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// SPDX-License-Identifier: MIT
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//
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// Copyright (c) 2018-2019 Andre Richter <andre.o.richter@gmail.com>
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// Rust embedded logo for `make doc`.
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#![doc(html_logo_url = "https://git.io/JeGIp")]
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//! The `kernel`
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//!
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//! The `kernel` is composed by glueing together hardware-specific Board Support
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//! Package (`BSP`) code and hardware-agnostic `kernel` code through the
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//! [`kernel::interface`] traits.
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//!
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//! [`kernel::interface`]: interface/index.html
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#![feature(format_args_nl)]
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#![feature(panic_info_message)]
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#![feature(trait_alias)]
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#![no_main]
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#![no_std]
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// Conditionally includes the selected `architecture` code, which provides the
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// `_start()` function, the first function to run.
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mod arch;
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// `_start()` then calls `runtime_init::init()`, which on completion, jumps to
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// `kernel_entry()`.
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mod runtime_init;
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// Conditionally includes the selected `BSP` code.
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mod bsp;
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mod interface;
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mod panic_wait;
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mod print;
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/// Entrypoint of the `kernel`.
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fn kernel_entry() -> ! {
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use interface::console::{Read, Statistics};
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// Run the BSP's initialization code.
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bsp::init();
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// UART should be functional now. Wait for user to hit Enter.
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loop {
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if bsp::console().read_char() == '\n' {
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break;
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}
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}
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println!("[0] Booting on: <{}>.", bsp::board_name());
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println!("[1] Drivers loaded:");
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for (i, driver) in bsp::device_drivers().iter().enumerate() {
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println!(" {}. {}", i + 1, driver.compatible());
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}
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println!("[2] Chars written: {}", bsp::console().chars_written());
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println!("[3] Echoing input now.");
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loop {
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print!("{}", bsp::console().read_char());
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}
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}
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