This file is part of PulseAudio.
Copyright 2008-2009 Joao Paulo Rechi Vita
+ Copyright 2011-2012 BMW Car IT GmbH.
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
#include <pulsecore/namereg.h>
#include <pulsecore/dbus-shared.h>
+#include <sbc/sbc.h>
+
#include "module-bluetooth-device-symdef.h"
#include "ipc.h"
-#include "sbc.h"
#include "a2dp-codecs.h"
#include "rtp.h"
#include "bluetooth-util.h"
pa_sample_spec sample_spec, requested_sample_spec;
- int service_fd;
int stream_fd;
- size_t link_mtu;
- size_t block_size;
+ size_t read_link_mtu;
+ size_t read_block_size;
+
+ size_t write_link_mtu;
+ size_t write_block_size;
struct a2dp_info a2dp;
struct hsp_info hsp;
pa_modargs *modargs;
int stream_write_type;
- int service_write_type, service_read_type;
pa_bool_t filter_added;
};
#define USE_SCO_OVER_PCM(u) (u->profile == PROFILE_HSP && (u->hsp.sco_sink && u->hsp.sco_source))
-static int init_bt(struct userdata *u);
static int init_profile(struct userdata *u);
-static int service_send(struct userdata *u, const bt_audio_msg_header_t *msg) {
- ssize_t r;
-
- pa_assert(u);
- pa_assert(msg);
- pa_assert(msg->length > 0);
-
- if (u->service_fd < 0) {
- pa_log_warn("Service not connected");
- return -1;
- }
-
- pa_log_debug("Sending %s -> %s",
- pa_strnull(bt_audio_strtype(msg->type)),
- pa_strnull(bt_audio_strname(msg->name)));
-
- if ((r = pa_loop_write(u->service_fd, msg, msg->length, &u->service_write_type)) == (ssize_t) msg->length)
- return 0;
-
- if (r < 0)
- pa_log_error("Error sending data to audio service: %s", pa_cstrerror(errno));
- else
- pa_log_error("Short write()");
-
- return -1;
-}
-
-static int service_recv(struct userdata *u, bt_audio_msg_header_t *msg, size_t room) {
- ssize_t r;
-
- pa_assert(u);
- pa_assert(u->service_fd >= 0);
- pa_assert(msg);
- pa_assert(room >= sizeof(*msg));
-
- pa_log_debug("Trying to receive message from audio service...");
-
- /* First, read the header */
- if ((r = pa_loop_read(u->service_fd, msg, sizeof(*msg), &u->service_read_type)) != sizeof(*msg))
- goto read_fail;
-
- if (msg->length < sizeof(*msg)) {
- pa_log_error("Invalid message size.");
- return -1;
- }
-
- if (msg->length > room) {
- pa_log_error("Not enough room.");
- return -1;
- }
-
- /* Secondly, read the payload */
- if (msg->length > sizeof(*msg)) {
-
- size_t remains = msg->length - sizeof(*msg);
-
- if ((r = pa_loop_read(u->service_fd,
- (uint8_t*) msg + sizeof(*msg),
- remains,
- &u->service_read_type)) != (ssize_t) remains)
- goto read_fail;
- }
-
- pa_log_debug("Received %s <- %s",
- pa_strnull(bt_audio_strtype(msg->type)),
- pa_strnull(bt_audio_strname(msg->name)));
-
- return 0;
-
-read_fail:
-
- if (r < 0)
- pa_log_error("Error receiving data from audio service: %s", pa_cstrerror(errno));
- else
- pa_log_error("Short read()");
-
- return -1;
-}
-
-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) {
- int r;
-
- pa_assert(u);
- pa_assert(u->service_fd >= 0);
- pa_assert(rsp);
-
- if ((r = service_recv(u, rsp, room)) < 0)
- return r;
-
- if ((rsp->type != BT_INDICATION && rsp->type != BT_RESPONSE) ||
- rsp->name != expected_name ||
- (expected_size > 0 && rsp->length != expected_size)) {
-
- if (rsp->type == BT_ERROR && rsp->length == sizeof(bt_audio_error_t))
- pa_log_error("Received error condition: %s", pa_cstrerror(((bt_audio_error_t*) rsp)->posix_errno));
- else
- pa_log_error("Bogus message %s received while %s was expected",
- pa_strnull(bt_audio_strname(rsp->name)),
- pa_strnull(bt_audio_strname(expected_name)));
- return -1;
- }
-
- return 0;
-}
-
-/* Run from main thread */
-static int parse_caps(struct userdata *u, uint8_t seid, const struct bt_get_capabilities_rsp *rsp) {
- uint16_t bytes_left;
- const codec_capabilities_t *codec;
-
- pa_assert(u);
- pa_assert(rsp);
-
- bytes_left = rsp->h.length - sizeof(*rsp);
-
- if (bytes_left < sizeof(codec_capabilities_t)) {
- pa_log_error("Packet too small to store codec information.");
- return -1;
- }
-
- codec = (codec_capabilities_t *) rsp->data; /** ALIGNMENT? **/
-
- pa_log_debug("Payload size is %lu %lu", (unsigned long) bytes_left, (unsigned long) sizeof(*codec));
-
- if (((u->profile == PROFILE_A2DP || u->profile == PROFILE_A2DP_SOURCE) && codec->transport != BT_CAPABILITIES_TRANSPORT_A2DP) ||
- ((u->profile == PROFILE_HSP || u->profile == PROFILE_HFGW) && codec->transport != BT_CAPABILITIES_TRANSPORT_SCO)) {
