common.h

/*
  common.h - Commoon pin definition functions for ESP8266 boards
  Part of Arduino - http://www.arduino.cc/

  Copyright (c) 2007 David A. Mellis
  Modified for ESP8266 platform by Ivan Grokhotkov, 2014-2016.

  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., 59 Temple Place, Suite 330,
  Boston, MA  02111-1307  USA

  $Id: wiring.h 249 2007-02-03 16:52:51Z mellis $
*/

#ifndef GENERIC_COMMON_H
#define GENERIC_COMMON_H

#define EXTERNAL_NUM_INTERRUPTS 16
#define NUM_DIGITAL_PINS        17
#define NUM_ANALOG_INPUTS       1

// Pins 9 and 10 are available, go to positive logic since it's clearer 
#define isFlashInterfacePin(p)      ((p) == 6 || (p) == 7 || (p) == 8 || (p) == 11)

#define analogInputToDigitalPin(p)  ((p > 0) ? NOT_A_PIN : 0)
#define digitalPinToInterrupt(p)    (((p) < EXTERNAL_NUM_INTERRUPTS)? (p) : NOT_AN_INTERRUPT)
#define digitalPinHasPWM(p)         (((p) < NUM_DIGITAL_PINS && !isFlashInterfacePin(p))? 1 : 0)

#define PIN_SPI_SS   (15)
#define PIN_SPI_MOSI (13)
#define PIN_SPI_MISO (12)
#define PIN_SPI_SCK  (14)

static const uint8_t SS    = PIN_SPI_SS;
static const uint8_t MOSI  = PIN_SPI_MOSI;
static const uint8_t MISO  = PIN_SPI_MISO;
static const uint8_t SCK   = PIN_SPI_SCK;

#ifndef PIN_A0
#define PIN_A0 (17)
#endif /* PIN_A0 */

static const uint8_t A0 = PIN_A0;

// These serial port names are intended to allow libraries and architecture-neutral
// sketches to automatically default to the correct port name for a particular type
// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
// the first hardware serial port whose RX/TX pins are not dedicated to another use.
//
// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
//
// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
//
// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
//
// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
//
// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
//                            pins are NOT connected to anything by default.
#define SERIAL_PORT_MONITOR        Serial
#define SERIAL_PORT_USBVIRTUAL     Serial
#define SERIAL_PORT_HARDWARE       Serial
#define SERIAL_PORT_HARDWARE_OPEN  Serial1

#ifdef LED_BUILTIN
#ifdef __cplusplus
extern "C"
#endif
const int BUILTIN_LED __attribute__((deprecated, weak)) = LED_BUILTIN;
#endif

#endif /* GENERIC_COMMON_H */