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Astro 2019-08-11 00:55:27 +02:00
parent e135b27c13
commit 1f9ad5ff62
12 changed files with 28 additions and 29 deletions

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@ -1,4 +1,3 @@
use core::mem::uninitialized;
use bit_field::BitField; use bit_field::BitField;
use super::{regs::*, asm}; use super::{regs::*, asm};
use crate::regs::RegisterW; use crate::regs::RegisterW;
@ -73,7 +72,7 @@ pub struct L1Entry(u32);
impl L1Entry { impl L1Entry {
#[inline(always)] #[inline(always)]
pub fn section(phys_base: u32, section: L1Section) -> Self { pub fn section(phys_base: u32, section: L1Section) -> Self {
/// Must be aligned to 1 MB // Must be aligned to 1 MB
assert!(phys_base & 0x000f_ffff == 0); assert!(phys_base & 0x000f_ffff == 0);
let mut entry = L1Entry(phys_base); let mut entry = L1Entry(phys_base);
@ -382,8 +381,4 @@ pub fn with_mmu<F: FnMut() -> !>(l1table: &L1Table, mut f: F) -> ! {
asm::isb(); asm::isb();
f(); f();
// table must live until here
drop(l1table.table);
unreachable!();
} }

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@ -1,5 +1,5 @@
use crate::{register_bit, register_bits}; use crate::{register_bit, register_bits};
use crate::regs::{RegisterR, RegisterW, RegisterRW}; use crate::regs::{RegisterR, RegisterW};
macro_rules! def_reg_r { macro_rules! def_reg_r {
($name:tt, $type: ty, $asm_instr:tt) => { ($name:tt, $type: ty, $asm_instr:tt) => {

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@ -219,7 +219,7 @@ impl<RX, TX> Eth<RX, TX> {
}); });
} }
fn init(mut self) -> Self { fn init(self) -> Self {
// Clear the Network Control register. // Clear the Network Control register.
self.regs.net_ctrl.write(regs::NetCtrl::zeroed()); self.regs.net_ctrl.write(regs::NetCtrl::zeroed());
self.regs.net_ctrl.write(regs::NetCtrl::zeroed().clear_stat_regs(true)); self.regs.net_ctrl.write(regs::NetCtrl::zeroed().clear_stat_regs(true));

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@ -1,6 +1,6 @@
use volatile_register::{RO, WO, RW}; use volatile_register::{RO, WO, RW};
use crate::{register, register_bit, register_bits, register_bits_typed, regs::*}; use crate::{register, register_bit, register_bits, register_bits_typed};
#[repr(C)] #[repr(C)]
pub struct RegisterBlock { pub struct RegisterBlock {

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@ -1,5 +1,5 @@
use core::ops::Deref; use core::ops::Deref;
use crate::{register, register_bit, register_bits, register_bits_typed, regs::*}; use crate::{register, register_bit, register_bits, regs::*};
use super::MTU; use super::MTU;
#[derive(Debug)] #[derive(Debug)]
@ -18,10 +18,12 @@ pub struct DescEntry {
} }
register!(desc_word0, DescWord0, RW, u32); register!(desc_word0, DescWord0, RW, u32);
/// true if owned by software, false if owned by hardware register_bit!(desc_word0,
register_bit!(desc_word0, used, 0); /// true if owned by software, false if owned by hardware
/// mark last desc in list used, 0);
register_bit!(desc_word0, wrap, 1); register_bit!(desc_word0,
/// mark last desc in list
wrap, 1);
register_bits!(desc_word0, address, u32, 2, 31); register_bits!(desc_word0, address, u32, 2, 31);
register!(desc_word1, DescWord1, RW, u32); register!(desc_word1, DescWord1, RW, u32);

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@ -1,5 +1,5 @@
use core::ops::{Deref, DerefMut}; use core::ops::{Deref, DerefMut};
use crate::{register, register_bit, register_bits, register_bits_typed, regs::*}; use crate::{register, register_bit, register_bits, regs::*};
use crate::println; use crate::println;
use super::{MTU, regs}; use super::{MTU, regs};
@ -20,10 +20,12 @@ register_bits!(desc_word1, csum_offload_errors, u8, 20, 22);
register_bit!(desc_word1, late_collision_tx_error, 26); register_bit!(desc_word1, late_collision_tx_error, 26);
register_bit!(desc_word1, ahb_frame_corruption, 27); register_bit!(desc_word1, ahb_frame_corruption, 27);
register_bit!(desc_word1, retry_limit_exceeded, 29); register_bit!(desc_word1, retry_limit_exceeded, 29);
/// marks last descriptor in list register_bit!(desc_word1,
register_bit!(desc_word1, wrap, 30); /// marks last descriptor in list
/// true if owned by software, false if owned by hardware wrap, 30);
register_bit!(desc_word1, used, 31); register_bit!(desc_word1,
/// true if owned by software, false if owned by hardware
used, 31);
/// Number of descriptors /// Number of descriptors
pub const DESCS: usize = 8; pub const DESCS: usize = 8;

