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circuitpython/extmod/machine_pinbase.c

88 lines
2.9 KiB

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