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authorLuiz Augusto von Dentz <luiz.dentz-von@nokia.com>2010-10-07 17:22:41 +0300
committerLuiz Augusto von Dentz <luiz.dentz-von@nokia.com>2010-10-07 17:22:41 +0300
commit8f3ef04b4310bfbbe0aa8042585340e1832cacf6 (patch)
treeeca67c7b2b395b6a3d063db89efe1c8c818f07b2 /src/modules/bluetooth/module-bluetooth-device.c
parent3de129f3ac8dd6cf51178b266837db4d5e4a1215 (diff)
bluetooth: Add support for Media API
Make use of D-Bus to transfer file descriptors.
Diffstat (limited to 'src/modules/bluetooth/module-bluetooth-device.c')
-rw-r--r--src/modules/bluetooth/module-bluetooth-device.c461
1 files changed, 402 insertions, 59 deletions
diff --git a/src/modules/bluetooth/module-bluetooth-device.c b/src/modules/bluetooth/module-bluetooth-device.c
index 61fe3697..c7ac7fa6 100644
--- a/src/modules/bluetooth/module-bluetooth-device.c
+++ b/src/modules/bluetooth/module-bluetooth-device.c
@@ -48,6 +48,7 @@
#include <pulsecore/time-smoother.h>
#include <pulsecore/namereg.h>
#include <pulsecore/dbus-shared.h>
+#include <pulsecore/llist.h>
#include "module-bluetooth-device-symdef.h"
#include "ipc.h"
@@ -129,20 +130,15 @@ struct hsp_info {
pa_hook_slot *source_state_changed_slot;
};
-enum profile {
- PROFILE_A2DP,
- PROFILE_A2DP_SOURCE,
- PROFILE_HSP,
- PROFILE_HFGW,
- PROFILE_OFF
-};
-
struct userdata {
pa_core *core;
pa_module *module;
char *address;
char *path;
+ char *transport;
+ char *accesstype;
+
pa_bluetooth_discovery *discovery;
pa_bool_t auto_connect;
@@ -202,10 +198,14 @@ static int service_send(struct userdata *u, const bt_audio_msg_header_t *msg) {
ssize_t r;
pa_assert(u);
- pa_assert(u->service_fd >= 0);
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)));
@@ -745,6 +745,41 @@ static int set_conf(struct userdata *u) {
}
/* from IO thread, except in SCO over PCM */
+
+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!");
+
+ 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;
+
+ u->read_index = u->write_index = 0;
+ u->started_at = 0;
+
+ 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;
+}
+
static int start_stream_fd(struct userdata *u) {
union {
bt_audio_msg_header_t rsp;
@@ -754,8 +789,6 @@ static int start_stream_fd(struct userdata *u) {
bt_audio_error_t error;
uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
} msg;
- struct pollfd *pollfd;
- int one;
pa_assert(u);
pa_assert(u->rtpoll);
@@ -781,34 +814,7 @@ static int start_stream_fd(struct userdata *u) {
return -1;
}
- 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!");
-
- 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;
-
- u->read_index = u->write_index = 0;
- u->started_at = 0;
-
- 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;
+ return setup_stream(u);
}
/* from IO thread */
@@ -852,6 +858,76 @@ static int stop_stream_fd(struct userdata *u) {
return r;
}
+static void bt_transport_release(struct userdata *u)
+{
+ const char *accesstype = "rw";
+ const pa_bluetooth_transport *t;
+
+ /* Ignore if already released */
+ if (!u->accesstype)
+ return;
+
+ pa_log_debug("Releasing transport %s", u->transport);
+
+ t = pa_bluetooth_discovery_get_transport(u->discovery, u->transport);
+ if (t)
+ pa_bluetooth_transport_release(t, accesstype);
+
+ pa_xfree(u->accesstype);
+ u->accesstype = NULL;
+
+ if (u->rtpoll_item) {
+ pa_rtpoll_item_free(u->rtpoll_item);
+ u->rtpoll_item = NULL;
+ }
+
+ if (u->stream_fd >= 0) {
+ pa_close(u->stream_fd);
+ u->stream_fd = -1;
+ }
+
+ if (u->read_smoother) {
+ pa_smoother_free(u->read_smoother);
+ u->read_smoother = NULL;
+ }
+}
+
+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 (start)
+ goto done;
+ return 0;
+ }
+
+ pa_log_debug("Acquiring transport %s", u->transport);
+
+ t = pa_bluetooth_discovery_get_transport(u->discovery, u->transport);
+ if (!t) {
+ pa_log("Transport %s no longer available", u->transport);
+ pa_xfree(u->transport);
+ u->transport = NULL;
+ return -1;
+ }
+
+ u->stream_fd = pa_bluetooth_transport_acquire(t, accesstype);