- pa_log_error("Got capabilities for wrong codec.");
- return -1;
- }
-
- if (u->profile == PROFILE_HSP || u->profile == PROFILE_HFGW) {
-
- if (bytes_left <= 0 || codec->length != sizeof(u->hsp.pcm_capabilities))
- return -1;
-
- pa_assert(codec->type == BT_HFP_CODEC_PCM);
-
- if (codec->configured && seid == 0)
- return codec->seid;
-
- memcpy(&u->hsp.pcm_capabilities, codec, sizeof(u->hsp.pcm_capabilities));
-
- } else if (u->profile == PROFILE_A2DP) {
-
- while (bytes_left > 0) {
- if ((codec->type == BT_A2DP_SBC_SINK) && !codec->lock)
- break;
-
- bytes_left -= codec->length;
- codec = (const codec_capabilities_t*) ((const uint8_t*) codec + codec->length);
- }
-
- if (bytes_left <= 0 || codec->length != sizeof(u->a2dp.sbc_capabilities))
- return -1;
-
- pa_assert(codec->type == BT_A2DP_SBC_SINK);
-
- if (codec->configured && seid == 0)
- return codec->seid;
-
- memcpy(&u->a2dp.sbc_capabilities, codec, sizeof(u->a2dp.sbc_capabilities));
-
- } else if (u->profile == PROFILE_A2DP_SOURCE) {
-
- while (bytes_left > 0) {
- if ((codec->type == BT_A2DP_SBC_SOURCE) && !codec->lock)
- break;
-
- bytes_left -= codec->length;
- codec = (const codec_capabilities_t*) ((const uint8_t*) codec + codec->length);
- }
-
- if (bytes_left <= 0 || codec->length != sizeof(u->a2dp.sbc_capabilities))
- return -1;
-
- pa_assert(codec->type == BT_A2DP_SBC_SOURCE);
-
- if (codec->configured && seid == 0)
- return codec->seid;
-
- memcpy(&u->a2dp.sbc_capabilities, codec, sizeof(u->a2dp.sbc_capabilities));
- }
-
- return 0;
-}
-
-/* Run from main thread */
-static int get_caps(struct userdata *u, uint8_t seid) {
- union {
- struct bt_get_capabilities_req getcaps_req;
- struct bt_get_capabilities_rsp getcaps_rsp;
- bt_audio_error_t error;
- uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
- } msg;
- int ret;
-
- pa_assert(u);
-
- memset(&msg, 0, sizeof(msg));
- msg.getcaps_req.h.type = BT_REQUEST;
- msg.getcaps_req.h.name = BT_GET_CAPABILITIES;
- msg.getcaps_req.h.length = sizeof(msg.getcaps_req);
- msg.getcaps_req.seid = seid;
-
- pa_strlcpy(msg.getcaps_req.object, u->path, sizeof(msg.getcaps_req.object));
- if (u->profile == PROFILE_A2DP || u->profile == PROFILE_A2DP_SOURCE)
- msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_A2DP;
- else {
- pa_assert(u->profile == PROFILE_HSP || u->profile == PROFILE_HFGW);
- msg.getcaps_req.transport = BT_CAPABILITIES_TRANSPORT_SCO;
- }
- msg.getcaps_req.flags = u->auto_connect ? BT_FLAG_AUTOCONNECT : 0;
-
- if (service_send(u, &msg.getcaps_req.h) < 0)
- return -1;
-
- if (service_expect(u, &msg.getcaps_rsp.h, sizeof(msg), BT_GET_CAPABILITIES, 0) < 0)
- return -1;
-
- ret = parse_caps(u, seid, &msg.getcaps_rsp);
- if (ret <= 0)
- return ret;
-
- return get_caps(u, ret);
-}
-
-/* Run from main thread */
-static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
-
- switch (freq) {
- case BT_SBC_SAMPLING_FREQ_16000:
- case BT_SBC_SAMPLING_FREQ_32000:
- return 53;
-
- case BT_SBC_SAMPLING_FREQ_44100:
-
- switch (mode) {
- case BT_A2DP_CHANNEL_MODE_MONO:
- case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
- return 31;
-
- case BT_A2DP_CHANNEL_MODE_STEREO:
- case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
- return 53;
-
- default:
- pa_log_warn("Invalid channel mode %u", mode);
- return 53;
- }
-
- case BT_SBC_SAMPLING_FREQ_48000:
-
- switch (mode) {
- case BT_A2DP_CHANNEL_MODE_MONO:
- case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
- return 29;
-
- case BT_A2DP_CHANNEL_MODE_STEREO:
- case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
- return 51;
-
- default:
- pa_log_warn("Invalid channel mode %u", mode);
- return 51;
- }
-
- default:
- pa_log_warn("Invalid sampling freq %u", freq);
- return 53;
- }
-}
-
-/* Run from main thread */
-static int setup_a2dp(struct userdata *u) {
- sbc_capabilities_t *cap;
- int i;
-
- static const struct {
- uint32_t rate;
- uint8_t cap;
- } freq_table[] = {
- { 16000U, BT_SBC_SAMPLING_FREQ_16000 },
- { 32000U, BT_SBC_SAMPLING_FREQ_32000 },
- { 44100U, BT_SBC_SAMPLING_FREQ_44100 },
- { 48000U, BT_SBC_SAMPLING_FREQ_48000 }
- };
-
- pa_assert(u);
- pa_assert(u->profile == PROFILE_A2DP || u->profile == PROFILE_A2DP_SOURCE);
-
- cap = &u->a2dp.sbc_capabilities;
-
- /* Find the lowest freq that is at least as high as the requested
- * sampling rate */
- for (i = 0; (unsigned) i < PA_ELEMENTSOF(freq_table); i++)
- if (freq_table[i].rate >= u->sample_spec.rate && (cap->frequency & freq_table[i].cap)) {
