29 esp_err_t dac_pad_get_io_num(dac_channel_t channel, gpio_num_t *gpio_num)  in dac_pad_get_io_num()  argument
31     ESP_RETURN_ON_FALSE(channel < SOC_DAC_CHAN_NUM, ESP_ERR_INVALID_ARG, TAG, "DAC channel error");  in dac_pad_get_io_num()
33     *gpio_num = (gpio_num_t)dac_periph_signal.dac_channel_io_num[channel];  in dac_pad_get_io_num()
38 static esp_err_t dac_rtc_pad_init(dac_channel_t channel)  in dac_rtc_pad_init()  argument
40     ESP_RETURN_ON_FALSE(channel < SOC_DAC_CHAN_NUM, ESP_ERR_INVALID_ARG, TAG, "DAC channel error");  in dac_rtc_pad_init()
43     dac_pad_get_io_num(channel, &gpio_num);  in dac_rtc_pad_init()
52 esp_err_t dac_output_enable(dac_channel_t channel)  in dac_output_enable()  argument
54     ESP_RETURN_ON_FALSE(channel < SOC_DAC_CHAN_NUM, ESP_ERR_INVALID_ARG, TAG, "DAC channel error");  in dac_output_enable()
56     dac_rtc_pad_init(channel);  in dac_output_enable()
58     dac_ll_power_on(channel);  in dac_output_enable()
65 esp_err_t dac_output_disable(dac_channel_t channel)  in dac_output_disable()  argument
67     ESP_RETURN_ON_FALSE(channel < SOC_DAC_CHAN_NUM, ESP_ERR_INVALID_ARG, TAG, "DAC channel error");  in dac_output_disable()
70     dac_ll_power_down(channel);  in dac_output_disable()
76 esp_err_t dac_output_voltage(dac_channel_t channel, uint8_t dac_value)  in dac_output_voltage()  argument
78     ESP_RETURN_ON_FALSE(channel < SOC_DAC_CHAN_NUM, ESP_ERR_INVALID_ARG, TAG, "DAC channel error");  in dac_output_voltage()
81     dac_ll_update_output_value(channel, dac_value);  in dac_output_voltage()
87 esp_err_t dac_out_voltage(dac_channel_t channel, uint8_t dac_value)  in dac_out_voltage()  argument
89     ESP_RETURN_ON_FALSE(channel < SOC_DAC_CHAN_NUM, ESP_ERR_INVALID_ARG, TAG, "DAC channel error");  in dac_out_voltage()
92     dac_ll_update_output_value(channel, dac_value);  in dac_out_voltage()