Refactor the bike library until it compiles with no_std

Theoretically, this is the first step to getting to running on the pico

Cargo.lock

@@ -373,6 +373,19 @@ version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
 
+[[package]]
+name = "bike"
+version = "0.1.0"
+dependencies = [
+ "cortex-m",
+ "cortex-m-rt",
+ "embedded-hal",
+ "fugit",
+ "lights-core",
+ "panic-halt",
+ "rp-pico",
+]
+
 [[package]]
 name = "bit-set"
 version = "0.5.3"

Cargo.toml

@@ -2,6 +2,7 @@
 resolver = "2"
 members = [
     "authdb",
+    "bike-lights/bike",
     "bike-lights/core",
     "bike-lights/simulator",
     "changeset",

bike-lights/bike/.cargo/config

@@ -0,0 +1,12 @@
+[build]
+target = "thumbv6m-none-eabi"
+
+[target.thumbv6m-none-eabi]
+rustflags = [
+    "-C", "link-arg=--nmagic",
+    "-C", "link-arg=-Tlink.x",
+    "-C", "inline-threshold=5",
+    "-C", "no-vectorize-loops",
+]
+
+runner = "elf2uf2-rs -d"

bike-lights/bike/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "bike"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+cortex-m = "0.7.7"
+cortex-m-rt = "0.7.3"
+embedded-hal = "0.2.7"
+fugit = "0.3.7"
+panic-halt = "0.2.0"
+rp-pico = "0.8.0"
+lights-core = { path = "../core" }

bike-lights/bike/src/main.rs

@@ -0,0 +1,10 @@
+#![no_main]
+#![no_std]
+
+use panic_halt as _;
+use rp_pico::entry;
+
+#[entry]
+fn main() -> ! {
+    loop {}
+}

bike-lights/core/src/lib.rs

@@ -1,9 +1,26 @@
+#![no_std]
+
+extern crate alloc;
+use alloc::boxed::Box;
+use core::{clone::Clone, cmp::PartialEq, ops::Sub, option::Option};
+
 mod patterns;
 pub use patterns::*;
 
 mod types;
 pub use types::{DashboardPattern, Pattern, RGB};
 
+#[derive(Clone, Copy)]
+pub struct Instant(pub u128);
+
+impl Sub for Instant {
+    type Output = Self;
+
+    fn sub(self, r: Self) -> Self::Output {
+        Self(self.0 - r.0)
+    }
+}
+
 pub const FPS: u8 = 30;
 
 pub trait UI {
@@ -12,13 +29,13 @@ pub trait UI {
 }
 
 pub trait Animation {
-    fn tick(&mut self, time: std::time::Instant) -> (DashboardPattern, Pattern);
+    fn tick(&mut self, time: Instant) -> (DashboardPattern, Pattern);
 }
 
 pub struct DefaultAnimation {}
 
 impl Animation for DefaultAnimation {
-    fn tick(&mut self, _: std::time::Instant) -> (DashboardPattern, Pattern) {
+    fn tick(&mut self, _: Instant) -> (DashboardPattern, Pattern) {
         (PRIDE_DASHBOARD, PRIDE)
     }
 }
@@ -27,9 +44,9 @@ pub struct Fade {
     starting_dashboard: DashboardPattern,
     starting_lights: Pattern,
 
-    start_time: std::time::Instant,
-    dashboard_slope: Vec<RGB<f64>>,
-    body_slope: Vec<RGB<f64>>,
+    start_time: Instant,
+    dashboard_slope: [RGB<f64>; 3],
+    body_slope: [RGB<f64>; 60],
     frames: u8,
 }
 
@@ -40,17 +57,17 @@ impl Fade {
         ending_dashboard: DashboardPattern,
         ending_lights: Pattern,
         frames: u8,
-        time: std::time::Instant,
+        time: Instant,
     ) -> Self {
-        let mut dashboard_slope = Vec::new();
-        let mut body_slope = Vec::new();
+        let mut dashboard_slope = [Default::default(); 3];
+        let mut body_slope = [Default::default(); 60];
         for i in 0..3 {
             let slope = RGB {
                 r: (ending_dashboard[i].r as f64 - dashboard[i].r as f64) / frames as f64,
                 g: (ending_dashboard[i].g as f64 - dashboard[i].g as f64) / frames as f64,
                 b: (ending_dashboard[i].b as f64 - dashboard[i].b as f64) / frames as f64,
             };
-            dashboard_slope.push(slope);
+            dashboard_slope[i] = slope;
         }
 
         for i in 0..60 {
@@ -59,11 +76,9 @@ impl Fade {
                 g: (ending_lights[i].g as f64 - lights[i].g as f64) / frames as f64,
                 b: (ending_lights[i].b as f64 - lights[i].b as f64) / frames as f64,
             };
-            body_slope.push(slope);
+            body_slope[i] = slope;
         }
 
