/**
 * Marlin 3D Printer Firmware
 * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/**
 * Arduino Mega with RAMPS v1.4 (or v1.3) pin assignments
 *
 * Applies to the following boards:
 *
 *  RAMPS_14_EFB (Hotend, Fan, Bed)
 *  RAMPS_14_EEB (Hotend0, Hotend1, Bed)
 *  RAMPS_14_EFF (Hotend, Fan0, Fan1)
 *  RAMPS_14_EEF (Hotend0, Hotend1, Fan)
 *  RAMPS_14_SF  (Spindle, Controller Fan)
 *
 *  RAMPS_13_EFB (Hotend, Fan, Bed)
 *  RAMPS_13_EEB (Hotend0, Hotend1, Bed)
 *  RAMPS_13_EFF (Hotend, Fan0, Fan1)
 *  RAMPS_13_EEF (Hotend0, Hotend1, Fan)
 *  RAMPS_13_SF  (Spindle, Controller Fan)
 *
 *  Other pins_MYBOARD.h files may override these defaults
 *
 *  Differences between
 *  RAMPS_13 | RAMPS_14
 *         7 | 11
 */

#if !defined(__AVR_ATmega1280__) && !defined(__AVR_ATmega2560__)
  #error "Oops!  Make sure you have 'Arduino Mega' selected from the 'Tools -> Boards' menu."
#endif

#ifndef BOARD_NAME
  #define BOARD_NAME "RAMPS 1.4"
#endif

#define LARGE_FLASH true

//
// Servos
//
#ifdef IS_RAMPS_13
  #define SERVO0_PIN        7 // RAMPS_13 // Will conflict with BTN_EN2 on LCD_I2C_VIKI
#else
  #define SERVO0_PIN       11
#endif
#define SERVO1_PIN          6
#define SERVO2_PIN          5
#ifndef SERVO3_PIN
  #define SERVO3_PIN        4
#endif

//
// Limit Switches
//
#define X_MIN_PIN           3
#ifndef X_MAX_PIN
  #define X_MAX_PIN         2
#endif
#define Y_MIN_PIN          14
#define Y_MAX_PIN          15
#define Z_MIN_PIN          18
#define Z_MAX_PIN          19

//
// Z Probe (when not Z_MIN_PIN)
//
#ifndef Z_MIN_PROBE_PIN
  #define Z_MIN_PROBE_PIN  32
#endif

//
// Steppers
//
#define X_STEP_PIN         54
#define X_DIR_PIN          55
#define X_ENABLE_PIN       38
#define X_CS_PIN           53

#define Y_STEP_PIN         60
#define Y_DIR_PIN          61
#define Y_ENABLE_PIN       56
#define Y_CS_PIN           49

#define Z_STEP_PIN         46
#define Z_DIR_PIN          48
#define Z_ENABLE_PIN       62
#define Z_CS_PIN           40

#define E0_STEP_PIN        26
#define E0_DIR_PIN         28
#define E0_ENABLE_PIN      24
#define E0_CS_PIN          42

#define E1_STEP_PIN        36
#define E1_DIR_PIN         34
#define E1_ENABLE_PIN      30
#define E1_CS_PIN          44

//
// Temperature Sensors
//
#define TEMP_0_PIN         13   // Analog Input
#define TEMP_1_PIN         15   // Analog Input
#define TEMP_BED_PIN       14   // Analog Input

// SPI for Max6675 or Max31855 Thermocouple
#if DISABLED(SDSUPPORT)
  #define MAX6675_SS       66 // Do not use pin 53 if there is even the remote possibility of using Display/SD card
#else
  #define MAX6675_SS       66 // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
#endif

//
// Augmentation for auto-assigning RAMPS plugs
//
#if DISABLED(IS_RAMPS_EEB) && DISABLED(IS_RAMPS_EEF) && DISABLED(IS_RAMPS_EFB) && DISABLED(IS_RAMPS_EFF) && DISABLED(IS_RAMPS_SF) && !PIN_EXISTS(MOSFET_D)
  #if HOTENDS > 1
    #if TEMP_SENSOR_BED
      #define IS_RAMPS_EEB
    #else
      #define IS_RAMPS_EEF
    #endif
  #elif TEMP_SENSOR_BED
    #define IS_RAMPS_EFB
  #else
    #define IS_RAMPS_EFF
  #endif
#endif

//
// Heaters / Fans
//
#ifndef MOSFET_D_PIN
  #define MOSFET_D_PIN  -1
#endif
#ifndef RAMPS_D8_PIN
  #define RAMPS_D8_PIN   8
#endif
#ifndef RAMPS_D9_PIN
  #define RAMPS_D9_PIN   9
#endif
#ifndef RAMPS_D10_PIN
  #define RAMPS_D10_PIN 10
#endif

