87 lines
1.9 KiB
Rust
87 lines
1.9 KiB
Rust
use crate::RAW_FRAME_LENGTH_MAX;
|
|
|
|
/// Struct for TX Buffer on the hardware
|
|
/// TODO: Should be a singleton
|
|
pub struct TxBuffer {
|
|
start_addr: u16,
|
|
// The following two fields are controlled by firmware
|
|
next_addr: u16,
|
|
tail_addr: u16
|
|
}
|
|
|
|
impl TxBuffer {
|
|
pub fn new() -> Self {
|
|
TxBuffer {
|
|
start_addr: 0x0000,
|
|
next_addr: 0x0001,
|
|
tail_addr: 0x0000
|
|
}
|
|
}
|
|
|
|
pub fn set_start_addr(&mut self, addr: u16) {
|
|
self.start_addr = addr;
|
|
}
|
|
pub fn get_start_addr(& self) -> u16{
|
|
self.start_addr
|
|
}
|
|
|
|
pub fn set_next_addr(&mut self, addr: u16) {
|
|
self.next_addr = addr;
|
|
}
|
|
pub fn get_next_addr(& self) -> u16 {
|
|
self.next_addr
|
|
}
|
|
|
|
pub fn set_tail_addr(&mut self, addr: u16) {
|
|
self.tail_addr = addr;
|
|
}
|
|
pub fn get_tail_addr(& self) -> u16{
|
|
self.tail_addr
|
|
}
|
|
}
|
|
|
|
/// Struct for TX Packet
|
|
/// TODO: Generalise MAC addresses
|
|
pub struct TxPacket {
|
|
frame: [u8; RAW_FRAME_LENGTH_MAX],
|
|
frame_length: usize
|
|
}
|
|
|
|
impl TxPacket {
|
|
pub fn new() -> Self {
|
|
TxPacket {
|
|
frame: [0; RAW_FRAME_LENGTH_MAX],
|
|
frame_length: 0
|
|
}
|
|
}
|
|
|
|
/// Currently, frame data is copied from an external buffer
|
|
pub fn update_frame(&mut self, raw_frame: &[u8], raw_frame_length: usize) {
|
|
self.frame_length = raw_frame_length;
|
|
for i in 0..self.frame_length {
|
|
self.frame[i] = raw_frame[i];
|
|
}
|
|
}
|
|
pub fn write_frame_to(&self, frame: &mut [u8]) {
|
|
for i in 0..self.frame_length {
|
|
frame[i] = self.frame[i];
|
|
}
|
|
}
|
|
|
|
pub fn get_frame_length(&self) -> usize {
|
|
self.frame_length
|
|
}
|
|
|
|
pub fn get_frame(&self) -> &[u8] {
|
|
&self.frame
|
|
}
|
|
pub fn get_mut_frame(&mut self) -> &mut [u8] {
|
|
&mut self.frame
|
|
}
|
|
|
|
/// TODO: Mostly for debugging only?
|
|
pub fn get_frame_byte(&self, i: usize) -> u8 {
|
|
self.frame[i]
|
|
}
|
|
}
|