Trait sunrise_libuser::io::Io

pub trait Io {
    type Value: Copy;
    fn read(&self) -> Self::Value;
    fn write(&mut self, value: Self::Value);

    fn readf(&self, flags: Self::Value) -> bool
    where
        Self::Value: PartialEq<Self::Value>,
        Self::Value: BitAnd<Self::Value>,
        <Self::Value as BitAnd<Self::Value>>::Output == Self::Value,
    { ... }
    fn writef(&mut self, flags: Self::Value, value: bool)
    where
        Self::Value: PartialEq<Self::Value>,
        Self::Value: BitAnd<Self::Value>,
        Self::Value: BitOr<Self::Value>,
        Self::Value: Not,
        <Self::Value as BitAnd<Self::Value>>::Output == Self::Value,
        <Self::Value as BitOr<Self::Value>>::Output == Self::Value,
        <Self::Value as Not>::Output == Self::Value,
    { ... }
}

The Io trait allows for accessing device IO in a generic way, abstracting over different IO accesses (Port IO and Memory Mapped IO).

Associated Types

type Value: Copy

The width of the IO access. Should be a primitive type like u8, u16, u32...

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Required methods

fn read(&self) -> Self::Value

Reads from this Io.

fn write(&mut self, value: Self::Value)

Writes value to this Io.

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Provided methods

fn readf(&self, flags: Self::Value) -> bool where
    Self::Value: PartialEq<Self::Value>,
    Self::Value: BitAnd<Self::Value>,
    <Self::Value as BitAnd<Self::Value>>::Output == Self::Value, 

Read from this Io, and mask the value with flags.

fn writef(&mut self, flags: Self::Value, value: bool) where
    Self::Value: PartialEq<Self::Value>,
    Self::Value: BitAnd<Self::Value>,
    Self::Value: BitOr<Self::Value>,
    Self::Value: Not,
    <Self::Value as BitAnd<Self::Value>>::Output == Self::Value,
    <Self::Value as BitOr<Self::Value>>::Output == Self::Value,
    <Self::Value as Not>::Output == Self::Value, 

Mask value with flags, and write it to this device address. Note that this causes a read!

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Implementors

impl Io for Pio<u16>

Read/Write for word PIO

type Value = u16

fn read(&self) -> u16

Read

fn write(&mut self, value: u16)

Write

impl Io for Pio<u32>

Read/Write for doubleword PIO

type Value = u32

fn read(&self) -> u32

Read

fn write(&mut self, value: u32)

Write

impl Io for Pio<u8>

Read/Write for byte PIO

type Value = u8

fn read(&self) -> u8

Read

fn write(&mut self, value: u8)

Write

impl<T> Io for Mmio<T> where
    T: Copy, 

type Value = T

fn read(&self) -> T

Performs a volatile read of the value.

fn write(&mut self, value: T)

Performs a volatile write of the value.

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