common/mm_sound_dbus.c

   1
   2 #include <gio/gio.h>
   3 #include <stdlib.h>
   4
   5 #include <mm_error.h>
   6 #include <mm_debug.h>
   7
   8 #include "../include/mm_sound_dbus.h"
   9 #include "../include/mm_sound_intf.h"
  10
  11 #define INTERFACE_DBUS                  "org.freedesktop.DBus.Properties"
  12 #define SIGNAL_PROP_CHANGED             "PropertiesChanged"
  13 #define METHOD_GET                      "Get"
  14 #define METHOD_SET                      "Set"
  15
  16 struct callback_data {
  17         mm_sound_dbus_callback user_cb;
  18         void *user_data;
  19         mm_sound_dbus_userdata_free free_func;
  20 };
  21
  22 struct dbus_path {
  23         char *bus_name;
  24         char *object;
  25         char *interface;
  26 };
  27
  28 const struct dbus_path g_paths[AUDIO_PROVIDER_MAX] = {
  29         [AUDIO_PROVIDER_SOUND_SERVER] = {
  30                 .bus_name = "org.tizen.SoundServer",
  31                 .object = "/org/tizen/SoundServer1",
  32                 .interface ="org.tizen.SoundServer1"
  33         },
  34         [AUDIO_PROVIDER_FOCUS_SERVER] = {
  35                 .bus_name = "org.tizen.FocusServer",
  36                 .object = "/org/tizen/FocusServer1",
  37                 .interface = "org.tizen.FocusServer1"
  38         },
  39         [AUDIO_PROVIDER_DEVICE_MANAGER] = {
  40                 .bus_name = "org.pulseaudio.Server",
  41                 .object = "/org/pulseaudio/DeviceManager",
  42                 .interface = "org.pulseaudio.DeviceManager"
  43         },
  44         [AUDIO_PROVIDER_STREAM_MANAGER] = {
  45                 .bus_name = "org.pulseaudio.Server",
  46                 .object = "/org/pulseaudio/StreamManager",
  47                 .interface = "org.pulseaudio.StreamManager"
  48         },
  49         [AUDIO_PROVIDER_AUDIO_CLIENT] = {
  50                 .bus_name = "org.tizen.AudioClient",
  51                 .object = "/org/tizen/AudioClient1",
  52                 .interface = "org.tizen.AudioClient1"
  53         }
  54 };
  55
  56 const mm_sound_dbus_method_info_t g_methods[AUDIO_METHOD_MAX] = {
  57         [AUDIO_METHOD_TEST] = {
  58                 .name = "MethodTest1",
  59         },
  60         [AUDIO_METHOD_PLAY_FILE_START] = {
  61                 .name = "PlayFileStart",
  62         },
  63         [AUDIO_METHOD_PLAY_FILE_START_WITH_STREAM_INFO] = {
  64                 .name = "PlayFileStartWithStreamInfo",
  65         },
  66         [AUDIO_METHOD_PLAY_FILE_STOP] = {
  67                 .name = "PlayFileStop",
  68         },
  69         [AUDIO_METHOD_PLAY_DTMF] = {
  70                 .name = "PlayDTMF",
  71         },
  72         [AUDIO_METHOD_PLAY_DTMF_WITH_STREAM_INFO] = {
  73                 .name = "PlayDTMFWithStreamInfo",
  74         },
  75         [AUDIO_METHOD_CLEAR_FOCUS] = {
  76                 .name = "ClearFocus",
  77         },
  78         [AUDIO_METHOD_SET_VOLUME_LEVEL] = {
  79                 .name = "SetVolumeLevel",
  80         },
  81         [AUDIO_METHOD_GET_CONNECTED_DEVICE_LIST] = {
  82                 .name = "GetConnectedDeviceList",
  83         },
  84         [AUDIO_METHOD_GET_UNIQUE_ID] = {
  85                 .name = "GetUniqueId",
  86         },
  87         [AUDIO_METHOD_REGISTER_FOCUS] = {
  88                 .name = "RegisterFocus",
  89         },
  90         [AUDIO_METHOD_UNREGISTER_FOCUS] = {
  91                 .name = "UnregisterFocus",
  92         },
  93         [AUDIO_METHOD_SET_FOCUS_REACQUISITION] = {
  94                 .name = "SetFocusReacquisition",
  95         },
  96         [AUDIO_METHOD_GET_ACQUIRED_FOCUS_STREAM_TYPE] = {
  97                 .name = "GetAcquiredFocusStreamType",
  98         },
  99         [AUDIO_METHOD_ACQUIRE_FOCUS] = {
 100                 .name = "AcquireFocus",
 101         },
 102         [AUDIO_METHOD_RELEASE_FOCUS] = {
