Struct devices::pci::ac97_regs::Ac97FunctionRegs

pub struct Ac97FunctionRegs {
    pub bdbar: u32,
    pub civ: u8,
    pub lvi: u8,
    pub sr: u16,
    pub picb: u16,
    pub piv: u8,
    pub cr: u8,
}

Registers for individual audio functions. Each audio function in Ac97 gets a set of these registers.

Fields

bdbar: u32

civ: u8

lvi: u8

sr: u16

picb: u16

piv: u8

cr: u8

Implementations

impl Ac97FunctionRegs

pub fn new() -> Self

Creates a new set of function registers, these can be used for the capture, playback, or microphone functions.

pub fn do_reset(&mut self)

Reset all the registers to the PoR defaults. sr should be updated by update_sr.

pub fn atomic_status_regs(&self) -> u32

Read register 4, 5, and 6 as one 32 bit word. According to the ICH spec, reading these three with one 32 bit access is allowed.

pub fn int_mask(&self) -> u16

Returns the mask for enabled interrupts. The returned mask represents the bits in the status register that should trigger and interrupt.

pub fn move_to_next_buffer(&mut self)

Sets the current buffer to the next buffer by updating CIV to PIV, and updates related fields.

pub fn has_irq(&self) -> bool

Returns irq status.

Trait Implementations

impl Clone for Ac97FunctionRegs

fn clone(&self) -> Ac97FunctionRegs

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for Ac97FunctionRegs

fn default() -> Ac97FunctionRegs

Returns the “default value” for a type.