text: /*
   Arduino.h - Main include file for the Arduino SDK
   Copyright (c) 2005-2013 Arduino Team.  All right reserved.
  
   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 Arduino_h
  #define Arduino_h
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #include <stdlib.h>
  #include <stdint.h>
  #include <stdbool.h>
  #include <stddef.h>
  #include <stdarg.h>
  #include <stdio.h>
  #include <string.h>
  #include <math.h>
  
  #include "stdlib_noniso.h"
  #include "binary.h"
  #include "esp8266_peri.h"
  #include "twi.h"
  #include "core_esp8266_features.h"
  
  #define HIGH 0x1
  #define LOW  0x0
  
  #define PWMRANGE 1023
  
  //GPIO FUNCTIONS
  #define INPUT             0x00
  #define INPUT_PULLUP      0x02
  #define INPUT_PULLDOWN_16 0x04 // PULLDOWN only possible for pin16
  #define OUTPUT            0x01
  #define OUTPUT_OPEN_DRAIN 0x03
  #define WAKEUP_PULLUP     0x05
  #define WAKEUP_PULLDOWN   0x07
  #define SPECIAL           0xF8 //defaults to the usable BUSes uart0rx/tx uart1tx and hspi
  #define FUNCTION_0        0x08
  #define FUNCTION_1        0x18
  #define FUNCTION_2        0x28
  #define FUNCTION_3        0x38
  #define FUNCTION_4        0x48
  
  #define PI 3.1415926535897932384626433832795
  #define HALF_PI 1.5707963267948966192313216916398
  #define TWO_PI 6.283185307179586476925286766559
  #define DEG_TO_RAD 0.017453292519943295769236907684886
  #define RAD_TO_DEG 57.295779513082320876798154814105
  #define EULER 2.718281828459045235360287471352
  
  #define SERIAL  0x0
  #define DISPLAY 0x1
  
  #define LSBFIRST 0
  #define MSBFIRST 1
  
  //Interrupt Modes
  #define RISING    0x01
  #define FALLING   0x02
  #define CHANGE    0x03
  #define ONLOW     0x04
  #define ONHIGH    0x05
  #define ONLOW_WE  0x0C
  #define ONHIGH_WE 0x0D
  
  #define DEFAULT 1
  #define EXTERNAL 0
  
  //timer dividers
  #define TIM_DIV1 	0 //80MHz (80 ticks/us - 104857.588 us max)
  #define TIM_DIV16	1 //5MHz (5 ticks/us - 1677721.4 us max)
  #define TIM_DIV265	3 //312.5Khz (1 tick = 3.2us - 26843542.4 us max)
  //timer int_types
  #define TIM_EDGE	0
  #define TIM_LEVEL	1
  //timer reload values
  #define TIM_SINGLE	0 //on interrupt routine you need to write a new value to start the timer again
  #define TIM_LOOP	1 //on interrupt the counter will start with the same value again
  
  #define timer1_read()           (T1V)
  #define timer1_enabled()        ((T1C & (1 << TCTE)) != 0)
  #define timer1_interrupted()    ((T1C & (1 << TCIS)) != 0)
  
  typedef void(*timercallback)(void);
  
  void timer1_isr_init(void);
  void timer1_enable(uint8_t divider, uint8_t int_type, uint8_t reload);
  void timer1_disable(void);
  void timer1_attachInterrupt(timercallback userFunc);
  void timer1_detachInterrupt(void);
  void timer1_write(uint32_t ticks); //maximum ticks 8388607
  
  // timer0 is a special CPU timer that has very high resolution but with
  // limited control.
  // it uses CCOUNT (ESP.GetCycleCount()) as the non-resetable timer counter
  // it does not support divide, type, or reload flags
  // it is auto-disabled when the compare value matches CCOUNT
  // it is auto-enabled when the compare value changes
  #define timer0_interrupted()    (ETS_INTR_PENDING() & (_BV(ETS_COMPARE0_INUM)))
  #define timer0_read() ((__extension__({uint32_t count;__asm__ __volatile__("esync; rsr %0,ccompare0":"=a" (count));count;})))
  #define timer0_write(count) __asm__ __volatile__("wsr %0,ccompare0; esync"::"a" (count) : "memory")
  
  void timer0_isr_init(void);
  void timer0_attachInterrupt(timercallback userFunc);
  void timer0_detachInterrupt(void);
  
  // undefine stdlib's abs if encountered
  #ifdef abs
  #undef abs
  #endif
  
  #define abs(x) ((x)>0?(x):-(x))
  #define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
  #define round(x)     ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))
  #define radians(deg) ((deg)*DEG_TO_RAD)
  #define degrees(rad) ((rad)*RAD_TO_DEG)
  #define sq(x) ((x)*(x))
  
  void ets_intr_lock();
  void ets_intr_unlock();
  