 103                 .name = "ReleaseFocus",
 104         },
 105         [AUDIO_METHOD_WATCH_FOCUS] = {
 106                 .name = "WatchFocus",
 107         },
 108         [AUDIO_METHOD_UNWATCH_FOCUS] = {
 109                 .name = "UnwatchFocus",
 110         },
 111 };
 112
 113 const mm_sound_dbus_signal_info_t g_events[AUDIO_EVENT_MAX] = {
 114         [AUDIO_EVENT_TEST] = {
 115                 .name = "SignalTest1",
 116         },
 117         [AUDIO_EVENT_PLAY_FILE_END] = {
 118                 .name = "PlayFileEnd",
 119         },
 120         [AUDIO_EVENT_VOLUME_CHANGED] = {
 121                 .name = "VolumeChanged",
 122         },
 123         [AUDIO_EVENT_DEVICE_CONNECTED] = {
 124                 .name = "DeviceConnected",
 125         },
 126         [AUDIO_EVENT_DEVICE_INFO_CHANGED] = {
 127                 .name = "DeviceInfoChanged",
 128         },
 129         [AUDIO_EVENT_FOCUS_CHANGED] = {
 130                 .name = "FocusChanged",
 131         },
 132         [AUDIO_EVENT_FOCUS_WATCH] = {
 133                 .name = "FocusWatch",
 134         },
 135         [AUDIO_EVENT_EMERGENT_EXIT] = {
 136                 .name = "EmergentExit",
 137         }
 138 };
 139
 140 /* Only For error types which is currently being used in server-side */
 141 static const GDBusErrorEntry mm_sound_error_entries[] =
 142 {
 143         {MM_ERROR_OUT_OF_MEMORY, "org.tizen.multimedia.OutOfMemory"},
 144         {MM_ERROR_OUT_OF_STORAGE, "org.tizen.multimedia.OutOfStorage"},
 145         {MM_ERROR_INVALID_ARGUMENT, "org.tizen.multimedia.InvalidArgument"},
 146         {MM_ERROR_POLICY_INTERNAL, "org.tizen.multimedia.PolicyInternal"},
 147         {MM_ERROR_NOT_SUPPORT_API, "org.tizen.multimedia.NotSupportAPI"},
 148         {MM_ERROR_POLICY_BLOCKED, "org.tizen.multimedia.PolicyBlocked"},
 149         {MM_ERROR_END_OF_FILE, "org.tizen.multimedia.EndOfFile"},
 150         {MM_ERROR_COMMON_OUT_OF_RANGE, "org.tizen.multimedia.common.OutOfRange"},
 151         {MM_ERROR_COMMON_UNKNOWN, "org.tizen.multimedia.common.Unknown"},
 152         {MM_ERROR_COMMON_NO_FREE_SPACE, "org.tizen.multimedia.common.NoFreeSpace"},
 153         {MM_ERROR_SOUND_INTERNAL, "org.tizen.multimedia.audio.Internal"},
 154         {MM_ERROR_SOUND_INVALID_STATE, "org.tizen.multimedia.audio.InvalidState"},
 155         {MM_ERROR_SOUND_NO_FREE_SPACE, "org.tizen.multimedia.audio.NoFreeSpace"},
 156         {MM_ERROR_SOUND_UNSUPPORTED_MEDIA_TYPE, "org.tizen.multimedia.audio.UnsupportedMediaType"},
 157         {MM_ERROR_SOUND_INVALID_POINTER, "org.tizen.multimedia.audio.InvalidPointer"},
 158         {MM_ERROR_SOUND_INVALID_FILE, "org.tizen.multimedia.audio.InvalidFile"},
 159         {MM_ERROR_SOUND_FILE_NOT_FOUND, "org.tizen.multimedia.audio.FileNotFound"},
 160         {MM_ERROR_SOUND_NO_DATA, "org.tizen.multimedia.audio.NoData"},
 161         {MM_ERROR_SOUND_INVALID_PATH, "org.tizen.multimedia.audio.InvalidPath"},
 162 };
 163
 164
 165 /******************************************************************************************
 166                 Wrapper Functions of GDbus
 167 ******************************************************************************************/
 168
 169 static int _parse_error_msg(char *full_err_msg, char **err_name, char **err_msg)
 170 {
 171         char *save_p, *domain, *_err_name, *_err_msg;
 172
 173         if (!(domain = strtok_r(full_err_msg, ":", &save_p))) {
 174                 debug_error("get domain failed");
 175                 return -1;
 176         }
 177         if (!(_err_name = strtok_r(NULL, ":", &save_p))) {
 178                 debug_error("get err name failed");
 179                 return -1;
 180         }
 181         if (!(_err_msg = strtok_r(NULL, ":", &save_p))) {
 182                 debug_error("get err msg failed");
 183                 return -1;
 184         }
 185
 186         *err_name = _err_name;