#define HEATER_0_PIN     RAMPS_D10_PIN

#if ENABLED(IS_RAMPS_EFB)                      // Hotend, Fan, Bed
  #define FAN_PIN        RAMPS_D9_PIN
  #define HEATER_BED_PIN RAMPS_D8_PIN
#elif ENABLED(IS_RAMPS_EEF)                    // Hotend, Hotend, Fan
  #define HEATER_1_PIN   RAMPS_D9_PIN
  #define FAN_PIN        RAMPS_D8_PIN
#elif ENABLED(IS_RAMPS_EEB)                    // Hotend, Hotend, Bed
  #define HEATER_1_PIN   RAMPS_D9_PIN
  #define HEATER_BED_PIN RAMPS_D8_PIN
#elif ENABLED(IS_RAMPS_EFF)                    // Hotend, Fan, Fan
  #define FAN_PIN        RAMPS_D9_PIN
  #define FAN1_PIN       RAMPS_D8_PIN
#elif ENABLED(IS_RAMPS_SF)                     // Spindle, Fan
  #define FAN_PIN        RAMPS_D8_PIN
#else                                          // Non-specific are "EFB" (i.e., "EFBF" or "EFBE")
  #define FAN_PIN        RAMPS_D9_PIN
  #define HEATER_BED_PIN RAMPS_D8_PIN
  #if HOTENDS == 1
    #define FAN1_PIN     MOSFET_D_PIN
  #else
    #define HEATER_1_PIN MOSFET_D_PIN
  #endif
#endif

#ifndef FAN_PIN
  #define FAN_PIN 4      // IO pin. Buffer needed
#endif

//
// Misc. Functions
//
#define SDSS               53
#define LED_PIN            13

#ifndef FILWIDTH_PIN
  #define FILWIDTH_PIN      5   // Analog Input on AUX2
#endif

// define digital pin 4 for the filament runout sensor. Use the RAMPS 1.4 digital input 4 on the servos connector
#define FIL_RUNOUT_PIN      4

#ifndef PS_ON_PIN
  #define PS_ON_PIN        12
#endif

#if ENABLED(CASE_LIGHT_ENABLE) && !PIN_EXISTS(CASE_LIGHT) && !defined(SPINDLE_LASER_ENABLE_PIN)
  #if !defined(NUM_SERVOS) || NUM_SERVOS == 0 // try to use servo connector first
    #define CASE_LIGHT_PIN   6      // MUST BE HARDWARE PWM
  #elif !(ENABLED(ULTRA_LCD) && ENABLED(NEWPANEL) \
      && (ENABLED(PANEL_ONE) || ENABLED(VIKI2) || ENABLED(miniVIKI) || ENABLED(MINIPANEL) || ENABLED(REPRAPWORLD_KEYPAD)))  // try to use AUX 2
    #define CASE_LIGHT_PIN   44     // MUST BE HARDWARE PWM
  #endif
#endif

//
// M3/M4/M5 - Spindle/Laser Control
//
#if ENABLED(SPINDLE_LASER_ENABLE) && !PIN_EXISTS(SPINDLE_LASER_ENABLE)
  #if !defined(NUM_SERVOS) || NUM_SERVOS == 0 // try to use servo connector first
    #define SPINDLE_LASER_ENABLE_PIN  4  // Pin should have a pullup/pulldown!
    #define SPINDLE_LASER_PWM_PIN     6  // MUST BE HARDWARE PWM
    #define SPINDLE_DIR_PIN           5
  #elif !(ENABLED(ULTRA_LCD) && ENABLED(NEWPANEL) \
      && (ENABLED(PANEL_ONE) || ENABLED(VIKI2) || ENABLED(miniVIKI) || ENABLED(MINIPANEL) || ENABLED(REPRAPWORLD_KEYPAD)))  // try to use AUX 2
    #define SPINDLE_LASER_ENABLE_PIN 40  // Pin should have a pullup/pulldown!
    #define SPINDLE_LASER_PWM_PIN    44  // MUST BE HARDWARE PWM
    #define SPINDLE_DIR_PIN          65
  #endif
#endif

//
// Průša i3 MK2 Multiplexer Support
//
#define E_MUX0_PIN         40   // Z_CS_PIN
#define E_MUX1_PIN         42   // E0_CS_PIN
#define E_MUX2_PIN         44   // E1_CS_PIN

//
// LCD / Controller
//
#if ENABLED(ULTRA_LCD)

  #if ENABLED(REPRAPWORLD_GRAPHICAL_LCD)
    #define LCD_PINS_RS         49 // CS chip select /SS chip slave select
    #define LCD_PINS_ENABLE     51 // SID (MOSI)
    #define LCD_PINS_D4         52 // SCK (CLK) clock
  #elif ENABLED(NEWPANEL) && ENABLED(PANEL_ONE)
    #define LCD_PINS_RS         40
    #define LCD_PINS_ENABLE     42
    #define LCD_PINS_D4         65
    #define LCD_PINS_D5         66
    #define LCD_PINS_D6         44
    #define LCD_PINS_D7         64
  #else
    #define LCD_PINS_RS         16
    #define LCD_PINS_ENABLE     17
    #define LCD_PINS_D4         23
    #define LCD_PINS_D5         25
    #define LCD_PINS_D6         27
    #define LCD_PINS_D7         29
    #if DISABLED(NEWPANEL)
      #define BEEPER_PIN        33
      // Buttons are attached to a shift register
      // Not wired yet
      //#define SHIFT_CLK 38
      //#define SHIFT_LD 42
      //#define SHIFT_OUT 40
      //#define SHIFT_EN 17
    #endif
  #endif

