203 lines
8.2 KiB
C
203 lines
8.2 KiB
C
#pragma once
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#include <Arduino.h>
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// ─── Feature Flags ────────────────────────────────────────────────────────────
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#define FEATURE_CONFIG_SERVICE
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#define FEATURE_TELEMETRY
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#define FEATURE_IMU_STREAM
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#define FEATURE_TAP_DETECTION
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#define FEATURE_TEMP_COMPENSATION
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#define FEATURE_AUTO_RECAL
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#define FEATURE_BATTERY_MONITOR
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#define FEATURE_BOOT_LOOP_DETECT
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// ─── Debug ────────────────────────────────────────────────────────────────────
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// #define DEBUG
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// ─── ATT table size ───────────────────────────────────────────────────────────
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#define _ATT_BASE 900
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#ifdef FEATURE_CONFIG_SERVICE
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#define _ATT_CFG 80
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#else
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#define _ATT_CFG 0
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#endif
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#ifdef FEATURE_TELEMETRY
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#define _ATT_TELEM 40
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#else
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#define _ATT_TELEM 0
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#endif
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#ifdef FEATURE_IMU_STREAM
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#define _ATT_STREAM 30
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#else
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#define _ATT_STREAM 0
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#endif
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#define ATT_TABLE_SIZE_CALC (_ATT_BASE + _ATT_CFG + _ATT_TELEM + _ATT_STREAM)
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#define ATT_TABLE_SIZE (ATT_TABLE_SIZE_CALC < 1536 ? 1536 : ATT_TABLE_SIZE_CALC)
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// ─── IMU register addresses ───────────────────────────────────────────────────
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#define REG_CTRL1_XL 0x10
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#define REG_TAP_CFG 0x58
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#define REG_TAP_THS_6D 0x59
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#define REG_INT_DUR2 0x5A
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#define REG_WAKE_UP_THS 0x5B
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#define REG_MD1_CFG 0x5E
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#define REG_TAP_SRC 0x1C
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#define REG_OUT_TEMP_L 0x20
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#define REG_OUT_TEMP_H 0x21
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// ─── Pins ─────────────────────────────────────────────────────────────────────
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#define PIN_VBAT_ENABLE (14)
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#define PIN_VBAT_READ (32)
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#define PIN_CHG (23)
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#define PIN_HICHG (22)
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// ─── Persistence ──────────────────────────────────────────────────────────────
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#define CONFIG_FILENAME "/imu_mouse_cfg.bin"
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#define CONFIG_MAGIC 0xDEAD1239UL
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// ─── Enums ────────────────────────────────────────────────────────────────────
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enum CurveType : uint8_t { CURVE_LINEAR=0, CURVE_SQUARE=1, CURVE_SQRT=2 };
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enum ChargeMode : uint8_t { CHARGE_OFF=0, CHARGE_SLOW=1, CHARGE_FAST=2 };
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enum ChargeStatus: uint8_t { CHGSTAT_DISCHARGING=0, CHGSTAT_CHARGING=1, CHGSTAT_FULL=2 };
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// ─── Tap action types ─────────────────────────────────────────────────────────
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// TAP_ACTION_KEY: fires a raw HID keycode (tapKey) with optional modifier (tapMod).
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// Modifier byte: bit0=Ctrl, bit1=Shift, bit2=Alt, bit3=GUI (same as HID modifier byte).
