Merge pull request #39 from adafruit/main

Merge from adafruit main for RP2040

.github/workflows/build.yml

@@ -176,7 +176,8 @@ jobs:
         board:
         - "8086_commander"
         - "ADM_B_NRF52840_1"
-        - "TG-Watch02A"
+        - "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"
@@ -315,6 +317,7 @@ jobs:
         - "spresense"
         - "stackrduino_m0_pro"
         - "stm32f411ce_blackpill"
+        - "stm32f411ce_blackpill_with_flash"
         - "stm32f411ve_discovery"
         - "stm32f412zg_discovery"
         - "stm32f4_discovery"
@@ -464,7 +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') }}-20200801
+        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

@@ -156,3 +156,21 @@
 [submodule "ports/esp32s2/certificates/nina-fw"]
 	path = ports/esp32s2/certificates/nina-fw
 	url = https://github.com/adafruit/nina-fw.git
+[submodule "frozen/Adafruit_CircuitPython_ST7789"]
+	path = frozen/Adafruit_CircuitPython_ST7789
+	url = https://github.com/adafruit/Adafruit_CircuitPython_ST7789
+[submodule "frozen/Adafruit_CircuitPython_Display_Shapes"]
+	path = frozen/Adafruit_CircuitPython_Display_Shapes
+	url = https://github.com/adafruit/Adafruit_CircuitPython_Display_Shapes
+[submodule "frozen/Adafruit_CircuitPython_Display_Text"]
+	path = frozen/Adafruit_CircuitPython_Display_Text
+	url = https://github.com/adafruit/Adafruit_CircuitPython_Display_Text
+[submodule "frozen/Adafruit_CircuitPython_ProgressBar"]
+	path = frozen/Adafruit_CircuitPython_ProgressBar
+	url = https://github.com/adafruit/Adafruit_CircuitPython_ProgressBar
+[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

@@ -23,6 +23,7 @@ import re
 import subprocess
 import sys
 import urllib.parse
+import time
 
 import recommonmark
 from sphinx.transforms import SphinxTransform
@@ -101,9 +102,12 @@ redirects_file = 'docs/redirects.txt'
 # The master toctree document.
 #master_doc = 'index'
 
+# Get current date (execution) for copyright year
+current_date = time.localtime()
+
 # General information about the project.
 project = 'Adafruit CircuitPython'
-copyright = '2014-2020, MicroPython & CircuitPython contributors (https://github.com/adafruit/circuitpython/graphs/contributors)'
+copyright = f'2014-{current_date.tm_year}, MicroPython & CircuitPython contributors (https://github.com/adafruit/circuitpython/graphs/contributors)'
 
 # These are overwritten on ReadTheDocs.
 # The version info for the project you're documenting, acts as replacement for
@@ -185,6 +189,7 @@ exclude_patterns = ["**/build*",
                     "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/ulab

@@ -1 +1 @@
-Subproject commit d62d07ea0b9597535428ebe6012da6b0d6608bf9
+Subproject commit 8b804f3bcd8c5a3ac1b3e09e0ff7faf8270751de

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);

frozen/Adafruit_CircuitPython_Display_Shapes

@@ -0,0 +1 @@
+Subproject commit 07435f53ee60e373042d6a3c8261218edd7c4e88

frozen/Adafruit_CircuitPython_Display_Text

@@ -0,0 +1 @@
+Subproject commit 92733f5103eb81e1c1f0b0e2cdd9009f3bae344a

frozen/Adafruit_CircuitPython_LC709203F

@@ -0,0 +1 @@
+Subproject commit 9945e1da2bca561995c6dea387d47877e89cf571

frozen/Adafruit_CircuitPython_ProgressBar

@@ -0,0 +1 @@
+Subproject commit f8206d40e9375bfa5ffc8ace2948751c742c8f8f

frozen/Adafruit_CircuitPython_ST7789

@@ -0,0 +1 @@
+Subproject commit e0225d3f7c4e137846cb2ceed4915559d4ba9daf

lib/tinyusb

@@ -1 +1 @@
-Subproject commit cfcffe94ce62f5ef1fb5aef4641924d64dc4b1c0
+Subproject commit 388abe9d9cc0a7c360fd902e01461a53bb7b3f42

lib/uzlib

@@ -1 +1 @@
-Subproject commit f966da0fab121e910ea74f037f074538a2e6dbbb
+Subproject commit 27e4f4c15ba30c2cfc89575159e8efb50f95037e

locale/ID.po

@@ -6,7 +6,7 @@ msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-01-04 12:55-0600\n"
-"PO-Revision-Date: 2021-01-03 05:29+0000\n"
+"PO-Revision-Date: 2021-01-15 19:49+0000\n"
 "Last-Translator: oon arfiandwi <oon.arfiandwi@gmail.com>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "Language: ID\n"
@@ -14,7 +14,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
-"X-Generator: Weblate 4.4.1-dev\n"
+"X-Generator: Weblate 4.5-dev\n"
 
 #: main.c
 msgid ""
@@ -2054,38 +2054,41 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
 msgid "Unknown gatt error: 0x%04x"
-msgstr ""
+msgstr "Kesalahan gatt tidak dikenal: 0x%04x"
 
 #: supervisor/shared/safe_mode.c
 msgid "Unknown reason."
-msgstr ""
+msgstr "Alasan yang tidak diketahui."
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
 msgid "Unknown security error: 0x%04x"
-msgstr ""
+msgstr "Kesalahan keamanan tidak dikenal: 0x%04x"
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
 msgid "Unknown soft device error: %04x"
-msgstr ""
+msgstr "Kesalahan perangkat lunak tidak dikenal: %04x"
 
 #: shared-bindings/_pixelbuf/PixelBuf.c
 #, c-format
 msgid "Unmatched number of items on RHS (expected %d, got %d)."
-msgstr ""
+msgstr "Jumlah item pada RHS  tidak cocok (diharapkan %d, didapatkan %d)."
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 msgid ""
 "Unspecified issue. Can be that the pairing prompt on the other device was "
 "declined or ignored."
 msgstr ""
+"Masalah yang tidak ditentukan. Bisa jadi permintaan pemasangan pada "
+"perangkat lain ditolak atau diabaikan."
 
 #: ports/atmel-samd/common-hal/busio/I2C.c ports/cxd56/common-hal/busio/I2C.c
 #: ports/esp32s2/common-hal/busio/UART.c ports/stm/common-hal/busio/I2C.c
@@ -2099,15 +2102,15 @@ msgstr "Baudrate tidak didukung"
 
 #: shared-module/audiocore/WaveFile.c
 msgid "Unsupported format"
-msgstr ""
+msgstr "Format tidak didukung"
 
 #: py/moduerrno.c
 msgid "Unsupported operation"
-msgstr ""
+msgstr "Operasi yang tidak didukung"
 
 #: shared-bindings/digitalio/DigitalInOut.c
 msgid "Unsupported pull value."
-msgstr ""
+msgstr "Nilai tarikan yang tidak didukung."
 
 #: ports/esp32s2/common-hal/dualbank/__init__.c
 msgid "Update Failed"
@@ -2116,12 +2119,12 @@ msgstr ""
 #: ports/nrf/common-hal/_bleio/Characteristic.c
 #: ports/nrf/common-hal/_bleio/Descriptor.c
 msgid "Value length != required fixed length"
-msgstr ""
+msgstr "Panjang nilai != Panjang tetap yang dibutuhkan"
 
 #: ports/nrf/common-hal/_bleio/Characteristic.c
 #: ports/nrf/common-hal/_bleio/Descriptor.c
 msgid "Value length > max_length"
-msgstr ""
+msgstr "Panjang nilai > max_length"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Version was invalid"
@@ -2129,11 +2132,11 @@ msgstr ""
 
 #: py/emitnative.c
 msgid "Viper functions don't currently support more than 4 arguments"
-msgstr ""
+msgstr "Fungsi Viper saat ini tidak mendukung lebih dari 4 argumen"
 
 #: ports/stm/common-hal/microcontroller/Processor.c
 msgid "Voltage read timed out"
-msgstr ""
+msgstr "Tegangan baca habis waktu"
 
 #: main.c
 msgid "WARNING: Your code filename has two extensions\n"
@@ -2185,11 +2188,11 @@ msgstr ""
 
 #: ports/nrf/common-hal/_bleio/PacketBuffer.c
 msgid "Writes not supported on Characteristic"
-msgstr ""
+msgstr "Menulis tidak didukung pada Karakteristik"
 
 #: supervisor/shared/safe_mode.c
 msgid "You are in safe mode: something unanticipated happened.\n"
-msgstr ""
+msgstr "Anda berada dalam mode aman: sesuatu yang tidak terduga terjadi.\n"
 
 #: supervisor/shared/safe_mode.c
 msgid "You requested starting safe mode by "
@@ -2197,7 +2200,7 @@ msgstr "Anda mengajukan untuk memulai mode aman pada (safe mode) pada "
 
 #: py/objtype.c
 msgid "__init__() should return None"
-msgstr ""
+msgstr "__init __() harus mengembalikan None"
 
 #: py/objtype.c
 msgid "__init__() should return None, not '%q'"
@@ -2205,7 +2208,7 @@ msgstr ""
 
 #: py/objobject.c
 msgid "__new__ arg must be a user-type"
-msgstr ""
+msgstr "__new__ arg harus berupa user-type"
 
 #: extmod/modubinascii.c extmod/moduhashlib.c py/objarray.c
 msgid "a bytes-like object is required"
@@ -2222,19 +2225,19 @@ msgstr "alamat %08x tidak selaras dengan %d bytes"
 
 #: shared-bindings/i2cperipheral/I2CPeripheral.c
 msgid "address out of bounds"
-msgstr ""
+msgstr "alamat di luar batas"
 
 #: shared-bindings/i2cperipheral/I2CPeripheral.c
 msgid "addresses is empty"
-msgstr ""
+msgstr "alamatnya kosong"
 
 #: py/modbuiltins.c
 msgid "arg is an empty sequence"
-msgstr ""
+msgstr "arg berisi urutan kosong"
 
 #: extmod/ulab/code/numerical/numerical.c
 msgid "argsort argument must be an ndarray"
-msgstr ""
+msgstr "Argumen argsort harus berupa ndarray"
 
 #: extmod/ulab/code/numerical/numerical.c
 msgid "argsort is not implemented for flattened arrays"
@@ -2242,7 +2245,7 @@ msgstr ""
 
 #: py/runtime.c
 msgid "argument has wrong type"
-msgstr ""
+msgstr "argumen memiliki tipe yang salah"
 
 #: extmod/ulab/code/linalg/linalg.c
 msgid "argument must be ndarray"
@@ -2255,11 +2258,11 @@ msgstr "argumen num/types tidak cocok"
 
 #: py/runtime.c
 msgid "argument should be a '%q' not a '%q'"
-msgstr ""
+msgstr "argumen harus berupa '%q' bukan '%q'"
 
 #: extmod/ulab/code/linalg/linalg.c extmod/ulab/code/numerical/numerical.c
 msgid "arguments must be ndarrays"
-msgstr ""
+msgstr "argumen harus berupa ndarrays"
 
 #: extmod/ulab/code/ndarray.c
 msgid "array and index length must be equal"
@@ -2268,7 +2271,7 @@ msgstr ""
 #: py/objarray.c shared-bindings/alarm/SleepMemory.c
 #: shared-bindings/nvm/ByteArray.c
 msgid "array/bytes required on right side"
-msgstr ""
+msgstr "diperlukan array/byte di sisi kanan"
 
 #: extmod/ulab/code/numerical/numerical.c
 msgid "attempt to get (arg)min/(arg)max of empty sequence"
@@ -2276,11 +2279,11 @@ msgstr ""
 
 #: extmod/ulab/code/numerical/numerical.c
 msgid "attempt to get argmin/argmax of an empty sequence"
-msgstr ""
+msgstr "berusaha mendapatkan argmin/argmax dari urutan kosong"
 
 #: py/objstr.c
 msgid "attributes not supported yet"
-msgstr ""
+msgstr "atribut belum didukung"
 
 #: extmod/ulab/code/numerical/numerical.c
 msgid "axis is out of bounds"
@@ -2300,7 +2303,7 @@ msgstr "mode compile buruk"
 
 #: py/objstr.c
 msgid "bad conversion specifier"
-msgstr ""
+msgstr "specifier salah konversi"
 
 #: py/objstr.c
 msgid "bad format string"
@@ -2326,10 +2329,18 @@ msgstr ""
 msgid "branch not in range"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 #, fuzzy
 msgid "buffer size must match format"
@@ -3388,6 +3399,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 #, fuzzy
 msgid "offset out of bounds"

locale/circuitpython.pot

@@ -2013,7 +2013,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2278,10 +2279,18 @@ msgstr ""
 msgid "branch not in range"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr ""
@@ -3339,6 +3348,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr ""

locale/cs.po

@@ -2016,7 +2016,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2281,10 +2282,18 @@ msgstr ""
 msgid "branch not in range"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr ""
@@ -3342,6 +3351,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr ""

locale/de_DE.po

@@ -2058,7 +2058,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2338,10 +2339,18 @@ msgstr "Es müssen 8 oder 16 bits_per_sample sein"
 msgid "branch not in range"
 msgstr "Zweig ist außerhalb der Reichweite"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "Puffer muss ein bytes-artiges Objekt sein"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr "Die Puffergröße muss zum Format passen"
@@ -3419,6 +3428,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr "offset außerhalb der Grenzen"

locale/el.po

@@ -2013,7 +2013,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2278,10 +2279,18 @@ msgstr ""
 msgid "branch not in range"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr ""
@@ -3339,6 +3348,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr ""

locale/es.po

@@ -2063,8 +2063,9 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr "Error no manejado de ESP TLS %d %d %x %d"
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
-msgstr "Fallo desconocido"
+msgid "Unknown failure %d"
+msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
@@ -2339,10 +2340,18 @@ msgstr "bits_per_sample debe ser 8 ó 16"
 msgid "branch not in range"
 msgstr "la rama no está dentro del rango"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "buffer debe de ser un objeto bytes-like"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr "el tamaño del buffer debe de coincidir con el formato"
@@ -3413,6 +3422,10 @@ msgstr "offset es demasiado grande"
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr "offset fuera de límites"
@@ -4034,6 +4047,9 @@ msgstr "zi debe ser de tipo flotante"
 msgid "zi must be of shape (n_section, 2)"
 msgstr "zi debe ser una forma (n_section,2)"
 
+#~ msgid "Unknown failure"
+#~ msgstr "Fallo desconocido"
+
 #~ msgid "input argument must be an integer or a 2-tuple"
 #~ msgstr "el argumento de entrada debe ser un entero o una tupla de par"
 

locale/fil.po

@@ -2034,7 +2034,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2308,10 +2309,18 @@ msgstr "bits_per_sample ay dapat 8 o 16"
 msgid "branch not in range"
 msgstr "branch wala sa range"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "buffer ay dapat bytes-like object"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 #, fuzzy
 msgid "buffer size must match format"
@@ -3386,6 +3395,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 #, fuzzy
 msgid "offset out of bounds"

locale/fr.po

@@ -8,14 +8,14 @@ msgstr ""
 "Project-Id-Version: 0.1\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-01-04 12:55-0600\n"
-"PO-Revision-Date: 2021-01-13 16:07+0000\n"
+"PO-Revision-Date: 2021-01-17 12:55+0000\n"
 "Last-Translator: Hugo Dahl <hugo@code-jedi.com>\n"
 "Language: fr\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n > 1;\n"
-"X-Generator: Weblate 4.4.1-dev\n"
+"X-Generator: Weblate 4.5-dev\n"
 
 #: main.c
 msgid ""
@@ -646,7 +646,7 @@ msgstr ""
 #: shared-bindings/digitalio/DigitalInOut.c
 msgid "Cannot set value when direction is input."
 msgstr ""
-"Impossible d'affecter une valeur quand la direction est entrentre ('input')."
+"Impossible d'affecter une valeur quand la direction est entrante ('input')."
 
 #: ports/esp32s2/common-hal/busio/UART.c
 #: ports/mimxrt10xx/common-hal/busio/UART.c
@@ -2085,8 +2085,9 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr "Erreur ESP TLS non gérée %d %d %x %d"
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
-msgstr "Echec inconnu"
+msgid "Unknown failure %d"
+msgstr "Échec inconnu %d"
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
@@ -2363,10 +2364,18 @@ msgstr "'bits_per_sample' doivent être 8 ou 16"
 msgid "branch not in range"
 msgstr "branche hors-bornes"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr "tampon est plus petit que la taille demandée"
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "le tampon doit être un objet bytes-like"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr "taille du tampon doit être un multiple de la taille de l'élement"
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr "la taille du tampon doit correspondre au format"
@@ -3446,6 +3455,10 @@ msgstr "offset est trop large"
 msgid "offset must be >= 0"
 msgstr "offset doit être >= 0"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr "offset doit être non-négatif, et au plus la taille du tampon"
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr "décalage hors limites"
@@ -4070,6 +4083,9 @@ msgstr "zi doit être de type float"
 msgid "zi must be of shape (n_section, 2)"
 msgstr "zi doit être de forme (n_section, 2)"
 
+#~ msgid "Unknown failure"
+#~ msgstr "Echec inconnu"
+
 #~ msgid "Only one alarm.touch alarm can be set."
 #~ msgstr "Seulement une alarme alarm.touch peut être réglée."
 

locale/hi.po

@@ -2013,7 +2013,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2278,10 +2279,18 @@ msgstr ""
 msgid "branch not in range"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr ""
@@ -3339,6 +3348,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr ""

locale/it_IT.po

@@ -2046,7 +2046,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2314,10 +2315,18 @@ msgstr "i bit devono essere 7, 8 o 9"
 msgid "branch not in range"
 msgstr "argomento di chr() non è in range(256)"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 #, fuzzy
 msgid "buffer size must match format"
@@ -3392,6 +3401,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 #, fuzzy
 msgid "offset out of bounds"

locale/ja.po

@@ -2036,7 +2036,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2301,10 +2302,18 @@ msgstr "bits_per_sampleは8または16でなければなりません"
 msgid "branch not in range"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "バッファはbytes-likeオブジェクトでなければなりません"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr ""
@@ -3367,6 +3376,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr ""

locale/ko.po

@@ -2017,7 +2017,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2282,10 +2283,18 @@ msgstr "bits_per_sample은 8 또는 16이어야합니다."
 msgid "branch not in range"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr ""
@@ -3343,6 +3352,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr ""

locale/nl.po

@@ -2055,8 +2055,9 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr "Niet behandelde ESP TLS fout %d %d %x %d"
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
-msgstr "Onbekende fout"
+msgid "Unknown failure %d"
+msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
@@ -2331,10 +2332,18 @@ msgstr "bits_per_sample moet 8 of 16 zijn"
 msgid "branch not in range"
 msgstr "pad (branch) niet binnen bereik"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "buffer moet een byte-achtig object zijn"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr "grootte van de buffer moet overeenkomen met het formaat"
@@ -3400,6 +3409,10 @@ msgstr "compensatie is te groot"
 msgid "offset must be >= 0"
 msgstr "compensatie moet groter of gelijk 0 zijn"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr "offset buiten bereik"
@@ -4021,6 +4034,9 @@ msgstr "zi moet van type float zijn"
 msgid "zi must be of shape (n_section, 2)"
 msgstr "zi moet vorm (n_section, 2) hebben"
 
+#~ msgid "Unknown failure"
+#~ msgstr "Onbekende fout"
+
 #~ msgid "input argument must be an integer or a 2-tuple"
 #~ msgstr "invoerargument moet een integer of 2-tuple zijn"
 

locale/pl.po

@@ -7,7 +7,7 @@ msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-01-04 12:55-0600\n"
-"PO-Revision-Date: 2020-12-02 20:29+0000\n"
+"PO-Revision-Date: 2021-01-20 02:40+0000\n"
 "Last-Translator: Maciej Stankiewicz <tawezik@gmail.com>\n"
 "Language-Team: pl\n"
 "Language: pl\n"
@@ -16,7 +16,7 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=3; plural=n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 "
 "|| n%100>=20) ? 1 : 2;\n"
-"X-Generator: Weblate 4.4-dev\n"
+"X-Generator: Weblate 4.5-dev\n"
 
 #: main.c
 msgid ""
@@ -770,7 +770,7 @@ msgstr "Nie można rozpocząć przerwania, RX jest zajęty"
 
 #: shared-module/audiomp3/MP3Decoder.c
 msgid "Couldn't allocate decoder"
-msgstr ""
+msgstr "Nie udało się przydzielić dekodera"
 
 #: shared-module/audiocore/WaveFile.c shared-module/audiomixer/Mixer.c
 #: shared-module/audiomp3/MP3Decoder.c
@@ -1070,7 +1070,7 @@ msgstr "Niewłaściwa wielkość bufora"
 
 #: ports/esp32s2/common-hal/watchdog/WatchDogTimer.c
 msgid "Initialization failed due to lack of memory"
-msgstr ""
+msgstr "Inicjalizacja nie powiodła się z powodu braku pamięci"
 
 #: ports/atmel-samd/common-hal/pulseio/PulseIn.c
 msgid "Input taking too long"
@@ -1251,11 +1251,11 @@ msgstr "Nieprawidłowy security_mode"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Invalid size"
-msgstr ""
+msgstr "Nieprawidłowy rozmiar"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Invalid state"
-msgstr ""
+msgstr "Nieprawidłowy stan"
 
 #: shared-bindings/audiomixer/Mixer.c
 msgid "Invalid voice"
@@ -1554,7 +1554,7 @@ msgstr ""
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Out of memory"
-msgstr ""
+msgstr "Brak pamięci"
 
 #: ports/esp32s2/common-hal/socketpool/SocketPool.c
 msgid "Out of sockets"
@@ -1707,7 +1707,7 @@ msgstr "Obiekt tylko do odczytu"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Received response was invalid"
-msgstr ""
+msgstr "Otrzymana odpowiedź była nieprawidłowa"
 
 #: shared-bindings/displayio/EPaperDisplay.c
 msgid "Refresh too soon"
@@ -1723,7 +1723,7 @@ msgstr "Żądany tryb AES nie jest obsługiwany"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Requested resource not found"
-msgstr ""
+msgstr "Nie znaleziono żądanego zasobu"
 
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Right channel unsupported"
@@ -2027,7 +2027,8 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr ""
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
+msgid "Unknown failure %d"
 msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
@@ -2298,10 +2299,18 @@ msgstr "bits_per_sample musi być 8 lub 16"
 msgid "branch not in range"
 msgstr "skok poza zakres"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "bufor mysi być typu bytes"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr "wielkość bufora musi pasować do formatu"
@@ -3360,6 +3369,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr "offset poza zakresem"

locale/pt_BR.po

@@ -6,7 +6,7 @@ msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-01-04 12:55-0600\n"
-"PO-Revision-Date: 2021-01-13 02:19+0000\n"
+"PO-Revision-Date: 2021-01-17 12:55+0000\n"
 "Last-Translator: Wellington Terumi Uemura <wellingtonuemura@gmail.com>\n"
 "Language-Team: \n"
 "Language: pt_BR\n"
@@ -14,7 +14,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n > 1;\n"
-"X-Generator: Weblate 4.4.1-dev\n"
+"X-Generator: Weblate 4.5-dev\n"
 
 #: main.c
 msgid ""
@@ -2078,8 +2078,9 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr "Erro não tratado do ESP TLS %d %d %x %d"
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
-msgstr "Falha desconhecida"
+msgid "Unknown failure %d"
+msgstr "Falha desconhecida %d"
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
@@ -2355,10 +2356,18 @@ msgstr "bits_per_sample deve ser 8 ou 16"
 msgid "branch not in range"
 msgstr "ramo fora do alcance"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr "o tamanho do buffer é menor do que o tamanho que foi solicitado"
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "o buffer deve ser um objeto como bytes"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr "o tamanho do buffer deve ser um múltiplo do tamanho do elemento"
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr "o tamanho do buffer deve coincidir com o formato"
@@ -3431,6 +3440,10 @@ msgstr "o offset é muito grande"
 msgid "offset must be >= 0"
 msgstr "o offset deve ser >= 0"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr "o offset deve ser positivo e não maior do que o comprimento do buffer"
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr "desvio fora dos limites"
@@ -4056,6 +4069,9 @@ msgstr "zi deve ser de um tipo float"
 msgid "zi must be of shape (n_section, 2)"
 msgstr "zi deve estar na forma (n_section, 2)"
 
+#~ msgid "Unknown failure"
+#~ msgstr "Falha desconhecida"
+
 #~ msgid "Only one alarm.touch alarm can be set."
 #~ msgstr "Apenas um alarme alarm.touch pode ser definido."
 

locale/sv.po

@@ -6,7 +6,7 @@ msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-01-04 12:55-0600\n"
-"PO-Revision-Date: 2021-01-05 21:03+0000\n"
+"PO-Revision-Date: 2021-01-17 12:55+0000\n"
 "Last-Translator: Jonny Bergdahl <jonny@bergdahl.it>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "Language: sv\n"
@@ -14,7 +14,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Generator: Weblate 4.4.1-dev\n"
+"X-Generator: Weblate 4.5-dev\n"
 
 #: main.c
 msgid ""
@@ -123,7 +123,7 @@ msgstr "%q() kräver %d positionsargument men %d gavs"
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 #, c-format
 msgid "%s error 0x%x"
-msgstr ""
+msgstr "%s fel 0x%x"
 
 #: py/argcheck.c
 msgid "'%q' argument required"
@@ -289,7 +289,7 @@ msgstr "3-arguments pow() stöds inte"
 
 #: shared-module/msgpack/__init__.c
 msgid "64 bit types"
-msgstr ""
+msgstr "64-bitars typer"
 
 #: ports/atmel-samd/common-hal/countio/Counter.c
 #: ports/atmel-samd/common-hal/rotaryio/IncrementalEncoder.c
@@ -555,7 +555,7 @@ msgstr "CBC-block måste vara multiplar om 16 byte"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "CRC or checksum was invalid"
-msgstr ""
+msgstr "CRC eller checksumma var ogiltig"
 
 #: py/objtype.c
 msgid "Call super().__init__() before accessing native object."
@@ -1014,7 +1014,7 @@ msgstr "Funktion kräver lås"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Generic Failure"
-msgstr ""
+msgstr "Generiskt fel"
 
 #: shared-bindings/displayio/Display.c
 #: shared-bindings/displayio/EPaperDisplay.c
@@ -1256,11 +1256,11 @@ msgstr "Ogiltigt säkerhetsläge"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Invalid size"
-msgstr ""
+msgstr "Ogiltig storlek"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Invalid state"
-msgstr ""
+msgstr "Ogiltigt tillstånd"
 
 #: shared-bindings/audiomixer/Mixer.c
 msgid "Invalid voice"
@@ -1304,7 +1304,7 @@ msgstr "Length måste vara positiv"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "MAC address was invalid"
-msgstr ""
+msgstr "MAC-adressen var ogiltig"
 
 #: shared-module/bitbangio/SPI.c
 msgid "MISO pin init failed."
@@ -1540,7 +1540,7 @@ msgstr ""
 
 #: ports/esp32s2/common-hal/alarm/touch/TouchAlarm.c
 msgid "Only one TouchAlarm can be set in deep sleep."
-msgstr ""
+msgstr "Endast ett TouchAlarm kan ställas in för djupsömn."
 
