static void rza1_phy_task(void *arg) {
struct netif *netif = (struct netif*)arg;
s32_t connect_sts = 0; /* 0: disconnect, 1:connect */
s32_t link_sts;
s32_t link_mode_new = NEGO_FAIL;
s32_t link_mode_old = NEGO_FAIL;
while (1) {
link_sts = ethernet_link();
if (link_sts == 1) {
link_mode_new = ethernetext_chk_link_mode();
if (link_mode_new != link_mode_old) {
if (connect_sts == 1) {
tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, (void*) netif, 1);
}
if (link_mode_new != NEGO_FAIL) {
ethernetext_set_link_mode(link_mode_new);
tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_up, (void*) netif, 1);
connect_sts = 1;
}
}
} else {
if (connect_sts != 0) {
tcpip_callback_with_block((tcpip_callback_fn)netif_set_link_down, (void*) netif, 1);
link_mode_new = NEGO_FAIL;
connect_sts = 0;
}
}
link_mode_old = link_mode_new;
osDelay(PHY_TASK_WAIT);
}
}
static NyLPC_TBool start(const struct NyLPC_TEthAddr* i_eth_addr,NyLPC_TiEthernetDevice_onEvent i_handler,void* i_param)
{
int i;
//ISRw割り込み設定
NyLPC_cIsr_setEnetISR(emacIsrHandler);
_event_handler=i_handler;
_event_param=i_param;
/* Set the Ethernet MAC Address registers */
LPC_EMAC->SA0 = (((uint32_t)(i_eth_addr->addr[0])) << 8 ) | i_eth_addr->addr[1];
LPC_EMAC->SA1 = (((uint32_t)(i_eth_addr->addr[2])) << 8 ) | i_eth_addr->addr[3];
LPC_EMAC->SA2 = (((uint32_t)(i_eth_addr->addr[4])) << 8 ) | i_eth_addr->addr[5];
//TXメモリマネージャの準備
NyLPC_cEthernetMM_initialize(ETH_TX_BUF_BASE);
/* Initialize Tx and Rx DMA Descriptors */
prevRxDescriptor();
prevTxDescriptor();
//wait for link up
for(i=0;i<5;i++){
if(ethernet_link()!=0){
break;
}
NyLPC_cThread_sleep(emacWAIT_FOR_LINK_TO_ESTABLISH_MS);
}
//setup Link
ethernet_set_link(-1, 0);
LPC_EMAC->RxFilterCtrl = RFC_UCAST_EN | RFC_MCAST_EN | RFC_BCAST_EN | RFC_PERFECT_EN;
/* Receive Broadcast, Perfect Match Packets */
//Ethernetの割込み開始設定
NyLPC_cIsr_enterCritical();
{
LPC_EMAC->IntEnable = INT_RX_DONE | INT_TX_DONE; /* Enable EMAC interrupts. */
LPC_EMAC->IntClear = 0xFFFF; /* Reset all interrupts */
LPC_EMAC->Command |= (CR_RX_EN | CR_TX_EN); /* Enable receive and transmit mode of MAC Ethernet core */
LPC_EMAC->MAC1 |= MAC1_REC_EN;
NVIC_SetPriority( ENET_IRQn, configEMAC_INTERRUPT_PRIORITY );
NVIC_EnableIRQ( ENET_IRQn );
}
NyLPC_cIsr_exitCritical();
return NyLPC_TBool_TRUE;
}
int ethernet_send() {
#if NEW_LOGIC
if(tx_produce_offset < 0) { // no buffer active
return -1;
}
// ensure there is a link
if(!ethernet_link()) {
return -2;
}
// we have been writing in to a buffer, so finalise it
int size = tx_produce_offset;
int index = LPC_EMAC->TxProduceIndex;
txdesc[index].Ctrl = (tx_produce_offset-1) | (TCTRL_INT | TCTRL_LAST);
// Increment ProduceIndex to allow it to be sent
// We can only do this if the next slot is free
int next = rinc(index, NUM_TX_FRAG);
while(next == LPC_EMAC->TxConsumeIndex) {
for(int i=0; i<1000; i++) { __NOP(); }
}
LPC_EMAC->TxProduceIndex = next;
tx_produce_offset = -1;
return size;
#else
int s = send_size;
txdesc[send_idx].Ctrl = (send_doff-1) | (TCTRL_INT | TCTRL_LAST);
send_idx = rinc(send_idx, NUM_TX_FRAG);
LPC_EMAC->TxProduceIndex = send_idx;
send_doff = 0;
send_idx = -1;
send_size = 0;
return s;
#endif
}