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feat: add display UI with splash screen, dashboard, and RSSI sparkline

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Implement full SSD1306 OLED display support:
- Splash screen on boot (1.5s) with project name, version, board
- Dashboard showing radio state, config, counters, RSSI/SNR
- RSSI history sparkline (64-sample ring buffer, 2px-wide bars)
- DisplayOn/DisplayOff host commands routed via dedicated channel
- Pure render functions against generic DrawTarget (no hardware coupling)
- Display on/off control bypasses radio task entirely

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
swaitsandClaude Opus 4.6 committed 2026-03-29 20:42:54 -06:00
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vendor/gcd/.cargo-checksum.json
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vendor/gcd/.cargo_vcs_info.json
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{
"git": {
"sha1": "df6ba81825b2cb4f1e328f2283fb0fda8f8bda27"
},
"path_in_vcs": ""
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vendor/gcd/.github/workflows/rust.yml
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name: Rust
on:
push:
branches: [ master ]
pull_request:
branches: [ master ]
env:
CARGO_TERM_COLOR: always
jobs:
check:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Check
run: cargo check --verbose
test:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Run tests
run: cargo test --verbose
bench:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Run Benches
run: cargo bench
vendor/gcd/Cargo.toml
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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
edition = "2021"
name = "gcd"
version = "2.3.0"
authors = ["Corey Farwell <coreyf@rwell.org>"]
description = "Calculate the greatest common divisor"
documentation = "https://docs.rs/gcd/"
readme = "README.md"
categories = ["algorithms"]
license = "MIT/Apache-2.0"
repository = "https://github.com/frewsxcv/rust-gcd"
[[bench]]
name = "gcd_benchmark"
harness = false
[dependencies]
[dev-dependencies.criterion]
version = "0.3"
[dev-dependencies.rand]
version = "0.7"
[dev-dependencies.rand_chacha]
version = "0.2"
vendor/gcd/LICENSE-APACHE
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vendor/gcd/LICENSE-MIT
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Copyright (c) 2016 Corey Farwell
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vendor/gcd/README.md
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# rust-gcd
[Documentation](https://docs.rs/gcd/)
Small Rust library for calculating the greatest common divisor of two numbers
## License
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
vendor/gcd/benches/gcd_benchmark.rs
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extern crate criterion;
extern crate gcd;
extern crate rand;
extern crate rand_chacha;
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use gcd::Gcd;
use rand::{Rng, SeedableRng};
const SEED: u64 = 314;
fn criterion_benchmark(c: &mut Criterion) {
macro_rules! bench_function {
($name:expr, $type:ty, $func:ident) => {
c.bench_function($name, |b| {
let mut rng = rand_chacha::ChaCha8Rng::seed_from_u64(SEED);
let values: Vec<$type> = (0..1000).map(|_| rng.gen()).collect();
b.iter(|| {
for i in 0..values.len() - 1 {
let (a, b) = (values[i], values[i + 1]);
black_box(a.$func(b));
}
})
});
};
}
bench_function!("gcd euclid u8", u8, gcd_euclid);
bench_function!("gcd euclid u16", u16, gcd_euclid);
bench_function!("gcd euclid u32", u32, gcd_euclid);
bench_function!("gcd euclid u64", u64, gcd_euclid);
bench_function!("gcd euclid u128", u128, gcd_euclid);
bench_function!("gcd binary u8", u8, gcd_binary);
bench_function!("gcd binary u16", u16, gcd_binary);
bench_function!("gcd binary u32", u32, gcd_binary);
bench_function!("gcd binary u64", u64, gcd_binary);
bench_function!("gcd binary u128", u128, gcd_binary);
}
criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);
vendor/gcd/src/lib.rs
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#![no_std]
use core::num::{NonZeroU128, NonZeroU16, NonZeroU32, NonZeroU64, NonZeroU8, NonZeroUsize};
pub trait Gcd {
/// Determine [greatest common divisor](https://en.wikipedia.org/wiki/Greatest_common_divisor)
/// using [`gcd_binary`].
///
/// [`gcd_binary`]: #method.gcd_binary
///
/// # Examples
///
/// ```
/// use gcd::Gcd;
///
/// assert_eq!(0, 0u8.gcd(0));
/// assert_eq!(10, 10u8.gcd(0));
/// assert_eq!(10, 0u8.gcd(10));
/// assert_eq!(10, 10u8.gcd(20));
/// assert_eq!(44, 2024u32.gcd(748));
/// ```
fn gcd(self, other: Self) -> Self;
/// Determine [greatest common divisor](https://en.wikipedia.org/wiki/Greatest_common_divisor)
/// using the [Binary GCD algorithm](https://en.wikipedia.org/wiki/Binary_GCD_algorithm).
