Hi Aarthi,

You asked a question about QNX Neutrino (QNX 6), but this project for QNX 4 (previous version). Please, repost your 
question in right forum.

Respectfully,
Oleg

28 авг. 2014 г., в 10:54:59, Aarthi CR <community-noreply@qnx.com> написала:

> Hi All,
> 
> I am developing SPI driver for i.Mx6 in QNX. I have used interrupt attach to attach the interrupts.
> I get one interrupt intially (i is printed as 1 continously), but i dont receive subsequent interrupts.
> I have used InterruptAttach in the following way.Please let me know if I am using it right.
> 
> volatile int n_interrupt = 0;
> int main(int argc, char *argv[])
> {
>     //Initializations
>    if(SPIConfigure( &dev, config.phas, config.pol, config.cs - 1 ))
>    {
>           printf("Configuration failed!\r\n");
>           exit(1);
>    }
>    while(1)
>    {
>        printf("i - %d\n",GetNoOfInterrupt());
>    }
> 
> }
> 
> uint8_t SPIConfigure(spiHwData_adt *dev, uint8_t phase, uint8_t polarity, uint8_t ss)
> {
> 	//Initialize variables
> 
> 	if (ThreadCtl(_NTO_TCTL_IO, 0) == -1) {
> 		printf("ThreadCtl\r\n");
> 		return (!EOK);
> 	}
> 
> 	//Configure SPI
> 
> 	//Clear Rx FIFO
> 
> 	tmp = InterruptAttach( dev->irq, spi_intr, dev, sizeof(spiHwData_adt), _NTO_INTR_FLAGS_PROCESS);
> 	
> 
> 	if(tmp == -1)
> 	{
> 		if (errno == EAGAIN)
> 		{
> 			printf("Interrupt are in use\r\n");
> 		}else if (errno == EFAULT)
> 		{
> 			printf("A fault occurred when the kernel tried to access the buffers provided.\r\n");
> 		}else if (errno == EINVAL)
> 		{
> 			printf("The value of intr is not a valid interrupt number.\r\n");
> 		}else if (errno == EPERM)
> 		{
> 			printf("The process doesn't have I/O privileges.\r\n");
> 		}
> 	}else
> 	{
> 		printf("Attached IRQ ID = %d\r\n", tmp);
> 	}
> 
> 	//Enable SPI interrupts
> 
> 	return 0;
> }
> 
> 
> static const struct sigevent *spi_intr(void *area, int id)
> {
> 	//Clear Interrupt status
>                  n_interrupt++;
> 	return NULL;
> }
> int GetNoOfInterrupt(void)
> {
>    return n_interrupt;
> }
> 
> Thanks in advance.
> 
> 
> 
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> 
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