 #: ports/esp32s2/common-hal/alarm/time/TimeAlarm.c
 msgid "Only one alarm.time alarm can be set."
@@ -1556,15 +1556,15 @@ msgstr "Endast raw int stöds för ip"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Operation or feature not supported"
-msgstr ""
+msgstr "Operation eller funktion stöds inte"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Operation timed out"
-msgstr ""
+msgstr "Åtgärden orsakade timeout"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Out of memory"
-msgstr ""
+msgstr "Slut på minne"
 
 #: ports/esp32s2/common-hal/socketpool/SocketPool.c
 msgid "Out of sockets"
@@ -1576,7 +1576,7 @@ msgstr "Översampling måste vara multipel av 8."
 
 #: shared-bindings/audiobusio/PDMIn.c
 msgid "PDMIn not available"
-msgstr ""
+msgstr "PDMIn inte tillgänglig"
 
 #: shared-bindings/pwmio/PWMOut.c
 msgid ""
@@ -1598,7 +1598,7 @@ msgstr "ParallelBus stöds ännu inte"
 
 #: ports/esp32s2/common-hal/audiobusio/__init__.c
 msgid "Peripheral in use"
-msgstr ""
+msgstr "Periferi i bruk"
 
 #: py/moduerrno.c
 msgid "Permission denied"
@@ -1728,7 +1728,7 @@ msgstr "Skrivskyddat objekt"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Received response was invalid"
-msgstr ""
+msgstr "Mottaget svar var ogiltigt"
 
 #: shared-bindings/displayio/EPaperDisplay.c
 msgid "Refresh too soon"
@@ -1744,7 +1744,7 @@ msgstr "Det begärda AES-läget stöds inte"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Requested resource not found"
-msgstr ""
+msgstr "Begärd resurs hittades inte"
 
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Right channel unsupported"
@@ -2058,8 +2058,9 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr "Ej hanterat ESP TLS-fel %d-%d-%x-%d"
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
-msgstr "Okänt fel"
+msgid "Unknown failure %d"
+msgstr "Okänt fel %d"
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
@@ -2130,7 +2131,7 @@ msgstr "Värdets längd > max_length"
 
 #: ports/esp32s2/bindings/espidf/__init__.c ports/esp32s2/esp_error.c
 msgid "Version was invalid"
-msgstr ""
+msgstr "Versionen var ogiltig"
 
 #: py/emitnative.c
 msgid "Viper functions don't currently support more than 4 arguments"
@@ -2331,10 +2332,18 @@ msgstr "bits_per_sample måste vara 8 eller 16"
 msgid "branch not in range"
 msgstr "branch utanför räckvidd"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr "bufferten är mindre än begärd storlek"
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "buffer måste vara en byte-liknande objekt"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr "buffertstorlek måste vara en multipel av elementstorlek"
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr "buffertstorleken måste matcha formatet"
@@ -2544,7 +2553,7 @@ msgstr "circle kan endast registreras i en förälder"
 
 #: shared-bindings/msgpack/ExtType.c
 msgid "code outside range 0~127"
-msgstr ""
+msgstr "kod utanför intervallet 0~127"
 
 #: shared-bindings/displayio/Palette.c
 msgid "color buffer must be 3 bytes (RGB) or 4 bytes (RGB + pad byte)"
@@ -2632,7 +2641,7 @@ msgstr "standard \"except\" måste ligga sist"
 
 #: shared-bindings/msgpack/__init__.c
 msgid "default is not a function"
-msgstr ""
+msgstr "default är inte en funktion"
 
 #: shared-bindings/audiobusio/PDMIn.c
 msgid ""
@@ -2738,7 +2747,7 @@ msgstr "förväntar nyckel:värde för dict"
 
 #: shared-bindings/msgpack/__init__.c
 msgid "ext_hook is not a function"
-msgstr ""
+msgstr "ext_hook är inte en funktion"
 
 #: py/argcheck.c
 msgid "extra keyword arguments given"
@@ -3277,7 +3286,7 @@ msgstr "ingen bindning för ickelokal hittad"
 
 #: shared-module/msgpack/__init__.c
 msgid "no default packer"
-msgstr ""
+msgstr "ingen standardpackare"
 
 #: py/builtinimport.c
 msgid "no module named '%q'"
@@ -3400,6 +3409,10 @@ msgstr "offset är för stor"
 msgid "offset must be >= 0"
 msgstr "offset måste vara >= 0"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr "offset måste vara icke-negativt och inte längre än buffertlängd"
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr "offset utanför gränserna"
@@ -3619,7 +3632,7 @@ msgstr "shape måste vara en tuple"
 
 #: shared-module/msgpack/__init__.c
 msgid "short read"
-msgstr ""
+msgstr "kort läsning"
 
 #: py/objstr.c
 msgid "sign not allowed in string format specifier"
@@ -3995,7 +4008,7 @@ msgstr "x-värde utanför intervall"
 
 #: ports/esp32s2/common-hal/audiobusio/__init__.c
 msgid "xTaskCreate failed"
-msgstr ""
+msgstr "xTaskCreate misslyckades"
 
 #: shared-bindings/displayio/Shape.c
 msgid "y should be an int"
@@ -4021,6 +4034,9 @@ msgstr "zi måste vara av typ float"
 msgid "zi must be of shape (n_section, 2)"
 msgstr "zi måste vara i formen (n_section, 2)"
 
+#~ msgid "Unknown failure"
+#~ msgstr "Okänt fel"
+
 #~ msgid "Only one alarm.touch alarm can be set."
 #~ msgstr "Endast ett larm av typ alarm.touch kan ställas in."
 

locale/zh_Latn_pinyin.po

@@ -2043,8 +2043,9 @@ msgid "Unhandled ESP TLS error %d %d %x %d"
 msgstr "Wèi chǔlǐ de ESP TLS cuòwù %d %d %x %d"
 
 #: shared-bindings/wifi/Radio.c
-msgid "Unknown failure"
+#, c-format
-msgstr "Wèizhī gùzhàng"
+msgid "Unknown failure %d"
+msgstr ""
 
 #: ports/nrf/common-hal/_bleio/__init__.c
 #, c-format
@@ -2317,10 +2318,18 @@ msgstr "měi jiàn yàngběn bìxū wèi 8 huò 16"
 msgid "branch not in range"
 msgstr "fēnzhī bùzài fànwéi nèi"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer is smaller than requested size"
+msgstr ""
+
 #: shared-bindings/audiocore/RawSample.c
 msgid "buffer must be a bytes-like object"
 msgstr "huǎnchōng qū bìxū shì zì jié lèi duìxiàng"
 
+#: extmod/ulab/code/ulab_create.c
+msgid "buffer size must be a multiple of element size"
+msgstr ""
+
 #: shared-module/struct/__init__.c
 msgid "buffer size must match format"
 msgstr "huǎnchōng qū dàxiǎo bìxū pǐpèi géshì"
@@ -3384,6 +3393,10 @@ msgstr ""
 msgid "offset must be >= 0"
 msgstr ""
 
+#: extmod/ulab/code/ulab_create.c
+msgid "offset must be non-negative and no greater than buffer length"
+msgstr ""
+
 #: py/objstr.c py/objstrunicode.c
 msgid "offset out of bounds"
 msgstr "piānlí biānjiè"
@@ -4004,6 +4017,9 @@ msgstr "zi bìxū wèi fú diǎn xíng"
 msgid "zi must be of shape (n_section, 2)"
 msgstr "zi bìxū jùyǒu xíngzhuàng (n_section,2)"
 
+#~ msgid "Unknown failure"
+#~ msgstr "Wèizhī gùzhàng"
+
 #~ msgid "input argument must be an integer or a 2-tuple"
 #~ msgstr "shūrù cānshù bìxū shì zhěngshù huò 2 yuán zǔ"
 

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
@@ -364,7 +364,7 @@ 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);
             }
@@ -372,11 +372,12 @@ STATIC bool run_code_py(safe_mode_t 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/itsybitsy_m4_express/mpconfigboard.h

@@ -12,7 +12,7 @@
 // These are pins not to reset.
 // QSPI Data pins
 #define MICROPY_PORT_A (PORT_PA08 | PORT_PA09 | PORT_PA10 | PORT_PA11)
-// DotStar pins, QSPI CS, and QSPI SCK
+// DotStar SCK, DotStar MOSI, QSPI SCK, and QSPI CS
 #define MICROPY_PORT_B (PORT_PB02 | PORT_PB03 | PORT_PB10 | PORT_PB11)
 #define MICROPY_PORT_C (0)
 #define MICROPY_PORT_D (0)

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/esp32s2/boards/adafruit_magtag_2.9_grayscale/pins.c

@@ -4,7 +4,11 @@
 
 STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
     { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_GPIO10) },
+
+    { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_GPIO18) },
+    // Previous name from schematic.
     { MP_ROM_QSTR(MP_QSTR_AD1), MP_ROM_PTR(&pin_GPIO18) },
+
     { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_GPIO13) },
 
     { MP_ROM_QSTR(MP_QSTR_SPEAKER), MP_ROM_PTR(&pin_GPIO17) },

ports/esp32s2/boards/unexpectedmaker_feathers2/board.c

@@ -27,8 +27,6 @@
 #include "supervisor/board.h"
 #include "mpconfigboard.h"
 #include "shared-bindings/microcontroller/Pin.h"
-#include "components/driver/include/driver/gpio.h"
-#include "components/soc/include/hal/gpio_hal.h"
 
 void board_init(void) {
     // USB
@@ -49,12 +47,6 @@ void board_init(void) {
     common_hal_never_reset_pin(&pin_GPIO30);
     common_hal_never_reset_pin(&pin_GPIO31);
     common_hal_never_reset_pin(&pin_GPIO32);
-
-
-    // Add LDO2 to never reset list, set to output and enable
-    common_hal_never_reset_pin(&pin_GPIO21);
-    gpio_set_direction(pin_GPIO21.number, GPIO_MODE_DEF_OUTPUT);
-    gpio_set_level(pin_GPIO21.number, true);
 }
 
 bool board_requests_safe_mode(void) {

ports/esp32s2/boards/unexpectedmaker_feathers2/mpconfigboard.h

@@ -34,8 +34,8 @@
 
 #define AUTORESET_DELAY_MS 500
 
-#define MICROPY_HW_APA102_MOSI   (&pin_GPIO40)
+// #define MICROPY_HW_APA102_MOSI   (&pin_GPIO40)
-#define MICROPY_HW_APA102_SCK    (&pin_GPIO45)
+// #define MICROPY_HW_APA102_SCK    (&pin_GPIO45)
 
 #define DEFAULT_I2C_BUS_SCL (&pin_GPIO9)
 #define DEFAULT_I2C_BUS_SDA (&pin_GPIO8)

ports/esp32s2/common-hal/microcontroller/Pin.c

@@ -37,14 +37,13 @@
 #ifdef MICROPY_HW_NEOPIXEL
 bool neopixel_in_use;
 #endif
-#ifdef MICROPY_HW_APA102_MOSI
-bool apa102_sck_in_use;
-bool apa102_mosi_in_use;
-#endif
 
 STATIC uint32_t never_reset_pins[2];
 STATIC uint32_t in_use[2];
 
+bool apa102_mosi_in_use;
+bool apa102_sck_in_use;
+
 STATIC void floating_gpio_reset(gpio_num_t pin_number) {
     // This is the same as gpio_reset_pin(), but without the pullup.
     // Note that gpio_config resets the iomatrix to GPIO_FUNC as well.
@@ -87,20 +86,6 @@ void reset_pin_number(gpio_num_t pin_number) {
         return;
     }
     #endif
-    #ifdef MICROPY_HW_APA102_MOSI
-    if (pin_number == MICROPY_HW_APA102_MOSI->number ||
-        pin_number == MICROPY_HW_APA102_SCK->number) {
-        apa102_mosi_in_use = apa102_mosi_in_use && pin_number != MICROPY_HW_APA102_MOSI->number;
-        apa102_sck_in_use = apa102_sck_in_use && pin_number != MICROPY_HW_APA102_SCK->number;
-        if (!apa102_sck_in_use && !apa102_mosi_in_use) {
-            rgb_led_status_init();
-        }
-        return;
-    }
-    #endif
-
-
-
 }
 
 void common_hal_reset_pin(const mcu_pin_obj_t* pin) {
@@ -125,11 +110,6 @@ void reset_all_pins(void) {
     #ifdef MICROPY_HW_NEOPIXEL
     neopixel_in_use = false;
     #endif
-    #ifdef MICROPY_HW_APA102_MOSI
-    apa102_sck_in_use = false;
-    apa102_mosi_in_use = false;
-    #endif
-
 }
 
 void claim_pin(const mcu_pin_obj_t* pin) {
@@ -139,15 +119,6 @@ void claim_pin(const mcu_pin_obj_t* pin) {
         neopixel_in_use = true;
     }
     #endif
-    #ifdef MICROPY_HW_APA102_MOSI
-    if (pin == MICROPY_HW_APA102_MOSI) {
-        apa102_mosi_in_use = true;
-    }
-    if (pin == MICROPY_HW_APA102_SCK) {
-        apa102_sck_in_use = true;
-    }
-    #endif
-
 }
 
 void common_hal_mcu_pin_claim(const mcu_pin_obj_t* pin) {
@@ -160,18 +131,10 @@ bool pin_number_is_free(gpio_num_t pin_number) {
         return !neopixel_in_use;
     }
     #endif
-    #ifdef MICROPY_HW_APA102_MOSI
-    if (pin_number == MICROPY_HW_APA102_MOSI->number) {
-        return !apa102_mosi_in_use;
-    }
-    if (pin_number == MICROPY_HW_APA102_SCK->number) {
-        return !apa102_sck_in_use;
-    }
-    #endif
 
     uint8_t offset = pin_number / 32;
     uint32_t mask = 1 << (pin_number % 32);
-    return (in_use[offset] & mask) == 0;
+    return (never_reset_pins[offset] & mask) == 0 && (in_use[offset] & mask) == 0;
 }
 
 bool common_hal_mcu_pin_is_free(const mcu_pin_obj_t *pin) {

ports/esp32s2/common-hal/microcontroller/Pin.h

@@ -31,10 +31,8 @@
 
 #include "peripherals/pins.h"
 
-#ifdef MICROPY_HW_APA102_MOSI
-extern bool apa102_sck_in_use;
 extern bool apa102_mosi_in_use;
-#endif
+extern bool apa102_sck_in_use;
 
 #ifdef MICROPY_HW_NEOPIXEL
 extern bool neopixel_in_use;

ports/esp32s2/common-hal/wifi/Radio.c

@@ -168,11 +168,11 @@ wifi_radio_error_t common_hal_wifi_radio_connect(wifi_radio_obj_t *self, uint8_t
     } while ((bits & (WIFI_CONNECTED_BIT | WIFI_DISCONNECTED_BIT)) == 0 && !mp_hal_is_interrupted());
     if ((bits & WIFI_DISCONNECTED_BIT) != 0) {
         if (self->last_disconnect_reason == WIFI_REASON_AUTH_FAIL) {
-            return WIFI_RADIO_ERROR_AUTH;
+            return WIFI_RADIO_ERROR_AUTH_FAIL;
         } else if (self->last_disconnect_reason == WIFI_REASON_NO_AP_FOUND) {
             return WIFI_RADIO_ERROR_NO_AP_FOUND;
         }
-        return WIFI_RADIO_ERROR_UNKNOWN;
+        return self->last_disconnect_reason;
     }
     return WIFI_RADIO_ERROR_NONE;
 }

ports/esp32s2/common-hal/wifi/__init__.c

@@ -65,11 +65,9 @@ static void event_handler(void* arg, esp_event_base_t event_base,
                 uint8_t reason = d->reason;
                 ESP_LOGW(TAG, "reason %d 0x%02x", reason, reason);
                 if (radio->retries_left > 0 &&
-                        (reason == WIFI_REASON_AUTH_EXPIRE ||
+                        reason != WIFI_REASON_AUTH_FAIL &&
-                         reason == WIFI_REASON_NOT_AUTHED ||
+                        reason != WIFI_REASON_NO_AP_FOUND &&
-                         reason == WIFI_REASON_ASSOC_EXPIRE ||
+                        reason != WIFI_REASON_ASSOC_LEAVE) {
-                         reason == WIFI_REASON_CONNECTION_FAIL ||
-                         reason == WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT)) {
                     radio->retries_left--;
                     ESP_LOGI(TAG, "Retrying connect. %d retries remaining", radio->retries_left);
                     esp_wifi_connect();

ports/esp32s2/peripherals/touch.c

@@ -46,8 +46,13 @@ void peripherals_touch_init(const touch_pad_t touchpad) {
     if (!touch_inited) {
         touch_pad_init();
         touch_pad_set_fsm_mode(TOUCH_FSM_MODE_TIMER);
+    }
+    // touch_pad_config() must be done before touch_pad_fsm_start() the first time.
+    // Otherwise the calibration is wrong and we get maximum raw values if there is
+    // a trace of any significant length on the pin.
+    touch_pad_config(touchpad);
+    if (!touch_inited) {
         touch_pad_fsm_start();
         touch_inited = true;
     }
-    touch_pad_config(touchpad);
 }

ports/esp32s2/supervisor/port.c

@@ -143,9 +143,9 @@ safe_mode_t port_init(void) {
         case ESP_RST_BROWNOUT:
             return BROWNOUT;
         case ESP_RST_PANIC:
+            return HARD_CRASH;
         case ESP_RST_INT_WDT:
         case ESP_RST_WDT:
-            return HARD_CRASH;
         default:
             break;
     }

ports/nrf/boards/TG-Watch/mpconfigboard.h

@@ -27,10 +27,15 @@
 
 #include "nrfx/hal/nrf_gpio.h"
 
-#define MICROPY_HW_BOARD_NAME       "TG-Techie's TG-Watch02A"
+#define MICROPY_HW_BOARD_NAME       "TG-Watch"
 #define MICROPY_HW_MCU_NAME         "nRF52840"
 
-#define MICROPY_HW_LED_STATUS       (&pin_P0_07)
+#define MICROPY_HW_NEOPIXEL         (&pin_P0_16)
+#define MICROPY_HW_LED_STATUS       (&pin_P1_15)
+
+// TG-Gui requires a deeper call stack than normal CircuitPython
+#define CIRCUITPY_PYSTACK_SIZE 8192 // 1536 is the normal size, (32 bytes/frame * 48 frames)
+#define BOARD_HAS_CRYSTAL 0
 
 #if QSPI_FLASH_FILESYSTEM
 #define MICROPY_QSPI_DATA0                NRF_GPIO_PIN_MAP(0, 17)
@@ -48,8 +53,6 @@
 #define SPI_FLASH_CS_PIN &pin_P0_20
 #endif
 
-#define BOARD_HAS_CRYSTAL 0
-
 #define DEFAULT_I2C_BUS_SCL         (&pin_P0_11)
 #define DEFAULT_I2C_BUS_SDA         (&pin_P0_12)
 

ports/nrf/boards/TG-Watch/mpconfigboard.mk

@@ -1,7 +1,7 @@
 USB_VID = 0x239A
 USB_PID = 0x80DB
-USB_PRODUCT = "TG-Watch02A"
+USB_PRODUCT = "TG-Watch"
-USB_MANUFACTURER = "TG-Tech"
+USB_MANUFACTURER = "TG-Techie"
 
 MCU_CHIP = nrf52840
 
@@ -11,9 +11,14 @@ EXTERNAL_FLASH_DEVICES = "GD25Q16C, W25Q128JV_SQ"
 
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_BusDevice
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_Register
+FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_ST7789
+FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_Display_Shapes
+FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_Display_Text
+FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_ProgressBar
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_LSM6DS
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_FocalTouch
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_DS3231
+FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_LC709203F
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_DRV2605
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_BLE
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_BLE_Apple_Notification_Center

ports/nrf/boards/TG-Watch/pins.c

@@ -0,0 +1,74 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+
+    /* default ports */
+    { MP_ROM_QSTR(MP_QSTR_UART),    MP_ROM_PTR(&board_uart_obj) },
+    { MP_ROM_QSTR(MP_QSTR_SPI),     MP_ROM_PTR(&board_spi_obj) },
+    { MP_ROM_QSTR(MP_QSTR_I2C),     MP_ROM_PTR(&board_i2c_obj) },
+
+    { MP_ROM_QSTR(MP_QSTR_SCK),  MP_ROM_PTR(&pin_P0_14) },
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_P0_13) },
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_P0_15) },
+
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_P0_25) },
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_P0_24) },
+
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_P0_11) },
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_P0_12) },
+
+    /* TG-Watch specific pins */
+    { MP_ROM_QSTR(MP_QSTR_VBUS_PRESENT),    MP_ROM_PTR(&pin_P1_04) },
+    { MP_ROM_QSTR(MP_QSTR_HAPTIC_ENABLE),   MP_ROM_PTR(&pin_P1_06) },
+    { MP_ROM_QSTR(MP_QSTR_HAPTIC_INT),      MP_ROM_PTR(&pin_P1_07) },
+    { MP_ROM_QSTR(MP_QSTR_CTP_INT),         MP_ROM_PTR(&pin_P1_05) },
+    { MP_ROM_QSTR(MP_QSTR_CTP_RST),         MP_ROM_PTR(&pin_P1_03) },
+    { MP_ROM_QSTR(MP_QSTR_TFT_RST),         MP_ROM_PTR(&pin_P1_01) },
+
+    { MP_ROM_QSTR(MP_QSTR_TFT_DC),  MP_ROM_PTR(&pin_P1_12) },
+    { MP_ROM_QSTR(MP_QSTR_D21),     MP_ROM_PTR(&pin_P1_13) },
+    { MP_ROM_QSTR(MP_QSTR_TFT_CS),  MP_ROM_PTR(&pin_P1_14) },
+
+    { MP_ROM_QSTR(MP_QSTR_ACCEL_INT1), MP_ROM_PTR(&pin_P1_11) },
+    { MP_ROM_QSTR(MP_QSTR_ACCEL_INT2), MP_ROM_PTR(&pin_P1_10) },
+
+    { MP_ROM_QSTR(MP_QSTR_BATTERY_DIV), MP_ROM_PTR(&pin_P0_29) },
+
+    { MP_ROM_QSTR(MP_QSTR_RTC_INT),     MP_ROM_PTR(&pin_P0_27) },
+    { MP_ROM_QSTR(MP_QSTR_RTC_RST),     MP_ROM_PTR(&pin_P0_26) },
+    { MP_ROM_QSTR(MP_QSTR_CHRG_STAT),   MP_ROM_PTR(&pin_P0_06) },
+    { MP_ROM_QSTR(MP_QSTR_BACKLIGHT),   MP_ROM_PTR(&pin_P0_07) },
+    { MP_ROM_QSTR(MP_QSTR_BAT_INT),     MP_ROM_PTR(&pin_P0_08) },
+    { MP_ROM_QSTR(MP_QSTR_SMC_RST),     MP_ROM_PTR(&pin_P0_04) },
+
+    /* nrf52840 compatible pins */
+    { MP_ROM_QSTR(MP_QSTR__A0), MP_ROM_PTR(&pin_P0_04) },
+    { MP_ROM_QSTR(MP_QSTR__A1), MP_ROM_PTR(&pin_P0_05) },
+    { MP_ROM_QSTR(MP_QSTR__A2), MP_ROM_PTR(&pin_P0_30) },
+    { MP_ROM_QSTR(MP_QSTR__A3), MP_ROM_PTR(&pin_P0_28) },
+    { MP_ROM_QSTR(MP_QSTR__A4), MP_ROM_PTR(&pin_P0_02) },
+    { MP_ROM_QSTR(MP_QSTR__A5), MP_ROM_PTR(&pin_P0_03) },
+
+    { MP_ROM_QSTR(MP_QSTR_AREF), MP_ROM_PTR(&pin_P0_31) },
+
+    { MP_ROM_QSTR(MP_QSTR__VOLTAGE_MONITOR), MP_ROM_PTR(&pin_P0_29) },
+    { MP_ROM_QSTR(MP_QSTR__BATTERY), MP_ROM_PTR(&pin_P0_29) },
+
+    { MP_ROM_QSTR(MP_QSTR__SWITCH), MP_ROM_PTR(&pin_P1_02) },
+
+    { MP_ROM_QSTR(MP_QSTR__NFC1), MP_ROM_PTR(&pin_P0_09) },
+    { MP_ROM_QSTR(MP_QSTR__NFC2), MP_ROM_PTR(&pin_P0_10) },
+
+    { MP_ROM_QSTR(MP_QSTR__D2),  MP_ROM_PTR(&pin_P0_10) },
+    { MP_ROM_QSTR(MP_QSTR__D5),  MP_ROM_PTR(&pin_P1_08) },
+    { MP_ROM_QSTR(MP_QSTR__D6),  MP_ROM_PTR(&pin_P0_07) },
+    { MP_ROM_QSTR(MP_QSTR__D9),  MP_ROM_PTR(&pin_P0_26) },
+    { MP_ROM_QSTR(MP_QSTR__D10), MP_ROM_PTR(&pin_P0_27) },
+    { MP_ROM_QSTR(MP_QSTR__D11), MP_ROM_PTR(&pin_P0_06) },
+    { MP_ROM_QSTR(MP_QSTR__D12), MP_ROM_PTR(&pin_P0_08) },
+    { MP_ROM_QSTR(MP_QSTR__D13), MP_ROM_PTR(&pin_P1_09) },
+
+    { MP_ROM_QSTR(MP_QSTR__NEOPIXEL), MP_ROM_PTR(&pin_P0_16) },
+};
+
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);

ports/nrf/boards/TG-Watch02A/pins.c

@@ -1,51 +0,0 @@
-#include "shared-bindings/board/__init__.h"
-
-STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
-
-    /*Port and bus pins*/
-    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_P0_14) },
-    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_P0_13) },
-    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_P0_15) },
-
-    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_P0_11) },
-    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_P0_12) },
-
-    { MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
-    { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
-    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
-
-    /*TG-Watch02A specific pins*/
-
-        //tft / display pins
-        { MP_ROM_QSTR(MP_QSTR_BACKLIGHT), MP_ROM_PTR(&pin_P0_07) },
-        { MP_ROM_QSTR(MP_QSTR_DISP_PWR), MP_ROM_PTR(&pin_P0_05) },
-        { MP_ROM_QSTR(MP_QSTR_TFT_CS), MP_ROM_PTR(&pin_P1_14) },
-        { MP_ROM_QSTR(MP_QSTR_TFT_DC), MP_ROM_PTR(&pin_P1_12) },
-        { MP_ROM_QSTR(MP_QSTR_TFT_RESET), MP_ROM_PTR(&pin_P1_01) },
-
-        //cap touch screen
-        { MP_ROM_QSTR(MP_QSTR_CTP_RESET), MP_ROM_PTR(&pin_P1_03) },
-        { MP_ROM_QSTR(MP_QSTR_CTP_INT), MP_ROM_PTR(&pin_P1_05) },
-
-        //power / battery
-        { MP_ROM_QSTR(MP_QSTR_CHRG_STAT), MP_ROM_PTR(&pin_P0_06) },
-        { MP_ROM_QSTR(MP_QSTR_BAT_VDIV), MP_ROM_PTR(&pin_P0_29) },
-        { MP_ROM_QSTR(MP_QSTR_VBUS_PRESENT), MP_ROM_PTR(&pin_P1_04) },
-
-        //sensors / outputs
-        { MP_ROM_QSTR(MP_QSTR_RTC_RESET), MP_ROM_PTR(&pin_P0_26) },
-        { MP_ROM_QSTR(MP_QSTR_RTC_INT), MP_ROM_PTR(&pin_P0_27) },
-
-        { MP_ROM_QSTR(MP_QSTR_ACCEL_INT1), MP_ROM_PTR(&pin_P1_11) },
-        { MP_ROM_QSTR(MP_QSTR_ACCEL_INT2), MP_ROM_PTR(&pin_P1_10) },
-
-        { MP_ROM_QSTR(MP_QSTR_HAPTIC_INT), MP_ROM_PTR(&pin_P1_07) },
-        { MP_ROM_QSTR(MP_QSTR_HAPTIC_ENABLE), MP_ROM_PTR(&pin_P1_06) },
-
-        //smc pins
-        { MP_ROM_QSTR(MP_QSTR_SMC_RESET), MP_ROM_PTR(&pin_P0_08) },
-        { MP_ROM_QSTR(MP_QSTR_BUTTON0), MP_ROM_PTR(&pin_P1_08) },
-        { MP_ROM_QSTR(MP_QSTR_BUTTON1), MP_ROM_PTR(&pin_P1_09) },
-};
-
-MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);

ports/nrf/common-hal/_bleio/Characteristic.c

@@ -132,13 +132,6 @@ size_t common_hal_bleio_characteristic_get_value(bleio_characteristic_obj_t *sel
 }
 
 void common_hal_bleio_characteristic_set_value(bleio_characteristic_obj_t *self, mp_buffer_info_t *bufinfo) {
-    if (self->fixed_length && bufinfo->len != self->max_length) {
-        mp_raise_ValueError(translate("Value length != required fixed length"));
-    }
-    if (bufinfo->len > self->max_length) {
-        mp_raise_ValueError(translate("Value length > max_length"));
-    }
-
     // Do GATT operations only if this characteristic has been added to a registered service.
     if (self->handle != BLE_GATT_HANDLE_INVALID) {
 
