/*
 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

#define MOCK "mock: "

#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 <errno.h>
    
#include "binary.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 DISABLED  0x00
#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 unsigned int 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);
    
    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);
    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 esp_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 <pgmspace.h>

#include "WCharacter.h"
#include "WString.h"

#include "HardwareSerial.h"
#include "Esp.h"
#include "Updater.h"
#include "debug.h"

#if 0
#ifndef _GLIBCXX_VECTOR
// arduino is not compatible with std::vector
#define min(a,b) ((a)<(b)?(a):(b))
#define max(a,b) ((a)>(b)?(a):(b))
#endif
#endif

#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 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 /* Arduino_h */