 187         *err_msg = _err_msg;
 188
 189         return 0;
 190 }
 191
 192 static int _convert_error_name(const char *err_name)
 193 {
 194         int i = 0;
 195
 196         for (i = 0; i < G_N_ELEMENTS(mm_sound_error_entries); i++) {
 197                 if (!strcmp(mm_sound_error_entries[i].dbus_error_name, err_name)) {
 198                         return mm_sound_error_entries[i].error_code;
 199                 }
 200         }
 201
 202         return MM_ERROR_COMMON_UNKNOWN;
 203 }
 204
 205 static int _dbus_method_call(GDBusConnection* conn, const char* bus_name, const char* object, const char* intf,
 206                                                         const char* method, GVariant* args, GVariant** result)
 207 {
 208         int ret = MM_ERROR_NONE;
 209         GError *err = NULL;
 210         GVariant* dbus_reply = NULL;
 211
 212         if (!conn || !object || !intf || !method) {
 213                 debug_error("Invalid Argument");
 214                 if (!conn)
 215                         debug_error("conn null");
 216                 if (!object)
 217                         debug_error("object null");
 218                 if (!intf)
 219                         debug_error("intf null");
 220                 if (!method)
 221                         debug_error("method null");
 222                 return MM_ERROR_INVALID_ARGUMENT;
 223         }
 224
 225         debug_log("Dbus call with obj'%s' intf'%s' method'%s'", object, intf, method);
 226
 227         dbus_reply = g_dbus_connection_call_sync(conn, bus_name, object , intf,
 228                              method, args ,
 229                              NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, &err );
 230
 231         if (!dbus_reply) {
 232                 char *err_name = NULL, *err_msg = NULL;
 233                 debug_log("Method Call '%s.%s' Failed, %s", intf, method, err->message);
 234
 235                 if (_parse_error_msg(err->message,  &err_name, &err_msg) < 0) {
 236                         debug_error("failed to parse error message");
 237                         g_error_free(err);
 238                         return MM_ERROR_SOUND_INTERNAL;
 239                 }
 240                 ret = _convert_error_name(err_name);
 241                 g_error_free(err);
 242         }
 243
 244         debug_log("Method Call '%s.%s' Success", intf, method);
 245         *result = dbus_reply;
 246
 247         return ret;
 248 }
 249
 250 #if 0
 251 static int _dbus_set_property(GDBusConnection* conn, const char* bus_name, const char* object, const char* intf,
 252                                                         const char* prop, GVariant* args, GVariant** result)
 253 {
 254         int ret = MM_ERROR_NONE;
 255
 256         if (!conn || !object || !intf || !prop) {
 257                 debug_error("Invalid Argument");
 258                 return MM_ERROR_INVALID_ARGUMENT;
 259         }
 260
 261         debug_log("Dbus set property with obj'%s' intf'%s' prop'%s'", object, intf, prop);
 262
 263         if ((ret = _dbus_method_call(conn, bus_name, object, INTERFACE_DBUS, METHOD_SET,
 264                                                                 g_variant_new("(ssv)", intf, prop, args), result)) != MM_ERROR_NONE) {
 265                 debug_error("Dbus call for set property failed");
 266         }
 267
 268         return ret;
 269 }
 270
 271 static int _dbus_get_property(GDBusConnection *conn, const char* bus_name, const char* object_name,
 272                                                         const char* intf_name, const char* prop, GVariant** result)
 273 {
 274         int ret = MM_ERROR_NONE;
 275
 276         if (!conn || !object_name || !intf_name || !prop) {
 277                 debug_error("Invalid Argument");
 278                 return MM_ERROR_INVALID_ARGUMENT;
 279         }
