mirror of https://github.com/ARMmbed/mbed-os.git
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/*
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* Copyright (c) 2017-2018, Nuvoton Technology Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "sleep_api.h"
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#if DEVICE_SLEEP
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#include "cmsis.h"
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#include "device.h"
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#include "objects.h"
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#include "PeripheralPins.h"
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#include "platform/mbed_toolchain.h"
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#include <stdbool.h>
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/* Merge SYS_UnlockReg_S()/CLK_Idle_S() or CLK_PowerDown_S()/SYS_LockReg_S()
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* into nu_idle_s() or nu_powerdown_s()
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*
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* These APIs are secure calls. For performance, merge them into one when
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* nu_idle_s() and nu_powerdown_s() are available.
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*/
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MBED_WEAK void nu_idle_s(void);
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MBED_WEAK void nu_powerdown_s(void);
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#if DEVICE_SERIAL
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bool serial_can_deep_sleep(void);
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#endif
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/**
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* Enter idle mode, in which just CPU is halted.
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*/
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void hal_sleep(void)
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{
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#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
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SYS_UnlockReg();
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CLK_Idle();
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SYS_LockReg();
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#else
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if (nu_idle_s) {
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nu_idle_s();
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} else {
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SYS_UnlockReg_S();
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CLK_Idle_S();
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SYS_LockReg_S();
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}
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#endif
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}
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/**
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* Enter power-down mode, in which HXT/HIRC are halted.
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*/
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void hal_deepsleep(void)
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{
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#if DEVICE_SERIAL
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if (!serial_can_deep_sleep()) {
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return;
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}
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#endif
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#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
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SYS_UnlockReg();
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CLK_PowerDown();
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SYS_LockReg();
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#else
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if (nu_powerdown_s) {
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nu_powerdown_s();
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} else {
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SYS_UnlockReg_S();
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CLK_PowerDown_S();
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SYS_LockReg_S();
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}
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#endif
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}
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#endif
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