bt-api/bt-hid-device.c

   1 /*
   2  * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *              http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17 #include <gio/gio.h>
  18 #include <gio/gunixfdlist.h>
  19 #include <sys/socket.h>
  20
  21 #include "bluetooth-api.h"
  22 #include "bt-internal-types.h"
  23 #include "bluetooth-hid-api.h"
  24 #include "bt-common.h"
  25 #include "bt-request-sender.h"
  26 #include "bt-event-handler.h"
  27
  28 #define HID_UUID                "00001124-0000-1000-8000-00805f9b34fb"
  29 #define HID_DEVICE_UUID "00001124-0000-1000-8000-00805f9b43bf"
  30 #define REPORTID_MOUSE  1
  31 #define BT_HID_BUFFER_LEN 100
  32
  33 /* HIDP header masks */
  34 #define BT_HID_HEADER_TRANS_MASK                        0xf0
  35 #define BT_HID_HEADER_PARAM_MASK                        0x0f
  36
  37 /* HIDP transaction types */
  38 #define BT_HID_TRANS_HANDSHAKE                  0x00
  39 #define BT_HID_TRANS_HID_CONTROL                        0x10
  40 #define BT_HID_TRANS_GET_REPORT                 0x40
  41 #define BT_HID_TRANS_SET_REPORT                 0x50
  42 #define BT_HID_TRANS_GET_PROTOCOL                       0x60
  43 #define BT_HID_TRANS_SET_PROTOCOL                       0x70
  44 #define BT_HID_TRANS_GET_IDLE                   0x80
  45 #define BT_HID_TRANS_SET_IDLE                   0x90
  46 #define BT_HID_TRANS_DATA                               0xa0
  47 #define BT_HID_TRANS_DATC                               0xb0
  48
  49 #define BT_HID_DATA_RTYPE_INPUT                 0x01
  50 #define BT_HID_DATA_RTYPE_OUTPUT                        0x02
  51
  52 #define BT_HID_HSHK_SUCCESSFUL  0x00
  53 #define BT_HID_HSHK_NOT_READY   0x01
  54 #define BT_HID_HSHK_ERR_INVALID_REPORT_ID       0x02
  55 #define BT_HID_HSHK_ERR_UNSUPPORTED_REQUEST     0x03
  56 #define BT_HID_HSHK_ERR_INVALID_PARAMETER       0x04
  57 #define BT_HID_HSHK_ERR_UNKNOWN 0x0E
  58 #define BT_HID_HSHK_ERR_FATAL   0x0F
  59
  60 typedef struct {
  61         guint object_id;
  62         gchar *path;
  63         int id;
  64         char *uuid;
  65         GSList *device_list;
  66 } hid_info_t;
  67
  68 typedef struct {
  69         int ctrl_fd;
  70         int intr_fd;
  71         GIOChannel *ctrl_data_io;
  72         GIOChannel *intr_data_io;
  73         guint ctrl_data_id;
  74         guint intr_data_id;
  75         char *address;
  76         guint disconnect_idle_id;
  77 } hid_connected_device_info_t;
  78
  79 struct reports {
  80         guint8 type;
  81         guint8 rep_data[20];
  82 } __attribute__((__packed__));
  83
  84 static hid_info_t *hid_info = NULL;
  85
  86 /* Variable for privilege, only for write API,
  87   before we should reduce time to bt-service dbus calling
  88   -1 : Don't have a permission to access API
  89   0 : Initial value, not yet check
  90   1 : Have a permission to access API
  91 */
  92 static int privilege_token_send_mouse = 0;
  93 static int privilege_token_send_key = 0;
  94 static int privilege_token_reply = 0;
  95
  96 static gboolean __hid_disconnect(hid_connected_device_info_t *info);
  97
  98 int _bt_hid_device_get_fd(const char *address, int *ctrl, int *intr)
  99 {
 100
 101         int ret = BLUETOOTH_ERROR_NONE;
 102         char *adapter_path;
 103         GVariant *result = NULL;
 104         GError *err = NULL;
 105         GDBusConnection *conn;
 106         GDBusProxy *server_proxy;
 107         int index1 = 0;
 108         int index2 = 0;
 109         GUnixFDList *out_fd_list = NULL;
 110         conn = _bt_gdbus_get_system_gconn();
 111         retv_if(conn == NULL, BLUETOOTH_ERROR_INTERNAL);
 112
 113         adapter_path = _bt_get_device_object_path((char *)address);
 114         retv_if(adapter_path == NULL, BLUETOOTH_ERROR_INTERNAL);
 115         BT_INFO_C("Device : %s", adapter_path);
 116         server_proxy = g_dbus_proxy_new_sync(conn, G_DBUS_PROXY_FLAGS_NONE,
 117                         NULL, BT_BLUEZ_NAME,
 118                         adapter_path, "org.bluez.Input1",  NULL, NULL);
 119         g_free(adapter_path);
 120
 121         if (server_proxy == NULL) {
 122                 BT_ERR("Failed to get the network server proxy\n");
 123                 return BLUETOOTH_ERROR_INTERNAL;
 124         }
 125
 126         result = g_dbus_proxy_call_with_unix_fd_list_sync(server_proxy, "GetFD",
 127                                  NULL,
 128                                  G_DBUS_CALL_FLAGS_NONE,
 129                                  -1,
 130                                  NULL,
 131                                  &out_fd_list,
 132                                  NULL,
 133                                  &err);
 134         if (result == NULL) {
 135                 if (err != NULL) {
 136                         g_dbus_error_strip_remote_error(err);
 137                         BT_ERR("INPUT server register Error: %s\n", err->message);
 138                         if (g_strcmp0(err->message, "Already Exists") == 0)
 139                                 ret = BLUETOOTH_ERROR_ALREADY_INITIALIZED;