- u->sample_spec.rate = freq_table[i].rate;
- cap->frequency = freq_table[i].cap;
- break;
- }
-
- if ((unsigned) i == PA_ELEMENTSOF(freq_table)) {
- for (--i; i >= 0; i--) {
- if (cap->frequency & freq_table[i].cap) {
- u->sample_spec.rate = freq_table[i].rate;
- cap->frequency = freq_table[i].cap;
- break;
- }
- }
-
- if (i < 0) {
- pa_log("Not suitable sample rate");
- return -1;
- }
- }
-
- pa_assert((unsigned) i < PA_ELEMENTSOF(freq_table));
-
- if (cap->capability.configured)
- return 0;
-
- if (u->sample_spec.channels <= 1) {
- if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
- cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
- u->sample_spec.channels = 1;
- } else
- u->sample_spec.channels = 2;
- }
-
- if (u->sample_spec.channels >= 2) {
- u->sample_spec.channels = 2;
-
- if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
- cap->channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
- else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
- cap->channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
- else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
- cap->channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
- else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO) {
- cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
- u->sample_spec.channels = 1;
- } else {
- pa_log("No supported channel modes");
- return -1;
- }
- }
-
- if (cap->block_length & BT_A2DP_BLOCK_LENGTH_16)
- cap->block_length = BT_A2DP_BLOCK_LENGTH_16;
- else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_12)
- cap->block_length = BT_A2DP_BLOCK_LENGTH_12;
- else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_8)
- cap->block_length = BT_A2DP_BLOCK_LENGTH_8;
- else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_4)
- cap->block_length = BT_A2DP_BLOCK_LENGTH_4;
- else {
- pa_log_error("No supported block lengths");
- return -1;
- }
-
- if (cap->subbands & BT_A2DP_SUBBANDS_8)
- cap->subbands = BT_A2DP_SUBBANDS_8;
- else if (cap->subbands & BT_A2DP_SUBBANDS_4)
- cap->subbands = BT_A2DP_SUBBANDS_4;
- else {
- pa_log_error("No supported subbands");
- return -1;
- }
-
- if (cap->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS)
- cap->allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
- else if (cap->allocation_method & BT_A2DP_ALLOCATION_SNR)
- cap->allocation_method = BT_A2DP_ALLOCATION_SNR;
-
- cap->min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
- cap->max_bitpool = (uint8_t) PA_MIN(a2dp_default_bitpool(cap->frequency, cap->channel_mode), cap->max_bitpool);
-
- return 0;
-}
-
-/* Run from main thread */
-static void setup_sbc(struct a2dp_info *a2dp, enum profile p) {
- sbc_capabilities_t *active_capabilities;
-
- pa_assert(a2dp);
-
- active_capabilities = &a2dp->sbc_capabilities;
-
- if (a2dp->sbc_initialized)
- sbc_reinit(&a2dp->sbc, 0);
- else
- sbc_init(&a2dp->sbc, 0);
- a2dp->sbc_initialized = TRUE;
-
- switch (active_capabilities->frequency) {
- case BT_SBC_SAMPLING_FREQ_16000:
- a2dp->sbc.frequency = SBC_FREQ_16000;
- break;
- case BT_SBC_SAMPLING_FREQ_32000:
- a2dp->sbc.frequency = SBC_FREQ_32000;
- break;
- case BT_SBC_SAMPLING_FREQ_44100:
- a2dp->sbc.frequency = SBC_FREQ_44100;
- break;
- case BT_SBC_SAMPLING_FREQ_48000:
- a2dp->sbc.frequency = SBC_FREQ_48000;
- break;
- default:
- pa_assert_not_reached();
- }
-
- switch (active_capabilities->channel_mode) {
- case BT_A2DP_CHANNEL_MODE_MONO:
- a2dp->sbc.mode = SBC_MODE_MONO;
- break;
- case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
- a2dp->sbc.mode = SBC_MODE_DUAL_CHANNEL;
- break;
- case BT_A2DP_CHANNEL_MODE_STEREO:
- a2dp->sbc.mode = SBC_MODE_STEREO;
- break;
- case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
- a2dp->sbc.mode = SBC_MODE_JOINT_STEREO;
- break;
- default:
- pa_assert_not_reached();
- }
-
- switch (active_capabilities->allocation_method) {
- case BT_A2DP_ALLOCATION_SNR:
- a2dp->sbc.allocation = SBC_AM_SNR;
- break;
- case BT_A2DP_ALLOCATION_LOUDNESS:
- a2dp->sbc.allocation = SBC_AM_LOUDNESS;
- break;
- default:
- pa_assert_not_reached();
- }
-
- switch (active_capabilities->subbands) {
- case BT_A2DP_SUBBANDS_4:
- a2dp->sbc.subbands = SBC_SB_4;
- break;
- case BT_A2DP_SUBBANDS_8:
- a2dp->sbc.subbands = SBC_SB_8;
- break;
- default:
- pa_assert_not_reached();
- }
-
- switch (active_capabilities->block_length) {
- case BT_A2DP_BLOCK_LENGTH_4:
- a2dp->sbc.blocks = SBC_BLK_4;
- break;
- case BT_A2DP_BLOCK_LENGTH_8:
- a2dp->sbc.blocks = SBC_BLK_8;
- break;
- case BT_A2DP_BLOCK_LENGTH_12:
- a2dp->sbc.blocks = SBC_BLK_12;
- break;
- case BT_A2DP_BLOCK_LENGTH_16:
- a2dp->sbc.blocks = SBC_BLK_16;
- break;
- default:
- pa_assert_not_reached();
- }
-
- a2dp->min_bitpool = active_capabilities->min_bitpool;
- a2dp->max_bitpool = active_capabilities->max_bitpool;
-
- /* Set minimum bitpool for source to get the maximum possible block_size */
- a2dp->sbc.bitpool = p == PROFILE_A2DP ? a2dp->max_bitpool : a2dp->min_bitpool;
- a2dp->codesize = sbc_get_codesize(&a2dp->sbc);
- a2dp->frame_length = sbc_get_frame_length(&a2dp->sbc);
-}
-
-/* Run from main thread */
-static int set_conf(struct userdata *u) {
- union {
- struct bt_open_req open_req;
- struct bt_open_rsp open_rsp;
- struct bt_set_configuration_req setconf_req;
- struct bt_set_configuration_rsp setconf_rsp;
- bt_audio_error_t error;
- uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
- } msg;
-
- memset(&msg, 0, sizeof(msg));
- msg.open_req.h.type = BT_REQUEST;
- msg.open_req.h.name = BT_OPEN;
- msg.open_req.h.length = sizeof(msg.open_req);
-
- pa_strlcpy(msg.open_req.object, u->path, sizeof(msg.open_req.object));
- msg.open_req.seid = (u->profile == PROFILE_A2DP || u->profile == PROFILE_A2DP_SOURCE) ? u->a2dp.sbc_capabilities.capability.seid : BT_A2DP_SEID_RANGE + 1;
- msg.open_req.lock = (u->profile == PROFILE_A2DP) ? BT_WRITE_LOCK : BT_READ_LOCK | BT_WRITE_LOCK;
-
- if (service_send(u, &msg.open_req.h) < 0)
- return -1;
-
- if (service_expect(u, &msg.open_rsp.h, sizeof(msg), BT_OPEN, sizeof(msg.open_rsp)) < 0)
- return -1;
-
- if (u->profile == PROFILE_A2DP || u->profile == PROFILE_A2DP_SOURCE) {
- u->sample_spec.format = PA_SAMPLE_S16LE;
-
- if (setup_a2dp(u) < 0)
- return -1;
- } else {
- pa_assert(u->profile == PROFILE_HSP || u->profile == PROFILE_HFGW);
-
- u->sample_spec.format = PA_SAMPLE_S16LE;
- u->sample_spec.channels = 1;
- u->sample_spec.rate = 8000;
- }
-
- memset(&msg, 0, sizeof(msg));
- msg.setconf_req.h.type = BT_REQUEST;
- msg.setconf_req.h.name = BT_SET_CONFIGURATION;
- msg.setconf_req.h.length = sizeof(msg.setconf_req);
-
- if (u->profile == PROFILE_A2DP || u->profile == PROFILE_A2DP_SOURCE) {
- memcpy(&msg.setconf_req.codec, &u->a2dp.sbc_capabilities, sizeof(u->a2dp.sbc_capabilities));
- } else {
- msg.setconf_req.codec.transport = BT_CAPABILITIES_TRANSPORT_SCO;
- msg.setconf_req.codec.seid = BT_A2DP_SEID_RANGE + 1;
- msg.setconf_req.codec.length = sizeof(pcm_capabilities_t);
- }
- msg.setconf_req.h.length += msg.setconf_req.codec.length - sizeof(msg.setconf_req.codec);
-
- if (service_send(u, &msg.setconf_req.h) < 0)
- return -1;
-
- if (service_expect(u, &msg.setconf_rsp.h, sizeof(msg), BT_SET_CONFIGURATION, sizeof(msg.setconf_rsp)) < 0)
- return -1;
-
- u->link_mtu = msg.setconf_rsp.link_mtu;
-
- /* setup SBC encoder now we agree on parameters */
- if (u->profile == PROFILE_A2DP || u->profile == PROFILE_A2DP_SOURCE) {
- setup_sbc(&u->a2dp, u->profile);
-
- u->block_size =
- ((u->link_mtu - sizeof(struct rtp_header) - sizeof(struct rtp_payload))
- / u->a2dp.frame_length
- * u->a2dp.codesize);
-
- pa_log_info("SBC parameters:\n\tallocation=%u\n\tsubbands=%u\n\tblocks=%u\n\tbitpool=%u\n",
- u->a2dp.sbc.allocation, u->a2dp.sbc.subbands, u->a2dp.sbc.blocks, u->a2dp.sbc.bitpool);
- } else
- u->block_size = u->link_mtu;
-
- return 0;
-}
-
/* from IO thread */
static void a2dp_set_bitpool(struct userdata *u, uint8_t bitpool)
{
pa_log_debug("Bitpool has changed to %u", a2dp->sbc.bitpool);
- u->block_size =
- (u->link_mtu - sizeof(struct rtp_header) - sizeof(struct rtp_payload))
- / a2dp->frame_length * a2dp->codesize;
+ u->read_block_size =
+ (u->read_link_mtu - sizeof(struct rtp_header) - sizeof(struct rtp_payload))
+ / a2dp->frame_length * a2dp->codesize;
+
+ u->write_block_size =
+ (u->write_link_mtu - sizeof(struct rtp_header) - sizeof(struct rtp_payload))
+ / a2dp->frame_length * a2dp->codesize;
- pa_sink_set_max_request_within_thread(u->sink, u->block_size);
+ pa_sink_set_max_request_within_thread(u->sink, u->write_block_size);
pa_sink_set_fixed_latency_within_thread(u->sink,
- FIXED_LATENCY_PLAYBACK_A2DP + pa_bytes_to_usec(u->block_size, &u->sample_spec));
+ FIXED_LATENCY_PLAYBACK_A2DP + pa_bytes_to_usec(u->write_block_size, &u->sample_spec));
}
/* from IO thread, except in SCO over PCM */
