1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 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_signal.h"
// Signal class
typedef struct _machine_signal_t {
mp_obj_base_t base;
mp_obj_t pin;
bool inverted;
} machine_signal_t;
STATIC mp_obj_t signal_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
enum { ARG_pin, ARG_inverted };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_, MP_ARG_OBJ | MP_ARG_REQUIRED },
{ MP_QSTR_inverted, MP_ARG_BOOL, {.u_bool = false} },
};
mp_arg_val_t parsed_args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, parsed_args);
machine_signal_t *o = m_new_obj(machine_signal_t);
o->base.type = type;
o->pin = parsed_args[ARG_pin].u_obj;
o->inverted = parsed_args[ARG_inverted].u_bool;
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_uint_t signal_ioctl(mp_obj_t self_in, mp_uint_t request, uintptr_t arg, int *errcode) {
(void)errcode;
machine_signal_t *self = MP_OBJ_TO_PTR(self_in);
switch (request) {
case MP_PIN_READ: {
return mp_virtual_pin_read(self->pin) ^ self->inverted;
}
case MP_PIN_WRITE: {
mp_virtual_pin_write(self->pin, arg ^ self->inverted);
return 0;
}
}
return -1;
}
// fast method for getting/setting signal value
STATIC mp_obj_t signal_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 0, 1, false);
if (n_args == 0) {
// get pin
return MP_OBJ_NEW_SMALL_INT(mp_virtual_pin_read(self_in));
} else {
// set pin
mp_virtual_pin_write(self_in, mp_obj_is_true(args[0]));
return mp_const_none;
}
}
STATIC mp_obj_t signal_value(size_t n_args, const mp_obj_t *args) {
return signal_call(args[0], n_args - 1, 0, args + 1);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(signal_value_obj, 1, 2, signal_value);
STATIC mp_obj_t signal_on(mp_obj_t self_in) {
mp_virtual_pin_write(self_in, 1);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(signal_on_obj, signal_on);
STATIC mp_obj_t signal_off(mp_obj_t self_in) {
mp_virtual_pin_write(self_in, 0);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(signal_off_obj, signal_off);
STATIC const mp_rom_map_elem_t signal_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_value), MP_ROM_PTR(&signal_value_obj) },
{ MP_ROM_QSTR(MP_QSTR_on), MP_ROM_PTR(&signal_on_obj) },
{ MP_ROM_QSTR(MP_QSTR_off), MP_ROM_PTR(&signal_off_obj) },
};
STATIC MP_DEFINE_CONST_DICT(signal_locals_dict, signal_locals_dict_table);
STATIC const mp_pin_p_t signal_pin_p = {
.ioctl = signal_ioctl,
};
const mp_obj_type_t machine_signal_type = {
{ &mp_type_type },
.name = MP_QSTR_Signal,
.make_new = signal_make_new,
.call = signal_call,
.protocol = &signal_pin_p,
.locals_dict = (void*)&signal_locals_dict,
};
#endif // MICROPY_PY_MACHINE
|