 140                         else
 141                                 ret = BLUETOOTH_ERROR_INTERNAL;
 142
 143                         g_error_free(err);
 144                 }
 145         } else {
 146                 g_variant_get(result, "(hh)", &index1, &index2);
 147                 int fd1 = g_unix_fd_list_get(out_fd_list, index1, NULL);
 148                 int fd2 = g_unix_fd_list_get(out_fd_list, index2, NULL);
 149
 150                 *ctrl = fd1;
 151                 *intr = fd2;
 152                 g_object_unref(out_fd_list);
 153                 g_variant_unref(result);
 154         }
 155         g_object_unref(server_proxy);
 156         return ret;
 157 }
 158
 159 static hid_connected_device_info_t *__find_hid_info_with_address(const char *remote_addr)
 160 {
 161         GSList *l;
 162
 163         for (l = hid_info->device_list; l != NULL; l = l->next) {
 164                 hid_connected_device_info_t *info = l->data;
 165                 if (g_strcmp0((const char *)info->address, (const char *)remote_addr) == 0)
 166                         return info;
 167         }
 168         return NULL;
 169 }
 170
 171 static void __hid_connected_cb(hid_connected_device_info_t *info,
 172                         int result)
 173 {
 174         bluetooth_hid_request_t conn_info;
 175         bt_event_info_t *event_info = NULL;
 176
 177         event_info = _bt_event_get_cb_data(BT_HID_DEVICE_EVENT);
 178         if (event_info == NULL)
 179                 return;
 180
 181         memset(&conn_info, 0x00, sizeof(bluetooth_hid_request_t));
 182         if (info->intr_fd != -1 && info->ctrl_fd == -1)
 183                 conn_info.socket_fd = info->intr_fd;
 184         else
 185                 conn_info.socket_fd = info->ctrl_fd;
 186         _bt_convert_addr_string_to_type(conn_info.device_addr.addr, info->address);
 187
 188         if (result == BLUETOOTH_ERROR_NONE)
 189                 BT_INFO_C("Connected [HID Device]");
 190
 191         _bt_common_event_cb(BLUETOOTH_HID_DEVICE_CONNECTED,
 192                         result, &conn_info,
 193                         event_info->cb, event_info->user_data);
 194 }
 195
 196 static void __hid_connect_response_cb(GDBusProxy *proxy, GAsyncResult *res,
 197                         gpointer user_data)
 198
 199 {
 200         int result;
 201         GError *error = NULL;
 202         GVariant *ret = NULL;
 203         hid_connected_device_info_t info;
 204         const char *path;
 205
 206         BT_DBG("+");
 207
 208         ret = g_dbus_proxy_call_finish(proxy, res, &error);
 209         if (ret == NULL) {
 210                 g_dbus_error_strip_remote_error(error);
 211                 BT_ERR("Error : %s \n", error->message);
 212
 213                 if (g_strcmp0(error->message, "In Progress") == 0)
 214                         result = BLUETOOTH_ERROR_DEVICE_BUSY;
 215                 else
 216                         result = BLUETOOTH_ERROR_INTERNAL;
 217
 218                 info.ctrl_fd = -1;
 219                 info.intr_fd = -1;
 220
 221                 info.address = g_malloc0(BT_ADDRESS_STRING_SIZE);
 222
 223                 path = g_dbus_proxy_get_object_path(proxy);
 224                 _bt_convert_device_path_to_address(path, info.address);
 225
 226                 __hid_connected_cb(&info, result);
 227
 228                 g_free(info.address);
 229
 230                 g_error_free(error);
 231         } else {
 232                 g_variant_unref(ret);
 233         }
 234
 235         if (proxy)
 236                 g_object_unref(proxy);
 237
 238         BT_DBG("-");
 239 }
 240
 241 static gboolean __hid_disconnect(hid_connected_device_info_t *info)
 242 {
 243         bluetooth_hid_request_t disconn_info;
 244         int fd = info->ctrl_fd;
 245         bt_event_info_t *event_info;
 246
 247         BT_INFO_C("Disconnected [HID Device]");
 248         hid_info->device_list = g_slist_remove(hid_info->device_list, info);
 249         if (info->ctrl_data_id > 0) {
 250                 g_source_remove(info->ctrl_data_id);
 251                 info->ctrl_data_id = 0;
 252         }
 253         if (info->intr_data_id > 0) {
 254                 g_source_remove(info->intr_data_id);
 255                 info->intr_data_id = 0;
 256         }
 257
 258         if (info->ctrl_data_io) {
 259                 g_io_channel_shutdown(info->ctrl_data_io, TRUE, NULL);
 260                 g_io_channel_unref(info->ctrl_data_io);
 261                 info->ctrl_data_io = NULL;
 262         }
 263         if (info->intr_data_io) {
 264                 g_io_channel_shutdown(info->intr_data_io, TRUE, NULL);
 265                 g_io_channel_unref(info->intr_data_io);
 266                 info->intr_data_io = NULL;
 267         }
 268         if (info->intr_fd >= 0) {
 269                 close(info->ctrl_fd);
 270                 close(info->intr_fd);
 271                 info->intr_fd = -1;
 272                 info->ctrl_fd = -1;
 273         }
