ports/samd: Add support for USB devices defined in Python.

projectgus · projectgus · commit 108e7f0fc986 · 2024-03-13T12:19:00.000+11:00
Currently disabled by default, set MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE to
enable.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton &lt;angus@redyak.com.au&gt;
diff --git 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
@@ -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
@@ -62,6 +62,11 @@
 // SAMD unique ID is 16 bytes (hex string == 32)
 #ifndef MICROPY_HW_USB_DESC_STR_MAX
 #define MICROPY_HW_USB_DESC_STR_MAX (32)
+
+#ifndef MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE
+// Enable to use the 'usbd' module
+#define MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE    (0)
+#endif
 #endif
 #endif
 
