bluetooth: Release transport when not available
[profile/ivi/pulseaudio-panda.git] / src / modules / bluetooth / module-bluetooth-device.c
index 9f81336..ad68cfa 100644 (file)
@@ -2,6 +2,7 @@
   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 <linux/sockios.h>
 #include <arpa/inet.h>
 
-#include <pulse/i18n.h>
 #include <pulse/rtclock.h>
 #include <pulse/sample.h>
 #include <pulse/timeval.h>
 #include <pulse/xmalloc.h>
 
+#include <pulsecore/i18n.h>
 #include <pulsecore/module.h>
 #include <pulsecore/modargs.h>
 #include <pulsecore/core-rtclock.h>
@@ -124,8 +125,18 @@ struct hsp_info {
     void (*sco_source_set_volume)(pa_source *s);
     pa_hook_slot *sink_state_changed_slot;
     pa_hook_slot *source_state_changed_slot;
+    pa_hook_slot *nrec_changed_slot;
 };
 
+struct bluetooth_msg {
+    pa_msgobject parent;
+    pa_card *card;
+};
+
+typedef struct bluetooth_msg bluetooth_msg;
+PA_DEFINE_PRIVATE_CLASS(bluetooth_msg, pa_msgobject);
+#define BLUETOOTH_MSG(o) (bluetooth_msg_cast(o))
+
 struct userdata {
     pa_core *core;
     pa_module *module;
@@ -148,6 +159,7 @@ struct userdata {
     pa_rtpoll *rtpoll;
     pa_rtpoll_item *rtpoll_item;
     pa_thread *thread;
+    bluetooth_msg *msg;
 
     uint64_t read_index, write_index;
     pa_usec_t started_at;
@@ -157,11 +169,13 @@ struct userdata {
 
     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;
@@ -171,11 +185,15 @@ struct userdata {
     pa_modargs *modargs;
 
     int stream_write_type;
-    int service_write_type, service_read_type;
 
     pa_bool_t filter_added;
 };
 
+enum {
+    BLUETOOTH_MESSAGE_IO_THREAD_FAILED,
+    BLUETOOTH_MESSAGE_MAX
+};
+
 #define FIXED_LATENCY_PLAYBACK_A2DP (25*PA_USEC_PER_MSEC)
 #define FIXED_LATENCY_RECORD_A2DP (25*PA_USEC_PER_MSEC)
 #define FIXED_LATENCY_PLAYBACK_HSP (125*PA_USEC_PER_MSEC)
@@ -185,563 +203,8 @@ struct userdata {
 
 #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)
 {
@@ -766,130 +229,100 @@ 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 */
+static void bt_transport_config_mtu(struct userdata *u) {
+    /* Calculate block sizes */
+    if (u->profile == PROFILE_HSP || u->profile == PROFILE_HFGW) {
+        u->read_block_size = u->read_link_mtu;
+        u->write_block_size = u->write_link_mtu;
+    } else {
+        u->read_block_size =
+            (u->read_link_mtu - sizeof(struct rtp_header) - sizeof(struct rtp_payload))
+            / u->a2dp.frame_length * u->a2dp.codesize;
 
-static int setup_stream(struct userdata *u) {
-    struct pollfd *pollfd;
-    int one;
-
-    pa_make_fd_nonblock(u->stream_fd);
-    pa_make_socket_low_delay(u->stream_fd);
-
-    one = 1;
-    if (setsockopt(u->stream_fd, SOL_SOCKET, SO_TIMESTAMP, &one, sizeof(one)) < 0)
-        pa_log_warn("Failed to enable SO_TIMESTAMP: %s", pa_cstrerror(errno));
-
-    pa_log_debug("Stream properly set up, we're ready to roll!");
-
-    if (u->profile == PROFILE_A2DP)
-        a2dp_set_bitpool(u, u->a2dp.max_bitpool);
+        u->write_block_size =
+            (u->write_link_mtu - sizeof(struct rtp_header) - sizeof(struct rtp_payload))
+            / u->a2dp.frame_length * u->a2dp.codesize;
+    }
 
-    u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
-    pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
-    pollfd->fd = u->stream_fd;
-    pollfd->events = pollfd->revents = 0;
+    if (USE_SCO_OVER_PCM(u))
+        return;
 
-    u->read_index = u->write_index = 0;
-    u->started_at = 0;
+    if (u->sink) {
+        pa_sink_set_max_request_within_thread(u->sink, u->write_block_size);
+        pa_sink_set_fixed_latency_within_thread(u->sink,
+                                                (u->profile == PROFILE_A2DP ?
+                                                 FIXED_LATENCY_PLAYBACK_A2DP : FIXED_LATENCY_PLAYBACK_HSP) +
+                                                pa_bytes_to_usec(u->write_block_size, &u->sample_spec));
+    }
 
     if (u->source)
-        u->read_smoother = pa_smoother_new(
-                PA_USEC_PER_SEC,
-                PA_USEC_PER_SEC*2,
-                TRUE,
-                TRUE,
-                10,
-                pa_rtclock_now(),
-                TRUE);
-
-    return 0;
+        pa_source_set_fixed_latency_within_thread(u->source,
+                                                  (u->profile == PROFILE_A2DP_SOURCE ?
+                                                   FIXED_LATENCY_RECORD_A2DP : FIXED_LATENCY_RECORD_HSP) +
+                                                  pa_bytes_to_usec(u->read_block_size, &u->sample_spec));
 }
 
