86 lines
3.3 KiB
C
86 lines
3.3 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-bindings/busio/__init__.h"
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#include "shared-bindings/busio/I2C.h"
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#include "shared-bindings/busio/SPI.h"
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#include "shared-bindings/busio/UART.h"
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#include "shared-bindings/onewireio/OneWire.h"
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#include "py/runtime.h"
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//| """Hardware accelerated external bus access
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//|
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//| The `busio` module contains classes to support a variety of serial
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//| protocols.
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//|
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//| When the microcontroller does not support the behavior in a hardware
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//| accelerated fashion it may internally use a bitbang routine. However, if
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//| hardware support is available on a subset of pins but not those provided,
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//| then a RuntimeError will be raised. Use the `bitbangio` module to explicitly
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//| bitbang a serial protocol on any general purpose pins.
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//|
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//| All classes change hardware state and should be deinitialized when they
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//| are no longer needed if the program continues after use. To do so, either
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//| call :py:meth:`!deinit` or use a context manager. See
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//| :ref:`lifetime-and-contextmanagers` for more info.
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//|
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//| For example::
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//|
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//| import busio
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//| from board import *
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//|
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//| i2c = busio.I2C(SCL, SDA)
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//| print(i2c.scan())
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//| i2c.deinit()
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//|
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//| This example will initialize the the device, run
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//| :py:meth:`~busio.I2C.scan` and then :py:meth:`~busio.I2C.deinit` the
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//| hardware. The last step is optional because CircuitPython automatically
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//| resets hardware after a program finishes."""
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//|
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STATIC const mp_rom_map_elem_t busio_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_busio) },
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{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&busio_i2c_type) },
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{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&busio_spi_type) },
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{ MP_ROM_QSTR(MP_QSTR_OneWire), MP_ROM_PTR(&onewireio_onewire_type) },
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{ MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&busio_uart_type) },
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};
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STATIC MP_DEFINE_CONST_DICT(busio_module_globals, busio_module_globals_table);
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const mp_obj_module_t busio_module = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t *)&busio_module_globals,
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};
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