kopia lustrzana https://github.com/espressif/esp-idf
40 wiersze
953 B
C
40 wiersze
953 B
C
/*
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* SPDX-FileCopyrightText: 2015-2024 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 "soc/soc_caps.h"
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#if SOC_APB_BACKUP_DMA
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#include "esp_attr.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/portmacro.h"
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#include "esp32c3/rom/apb_backup_dma.h"
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static portMUX_TYPE s_apb_backup_dma_mutex = portMUX_INITIALIZER_UNLOCKED;
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static void IRAM_ATTR apb_backup_dma_lock(void)
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{
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if (xPortInIsrContext()) {
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portENTER_CRITICAL_ISR(&s_apb_backup_dma_mutex);
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} else {
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portENTER_CRITICAL(&s_apb_backup_dma_mutex);
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}
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}
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static void IRAM_ATTR apb_backup_dma_unlock(void)
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{
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if (xPortInIsrContext()) {
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portEXIT_CRITICAL_ISR(&s_apb_backup_dma_mutex);
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} else {
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portEXIT_CRITICAL(&s_apb_backup_dma_mutex);
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}
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}
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void esp_apb_backup_dma_lock_init(void)
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{
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ets_apb_backup_init_lock_func(apb_backup_dma_lock, apb_backup_dma_unlock);
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}
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#endif // SOC_APB_BACKUP_DMA
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