  #ifndef __STRINGIFY
  #define __STRINGIFY(a) #a
  #endif
  
  // these low level routines provide a replacement for SREG interrupt save that AVR uses
  // but are esp8266 specific. A normal use pattern is like
  //
  //{
  //    uint32_t savedPS = xt_rsil(1); // this routine will allow level 2 and above
  //    // do work here
  //    xt_wsr_ps(savedPS); // restore the state
  //}
  //
  // level (0-15), interrupts of the given level and above will be active
  // level 15 will disable ALL interrupts,
  // level 0 will enable ALL interrupts,
  //
  #define xt_rsil(level) (__extension__({uint32_t state; __asm__ __volatile__("rsil %0," __STRINGIFY(level) : "=a" (state)); state;}))
  #define xt_wsr_ps(state)  __asm__ __volatile__("wsr %0,ps; isync" :: "a" (state) : "memory")
  
  #define interrupts() xt_rsil(0)
  #define noInterrupts() xt_rsil(15)
  
  
  #define clockCyclesPerMicrosecond() ( F_CPU / 1000000L )
  #define clockCyclesToMicroseconds(a) ( (a) / clockCyclesPerMicrosecond() )
  #define microsecondsToClockCycles(a) ( (a) * clockCyclesPerMicrosecond() )
  
  #define lowByte(w) ((uint8_t) ((w) & 0xff))
  #define highByte(w) ((uint8_t) ((w) >> 8))
  
  #define bitRead(value, bit) (((value) >> (bit)) & 0x01)
  #define bitSet(value, bit) ((value) |= (1UL << (bit)))
  #define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
  #define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
  
  // avr-libc defines _NOP() since 1.6.2
  #ifndef _NOP
  #define _NOP() do { __asm__ volatile ("nop"); } while (0)
  #endif
  
  typedef uint16_t word;
  
  #define bit(b) (1UL << (b))
  #define _BV(b) (1UL << (b))
  
  typedef uint8_t boolean;
  typedef uint8_t byte;
  
  void init(void);
  void initVariant(void);
  
  int atexit(void (*func)()) __attribute__((weak));
  
  void pinMode(uint8_t pin, uint8_t mode);
  void digitalWrite(uint8_t pin, uint8_t val);
  int digitalRead(uint8_t pin);
  int analogRead(uint8_t pin);
  void analogReference(uint8_t mode);
  void analogWrite(uint8_t pin, int val);
  void analogWriteFreq(uint32_t freq);
  void analogWriteRange(uint32_t range);
  
  unsigned long millis(void);
  unsigned long micros(void);
  uint64_t micros64(void);
  void delay(unsigned long);
  void delayMicroseconds(unsigned int us);
  unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout);
  unsigned long pulseInLong(uint8_t pin, uint8_t state, unsigned long timeout);
  
  void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val);
  uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder);
  
  void attachInterrupt(uint8_t pin, void (*)(void), int mode);
  void detachInterrupt(uint8_t pin);
  
  void setup(void);
  void loop(void);
  
  void yield(void);
  void optimistic_yield(uint32_t interval_us);
  
  #define digitalPinToPort(pin)       (0)
  #define digitalPinToBitMask(pin)    (1UL << (pin))
  #define digitalPinToTimer(pin)      (0)
  #define portOutputRegister(port)    ((volatile uint32_t*) &GPO)
  #define portInputRegister(port)     ((volatile uint32_t*) &GPI)
  #define portModeRegister(port)      ((volatile uint32_t*) &GPE)
  
  #define NOT_A_PIN -1
  #define NOT_A_PORT -1
  #define NOT_AN_INTERRUPT -1
  #define NOT_ON_TIMER 0
  
  #ifdef __cplusplus
  } // extern "C"
  #endif
  
  #ifdef __cplusplus
  #include <algorithm>
  #include "pgmspace.h"
  
  #include "WCharacter.h"
  #include "WString.h"
  
  #include "HardwareSerial.h"
  #include "Esp.h"
  #include "Updater.h"
  #include "debug.h"
  
  using std::min;
  using std::max;
  using std::isinf;
  using std::isnan;
  
  #define _min(a,b) ((a)<(b)?(a):(b))
  #define _max(a,b) ((a)>(b)?(a):(b))
  
  uint16_t makeWord(uint16_t w);
  uint16_t makeWord(byte h, byte l);
  
  #define word(...) makeWord(__VA_ARGS__)
  
  unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout = 1000000L);
  unsigned long pulseInLong(uint8_t pin, uint8_t state, unsigned long timeout = 1000000L);
  
  void tone(uint8_t _pin, unsigned int frequency, unsigned long duration = 0);
  void noTone(uint8_t _pin);
  
  // WMath prototypes
  long random(long);
  long random(long, long);
  void randomSeed(unsigned long);
  long secureRandom(long);
  long secureRandom(long, long);
  long map(long, long, long, long, long);
  
  extern "C" void configTime(long timezone, int daylightOffset_sec,
      const char* server1, const char* server2 = nullptr, const char* server3 = nullptr);
  
  #endif
  
  #include "pins_arduino.h"
  
  #endif
  