1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
use ax_plat::console::ConsoleIf;
struct ConsoleIfImpl;
#[impl_plat_interface]
impl ConsoleIf for ConsoleIfImpl {
/// Writes given bytes to the console.
fn write_bytes(bytes: &[u8]) {
let s = core::str::from_utf8(bytes).unwrap_or_default();
let mut remaining = s;
while let Some(pos) = remaining.find('\n') {
// 打印 '\n' 之前的部分
somehal::console::_write_str(&remaining[..pos]);
// 打印 "\r\n"
somehal::console::_write_str("\r\n");
// 继续处理剩余部分
remaining = &remaining[pos + 1..];
}
// 打印最后剩余的部分（如果有的话）
if !remaining.is_empty() {
somehal::console::_write_str(remaining);
}
}
/// Reads bytes from the console into the given mutable slice.
///
/// Returns the number of bytes read.
fn read_bytes(bytes: &mut [u8]) -> usize {
let mut read_len = 0;
while read_len < bytes.len() {
if let Some(c) = somehal::console::read_byte() {
bytes[read_len] = c;
} else {
break;
}
read_len += 1;
}
read_len
}
/// Returns the IRQ number for the console input interrupt.
///
/// Returns `None` if input interrupt is not supported.
#[cfg(feature = "irq")]
fn irq_num() -> Option<usize> {
None
}
}