return 0;
}
-static int start_stream_fd(struct userdata *u) {
- union {
- bt_audio_msg_header_t rsp;
- struct bt_start_stream_req start_req;
- struct bt_start_stream_rsp start_rsp;
- struct bt_new_stream_ind streamfd_ind;
- bt_audio_error_t error;
- uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
- } msg;
-
- pa_assert(u);
- pa_assert(u->rtpoll);
- pa_assert(!u->rtpoll_item);
- pa_assert(u->stream_fd < 0);
-
- memset(msg.buf, 0, BT_SUGGESTED_BUFFER_SIZE);
- msg.start_req.h.type = BT_REQUEST;
- msg.start_req.h.name = BT_START_STREAM;
- msg.start_req.h.length = sizeof(msg.start_req);
-
- if (service_send(u, &msg.start_req.h) < 0)
- return -1;
-
- if (service_expect(u, &msg.rsp, sizeof(msg), BT_START_STREAM, sizeof(msg.start_rsp)) < 0)
- return -1;
-
- if (service_expect(u, &msg.rsp, sizeof(msg), BT_NEW_STREAM, sizeof(msg.streamfd_ind)) < 0)
- return -1;
-
- if ((u->stream_fd = bt_audio_service_get_data_fd(u->service_fd)) < 0) {
- pa_log("Failed to get stream fd from audio service.");
- return -1;
- }
-
- return setup_stream(u);
-}
-
-/* from IO thread */
-static int stop_stream_fd(struct userdata *u) {
- union {
- bt_audio_msg_header_t rsp;
- struct bt_stop_stream_req start_req;
- struct bt_stop_stream_rsp start_rsp;
- bt_audio_error_t error;
- uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
- } msg;
- int r = 0;
-
- pa_assert(u);
- pa_assert(u->rtpoll);
-
- if (u->rtpoll_item) {
- pa_rtpoll_item_free(u->rtpoll_item);
- u->rtpoll_item = NULL;
- }
-
- if (u->stream_fd >= 0) {
- memset(msg.buf, 0, BT_SUGGESTED_BUFFER_SIZE);
- msg.start_req.h.type = BT_REQUEST;
- msg.start_req.h.name = BT_STOP_STREAM;
- msg.start_req.h.length = sizeof(msg.start_req);
-
- if (service_send(u, &msg.start_req.h) < 0 ||
- service_expect(u, &msg.rsp, sizeof(msg), BT_STOP_STREAM, sizeof(msg.start_rsp)) < 0)
- r = -1;
-
- pa_close(u->stream_fd);
- u->stream_fd = -1;
- }
-
- if (u->read_smoother) {
- pa_smoother_free(u->read_smoother);
- u->read_smoother = NULL;
- }
-
- return r;
-}
-
static void bt_transport_release(struct userdata *u) {
const char *accesstype = "rw";
const pa_bluetooth_transport *t;
return -1;
}
- /* FIXME: Handle in/out MTU properly when unix socket is not longer supported */
- u->stream_fd = pa_bluetooth_transport_acquire(t, accesstype, NULL, &u->link_mtu);
+ u->stream_fd = pa_bluetooth_transport_acquire(t, accesstype, &u->read_link_mtu, &u->write_link_mtu);
if (u->stream_fd < 0)
return -1;
int r;
pa_assert(u->sink == PA_SINK(o));
+ pa_assert(u->transport);
switch (code) {
pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
/* Stop the device if the source is suspended as well */
- if (!u->source || u->source->state == PA_SOURCE_SUSPENDED) {
+ if (!u->source || u->source->state == PA_SOURCE_SUSPENDED)
/* We deliberately ignore whether stopping
* actually worked. Since the stream_fd is
* closed it doesn't really matter */
- if (u->transport)
- bt_transport_release(u);
- else
- stop_stream_fd(u);
- }
+ bt_transport_release(u);
break;
/* Resume the device if the source was suspended as well */
if (!u->source || u->source->state == PA_SOURCE_SUSPENDED) {
- if (u->transport) {
- if (bt_transport_acquire(u, TRUE) < 0)
- failed = TRUE;
- } else if (start_stream_fd(u) < 0)
+ if (bt_transport_acquire(u, TRUE) < 0)
failed = TRUE;
}
break;
pa_usec_t wi, ri;
ri = pa_smoother_get(u->read_smoother, pa_rtclock_now());
- wi = pa_bytes_to_usec(u->write_index + u->block_size, &u->sample_spec);
+ wi = pa_bytes_to_usec(u->write_index + u->write_block_size, &u->sample_spec);
*((pa_usec_t*) data) = wi > ri ? wi - ri : 0;
} else {
int r;
pa_assert(u->source == PA_SOURCE(o));
+ pa_assert(u->transport);
switch (code) {
pa_assert(PA_SOURCE_IS_OPENED(u->source->thread_info.state));
/* Stop the device if the sink is suspended as well */
- if (!u->sink || u->sink->state == PA_SINK_SUSPENDED) {
- if (u->transport)
- bt_transport_release(u);
- else
- stop_stream_fd(u);
- }
+ if (!u->sink || u->sink->state == PA_SINK_SUSPENDED)
+ bt_transport_release(u);
if (u->read_smoother)
pa_smoother_pause(u->read_smoother, pa_rtclock_now());
/* Resume the device if the sink was suspended as well */
if (!u->sink || u->sink->thread_info.state == PA_SINK_SUSPENDED) {
- if (u->transport) {
- if (bt_transport_acquire(u, TRUE) < 0)
- failed = TRUE;
- } else if (start_stream_fd(u) < 0)
+ if (bt_transport_acquire(u, TRUE) < 0)
failed = TRUE;
}
