1212#define I2S0_TAG "i2s-0"
1313#define I2S1_TAG "i2s-1"
1414
15- static i2s_config_t i2s_output_config = {
15+ static i2s_config_t output_conf = {
1616 .mode = I2S_MODE_MASTER | I2S_MODE_TX
1717#if (CONFIG_AUDIO_OUTPUT_I2S_NUM == CONFIG_AUDIO_INPUT_I2S_NUM )
1818 | I2S_MODE_RX
@@ -29,7 +29,7 @@ static i2s_config_t i2s_output_config = {
2929};
3030
3131#if !defined(CONFIG_AUDIO_INPUT_NONE ) && (CONFIG_AUDIO_OUTPUT_I2S_NUM != CONFIG_AUDIO_INPUT_I2S_NUM )
32- static i2s_config_t i2s_input_config = {
32+ static i2s_config_t input_conf = {
3333 .mode = I2S_MODE_MASTER | I2S_MODE_RX
3434#ifdef CONFIG_AUDIO_INPUT_PDM
3535 | I2S_MODE_PDM
@@ -49,12 +49,12 @@ static i2s_config_t i2s_input_config = {
4949static void i2s0_init (void )
5050{
5151#if (CONFIG_AUDIO_OUTPUT_I2S_NUM == 0 )
52- ESP_ERROR_CHECK (i2s_driver_install (I2S_NUM_0 , & i2s_output_config , 0 , NULL ));
52+ ESP_ERROR_CHECK (i2s_driver_install (I2S_NUM_0 , & output_conf , 0 , NULL ));
5353#else
54- ESP_ERROR_CHECK (i2s_driver_install (I2S_NUM_0 , & i2s_input_config , 0 , NULL ));
54+ ESP_ERROR_CHECK (i2s_driver_install (I2S_NUM_0 , & input_conf , 0 , NULL ));
5555#endif
5656
57- i2s_pin_config_t pin_config = {
57+ i2s_pin_config_t pin_conf = {
5858#ifndef CONFIG_AUDIO_INPUT_PDM
5959 .bck_io_num = CONFIG_I2S0_BCLK_PIN ,
6060 .ws_io_num = CONFIG_I2S0_LRCK_PIN ,
@@ -75,13 +75,13 @@ static void i2s0_init(void)
7575 .data_in_num = CONFIG_PDM_DIN_PIN
7676#endif
7777 };
78- ESP_ERROR_CHECK (i2s_set_pin (I2S_NUM_0 , & pin_config ));
78+ ESP_ERROR_CHECK (i2s_set_pin (I2S_NUM_0 , & pin_conf ));
7979
8080 ESP_LOGI (I2S0_TAG , "initialized, bck: %d, ws: %d, dout: %d, din: %d" ,
81- pin_config .bck_io_num ,
82- pin_config .ws_io_num ,
83- pin_config .data_out_num ,
84- pin_config .data_in_num
81+ pin_conf .bck_io_num ,
82+ pin_conf .ws_io_num ,
83+ pin_conf .data_out_num ,
84+ pin_conf .data_in_num
8585 );
8686}
8787
@@ -97,12 +97,12 @@ static void i2s0_deinit(void)
9797static void i2s1_init (void )
9898{
9999#if (CONFIG_AUDIO_OUTPUT_I2S_NUM == 1 )
100- ESP_ERROR_CHECK (i2s_driver_install (I2S_NUM_1 , & i2s_output_config , 0 , NULL ));
100+ ESP_ERROR_CHECK (i2s_driver_install (I2S_NUM_1 , & output_conf , 0 , NULL ));
101101#else
102- ESP_ERROR_CHECK (i2s_driver_install (I2S_NUM_1 , & i2s_input_config , 0 , NULL ));
102+ ESP_ERROR_CHECK (i2s_driver_install (I2S_NUM_1 , & input_conf , 0 , NULL ));
103103#endif
104104
105- i2s_pin_config_t pin_config = {
105+ i2s_pin_config_t pin_conf = {
106106 .bck_io_num = CONFIG_I2S1_BCLK_PIN ,
107107 .ws_io_num = CONFIG_I2S1_LRCK_PIN ,
108108#ifdef CONFIG_AUDIO_OUTPUT_I2S1
@@ -116,13 +116,13 @@ static void i2s1_init(void)
116116 .data_in_num = -1
117117#endif
118118 };
119- ESP_ERROR_CHECK (i2s_set_pin (I2S_NUM_1 , & pin_config ));
119+ ESP_ERROR_CHECK (i2s_set_pin (I2S_NUM_1 , & pin_conf ));
120120
121121 ESP_LOGI (I2S1_TAG , "initialized, bck: %d, ws: %d, dout: %d, din: %d" ,
122- pin_config .bck_io_num ,
123- pin_config .ws_io_num ,
124- pin_config .data_out_num ,
125- pin_config .data_in_num
122+ pin_conf .bck_io_num ,
123+ pin_conf .ws_io_num ,
124+ pin_conf .data_out_num ,
125+ pin_conf .data_in_num
126126 );
127127}
128128
@@ -154,10 +154,10 @@ void i2s_output_deinit(void)
154154
155155void i2s_output_set_sample_rate (unsigned int sample_rate )
156156{
157- if (sample_rate != i2s_output_config .sample_rate ) {
158- i2s_output_config .sample_rate = sample_rate ;
157+ if (sample_rate != output_conf .sample_rate ) {
158+ output_conf .sample_rate = sample_rate ;
159159 i2s_zero_dma_buffer (CONFIG_AUDIO_OUTPUT_I2S_NUM );
160- i2s_set_sample_rates (CONFIG_AUDIO_OUTPUT_I2S_NUM , i2s_output_config .sample_rate );
160+ i2s_set_sample_rates (CONFIG_AUDIO_OUTPUT_I2S_NUM , output_conf .sample_rate );
161161 }
162162}
163163
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