@@ -148,6 +141,14 @@ void common_hal_bleio_characteristic_set_value(bleio_characteristic_obj_t *self,
             common_hal_bleio_gattc_write(self->handle, conn_handle, bufinfo,
                                          (self->props & CHAR_PROP_WRITE_NO_RESPONSE));
         } else {
+            // Validate data length for local characteristics only.
+            if (self->fixed_length && bufinfo->len != self->max_length) {
+                mp_raise_ValueError(translate("Value length != required fixed length"));
+            }
+            if (bufinfo->len > self->max_length) {
+                mp_raise_ValueError(translate("Value length > max_length"));
+            }
+
             // Always write the value locally even if no connections are active.
             // conn_handle is ignored for non-system attributes, so we use BLE_CONN_HANDLE_INVALID.
             common_hal_bleio_gatts_write(self->handle, BLE_CONN_HANDLE_INVALID, bufinfo);

ports/nrf/common-hal/_bleio/Connection.c

@@ -522,7 +522,7 @@ STATIC void on_char_discovery_rsp(ble_gattc_evt_char_disc_rsp_t *response, bleio
         common_hal_bleio_characteristic_construct(
             characteristic, m_char_discovery_service, gattc_char->handle_value, uuid,
             props, SECURITY_MODE_OPEN, SECURITY_MODE_OPEN,
-            GATT_MAX_DATA_LENGTH, false,   // max_length, fixed_length: values may not matter for gattc
+            GATT_MAX_DATA_LENGTH, false,   // max_length, fixed_length: values don't matter for gattc
             mp_const_empty_bytes);
 
         mp_obj_list_append(MP_OBJ_FROM_PTR(m_char_discovery_service->characteristic_list),

ports/nrf/common-hal/_bleio/Descriptor.c

@@ -73,13 +73,6 @@ size_t common_hal_bleio_descriptor_get_value(bleio_descriptor_obj_t *self, uint8
 }
 
 void common_hal_bleio_descriptor_set_value(bleio_descriptor_obj_t *self, mp_buffer_info_t *bufinfo) {
-    if (self->fixed_length && bufinfo->len != self->max_length) {
-        mp_raise_ValueError(translate("Value length != required fixed length"));
-    }
-    if (bufinfo->len > self->max_length) {
-        mp_raise_ValueError(translate("Value length > max_length"));
-    }
-
     // Do GATT operations only if this descriptor has been registered.
     if (self->handle != BLE_GATT_HANDLE_INVALID) {
         uint16_t conn_handle = bleio_connection_get_conn_handle(self->characteristic->service->connection);
@@ -87,6 +80,14 @@ void common_hal_bleio_descriptor_set_value(bleio_descriptor_obj_t *self, mp_buff
             // false means WRITE_REQ, not write-no-response
             common_hal_bleio_gattc_write(self->handle, conn_handle, bufinfo, false);
         } else {
+            // Validate data length for local descriptors only.
+            if (self->fixed_length && bufinfo->len != self->max_length) {
+                mp_raise_ValueError(translate("Value length != required fixed length"));
+            }
+            if (bufinfo->len > self->max_length) {
+                mp_raise_ValueError(translate("Value length > max_length"));
+            }
+
             common_hal_bleio_gatts_write(self->handle, conn_handle, bufinfo);
         }
     }

ports/raspberrypi/.gitignore

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

ports/raspberrypi/Makefile

@@ -0,0 +1,274 @@
+# This file is part of the MicroPython project, http://micropython.org/
+#
+# The MIT License (MIT)
+#
+# SPDX-FileCopyrightText: Copyright (c) 2019 Dan Halbert for Adafruit Industries
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+# Select the board to build for.
+ifeq ($(BOARD),)
+  $(error You must provide a BOARD parameter)
+else
+  ifeq ($(wildcard boards/$(BOARD)/.),)
+    $(error Invalid BOARD specified)
+  endif
+endif
+
+# If the build directory is not given, make it reflect the board name.
+BUILD ?= build-$(BOARD)
+
+include ../../py/mkenv.mk
+# Board-specific
+include boards/$(BOARD)/mpconfigboard.mk
+# Port-specific
+include mpconfigport.mk
+# CircuitPython-specific
+include $(TOP)/py/circuitpy_mpconfig.mk
+
+# qstr definitions (must come before including py.mk)
+QSTR_DEFS = qstrdefsport.h
+
+# include py core make definitions
+include $(TOP)/py/py.mk
+
+include $(TOP)/supervisor/supervisor.mk
+
+# Include make rules and variables common across CircuitPython builds.
+include $(TOP)/py/circuitpy_defns.mk
+
+CROSS_COMPILE = arm-none-eabi-
+
+HAL_DIR=hal/$(MCU_SERIES)
+
+INC += -I. \
+       -I../.. \
+       -I../lib/mp-readline \
+       -I../lib/timeutils \
+       -Iboards/$(BOARD) \
+       -Iboards/ \
+       -isystem sdk/ \
+       -isystem sdk/src/common/pico_base/include/ \
+       -isystem sdk/src/common/pico_binary_info/include/ \
+       -isystem sdk/src/common/pico_stdlib/include/ \
+       -isystem sdk/src/common/pico_sync/include/ \
+       -isystem sdk/src/common/pico_time/include/ \
+       -isystem sdk/src/common/pico_util/include/ \
+       -isystem sdk/src/rp2040/hardware_regs/include/ \
+       -isystem sdk/src/rp2040/hardware_structs/include/ \
+       -isystem sdk/src/rp2_common/hardware_adc/include/ \
+       -isystem sdk/src/rp2_common/hardware_base/include/ \
+       -isystem sdk/src/rp2_common/hardware_claim/include/ \
+       -isystem sdk/src/rp2_common/hardware_clocks/include/ \
+       -isystem sdk/src/rp2_common/hardware_dma/include/ \
+       -isystem sdk/src/rp2_common/hardware_flash/include/ \
+       -isystem sdk/src/rp2_common/hardware_gpio/include/ \
+       -isystem sdk/src/rp2_common/hardware_irq/include/ \
+       -isystem sdk/src/rp2_common/hardware_i2c/include/ \
+       -isystem sdk/src/rp2_common/hardware_pio/include/ \
+       -isystem sdk/src/rp2_common/hardware_pll/include/ \
+       -isystem sdk/src/rp2_common/hardware_resets/include/ \
+       -isystem sdk/src/rp2_common/hardware_spi/include/ \
+       -isystem sdk/src/rp2_common/hardware_sync/include/ \
+       -isystem sdk/src/rp2_common/hardware_timer/include/ \
+       -isystem sdk/src/rp2_common/hardware_uart/include/ \
+       -isystem sdk/src/rp2_common/hardware_watchdog/include/ \
+       -isystem sdk/src/rp2_common/hardware_xosc/include/ \
+       -isystem sdk/src/rp2_common/pico_multicore/include/ \
+       -isystem sdk/src/rp2_common/pico_fix/rp2040_usb_device_enumeration/include/ \
+       -isystem sdk/src/rp2_common/pico_stdio/include/ \
+       -isystem sdk/src/rp2_common/pico_printf/include/ \
+       -isystem sdk/src/rp2_common/pico_float/include/ \
+       -isystem sdk/src/rp2_common/pico_platform/include/ \
+       -isystem sdk/src/rp2_common/pico_runtime/printf/include/ \
+       -isystem sdk/src/rp2_common/pico_bootrom/include/ \
+       -Isdk_config \
+       -I../../lib/tinyusb/src \
+       -I../../supervisor/shared/usb \
+       -I$(BUILD)
+
+# Pico specific configuration
+CFLAGS += -DPICO_ON_DEVICE=1 -DPICO_NO_BINARY_INFO=0 -DPICO_TIME_DEFAULT_ALARM_POOL_DISABLED=1 -DPICO_DIVIDER_CALL_IDIV0=0 -DPICO_DIVIDER_CALL_LDIV0=0 -DPICO_DIVIDER_HARDWARE=1 -DPICO_DOUBLE_ROM=1 -DPICO_FLOAT_ROM=1 -DPICO_MULTICORE=1 -DPICO_BITS_IN_RAM=0 -DPICO_DIVIDER_IN_RAM=0 -DPICO_DOUBLE_PROPAGATE_NANS=0 -DPICO_DOUBLE_IN_RAM=0 -DPICO_MEM_IN_RAM=0 -DPICO_FLOAT_IN_RAM=0 -DPICO_FLOAT_PROPAGATE_NANS=1 -DPICO_NO_FLASH=0 -DPICO_COPY_TO_RAM=0 -DPICO_DISABLE_SHARED_IRQ_HANDLERS=0
+OPTIMIZATION_FLAGS ?= -O3
+# TinyUSB defines
+CFLAGS += -DTUD_OPT_RP2040_USB_DEVICE_ENUMERATION_FIX=1 -DCFG_TUSB_MCU=OPT_MCU_RP2040 -DCFG_TUD_MIDI_RX_BUFSIZE=128 -DCFG_TUD_CDC_RX_BUFSIZE=256 -DCFG_TUD_MIDI_TX_BUFSIZE=128 -DCFG_TUD_CDC_TX_BUFSIZE=256 -DCFG_TUD_MSC_BUFSIZE=1024
+
+# option to override default optimization level, set in boards/$(BOARD)/mpconfigboard.mk
+CFLAGS += $(OPTIMIZATION_FLAGS)
+
+#Debugging/Optimization
+ifeq ($(DEBUG), 1)
+  CFLAGS += -ggdb3 -Og
+  # No LTO because we may place some functions in RAM instead of flash.
+else
+  CFLAGS += -DNDEBUG
+
+  # No LTO because we may place some functions in RAM instead of flash.
+
+  ifdef CFLAGS_BOARD
+    CFLAGS += $(CFLAGS_BOARD)
+  endif
+endif
+
+# Remove -Wno-stringop-overflow after we can test with CI's GCC 10. Mac's looks weird.
+DISABLE_WARNINGS = -Wno-stringop-overflow -Wno-unused-function -Wno-unused-variable -Wno-strict-overflow -Wno-cast-align -Wno-strict-prototypes -Wno-nested-externs -Wno-double-promotion -Wno-sign-compare
+
+CFLAGS += $(INC) -Wall -Werror -std=gnu11 -nostdlib -fshort-enums $(BASE_CFLAGS) $(CFLAGS_MOD) $(COPT) $(DISABLE_WARNINGS)
+
+CFLAGS += \
+  -march=armv6-m \
+  -mthumb \
+	-mabi=aapcs-linux \
+	-mcpu=cortex-m0plus \
+	-msoft-float \
+	-mfloat-abi=soft
+
+PICO_LDFLAGS = --specs=nosys.specs -Wl,--wrap=__aeabi_ldiv0 -Wl,--wrap=__aeabi_idiv0 -Wl,--wrap=__aeabi_lmul -Wl,--wrap=__clzsi2 -Wl,--wrap=__clzdi2 -Wl,--wrap=__ctzsi2 -Wl,--wrap=__ctzdi2 -Wl,--wrap=__popcountsi2 -Wl,--wrap=__popcountdi2 -Wl,--wrap=__clz -Wl,--wrap=__clzl -Wl,--wrap=__clzll -Wl,--wrap=__aeabi_idiv -Wl,--wrap=__aeabi_idivmod -Wl,--wrap=__aeabi_ldivmod -Wl,--wrap=__aeabi_uidiv -Wl,--wrap=__aeabi_uidivmod -Wl,--wrap=__aeabi_uldivmod -Wl,--wrap=__aeabi_dadd -Wl,--wrap=__aeabi_ddiv -Wl,--wrap=__aeabi_dmul -Wl,--wrap=__aeabi_drsub -Wl,--wrap=__aeabi_dsub -Wl,--wrap=__aeabi_cdcmpeq -Wl,--wrap=__aeabi_cdrcmple -Wl,--wrap=__aeabi_cdcmple -Wl,--wrap=__aeabi_dcmpeq -Wl,--wrap=__aeabi_dcmplt -Wl,--wrap=__aeabi_dcmple -Wl,--wrap=__aeabi_dcmpge -Wl,--wrap=__aeabi_dcmpgt -Wl,--wrap=__aeabi_dcmpun -Wl,--wrap=__aeabi_i2d -Wl,--wrap=__aeabi_l2d -Wl,--wrap=__aeabi_ui2d -Wl,--wrap=__aeabi_ul2d -Wl,--wrap=__aeabi_d2iz -Wl,--wrap=__aeabi_d2lz -Wl,--wrap=__aeabi_d2uiz -Wl,--wrap=__aeabi_d2ulz -Wl,--wrap=__aeabi_d2f -Wl,--wrap=sqrt -Wl,--wrap=cos -Wl,--wrap=sin -Wl,--wrap=tan -Wl,--wrap=atan2 -Wl,--wrap=exp -Wl,--wrap=log -Wl,--wrap=ldexp -Wl,--wrap=copysign -Wl,--wrap=trunc -Wl,--wrap=floor -Wl,--wrap=ceil -Wl,--wrap=round -Wl,--wrap=sincos -Wl,--wrap=asin -Wl,--wrap=acos -Wl,--wrap=atan -Wl,--wrap=sinh -Wl,--wrap=cosh -Wl,--wrap=tanh -Wl,--wrap=asinh -Wl,--wrap=acosh -Wl,--wrap=atanh -Wl,--wrap=exp2 -Wl,--wrap=log2 -Wl,--wrap=exp10 -Wl,--wrap=log10 -Wl,--wrap=pow -Wl,--wrap=powint -Wl,--wrap=hypot -Wl,--wrap=cbrt -Wl,--wrap=fmod -Wl,--wrap=drem -Wl,--wrap=remainder -Wl,--wrap=remquo -Wl,--wrap=expm1 -Wl,--wrap=log1p -Wl,--wrap=fma -Wl,--wrap=__aeabi_fadd -Wl,--wrap=__aeabi_fdiv -Wl,--wrap=__aeabi_fmul -Wl,--wrap=__aeabi_frsub -Wl,--wrap=__aeabi_fsub -Wl,--wrap=__aeabi_cfcmpeq -Wl,--wrap=__aeabi_cfrcmple -Wl,--wrap=__aeabi_cfcmple -Wl,--wrap=__aeabi_fcmpeq -Wl,--wrap=__aeabi_fcmplt -Wl,--wrap=__aeabi_fcmple -Wl,--wrap=__aeabi_fcmpge -Wl,--wrap=__aeabi_fcmpgt -Wl,--wrap=__aeabi_fcmpun -Wl,--wrap=__aeabi_i2f -Wl,--wrap=__aeabi_l2f -Wl,--wrap=__aeabi_ui2f -Wl,--wrap=__aeabi_ul2f -Wl,--wrap=__aeabi_f2iz -Wl,--wrap=__aeabi_f2lz -Wl,--wrap=__aeabi_f2uiz -Wl,--wrap=__aeabi_f2ulz -Wl,--wrap=__aeabi_f2d -Wl,--wrap=sqrtf -Wl,--wrap=cosf -Wl,--wrap=sinf -Wl,--wrap=tanf -Wl,--wrap=atan2f -Wl,--wrap=expf -Wl,--wrap=logf -Wl,--wrap=ldexpf -Wl,--wrap=copysignf -Wl,--wrap=truncf -Wl,--wrap=floorf -Wl,--wrap=ceilf -Wl,--wrap=roundf -Wl,--wrap=sincosf -Wl,--wrap=asinf -Wl,--wrap=acosf -Wl,--wrap=atanf -Wl,--wrap=sinhf -Wl,--wrap=coshf -Wl,--wrap=tanhf -Wl,--wrap=asinhf -Wl,--wrap=acoshf -Wl,--wrap=atanhf -Wl,--wrap=exp2f -Wl,--wrap=log2f -Wl,--wrap=exp10f -Wl,--wrap=log10f -Wl,--wrap=powf -Wl,--wrap=powintf -Wl,--wrap=hypotf -Wl,--wrap=cbrtf -Wl,--wrap=fmodf -Wl,--wrap=dremf -Wl,--wrap=remainderf -Wl,--wrap=remquof -Wl,--wrap=expm1f -Wl,--wrap=log1pf -Wl,--wrap=fmaf -Wl,--wrap=memcpy -Wl,--wrap=memset -Wl,--wrap=__aeabi_memcpy -Wl,--wrap=__aeabi_memset -Wl,--wrap=__aeabi_memcpy4 -Wl,--wrap=__aeabi_memset4 -Wl,--wrap=__aeabi_memcpy8 -Wl,--wrap=__aeabi_memset8
+
+LDFLAGS = $(CFLAGS) $(PICO_LDFLAGS) -Wl,-T,link.ld -Wl,-Map=$@.map -Wl,-cref -Wl,--gc-sections
+
+# Use toolchain libm if we're not using our own.
+ifndef INTERNAL_LIBM
+LIBS += -lm
+endif
+
+LDFLAGS += -mthumb -mcpu=cortex-m0plus
+
+SRC_SDK := \
+	src/common/pico_sync/critical_section.c \
+	src/common/pico_sync/lock_core.c \
+	src/common/pico_sync/mutex.c \
+	src/common/pico_time/time.c \
+	src/common/pico_util/pheap.c \
+	src/rp2_common/hardware_adc/adc.c \
+	src/rp2_common/hardware_claim/claim.c \
+	src/rp2_common/hardware_clocks/clocks.c \
+	src/rp2_common/hardware_dma/dma.c \
+	src/rp2_common/hardware_flash/flash.c \
+	src/rp2_common/hardware_gpio/gpio.c \
+	src/rp2_common/hardware_i2c/i2c.c \
+	src/rp2_common/hardware_irq/irq.c \
+	src/rp2_common/hardware_pio/pio.c \
+	src/rp2_common/hardware_pll/pll.c \
+	src/rp2_common/hardware_spi/spi.c \
+	src/rp2_common/hardware_sync/sync.c \
+	src/rp2_common/hardware_timer/timer.c \
+	src/rp2_common/hardware_uart/uart.c \
+	src/rp2_common/hardware_watchdog/watchdog.c \
+	src/rp2_common/hardware_xosc/xosc.c \
+	src/rp2_common/pico_bootrom/bootrom.c \
+	src/rp2_common/pico_double/double_init_rom.c \
+	src/rp2_common/pico_fix/rp2040_usb_device_enumeration/rp2040_usb_device_enumeration.c \
+	src/rp2_common/pico_float/float_init_rom.c \
+	src/rp2_common/pico_float/float_math.c \
+	src/rp2_common/pico_multicore/multicore.c \
+	src/rp2_common/pico_platform/platform.c \
+	src/rp2_common/pico_printf/printf.c \
+	src/rp2_common/pico_runtime/runtime.c \
+	src/rp2_common/pico_stdio/stdio.c \
+
+SRC_SDK := $(addprefix sdk/, $(SRC_SDK))
+
+SRC_C += \
+	boards/$(BOARD)/board.c \
+	boards/$(BOARD)/pins.c \
+	bindings/rp2pio/StateMachine.c \
+	bindings/rp2pio/__init__.c \
+	common-hal/rp2pio/StateMachine.c \
+	common-hal/rp2pio/__init__.c \
+	background.c \
+	peripherals/pins.c \
+	fatfs_port.c \
+	lib/libc/string0.c \
+	lib/mp-readline/readline.c \
+	lib/oofatfs/ff.c \
+	lib/oofatfs/option/ccsbcs.c \
+	lib/timeutils/timeutils.c \
+	lib/tinyusb/src/portable/raspberrypi/rp2040/dcd_rp2040.c \
+	lib/tinyusb/src/portable/raspberrypi/rp2040/rp2040_usb.c \
+	lib/utils/buffer_helper.c \
+	lib/utils/context_manager_helpers.c \
+	lib/utils/interrupt_char.c \
+	lib/utils/pyexec.c \
+	lib/utils/stdout_helpers.c \
+	lib/utils/sys_stdio_mphal.c \
+	mphalport.c \
+	supervisor/shared/memory.c \
+
+SRC_COMMON_HAL_EXPANDED = $(addprefix shared-bindings/, $(SRC_COMMON_HAL)) \
+                          $(addprefix shared-bindings/, $(SRC_BINDINGS_ENUMS)) \
+                          $(addprefix common-hal/, $(SRC_COMMON_HAL))
+
+SRC_SHARED_MODULE_EXPANDED = $(addprefix shared-bindings/, $(SRC_SHARED_MODULE)) \
+                             $(addprefix shared-module/, $(SRC_SHARED_MODULE)) \
+                             $(addprefix shared-module/, $(SRC_SHARED_MODULE_INTERNAL))
+
+# There may be duplicates between SRC_COMMON_HAL_EXPANDED and SRC_SHARED_MODULE_EXPANDED,
+# because a few modules have files both in common-hal/ and shared-modules/.
+# Doing a $(sort ...) removes duplicates as part of sorting.
+SRC_COMMON_HAL_SHARED_MODULE_EXPANDED = $(sort $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED))
+
+SRC_S = supervisor/$(CHIP_FAMILY)_cpu.s
+SRC_S_UPPER = bs2_default_padded_checksummed.S \
+              sdk/src/rp2_common/hardware_divider/divider.S \
+              sdk/src/rp2_common/hardware_irq/irq_handler_chain.S \
+              sdk/src/rp2_common/pico_bit_ops/bit_ops_aeabi.S \
+              sdk/src/rp2_common/pico_double/double_aeabi.S \
+              sdk/src/rp2_common/pico_double/double_v1_rom_shim.S \
+              sdk/src/rp2_common/pico_divider/divider.S \
+              sdk/src/rp2_common/pico_float/float_aeabi.S \
+              sdk/src/rp2_common/pico_float/float_v1_rom_shim.S \
+              sdk/src/rp2_common/pico_int64_ops/pico_int64_ops_aeabi.S \
+              sdk/src/rp2_common/pico_mem_ops/mem_ops_aeabi.S \
+              sdk/src/rp2_common/pico_standard_link/crt0.S \
+
+OBJ = $(PY_O) $(SUPERVISOR_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_SDK:.c=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_COMMON_HAL_SHARED_MODULE_EXPANDED:.c=.o))
+ifeq ($(INTERNAL_LIBM),1)
+OBJ += $(addprefix $(BUILD)/, $(SRC_LIBM:.c=.o))
+endif
+OBJ += $(addprefix $(BUILD)/, $(SRC_S:.s=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_S_UPPER:.S=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_MOD:.c=.o))
+
+
+SRC_QSTR += $(SRC_C) $(SRC_SUPERVISOR) $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED)
+
+all: $(BUILD)/firmware.uf2
+
+$(BUILD)/firmware.elf: $(OBJ) link.ld
+	$(STEPECHO) "LINK $@"
+	$(Q)$(CC) -o $@ $(LDFLAGS) $(OBJ)
+	$(Q)$(SIZE) $@ | $(PYTHON3) $(TOP)/tools/build_memory_info.py link.ld
+
+$(BUILD)/firmware.bin: $(BUILD)/firmware.elf
+	$(STEPECHO) "Create $@"
+	$(Q)$(OBJCOPY) -O binary $^ $@
+
+$(BUILD)/firmware.uf2: $(BUILD)/firmware.bin
+	$(STEPECHO) "Create $@"
+	$(Q)$(PYTHON3) $(TOP)/tools/uf2/utils/uf2conv.py -f 0xe48bff56 -b 0x10000000 -c -o $@ $^
+
+include $(TOP)/py/mkrules.mk
+
+# Print out the value of a make variable.
+# https://stackoverflow.com/questions/16467718/how-to-print-out-a-variable-in-makefile
+print-%:
+	@echo $* = $($*)

ports/raspberrypi/README.rst

@@ -0,0 +1,18 @@
+RP2040
+==================
+
+This port supports many development boards that utilize RP2040 chips. See
+https://circuitpython.org/downloads for all supported boards.
+
+
+Building
+--------
+
+For build instructions see this guide: https://learn.adafruit.com/building-circuitpython/
+
+
+Port Specific modules
+---------------------
+
+.. toctree::
+    ../../shared-bindings/rp2pio/index

ports/raspberrypi/background.c

@@ -0,0 +1,44 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "background.h"
+
+#include "supervisor/filesystem.h"
+#include "supervisor/shared/tick.h"
+#include "supervisor/usb.h"
+
+#include "py/runtime.h"
+#include "shared-module/network/__init__.h"
+#include "supervisor/shared/stack.h"
+#include "supervisor/port.h"
+
+#if CIRCUITPY_DISPLAYIO
+#include "shared-module/displayio/__init__.h"
+#endif
+
+void port_start_background_task(void) {}
+void port_finish_background_task(void) {}
+
+void port_background_task(void) {}

ports/raspberrypi/background.h

@@ -0,0 +1,32 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_BACKGROUND_H
+#define MICROPY_INCLUDED_RASPBERRYPI_BACKGROUND_H
+
+#include <stdbool.h>
+
+#endif  // MICROPY_INCLUDED_RASPBERRYPI_BACKGROUND_H

