mirror of https://github.com/ARMmbed/mbed-os.git
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2006-2013 ARM Limited
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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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#include "cmsis.h"
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#include "fsl_smc.h"
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#include "fsl_clock_config.h"
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extern bool serial_check_tx_ongoing();
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void hal_sleep(void)
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{
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SMC_SetPowerModeProtection(SMC, kSMC_AllowPowerModeAll);
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SMC_SetPowerModeWait(SMC);
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}
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void hal_deepsleep(void)
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{
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#if (defined(FSL_FEATURE_SOC_MCG_COUNT) && FSL_FEATURE_SOC_MCG_COUNT)
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#if (defined(FSL_FEATURE_MCG_HAS_PLL) && FSL_FEATURE_MCG_HAS_PLL)
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smc_power_state_t original_power_state;
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original_power_state = SMC_GetPowerModeState(SMC);
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#endif // FSL_FEATURE_MCG_HAS_PLL
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#endif // FSL_FEATURE_SOC_MCG_COUNT
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/* Check if any of the UART's is transmitting data */
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if (serial_check_tx_ongoing()) {
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return;
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}
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SMC_SetPowerModeProtection(SMC, kSMC_AllowPowerModeAll);
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SMC_PreEnterStopModes();
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SMC_SetPowerModeVlps(SMC);
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SMC_PostExitStopModes();
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#if (defined(FSL_FEATURE_SOC_MCG_COUNT) && FSL_FEATURE_SOC_MCG_COUNT)
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#if (defined(FSL_FEATURE_MCG_HAS_PLL) && FSL_FEATURE_MCG_HAS_PLL)
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/*
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* If enter stop modes when MCG in PEE mode, then after wakeup, the MCG is in PBE mode,
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* need to enter PEE mode manually.
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*/
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if (original_power_state == kSMC_PowerStateRun) {
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/* Wait for PLL lock. */
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while (!(kMCG_Pll0LockFlag & CLOCK_GetStatusFlags()))
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{
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}
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CLOCK_SetPeeMode();
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}
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#endif // FSL_FEATURE_MCG_HAS_PLL
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#endif // FSL_FEATURE_SOC_MCG_COUNT
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}
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