-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;
+/* from IO thread, except in SCO over PCM */
 
-    if (service_expect(u, &msg.rsp, sizeof(msg), BT_NEW_STREAM, sizeof(msg.streamfd_ind)) < 0)
-        return -1;
+static void setup_stream(struct userdata *u) {
+    struct pollfd *pollfd;
+    int one;
 
-    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;
-    }
+    bt_transport_config_mtu(u);
 
-    return setup_stream(u);
-}
+    pa_make_fd_nonblock(u->stream_fd);
+    pa_make_socket_low_delay(u->stream_fd);
 
-/* 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;
+    one = 1;
+    if (setsockopt(u->stream_fd, SOL_SOCKET, SO_TIMESTAMP, &one, sizeof(one)) < 0)
+        pa_log_warn("Failed to enable SO_TIMESTAMP: %s", pa_cstrerror(errno));
 
-    pa_assert(u);
-    pa_assert(u->rtpoll);
+    pa_log_debug("Stream properly set up, we're ready to roll!");
 
-    if (u->rtpoll_item) {
-        pa_rtpoll_item_free(u->rtpoll_item);
-        u->rtpoll_item = NULL;
-    }
+    if (u->profile == PROFILE_A2DP)
+        a2dp_set_bitpool(u, u->a2dp.max_bitpool);
 
-    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);
+    u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
+    pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
+    pollfd->fd = u->stream_fd;
+    pollfd->events = pollfd->revents = 0;
 
-        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;
+    u->read_index = u->write_index = 0;
+    u->started_at = 0;
 
-        pa_close(u->stream_fd);
-        u->stream_fd = -1;
-    }
+    if (u->source)
+        u->read_smoother = pa_smoother_new(
+                PA_USEC_PER_SEC,
+                PA_USEC_PER_SEC*2,
+                TRUE,
+                TRUE,
+                10,
+                pa_rtclock_now(),
+                TRUE);
+}
 
-    if (u->read_smoother) {
-        pa_smoother_free(u->read_smoother);
-        u->read_smoother = NULL;
+static bool bt_transport_is_acquired(struct userdata *u) {
+    if (u->accesstype == NULL) {
+        pa_assert(u->stream_fd < 0);
+        return FALSE;
+    } else {
+        pa_assert(u->stream_fd >= 0);
+        return TRUE;
     }
-
-    return r;
 }
 
 static void bt_transport_release(struct userdata *u) {
@@ -897,7 +330,7 @@ static void bt_transport_release(struct userdata *u) {
     const pa_bluetooth_transport *t;
 
     /* Ignore if already released */
-    if (!u->accesstype)
+    if (!bt_transport_is_acquired(u))
         return;
 
     pa_log_debug("Releasing transport %s", u->transport);
@@ -929,7 +362,12 @@ static int bt_transport_acquire(struct userdata *u, pa_bool_t start) {
     const char *accesstype = "rw";
     const pa_bluetooth_transport *t;
 
-    if (u->accesstype) {
+    if (u->transport == NULL) {
+        pa_log("Transport no longer available.");
+        return -1;
+    }
+
+    if (bt_transport_is_acquired(u)) {
         if (start)
             goto done;
         return 0;
@@ -945,8 +383,7 @@ static int bt_transport_acquire(struct userdata *u, pa_bool_t start) {
         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;
 
@@ -958,7 +395,9 @@ static int bt_transport_acquire(struct userdata *u, pa_bool_t start) {
 
 done:
     pa_log_info("Transport %s resuming", u->transport);
-    return setup_stream(u);
+    setup_stream(u);
+
+    return 0;
 }
 
 /* Run from IO thread */
@@ -968,6 +407,7 @@ static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offse
     int r;
 
     pa_assert(u->sink == PA_SINK(o));
+    pa_assert(u->transport);
 
     switch (code) {
 
@@ -976,18 +416,16 @@ static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offse
             switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
 
                 case PA_SINK_SUSPENDED:
-                    pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
+                    /* Ignore if transition is PA_SINK_INIT->PA_SINK_SUSPENDED */
+                    if (!PA_SINK_IS_OPENED(u->sink->thread_info.state))
+                        break;
 
                     /* 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;
 
@@ -998,10 +436,7 @@ static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offse
 
                     /* 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;
@@ -1019,7 +454,7 @@ static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offse
                 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 {
@@ -1048,6 +483,7 @@ static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t off
     int r;
 
     pa_assert(u->source == PA_SOURCE(o));
+    pa_assert(u->transport);
 
     switch (code) {
 
@@ -1056,15 +492,13 @@ static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t off
             switch ((pa_source_state_t) PA_PTR_TO_UINT(data)) {
 
                 case PA_SOURCE_SUSPENDED:
-                    pa_assert(PA_SOURCE_IS_OPENED(u->source->thread_info.state));
+                    /* Ignore if transition is PA_SOURCE_INIT->PA_SOURCE_SUSPENDED */
+                    if (!PA_SOURCE_IS_OPENED(u->source->thread_info.state))
+                        break;
 
