shared/tinyusb: Add USBD_CDC class to access usb serial port.

Signed-off-by: Andrew Leech <[email protected]>
andrewleech · Oct 27, 2024 · ab8bfd4 · ab8bfd4
1 parent a231a63
commit ab8bfd4
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Showing 4 changed files with 415 additions and 14 deletions.
diff --git a/extmod/modmachine.c b/extmod/modmachine.c
@@ -32,6 +32,10 @@
 #include "extmod/modmachine.h"
 #include "shared/runtime/pyexec.h"
 
+#if MICROPY_HW_USB_CDC
+#include "shared/tinyusb/mp_usbd_cdc.h"
+#endif
+
 #if MICROPY_PY_MACHINE_DHT_READINTO
 #include "drivers/dht/dht.h"
 #endif
@@ -234,6 +238,9 @@ static const mp_rom_map_elem_t machine_module_globals_table[] = {
     #if MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE
     { MP_ROM_QSTR(MP_QSTR_USBDevice), MP_ROM_PTR(&machine_usb_device_type) },
     #endif
+    #if MICROPY_HW_USB_CDC
+    { MP_ROM_QSTR(MP_QSTR_USBD_CDC), MP_ROM_PTR(&machine_usbd_cdc_type) },
+    #endif
     #if MICROPY_PY_MACHINE_WDT
     { MP_ROM_QSTR(MP_QSTR_WDT), MP_ROM_PTR(&machine_wdt_type) },
     #endif

diff --git a/shared/tinyusb/mp_usbd.h b/shared/tinyusb/mp_usbd.h
@@ -34,6 +34,7 @@
 #include "py/obj.h"
 #include "py/objarray.h"
 #include "py/runtime.h"
+#include "mp_usbd_cdc.h"
 
 #ifndef NO_QSTR
 #include "tusb.h"
@@ -45,6 +46,10 @@ static inline void mp_usbd_init_tud(void) {
     tusb_init();
     tud_cdc_configure_fifo_t cfg = { .rx_persistent = 0, .tx_persistent = 1 };
     tud_cdc_configure_fifo(&cfg);
+
+    #if MICROPY_HW_USB_CDC
+    machine_usbd_cdc_init0();
+    #endif
 }
 
 // Run the TinyUSB device task