/* We don't resume the smoother here. Instead we
/* First, render some data */
if (!u->write_memchunk.memblock)
- pa_sink_render_full(u->sink, u->block_size, &u->write_memchunk);
+ pa_sink_render_full(u->sink, u->write_block_size, &u->write_memchunk);
- pa_assert(u->write_memchunk.length == u->block_size);
+ pa_assert(u->write_memchunk.length == u->write_block_size);
for (;;) {
ssize_t l;
* SEQPACKET, and we generated the data of the MTU size, so this
* should just work. */
- p = (const uint8_t*) pa_memblock_acquire(u->write_memchunk.memblock) + u->write_memchunk.index;
+ p = (const uint8_t *) pa_memblock_acquire_chunk(&u->write_memchunk);
l = pa_write(u->stream_fd, p, u->write_memchunk.length, &u->stream_write_type);
pa_memblock_release(u->write_memchunk.memblock);
pa_assert(u->source);
pa_assert(u->read_smoother);
- memchunk.memblock = pa_memblock_new(u->core->mempool, u->block_size);
+ memchunk.memblock = pa_memblock_new(u->core->mempool, u->read_block_size);
memchunk.index = memchunk.length = 0;
for (;;) {
pa_source_post(u->source, &memchunk);
- ret = 1;
+ ret = l;
break;
}
/* Run from IO thread */
static void a2dp_prepare_buffer(struct userdata *u) {
+ size_t min_buffer_size = PA_MAX(u->read_link_mtu, u->write_link_mtu);
+
pa_assert(u);
- if (u->a2dp.buffer_size >= u->link_mtu)
+ if (u->a2dp.buffer_size >= min_buffer_size)
return;
- u->a2dp.buffer_size = 2 * u->link_mtu;
+ u->a2dp.buffer_size = 2 * min_buffer_size;
pa_xfree(u->a2dp.buffer);
u->a2dp.buffer = pa_xmalloc(u->a2dp.buffer_size);
}
/* First, render some data */
if (!u->write_memchunk.memblock)
- pa_sink_render_full(u->sink, u->block_size, &u->write_memchunk);
+ pa_sink_render_full(u->sink, u->write_block_size, &u->write_memchunk);
- pa_assert(u->write_memchunk.length == u->block_size);
+ pa_assert(u->write_memchunk.length == u->write_block_size);
a2dp_prepare_buffer(u);
/* Try to create a packet of the full MTU */
- p = (const uint8_t*) pa_memblock_acquire(u->write_memchunk.memblock) + u->write_memchunk.index;
+ p = (const uint8_t *) pa_memblock_acquire_chunk(&u->write_memchunk);
to_encode = u->write_memchunk.length;
d = (uint8_t*) a2dp->buffer + sizeof(*header) + sizeof(*payload);
pa_assert(u->source);
pa_assert(u->read_smoother);
- memchunk.memblock = pa_memblock_new(u->core->mempool, u->block_size);
+ memchunk.memblock = pa_memblock_new(u->core->mempool, u->read_block_size);
memchunk.index = memchunk.length = 0;
for (;;) {
pa_source_post(u->source, &memchunk);
- ret = 1;
+ ret = l;
break;
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
unsigned do_write = 0;
+ unsigned pending_read_bytes = 0;
pa_bool_t writable = FALSE;
pa_assert(u);
+ pa_assert(u->transport);
pa_log_debug("IO Thread starting up");
pa_thread_mq_install(&u->thread_mq);
- if (u->transport) {
- if (bt_transport_acquire(u, TRUE) < 0)
- goto fail;
- } else if (start_stream_fd(u) < 0)
+ if (bt_transport_acquire(u, TRUE) < 0)
goto fail;
for (;;) {
goto fail;
/* We just read something, so we are supposed to write something, too */
- do_write += n_read;
+ pending_read_bytes += n_read;
+ do_write += pending_read_bytes / u->write_block_size;
+ pending_read_bytes = pending_read_bytes % u->write_block_size;
}
}
}
do_write = 1;
+ pending_read_bytes = 0;
}
}
}
if (ret == 0) {
pa_log_debug("IO thread shutdown requested, stopping cleanly");
- if (u->transport)
- bt_transport_release(u);
- else
- stop_stream_fd(u);
+ bt_transport_release(u);
goto finish;
}
if (PA_SINK_IS_OPENED(pa_sink_get_state(u->hsp.sco_sink)) ||
PA_SOURCE_IS_OPENED(pa_source_get_state(u->hsp.sco_source))) {
- if (u->service_fd >= 0 && u->stream_fd >= 0)
+ if (u->stream_fd >= 0)
return 0;
- init_bt(u);
-
pa_log_debug("Resuming SCO over PCM");
if (init_profile(u) < 0) {
pa_log("Can't resume SCO over PCM");
return -1;
}
- if (u->transport)
- return bt_transport_acquire(u, TRUE);
-
- return start_stream_fd(u);
+ return bt_transport_acquire(u, TRUE);
}
if (changed) {
- if (u->service_fd < 0 && u->stream_fd < 0)
+ if (u->stream_fd < 0)
return 0;
pa_log_debug("Closing SCO over PCM");
- if (u->transport)
- bt_transport_release(u);
- else if (u->stream_fd >= 0)
- stop_stream_fd(u);
-
- if (u->service_fd >= 0) {
- pa_close(u->service_fd);
- u->service_fd = -1;
- }
+ bt_transport_release(u);
}
return 0;
}
}
+static const char *profile_to_string(enum profile profile) {
+ switch(profile) {
+ case PROFILE_A2DP:
+ return "a2dp";
+ case PROFILE_A2DP_SOURCE:
+ return "a2dp_source";
+ case PROFILE_HSP:
+ return "hsp";
+ case PROFILE_HFGW:
+ return "hfgw";
+ default:
+ pa_assert_not_reached();
+ }
+}
+
/* Run from main thread */
static int add_sink(struct userdata *u) {
char *k;
u->sink = u->hsp.sco_sink;
p = pa_proplist_new();
- pa_proplist_sets(p, "bluetooth.protocol", "sco");
+ pa_proplist_sets(p, "bluetooth.protocol", profile_to_string(u->profile));
pa_proplist_update(u->sink->proplist, PA_UPDATE_MERGE, p);
pa_proplist_free(p);
data.driver = __FILE__;
data.module = u->module;
pa_sink_new_data_set_sample_spec(&data, &u->sample_spec);
- pa_proplist_sets(data.proplist, "bluetooth.protocol", u->profile == PROFILE_A2DP ? "a2dp" : "sco");
+ pa_proplist_sets(data.proplist, "bluetooth.protocol", profile_to_string(u->profile));
if (u->profile == PROFILE_HSP)
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
data.card = u->card;
u->sink->userdata = u;
u->sink->parent.process_msg = sink_process_msg;
- pa_sink_set_max_request(u->sink, u->block_size);
+ pa_sink_set_max_request(u->sink, u->write_block_size);
pa_sink_set_fixed_latency(u->sink,
(u->profile == PROFILE_A2DP ? FIXED_LATENCY_PLAYBACK_A2DP : FIXED_LATENCY_PLAYBACK_HSP) +
- pa_bytes_to_usec(u->block_size, &u->sample_spec));
+ pa_bytes_to_usec(u->write_block_size, &u->sample_spec));
}
if (u->profile == PROFILE_HSP) {
if (USE_SCO_OVER_PCM(u)) {
u->source = u->hsp.sco_source;
- pa_proplist_sets(u->source->proplist, "bluetooth.protocol", "hsp");
+ pa_proplist_sets(u->source->proplist, "bluetooth.protocol", profile_to_string(u->profile));
if (!u->hsp.source_state_changed_slot)
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);
data.driver = __FILE__;
data.module = u->module;
pa_source_new_data_set_sample_spec(&data, &u->sample_spec);
- pa_proplist_sets(data.proplist, "bluetooth.protocol", u->profile == PROFILE_A2DP_SOURCE ? "a2dp_source" : "hsp");
+ pa_proplist_sets(data.proplist, "bluetooth.protocol", profile_to_string(u->profile));
if ((u->profile == PROFILE_HSP) || (u->profile == PROFILE_HFGW))
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
pa_source_set_fixed_latency(u->source,
(u->profile == PROFILE_A2DP_SOURCE ? FIXED_LATENCY_RECORD_A2DP : FIXED_LATENCY_RECORD_HSP) +
- pa_bytes_to_usec(u->block_size, &u->sample_spec));
+ pa_bytes_to_usec(u->read_block_size, &u->sample_spec));
}
if ((u->profile == PROFILE_HSP) || (u->profile == PROFILE_HFGW)) {
- if (u->transport) {
- pa_bluetooth_transport *t;
- t = pa_bluetooth_discovery_get_transport(u->discovery, u->transport);
- pa_assert(t);
- pa_proplist_sets(u->source->proplist, "bluetooth.nrec", t->nrec ? "1" : "0");
+ pa_bluetooth_transport *t;
+ t = pa_bluetooth_discovery_get_transport(u->discovery, u->transport);
+ pa_assert(t);
+ pa_proplist_sets(u->source->proplist, "bluetooth.nrec", t->nrec ? "1" : "0");
- if (!u->hsp.nrec_changed_slot)
- u->hsp.nrec_changed_slot = pa_hook_connect(&t->hooks[PA_BLUETOOTH_TRANSPORT_HOOK_NREC_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) nrec_changed_cb, u);
- } else
- pa_proplist_sets(u->source->proplist, "bluetooth.nrec", (u->hsp.pcm_capabilities.flags & BT_PCM_FLAG_NREC) ? "1" : "0");
+ if (!u->hsp.nrec_changed_slot)
+ u->hsp.nrec_changed_slot = pa_hook_connect(&t->hooks[PA_BLUETOOTH_TRANSPORT_HOOK_NREC_CHANGED], PA_HOOK_NORMAL, (pa_hook_cb_t) nrec_changed_cb, u);
}
if (u->profile == PROFILE_HSP) {
return 0;
}
-/* Run from main thread */
-static void shutdown_bt(struct userdata *u) {
- pa_assert(u);
-
- if (u->stream_fd >= 0) {
- pa_close(u->stream_fd);
- u->stream_fd = -1;
-
- u->stream_write_type = 0;
- }
-
- if (u->service_fd >= 0) {
- pa_close(u->service_fd);
- u->service_fd = -1;
- u->service_write_type = 0;
- u->service_read_type = 0;
- }
-
- if (u->write_memchunk.memblock) {
- pa_memblock_unref(u->write_memchunk.memblock);
- pa_memchunk_reset(&u->write_memchunk);
- }
-}
-
static int bt_transport_config_a2dp(struct userdata *u) {
const pa_bluetooth_transport *t;
struct a2dp_info *a2dp = &u->a2dp;
a2dp->codesize = sbc_get_codesize(&a2dp->sbc);
a2dp->frame_length = sbc_get_frame_length(&a2dp->sbc);
- u->block_size =
- ((u->link_mtu - sizeof(struct rtp_header) - sizeof(struct rtp_payload))
- / a2dp->frame_length
- * a2dp->codesize);
+ u->read_block_size =
+ (u->read_link_mtu - sizeof(struct rtp_header) - sizeof(struct rtp_payload))
+ / a2dp->frame_length * a2dp->codesize;
+
+ u->write_block_size =
