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authorJoão Paulo Rechi Vita <joao.vita@gmail.com>2008-07-17 16:29:49 -0300
committerLennart Poettering <lennart@poettering.net>2008-09-11 01:12:01 +0300
commit8b511f55985c4c881f34a2bd625450dee3dc7c4a (patch)
tree1a917c4c062bab42510ed226b2d9276c1a9cdf66 /src/modules
parent2ab4bb76b217e481cf28cff0138726d9a7672895 (diff)
Adding module-bt-discover
Diffstat (limited to 'src/modules')
-rw-r--r--src/modules/module-bt-discover.c461
1 files changed, 461 insertions, 0 deletions
diff --git a/src/modules/module-bt-discover.c b/src/modules/module-bt-discover.c
new file mode 100644
index 00000000..f855ad15
--- /dev/null
+++ b/src/modules/module-bt-discover.c
@@ -0,0 +1,461 @@
+/* TODO LIST
+ * listen to signals AdapterAdded, AdapterRemoved, DeviceCreated and DeviceRemoved
+ * listen to org.freedesktop.DBus.NameOwnerChanged, to properly handle hcid activity
+ */
+
+/***
+ 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.
+***/
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <pulse/xmalloc.h>
+#include <pulsecore/module.h>
+#include <pulsecore/modargs.h>
+
+#include "dbus-util.h"
+/* TODO: Create symdef file for static linking
+ * #include "module-bt-proximity-symdef.h" */
+
+PA_MODULE_AUTHOR("Joao Paulo Rechi Vita");
+PA_MODULE_DESCRIPTION("Detect available bluetooth audio devices and load bluetooth audio drivers");
+PA_MODULE_VERSION(PACKAGE_VERSION);
+PA_MODULE_USAGE("");
+
+#define AUDIO_DEVICE_INTERFACE "org.bluez.audio.Device"
+#define GENERIC_AUDIO_UUID "00001203-0000-1000-8000-00805F9B34FB"
+#define HSP_HS_UUID "00001108-0000-1000-8000-00805F9B34FB"
+#define HSP_AG_UUID "00001112-0000-1000-8000-00805F9B34FB"
+#define HFP_HS_UUID "0000111E-0000-1000-8000-00805F9B34FB"
+#define HFP_AG_UUID "0000111F-0000-1000-8000-00805F9B34FB"
+#define ADVANCED_AUDIO_UUID "0000110D-0000-1000-8000-00805F9B34FB"
+#define A2DP_SOURCE_UUID "0000110A-0000-1000-8000-00805F9B34FB"
+#define A2DP_SINK_UUID "0000110B-0000-1000-8000-00805F9B34FB"
+#define AVRCP_REMOTE_UUID "0000110E-0000-1000-8000-00805F9B34FB"
+#define AVRCP_TARGET_UUID "0000110C-0000-1000-8000-00805F9B34FB"
+
+#define VERBOSE 1
+
+typedef struct adapter adapter_t;
+typedef struct device device_t;
+typedef struct uuid uuid_t;
+
+struct uuid {
+ char *uuid;
+ uuid_t *next;
+};
+
+struct device {
+ char *name;
+ char *object_path;
+ int paired;
+ adapter_t *adapter;
+ char *alias;
+ int connected;
+ uuid_t *uuid_list;
+ char *address;
+ int class;
+ int trusted;
+ device_t *next;
+};
+
+struct adapter {
+ char *object_path;
+ char *mode;
+ char *address;
+ device_t *device_list;
+ adapter_t *next;
+};
+
+struct userdata {
+ pa_module *module;
+ pa_dbus_connection *conn;
+ adapter_t *adapter_list;
+};
+
+uuid_t *uuid_new(const char *uuid) {
+ uuid_t *node = pa_xnew0(uuid_t, 1);
+ node->uuid = pa_xstrdup(uuid);
+ node->next = NULL;
+ return node;
+}
+
+void uuid_list_append(uuid_t *node, const char *uuid) {
+ while (node->next != NULL) node = node->next;
+ node->next = uuid_new(uuid);
+}
+
+device_t *device_new(const char *device, adapter_t *adapter) {
+ device_t *node = pa_xnew0(device_t, 1);
+ node->name = NULL;
+ node->object_path = pa_xstrdup(device);
+ node->paired = -1;
+ node->adapter = adapter;
+ node->alias = NULL;
+ node->connected = -1;
+ node->uuid_list = uuid_new("UUID_HEAD");
+ node->address = NULL;
+ node->class = -1;
+ node->trusted = -1;
