use polling instead of interrupt

but keep interrupts for i2c

Signed-off-by: Niklas Eiling <niklas.eiling@eonerc.rwth-aachen.de>

fpga/etc/fpgas.json

@@ -5,7 +5,7 @@
         "slot": "0000:88:00.0",
         "do_reset": true,
         "ips": "vc707-xbar-pcie-dino/vc707-xbar-pcie-dino-v2.json",
-        "polling": false,
+        "polling": true,
         "interface": "pcie"
       }
     }

fpga/lib/ips/dma.cpp

@@ -719,6 +719,7 @@ void DmaFactory::parse(Core &ip, json_t *cfg) {
 
   auto &dma = dynamic_cast<Dma &>(ip);
 
+  dma.polling = dma.card->polling;
   // Sensible default configuration
   dma.xConfig.HasStsCntrlStrm = 0;
   dma.xConfig.HasMm2S = 1;

fpga/lib/ips/i2c.cpp

@@ -55,7 +55,7 @@ bool I2c::init() {
   XIic_SetStatusHandler(&xIic, this, (XIic_StatusHandler)StatusHandler);
 
   irqs[i2cInterrupt].irqController->enableInterrupt(irqs[i2cInterrupt],
-                                                    polling);
+                                                    0); //polling);
   hwLock.unlock();
   initDone = true;
   return true;