 274         info->disconnect_idle_id = 0;
 275         event_info = _bt_event_get_cb_data(BT_HID_DEVICE_EVENT);
 276         if (event_info == NULL)
 277                 return FALSE;
 278
 279         memset(&disconn_info, 0x00, sizeof(bluetooth_hid_request_t));
 280         disconn_info.socket_fd = fd;
 281         _bt_convert_addr_string_to_type(disconn_info.device_addr.addr , info->address);
 282         _bt_common_event_cb(BLUETOOTH_HID_DEVICE_DISCONNECTED,
 283                         BLUETOOTH_ERROR_NONE, &disconn_info,
 284                         event_info->cb, event_info->user_data);
 285         if (info->address)
 286                 g_free(info->address);
 287         g_free(info);
 288         info = NULL;
 289         BT_DBG("-");
 290         return FALSE;
 291 }
 292
 293 void __free_hid_info(hid_info_t *info)
 294 {
 295         BT_DBG("");
 296
 297         _bt_unregister_gdbus(info->object_id);
 298
 299         while (info->device_list) {
 300                 hid_connected_device_info_t *dev_info = NULL;
 301                 dev_info = (hid_connected_device_info_t *)info->device_list->data;
 302
 303                 if (dev_info->disconnect_idle_id > 0) {
 304                         BT_INFO("Disconnect idle still not process remove source");
 305                         g_source_remove(dev_info->disconnect_idle_id);
 306                         dev_info->disconnect_idle_id = 0;
 307                 }
 308                 __hid_disconnect(dev_info);
 309         }
 310
 311         g_free(info->path);
 312         g_free(info->uuid);
 313         g_free(info);
 314 }
 315
 316 static gboolean __is_error_by_disconnect(GError *err)
 317 {
 318         return !g_strcmp0(err->message, "Connection reset by peer") ||
 319                         !g_strcmp0(err->message, "Connection timed out") ||
 320                         !g_strcmp0(err->message, "Software caused connection abort");
 321 }
 322
 323 static gboolean __received_cb(GIOChannel *chan, GIOCondition cond,
 324                                                                 gpointer data)
 325 {
 326         hid_connected_device_info_t *info = data;
 327         GIOStatus status = G_IO_STATUS_NORMAL;
 328         char buffer[20];
 329         gsize len = 0;
 330         GError *err = NULL;
 331         guint8  header, type, param;
 332         bt_event_info_t *event_info;
 333         retv_if(info == NULL, FALSE);
 334
 335         if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR)) {
 336                 BT_ERR_C("HID  disconnected: %d", info->ctrl_fd);
 337                         if (info->disconnect_idle_id > 0) {
 338                                 BT_INFO("Disconnect idle still not process remove source");
 339                                 g_source_remove(info->disconnect_idle_id);
 340                                 info->disconnect_idle_id = 0;
 341                         }
 342                 __hid_disconnect(info);
 343                 return FALSE;
 344         }
 345
 346         status = g_io_channel_read_chars(chan, buffer, BT_RFCOMM_BUFFER_LEN,
 347                         &len, &err);
 348         if (status == G_IO_STATUS_NORMAL) {
 349                 BT_INFO("Parsing Data");
 350                 bluetooth_hid_received_data_t data = {0};
 351                 header = buffer[0];
 352                 type = header & BT_HID_HEADER_TRANS_MASK;
 353                 param = header & BT_HID_HEADER_PARAM_MASK;
 354                 BT_INFO("type %d , param %d", type, param);
 355                 BT_INFO("Data Reveived from %s" , info->address);
 356
 357                 event_info = _bt_event_get_cb_data(BT_HID_DEVICE_EVENT);
 358                 if (event_info == NULL)
 359                         return FALSE;
 360
 361                 data.address = g_strdup(info->address);
 362                 switch (type) {
 363                 case BT_HID_TRANS_HANDSHAKE:
 364                         BT_INFO("TRANS HANDSHAKE");
 365                         data.type = HTYPE_TRANS_HANDSHAKE;
 366                         data.buffer_size = len;
 367                         data.buffer = (char *) malloc(sizeof(char) * len);
 368                         if (data.buffer)
 369                                 memcpy(data.buffer, buffer, len);
 370                 break;
 371
 372                 case BT_HID_TRANS_HID_CONTROL:
 373                         BT_INFO("HID CONTROL");
 374                         data.type = HTYPE_TRANS_HID_CONTROL;
 375                         data.buffer_size = len;
 376                         data.buffer = (char *) malloc(sizeof(char) * len);
 377                         if (data.buffer)
 378                                 memcpy(data.buffer, buffer, len);
 379                 break;
 380
 381                 case BT_HID_TRANS_DATA:
 382                         BT_INFO("TRANS DATA");
 383                         data.type = HTYPE_TRANS_DATA;
 384                         if (param & BT_HID_DATA_RTYPE_INPUT) {
 385                                 BT_INFO("Input Report");
