224c43f761
* Port previous ethernet scheme * Add ipd * Fix initfs rebuilds, use QEMU user networking addresses in ipd * Add tcp/udp, netutils, dns, and network config * Add fsync to network driver * Add dns, router, subnet by default * Fix e1000 driver. Make ethernet and IP non-blocking to avoid deadlocks * Add orbital server, WIP * Add futex * Add orbutils and orbital * Update libstd, orbutils, and orbital Move ANSI key encoding to vesad * Add orbital assets * Update orbital * Update to add login manager * Add blocking primitives, block for most things except waitpid, update orbital * Wait in waitpid and IRQ, improvements for other waits * Fevent in root scheme * WIP: Switch to using fevent * Reorganize * Event based e1000d driver * Superuser-only access to some network schemes, display, and disk * Superuser root and irq schemes * Fix orbital
90 lines
1.9 KiB
Rust
90 lines
1.9 KiB
Rust
use core::marker::PhantomData;
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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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let value: u8;
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unsafe {
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asm!("in $0, $1" : "={al}"(value) : "{dx}"(self.port) : "memory" : "intel", "volatile");
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}
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value
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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 {
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asm!("out $1, $0" : : "{al}"(value), "{dx}"(self.port) : "memory" : "intel", "volatile");
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}
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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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let value: u16;
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unsafe {
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asm!("in $0, $1" : "={ax}"(value) : "{dx}"(self.port) : "memory" : "intel", "volatile");
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}
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value
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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 {
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asm!("out $1, $0" : : "{ax}"(value), "{dx}"(self.port) : "memory" : "intel", "volatile");
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}
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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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let value: u32;
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unsafe {
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asm!("in $0, $1" : "={eax}"(value) : "{dx}"(self.port) : "memory" : "intel", "volatile");
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}
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value
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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 {
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asm!("out $1, $0" : : "{eax}"(value), "{dx}"(self.port) : "memory" : "intel", "volatile");
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}
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}
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}
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