bt-service/services/bt-service-util.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
  18 #include <string.h>
  19 #include <stdio.h>
  20 #include <glib.h>
  21 #include <dlog.h>
  22 #include <gio/gio.h>
  23
  24 #include "bluetooth-api.h"
  25 #include "bt-service-common.h"
  26 #include "bt-service-util.h"
  27
  28 static GSList *req_list = NULL;
  29
  30 /* available request id : 0 ~ 244 */
  31 #define BT_REQUEST_ID_RANGE_MAX 245
  32
  33 static int assigned_id;
  34 static gboolean req_id_used[BT_REQUEST_ID_RANGE_MAX];
  35
  36 void _bt_init_request_id(void)
  37 {
  38         assigned_id = 0;
  39         memset(req_id_used, 0x00, sizeof(req_id_used));
  40 }
  41
  42 int _bt_assign_request_id(void)
  43 {
  44         int index;
  45
  46         index = assigned_id + 1;
  47
  48         if (index >= BT_REQUEST_ID_RANGE_MAX)
  49                 index = 0;
  50
  51         while (req_id_used[index] == TRUE) {
  52                 if (index == assigned_id) {
  53                         /* No available ID */
  54                         BT_ERR("All request ID is used");
  55                         return -1;
  56                 }
  57
  58                 index++;
  59
  60                 if (index >= BT_REQUEST_ID_RANGE_MAX)
  61                         index = 0;
  62         }
  63
  64         assigned_id = index;
  65         req_id_used[index] = TRUE;
  66
  67         return assigned_id;
  68 }
  69
  70 void _bt_delete_request_id(int request_id)
  71 {
  72         ret_if(request_id >= BT_REQUEST_ID_RANGE_MAX);
  73         ret_if(request_id < 0);
  74
  75         req_id_used[request_id] = FALSE;
  76 }
  77
  78 void _bt_init_request_list(void)
  79 {
  80         _bt_clear_request_list();
  81 }
  82
  83 /* insert request next to head */
  84 int _bt_insert_request_list(int req_id, int service_function,
  85                         char *name, GDBusMethodInvocation *context)
  86 {
  87         request_info_t *info;
  88
  89         info = g_malloc0(sizeof(request_info_t));
  90         info->req_id = req_id;
  91         info->service_function = service_function;
  92         info->context = context;
  93
  94         req_list = g_slist_append(req_list, info);
  95
  96         return BLUETOOTH_ERROR_NONE;
  97 }
  98
  99 request_info_t *_bt_get_request_info(int req_id)
 100 {
 101         GSList *l;
 102         request_info_t *info;
 103
 104         for (l = req_list; l != NULL; l = g_slist_next(l)) {
 105                 info = l->data;
 106                 if (info == NULL)
 107                         continue;
 108
 109                 if (info->req_id == req_id)
 110                         return info;
 111         }
 112
 113         return NULL;
 114 }
 115
 116 /* delete request which has the target req_id */
 117 int _bt_delete_request_list(int req_id)
 118 {
 119         GSList *l;
 120         request_info_t *info;
 121
 122         for (l = req_list; l != NULL; l = g_slist_next(l)) {
 123                 info = l->data;
 124                 if (info == NULL)
 125                         continue;
 126
 127                 if (info->req_id == req_id) {
 128                         req_list = g_slist_remove(req_list, info);
 129                         _bt_delete_request_id(info->req_id);
 130                         g_free(info);
 131                         return BLUETOOTH_ERROR_NONE;
 132                 }
 133         }
 134
 135         return BLUETOOTH_ERROR_NOT_FOUND;
 136 }
 137
 138 void _bt_clear_request_list(void)
 139 {
 140         if (req_list) {
 141                 g_slist_foreach(req_list, (GFunc)g_free, NULL);
 142                 g_slist_free(req_list);
 143                 req_list = NULL;
 144         }
 145 }
 146
 147
 148 void _bt_service_convert_uuid_type_to_string(char *str, const unsigned char *uuid)
 149 {
 150         ret_if(str == NULL);
 151         ret_if(uuid == NULL);
 152
 153         g_snprintf(str, BT_UUID_STRING_SIZE,
 154                         "%2.2X%2.2X%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X%2.2X%2.2X%2.2X%2.2X",
 155                         uuid[0], uuid[1], uuid[2], uuid[3], uuid[4], uuid[5], uuid[6], uuid[7],
 156                         uuid[8], uuid[9], uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15]);
 157 }
 158
 159 void _bt_service_convert_uuid_string_to_type(unsigned char *uuid, const char *str)
 160 {
 161         int i = 0;
 162         const char *ptr = str;
 163
 164         ret_if(str == NULL);
 165         ret_if(uuid == NULL);
 166
 167         memcpy(uuid, BT_SERVICE_BASE_UUID, BT_UUID_LENGTH_MAX);
 168
 169         while (*ptr && i < BT_UUID_LENGTH_MAX) {
 170                 if (*ptr == '-') {
 171                         ptr++;
 172                         continue;
 173                 }
 174
 175                 if (sscanf(ptr, "%02hhx", &(uuid[i])) != 1)
 176                         break;
 177
 178                 i++;
 179                 ptr += 2;
 180         }
 181 }
 182
 183 char * _bt_service_convert_hex_to_string(unsigned char *hex, int len)
 184 {
 185         int i = 0;
 186         char *str = NULL;
 187         int str_len = (3 * len) + 1;
 188
 189         retv_if(hex == NULL, NULL);
 190         retv_if(len <= 0, NULL);
 191
 192         str = g_malloc0(str_len * sizeof(char));
 193         for (i = 0; i < len; i++)
 194                 snprintf(str + (i * 3), 3 * (len - i), "%02X ", hex[i]);
 195
 196         str[3 * len] = '\0';
 197
 198         return str;
 199 }
 200