 386                                 data.param = PTYPE_DATA_RTYPE_INPUT;
 387                                 data.buffer_size = len;
 388                                 data.buffer = (char *) malloc(sizeof(char) * len);
 389                                 if (data.buffer)
 390                                         memcpy(data.buffer, buffer, len);
 391                         } else {
 392                                 BT_INFO("Out Report");
 393                                 data.param = PTYPE_DATA_RTYPE_OUTPUT;
 394                                 data.buffer_size = len;
 395                                 data.buffer = (char *) malloc(sizeof(char) * len);
 396                                 if (data.buffer)
 397                                         memcpy(data.buffer, buffer, len);
 398                         }
 399                 break;
 400
 401                 case BT_HID_TRANS_GET_REPORT: {
 402                         BT_INFO("Get Report");
 403                         data.type = HTYPE_TRANS_GET_REPORT;
 404                         if (param & BT_HID_DATA_RTYPE_INPUT) {
 405                                 BT_INFO("Input Report");
 406                                 data.param = PTYPE_DATA_RTYPE_INPUT;
 407                         } else {
 408                                 BT_INFO("Output Report");
 409                                 data.param = PTYPE_DATA_RTYPE_OUTPUT;
 410                         }
 411                         data.buffer_size = len;
 412                         data.buffer = (char *) malloc(sizeof(char) * len);
 413                         if (data.buffer)
 414                                 memcpy(data.buffer, buffer, len);
 415                         break;
 416                 }
 417
 418                 case BT_HID_TRANS_SET_REPORT: {
 419                         BT_INFO("Set Report");
 420                         data.type = HTYPE_TRANS_SET_REPORT;
 421                         if (param & BT_HID_DATA_RTYPE_INPUT) {
 422                                 BT_INFO("Input Report");
 423                                 data.param = PTYPE_DATA_RTYPE_INPUT;
 424                         } else {
 425                                 BT_INFO("Output Report");
 426                                 data.param = PTYPE_DATA_RTYPE_OUTPUT;
 427                         }
 428                         data.buffer_size = len;
 429                         data.buffer = (char *) malloc(sizeof(char) * len);
 430                         if (data.buffer)
 431                                 memcpy(data.buffer, buffer, len);
 432                         break;
 433                 }
 434
 435                 case BT_HID_TRANS_GET_PROTOCOL:{
 436                         BT_INFO("Get_PROTOCOL");
 437                         data.type = HTYPE_TRANS_GET_PROTOCOL;
 438                         data.param = PTYPE_DATA_RTYPE_INPUT;
 439                         data.buffer_size = len;
 440                         data.buffer = (char *) malloc(sizeof(char) * len);
 441                         if (data.buffer)
 442                                 memcpy(data.buffer, buffer, len);
 443                         break;
 444                 }
 445
 446                 case BT_HID_TRANS_SET_PROTOCOL:{
 447                         BT_INFO("Set_PROTOCOL");
 448                         data.type = HTYPE_TRANS_SET_PROTOCOL;
 449                         data.param = PTYPE_DATA_RTYPE_INPUT;
 450                         data.buffer_size = len;
 451                         data.buffer = (char *) malloc(sizeof(char) * len);
 452                         if (data.buffer)
 453                                 memcpy(data.buffer, buffer, len);
 454                         break;
 455                 }
 456
 457                 default: {
 458                         BT_INFO("unsupported HIDP control message");
 459                         BT_ERR("Send Handshake Message");
 460                         guint8 type = BT_HID_TRANS_HANDSHAKE |
 461                                 BT_HID_HSHK_ERR_UNSUPPORTED_REQUEST;
 462                         data.type = HTYPE_TRANS_UNKNOWN;
 463                         int fd = g_io_channel_unix_get_fd(chan);
 464                         int bytes = write(fd,  &type, sizeof(type));
 465                         BT_INFO("Bytes Written %d", bytes);
 466                         break;
 467                 }
 468         }
 469
 470         _bt_common_event_cb(BLUETOOTH_HID_DEVICE_DATA_RECEIVED,
 471                                 BLUETOOTH_ERROR_NONE, &data,
 472                                 event_info->cb, event_info->user_data);
 473         if (data.buffer)
 474                 g_free(data.buffer);
 475
 476         if (data.address)
 477                 g_free((char *)data.address);
 478         } else {
 479                 BT_ERR("Error while reading data %d [%s]", status, info->address);
 480                 if (err) {
 481                         BT_ERR("IO Channel read error [%s]", err->message);
 482                         if (status == G_IO_STATUS_ERROR &&