  #if ENABLED(NEWPANEL)

    #if ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER)

      #define BEEPER_PIN        37

      #define BTN_EN1           31
      #define BTN_EN2           33
      #define BTN_ENC           35

      #define SD_DETECT_PIN     49
      #define KILL_PIN          41

      #if ENABLED(BQ_LCD_SMART_CONTROLLER)
        #define LCD_BACKLIGHT_PIN 39
      #endif

    #elif ENABLED(REPRAPWORLD_GRAPHICAL_LCD)

      #define BTN_EN1           64
      #define BTN_EN2           59
      #define BTN_ENC           63
      #define SD_DETECT_PIN     42

    #elif ENABLED(LCD_I2C_PANELOLU2)

      #define BTN_EN1           47
      #define BTN_EN2           43
      #define BTN_ENC           32
      #define LCD_SDSS          53
      #define SD_DETECT_PIN     -1
      #define KILL_PIN          41

    #elif ENABLED(LCD_I2C_VIKI)

      #define BTN_EN1           22 // http://files.panucatt.com/datasheets/viki_wiring_diagram.pdf explains 40/42.
      #define BTN_EN2            7 // 22/7 are unused on RAMPS_14. 22 is unused and 7 the SERVO0_PIN on RAMPS_13.

      #define BTN_ENC           -1
      #define LCD_SDSS          53
      #define SD_DETECT_PIN     49

    #elif ENABLED(VIKI2) || ENABLED(miniVIKI)

      #define BEEPER_PIN        33

      // Pins for DOGM SPI LCD Support
      #define DOGLCD_A0         44
      #define DOGLCD_CS         45
      #define LCD_SCREEN_ROT_180

      #define BTN_EN1           22
      #define BTN_EN2            7
      #define BTN_ENC           39

      #define SDSS              53
      #define SD_DETECT_PIN     -1 // Pin 49 for display sd interface, 72 for easy adapter board

      #define KILL_PIN          31

      #define STAT_LED_RED_PIN  32
      #define STAT_LED_BLUE_PIN 35

    #elif ENABLED(ELB_FULL_GRAPHIC_CONTROLLER)
      #define BTN_EN1           35
      #define BTN_EN2           37
      #define BTN_ENC           31
      #define SD_DETECT_PIN     49
      #define LCD_SDSS          53
      #define KILL_PIN          41
      #define BEEPER_PIN        23
      #define DOGLCD_CS         29
      #define DOGLCD_A0         27
      #define LCD_BACKLIGHT_PIN 33
    #elif ENABLED(MINIPANEL)
      #define BEEPER_PIN        42
      // Pins for DOGM SPI LCD Support
      #define DOGLCD_A0         44
      #define DOGLCD_CS         66
      #define LCD_BACKLIGHT_PIN 65 // backlight LED on A11/D65
      #define SDSS              53

      #define KILL_PIN          64
      // GLCD features
      //#define LCD_CONTRAST   190
      // Uncomment screen orientation
      //#define LCD_SCREEN_ROT_90
      //#define LCD_SCREEN_ROT_180
      //#define LCD_SCREEN_ROT_270
      // The encoder and click button
      #define BTN_EN1           40
      #define BTN_EN2           63
      #define BTN_ENC           59
      // not connected to a pin
      #define SD_DETECT_PIN     49

    #else

      // Beeper on AUX-4
      #define BEEPER_PIN        33

      // buttons are directly attached using AUX-2
      #if ENABLED(REPRAPWORLD_KEYPAD)
        #define BTN_EN1         64
        #define BTN_EN2         59
        #define BTN_ENC         63
        #define SHIFT_OUT       40
        #define SHIFT_CLK       44
        #define SHIFT_LD        42
      #elif ENABLED(PANEL_ONE)
        #define BTN_EN1         59 // AUX2 PIN 3
        #define BTN_EN2         63 // AUX2 PIN 4
        #define BTN_ENC         49 // AUX3 PIN 7
      #else
        #define BTN_EN1         37
        #define BTN_EN2         35
        #define BTN_ENC         31
      #endif

      #if ENABLED(G3D_PANEL)
        #define SD_DETECT_PIN   49
        #define KILL_PIN        41
      #else
        //#define SD_DETECT_PIN -1 // Ramps doesn't use this
      #endif

    #endif
  #endif // NEWPANEL

#endif // ULTRA_LCD
