示例#1
0
/**************************************************************************************************
 * @fn          macRadioSetPanCoordinator
 *
 * @brief       Configure the pan coordinator status of the radio
 *
 * @param       panCoordFlag - non-zero to configure radio to be pan coordinator
 *                             zero to configure radio as NON pan coordinator
 *
 * @return      none
 **************************************************************************************************
 */
MAC_INTERNAL_API void macRadioSetPanCoordinator(uint8 panCoordFlag)
{
  /* abstracted radio configuration */
  MAC_RADIO_SET_PAN_COORDINATOR(panCoordFlag);
}
static
#endif /* USE_ICALL */
void macBackoffTimerEventHandler(void)
{
  halIntState_t is;
  uint8 events;
  HAL_ENTER_CRITICAL_SECTION(is);
  events = macBackoffTimerEvents;
  macBackoffTimerEvents = 0;
  HAL_EXIT_CRITICAL_SECTION(is);

  if (events & MAC_BACKOFF_TIMER_EVENT_POWER_WAKEUP)
  {
    // Wakeup radio
    // Turning on radio domain before clock set up seems to cause
    // unexpected interrupt.
    // Hence interrupt shall be disabled here.
    MB_DisableInts();

    // Enable clocks for all radio internal modules.
    // Use Non-Buff access for safety and check for sanity
    HWREG(RFC_PWR_NONBUF_BASE + RFC_PWR_O_PWMCLKEN) = 0x7FF;

    /* Setup mailbox */
    macSetupMailbox();

#ifdef DEBUG_SW_TRACE
    /* re-enable RF trace output for FPGA */
    MB_SendCommand( BUILD_DIRECT_PARAM_EXT_CMD( CMD_ENABLE_DEBUG, 0x1D40 ) ); /* or 0x1940 for less trace */
    DBG_PRINT0(DBGSYS, "RF Trace Resumes...");
#endif /* DEBUG_SW_TRACE */

    /* Start off CM0. Patch it. */
    macSetupRfHal();

    /* Restore states */
    MAC_RADIO_SET_CHANNEL(macPhyChannel);
    MAC_RADIO_SET_PAN_COORDINATOR(macPanCoordinator);
    MAC_RADIO_SET_PAN_ID(pMacPib->panId);
    MAC_RADIO_SET_SHORT_ADDR(pMacPib->shortAddress);
    MAC_RADIO_SET_IEEE_ADDR(pMacPib->extendedAddress.addr.extAddr);

#if !defined( USE_FPGA )
#ifdef USE_ICALL
    // Switch back to HFOSC.
    while (!ICall_pwrIsStableXOSCHF());
    ICall_pwrSwitchXOSCHF();
#endif /* USE_ICALL */
#ifdef OSAL_PORT2TIRTOS
    // Switches back to HFOSC.
    while (!Power_isStableXOSC_HF());
    Power_switchXOSC_HF();
#endif /* OSAL_PORT2TIRTOS */
#endif /* !defined( USE_FPGA ) */

    /* Synchronize RAT timer */
    macSyncStartRAT(macRATValue);

    /* Turn on autoack */
    MAC_RADIO_TURN_ON_AUTO_ACK();

    /* Initialize SRCEXTPENDEN and SRCSHORTPENDEN to zeros */
    MAC_RADIO_SRC_MATCH_INIT_EXTPENDEN();
    MAC_RADIO_SRC_MATCH_INIT_SHORTPENDEN();

    /* Start 15.4 Radio */
    macSetupRadio();

    /* Restore timer comparators */
    MAC_RADIO_BACKOFF_SET_PERIOD(macBackoffTimerRollover);
    MAC_RADIO_BACKOFF_SET_COMPARE(backoffTimerTrigger);

#if 0 /* Following code should be disabled normally */
    /* Code for wakeup lead time calibration */
    {
      static uint32 macBackoffTimerMinMargin = 0xffffffffu;
      uint32 delta = macPrevPeriodRatCount +
        backoffTimerTrigger * MAC_BACKOFF_TO_RAT_RATIO - MAC_RAT_COUNT;
      if (delta < macBackoffTimerMinMargin)
      {
        macBackoffTimerMinMargin = delta;
      }
    }
#endif
  }

  /* Note that MAC_BACKOFF_TIMER_EVENT_POWER_TIMER_EXP handling must always
   * occur after handling of MAC_BACKOFF_TIMER_EVENT_POWER_WAKEUP event
   * because the device might be waking up upon the timer event itself
   * in which case, radio has to be turned on before updating the RAT timer.
   */
  if (events & MAC_BACKOFF_TIMER_EVENT_POWER_TIMER_EXP)
  {
    /* Update wakeup schedule, which most likely would vote not to enter
     * sleep state. */
    HAL_ENTER_CRITICAL_SECTION(is);
    MAC_BACKOFF_TIMER_UPDATE_WAKEUP();
    HAL_EXIT_CRITICAL_SECTION(is);
  }
}