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[pulseaudio] / 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 2.1 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 <pulse/i18n.h>
37
38 #include <pulsecore/module.h>
39 #include <pulsecore/modargs.h>
40 #include <pulsecore/core-util.h>
41 #include <pulsecore/core-error.h>
42 #include <pulsecore/socket-util.h>
43 #include <pulsecore/thread.h>
44 #include <pulsecore/thread-mq.h>
45 #include <pulsecore/rtpoll.h>
46 #include <pulsecore/time-smoother.h>
47 #include <pulsecore/rtclock.h>
48 #include <pulsecore/namereg.h>
49
50 #include <modules/dbus-util.h>
51
52 #include "module-bluetooth-device-symdef.h"
53 #include "ipc.h"
54 #include "sbc.h"
55 #include "rtp.h"
56 #include "bluetooth-util.h"
57
58 #define MAX_BITPOOL 64
59 #define MIN_BITPOOL 2U
60 #define SOL_SCO 17
61 #define SCO_TXBUFS 0x03
62 #define SCO_RXBUFS 0x04
63
64 PA_MODULE_AUTHOR("Joao Paulo Rechi Vita");
65 PA_MODULE_DESCRIPTION("Bluetooth audio sink and source");
66 PA_MODULE_VERSION(PACKAGE_VERSION);
67 PA_MODULE_LOAD_ONCE(FALSE);
68 PA_MODULE_USAGE(
69 "name=<name for the card/sink/source, to be prefixed> "
70 "card_name=<name for the card> "
71 "sink_name=<name for the sink> "
72 "source_name=<name for the source> "
73 "address=<address of the device> "
74 "profile=<a2dp|hsp> "
75 "rate=<sample rate> "
76 "channels=<number of channels> "
77 "path=<device object path> "
78 "sco_sink=<SCO over PCM sink name> "
79 "sco_source=<SCO over PCM source name>");
80
81 static const char* const valid_modargs[] = {
82 "name",
83 "card_name",
84 "sink_name",
85 "source_name",
86 "address",
87 "profile",
88 "rate",
89 "channels",
90 "path",
91 "sco_sink",
92 "sco_source",
93 NULL
94 };
95
96 struct a2dp_info {
97 sbc_capabilities_t sbc_capabilities;
98 sbc_t sbc; /* Codec data */
99 pa_bool_t sbc_initialized; /* Keep track if the encoder is initialized */
100 size_t codesize; /* SBC codesize */
101
102 void* buffer; /* Codec transfer buffer */
103 size_t buffer_size; /* Size of the buffer */
104
105 uint16_t seq_num; /* Cumulative packet sequence */
106 };
107
108 struct hsp_info {
109 pcm_capabilities_t pcm_capabilities;
110 pa_sink *sco_sink;
111 pa_source *sco_source;
112 pa_hook_slot *sink_state_changed_slot;
113 pa_hook_slot *source_state_changed_slot;
114 };
115
116 enum profile {
117 PROFILE_A2DP,
118 PROFILE_HSP,
119 PROFILE_OFF
120 };
121
122 struct userdata {
123 pa_core *core;
124 pa_module *module;
125
126 pa_card *card;
127 pa_sink *sink;
128 pa_source *source;
129
130 pa_thread_mq thread_mq;
131 pa_rtpoll *rtpoll;
132 pa_rtpoll_item *rtpoll_item;
133 pa_thread *thread;
134
135 uint64_t read_index, write_index;
136 pa_usec_t started_at;
137 pa_smoother *read_smoother;
138
139 pa_memchunk write_memchunk;
140
141 pa_sample_spec sample_spec, requested_sample_spec;
142
143 int service_fd;
144 int stream_fd;
145
146 size_t link_mtu;
147 size_t block_size;
148
149 struct a2dp_info a2dp;
150 struct hsp_info hsp;
151 pa_dbus_connection *connection;
152
153 enum profile profile;
154
155 pa_modargs *modargs;
156
157 pa_bluetooth_device *device;
158
159 int stream_write_type, stream_read_type;
160 int service_write_type, service_read_type;
161 };
162
163 static int init_bt(struct userdata *u);
164 static int init_profile(struct userdata *u);
165
166 static int service_send(struct userdata *u, const bt_audio_msg_header_t *msg) {
167 ssize_t r;
168
169 pa_assert(u);
170 pa_assert(u->service_fd >= 0);
171 pa_assert(msg);
172 pa_assert(msg->length > 0);
173
174 pa_log_debug("Sending %s -> %s",
175 pa_strnull(bt_audio_strtype(msg->type)),
176 pa_strnull(bt_audio_strname(msg->name)));
177
178 if ((r = pa_loop_write(u->service_fd, msg, msg->length, &u->service_write_type)) == (ssize_t) msg->length)
179 return 0;
180
181 if (r < 0)
182 pa_log_error("Error sending data to audio service: %s", pa_cstrerror(errno));
183 else
184 pa_log_error("Short write()");
185
186 return -1;
187 }
188
189 static int service_recv(struct userdata *u, bt_audio_msg_header_t *msg, size_t room) {
190 ssize_t r;
191
192 pa_assert(u);
193 pa_assert(u->service_fd >= 0);
194 pa_assert(msg);
195
196 if (room <= 0)
197 room = BT_SUGGESTED_BUFFER_SIZE;
198
199 pa_log_debug("Trying to receive message from audio service...");
200
201 /* First, read the header */
202 if ((r = pa_loop_read(u->service_fd, msg, sizeof(*msg), &u->service_read_type)) != sizeof(*msg))
203 goto read_fail;
204
205 if (msg->length < sizeof(*msg)) {
206 pa_log_error("Invalid message size.");
207 return -1;
208 }
209
210 /* Secondly, read the payload */
211 if (msg->length > sizeof(*msg)) {
212
213 size_t remains = msg->length - sizeof(*msg);
214
215 if ((r = pa_loop_read(u->service_fd,
216 (uint8_t*) msg + sizeof(*msg),
217 remains,
218 &u->service_read_type)) != (ssize_t) remains)
219 goto read_fail;
220 }
221
222 pa_log_debug("Received %s <- %s",
223 pa_strnull(bt_audio_strtype(msg->type)),
224 pa_strnull(bt_audio_strname(msg->name)));
225
226 return 0;
227
228 read_fail:
229
230 if (r < 0)
231 pa_log_error("Error receiving data from audio service: %s", pa_cstrerror(errno));
232 else
233 pa_log_error("Short read()");
234
235 return -1;
236 }
237
238 static ssize_t service_expect(struct userdata*u, bt_audio_msg_header_t *rsp, size_t room, uint8_t expected_name, size_t expected_size) {
239 int r;
240
241 pa_assert(u);
242 pa_assert(u->service_fd >= 0);
243 pa_assert(rsp);
244
245 if ((r = service_recv(u, rsp, room)) < 0)
246 return r;
247
248 if ((rsp->type != BT_INDICATION && rsp->type != BT_RESPONSE) ||
249 rsp->name != expected_name ||
250 (expected_size > 0 && rsp->length != expected_size)) {
251
252 if (rsp->type == BT_ERROR && rsp->length == sizeof(bt_audio_error_t))
253 pa_log_error("Received error condition: %s", pa_cstrerror(((bt_audio_error_t*) rsp)->posix_errno));
254 else
255 pa_log_error("Bogus message %s received while %s was expected",
256 pa_strnull(bt_audio_strname(rsp->name)),
257 pa_strnull(bt_audio_strname(expected_name)));
258 return -1;
259 }
260
261 return 0;
262 }
263
264 static int parse_caps(struct userdata *u, const struct bt_get_capabilities_rsp *rsp) {
265 uint16_t bytes_left;
266 const codec_capabilities_t *codec;
267
268 pa_assert(u);
269 pa_assert(rsp);
270
271 bytes_left = rsp->h.length - sizeof(*rsp);
272
273 if (bytes_left < sizeof(codec_capabilities_t)) {
274 pa_log_error("Packet too small to store codec information.");
275 return -1;
276 }
277
278 codec = (codec_capabilities_t *) rsp->data; /** ALIGNMENT? **/
279
280 pa_log_debug("Payload size is %lu %lu", (unsigned long) bytes_left, (unsigned long) sizeof(*codec));
281
282 if ((u->profile == PROFILE_A2DP && codec->transport != BT_CAPABILITIES_TRANSPORT_A2DP) ||
283 (u->profile == PROFILE_HSP && codec->transport != BT_CAPABILITIES_TRANSPORT_SCO)) {
284 pa_log_error("Got capabilities for wrong codec.");
285 return -1;
286 }
287
288 if (u->profile == PROFILE_HSP) {
289
290 if (bytes_left <= 0 || codec->length != sizeof(u->hsp.pcm_capabilities))
291 return -1;
292
293 pa_assert(codec->type == BT_HFP_CODEC_PCM);
294
295 memcpy(&u->hsp.pcm_capabilities, codec, sizeof(u->hsp.pcm_capabilities));
296
297 } else if (u->profile == PROFILE_A2DP) {