+ if (u->stream_fd < 0)
+ return -1;
+
+ u->accesstype = pa_xstrdup(accesstype);
+ pa_log_info("Transport %s acquired: fd %d", u->transport, u->stream_fd);
+
+ if (!start)
+ return 0;
+
+done:
+ pa_log_info("Transport %s resuming", u->transport);
+ return setup_stream(u);
+}
+
/* Run from IO thread */
static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
struct userdata *u = PA_SINK(o)->userdata;
@@ -870,11 +946,15 @@ static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offse
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 */
- stop_stream_fd(u);
+ if (u->transport)
+ bt_transport_release(u);
+ else
+ stop_stream_fd(u);
+ }
break;
@@ -884,9 +964,13 @@ static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offse
break;
/* Resume the device if the source was suspended as well */
- if (!u->source || u->source->state == PA_SOURCE_SUSPENDED)
- if (start_stream_fd(u) < 0)
+ 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)
failed = TRUE;
+ }
break;
case PA_SINK_UNLINKED:
@@ -942,8 +1026,12 @@ static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t off
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)
- stop_stream_fd(u);
+ if (!u->sink || u->sink->state == PA_SINK_SUSPENDED) {
+ if (u->transport)
+ bt_transport_release(u);
+ else
+ stop_stream_fd(u);
+ }
if (u->read_smoother)
pa_smoother_pause(u->read_smoother, pa_rtclock_now());
@@ -955,10 +1043,13 @@ static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t off
break;
/* Resume the device if the sink was suspended as well */
- if (!u->sink || u->sink->thread_info.state == PA_SINK_SUSPENDED)
- if (start_stream_fd(u) < 0)
+ 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)
+ failed = TRUE;
+ }
/* We don't resume the smoother here. Instead we
* wait until the first packet arrives */
break;
@@ -1414,7 +1505,10 @@ static void thread_func(void *userdata) {
pa_thread_mq_install(&u->thread_mq);
- if (start_stream_fd(u) < 0)
+ if (u->transport) {
+ if (bt_transport_acquire(u, TRUE) < 0)
+ goto fail;
+ } else if (start_stream_fd(u) < 0)
goto fail;
for (;;) {
@@ -1709,17 +1803,25 @@ static void sco_over_pcm_state_update(struct userdata *u) {
if (u->service_fd >= 0)
return;
+ init_bt(u);
+
pa_log_debug("Resuming SCO over PCM");
- if ((init_bt(u) < 0) || (init_profile(u) < 0))
+ if (init_profile(u) < 0)
pa_log("Can't resume SCO over PCM");
- start_stream_fd(u);
+ if (u->transport)
+ bt_transport_acquire(u, TRUE);
+ else
+ start_stream_fd(u);
} else {
if (u->service_fd < 0)
return;
- stop_stream_fd(u);
+ if (u->transport)
+ bt_transport_release(u);
+ else
+ stop_stream_fd(u);
pa_log_debug("Closing SCO over PCM");
pa_close(u->service_fd);
@@ -1906,6 +2008,218 @@ static void shutdown_bt(struct userdata *u) {
}
}
+static int bt_transport_config_a2dp(struct userdata *u)
+{
+ const pa_bluetooth_transport *t;
+ struct a2dp_info *a2dp = &u->a2dp;
+ sbc_capabilities_raw_t *config;
+
+ t = pa_bluetooth_discovery_get_transport(u->discovery, u->transport);
+ pa_assert(t);
+
+ config = (sbc_capabilities_raw_t *) t->config;
+
+ if (a2dp->sbc_initialized)
+ sbc_reinit(&a2dp->sbc, 0);
+ else
+ sbc_init(&a2dp->sbc, 0);
+ a2dp->sbc_initialized = TRUE;
+
+ switch (config->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 (config->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 (config->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 (config->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 (config->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->sbc.bitpool = config->max_bitpool;
+ 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)
+{
+ if (u->profile == PROFILE_HSP || u->profile == PROFILE_HFGW) {
+ u->block_size = u->link_mtu;
+ return 0;
+ }
+
+ return bt_transport_config_a2dp(u);
+}
+
+static int parse_transport_property(struct userdata *u, DBusMessageIter *i)
+{
+ const char *key;
+ DBusMessageIter variant_i;
+
+ pa_assert(u);
+ pa_assert(i);
+
+ if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
+ pa_log("Property name not a string.");
