/*
 * @file config.h
 * @brief System configuration and constants
 *
 * Created: 21.09.2025
 * Author: ThePetrovich
 *
 * Copyright YKSA - Sakha Aerospace Systems, LLC.
 * See the LICENSE file for details.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#ifndef CONFIG_H
#define CONFIG_H

// Firmware version
#define FIRMWARE_VERSION_MAJOR 2
#define FIRMWARE_VERSION_MINOR 03

// Serial communication
#define SERIAL_BAUD_RATE 38400
#define SERIAL_BUFFER_CLEAR()                                                                                          \
	do {                                                                                                           \
		while (Serial.available()) {                                                                           \
			Serial.read();                                                                                 \
		}                                                                                                      \
	} while (0)
#define SERIAL_SEND_OK()                                                                                               \
	do {                                                                                                           \
		Serial.print("ok\n");                                                                                  \
		Serial.flush();                                                                                        \
		SERIAL_BUFFER_CLEAR();                                                                                 \
	} while (0)

// Timing constants
#define STATUS_LED_BLINK_PERIOD 500U
#define MAIN_LOOP_DELAY 10
#define CPM_UPDATE_PERIOD 10000U

// ADC and detector settings
#define ADC_OVERSAMPLING_BITS 2	   // 16x oversampling -> 2 extra bits
#define ADC_CHANNEL_16_MASK 0x7FFU // 11-bit channel mask
#define ADC_CHANNEL_32_MASK 0x3FFU // 10-bit channel mask
#define DETECTOR_CHANNEL_COUNT 2048
#define DETECTOR_CHANNEL_32_COUNT 1024

// Temperature sensor constants (MCP9700)
#define TEMP_SENSOR_OFFSET_MV 500L // 500 mV at 0°C
#define TEMP_SENSOR_SCALE_MV 10L   // 10 mV per degree
#define ADC_VREF_MV 3000L	   // 3.0V reference
#define ADC_RESOLUTION 4096L	   // 12-bit effective resolution

// Voltage divider constants
#define VOLTAGE_DIVIDER_RATIO 20.0f	// 200k and 10k resistors
#define VOLTAGE_MV_PER_STEP 14.6484375f // (3.0 * 20) / 4096

// EEPROM addresses for potentiometer settings
#define EEPROM_POT_HV_ADDR 0
#define EEPROM_POT_AMP_ADDR 1
#define EEPROM_POT_DET_ADDR 2
#define EEPROM_MAGIC_ADDR 3
#define EEPROM_MAGIC_VALUE 0xA5 // Magic value to check if EEPROM is initialized

// Default potentiometer values
#define DEFAULT_POT_VALUE 127

// Light sensor constants
#define LSENSE_I2C_BASE_ADDR 0x38
#define LSENSE_EXPECTED_ID 0xE0
#define LSENSE_DATA_SIZE 12

#endif // CONFIG_H