298
299 while (bytes_left > 0) {
300 if (codec->type == BT_A2DP_CODEC_SBC)
301 break;
302
303 bytes_left -= codec->length;
304 codec = (const codec_capabilities_t*) ((const uint8_t*) codec + codec->length);
305 }
306
307 if (bytes_left <= 0 || codec->length != sizeof(u->a2dp.sbc_capabilities))
308 return -1;
309
310 pa_assert(codec->type == BT_A2DP_CODEC_SBC);
311
312 memcpy(&u->a2dp.sbc_capabilities, codec, sizeof(u->a2dp.sbc_capabilities));
313 }
314
315 return 0;
316 }
317
318 static int get_caps(struct userdata *u) {
319 union {
320 struct bt_get_capabilities_req getcaps_req;
321 struct bt_get_capabilities_rsp getcaps_rsp;
322 bt_audio_error_t error;
323 uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
324 } msg;
325
326 pa_assert(u);
327
328 memset(&msg, 0, sizeof(msg));
329 msg.getcaps_req.h.type = BT_REQUEST;
330 msg.getcaps_req.h.name = BT_GET_CAPABILITIES;
331 msg.getcaps_req.h.length = sizeof(msg.getcaps_req);
332
333 pa_strlcpy(msg.getcaps_req.device, u->device->address, sizeof(msg.getcaps_req.device));
334 if (u->profile == PROFILE_A2DP)
335 msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_A2DP;
336 else {
337 pa_assert(u->profile == PROFILE_HSP);
338 msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_SCO;
339 }
340 msg.getcaps_req.flags = BT_FLAG_AUTOCONNECT;
341
342 if (service_send(u, &msg.getcaps_req.h) < 0)
343 return -1;
344
345 if (service_expect(u, &msg.getcaps_rsp.h, sizeof(msg), BT_GET_CAPABILITIES, 0) < 0)
346 return -1;
347
348 return parse_caps(u, &msg.getcaps_rsp);
349 }
350
351 static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
352
353 switch (freq) {
354 case BT_SBC_SAMPLING_FREQ_16000:
355 case BT_SBC_SAMPLING_FREQ_32000:
356 return 53;
357
358 case BT_SBC_SAMPLING_FREQ_44100:
359
360 switch (mode) {
361 case BT_A2DP_CHANNEL_MODE_MONO:
362 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
363 return 31;
364
365 case BT_A2DP_CHANNEL_MODE_STEREO:
366 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
367 return 53;
368
369 default:
370 pa_log_warn("Invalid channel mode %u", mode);
371 return 53;
372 }
373
374 case BT_SBC_SAMPLING_FREQ_48000:
375
376 switch (mode) {
377 case BT_A2DP_CHANNEL_MODE_MONO:
378 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
379 return 29;
380
381 case BT_A2DP_CHANNEL_MODE_STEREO:
382 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
383 return 51;
384
385 default:
386 pa_log_warn("Invalid channel mode %u", mode);
387 return 51;
388 }
389
390 default:
391 pa_log_warn("Invalid sampling freq %u", freq);
392 return 53;
393 }
394 }
395
396 static int setup_a2dp(struct userdata *u) {
397 sbc_capabilities_t *cap;
398 int i;
399
400 static const struct {
401 uint32_t rate;
402 uint8_t cap;
403 } freq_table[] = {
404 { 16000U, BT_SBC_SAMPLING_FREQ_16000 },
405 { 32000U, BT_SBC_SAMPLING_FREQ_32000 },
406 { 44100U, BT_SBC_SAMPLING_FREQ_44100 },
407 { 48000U, BT_SBC_SAMPLING_FREQ_48000 }
408 };
409
410 pa_assert(u);
411 pa_assert(u->profile == PROFILE_A2DP);
412
413 cap = &u->a2dp.sbc_capabilities;
414
415 /* Find the lowest freq that is at least as high as the requested
416 * sampling rate */
417 for (i = 0; (unsigned) i < PA_ELEMENTSOF(freq_table); i++)
418 if (freq_table[i].rate >= u->sample_spec.rate && (cap->frequency & freq_table[i].cap)) {
419 u->sample_spec.rate = freq_table[i].rate;
420 cap->frequency = freq_table[i].cap;
421 break;
422 }
423
424 if ((unsigned) i >= PA_ELEMENTSOF(freq_table)) {
425 for (; i >= 0; i--) {
426 if (cap->frequency & freq_table[i].cap) {
427 u->sample_spec.rate = freq_table[i].rate;
428 cap->frequency = freq_table[i].cap;
429 break;
430 }
431 }
432
433 if (i < 0) {
434 pa_log("Not suitable sample rate");
435 return -1;
436 }
437 }
438
439 if (u->sample_spec.channels <= 1) {
440 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
441 cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
442 u->sample_spec.channels = 1;
443 } else
444 u->sample_spec.channels = 2;
445 }
446
447 if (u->sample_spec.channels >= 2) {
448 u->sample_spec.channels = 2;
449
450 if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
451 cap->channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
452 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
453 cap->channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
454 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
455 cap->channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
456 else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
457 cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
458 u->sample_spec.channels = 1;
459 } else {
460 pa_log("No supported channel modes");
461 return -1;
462 }
463 }
464
465 if (cap->block_length & BT_A2DP_BLOCK_LENGTH_16)
466 cap->block_length = BT_A2DP_BLOCK_LENGTH_16;
467 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_12)
468 cap->block_length = BT_A2DP_BLOCK_LENGTH_12;
469 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_8)
470 cap->block_length = BT_A2DP_BLOCK_LENGTH_8;
471 else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_4)
472 cap->block_length = BT_A2DP_BLOCK_LENGTH_4;
473 else {
474 pa_log_error("No supported block lengths");
475 return -1;
476 }
477
478 if (cap->subbands & BT_A2DP_SUBBANDS_8)
479 cap->subbands = BT_A2DP_SUBBANDS_8;
480 else if (cap->subbands & BT_A2DP_SUBBANDS_4)
481 cap->subbands = BT_A2DP_SUBBANDS_4;
482 else {
483 pa_log_error("No supported subbands");
484 return -1;
485 }
486
487 if (cap->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS)
488 cap->allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
489 else if (cap->allocation_method & BT_A2DP_ALLOCATION_SNR)
490 cap->allocation_method = BT_A2DP_ALLOCATION_SNR;
491
492 cap->min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
493 cap->max_bitpool = (uint8_t) PA_MIN(a2dp_default_bitpool(cap->frequency, cap->channel_mode), cap->max_bitpool);
494
495 return 0;
496 }
497
498 static void setup_sbc(struct a2dp_info *a2dp) {
499 sbc_capabilities_t *active_capabilities;
500
501 pa_assert(a2dp);
502
503 active_capabilities = &a2dp->sbc_capabilities;
504
505 if (a2dp->sbc_initialized)
506 sbc_reinit(&a2dp->sbc, 0);
507 else
508 sbc_init(&a2dp->sbc, 0);
509 a2dp->sbc_initialized = TRUE;
510
511 switch (active_capabilities->frequency) {
512 case BT_SBC_SAMPLING_FREQ_16000:
513 a2dp->sbc.frequency = SBC_FREQ_16000;
514 break;
515 case BT_SBC_SAMPLING_FREQ_32000:
516 a2dp->sbc.frequency = SBC_FREQ_32000;
517 break;
518 case BT_SBC_SAMPLING_FREQ_44100:
519 a2dp->sbc.frequency = SBC_FREQ_44100;
520 break;
521 case BT_SBC_SAMPLING_FREQ_48000:
522 a2dp->sbc.frequency = SBC_FREQ_48000;
523 break;
524 default:
525 pa_assert_not_reached();
526 }
527
528 switch (active_capabilities->channel_mode) {
529 case BT_A2DP_CHANNEL_MODE_MONO:
530 a2dp->sbc.mode = SBC_MODE_MONO;
531 break;
532 case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
533 a2dp->sbc.mode = SBC_MODE_DUAL_CHANNEL;
534 break;
535 case BT_A2DP_CHANNEL_MODE_STEREO:
536 a2dp->sbc.mode = SBC_MODE_STEREO;
537 break;
538 case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
539 a2dp->sbc.mode = SBC_MODE_JOINT_STEREO;
540 break;
541 default:
542 pa_assert_not_reached();
543 }
544
