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https://github.com/espressif/esp-idf.git
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106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/*
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* SPDX-FileCopyrightText: 2017-2021 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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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdbool.h>
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#include <stdint.h>
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#include "esp_err.h"
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#include "sdkconfig.h"
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//This is the ADC calibration value version burnt in efuse
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#define ESP_EFUSE_ADC_CALIB_VER 2
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#define ESP_EFUSE_ADC_CALIB_VER_MIN ESP_EFUSE_ADC_CALIB_VER
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#define ESP_EFUSE_ADC_CALIB_VER_MAX ESP_EFUSE_ADC_CALIB_VER
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#define RTCCALIB_ESP32S2_ADCCOUNT 2
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#define RTCCALIB_ESP32S2_ATTENCOUNT 4
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#define RTCCALIB_V1_PARAM_VLOW 0
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#define RTCCALIB_V1_PARAM_VHIGH 1
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#define RTCCALIB_V2_PARAM_VHIGH 0
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#define RTCCALIB_V2_PARAM_VINIT 1
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// these are the tags. Either use them directly or use esp_efuse_rtc_table_get_tag to calculate
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// the corresponding tag.
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#define RTCCALIB_V1IDX_A10L 1
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#define RTCCALIB_V1IDX_A11L 2
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#define RTCCALIB_V1IDX_A12L 3
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#define RTCCALIB_V1IDX_A13L 4
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#define RTCCALIB_V1IDX_A20L 5
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#define RTCCALIB_V1IDX_A21L 6
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#define RTCCALIB_V1IDX_A22L 7
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#define RTCCALIB_V1IDX_A23L 8
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#define RTCCALIB_V1IDX_A10H 9
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#define RTCCALIB_V1IDX_A11H 10
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#define RTCCALIB_V1IDX_A12H 11
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#define RTCCALIB_V1IDX_A13H 12
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#define RTCCALIB_V1IDX_A20H 13
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#define RTCCALIB_V1IDX_A21H 14
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#define RTCCALIB_V1IDX_A22H 15
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#define RTCCALIB_V1IDX_A23H 16
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#define RTCCALIB_V2IDX_A10H 17
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#define RTCCALIB_V2IDX_A11H 18
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#define RTCCALIB_V2IDX_A12H 19
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#define RTCCALIB_V2IDX_A13H 20
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#define RTCCALIB_V2IDX_A20H 21
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#define RTCCALIB_V2IDX_A21H 22
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#define RTCCALIB_V2IDX_A22H 23
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#define RTCCALIB_V2IDX_A23H 24
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#define RTCCALIB_V2IDX_A10I 25
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#define RTCCALIB_V2IDX_A11I 26
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#define RTCCALIB_V2IDX_A12I 27
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#define RTCCALIB_V2IDX_A13I 28
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#define RTCCALIB_V2IDX_A20I 29
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#define RTCCALIB_V2IDX_A21I 30
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#define RTCCALIB_V2IDX_A22I 31
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#define RTCCALIB_V2IDX_A23I 32
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#define RTCCALIB_IDX_TMPSENSOR 33
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/**
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* @brief Get rtc calibration version.
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*/
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int esp_efuse_rtc_table_read_calib_version(void);
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/**
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* @brief Helper function to calculate a tag from human-readable parameters.
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* Tag is used to index the desired data from the efuse.
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* For example, (1, 1, 3, 1) yields the tag RTCCALIB_V1IDX_A13H
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* extra params are used for identification when a adc_num-atten combination has
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* multiple efuse values.
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* @param adc_channel_num verbatim numbering of the ADC channel. For channel 1, use 1 and not 0.
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* @param atten attenuation. use the enum value.
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* @param version the version of the scheme to index for.
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* @param extra_params defined differently for each version.
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* */
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int esp_efuse_rtc_table_get_tag(int version, int adc_channel_num, int atten, int extra_params);
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/**
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* @brief Fetches a raw value from efuse and does signed bit parsing
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* @param tag tag obtained with esp_efuse_rtc_table_get_tag
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*
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* */
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int esp_efuse_rtc_table_get_raw_efuse_value(int tag);
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/**
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* @brief Fetches a raw value from efuse and resolve it to get
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* the original number that it meant to represent.
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*
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* @param tag tag obtained with esp_efuse_rtc_table_get_tag
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* @param use_zero_inputs Does not perform the raw value fetching before resolving the number,
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* but proceed as if all zeros were read from efuse.
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*
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* */
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int esp_efuse_rtc_table_get_parsed_efuse_value(int tag, bool skip_efuse_reading);
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#ifdef __cplusplus
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}
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#endif
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