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-rw-r--r--app/src/log.rs95
1 files changed, 0 insertions, 95 deletions
diff --git a/app/src/log.rs b/app/src/log.rs
deleted file mode 100644
index 6cfba8f..0000000
--- a/app/src/log.rs
+++ /dev/null
@@ -1,95 +0,0 @@
-use rb::{Reader, RingBuffer, Writer};
-
-use core::fmt::{self, Write};
-use embedded_hal::{digital::v2::OutputPin, serial};
-use trinket_m0::{
- gpio::{Pa6, Pa7, PfD},
- sercom::{Sercom0Pad2, Sercom0Pad3, UART0},
-};
-
-static mut LB: RingBuffer<u8> = RingBuffer::<u8>::new(0);
-
-struct JoinedRingBuffer<'a> {
- lbr: Reader<'a, u8>,
- lbw: Writer<'a, u8>,
-}
-
-impl<'a> JoinedRingBuffer<'a> {
- const fn new(rb: &'a RingBuffer<u8>) -> Self {
- let (lbr, lbw) = rb.split();
- Self { lbr: lbr, lbw: lbw }
- }
-}
-
-impl Write for JoinedRingBuffer<'_> {
- fn write_str(&mut self, s: &str) -> Result<(), fmt::Error> {
- for b in s.bytes() {
- if let Err(_) = self.lbw.unshift(b) {
- // Ignore buffer full errors for logging.
- return Ok(());
- }
- }
- Ok(())
- }
-}
-
-static mut LOGBUF: JoinedRingBuffer = unsafe { JoinedRingBuffer::new(&LB) };
-static mut UART0: usize = 0;
-
-pub struct Processor<W, L> {
- uart: W,
- led: L,
-}
-
-impl<W, L> Processor<W, L>
-where
- W: serial::Write<u8>,
- L: OutputPin,
-{
- pub fn new(uart: W, led: L) -> Self {
- // Unsafe because we're creating a mutable alias.
- unsafe { UART0 = core::mem::transmute(&uart) };
- Self {
- uart: uart,
- led: led,
- }
- }
-
- pub fn task(&mut self) {
- // Unsafe due to mutable static.
- if unsafe { LOGBUF.lbr.is_empty() } {
- return;
- }
- self.led.set_high().ok();
- // Unsafe due to mutable static.
- while let Some(b) = unsafe { LOGBUF.lbr.shift() } {
- nb::block!(self.uart.write(b)).ok();
- }
- self.led.set_low().ok();
- }
-}
-
-// Write to the UART right now, instead of putting it on a ring
-// buffer. This function is a huge hack, and only useful for debugging
-// either before the main loop starts or if the ring buffer is broken.
-pub unsafe fn write_fmt_now(args: fmt::Arguments, nl: bool) {
- if UART0 == 0 {
- return;
- }
- let uart: &mut UART0<Sercom0Pad3<Pa7<PfD>>, Sercom0Pad2<Pa6<PfD>>, (), ()> =
- core::mem::transmute(UART0);
- fmt::write(uart, args).expect("writing fmt now to uart");
- if nl {
- uart.write_str("\r\n").expect("writing nl now to uart");
- }
-}
-
-pub fn write_fmt(args: fmt::Arguments, nl: bool) {
- // Unsafe due to mutable static.
- unsafe {
- fmt::write(&mut LOGBUF, args).expect("writing fmt to log");
- if nl {
- LOGBUF.write_str("\r\n").expect("writing nl to log");
- }
- }
-}