/* GPIO interrupt callback handler. This is received from
* the interrupt context. So DebugPrint API is not available
* from here. Set an event in the event group so that the
* GPIO thread can print the event information. */
void CyFxGpioIntrCb (
uint8_t gpioId /* Indicates the pin that triggered the interrupt */
)
{
CyBool_t gpioValue = CyFalse;
CyU3PReturnStatus_t apiRetStatus = CY_U3P_SUCCESS;
/* Get the status of the pin */
apiRetStatus = CyU3PGpioGetValue (gpioId, &gpioValue);
if (apiRetStatus == CY_U3P_SUCCESS)
{
/* Check status of the pin */
if (gpioValue == CyTrue)
{
/* Set GPIO high event */
CyU3PEventSet(&glFxGpioAppEvent, CY_FX_GPIOAPP_GPIO_HIGH_EVENT,
CYU3P_EVENT_OR);
}
else
{
/* Set GPIO low Event */
CyU3PEventSet(&glFxGpioAppEvent, CY_FX_GPIOAPP_GPIO_LOW_EVENT,
CYU3P_EVENT_OR);
}
}
}
uint16_t uxn1330_read(CyU3PDmaBuffer_t* pBuf) {
memset(pBuf->buffer,0,gRdwrCmd.header.transfer_length);
switch ( gRdwrCmd.header.reg_addr ) {
case UXN1330_VERSION:
{
uint32_t version=VERSION;
CyU3PMemCopy( pBuf->buffer, (uint8_t*)&version, sizeof(version) );
return 0;
}
case UXN1330_LP_B:
case UXN1330_V18_EN:
case UXN1330_VCON_EN:
{
CyBool_t val;
CyU3PReturnStatus_t ret;
ret=CyU3PGpioGetValue( gRdwrCmd.header.reg_addr, &val );
log_debug ( "gpio pin %d val: %d\n", gRdwrCmd.header.reg_addr, val );
if (ret == CY_U3P_SUCCESS) {
pBuf->buffer[0] = val;
pBuf->buffer[1] = 0;
return 0;
} else {
log_error ( "gpio read failed: %d\n", ret );
}
}
break;
case UXN1330_VCON_POT:
{
uint8_t val;
uint16_t ret=rdwr_vcon_pot(&val,CyFalse);
if (ret == CY_U3P_SUCCESS) {
pBuf->buffer[0] = val;
pBuf->buffer[1] = 0;
return 0;
}
return ret;
}
break;
default:
log_info("Unhandled UXN1330 read reg addr: %d\n", gRdwrCmd.header.reg_addr );
}
return 1;
}
int FpgaBeginProgram(void)
{
CyBool_t value;
unsigned tEnd;
CyU3PReturnStatus_t apiRetStatus;
apiRetStatus = CyU3PGpioSetValue(GPIO_nCONFIG, CyFalse);
if (apiRetStatus != CY_U3P_SUCCESS) {
return apiRetStatus;
}
tEnd = CyU3PGetTime() + 10;
while (CyU3PGetTime() < tEnd);
apiRetStatus = CyU3PGpioSetValue(GPIO_nCONFIG, CyTrue);
tEnd = CyU3PGetTime() + 1000;
do {
apiRetStatus = CyU3PGpioGetValue(GPIO_nSTATUS, &value);
if (CyU3PGetTime() > tEnd)
return -1;
} while (!value);
return 0;
}
