/* __attribute__((__always_inline__)) */
usci_irq (bsp430_FreeRTOS_USCI *port)
{
portBASE_TYPE yield = pdFALSE;
portBASE_TYPE rv = pdFALSE;
uint8_t c;
switch (port->usci->iv) {
default:
case USCI_NONE:
break;
case USCI_UCTXIFG:
rv = xQueueReceiveFromISR(port->tx_queue, &c, &yield);
if (xQueueIsQueueEmptyFromISR(port->tx_queue)) {
signed portBASE_TYPE sema_yield = pdFALSE;
port->usci->ie &= ~UCTXIE;
xSemaphoreGiveFromISR(port->tx_idle_sema, &sema_yield);
yield |= sema_yield;
}
if (rv) {
++port->num_tx;
port->usci->txbuf = c;
}
break;
case USCI_UCRXIFG:
c = port->usci->rxbuf;
++port->num_rx;
rv = xQueueSendToBackFromISR(port->rx_queue, &c, &yield);
break;
}
portYIELD_FROM_ISR(yield);
}
bool sensorcommunication_sensorIntQueueEmptyISR()
{
BaseType_t retval;
retval = xQueueIsQueueEmptyFromISR(sensorcommunicationData.sensorIntQueue);
if(retval == pdTRUE)
return true;
else
return false;
}
wiced_result_t wiced_rtos_is_queue_empty( wiced_queue_t* queue )
{
signed portBASE_TYPE result;
taskENTER_CRITICAL();
result = xQueueIsQueueEmptyFromISR( *queue );
taskEXIT_CRITICAL();
return ( result != 0 ) ? WICED_SUCCESS : WICED_ERROR;
}
/* TODO: Add any necessary local functions.
*/
char isQueueEmpty()
{
if(pdFALSE == xQueueIsQueueEmptyFromISR(msg_taskData.sendMsg_q))
{
return 0;
}
else
{
return 1;
}
}
bool UsbSerial::available() {
return !xQueueIsQueueEmptyFromISR(rx_queue);
}
/** Audio ISR (FIFO)
*
*
* Parameters:
* @param pThisArg Initialized Audio (TX/RX) object
*
* @return None
*/
void audioRxTx_isr(void *pThisArg) {
audioRxTx_t *pThis = (audioRxTx_t*) pThisArg;
chunk_d_t *pChunk = NULL;
unsigned int samplesInChunk;
/* Read FIFO Interrupt Status */
unsigned int intStatus =
*(volatile u32 *) (FIFO_BASE_ADDR + FIFO_INT_STATUS);
/* Tx FIFO programmable empty hit */
if (intStatus & FIFO_INT_TFPE) {
/* clear TFPE interrupt */
*(volatile u32 *) (FIFO_BASE_ADDR + FIFO_INT_STATUS) = FIFO_INT_TFPE;
/* Check if Tx queue is EMPTY
* - set signal that ISR is not running
* - return */
if (xQueueIsQueueEmptyFromISR(pThis->tx_queue) != pdFALSE) {
pThis->running = 0; /* indicate that ISR is no longer running */
return;
}
// Tx Queue is not empty - Receive pointer to the next chunk.
xQueueReceiveFromISR(pThis->tx_queue, &pChunk, NULL);
/* how many samples does the chunk contain ? */
samplesInChunk = pChunk->bytesUsed/sizeof(unsigned int);
// This check might not really be needed - as we have recieved a TPFE trigger from FIFO
if (samplesInChunk > (*(volatile u32 *) (FIFO_BASE_ADDR + FIFO_TX_VAC))) {
printf("audioTx_isr: insufficient space in FIFO\n");
// should anyway never happen
// if TX FIFO Does not have the space promised, just drop the chunk
bufferPool_d_release_from_ISR(pThis->pBuffP, pChunk);
return;
}
/* Transmit the chunk data to the TX FIFO */
u32 samplNr = 0;
for (samplNr = 0; samplNr < samplesInChunk; samplNr++) {
*(volatile u32 *) (FIFO_BASE_ADDR + FIFO_TX_DATA) =
((unsigned int)pChunk->u16_buff[samplNr]) << 16;
*(volatile u32 *) (FIFO_BASE_ADDR + FIFO_TX_LENGTH) = 0x1;
}
/* Return chunk to buffer pool free list */
bufferPool_d_release_from_ISR(pThis->pBuffP, pChunk);
}
/* RX FIFO programmable Full hit */
if (intStatus & FIFO_INT_RFPF) {
/* Clear RFPF interrupt */
*(volatile u32 *) (FIFO_BASE_ADDR + FIFO_INT_STATUS) = FIFO_INT_RFPF;
/* is Queue is full ? */
if ((xQueueIsQueueFullFromISR(pThis->rx_queue)) != pdFALSE) {
printf(
"The RX queue is full, and no more incoming data could be captured\n");
*(volatile u32 *) (FIFO_BASE_ADDR + FIFO_INT_ENABLE) = 0x0;
return;
}
while (bufferPool_d_acquire_ISR(pThis->pBuffP, &pChunk) != 1) {
printf("RX ISR: buffer pool empty\n\n\n\n\n");
*(volatile u32 *) (FIFO_BASE_ADDR + FIFO_INT_ENABLE) = 0x0;
return;
}
// How many samples in FIFO?
samplesInChunk = *(volatile u32 *) (FIFO_BASE_ADDR + FIFO_RX_OCC);
// more samples in FIFO than fitting into chunk? Limit
if(samplesInChunk > pChunk->bytesMax/4){
samplesInChunk = pChunk->bytesMax/4;
}
/* Read the Audio RX samples.*/
u32 samplNr = 0;
for (samplNr = 0; samplNr < samplesInChunk; samplNr++) {
// read from FIFO and right shift by 16 (8 LSBs are 0 anyway, plus we want to use 16 bit only).
// symmetric to tx side.
pChunk->u16_buff[samplNr] = (unsigned short) ((*(volatile u32 *) (FIFO_BASE_ADDR
+ FIFO_RX_DATA)) >> 16);
}
/* indicate max fill level */
pChunk->bytesUsed= samplesInChunk * 4;
xQueueSendFromISR( pThis->rx_queue, &pChunk, NULL);
return;
}