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pounder_test
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use atomics

This commit is contained in:
Robert Jördens 2019-04-30 11:42:05 +00:00
parent 768b067f7f
commit 1494761f35
1 changed files with 15 additions and 10 deletions
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25
src/main.rs
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@ -15,6 +15,7 @@ extern crate log;
use core::ptr;
use core::cell::RefCell;
use core::fmt::Write;
use core::sync::atomic::{AtomicU32, AtomicBool, Ordering};
use cortex_m_rt::{entry, exception};
use stm32h7::stm32h7x3::{self as stm32, Peripherals, CorePeripherals, interrupt};
use cortex_m::interrupt::Mutex;
@ -510,13 +511,14 @@ static SPIP: Mutex<RefCell<SpiPs>> = Mutex::new(RefCell::new(None));
#[link_section = ".sram1.datspi"]
static mut DAT: u32 = 0x201; // EN | CSTART
static TIME: Mutex<RefCell<i64>> = Mutex::new(RefCell::new(0));
static TIME: AtomicU32 = AtomicU32::new(0);
static ETHERNET_PENDING: AtomicBool = AtomicBool::new(true);
#[link_section = ".sram3.eth"]
static mut ETHERNET: eth::Device = eth::Device::new();
const TCP_RX_BUFFER_SIZE: usize = 4096;
const TCP_TX_BUFFER_SIZE: usize = 4096;
const TCP_RX_BUFFER_SIZE: usize = 8192;
const TCP_TX_BUFFER_SIZE: usize = 8192;
macro_rules! create_socket {
($set:ident, $rx_storage:ident, $tx_storage:ident, $target:ident) => (
@ -656,7 +658,8 @@ fn main() -> ! {
let mut last = 0;
loop {
let time = cortex_m::interrupt::free(|cs| *TIME.borrow(cs).borrow());
// if ETHERNET_PENDING.swap(false, Ordering::Relaxed) { }
let time = TIME.load(Ordering::Relaxed);
{
let socket = &mut *sockets.get::<net::socket::TcpSocket>(tcp_handle0);
if !(socket.is_open() || socket.is_listening()) {
@ -670,12 +673,13 @@ fn main() -> ! {
.unwrap_or_else(|e| warn!("TCP send error: {:?}", e));
}
}
match iface.poll(&mut sockets, net::time::Instant::from_millis(time)) {
Ok(_) => (),
Err(net::Error::Unrecognized) => (),
Err(e) => info!("iface poll error: {:?}", e)
if !match iface.poll(&mut sockets, net::time::Instant::from_millis(time as i64)) {
Ok(changed) => changed,
Err(net::Error::Unrecognized) => true,
Err(e) => { info!("iface poll error: {:?}", e); true }
} {
cortex_m::asm::wfi();
}
cortex_m::asm::wfi();
}
}
@ -729,12 +733,13 @@ fn SPI1() {
#[interrupt]
fn ETH() {
ETHERNET_PENDING.store(true, Ordering::Relaxed);
unsafe { eth::interrupt_handler() }
}
#[exception]
fn SysTick() {
cortex_m::interrupt::free(|cs| *TIME.borrow(cs).borrow_mut() += 1);
TIME.fetch_add(1, Ordering::Relaxed);
}
#[exception]