68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
// Copyright (c) 2016 Paul Sokolovsky
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// SPDX-FileCopyrightText: 2014 MicroPython & CircuitPython contributors (https://github.com/adafruit/circuitpython/graphs/contributors)
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//
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// SPDX-License-Identifier: MIT
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#include "py/mpconfig.h"
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#if MICROPY_PY_MACHINE
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "extmod/virtpin.h"
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#include "extmod/machine_pinbase.h"
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// PinBase class
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// As this is abstract class, its instance is null.
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// But there should be an instance, as the rest of instance code
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// expects that there will be concrete object for inheritance.
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typedef struct _mp_pinbase_t {
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mp_obj_base_t base;
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} mp_pinbase_t;
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STATIC const mp_pinbase_t pinbase_singleton = {
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.base = { &machine_pinbase_type },
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};
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STATIC mp_obj_t pinbase_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
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(void)type;
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(void)n_args;
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(void)args;
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(void)kw_args;
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return MP_OBJ_FROM_PTR(&pinbase_singleton);
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}
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mp_uint_t pinbase_ioctl(mp_obj_t obj, mp_uint_t request, uintptr_t arg, int *errcode);
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mp_uint_t pinbase_ioctl(mp_obj_t obj, mp_uint_t request, uintptr_t arg, int *errcode) {
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(void)errcode;
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switch (request) {
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case MP_PIN_READ: {
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mp_obj_t dest[2];
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mp_load_method(obj, MP_QSTR_value, dest);
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return mp_obj_get_int(mp_call_method_n_kw(0, 0, dest));
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}
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case MP_PIN_WRITE: {
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mp_obj_t dest[3];
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mp_load_method(obj, MP_QSTR_value, dest);
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dest[2] = (arg == 0 ? mp_const_false : mp_const_true);
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mp_call_method_n_kw(1, 0, dest);
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return 0;
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}
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}
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return -1;
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}
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STATIC const mp_pin_p_t pinbase_pin_p = {
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MP_PROTO_IMPLEMENT(MP_QSTR_protocol_pin)
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.ioctl = pinbase_ioctl,
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};
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const mp_obj_type_t machine_pinbase_type = {
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{ &mp_type_type },
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.name = MP_QSTR_PinBase,
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.make_new = pinbase_make_new,
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.protocol = &pinbase_pin_p,
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};
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#endif // MICROPY_PY_MACHINE
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