fn gcd_binary(self, other: Self) -> Self;
/// Determine [greatest common divisor](https://en.wikipedia.org/wiki/Greatest_common_divisor)
/// using the [Euclidean algorithm](https://en.wikipedia.org/wiki/Euclidean_algorithm).
fn gcd_euclid(self, other: Self) -> Self;
}
macro_rules! gcd_impl {
($(($T:ty) $binary:ident $euclid:ident),*) => {$(
#[doc = concat!("Const binary GCD implementation for `", stringify!($T), "`.")]
pub const fn $binary(mut u: $T, mut v: $T) -> $T
{
if u == 0 { return v; }
if v == 0 { return u; }
let shift = (u | v).trailing_zeros();
u >>= shift;
v >>= shift;
u >>= u.trailing_zeros();
loop {
v >>= v.trailing_zeros();
#[allow(clippy::manual_swap)]
if u > v {
// mem::swap(&mut u, &mut v);
let temp = u;
u = v;
v = temp;
}
v -= u; // here v >= u
if v == 0 { break; }
}
u << shift
}
#[doc = concat!("Const euclid GCD implementation for `", stringify!($T), "`.")]
pub const fn $euclid(a: $T, b: $T) -> $T
{
// variable names based off euclidean division equation: a = b · q + r
let (mut a, mut b) = if a > b {
(a, b)
} else {
(b, a)
};
#[allow(clippy::manual_swap)]
while b != 0 {
// mem::swap(&mut a, &mut b);
let temp = a;
a = b;
b = temp;
b %= a;
}
a
}
impl Gcd for $T {
#[inline]
fn gcd(self, other: $T) -> $T {
self.gcd_binary(other)
}
#[inline]
fn gcd_binary(self, v: $T) -> $T {
$binary(self, v)
}
#[inline]
fn gcd_euclid(self, other: $T) -> $T {
$euclid(self, other)
}
}
)*};
}
gcd_impl! {
(u8) binary_u8 euclid_u8,
(u16) binary_u16 euclid_u16,
(u32) binary_u32 euclid_u32,
(u64) binary_u64 euclid_u64,
(u128) binary_u128 euclid_u128,
(usize) binary_usize euclid_usize
}
macro_rules! gcd_impl_nonzero {
($(($T:ty) $binary_nonzero:ident/$binary:ident $euclid_nonzero:ident/$euclid:ident),*) => {$(
#[doc = concat!("Const binary GCD implementation for `", stringify!($T), "`.")]
pub const fn $binary_nonzero(u: $T, v: $T) -> $T
{
match <$T>::new($binary(u.get(), v.get())) {
Some(x) => x,
None => unreachable!(),
}
}
#[doc = concat!("Const euclid GCD implementation for `", stringify!($T), "`.")]
pub const fn $euclid_nonzero(a: $T, b: $T) -> $T
{
match <$T>::new($euclid(a.get(), b.get())) {
Some(x) => x,
None => unreachable!(),
}
}
impl Gcd for $T {
#[inline]
fn gcd(self, other: $T) -> $T {
self.gcd_binary(other)
}
#[inline]
fn gcd_binary(self, v: $T) -> $T {
$binary_nonzero(self, v)
}
#[inline]
fn gcd_euclid(self, other: $T) -> $T {
$euclid_nonzero(self, other)
}
}
)*}
}
gcd_impl_nonzero! {
(NonZeroU8) binary_nonzero_u8/binary_u8 euclid_nonzero_u8/euclid_u8,
(NonZeroU16) binary_nonzero_u16/binary_u16 euclid_nonzero_u16/euclid_u16,
(NonZeroU32) binary_nonzero_u32/binary_u32 euclid_nonzero_u32/euclid_u32,
(NonZeroU64) binary_nonzero_u64/binary_u64 euclid_nonzero_u64/euclid_u64,
(NonZeroU128) binary_nonzero_u128/binary_u128 euclid_nonzero_u128/euclid_u128,
(NonZeroUsize) binary_nonzero_usize/binary_usize euclid_nonzero_usize/euclid_usize
}
#[cfg(test)]
mod test {
use super::*;
use core::fmt::Debug;
const U8_GCD_A: [u8; 5] = [140, 1, 140, 33, 225];
const U8_GCD_B: [u8; 5] = [136, 123, 203, 252, 153];
const U8_GCD_R: [u8; 5] = [4, 1, 7, 3, 9];
const U16_GCD_A: [u16; 5] = [53144, 44062, 65054, 60568, 11932];
const U16_GCD_B: [u16; 5] = [41105, 5088, 35332, 19184, 54004];
const U16_GCD_R: [u16; 5] = [1, 2, 22, 8, 4];