                     /* 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());
@@ -1077,10 +511,7 @@ static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t off
 
                     /* 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
@@ -1115,6 +546,25 @@ static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t off
     return (r < 0 || !failed) ? r : -1;
 }
 
+/* Called from main thread context */
+static int device_process_msg(pa_msgobject *obj, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+    struct bluetooth_msg *u = BLUETOOTH_MSG(obj);
+
+    switch (code) {
+        case BLUETOOTH_MESSAGE_IO_THREAD_FAILED: {
+            if (u->card->module->unload_requested)
+                break;
+
+            pa_log_debug("Switching the profile to off due to IO thread failure.");
+
+            if (pa_card_set_profile(u->card, "off", FALSE) < 0)
+                pa_log_debug("Failed to switch profile to off");
+            break;
+        }
+    }
+    return 0;
+}
+
 /* Run from IO thread */
 static int hsp_process_render(struct userdata *u) {
     int ret = 0;
@@ -1125,9 +575,9 @@ static int hsp_process_render(struct userdata *u) {
 
     /* 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;
@@ -1189,7 +639,7 @@ static int hsp_process_push(struct userdata *u) {
     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 (;;) {
@@ -1256,7 +706,7 @@ static int hsp_process_push(struct userdata *u) {
 
         pa_source_post(u->source, &memchunk);
 
-        ret = 1;
+        ret = l;
         break;
     }
 
@@ -1267,12 +717,14 @@ static int hsp_process_push(struct userdata *u) {
 
 /* 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);
 }
@@ -1295,9 +747,9 @@ static int a2dp_process_render(struct userdata *u) {
 
     /* 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);
 
@@ -1420,7 +872,7 @@ static int a2dp_process_push(struct userdata *u) {
     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 (;;) {
@@ -1433,7 +885,6 @@ static int a2dp_process_push(struct userdata *u) {
         void *d;
         ssize_t l;
         size_t to_write, to_decode;
-        unsigned frame_count;
 
         a2dp_prepare_buffer(u);
 
@@ -1509,8 +960,6 @@ static int a2dp_process_push(struct userdata *u) {
 
             d = (uint8_t*) d + written;
             to_write -= written;
-
-            frame_count++;
         }
 
         memchunk.length -= to_write;
@@ -1519,7 +968,7 @@ static int a2dp_process_push(struct userdata *u) {
 
         pa_source_post(u->source, &memchunk);
 
-        ret = 1;
+        ret = l;
         break;
     }
 
@@ -1552,9 +1001,11 @@ static void a2dp_reduce_bitpool(struct userdata *u)
 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");
 
@@ -1563,10 +1014,7 @@ static void thread_func(void *userdata) {
 
     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 (;;) {
@@ -1596,7 +1044,9 @@ static void thread_func(void *userdata) {
                     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;
             }
         }
 
@@ -1647,6 +1097,7 @@ static void thread_func(void *userdata) {
                         }
 
                         do_write = 1;
+                        pending_read_bytes = 0;
                     }
                 }
 
@@ -1700,11 +1151,15 @@ static void thread_func(void *userdata) {
             pollfd->events = (short) (((u->sink && PA_SINK_IS_LINKED(u->sink->thread_info.state) && !writable) ? POLLOUT : 0) |
                                       (u->source && PA_SOURCE_IS_LINKED(u->source->thread_info.state) ? POLLIN : 0));
 
-        if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
+        if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0) {
+            pa_log_debug("pa_rtpoll_run failed with: %d", ret);
             goto fail;
-
-        if (ret == 0)
+        }
+        if (ret == 0) {
+            pa_log_debug("IO thread shutdown requested, stopping cleanly");
+            bt_transport_release(u);
             goto finish;
+        }
 
         pollfd = u->rtpoll_item ? pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL) : NULL;
 
@@ -1721,17 +1176,74 @@ static void thread_func(void *userdata) {
 fail:
     /* If this was no regular exit from the loop we have to continue processing messages until we receive PA_MESSAGE_SHUTDOWN */
     pa_log_debug("IO thread failed");
-    pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
+    pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(u->msg), BLUETOOTH_MESSAGE_IO_THREAD_FAILED, NULL, 0, NULL, NULL);
     pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
 