ports/raspberrypi/bindings/rp2pio/StateMachine.c

@@ -0,0 +1,449 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// This file contains all of the Python API definitions for the
+// rp2pio.StateMachine class.
+
+#include <string.h>
+
+#include "shared-bindings/microcontroller/Pin.h"
+#include "bindings/rp2pio/StateMachine.h"
+#include "shared-bindings/util.h"
+
+#include "lib/utils/buffer_helper.h"
+#include "lib/utils/context_manager_helpers.h"
+#include "lib/utils/interrupt_char.h"
+#include "py/mperrno.h"
+#include "py/objproperty.h"
+#include "py/runtime.h"
+#include "supervisor/shared/translate.h"
+
+
+//| class StateMachine:
+//|     """A single PIO StateMachine
+//|
+//|     The programmable I/O peripheral on the RP2 series of microcontrollers is
+//|     unique. It is a collection of generic state machines that can be
+//|     used for a variety of protocols. State machines may be independent or
+//|     coordinated. Program memory and IRQs are shared between the state machines
+//|     in a particular PIO instance. They are independent otherwise.
+//|
+//|     This class is designed to facilitate sharing of PIO resources. By default,
+//|     it is assumed that the state machine is used on its own and can be placed
+//|     in either PIO. State machines with the same program will be placed in the
+//|     same PIO if possible. To ensure multiple state machines share a PIO use
+//|     the ``colocate`` kwarg during construction and create them one after another."""
+//|
+//|     def __init__(self,
+//|                  program: ReadableBuffer,
+//|                  frequency: int,
+//|                  *,
+//|                  init: Optional[ReadableBuffer] = None,
+//|                  first_out_pin: Optional[microcontroller.Pin] = None,
+//|                  out_pin_count: int = 1,
+//|                  first_in_pin: Optional[microcontroller.Pin] = None,
+//|                  in_pin_count: int = 1,
+//|                  first_set_pin: Optional[microcontroller.Pin] = None,
+//|                  set_pin_count: int = 1,
+//|                  first_sideset_pin: Optional[microcontroller.Pin] = None,
+//|                  sideset_pin_count: int = 1,
+//|                  exclusive_pin_use: bool = True,
+//|                  auto_pull: bool = False,
+//|                  pull_threshold : int = 32,
+//|                  out_shift_right : bool = True,
+//|                  auto_push: bool = False,
+//|                  push_threshold : int = 32,
+//|                  in_shift_right : bool = True) -> None:
+// //|                  colocate: Union[int, StateMachine, None] = None
+//|
+//|         """Construct a StateMachine object on the given pins with the given program.
+//|
+//|         :param ReadableBuffer program: the program to run with the state machine
+//|         :param int frequency: the target clock frequency of the state machine. Actual may be less.
+//|         :param ReadableBuffer init: a program to run once at start up. This is run after program
+//|              is started so instructions may be intermingled
+//|         :param ~microcontroller.Pin first_out_pin: the first pin to use with the OUT instruction
+//|         :param int out_pin_count: the count of consecutive pins to use with OUT starting at first_out_pin
+//|         :param ~microcontroller.Pin first_in_pin: the first pin to use with the IN instruction
+//|         :param int in_pin_count: the count of consecutive pins to use with IN starting at first_in_pin
+//|         :param ~microcontroller.Pin first_set_pin: the first pin to use with the SET instruction
+//|         :param int set_pin_count: the count of consecutive pins to use with SET starting at first_set_pin
+//|         :param ~microcontroller.Pin first_sideset_pin: the first pin to use with a side set
+//|         :param int sideset_pin_count: the count of consecutive pins to use with a side set starting at first_sideset_pin
+//|         :param bool exclusive_pin_use: When True, do not share any pins with other state machines. Pins are never shared with other peripherals
+//|         :param bool auto_pull: When True, automatically load data from the tx FIFO into the
+//|             output shift register (OSR) when an OUT instruction shifts more than pull_threshold bits
+//|         :param int pull_threshold: Number of bits to shift before loading a new value into the OSR from the tx FIFO
+//|         :param bool out_shift_right: When True, data is shifted out the right side (LSB) of the
+//|             OSR. It is shifted out the left (MSB) otherwise. NOTE! This impacts data alignment
+//|             when the number of bytes is not a power of two (1, 2 or 4 bytes).
+//|         :param bool auto_push: When True, automatically save data from input shift register
+//|              (ISR) into the rx FIFO when an IN instruction shifts more than push_threshold bits
+//|         :param int push_threshold: Number of bits to shift before saving the ISR value to the RX FIFO
+//|         :param bool in_shift_right: When True, data is shifted into the right side (LSB) of the
+//|             ISR. It is shifted into the left (MSB) otherwise. NOTE! This impacts data alignment
+//|             when the number of bytes is not a power of two (1, 2 or 4 bytes)."""
+//|         ...
+//|
+
+STATIC mp_obj_t rp2pio_statemachine_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    rp2pio_statemachine_obj_t *self = m_new_obj(rp2pio_statemachine_obj_t);
+    self->base.type = &rp2pio_statemachine_type;
+    enum { ARG_program, ARG_frequency, ARG_init,
+           ARG_first_out_pin, ARG_out_pin_count,
+           ARG_first_in_pin, ARG_in_pin_count,
+           ARG_first_set_pin, ARG_set_pin_count,
+           ARG_first_sideset_pin, ARG_sideset_pin_count,
+           ARG_exclusive_pin_use,
+           ARG_auto_pull, ARG_pull_threshold, ARG_out_shift_right,
+           ARG_auto_push, ARG_push_threshold, ARG_in_shift_right};
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_program, MP_ARG_REQUIRED | MP_ARG_OBJ },
+        { MP_QSTR_frequency, MP_ARG_REQUIRED | MP_ARG_INT },
+        { MP_QSTR_init, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+        { MP_QSTR_first_out_pin, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+        { MP_QSTR_out_pin_count, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
+        { MP_QSTR_first_in_pin, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+        { MP_QSTR_in_pin_count, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
+        { MP_QSTR_first_set_pin, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+        { MP_QSTR_set_pin_count, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
+        { MP_QSTR_first_sideset_pin, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
+        { MP_QSTR_sideset_pin_count, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
+        { MP_QSTR_exclusive_pin_use, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = true} },
+        { MP_QSTR_auto_pull, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
+        { MP_QSTR_pull_threshold, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 32} },
+        { MP_QSTR_out_shift_right, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = true} },
+        { MP_QSTR_auto_push, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
+        { MP_QSTR_push_threshold, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 32} },
+        { MP_QSTR_in_shift_right, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = true} },
+    };
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    mp_buffer_info_t bufinfo;
+    mp_get_buffer_raise(args[ARG_program].u_obj, &bufinfo, MP_BUFFER_READ);
+
+    mp_buffer_info_t init_bufinfo;
+    init_bufinfo.len = 0;
+    mp_get_buffer(args[ARG_init].u_obj, &init_bufinfo, MP_BUFFER_READ);
+
+    // We don't validate pin in use here because we may be ok sharing them within a PIO.
+    mcu_pin_obj_t *first_out_pin = validate_obj_is_pin_or_none(args[ARG_first_out_pin].u_obj);
+    if (args[ARG_out_pin_count].u_int < 1) {
+        mp_raise_ValueError(translate("Pin count must be at least 1"));
+    }
+    mcu_pin_obj_t *first_in_pin = validate_obj_is_pin_or_none(args[ARG_first_in_pin].u_obj);
+    if (args[ARG_in_pin_count].u_int < 1) {
+        mp_raise_ValueError(translate("Pin count must be at least 1"));
+    }
+    mcu_pin_obj_t *first_set_pin = validate_obj_is_pin_or_none(args[ARG_first_set_pin].u_obj);
+    if (args[ARG_set_pin_count].u_int < 1) {
+        mp_raise_ValueError(translate("Pin count must be at least 1"));
+    }
+    if (args[ARG_set_pin_count].u_int > 5) {
+        mp_raise_ValueError(translate("Set pin count must be between 1 and 5"));
+    }
+    mcu_pin_obj_t *first_sideset_pin = validate_obj_is_pin_or_none(args[ARG_first_sideset_pin].u_obj);
+    if (args[ARG_sideset_pin_count].u_int < 1) {
+        mp_raise_ValueError(translate("Pin count must be at least 1"));
+    }
+    if (args[ARG_sideset_pin_count].u_int > 5) {
+        mp_raise_ValueError(translate("Side set pin count must be between 1 and 5"));
+    }
+
+    mp_int_t pull_threshold = args[ARG_pull_threshold].u_int;
+    mp_int_t push_threshold = args[ARG_push_threshold].u_int;
+    if (pull_threshold < 1 || pull_threshold > 32) {
+        mp_raise_ValueError(translate("pull_threshold must be between 1 and 32"));
+    }
+    if (push_threshold < 1 || push_threshold > 32) {
+        mp_raise_ValueError(translate("push_threshold must be between 1 and 32"));
+    }
+
+    if (bufinfo.len < 2) {
+        mp_raise_ValueError(translate("Program must contain at least one 16-bit instruction."));
+    }
+    if (bufinfo.len % 2 != 0) {
+        mp_raise_ValueError(translate("Program size invalid"));
+    }
+    if (bufinfo.len > 32) {
+        mp_raise_ValueError(translate("Program too large"));
+    }
+
+    if (init_bufinfo.len % 2 != 0) {
+        mp_raise_ValueError(translate("Init program size invalid"));
+    }
+
+    common_hal_rp2pio_statemachine_construct(self,
+        bufinfo.buf, bufinfo.len / 2,
+        args[ARG_frequency].u_int,
+        init_bufinfo.buf, init_bufinfo.len / 2,
+        first_out_pin, args[ARG_out_pin_count].u_int,
+        first_in_pin, args[ARG_in_pin_count].u_int,
+        first_set_pin, args[ARG_set_pin_count].u_int,
+        first_sideset_pin, args[ARG_sideset_pin_count].u_int,
+        args[ARG_exclusive_pin_use].u_bool,
+        args[ARG_auto_pull].u_bool, pull_threshold, args[ARG_out_shift_right].u_bool,
+        args[ARG_auto_push].u_bool, push_threshold, args[ARG_in_shift_right].u_bool);
+    return MP_OBJ_FROM_PTR(self);
+}
+
+//|     def deinit(self) -> None:
+//|         """Turn off the state machine and release its resources."""
+//|         ...
+//|
+STATIC mp_obj_t rp2pio_statemachine_obj_deinit(mp_obj_t self_in) {
+    rp2pio_statemachine_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    common_hal_rp2pio_statemachine_deinit(self);
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_1(rp2pio_statemachine_deinit_obj, rp2pio_statemachine_obj_deinit);
+
+//|     def __enter__(self) -> StateMachine:
+//|         """No-op used by Context Managers.
+//|         Provided by context manager helper."""
+//|         ...
+//|
+
+//|     def __exit__(self) -> None:
+//|         """Automatically deinitializes the hardware when exiting a context. See
+//|         :ref:`lifetime-and-contextmanagers` for more info."""
+//|         ...
+//|
+STATIC mp_obj_t rp2pio_statemachine_obj___exit__(size_t n_args, const mp_obj_t *args) {
+    (void)n_args;
+    common_hal_rp2pio_statemachine_deinit(args[0]);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(rp2pio_statemachine_obj___exit___obj, 4, 4, rp2pio_statemachine_obj___exit__);
+
+
+STATIC void check_for_deinit(rp2pio_statemachine_obj_t *self) {
+    if (common_hal_rp2pio_statemachine_deinited(self)) {
+        raise_deinited_error();
+    }
+}
+
+// // |     def restart(self, *other_state_machines) -> None:
+// // |         """Restarts this state machine and any others given. They must share
+// // |            an underlying PIO. An exception will be raised otherwise."""
+// // |         ...
+// // |
+
+//|     def write(self, buffer: ReadableBuffer, *, start: int = 0, end: Optional[int] = None) -> None:
+//|         """Write the data contained in ``buffer`` to the state machine. If the buffer is empty, nothing happens.
+//|
+//|         :param ~_typing.ReadableBuffer buffer: Write out the data in this buffer
+//|         :param int start: Start of the slice of ``buffer`` to write out: ``buffer[start:end]``
+//|         :param int end: End of the slice; this index is not included. Defaults to ``len(buffer)``"""
+//|         ...
+//|
+
+STATIC mp_obj_t rp2pio_statemachine_write(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    enum { ARG_buffer, ARG_start, ARG_end };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_buffer,     MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
+        { MP_QSTR_start,      MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
+        { MP_QSTR_end,        MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = INT_MAX} },
+    };
+    rp2pio_statemachine_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
+    check_for_deinit(self);
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    mp_buffer_info_t bufinfo;
+    mp_get_buffer_raise(args[ARG_buffer].u_obj, &bufinfo, MP_BUFFER_READ);
+    int32_t start = args[ARG_start].u_int;
+    size_t length = bufinfo.len;
+    normalize_buffer_bounds(&start, args[ARG_end].u_int, &length);
+
+    if (length == 0) {
+        return mp_const_none;
+    }
+
+    bool ok = common_hal_rp2pio_statemachine_write(self, ((uint8_t*)bufinfo.buf) + start, length);
+    if (mp_hal_is_interrupted()) {
+        return mp_const_none;
+    }
+    if (!ok) {
+        mp_raise_OSError(MP_EIO);
+    }
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_KW(rp2pio_statemachine_write_obj, 2, rp2pio_statemachine_write);
+
+
+// // |     def readinto(self, buffer: WriteableBuffer, *, start: int = 0, end: Optional[int] = None) -> None:
+// // |         """Read into ``buffer``. If the number of bytes to read is 0, nothing happens.
+// // |
+// // |         :param ~_typing.WriteableBuffer buffer: Read data into this buffer
+// // |         :param int start: Start of the slice of ``buffer`` to read into: ``buffer[start:end]``
+// // |         :param int end: End of the slice; this index is not included. Defaults to ``len(buffer)``
+// // |         :param int write_value: Value to write while reading. (Usually ignored.)"""
+// // |         ...
+// // |
+
+// STATIC mp_obj_t rp2pio_statemachine_readinto(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+//     enum { ARG_buffer, ARG_start, ARG_end, ARG_write_value };
+//     static const mp_arg_t allowed_args[] = {
+//         { MP_QSTR_buffer,     MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
+//         { MP_QSTR_start,      MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
+//         { MP_QSTR_end,        MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = INT_MAX} },
+//         { MP_QSTR_write_value,MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
+//     };
+//     rp2pio_statemachine_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
+//     check_for_deinit(self);
+//     check_lock(self);
+//     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+//     mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+//     mp_buffer_info_t bufinfo;
+//     mp_get_buffer_raise(args[ARG_buffer].u_obj, &bufinfo, MP_BUFFER_WRITE);
+//     int32_t start = args[ARG_start].u_int;
+//     size_t length = bufinfo.len;
+//     normalize_buffer_bounds(&start, args[ARG_end].u_int, &length);
+
+//     if (length == 0) {
+//         return mp_const_none;
+//     }
+
+//     bool ok = common_hal_rp2pio_statemachine_read(self, ((uint8_t*)bufinfo.buf) + start, length, args[ARG_write_value].u_int);
+//     if (!ok) {
+//         mp_raise_OSError(MP_EIO);
+//     }
+//     return mp_const_none;
+// }
+// MP_DEFINE_CONST_FUN_OBJ_KW(rp2pio_statemachine_readinto_obj, 2, rp2pio_statemachine_readinto);
+
+// //|     def write_readinto(self, buffer_out: ReadableBuffer, buffer_in: WriteableBuffer, *, out_start: int = 0, out_end: Optional[int] = None, in_start: int = 0, in_end: Optional[int] = None) -> None:
+// //|         """Write out the data in ``buffer_out`` while simultaneously reading data into ``buffer_in``.
+// //|         The SPI object must be locked.
+// //|         The lengths of the slices defined by ``buffer_out[out_start:out_end]`` and ``buffer_in[in_start:in_end]``
+// //|         must be equal.
+// //|         If buffer slice lengths are both 0, nothing happens.
+// //|
+// //|         :param ~_typing.ReadableBuffer buffer_out: Write out the data in this buffer
+// //|         :param ~_typing.WriteableBuffer buffer_in: Read data into this buffer
+// //|         :param int out_start: Start of the slice of buffer_out to write out: ``buffer_out[out_start:out_end]``
+// //|         :param int out_end: End of the slice; this index is not included. Defaults to ``len(buffer_out)``
+// //|         :param int in_start: Start of the slice of ``buffer_in`` to read into: ``buffer_in[in_start:in_end]``
+// //|         :param int in_end: End of the slice; this index is not included. Defaults to ``len(buffer_in)``"""
+// //|         ...
+// //|
+
+// STATIC mp_obj_t rp2pio_statemachine_write_readinto(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+//     enum { ARG_buffer_out, ARG_buffer_in, ARG_out_start, ARG_out_end, ARG_in_start, ARG_in_end };
+//     static const mp_arg_t allowed_args[] = {
+//         { MP_QSTR_buffer_out,    MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
+//         { MP_QSTR_buffer_in,     MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
+//         { MP_QSTR_out_start,     MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
+//         { MP_QSTR_out_end,       MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = INT_MAX} },
+//         { MP_QSTR_in_start,      MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
+//         { MP_QSTR_in_end,        MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = INT_MAX} },
+//     };
+//     rp2pio_statemachine_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
+//     check_for_deinit(self);
+//     check_lock(self);
+//     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+//     mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+//     mp_buffer_info_t buf_out_info;
+//     mp_get_buffer_raise(args[ARG_buffer_out].u_obj, &buf_out_info, MP_BUFFER_READ);
+//     int32_t out_start = args[ARG_out_start].u_int;
+//     size_t out_length = buf_out_info.len;
+//     normalize_buffer_bounds(&out_start, args[ARG_out_end].u_int, &out_length);
+
+//     mp_buffer_info_t buf_in_info;
+//     mp_get_buffer_raise(args[ARG_buffer_in].u_obj, &buf_in_info, MP_BUFFER_WRITE);
+//     int32_t in_start = args[ARG_in_start].u_int;
+//     size_t in_length = buf_in_info.len;
+//     normalize_buffer_bounds(&in_start, args[ARG_in_end].u_int, &in_length);
+
+//     if (out_length != in_length) {
+//         mp_raise_ValueError(translate("buffer slices must be of equal length"));
+//     }
+
+//     if (out_length == 0) {
+//         return mp_const_none;
+//     }
+
+//     bool ok = common_hal_rp2pio_statemachine_transfer(self,
+//                                             ((uint8_t*)buf_out_info.buf) + out_start,
+//                                             ((uint8_t*)buf_in_info.buf) + in_start,
+//                                             out_length);
+//     if (!ok) {
+//         mp_raise_OSError(MP_EIO);
+//     }
+//     return mp_const_none;
+// }
+// MP_DEFINE_CONST_FUN_OBJ_KW(rp2pio_statemachine_write_readinto_obj, 2, rp2pio_statemachine_write_readinto);
+
+//|     frequency: int
+//|     """The actual state machine frequency. This may not match the frequency requested
+//|     due to internal limitations."""
+//|
+
+STATIC mp_obj_t rp2pio_statemachine_obj_get_frequency(mp_obj_t self_in) {
+    rp2pio_statemachine_obj_t *self = MP_OBJ_TO_PTR(self_in);
+    check_for_deinit(self);
+    return MP_OBJ_NEW_SMALL_INT(common_hal_rp2pio_statemachine_get_frequency(self));
+}
+MP_DEFINE_CONST_FUN_OBJ_1(rp2pio_statemachine_get_frequency_obj, rp2pio_statemachine_obj_get_frequency);
+
+const mp_obj_property_t rp2pio_statemachine_frequency_obj = {
+    .base.type = &mp_type_property,
+    .proxy = {(mp_obj_t)&rp2pio_statemachine_get_frequency_obj,
+              (mp_obj_t)&mp_const_none_obj,
+              (mp_obj_t)&mp_const_none_obj},
+};
+
+STATIC const mp_rom_map_elem_t rp2pio_statemachine_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&rp2pio_statemachine_deinit_obj) },
+    { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) },
+    { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&rp2pio_statemachine_obj___exit___obj) },
+
+//    { MP_ROM_QSTR(MP_QSTR_restart), MP_ROM_PTR(&rp2pio_statemachine_configure_obj) },
+
+//    { MP_ROM_QSTR(MP_QSTR_readinto), MP_ROM_PTR(&rp2pio_statemachine_readinto_obj) },
+    { MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&rp2pio_statemachine_write_obj) },
+//     { MP_ROM_QSTR(MP_QSTR_write_readinto), MP_ROM_PTR(&rp2pio_statemachine_write_readinto_obj) },
+    { MP_ROM_QSTR(MP_QSTR_frequency), MP_ROM_PTR(&rp2pio_statemachine_frequency_obj) }
+};
+STATIC MP_DEFINE_CONST_DICT(rp2pio_statemachine_locals_dict, rp2pio_statemachine_locals_dict_table);
+
+const mp_obj_type_t rp2pio_statemachine_type = {
+   { &mp_type_type },
+   .name = MP_QSTR_StateMachine,
+   .make_new = rp2pio_statemachine_make_new,
+   .locals_dict = (mp_obj_dict_t*)&rp2pio_statemachine_locals_dict,
+};
+
+rp2pio_statemachine_obj_t *validate_obj_is_statemachine(mp_obj_t obj) {
+    if (!MP_OBJ_IS_TYPE(obj, &rp2pio_statemachine_type)) {
+        mp_raise_TypeError_varg(translate("Expected a %q"), rp2pio_statemachine_type.name);
+    }
+    return MP_OBJ_TO_PTR(obj);
+}

ports/raspberrypi/bindings/rp2pio/StateMachine.h

@@ -0,0 +1,71 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_BINDINGS_RP2PIO_STATEMACHINE_H
+#define MICROPY_INCLUDED_RASPBERRYPI_BINDINGS_RP2PIO_STATEMACHINE_H
+
+#include "py/obj.h"
+
+#include "common-hal/microcontroller/Pin.h"
+#include "common-hal/rp2pio/StateMachine.h"
+
+// Type object used in Python. Should be shared between ports.
+extern const mp_obj_type_t rp2pio_statemachine_type;
+
+// Construct an underlying SPI object.
+extern void common_hal_rp2pio_statemachine_construct(rp2pio_statemachine_obj_t *self,
+    const uint16_t* program, size_t program_len,
+    size_t frequency,
+    const uint16_t* init, size_t init_len,
+    const mcu_pin_obj_t * first_out_pin, uint8_t out_pin_count,
+    const mcu_pin_obj_t * first_in_pin, uint8_t in_pin_count,
+    const mcu_pin_obj_t * first_set_pin, uint8_t set_pin_count,
+    const mcu_pin_obj_t * first_sideset_pin, uint8_t sideset_pin_count,
+    bool exclusive_pin_use,
+    bool auto_pull, uint8_t pull_threshold, bool out_shift_right,
+    bool auto_push, uint8_t push_threshold, bool in_shift_right);
+
+extern void common_hal_rp2pio_statemachine_deinit(rp2pio_statemachine_obj_t *self);
+extern bool common_hal_rp2pio_statemachine_deinited(rp2pio_statemachine_obj_t *self);
+
+// Writes out the given data.
+extern bool common_hal_rp2pio_statemachine_write(rp2pio_statemachine_obj_t *self, const uint8_t *data, size_t len);
+
+// // Reads in len bytes while outputting zeroes.
+// extern bool common_hal_rp2pio_statemachine_read(rp2pio_statemachine_obj_t *self, uint8_t *data, size_t len, uint8_t write_value);
+
+// // Reads and write len bytes simultaneously.
+// extern bool common_hal_rp2pio_statemachine_transfer(rp2pio_statemachine_obj_t *self,
+//                                           const uint8_t *data_out, size_t out_len,
+//                                           uint8_t *data_in, size_t in_len);
+
+// Return actual SPI bus frequency.
+uint32_t common_hal_rp2pio_statemachine_get_frequency(rp2pio_statemachine_obj_t* self);
+
+// This is used by the supervisor to claim SPI devices indefinitely.
+// extern void common_hal_rp2pio_statemachine_never_reset(rp2pio_statemachine_obj_t *self);
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_BINDINGS_RP2PIO_STATEMACHINE_H

ports/raspberrypi/bindings/rp2pio/__init__.c

@@ -0,0 +1,45 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/obj.h"
+#include "py/runtime.h"
+
+#include "bindings/rp2pio/StateMachine.h"
+
+//| """Hardware interface to RP2 series' programmable IO (PIO) peripheral."""
+//|
+
+STATIC const mp_rom_map_elem_t rp2pio_module_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_rp2pio) },
+    { MP_ROM_QSTR(MP_QSTR_StateMachine),  MP_ROM_PTR(&rp2pio_statemachine_type) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(rp2pio_module_globals, rp2pio_module_globals_table);
+
+const mp_obj_module_t rp2pio_module = {
+    .base = { &mp_type_module },
+    .globals = (mp_obj_dict_t*)&rp2pio_module_globals,
+};

ports/raspberrypi/boards/adafruit_feather_rp2040/board.c

@@ -0,0 +1,44 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "supervisor/board.h"
+
+#include "shared-bindings/microcontroller/Pin.h"
+#include "src/rp2_common/hardware_gpio/include/hardware/gpio.h"
+
+void board_init(void) {
+    common_hal_never_reset_pin(&pin_GPIO17);
+    gpio_init(17);
+    gpio_set_dir(17, GPIO_OUT);
+    gpio_put(17, true);
+}
+
+bool board_requests_safe_mode(void) {
+    return false;
+}
+
+void reset_board(void) {
+}

ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.h

@@ -0,0 +1,14 @@
+#define MICROPY_HW_BOARD_NAME "Adafruit Feather RP2040"
+#define MICROPY_HW_MCU_NAME "rp2040"
+
+#define MICROPY_HW_NEOPIXEL (&pin_GPIO16)
+
+#define DEFAULT_I2C_BUS_SCL (&pin_GPIO3)
+#define DEFAULT_I2C_BUS_SDA (&pin_GPIO2)
+
+#define DEFAULT_SPI_BUS_SCK (&pin_GPIO18)
+#define DEFAULT_SPI_BUS_MOSI (&pin_GPIO19)
+#define DEFAULT_SPI_BUS_MISO (&pin_GPIO20)
+
+// #define DEFAULT_UART_BUS_RX (&pin_PA11)
+// #define DEFAULT_UART_BUS_TX (&pin_PA10)

ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.mk

@@ -0,0 +1,9 @@
+USB_VID = 0x239A
+USB_PID = 0x80F2
+USB_PRODUCT = "Feather RP2040"
+USB_MANUFACTURER = "Adafruit"
+
+CHIP_VARIANT = RP2040
+CHIP_FAMILY = rp2
+
+INTERNAL_FLASH_FILESYSTEM = 1

ports/raspberrypi/boards/adafruit_feather_rp2040/pins.c

@@ -0,0 +1,36 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_GPIO26) },
+    { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_GPIO27) },
+    { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_GPIO28) },
+    { MP_ROM_QSTR(MP_QSTR_A3), MP_ROM_PTR(&pin_GPIO29) },
+    { MP_ROM_QSTR(MP_QSTR_D24), MP_ROM_PTR(&pin_GPIO24) },
+    { MP_ROM_QSTR(MP_QSTR_D25), MP_ROM_PTR(&pin_GPIO25) },
+    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_GPIO18) },
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_GPIO19) },
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_GPIO20) },
+    { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_GPIO1) },
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO1) },
+    { MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_GPIO0) },
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO0) },
+    { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_GPIO4) },
+
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO2) },
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO3) },
+    { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_GPIO5) },
+    { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_GPIO6) },
+    { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_GPIO9) },
+    { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_GPIO10) },
+    { MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_GPIO11) },
+    { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_GPIO12) },
+    { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_GPIO13) },
+
+    { MP_ROM_QSTR(MP_QSTR_NEOPIXEL), MP_ROM_PTR(&pin_GPIO16) },
+    { MP_ROM_QSTR(MP_QSTR_NEOPIXEL_POWER), MP_ROM_PTR(&pin_GPIO17) },
+
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+    { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
+    // { MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_global_dict_table);

ports/raspberrypi/boards/raspberry_pi_pico/board.c

@@ -0,0 +1,38 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "supervisor/board.h"
+
+void board_init(void)
+{
+}
+
+bool board_requests_safe_mode(void) {
+    return false;
+}
+
+void reset_board(void) {
+}

ports/raspberrypi/boards/raspberry_pi_pico/mpconfigboard.h

@@ -0,0 +1,15 @@
+// LEDs
+// #define MICROPY_HW_LED_STATUS   (&pin_PA17)
+
+#define MICROPY_HW_BOARD_NAME "Raspberry Pi Pico"
+#define MICROPY_HW_MCU_NAME "rp2040"
+
+// #define DEFAULT_I2C_BUS_SCL (&pin_PA23)
+// #define DEFAULT_I2C_BUS_SDA (&pin_PA22)
+
+// #define DEFAULT_SPI_BUS_SCK (&pin_PB11)
+// #define DEFAULT_SPI_BUS_MOSI (&pin_PB10)
+// #define DEFAULT_SPI_BUS_MISO (&pin_PA12)
+
+// #define DEFAULT_UART_BUS_RX (&pin_PA11)
+// #define DEFAULT_UART_BUS_TX (&pin_PA10)

ports/raspberrypi/boards/raspberry_pi_pico/mpconfigboard.mk

@@ -0,0 +1,9 @@
+USB_VID = 0x239A
+USB_PID = 0x80F4
+USB_PRODUCT = "Pico"
+USB_MANUFACTURER = "Raspberry Pi"
+
+CHIP_VARIANT = RP2040
+CHIP_FAMILY = rp2
+
+INTERNAL_FLASH_FILESYSTEM = 1

ports/raspberrypi/boards/raspberry_pi_pico/pins.c

@@ -0,0 +1,38 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_GP0), MP_ROM_PTR(&pin_GPIO0) },
+    { MP_ROM_QSTR(MP_QSTR_GP1), MP_ROM_PTR(&pin_GPIO1) },
+    { MP_ROM_QSTR(MP_QSTR_GP2), MP_ROM_PTR(&pin_GPIO2) },
+    { MP_ROM_QSTR(MP_QSTR_GP3), MP_ROM_PTR(&pin_GPIO3) },
+    { MP_ROM_QSTR(MP_QSTR_GP4), MP_ROM_PTR(&pin_GPIO4) },
+    { MP_ROM_QSTR(MP_QSTR_GP5), MP_ROM_PTR(&pin_GPIO5) },
+    { MP_ROM_QSTR(MP_QSTR_GP6), MP_ROM_PTR(&pin_GPIO6) },
+    { MP_ROM_QSTR(MP_QSTR_GP7), MP_ROM_PTR(&pin_GPIO7) },
+    { MP_ROM_QSTR(MP_QSTR_GP8), MP_ROM_PTR(&pin_GPIO8) },
+    { MP_ROM_QSTR(MP_QSTR_GP9), MP_ROM_PTR(&pin_GPIO9) },
+    { MP_ROM_QSTR(MP_QSTR_GP10), MP_ROM_PTR(&pin_GPIO10) },
+    { MP_ROM_QSTR(MP_QSTR_GP11), MP_ROM_PTR(&pin_GPIO11) },
+    { MP_ROM_QSTR(MP_QSTR_GP12), MP_ROM_PTR(&pin_GPIO12) },
+    { MP_ROM_QSTR(MP_QSTR_GP13), MP_ROM_PTR(&pin_GPIO13) },
+    { MP_ROM_QSTR(MP_QSTR_GP14), MP_ROM_PTR(&pin_GPIO14) },
+    { MP_ROM_QSTR(MP_QSTR_GP16), MP_ROM_PTR(&pin_GPIO16) },
+    { MP_ROM_QSTR(MP_QSTR_GP17), MP_ROM_PTR(&pin_GPIO17) },
+    { MP_ROM_QSTR(MP_QSTR_GP18), MP_ROM_PTR(&pin_GPIO18) },
+    { MP_ROM_QSTR(MP_QSTR_GP19), MP_ROM_PTR(&pin_GPIO19) },
+    { MP_ROM_QSTR(MP_QSTR_GP20), MP_ROM_PTR(&pin_GPIO20) },
+    { MP_ROM_QSTR(MP_QSTR_GP21), MP_ROM_PTR(&pin_GPIO21) },
+    { MP_ROM_QSTR(MP_QSTR_GP22), MP_ROM_PTR(&pin_GPIO22) },
+    { MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO25) },
+    { MP_ROM_QSTR(MP_QSTR_GP25), MP_ROM_PTR(&pin_GPIO25) },
+    { MP_ROM_QSTR(MP_QSTR_GP26_A0), MP_ROM_PTR(&pin_GPIO26) },
+    { MP_ROM_QSTR(MP_QSTR_GP26), MP_ROM_PTR(&pin_GPIO26) },
+    { MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_GPIO26) },
+    { MP_ROM_QSTR(MP_QSTR_GP27_A1), MP_ROM_PTR(&pin_GPIO27) },
+    { MP_ROM_QSTR(MP_QSTR_GP27), MP_ROM_PTR(&pin_GPIO27) },
+    { MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_GPIO27) },
+    { MP_ROM_QSTR(MP_QSTR_GP28_A2), MP_ROM_PTR(&pin_GPIO28) },
+    { MP_ROM_QSTR(MP_QSTR_GP28), MP_ROM_PTR(&pin_GPIO28) },
+    { MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_GPIO28) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_global_dict_table);

ports/raspberrypi/bs2_default_padded_checksummed.S

@@ -0,0 +1,20 @@
+// Padded and checksummed version of: /Users/graham/dev/mu/pico_sdk/cmake-build-debug-mu/src/rp2_common/boot_stage2/bs2_default.bin
+
+.section .boot2, "a"
+
+.byte 0x00, 0xb5, 0x2f, 0x4b, 0x21, 0x20, 0x58, 0x60, 0x98, 0x68, 0x02, 0x21, 0x88, 0x43, 0x98, 0x60
+.byte 0xd8, 0x60, 0x18, 0x61, 0x58, 0x61, 0x2b, 0x4b, 0x00, 0x21, 0x99, 0x60, 0x02, 0x21, 0x59, 0x61
+.byte 0x01, 0x21, 0xf0, 0x22, 0x99, 0x50, 0x28, 0x49, 0x19, 0x60, 0x01, 0x21, 0x99, 0x60, 0x35, 0x20
+.byte 0x00, 0xf0, 0x3e, 0xf8, 0x02, 0x22, 0x90, 0x42, 0x14, 0xd0, 0x06, 0x21, 0x19, 0x66, 0x00, 0xf0
+.byte 0x2e, 0xf8, 0x19, 0x6e, 0x01, 0x21, 0x19, 0x66, 0x00, 0x20, 0x18, 0x66, 0x1a, 0x66, 0x00, 0xf0
+.byte 0x26, 0xf8, 0x19, 0x6e, 0x19, 0x6e, 0x19, 0x6e, 0x05, 0x20, 0x00, 0xf0, 0x29, 0xf8, 0x01, 0x21
+.byte 0x08, 0x42, 0xf9, 0xd1, 0x00, 0x21, 0x99, 0x60, 0x18, 0x49, 0x19, 0x60, 0x00, 0x21, 0x59, 0x60
+.byte 0x17, 0x49, 0x18, 0x48, 0x01, 0x60, 0x01, 0x21, 0x99, 0x60, 0xeb, 0x21, 0x19, 0x66, 0xa0, 0x21
+.byte 0x19, 0x66, 0x00, 0xf0, 0x0c, 0xf8, 0x00, 0x21, 0x99, 0x60, 0x13, 0x49, 0x11, 0x48, 0x01, 0x60
+.byte 0x01, 0x21, 0x99, 0x60, 0x01, 0xbc, 0x00, 0x28, 0x00, 0xd1, 0x10, 0x48, 0x00, 0x47, 0x03, 0xb5
+.byte 0x99, 0x6a, 0x04, 0x20, 0x01, 0x42, 0xfb, 0xd0, 0x01, 0x20, 0x01, 0x42, 0xf8, 0xd1, 0x03, 0xbd
+.byte 0x02, 0xb5, 0x18, 0x66, 0x18, 0x66, 0xff, 0xf7, 0xf2, 0xff, 0x18, 0x6e, 0x18, 0x6e, 0x02, 0xbd
+.byte 0x00, 0x00, 0x02, 0x40, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x07, 0x00, 0x00, 0x03, 0x5f, 0x00
+.byte 0x21, 0x22, 0x00, 0x00, 0xf4, 0x00, 0x00, 0x18, 0x22, 0x20, 0x00, 0xa0, 0x01, 0x01, 0x00, 0x10
+.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x27, 0x2a, 0x60

ports/raspberrypi/common-hal/analogio/AnalogIn.c

@@ -0,0 +1,73 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "common-hal/analogio/AnalogIn.h"
+#include "py/runtime.h"
+#include "supervisor/shared/translate.h"
+
+#include "src/rp2_common/hardware_adc/include/hardware/adc.h"
+
+#define ADC_FIRST_PIN_NUMBER 26
+#define ADC_PIN_COUNT 4
+
+void common_hal_analogio_analogin_construct(analogio_analogin_obj_t *self, const mcu_pin_obj_t *pin) {
+    if (pin->number < ADC_FIRST_PIN_NUMBER || pin->number > ADC_FIRST_PIN_NUMBER + ADC_PIN_COUNT) {
+        mp_raise_ValueError(translate("Pin does not have ADC capabilities"));
+    }
+
+    adc_init();
+
+    adc_gpio_init(pin->number);
+
+    claim_pin(pin);
+    self->pin = pin;
+}
+
+bool common_hal_analogio_analogin_deinited(analogio_analogin_obj_t *self) {
+    return self->pin == NULL;
+}
+
+void common_hal_analogio_analogin_deinit(analogio_analogin_obj_t *self) {
+    if (common_hal_analogio_analogin_deinited(self)) {
+        return;
+    }
+
+    reset_pin_number(self->pin->number);
+    self->pin = NULL;
+}
+
+uint16_t common_hal_analogio_analogin_get_value(analogio_analogin_obj_t *self) {
+    adc_select_input(self->pin->number - ADC_FIRST_PIN_NUMBER);
+    uint16_t value = adc_read();
+
+    // Map value to from 12 to 16 bits
+    return (value << 4);
+}
+
+float common_hal_analogio_analogin_get_reference_voltage(analogio_analogin_obj_t *self) {
+    // The nominal VCC voltage
+    return 3.3f;
+}

ports/raspberrypi/common-hal/analogio/AnalogIn.h

@@ -0,0 +1,41 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_ANALOGIO_ANALOGIN_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_ANALOGIO_ANALOGIN_H
+
+#include "common-hal/microcontroller/Pin.h"
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    const mcu_pin_obj_t * pin;
+} analogio_analogin_obj_t;
+
+void analogin_init(void);
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_ANALOGIO_ANALOGIN_H

ports/raspberrypi/common-hal/analogio/AnalogOut.c

@@ -0,0 +1,48 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Dan Halbert for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/analogio/AnalogOut.h"
+
+#include <stdint.h>
+#include <string.h>
+
+#include "py/mperrno.h"
+#include "py/runtime.h"
+#include "supervisor/shared/translate.h"
+
+void common_hal_analogio_analogout_construct(analogio_analogout_obj_t* self, const mcu_pin_obj_t *pin) {
+    mp_raise_RuntimeError(translate("AnalogOut functionality not supported"));
+}
+
+bool common_hal_analogio_analogout_deinited(analogio_analogout_obj_t *self) {
+    return true;
+}
+
+void common_hal_analogio_analogout_deinit(analogio_analogout_obj_t *self) {
+}
+
+void common_hal_analogio_analogout_set_value(analogio_analogout_obj_t *self, uint16_t value) {
+}

ports/raspberrypi/common-hal/analogio/AnalogOut.h

@@ -0,0 +1,36 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Scott Shawcroft
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_ANALOGIO_ANALOGOUT_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_ANALOGIO_ANALOGOUT_H
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+} analogio_analogout_obj_t;
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_ANALOGIO_ANALOGOUT_H

ports/raspberrypi/common-hal/analogio/__init__.c

@@ -0,0 +1 @@
+// No analogio module functions.

ports/raspberrypi/common-hal/board/__init__.c

@@ -0,0 +1,34 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <string.h>
+
+#include "py/runtime.h"
+#include "py/mphal.h"
+#include "common-hal/microcontroller/Pin.h"
+
+// Pins aren't actually defined here. They are in the board specific directory
+// such as boards/arduino_zero/pins.c.

ports/raspberrypi/common-hal/busio/I2C.c

@@ -0,0 +1,175 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/busio/I2C.h"
+#include "py/mperrno.h"
+#include "py/runtime.h"
+
+#include "shared-bindings/microcontroller/__init__.h"
+#include "supervisor/shared/translate.h"
+
+#include "src/rp2_common/hardware_gpio/include/hardware/gpio.h"
+
+// Synopsys  DW_apb_i2c  (v2.01)  IP
+
+#define NO_PIN 0xff
+
+STATIC bool never_reset_i2c[2];
+STATIC i2c_inst_t* i2c[2] = {i2c0, i2c1};
+
+void reset_i2c(void) {
+    for (size_t i = 0; i < 2; i++) {
+        if (never_reset_i2c[i]) {
+            continue;
+        }
+
+        i2c_deinit(i2c[i]);
+    }
+}
+
+void common_hal_busio_i2c_construct(busio_i2c_obj_t *self,
+        const mcu_pin_obj_t* scl, const mcu_pin_obj_t* sda, uint32_t frequency, uint32_t timeout) {
+    self->peripheral = NULL;
+    // I2C pins have a regular pattern. SCL is always odd and SDA is even. They match up in pairs
+    // so we can divide by two to get the instance. This pattern repeats.
+    if (scl->number % 2 == 1 && sda->number % 2 == 0 && scl->number / 2 == sda->number / 2) {
+        size_t instance = (scl->number / 2) % 2;
+        self->peripheral = i2c[instance];
+    }
+    if (self->peripheral == NULL) {
+        mp_raise_ValueError(translate("Invalid pins"));
+    }
+    if ((i2c_get_hw(self->peripheral)->enable & I2C_IC_ENABLE_ENABLE_BITS) != 0) {
+        mp_raise_ValueError(translate("I2C peripheral in use"));
+    }
+    if (frequency > 1000000) {
+        mp_raise_ValueError(translate("Unsupported baudrate"));
+    }
+
+#if CIRCUITPY_REQUIRE_I2C_PULLUPS
+    // Test that the pins are in a high state. (Hopefully indicating they are pulled up.)
+    gpio_set_function(sda->number, GPIO_FUNC_SIO);
+    gpio_set_function(scl->number, GPIO_FUNC_SIO);
+    gpio_set_dir(sda->number, GPIO_IN);
+    gpio_set_dir(scl->number, GPIO_IN);
+
+    gpio_set_pulls(sda->number, false, true);
+    gpio_set_pulls(scl->number, false, true);
+
+    common_hal_mcu_delay_us(10);
+
+    gpio_set_pulls(sda->number, false, false);
+    gpio_set_pulls(scl->number, false, false);
+
+    // We must pull up within 3us to achieve 400khz.
+    common_hal_mcu_delay_us(3);
+
+    if (!gpio_get(sda->number) || !gpio_get(scl->number)) {
+        reset_pin_number(sda->number);
+        reset_pin_number(scl->number);
+        mp_raise_RuntimeError(translate("SDA or SCL needs a pull up"));
+    }
+#endif
+
+    gpio_set_function(sda->number, GPIO_FUNC_I2C);
+    gpio_set_function(scl->number, GPIO_FUNC_I2C);
+
+    self->baudrate = i2c_init(self->peripheral, frequency);
+
+    self->sda_pin = sda->number;
+    self->scl_pin = scl->number;
+    claim_pin(sda);
+    claim_pin(scl);
+}
+
+bool common_hal_busio_i2c_deinited(busio_i2c_obj_t *self) {
+    return self->sda_pin == NO_PIN;
+}
+
+void common_hal_busio_i2c_deinit(busio_i2c_obj_t *self) {
+    if (common_hal_busio_i2c_deinited(self)) {
+        return;
+    }
+    never_reset_i2c[i2c_hw_index(self->peripheral)] = false;
+
+    i2c_deinit(self->peripheral);
+
+    reset_pin_number(self->sda_pin);
+    reset_pin_number(self->scl_pin);
+    self->sda_pin = NO_PIN;
+    self->scl_pin = NO_PIN;
+}
+
+bool common_hal_busio_i2c_probe(busio_i2c_obj_t *self, uint8_t addr) {
+    uint8_t fake_read = 0;
+    return i2c_read_blocking(self->peripheral, addr, &fake_read, 1, false) != PICO_ERROR_GENERIC;
+}
+
+bool common_hal_busio_i2c_try_lock(busio_i2c_obj_t *self) {
+    bool grabbed_lock = false;
+    if (!self->has_lock) {
+        grabbed_lock = true;
+        self->has_lock = true;
+    }
+    return grabbed_lock;
+}
+
+bool common_hal_busio_i2c_has_lock(busio_i2c_obj_t *self) {
+    return self->has_lock;
+}
+
+void common_hal_busio_i2c_unlock(busio_i2c_obj_t *self) {
+    self->has_lock = false;
+}
+
+uint8_t common_hal_busio_i2c_write(busio_i2c_obj_t *self, uint16_t addr,
+                                   const uint8_t *data, size_t len, bool transmit_stop_bit) {
+    int result = i2c_write_blocking(self->peripheral, addr, data, len, !transmit_stop_bit);
+    if (result == len) {
+        return 0;
+    } else if (result == PICO_ERROR_GENERIC) {
+        return MP_ENODEV;
+    }
+    return MP_EIO;
+}
+
+uint8_t common_hal_busio_i2c_read(busio_i2c_obj_t *self, uint16_t addr,
+        uint8_t *data, size_t len) {
+    int result = i2c_read_blocking(self->peripheral, addr, data, len, false);
+    if (result == len) {
+        return 0;
+    } else if (result == PICO_ERROR_GENERIC) {
+        return MP_ENODEV;
+    }
+    return MP_EIO;
+}
+
+void common_hal_busio_i2c_never_reset(busio_i2c_obj_t *self) {
+    never_reset_i2c[i2c_hw_index(self->peripheral)] = true;
+
+    never_reset_pin_number(self->scl_pin);
+    never_reset_pin_number(self->sda_pin);
+}

ports/raspberrypi/common-hal/busio/I2C.h

@@ -0,0 +1,47 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_I2C_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_I2C_H
+
+#include "common-hal/microcontroller/Pin.h"
+
+#include "py/obj.h"
+
+#include "src/rp2_common/hardware_i2c/include/hardware/i2c.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    i2c_inst_t * peripheral;
+    bool has_lock;
+    uint baudrate;
+    uint8_t scl_pin;
+    uint8_t sda_pin;
+} busio_i2c_obj_t;
+
+void reset_i2c(void);
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_I2C_H

ports/raspberrypi/common-hal/busio/OneWire.h

@@ -0,0 +1,33 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_ONEWIRE_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_ONEWIRE_H
+
+// Use bitbangio.
+#include "shared-module/busio/OneWire.h"
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_ONEWIRE_H

ports/raspberrypi/common-hal/busio/SPI.c

@@ -0,0 +1,294 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/busio/SPI.h"
+
+#include "lib/utils/interrupt_char.h"
+#include "py/mperrno.h"
+#include "py/runtime.h"
+
+#include "supervisor/board.h"
+#include "common-hal/microcontroller/Pin.h"
+#include "supervisor/shared/rgb_led_status.h"
+#include "shared-bindings/microcontroller/Pin.h"
+
+#include "src/rp2_common/hardware_dma/include/hardware/dma.h"
+#include "src/rp2_common/hardware_gpio/include/hardware/gpio.h"
+
+#define NO_INSTANCE 0xff
+
+STATIC bool never_reset_spi[2];
+STATIC spi_inst_t* spi[2] = {spi0, spi1};
+
+void reset_spi(void) {
+    for (size_t i = 0; i < 2; i++) {
+        if (never_reset_spi[i]) {
+            continue;
+        }
+
+        spi_deinit(spi[i]);
+    }
+}
+
+void common_hal_busio_spi_construct(busio_spi_obj_t *self,
+        const mcu_pin_obj_t * clock, const mcu_pin_obj_t * mosi,
+        const mcu_pin_obj_t * miso) {
+    size_t instance_index = NO_INSTANCE;
+    if (clock->number % 4 == 2) {
+        instance_index = (clock->number / 8) % 2;
+    }
+    if (mosi != NULL) {
+        // Make sure the set MOSI matches the clock settings.
+        if (mosi->number % 4 != 3 ||
+            (mosi->number / 8) % 2 != instance_index) {
+            instance_index = NO_INSTANCE;
+        }
+    }
+    if (miso != NULL) {
+        // Make sure the set MOSI matches the clock settings.
+        if (miso->number % 4 != 0 ||
+            (miso->number / 8) % 2 != instance_index) {
+            instance_index = NO_INSTANCE;
+        }
+    }
+
+    // TODO: Check to see if we're sharing the SPI with a native APA102.
+
+    if (instance_index > 1) {
+        mp_raise_ValueError(translate("Invalid pins"));
+    }
+
+    if (instance_index == 0) {
+        self->peripheral = spi0;
+    } else if (instance_index == 1) {
+        self->peripheral = spi1;
+    }
+
+    if ((spi_get_hw(self->peripheral)->cr1 & SPI_SSPCR1_SSE_BITS) != 0) {
+        mp_raise_ValueError(translate("SPI peripheral in use"));
+    }
+
+    spi_init(self->peripheral, 250000);
+
+    gpio_set_function(clock->number, GPIO_FUNC_SPI);
+    claim_pin(clock);
+    self->clock = clock;
+
+    self->MOSI = mosi;
+    if (mosi != NULL) {
+        gpio_set_function(mosi->number, GPIO_FUNC_SPI);
+        claim_pin(mosi);
+    }
+
+    self->MISO = miso;
+    if (miso != NULL) {
+        gpio_set_function(miso->number, GPIO_FUNC_SPI);
+        claim_pin(miso);
+    }
+}
+
+void common_hal_busio_spi_never_reset(busio_spi_obj_t *self) {
+    never_reset_spi[spi_get_index(self->peripheral)] = true;
+
+    common_hal_never_reset_pin(self->clock);
+    common_hal_never_reset_pin(self->MOSI);
+    common_hal_never_reset_pin(self->MISO);
+}
+
+bool common_hal_busio_spi_deinited(busio_spi_obj_t *self) {
+    return self->clock == NULL;
+}
+
+void common_hal_busio_spi_deinit(busio_spi_obj_t *self) {
+    if (common_hal_busio_spi_deinited(self)) {
+        return;
+    }
+    never_reset_spi[spi_get_index(self->peripheral)] = false;
+    spi_deinit(self->peripheral);
+
+    common_hal_reset_pin(self->clock);
+    common_hal_reset_pin(self->MOSI);
+    common_hal_reset_pin(self->MISO);
+    self->clock = NULL;
+}
+
+bool common_hal_busio_spi_configure(busio_spi_obj_t *self,
+        uint32_t baudrate, uint8_t polarity, uint8_t phase, uint8_t bits) {
+    if (baudrate == self->target_frequency &&
+        polarity == self->polarity &&
+        phase == self->phase &&
+        bits == self->bits) {
+        return true;
+    }
+
+    spi_set_format(self->peripheral, bits, polarity, phase, SPI_MSB_FIRST);
+
+    self->polarity = polarity;
+    self->phase = phase;
+    self->bits = bits;
+    self->target_frequency = baudrate;
+    self->real_frequency = spi_set_baudrate(self->peripheral, baudrate);
+
+    return true;
+}
+
+bool common_hal_busio_spi_try_lock(busio_spi_obj_t *self) {
+    bool grabbed_lock = false;
+    if (!self->has_lock) {
+        grabbed_lock = true;
+        self->has_lock = true;
+    }
+    return grabbed_lock;
+}
+
+bool common_hal_busio_spi_has_lock(busio_spi_obj_t *self) {
+    return self->has_lock;
+}
+
+void common_hal_busio_spi_unlock(busio_spi_obj_t *self) {
+    self->has_lock = false;
+}
+
+static bool _transfer(busio_spi_obj_t *self,
+    const uint8_t *data_out, size_t out_len,
+    uint8_t *data_in, size_t in_len) {
+    // Use DMA for large transfers if channels are available
+    const size_t dma_min_size_threshold = 32;
+    int chan_tx = -1;
+    int chan_rx = -1;
+    size_t len = MAX(out_len, in_len);
+    if (len >= dma_min_size_threshold) {
+        // Use two DMA channels to service the two FIFOs
+        chan_tx = dma_claim_unused_channel(false);
+        chan_rx = dma_claim_unused_channel(false);
+    }
+    bool use_dma = chan_rx >= 0 && chan_tx >= 0;
+    if (use_dma) {
+        dma_channel_config c = dma_channel_get_default_config(chan_tx);
+        channel_config_set_transfer_data_size(&c, DMA_SIZE_8);
+        channel_config_set_dreq(&c, spi_get_index(self->peripheral) ? DREQ_SPI1_TX : DREQ_SPI0_TX);
+        channel_config_set_read_increment(&c, out_len == len);
+        channel_config_set_write_increment(&c, false);
+        dma_channel_configure(chan_tx, &c,
+            &spi_get_hw(self->peripheral)->dr,
+            data_out,
+            len,
+            false);
+
+        c = dma_channel_get_default_config(chan_rx);
+        channel_config_set_transfer_data_size(&c, DMA_SIZE_8);
+        channel_config_set_dreq(&c, spi_get_index(self->peripheral) ? DREQ_SPI1_RX : DREQ_SPI0_RX);
+        channel_config_set_read_increment(&c, false);
+        channel_config_set_write_increment(&c, in_len == len);
+        dma_channel_configure(chan_rx, &c,
+            data_in,
+            &spi_get_hw(self->peripheral)->dr,
+            len,
+            false);
+
+        dma_start_channel_mask((1u << chan_rx) | (1u << chan_tx));
+        while (dma_channel_is_busy(chan_rx) || dma_channel_is_busy(chan_tx)) {
+            // TODO: We should idle here until we get a DMA interrupt or something else.
+            RUN_BACKGROUND_TASKS;
+            if (mp_hal_is_interrupted()) {
+                if (dma_channel_is_busy(chan_rx)) {
+                    dma_channel_abort(chan_rx);
+                }
+                if (dma_channel_is_busy(chan_tx)) {
+                    dma_channel_abort(chan_tx);
+                }
+                break;
+            }
+        }
+    }
+
+    // If we have claimed only one channel successfully, we should release immediately. This also
+    // releases the DMA after use_dma has been done.
+    if (chan_rx >= 0) {
+        dma_channel_unclaim(chan_rx);
+    }
+    if (chan_tx >= 0) {
+        dma_channel_unclaim(chan_tx);
+    }
+
+    if (!use_dma && !mp_hal_is_interrupted()) {
+        // Use software for small transfers, or if couldn't claim two DMA channels
+        // Never have more transfers in flight than will fit into the RX FIFO,
+        // else FIFO will overflow if this code is heavily interrupted.
+        const size_t fifo_depth = 8;
+        size_t rx_remaining = len;
+        size_t tx_remaining = len;
+
+        while (!mp_hal_is_interrupted() && (rx_remaining || tx_remaining)) {
+            if (tx_remaining && spi_is_writable(self->peripheral) && rx_remaining - tx_remaining < fifo_depth) {
+                spi_get_hw(self->peripheral)->dr = (uint32_t) *data_out;
+                // Increment only if the buffer is the transfer length. It's 1 otherwise.
+                if (out_len == len) {
+                    data_out++;
+                }
+                --tx_remaining;
+            }
+            if (rx_remaining && spi_is_readable(self->peripheral)) {
+                *data_in = (uint8_t) spi_get_hw(self->peripheral)->dr;
+                // Increment only if the buffer is the transfer length. It's 1 otherwise.
+                if (in_len == len) {
+                    data_in++;
+                }
+                --rx_remaining;
+            }
+            RUN_BACKGROUND_TASKS;
+        }
+    }
+    return true;
+}
+
+bool common_hal_busio_spi_write(busio_spi_obj_t *self,
+        const uint8_t *data, size_t len) {
+    uint32_t data_in;
+    return _transfer(self, data, len, (uint8_t*) &data_in, MIN(len, 4));
+}
+
+bool common_hal_busio_spi_read(busio_spi_obj_t *self,
+        uint8_t *data, size_t len, uint8_t write_value) {
+    uint32_t data_out = write_value << 24 | write_value << 16 | write_value << 8 | write_value;
+    return _transfer(self, (const uint8_t*) &data_out, MIN(4, len), data, len);
+}
+
+bool common_hal_busio_spi_transfer(busio_spi_obj_t *self, const uint8_t *data_out, uint8_t *data_in, size_t len) {
+    return _transfer(self, data_out, len, data_in, len);
+}
+
+uint32_t common_hal_busio_spi_get_frequency(busio_spi_obj_t* self) {
+    return self->real_frequency;
+}
+
+uint8_t common_hal_busio_spi_get_phase(busio_spi_obj_t* self) {
+    return self->phase;
+}
+
+uint8_t common_hal_busio_spi_get_polarity(busio_spi_obj_t* self) {
+    return self->polarity;
+}

