102     /* enable pdm tx mode */  in i2s_hal_tx_set_pdm_mode_default()
145     /* enable pdm rx mode */  in i2s_hal_rx_set_pdm_mode_default()
167     /* Disable PDM tx mode and enable TDM mode (if support) */  in i2s_hal_tx_set_common_mode()
175     // In TDM mode(more than 2 channels), the ws polarity should be high first.  in i2s_hal_tx_set_common_mode()
192     /* Disable PDM rx mode and enable TDM rx mode (if support)*/  in i2s_hal_rx_set_common_mode()
200     // In TDM mode(more than 2 channels), the ws polarity should be high first.  in i2s_hal_rx_set_common_mode()
284     if (hal_cfg->mode & I2S_MODE_ADC_BUILT_IN) {  in i2s_hal_config_param()
285 …  /* In ADC built-in mode, we need to call i2s_set_adc_mode to initialize the specific ADC channel.  in i2s_hal_config_param()
286          * In the current stage, we only support ADC1 and single channel mode.  in i2s_hal_config_param()
287          * In default data mode, the ADC data is in 12-bit resolution mode.  in i2s_hal_config_param()
295     if (hal_cfg->mode & I2S_MODE_DAC_BUILT_IN) {  in i2s_hal_config_param()
301     /* Set configurations for TX mode */  in i2s_hal_config_param()
302     if (hal_cfg->mode & I2S_MODE_TX) {  in i2s_hal_config_param()
305         i2s_ll_tx_set_slave_mod(hal->dev, (hal_cfg->mode & I2S_MODE_SLAVE) != 0); //TX Slave  in i2s_hal_config_param()
307         if (hal_cfg->mode & I2S_MODE_PDM) {  in i2s_hal_config_param()
308             /* Set tx pdm mode */  in i2s_hal_config_param()
313             /* Set tx common mode */  in i2s_hal_config_param()
319     /* Set configurations for RX mode */  in i2s_hal_config_param()
320     if (hal_cfg->mode & I2S_MODE_RX) {  in i2s_hal_config_param()
323         i2s_ll_rx_set_slave_mod(hal->dev, (hal_cfg->mode & I2S_MODE_SLAVE) != 0); //RX Slave  in i2s_hal_config_param()
325         if (hal_cfg->mode & I2S_MODE_PDM) {  in i2s_hal_config_param()
326             /* Set rx pdm mode */  in i2s_hal_config_param()
331             /* Set rx common mode */  in i2s_hal_config_param()
337     /* Set configurations for full-duplex mode */  in i2s_hal_config_param()
338     if ((hal_cfg->mode & I2S_MODE_RX) && (hal_cfg->mode & I2S_MODE_TX)) {  in i2s_hal_config_param()
340         if (hal_cfg->mode & I2S_MODE_MASTER) {  in i2s_hal_config_param()