void HCI_Isr(void)
{
tHciDataPacket * hciReadPacket = NULL;
uint8_t data_len,i=0;
uint8_t retries = 0;
while(BlueNRG_DataPresent())
{
if (list_is_empty (&hciReadPktPool) == FALSE){//check if we have free hci read packets
/* enqueueing a packet for read */
list_remove_head (&hciReadPktPool, (tListNode **)&hciReadPacket);
data_len = BlueNRG_SPI_Read_All(hciReadPacket->dataBuff,HCI_READ_PACKET_SIZE);
if(data_len > 0){
retries = 0;
hciReadPacket->data_len = data_len;
if(HCI_verify(hciReadPacket) == 0)
list_insert_tail(&hciReadPktRxQueue, (tListNode *)hciReadPacket);
else
list_insert_head(&hciReadPktPool, (tListNode *)hciReadPacket);
i++;
if( i > HCI_READ_PACKET_NUM_MAX)
{
goto error;
}
}
else
{
// Insert the packet back into the pool.
list_insert_head(&hciReadPktPool, (tListNode *)hciReadPacket);
retries++; //Device was busy or did not respond correctly
if(retries > 10)
{
goto error;
}
}
}
else{
// HCI Read Packet Pool is empty, wait for a free packet.
readPacketListFull = TRUE;
return;
}
}
return;
error:
ISRDevice_busy = TRUE;
return;
}
void HCI_recv_packet(unsigned char* packet_buffer, unsigned int packet_length) {
tHciDataPacket * hciReadPacket = NULL;
if (!list_is_empty ((tListNode*)&hciReadPktPool)){
if(packet_length > 0) {
/* enqueueing a packet for read */
list_remove_head ((tListNode*)&hciReadPktPool, (tListNode **)&hciReadPacket);
Osal_MemCpy(hciReadPacket->dataBuff, packet_buffer, MIN(HCI_READ_PACKET_SIZE, packet_length));
hciReadPacket->data_len = packet_length;
switch(HCI_verify(hciReadPacket)) {
case 0:
list_insert_tail((tListNode*)&hciReadPktRxQueue, (tListNode *)hciReadPacket);
break;
default:
case 1:
case 2:
list_insert_head((tListNode*)&hciReadPktPool, (tListNode *)hciReadPacket);
break;
}
}
}
else{
// HCI Read Packet Pool is empty, wait for a free packet.
readPacketListFull = TRUE;
return;
}
// process incoming packet
// don't process when hci_send_req is undergoing
if (hciAwaitReply) {
return;
}
/* process any pending events read */
while(!list_is_empty((tListNode*)&hciReadPktRxQueue))
{
list_remove_head ((tListNode*)&hciReadPktRxQueue, (tListNode **)&hciReadPacket);
//Enable_SPI_IRQ();
HCI_Event_CB(hciReadPacket->dataBuff);
//Disable_SPI_IRQ();
list_insert_tail((tListNode*)&hciReadPktPool, (tListNode *)hciReadPacket);
}
}
void HCI_Isr(void)
{
tHciDataPacket * hciReadPacket = NULL;
uint8_t data_len;
Clear_SPI_EXTI_Flag();
while(BlueNRG_DataPresent()){
if (list_is_empty (&hciReadPktPool) == FALSE){
/* enqueueing a packet for read */
list_remove_head (&hciReadPktPool, (tListNode **)&hciReadPacket);
data_len = BlueNRG_SPI_Read_All(&SpiHandle, hciReadPacket->dataBuff, HCI_READ_PACKET_SIZE);
if(data_len > 0){
hciReadPacket->data_len = data_len;
if(HCI_verify(hciReadPacket) == 0)
list_insert_tail(&hciReadPktRxQueue, (tListNode *)hciReadPacket);
else
list_insert_head(&hciReadPktPool, (tListNode *)hciReadPacket);
}
else {
// Insert the packet back into the pool.
list_insert_head(&hciReadPktPool, (tListNode *)hciReadPacket);
}
}
else{
// HCI Read Packet Pool is empty, wait for a free packet.
readPacketListFull = TRUE;
Clear_SPI_EXTI_Flag();
return;
}
Clear_SPI_EXTI_Flag();
}
}