+ node->next = NULL;
+ return node;
+}
+
+void device_list_append(device_t *node, const char *device, adapter_t *adapter) {
+ while (node->next != NULL) node = node->next;
+ node->next = device_new(device, adapter);
+}
+
+adapter_t *adapter_new(const char *adapter) {
+ adapter_t *node = pa_xnew0(adapter_t, 1);
+ node->object_path = pa_xstrdup(adapter);
+ node->mode = NULL;
+ node->address = NULL;
+ node->device_list = device_new("/DEVICE_HEAD", NULL);
+ node->next = NULL;
+ return node;
+}
+
+void adapter_list_append(adapter_t *node, const char *adapter) {
+ while (node->next != NULL) node = node->next;
+ node->next = adapter_new(adapter);
+}
+
+void print_devices(device_t *device_list) {
+ device_t *device_list_i = device_list;
+ while (device_list_i != NULL) {
+ uuid_t *uuid_list_i = device_list_i->uuid_list;
+ if (strcmp(device_list_i->object_path, "/DEVICE_HEAD") != 0) {
+ pa_log(" [ %s ]", device_list_i->object_path);
+ pa_log(" Name = %s", device_list_i->name);
+ pa_log(" Paired = %d", device_list_i->paired);
+ pa_log(" Adapter = %s", device_list_i->adapter->object_path);
+ pa_log(" Alias = %s", device_list_i->alias);
+ pa_log(" Connected = %d", device_list_i->connected);
+ pa_log(" UUIDs = ");
+ while (uuid_list_i != NULL) {
+ if (strcmp(uuid_list_i->uuid, "UUID_HEAD") != 0) {
+ pa_log(" %s", uuid_list_i->uuid);
+ }
+ uuid_list_i = uuid_list_i->next;
+ }
+ pa_log(" Address = %s", device_list_i->address);
+ pa_log(" Class = 0x%x", device_list_i->class);
+ pa_log(" Trusted = %d", device_list_i->trusted);
+ }
+ device_list_i = device_list_i->next;
+ }
+}
+
+void print_adapters(adapter_t *adapter_list) {
+ adapter_t *adapter_list_i = adapter_list;
+ while (adapter_list_i != NULL) {
+ if (strcmp(adapter_list_i->object_path, "/ADAPTER_HEAD") != 0) {
+ pa_log("[ %s ]", adapter_list_i->object_path);
+ pa_log(" Mode = %s", adapter_list_i->mode);
+ pa_log(" Address = %s", adapter_list_i->address);
+ print_devices(adapter_list_i->device_list);
+ }
+ adapter_list_i = adapter_list_i->next;
+ }
+}
+
+DBusMessageIter call_dbus_method(pa_dbus_connection *conn, const char *destination, const char *path, const char *interface,
+ const char *method) {
+ DBusMessage *msg;
+ DBusPendingCall *pending;
+ DBusMessageIter args;
+
+ /* construct the DBusMessage */
+ msg = dbus_message_new_method_call(destination, path, interface, method);
+
+ /* send the message and get a handle for a reply */
+ if (!dbus_connection_send_with_reply(pa_dbus_connection_get(conn), msg, &pending, -1)) {
+ pa_log("Out Of Memory!");
+ }
+ if (pending == NULL) {
+ pa_log("Pending Call Null");
+ }
+ dbus_connection_flush(pa_dbus_connection_get(conn));
+
+ /* free msg */
+ dbus_message_unref(msg);
+
+ /* wait for reply */
+ dbus_pending_call_block(pending);
+
+ /* get the reply */
+ msg = dbus_pending_call_steal_reply(pending);
+ if (msg == NULL) {
+ pa_log("Reply Null");
+ }
+
+ /* free pending */
+ dbus_pending_call_unref(pending);
+
+ /* read the reply */
+ if (!dbus_message_iter_init(msg, &args))
+ pa_log("Reply has no arguments");
+
+ dbus_message_unref(msg);
+
+ return args;
+
+}
+
+void detect_adapters(adapter_t *adapter_list, pa_dbus_connection *conn) {
+ DBusMessageIter arg_i, element_i, dict_i, variant_i;
+ adapter_t *adapter_list_i;
+ const char *key, *value;
+
+ /* get adapters */
+ arg_i = call_dbus_method(conn, "org.bluez", "/", "org.bluez.Manager", "ListAdapters");