 finish:
     pa_log_debug("IO thread shutting down");
 }
 
+static pa_bt_audio_state_t parse_state_property_change(DBusMessage *m) {
+    DBusMessageIter iter;
+    DBusMessageIter variant;
+    const char *key;
+    const char *value;
+    pa_bt_audio_state_t state;
+
+    if (!dbus_message_iter_init(m, &iter)) {
+        pa_log("Failed to parse PropertyChanged");
+        return PA_BT_AUDIO_STATE_INVALID;
+    }
+
+    if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING) {
+        pa_log("Property name not a string");
+        return PA_BT_AUDIO_STATE_INVALID;
+    }
+
+    dbus_message_iter_get_basic(&iter, &key);
+
+    if (!pa_streq(key, "State"))
+        return PA_BT_AUDIO_STATE_INVALID;
+
+    if (!dbus_message_iter_next(&iter)) {
+        pa_log("Property value missing");
+        return PA_BT_AUDIO_STATE_INVALID;
+    }
+
+    dbus_message_iter_recurse(&iter, &variant);
+
+    if (dbus_message_iter_get_arg_type(&variant) != DBUS_TYPE_STRING) {
+        pa_log("Property value not a string");
+        return PA_BT_AUDIO_STATE_INVALID;
+    }
+
+    dbus_message_iter_get_basic(&variant, &value);
+
+    pa_log_debug("dbus: %s property 'State' changed to value '%s'", dbus_message_get_interface(m), value);
+
+    state = pa_bt_audio_state_from_string(value);
+
+    if (state == PA_BT_AUDIO_STATE_INVALID)
+        pa_log("Unexpected value for property 'State': '%s'", value);
+
+    return state;
+}
+
+static pa_port_available_t audio_state_to_availability(pa_bt_audio_state_t state) {
+    if (state < PA_BT_AUDIO_STATE_CONNECTED)
+        return PA_PORT_AVAILABLE_NO;
+    else if (state >= PA_BT_AUDIO_STATE_PLAYING)
+        return PA_PORT_AVAILABLE_YES;
+    else
+        return PA_PORT_AVAILABLE_UNKNOWN;
+}
+
 /* Run from main thread */
 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
     DBusError err;
     struct userdata *u;
+    bool acquire = FALSE;
+    bool release = FALSE;
 
     pa_assert(bus);
     pa_assert(m);
@@ -1780,30 +1292,105 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *us
                 pa_source_volume_changed(u->source, &v);
             }
         }
-    } else if (dbus_message_is_signal(m, "org.bluez.MediaTransport", "PropertyChanged")) {
-        DBusMessageIter arg_i;
-        pa_bluetooth_transport *t;
-        pa_bool_t nrec;
+    } else if (dbus_message_is_signal(m, "org.bluez.HandsfreeGateway", "PropertyChanged")) {
+        pa_bt_audio_state_t state = parse_state_property_change(m);
+
+        switch(state) {
+            case PA_BT_AUDIO_STATE_INVALID:
+            case PA_BT_AUDIO_STATE_DISCONNECTED:
+            case PA_BT_AUDIO_STATE_CONNECTED:
+            case PA_BT_AUDIO_STATE_CONNECTING:
+                goto fail;
+
+            case PA_BT_AUDIO_STATE_PLAYING:
+                if (u->card) {
+                    pa_log_debug("Changing profile to hfgw");
+                    if (pa_card_set_profile(u->card, "hfgw", FALSE) < 0)
+                        pa_log("Failed to change profile to hfgw");
+                }
+                break;
+        }
 
-        t = (pa_bluetooth_transport *) pa_bluetooth_discovery_get_transport(u->discovery, u->transport);
-        pa_assert(t);
+        if (state != PA_BT_AUDIO_STATE_INVALID) {
+            pa_device_port *port;
+            pa_port_available_t available = audio_state_to_availability(state);
 
-        if (!dbus_message_iter_init(m, &arg_i)) {
-            pa_log("Failed to parse PropertyChanged: %s", err.message);
-            goto fail;
+            pa_assert_se(port = pa_hashmap_get(u->card->ports, "hfgw-output"));
+            pa_device_port_set_available(port, available);
+
+            pa_assert_se(port = pa_hashmap_get(u->card->ports, "hfgw-input"));
+            pa_device_port_set_available(port, available);
+
+            acquire = (available == PA_PORT_AVAILABLE_YES && u->profile == PROFILE_HFGW);
+            release = (available != PA_PORT_AVAILABLE_YES && u->profile == PROFILE_HFGW);
         }
+    } else if (dbus_message_is_signal(m, "org.bluez.Headset", "PropertyChanged")) {
+        pa_bt_audio_state_t state = parse_state_property_change(m);
 
-        nrec = t->nrec;
+        if (state != PA_BT_AUDIO_STATE_INVALID) {
+            pa_device_port *port;
+            pa_port_available_t available = audio_state_to_availability(state);
 
