/**
* @brief Builds the data frame for transmission
*
* This function builds the data frame for transmission.
* The NWK layer has supplied the parameters.
* The frame_info_t data type is constructed and filled in.
* Also the FCF is constructed based on the parameters passed.
*
* @param msg Pointer to the MCPS-DATA.request parameter
*/
void mcps_data_request(uint8_t *msg)
{
retval_t status = FAILURE;
mcps_data_req_t mdr;
memcpy(&mdr, BMM_BUFFER_POINTER((buffer_t *)msg), sizeof(mcps_data_req_t));
if ((mdr.TxOptions & WPAN_TXOPT_INDIRECT) == 0)
{
/*
* Data Requests for a coordinator using direct transmission are
* accepted in all non-transient states (no polling and no scanning
* is ongoing).
*/
if ((MAC_POLL_IDLE != mac_poll_state) ||
(MAC_SCAN_IDLE != mac_scan_state)
)
{
mac_gen_mcps_data_conf((buffer_t *)msg,
(uint8_t)MAC_CHANNEL_ACCESS_FAILURE,
#ifdef ENABLE_TSTAMP
mdr.msduHandle,
0);
#else
mdr.msduHandle);
#endif /* ENABLE_TSTAMP */
return;
}
}
/*
* @brief Process tal_tx_frame_done_cb status
*
* This function is called, if an ACK is requested in the last transmitted frame.
* According to the frame type that has previously been sent, the
* corresponding actions are taken and the MAC returns to its standard state.
*
* @param tx_status Status of transmission
* @param frame Pointer to the transmitted frame
*/
static void mac_process_tal_tx_status(retval_t tx_status, frame_info_t *frame)
{
switch (frame->msg_type)
{
case MCPS_MESSAGE:
#if (MAC_INDIRECT_DATA_FFD == 1)
if (frame->indirect_in_transit)
{
// Clear indirect in transmit flag
frame->indirect_in_transit = false;
if ((tx_status == MAC_SUCCESS) || (tx_status == TAL_FRAME_PENDING))
{
remove_frame_from_indirect_q(frame);
buffer_t *mcps_buf = frame->buffer_header;
/* Create the MCPS DATA confirmation message */
mac_gen_mcps_data_conf((buffer_t *)mcps_buf,
(uint8_t)tx_status,
#ifdef ENABLE_TSTAMP
frame->msduHandle,
frame->time_stamp);
#else
frame->msduHandle);
#endif /* ENABLE_TSTAMP */
}
}