ffc13174ca
* Added support for MAX98357 * Delete unused macro * Update readme * Update kconfig default settings
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/*
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* Analog Devices MAX98357 audio hal
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*
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* Mostly stubs (no I2C or volume control)
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* Configuration of mute/unmute gpio in init (connected to XSMT)
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*/
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#include "max98357.h"
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#include <driver/gpio.h>
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#include "board.h"
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#include "esp_log.h"
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static const char *TAG = "MAX98357";
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esp_err_t max98357_ctrl(audio_hal_codec_mode_t mode,
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audio_hal_ctrl_t ctrl_state);
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esp_err_t max98357_config_iface(audio_hal_codec_mode_t mode,
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audio_hal_codec_i2s_iface_t *iface);
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audio_hal_func_t AUDIO_CODEC_MAX98357_DEFAULT_HANDLE = {
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.audio_codec_initialize = max98357_init,
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.audio_codec_deinitialize = max98357_deinit,
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.audio_codec_ctrl = max98357_ctrl,
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.audio_codec_config_iface = max98357_config_iface,
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.audio_codec_set_mute = max98357_set_mute,
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.audio_codec_set_volume = max98357_set_volume,
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.audio_codec_get_volume = max98357_get_volume,
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.audio_hal_lock = NULL,
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.handle = NULL,
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};
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esp_err_t max98357_init(audio_hal_codec_config_t *codec_cfg) {
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esp_err_t ret;
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gpio_config_t io_conf;
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io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
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io_conf.mode = GPIO_MODE_OUTPUT;
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io_conf.pin_bit_mask = (1ULL << CONFIG_MAX98357_MUTE_PIN);
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io_conf.pull_down_en = 0;
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io_conf.pull_up_en = 0;
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ret = gpio_config(&io_conf);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "Mute gpio config failed for pin %d",
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CONFIG_MAX98357_MUTE_PIN);
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} else {
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gpio_set_level(CONFIG_MAX98357_MUTE_PIN, 0);
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ESP_LOGD(TAG, "Setup mute (SD) output %d\n", CONFIG_MAX98357_MUTE_PIN);
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}
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return ret;
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}
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esp_err_t max98357_set_volume(int vol) { return ESP_OK; }
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esp_err_t max98357_get_volume(int *value) { return ESP_OK; }
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esp_err_t max98357_set_mute(bool enable) {
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return gpio_set_level(CONFIG_MAX98357_MUTE_PIN, enable ? 0 : 1);
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}
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esp_err_t max98357_get_mute(bool *enabled) { return ESP_OK; }
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esp_err_t max98357_deinit(void) {
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return gpio_reset_pin(CONFIG_MAX98357_MUTE_PIN);
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}
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esp_err_t max98357_ctrl(audio_hal_codec_mode_t mode,
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audio_hal_ctrl_t ctrl_state) {
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return ESP_OK;
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}
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esp_err_t max98357_config_iface(audio_hal_codec_mode_t mode,
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audio_hal_codec_i2s_iface_t *iface) {
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return ESP_OK;
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}
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