drivers: usb_dc_sam: free endpoint memory on End of Reset event

Free endpoint memory on End of Reset event (EORST). Fixes: zephyrproject-rtos#24626 Signed-off-by: Johann Fischer <j.fischer@phytec.de>
hakehuang · Jun 20, 2020 · 5089457 · 5089457
1 parent 32b9f84
commit 5089457
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/drivers/usb/device/usb_dc_sam.c b/drivers/usb/device/usb_dc_sam.c
@@ -256,6 +256,12 @@ static void usb_dc_isr(void)
 			usb_dc_ep_enable_interrupts(0);
 		}
 
+		/* Free all endpoint memory */
+		for (int idx = 1; idx < NUM_OF_EP_MAX; idx++) {
+			usb_dc_ep_disable(idx);
+			USBHS->USBHS_DEVEPTCFG[idx] &= ~USBHS_DEVEPTCFG_ALLOC;
+		}
+
 		/* Callback function */
 		dev_data.status_cb(USB_DC_RESET, NULL);
 	}