 483                                         __is_error_by_disconnect(err)) {
 484                                 BT_DBG("cond : %d", cond);
 485                                 g_error_free(err);
 486                                 __hid_disconnect(info);
 487                                 return FALSE;
 488                         }
 489                         g_error_free(err);
 490                 } else if (status == G_IO_STATUS_EOF) {
 491                         __hid_disconnect(info);
 492                         return FALSE;
 493                 }
 494         }
 495         return TRUE;
 496 }
 497
 498 int new_hid_connection(const char *path, int fd, bluetooth_device_address_t *addr)
 499 {
 500         hid_info_t *info = NULL;
 501         hid_connected_device_info_t *dev_info = NULL;
 502         char address[18];
 503         info = hid_info;
 504
 505         if (info == NULL)
 506                 return -1;
 507         _bt_convert_addr_type_to_string((char *)address, addr->addr);
 508         BT_INFO("Address [%s]", address);
 509         dev_info = __find_hid_info_with_address(address);
 510         if (dev_info == NULL) {
 511                 dev_info = (hid_connected_device_info_t *)
 512                         g_malloc0(sizeof(hid_connected_device_info_t));
 513                 if (dev_info == NULL) {
 514                         BT_ERR("Fail to allocation memory");
 515                         return -1;
 516                 }
 517
 518                 dev_info->intr_fd = -1;
 519                 dev_info->ctrl_fd = -1;
 520                 dev_info->intr_fd = fd;
 521                 dev_info->address = g_strdup(address);
 522                 dev_info->intr_data_io = g_io_channel_unix_new(dev_info->intr_fd);
 523                 g_io_channel_set_encoding(dev_info->intr_data_io, NULL, NULL);
 524                 g_io_channel_set_flags(dev_info->intr_data_io, G_IO_FLAG_NONBLOCK, NULL);
 525                 g_io_channel_set_close_on_unref(dev_info->intr_data_io, TRUE);
 526                 dev_info->intr_data_id = g_io_add_watch(dev_info->intr_data_io,
 527                                 G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
 528                                 __received_cb, dev_info);
 529                 hid_info->device_list = g_slist_append(hid_info->device_list, dev_info);
 530         } else {
 531                 dev_info->ctrl_fd = fd;
 532                 dev_info->ctrl_data_io = g_io_channel_unix_new(dev_info->ctrl_fd);
 533                 g_io_channel_set_encoding(dev_info->ctrl_data_io, NULL, NULL);
 534                 g_io_channel_set_flags(dev_info->ctrl_data_io, G_IO_FLAG_NONBLOCK, NULL);
 535                 g_io_channel_set_close_on_unref(dev_info->ctrl_data_io, TRUE);
 536                 dev_info->ctrl_data_id = g_io_add_watch(dev_info->ctrl_data_io,
 537                                 G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
 538                                 __received_cb, dev_info);
 539         }
 540
 541         if (dev_info->ctrl_fd != -1 && dev_info->intr_fd != -1)
 542                 __hid_connected_cb(dev_info, BLUETOOTH_ERROR_NONE);
 543
 544         return 0;
 545 }
 546 static hid_info_t *__register_method()
 547 {
 548         int object_id;
 549         hid_info_t *info = NULL;
 550         char *path = NULL;
 551         path = g_strdup_printf("/org/socket/server/%d", getpid());
 552
 553         object_id = _bt_register_new_conn(path, new_hid_connection);
 554         if (object_id < 0)
 555                 return NULL;
 556
 557         info = g_new(hid_info_t, 1);
 558         info->object_id = (guint)object_id;
 559         info->path = path;
 560         info->id = 0;
 561         info->device_list = NULL;
 562
 563         return info;
 564 }
 565
 566 void _bluetooth_hid_free_hid_info(void)
 567 {
 568         if (hid_info == NULL) {
 569                 BT_DBG("hid_info is already NULL");
 570                 return;
 571         }
 572
 573         __free_hid_info(hid_info);
 574         hid_info = NULL;
 575 }
 576
 577 BT_EXPORT_API int bluetooth_hid_device_init(hid_cb_func_ptr callback_ptr, void *user_data)
 578 {
 579         int ret;
 580
 581         /* Register HID Device events */
 582         BT_INFO("BT_HID_DEVICE_EVENT");
 583         ret = _bt_register_event(BT_HID_DEVICE_EVENT , (void *)callback_ptr, user_data);
 584
 585         if (ret != BLUETOOTH_ERROR_NONE &&
 586              ret != BLUETOOTH_ERROR_ALREADY_INITIALIZED) {
 587                 BT_ERR("Fail to init the event handler");
 588                 return ret;
 589         }
 590
 591         _bt_set_user_data(BT_HID, (void *)callback_ptr, user_data);
 592
 593         return BLUETOOTH_ERROR_NONE;
 594 }
 595
 596 BT_EXPORT_API int bluetooth_hid_device_deinit(void)
 597 {
 598         int ret;
 599
 600         ret = _bt_unregister_event(BT_HID_DEVICE_EVENT);
 601
 602         if (ret != BLUETOOTH_ERROR_NONE) {
 603                 BT_ERR("Fail to deinit the event handler");
 604                 return ret;
