forked from M-Labs/thermostat
82 lines
2.7 KiB
Rust
82 lines
2.7 KiB
Rust
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use serde::Serialize;
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use crate::{
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pins::HWRevPins,
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command_handler::JsonBuffer,
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};
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#[derive(Serialize, Copy, Clone)]
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pub struct HWRev {
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pub major: u8,
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pub minor: u8,
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}
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#[derive(Serialize, Clone)]
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pub struct HWSettings {
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pub fan_k_a: f32,
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pub fan_k_b: f32,
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pub fan_k_c: f32,
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pub min_fan_pwm: f32,
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pub max_fan_pwm: f32,
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pub fan_pwm_freq_hz: u32,
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pub fan_available: bool,
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pub fan_pwm_recommended: bool,
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}
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#[derive(Serialize, Clone)]
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struct HWSummary<'a> {
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rev: &'a HWRev,
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settings: &'a HWSettings,
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}
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impl HWRev {
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pub fn detect_hw_rev(hwrev_pins: &HWRevPins) -> Self {
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let (h0, h1, h2, h3) = (hwrev_pins.hwrev0.is_high(), hwrev_pins.hwrev1.is_high(),
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hwrev_pins.hwrev2.is_high(), hwrev_pins.hwrev3.is_high());
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match (h0, h1, h2, h3) {
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(true, true, true, false) => HWRev { major: 1, minor: 0 },
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(true, false, false, false) => HWRev { major: 2, minor: 0 },
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(false, true, false, false) => HWRev { major: 2, minor: 2 },
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(_, _, _, _) => HWRev { major: 0, minor: 0 }
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}
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}
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pub fn settings(&self) -> HWSettings {
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match (self.major, self.minor) {
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(2, 2) => HWSettings {
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fan_k_a: 1.0,
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fan_k_b: 0.0,
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fan_k_c: 0.0,
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// below this value motor's autostart feature may fail,
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// according to internal experiments
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min_fan_pwm: 0.04,
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max_fan_pwm: 1.0,
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// According to `SUNON DC Brushless Fan & Blower(255-E)` catalogue p.36-37
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// model MF35101V1-1000U-G99 doesn't have a PWM wire, but we'll follow their others models'
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// recommended frequency, as it is said by the Thermostat's schematics that we can
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// use PWM, but not stated at which frequency
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fan_pwm_freq_hz: 25_000,
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fan_available: true,
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// see https://github.com/sinara-hw/Thermostat/issues/115 and
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// https://git.m-labs.hk/M-Labs/thermostat/issues/69#issuecomment-6464 for explanation
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fan_pwm_recommended: false,
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},
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(_, _) => HWSettings {
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fan_k_a: 0.0,
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fan_k_b: 0.0,
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fan_k_c: 0.0,
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min_fan_pwm: 0.0,
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max_fan_pwm: 0.0,
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fan_pwm_freq_hz: 0,
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fan_available: false,
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fan_pwm_recommended: false,
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}
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}
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}
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pub fn summary(&self) -> Result<JsonBuffer, serde_json_core::ser::Error> {
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let settings = self.settings();
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let summary = HWSummary { rev: self, settings: &settings };
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serde_json_core::to_vec(&summary)
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}
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}
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