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75 lines
2.4 KiB
75 lines
2.4 KiB
10 years ago
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/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "mpconfig.h"
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#include "misc.h"
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#include "nlr.h"
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#include "qstr.h"
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#include "obj.h"
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#include "irq.h"
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#include MICROPY_HAL_H
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void enable_irq(mp_int_t enable) {
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// With __set_PRIMASK 1 = disable, 0 = enable
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__set_PRIMASK(!enable);
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}
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mp_int_t disable_irq(void) {
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mp_int_t enabled = !__get_PRIMASK();
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__disable_irq();
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return enabled;
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}
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/// \function wfi()
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/// Wait for an interrupt.
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/// This executies a `wfi` instruction which reduces power consumption
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/// of the MCU until an interrupt occurs, at which point execution continues.
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STATIC mp_obj_t pyb_wfi(void) {
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__WFI();
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_0(pyb_wfi_obj, pyb_wfi);
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/// \function disable_irq()
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/// Disable interrupt requests.
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STATIC mp_obj_t pyb_disable_irq(void) {
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return MP_BOOL(disable_irq());
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}
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MP_DEFINE_CONST_FUN_OBJ_0(pyb_disable_irq_obj, pyb_disable_irq);
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/// \function enable_irq()
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/// Enable interrupt requests.
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STATIC mp_obj_t pyb_enable_irq(uint n_args, const mp_obj_t *arg) {
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mp_int_t enabled = true;
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if (n_args > 0) {
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enabled = mp_obj_is_true(arg[0]);
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}
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enable_irq(enabled);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_enable_irq_obj, 0, 1, pyb_enable_irq);
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