72 lines
3.2 KiB
C
72 lines
3.2 KiB
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// ==========================================
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// 1. Audio & DSP Parameters
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// ==========================================
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#define AUDIO_SAMPLE_RATE 16000 // 16kHz sample rate
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#define AUDIO_BITS_PER_SAMPLE 16 // 16-bit PCM
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#define AUDIO_CHANNELS 1 // Mono
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#define AUDIO_DEFAULT_FRAME_BYTES 120 // Default 120 bytes ADPCM per BLE frame
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#define AUDIO_DEFAULT_FRAME_SAMPS 240 // 120 * 2 = 240 PCM samples per frame
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#define AUDIO_RING_BUFFER_SIZE 8192 // Ring buffer capacity (in samples, ~512ms buffer)
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// AGC & Filter parameters
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#define AGC_TARGET_LEVEL 28000.0f
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#define AGC_DECAY_RATE 0.9997f
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#define AGC_MAX_GAIN 30.0f
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#define AGC_NOISE_FLOOR 200.0f
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#define AGC_INITIAL_PEAK 28000.0f // Soft-start: initial gain = 1.0x (0dB) to avoid 28x burst
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#define AUDIO_LEAD_MUTE_SAMPLES 2400 // 150ms silence zone (2400 samples @ 16kHz) to eliminate button click & pops
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#define AUDIO_FADE_IN_SAMPLES 160 // 10ms micro fade-in (160 samples @ 16kHz) - only for transient smoothing at boundary
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#define DECLIP_THRESHOLD 1000
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// ==========================================
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// 2. BLE Central & ATVV Parameters
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// ==========================================
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#define BLE_REMOTE_NAME_PREFIX "MI RC"
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#define BLE_REMOTE_MAC_PREFIX "c0:5d:39"
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#define BLE_SCAN_INTERVAL_MS 100
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#define BLE_SCAN_WINDOW_MS 80
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#define BLE_SILENCE_WATCHDOG_MS 450 // Voice key release watchdog timeout (ms)
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#define BLE_KEEP_ALIVE_INTERVAL 2000 // MIC_EXTEND interval during active voice (ms)
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// ATVV GATT UUIDs (128-bit)
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#define ATVV_SVC_UUID "ab5e0001-5a21-4f05-bc7d-af01f617b664"
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#define ATVV_CHAR_CMD_UUID "ab5e0002-5a21-4f05-bc7d-af01f617b664"
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#define ATVV_CHAR_AUD_UUID "ab5e0003-5a21-4f05-bc7d-af01f617b664"
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#define ATVV_CHAR_CTL_UUID "ab5e0004-5a21-4f05-bc7d-af01f617b664"
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// HOGP UUIDs (Standard Bluetooth SIG 16-bit)
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#define HOGP_SVC_UUID 0x1812
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#define HOGP_REPORT_CHAR_UUID 0x2A4D
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// ==========================================
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// 3. FreeRTOS Task & Multi-Core Pinning
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// ==========================================
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#define TASK_CORE_BLE 0 // Core 0: BLE & Audio decoding
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#define TASK_CORE_USB 1 // Core 1: TinyUSB & HID/Audio push
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#define PRIO_TASK_USB 6 // Real-time USB Isochronous & HID
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#define PRIO_TASK_AUDIO_DSP 5 // High-priority audio stream decoding
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#define PRIO_TASK_BLE 4 // NimBLE client processing
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#define PRIO_TASK_KEYMAP_CLI 3 // Key mapping state machine & CLI
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// ==========================================
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// 4. Default Keymap & Hotkey Codes
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// ==========================================
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// Default Voice Input Hotkey: Right Alt + Comma (WeChat Voice IME)
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// HID Keyboard Modifiers: 0x01=LCTRL, 0x02=LSHIFT, 0x04=LALT, 0x08=LGUI, 0x10=RCTRL, 0x20=RSHIFT, 0x40=RALT, 0x80=RGUI
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#define DEFAULT_VOICE_MODIFIER 0x40 // KEY_MOD_RALT
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#define DEFAULT_VOICE_KEY 0x36 // HID Usage for Comma ','
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#ifdef __cplusplus
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}
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#endif
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