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|
/*
* 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 <stdint.h>
#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
//|
//| .. note:: The OneWire class is available on `busio` and `bitbangio` in CircuitPython
//| 7.x for backwards compatibility but will be removed in CircuitPython 8.0.0.
//|
//| 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);
onewireio_onewire_obj_t *self = m_new_obj(onewireio_onewire_obj_t);
self->base.type = &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);
const mp_obj_type_t onewireio_onewire_type = {
{ &mp_type_type },
.name = MP_QSTR_OneWire,
.make_new = onewireio_onewire_make_new,
.locals_dict = (mp_obj_dict_t *)&onewireio_onewire_locals_dict,
};
|
