swaitsandClaude Opus 4.6
3102fc747a
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>
38 lines
679 B
Rust
38 lines
679 B
Rust
use crate::Hasher as _;
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const BASIS: u32 = 0x811c9dc5;
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const PRIME: u32 = 0x1000193;
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/// 32-bit Fowler-Noll-Vo hasher
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pub struct Hasher {
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state: u32,
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}
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impl Default for Hasher {
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fn default() -> Self {
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Hasher { state: BASIS }
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}
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}
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impl crate::Hasher for Hasher {
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#[inline]
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fn finish32(&self) -> u32 {
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self.state
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}
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}
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impl core::hash::Hasher for Hasher {
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#[inline]
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fn write(&mut self, bytes: &[u8]) {
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for byte in bytes {
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self.state ^= u32::from(*byte);
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self.state = self.state.wrapping_mul(PRIME);
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}
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}
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#[inline]
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fn finish(&self) -> u64 {
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self.finish32().into()
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}
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}
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