Adjust fifo reserved size.

hathach · Apr 21, 2024 · 9cafcdd · 9cafcdd
1 parent a64c394
commit 9cafcdd
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/src/portable/synopsys/dwc2/dcd_dwc2.c b/src/portable/synopsys/dwc2/dcd_dwc2.c
@@ -375,9 +375,9 @@ static void bus_reset(uint8_t rhport) {
   // Setup the control endpoint 0
   _allocated_fifo_words_tx = 16;
 
-  // DMA needs extra space for processing
+  // DMA needs extra space for processing, needs size confirmation
   if(dma_supported(rhport)) {
-    _allocated_fifo_words_tx += 2 * ep_count;
+    _allocated_fifo_words_tx += 72;
   }
 
   // Control IN uses FIFO 0 with 64 bytes ( 16 32-bit word )
@@ -777,6 +777,11 @@ void dcd_edpt_close_all(uint8_t rhport) {
   // reset allocated fifo IN
   _allocated_fifo_words_tx = 16;
 
+  // DMA needs extra space for processing, needs size confirmation
+  if(dma_supported(rhport)) {
+    _allocated_fifo_words_tx += 72;
+  }
+
   fifo_flush_tx(dwc2, 0x10); // all tx fifo
   fifo_flush_rx(dwc2);
 }