 605         }
 606
 607         _bt_set_user_data(BT_HID, NULL, NULL);
 608
 609         return BLUETOOTH_ERROR_NONE;
 610 }
 611
 612 BT_EXPORT_API int bluetooth_hid_device_activate(void)
 613 {
 614         bt_register_profile_info_t profile_info;
 615         int result = BLUETOOTH_ERROR_NONE;
 616
 617         if (_bt_check_privilege(BT_CHECK_PRIVILEGE, BT_HID_DEVICE_ACTIVATE)
 618                  == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 619                 BT_ERR("Don't have a privilege to use this API");
 620                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 621         }
 622
 623         if (hid_info != NULL)
 624                 return BLUETOOTH_ERROR_IN_PROGRESS;
 625
 626         hid_info = __register_method();
 627         if (hid_info == NULL)
 628                 return BLUETOOTH_ERROR_INTERNAL;
 629
 630         hid_info->uuid = g_strdup(HID_DEVICE_UUID);
 631
 632         profile_info.authentication = TRUE;
 633         profile_info.authorization = TRUE;
 634         profile_info.obj_path = hid_info->path;
 635         profile_info.role = g_strdup("Hid");
 636         profile_info.service = hid_info->uuid;
 637         profile_info.uuid = hid_info->uuid;
 638
 639         BT_INFO("uuid %s", profile_info.uuid);
 640         result = _bt_register_profile(&profile_info, FALSE);
 641
 642         return result;
 643 }
 644
 645 BT_EXPORT_API int bluetooth_hid_device_deactivate(void)
 646 {
 647         if (_bt_check_privilege(BT_CHECK_PRIVILEGE, BT_HID_DEVICE_DEACTIVATE)
 648                  == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 649                 BT_ERR("Don't have a privilege to use this API");
 650                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 651         }
 652
 653         if (hid_info == NULL)
 654                 return BLUETOOTH_ERROR_NOT_IN_OPERATION;
 655
 656         _bt_unregister_profile(hid_info->path);
 657
 658         _bluetooth_hid_free_hid_info();
 659
 660         return BLUETOOTH_ERROR_NONE;
 661 }
 662
 663 BT_EXPORT_API int bluetooth_hid_device_connect(const char *remote_addr)
 664 {
 665         char device_address[BT_ADDRESS_STRING_SIZE] = {0};
 666         hid_connected_device_info_t *info = NULL;
 667         int ret;
 668         BT_DBG("+");
 669         BT_CHECK_PARAMETER(remote_addr, return);
 670
 671         info = __find_hid_info_with_address(remote_addr);
 672         if (info) {
 673                 BT_ERR("Connection Already Exists");
 674                 return BLUETOOTH_ERROR_ALREADY_CONNECT;
 675         }
 676         if (_bt_check_privilege(BT_CHECK_PRIVILEGE, BT_HID_DEVICE_CONNECT)
 677                  == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 678                 BT_ERR("Don't have a privilege to use this API");
 679                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 680         }
 681
 682         memcpy(device_address, remote_addr, BT_ADDRESS_STRING_SIZE);
 683         ret = _bt_connect_profile(device_address, HID_DEVICE_UUID,
 684                                 __hid_connect_response_cb, NULL);
 685
 686         return ret;
 687 }
 688 BT_EXPORT_API int bluetooth_hid_device_disconnect(const char *remote_addr)
 689 {
 690         BT_CHECK_PARAMETER(remote_addr, return);
 691
 692         if (_bt_check_privilege(BT_CHECK_PRIVILEGE, BT_HID_DEVICE_DISCONNECT)
 693                  == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 694                 BT_ERR("Don't have a privilege to use this API");
 695                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 696         }
 697
 698         hid_connected_device_info_t *info = NULL;
 699
 700         info = __find_hid_info_with_address(remote_addr);
 701         if (info == NULL)
 702                 return BLUETOOTH_ERROR_INVALID_PARAM;
 703
 704         _bt_disconnect_profile((char *)remote_addr, HID_DEVICE_UUID, NULL, NULL);
 705
 706         info->disconnect_idle_id = g_idle_add((GSourceFunc)__hid_disconnect, info);
 707
 708         BT_DBG("-");
 709         return BLUETOOTH_ERROR_NONE;
 710 }
 711 BT_EXPORT_API int bluetooth_hid_device_send_mouse_event(const char *remote_addr,
 712                                         hid_send_mouse_event_t send_event)
 713 {
 714         int result;
 715         int written = 0;
 716         hid_connected_device_info_t *info = NULL;
 717
 718         BT_CHECK_PARAMETER(remote_addr, return);
 719
 720         switch (privilege_token_send_mouse) {
 721         case 0:
 722                 result = _bt_check_privilege(BT_CHECK_PRIVILEGE, BT_HID_DEVICE_SEND_MOUSE_EVENT);
 723
 724                 if (result == BLUETOOTH_ERROR_NONE) {
 725                         privilege_token_send_mouse = 1; /* Have a permission */
 726                 } else if (result == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 727                         BT_ERR("Don't have a privilege to use this API");
 728                         privilege_token_send_mouse = -1; /* Don't have a permission */
