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128 lines
3.4 KiB
C
128 lines
3.4 KiB
C
/*
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* Copyright (c) 2022 OpenLuat & AirM2M
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef Luat_ADC_H
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#define Luat_ADC_H
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#include "luat_base.h"
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#include "luat_adc_legacy.h"
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#define LUAT_ADC_CH_CPU (-1)
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#define LUAT_ADC_CH_VBAT (-2)
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/**
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* @ingroup luatos_device 外设接口
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* @{
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*/
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/**
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* @defgroup luatos_device_adc ADC接口
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* @{
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*/
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/**
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* luat_adc_open
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* @brief 打开一个adc通道
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*
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* @param pin[in] adc通道的序号
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* @param args[in] 保留用,传NULL
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* @return 0 成功, 其他值为失败
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*/
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int luat_adc_open(int pin, void *args);
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/**
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* luat_adc_read
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* @brief 读取adc通道的值
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*
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* @param pin[in] adc通道的序号
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* @param val[out] adc通道的原始值
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* @param val2[out] adc通道的计算值,与具体通道有关
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* @return 0 成功, 其他值为失败
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*/
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int luat_adc_read(int pin, int *val, int *val2);
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/**
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* luat_adc_close
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* @brief 关闭adc通道
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*
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* @param pin[in] adc通道的序号
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* @return 0 成功, 其他值为失败
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*/
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int luat_adc_close(int pin);
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/**
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* @brief ADC控制命令
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*/
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typedef enum LUAT_ADC_CTRL_CMD
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{
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LUAT_ADC_SET_GLOBAL_RANGE,/**< 量程 */
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}LUAT_ADC_CTRL_CMD_E;
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/**
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* @brief ADC测量范围（量程）,和具体的芯片有关：移芯618芯片，LUAT_ADC_RANGE_1_2表示1.2V，内部无分压，其余量程内部都有分压
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*/
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typedef enum LUAT_ADC_RANGE
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{
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LUAT_ADC_AIO_RANGE_1_2,
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LUAT_ADC_AIO_RANGE_1_4,
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LUAT_ADC_AIO_RANGE_1_6,
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LUAT_ADC_AIO_RANGE_1_9,
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LUAT_ADC_AIO_RANGE_2_4,
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LUAT_ADC_AIO_RANGE_2_7,
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LUAT_ADC_AIO_RANGE_3_2,
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LUAT_ADC_AIO_RANGE_3_8,
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// 不再支持以下配置，无意义
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// LUAT_ADC_AIO_RANGE_4_8,
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// LUAT_ADC_AIO_RANGE_6_4,
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// LUAT_ADC_AIO_RANGE_9_6,
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// LUAT_ADC_AIO_RANGE_19_2,
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LUAT_ADC_VBAT_RANGE_2_0_RATIO,
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LUAT_ADC_VBAT_RANGE_2_2_RATIO,
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LUAT_ADC_VBAT_RANGE_2_6_RATIO,
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LUAT_ADC_VBAT_RANGE_3_2_RATIO,
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LUAT_ADC_VBAT_RANGE_4_0_RATIO,
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LUAT_ADC_VBAT_RANGE_5_3_RATIO,
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LUAT_ADC_VBAT_RANGE_8_0_RATIO,
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LUAT_ADC_VBAT_RANGE_16_0_RATIO,
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}LUAT_ADC_RANGE_E;
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/**
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* @brief ADC控制参数
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*/
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typedef union luat_adc_ctrl_param
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{
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LUAT_ADC_RANGE_E range;/**< adc量程*/
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void *userdata;/**< 预留 */
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} luat_adc_ctrl_param_t;
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/**
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* luat_adc_ctrl
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* @brief adc控制
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*
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* @param pin[in] adc通道的序号
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* @param cmd adc控制命令
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* @param param adc控制参数
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* @return 0 成功, 其他值为失败
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*/
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int luat_adc_ctrl(int pin, LUAT_ADC_CTRL_CMD_E cmd, luat_adc_ctrl_param_t param);
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/** @}*/
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/** @}*/
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#endif
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