/******************************************************************************
 *
 *  Copyright (C) 2009-2012 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.
 *
 ******************************************************************************/

/******************************************************************************
 *
 *  This is the implementation file for the HeaLth device profile (HL)
 *  subsystem call-out functions.
 *
 ******************************************************************************/

#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/un.h>
#include <time.h>

#include "bta_api.h"
#include "bta_hl_api.h"
#include "bta_hl_ci.h"
#include "bta_hl_co.h"
#include "bta_sys.h"
#include "btif_hl.h"
#include "btif_util.h"
#include "btm_api.h"
#include "osi/include/osi.h"

/*****************************************************************************
 *  Constants and Data Types
 ****************************************************************************/
/**************************
 *  Common Definitions
 **************************/

/*******************************************************************************
 *
 * Function        bta_hl_co_get_num_of_mdep
 *
 * Description     This function is called to get the number of MDEPs for this
 *                 application ID
 *
 * Parameters      app_id - application ID
 *                 p_num_of_mdep (output) - number of MDEP configurations
 *                                          supported by the application
 *
 * Returns         true on success
 *
 ******************************************************************************/
bool bta_hl_co_get_num_of_mdep(uint8_t app_id, uint8_t* p_num_of_mdep) {
  uint8_t app_idx;
  bool success = false;

  if (btif_hl_find_app_idx(app_id, &app_idx)) {
    *p_num_of_mdep = p_btif_hl_cb->acb[app_idx].sup_feature.num_of_mdeps;
    success = true;
  }

  BTIF_TRACE_DEBUG("%s success=%d num_mdeps=%d", __func__, success,
                   *p_num_of_mdep);
  return success;
}

/*******************************************************************************
 *
 * Function        bta_hl_co_advrtise_source_sdp
 *
 * Description     This function is called to find out whether the SOURCE MDEP
 *                 configuration information should be advertise in the SDP or
 *                 not.
 *
 * Parameters      app_id - application ID
 *
 * Returns         true when advertise the SOURCE MDEP configuration
 *                            information
 *
 ******************************************************************************/
bool bta_hl_co_advrtise_source_sdp(uint8_t app_id) {
  bool advertize_source_sdp = false;
  uint8_t app_idx;

  if (btif_hl_find_app_idx(app_id, &app_idx)) {
    advertize_source_sdp =
        p_btif_hl_cb->acb[app_idx].sup_feature.advertize_source_sdp;
  }

  BTIF_TRACE_DEBUG("%s advertize_flag=%d", __func__, advertize_source_sdp);

  return advertize_source_sdp;
}
/*******************************************************************************
 *
 * Function        bta_hl_co_get_mdep_config
 *
 * Description     This function is called to get the supported feature
 *                 configuration for the specified mdep index and it also
 *                 assigns the MDEP ID for the specified mdep index
 *
 * Parameters      app_id - HDP application ID
 *                 mdep_idx - the mdep index
 *                  mdep_counter - number of mdeps
 *                 mdep_id  - the assigned MDEP ID for the specified medp_idx
 *                 p_mdl_cfg (output) - pointer to the MDEP configuration
 *
 *
 * Returns         Bloolean - true success
 ******************************************************************************/
bool bta_hl_co_get_mdep_config(uint8_t app_id, uint8_t mdep_idx,
                               uint8_t mdep_counter, tBTA_HL_MDEP_ID mdep_id,
                               tBTA_HL_MDEP_CFG* p_mdep_cfg) {
  uint8_t idx;
  uint8_t app_idx;
  bool success = false;

  BTIF_TRACE_DEBUG("%s app_id=%d mdep_idx=%d mdep_id=%d mdep_counter=%d",
                   __func__, app_id, mdep_idx, mdep_id, mdep_counter);

  if (btif_hl_find_app_idx(app_id, &app_idx)) {
    idx = mdep_idx - mdep_counter - 1;
    p_btif_hl_cb->acb[app_idx].sup_feature.mdep[idx].mdep_id = mdep_id;
    memcpy(p_mdep_cfg,
           &p_btif_hl_cb->acb[app_idx].sup_feature.mdep[idx].mdep_cfg,
           sizeof(tBTA_HL_MDEP_CFG));

    success = true;
  }

  BTIF_TRACE_DEBUG("%s success=%d mdep_idx=%d mdep_id=%d", __func__, success,
                   mdep_idx, mdep_id);

  return success;
}

/*******************************************************************************
 *
 * Function        bta_hl_co_get_echo_config
 *
 * Description     This function is called to get the echo test
 *                 maximum APDU size configurations
 *
 * Parameters      app_id - HDP application ID
 *                 p_echo_cfg (output) - pointer to the Echo test maximum APDU
 *                                       size configuration
 *
 * Returns         Bloolean - true success
 ******************************************************************************/
bool bta_hl_co_get_echo_config(uint8_t app_id, tBTA_HL_ECHO_CFG* p_echo_cfg) {
  uint8_t app_idx;
  bool success = false;
  btif_hl_app_cb_t* p_acb;
  tBTA_HL_SUP_FEATURE* p_sup;

