/*
 * Copyright (C)  2016 Inria
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */

/**
 * @ingroup     boards_common_arduino_zero
 * @{
 *
 * @file
 * @brief       Mapping from MCU pins to Arduino pins
 *
 * You can use the defines in this file for simplified interaction with the
 * Arduino specific pin numbers.
 *
 * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
 */

#ifndef ARDUINO_IOMAP_H
#define ARDUINO_IOMAP_H

#include "periph/adc.h"
#include "periph/gpio.h"
#include "periph/i2c.h"
#include "periph/pwm.h"
#include "periph/spi.h"
#include "periph/uart.h"

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @name    Arduino's UART devices
 * @{
 */
#define ARDUINO_UART_D0D1       UART_DEV(1)
/** @} */

/**
 * @name    Arduino's SPI buses
 * @{
 */
/**
 * @brief   SPI_DEV(0) is connected to the ISP header
 */
#define ARDUINO_SPI_ISP         SPI_DEV(0)
/** @} */

/**
 * @name    Arduino's I2C buses
 * @{
 */
/**
 * @brief   The first I2C bus is next to the AREF pin
 */
#define ARDUINO_I2C_UNO         I2C_DEV(0)
/** @} */

/**
 * @name    Mapping of MCU pins to Arduino pins
 * @{
 */
#define ARDUINO_PIN_0           GPIO_PIN(PA, 11)
#define ARDUINO_PIN_1           GPIO_PIN(PA, 10)
#define ARDUINO_PIN_2           GPIO_PIN(PA, 14)
#define ARDUINO_PIN_3           GPIO_PIN(PA, 9)
#define ARDUINO_PIN_4           GPIO_PIN(PA, 8)
#define ARDUINO_PIN_5           GPIO_PIN(PA, 15)
#define ARDUINO_PIN_6           GPIO_PIN(PA, 20)
#define ARDUINO_PIN_7           GPIO_PIN(PA, 21)

#define ARDUINO_PIN_8           GPIO_PIN(PA, 6)
#define ARDUINO_PIN_9           GPIO_PIN(PA, 7)
#define ARDUINO_PIN_10          GPIO_PIN(PA, 18)
#define ARDUINO_PIN_11          GPIO_PIN(PA, 16)
#define ARDUINO_PIN_12          GPIO_PIN(PA, 19)
#define ARDUINO_PIN_13          GPIO_PIN(PA, 17) /* on-board LED */

/* analog pins as digital pin: */
#define ARDUINO_PIN_14          GPIO_PIN(PA, 2)
#define ARDUINO_PIN_15          GPIO_PIN(PB, 8)
#define ARDUINO_PIN_16          GPIO_PIN(PB, 9)
#define ARDUINO_PIN_17          GPIO_PIN(PA, 4)
#define ARDUINO_PIN_18          GPIO_PIN(PA, 5)
#define ARDUINO_PIN_19          GPIO_PIN(PB, 2)

#define ARDUINO_PIN_LAST        19
/** @} */

/**
 * @name    Aliases for analog pins
 * @{
 */
#define ARDUINO_PIN_A0          ARDUINO_PIN_14
#define ARDUINO_PIN_A1          ARDUINO_PIN_15
#define ARDUINO_PIN_A2          ARDUINO_PIN_16
#define ARDUINO_PIN_A3          ARDUINO_PIN_17
#define ARDUINO_PIN_A4          ARDUINO_PIN_18
#define ARDUINO_PIN_A5          ARDUINO_PIN_19
/** @} */

/**
 * @name    Mapping of Arduino analog pins to RIOT ADC lines
 * @{
 */
#define ARDUINO_A0              ADC_LINE(0)
#define ARDUINO_A1              ADC_LINE(1)
#define ARDUINO_A2              ADC_LINE(2)
#define ARDUINO_A3              ADC_LINE(3)
#define ARDUINO_A4              ADC_LINE(4)
#define ARDUINO_A5              ADC_LINE(5)

#define ARDUINO_ANALOG_PIN_LAST 5
/** @} */

/**
 * @name    Mapping of Arduino pins to RIOT PWM dev and channel pairs
 * @{
 */
/**
 * @brief   PWM frequency
 */
#define ARDUINO_PWM_FREQU       (732U)

#define ARDUINO_PIN_3_PWM_DEV   PWM_DEV(0)
#define ARDUINO_PIN_3_PWM_CHAN  1

#define ARDUINO_PIN_4_PWM_DEV   PWM_DEV(0)
#define ARDUINO_PIN_4_PWM_CHAN  0

#define ARDUINO_PIN_8_PWM_DEV   PWM_DEV(1)
#define ARDUINO_PIN_8_PWM_CHAN  0

#define ARDUINO_PIN_9_PWM_DEV   PWM_DEV(1)
#define ARDUINO_PIN_9_PWM_CHAN  1
/** @} */

#ifdef __cplusplus
}
#endif

#endif /* ARDUINO_IOMAP_H */
/** @} */