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
|
/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* 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 "mpconfig.h"
#include "misc.h"
#include "nlr.h"
#include "qstr.h"
#include "obj.h"
#include "irq.h"
#include MICROPY_HAL_H
void enable_irq(mp_int_t enable) {
// With __set_PRIMASK 1 = disable, 0 = enable
__set_PRIMASK(!enable);
}
mp_int_t disable_irq(void) {
mp_int_t enabled = !__get_PRIMASK();
__disable_irq();
return enabled;
}
/// \function wfi()
/// Wait for an interrupt.
/// This executies a `wfi` instruction which reduces power consumption
/// of the MCU until an interrupt occurs, at which point execution continues.
STATIC mp_obj_t pyb_wfi(void) {
__WFI();
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_0(pyb_wfi_obj, pyb_wfi);
/// \function disable_irq()
/// Disable interrupt requests.
STATIC mp_obj_t pyb_disable_irq(void) {
return MP_BOOL(disable_irq());
}
MP_DEFINE_CONST_FUN_OBJ_0(pyb_disable_irq_obj, pyb_disable_irq);
/// \function enable_irq()
/// Enable interrupt requests.
STATIC mp_obj_t pyb_enable_irq(uint n_args, const mp_obj_t *arg) {
mp_int_t enabled = true;
if (n_args > 0) {
enabled = mp_obj_is_true(arg[0]);
}
enable_irq(enabled);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_enable_irq_obj, 0, 1, pyb_enable_irq);
|