const U32_GCD_A: [u32; 5] = [3392079986, 273672341, 1353048788, 1491301950, 3569727686];
const U32_GCD_B: [u32; 5] = [2080089626, 3912533700, 1969135932, 1356732645, 58056677];
const U32_GCD_R: [u32; 5] = [2, 1, 4, 15, 7];
const U64_GCD_A: [u64; 5] = [
190266297176832000,
2040134905096275968,
16611311494648745984,
14863931409971066880,
11777713923171739648,
];
const U64_GCD_B: [u64; 5] = [
10430732356495263744,
5701159354248194048,
7514969329383038976,
7911906750992527360,
1994469765110767616,
];
const U64_GCD_R: [u64; 5] = [6144, 2048, 4096, 10240, 14336];
const U128_GCD_A: [u128; 5] = [
183222947567111613556380400704880115712,
115621006611964852903362423926779019264,
50724538437787115589243518273596686336,
18298803717624646317403958239767298048,
196929845599653749349770751890136498176,
];
const U128_GCD_B: [u128; 5] = [
283620717889381409474181015983148236800,
152390035351551984363917166384150216704,
74996138554240857099554660445327458304,
245604784002268488089190010796573196288,
194671916188106984823441978656659865600,
];
const U128_GCD_R: [u128; 5] = [
37778931862957161709568,
75557863725914323419136,
113336795588871485128704,
151115727451828646838272,
302231454903657293676544,
];
const USIZE_GCD_A: [usize; 5] = [335286345, 3125888386, 3550412466, 924335944, 2870209473];
const USIZE_GCD_B: [usize; 5] = [1843742025, 2080426243, 16052620, 1587387560, 24708111];
const USIZE_GCD_R: [usize; 5] = [15, 1, 2, 8, 3];
#[test]
fn test_gcd_basic() {
// some base cases
assert_eq!(0, 0u8.gcd(0));
assert_eq!(10, 10u8.gcd(0));
assert_eq!(10, 0u8.gcd(10));
}
fn verify_gcd<T>(a: T, b: T, r: T)
where
T: Gcd + Copy + PartialEq + Debug,
{
let gcd = a.gcd(b);
let egcd = a.gcd_euclid(b);
let bgcd = a.gcd_binary(b);
assert_eq!(r, gcd, "{:?}.gcd({:?})", a, b);
assert_eq!(r, egcd, "{:?}.gcd_euclid({:?})", a, b);
assert_eq!(r, bgcd, "{:?}.gcd_binary({:?})", a, b);
}
fn test_gcd_ty<T, NZ, const N: usize>(
new: impl Fn(T) -> Option<NZ>,
zero: T,
a: &[T; N],
b: &[T; N],
r: &[T; N],
) where
T: Gcd + Copy + PartialEq + Debug,
NZ: Gcd + Copy + PartialEq + Debug,
{
for ind in 0..N {
let a = new(a[ind]).unwrap();
let b = new(b[ind]).unwrap();
let r = new(r[ind]).unwrap();
verify_gcd(a, b, r);
}
let a = a[0];
verify_gcd(zero, a, a);
verify_gcd(a, zero, a);
}
#[test]
fn test_gcd() {
test_gcd_ty(NonZeroU8::new, 0, &U8_GCD_A, &U8_GCD_B, &U8_GCD_R);
test_gcd_ty(NonZeroU16::new, 0, &U16_GCD_A, &U16_GCD_B, &U16_GCD_R);
test_gcd_ty(NonZeroU32::new, 0, &U32_GCD_A, &U32_GCD_B, &U32_GCD_R);
test_gcd_ty(NonZeroU64::new, 0, &U64_GCD_A, &U64_GCD_B, &U64_GCD_R);
test_gcd_ty(NonZeroU128::new, 0, &U128_GCD_A, &U128_GCD_B, &U128_GCD_R);
test_gcd_ty(
NonZeroUsize::new,
0,
&USIZE_GCD_A,
&USIZE_GCD_B,
&USIZE_GCD_R,
);
}
const U32_GCD_R_0: u32 = binary_u32(U32_GCD_A[0], U32_GCD_B[0]);
const U32_GCD_R_1: u32 = euclid_u32(U32_GCD_A[1], U32_GCD_B[1]);
const U32_GCD_R_2: u32 = binary_u32(U32_GCD_A[2], U32_GCD_B[2]);
const U32_GCD_R_3: u32 = euclid_u32(U32_GCD_A[3], U32_GCD_B[3]);
const U32_GCD_R_4: u32 = binary_u32(U32_GCD_A[4], U32_GCD_B[4]);
#[test]
fn test_const_gcd() {
assert_eq!(U32_GCD_R[0], U32_GCD_R_0);
assert_eq!(U32_GCD_R[1], U32_GCD_R_1);
assert_eq!(U32_GCD_R[2], U32_GCD_R_2);
assert_eq!(U32_GCD_R[3], U32_GCD_R_3);
assert_eq!(U32_GCD_R[4], U32_GCD_R_4);
}
}