Struct maia_httpd::uio::Uio

pub struct Uio { /* private fields */ }

UIO device.

This struct represents an UIO device.

Implementations

impl Uio

pub async fn from_num(num: usize) -> Result<Uio>

Opens an UIO using its number.

This function opens the UIO device /dev/uio<num>, where num is the parameter indicating the UIO device number.

pub async fn from_name(name: &str) -> Result<Uio>

Opens an UIO using its name.

This function searches in /sys/class/uio an UIO device whose name matches the indicated one and opens it.

pub async fn map_mapping(&self, mapping: usize) -> Result<Mapping>

Maps a memory mapping of an UIO device.

The mapping number is the number that corresponds to the mapping, as listed in /sys/class/uio/uio*/maps/map<mapping>. Mappings are numbered sequentially for each device, so devices that only support one mapping use 0 as the value for mapping.

pub async fn map_size(&self, mapping: usize) -> Result<usize>

Gives the size of a UIO mapping.

The map size is obtained from the file /sys/class/uio/uio*/maps/map*/size.

pub async fn map_offset(&self, mapping: usize) -> Result<usize>

Gives the offset of a UIO mapping.

The offset is obtained from the file /sys/class/uio/uio*/maps/map*/offset.

pub async fn map_addr(&self, mapping: usize) -> Result<usize>

Gives the address of a UIO mapping.

The address is obtained from the file /sys/class/uio/uio*/maps/map*/address.

pub async fn irq_enable(&mut self) -> Result<()>

Enables interrupts.

This function enables the interrupts for an UIO device by writing a 1 to the corresponding character device.

pub async fn irq_disable(&mut self) -> Result<()>

Disables interrupts.

This function disables the interrupts for an UIO device by writing a 0 to the corresponding character device.

pub async fn irq_wait(&mut self) -> Result<u32>

Waits for an interrupt.

This function waits for an interrupt from a UIO device by reading from the corresponding character device.

Trait Implementations

impl Debug for Uio

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.