db0f9732b2
custom board driver ma120x0 is broken esp dsp is now IDF managed component mdns is now IDF managed component Signed-off-by: Karl Osterseher <karli_o@gmx.at>
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*
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* ESPRESSIF MIT License
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*
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* Copyright (c) 2022 <ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD>
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*
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* Permission is hereby granted for use on all ESPRESSIF SYSTEMS products, in
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* which case, it is free of charge, to any person obtaining a copy of this
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* software and associated documentation files (the "Software"), to deal in the
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* Software without restriction, including without limitation the rights to use,
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* 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
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* so, 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
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* all 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,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifndef _AUDIO_VOLUME_H_
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#define _AUDIO_VOLUME_H_
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Map of user volume to codec dac volume offset
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*/
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typedef float (*audio_codec_dac_vol_offset)(int volume);
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typedef void *volume_handle_t;
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/**
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* @brief Codec dac volume configurations
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*/
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typedef struct {
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float max_dac_volume; /*!< Codec support max volume */
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float min_dac_volume; /*!< Codec support min volume */
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float board_pa_gain; /*!< Board power amplifier gain */
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float volume_accuracy; /*!< Codec dac volume accuracy(0.5 or 1) */
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int8_t dac_vol_symbol; /*!< Whether the dac volume is positively correlated
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with the register value */
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uint8_t zero_volume_reg; /*!< Codec register value for zero dac volume */
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uint8_t reg_value; /*!< Record current dac volume register value */
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int user_volume; /*!< Record the user set volume */
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audio_codec_dac_vol_offset
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offset_conv_volume; /*!< Convert user volume to dac volume offset */
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} codec_dac_volume_config_t;
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/**
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* @brief Init the audio dac volume by config
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*
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* @param config Codec dac volume config
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*
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* @return volume_handle_t
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*/
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volume_handle_t audio_codec_volume_init(codec_dac_volume_config_t *config);
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/**
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* @brief Calculate codec register value by a linear formula
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*
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* @param vol_handle The dac volume handle
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* @param volume User set volume (0-100)
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*
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* @return Codec dac register value
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*/
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uint8_t audio_codec_get_dac_reg_value(volume_handle_t vol_handle, int volume);
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/**
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* @brief Calculate codec dac volume by a linear formula
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*
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* @param vol_handle The dac volume handle
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*
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* @return Codec dac volume
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*/
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float audio_codec_cal_dac_volume(volume_handle_t vol_handle);
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/**
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* @brief Deinit the dac volume handle
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*
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* @param vol_handle The dac volume handle
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*/
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void audio_codec_volume_deinit(volume_handle_t vol_handle);
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#ifdef __cplusplus
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}
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#endif
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#endif //_AUDIO_VOLUME_H_
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