+ return -1;
+ }
+
+ dbus_message_iter_get_basic(i, &key);
+
+ if (!dbus_message_iter_next(i)) {
+ pa_log("Property value missing");
+ return -1;
+ }
+
+ if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
+ pa_log("Property value not a variant.");
+ return -1;
+ }
+
+ dbus_message_iter_recurse(i, &variant_i);
+
+ switch (dbus_message_iter_get_arg_type(&variant_i)) {
+
+ case DBUS_TYPE_UINT16: {
+
+ uint16_t value;
+ dbus_message_iter_get_basic(&variant_i, &value);
+
+ if (pa_streq(key, "OMTU"))
+ u->link_mtu = value;
+
+ break;
+ }
+
+ }
+
+ return 0;
+}
+
+/* Run from main thread */
+static int bt_transport_open(struct userdata *u)
+{
+ DBusMessage *m, *r;
+ DBusMessageIter arg_i, element_i;
+ DBusError err;
+
+ if (bt_transport_acquire(u, FALSE) < 0)
+ return -1;
+
+ dbus_error_init(&err);
+
+ pa_assert_se(m = dbus_message_new_method_call("org.bluez", u->transport, "org.bluez.MediaTransport", "GetProperties"));
+ r = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(u->connection), m, -1, &err);
+
+ if (dbus_error_is_set(&err) || !r) {
+ pa_log("Failed to get transport properties: %s", err.message);
+ goto fail;
+ }
+
+ if (!dbus_message_iter_init(r, &arg_i)) {
+ pa_log("GetProperties reply has no arguments.");
+ goto fail;
+ }
+
+ if (dbus_message_iter_get_arg_type(&arg_i) != DBUS_TYPE_ARRAY) {
+ pa_log("GetProperties argument is not an array.");
+ goto fail;
+ }
+
+ dbus_message_iter_recurse(&arg_i, &element_i);
+ while (dbus_message_iter_get_arg_type(&element_i) != DBUS_TYPE_INVALID) {
+
+ if (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
+ DBusMessageIter dict_i;
+
+ dbus_message_iter_recurse(&element_i, &dict_i);
+
+ parse_transport_property(u, &dict_i);
+ }
+
+ if (!dbus_message_iter_next(&element_i))
+ break;
+ }
+
+ return bt_transport_config(u);
+
+fail:
+ dbus_message_unref(r);
+ return -1;
+}
+
/* Run from main thread */
static int init_bt(struct userdata *u) {
pa_assert(u);
@@ -1917,7 +2231,7 @@ static int init_bt(struct userdata *u) {
u->service_read_type = 0;
if ((u->service_fd = bt_audio_service_open()) < 0) {
- pa_log_error("Couldn't connect to bluetooth audio service");
+ pa_log_warn("Bluetooth audio service not available");
return -1;
}
@@ -1928,8 +2242,30 @@ static int init_bt(struct userdata *u) {
/* Run from main thread */
static int setup_bt(struct userdata *u) {
+ const pa_bluetooth_device *d;
+ const pa_bluetooth_transport *t;
+
pa_assert(u);
+ if (!(d = pa_bluetooth_discovery_get_by_path(u->discovery, u->path))) {
+ pa_log_error("Failed to get device object.");
+ return -1;
+ }
+
+ /* release transport if exist */
+ if (u->transport) {
+ bt_transport_release(u);
+ pa_xfree(u->transport);
+ u->transport = NULL;
+ }
+
+ /* 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)
return -1;
@@ -2036,7 +2372,10 @@ static int start_thread(struct userdata *u) {
#ifdef NOKIA
if (USE_SCO_OVER_PCM(u)) {
- if (start_stream_fd(u) < 0)
+ if (u->transport) {
+ if (bt_transport_acquire(u, TRUE) < 0)
+ return -1;
+ } else if (start_stream_fd(u) < 0)
return -1;
pa_sink_ref(u->sink);
@@ -2316,7 +2655,7 @@ static const pa_bluetooth_device* find_device(struct userdata *u, const char *ad
}
if (address && !(pa_streq(d->address, address))) {
- pa_log_error("Passed path %s and address %s don't match.", path, address);
+ pa_log_error("Passed path %s address %s != %s don't match.", path, d->address, address);
return NULL;
}
@@ -2429,10 +2768,6 @@ int pa__init(pa_module* m) {
if (add_card(u, device) < 0)
goto fail;
- /* Connect to the BT service and query capabilities */
- if (init_bt(u) < 0)
- goto fail;
-
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;
@@ -2458,6 +2793,9 @@ int pa__init(pa_module* m) {
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;
@@ -2552,6 +2890,11 @@ void pa__done(pa_module *m) {
pa_xfree(u->address);
pa_xfree(u->path);
+ if (u->transport) {
+ bt_transport_release(u);
+ pa_xfree(u->transport);
+ }
+
if (u->discovery)
pa_bluetooth_discovery_unref(u->discovery);