545 switch (active_capabilities->allocation_method) {
546 case BT_A2DP_ALLOCATION_SNR:
547 a2dp->sbc.allocation = SBC_AM_SNR;
548 break;
549 case BT_A2DP_ALLOCATION_LOUDNESS:
550 a2dp->sbc.allocation = SBC_AM_LOUDNESS;
551 break;
552 default:
553 pa_assert_not_reached();
554 }
555
556 switch (active_capabilities->subbands) {
557 case BT_A2DP_SUBBANDS_4:
558 a2dp->sbc.subbands = SBC_SB_4;
559 break;
560 case BT_A2DP_SUBBANDS_8:
561 a2dp->sbc.subbands = SBC_SB_8;
562 break;
563 default:
564 pa_assert_not_reached();
565 }
566
567 switch (active_capabilities->block_length) {
568 case BT_A2DP_BLOCK_LENGTH_4:
569 a2dp->sbc.blocks = SBC_BLK_4;
570 break;
571 case BT_A2DP_BLOCK_LENGTH_8:
572 a2dp->sbc.blocks = SBC_BLK_8;
573 break;
574 case BT_A2DP_BLOCK_LENGTH_12:
575 a2dp->sbc.blocks = SBC_BLK_12;
576 break;
577 case BT_A2DP_BLOCK_LENGTH_16:
578 a2dp->sbc.blocks = SBC_BLK_16;
579 break;
580 default:
581 pa_assert_not_reached();
582 }
583
584 a2dp->sbc.bitpool = active_capabilities->max_bitpool;
585 a2dp->codesize = (uint16_t) sbc_get_codesize(&a2dp->sbc);
586 }
587
588 static int set_conf(struct userdata *u) {
589 union {
590 struct bt_set_configuration_req setconf_req;
591 struct bt_set_configuration_rsp setconf_rsp;
592 bt_audio_error_t error;
593 uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
594 } msg;
595
596 if (u->profile == PROFILE_A2DP ) {
597 u->sample_spec.format = PA_SAMPLE_S16LE;
598
599 if (setup_a2dp(u) < 0)
600 return -1;
601 } else {
602 pa_assert(u->profile == PROFILE_HSP);
603
604 u->sample_spec.format = PA_SAMPLE_S16LE;
605 u->sample_spec.channels = 1;
606 u->sample_spec.rate = 8000;
607 }
608
609 memset(&msg, 0, sizeof(msg));
610 msg.setconf_req.h.type = BT_REQUEST;
611 msg.setconf_req.h.name = BT_SET_CONFIGURATION;
612 msg.setconf_req.h.length = sizeof(msg.setconf_req);
613
614 pa_strlcpy(msg.setconf_req.device, u->device->address, sizeof(msg.setconf_req.device));
615 msg.setconf_req.access_mode = u->profile == PROFILE_A2DP ? BT_CAPABILITIES_ACCESS_MODE_WRITE : BT_CAPABILITIES_ACCESS_MODE_READWRITE;
616
617 msg.setconf_req.codec.transport = u->profile == PROFILE_A2DP ? BT_CAPABILITIES_TRANSPORT_A2DP : BT_CAPABILITIES_TRANSPORT_SCO;
618
619 if (u->profile == PROFILE_A2DP) {
620 memcpy(&msg.setconf_req.codec, &u->a2dp.sbc_capabilities, sizeof(u->a2dp.sbc_capabilities));
621 msg.setconf_req.h.length += msg.setconf_req.codec.length - sizeof(msg.setconf_req.codec);
622 }
623
624 if (service_send(u, &msg.setconf_req.h) < 0)
625 return -1;
626
627 if (service_expect(u, &msg.setconf_rsp.h, sizeof(msg), BT_SET_CONFIGURATION, sizeof(msg.setconf_rsp)) < 0)
628 return -1;
629
630 if ((u->profile == PROFILE_A2DP && msg.setconf_rsp.transport != BT_CAPABILITIES_TRANSPORT_A2DP) ||
631 (u->profile == PROFILE_HSP && msg.setconf_rsp.transport != BT_CAPABILITIES_TRANSPORT_SCO)) {
632 pa_log("Transport doesn't match what we requested.");
633 return -1;
634 }
635
636 if ((u->profile == PROFILE_A2DP && msg.setconf_rsp.access_mode != BT_CAPABILITIES_ACCESS_MODE_WRITE) ||
637 (u->profile == PROFILE_HSP && msg.setconf_rsp.access_mode != BT_CAPABILITIES_ACCESS_MODE_READWRITE)) {
638 pa_log("Access mode doesn't match what we requested.");
639 return -1;
640 }
641
642 u->link_mtu = msg.setconf_rsp.link_mtu;
643
644 /* setup SBC encoder now we agree on parameters */
645 if (u->profile == PROFILE_A2DP) {
646 setup_sbc(&u->a2dp);
647 u->block_size = u->a2dp.codesize;
648 pa_log_info("SBC parameters:\n\tallocation=%u\n\tsubbands=%u\n\tblocks=%u\n\tbitpool=%u\n",
649 u->a2dp.sbc.allocation, u->a2dp.sbc.subbands, u->a2dp.sbc.blocks, u->a2dp.sbc.bitpool);
650 } else
651 u->block_size = u->link_mtu;
652
653 return 0;
654 }
655
656 /* from IO thread */
657 static int start_stream_fd(struct userdata *u) {
658 union {
659 bt_audio_msg_header_t rsp;
660 struct bt_start_stream_req start_req;
661 struct bt_start_stream_rsp start_rsp;
662 struct bt_new_stream_ind streamfd_ind;
663 bt_audio_error_t error;
664 uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
665 } msg;
666 struct pollfd *pollfd;
667
668 pa_assert(u);
669 pa_assert(u->rtpoll);
670 pa_assert(!u->rtpoll_item);
671 pa_assert(u->stream_fd < 0);
672
673 memset(msg.buf, 0, BT_SUGGESTED_BUFFER_SIZE);
674 msg.start_req.h.type = BT_REQUEST;
675 msg.start_req.h.name = BT_START_STREAM;
676 msg.start_req.h.length = sizeof(msg.start_req);
677
678 if (service_send(u, &msg.start_req.h) < 0)
679 return -1;
680
681 if (service_expect(u, &msg.rsp, sizeof(msg), BT_START_STREAM, sizeof(msg.start_rsp)) < 0)
682 return -1;
683
684 if (service_expect(u, &msg.rsp, sizeof(msg), BT_NEW_STREAM, sizeof(msg.streamfd_ind)) < 0)
685 return -1;
686
687 if ((u->stream_fd = bt_audio_service_get_data_fd(u->service_fd)) < 0) {
688 pa_log("Failed to get stream fd from audio service.");
689 return -1;
690 }
691
692 /* setsockopt(u->stream_fd, SOL_SCO, SCO_TXBUFS, &period_count, sizeof(period_count)); */
693 /* setsockopt(u->stream_fd, SOL_SCO, SCO_SNDBUF, &period_count, sizeof(period_count)); */
694
695 pa_make_fd_nonblock(u->stream_fd);
696 pa_make_socket_low_delay(u->stream_fd);
697
698 u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
699 pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
700 pollfd->fd = u->stream_fd;
701 pollfd->events = pollfd->revents = 0;
702
703 u->read_index = 0;
704 u->write_index = 0;
705
706 return 0;
707 }
708
709 /* from IO thread */
710 static int stop_stream_fd(struct userdata *u) {
711 union {
712 bt_audio_msg_header_t rsp;
713 struct bt_stop_stream_req start_req;
714 struct bt_stop_stream_rsp start_rsp;
715 bt_audio_error_t error;
716 uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
717 } msg;
718 int r = 0;
719
720 pa_assert(u);
721 pa_assert(u->rtpoll);
722 pa_assert(u->rtpoll_item);
723 pa_assert(u->stream_fd >= 0);
724
725 pa_rtpoll_item_free(u->rtpoll_item);
726 u->rtpoll_item = NULL;
727
728 memset(msg.buf, 0, BT_SUGGESTED_BUFFER_SIZE);
729 msg.start_req.h.type = BT_REQUEST;
730 msg.start_req.h.name = BT_STOP_STREAM;
731 msg.start_req.h.length = sizeof(msg.start_req);
732
733 if (service_send(u, &msg.start_req.h) < 0 ||
734 service_expect(u, &msg.rsp, sizeof(msg), BT_STOP_STREAM, sizeof(msg.start_rsp)) < 0)
735 r = -1;
736
737 pa_close(u->stream_fd);
738 u->stream_fd = -1;
739
740 return r;
741 }
742
743 static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
744 struct userdata *u = PA_SINK(o)->userdata;
745 pa_bool_t failed = FALSE;
746 int r;
747
748 pa_assert(u->sink == PA_SINK(o));
749
750 pa_log_debug("got message: %d", code);
751 switch (code) {
752
753 case PA_SINK_MESSAGE_SET_STATE:
754
755 switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
756
757 case PA_SINK_SUSPENDED:
758 pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
759
760 /* Stop the device if the source is suspended as well */
761 if (!u->source || u->source->state == PA_SOURCE_SUSPENDED)
762 /* We deliberately ignore whether stopping
763 * actually worked. Since the stream_fd is
764 * closed it doesn't really matter */
765 stop_stream_fd(u);
766
767 break;
768
769 case PA_SINK_IDLE:
770 case PA_SINK_RUNNING:
771 if (u->sink->thread_info.state != PA_SINK_SUSPENDED)
772 break;
773
774 /* Resume the device if the source was suspended as well */