 280
 281         debug_log("Dbus get property with obj'%s' intf'%s' prop'%s'", object_name, intf_name, prop);
 282
 283         if ((ret = _dbus_method_call(conn,
 284                                        bus_name, object_name, INTERFACE_DBUS, METHOD_GET,
 285                                        g_variant_new("(ss)", intf_name, prop), result)) != MM_ERROR_NONE) {
 286                 debug_error("Dbus call for get property failed");
 287         }
 288
 289         return ret;
 290 }
 291 #endif
 292
 293 static int _dbus_subscribe_signal(GDBusConnection *conn, const char* object_name, const char* intf_name,
 294                                         const char* signal_name, GDBusSignalCallback signal_cb, guint *subscribe_id, void* userdata, GDestroyNotify freefunc)
 295 {
 296         guint subs_id = 0;
 297
 298         if (!conn || !object_name || !intf_name || !signal_name || !signal_cb) {
 299                 debug_error("Invalid Argument");
 300                 return MM_ERROR_INVALID_ARGUMENT;
 301         }
 302
 303         debug_log("Dbus subscirbe signal with Obj'%s' Intf'%s' sig'%s'", object_name, intf_name, signal_name);
 304
 305         subs_id = g_dbus_connection_signal_subscribe(conn, NULL, intf_name, signal_name, object_name, \
 306                          NULL , G_DBUS_SIGNAL_FLAGS_NONE , signal_cb, userdata, NULL );
 307
 308         if (!subs_id) {
 309                 debug_error ("g_dbus_connection_signal_subscribe() failed ");
 310                 return MM_ERROR_SOUND_INTERNAL;
 311         }
 312         if (subscribe_id)
 313                 *subscribe_id = subs_id;
 314
 315         return MM_ERROR_NONE;
 316 }
 317
 318 static void _dbus_unsubscribe_signal(GDBusConnection *conn, guint subs_id)
 319 {
 320         if (!conn || !subs_id) {
 321                 debug_error("Invalid Argument");
 322                 return;
 323         }
 324
 325         g_dbus_connection_signal_unsubscribe(conn, subs_id);
 326 }
 327
 328 static GDBusConnection* _dbus_get_connection(GBusType bustype)
 329 {
 330         static GDBusConnection *conn_system = NULL;
 331         static GDBusConnection *conn_session = NULL;
 332         GError *err = NULL;
 333
 334         if (bustype == G_BUS_TYPE_SYSTEM) {
 335                 if (conn_system) {
 336                         debug_log("Already connected to system bus");
 337                 } else {
 338                         debug_log("Get new connection on system bus");
 339                         if (!(conn_system = g_bus_get_sync(bustype, NULL, &err))) {
 340                                 debug_error ("g_dbus_get_sync() error (%s)", err->message);
 341                                 g_error_free(err);
 342                         }
 343                 }
 344                 return conn_system;
 345         } else if (bustype == G_BUS_TYPE_SESSION) {
 346                 if (conn_session) {
 347                         debug_log("Already connected to session bus");
 348                 } else {
 349                         debug_log("Get new connection on session bus");
 350                         if (!(conn_session = g_bus_get_sync(bustype, NULL, &err))) {
 351                                 debug_error ("g_dbus_get_sync() error (%s)", err->message);
 352                                 g_error_free(err);
 353                         }
 354                 }
 355                 return conn_session;
 356         } else {
 357                 debug_error("Invalid bus type");
 358                 return NULL;
 359         }
 360
 361 }
 362
 363 #if 0
 364 static void _dbus_disconnect(GDBusConnection* conn)
 365 {
 366         debug_fenter ();
 367         g_object_unref(conn);
 368         debug_fleave ();
 369 }
 370 #endif
 371
 372 /******************************************************************************************