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enum TapAction : uint8_t {
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TAP_ACTION_LEFT = 0,
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TAP_ACTION_RIGHT = 1,
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TAP_ACTION_MIDDLE = 2,
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TAP_ACTION_KEY = 3,
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};
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// ─── Config (stored in flash) ─────────────────────────────────────────────────
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struct Config {
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uint32_t magic;
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float sensitivity;
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float deadZone;
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float accelStrength;
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CurveType curve;
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uint8_t axisFlip;
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ChargeMode chargeMode;
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uint8_t tapThreshold; // 1–31 → REG_TAP_THS_6D bits[4:0]; 1 LSB = 62.5 mg at ±2g
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TapAction tapAction; // what a double-tap does
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uint8_t tapKey; // HID keycode (used when tapAction == TAP_ACTION_KEY)
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uint8_t tapMod; // HID modifier byte (used when tapAction == TAP_ACTION_KEY)
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};
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extern Config cfg;
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extern const Config CFG_DEFAULTS;
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// ─── ConfigBlob (over BLE, 20 bytes) ─────────────────────────────────────────
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struct __attribute__((packed)) ConfigBlob {
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float sensitivity; // [0]
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float deadZone; // [4]
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float accelStrength; // [8]
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uint8_t curve; // [12]
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uint8_t axisFlip; // [13]
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uint8_t chargeMode; // [14]
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uint8_t tapThreshold; // [15] 1–31
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uint8_t tapAction; // [16] TapAction enum
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uint8_t tapKey; // [17] HID keycode
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uint8_t tapMod; // [18] HID modifier
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uint8_t _pad; // [19]
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};
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static_assert(sizeof(ConfigBlob) == 20, "ConfigBlob must be 20 bytes");
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// ─── TelemetryPacket (24 bytes) ───────────────────────────────────────────────
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#ifdef FEATURE_TELEMETRY
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struct __attribute__((packed)) TelemetryPacket {
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uint32_t uptimeSeconds; // [0]
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uint32_t leftClicks; // [4]
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uint32_t rightClicks; // [8]
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float tempCelsius; // [12]
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float biasRmsRadS; // [16]
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uint16_t recalCount; // [20]
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uint8_t chargeStatus; // [22]
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uint8_t _pad; // [23]
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};
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static_assert(sizeof(TelemetryPacket) == 24, "TelemetryPacket must be 24 bytes");
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extern TelemetryPacket telem;
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#endif
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// ─── ImuPacket (14 bytes) ─────────────────────────────────────────────────────
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#ifdef FEATURE_IMU_STREAM
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struct __attribute__((packed)) ImuPacket {
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int16_t gyroY_mDPS; // [0]
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int16_t gyroZ_mDPS; // [2]
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int16_t accelX_mg; // [4]
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int16_t accelY_mg; // [6]
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int16_t accelZ_mg; // [8]
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int8_t moveX; // [10]
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int8_t moveY; // [11]
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uint8_t flags; // [12] bit0=idle bit1=singleTap bit2=doubleTap
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uint8_t _pad; // [13]
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};
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static_assert(sizeof(ImuPacket) == 14, "ImuPacket must be 14 bytes");
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#endif
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// ─── Tuning constants ─────────────────────────────────────────────────────────
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extern const float ALPHA;
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extern const int LOOP_RATE_MS;
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extern const int BIAS_SAMPLES;
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extern const int IDLE_FRAMES;
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extern const unsigned long BATT_REPORT_MS;
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extern const unsigned long TELEMETRY_MS;
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extern const unsigned long HEARTBEAT_MS;
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extern const int HEARTBEAT_DUR;
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extern const unsigned long BOOT_SAFE_MS;
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#ifdef FEATURE_IMU_STREAM
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extern const unsigned long IMU_STREAM_RATE_MS;
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#endif
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extern const float BATT_FULL;
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extern const float BATT_EMPTY;
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extern const float BATT_CRITICAL;
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#ifdef FEATURE_TAP_DETECTION
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extern const unsigned long CLICK_HOLD_MS;
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#endif
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#ifdef FEATURE_TEMP_COMPENSATION
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extern const float TEMP_COMP_COEFF_DPS_C;
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#endif
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#ifdef FEATURE_AUTO_RECAL
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extern const unsigned long AUTO_RECAL_MS;
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#endif
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// ─── Global state ─────────────────────────────────────────────────────────────
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extern float angleX, angleY;
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extern float accumX, accumY;
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extern float biasGX, biasGY, biasGZ;
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extern float calTempC;
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extern float cachedTempC;
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#ifdef FEATURE_TAP_DETECTION
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extern bool clickButtonDown;
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extern uint8_t clickButton;
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extern unsigned long clickDownMs;
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extern uint32_t statLeftClicks;
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extern uint32_t statRightClicks;
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#endif
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#ifdef FEATURE_IMU_STREAM
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extern bool imuStreamEnabled;
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#endif
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extern bool pendingCal;
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extern bool pendingReset;
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extern ChargeStatus lastChargeStatus;
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extern int idleFrames;
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extern unsigned long idleStartMs;
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extern unsigned long lastTime;
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extern unsigned long lastBattTime;
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extern unsigned long lastHeartbeat;
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extern unsigned long lastTelemetry;
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extern unsigned long bootStartMs;
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#ifdef FEATURE_IMU_STREAM
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extern unsigned long lastImuStream;
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#endif
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#ifdef FEATURE_TELEMETRY
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extern uint16_t statRecalCount;
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extern float statBiasRms;
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#endif
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extern bool safeMode;
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extern bool bootCountCleared;
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