775 if (!u->source || u->source->state == PA_SOURCE_SUSPENDED)
776 if (start_stream_fd(u) < 0)
777 failed = TRUE;
778
779 u->started_at = pa_rtclock_usec();
780 break;
781
782 case PA_SINK_UNLINKED:
783 case PA_SINK_INIT:
784 case PA_SINK_INVALID_STATE:
785 ;
786 }
787 break;
788
789 case PA_SINK_MESSAGE_GET_LATENCY: {
790 *((pa_usec_t*) data) = 0;
791 return 0;
792 }
793 }
794
795 r = pa_sink_process_msg(o, code, data, offset, chunk);
796
797 return (r < 0 || !failed) ? r : -1;
798 }
799
800 static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
801 struct userdata *u = PA_SOURCE(o)->userdata;
802 pa_bool_t failed = FALSE;
803 int r;
804
805 pa_assert(u->source == PA_SOURCE(o));
806
807 pa_log_debug("got message: %d", code);
808 switch (code) {
809
810 case PA_SOURCE_MESSAGE_SET_STATE:
811
812 switch ((pa_source_state_t) PA_PTR_TO_UINT(data)) {
813
814 case PA_SOURCE_SUSPENDED:
815 pa_assert(PA_SOURCE_IS_OPENED(u->source->thread_info.state));
816
817 /* Stop the device if the sink is suspended as well */
818 if (!u->sink || u->sink->state == PA_SINK_SUSPENDED)
819 stop_stream_fd(u);
820
821 pa_smoother_pause(u->read_smoother, pa_rtclock_usec());
822 break;
823
824 case PA_SOURCE_IDLE:
825 case PA_SOURCE_RUNNING:
826 if (u->source->thread_info.state != PA_SOURCE_SUSPENDED)
827 break;
828
829 /* Resume the device if the sink was suspended as well */
830 if (!u->sink || u->sink->thread_info.state == PA_SINK_SUSPENDED)
831 if (start_stream_fd(u) < 0)
832 failed = TRUE;
833
834 pa_smoother_resume(u->read_smoother, pa_rtclock_usec());
835 break;
836
837 case PA_SOURCE_UNLINKED:
838 case PA_SOURCE_INIT:
839 case PA_SOURCE_INVALID_STATE:
840 ;
841 }
842 break;
843
844 case PA_SOURCE_MESSAGE_GET_LATENCY: {
845 *((pa_usec_t*) data) = 0;
846 return 0;
847 }
848
849 }
850
851 r = pa_source_process_msg(o, code, data, offset, chunk);
852
853 return (r < 0 || !failed) ? r : -1;
854 }
855
856 static int hsp_process_render(struct userdata *u) {
857 int ret = 0;
858 pa_memchunk memchunk;
859
860 pa_assert(u);
861 pa_assert(u->profile == PROFILE_HSP);
862 pa_assert(u->sink);
863
864 pa_sink_render_full(u->sink, u->block_size, &memchunk);
865
866 for (;;) {
867 ssize_t l;
868 const void *p;
869
870 p = (const uint8_t*) pa_memblock_acquire(memchunk.memblock) + memchunk.index;
871 l = pa_write(u->stream_fd, p, memchunk.length, &u->stream_write_type);
872 pa_memblock_release(memchunk.memblock);
873
874 pa_log_debug("Memblock written to socket: %lli bytes", (long long) l);
875
876 pa_assert(l != 0);
877
878 if (l < 0) {
879 if (errno == EINTR || errno == EAGAIN)
880 continue;
881 else {
882 pa_log_error("Failed to write data to SCO socket: %s", pa_cstrerror(errno));
883 ret = -1;
884 break;
885 }
886 } else {
887 pa_assert((size_t) l <= memchunk.length);
888
889 memchunk.index += (size_t) l;
890 memchunk.length -= (size_t) l;
891
892 u->write_index += (uint64_t) l;
893
894 if (memchunk.length <= 0)
895 break;
896 }
897 }
898
899 pa_memblock_unref(memchunk.memblock);
900
901 return ret;
902 }
903
904 static int hsp_process_push(struct userdata *u) {
905 int ret = 0;
906 pa_memchunk memchunk;
907
908 pa_assert(u);
909 pa_assert(u->profile == PROFILE_HSP);
910 pa_assert(u->source);
911
912 memchunk.memblock = pa_memblock_new(u->core->mempool, u->block_size);
913 memchunk.index = memchunk.length = 0;
914
915 for (;;) {
916 ssize_t l;
917 void *p;
918
919 p = pa_memblock_acquire(memchunk.memblock);
920 l = pa_read(u->stream_fd, p, pa_memblock_get_length(memchunk.memblock), &u->stream_read_type);
921 pa_memblock_release(memchunk.memblock);
922
923 if (l <= 0) {
924 if (l < 0 && (errno == EINTR || errno == EAGAIN))
925 continue;
926 else {
927 pa_log_error("Failed to read data from SCO socket: %s", l < 0 ? pa_cstrerror(errno) : "EOF");
928 ret = -1;
929 break;
930 }
931 } else {
932 memchunk.length = (size_t) l;
933 u->read_index += (uint64_t) l;
934
935 pa_source_post(u->source, &memchunk);
936 break;
937 }
938 }
939
940 pa_memblock_unref(memchunk.memblock);
941
942 return ret;
943 }
944
945 static int a2dp_process_render(struct userdata *u) {
946 size_t frame_size;
947 struct a2dp_info *a2dp;
948 struct rtp_header *header;
949 struct rtp_payload *payload;
950 size_t left;
951 void *d;
952 const void *p;
953 unsigned frame_count;
954 int written;
955 uint64_t writing_at;
956
957 pa_assert(u);
958 pa_assert(u->profile == PROFILE_A2DP);
959 pa_assert(u->sink);
960
961 a2dp = &u->a2dp;
962
963 if (a2dp->buffer_size < u->link_mtu) {
964 a2dp->buffer_size = 2*u->link_mtu;
965 pa_xfree(a2dp->buffer);
966 a2dp->buffer = pa_xmalloc(a2dp->buffer_size);
967 }
968
969 header = (struct rtp_header*) a2dp->buffer;
970 payload = (struct rtp_payload*) ((uint8_t*) a2dp->buffer + sizeof(*header));
971 d = (uint8_t*) a2dp->buffer + sizeof(*header) + sizeof(*payload);
972 left = a2dp->buffer_size - sizeof(*header) - sizeof(*payload);
973
974 frame_size = sbc_get_frame_length(&a2dp->sbc);
975 frame_count = 0;
976
977 writing_at = u->write_index;
978
979 do {
980 int encoded;
981
982 if (!u->write_memchunk.memblock)
983 pa_sink_render_full(u->sink, u->block_size, &u->write_memchunk);
984
985 p = (const uint8_t*) pa_memblock_acquire(u->write_memchunk.memblock) + u->write_memchunk.index;
986 encoded = sbc_encode(&a2dp->sbc,
987 (void*) p, u->write_memchunk.length,
988 d, left,
989 &written);
990
991 PA_ONCE_BEGIN {
992 pa_log_debug("Using SBC encoder implementation: %s", pa_strnull(sbc_get_implementation_info(&a2dp->sbc)));
993 } PA_ONCE_END;
994
995 pa_memblock_release(u->write_memchunk.memblock);
996
997 if (encoded <= 0) {
998 pa_log_error("SBC encoding error (%d)", encoded);
999 return -1;
1000 }
1001
1002 pa_assert(written >= 0);
1003
1004 pa_assert((size_t) encoded <= u->write_memchunk.length);
1005 pa_assert((size_t) written <= left);
1006
1007 /* pa_log_debug("SBC: encoded: %d; written: %d", encoded, written); */
1008
1009 u->write_memchunk.index += encoded;
1010 u->write_memchunk.length -= encoded;
1011
1012 if (u->write_memchunk.length <= 0) {
1013 pa_memblock_unref(u->write_memchunk.memblock);
1014 pa_memchunk_reset(&u->write_memchunk);
1015 }
1016
1017 u->write_index += encoded;
1018
1019 d = (uint8_t*) d + written;
1020 left -= written;
1021
1022 frame_count++;
1023
1024 } while ((uint8_t*) d - (uint8_t*) a2dp->buffer + written < (ptrdiff_t) u->link_mtu);
1025
1026 /* write it to the fifo */
1027 memset(a2dp->buffer, 0, sizeof(*header) + sizeof(*payload));
1028 payload->frame_count = frame_count;
1029 header->v = 2;
1030 header->pt = 1;
1031 header->sequence_number = htons(a2dp->seq_num++);
1032 header->timestamp = htonl(writing_at / frame_size);
1033 header->ssrc = htonl(1);
1034
1035 p = a2dp->buffer;
1036 left = (uint8_t*) d - (uint8_t*) a2dp->buffer;
1037
1038 for (;;) {
1039 ssize_t l;
1040
1041 l = pa_write(u->stream_fd, p, left, &u->stream_write_type);
1042 /* pa_log_debug("write: requested %lu bytes; written %li bytes; mtu=%li", (unsigned long) left, (long) l, (unsigned long) u->link_mtu); */
1043
1044 pa_assert(l != 0);
1045
1046 if (l < 0) {
1047 if (errno == EINTR || errno == EAGAIN)
1048 continue;
1049 else {
1050 pa_log_error("Failed to write data to socket: %s", pa_cstrerror(errno));
