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69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/*
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* SPDX-FileCopyrightText: 2023-2025 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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#pragma once
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#include <stdlib.h>
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#include <string.h>
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#include <stdbool.h>
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#include <inttypes.h>
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#include <stdatomic.h>
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#include "sdkconfig.h"
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#if CONFIG_ANA_CMPR_ENABLE_DEBUG_LOG
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// The local log level must be defined before including esp_log.h
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// Set the maximum log level for this source file
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#define LOG_LOCAL_LEVEL ESP_LOG_DEBUG
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#endif
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#include "esp_log.h"
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#include "esp_check.h"
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#include "esp_heap_caps.h"
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#include "esp_intr_alloc.h"
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#include "driver/ana_cmpr_types.h"
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#include "soc/soc_caps.h"
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#include "hal/ana_cmpr_ll.h"
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#include "soc/ana_cmpr_periph.h"
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#define TAG "ana_cmpr"
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#if CONFIG_ANA_CMPR_OBJ_CACHE_SAFE
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#define ANA_CMPR_MEM_ALLOC_CAPS (MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT)
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#else
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#define ANA_CMPR_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT
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#endif
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#if CONFIG_ANA_CMPR_ISR_CACHE_SAFE
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// the interrupt source of Analog Comparator is marked as shared because
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// it may share with other GPIO interrupt events
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// it may share with different analog comparator units
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#define ANA_CMPR_INTR_FLAG (ESP_INTR_FLAG_IRAM | ESP_INTR_FLAG_SHARED)
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#else
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#define ANA_CMPR_INTR_FLAG (ESP_INTR_FLAG_SHARED)
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#endif
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#define ANA_CMPR_ALLOW_INTR_PRIORITY_MASK ESP_INTR_FLAG_LOWMED
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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ANA_CMPR_FSM_INIT, // Comparator is in the initialization stage, not enabled yet
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ANA_CMPR_FSM_ENABLE, // Comparator is enabled
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ANA_CMPR_FSM_WAIT, // Comparator is in the middle of state change, so busy, other operations should wait
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} ana_cmpr_fsm_t;
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/**
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* @brief Get the analog comparator unit id from the handle
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*
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* @param cmpr The handle of the analog comparator unit
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* @return The id of the analog comparator unit
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*/
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ana_cmpr_unit_t ana_cmpr_get_unit_id(ana_cmpr_handle_t cmpr);
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#ifdef __cplusplus
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}
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#endif
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