RFLPC_IRQ_HANDLER _eth_irq_handler()
{
rfEthDescriptor *d;
rfEthRxStatus *s;
int i = 0;
if (rflpc_eth_irq_get_status() & RFLPC_ETH_IRQ_EN_RX_DONE) /* packet received */
{
/* Process all pending packets, but limit to the number of descriptor
* to avoid beeing stuck in handler because of packet flood */
while (rflpc_eth_get_current_rx_packet_descriptor(&d, &s) && i++ < TX_DESCRIPTORS)
{
if (mbed_process_input(d->packet, rflpc_eth_get_packet_size(s->status_info)) == ETH_INPUT_FREE_PACKET)
rflpc_eth_done_process_rx_packet();
else
break;
}
}
if (rflpc_eth_irq_get_status() & RFLPC_ETH_IRQ_EN_TX_DONE)
mbed_eth_garbage_tx_buffers();
rflpc_eth_irq_clear(rflpc_eth_irq_get_status());
}
int16_t mbed_eth_get_byte()
{
uint8_t byte;
if (current_rx_frame == NULL)
{
MBED_DEBUG("SMEWS Required a byte but none available!\r\n");
return -1;
}
byte = current_rx_frame[current_rx_frame_idx++];
++byte_count;
if (current_rx_frame_idx >= current_rx_frame_size)
{
current_rx_frame = NULL;
current_rx_frame_size = 0;
current_rx_frame_idx = 0;
rflpc_eth_done_process_rx_packet();
byte_count = 0;
if (rflpc_eth_rx_available()) /* If packet have been received but not yet handled, force IRQ generation */
rflpc_eth_irq_trigger(RFLPC_ETH_IRQ_EN_RX_DONE);
}
return byte;
}