  BTIF_TRACE_DEBUG("%s app_id=%d", __func__, app_id);

  if (btif_hl_find_app_idx(app_id, &app_idx)) {
    p_acb = BTIF_HL_GET_APP_CB_PTR(app_idx);
    p_sup = &p_acb->sup_feature;
    p_echo_cfg->max_rx_apdu_size = p_sup->echo_cfg.max_rx_apdu_size;
    p_echo_cfg->max_tx_apdu_size = p_sup->echo_cfg.max_tx_apdu_size;
    success = true;
  }

  BTIF_TRACE_DEBUG("%s success=%d max tx_size=%d rx_size=%d", __func__, success,
                   p_echo_cfg->max_tx_apdu_size, p_echo_cfg->max_rx_apdu_size);

  return success;
}

/*******************************************************************************
 *
 * Function        bta_hl_co_save_mdl
 *
 * Description     This function is called to save a MDL configuration item in
 *                 persistent storage
 *
 * Parameters      app_id - HDP application ID
 *                 item_idx - the MDL configuration storage index
 *                 p_mdl_cfg - pointer to the MDL configuration data
 *
 * Returns        void
 *
 ******************************************************************************/
void bta_hl_co_save_mdl(uint8_t mdep_id, uint8_t item_idx,
                        tBTA_HL_MDL_CFG* p_mdl_cfg) {
  BTIF_TRACE_DEBUG("%s mdep_id =%d, item_idx=%d active=%d mdl_id=%d time=%d",
                   __func__, mdep_id, item_idx, p_mdl_cfg->active,
                   p_mdl_cfg->mdl_id, p_mdl_cfg->time);

  btif_hl_save_mdl_cfg(mdep_id, item_idx, p_mdl_cfg);
}

/*******************************************************************************
 *
 * Function        bta_hl_co_delete_mdl
 *
 * Description     This function is called to delete a MDL configuration item in
 *                 persistent storage
 *
 * Parameters      app_id - HDP application ID
 *                 item_idx - the MDL configuration storage index
 *
 * Returns          void
 *
 ******************************************************************************/
void bta_hl_co_delete_mdl(uint8_t mdep_id, uint8_t item_idx) {
  BTIF_TRACE_DEBUG("%s mdep_id=%d, item_idx=%d", __func__, mdep_id, item_idx);

  btif_hl_delete_mdl_cfg(mdep_id, item_idx);
}

/*******************************************************************************
 *
 * Function         bta_hl_co_get_mdl_config
 *
 * Description     This function is called to get the MDL configuration
 *                 from the persistent memory. This function shall only be
 *                 called once after the device is powered up
 *
 * Parameters      app_id - HDP application ID
 *                 buffer_size - the unit of the buffer size is
 *                               sizeof(tBTA_HL_MDL_CFG)
 *                 p_mdl_buf - Point to the starting location of the buffer
 *
 * Returns         bool
 *
 *
 ******************************************************************************/
bool bta_hl_co_load_mdl_config(uint8_t app_id, uint8_t buffer_size,
                               tBTA_HL_MDL_CFG* p_mdl_buf) {
  bool result = true;
  uint8_t i;
  tBTA_HL_MDL_CFG* p;

  BTIF_TRACE_DEBUG("%s app_id=%d, num_items=%d", __func__, app_id, buffer_size);

  if (buffer_size > BTA_HL_NUM_MDL_CFGS) {
    result = false;
    return result;
  }
  result = btif_hl_load_mdl_config(app_id, buffer_size, p_mdl_buf);

  if (result) {
    for (i = 0, p = p_mdl_buf; i < buffer_size; i++, p++) {
      if (p->active) {
        BTIF_TRACE_DEBUG(
            "i=%d mdl_id=0x%x dch_mode=%d local mdep_role=%d mdep_id=%d mtu=%d",
            i, p->mdl_id, p->dch_mode, p->local_mdep_role, p->local_mdep_role,
            p->mtu);
      }
    }
  }

  BTIF_TRACE_DEBUG("%s success=%d num_items=%d", __func__, result, buffer_size);

  return result;
}

/*******************************************************************************
 *
 * Function         bta_hl_co_get_tx_data
 *
 * Description     Get the data to be sent
 *
 * Parameters      app_id - HDP application ID
 *                 mdl_handle - MDL handle
 *                 buf_size - the size of the buffer
 *                 p_buf - the buffer pointer
 *                 evt - the evt to be passed back to the HL in the
 *                       bta_hl_ci_get_tx_data call-in function
 *
 * Returns        Void
 *
 ******************************************************************************/
void bta_hl_co_get_tx_data(uint8_t app_id, tBTA_HL_MDL_HANDLE mdl_handle,
                           uint16_t buf_size, uint8_t* p_buf, uint16_t evt) {
  uint8_t app_idx, mcl_idx, mdl_idx;
  btif_hl_mdl_cb_t* p_dcb;
  tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;

