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC*2, TRUE, 10);
787 u->mempool = pa_mempool_new(FALSE);
788 pa_memchunk_reset(&u->memchunk);
789 u->rtpoll = pa_rtpoll_new();
790 pa_thread_mq_init(&u->thread_mq, u->core->mainloop, u->rtpoll);
791 u->rtpoll_item = NULL;
792 u->ss = m->core->default_sample_spec;
794 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
795 pa_log_error("Failed to parse module arguments");
798 if (!(u->name = pa_xstrdup(pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME)))) {
799 pa_log_error("Failed to get device name from module arguments");
802 if (!(u->addr = pa_xstrdup(pa_modargs_get_value(ma, "address", NULL)))) {
803 pa_log_error("Failed to get device address from module arguments");
806 if (!(u->profile = pa_xstrdup(pa_modargs_get_value(ma, "profile", NULL)))) {
807 pa_log_error("Failed to get profile from module arguments");
810 if (pa_modargs_get_value_u32(ma, "rate", &u->ss.rate) < 0) {
811 pa_log_error("Failed to get rate from module arguments");
815 channels = u->ss.channels;
816 if (pa_modargs_get_value_u32(ma, "channels", &channels) < 0) {
817 pa_log_error("Failed to get channels from module arguments");
820 u->ss.channels = (uint8_t) channels;
822 /* connect to the bluez audio service */
823 u->audioservice_fd = bt_audio_service_open();
824 if (u->audioservice_fd <= 0) {
825 pa_log_error("couldn't connect to bluetooth audio service");
828 pa_log_debug("connected to the bluetooth audio service");
830 /* queries device capabilities */
833 pa_log_error("failed to get device capabilities");
836 pa_log_debug("got device capabilities");
838 /* configures the connection */
841 pa_log_error("failed to set config");
844 pa_log_debug("connection to the device configured");
846 /* gets the device socket */
847 e = bt_getstreamfd(u);
849 pa_log_error("failed to get stream fd (%d)", e);
852 pa_log_debug("got the device socket");
855 pa_sink_new_data_init(&data);
856 data.driver = __FILE__;
858 pa_sink_new_data_set_name(&data, u->name);
859 pa_sink_new_data_set_sample_spec(&data, &u->ss);
860 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->name);
861 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Bluetooth %s '%s' (%s)", u->strtransport, u->name, u->addr);
862 pa_proplist_setf(data.proplist, "bluetooth.protocol", u->profile);
863 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_API, "bluez");
864 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_CLASS, "sound");
865 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_CONNECTOR, "bluetooth");
866 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_FORM_FACTOR, "headset"); /*FIXME*/
867 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_VENDOR_PRODUCT_ID, "product_id"); /*FIXME*/
868 pa_proplist_setf(data.proplist, PA_PROP_DEVICE_SERIAL, "serial"); /*FIXME*/
869 u->sink = pa_sink_new(m->core, &data, PA_SINK_HARDWARE|PA_SINK_LATENCY);
870 pa_sink_new_data_done(&data);
872 pa_log_error("failed to create sink");
875 u->sink->userdata = u;
876 u->sink->parent.process_msg = sink_process_msg;
877 pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
878 pa_sink_set_rtpoll(u->sink, u->rtpoll);
880 u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
881 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
882 pollfd->fd = u->stream_fd;
883 pollfd->events = pollfd->revents = 0;
885 /* start rt thread */
886 if (!(u->thread = pa_thread_new(thread_func, u))) {
887 pa_log_error("failed to create IO thread");
890 pa_sink_put(u->sink);
902 void pa__done(pa_module *m) {
906 if (!(u = m->userdata))
910 pa_sink_unlink(u->sink);
913 pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
914 pa_thread_free(u->thread);
917 pa_thread_mq_done(&u->thread_mq);
920 pa_sink_unref(u->sink);
923 pa_rtpoll_item_free(u->rtpoll_item);
926 pa_rtpoll_free(u->rtpoll);
928 if (u->memchunk.memblock)
929 pa_memblock_unref(u->memchunk.memblock);
932 pa_mempool_free(u->mempool);
935 pa_smoother_free(u->smoother);
944 pa_xfree(u->profile);
946 if (u->stream_fd >= 0)
947 pa_close(u->stream_fd);
949 if (u->audioservice_fd >= 0)
950 pa_close(u->audioservice_fd);