+ 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_OBJECT_PATH) {
+ dbus_message_iter_get_basic(&element_i, &value);
+ adapter_list_append(adapter_list, value);
+ }
+ dbus_message_iter_next(&element_i);
+ }
+
+ /* get adapter properties */
+ adapter_list_i = adapter_list->next;
+ while (adapter_list_i != NULL) {
+ arg_i = call_dbus_method(conn, "org.bluez", adapter_list_i->object_path, "org.bluez.Adapter", "GetProperties");
+ 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) {
+ dbus_message_iter_recurse(&element_i, &dict_i);
+ dbus_message_iter_get_basic(&dict_i, &key);
+ dbus_message_iter_next(&dict_i);
+ dbus_message_iter_recurse(&dict_i, &variant_i);
+ dbus_message_iter_get_basic(&variant_i, &value);
+ if (strcmp(key, "Mode") == 0) {
+ adapter_list_i->mode = pa_xstrdup(value);
+ }
+ else if (strcmp(key, "Address") == 0) {
+ adapter_list_i->address = pa_xstrdup(value);
+ }
+ }
+ dbus_message_iter_next(&element_i);
+ }
+ adapter_list_i = adapter_list_i->next;
+ }
+}
+
+void detect_devices(adapter_t *adapter_list, pa_dbus_connection *conn) {
+ DBusMessageIter arg_i, element_i, dict_i, variant_i;
+ adapter_t *adapter_list_i;
+ device_t *device_list_i, *device_list_prev_i;
+ const char *key, *value;
+ unsigned int uvalue;
+
+ /* get devices of each adapter */
+ adapter_list_i = adapter_list->next;
+ while (adapter_list_i != NULL) {
+ arg_i = call_dbus_method(conn, "org.bluez", adapter_list_i->object_path , "org.bluez.Adapter", "ListDevices");
+ 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_OBJECT_PATH) {
+ dbus_message_iter_get_basic(&element_i, &value);
+ device_list_append(adapter_list_i->device_list, value, adapter_list_i);
+ }
+ dbus_message_iter_next(&element_i);
+ }
+ adapter_list_i = adapter_list_i->next;
+ }
+
+ /* get device properties */
+ adapter_list_i = adapter_list->next;
+ while (adapter_list_i != NULL) {
+ device_list_prev_i = adapter_list_i->device_list;
+ device_list_i = adapter_list_i->device_list->next;
+ while (device_list_i != NULL) {
+ arg_i = call_dbus_method(conn, "org.bluez", device_list_i->object_path, "org.bluez.Device", "GetProperties");
+ 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) {
+ dbus_message_iter_recurse(&element_i, &dict_i);
+ dbus_message_iter_get_basic(&dict_i, &key);
+ dbus_message_iter_next(&dict_i);
+ dbus_message_iter_recurse(&dict_i, &variant_i);
+ if (strcmp(key, "Name") == 0) {
+ dbus_message_iter_get_basic(&variant_i, &value);
+ device_list_i->name = pa_xstrdup(value);
+ }
+ else if (strcmp(key, "Paired") == 0) {
+ dbus_message_iter_get_basic(&variant_i, &uvalue);
+ device_list_i->paired = uvalue;
+ }
+ else if (strcmp(key, "Alias") == 0) {
+ dbus_message_iter_get_basic(&variant_i, &value);
+ device_list_i->alias = pa_xstrdup(value);
+ }
+ else if (strcmp(key, "Connected") == 0) {
+ dbus_message_iter_get_basic(&variant_i, &uvalue);
+ device_list_i->connected = uvalue;
+ }
+ else if (strcmp(key, "UUIDs") == 0) {
+ DBusMessageIter uuid_i;
+ int is_audio_device = 0;
+ dbus_message_iter_recurse(&variant_i, &uuid_i);
+ while (dbus_message_iter_get_arg_type(&uuid_i) != DBUS_TYPE_INVALID) {
+ dbus_message_iter_get_basic(&uuid_i, &value);
+ if ( (strcmp(value, HSP_HS_UUID) == 0) || (strcmp(value, HFP_HS_UUID) == 0) ||
+ (strcmp(value, A2DP_SOURCE_UUID) == 0) || (strcmp(value, A2DP_SINK_UUID) == 0) )
+ is_audio_device = 1;
+ uuid_list_append(device_list_i->uuid_list, value);
+ dbus_message_iter_next(&uuid_i);
