add support for native SAMD HCD

hw/bsp/samd21/family.c

@@ -60,7 +60,13 @@
 // Forward USB interrupt events to TinyUSB IRQ Handler
 //--------------------------------------------------------------------+
 void USB_Handler(void) {
+#if CFG_TUD_ENABLED
   tud_int_handler(0);
+#endif
+
+#if CFG_TUH_ENABLED && !(defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421)
+  tuh_int_handler(0);
+#endif
 }
 
 //--------------------------------------------------------------------+
@@ -140,8 +146,14 @@ void board_init(void) {
   gpio_set_pin_function(PIN_PA19, PINMUX_PA19F_TCC0_WO3);
   _gclk_enable_channel(TCC0_GCLK_ID, GCLK_CLKCTRL_GEN_GCLK0_Val);
 
-#if CFG_TUH_ENABLED && defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421
-  max3421_init();
+#if CFG_TUH_ENABLED
+  #if defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421
+    max3421_init();
+  #else
+    // VBUS Power
+    gpio_set_pin_direction(PIN_PA28, GPIO_DIRECTION_OUT);
+    gpio_set_pin_level(PIN_PA28, true);
+  #endif
 #endif
 }
 

hw/bsp/samd21/family.cmake

@@ -99,6 +99,7 @@ function(family_configure_example TARGET RTOS)
   family_add_tinyusb(${TARGET} OPT_MCU_SAMD21 ${RTOS})
   target_sources(${TARGET}-tinyusb PUBLIC
     ${TOP}/src/portable/microchip/samd/dcd_samd.c
+    ${TOP}/src/portable/microchip/samd/hcd_samd.c
     )
   target_link_libraries(${TARGET}-tinyusb PUBLIC board_${BOARD})
 

hw/bsp/samd21/family.mk

@@ -23,6 +23,7 @@ LDFLAGS_CLANG +=
 
 SRC_C += \
 	src/portable/microchip/samd/dcd_samd.c \
+	src/portable/microchip/samd/hcd_samd.c \
 	${SDK_DIR}/gcc/gcc/startup_samd21.c \
 	${SDK_DIR}/gcc/system_samd21.c \
 	${SDK_DIR}/hal/src/hal_atomic.c \