 729                         return BLUETOOTH_ERROR_PERMISSION_DEINED;
 730                 } else {
 731                         /* Just break - It is not related with permission error */
 732                 }
 733                 break;
 734         case 1:
 735                 /* Already have a privilege */
 736                 break;
 737         case -1:
 738                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 739         default:
 740                 /* Invalid privilge token value */
 741                 return BLUETOOTH_ERROR_INTERNAL;
 742         }
 743         info = __find_hid_info_with_address(remote_addr);
 744         if (info == NULL) {
 745                 BT_ERR("Connection Information not found");
 746                 return BLUETOOTH_ERROR_INVALID_PARAM;
 747         }
 748         int socket_fd;
 749
 750         if (info->intr_fd != -1 && info->ctrl_fd == -1)
 751                 socket_fd = info->intr_fd;
 752         else
 753                 socket_fd = info->ctrl_fd;
 754
 755         written = write(socket_fd, &send_event, sizeof(send_event));
 756
 757         return written;
 758 }
 759
 760 BT_EXPORT_API int bluetooth_hid_device_send_key_event(const char *remote_addr,
 761                                         hid_send_key_event_t send_event)
 762 {
 763         int result;
 764         int written = 0;
 765         hid_connected_device_info_t *info = NULL;
 766
 767         BT_CHECK_PARAMETER(remote_addr, return);
 768
 769         switch (privilege_token_send_key) {
 770         case 0:
 771                 result = _bt_check_privilege(BT_CHECK_PRIVILEGE, BT_HID_DEVICE_SEND_KEY_EVENT);
 772
 773                 if (result == BLUETOOTH_ERROR_NONE) {
 774                         privilege_token_send_key = 1; /* Have a permission */
 775                 } else if (result == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 776                         BT_ERR("Don't have a privilege to use this API");
 777                         privilege_token_send_key = -1; /* Don't have a permission */
 778                         return BLUETOOTH_ERROR_PERMISSION_DEINED;
 779                 } else {
 780                         /* Just break - It is not related with permission error */
 781                 }
 782                 break;
 783         case 1:
 784                 /* Already have a privilege */
 785                 break;
 786         case -1:
 787                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 788         default:
 789                 /* Invalid privilge token value */
 790                 return BLUETOOTH_ERROR_INTERNAL;
 791         }
 792
 793         info = __find_hid_info_with_address(remote_addr);
 794         if (info == NULL) {
 795                 BT_ERR("Connection Information not found");
 796                 return BLUETOOTH_ERROR_INVALID_PARAM;
 797         }
 798
 799         int socket_fd;
 800
 801         if (info->intr_fd != -1 && info->ctrl_fd == -1)
 802                 socket_fd = info->intr_fd;
 803         else
 804                 socket_fd = info->ctrl_fd;
 805
 806         written = write(socket_fd, &send_event, sizeof(send_event));
 807         return written;
 808 }
 809
 810 BT_EXPORT_API int bluetooth_hid_device_send_custom_event(const char *remote_addr,
 811                         unsigned char btcode, unsigned char report_id,
 812                         const char *data, unsigned int data_len)
 813 {
 814         int result;
 815         int written = 0;
 816         int socket_fd;
 817         hid_connected_device_info_t *info = NULL;
 818         char *send_event = NULL;
 819
 820         BT_CHECK_PARAMETER(remote_addr, return);
 821         BT_CHECK_PARAMETER(data, return);
 822
 823         switch (privilege_token_send_key) {
 824         case 0:
 825                 result = _bt_check_privilege(BT_CHECK_PRIVILEGE, BT_HID_DEVICE_SEND_CUSTOM_EVENT);
 826
 827                 if (result == BLUETOOTH_ERROR_NONE) {
 828                         privilege_token_send_key = 1; /* Have a permission */
 829                 } else if (result == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 830                         BT_ERR("Don't have a privilege to use this API");
 831                         privilege_token_send_key = -1; /* Don't have a permission */
 832                         return BLUETOOTH_ERROR_PERMISSION_DEINED;
 833                 } else {
 834                         /* Just break - It is not related with permission error */
 835                 }
 836                 break;
 837         case 1:
 838                 /* Already have a privilege */
 839                 break;
 840         case -1:
 841                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 842         default:
 843                 /* Invalid privilge token value */
 844                 return BLUETOOTH_ERROR_INTERNAL;
 845         }
 846
 847         info = __find_hid_info_with_address(remote_addr);
 848         if (info == NULL) {
 849                 BT_ERR("Connection Information not found");