1051 return -1;
1052 }
1053 } else {
1054 pa_assert((size_t) l <= left);
1055
1056 d = (uint8_t*) d + l;
1057 left -= l;
1058
1059 if (left <= 0)
1060 break;
1061 }
1062 }
1063
1064 return 0;
1065 }
1066
1067 static void thread_func(void *userdata) {
1068 struct userdata *u = userdata;
1069 pa_bool_t do_write = FALSE, writable = FALSE;
1070
1071 pa_assert(u);
1072
1073 pa_log_debug("IO Thread starting up");
1074
1075 if (u->core->realtime_scheduling)
1076 pa_make_realtime(u->core->realtime_priority);
1077
1078 if (start_stream_fd(u) < 0)
1079 goto fail;
1080
1081 pa_thread_mq_install(&u->thread_mq);
1082 pa_rtpoll_install(u->rtpoll);
1083
1084 pa_smoother_set_time_offset(u->read_smoother, pa_rtclock_usec());
1085
1086 for (;;) {
1087 struct pollfd *pollfd;
1088 int ret;
1089 pa_bool_t disable_timer = TRUE;
1090
1091 pollfd = u->rtpoll_item ? pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL) : NULL;
1092
1093 if (u->source && PA_SOURCE_IS_LINKED(u->source->thread_info.state)) {
1094
1095 if (pollfd && (pollfd->revents & POLLIN)) {
1096
1097 if (hsp_process_push(u) < 0)
1098 goto fail;
1099
1100 /* We just read something, so we are supposed to write something, too */
1101 do_write = TRUE;
1102 }
1103 }
1104
1105 if (u->sink && PA_SINK_IS_LINKED(u->sink->thread_info.state)) {
1106
1107 if (u->sink->thread_info.rewind_requested)
1108 pa_sink_process_rewind(u->sink, 0);
1109
1110 if (pollfd) {
1111 if (pollfd->revents & POLLOUT)
1112 writable = TRUE;
1113
1114 if ((!u->source || !PA_SOURCE_IS_LINKED(u->source->thread_info.state)) && !do_write && writable) {
1115 pa_usec_t time_passed;
1116 uint64_t should_have_written;
1117
1118 /* Hmm, there is no input stream we could synchronize
1119 * to. So let's do things by time */
1120
1121 time_passed = pa_rtclock_usec() - u->started_at;
1122 should_have_written = pa_usec_to_bytes(time_passed, &u->sink->sample_spec);
1123
1124 do_write = u->write_index <= should_have_written ;
1125 /* pa_log_debug("Time has come: %s", pa_yes_no(do_write)); */
1126 }
1127
1128 if (writable && do_write) {
1129
1130 if (u->profile == PROFILE_A2DP) {
1131 if (a2dp_process_render(u) < 0)
1132 goto fail;
1133 } else {
1134 if (hsp_process_render(u) < 0)
1135 goto fail;
1136 }
1137
1138 do_write = FALSE;
1139 writable = FALSE;
1140 }
1141
1142 if ((!u->source || !PA_SOURCE_IS_LINKED(u->source->thread_info.state)) && !do_write) {
1143 pa_usec_t time_passed, next_write_at, sleep_for;
1144
1145 /* Hmm, there is no input stream we could synchronize
1146 * to. So let's estimate when we need to wake up the latest */
1147
1148 time_passed = pa_rtclock_usec() - u->started_at;
1149 next_write_at = pa_bytes_to_usec(u->write_index, &u->sink->sample_spec);
1150 sleep_for = time_passed < next_write_at ? next_write_at - time_passed : 0;
1151
1152 /* 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); */
1153
1154 pa_rtpoll_set_timer_relative(u->rtpoll, sleep_for);
1155 disable_timer = FALSE;
1156 }
1157 }
1158 }
1159
1160 if (disable_timer)
1161 pa_rtpoll_set_timer_disabled(u->rtpoll);
1162
1163 /* Hmm, nothing to do. Let's sleep */
1164 if (pollfd)
1165 pollfd->events = (short) (((u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state) && !writable) ? POLLOUT : 0) |
1166 (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state) ? POLLIN : 0));
1167
1168 if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
1169 goto fail;
1170
1171 if (ret == 0)
1172 goto finish;
1173
1174 pollfd = u->rtpoll_item ? pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL) : NULL;
1175
1176 if (pollfd && (pollfd->revents & ~(POLLOUT|POLLIN))) {
1177 pa_log_error("FD error.");
1178 goto fail;
1179 }
1180 }
1181
1182 fail:
1183 /* If this was no regular exit from the loop we have to continue processing messages until we receive PA_MESSAGE_SHUTDOWN */
1184 pa_log_debug("IO thread failed");
1185 pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
1186 pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
1187
1188 finish:
1189 pa_log_debug("IO thread shutting down");
1190 }
1191
1192 /* static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *msg, void *userdata) { */
1193 /* DBusMessageIter arg_i; */
1194 /* DBusError err; */
1195 /* const char *value; */
1196 /* struct userdata *u; */
1197
1198 /* pa_assert(bus); */
1199 /* pa_assert(msg); */
1200 /* pa_assert(userdata); */
1201 /* u = userdata; */
1202
1203 /* pa_log_debug("dbus: interface=%s, path=%s, member=%s\n", */
1204 /* dbus_message_get_interface(msg), */
1205 /* dbus_message_get_path(msg), */
1206 /* dbus_message_get_member(msg)); */
1207
1208 /* dbus_error_init(&err); */
1209
1210 /* if (!dbus_message_has_path(msg, u->path)) */
1211 /* goto done; */
1212
1213 /* if (dbus_message_is_signal(msg, "org.bluez.Headset", "PropertyChanged") || */
1214 /* dbus_message_is_signal(msg, "org.bluez.AudioSink", "PropertyChanged")) { */
1215
1216 /* struct device *d; */
1217 /* const char *profile; */
1218 /* DBusMessageIter variant_i; */
1219 /* dbus_uint16_t gain; */
1220
1221 /* if (!dbus_message_iter_init(msg, &arg_i)) { */
1222 /* pa_log("dbus: message has no parameters"); */
1223 /* goto done; */
1224 /* } */
1225
1226 /* if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_STRING) { */
1227 /* pa_log("Property name not a string."); */
1228 /* goto done; */
1229 /* } */
1230
1231 /* dbus_message_iter_get_basic(&arg_i, &value); */
1232
1233 /* if (!dbus_message_iter_next(&arg_i)) { */
1234 /* pa_log("Property value missing"); */
1235 /* goto done; */
1236 /* } */
1237
1238 /* if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_VARIANT) { */
1239 /* pa_log("Property value not a variant."); */
1240 /* goto done; */
1241 /* } */
1242
1243 /* dbus_message_iter_recurse(&arg_i, &variant_i); */
1244
1245 /* if (dbus_message_iter_get_arg_type(&variant_i) != DBUS_TYPE_UINT16) { */
1246 /* dbus_message_iter_get_basic(&variant_i, &gain); */
1247
1248 /* if (pa_streq(value, "SpeakerGain")) { */
1249 /* pa_log("spk gain: %d", gain); */
1250 /* pa_cvolume_set(&u->sink->virtual_volume, 1, (pa_volume_t) (gain * PA_VOLUME_NORM / 15)); */
1251 /* pa_subscription_post(u->sink->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, u->sink->index); */
1252 /* } else { */
1253 /* pa_log("mic gain: %d", gain); */
1254 /* if (!u->source) */
1255 /* goto done; */
1256
1257 /* pa_cvolume_set(&u->source->virtual_volume, 1, (pa_volume_t) (gain * PA_VOLUME_NORM / 15)); */
1258 /* pa_subscription_post(u->source->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, u->source->index); */
1259 /* } */
1260 /* } */
1261 /* } */
1262
1263 /* done: */
1264 /* dbus_error_free(&err); */
1265 /* return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; */
1266 /* } */
1267
1268 /* static int sink_get_volume_cb(pa_sink *s) { */
1269 /* struct userdata *u = s->userdata; */
1270 /* pa_assert(u); */
1271
1272 /* /\* refresh? *\/ */
1273
1274 /* return 0; */
1275 /* } */
1276
1277 /* static int source_get_volume_cb(pa_source *s) { */
1278 /* struct userdata *u = s->userdata; */
1279 /* pa_assert(u); */
1280
1281 /* /\* refresh? *\/ */
1282
1283 /* return 0; */
1284 /* } */
1285
