/*************************************************************************************************/
/*!
 *  \file   hci_tr.c
 *
 *  \brief  HCI transport module.
 *
 *  Copyright (c) 2011-2018 Arm Ltd.
 *
 *  Copyright (c) 2019 Packetcraft, Inc.
 *
 *  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 "wsf_types.h"
#include "wsf_msg.h"
#include "util/bstream.h"
#include "hci_api.h"
#include "hci_core.h"
#include "hci_tr.h"
#include "ll_api.h"

/*************************************************************************************************/
/*!
 *  \fn     hciTrSendAclData
 *
 *  \brief  Send a complete HCI ACL packet to the transport.
 *
 *  \param  pContext Connection context.
 *  \param  pData    WSF msg buffer containing an ACL packet.
 *
 *  \return None.
 */
/*************************************************************************************************/
void hciTrSendAclData(void *pContext, uint8_t *pData)
{
  uint16_t len;
  uint8_t  *p;

  /* if fragmenting */
  if (hciCoreTxAclDataFragmented(pContext))
  {
    /* get 16-bit length */
    BYTES_TO_UINT16(len, (pData + 2))
    len += HCI_ACL_HDR_LEN;

    /* allocate LL buffer */
    if ((p = WsfMsgDataAlloc(len, HCI_TX_DATA_TAILROOM)) != NULL)
    {
      /* copy data */
      memcpy(p, pData, len);

      /* send to LL  */
      LlSendAclData(p);

      /* free HCI buffer */
      hciCoreTxAclComplete(pContext, pData);
    }
  }
  else
  {
    /* send to LL  */
    LlSendAclData(pData);

    /* LL will free HCI buffer */
    hciCoreTxAclComplete(pContext, NULL);
  }
}