-        if (pa_bluetooth_transport_parse_property(t, &arg_i) < 0)
-            goto fail;
+            pa_assert_se(port = pa_hashmap_get(u->card->ports, "hsp-output"));
+            pa_device_port_set_available(port, available);
+
+            pa_assert_se(port = pa_hashmap_get(u->card->ports, "hsp-input"));
+            pa_device_port_set_available(port, available);
+
+            acquire = (available == PA_PORT_AVAILABLE_YES && u->profile == PROFILE_HSP);
+            release = (available != PA_PORT_AVAILABLE_YES && u->profile == PROFILE_HSP);
+        }
+    } else if (dbus_message_is_signal(m, "org.bluez.AudioSource", "PropertyChanged")) {
+        pa_bt_audio_state_t state = parse_state_property_change(m);
+
+        if (state != PA_BT_AUDIO_STATE_INVALID) {
+            pa_device_port *port;
+            pa_port_available_t available = audio_state_to_availability(state);
+
+            pa_assert_se(port = pa_hashmap_get(u->card->ports, "a2dp-input"));
+            pa_device_port_set_available(port, available);
+
+            acquire = (available == PA_PORT_AVAILABLE_YES && u->profile == PROFILE_A2DP_SOURCE);
+            release = (available != PA_PORT_AVAILABLE_YES && u->profile == PROFILE_A2DP_SOURCE);
+        }
+    } else if (dbus_message_is_signal(m, "org.bluez.AudioSink", "PropertyChanged")) {
+        pa_bt_audio_state_t state = parse_state_property_change(m);
+
+        if (state != PA_BT_AUDIO_STATE_INVALID) {
+            pa_device_port *port;
+            pa_port_available_t available = audio_state_to_availability(state);
+
+            pa_assert_se(port = pa_hashmap_get(u->card->ports, "a2dp-output"));
+            pa_device_port_set_available(port, available);
 
-        if (nrec != t->nrec) {
-            pa_log_debug("dbus: property 'NREC' changed to value '%s'", t->nrec ? "True" : "False");
-            pa_proplist_sets(u->source->proplist, "bluetooth.nrec", t->nrec ? "1" : "0");
+            acquire = (available == PA_PORT_AVAILABLE_YES && u->profile == PROFILE_A2DP);
+            release = (available != PA_PORT_AVAILABLE_YES && u->profile == PROFILE_A2DP);
         }
     }
 
+    if (acquire)
+        if (bt_transport_acquire(u, FALSE) >= 0) {
+            if (u->source)
+                pa_source_suspend(u->source, FALSE, PA_SUSPEND_IDLE|PA_SUSPEND_USER);
+
+            if (u->sink)
+                pa_sink_suspend(u->sink, FALSE, PA_SUSPEND_IDLE|PA_SUSPEND_USER);
+        }
+
+    if (release && bt_transport_is_acquired(u)) {
+        /* FIXME: this release is racy, since the audio stream might have
+           been set up again in the meantime (but not processed yet by PA).
+           BlueZ should probably release the transport automatically, and
+           in that case we would just mark the transport as released */
+
+        /* Remote side closed the stream so we consider it PA_SUSPEND_USER */
+        if (u->source)
+            pa_source_suspend(u->source, TRUE, PA_SUSPEND_USER);
+
+        if (u->sink)
+            pa_sink_suspend(u->sink, TRUE, PA_SUSPEND_USER);
+    }
+
 fail:
     dbus_error_free(&err);
 
@@ -1922,38 +1509,25 @@ static int sco_over_pcm_state_update(struct userdata *u, pa_bool_t changed) {
     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;
@@ -1985,6 +1559,98 @@ static pa_hook_result_t source_state_changed_cb(pa_core *c, pa_source *s, struct
     return PA_HOOK_OK;
 }
 
+static pa_hook_result_t nrec_changed_cb(pa_bluetooth_transport *t, void *call_data, struct userdata *u) {
+    pa_proplist *p;
+
+    pa_assert(t);
+    pa_assert(u);
+
+    p = pa_proplist_new();
+    pa_proplist_sets(p, "bluetooth.nrec", t->nrec ? "1" : "0");
+    pa_source_update_proplist(u->source, PA_UPDATE_REPLACE, p);
+    pa_proplist_free(p);
+
+    return PA_HOOK_OK;
+}
+
+static void connect_ports(struct userdata *u, void *sink_or_source_new_data, pa_direction_t direction) {
+    union {
+        pa_sink_new_data *sink_new_data;
+        pa_source_new_data *source_new_data;
+    } data;
+    pa_device_port *port;
+
+    if (direction == PA_DIRECTION_OUTPUT) {
+        data.sink_new_data = sink_or_source_new_data;
+        data.sink_new_data->ports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
+    } else {
+        data.source_new_data = sink_or_source_new_data;
+        data.source_new_data->ports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
+    }
+
+    switch (u->profile) {
+        case PROFILE_A2DP:
+            pa_assert_se(port = pa_hashmap_get(u->card->ports, "a2dp-output"));
+            pa_assert_se(pa_hashmap_put(data.sink_new_data->ports, port->name, port) >= 0);
+            pa_device_port_ref(port);
+            break;
+
+        case PROFILE_A2DP_SOURCE:
+            pa_assert_se(port = pa_hashmap_get(u->card->ports, "a2dp-input"));
+            pa_assert_se(pa_hashmap_put(data.source_new_data->ports, port->name, port) >= 0);
+            pa_device_port_ref(port);
+            break;
+
+        case PROFILE_HSP:
+            if (direction == PA_DIRECTION_OUTPUT) {
+                pa_assert_se(port = pa_hashmap_get(u->card->ports, "hsp-output"));
+                pa_assert_se(pa_hashmap_put(data.sink_new_data->ports, port->name, port) >= 0);
+            } else {
+                pa_assert_se(port = pa_hashmap_get(u->card->ports, "hsp-input"));
+                pa_assert_se(pa_hashmap_put(data.source_new_data->ports, port->name, port) >= 0);
+            }
+            pa_device_port_ref(port);
+            break;
+
+        case PROFILE_HFGW:
+            if (direction == PA_DIRECTION_OUTPUT) {
+                pa_assert_se(port = pa_hashmap_get(u->card->ports, "hfgw-output"));
+                pa_assert_se(pa_hashmap_put(data.sink_new_data->ports, port->name, port) >= 0);
+            } else {
+                pa_assert_se(port = pa_hashmap_get(u->card->ports, "hfgw-input"));
+                pa_assert_se(pa_hashmap_put(data.source_new_data->ports, port->name, port) >= 0);
+            }
+            pa_device_port_ref(port);
+            break;
+
+        default:
+            pa_assert_not_reached();
+        }
+}
+
+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();
+    }
+}
+
+static int sink_set_port_cb(pa_sink *s, pa_device_port *p) {
+    return 0;
+}
+
+static int source_set_port_cb(pa_source *s, pa_device_port *p) {
+    return 0;
+}
+
 /* Run from main thread */
 static int add_sink(struct userdata *u) {
     char *k;
@@ -1994,7 +1660,7 @@ static int add_sink(struct userdata *u) {
 
