mirror of
https://github.com/espressif/esp-idf.git
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82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
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/*
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* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stddef.h>
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#include <string.h>
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#include <sys/lock.h>
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#include <sys/param.h>
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#include "esp_attr.h"
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#include "esp_sleep.h"
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#include "esp_log.h"
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#include "esp_heap_caps.h"
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#include "soc/soc_caps.h"
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#include "hal/rtc_hal.h"
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#include "esp_private/sleep_retention.h"
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#include "sdkconfig.h"
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/**
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* Internal structure which holds all requested light sleep memory retention parameters
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*/
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typedef struct {
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rtc_cntl_sleep_retent_t retent;
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} sleep_retention_t;
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static DRAM_ATTR sleep_retention_t s_retention;
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#if SOC_PM_SUPPORT_CPU_PD
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#define CPU_PD_MEM_TYPE_CAPS (MALLOC_CAP_RETENTION | MALLOC_CAP_DEFAULT)
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esp_err_t esp_sleep_cpu_pd_low_init(bool enable)
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{
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if (enable) {
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if (s_retention.retent.cpu_pd_mem == NULL) {
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void *buf = heap_caps_aligned_alloc(SOC_RTC_CNTL_CPU_PD_DMA_ADDR_ALIGN,
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SOC_RTC_CNTL_CPU_PD_RETENTION_MEM_SIZE + RTC_HAL_DMA_LINK_NODE_SIZE,
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CPU_PD_MEM_TYPE_CAPS);
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if (buf) {
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memset(buf, 0, SOC_RTC_CNTL_CPU_PD_RETENTION_MEM_SIZE + RTC_HAL_DMA_LINK_NODE_SIZE);
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s_retention.retent.cpu_pd_mem = rtc_cntl_hal_dma_link_init(buf,
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buf + RTC_HAL_DMA_LINK_NODE_SIZE, SOC_RTC_CNTL_CPU_PD_RETENTION_MEM_SIZE, NULL);
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} else {
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return ESP_ERR_NO_MEM;
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}
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}
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} else {
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if (s_retention.retent.cpu_pd_mem) {
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heap_caps_free(s_retention.retent.cpu_pd_mem);
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s_retention.retent.cpu_pd_mem = NULL;
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}
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}
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return ESP_OK;
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}
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bool cpu_domain_pd_allowed(void)
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{
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return (s_retention.retent.cpu_pd_mem != NULL);
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}
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#endif // SOC_PM_SUPPORT_CPU_PD
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#if SOC_PM_SUPPORT_CPU_PD || SOC_PM_SUPPORT_TAGMEM_PD
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void sleep_enable_memory_retention(void)
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{
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#if SOC_PM_SUPPORT_CPU_PD
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rtc_cntl_hal_enable_cpu_retention(&s_retention.retent);
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#endif
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}
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void IRAM_ATTR sleep_disable_memory_retention(void)
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{
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#if SOC_PM_SUPPORT_CPU_PD
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rtc_cntl_hal_disable_cpu_retention(&s_retention.retent);
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#endif
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}
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#endif // SOC_PM_SUPPORT_CPU_PD || SOC_PM_SUPPORT_TAGMEM_PD
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