194 lines
5.3 KiB
Rust
194 lines
5.3 KiB
Rust
#![no_std]
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#![no_main]
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#![recursion_limit="1024"] // for futures_util::select!
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#![feature(alloc_error_handler)]
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#![feature(panic_info_message)]
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#![feature(c_variadic)]
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#![feature(const_btree_new)]
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#![feature(const_in_array_repeat_expressions)]
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#![feature(naked_functions)]
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#![feature(asm)]
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extern crate alloc;
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#[cfg(feature = "target_kasli_soc")]
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use core::cell::RefCell;
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use log::{info, warn, error};
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use libboard_zynq::{timer::GlobalTimer, mpcore, gic};
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use libasync::{task, block_async};
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use libsupport_zynq::ram;
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use nb;
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use void::Void;
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use libconfig::Config;
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use libcortex_a9::l2c::enable_l2_cache;
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use libboard_artiq::{logger, identifier_read, init_gateware, pl};
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#[cfg(feature = "target_kasli_soc")]
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use libboard_artiq::io_expander;
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const ASYNC_ERROR_COLLISION: u8 = 1 << 0;
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const ASYNC_ERROR_BUSY: u8 = 1 << 1;
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const ASYNC_ERROR_SEQUENCE_ERROR: u8 = 1 << 2;
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mod proto_async;
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mod comms;
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mod rpc;
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#[cfg(ki_impl = "csr")]
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#[path = "rtio_csr.rs"]
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mod rtio;
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#[cfg(ki_impl = "acp")]
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#[path = "rtio_acp.rs"]
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mod rtio;
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mod rtio_mgt;
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mod rtio_clocking;
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mod kernel;
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mod moninj;
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mod eh_artiq;
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mod panic;
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mod mgmt;
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mod analyzer;
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mod irq;
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mod i2c;
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static mut SEEN_ASYNC_ERRORS: u8 = 0;
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pub unsafe fn get_async_errors() -> u8 {
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let errors = SEEN_ASYNC_ERRORS;
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SEEN_ASYNC_ERRORS = 0;
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errors
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}
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fn wait_for_async_rtio_error() -> nb::Result<(), Void> {
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unsafe {
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if pl::csr::rtio_core::async_error_read() != 0 {
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Ok(())
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} else {
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Err(nb::Error::WouldBlock)
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}
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}
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}
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async fn report_async_rtio_errors() {
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loop {
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let _ = block_async!(wait_for_async_rtio_error()).await;
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unsafe {
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let errors = pl::csr::rtio_core::async_error_read();
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if errors & ASYNC_ERROR_COLLISION != 0 {
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error!("RTIO collision involving channel {}",
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pl::csr::rtio_core::collision_channel_read());
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}
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if errors & ASYNC_ERROR_BUSY != 0 {
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error!("RTIO busy error involving channel {}",
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pl::csr::rtio_core::busy_channel_read());
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}
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if errors & ASYNC_ERROR_SEQUENCE_ERROR != 0 {
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error!("RTIO sequence error involving channel {}",
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pl::csr::rtio_core::sequence_error_channel_read());
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}
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SEEN_ASYNC_ERRORS = errors;
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pl::csr::rtio_core::async_error_write(errors);
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}
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}
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}
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#[cfg(feature = "target_kasli_soc")]
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async fn io_expanders_service(
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i2c_bus: RefCell<&mut libboard_zynq::i2c::I2c>,
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io_expander0: RefCell<io_expander::IoExpander>,
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io_expander1: RefCell<io_expander::IoExpander>,
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) {
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loop {
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task::r#yield().await;
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io_expander0
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.borrow_mut()
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.service(&mut i2c_bus.borrow_mut())
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.expect("I2C I/O expander #0 service failed");
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io_expander1
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.borrow_mut()
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.service(&mut i2c_bus.borrow_mut())
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.expect("I2C I/O expander #1 service failed");
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}
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}
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#[cfg(has_grabber)]
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mod grabber {
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use libasync::delay;
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use libboard_artiq::grabber;
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use libboard_zynq::time::Milliseconds;
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use crate::GlobalTimer;
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pub async fn grabber_thread(timer: GlobalTimer) {
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let mut countdown = timer.countdown();
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loop {
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grabber::tick();
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delay(&mut countdown, Milliseconds(200)).await;
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}
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}
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}
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static mut LOG_BUFFER: [u8; 1<<17] = [0; 1<<17];
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#[no_mangle]
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pub fn main_core0() {
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enable_l2_cache(0x8);
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let mut timer = GlobalTimer::start();
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let buffer_logger = unsafe {
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logger::BufferLogger::new(&mut LOG_BUFFER[..])
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};
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buffer_logger.set_uart_log_level(log::LevelFilter::Info);
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buffer_logger.register();
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log::set_max_level(log::LevelFilter::Info);
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info!("NAR3/Zynq7000 starting...");
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ram::init_alloc_core0();
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gic::InterruptController::gic(mpcore::RegisterBlock::mpcore()).enable_interrupts();
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init_gateware();
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info!("gateware ident: {}", identifier_read(&mut [0; 64]));
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i2c::init();
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#[cfg(feature = "target_kasli_soc")]
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{
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let i2c_bus = unsafe { (i2c::I2C_BUS).as_mut().unwrap() };
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let mut io_expander0 = io_expander::IoExpander::new(i2c_bus, 0).unwrap();
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let mut io_expander1 = io_expander::IoExpander::new(i2c_bus, 1).unwrap();
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io_expander0
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.init(i2c_bus)
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.expect("I2C I/O expander #0 initialization failed");
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io_expander1
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.init(i2c_bus)
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.expect("I2C I/O expander #1 initialization failed");
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// Drive TX_DISABLE to false on SFP0..3
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io_expander0.set(0, 1, false);
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io_expander1.set(0, 1, false);
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io_expander0.set(1, 1, false);
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io_expander1.set(1, 1, false);
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io_expander0.service(i2c_bus).unwrap();
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io_expander1.service(i2c_bus).unwrap();
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task::spawn(io_expanders_service(
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RefCell::new(i2c_bus),
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RefCell::new(io_expander0),
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RefCell::new(io_expander1),
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));
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}
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let cfg = match Config::new() {
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Ok(cfg) => cfg,
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Err(err) => {
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warn!("config initialization failed: {}", err);
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Config::new_dummy()
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}
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};
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rtio_clocking::init(&mut timer, &cfg);
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task::spawn(report_async_rtio_errors());
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#[cfg(has_grabber)]
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task::spawn(grabber::grabber_thread(timer));
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comms::main(timer, cfg);
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}
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