/******************************************************************************
 *
 *  Copyright (C) 2009-2013 Broadcom Corporation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at:
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 ******************************************************************************/

#include <string.h>
#include "bt_target.h"
#include "bt_utils.h"
#include "gap_int.h"

/*******************************************************************************
 *
 * Function         gap_allocate_cb
 *
 * Description      Look through the GAP Control Blocks for a free one.
 *
 * Returns          Pointer to the control block or NULL if not found
 *
 ******************************************************************************/
tGAP_INFO* gap_allocate_cb(void) {
  tGAP_INFO* p_cb = &gap_cb.blk[0];
  uint8_t x;

  for (x = 0; x < GAP_MAX_BLOCKS; x++, p_cb++) {
    if (!p_cb->in_use) {
      memset(p_cb, 0, sizeof(tGAP_INFO));

      p_cb->in_use = true;
      p_cb->index = x;
      p_cb->p_data = (void*)NULL;
      return (p_cb);
    }
  }

  /* If here, no free control blocks found */
  return (NULL);
}

/*******************************************************************************
 *
 * Function         gap_free_cb
 *
 * Description      Release GAP control block.
 *
 * Returns          Pointer to the control block or NULL if not found
 *
 ******************************************************************************/
void gap_free_cb(tGAP_INFO* p_cb) {
  if (p_cb) {
    p_cb->gap_cback = NULL;
    p_cb->in_use = false;
  }
}

/*******************************************************************************
 *
 * Function         gap_is_service_busy
 *
 * Description      Look through the GAP Control Blocks that are in use
 *                  and check to see if the event waiting for is the command
 *                  requested.
 *
 * Returns          true if already in use
 *                  false if not busy
 *
 ******************************************************************************/
bool gap_is_service_busy(uint16_t request) {
  tGAP_INFO* p_cb = &gap_cb.blk[0];
  uint8_t x;

  for (x = 0; x < GAP_MAX_BLOCKS; x++, p_cb++) {
    if (p_cb->in_use && p_cb->event == request) return (true);
  }

  /* If here, service is not busy */
  return (false);
}

/*******************************************************************************
 *
 * Function         gap_convert_btm_status
 *
 * Description      Converts a BTM error status into a GAP error status
 *
 *
 * Returns          GAP_UNKNOWN_BTM_STATUS is returned if not recognized
 *
 ******************************************************************************/
uint16_t gap_convert_btm_status(tBTM_STATUS btm_status) {
  switch (btm_status) {
    case BTM_SUCCESS:
      return (BT_PASS);

    case BTM_CMD_STARTED:
      return (GAP_CMD_INITIATED);

    case BTM_BUSY:
      return (GAP_ERR_BUSY);

    case BTM_MODE_UNSUPPORTED:
    case BTM_ILLEGAL_VALUE:
      return (GAP_ERR_ILL_PARM);

    case BTM_WRONG_MODE:
      return (GAP_DEVICE_NOT_UP);

    case BTM_UNKNOWN_ADDR:
      return (GAP_BAD_BD_ADDR);

    case BTM_DEVICE_TIMEOUT:
      return (GAP_ERR_TIMEOUT);

    default:
      return (GAP_ERR_PROCESSING);
  }
}