 373                 Simple Functions For Communicate with Sound-Server
 374 ******************************************************************************************/
 375
 376 EXPORT_API
 377 int mm_sound_dbus_method_call_to(audio_provider_t provider, audio_method_t method_type, GVariant *args, GVariant **result)
 378 {
 379         int ret = MM_ERROR_NONE;
 380         GDBusConnection *conn = NULL;
 381
 382         if (method_type < 0 || method_type >= AUDIO_METHOD_MAX) {
 383                 debug_error("Invalid method type : %d", method_type);
 384                 return MM_ERROR_INVALID_ARGUMENT;
 385         }
 386         if (provider < 0 || provider >= AUDIO_PROVIDER_MAX) {
 387                 debug_error("Invalid provider : %d", provider);
 388                 return MM_ERROR_INVALID_ARGUMENT;
 389         }
 390
 391         if (!(conn = _dbus_get_connection(G_BUS_TYPE_SYSTEM))) {
 392                 debug_error("Get Dbus Connection Error");
 393                 return MM_ERROR_SOUND_INTERNAL;
 394         }
 395
 396         if((ret = _dbus_method_call(conn, g_paths[provider].bus_name,
 397                                       g_paths[provider].object,
 398                                       g_paths[provider].interface,
 399                                       g_methods[method_type].name,
 400                                       args, result)) != MM_ERROR_NONE) {
 401                 debug_error("Dbus Call on Client Error");
 402         }
 403
 404         return ret;
 405 }
 406
 407 /* This callback only transform signal-callback to dbus non-related form (mm_sound_dbus_callback) */
 408 static void _dbus_signal_callback(GDBusConnection  *connection,
 409                                      const gchar      *sender_name,
 410                                      const gchar      *object_path,
 411                                      const gchar      *interface_name,
 412                                      const gchar      *signal_name,
 413                                      GVariant         *params,
 414                                      gpointer          userdata)
 415 {
 416         struct callback_data *cb_data = (struct callback_data*) userdata;
 417
 418         debug_log("Signal(%s.%s) Received , Let's call Wrapper-Callback", interface_name, signal_name);
 419
 420         if (!strcmp(signal_name, g_events[AUDIO_EVENT_VOLUME_CHANGED].name)) {
 421                 (cb_data->user_cb)(AUDIO_EVENT_VOLUME_CHANGED, params, cb_data->user_data);
 422         } else if (!strcmp(signal_name, g_events[AUDIO_EVENT_DEVICE_CONNECTED].name)) {
 423                 (cb_data->user_cb)(AUDIO_EVENT_DEVICE_CONNECTED, params, cb_data->user_data);
 424         } else if (!strcmp(signal_name, g_events[AUDIO_EVENT_DEVICE_INFO_CHANGED].name)) {
 425                 (cb_data->user_cb)(AUDIO_EVENT_DEVICE_INFO_CHANGED, params, cb_data->user_data);
 426         } else if (!strcmp(signal_name, g_events[AUDIO_EVENT_FOCUS_CHANGED].name)) {
 427                 (cb_data->user_cb)(AUDIO_EVENT_FOCUS_CHANGED, params, cb_data->user_data);
 428         } else if (!strcmp(signal_name, g_events[AUDIO_EVENT_FOCUS_WATCH].name)) {
 429                 (cb_data->user_cb)(AUDIO_EVENT_FOCUS_WATCH, params, cb_data->user_data);
 430         } else if (!strcmp(signal_name, g_events[AUDIO_EVENT_PLAY_FILE_END].name)) {
 431                 (cb_data->user_cb)(AUDIO_EVENT_PLAY_FILE_END, params, cb_data->user_data);
 432         } else if (!strcmp(signal_name, g_events[AUDIO_EVENT_EMERGENT_EXIT].name)) {
 433                 (cb_data->user_cb)(AUDIO_EVENT_EMERGENT_EXIT, params, cb_data->user_data);
 434         }
 435 }
 436
 437 static void callback_data_free_func(gpointer data)
 438 {
 439         struct callback_data *cb_data = (struct callback_data *) data;
 440
 441         if (cb_data->free_func)
 442                 cb_data->free_func(cb_data->user_data);