1286 /* static int sink_set_volume_cb(pa_sink *s) { */
1287 /* DBusError e; */
1288 /* DBusMessage *m, *r; */
1289 /* DBusMessageIter it, itvar; */
1290 /* dbus_uint16_t vol; */
1291 /* const char *spkgain = "SpeakerGain"; */
1292 /* struct userdata *u = s->userdata; */
1293 /* pa_assert(u); */
1294
1295 /* dbus_error_init(&e); */
1296
1297 /* vol = ((float) pa_cvolume_max(&s->virtual_volume) / PA_VOLUME_NORM) * 15; */
1298 /* pa_log_debug("set headset volume: %d", vol); */
1299
1300 /* pa_assert_se(m = dbus_message_new_method_call("org.bluez", u->path, "org.bluez.Headset", "SetProperty")); */
1301 /* dbus_message_iter_init_append(m, &it); */
1302 /* dbus_message_iter_append_basic(&it, DBUS_TYPE_STRING, &spkgain); */
1303 /* dbus_message_iter_open_container(&it, DBUS_TYPE_VARIANT, DBUS_TYPE_UINT16_AS_STRING, &itvar); */
1304 /* dbus_message_iter_append_basic(&itvar, DBUS_TYPE_UINT16, &vol); */
1305 /* dbus_message_iter_close_container(&it, &itvar); */
1306
1307 /* r = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u->conn), m, -1, &e); */
1308
1309 /* finish: */
1310 /* if (m) */
1311 /* dbus_message_unref(m); */
1312 /* if (r) */
1313 /* dbus_message_unref(r); */
1314
1315 /* dbus_error_free(&e); */
1316
1317 /* return 0; */
1318 /* } */
1319
1320 /* static int source_set_volume_cb(pa_source *s) { */
1321 /* dbus_uint16_t vol; */
1322 /* struct userdata *u = s->userdata; */
1323 /* pa_assert(u); */
1324
1325 /* vol = ((float)pa_cvolume_max(&s->virtual_volume) / PA_VOLUME_NORM) * 15; */
1326
1327 /* pa_log_debug("set headset mic volume: %d (not implemented yet)", vol); */
1328
1329 /* return 0; */
1330 /* } */
1331
1332 static char *get_name(const char *type, pa_modargs *ma, const char *device_id, pa_bool_t *namereg_fail) {
1333 char *t;
1334 const char *n;
1335
1336 pa_assert(type);
1337 pa_assert(ma);
1338 pa_assert(device_id);
1339 pa_assert(namereg_fail);
1340
1341 t = pa_sprintf_malloc("%s_name", type);
1342 n = pa_modargs_get_value(ma, t, NULL);
1343 pa_xfree(t);
1344
1345 if (n) {
1346 *namereg_fail = TRUE;
1347 return pa_xstrdup(n);
1348 }
1349
1350 if ((n = pa_modargs_get_value(ma, "name", NULL)))
1351 *namereg_fail = TRUE;
1352 else {
1353 n = device_id;
1354 *namereg_fail = FALSE;
1355 }
1356
1357 return pa_sprintf_malloc("bluez_%s.%s", type, n);
1358 }
1359
1360 #define USE_SCO_OVER_PCM(u) (u->profile == PROFILE_HSP && (u->hsp.sco_sink && u->hsp.sco_source))
1361
1362 static void sco_over_pcm_state_update(struct userdata *u) {
1363 pa_assert(u);
1364 pa_assert(USE_SCO_OVER_PCM(u));
1365
1366 if (PA_SINK_IS_OPENED(pa_sink_get_state(u->hsp.sco_sink)) ||
1367 PA_SOURCE_IS_OPENED(pa_source_get_state(u->hsp.sco_source))) {
1368
1369 if (u->service_fd >= 0)
1370 return;
1371
1372 pa_log_debug("Resuming SCO over PCM");
1373 if ((init_bt(u) < 0) || (init_profile(u) < 0))
1374 pa_log("Can't resume SCO over PCM");
1375
1376 } else {
1377
1378 if (u->service_fd < 0)
1379 return;
1380
1381 pa_log_debug("Closing SCO over PCM");
1382 pa_close(u->service_fd);
1383 u->service_fd = -1;
1384 }
1385 }
1386
1387 static pa_hook_result_t sink_state_changed_cb(pa_core *c, pa_sink *s, struct userdata *u) {
1388 pa_assert(c);
1389 pa_sink_assert_ref(s);
1390 pa_assert(u);
1391
1392 if (s != u->hsp.sco_sink)
1393 return PA_HOOK_OK;
1394
1395 sco_over_pcm_state_update(u);
1396
1397 return PA_HOOK_OK;
1398 }
1399
1400 static pa_hook_result_t source_state_changed_cb(pa_core *c, pa_source *s, struct userdata *u) {
1401 pa_assert(c);
1402 pa_source_assert_ref(s);
1403 pa_assert(u);
1404
1405 if (s != u->hsp.sco_source)
1406 return PA_HOOK_OK;
1407
1408 sco_over_pcm_state_update(u);
1409
1410 return PA_HOOK_OK;
1411 }
1412
1413 static int add_sink(struct userdata *u) {
1414
1415 if (USE_SCO_OVER_PCM(u)) {
1416 pa_proplist *p;
1417
1418 u->sink = u->hsp.sco_sink;
1419 p = pa_proplist_new();
1420 pa_proplist_sets(p, "bluetooth.protocol", "sco");
1421 pa_proplist_update(u->sink->proplist, PA_UPDATE_MERGE, p);
1422 pa_proplist_free(p);
1423
1424 if (!u->hsp.sink_state_changed_slot)
1425 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);
1426
1427 } else {
1428 pa_sink_new_data data;
1429 pa_bool_t b;
1430
1431 pa_sink_new_data_init(&data);
1432 data.driver = __FILE__;
1433 data.module = u->module;
1434 pa_sink_new_data_set_sample_spec(&data, &u->sample_spec);
1435 pa_proplist_sets(data.proplist, "bluetooth.protocol", u->profile == PROFILE_A2DP ? "a2dp" : "sco");
1436 data.card = u->card;
1437 data.name = get_name("sink", u->modargs, u->device->address, &b);
1438 data.namereg_fail = b;
1439
1440 u->sink = pa_sink_new(u->core, &data, PA_SINK_HARDWARE|PA_SINK_LATENCY);
1441 pa_sink_new_data_done(&data);
1442
1443 if (!u->sink) {
1444 pa_log_error("Failed to create sink");
1445 return -1;
1446 }
1447
1448 u->sink->userdata = u;
1449 u->sink->parent.process_msg = sink_process_msg;
1450 }
1451
1452 /* u->sink->get_volume = sink_get_volume_cb; */
1453 /* u->sink->set_volume = sink_set_volume_cb; */
1454
1455 return 0;
1456 }
1457
1458 static int add_source(struct userdata *u) {
1459 pa_proplist *p;
1460
1461 if (USE_SCO_OVER_PCM(u)) {
1462 u->source = u->hsp.sco_source;
1463 p = pa_proplist_new();
1464 pa_proplist_sets(p, "bluetooth.protocol", "sco");
1465 pa_proplist_update(u->source->proplist, PA_UPDATE_MERGE, p);
1466 pa_proplist_free(p);
1467
1468 if (!u->hsp.source_state_changed_slot)
1469 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);
1470
1471 } else {
1472 pa_source_new_data data;
1473 pa_bool_t b;
1474
1475 pa_source_new_data_init(&data);
1476 data.driver = __FILE__;
1477 data.module = u->module;
1478 pa_source_new_data_set_sample_spec(&data, &u->sample_spec);
1479 pa_proplist_sets(data.proplist, "bluetooth.protocol", u->profile == PROFILE_A2DP ? "a2dp" : "sco");
1480 data.card = u->card;
1481 data.name = get_name("source", u->modargs, u->device->address, &b);
1482 data.namereg_fail = b;
1483
1484 u->source = pa_source_new(u->core, &data, PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY);
1485 pa_source_new_data_done(&data);
1486
1487 if (!u->source) {
1488 pa_log_error("Failed to create source");
1489 return -1;
1490 }
1491
1492 u->source->userdata = u;
1493 u->source->parent.process_msg = source_process_msg;
1494 }
1495
1496 /* u->source->get_volume = source_get_volume_cb; */
1497 /* u->source->set_volume = source_set_volume_cb; */
1498
1499 p = pa_proplist_new();
1500 pa_proplist_sets(p, "bluetooth.nrec", pa_yes_no(u->hsp.pcm_capabilities.flags & BT_PCM_FLAG_NREC));
1501 pa_proplist_update(u->source->proplist, PA_UPDATE_MERGE, p);
1502 pa_proplist_free(p);
1503
1504 return 0;
1505 }
1506
1507 static void shutdown_bt(struct userdata *u) {
1508 pa_assert(u);
1509
1510 if (u->stream_fd >= 0) {
1511 pa_close(u->stream_fd);
1512 u->stream_fd = -1;
1513 }
1514
1515 if (u->service_fd >= 0) {
1516 pa_close(u->service_fd);
1517 u->service_fd = -1;
1518 }
1519 }
1520
1521 static int init_bt(struct userdata *u) {
1522 pa_assert(u);
1523
1524 shutdown_bt(u);
1525
1526 u->stream_write_type = u->stream_read_type = 0;
1527 u->service_write_type = u->service_write_type = 0;
1528
1529 if ((u->service_fd = bt_audio_service_open()) < 0) {
1530 pa_log_error("Couldn't connect to bluetooth audio service");
