From 7f5d8c4605e9305b7d1dbb100d6704618f8f3b4b Mon Sep 17 00:00:00 2001
From: Angus Gratton <angus@redyak.com.au>
Date: Thu, 23 Nov 2023 09:53:16 +1100
Subject: [PATCH] samd: Enable support for Python USB devices.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
---
 ports/samd/Makefile       | 1 +
 ports/samd/main.c         | 3 +++
 ports/samd/mpconfigport.h | 5 +++++
 3 files changed, 9 insertions(+)

diff --git a/ports/samd/Makefile b/ports/samd/Makefile
index 5a7cb9916a..b678cd9828 100644
--- a/ports/samd/Makefile
+++ b/ports/samd/Makefile
@@ -136,6 +136,7 @@ SHARED_SRC_C += \
 	shared/tinyusb/mp_cdc_common.c \
 	shared/tinyusb/mp_usbd.c \
 	shared/tinyusb/mp_usbd_descriptor.c \
+	shared/tinyusb/mp_usbd_runtime.c \
 
 ASF4_SRC_C += $(addprefix lib/asf4/$(MCU_SERIES_LOWER)/,\
 	hal/src/hal_atomic.c \
diff --git a/ports/samd/main.c b/ports/samd/main.c
index f051e961ff..9f213f27d4 100644
--- a/ports/samd/main.c
+++ b/ports/samd/main.c
@@ -93,6 +93,9 @@ void samd_main(void) {
         pwm_deinit_all();
         #endif
         soft_timer_deinit();
+        #if MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE
+        mp_usbd_deinit();
+        #endif
         gc_sweep_all();
         #if MICROPY_PY_MACHINE_I2C || MICROPY_PY_MACHINE_SPI || MICROPY_PY_MACHINE_UART
         sercom_deinit_all();
diff --git a/ports/samd/mpconfigport.h b/ports/samd/mpconfigport.h
index 28a99333d3..0b47500bf7 100644
--- a/ports/samd/mpconfigport.h
+++ b/ports/samd/mpconfigport.h
@@ -63,8 +63,13 @@
 #ifndef MICROPY_HW_USB_DESC_STR_MAX
 #define MICROPY_HW_USB_DESC_STR_MAX (32)
 #endif
+// Support machine.USBDevice
+#ifndef MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE
+#define MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE    (1)
 #endif
 
+#endif // MICROPY_HW_ENABLE_USBDEV
+
 #define MICROPY_PY_SYS_PLATFORM             "samd"
 
 // Extended modules