         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);
 
@@ -2009,7 +1675,7 @@ static int add_sink(struct userdata *u) {
         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;
@@ -2021,6 +1687,7 @@ static int add_sink(struct userdata *u) {
             pa_sink_new_data_done(&data);
             return -1;
         }
+        connect_ports(u, &data, PA_DIRECTION_OUTPUT);
 
         u->sink = pa_sink_new(u->core, &data, PA_SINK_HARDWARE|PA_SINK_LATENCY);
         pa_sink_new_data_done(&data);
@@ -2032,11 +1699,7 @@ static int add_sink(struct userdata *u) {
 
         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_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));
+        u->sink->set_port = sink_set_port_cb;
     }
 
     if (u->profile == PROFILE_HSP) {
@@ -2057,7 +1720,7 @@ static int add_source(struct userdata *u) {
 
     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);
@@ -2070,8 +1733,8 @@ static int add_source(struct userdata *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");
-        if ((u->profile == PROFILE_HSP) || (u->profile == PROFILE_HFGW))
+        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;
@@ -2084,6 +1747,7 @@ static int add_source(struct userdata *u) {
             return -1;
         }
 
+        connect_ports(u, &data, PA_DIRECTION_INPUT);
         u->source = pa_source_new(u->core, &data, PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY);
         pa_source_new_data_done(&data);
 
@@ -2094,20 +1758,17 @@ static int add_source(struct userdata *u) {
 
         u->source->userdata = u;
         u->source->parent.process_msg = source_process_msg;
-
-        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));
+        u->source->set_port = source_set_port_cb;
     }
 
     if ((u->profile == PROFILE_HSP) || (u->profile == PROFILE_HFGW)) {
-        if (u->transport) {
-            const 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");
-        } else
-            pa_proplist_sets(u->source->proplist, "bluetooth.nrec", (u->hsp.pcm_capabilities.flags & BT_PCM_FLAG_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);
     }
 
     if (u->profile == PROFILE_HSP) {
@@ -2122,31 +1783,7 @@ static int add_source(struct userdata *u) {
     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) {
+static void bt_transport_config_a2dp(struct userdata *u) {
     const pa_bluetooth_transport *t;
     struct a2dp_info *a2dp = &u->a2dp;
     a2dp_sbc_t *config;
@@ -2253,55 +1890,17 @@ static int bt_transport_config_a2dp(struct userdata *u) {
     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);
-
     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);
-
-    return 0;
 }
 
-static int bt_transport_config(struct userdata *u) {
+static void bt_transport_config(struct userdata *u) {
     if (u->profile == PROFILE_HSP || u->profile == PROFILE_HFGW) {
-        u->block_size = u->link_mtu;
         u->sample_spec.format = PA_SAMPLE_S16LE;
         u->sample_spec.channels = 1;
         u->sample_spec.rate = 8000;
-        return 0;
-    }
-
-    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;
+    } else
+        bt_transport_config_a2dp(u);
 }
 
 /* Run from main thread */
@@ -2325,27 +1924,17 @@ static int setup_bt(struct userdata *u) {
 
     /* 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");
+    bt_transport_config(u);
 
     return 0;
 }
@@ -2401,6 +1990,11 @@ static void stop_thread(struct userdata *u) {
         u->hsp.source_state_changed_slot = NULL;
     }
 
