add tuh_edpt_close() API, it will abort any pending transfer

implement hcd_edpt_close() for pio-usb and max3421e, also move max3421e api into its own header.

src/host/hcd.h

@@ -165,6 +165,9 @@ void hcd_device_close(uint8_t rhport, uint8_t dev_addr);
 // Open an endpoint
 bool hcd_edpt_open(uint8_t rhport, uint8_t daddr, tusb_desc_endpoint_t const * ep_desc);
 
+// Close an endpoint
+bool hcd_edpt_close(uint8_t rhport, uint8_t daddr, uint8_t ep_addr);
+
 // Submit a transfer, when complete hcd_event_xfer_complete() must be invoked
 bool hcd_edpt_xfer(uint8_t rhport, uint8_t daddr, uint8_t ep_addr, uint8_t * buffer, uint16_t buflen);
 

src/host/usbh.c

@@ -994,6 +994,12 @@ bool tuh_edpt_open(uint8_t dev_addr, tusb_desc_endpoint_t const* desc_ep) {
   return hcd_edpt_open(usbh_get_rhport(dev_addr), dev_addr, desc_ep);
 }
 
+bool tuh_edpt_close(uint8_t daddr, uint8_t ep_addr) {
+  TU_VERIFY(0 != tu_edpt_number(ep_addr)); // cannot close EP0
+  tuh_edpt_abort_xfer(daddr, ep_addr); // abort any pending transfer
+  return hcd_edpt_close(usbh_get_rhport(daddr), daddr, ep_addr);
+}
+
 bool usbh_edpt_busy(uint8_t dev_addr, uint8_t ep_addr) {
   usbh_device_t* dev = get_device(dev_addr);
   TU_VERIFY(dev);

src/host/usbh.h

@@ -33,6 +33,10 @@
 
 #include "common/tusb_common.h"
 
+#if CFG_TUH_MAX3421
+#include "portable/analog/max3421/hcd_max3421.h"
+#endif
+
 //--------------------------------------------------------------------+
 // MACRO CONSTANT TYPEDEF
 //--------------------------------------------------------------------+
@@ -227,6 +231,9 @@ bool tuh_edpt_xfer(tuh_xfer_t* xfer);
 // Open a non-control endpoint
 bool tuh_edpt_open(uint8_t daddr, tusb_desc_endpoint_t const * desc_ep);
 
+// Close a non-control endpoint, it will abort any pending transfer
+bool tuh_edpt_close(uint8_t daddr, uint8_t ep_addr);
+
 // Abort a queued transfer. Note: it can only abort transfer that has not been started
 // Return true if a queued transfer is aborted, false if there is no transfer to abort
 bool tuh_edpt_abort_xfer(uint8_t daddr, uint8_t ep_addr);