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@ -5,6 +5,8 @@
#![feature(naked_functions)] #![feature(naked_functions)]
#![feature(compiler_builtins_lib)] #![feature(compiler_builtins_lib)]
#![feature(never_type)] #![feature(never_type)]
// TODO: disallow unused/dead_code when code moves into a lib crate
#![allow(dead_code)]
use core::mem::uninitialized; use core::mem::uninitialized;
@ -79,7 +81,7 @@ fn main() {
let mut rx_descs: [eth::rx::DescEntry; 8] = unsafe { uninitialized() }; let mut rx_descs: [eth::rx::DescEntry; 8] = unsafe { uninitialized() };
let mut rx_buffers = [[0u8; 1536]; 8]; let mut rx_buffers = [[0u8; 1536]; 8];
let mut eth = eth.start_rx(&mut rx_descs, &mut rx_buffers); let eth = eth.start_rx(&mut rx_descs, &mut rx_buffers);
let mut tx_descs: [eth::tx::DescEntry; 8] = unsafe { uninitialized() }; let mut tx_descs: [eth::tx::DescEntry; 8] = unsafe { uninitialized() };
let mut tx_buffers = [[0u8; 1536]; 8]; let mut tx_buffers = [[0u8; 1536]; 8];
let mut eth = eth.start_tx(&mut tx_descs, &mut tx_buffers); let mut eth = eth.start_tx(&mut tx_descs, &mut tx_buffers);
@ -111,7 +113,6 @@ fn main() {
None => println!("eth tx shortage"), None => println!("eth tx shortage"),
} }
} }
panic!("End");
} }
#[panic_handler] #[panic_handler]

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@ -1,6 +1,6 @@
///! Register definitions for System Level Control ///! Register definitions for System Level Control
use volatile_register::{RO, WO, RW}; use volatile_register::{RO, RW};
use crate::{register, register_at, use crate::{register, register_at,
register_bit, register_bits, register_bits_typed, register_bit, register_bits, register_bits_typed,
regs::RegisterW, regs::RegisterRW}; regs::RegisterW, regs::RegisterRW};

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@ -9,7 +9,7 @@ pub fn get_uart() -> &'static mut Uart {
unsafe { unsafe {
match &mut UART { match &mut UART {
None => { None => {
let mut uart = Uart::serial(UART_RATE); let uart = Uart::serial(UART_RATE);
UART = Some(uart); UART = Some(uart);
UART.as_mut().unwrap() UART.as_mut().unwrap()
} }
@ -23,7 +23,7 @@ macro_rules! print {
($($arg:tt)*) => ({ ($($arg:tt)*) => ({
use core::fmt::Write; use core::fmt::Write;
let uart = crate::stdio::get_uart(); let uart = crate::stdio::get_uart();
write!(uart, $($arg)*); let _ = write!(uart, $($arg)*);
}) })
} }
@ -32,8 +32,8 @@ macro_rules! println {
($($arg:tt)*) => ({ ($($arg:tt)*) => ({
use core::fmt::Write; use core::fmt::Write;
let uart = crate::stdio::get_uart(); let uart = crate::stdio::get_uart();
write!(uart, $($arg)*); let _ = write!(uart, $($arg)*);
write!(uart, "\r\n"); let _ = write!(uart, "\r\n");
while !uart.tx_fifo_empty() {} while !uart.tx_fifo_empty() {}
}) })
} }

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@ -37,7 +37,7 @@ pub fn configure(regs: &mut RegisterBlock, mut clk: u32, baud: u32) {
} }
match best { match best {
Some((cd, bdiv, error)) => { Some((cd, bdiv, _error)) => {
regs.baud_rate_gen.write(BaudRateGen::zeroed().cd(cd)); regs.baud_rate_gen.write(BaudRateGen::zeroed().cd(cd));
regs.baud_rate_divider.write(BaudRateDiv::zeroed().bdiv(bdiv)); regs.baud_rate_divider.write(BaudRateDiv::zeroed().bdiv(bdiv));
} }

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@ -1,5 +1,4 @@
use core::fmt; use core::fmt;
use volatile_register::RW;
use crate::regs::*; use crate::regs::*;
use crate::slcr; use crate::slcr;

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@ -1,6 +1,6 @@
use volatile_register::{RO, WO, RW}; use volatile_register::{RO, WO, RW};
use crate::{register, register_bit, register_bits, register_bits_typed, register_at, regs::*}; use crate::{register, register_bit, register_bits, register_bits_typed, register_at};
#[repr(u8)] #[repr(u8)]
pub enum ChannelMode { pub enum ChannelMode {