ezradio_receive_plugin.c

Go to the documentation of this file.

/***************************************************************************/
#include <stddef.h>
#include "em_device.h"

#include "ezradio_cmd.h"
#include "ezradio_prop.h"
#include "ezradio_api_lib.h"
#include "ezradio_api_lib_add.h"
#include "ezradio_plugin_manager.h"
#include "ezradio_receive_plugin.h"

#if defined(EZRADIO_PLUGIN_RECEIVE)


#if defined( EZRADIO_PLUGIN_AUTO_ACK) && defined(EZRADIO_PLUGIN_TRANSMIT)
Ecode_t ezradioTransmitAutoAck(EZRADIODRV_Handle_t radioHandle);
#endif


/**************************************************************************/
Ecode_t ezradioStartRx(EZRADIODRV_Handle_t radioHandle)
{
  /* Start Receiving packet, channel 0, START immediately, Packet n bytes long */
    ezradio_start_rx(radioHandle->packetRx.channel, 0u, 0u,
                  EZRADIO_CMD_START_RX_ARG_NEXT_STATE1_RXTIMEOUT_STATE_ENUM_NOCHANGE,
                  EZRADIO_CMD_START_RX_ARG_NEXT_STATE2_RXVALID_STATE_ENUM_READY,
                  EZRADIO_CMD_START_RX_ARG_NEXT_STATE3_RXINVALID_STATE_ENUM_RX );

    return ECODE_EMDRV_EZRADIODRV_OK;
}

//  Note: These are internal routines used by ezradio plugin manager.

/**************************************************************************/
Ecode_t ezradioHandleReceivePlugin( EZRADIODRV_Handle_t radioHandle, EZRADIODRV_ReplyHandle_t radioReplyHandle )
{
  if ( radioHandle == NULL )
  {
    return ECODE_EMDRV_EZRADIODRV_ILLEGAL_HANDLE;
  }

  /* Check if Pkt Rxd IT is received */
  if ( radioReplyHandle->GET_INT_STATUS.PH_PEND & EZRADIO_CMD_GET_INT_STATUS_REP_PH_PEND_PACKET_RX_PEND_BIT)
  {

    ezradio_cmd_reply_t radioReplyLocal;

    /* Check how many bytes we received. */
    ezradio_fifo_info(0u, &radioReplyLocal);

    /* Read out the RX FIFO content. */
    ezradio_read_rx_fifo(radioReplyLocal.FIFO_INFO.RX_FIFO_COUNT, radioHandle->packetRx.pktBuf);

    if ( radioHandle->packetRx.userCallback != NULL )
    {
      radioHandle->packetRx.userCallback( radioHandle, ECODE_EMDRV_EZRADIODRV_OK );
    }

    /* Note: Workaround for some FIFO issue. */
    ezradio_fifo_info(EZRADIO_CMD_FIFO_INFO_ARG_FIFO_RX_BIT, NULL);
    ezradioStartRx( radioHandle );

#if defined(EZRADIO_PLUGIN_AUTO_ACK) && defined(EZRADIO_PLUGIN_TRANSMIT)
    /* Transmit auto acknowledge packet if enabled */
    if (radioHandle->autoAck.ackMode  == ezradiodrvAutoAckSkipOne)
    {
      radioHandle->autoAck.ackMode  = ezradiodrvAutoAckImmediate;
    }
    else if (radioHandle->autoAck.ackMode  == ezradiodrvAutoAckImmediate)
    {
      ezradioTransmitAutoAck(radioHandle);
    }
#endif

    return ECODE_EMDRV_EZRADIODRV_OK;
  }

  /* Reset FIFO */
  ezradio_fifo_info(EZRADIO_CMD_FIFO_INFO_ARG_FIFO_RX_BIT, NULL);

  return ECODE_EMDRV_EZRADIODRV_OK;
}


#endif //#if defined( EZRADIO_PLUGIN_RECEIVE )