+ (u->write_link_mtu - sizeof(struct rtp_header) - sizeof(struct rtp_payload))
+ / a2dp->frame_length * a2dp->codesize;
pa_log_info("SBC parameters:\n\tallocation=%u\n\tsubbands=%u\n\tblocks=%u\n\tbitpool=%u\n",
a2dp->sbc.allocation, a2dp->sbc.subbands, a2dp->sbc.blocks, a2dp->sbc.bitpool);
static int bt_transport_config(struct userdata *u) {
if (u->profile == PROFILE_HSP || u->profile == PROFILE_HFGW) {
- u->block_size = u->link_mtu;
+ u->read_block_size = u->read_link_mtu;
+ u->write_block_size = u->write_link_mtu;
u->sample_spec.format = PA_SAMPLE_S16LE;
u->sample_spec.channels = 1;
u->sample_spec.rate = 8000;
return bt_transport_config_a2dp(u);
}
-/* Run from main thread */
-static int bt_transport_open(struct userdata *u) {
- if (bt_transport_acquire(u, FALSE) < 0)
- return -1;
-
- return bt_transport_config(u);
-}
-
-/* Run from main thread */
-static int init_bt(struct userdata *u) {
- pa_assert(u);
-
- shutdown_bt(u);
-
- u->stream_write_type = 0;
- u->service_write_type = 0;
- u->service_read_type = 0;
-
- if ((u->service_fd = bt_audio_service_open()) < 0) {
- pa_log_warn("Bluetooth audio service not available");
- return -1;
- }
-
- pa_log_debug("Connected to the bluetooth audio service");
-
- return 0;
-}
-
/* Run from main thread */
static int setup_bt(struct userdata *u) {
const pa_bluetooth_device *d;
/* check if profile has a transport */
t = pa_bluetooth_device_get_transport(d, u->profile);
- if (t) {
- u->transport = pa_xstrdup(t->path);
- return bt_transport_open(u);
- }
-
- if (get_caps(u, 0) < 0)
+ if (t == NULL) {
+ pa_log_warn("Profile has no transport");
return -1;
+ }
- pa_log_debug("Got device capabilities");
+ u->transport = pa_xstrdup(t->path);
- if (set_conf(u) < 0)
+ if (bt_transport_acquire(u, FALSE) < 0)
return -1;
- pa_log_debug("Connection to the device configured");
-
- if (USE_SCO_OVER_PCM(u)) {
- pa_log_debug("Configured to use SCO over PCM");
- return 0;
- }
-
- pa_log_debug("Got the stream socket");
-
- return 0;
+ return bt_transport_config(u);
}
/* Run from main thread */
if (device->headset_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_HSP) {
pa_log_warn("HSP is not connected, refused to switch profile");
return -PA_ERR_IO;
- }
- else if (device->audio_sink_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_A2DP) {
- pa_log_warn("A2DP is not connected, refused to switch profile");
+ } else if (device->audio_sink_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_A2DP) {
+ pa_log_warn("A2DP Sink is not connected, refused to switch profile");
return -PA_ERR_IO;
- }
- else if (device->hfgw_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_HFGW) {
+ } else if (device->audio_source_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_A2DP_SOURCE) {
+ pa_log_warn("A2DP Source is not connected, refused to switch profile");
+ return -PA_ERR_IO;
+ } else if (device->hfgw_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_HFGW) {
pa_log_warn("HandsfreeGateway is not connected, refused to switch profile");
return -PA_ERR_IO;
}
u->transport = NULL;
}
- shutdown_bt(u);
-
if (USE_SCO_OVER_PCM(u))
restore_sco_volume_callbacks(u);
if (USE_SCO_OVER_PCM(u))
save_sco_volume_callbacks(u);
- init_bt(u);
-
if (u->profile != PROFILE_OFF)
init_profile(u);
return -1;
}
- data.profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
-
/* we base hsp/a2dp availability on UUIDs.
Ideally, it would be based on "Connected" state, but
we can't afford to wait for this information when
if ((device->headset_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_HSP) ||
(device->audio_sink_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_A2DP) ||
+ (device->audio_source_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_A2DP_SOURCE) ||
(device->hfgw_state < PA_BT_AUDIO_STATE_CONNECTED && *d == PROFILE_HFGW)) {
pa_log_warn("Default profile not connected, selecting off profile");
u->card->active_profile = pa_hashmap_get(u->card->profiles, "off");
m->userdata = u = pa_xnew0(struct userdata, 1);
u->module = m;
u->core = m->core;
- u->service_fd = -1;
u->stream_fd = -1;
u->sample_spec = m->core->default_sample_spec;
u->modargs = ma;
pa_xfree(speaker);
pa_xfree(mike);
- /* Connect to the BT service */
- init_bt(u);
-
if (u->profile != PROFILE_OFF)
if (init_profile(u) < 0)
goto fail;
if (u->read_smoother)
pa_smoother_free(u->read_smoother);
- shutdown_bt(u);
-
if (u->a2dp.buffer)
pa_xfree(u->a2dp.buffer);