File content as of revision 3:cb37056dbcc6:

/* mbed Microcontroller Library
 * Copyright (c) 2006-2013 ARM Limited
 *
 * 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 "common/common.h"

#include "app_timer.h"
#include "btle.h"

#include "ble_stack_handler_types.h"
#include "ble_radio_notification.h"
#include "ble_flash.h"
#include "ble_bondmngr.h"
#include "ble_conn_params.h"

#include "btle_gap.h"
#include "btle_advertising.h"
#include "custom/custom_helper.h"

#include "nordic_common.h"
#include "softdevice_handler.h"
#include "pstorage.h"

#include "hw/GapEvents.h"
#include "hw/nRF51822n/nRF51Gap.h"
#include "hw/nRF51822n/nRF51GattServer.h"

static void service_error_callback(uint32_t nrf_error);
void        assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name);
void        app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t * p_file_name);

static error_t bond_manager_init(void);

static void btle_handler(ble_evt_t * p_ble_evt);

/**************************************************************************/
/*!

*/
/**************************************************************************/
static void sys_evt_dispatch(uint32_t sys_evt)
{
  pstorage_sys_event_handler(sys_evt);
}

/**************************************************************************/
/*!
    @brief      Initialises BTLE and the underlying HW/SoftDevice

    @returns
*/
/**************************************************************************/
error_t btle_init(void)
{
  APP_TIMER_INIT(0, 8, 5, false);
  SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_XTAL_20_PPM, false);

  ASSERT_STATUS( softdevice_ble_evt_handler_set(btle_handler) );
  ASSERT_STATUS( softdevice_sys_evt_handler_set(sys_evt_dispatch) );

  bond_manager_init();
  btle_gap_init();

  return ERROR_NONE;
}

/**************************************************************************/
/*!
    @brief

    @param[in]  p_ble_evt
    
    @returns
*/
/**************************************************************************/
static void btle_handler(ble_evt_t * p_ble_evt)
{
  /* Library service handlers */
  ble_bondmngr_on_ble_evt(p_ble_evt);
  ble_conn_params_on_ble_evt(p_ble_evt);

  /* Custom event handler */
  static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID;
  switch (p_ble_evt->header.evt_id)
  {
    case BLE_GAP_EVT_CONNECTED:
      m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
      nRF51Gap::getInstance().handleEvent(GapEvents::GAP_EVENT_CONNECTED);
      break;

    case BLE_GAP_EVT_DISCONNECTED:
      // Since we are not in a connection and have not started advertising, store bonds
      ASSERT_STATUS_RET_VOID ( ble_bondmngr_bonded_centrals_store() );
      nRF51Gap::getInstance().handleEvent(GapEvents::GAP_EVENT_DISCONNECTED);
      break;

    case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
      { // TODO parameter depends on security method
        ble_gap_sec_params_t sec_params = { 0 };

        sec_params.timeout      = 30                                ; /**< Timeout for Pairing Request or Security Request (in seconds). */
        sec_params.bond         = 1                                 ; /**< Perform bonding. */
        sec_params.mitm         = CFG_BLE_SEC_PARAM_MITM            ;
        sec_params.io_caps      = CFG_BLE_SEC_PARAM_IO_CAPABILITIES ;
        sec_params.oob          = CFG_BLE_SEC_PARAM_OOB             ;
        sec_params.min_key_size = CFG_BLE_SEC_PARAM_MIN_KEY_SIZE    ;
        sec_params.max_key_size = CFG_BLE_SEC_PARAM_MAX_KEY_SIZE    ;

        ASSERT_STATUS_RET_VOID ( sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_SUCCESS, &sec_params) );
      }
      break;

    case BLE_GAP_EVT_TIMEOUT:
      if (p_ble_evt->evt.gap_evt.params.timeout.src == BLE_GAP_TIMEOUT_SRC_ADVERTISEMENT)
      {
        nRF51Gap::getInstance().handleEvent(GapEvents::GAP_EVENT_TIMEOUT);
      }
      break;

    case BLE_GATTC_EVT_TIMEOUT:
    case BLE_GATTS_EVT_TIMEOUT:
      // Disconnect on GATT Server and Client timeout events.
      // ASSERT_STATUS_RET_VOID (sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION));
      break;

    default: 
      break;
  }
}

/**************************************************************************/
/*!
    @brief      Initialises the bond manager

    @note       Bond data will be cleared on reset if the bond delete
                button is pressed during initialisation (the button is
                defined as CFG_BLE_BOND_DELETE_BUTTON_NUM).

    @returns
*/
/**************************************************************************/
static error_t bond_manager_init(void)
{
  ble_bondmngr_init_t bond_para = { 0 };

  ASSERT_STATUS ( pstorage_init() );

  bond_para.flash_page_num_bond     = CFG_BLE_BOND_FLASH_PAGE_BOND                     ;
  bond_para.flash_page_num_sys_attr = CFG_BLE_BOND_FLASH_PAGE_SYS_ATTR                 ;
  //bond_para.bonds_delete            = boardButtonCheck(CFG_BLE_BOND_DELETE_BUTTON_NUM) ;
  bond_para.evt_handler             = NULL                                             ;
  bond_para.error_handler           = service_error_callback                           ;

  ASSERT_STATUS( ble_bondmngr_init( &bond_para ) );

  /* Init radio active/inactive notification to flash (to only perform flashing when the radio is inactive) */
  //  ASSERT_STATUS( ble_radio_notification_init(NRF_APP_PRIORITY_HIGH,
  //                                             NRF_RADIO_NOTIFICATION_DISTANCE_4560US,
  //                                             ble_flash_on_radio_active_evt) );

  return ERROR_NONE;
}

/**************************************************************************/
/*!
    @brief
    @param[in]  nrf_error
    @returns
*/
/**************************************************************************/
static void service_error_callback(uint32_t nrf_error)
{
  ASSERT_STATUS_RET_VOID( nrf_error );
}

/**************************************************************************/
/*!
    @brief      Callback when an error occurs inside the SoftDevice

    @param[in]  line_num
    @param[in]  p-file_name

    @returns
*/
/**************************************************************************/
void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
  ASSERT(false, (void) 0);
}

/**************************************************************************/
/*!
    @brief      Handler for general errors above the SoftDevice layer.
                Typically we can' recover from this so we do a reset.

    @param[in]  error_code
    @param[in]  line_num
    @param[in]  p-file_name

    @returns
*/
/**************************************************************************/
void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t * p_file_name)
{
  ASSERT_STATUS_RET_VOID( error_code );
  NVIC_SystemReset();
}