/*
 Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
 Copyright (c) 2016 Sandeep Mistry All right reserved.
 Copyright (c) 2018, Adafruit Industries (adafruit.com)

 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.
 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 See the GNU Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef _VARIANT_HELTEC_MESH_NODE_T1_
#define _VARIANT_HELTEC_MESH_NODE_T1_
/** Master clock frequency */
#define VARIANT_MCK (64000000ul)

#define USE_LFXO // Board uses 32khz crystal for LF

/*----------------------------------------------------------------------------
 *        Headers
 *----------------------------------------------------------------------------*/

#include "WVariant.h"

#ifdef __cplusplus
extern "C" {
#endif // __cplusplus

#define ST7735_CS (0 + 12)
#define ST7735_RS (0 + 22) // DC
#define ST7735_SDA (0 + 24)
#define ST7735_SCK (32 + 0)
#define ST7735_RESET (0 + 20)
#define ST7735_MISO -1
#define ST7735_BUSY -1
#define ST7735_BL (0 + 15)
#define VTFT_CTRL (0 + 13) // Active HIGH, powers the ST7735 display
#define SPI_FREQUENCY 80000000
#define SPI_READ_FREQUENCY 16000000
#define SCREEN_ROTATE
#define TFT_HEIGHT 160
#define TFT_WIDTH 80
#define TFT_OFFSET_X 24
#define TFT_OFFSET_Y 0
#define TFT_INVERT false
#define SCREEN_TRANSITION_FRAMERATE 3 // fps
#define DISPLAY_FORCE_SMALL_FONTS

// Number of pins defined in PinDescription array
#define PINS_COUNT (48)
#define NUM_DIGITAL_PINS (48)
#define NUM_ANALOG_INPUTS (1)
#define NUM_ANALOG_OUTPUTS (0)

// LEDs
#define PIN_LED1 (0 + 16)
#define LED_BLUE PIN_LED1 // fake for bluefruit library
#define LED_GREEN PIN_LED1
#define LED_STATE_ON 0 // State when LED is lit

/*
 * Buttons
 */
#define PIN_BUTTON1 (32 + 10)
#define PIN_BUTTON2 (0 + 14)

/*
No longer populated on PCB
*/
#define PIN_SERIAL2_RX (-1)
#define PIN_SERIAL2_TX (-1)

/*
 * I2C
 */

#define WIRE_INTERFACES_COUNT 1

// I2C bus 1
#define PIN_WIRE_SDA (32 + 3)
#define PIN_WIRE_SCL (0 + 10)

#define PIN_SENSOR_EN (32 + 6)   // Power control pin for sensors
#define PIN_SENSOR_EN_ACTIVE LOW // Power control active state
// #define ICM_42607P_INT_PIN (32 + 1)  // ICM42607P INT1, Arduino pin 33 / nRF P1.01
// #define ICM_42607P_INT2_PIN (32 + 7) // ICM42607P INT2, Arduino pin 39 / nRF P1.07

/*
 * Lora radio
 */

#define USE_SX1262
#define SX126X_CS (32 + 11) // FIXME - we really should define LORA_CS instead
#define LORA_CS SX126X_CS
#define SX126X_DIO1 (0 + 31)
#define SX126X_BUSY (0 + 29)
#define SX126X_RESET (0 + 2)
#define SX126X_DIO2_AS_RF_SWITCH
#define SX126X_DIO3_TCXO_VOLTAGE 1.8

/*
 * SPI Interfaces
 */
#define SPI_INTERFACES_COUNT 2

// For LORA, spi 0
#define PIN_SPI_MISO (0 + 3)
#define PIN_SPI_MOSI (32 + 14)
#define PIN_SPI_SCK (32 + 13)

#define PIN_SPI1_MISO ST7735_MISO
#define PIN_SPI1_MOSI ST7735_SDA
#define PIN_SPI1_SCK ST7735_SCK

/*
 * GPS pins
 */
#define GPS_UC6580
#define GPS_BAUDRATE 115200
#define PIN_GPS_RESET (0 + 26)
#define GPS_RESET_MODE LOW
#define PIN_GPS_EN (0 + 4)
#define GPS_EN_ACTIVE LOW
#define PERIPHERAL_WARMUP_MS 1000 // Make sure I2C QuickLink has stable power before continuing
#define PIN_GPS_PPS (32 + 9)      // Pulse per second input from the GPS
#define GPS_TX_PIN (0 + 7)
#define GPS_RX_PIN (0 + 8)

#define GPS_THREAD_INTERVAL 50

#define PIN_SERIAL1_RX GPS_RX_PIN
#define PIN_SERIAL1_TX GPS_TX_PIN

#define PIN_BUZZER (0 + 9)
#define PIN_BUZZER_VOLTAGE_MULTIPLIER_1 (32 + 2)
#define PIN_BUZZER_VOLTAGE_MULTIPLIER_2 (32 + 5)

#define ADC_CTRL 11
#define ADC_CTRL_ENABLED HIGH
#define BATTERY_PIN 5
#define ADC_RESOLUTION 14

#define BATTERY_SENSE_RESOLUTION_BITS 12
#define BATTERY_SENSE_RESOLUTION 4096.0
#undef AREF_VOLTAGE
#define AREF_VOLTAGE 3.0
#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
#define ADC_MULTIPLIER (4.916F)

// nrf52840 AIN3 = Pin 5
// commented out due to power leakage of 2.9mA in shutdown state see reported issue #8801
#define BATTERY_LPCOMP_INPUT NRF_LPCOMP_INPUT_3

// We have AIN3 with a VBAT divider so AIN3 = VBAT * (100/490)
// We have the device going deep sleep under 3.1V, which is AIN3 = 0.63V
// So we can wake up when VBAT>=VDD is restored to 3.3V, where AIN3 = 0.67V
// Ratio 0.67/3.3 = 0.20, so we can pick a bit higher, 2/8 VDD, which means
// VBAT=4.04V
#define BATTERY_LPCOMP_THRESHOLD NRF_LPCOMP_REF_SUPPLY_2_8

#define HAS_RTC 0
#ifdef __cplusplus
}
#endif

/*----------------------------------------------------------------------------
 *        Arduino objects - C++ only
 *----------------------------------------------------------------------------*/

#endif