 850                 return BLUETOOTH_ERROR_INVALID_PARAM;
 851         }
 852
 853         if (info->intr_fd != -1 && info->ctrl_fd == -1)
 854                 socket_fd = info->intr_fd;
 855         else
 856                 socket_fd = info->ctrl_fd;
 857
 858         send_event = (char*)g_malloc0(data_len + 2);
 859         if (send_event == NULL)
 860                 return BLUETOOTH_ERROR_OUT_OF_MEMORY;
 861
 862         send_event[0] = (char)btcode;
 863         send_event[1] = (char)report_id;
 864         memcpy(send_event + 2, data, data_len);
 865
 866         written = write(socket_fd, send_event, data_len + 2);
 867
 868         g_free(send_event);
 869
 870         return written;
 871 }
 872
 873 BT_EXPORT_API int bluetooth_hid_device_reply_to_report(const char *remote_addr,
 874                                 bt_hid_header_type_t htype,
 875                                 bt_hid_param_type_t ptype,
 876                                 const char *data,
 877                                 unsigned int data_len)
 878 {
 879         int result;
 880         struct reports output_report = { 0 };
 881         int bytes = 0;
 882         hid_connected_device_info_t *info = NULL;
 883         info = __find_hid_info_with_address(remote_addr);
 884         if (info == NULL) {
 885                 BT_ERR("Connection Information not found");
 886                 return BLUETOOTH_ERROR_INVALID_PARAM;
 887         }
 888
 889         BT_CHECK_PARAMETER(remote_addr, return);
 890
 891         switch (privilege_token_reply) {
 892         case 0:
 893                 result = _bt_check_privilege(BT_CHECK_PRIVILEGE, BT_HID_DEVICE_SEND_REPLY_TO_REPORT);
 894
 895                 if (result == BLUETOOTH_ERROR_NONE) {
 896                         privilege_token_reply = 1; /* Have a permission */
 897                 } else if (result == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 898                         BT_ERR("Don't have a privilege to use this API");
 899                         privilege_token_reply = -1; /* Don't have a permission */
 900                         return BLUETOOTH_ERROR_PERMISSION_DEINED;
 901                 } else {
 902                         /* Just break - It is not related with permission error */
 903                 }
 904                 break;
 905         case 1:
 906                 /* Already have a privilege */
 907                 break;
 908         case -1:
 909                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 910         default:
 911                 /* Invalid privilge token value */
 912                 return BLUETOOTH_ERROR_INTERNAL;
 913         }
 914
 915         BT_INFO("htype %d ptype %d", htype, ptype);
 916         switch (htype) {
 917         case HTYPE_TRANS_GET_REPORT: {
 918                 switch (ptype) {
 919                 case PTYPE_DATA_RTYPE_INPUT: {
 920                         output_report.type = BT_HID_TRANS_DATA |
 921                                         BT_HID_DATA_RTYPE_INPUT;
 922                         memcpy(output_report.rep_data, data, data_len);
 923                         bytes = write(info->intr_fd, &output_report,
 924                                                 sizeof(output_report));
 925                         BT_DBG("Bytes Written %d", bytes);
 926                         break;
 927                 }
 928                 default:
 929                         BT_INFO("Not Supported");
 930                         break;
 931         }
 932         break;
 933
 934         case HTYPE_TRANS_GET_PROTOCOL: {
 935                 BT_DBG("Replying to Get_PROTOCOL");
 936                 output_report.type = BT_HID_TRANS_DATA | BT_HID_DATA_RTYPE_OUTPUT;
 937                 output_report.rep_data[0] = data[0];
 938                 bytes = write(info->intr_fd, &output_report, 2);
 939                 BT_DBG("Bytes Written %d", bytes);
 940                 break;
 941         }
 942
 943         case HTYPE_TRANS_SET_PROTOCOL: {
 944                 BT_DBG("Reply to Set_Protocol");
 945                 output_report.type = BT_HID_TRANS_DATA | BT_HID_DATA_RTYPE_INPUT;
 946                 memcpy(output_report.rep_data, data, data_len);
 947                 bytes = write(info->ctrl_fd, &output_report,
 948                                 sizeof(output_report));
 949                 BT_DBG("Bytes Written %d", bytes);
 950                 break;
 951         }
 952
 953         case HTYPE_TRANS_HANDSHAKE: {
 954                 BT_DBG("Replying Handshake");
 955                 output_report.type = BT_HID_TRANS_HANDSHAKE | data[0];
 956                 memset(output_report.rep_data, 0, sizeof(output_report.rep_data));
 957                 bytes = write(info->intr_fd,  &output_report.type,
 958                                 sizeof(output_report.type));
 959                 BT_DBG("Bytes Written %d", bytes);
 960                 break;
 961         }
 962         default:
 963                 break;
 964                 }
 965         }
 966         return bytes;
 967 }