1531 return -1;
1532 }
1533
1534 pa_log_debug("Connected to the bluetooth audio service");
1535
1536 return 0;
1537 }
1538
1539 static int setup_bt(struct userdata *u) {
1540 pa_assert(u);
1541
1542 if (get_caps(u) < 0)
1543 return -1;
1544
1545 pa_log_debug("Got device capabilities");
1546
1547 if (set_conf(u) < 0)
1548 return -1;
1549
1550 pa_log_debug("Connection to the device configured");
1551
1552 if (USE_SCO_OVER_PCM(u)) {
1553 pa_log_debug("Configured to use SCO over PCM");
1554 return 0;
1555 }
1556
1557 pa_log_debug("Got the stream socket");
1558
1559 return 0;
1560 }
1561
1562 static int init_profile(struct userdata *u) {
1563 int r = 0;
1564 pa_assert(u);
1565 pa_assert(u->profile != PROFILE_OFF);
1566
1567 if (setup_bt(u) < 0)
1568 return -1;
1569
1570 if (u->profile == PROFILE_A2DP ||
1571 u->profile == PROFILE_HSP)
1572 if (add_sink(u) < 0)
1573 r = -1;
1574
1575 if (u->profile == PROFILE_HSP)
1576 if (add_source(u) < 0)
1577 r = -1;
1578
1579 return r;
1580 }
1581
1582 static void stop_thread(struct userdata *u) {
1583 pa_assert(u);
1584
1585 if (u->thread) {
1586 pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL);
1587 pa_thread_free(u->thread);
1588 u->thread = NULL;
1589 }
1590
1591 if (u->rtpoll_item) {
1592 pa_rtpoll_item_free(u->rtpoll_item);
1593 u->rtpoll_item = NULL;
1594 }
1595
1596 if (u->hsp.sink_state_changed_slot) {
1597 pa_hook_slot_free(u->hsp.sink_state_changed_slot);
1598 u->hsp.sink_state_changed_slot = NULL;
1599 }
1600
1601 if (u->hsp.source_state_changed_slot) {
1602 pa_hook_slot_free(u->hsp.source_state_changed_slot);
1603 u->hsp.source_state_changed_slot = NULL;
1604 }
1605
1606 if (u->sink) {
1607 pa_sink_unref(u->sink);
1608 u->sink = NULL;
1609 }
1610
1611 if (u->source) {
1612 pa_source_unref(u->source);
1613 u->source = NULL;
1614 }
1615
1616 if (u->rtpoll) {
1617 pa_thread_mq_done(&u->thread_mq);
1618
1619 pa_rtpoll_free(u->rtpoll);
1620 u->rtpoll = NULL;
1621 }
1622 }
1623
1624 static int start_thread(struct userdata *u) {
1625 pa_assert(u);
1626 pa_assert(!u->thread);
1627 pa_assert(!u->rtpoll);
1628 pa_assert(!u->rtpoll_item);
1629
1630 if (USE_SCO_OVER_PCM(u)) {
1631 pa_sink_ref(u->sink);
1632 pa_source_ref(u->source);
1633 return 0;
1634 }
1635
1636 u->rtpoll = pa_rtpoll_new();
1637 pa_thread_mq_init(&u->thread_mq, u->core->mainloop, u->rtpoll);
1638
1639 if (!(u->thread = pa_thread_new(thread_func, u))) {
1640 pa_log_error("Failed to create IO thread");
1641 stop_thread(u);
1642 return -1;
1643 }
1644
1645 if (u->sink) {
1646 pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
1647 pa_sink_set_rtpoll(u->sink, u->rtpoll);
1648 pa_sink_put(u->sink);
1649 }
1650
1651 if (u->source) {
1652 pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
1653 pa_source_set_rtpoll(u->source, u->rtpoll);
1654 pa_source_put(u->source);
1655 }
1656
1657 return 0;
1658 }
1659
1660 static int card_set_profile(pa_card *c, pa_card_profile *new_profile) {
1661 struct userdata *u;
1662 enum profile *d;
1663 pa_queue *inputs = NULL, *outputs = NULL;
1664
1665 pa_assert(c);
1666 pa_assert(new_profile);
1667 pa_assert_se(u = c->userdata);
1668
1669 d = PA_CARD_PROFILE_DATA(new_profile);
1670
1671 if (u->sink) {
1672 inputs = pa_sink_move_all_start(u->sink);
1673 if (!USE_SCO_OVER_PCM(u))
1674 pa_sink_unlink(u->sink);
1675 }
1676
1677 if (u->source) {
1678 outputs = pa_source_move_all_start(u->source);
1679 if (!USE_SCO_OVER_PCM(u))
1680 pa_source_unlink(u->source);
1681 }
1682
1683 stop_thread(u);
1684 shutdown_bt(u);
1685
1686 if (u->write_memchunk.memblock) {
1687 pa_memblock_unref(u->write_memchunk.memblock);
1688 pa_memchunk_reset(&u->write_memchunk);
1689 }
1690
1691 u->profile = *d;
1692 u->sample_spec = u->requested_sample_spec;
1693
1694 init_bt(u);
1695
1696 if (u->profile != PROFILE_OFF)
1697 init_profile(u);
1698
1699 if (u->sink || u->source)
1700 start_thread(u);
1701
1702 if (inputs) {
1703 if (u->sink)
1704 pa_sink_move_all_finish(u->sink, inputs, FALSE);
1705 else
1706 pa_sink_move_all_fail(inputs);
1707 }
1708
1709 if (outputs) {
1710 if (u->source)
1711 pa_source_move_all_finish(u->source, outputs, FALSE);
1712 else
1713 pa_source_move_all_fail(outputs);
1714 }
1715
1716 return 0;
1717 }
1718
1719 static int add_card(struct userdata *u, const char * default_profile) {
1720 pa_card_new_data data;
1721 pa_bool_t b;
1722 pa_card_profile *p;
1723 enum profile *d;
1724 const char *ff;
1725 char *n;
1726
1727 pa_card_new_data_init(&data);
1728 data.driver = __FILE__;
1729 data.module = u->module;
1730
1731 n = pa_bluetooth_cleanup_name(u->device->name);
1732 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_DESCRIPTION, n);
1733 pa_xfree(n);
1734 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->device->address);
1735 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_API, "bluez");
1736 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_CLASS, "sound");
1737 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_BUS, "bluetooth");
1738 if ((ff = pa_bluetooth_get_form_factor(u->device->class)))
1739 pa_proplist_sets(data.proplist, PA_PROP_DEVICE_FORM_FACTOR, ff);
1740 pa_proplist_sets(data.proplist, "bluez.path", u->device->path);
1741 pa_proplist_setf(data.proplist, "bluez.class", "0x%06x", (unsigned) u->device->class);
1742 pa_proplist_sets(data.proplist, "bluez.name", u->device->name);
1743 data.name = get_name("card", u->modargs, u->device->address, &b);
1744 data.namereg_fail = b;
1745
1746 data.profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1747
1748 if (u->device->audio_sink_info_valid > 0) {
1749 p = pa_card_profile_new("a2dp", _("High Fidelity Playback (A2DP)"), sizeof(enum profile));
1750 p->priority = 10;
1751 p->n_sinks = 1;
1752 p->n_sources = 0;
1753 p->max_sink_channels = 2;
1754 p->max_source_channels = 0;
1755
1756 d = PA_CARD_PROFILE_DATA(p);
1757 *d = PROFILE_A2DP;
1758
1759 pa_hashmap_put(data.profiles, p->name, p);
1760 }
1761
1762 if (u->device->headset_info_valid > 0) {
1763 p = pa_card_profile_new("hsp", _("Telephony Duplex (HSP/HFP)"), sizeof(enum profile));
1764 p->priority = 20;
1765 p->n_sinks = 1;
1766 p->n_sources = 1;
1767 p->max_sink_channels = 1;
1768 p->max_source_channels = 1;
1769
1770 d = PA_CARD_PROFILE_DATA(p);
1771 *d = PROFILE_HSP;
1772
1773 pa_hashmap_put(data.profiles, p->name, p);
1774 }
1775
1776 pa_assert(!pa_hashmap_isempty(data.profiles));
1777
1778 p = pa_card_profile_new("off", _("Off"), sizeof(enum profile));
1779 d = PA_CARD_PROFILE_DATA(p);
1780 *d = PROFILE_OFF;
1781 pa_hashmap_put(data.profiles, p->name, p);
1782
1783 if (default_profile) {
1784 if (pa_hashmap_get(data.profiles, default_profile))
1785 pa_card_new_data_set_profile(&data, default_profile);
1786 else
1787 pa_log_warn("Profile '%s' not valid or not supported by device.", default_profile);
1788 }
1789
1790 u->card = pa_card_new(u->core, &data);
1791 pa_card_new_data_done(&data);
1792
1793 if (!u->card) {
1794 pa_log("Failed to allocate card.");
1795 return -1;
1796 }
1797
1798 u->card->userdata = u;
1799 u->card->set_profile = card_set_profile;
1800
1801 d = PA_CARD_PROFILE_DATA(u->card->active_profile);
1802 u->profile = *d;
1803
1804 return 0;
1805 }
1806