  BTIF_TRACE_DEBUG("%s app_id=%d mdl_handle=0x%x buf_size=%d", __func__, app_id,
                   mdl_handle, buf_size);

  if (btif_hl_find_mdl_idx_using_handle(mdl_handle, &app_idx, &mcl_idx,
                                        &mdl_idx)) {
    p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);

    if ((p_dcb->tx_size <= buf_size) && p_dcb->p_tx_pkt) {
      memcpy(p_buf, p_dcb->p_tx_pkt, p_dcb->tx_size);
      osi_free_and_reset((void**)&p_dcb->p_tx_pkt);
      p_dcb->tx_size = 0;
      status = BTA_HL_STATUS_OK;
    }
  }

  bta_hl_ci_get_tx_data(mdl_handle, status, evt);
}

/*******************************************************************************
 *
 * Function        bta_hl_co_put_rx_data
 *
 * Description     Put the received data
 *
 * Parameters      app_id - HDP application ID
 *                 mdl_handle - MDL handle
 *                 data_size - the size of the data
 *                 p_data - the data pointer
 *                 evt - the evt to be passed back to the HL in the
 *                       bta_hl_ci_put_rx_data call-in function
 *
 * Returns        Void
 *
 ******************************************************************************/
void bta_hl_co_put_rx_data(uint8_t app_id, tBTA_HL_MDL_HANDLE mdl_handle,
                           uint16_t data_size, uint8_t* p_data, uint16_t evt) {
  uint8_t app_idx, mcl_idx, mdl_idx;
  btif_hl_mdl_cb_t* p_dcb;
  tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;
  BTIF_TRACE_DEBUG("%s app_id=%d mdl_handle=0x%x data_size=%d", __func__,
                   app_id, mdl_handle, data_size);

  if (btif_hl_find_mdl_idx_using_handle(mdl_handle, &app_idx, &mcl_idx,
                                        &mdl_idx)) {
    p_dcb = BTIF_HL_GET_MDL_CB_PTR(app_idx, mcl_idx, mdl_idx);

    p_dcb->p_rx_pkt = (uint8_t*)osi_malloc(data_size);
    memcpy(p_dcb->p_rx_pkt, p_data, data_size);
    if (p_dcb->p_scb) {
      BTIF_TRACE_DEBUG("app_idx=%d mcl_idx=0x%x mdl_idx=0x%x data_size=%d",
                       app_idx, mcl_idx, mdl_idx, data_size);
      ssize_t r;
      OSI_NO_INTR(
          r = send(p_dcb->p_scb->socket_id[1], p_dcb->p_rx_pkt, data_size, 0));
      if (r == data_size) {
        BTIF_TRACE_DEBUG("socket send success data_size=%d", data_size);
        status = BTA_HL_STATUS_OK;
      } else {
        BTIF_TRACE_ERROR("socket send failed r=%d data_size=%d", r, data_size);
      }
    }
    osi_free_and_reset((void**)&p_dcb->p_rx_pkt);
  }

  bta_hl_ci_put_rx_data(mdl_handle, status, evt);
}

/*******************************************************************************
 *
 * Function         bta_hl_co_get_tx_data
 *
 * Description     Get the Echo data to be sent
 *
 * Parameters      app_id - HDP application ID
 *                 mcl_handle - MCL handle
 *                 buf_size - the size of the buffer
 *                 p_buf - the buffer pointer
 *                 evt - the evt to be passed back to the HL in the
 *                       bta_hl_ci_get_tx_data call-in function
 *
 * Returns        Void
 *
 ******************************************************************************/
void bta_hl_co_get_echo_data(UNUSED_ATTR uint8_t app_id,
                             tBTA_HL_MCL_HANDLE mcl_handle,
                             UNUSED_ATTR uint16_t buf_size,
                             UNUSED_ATTR uint8_t* p_buf, uint16_t evt) {
  tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;

  BTIF_TRACE_ERROR("%s not supported", __func__);
  bta_hl_ci_get_echo_data(mcl_handle, status, evt);
}

/*******************************************************************************
 *
 * Function        bta_hl_co_put_echo_data
 *
 * Description     Put the received loopback echo data
 *
 * Parameters      app_id - HDP application ID
 *                 mcl_handle - MCL handle
 *                 data_size - the size of the data
 *                 p_data - the data pointer
 *                 evt - the evt to be passed back to the HL in the
 *                       bta_hl_ci_put_echo_data call-in function
 *
 * Returns        Void
 *
 ******************************************************************************/
void bta_hl_co_put_echo_data(UNUSED_ATTR uint8_t app_id,
                             tBTA_HL_MCL_HANDLE mcl_handle,
                             UNUSED_ATTR uint16_t data_size,
                             UNUSED_ATTR uint8_t* p_data, uint16_t evt) {
  tBTA_HL_STATUS status = BTA_HL_STATUS_FAIL;

  BTIF_TRACE_ERROR("%s not supported", __func__);
  bta_hl_ci_put_echo_data(mcl_handle, status, evt);
}