src/board.c

   1 /*
   2  * Copyright (c) 2021 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 <stdio.h>
  18 #include <hal/hal-common.h>
  19
  20 #include "hal-board-interface.h"
  21 #include "common.h"
  22
  23 static hal_backend_board_funcs *hal_board_funcs = NULL;
  24 /*
  25 -1 : failed to initialize
  26 0  : not initialized
  27 1  : succeeded to initialize
  28 */
  29 static int hal_initialized = 0;
  30
  31 int hal_device_board_get_backend(void)
  32 {
  33         int ret;
  34
  35         if (hal_board_funcs)
  36                 return 0;
  37
  38         ret = hal_common_get_backend(HAL_MODULE_DEVICE_BOARD, (void **)&hal_board_funcs);
  39         if (ret < 0) {
  40                  _E("Failed to get board backend");
  41                 hal_initialized = -1;
  42                 return -EINVAL;
  43         }
  44
  45         hal_initialized = 1;
  46         return 0;
  47 }
  48
  49 int hal_device_board_put_backend(void)
  50 {
  51         if (!hal_board_funcs)
  52                 return 0;
  53
  54         hal_common_put_backend(HAL_MODULE_DEVICE_BOARD, (void *)hal_board_funcs);
  55         hal_board_funcs = NULL;
  56         hal_initialized = 0;
  57
  58         return 0;
  59 }
  60
  61 int hal_device_board_get_device_serial_number(char *buffer, int len)
  62 {
  63         int ret ;
  64
  65         if (!hal_board_funcs && !hal_initialized) {
  66                 if ((ret = hal_device_board_get_backend()) < 0)
  67                         return ret;
  68         }
  69
  70         if (!hal_board_funcs ||
  71             !hal_board_funcs->get_device_serial_number)
  72                 return -ENODEV;
  73
  74         return hal_board_funcs->get_device_serial_number(buffer, len);
  75 }
  76
  77 int hal_device_board_get_device_revision(int *revision)
  78 {
  79         int ret ;
  80
  81         if (!hal_board_funcs && !hal_initialized) {
  82                 if ((ret = hal_device_board_get_backend()) < 0)
  83                         return ret;
  84         }
  85
  86         if (!hal_board_funcs ||
  87             !hal_board_funcs->get_device_revision)
  88                 return -ENODEV;
  89
  90         return hal_board_funcs->get_device_revision(revision);
  91 }
  92
  93 int hal_device_board_switch_partition(int argc, char *argv[])
  94 {
  95         int ret;
  96
  97         if (!hal_board_funcs && !hal_initialized) {
  98                 if ((ret = hal_device_board_get_backend()) < 0)
  99                         return ret;
 100         }
 101
 102         if (!hal_board_funcs ||
 103             !hal_board_funcs->switch_partition)
 104                 return -ENODEV;
 105
 106         return hal_board_funcs->switch_partition(argc, argv);
 107 }