net: maintain NET_PENDING flag

This commit is contained in:
Astro 2019-03-14 22:02:08 +01:00
parent 689f33304d
commit 384b537555
4 changed files with 30 additions and 7 deletions

1
Cargo.lock generated
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@ -4,6 +4,7 @@
name = "adc2tcp"
version = "0.0.0"
dependencies = [
"bare-metal 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
"cortex-m 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
"cortex-m-log 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"cortex-m-rt 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",

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@ -22,6 +22,7 @@ default-target = "thumbv7em-none-eabihf"
panic-abort = { version = "0.3.1" }
panic-semihosting = { version = "0.5.1", optional = true }
log = "0.4"
bare-metal = "0.2"
cortex-m = "0.5"
cortex-m-rt = { version = "0.6", features = ["device"] }
cortex-m-log = { version = "0.4", features = ["log-integration"] }

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@ -122,14 +122,16 @@ fn main() -> ! {
// Update watchdog
wd.feed();
led_red.off();
led_red.on();
cortex_m::interrupt::free(|cs| {
if !net::is_pending(cs) {
// Wait for interrupts
// if net.is_pending() {
led_green.on();
wfi();
led_green.off();
// }
net::clear_pending(cs);
}
});
led_red.off();
}
})
}

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@ -1,6 +1,9 @@
//! As there is only one peripheral, supporting data structures are
//! declared once and globally.
use core::cell::RefCell;
use cortex_m::interrupt::Mutex;
use bare_metal::CriticalSection;
use stm32f4xx_hal::{
stm32::{interrupt, Peripherals, NVIC, ETHERNET_MAC, ETHERNET_DMA},
};
@ -17,6 +20,7 @@ static mut TX_RING: Option<[RingEntry<TxDescriptor>; 2]> = None;
// TODO: generate one from device id
const SRC_MAC: [u8; 6] = [0x00, 0x00, 0xDE, 0xAD, 0xBE, 0xEF];
static NET_PENDING: Mutex<RefCell<bool>> = Mutex::new(RefCell::new(false));
pub fn run<F>(nvic: &mut NVIC, ethernet_mac: ETHERNET_MAC, ethernet_dma: ETHERNET_DMA, f: F) -> !
where
@ -79,6 +83,21 @@ impl<'a> NetInterface<'a> {
/// and TODO: set pending flag
#[interrupt]
fn ETH() {
cortex_m::interrupt::free(|cs| {
*NET_PENDING.borrow(cs)
.borrow_mut() = true;
});
let p = unsafe { Peripherals::steal() };
stm32_eth::eth_interrupt_handler(&p.ETHERNET_DMA);
}
pub fn is_pending(cs: &CriticalSection) -> bool {
*NET_PENDING.borrow(cs)
.borrow()
}
pub fn clear_pending(cs: &CriticalSection) {
*NET_PENDING.borrow(cs)
.borrow_mut() = false;
}