Add initial RP2040 support

.github/workflows/build.yml

@@ -177,6 +177,7 @@ jobs:
         - "8086_commander"
         - "ADM_B_NRF52840_1"
         - "TG-Watch"
+        - "adafruit_feather_rp2040"
         - "aloriumtech_evo_m51"
         - "aramcon_badge_2019"
         - "arduino_mkr1300"
@@ -294,6 +295,7 @@ jobs:
         - "pyruler"
         - "qtpy_m0"
         - "qtpy_m0_haxpress"
+        - "raspberry_pi_pico"
         - "raytac_mdbt50q-db-40"
         - "robohatmm1_m4"
         - "sam32"
@@ -465,7 +467,7 @@ jobs:
       id: idf-cache
       with:
         path: ${{ github.workspace }}/.idf_tools
-        key: ${{ runner.os }}-idf-tools-${{ hashFiles('.git/modules/ports/esp32s2/esp-idf/HEAD') }}-20210114
+        key: ${{ runner.os }}-idf-tools-${{ hashFiles('.git/modules/ports/esp32s2/esp-idf/HEAD') }}-20210121
     - name: Clone IDF submodules
       run: |
         (cd $IDF_PATH && git submodule update --init)

.gitmodules

@@ -171,3 +171,6 @@
 [submodule "frozen/Adafruit_CircuitPython_LC709203F"]
 	path = frozen/Adafruit_CircuitPython_LC709203F
 	url = https://github.com/adafruit/Adafruit_CircuitPython_LC709203F
+[submodule "ports/raspberrypi/sdk"]
+	path = ports/raspberrypi/sdk
+	url = https://github.com/raspberrypi/pico-sdk.git

Makefile

@@ -255,6 +255,7 @@ stubs:
 	@$(PYTHON) tools/extract_pyi.py shared-bindings/ $(STUBDIR)
 	@$(PYTHON) tools/extract_pyi.py extmod/ulab/code/ $(STUBDIR)/ulab
 	@$(PYTHON) tools/extract_pyi.py ports/atmel-samd/bindings $(STUBDIR)
+	@$(PYTHON) tools/extract_pyi.py ports/raspberrypi/bindings $(STUBDIR)
 	@$(PYTHON) setup.py -q sdist
 
 .PHONY: check-stubs

conf.py

@@ -189,6 +189,7 @@
                     "ports/nrf/nrfx",
                     "ports/nrf/peripherals",
                     "ports/nrf/usb",
+                    "ports/raspberrypi/sdk",
                     "ports/stm/st_driver",
                     "ports/stm/packages",
                     "ports/stm/peripherals",

docs/supported_ports.rst

@@ -13,8 +13,9 @@ is limited.
 
     ../ports/atmel-samd/README
     ../ports/cxd56/README
+    ../ports/esp32s2/README
     ../ports/litex/README
     ../ports/mimxrt10xx/README
     ../ports/nrf/README
+    ../ports/raspberrypi/README
     ../ports/stm/README
-    ../ports/esp32s2/README

extmod/vfs.c

@@ -71,6 +71,7 @@ mp_vfs_mount_t *mp_vfs_lookup_path(const char *path, const char **path_out) {
 STATIC mp_vfs_mount_t *lookup_path(mp_obj_t path_in, mp_obj_t *path_out) {
     const char *path = mp_obj_str_get_str(path_in);
     const char *p_out;
+    *path_out = mp_const_none;
     mp_vfs_mount_t *vfs = mp_vfs_lookup_path(path, &p_out);
     if (vfs != MP_VFS_NONE && vfs != MP_VFS_ROOT) {
         *path_out = mp_obj_new_str_of_type(mp_obj_get_type(path_in),
@@ -329,7 +330,7 @@ mp_obj_t mp_vfs_ilistdir(size_t n_args, const mp_obj_t *args) {
         path_in = MP_OBJ_NEW_QSTR(MP_QSTR_);
     }
 
-    mp_obj_t path_out;
+    mp_obj_t path_out = mp_const_none;
     mp_vfs_mount_t *vfs = lookup_path(path_in, &path_out);
 
     if (vfs == MP_VFS_ROOT) {
@@ -359,7 +360,7 @@ mp_obj_t mp_vfs_listdir(size_t n_args, const mp_obj_t *args) {
 MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_vfs_listdir_obj, 0, 1, mp_vfs_listdir);
 
 mp_obj_t mp_vfs_mkdir(mp_obj_t path_in) {
-    mp_obj_t path_out;
+    mp_obj_t path_out = mp_const_none;
     mp_vfs_mount_t *vfs = lookup_path(path_in, &path_out);
     if (vfs == MP_VFS_ROOT || (vfs != MP_VFS_NONE && !strcmp(mp_obj_str_get_str(path_out), "/"))) {
         mp_raise_OSError(MP_EEXIST);

main.c

@@ -317,7 +317,7 @@ STATIC bool run_code_py(safe_mode_t safe_mode) {
 
     // Program has finished running.
 
-    bool serial_connected_before_animation = serial_connected();
+    bool printed_press_any_key = false;
     #if CIRCUITPY_DISPLAYIO
     bool refreshed_epaper_display = false;
     #endif
@@ -364,19 +364,20 @@ STATIC bool run_code_py(safe_mode_t safe_mode) {
         }
         #endif
 
-        if (!serial_connected_before_animation && serial_connected()) {
+        if (!printed_press_any_key && serial_connected()) {
             if (!serial_connected_at_start) {
                 print_code_py_status_message(safe_mode);
             }
 
             print_safe_mode_message(safe_mode);
             serial_write("\n");
             serial_write_compressed(translate("Press any key to enter the REPL. Use CTRL-D to reload.\n"));
+            printed_press_any_key = true;
         }
-        if (serial_connected_before_animation && !serial_connected()) {
+        if (!serial_connected()) {
             serial_connected_at_start = false;
+            printed_press_any_key = false;
         }
-        serial_connected_before_animation = serial_connected();
 
         // Refresh the ePaper display if we have one. That way it'll show an error message.
         #if CIRCUITPY_DISPLAYIO

ports/atmel-samd/boards/sparkfun_samd21_dev/mpconfigboard.mk

@@ -10,4 +10,10 @@ INTERNAL_FLASH_FILESYSTEM = 1
 LONGINT_IMPL = NONE
 CIRCUITPY_FULL_BUILD = 0
 
+ifeq ($(TRANSLATION),de_DE)
+RELEASE_NEEDS_CLEAN_BUILD = 1
+CFLAGS_INLINE_LIMIT = 35
+SUPEROPT_VM = 0
+endif
+
 SUPEROPT_GC = 0

ports/raspberrypi/.gitignore

@@ -0,0 +1 @@
+build-*/