implement dcd connect/disconnect for samd and nrf

1 files changed, 14 insertions, 1 deletions

diff --git a/src/portable/microchip/samd/dcd_samd.c b/src/portable/microchip/samd/dcd_samd.c
index 148995520..c3d2985d4 100644
--- a/src/portable/microchip/samd/dcd_samd.c
+++ b/src/portable/microchip/samd/dcd_samd.c
@@ -154,10 +154,23 @@ void dcd_set_config (uint8_t rhport, uint8_t config_num)
 void dcd_remote_wakeup(uint8_t rhport)
 {
   (void) rhport;
-
   USB->DEVICE.CTRLB.bit.UPRSM = 1;
 }
 
+// disconnect by disabling internal pull-up resistor on D+/D-
+void dcd_disconnect(uint8_t rhport)
+{
+  (void) rhport;
+  USB->DEVICE.CTRLB.reg |= USB_DEVICE_CTRLB_DETACH;
+}
+
+// connect by enabling internal pull-up resistor on D+/D-
+void dcd_connect(uint8_t rhport)
+{
+  (void) rhport;
+   USB->DEVICE.CTRLB.reg &= ~USB_DEVICE_CTRLB_DETACH;
+}
+
 /*------------------------------------------------------------------*/
 /* DCD Endpoint port
  *------------------------------------------------------------------*/