/* * This file is part of the MicroPython project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2016 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 #include "py/obj.h" #include "py/runtime.h" #include "shared-bindings/microcontroller/Pin.h" #include "shared-bindings/busio/__init__.h" #include "shared-bindings/busio/I2C.h" #include "shared-bindings/busio/OneWire.h" #include "shared-bindings/busio/SPI.h" #include "shared-bindings/busio/UART.h" #include "shared-bindings/busio/__init__.h" #include "py/runtime.h" //| :mod:`busio` --- Hardware accelerated behavior //| ================================================= //| //| .. module:: busio //| :synopsis: Hardware accelerated behavior //| :platform: SAMD21 //| //| The `busio` module contains classes to support a variety of serial //| protocols. //| //| When the microcontroller does not support the behavior in a hardware //| accelerated fashion it may internally use a bitbang routine. However, if //| hardware support is available on a subset of pins but not those provided, //| then a RuntimeError will be raised. Use the `bitbangio` module to explicitly //| bitbang a serial protocol on any general purpose pins. //| //| Libraries //| //| .. toctree:: //| :maxdepth: 3 //| //| I2C //| OneWire //| SPI //| UART //| //| All classes change hardware state and should be deinitialized when they //| are no longer needed if the program continues after use. To do so, either //| call :py:meth:`!deinit` or use a context manager. See //| :ref:`lifetime-and-contextmanagers` for more info. //| //| For example:: //| //| import busio //| from board import * //| //| i2c = busio.I2C(SCL, SDA) //| print(i2c.scan()) //| i2c.deinit() //| //| This example will initialize the the device, run //| :py:meth:`~busio.I2C.scan` and then :py:meth:`~busio.I2C.deinit` the //| hardware. The last step is optional because CircuitPython automatically //| resets hardware after a program finishes. //| STATIC const mp_rom_map_elem_t busio_module_globals_table[] = { { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_busio) }, { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&busio_i2c_type) }, { MP_ROM_QSTR(MP_QSTR_OneWire), MP_ROM_PTR(&busio_onewire_type) }, { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&busio_spi_type) }, { MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&busio_uart_type) }, }; STATIC MP_DEFINE_CONST_DICT(busio_module_globals, busio_module_globals_table); const mp_obj_module_t busio_module = { .base = { &mp_type_module }, .globals = (mp_obj_dict_t*)&busio_module_globals, };