reapplied NAK fix

ArcAudio · Mar 31, 2020 · d4336c8 · d4336c8
1 parent 380331e
commit d4336c8
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/Magus/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hcd.c b/Magus/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_hcd.c
@@ -563,6 +563,12 @@ void HAL_HCD_IRQHandler(HCD_HandleTypeDef *hhcd)
       HAL_HCD_SOF_Callback(hhcd);
 #endif /* USE_HAL_HCD_REGISTER_CALLBACKS */
 
+      // Added hack to re-enable the NAK interrupt because leaving it off is bad
+      for (i = 0U; i < hhcd->Init.Host_channels; i++)
+      {
+       USBx_HC(i)->HCINTMSK |= USB_OTG_HCINT_NAK;
+      }
+
       __HAL_HCD_CLEAR_FLAG(hhcd, USB_OTG_GINTSTS_SOF);
     }
 
@@ -1342,6 +1348,8 @@ static void HCD_HC_IN_IRQHandler(HCD_HandleTypeDef *hhcd, uint8_t chnum)
       /* ... */
     }
     __HAL_HCD_CLEAR_HC_INT(ch_num, USB_OTG_HCINT_NAK);
+    // Added hack to disable the NAK interrupt completely (it'll be re-enabled in SOF)
+    USBx_HC(chnum)->HCINTMSK &= ~USB_OTG_HCINT_NAK;
   }
   else
   {