1807 static int setup_dbus(struct userdata *u) {
1808 DBusError error;
1809
1810 dbus_error_init(&error);
1811
1812 u->connection = pa_dbus_bus_get(u->core, DBUS_BUS_SYSTEM, &error);
1813 if (dbus_error_is_set(&error) || (!u->connection)) {
1814 pa_log("Failed to get D-Bus connection: %s", error.message);
1815 dbus_error_free(&error);
1816 return -1;
1817 }
1818
1819 return 0;
1820 }
1821
1822 static int find_device(struct userdata *u, const char *address, const char *path) {
1823 pa_assert(u);
1824
1825 if (!address && !path) {
1826 pa_log_error("Failed to get device address/path from module arguments.");
1827 return -1;
1828 }
1829
1830 if (path) {
1831 if (!(u->device = pa_bluetooth_get_device(pa_dbus_connection_get(u->connection), path))) {
1832 pa_log_error("%s is not a valid BlueZ audio device.", path);
1833 return -1;
1834 }
1835
1836 if (address && !(pa_streq(u->device->address, address))) {
1837 pa_log_error("Passed path %s and address %s don't match.", path, address);
1838 return -1;
1839 }
1840 } else {
1841 if (!(u->device = pa_bluetooth_find_device(pa_dbus_connection_get(u->connection), address))) {
1842 pa_log_error("%s is not known.", address);
1843 return -1;
1844 }
1845 }
1846
1847 return 0;
1848 }
1849
1850 int pa__init(pa_module* m) {
1851 pa_modargs *ma;
1852 uint32_t channels;
1853 struct userdata *u;
1854 const char *address, *path;
1855
1856 pa_assert(m);
1857
1858 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
1859 pa_log_error("Failed to parse module arguments");
1860 goto fail;
1861 }
1862
1863 m->userdata = u = pa_xnew0(struct userdata, 1);
1864 u->module = m;
1865 u->core = m->core;
1866 u->service_fd = -1;
1867 u->stream_fd = -1;
1868 u->read_smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC*2, TRUE, 10);
1869 u->sample_spec = m->core->default_sample_spec;
1870 u->modargs = ma;
1871
1872 if (pa_modargs_get_value(ma, "sco_sink", NULL) &&
1873 !(u->hsp.sco_sink = pa_namereg_get(m->core, pa_modargs_get_value(ma, "sco_sink", NULL), PA_NAMEREG_SINK))) {
1874 pa_log("SCO sink not found");
1875 goto fail;
1876 }
1877
1878 if (pa_modargs_get_value(ma, "sco_source", NULL) &&
1879 !(u->hsp.sco_source = pa_namereg_get(m->core, pa_modargs_get_value(ma, "sco_source", NULL), PA_NAMEREG_SOURCE))) {
1880 pa_log("SCO source not found");
1881 goto fail;
1882 }
1883
1884 if (pa_modargs_get_value_u32(ma, "rate", &u->sample_spec.rate) < 0 ||
1885 u->sample_spec.rate <= 0 || u->sample_spec.rate > PA_RATE_MAX) {
1886 pa_log_error("Failed to get rate from module arguments");
1887 goto fail;
1888 }
1889
1890 channels = u->sample_spec.channels;
1891 if (pa_modargs_get_value_u32(ma, "channels", &channels) < 0 ||
1892 channels <= 0 || channels > PA_CHANNELS_MAX) {
1893 pa_log_error("Failed to get channels from module arguments");
1894 goto fail;
1895 }
1896 u->sample_spec.channels = (uint8_t) channels;
1897 u->requested_sample_spec = u->sample_spec;
1898
1899 if (setup_dbus(u) < 0)
1900 goto fail;
1901
1902 address = pa_modargs_get_value(ma, "address", NULL);
1903 path = pa_modargs_get_value(ma, "path", NULL);
1904
1905 if (find_device(u, address, path) < 0)
1906 goto fail;
1907
1908 pa_assert(u->device);
1909
1910 /* Add the card structure. This will also initialize the default profile */
1911 if (add_card(u, pa_modargs_get_value(ma, "profile", NULL)) < 0)
1912 goto fail;
1913
1914 /* Connect to the BT service and query capabilities */
1915 if (init_bt(u) < 0)
1916 goto fail;
1917
1918 if (u->profile != PROFILE_OFF)
1919 if (init_profile(u) < 0)
1920 goto fail;
1921
1922 /* if (u->path) { */
1923 /* DBusError err; */
1924 /* dbus_error_init(&err); */
1925 /* char *t; */
1926
1927
1928 /* if (!dbus_connection_add_filter(pa_dbus_connection_get(u->conn), filter_cb, u, NULL)) { */
1929 /* pa_log_error("Failed to add filter function"); */
1930 /* goto fail; */
1931 /* } */
1932
1933 /* if (u->transport == BT_CAPABILITIES_TRANSPORT_SCO || */
1934 /* u->transport == BT_CAPABILITIES_TRANSPORT_ANY) { */
1935 /* t = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged',path='%s'", u->path); */
1936 /* dbus_bus_add_match(pa_dbus_connection_get(u->conn), t, &err); */
1937 /* pa_xfree(t); */
1938
1939 /* if (dbus_error_is_set(&err)) { */
1940 /* pa_log_error("Unable to subscribe to org.bluez.Headset signals: %s: %s", err.name, err.message); */
1941 /* goto fail; */
1942 /* } */
1943 /* } */
1944
1945 /* if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP || */
1946 /* u->transport == BT_CAPABILITIES_TRANSPORT_ANY) { */
1947 /* t = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged',path='%s'", u->path); */
1948 /* dbus_bus_add_match(pa_dbus_connection_get(u->conn), t, &err); */
1949 /* pa_xfree(t); */
1950
1951 /* if (dbus_error_is_set(&err)) { */
1952 /* pa_log_error("Unable to subscribe to org.bluez.AudioSink signals: %s: %s", err.name, err.message); */
1953 /* goto fail; */
1954 /* } */
1955 /* } */
1956 /* } */
1957
1958 if (u->sink || u->source)
1959 if (start_thread(u) < 0)
1960 goto fail;
1961
1962 return 0;
1963
1964 fail:
1965 pa__done(m);
1966 return -1;
1967 }
1968
1969 int pa__get_n_used(pa_module *m) {
1970 struct userdata *u;
1971
1972 pa_assert(m);
1973 pa_assert_se(u = m->userdata);
1974
1975 return
1976 (u->sink ? pa_sink_linked_by(u->sink) : 0) +
1977 (u->source ? pa_source_linked_by(u->source) : 0);
1978 }
1979
1980 void pa__done(pa_module *m) {
1981 struct userdata *u;
1982 pa_assert(m);
1983
1984 if (!(u = m->userdata))
1985 return;
1986
1987 if (u->sink && !USE_SCO_OVER_PCM(u))
1988 pa_sink_unlink(u->sink);
1989
1990 if (u->source && !USE_SCO_OVER_PCM(u))
1991 pa_source_unlink(u->source);
1992
1993 stop_thread(u);
1994
1995 if (u->connection) {
1996 /* DBusError error; */
1997 /* char *t; */
1998
1999 /* if (u->transport == BT_CAPABILITIES_TRANSPORT_SCO || */
2000 /* u->transport == BT_CAPABILITIES_TRANSPORT_ANY) { */
2001
2002 /* t = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged',path='%s'", u->path); */
2003 /* dbus_error_init(&error); */
2004 /* dbus_bus_remove_match(pa_dbus_connection_get(u->conn), t, &error); */
2005 /* dbus_error_free(&error); */
2006 /* pa_xfree(t); */
2007 /* } */
2008
2009 /* if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP || */
2010 /* u->transport == BT_CAPABILITIES_TRANSPORT_ANY) { */
2011
2012 /* t = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged',path='%s'", u->path); */
2013 /* dbus_error_init(&error); */
2014 /* dbus_bus_remove_match(pa_dbus_connection_get(u->conn), t, &error); */
2015 /* dbus_error_free(&error); */
2016 /* pa_xfree(t); */
2017 /* } */
2018
2019 /* dbus_connection_remove_filter(pa_dbus_connection_get(u->conn), filter_cb, u); */
2020 pa_dbus_connection_unref(u->connection);
2021 }
2022
2023 if (u->card)
2024 pa_card_free(u->card);
2025
2026 if (u->read_smoother)
2027 pa_smoother_free(u->read_smoother);
2028
2029 shutdown_bt(u);
2030
2031 if (u->device)
2032 pa_bluetooth_device_free(u->device);
2033
2034 if (u->write_memchunk.memblock)
2035 pa_memblock_unref(u->write_memchunk.memblock);
2036
2037 if (u->a2dp.buffer)
2038 pa_xfree(u->a2dp.buffer);
2039
2040 sbc_finish(&u->a2dp.sbc);
2041
2042 if (u->modargs)
2043 pa_modargs_free(u->modargs);
2044
2045 pa_xfree(u);
2046 }