// Copyright (C)2026, Philip Munts dba Munts Technologies.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the following disclaimer.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
// Default I2C bus pins

#ifndef _MUNTSTECH_I2C_H_
#define _MUNTSTECH_I2C_H_

#include <Wire.h>

#if !defined(I2C_SCL_PIN) || !defined(I2C_SDA_PIN)

/*****************************************************************************/

// RP2040/RP2350 Boards, using the Arduino-Pico core package

#ifdef ARDUINO_ARCH_RP2040
#ifdef ARDUINO_CYTRON_MAKER_NANO_RP2040
#ifdef I2C_MAKER0
// I2C bus on GP0  and GP1  (Maker Port aka QWIIC socket 0)
#define I2C_SDA_PIN 0
#define I2C_SCL_PIN 1
#elifdef I2C_MAKER1
// I2C bus on GP26 and GP27 (Maker Port aka QWIIC socket 1)
#define I2C_SDA_PIN 26
#define I2C_SCL_PIN 27
#define Wire Wire1
#else
// I2C bus on GP12 and GP13 (Arduino Nano D18 and D19)
#define I2C_SDA_PIN 12
#define I2C_SCL_PIN 13
#endif
#elifdef ARDUINO_PIMORONI_TINY2350
// I2C bus on GP12 and GP13 (QWIIC socket)
#define I2C_SDA_PIN 12
#define I2C_SCL_PIN 13
#elifdef ARDUINO_SPARKFUN_PROMICRO_RP2040
// I2C bus on GPIO16 and GPIO17 (QWIIC socket)
#define I2C_SDA_PIN 16
#define I2C_SCL_PIN 17
#elifdef ARDUINO_SPARKFUN_PROMICRO_RP2350
// I2C bus on GPIO16 and GPIO17 (QWIIC socket)
#define I2C_SDA_PIN 16
#define I2C_SCL_PIN 17
#else
// All other RP2040/RP2350 boards: Same as Raspberry Pi Pico default,
// I2C bus on D4 and D5
#define I2C_SDA_PIN 4
#define I2C_SCL_PIN 5
#endif
#endif

/*****************************************************************************/

// STM32 Nucleo-32 boards, using the STM32duino core package

#ifdef ARDUINO_NUCLEO_32
// I2C bus on Arduino Nano A4 and A5, *IF* solder bridges SB16 and SB18
// are installed (default).
#define I2C_SDA_PIN PIN_WIRE_SDA
#define i2C_SCL_PIN PIN_WIRE_SCL
#endif

/*****************************************************************************/

// STM32 Nucleo-64 boards, using the STM32duino core package

#ifdef ARDUINO_NUCLEO_64
// I2C bus on Arduino Uno D18 and D19 *AND* A4 and A5 *IF* solder bridges
// SB46 and SB52 are installed (not default).
#define I2C_SDA_PIN PIN_WIRE_SDA
#define i2C_SCL_PIN PIN_WIRE_SCL
#endif

/*****************************************************************************/

#endif
#endif