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/***
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");
}
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