Struct devices::pci::ac97_mixer::Ac97Mixer

pub struct Ac97Mixer {

    master_volume_l: u8,
    master_volume_r: u8,
    master_mute: bool,
    mic_muted: bool,
    mic_20db: bool,
    mic_volume: u8,
    record_gain_l: u8,
    record_gain_r: u8,
    record_gain_mute: bool,
    pcm_out_vol_l: u16,
    pcm_out_vol_r: u16,
    pcm_out_mute: bool,
    power_down_control: u16,
    ext_audio_status_ctl: u16,
    pcm_front_dac_rate: u16,
    pcm_surr_dac_rate: u16,
    pcm_lfe_dac_rate: u16,
}

Ac97Mixer holds the mixer state for the AC97 bus. The mixer is used by calling the readb/readw/readl functions to read register values and the writeb/writew/writel functions to set register values.

Fields

master_volume_l: u8

master_volume_r: u8

master_mute: bool

mic_muted: bool

mic_20db: bool

mic_volume: u8

record_gain_l: u8

record_gain_r: u8

record_gain_mute: bool

pcm_out_vol_l: u16

pcm_out_vol_r: u16

pcm_out_mute: bool

power_down_control: u16

ext_audio_status_ctl: u16

pcm_front_dac_rate: u16

pcm_surr_dac_rate: u16

pcm_lfe_dac_rate: u16

Implementations

impl Ac97Mixer

pub fn new() -> Self

Creates an ‘Ac97Mixer’ with the standard default register values.

pub fn reset(&mut self)

pub fn readw(&self, offset: u64) -> u16

Reads a word from the register at offset.

pub fn writew(&mut self, offset: u64, val: u16)

Writes a word val to the register offset.

pub fn get_master_volume(&self) -> (bool, f64, f64)

Returns the mute status and left and right attenuation from the master volume register.

pub fn get_sample_rate(&self) -> u16

Returns the front sample rate (reg 0x2c).

fn get_master_reg(&self) -> u16

fn set_master_reg(&mut self, val: u16)

fn get_mic_volume(&self) -> u16

fn set_mic_volume(&mut self, val: u16)

fn get_pcm_out_volume(&self) -> u16

fn set_pcm_out_volume(&mut self, val: u16)

fn get_record_gain_reg(&self) -> u16

fn set_record_gain_reg(&mut self, val: u16)

fn set_power_down_reg(&mut self, val: u16)