73 lines
1.3 KiB
Rust
73 lines
1.3 KiB
Rust
use core::marker::PhantomData;
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use x86::io;
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use super::io::Io;
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/// Generic PIO
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#[derive(Copy, Clone)]
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pub struct Pio<T> {
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port: u16,
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value: PhantomData<T>,
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}
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impl<T> Pio<T> {
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/// Create a PIO from a given port
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pub const fn new(port: u16) -> Self {
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Pio::<T> {
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port: port,
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value: PhantomData,
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}
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}
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}
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/// Read/Write for byte PIO
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impl Io for Pio<u8> {
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type Value = u8;
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/// Read
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#[inline(always)]
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fn read(&self) -> u8 {
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unsafe { io::inb(self.port) }
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}
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/// Write
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#[inline(always)]
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fn write(&mut self, value: u8) {
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unsafe { io::outb(self.port, value) }
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}
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}
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/// Read/Write for word PIO
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impl Io for Pio<u16> {
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type Value = u16;
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/// Read
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#[inline(always)]
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fn read(&self) -> u16 {
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unsafe { io::inw(self.port) }
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}
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/// Write
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#[inline(always)]
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fn write(&mut self, value: u16) {
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unsafe { io::outw(self.port, value) }
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}
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}
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/// Read/Write for doubleword PIO
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impl Io for Pio<u32> {
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type Value = u32;
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/// Read
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#[inline(always)]
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fn read(&self) -> u32 {
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unsafe { io::inl(self.port) }
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}
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/// Write
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#[inline(always)]
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fn write(&mut self, value: u32) {
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unsafe { io::outl(self.port, value) }
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}
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}
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