ports/raspberrypi/common-hal/busio/SPI.h

@@ -0,0 +1,52 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_SPI_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_SPI_H
+
+#include "common-hal/microcontroller/Pin.h"
+
+#include "py/obj.h"
+
+#include "src/rp2_common/hardware_spi/include/hardware/spi.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    spi_inst_t * peripheral;
+    bool has_lock;
+    const mcu_pin_obj_t* clock;
+    const mcu_pin_obj_t* MOSI;
+    const mcu_pin_obj_t* MISO;
+    uint32_t target_frequency;
+    int32_t real_frequency;
+    uint8_t polarity;
+    uint8_t phase;
+    uint8_t bits;
+} busio_spi_obj_t;
+
+void reset_spi(void);
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_SPI_H

ports/raspberrypi/common-hal/busio/UART.c

@@ -0,0 +1,403 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/microcontroller/__init__.h"
+#include "shared-bindings/busio/UART.h"
+
+#include "mpconfigport.h"
+#include "lib/utils/interrupt_char.h"
+#include "py/gc.h"
+#include "py/mperrno.h"
+#include "py/runtime.h"
+#include "py/stream.h"
+#include "supervisor/shared/translate.h"
+#include "supervisor/shared/tick.h"
+
+#define UART_DEBUG(...) (void)0
+// #define UART_DEBUG(...) mp_printf(&mp_plat_print __VA_OPT__(,) __VA_ARGS__)
+
+// Do-nothing callback needed so that usart_async code will enable rx interrupts.
+// See comment below re usart_async_register_callback()
+// static void usart_async_rxc_callback(const struct usart_async_descriptor *const descr) {
+//     // Nothing needs to be done by us.
+// }
+
+#define NO_PIN 0xff
+
+void common_hal_busio_uart_construct(busio_uart_obj_t *self,
+    const mcu_pin_obj_t * tx, const mcu_pin_obj_t * rx,
+    const mcu_pin_obj_t * rts, const mcu_pin_obj_t * cts,
+    const mcu_pin_obj_t * rs485_dir, bool rs485_invert,
+    uint32_t baudrate, uint8_t bits, busio_uart_parity_t parity, uint8_t stop,
+    mp_float_t timeout, uint16_t receiver_buffer_size, byte* receiver_buffer,
+    bool sigint_enabled) {
+
+//     Sercom* sercom = NULL;
+//     uint8_t sercom_index = 255; // Unset index
+//     uint32_t rx_pinmux = 0;
+//     uint8_t rx_pad = 255; // Unset pad
+//     uint32_t tx_pinmux = 0;
+//     uint8_t tx_pad = 255; // Unset pad
+
+//     if ((rts != NULL) || (cts != NULL) || (rs485_dir != NULL) || (rs485_invert)) {
+//         mp_raise_ValueError(translate("RTS/CTS/RS485 Not yet supported on this device"));
+//     }
+
+//     if (bits > 8) {
+//         mp_raise_NotImplementedError(translate("bytes > 8 bits not supported"));
+//     }
+
+//     bool have_tx = tx != NULL;
+//     bool have_rx = rx != NULL;
+//     if (!have_tx && !have_rx) {
+//         mp_raise_ValueError(translate("tx and rx cannot both be None"));
+//     }
+
+//     self->baudrate = baudrate;
+//     self->character_bits = bits;
+//     self->timeout_ms = timeout * 1000;
+
+//     // This assignment is only here because the usart_async routines take a *const argument.
+//     struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc;
+
+//     for (int i = 0; i < NUM_SERCOMS_PER_PIN; i++) {
+//         Sercom* potential_sercom = NULL;
+//         if (have_tx) {
+//             sercom_index = tx->sercom[i].index;
+//             if (sercom_index >= SERCOM_INST_NUM) {
+//                 continue;
+//             }
+//             potential_sercom = sercom_insts[sercom_index];
+// #ifdef SAMD21
+// 	    if (potential_sercom->USART.CTRLA.bit.ENABLE != 0 ||
+//                 !(tx->sercom[i].pad == 0 ||
+//                   tx->sercom[i].pad == 2)) {
+//                 continue;
+//             }
+// #endif
+// #ifdef SAM_D5X_E5X
+// 	    if (potential_sercom->USART.CTRLA.bit.ENABLE != 0 ||
+//                 !(tx->sercom[i].pad == 0)) {
+//                 continue;
+//             }
+// #endif
+//             tx_pinmux = PINMUX(tx->number, (i == 0) ? MUX_C : MUX_D);
+//             tx_pad = tx->sercom[i].pad;
+//             if (rx == NULL) {
+//                 sercom = potential_sercom;
+//                 break;
+//             }
+//         }
+//         for (int j = 0; j < NUM_SERCOMS_PER_PIN; j++) {
+//             if (((!have_tx && rx->sercom[j].index < SERCOM_INST_NUM &&
+//                   sercom_insts[rx->sercom[j].index]->USART.CTRLA.bit.ENABLE == 0) ||
+//                  sercom_index == rx->sercom[j].index) &&
+//                 rx->sercom[j].pad != tx_pad) {
+//                 rx_pinmux = PINMUX(rx->number, (j == 0) ? MUX_C : MUX_D);
+//                 rx_pad = rx->sercom[j].pad;
+//                 sercom = sercom_insts[rx->sercom[j].index];
+//                 sercom_index = rx->sercom[j].index;
+//                 break;
+//             }
+//         }
+//         if (sercom != NULL) {
+//             break;
+//         }
+//     }
+//     if (sercom == NULL) {
+//         mp_raise_ValueError(translate("Invalid pins"));
+//     }
+//     if (!have_tx) {
+//         tx_pad = 0;
+//         if (rx_pad == 0) {
+//             tx_pad = 2;
+//         }
+//     }
+//     if (!have_rx) {
+//         rx_pad = (tx_pad + 1) % 4;
+//     }
+
+//     // Set up clocks on SERCOM.
+//     samd_peripherals_sercom_clock_init(sercom, sercom_index);
+
+//     if (rx && receiver_buffer_size > 0) {
+//         self->buffer_length = receiver_buffer_size;
+//         // Initially allocate the UART's buffer in the long-lived part of the
+//         // heap.  UARTs are generally long-lived objects, but the "make long-
+//         // lived" machinery is incapable of moving internal pointers like
+//         // self->buffer, so do it manually.  (However, as long as internal
+//         // pointers like this are NOT moved, allocating the buffer
+//         // in the long-lived pool is not strictly necessary)
+//         self->buffer = (uint8_t *) gc_alloc(self->buffer_length * sizeof(uint8_t), false, true);
+//         if (self->buffer == NULL) {
+//             common_hal_busio_uart_deinit(self);
+//             mp_raise_msg_varg(&mp_type_MemoryError, translate("Failed to allocate RX buffer of %d bytes"), self->buffer_length * sizeof(uint8_t));
+//         }
+//     } else {
+//         self->buffer_length = 0;
+//         self->buffer = NULL;
+//     }
+
+//     if (usart_async_init(usart_desc_p, sercom, self->buffer, self->buffer_length, NULL) != ERR_NONE) {
+//         mp_raise_ValueError(translate("Could not initialize UART"));
+//     }
+
+//     // usart_async_init() sets a number of defaults based on a prototypical SERCOM
+//     // which don't necessarily match what we need. After calling it, set the values
+//     // specific to this instantiation of UART.
+
+//     // Set pads computed for this SERCOM.
+//     // TXPO:
+//     // 0x0: TX pad 0; no RTS/CTS
+//     // 0x1: TX pad 2; no RTS/CTS
+//     // 0x2: TX pad 0; RTS: pad 2, CTS: pad 3 (not used by us right now)
+//     // So divide by 2 to map pad to value.
+//     // RXPO:
+//     // 0x0: RX pad 0
+//     // 0x1: RX pad 1
+//     // 0x2: RX pad 2
+//     // 0x3: RX pad 3
+
+//     // Doing a group mask and set of the registers saves 60 bytes over setting the bitfields individually.
+
+//     sercom->USART.CTRLA.reg &= ~(SERCOM_USART_CTRLA_TXPO_Msk |
+//                                  SERCOM_USART_CTRLA_RXPO_Msk |
+//                                  SERCOM_USART_CTRLA_FORM_Msk);
+//     sercom->USART.CTRLA.reg |= SERCOM_USART_CTRLA_TXPO(tx_pad / 2) |
+//                                SERCOM_USART_CTRLA_RXPO(rx_pad) |
+//                                (parity == BUSIO_UART_PARITY_NONE ? 0 : SERCOM_USART_CTRLA_FORM(1));
+
+//     // Enable tx and/or rx based on whether the pins were specified.
+//     // CHSIZE is 0 for 8 bits, 5, 6, 7 for 5, 6, 7 bits. 1 for 9 bits, but we don't support that.
+//     sercom->USART.CTRLB.reg &= ~(SERCOM_USART_CTRLB_TXEN |
+//                                  SERCOM_USART_CTRLB_RXEN |
+//                                  SERCOM_USART_CTRLB_PMODE |
+//                                  SERCOM_USART_CTRLB_SBMODE |
+//                                  SERCOM_USART_CTRLB_CHSIZE_Msk);
+//     sercom->USART.CTRLB.reg |= (have_tx ? SERCOM_USART_CTRLB_TXEN : 0) |
+//                                (have_rx ? SERCOM_USART_CTRLB_RXEN : 0) |
+//                                (parity == BUSIO_UART_PARITY_ODD ? SERCOM_USART_CTRLB_PMODE : 0) |
+//                                (stop > 1 ? SERCOM_USART_CTRLB_SBMODE : 0) |
+//                                SERCOM_USART_CTRLB_CHSIZE(bits % 8);
+
+//     // Set baud rate
+//     common_hal_busio_uart_set_baudrate(self, baudrate);
+
+//     // Turn on rx interrupt handling. The UART async driver has its own set of internal callbacks,
+//     // which are set up by uart_async_init(). These in turn can call user-specified callbacks.
+//     // In fact, the actual interrupts are not enabled unless we set up a user-specified callback.
+//     // This is confusing. It's explained in the Atmel START User Guide -> Implementation Description ->
+//     // Different read function behavior in some asynchronous drivers. As of this writing:
+//     // http://start.atmel.com/static/help/index.html?GUID-79201A5A-226F-4FBB-B0B8-AB0BE0554836
+//     // Look at the ASFv4 code example for async USART.
+//     usart_async_register_callback(usart_desc_p, USART_ASYNC_RXC_CB, usart_async_rxc_callback);
+
+
+//     if (have_tx) {
+//         gpio_set_pin_direction(tx->number, GPIO_DIRECTION_OUT);
+//         gpio_set_pin_pull_mode(tx->number, GPIO_PULL_OFF);
+//         gpio_set_pin_function(tx->number, tx_pinmux);
+//         self->tx_pin  = tx->number;
+//         claim_pin(tx);
+//     } else {
+//         self->tx_pin = NO_PIN;
+//     }
+
+//     if (have_rx) {
+//         gpio_set_pin_direction(rx->number, GPIO_DIRECTION_IN);
+//         gpio_set_pin_pull_mode(rx->number, GPIO_PULL_OFF);
+//         gpio_set_pin_function(rx->number, rx_pinmux);
+//         self->rx_pin  = rx->number;
+//         claim_pin(rx);
+//     } else {
+//         self->rx_pin = NO_PIN;
+//     }
+
+//     usart_async_enable(usart_desc_p);
+}
+
+bool common_hal_busio_uart_deinited(busio_uart_obj_t *self) {
+    return self->rx_pin == NO_PIN && self->tx_pin == NO_PIN;
+}
+
+void common_hal_busio_uart_deinit(busio_uart_obj_t *self) {
+    if (common_hal_busio_uart_deinited(self)) {
+        return;
+    }
+    // This assignment is only here because the usart_async routines take a *const argument.
+    // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc;
+    // usart_async_disable(usart_desc_p);
+    // usart_async_deinit(usart_desc_p);
+    reset_pin_number(self->rx_pin);
+    reset_pin_number(self->tx_pin);
+    self->rx_pin = NO_PIN;
+    self->tx_pin = NO_PIN;
+}
+
+// Read characters.
+size_t common_hal_busio_uart_read(busio_uart_obj_t *self, uint8_t *data, size_t len, int *errcode) {
+    if (self->rx_pin == NO_PIN) {
+        mp_raise_ValueError(translate("No RX pin"));
+    }
+
+    // This assignment is only here because the usart_async routines take a *const argument.
+    // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc;
+
+    if (len == 0) {
+        // Nothing to read.
+        return 0;
+    }
+
+    // struct io_descriptor *io;
+    // usart_async_get_io_descriptor(usart_desc_p, &io);
+
+    size_t total_read = 0;
+    // uint64_t start_ticks = supervisor_ticks_ms64();
+
+    // // Busy-wait until timeout or until we've read enough chars.
+    // while (supervisor_ticks_ms64() - start_ticks <= self->timeout_ms) {
+    //     // Read as many chars as we can right now, up to len.
+    //     size_t num_read = io_read(io, data, len);
+
+    //     // Advance pointer in data buffer, and decrease how many chars left to read.
+    //     data += num_read;
+    //     len -= num_read;
+    //     total_read += num_read;
+    //     if (len == 0) {
+    //         // Don't need to read any more: data buf is full.
+    //         break;
+    //     }
+    //     if (num_read > 0) {
+    //         // Reset the timeout on every character read.
+    //         start_ticks = supervisor_ticks_ms64();
+    //     }
+    //     RUN_BACKGROUND_TASKS;
+    //     // Allow user to break out of a timeout with a KeyboardInterrupt.
+    //     if (mp_hal_is_interrupted()) {
+    //         break;
+    //     }
+    //     // If we are zero timeout, make sure we don't loop again (in the event
+    //     // we read in under 1ms)
+    //     if (self->timeout_ms == 0) {
+    //         break;
+    //     }
+    // }
+
+    // if (total_read == 0) {
+    //     *errcode = EAGAIN;
+    //     return MP_STREAM_ERROR;
+    // }
+
+    return total_read;
+}
+
+// Write characters.
+size_t common_hal_busio_uart_write(busio_uart_obj_t *self, const uint8_t *data, size_t len, int *errcode) {
+    if (self->tx_pin == NO_PIN) {
+        mp_raise_ValueError(translate("No TX pin"));
+    }
+
+    // This assignment is only here because the usart_async routines take a *const argument.
+    // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc;
+
+    // struct io_descriptor *io;
+    // usart_async_get_io_descriptor(usart_desc_p, &io);
+
+    // // Start writing characters. This is non-blocking and will
+    // // return immediately after setting up the write.
+    // if (io_write(io, data, len) < 0) {
+    //     *errcode = MP_EAGAIN;
+    //     return MP_STREAM_ERROR;
+    // }
+
+    // // Busy-wait until all characters transmitted.
+    // struct usart_async_status async_status;
+    // while (true) {
+    //     usart_async_get_status(usart_desc_p, &async_status);
+    //     if (async_status.txcnt >= len) {
+    //         break;
+    //     }
+    //     RUN_BACKGROUND_TASKS;
+    // }
+
+    return len;
+}
+
+uint32_t common_hal_busio_uart_get_baudrate(busio_uart_obj_t *self) {
+    return self->baudrate;
+}
+
+void common_hal_busio_uart_set_baudrate(busio_uart_obj_t *self, uint32_t baudrate) {
+    // This assignment is only here because the usart_async routines take a *const argument.
+    // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc;
+    // usart_async_set_baud_rate(usart_desc_p,
+    //                           // Samples and ARITHMETIC vs FRACTIONAL must correspond to USART_SAMPR in
+    //                           // hpl_sercom_config.h.
+    //                           _usart_async_calculate_baud_rate(baudrate,  // e.g. 9600 baud
+    //                                                            PROTOTYPE_SERCOM_USART_ASYNC_CLOCK_FREQUENCY,
+    //                                                            16,   // samples
+    //                                                            USART_BAUDRATE_ASYNCH_ARITHMETIC,
+    //                                                            0  // fraction - not used for ARITHMETIC
+    //                                                            ));
+    self->baudrate = baudrate;
+}
+
+mp_float_t common_hal_busio_uart_get_timeout(busio_uart_obj_t *self) {
+    return (mp_float_t) (self->timeout_ms / 1000.0f);
+}
+
+void common_hal_busio_uart_set_timeout(busio_uart_obj_t *self, mp_float_t timeout) {
+    self->timeout_ms = timeout * 1000;
+}
+
+uint32_t common_hal_busio_uart_rx_characters_available(busio_uart_obj_t *self) {
+    // This assignment is only here because the usart_async routines take a *const argument.
+    // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc;
+    // struct usart_async_status async_status;
+    // usart_async_get_status(usart_desc_p, &async_status);
+    // return async_status.rxcnt;
+    return 0;
+}
+
+void common_hal_busio_uart_clear_rx_buffer(busio_uart_obj_t *self) {
+    // This assignment is only here because the usart_async routines take a *const argument.
+    // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc;
+    // usart_async_flush_rx_buffer(usart_desc_p);
+
+}
+
+// True if there are no characters still to be written.
+bool common_hal_busio_uart_ready_to_tx(busio_uart_obj_t *self) {
+    if (self->tx_pin == NO_PIN) {
+        return false;
+    }
+    return false;
+    // // This assignment is only here because the usart_async routines take a *const argument.
+    // struct usart_async_descriptor * const usart_desc_p = (struct usart_async_descriptor * const) &self->usart_desc;
+    // struct usart_async_status async_status;
+    // usart_async_get_status(usart_desc_p, &async_status);
+    // return !(async_status.flags & USART_ASYNC_STATUS_BUSY);
+}

ports/raspberrypi/common-hal/busio/UART.h

@@ -0,0 +1,47 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_UART_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_UART_H
+
+#include "common-hal/microcontroller/Pin.h"
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    // struct usart_async_descriptor usart_desc;
+    uint8_t rx_pin;
+    uint8_t tx_pin;
+    uint8_t character_bits;
+    bool rx_error;
+    uint32_t baudrate;
+    uint32_t timeout_ms;
+    uint32_t buffer_length;
+    uint8_t* buffer;
+} busio_uart_obj_t;
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_BUSIO_UART_H

ports/raspberrypi/common-hal/busio/__init__.c

@@ -0,0 +1 @@
+// No busio module functions.

ports/raspberrypi/common-hal/digitalio/DigitalInOut.c

@@ -0,0 +1,157 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "py/runtime.h"
+#include "py/mphal.h"
+
+#include "common-hal/microcontroller/Pin.h"
+#include "shared-bindings/digitalio/DigitalInOut.h"
+#include "supervisor/shared/translate.h"
+
+#include "src/rp2_common/hardware_gpio/include/hardware/gpio.h"
+
+digitalinout_result_t common_hal_digitalio_digitalinout_construct(
+        digitalio_digitalinout_obj_t* self, const mcu_pin_obj_t* pin) {
+    claim_pin(pin);
+    self->pin = pin;
+    self->output = false;
+    self->open_drain = false;
+
+    gpio_init(pin->number);
+    return DIGITALINOUT_OK;
+}
+
+void common_hal_digitalio_digitalinout_never_reset(
+        digitalio_digitalinout_obj_t *self) {
+    never_reset_pin_number(self->pin->number);
+}
+
+bool common_hal_digitalio_digitalinout_deinited(digitalio_digitalinout_obj_t* self) {
+    return self->pin == NULL;
+}
+
+void common_hal_digitalio_digitalinout_deinit(digitalio_digitalinout_obj_t* self) {
+    if (common_hal_digitalio_digitalinout_deinited(self)) {
+        return;
+    }
+    reset_pin_number(self->pin->number);
+    self->pin = NULL;
+}
+
+void common_hal_digitalio_digitalinout_switch_to_input(
+        digitalio_digitalinout_obj_t* self, digitalio_pull_t pull) {
+    self->output = false;
+    // This also sets direction to input.
+    common_hal_digitalio_digitalinout_set_pull(self, pull);
+}
+
+digitalinout_result_t common_hal_digitalio_digitalinout_switch_to_output(
+        digitalio_digitalinout_obj_t* self, bool value,
+        digitalio_drive_mode_t drive_mode) {
+    const uint8_t pin = self->pin->number;
+    gpio_set_dir(pin, GPIO_OUT);
+    // Turn on "strong" pin driving (more current available). See DRVSTR doc in datasheet.
+    // hri_port_set_PINCFG_DRVSTR_bit(PORT, (enum gpio_port)GPIO_PORT(pin), GPIO_PIN(pin));
+
+    self->output = true;
+    common_hal_digitalio_digitalinout_set_drive_mode(self, drive_mode);
+    common_hal_digitalio_digitalinout_set_value(self, value);
+    return DIGITALINOUT_OK;
+}
+
+digitalio_direction_t common_hal_digitalio_digitalinout_get_direction(
+        digitalio_digitalinout_obj_t* self) {
+    return self->output ? DIRECTION_OUTPUT : DIRECTION_INPUT;
+}
+
+void common_hal_digitalio_digitalinout_set_value(
+        digitalio_digitalinout_obj_t* self, bool value) {
+    const uint8_t pin = self->pin->number;
+    if (self->open_drain) {
+        gpio_set_dir(pin, value ? GPIO_IN : GPIO_OUT);
+    } else {
+        gpio_put(pin, value);
+    }
+}
+
+bool common_hal_digitalio_digitalinout_get_value(
+        digitalio_digitalinout_obj_t* self) {
+    return gpio_get(self->pin->number);
+}
+
+digitalinout_result_t common_hal_digitalio_digitalinout_set_drive_mode(
+        digitalio_digitalinout_obj_t* self,
+        digitalio_drive_mode_t drive_mode) {
+    const uint8_t pin = self->pin->number;
+    bool value = common_hal_digitalio_digitalinout_get_value(self);
+    self->open_drain = drive_mode == DRIVE_MODE_OPEN_DRAIN;
+    if (self->open_drain) {
+        gpio_put(pin, false);
+    }
+    // True is implemented differently between modes so reset the value to make
+    // sure it's correct for the new mode.
+    if (value) {
+        common_hal_digitalio_digitalinout_set_value(self, value);
+    }
+    return DIGITALINOUT_OK;
+}
+
+digitalio_drive_mode_t common_hal_digitalio_digitalinout_get_drive_mode(
+        digitalio_digitalinout_obj_t* self) {
+    if (self->open_drain) {
+        return DRIVE_MODE_OPEN_DRAIN;
+    } else {
+        return DRIVE_MODE_PUSH_PULL;
+    }
+}
+
+void common_hal_digitalio_digitalinout_set_pull(
+        digitalio_digitalinout_obj_t* self, digitalio_pull_t pull) {
+    const uint8_t pin = self->pin->number;
+    gpio_set_pulls(pin, pull == PULL_UP, pull == PULL_DOWN);
+    gpio_set_dir(pin, GPIO_IN);
+}
+
+digitalio_pull_t common_hal_digitalio_digitalinout_get_pull(
+        digitalio_digitalinout_obj_t* self) {
+    // uint32_t pin = self->pin->number;
+    // if (self->output) {
+    //     mp_raise_AttributeError(translate("Cannot get pull while in output mode"));
+    //     return PULL_NONE;
+    // } else {
+    //     if (hri_port_get_PINCFG_PULLEN_bit(PORT, GPIO_PORT(pin), GPIO_PIN(pin)) == 0) {
+    //         return PULL_NONE;
+    //     } if (hri_port_get_OUT_reg(PORT, GPIO_PORT(pin), 1U << GPIO_PIN(pin)) > 0) {
+    //         return PULL_UP;
+    //     } else {
+    //         return PULL_DOWN;
+    //     }
+    // }
+    return PULL_NONE;
+}

ports/raspberrypi/common-hal/digitalio/DigitalInOut.h

@@ -0,0 +1,40 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_DIGITALIO_DIGITALINOUT_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_DIGITALIO_DIGITALINOUT_H
+
+#include "common-hal/microcontroller/Pin.h"
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    const mcu_pin_obj_t * pin;
+    bool output;
+    bool open_drain;
+} digitalio_digitalinout_obj_t;
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_DIGITALIO_DIGITALINOUT_H

ports/raspberrypi/common-hal/digitalio/__init__.c

@@ -0,0 +1 @@
+// No digitalio module functions.