+    if (u->hsp.nrec_changed_slot) {
+        pa_hook_slot_free(u->hsp.nrec_changed_slot);
+        u->hsp.nrec_changed_slot = NULL;
+    }
+
     if (u->sink) {
         if (u->profile == PROFILE_HSP) {
             k = pa_sprintf_malloc("bluetooth-device@%p", (void*) u->sink);
@@ -2540,12 +2134,13 @@ static int card_set_profile(pa_card *c, pa_card_profile *new_profile) {
     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;
     }
@@ -2565,7 +2160,12 @@ static int card_set_profile(pa_card *c, pa_card_profile *new_profile) {
     }
 
     stop_thread(u);
-    shutdown_bt(u);
+
+    if (u->profile != PROFILE_OFF && u->transport) {
+        bt_transport_release(u);
+        pa_xfree(u->transport);
+        u->transport = NULL;
+    }
 
     if (USE_SCO_OVER_PCM(u))
         restore_sco_volume_callbacks(u);
@@ -2576,8 +2176,6 @@ static int card_set_profile(pa_card *c, pa_card_profile *new_profile) {
     if (USE_SCO_OVER_PCM(u))
         save_sco_volume_callbacks(u);
 
-    init_bt(u);
-
     if (u->profile != PROFILE_OFF)
         init_profile(u);
 
@@ -2601,6 +2199,75 @@ static int card_set_profile(pa_card *c, pa_card_profile *new_profile) {
     return 0;
 }
 
+static void create_ports_for_profile(struct userdata *u, const pa_bluetooth_device *device, pa_card_new_data *card_new_data, pa_card_profile *profile) {
+    pa_device_port *port;
+    enum profile *d;
+
+    d = PA_CARD_PROFILE_DATA(profile);
+
+    switch (*d) {
+        case PROFILE_A2DP:
+            pa_assert_se(port = pa_device_port_new(u->core, "a2dp-output", _("Bluetooth High Quality (A2DP)"), 0));
+            pa_assert_se(pa_hashmap_put(card_new_data->ports, port->name, port) >= 0);
+            port->is_output = 1;
+            port->is_input = 0;
+            port->priority = profile->priority * 100;
+            port->available = audio_state_to_availability(device->audio_sink_state);
+            pa_hashmap_put(port->profiles, profile->name, profile);
+            break;
+
+        case PROFILE_A2DP_SOURCE:
+            pa_assert_se(port = pa_device_port_new(u->core, "a2dp-input", _("Bluetooth High Quality (A2DP)"), 0));
+            pa_assert_se(pa_hashmap_put(card_new_data->ports, port->name, port) >= 0);
+            port->is_output = 0;
+            port->is_input = 1;
+            port->priority = profile->priority * 100;
+            port->available = audio_state_to_availability(device->audio_source_state);
+            pa_hashmap_put(port->profiles, profile->name, profile);
+            break;
+
+        case PROFILE_HSP:
+            pa_assert_se(port = pa_device_port_new(u->core, "hsp-output", _("Bluetooth Telephony (HSP/HFP)"), 0));
+            pa_assert_se(pa_hashmap_put(card_new_data->ports, port->name, port) >= 0);
+            port->is_output = 1;
+            port->is_input = 0;
+            port->priority = profile->priority * 100;
+            port->available = audio_state_to_availability(device->headset_state);
+            pa_hashmap_put(port->profiles, profile->name, profile);
+
+            pa_assert_se(port = pa_device_port_new(u->core, "hsp-input", _("Bluetooth Telephony (HSP/HFP)"), 0));
+            pa_assert_se(pa_hashmap_put(card_new_data->ports, port->name, port) >= 0);
+            port->is_output = 0;
+            port->is_input = 1;
+            port->priority = profile->priority * 100;
+            port->available = audio_state_to_availability(device->headset_state);
+            pa_hashmap_put(port->profiles, profile->name, profile);
+            break;
+
+        case PROFILE_HFGW:
+            pa_assert_se(port = pa_device_port_new(u->core, "hfgw-output", _("Bluetooth Handsfree Gateway"), 0));
+            pa_assert_se(pa_hashmap_put(card_new_data->ports, port->name, port) >= 0);
+            port->is_output = 1;
+            port->is_input = 0;
+            port->priority = profile->priority * 100;
+            port->available = audio_state_to_availability(device->hfgw_state);
+            pa_hashmap_put(port->profiles, profile->name, profile);
+
+            pa_assert_se(port = pa_device_port_new(u->core, "hfgw-input", _("Bluetooth Handsfree Gateway"), 0));
+            pa_assert_se(pa_hashmap_put(card_new_data->ports, port->name, port) >= 0);
+            port->is_output = 0;
+            port->is_input = 1;
+            port->priority = profile->priority * 100;
+            port->available = audio_state_to_availability(device->hfgw_state);
+            pa_hashmap_put(port->profiles, profile->name, profile);
+            break;
+
+        default:
+            pa_assert_not_reached();
+    }
+
+}
+
 /* Run from main thread */
 static int add_card(struct userdata *u, const pa_bluetooth_device *device) {
     pa_card_new_data data;
@@ -2655,6 +2322,7 @@ static int add_card(struct userdata *u, const pa_bluetooth_device *device) {
 
         d = PA_CARD_PROFILE_DATA(p);
         *d = PROFILE_A2DP;
+        create_ports_for_profile(u, device, &data, p);
 
