mirror of
https://github.com/furyhawk/ESP32-X-Desktop.git
synced 2026-07-21 17:05:35 +00:00
furyhawk
fbacf0d49e
- Introduced my_codec.h and my_codec.c for a new codec interface with control, data, and volume functionalities. - Implemented test_app_main.c to set up Unity test framework for memory leak checks. - Created test_board.h and test_board.c to define board-specific configurations and I2C/I2S initialization functions. - Developed test_my_codec.c to validate the functionality of the new codec interface, including volume control, mute settings, and data read/write operations. - Ensured compatibility with ESP-IDF versioning for I2C and I2S drivers.
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/*
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* SPDX-FileCopyrightText: 2023 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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#include <math.h>
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#include "esp_codec_dev_vol.h"
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int esp_codec_dev_vol_calc_reg(const esp_codec_dev_vol_range_t *vol_range, float db)
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{
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if (vol_range->max_vol.db_value == vol_range->min_vol.db_value) {
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return vol_range->max_vol.vol;
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}
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if (db >= vol_range->max_vol.db_value) {
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return vol_range->max_vol.vol;
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}
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if (db <= vol_range->min_vol.db_value) {
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return vol_range->min_vol.vol;
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}
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float ratio =
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(vol_range->max_vol.vol - vol_range->min_vol.vol) / (vol_range->max_vol.db_value - vol_range->min_vol.db_value);
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return (int) ((db - vol_range->min_vol.db_value) * ratio + vol_range->min_vol.vol);
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}
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float esp_codec_dev_vol_calc_db(const esp_codec_dev_vol_range_t *vol_range, int vol)
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{
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if (vol_range->max_vol.vol == vol_range->min_vol.vol) {
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return vol_range->max_vol.db_value;
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}
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if (vol_range->max_vol.vol > vol_range->min_vol.vol) {
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if (vol >= vol_range->max_vol.vol) {
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return vol_range->max_vol.db_value;
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}
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if (vol <= vol_range->min_vol.vol) {
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return vol_range->min_vol.db_value;
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}
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} else {
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if (vol <= vol_range->max_vol.vol) {
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return vol_range->max_vol.db_value;
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}
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if (vol >= vol_range->min_vol.vol) {
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return vol_range->min_vol.db_value;
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}
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}
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float ratio =
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(vol_range->max_vol.db_value - vol_range->min_vol.db_value) / (vol_range->max_vol.vol - vol_range->min_vol.vol);
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return ((vol - vol_range->min_vol.vol) * ratio + vol_range->min_vol.db_value);
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}
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float esp_codec_dev_col_calc_hw_gain(esp_codec_dev_hw_gain_t *hw_gain)
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{
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float pa_voltage = hw_gain->pa_voltage;
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float dac_voltage = hw_gain->codec_dac_voltage;
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if (pa_voltage == 0.0) {
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pa_voltage = 5.0;
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}
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if (dac_voltage == 0.0) {
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dac_voltage = 3.3;
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}
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return 20 * log10(dac_voltage / pa_voltage) + hw_gain->pa_gain;
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}
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