+ }
+ if (!is_audio_device) {
+ /* remove current device */
+ device_list_prev_i->next = device_list_i->next;
+ pa_xfree(device_list_i);
+ break;
+ }
+ }
+ else if (strcmp(key, "Address") == 0) {
+ dbus_message_iter_get_basic(&variant_i, &value);
+ device_list_i->address = pa_xstrdup(value);
+ }
+ else if (strcmp(key, "Class") == 0) {
+ dbus_message_iter_get_basic(&variant_i, &uvalue);
+ device_list_i->class = uvalue;
+ }
+ else if (strcmp(key, "Trusted") == 0) {
+ dbus_message_iter_get_basic(&variant_i, &uvalue);
+ device_list_i->trusted = uvalue;
+ }
+ }
+ dbus_message_iter_next(&element_i);
+ }
+ device_list_prev_i = device_list_prev_i->next;
+ if (device_list_prev_i == NULL)
+ device_list_i = NULL;
+ else
+ device_list_i = device_list_prev_i->next;
+ }
+ adapter_list_i = adapter_list_i->next;
+ }
+}
+
+void pa__done(pa_module* m) {
+ struct userdata *u;
+ adapter_t *adapter_list_i, *adapter_list_next_i;
+ device_t *device_list_i, *device_list_next_i;
+
+ pa_assert(m);
+
+ if (!(u = m->userdata))
+ return;
+
+ if ((adapter_list_i = u->adapter_list) != NULL) {
+ while ((adapter_list_next_i = adapter_list_i->next) != NULL) {
+ if ((device_list_i = adapter_list_i->device_list) != NULL) {
+ while ((device_list_next_i = device_list_i->next) != NULL) {
+ pa_xfree(device_list_i);
+ device_list_i = device_list_next_i;
+ }
+ pa_xfree(device_list_i);
+ }
+ pa_xfree(adapter_list_i);
+ adapter_list_i = adapter_list_next_i;
+ }
+ pa_xfree(adapter_list_i);
+ }
+
+ pa_dbus_connection_unref(u->conn);
+ pa_xfree(u);
+ pa_log("Unloading module-bt-discover");
+ return;
+}
+
+int pa__init(pa_module* m) {
+ pa_modargs *ma = NULL;
+ DBusError err;
+ DBusMessageIter arg_i, element_i;
+ adapter_t *adapter_list_i;
+ device_t *device_list_i;
+ const char *value;
+ unsigned int hcid_running = 0;
+ struct userdata *u;
+
+ pa_assert(m);
+ dbus_error_init(&err);
+ pa_log("Loading module-bt-discover");
+ m->userdata = u = pa_xnew0(struct userdata, 1);
+ u->module = m;
+
+ /* connect to the bus */
+ u->conn = pa_dbus_bus_get(m->core, DBUS_BUS_SYSTEM, &err);
+ if ( dbus_error_is_set(&err) || (u->conn == NULL) ) {
+ pa_log("Failed to get D-Bus connection: %s", err.message);
+ goto fail;
+ }
+
+ /* check if hcid is running */
+ arg_i = call_dbus_method(u->conn, "org.freedesktop.DBus", "/org/freedesktop/DBus" , "org.freedesktop.DBus", "ListNames");
+ 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_STRING) {
+ dbus_message_iter_get_basic(&element_i, &value);
+ if (strcmp(value, "org.bluez") == 0)
+ hcid_running = 1;
+ }
+ dbus_message_iter_next(&element_i);
+ }
+ if (!hcid_running) {
+ pa_log("hcid not running");
+ goto fail;
+ }
+
+ /* static detection of bluetooth devices */
+ u->adapter_list = adapter_new("/ADAPTER_HEAD");
+ detect_adapters(u->adapter_list, u->conn);
+ detect_devices(u->adapter_list, u->conn);
+
+ if (VERBOSE) print_adapters(u->adapter_list);
+
+ /* load device modules */
+ adapter_list_i = u->adapter_list->next;
+ while (adapter_list_i != NULL) {
+ device_list_i = adapter_list_i->device_list->next;
+ while (device_list_i != NULL) {
+ pa_log("Loading module-bt-device for %s", device_list_i->name); /* CHECK: Should it be name or alias? */
+ /* call module */
+ device_list_i = device_list_i->next;
+ }
+ adapter_list_i = adapter_list_i->next;
+ }
+
+ return 0;
+
+fail:
+ if (ma)
+ pa_modargs_free(ma);
+ dbus_error_free(&err);
+ pa__done(m);
+ return -1;
+}