         pa_hashmap_put(data.profiles, p->name, p);
     }
@@ -2669,6 +2337,7 @@ static int add_card(struct userdata *u, const pa_bluetooth_device *device) {
 
         d = PA_CARD_PROFILE_DATA(p);
         *d = PROFILE_A2DP_SOURCE;
+        create_ports_for_profile(u, device, &data, p);
 
         pa_hashmap_put(data.profiles, p->name, p);
     }
@@ -2684,6 +2353,7 @@ static int add_card(struct userdata *u, const pa_bluetooth_device *device) {
 
         d = PA_CARD_PROFILE_DATA(p);
         *d = PROFILE_HSP;
+        create_ports_for_profile(u, device, &data, p);
 
         pa_hashmap_put(data.profiles, p->name, p);
     }
@@ -2698,6 +2368,7 @@ static int add_card(struct userdata *u, const pa_bluetooth_device *device) {
 
         d = PA_CARD_PROFILE_DATA(p);
         *d = PROFILE_HFGW;
+        create_ports_for_profile(u, device, &data, p);
 
         pa_hashmap_put(data.profiles, p->name, p);
     }
@@ -2731,6 +2402,7 @@ static int add_card(struct userdata *u, const pa_bluetooth_device *device) {
 
     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");
@@ -2806,7 +2478,7 @@ int pa__init(pa_module* m) {
     struct userdata *u;
     const char *address, *path;
     DBusError err;
-    char *mike, *speaker, *transport;
+    char *mike, *speaker;
     const pa_bluetooth_device *device;
 
     pa_assert(m);
@@ -2821,7 +2493,6 @@ int pa__init(pa_module* m) {
     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;
@@ -2875,6 +2546,12 @@ int pa__init(pa_module* m) {
     if (add_card(u, device) < 0)
         goto fail;
 
+    if (!(u->msg = pa_msgobject_new(bluetooth_msg)))
+        goto fail;
+
+    u->msg->parent.process_msg = device_process_msg;
+    u->msg->card = u->card;
+
     if (!dbus_connection_add_filter(pa_dbus_connection_get(u->connection), filter_cb, u, NULL)) {
         pa_log_error("Failed to add filter function");
         goto fail;
@@ -2883,18 +2560,20 @@ int pa__init(pa_module* m) {
 
     speaker = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.Headset',member='SpeakerGainChanged',path='%s'", u->path);
     mike = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.Headset',member='MicrophoneGainChanged',path='%s'", u->path);
-    transport = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.MediaTransport',member='PropertyChanged'");
 
     if (pa_dbus_add_matches(
                 pa_dbus_connection_get(u->connection), &err,
                 speaker,
                 mike,
-                transport,
+                "type='signal',sender='org.bluez',interface='org.bluez.MediaTransport',member='PropertyChanged'",
+                "type='signal',sender='org.bluez',interface='org.bluez.HandsfreeGateway',member='PropertyChanged'",
+                "type='signal',sender='org.bluez',interface='org.bluez.Headset',member='PropertyChanged'",
+                "type='signal',sender='org.bluez',interface='org.bluez.AudioSource',member='PropertyChanged'",
+                "type='signal',sender='org.bluez',interface='org.bluez.AudioSink',member='PropertyChanged'",
                 NULL) < 0) {
 
         pa_xfree(speaker);
         pa_xfree(mike);
-        pa_xfree(transport);
 
         pa_log("Failed to add D-Bus matches: %s", err.message);
         goto fail;
@@ -2902,10 +2581,6 @@ int pa__init(pa_module* m) {
 
     pa_xfree(speaker);
     pa_xfree(mike);
-    pa_xfree(transport);
-
-    /* Connect to the BT service */
-    init_bt(u);
 
     if (u->profile != PROFILE_OFF)
         if (init_profile(u) < 0)
@@ -2963,7 +2638,10 @@ void pa__done(pa_module *m) {
             speaker = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.Headset',member='SpeakerGainChanged',path='%s'", u->path);
             mike = pa_sprintf_malloc("type='signal',sender='org.bluez',interface='org.bluez.Headset',member='MicrophoneGainChanged',path='%s'", u->path);
 
-            pa_dbus_remove_matches(pa_dbus_connection_get(u->connection), speaker, mike, NULL);
+            pa_dbus_remove_matches(pa_dbus_connection_get(u->connection), speaker, mike,
+                "type='signal',sender='org.bluez',interface='org.bluez.MediaTransport',member='PropertyChanged'",
+                "type='signal',sender='org.bluez',interface='org.bluez.HandsfreeGateway',member='PropertyChanged'",
+                NULL);
 
             pa_xfree(speaker);
             pa_xfree(mike);
@@ -2975,14 +2653,15 @@ void pa__done(pa_module *m) {
         pa_dbus_connection_unref(u->connection);
     }
 
+    if (u->msg)
+        pa_xfree(u->msg);
+
     if (u->card)
         pa_card_free(u->card);
 
     if (u->read_smoother)
         pa_smoother_free(u->read_smoother);
 
-    shutdown_bt(u);
-
     if (u->a2dp.buffer)
         pa_xfree(u->a2dp.buffer);