-        println!("dashboard slope: {:?}", dashboard_slope);
-
         Self {
             starting_dashboard: dashboard,
             starting_lights: lights,
@@ -76,8 +91,8 @@ impl Fade {
 }
 
 impl Animation for Fade {
-    fn tick(&mut self, time: std::time::Instant) -> (DashboardPattern, Pattern) {
-        let mut frames: u8 = ((time - self.start_time).as_millis() as f64 / FPS as f64) as u8;
+    fn tick(&mut self, time: Instant) -> (DashboardPattern, Pattern) {
+        let mut frames: u8 = ((time - self.start_time).0 as f64 / FPS as f64) as u8;
         if frames > self.frames {
             frames = self.frames
         }
@@ -142,7 +157,7 @@ pub struct Blinker {
     fade_out: Fade,
     direction: FadeDirection,
 
-    start_time: std::time::Instant,
+    start_time: Instant,
     frames: u8,
 }
 
@@ -151,7 +166,7 @@ impl Blinker {
         starting_dashboard: DashboardPattern,
         starting_body: Pattern,
         direction: BlinkerDirection,
-        time: std::time::Instant,
+        time: Instant,
     ) -> Self {
         let mut ending_dashboard = starting_dashboard.clone();
 
@@ -211,8 +226,8 @@ impl Blinker {
 }
 
 impl Animation for Blinker {
-    fn tick(&mut self, time: std::time::Instant) -> (DashboardPattern, Pattern) {
-        let frames: u8 = ((time - self.start_time).as_millis() as f64 / FPS as f64) as u8;
+    fn tick(&mut self, time: Instant) -> (DashboardPattern, Pattern) {
+        let frames: u8 = ((time - self.start_time).0 as f64 / FPS as f64) as u8;
         if frames > self.frames {
             match self.direction {
                 FadeDirection::FadeIn => {
@@ -226,7 +241,6 @@ impl Animation for Blinker {
             }
             self.start_time = time;
         }
-        println!("anim: {:?} {}", self.direction, frames);
 
         match self.direction {
             FadeDirection::FadeIn => self.fade_in.tick(time),
@@ -276,7 +290,7 @@ impl App {
         }
     }
 
-    fn update_animation(&mut self, time: std::time::Instant) {
+    fn update_animation(&mut self, time: Instant) {
         match self.state {
             State::Pattern(0) => {
                 self.current_animation = Box::new(Fade::new(
@@ -374,7 +388,7 @@ impl App {
         }
     }
 
-    pub fn tick(&mut self, time: std::time::Instant) {
+    pub fn tick(&mut self, time: Instant) {
         match self.ui.check_event() {
             Some(event) => {
                 self.update_state(event);

bike-lights/core/src/types.rs

@@ -1,4 +1,6 @@
-#[derive(Clone, Default, Debug)]
+use core::default::Default;
+
+#[derive(Clone, Copy, Default, Debug)]
 pub struct RGB<T> {
     pub r: T,
     pub g: T,
@@ -6,4 +8,34 @@ pub struct RGB<T> {
 }
 
 pub type DashboardPattern = [RGB<u8>; 3];
+/*
+#[derive(Clone)]
+pub struct DashboardPattern(pub [RGB<u8>; 3]);
+*/
+
+/*
+impl Clone for DashboardPattern {
+    fn clone(&self) -> Self {
+        let mut v: [RGB<u8>; 3] = Default::default();
+        for i in 0..3 {
+            v[i] = self.0[i]
+        }
+        Self(v)
+    }
+}
+*/
+
 pub type Pattern = [RGB<u8>; 60];
+/*
+pub struct Pattern(pub [RGB<u8>; 60]);
+
+impl Pattern {
+    pub fn clone(&self) -> Self {
+        let mut v: [RGB<u8>; 60] = [Default::default(); 60];
+        for i in 0..60 {
+            v[i] = self.0[i]
+        }
+        Self(v)
+    }
+}
+*/

bike-lights/simulator/src/main.rs

@@ -1,7 +1,7 @@
 use adw::prelude::*;
 use glib::{Object, Sender};
 use gtk::subclass::prelude::*;
-use lights_core::{App, DashboardPattern, Event, Pattern, FPS, RGB, UI};
+use lights_core::{App, DashboardPattern, Event, Instant, Pattern, FPS, RGB, UI};
 use std::{
     cell::RefCell,
     env,
@@ -248,7 +248,12 @@ fn main() {
                 rx: event_rx,
             }));
             loop {
-                bike_app.tick(std::time::Instant::now());
+                bike_app.tick(Instant(
+                    (std::time::SystemTime::now()
+                        .duration_since(std::time::UNIX_EPOCH)
+                        .unwrap())
+                    .as_millis(),
+                ));
                 std::thread::sleep(std::time::Duration::from_millis(1000 / (FPS as u64)));
             }
         });