 443         g_free(cb_data);
 444 }
 445
 446 EXPORT_API
 447 int mm_sound_dbus_signal_subscribe_to(audio_provider_t provider, audio_event_t event, mm_sound_dbus_callback callback, void *userdata, mm_sound_dbus_userdata_free freefunc, unsigned *subs_id)
 448 {
 449         GDBusConnection *conn = NULL;
 450         guint _subs_id = 0;
 451         struct callback_data *cb_data = NULL;
 452
 453         if (!callback) {
 454                 debug_error("Callback is Null");
 455                 return MM_ERROR_INVALID_ARGUMENT;
 456         }
 457
 458         if (event < 0 || event >= AUDIO_EVENT_MAX) {
 459                 debug_error("Wrong event Type : %d", event);
 460                 return MM_ERROR_INVALID_ARGUMENT;
 461         }
 462
 463         if (provider < 0 || provider >= AUDIO_PROVIDER_MAX) {
 464                 debug_error("Invalid provider : %d", provider);
 465                 return MM_ERROR_INVALID_ARGUMENT;
 466         }
 467
 468         if (!(conn = _dbus_get_connection(G_BUS_TYPE_SYSTEM))) {
 469                 debug_error("Get Dbus Connection Error");
 470                 return MM_ERROR_SOUND_INTERNAL;
 471         }
 472
 473         cb_data = (struct callback_data*) g_malloc0(sizeof(struct callback_data));
 474         cb_data->user_cb = callback;
 475         cb_data->user_data = userdata;
 476         cb_data->free_func = freefunc;
 477
 478         if(_dbus_subscribe_signal(conn, g_paths[provider].object, g_paths[provider].interface, g_events[event].name,
 479                                                         _dbus_signal_callback, &_subs_id, cb_data, callback_data_free_func) != MM_ERROR_NONE) {
 480                 debug_error("Dbus Subscribe on Client Error");
 481                 goto fail;
 482         }
 483         if (subs_id)
 484                 *subs_id = (unsigned int)_subs_id;
 485
 486         return MM_ERROR_NONE;
 487
 488 fail:
 489         if (cb_data)
 490                 free(cb_data);
 491         return MM_ERROR_SOUND_INTERNAL;
 492 }
 493
 494 EXPORT_API
 495 int mm_sound_dbus_signal_unsubscribe(unsigned int subs_id)
 496 {
 497         GDBusConnection *conn = NULL;
 498
 499         if (!(conn = _dbus_get_connection(G_BUS_TYPE_SYSTEM))) {
 500                 debug_error("Get Dbus Connection Error");
 501                 return MM_ERROR_SOUND_INTERNAL;
 502         }
 503
 504         _dbus_unsubscribe_signal(conn, (guint) subs_id);
 505
 506         return MM_ERROR_NONE;
 507 }
 508
 509 EXPORT_API
 510 int mm_sound_dbus_emit_signal(audio_provider_t provider, audio_event_t event, GVariant *param)
 511 {
 512         GDBusConnection *conn;
 513         GError *err = NULL;
 514         gboolean dbus_ret;
 515         int ret = MM_ERROR_NONE;
 516
 517         if (event < 0 || event >= AUDIO_EVENT_MAX) {
 518                 debug_error ("emit signal failed, invalid argument, event_type(%d)", event);
 519                 return MM_ERROR_INVALID_ARGUMENT;
 520         }
 521
 522         if (!(conn = _dbus_get_connection(G_BUS_TYPE_SYSTEM))) {
 523                 debug_error("Get Dbus Connection Error");
 524                 ret = MM_ERROR_SOUND_INTERNAL;
 525                 goto end;
 526         }
 527
 528         dbus_ret = g_dbus_connection_emit_signal (conn,
 529                                                   NULL, g_paths[provider].object,
 530                                                   g_paths[provider].interface, g_events[event].name,
 531                                                   param, &err);
 532         if (!dbus_ret) {
 533                 debug_error ("g_dbus_connection_emit_signal() error (%s)", err->message);
 534                 ret = MM_ERROR_SOUND_INTERNAL;
 535         }
 536
 537 end:
 538         debug_msg ("emit signal for [%s]  %s", g_events[event].name, (ret == MM_ERROR_NONE ? "success" : "failed") );
 539         return ret;
 540 }
 541