kopia lustrzana https://github.com/espressif/esp-idf
136 wiersze
3.4 KiB
C
136 wiersze
3.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2020-2022 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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/*******************************************************************************
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* NOTICE
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* The hal is not public api, don't use in application code.
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* See readme.md in component/hal/readme.md
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******************************************************************************/
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// The LL for temperature sensor
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#pragma once
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#include <stdbool.h>
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#include <stdlib.h>
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#include "esp_private/regi2c_ctrl.h"
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#include "soc/regi2c_saradc.h"
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#include "soc/apb_saradc_struct.h"
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#include "soc/soc.h"
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#include "soc/soc_caps.h"
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#include "hal/temperature_sensor_types.h"
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#include "hal/assert.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define TEMPERATURE_SENSOR_LL_ADC_FACTOR (0.4386)
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#define TEMPERATURE_SENSOR_LL_DAC_FACTOR (27.88)
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#define TEMPERATURE_SENSOR_LL_OFFSET_FACTOR (20.52)
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/**
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* @brief Enable the temperature sensor power.
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*
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* @param enable true: enable the power.
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*/
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static inline void temperature_sensor_ll_enable(bool enable)
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{
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APB_SARADC.apb_tsens_ctrl.tsens_pu = enable;
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}
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/**
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* @brief Enable the clock
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*/
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static inline void temperature_sensor_ll_clk_enable(bool enable)
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{
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// No need to enable the temperature clock on esp32c3
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}
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/**
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* @brief Select the clock source for temperature sensor. On ESP32-C3, temperautre sensor
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* can use XTAL or FOSC. To make it convenience, suggest using XTAL all the time.
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*
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* @param clk_src refer to ``temperature_sensor_clk_src_t``
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*/
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static inline void temperature_sensor_ll_clk_sel(temperature_sensor_clk_src_t clk_src)
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{
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uint8_t clk_sel = 0;
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switch (clk_src) {
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case TEMPERATURE_SENSOR_CLK_SRC_XTAL:
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clk_sel = 1;
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break;
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case TEMPERATURE_SENSOR_CLK_SRC_RC_FAST:
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clk_sel = 0;
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break;
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default:
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HAL_ASSERT(false);
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break;
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}
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APB_SARADC.apb_tsens_ctrl2.tsens_clk_sel = clk_sel;
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}
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/**
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* @brief Set the hardware range, you can refer to the table ``temperature_sensor_attributes``
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*
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* @param tsens_dac ``reg_val`` in table ``temperature_sensor_attributes``
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*/
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static inline void temperature_sensor_ll_set_range(uint32_t range)
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{
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REGI2C_WRITE_MASK(I2C_SAR_ADC, I2C_SARADC_TSENS_DAC, range);
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}
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/**
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* @brief Get the raw value of temperature sensor.
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*
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* @return uint32_t raw_value
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*/
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static inline uint32_t temperature_sensor_ll_get_raw_value(void)
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{
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return APB_SARADC.apb_tsens_ctrl.tsens_out;
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}
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/**
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* @brief Get the offset value of temperature sensor.
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*
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* @note This function is only used in legacy driver
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*
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* @return uint32_t offset value
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*/
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static inline uint32_t temperature_sensor_ll_get_offset(void)
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{
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return REGI2C_READ_MASK(I2C_SAR_ADC, I2C_SARADC_TSENS_DAC);
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}
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/**
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* @brief Get the clock division factor value.
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*
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* @note This function is only used in legacy driver
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*
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* @return uint32_t clock division factor
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*/
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static inline uint32_t temperature_sensor_ll_get_clk_div(void)
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{
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return APB_SARADC.apb_tsens_ctrl.tsens_clk_div;
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}
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/**
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* @brief Set the clock division factor value, actually this has no impact on temperature sensor.
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* Suggest just keep it as default value 6.
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*
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* @note This function is only used in legacy driver
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*
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* @param clk_div clock division factor, range from 1-10
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*/
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static inline void temperature_sensor_ll_set_clk_div(uint8_t clk_div)
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{
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APB_SARADC.apb_tsens_ctrl.tsens_clk_div = clk_div;
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}
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#ifdef __cplusplus
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}
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#endif
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