ports/raspberrypi/common-hal/displayio/ParallelBus.c

@@ -0,0 +1,68 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/displayio/ParallelBus.h"
+
+#include <stdint.h>
+
+#include "common-hal/microcontroller/Pin.h"
+#include "py/runtime.h"
+#include "shared-bindings/digitalio/DigitalInOut.h"
+#include "shared-bindings/microcontroller/__init__.h"
+
+void common_hal_displayio_parallelbus_construct(displayio_parallelbus_obj_t* self,
+    const mcu_pin_obj_t* data0, const mcu_pin_obj_t* command, const mcu_pin_obj_t* chip_select,
+    const mcu_pin_obj_t* write, const mcu_pin_obj_t* read, const mcu_pin_obj_t* reset) {
+
+    mp_raise_NotImplementedError(translate("ParallelBus not yet supported"));
+    // TODO: Implement with PIO and DMA.
+}
+
+void common_hal_displayio_parallelbus_deinit(displayio_parallelbus_obj_t* self) {
+
+}
+
+bool common_hal_displayio_parallelbus_reset(mp_obj_t obj) {
+	return false;
+}
+
+bool common_hal_displayio_parallelbus_bus_free(mp_obj_t obj) {
+    return false;
+}
+
+bool common_hal_displayio_parallelbus_begin_transaction(mp_obj_t obj) {
+
+    return false;
+}
+
+void common_hal_displayio_parallelbus_send(mp_obj_t obj, display_byte_type_t byte_type,
+        display_chip_select_behavior_t chip_select, const uint8_t *data, uint32_t data_length) {
+
+}
+
+void common_hal_displayio_parallelbus_end_transaction(mp_obj_t obj) {
+
+}

ports/raspberrypi/common-hal/displayio/ParallelBus.h

@@ -0,0 +1,36 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_DISPLAYIO_PARALLELBUS_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_DISPLAYIO_PARALLELBUS_H
+
+#include "common-hal/digitalio/DigitalInOut.h"
+
+typedef struct {
+    mp_obj_base_t base;
+} displayio_parallelbus_obj_t;
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_DISPLAYIO_PARALLELBUS_H

ports/raspberrypi/common-hal/microcontroller/Pin.c

@@ -0,0 +1,190 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/runtime.h"
+
+#include "shared-bindings/microcontroller/Pin.h"
+
+#include "supervisor/shared/rgb_led_status.h"
+
+#include "src/rp2_common/hardware_gpio/include/hardware/gpio.h"
+
+#ifdef MICROPY_HW_NEOPIXEL
+bool neopixel_in_use;
+#endif
+#ifdef MICROPY_HW_APA102_MOSI
+bool apa102_sck_in_use;
+bool apa102_mosi_in_use;
+#endif
+#ifdef SPEAKER_ENABLE_PIN
+bool speaker_enable_in_use;
+#endif
+
+STATIC uint32_t never_reset_pins;
+
+void reset_all_pins(void) {
+    for (size_t i = 0; i < 30; i++) {
+        if ((never_reset_pins & (1 << i)) != 0) {
+            continue;
+        }
+        reset_pin_number(i);
+    }
+}
+
+void never_reset_pin_number(uint8_t pin_number) {
+    if (pin_number >= 32) {
+        return;
+    }
+
+    never_reset_pins |= 1 << pin_number;
+}
+
+void reset_pin_number(uint8_t pin_number) {
+    if (pin_number >= 32
+#if TUD_OPT_RP2040_USB_DEVICE_ENUMERATION_FIX
+    // Pin 15 is used for Errata so we don't mess with it.
+        || pin_number == 15
+#endif
+        ) {
+        return;
+    }
+
+    never_reset_pins &= ~(1 << pin_number);
+
+    // We are very aggressive in shutting down the pad fully. Both pulls are
+    // disabled and both buffers are as well.
+    gpio_init(pin_number);
+    hw_clear_bits(&padsbank0_hw->io[pin_number], PADS_BANK0_GPIO0_IE_BITS |
+                                                 PADS_BANK0_GPIO0_PUE_BITS |
+                                                 PADS_BANK0_GPIO0_PDE_BITS);
+    hw_set_bits(&padsbank0_hw->io[pin_number], PADS_BANK0_GPIO0_OD_BITS);
+
+    #ifdef MICROPY_HW_NEOPIXEL
+    if (pin_number == MICROPY_HW_NEOPIXEL->number) {
+        neopixel_in_use = false;
+        rgb_led_status_init();
+        return;
+    }
+    #endif
+    #ifdef MICROPY_HW_APA102_MOSI
+    if (pin_number == MICROPY_HW_APA102_MOSI->number ||
+        pin_number == MICROPY_HW_APA102_SCK->number) {
+        apa102_mosi_in_use = apa102_mosi_in_use && pin_number != MICROPY_HW_APA102_MOSI->number;
+        apa102_sck_in_use = apa102_sck_in_use && pin_number != MICROPY_HW_APA102_SCK->number;
+        if (!apa102_sck_in_use && !apa102_mosi_in_use) {
+            rgb_led_status_init();
+        }
+        return;
+    }
+    #endif
+
+    #ifdef SPEAKER_ENABLE_PIN
+    if (pin_number == SPEAKER_ENABLE_PIN->number) {
+        speaker_enable_in_use = false;
+    }
+    #endif
+}
+
+void common_hal_never_reset_pin(const mcu_pin_obj_t* pin) {
+    never_reset_pin_number(pin->number);
+}
+
+void common_hal_reset_pin(const mcu_pin_obj_t* pin) {
+    reset_pin_number(pin->number);
+}
+
+void claim_pin(const mcu_pin_obj_t* pin) {
+    #ifdef MICROPY_HW_NEOPIXEL
+    if (pin == MICROPY_HW_NEOPIXEL) {
+        neopixel_in_use = true;
+    }
+    #endif
+    #ifdef MICROPY_HW_APA102_MOSI
+    if (pin == MICROPY_HW_APA102_MOSI) {
+        apa102_mosi_in_use = true;
+    }
+    if (pin == MICROPY_HW_APA102_SCK) {
+        apa102_sck_in_use = true;
+    }
+    #endif
+
+    #ifdef SPEAKER_ENABLE_PIN
+    if (pin == SPEAKER_ENABLE_PIN) {
+        speaker_enable_in_use = true;
+    }
+    #endif
+}
+
+bool pin_number_is_free(uint8_t pin_number) {
+    if (pin_number >= 30) {
+        return false;
+    }
+#if TUD_OPT_RP2040_USB_DEVICE_ENUMERATION_FIX
+    // Pin 15 is used for Errata so we don't mess with it.
+    if (pin_number == 15) {
+        return true;
+    }
+#endif
+    uint32_t pad_state = padsbank0_hw->io[pin_number];
+    return (pad_state & PADS_BANK0_GPIO0_IE_BITS) == 0 &&
+           (pad_state & PADS_BANK0_GPIO0_OD_BITS) != 0;
+}
+
+bool common_hal_mcu_pin_is_free(const mcu_pin_obj_t* pin) {
+    #ifdef MICROPY_HW_NEOPIXEL
+    if (pin == MICROPY_HW_NEOPIXEL) {
+        return !neopixel_in_use;
+    }
+    #endif
+    #ifdef MICROPY_HW_APA102_MOSI
+    if (pin == MICROPY_HW_APA102_MOSI) {
+        return !apa102_mosi_in_use;
+    }
+    if (pin == MICROPY_HW_APA102_SCK) {
+        return !apa102_sck_in_use;
+    }
+    #endif
+
+    #ifdef SPEAKER_ENABLE_PIN
+    if (pin == SPEAKER_ENABLE_PIN) {
+        return !speaker_enable_in_use;
+    }
+    #endif
+
+    return pin_number_is_free(pin->number);
+}
+
+uint8_t common_hal_mcu_pin_number(const mcu_pin_obj_t* pin) {
+    return pin->number;
+}
+
+void common_hal_mcu_pin_claim(const mcu_pin_obj_t* pin) {
+    return claim_pin(pin);
+}
+
+void common_hal_mcu_pin_reset_number(uint8_t pin_no) {
+    reset_pin_number(pin_no);
+}

ports/raspberrypi/common-hal/microcontroller/Pin.h

@@ -0,0 +1,53 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_MICROCONTROLLER_PIN_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_MICROCONTROLLER_PIN_H
+
+#include <assert.h>
+#include <stdint.h>
+
+#include <py/obj.h>
+
+#include "peripherals/pins.h"
+
+#ifdef MICROPY_HW_NEOPIXEL
+extern bool neopixel_in_use;
+#endif
+#ifdef MICROPY_HW_APA102_MOSI
+extern bool apa102_sck_in_use;
+extern bool apa102_mosi_in_use;
+#endif
+
+void reset_all_pins(void);
+// reset_pin_number takes the pin number instead of the pointer so that objects don't
+// need to store a full pointer.
+void reset_pin_number(uint8_t pin_number);
+void never_reset_pin_number(uint8_t pin_number);
+void claim_pin(const mcu_pin_obj_t* pin);
+bool pin_number_is_free(uint8_t pin_number);
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_MICROCONTROLLER_PIN_H

ports/raspberrypi/common-hal/microcontroller/Processor.c

@@ -0,0 +1,66 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <math.h>
+
+#include "py/mphal.h"
+#include "common-hal/microcontroller/Processor.h"
+#include "shared-bindings/microcontroller/ResetReason.h"
+
+#include "src/rp2_common/hardware_adc/include/hardware/adc.h"
+#include "src/rp2_common/hardware_clocks/include/hardware/clocks.h"
+
+float common_hal_mcu_processor_get_temperature(void) {
+    adc_init();
+    adc_set_temp_sensor_enabled(true);
+    adc_select_input(4);
+    uint16_t value = adc_read();
+    adc_set_temp_sensor_enabled(false);
+    float voltage = value * 3.3 / (1 << 12);
+    // TODO: turn the ADC back off
+    return 27 - (voltage - 0.706) / 0.001721;
+}
+
+float common_hal_mcu_processor_get_voltage(void) {
+    return 3.3f;
+}
+
+uint32_t common_hal_mcu_processor_get_frequency(void) {
+    return clock_get_hz(clk_sys);
+}
+
+void common_hal_mcu_processor_get_uid(uint8_t raw_id[]) {
+    // TODO: get the unique id from the flash. The chip itself doesn't have one.
+    // for (int i=0; i<4; i++) {
+    //     for (int k=0; k<4; k++) {
+    //         raw_id[4 * i + k] = (*(id_addresses[i]) >> k * 8) & 0xff;
+    //     }
+    // }
+}
+
+mcu_reset_reason_t common_hal_mcu_processor_get_reset_reason(void) {
+    return RESET_REASON_UNKNOWN;
+}

ports/raspberrypi/common-hal/microcontroller/Processor.h

@@ -0,0 +1,39 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_MICROCONTROLLER_PROCESSOR_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_MICROCONTROLLER_PROCESSOR_H
+
+#define COMMON_HAL_MCU_PROCESSOR_UID_LENGTH 16
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    // Stores no state currently.
+} mcu_processor_obj_t;
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_MICROCONTROLLER_PROCESSOR_H

ports/raspberrypi/common-hal/microcontroller/__init__.c

@@ -0,0 +1,148 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/mphal.h"
+#include "py/obj.h"
+#include "py/runtime.h"
+
+#include "common-hal/microcontroller/__init__.h"
+#if CIRCUITPY_NVM
+#include "shared-bindings/nvm/ByteArray.h"
+#endif
+#include "shared-bindings/microcontroller/__init__.h"
+#include "shared-bindings/microcontroller/Pin.h"
+#include "shared-bindings/microcontroller/Processor.h"
+#include "supervisor/shared/safe_mode.h"
+#include "supervisor/shared/translate.h"
+
+#include "src/rp2040/hardware_structs/include/hardware/structs/sio.h"
+#include "src/rp2_common/hardware_sync/include/hardware/sync.h"
+
+void common_hal_mcu_delay_us(uint32_t delay) {
+    mp_hal_delay_us(delay);
+}
+
+volatile uint32_t nesting_count = 0;
+void common_hal_mcu_disable_interrupts(void) {
+    // We don't use save_and_disable_interrupts() from the sdk because we don't want to worry about PRIMASK.
+    // This is what we do on the SAMD21 via CMSIS.
+    asm volatile ("cpsid i" : : : "memory");
+    __dmb();
+    nesting_count++;
+}
+
+void common_hal_mcu_enable_interrupts(void) {
+    if (nesting_count == 0) {
+        // reset_into_safe_mode(LOCKING_ERROR);
+    }
+    nesting_count--;
+    if (nesting_count > 0) {
+        return;
+    }
+    __dmb();
+    asm volatile ("cpsie i" : : : "memory");
+}
+
+void common_hal_mcu_on_next_reset(mcu_runmode_t runmode) {
+    if (runmode == RUNMODE_BOOTLOADER) {
+    } else {
+    }
+    if (runmode == RUNMODE_SAFE_MODE) {
+        safe_mode_on_next_reset(PROGRAMMATIC_SAFE_MODE);
+    }
+}
+
+void common_hal_mcu_reset(void) {
+}
+
+// The singleton microcontroller.Processor object, bound to microcontroller.cpu
+// It currently only has properties, and no state.
+static const mcu_processor_obj_t processor0 = {
+    .base = {
+        .type = &mcu_processor_type,
+    },
+};
+
+static const mcu_processor_obj_t processor1 = {
+    .base = {
+        .type = &mcu_processor_type,
+    },
+};
+
+const mp_rom_obj_tuple_t common_hal_mcu_processor_obj = {
+    {&mp_type_tuple},
+    CIRCUITPY_PROCESSOR_COUNT,
+    {
+        MP_ROM_PTR(&processor0),
+        MP_ROM_PTR(&processor1)
+    }
+};
+
+#if CIRCUITPY_NVM && CIRCUITPY_INTERNAL_NVM_SIZE > 0
+// The singleton nvm.ByteArray object.
+const nvm_bytearray_obj_t common_hal_mcu_nvm_obj = {
+    .base = {
+        .type = &nvm_bytearray_type,
+    },
+    .len = CIRCUITPY_INTERNAL_NVM_SIZE,
+    .start_address = (uint8_t*) (CIRCUITPY_INTERNAL_NVM_START_ADDR)
+};
+#endif
+
+// This maps MCU pin names to pin objects.
+const mp_rom_map_elem_t mcu_pin_global_dict_table[TOTAL_GPIO_COUNT] = {
+    { MP_ROM_QSTR(MP_QSTR_GPIO0), MP_ROM_PTR(&pin_GPIO0) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO1), MP_ROM_PTR(&pin_GPIO1) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO2), MP_ROM_PTR(&pin_GPIO2) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO3), MP_ROM_PTR(&pin_GPIO3) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO4), MP_ROM_PTR(&pin_GPIO4) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO5), MP_ROM_PTR(&pin_GPIO5) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO6), MP_ROM_PTR(&pin_GPIO6) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO7), MP_ROM_PTR(&pin_GPIO7) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO8), MP_ROM_PTR(&pin_GPIO8) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO9), MP_ROM_PTR(&pin_GPIO9) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO10), MP_ROM_PTR(&pin_GPIO10) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO11), MP_ROM_PTR(&pin_GPIO11) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO12), MP_ROM_PTR(&pin_GPIO12) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO13), MP_ROM_PTR(&pin_GPIO13) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO14), MP_ROM_PTR(&pin_GPIO14) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO15), MP_ROM_PTR(&pin_GPIO15) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO16), MP_ROM_PTR(&pin_GPIO16) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO17), MP_ROM_PTR(&pin_GPIO17) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO18), MP_ROM_PTR(&pin_GPIO18) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO19), MP_ROM_PTR(&pin_GPIO19) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO20), MP_ROM_PTR(&pin_GPIO20) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO21), MP_ROM_PTR(&pin_GPIO21) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO22), MP_ROM_PTR(&pin_GPIO22) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO23), MP_ROM_PTR(&pin_GPIO23) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO24), MP_ROM_PTR(&pin_GPIO24) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO25), MP_ROM_PTR(&pin_GPIO25) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO26), MP_ROM_PTR(&pin_GPIO26) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO27), MP_ROM_PTR(&pin_GPIO27) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO28), MP_ROM_PTR(&pin_GPIO28) },
+    { MP_ROM_QSTR(MP_QSTR_GPIO29), MP_ROM_PTR(&pin_GPIO29) },
+};
+MP_DEFINE_CONST_DICT(mcu_pin_globals, mcu_pin_global_dict_table);

ports/raspberrypi/common-hal/microcontroller/__init__.h

@@ -0,0 +1,36 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_MICROCONTROLLER___INIT___H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_MICROCONTROLLER___INIT___H
+
+#include "src/rp2040/hardware_regs/include/hardware/platform_defs.h"
+
+#define TOTAL_GPIO_COUNT NUM_BANK0_GPIOS
+
+extern const mp_rom_map_elem_t mcu_pin_global_dict_table[TOTAL_GPIO_COUNT];
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_MICROCONTROLLER___INIT___H

ports/raspberrypi/common-hal/neopixel_write/__init__.c

@@ -0,0 +1,95 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/neopixel_write/__init__.h"
+
+#include "bindings/rp2pio/StateMachine.h"
+#include "common-hal/rp2pio/StateMachine.h"
+#include "shared-bindings/microcontroller/__init__.h"
+
+#include "supervisor/port.h"
+
+uint64_t next_start_raw_ticks = 0;
+
+// NeoPixels are 800khz bit streams. Zeroes are 1/3 duty cycle (~416ns) and ones
+// are 2/3 duty cycle (~833ns). Each of the instructions below take 1/3 duty
+// cycle. The first two instructions always run while only one of the two final
+// instructions run per bit. We start with the low period because it can be
+// longer than 1/3 period while waiting for more data.
+const uint16_t neopixel_program[] = {
+// bitloop:
+//   out x 1        side 0 [1]; Side-set still takes place before instruction stalls
+    0x6121,
+//   jmp !x do_zero side 1 [1]; Branch on the bit we shifted out after 1/3 duty delay. Positive pulse
+    0x1123,
+// do_one:
+//   jmp  bitloop   side 1 [1]; Continue driving high, for a long pulse
+    0x1100,
+// do_zero:
+//   nop            side 0 [1]; Or drive low, for a short pulse
+    0xa142
+};
+
+const uint16_t init_program[] = {
+    0xe081
+};
+
+void common_hal_neopixel_write(const digitalio_digitalinout_obj_t* digitalinout, uint8_t *pixels, uint32_t num_bytes) {
+    // Set everything up.
+    rp2pio_statemachine_obj_t state_machine;
+
+    // TODO: Cache the state machine after we create it once. We'll need a way to
+    // change the pins then though.
+    uint8_t pin_number = digitalinout->pin->number;
+    bool ok = rp2pio_statemachine_construct(&state_machine,
+        neopixel_program, sizeof(neopixel_program) / sizeof(neopixel_program[0]),
+        800000 * 6, // 800 khz * 6 cycles per bit
+        init_program, 1,
+        NULL, 1,
+        NULL, 1,
+        digitalinout->pin, 1,
+        digitalinout->pin, 1,
+        1 << pin_number, true, false,
+        true, 8, false, // TX, auto pull every 8 bits. shift left to output msb first
+        false, 32, true, // RX setting we don't use
+        false); // claim pins
+    if (!ok) {
+        // Do nothing. Maybe bitbang?
+        return;
+    }
+
+    // Wait to make sure we don't append onto the last transmission. This should only be a tick or
+    // two.
+    while (port_get_raw_ticks(NULL) < next_start_raw_ticks) {}
+
+    common_hal_rp2pio_statemachine_write(&state_machine, pixels, num_bytes);
+
+    // Use a private deinit of the state machine that doesn't reset the pin.
+    rp2pio_statemachine_deinit(&state_machine, true);
+    gpio_init(digitalinout->pin->number);
+    // Update the next start.
+    next_start_raw_ticks = port_get_raw_ticks(NULL) + 1;
+}

ports/raspberrypi/common-hal/os/__init__.c

@@ -0,0 +1,62 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "genhdr/mpversion.h"
+#include "py/mpconfig.h"
+#include "py/objstr.h"
+#include "py/objtuple.h"
+#include "py/qstr.h"
+
+
+STATIC const qstr os_uname_info_fields[] = {
+    MP_QSTR_sysname, MP_QSTR_nodename,
+    MP_QSTR_release, MP_QSTR_version, MP_QSTR_machine
+};
+STATIC const MP_DEFINE_STR_OBJ(os_uname_info_sysname_obj, "rp2040");
+STATIC const MP_DEFINE_STR_OBJ(os_uname_info_nodename_obj, "rp2040");
+STATIC const MP_DEFINE_STR_OBJ(os_uname_info_release_obj, MICROPY_VERSION_STRING);
+STATIC const MP_DEFINE_STR_OBJ(os_uname_info_version_obj, MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE);
+STATIC const MP_DEFINE_STR_OBJ(os_uname_info_machine_obj, MICROPY_HW_BOARD_NAME " with " MICROPY_HW_MCU_NAME);
+
+
+STATIC MP_DEFINE_ATTRTUPLE(
+    os_uname_info_obj,
+    os_uname_info_fields,
+    5,
+    (mp_obj_t)&os_uname_info_sysname_obj,
+    (mp_obj_t)&os_uname_info_nodename_obj,
+    (mp_obj_t)&os_uname_info_release_obj,
+    (mp_obj_t)&os_uname_info_version_obj,
+    (mp_obj_t)&os_uname_info_machine_obj
+);
+
+mp_obj_t common_hal_os_uname(void) {
+    return (mp_obj_t)&os_uname_info_obj;
+}
+
+bool common_hal_os_urandom(uint8_t* buffer, uint32_t length) {
+    return false;
+}

ports/raspberrypi/common-hal/pwmio/PWMOut.c

@@ -0,0 +1,216 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdint.h>
+
+#include "py/runtime.h"
+#include "common-hal/pwmio/PWMOut.h"
+#include "shared-bindings/pwmio/PWMOut.h"
+#include "shared-bindings/microcontroller/Processor.h"
+
+#include "supervisor/shared/translate.h"
+
+#include "src/rp2040/hardware_regs/include/hardware/platform_defs.h"
+#include "src/rp2_common/hardware_clocks/include/hardware/clocks.h"
+#include "src/rp2_common/hardware_gpio/include/hardware/gpio.h"
+#include "src/rp2_common/hardware_pwm/include/hardware/pwm.h"
+
+uint32_t target_slice_frequencies[NUM_PWM_SLICES];
+uint32_t slice_fixed_frequency;
+
+#define CHANNELS_PER_SLICE 2
+static uint32_t channel_use;
+static uint32_t never_reset_channel;
+
+static uint32_t _mask(uint8_t slice, uint8_t channel) {
+    return 1 << (slice * CHANNELS_PER_SLICE + channel);
+}
+
+void common_hal_pwmio_pwmout_never_reset(pwmio_pwmout_obj_t *self) {
+    never_reset_channel |= _mask(self->slice, self->channel);
+
+    never_reset_pin_number(self->pin->number);
+}
+
+void common_hal_pwmio_pwmout_reset_ok(pwmio_pwmout_obj_t *self) {
+    never_reset_channel &= ~_mask(self->slice, self->channel);
+}
+
+void pwmout_reset(void) {
+    // Reset all slices
+    for (size_t slice = 0; slice < NUM_PWM_SLICES; slice++) {
+        bool reset = true;
+        for (size_t channel = 0; channel < CHANNELS_PER_SLICE; channel++) {
+            uint32_t channel_use_mask = _mask(slice, channel);
+            if ((never_reset_channel & channel_use_mask) != 0) {
+                reset = false;
+                continue;
+            }
+            channel_use &= ~channel_use_mask;
+        }
+        if (!reset) {
+            continue;
+        }
+        pwm_set_enabled(slice, false);
+        target_slice_frequencies[slice] = 0;
+        slice_fixed_frequency &= ~(1 << slice);
+    }
+}
+
+pwmout_result_t common_hal_pwmio_pwmout_construct(pwmio_pwmout_obj_t* self,
+                                                    const mcu_pin_obj_t* pin,
+                                                    uint16_t duty,
+                                                    uint32_t frequency,
+                                                    bool variable_frequency) {
+    self->pin = pin;
+    self->variable_frequency = variable_frequency;
+    self->duty_cycle = duty;
+
+    if (frequency == 0 || frequency > (common_hal_mcu_processor_get_frequency() / 2)) {
+        return PWMOUT_INVALID_FREQUENCY;
+    }
+
+    uint8_t slice = pwm_gpio_to_slice_num(pin->number);
+    uint8_t channel = pwm_gpio_to_channel(pin->number);
+    uint32_t channel_use_mask = _mask(slice, channel);
+
+    // Check the channel first.
+    if ((channel_use & channel_use_mask) != 0) {
+        return PWMOUT_ALL_TIMERS_ON_PIN_IN_USE;
+    }
+    // Now check if the slice is in use and if we can share with it.
+    if (target_slice_frequencies[slice] > 0) {
+        // If we want to change frequency then we can't share.
+        if (variable_frequency) {
+            return PWMOUT_ALL_TIMERS_ON_PIN_IN_USE;
+        }
+        // If the other user wants to change frequency then we can't share either.
+        if ((slice_fixed_frequency & (1 << slice)) != 0) {
+            return PWMOUT_ALL_TIMERS_ON_PIN_IN_USE;
+        }
+        // If we're both fixed frequency but we don't match target frequencies then we can't share.
+        if (target_slice_frequencies[slice] != frequency) {
+            return PWMOUT_ALL_TIMERS_ON_PIN_IN_USE;
+        }
+    }
+    self->slice = slice;
+    self->channel = channel;
+    channel_use |= channel_use_mask;
+    if (!variable_frequency) {
+        slice_fixed_frequency |= 1 << slice;
+    }
+
+    if (target_slice_frequencies[slice] != frequency) {
+        // Reset the counter and compare values.
+        pwm_hw->slice[slice].ctr = PWM_CH0_CTR_RESET;
+        common_hal_pwmio_pwmout_set_duty_cycle(self, duty);
+        common_hal_pwmio_pwmout_set_frequency(self, frequency);
+        pwm_set_enabled(slice, true);
+    } else {
+        common_hal_pwmio_pwmout_set_duty_cycle(self, duty);
+    }
+
+    // Connect to the pad last to avoid any glitches from changing settings.
+    gpio_set_function(pin->number, GPIO_FUNC_PWM);
+
+    return PWMOUT_OK;
+}
+
+bool common_hal_pwmio_pwmout_deinited(pwmio_pwmout_obj_t* self) {
+    return self->pin == NULL;
+}
+
+void common_hal_pwmio_pwmout_deinit(pwmio_pwmout_obj_t* self) {
+    if (common_hal_pwmio_pwmout_deinited(self)) {
+        return;
+    }
+    uint32_t channel_mask = _mask(self->slice, self->channel);
+    channel_use &= ~channel_mask;
+    never_reset_channel &= ~channel_mask;
+    uint32_t slice_mask = ((1 << CHANNELS_PER_SLICE) - 1) << (self->slice * CHANNELS_PER_SLICE + self->channel);
+    if ((channel_use & slice_mask) == 0) {
+        target_slice_frequencies[self->slice] = 0;
+        slice_fixed_frequency &= ~(1 << self->slice);
+        pwm_set_enabled(self->slice, false);
+    }
+
+    reset_pin_number(self->pin->number);
+    self->pin = NULL;
+}
+
+extern void common_hal_pwmio_pwmout_set_duty_cycle(pwmio_pwmout_obj_t* self, uint16_t duty) {
+    self->duty_cycle = duty;
+    uint16_t actual_duty = duty * self->top / ((1 << 16) - 1);
+    pwm_set_chan_level(self->slice, self->channel, actual_duty);
+}
+
+uint16_t common_hal_pwmio_pwmout_get_duty_cycle(pwmio_pwmout_obj_t* self) {
+    return self->duty_cycle;
+}
+
+void common_hal_pwmio_pwmout_set_frequency(pwmio_pwmout_obj_t* self, uint32_t frequency) {
+    if (frequency == 0 || frequency > (common_hal_mcu_processor_get_frequency() / 2)) {
+        mp_raise_ValueError(translate("Invalid PWM frequency"));
+    }
+
+    target_slice_frequencies[self->slice] = frequency;
+
+    // For low frequencies use the divider to give us full resolution duty_cycle.
+    if (frequency < (common_hal_mcu_processor_get_frequency() / (1 << 16))) {
+        // Compute the divisor. It's an 8 bit integer and 4 bit fraction. Therefore,
+        // we compute everything * 16 for the fractional part.
+        // This is 1 << 12 because 4 bits are the * 16.
+        uint64_t frequency16 = ((uint64_t) clock_get_hz(clk_sys)) / (1 << 12);
+        uint64_t div16 = frequency16 / frequency;
+        // Round the divisor to try and get closest to the target frequency. We could
+        // also always round up and use TOP to get us closer. We may not need that though.
+        if (frequency16 % frequency >= frequency / 2) {
+            div16 += 1;
+        }
+        if (div16 >= (1 << 12)) {
+            div16 = (1 << 12) - 1;
+        }
+        self->actual_frequency = frequency16 / div16;
+        self->top = 1 << 16;
+        pwm_set_clkdiv_int_frac(self->slice, div16 / 16, div16 % 16);
+        pwm_set_wrap(self->slice, self->top - 1);
+    } else {
+        uint32_t top = common_hal_mcu_processor_get_frequency() / frequency;
+        self->actual_frequency = common_hal_mcu_processor_get_frequency() / top;
+        self->top = top;
+        pwm_set_clkdiv_int_frac(self->slice, 1, 0);
+        pwm_set_wrap(self->slice, self->top - 1);
+    }
+    common_hal_pwmio_pwmout_set_duty_cycle(self, self->duty_cycle);
+}
+
+uint32_t common_hal_pwmio_pwmout_get_frequency(pwmio_pwmout_obj_t* self) {
+    return self->actual_frequency;
+}
+
+bool common_hal_pwmio_pwmout_get_variable_frequency(pwmio_pwmout_obj_t* self) {
+    return self->variable_frequency;
+}

ports/raspberrypi/common-hal/pwmio/PWMOut.h

@@ -0,0 +1,47 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_PWMIO_PWMOUT_H
+#define MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_PWMIO_PWMOUT_H
+
+#include "common-hal/microcontroller/Pin.h"
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    const mcu_pin_obj_t *pin;
+    uint8_t slice;
+    uint8_t channel;
+    bool variable_frequency;
+    uint16_t duty_cycle;
+    uint32_t actual_frequency;
+    uint32_t top;
+} pwmio_pwmout_obj_t;
+
+void pwmout_reset(void);
+
+#endif // MICROPY_INCLUDED_ATMEL_SAMD_COMMON_HAL_PWMIO_PWMOUT_H

ports/raspberrypi/common-hal/pwmio/__init__.c

@@ -0,0 +1 @@
+// No pwmio module functions.

