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authorJoão Paulo Rechi Vita <joao.vita@gmail.com>2008-07-31 20:16:43 -0300
committerLennart Poettering <lennart@poettering.net>2008-09-11 01:12:03 +0300
commitee68292c6165218bf8c488edb38036dae780766a (patch)
treeee24dba74ba698c0704a8cd99fefef386d530656 /src
parentd8a0ec53da1afa182ab246f8798160ba1047b749 (diff)
Initial file for module-bt-device
Diffstat (limited to 'src')
-rw-r--r--src/modules/module-bt-device.c154
1 files changed, 154 insertions, 0 deletions
diff --git a/src/modules/module-bt-device.c b/src/modules/module-bt-device.c
new file mode 100644
index 00000000..8690e313
--- /dev/null
+++ b/src/modules/module-bt-device.c
@@ -0,0 +1,154 @@
+/***
+ This file is part of PulseAudio.
+
+ Copyright 2008 Joao Paulo Rechi Vita
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License,
+ or (at your option) any later version.
+
+ PulseAudio is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with PulseAudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+
+ 1. Connects to the BlueZ audio service via one BlueZ specific well known unix socket
+ bluez/audio/ipc: bt_audio_service_open()
+ 2. Configures a connection to the BT device
+ 3. Gets a BT socket fd passed in via the unix socket
+ bluez/audio/ipc: bt_audio_service_get_data_fd()
+ 4. Hands this over to its RT thread.
+ pa_thread_mq
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <pulse/xmalloc.h>
+#include <pulsecore/module.h>
+#include <pulsecore/modargs.h>
+
+#include "dbus-util.h"
+#include "module-bt-device-symdef.h"
+#include "bt-ipc.h"
+
+PA_MODULE_AUTHOR("Joao Paulo Rechi Vita");
+PA_MODULE_DESCRIPTION("Bluetooth audio sink and source");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_LOAD_ONCE(FALSE);
+PA_MODULE_USAGE(
+ "addr=<address of the device> "
+ "uuid=<the profile that this device will work on>");
+
+struct userdata {
+ pa_core *core;
+ pa_module *module;
+ pa_sink *sink;
+
+ const char *addr;
+ const char *uuid;
+};
+
+static const char* const valid_modargs[] = {
+ "addr",
+ "uuid",
+ NULL
+};
+
+static int audioservice_send(int sk, const bt_audio_msg_header_t *msg) {
+ int e;
+ pa_log("sending %s", bt_audio_strmsg(msg->msg_type)); /*debug*/
+ if (send(sk, msg, BT_AUDIO_IPC_PACKET_SIZE, 0) > 0)
+ e = 0;
+ else {
+ e = -errno;
+ pa_log_error("Error sending data to audio service: %s(%d)", strerror(errno), errno);
+ }
+ return e;
+}
+
+static int audioservice_recv(int sk, bt_audio_msg_header_t *inmsg) {
+ int err;
+ const char *type;
+
+ pa_log/*_debug*/("trying to receive msg from audio service...");
+ if (recv(sk, inmsg, BT_AUDIO_IPC_PACKET_SIZE, 0) > 0) {
+ type = bt_audio_strmsg(inmsg->msg_type);
+ if (type) {
+ pa_log/*_debug*/("Received %s", type);
+ err = 0;
+ }
+ else {
+ err = -EINVAL;
+ pa_log_error("Bogus message type %d received from audio service", inmsg->msg_type);
+ }
+ }
+ else {
+ err = -errno;
+ pa_log_error("Error receiving data from audio service: %s(%d)", strerror(errno), errno);
+ }
+
+ return err;
+}
+
+static int audioservice_expect(int sk, bt_audio_msg_header_t *rsp_hdr, int expected_type) {
+ int err = audioservice_recv(sk, rsp_hdr);
+ if (err == 0) {
+ if (rsp_hdr->msg_type != expected_type) {
+ err = -EINVAL;
+ pa_log_error("Bogus message %s received while %s was expected", bt_audio_strmsg(rsp_hdr->msg_type),
+ bt_audio_strmsg(expected_type));
+ }
+ }
+ return err;
+}
+
+int pa__init(pa_module* m) {
+ pa_modargs *ma;
+ struct userdata *u;
+ int sk = -1;
+
+ pa_assert(m);
+ m->userdata = u = pa_xnew0(struct userdata, 1);
+ u->module = m;
+
+ if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
+ pa_log_error("failed to parse module arguments");
+ goto fail;
+ }
+ if (!(u->addr = pa_modargs_get_value(ma, "addr", NULL))) {
+ pa_log_error("failed to parse device address from module arguments");
+ goto fail;
+ }
+ if (!(u->uuid = pa_modargs_get_value(ma, "uuid", NULL))) {
+ pa_log_error("failed to parse device uuid from module arguments");
+ goto fail;
+ }
+ pa_log("Loading module-bt-device for %s, UUID=%s", u->addr, u->uuid);
+
+ /* Connects to the BlueZ audio service via one BlueZ specific well known unix socket */
+ sk = bt_audio_service_open();
+ if (sk <= 0) {
+ pa_log_error("couldn't connect to bluetooth audio service");
+ goto fail;
+ }
+ pa_log("socket to audio service: %d", sk); /*debug*/
+
+ return 0;
+
+fail:
+ pa__done(m);
+ return -1;
+}
+
+void pa__done(pa_module *m) {
+ pa_log("Unloading module-bt-device");
+}
+