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/**
*********************************************************************************
*
* @file ald_pmu.c
* @brief PMU module driver.
*
* @version V1.0
* @date 08 Mar. 2023
* @author AE Team
* @note
* Change Logs:
* Date Author Notes
* 08 Mar. 2023 Lisq The first version
*
* Copyright (C) Shanghai Eastsoft Microelectronics Co. Ltd. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**********************************************************************************
*/
#include "ald_pmu.h"
/** @addtogroup ES32VF2264_ALD
* @{
*/
/** @defgroup PMU PMU
* @brief PMU module driver
* @{
*/
/** @defgroup PMU_Private_Functions PMU Private Functions
* @{
*/
/**
* @brief PMU module interrupt handler
* @retval None
*/
void ald_lvd_irq_handler(void)
{
SYSCFG_UNLOCK();
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDCIF_MSK);
SYSCFG_LOCK();
return;
}
/**
* @}
*/
/** @defgroup PMU_Public_Functions PMU Public Functions
* @{
*/
/** @addtogroup PMU_Public_Functions_Group1 Low Power Mode
* @brief Low power mode select functions
*
* @verbatim
==============================================================================
##### Low power mode select functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Get wakeup status.
(+) Clear wakeup status.
@endverbatim
* @{
*/
/**
* @brief Get wakup status.
* @param sr: Status bit.
* @retval Status.
*/
flag_status_t ald_pmu_get_status(ald_pmu_status_t sr)
{
assert_param(IS_PMU_STATUS(sr));
if (READ_BIT(PMU->SR, sr))
return SET;
return RESET;
}
/**
* @brief Clear wakup status.
* @param sr: Status bit.
* @retval None
*/
void ald_pmu_clear_status(ald_pmu_status_t sr)
{
assert_param(IS_PMU_STATUS(sr));
SYSCFG_UNLOCK();
if (sr == ALD_PMU_SR_WUF)
SET_BIT(PMU->CR, PMU_CR_CWUF_MSK);
else
;/* do nothing */
SYSCFG_LOCK();
return;
}
/**
* @}
*/
/**
* @brief Enter stop mode
* @retval None
*/
void ald_pmu_stop_enter(void)
{
SYSCFG_UNLOCK();
MODIFY_REG(PMU->CR, PMU_CR_LPM_MSK, ALD_PMU_LP_STOP << PMU_CR_LPM_POSS);
CLEAR_BIT(PMU->CR, PMU_CR_VROSCEN_MSK);
MODIFY_REG(PMU->CR, PMU_CR_LPSTOP_MSK | PMU_CR_BGSTOP_MSK | \
PMU_CR_STPRTNEN_MSK | PMU_CR_FSTOP_MSK, \
1 << PMU_CR_LPSTOP_POS | 1 << PMU_CR_BGSTOP_POS \
| 1 << PMU_CR_STPRTNEN_POS | 1 << PMU_CR_FSTOP_POS);
/* WKEVNSEL is only for testing, and user should set it to be 0x10. */
MODIFY_REG(PMU->CR, PMU_CR_WKEVNSEL_MSK, (0x10 << PMU_CR_WKEVNSEL_POSS));
SYSCFG_LOCK();
csi_cpu_sleep_wfi(MEXSTATUS_SLEEP_DEEP);
__WFI();
}
/**
* @brief Enter sleep mode
* @retval None
*/
void ald_pmu_sleep_enter(void)
{
SYSCFG_UNLOCK();
MODIFY_REG(PMU->CR, PMU_CR_LPM_MSK, ALD_PMU_LP_STOP << PMU_CR_LPM_POSS);
/* WKEVNSEL is only for testing, and user should set it to be 0x10. */
MODIFY_REG(PMU->CR, PMU_CR_WKEVNSEL_MSK, (0x10 << PMU_CR_WKEVNSEL_POSS));
SYSCFG_LOCK();
csi_cpu_sleep_wfi(MEXSTATUS_SLEEP_LIGHT);
__WFI();
}
/** @addtogroup PMU_Public_Functions_Group2 LVD Configure
* @brief LVD configure functions
*
* @verbatim
==============================================================================
##### LVD configure functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Configure lvd parameters.
@endverbatim
* @{
*/
/**
* @brief Configure lvd using specified parameters.
* @param sel: LVD threshold voltage.
* @param mode: LVD trigger mode.
* @param state: New state, ENABLE/DISABLE;
* @retval None
*/
void ald_pmu_lvd_config(ald_pmu_lvd_voltage_sel_t sel, ald_pmu_lvd_trigger_mode_t mode, type_func_t state)
{
assert_param(IS_FUNC_STATE(state));
SYSCFG_UNLOCK();
if (state) {
assert_param(IS_PMU_LVD_VOL_SEL(sel));
assert_param(IS_PMU_LVD_TRIGGER_MODE(mode));
MODIFY_REG(PMU->LVDCR, PMU_LVDCR_LVDS_MSK, sel << PMU_LVDCR_LVDS_POSS);
MODIFY_REG(PMU->LVDCR, PMU_LVDCR_LVDIFS_MSK, mode << PMU_LVDCR_LVDIFS_POSS);
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDFLT_MSK);
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDCIF_MSK);
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDIE_MSK);
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDEN_MSK);
}
else {
SET_BIT(PMU->LVDCR, PMU_LVDCR_LVDCIF_MSK);
CLEAR_BIT(PMU->LVDCR, PMU_LVDCR_LVDIE_MSK);
CLEAR_BIT(PMU->LVDCR, PMU_LVDCR_LVDEN_MSK);
}
SYSCFG_LOCK();
return;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
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