ports/raspberrypi/common-hal/rp2pio/StateMachine.c

@@ -0,0 +1,585 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "bindings/rp2pio/StateMachine.h"
+
+#include "common-hal/microcontroller/__init__.h"
+#include "shared-bindings/microcontroller/Pin.h"
+
+#include "src/rp2040/hardware_regs/include/hardware/platform_defs.h"
+#include "src/rp2_common/hardware_clocks/include/hardware/clocks.h"
+#include "src/rp2_common/hardware_dma/include/hardware/dma.h"
+#include "src/rp2_common/hardware_pio/include/hardware/pio_instructions.h"
+#include "src/rp2040/hardware_structs/include/hardware/structs/iobank0.h"
+
+#include "lib/utils/interrupt_char.h"
+#include "py/obj.h"
+#include "py/objproperty.h"
+#include "py/runtime.h"
+
+// Count how many state machines are using each pin.
+STATIC uint8_t _pin_reference_count[TOTAL_GPIO_COUNT];
+STATIC uint32_t _current_program_id[NUM_PIOS][NUM_PIO_STATE_MACHINES];
+STATIC uint8_t _current_program_offset[NUM_PIOS][NUM_PIO_STATE_MACHINES];
+STATIC uint8_t _current_program_len[NUM_PIOS][NUM_PIO_STATE_MACHINES];
+STATIC bool _never_reset[NUM_PIOS][NUM_PIO_STATE_MACHINES];
+
+STATIC uint32_t _current_pins[NUM_PIOS];
+STATIC uint32_t _current_sm_pins[NUM_PIOS][NUM_PIO_STATE_MACHINES];
+
+STATIC PIO pio_instances[2] = {pio0, pio1};
+
+void _reset_statemachine(PIO pio, uint8_t sm, bool leave_pins) {
+    uint8_t pio_index = pio_get_index(pio);
+    pio_sm_unclaim(pio, sm);
+    uint32_t program_id = _current_program_id[pio_index][sm];
+    if (program_id == 0) {
+        return;
+    }
+    _current_program_id[pio_index][sm] = 0;
+    bool program_in_use = false;
+    for (size_t i = 0; i < NUM_PIO_STATE_MACHINES; i++) {
+        if (_current_program_id[pio_index][i] == program_id) {
+            program_in_use = true;
+            break;
+        }
+    }
+    if (!program_in_use) {
+        uint8_t offset = _current_program_offset[pio_index][sm];
+        pio_program_t program_struct = {
+            .length = _current_program_len[pio_index][sm]
+        };
+        pio_remove_program(pio, &program_struct, offset);
+    }
+
+    uint32_t pins = _current_sm_pins[pio_index][sm];
+    for (size_t pin_number = 0; pin_number < TOTAL_GPIO_COUNT; pin_number++) {
+        if ((pins & (1 << pin_number)) == 0) {
+            continue;
+        }
+        _pin_reference_count[pin_number]--;
+        if (_pin_reference_count[pin_number] == 0) {
+            if (!leave_pins) {
+                reset_pin_number(pin_number);
+            }
+            _current_pins[pio_index] &= ~(1 << pin_number);
+        }
+    }
+    _current_sm_pins[pio_index][sm] = 0;
+}
+
+void reset_rp2pio_statemachine(void) {
+    for (size_t i = 0; i < NUM_PIOS; i++) {
+        PIO pio = pio_instances[i];
+        for (size_t j = 0; j < NUM_PIO_STATE_MACHINES; j++) {
+            if (_never_reset[i][j]) {
+                continue;
+            }
+            _reset_statemachine(pio, j, false);
+        }
+    }
+}
+
+STATIC uint32_t _check_pins_free(const mcu_pin_obj_t * first_pin, uint8_t pin_count, bool exclusive_pin_use) {
+    uint32_t pins_we_use = 0;
+    if (first_pin != NULL) {
+        for (size_t i = 0; i < pin_count; i++) {
+            uint8_t pin_number = first_pin->number + i;
+            if (pin_number >= TOTAL_GPIO_COUNT) {
+                mp_raise_ValueError(translate("Pin count too large"));
+            }
+            const mcu_pin_obj_t * pin = mcu_pin_global_dict_table[pin_number].value;
+            if (exclusive_pin_use || _pin_reference_count[pin_number] == 0) {
+                assert_pin_free(pin);
+            }
+            pins_we_use |= 1 << pin_number;
+        }
+    }
+    return pins_we_use;
+}
+
+
+bool rp2pio_statemachine_construct(rp2pio_statemachine_obj_t *self,
+    const uint16_t* program, size_t program_len,
+    size_t frequency,
+    const uint16_t* init, size_t init_len,
+    const mcu_pin_obj_t * first_out_pin, uint8_t out_pin_count,
+    const mcu_pin_obj_t * first_in_pin, uint8_t in_pin_count,
+    const mcu_pin_obj_t * first_set_pin, uint8_t set_pin_count,
+    const mcu_pin_obj_t * first_sideset_pin, uint8_t sideset_pin_count,
+    uint32_t pins_we_use, bool tx_fifo, bool rx_fifo,
+    bool auto_pull, uint8_t pull_threshold, bool out_shift_right,
+    bool auto_push, uint8_t push_threshold, bool in_shift_right,
+    bool claim_pins) {
+    // Create a program id that isn't the pointer so we can store it without storing the original object.
+    uint32_t program_id = ~((uint32_t) program);
+
+    // Next, find a PIO and state machine to use.
+    size_t pio_index = NUM_PIOS;
+    uint8_t program_offset = 32;
+    pio_program_t program_struct = {
+        .instructions = (uint16_t*) program,
+        .length = program_len,
+        .origin = 0
+    };
+    for (size_t i = 0; i < NUM_PIOS; i++) {
+        PIO pio = pio_instances[i];
+        uint8_t free_count = 0;
+        for (size_t j = 0; j < NUM_PIO_STATE_MACHINES; j++) {
+            if (_current_program_id[i][j] == program_id &&
+                _current_program_len[i][j] == program_len) {
+                program_offset = _current_program_offset[i][j];
+            }
+            int temp_claim = pio_claim_unused_sm(pio, false);
+            if (temp_claim >= 0) {
+                pio_sm_unclaim(pio, temp_claim);
+                free_count++;
+            }
+        }
+        if (free_count > 0 && (program_offset < 32 || pio_can_add_program(pio, &program_struct))) {
+            pio_index = i;
+            if (program_offset < 32) {
+                break;
+            }
+        }
+        // Reset program offset if we weren't able to find a free state machine
+        // on that PIO. (We would have broken the loop otherwise.)
+        program_offset = 32;
+    }
+
+    int state_machine = -1;
+    if (pio_index < NUM_PIOS) {
+        PIO pio = pio_instances[pio_index];
+        for (size_t i = 0; i < NUM_PIOS; i++) {
+            if (i == pio_index) {
+                continue;
+            }
+            if ((_current_pins[i] & pins_we_use) != 0) {
+                // Pin in use by another PIO already.
+                return false;
+            }
+        }
+        state_machine = pio_claim_unused_sm(pio, false);
+    }
+    if (pio_index == NUM_PIOS || state_machine < 0 || state_machine >= NUM_PIO_STATE_MACHINES) {
+        return false;
+    }
+
+    self->pio = pio_instances[pio_index];
+    self->state_machine = state_machine;
+    if (program_offset == 32) {
+        program_offset = pio_add_program(self->pio, &program_struct);
+    }
+    _current_program_id[pio_index][state_machine] = program_id;
+    _current_program_len[pio_index][state_machine] = program_len;
+    _current_program_offset[pio_index][state_machine] = program_offset;
+    _current_sm_pins[pio_index][state_machine] = pins_we_use;
+    _current_pins[pio_index] |= pins_we_use;
+
+    for (size_t pin_number = 0; pin_number < TOTAL_GPIO_COUNT; pin_number++) {
+        if ((pins_we_use & (1 << pin_number)) == 0) {
+            continue;
+        }
+        _pin_reference_count[pin_number]++;
+        const mcu_pin_obj_t * pin = mcu_pin_global_dict_table[pin_number].value;
+        // Also claim the pin at the top level when we're the first to grab it.
+        if (_pin_reference_count[pin_number] == 1) {
+            if (claim_pins) {
+                claim_pin(pin);
+            }
+            pio_gpio_init(self->pio, pin_number);
+        }
+    }
+
+    pio_sm_config c = {0, 0, 0};
+
+    if (frequency == 0) {
+        frequency = clock_get_hz(clk_sys);
+    }
+    uint64_t frequency256 = ((uint64_t) clock_get_hz(clk_sys)) * 256;
+    uint64_t div256 = frequency256 / frequency;
+    if (frequency256 % div256 > 0) {
+        div256 += 1;
+    }
+    self->actual_frequency = frequency256 / div256;
+    sm_config_set_clkdiv_int_frac(&c, div256 / 256, div256 % 256);
+
+    if (first_out_pin != NULL) {
+        sm_config_set_out_pins(&c, first_out_pin->number, out_pin_count);
+    }
+    if (first_in_pin != NULL) {
+        sm_config_set_in_pins(&c, first_in_pin->number);
+    }
+    if (first_set_pin != NULL) {
+        sm_config_set_set_pins(&c, first_set_pin->number, set_pin_count);
+    }
+    if (first_sideset_pin != NULL) {
+        sm_config_set_sideset(&c, sideset_pin_count, false /* optional */, false /* pin direction */);
+        sm_config_set_sideset_pins(&c, first_sideset_pin->number);
+    }
+    sm_config_set_wrap(&c, program_offset, program_offset + program_len - 1);
+    sm_config_set_in_shift(&c, in_shift_right, auto_push, push_threshold);
+    sm_config_set_out_shift(&c, out_shift_right, auto_pull, pull_threshold);
+
+    enum pio_fifo_join join = PIO_FIFO_JOIN_NONE;
+    if (!rx_fifo) {
+        join = PIO_FIFO_JOIN_TX;
+    } else if (!tx_fifo) {
+        join = PIO_FIFO_JOIN_RX;
+    }
+    if (rx_fifo) {
+        self->rx_dreq = pio_get_dreq(self->pio, self->state_machine, false);
+    }
+    if (tx_fifo) {
+        self->tx_dreq = pio_get_dreq(self->pio, self->state_machine, true);
+    }
+    self->in = rx_fifo;
+    self->out = tx_fifo;
+    self->out_shift_right = out_shift_right;
+    self->in_shift_right = in_shift_right;
+
+    sm_config_set_fifo_join(&c, join);
+
+    pio_sm_init(self->pio, self->state_machine, program_offset, &c);
+    pio_sm_set_enabled(self->pio, self->state_machine, true);
+    for (size_t i = 0; i < init_len; i++) {
+        pio_sm_exec(self->pio, self->state_machine, init[i]);
+    }
+    return true;
+}
+
+void common_hal_rp2pio_statemachine_construct(rp2pio_statemachine_obj_t *self,
+    const uint16_t* program, size_t program_len,
+    size_t frequency,
+    const uint16_t* init, size_t init_len,
+    const mcu_pin_obj_t * first_out_pin, uint8_t out_pin_count,
+    const mcu_pin_obj_t * first_in_pin, uint8_t in_pin_count,
+    const mcu_pin_obj_t * first_set_pin, uint8_t set_pin_count,
+    const mcu_pin_obj_t * first_sideset_pin, uint8_t sideset_pin_count,
+    bool exclusive_pin_use,
+    bool auto_pull, uint8_t pull_threshold, bool out_shift_right,
+    bool auto_push, uint8_t push_threshold, bool in_shift_right) {
+
+    // First, check that all pins are free OR already in use by any PIO if exclusive_pin_use is false.
+    uint32_t pins_we_use = 0;
+    pins_we_use |= _check_pins_free(first_out_pin, out_pin_count, exclusive_pin_use);
+    pins_we_use |= _check_pins_free(first_in_pin, in_pin_count, exclusive_pin_use);
+    pins_we_use |= _check_pins_free(first_set_pin, set_pin_count, exclusive_pin_use);
+    pins_we_use |= _check_pins_free(first_sideset_pin, sideset_pin_count, exclusive_pin_use);
+
+    // Look through the program to see what we reference and make sure it was provided.
+    bool tx_fifo = false;
+    bool rx_fifo = false;
+    bool in_loaded = false; // can be loaded in other ways besides the fifo
+    bool out_loaded = false;
+    bool in_used = false;
+    bool out_used = false;
+    for (size_t i = 0; i < program_len; i++) {
+        uint16_t full_instruction = program[i];
+        uint16_t instruction = full_instruction & 0xe000;
+        if (instruction == 0x8000) {
+            if ((full_instruction & 0xe080) == pio_instr_bits_push) {
+                rx_fifo = true;
+                in_loaded = true;
+            } else { // pull otherwise.
+                tx_fifo = true;
+                out_loaded = true;
+            }
+        }
+        if (instruction == pio_instr_bits_jmp) {
+            uint16_t condition = (full_instruction & 0x00e0) >> 5;
+            if (condition == 0x6) { // GPIO
+                mp_raise_NotImplementedError_varg(translate("Instruction %d jumps on pin"), i);
+            }
+        }
+        if (instruction == pio_instr_bits_wait) {
+            uint16_t wait_source = (full_instruction & 0x0060) >> 5;
+            uint16_t wait_index = full_instruction & 0x001f;
+            if (wait_source == 0 && (pins_we_use & (1 << wait_index)) == 0) { // GPIO
+                mp_raise_ValueError_varg(translate("Instruction %d uses extra pin"), i);
+            }
+            if (wait_source == 1) { // Input pin
+                if (first_in_pin == NULL) {
+                    mp_raise_ValueError_varg(translate("Missing first_in_pin. Instruction %d waits based on pin"), i);
+                }
+                if (wait_index > in_pin_count) {
+                    mp_raise_ValueError_varg(translate("Instruction %d waits on input outside of count"), i);
+                }
+            }
+        }
+        if (instruction == pio_instr_bits_in) {
+            uint16_t source = (full_instruction & 0x00e0) >> 5;
+            uint16_t bit_count = full_instruction & 0x001f;
+            if (source == 0) {
+                if (first_in_pin == NULL) {
+                    mp_raise_ValueError_varg(translate("Missing first_in_pin. Instruction %d shifts in from pin(s)"), i);
+                }
+                if (bit_count > in_pin_count) {
+                    mp_raise_ValueError_varg(translate("Instruction %d shifts in more bits than pin count"), i);
+                }
+            }
+            if (auto_push) {
+                in_loaded = true;
+                rx_fifo = true;
+            }
+            in_used = true;
+        }
+        if (instruction == pio_instr_bits_out) {
+            uint16_t bit_count = full_instruction & 0x001f;
+            uint16_t destination = (full_instruction & 0x00e0) >> 5;
+            // Check for pins or pindirs destination.
+            if (destination == 0x0 || destination == 0x4) {
+                if (first_out_pin == NULL) {
+                    mp_raise_ValueError_varg(translate("Missing first_out_pin. Instruction %d shifts out to pin(s)"), i);
+                }
+                if (bit_count > out_pin_count) {
+                    mp_raise_ValueError_varg(translate("Instruction %d shifts out more bits than pin count"), i);
+                }
+            }
+            if (auto_pull) {
+                out_loaded = true;
+                tx_fifo = true;
+            }
+            out_used = true;
+        }
+        if (instruction == pio_instr_bits_set) {
+            uint16_t destination = (full_instruction & 0x00e0) >> 5;
+            // Check for pins or pindirs destination.
+            if ((destination == 0x00 || destination == 0x4) && first_set_pin == NULL) {
+                mp_raise_ValueError_varg(translate("Missing first_set_pin. Instruction %d sets pin(s)"), i);
+            }
+        }
+        if (instruction == pio_instr_bits_mov) {
+            uint16_t source = full_instruction & 0x0007;
+            uint16_t destination = (full_instruction & 0x00e0) >> 5;
+            // Check for pins or pindirs destination.
+            if (destination == 0x0 && first_out_pin == NULL) {
+                mp_raise_ValueError_varg(translate("Missing first_out_pin. Instruction %d writes pin(s)"), i);
+            }
+            if (source == 0x0 && first_in_pin == NULL) {
+                mp_raise_ValueError_varg(translate("Missing first_in_pin. Instruction %d reads pin(s)"), i);
+            }
+            if (destination == 0x6) {
+                in_loaded = true;
+            } else if (destination == 0x7) {
+                out_loaded = true;
+            }
+        }
+    }
+
+    if (!in_loaded && in_used) {
+        mp_raise_ValueError_varg(translate("Program does IN without loading ISR"));
+    }
+    if (!out_loaded && out_used) {
+        mp_raise_ValueError_varg(translate("Program does OUT without loading OSR"));
+    }
+
+    if (in_pin_count > 8 || out_pin_count > 8) {
+        mp_raise_NotImplementedError(translate("Only IN/OUT of up to 8 supported"));
+    }
+
+    bool ok = rp2pio_statemachine_construct(self,
+        program, program_len,
+        frequency,
+        init, init_len,
+        first_out_pin, out_pin_count,
+        first_in_pin, in_pin_count,
+        first_set_pin, set_pin_count,
+        first_sideset_pin, sideset_pin_count,
+        pins_we_use, tx_fifo, rx_fifo,
+        auto_pull, pull_threshold, out_shift_right,
+        auto_push, push_threshold, in_shift_right,
+        true /* claim pins */);
+    if (!ok) {
+        mp_raise_RuntimeError(translate("All state machines in use"));
+    }
+}
+
+uint32_t common_hal_rp2pio_statemachine_get_frequency(rp2pio_statemachine_obj_t* self) {
+    return self->actual_frequency;
+}
+
+void rp2pio_statemachine_deinit(rp2pio_statemachine_obj_t *self, bool leave_pins) {
+    uint8_t sm = self->state_machine;
+    uint8_t pio_index = pio_get_index(self->pio);
+    _never_reset[pio_index][sm] = false;
+    _reset_statemachine(self->pio, sm, leave_pins);
+    self->state_machine = NUM_PIO_STATE_MACHINES;
+}
+
+void common_hal_rp2pio_statemachine_deinit(rp2pio_statemachine_obj_t *self) {
+    rp2pio_statemachine_deinit(self, false);
+}
+
+void common_hal_rp2pio_statemachine_never_reset(rp2pio_statemachine_obj_t *self) {
+    uint8_t sm = self->state_machine;
+    uint8_t pio_index = pio_get_index(self->pio);
+    _never_reset[pio_index][sm] = true;
+    // TODO: never reset all the pins
+}
+
+bool common_hal_rp2pio_statemachine_deinited(rp2pio_statemachine_obj_t *self) {
+    return self->state_machine == NUM_PIO_STATE_MACHINES;
+}
+
+static bool _transfer(rp2pio_statemachine_obj_t *self,
+    const uint8_t *data_out, size_t out_len,
+    uint8_t *data_in, size_t in_len) {
+    // This implementation is based on SPI but varies because the tx and rx buffers
+    // may be different lengths and occur at different times or speeds.
+
+    // Use DMA for large transfers if channels are available
+    const size_t dma_min_size_threshold = 32;
+    int chan_tx = -1;
+    int chan_rx = -1;
+    size_t len = MAX(out_len, in_len);
+    bool tx = data_out != NULL;
+    bool rx = data_in != NULL;
+    if (len >= dma_min_size_threshold) {
+        // Use DMA channels to service the two FIFOs
+        if (tx) {
+            chan_tx = dma_claim_unused_channel(false);
+        }
+        if (rx) {
+            chan_rx = dma_claim_unused_channel(false);
+        }
+    }
+    volatile uint8_t* tx_destination = NULL;
+    const volatile uint8_t* rx_source = NULL;
+    if (tx) {
+        tx_destination = (volatile uint8_t*) &self->pio->txf[self->state_machine];
+        if (!self->out_shift_right) {
+            tx_destination += 3;
+        }
+    }
+    if (rx) {
+        rx_source = (const volatile uint8_t*) &self->pio->rxf[self->state_machine];
+        if (!self->in_shift_right) {
+            rx_source += 3;
+        }
+    }
+    bool use_dma = (!rx || chan_rx >= 0) && (!tx || chan_tx >= 0);
+    if (use_dma) {
+        dma_channel_config c;
+        uint32_t channel_mask = 0;
+        if (tx) {
+            c = dma_channel_get_default_config(chan_tx);
+            channel_config_set_transfer_data_size(&c, DMA_SIZE_8);
+            channel_config_set_dreq(&c, self->tx_dreq);
+            channel_config_set_read_increment(&c, true);
+            channel_config_set_write_increment(&c, false);
+            dma_channel_configure(chan_tx, &c,
+                tx_destination,
+                data_out,
+                len,
+                false);
+            channel_mask |= 1u << chan_tx;
+        }
+        if (rx) {
+            c = dma_channel_get_default_config(chan_rx);
+            channel_config_set_transfer_data_size(&c, DMA_SIZE_8);
+            channel_config_set_dreq(&c, self->rx_dreq);
+            channel_config_set_read_increment(&c, false);
+            channel_config_set_write_increment(&c, true);
+            dma_channel_configure(chan_rx, &c,
+                data_in,
+                rx_source,
+                len,
+                false);
+            channel_mask |= 1u << chan_rx;
+        }
+
+        dma_start_channel_mask(channel_mask);
+        while ((rx && dma_channel_is_busy(chan_rx)) ||
+               (tx && dma_channel_is_busy(chan_tx))) {
+            // TODO: We should idle here until we get a DMA interrupt or something else.
+            RUN_BACKGROUND_TASKS;
+            if (mp_hal_is_interrupted()) {
+                if (rx && dma_channel_is_busy(chan_rx)) {
+                    dma_channel_abort(chan_rx);
+                }
+                if (tx && dma_channel_is_busy(chan_tx)) {
+                    dma_channel_abort(chan_tx);
+                }
+                break;
+            }
+        }
+        // Clear the stall bit so we can detect when the state machine is done transmitting.
+        self->pio->fdebug = PIO_FDEBUG_TXSTALL_BITS;
+    }
+
+    // If we have claimed only one channel successfully, we should release immediately. This also
+    // releases the DMA after use_dma has been done.
+    if (chan_rx >= 0) {
+        dma_channel_unclaim(chan_rx);
+    }
+    if (chan_tx >= 0) {
+        dma_channel_unclaim(chan_tx);
+    }
+
+    if (!use_dma && !mp_hal_is_interrupted()) {
+        // Use software for small transfers, or if couldn't claim two DMA channels
+        size_t rx_remaining = in_len;
+        size_t tx_remaining = out_len;
+
+        while (rx_remaining || tx_remaining) {
+            if (tx_remaining && !pio_sm_is_tx_fifo_full(self->pio, self->state_machine)) {
+                *tx_destination = *data_out;
+                data_out++;
+                --tx_remaining;
+            }
+            if (rx_remaining && !pio_sm_is_rx_fifo_empty(self->pio, self->state_machine)) {
+                *data_in = (uint8_t) *rx_source;
+                data_in++;
+                --rx_remaining;
+            }
+            RUN_BACKGROUND_TASKS;
+            if (mp_hal_is_interrupted()) {
+                break;
+            }
+        }
+        // Clear the stall bit so we can detect when the state machine is done transmitting.
+        self->pio->fdebug = PIO_FDEBUG_TXSTALL_BITS;
+    }
+    // Wait for the state machine to finish transmitting the data we've queued
+    // up.
+    if (tx) {
+        while (!pio_sm_is_tx_fifo_empty(self->pio, self->state_machine) ||
+               (self->pio->fdebug & PIO_FDEBUG_TXSTALL_BITS) == 0) {
+            RUN_BACKGROUND_TASKS;
+        }
+    }
+    return true;
+}
+
+// Writes out the given data.
+bool common_hal_rp2pio_statemachine_write(rp2pio_statemachine_obj_t *self,
+    const uint8_t *data, size_t len) {
+    if (!self->out) {
+        mp_raise_RuntimeError(translate("No out in program"));
+    }
+    return _transfer(self, data, len, NULL, 0);
+}

ports/raspberrypi/common-hal/rp2pio/StateMachine.h

@@ -0,0 +1,68 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_RP2PIO_STATEMACHINE_H
+#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_RP2PIO_STATEMACHINE_H
+
+#include "py/obj.h"
+
+#include "src/rp2_common/hardware_pio/include/hardware/pio.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    uint32_t pins; // Bitmask of what pins this state machine uses.
+    int state_machine;
+    PIO pio;
+    bool in;
+    bool out;
+    uint tx_dreq;
+    uint rx_dreq;
+    bool out_shift_right;
+    bool in_shift_right;
+    uint32_t actual_frequency;
+} rp2pio_statemachine_obj_t;
+
+void reset_rp2pio_statemachine(void);
+
+// Minimal internal version that only fails on pin error (not in use) or full PIO.
+bool rp2pio_statemachine_construct(rp2pio_statemachine_obj_t *self,
+    const uint16_t* program, size_t program_len,
+    size_t frequency,
+    const uint16_t* init, size_t init_len,
+    const mcu_pin_obj_t * first_out_pin, uint8_t out_pin_count,
+    const mcu_pin_obj_t * first_in_pin, uint8_t in_pin_count,
+    const mcu_pin_obj_t * first_set_pin, uint8_t set_pin_count,
+    const mcu_pin_obj_t * first_sideset_pin, uint8_t sideset_pin_count,
+    uint32_t pins_we_use, bool tx_fifo, bool rx_fifo,
+    bool auto_pull, uint8_t pull_threshold, bool out_shift_right,
+    bool auto_push, uint8_t push_threshold, bool in_shift_right,
+    bool claim_pins);
+
+void rp2pio_statemachine_deinit(rp2pio_statemachine_obj_t *self, bool leave_pins);
+
+extern const mp_obj_type_t rp2pio_statemachine_type;
+
+#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_RP2PIO_STATEMACHINE_H