bt-oal/bluez_hal/src/bt-hal-hiddevice.c

   1 /*
   2  * bluetooth-frwk
   3  *
   4  * Copyright (c) 2019 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *              http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <stdbool.h>
  21 #include <stddef.h>
  22 #include <string.h>
  23 #include <stdlib.h>
  24 #include <dlog.h>
  25
  26 #include "bt-hal.h"
  27 #include "bt-hal-log.h"
  28 #include "bt-hal-msg.h"
  29 #include "bt-hal-utils.h"
  30
  31 #include "bt-hal-hid-dbus-handler.h"
  32 #include "bt-hal-event-receiver.h"
  33
  34 static const bthd_callbacks_t *bt_hal_hid_device_cbacks;
  35
  36 static bool interface_ready(void)
  37 {
  38         return bt_hal_hid_device_cbacks != NULL;
  39 }
  40
  41 static void __bt_hal_handle_conn_state(void *buf, uint16_t len)
  42 {
  43         struct hal_ev_hiddevice_conn_state *ev = buf;
  44
  45         if (bt_hal_hid_device_cbacks->connection_state_cb)
  46                 bt_hal_hid_device_cbacks->connection_state_cb((bt_bdaddr_t *) ev->bdaddr,
  47                                 ev->state);
  48 }
  49
  50 static void __bt_hal_handle_hid_device_events(int message, void *buf, uint16_t len)
  51 {
  52         DBG("+");
  53
  54         if (!interface_ready())
  55                 return;
  56
  57         switch (message) {
  58         case HAL_EV_HIDDEVICE_CONN_STATE:
  59                 DBG("Event: HAL_EV_HIDDEVICE_CONN_STATE");
  60                 __bt_hal_handle_conn_state(buf, len);
  61                 break;
  62         default:
  63                 DBG("Event Currently not handled!!");
  64                 break;
  65         }
  66
  67         DBG("-");
  68 }
  69
  70 static bt_status_t init(bthd_callbacks_t *callbacks)
  71 {
  72         DBG("");
  73
  74         if (interface_ready())
  75                 return BT_STATUS_DONE;
  76
  77         bt_hal_hid_device_cbacks = callbacks;
  78         DBG("Register HID events callback function");
  79         _bt_hal_register_event_handler_cb(HAL_HIDDEVICE, __bt_hal_handle_hid_device_events);
  80
  81         return BT_STATUS_SUCCESS;
  82 }
  83
  84 static void cleanup(void)
  85 {
  86         DBG("");
  87
  88         if (!interface_ready())
  89                 return;
  90
  91         _bt_hal_unregister_hid_dbus_handler_cb();
  92         _bt_hal_unregister_event_handler_cb(HAL_HIDDEVICE);
  93
  94         bt_hal_hid_device_cbacks = NULL;
  95 }
  96
  97 static bthd_interface_t hiddevice_if = {
  98         .size = sizeof(hiddevice_if),
  99         .init = init,
 100         .cleanup = cleanup
 101 };
 102
 103 bthd_interface_t *bt_get_hiddevice_interface(void)
 104 {
 105         return &hiddevice_if;
 106 }
 107