stm32/network: Add USB Network support.

Signed-off-by: Andrew Leech <[email protected]>

Author: pi-anl

ports/stm32/mpconfigport.h

@@ -218,6 +218,13 @@ extern const struct _mp_obj_type_t mod_network_nic_type_wiznet5k;
 #define MICROPY_HW_NIC_WIZNET5K
 #endif
 
+#if MICROPY_HW_NETWORK_USBNET
+extern const struct _mp_obj_type_t mod_network_nic_type_usbnet;
+#define MICROPY_HW_NIC_USBNET               { MP_ROM_QSTR(MP_QSTR_USB_NET), MP_ROM_PTR(&mod_network_nic_type_usbnet) },
+#else
+#define MICROPY_HW_NIC_USBNET
+#endif
+
 // extra constants
 #define MICROPY_PORT_CONSTANTS \
     MACHINE_BUILTIN_MODULE_CONSTANTS \
@@ -232,6 +239,7 @@ extern const struct _mp_obj_type_t mod_network_nic_type_wiznet5k;
     MICROPY_HW_NIC_ETH  \
     MICROPY_HW_NIC_CYW43 \
     MICROPY_HW_NIC_WIZNET5K \
+    MICROPY_HW_NIC_USBNET \
     MICROPY_BOARD_NETWORK_INTERFACES \
 
 #define MP_STATE_PORT MP_STATE_VM

ports/stm32/mpnetworkport.c

@@ -43,6 +43,10 @@
 #include "lwip/dhcp.h"
 #include "lwip/apps/mdns.h"
 
+#if MICROPY_HW_NETWORK_USBNET
+#include "extmod/network_usbd_ncm.h"
+#endif
+
 #if MICROPY_PY_NETWORK_CYW43
 #include "extmod/network_cyw43.h"
 #include "lib/cyw43-driver/src/cyw43.h"
@@ -70,6 +74,10 @@ static void pyb_lwip_poll(void) {
     wiznet5k_poll();
     #endif
 
+    #if MICROPY_HW_NETWORK_USBNET
+    network_usbd_ncm_service_traffic();
+    #endif
+
     // Run the lwIP internal updates
     sys_check_timeouts();