/* * This file is part of the Micro Python project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2017 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 "shared/runtime/context_manager_helpers.h" #include "py/objproperty.h" #include "py/runtime.h" #include "py/runtime0.h" #include "shared-bindings/microcontroller/Pin.h" #include "shared-bindings/onewireio/OneWire.h" #include "shared-bindings/util.h" //| class OneWire: //| def __init__(self, pin: microcontroller.Pin) -> None: //| """Create a OneWire object associated with the given pin. //| //| The object implements the lowest level timing-sensitive bits of the protocol. //| //| :param ~microcontroller.Pin pin: Pin connected to the OneWire bus //| //| Read a short series of pulses:: //| //| import onewireio //| import board //| //| onewire = onewireio.OneWire(board.D7) //| onewire.reset() //| onewire.write_bit(True) //| onewire.write_bit(False) //| print(onewire.read_bit())""" //| ... STATIC mp_obj_t onewireio_onewire_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) { enum { ARG_pin }; static const mp_arg_t allowed_args[] = { { MP_QSTR_pin, MP_ARG_REQUIRED | MP_ARG_OBJ }, }; mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); const mcu_pin_obj_t *pin = validate_obj_is_free_pin(args[ARG_pin].u_obj, MP_QSTR_pin); onewireio_onewire_obj_t *self = mp_obj_malloc(onewireio_onewire_obj_t, &onewireio_onewire_type); common_hal_onewireio_onewire_construct(self, pin); return MP_OBJ_FROM_PTR(self); } //| def deinit(self) -> None: //| """Deinitialize the OneWire bus and release any hardware resources for reuse.""" //| ... STATIC mp_obj_t onewireio_onewire_deinit(mp_obj_t self_in) { onewireio_onewire_obj_t *self = MP_OBJ_TO_PTR(self_in); common_hal_onewireio_onewire_deinit(self); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(onewireio_onewire_deinit_obj, onewireio_onewire_deinit); STATIC void check_for_deinit(onewireio_onewire_obj_t *self) { if (common_hal_onewireio_onewire_deinited(self)) { raise_deinited_error(); } } //| def __enter__(self) -> OneWire: //| """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 onewireio_onewire_obj___exit__(size_t n_args, const mp_obj_t *args) { (void)n_args; common_hal_onewireio_onewire_deinit(args[0]); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(onewireio_onewire___exit___obj, 4, 4, onewireio_onewire_obj___exit__); //| def reset(self) -> bool: //| """Reset the OneWire bus and read presence //| //| :returns: False when at least one device is present //| :rtype: bool""" //| ... STATIC mp_obj_t onewireio_onewire_obj_reset(mp_obj_t self_in) { onewireio_onewire_obj_t *self = MP_OBJ_TO_PTR(self_in); check_for_deinit(self); return mp_obj_new_bool(common_hal_onewireio_onewire_reset(self)); } MP_DEFINE_CONST_FUN_OBJ_1(onewireio_onewire_reset_obj, onewireio_onewire_obj_reset); //| def read_bit(self) -> bool: //| """Read in a bit //| //| :returns: bit state read //| :rtype: bool""" //| ... STATIC mp_obj_t onewireio_onewire_obj_read_bit(mp_obj_t self_in) { onewireio_onewire_obj_t *self = MP_OBJ_TO_PTR(self_in); check_for_deinit(self); return mp_obj_new_bool(common_hal_onewireio_onewire_read_bit(self)); } MP_DEFINE_CONST_FUN_OBJ_1(onewireio_onewire_read_bit_obj, onewireio_onewire_obj_read_bit); //| def write_bit(self, value: bool) -> None: //| """Write out a bit based on value.""" //| ... //| STATIC mp_obj_t onewireio_onewire_obj_write_bit(mp_obj_t self_in, mp_obj_t bool_obj) { onewireio_onewire_obj_t *self = MP_OBJ_TO_PTR(self_in); check_for_deinit(self); common_hal_onewireio_onewire_write_bit(self, mp_obj_is_true(bool_obj)); return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_2(onewireio_onewire_write_bit_obj, onewireio_onewire_obj_write_bit); STATIC const mp_rom_map_elem_t onewireio_onewire_locals_dict_table[] = { // Methods { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&onewireio_onewire_deinit_obj) }, { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) }, { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&onewireio_onewire___exit___obj) }, { MP_ROM_QSTR(MP_QSTR_reset), MP_ROM_PTR(&onewireio_onewire_reset_obj) }, { MP_ROM_QSTR(MP_QSTR_read_bit), MP_ROM_PTR(&onewireio_onewire_read_bit_obj) }, { MP_ROM_QSTR(MP_QSTR_write_bit), MP_ROM_PTR(&onewireio_onewire_write_bit_obj) }, }; STATIC MP_DEFINE_CONST_DICT(onewireio_onewire_locals_dict, onewireio_onewire_locals_dict_table); MP_DEFINE_CONST_OBJ_TYPE( onewireio_onewire_type, MP_QSTR_OneWire, MP_TYPE_FLAG_NONE, make_new, onewireio_onewire_make_new, locals_dict, &onewireio_onewire_locals_dict );