/*****************************************************************
 METP0000_lib Arduino library
 Structure based on standard Arduino LiquidCrystal.h library
 Some code is based on code developed and
   maintanied by MCUdude
   https://github.com/MCUdude/KTMS1201
   Based on Tronixstruff's work
     tronixstuff.com/2013/03/11/arduino-and-ktm-s1201-lcd-modules
     (Jeff Albertson, Robert W. Mech, John Boxall)
 Also incorporating font/code ideas from all over

 Conversion to supporting METP0000 module by Tony Wills
   2018-11-24 v 1.00 initial version
   2018-11-27 v 1.30 print.h version based on LiquidCrystal.h
*****************************************************************/

#ifndef METP0000_lib_h
#define METP0000_lib_h

#include <inttypes.h>
#include "Print.h"

//              ---   0x4 0x0 0x0
// 0x0 0x0 0x4 |   |  0x0 0x4 0x0
// 0x1 0x0 0x0  ---  
// 0x0 0x0 0x1 |   |  0x0 0x1 0x0
// 0x2 0x0 0x0  --- o 0x0 0x0 0x2
//                  ' 0x0 0x2 0x0

// These are the pins on the connector to the METP0000
//
// pin 1	Busy
// pin 2	Reset
// pin 3	Si
// pin 4	NSCk
// pin 5	CS
// pin 6	CD
// pin 7	GND
// pin 8	+5V

/* LCD characters */
static const uint16_t sevenSegHex[96] = {0x000/* */, 0x000/*!*/, 0x044/*"*/, 0x000/*#*/, 0x000/*$*/, 0x000/*%*/, 0x000/*&*/, 0x004/*'*/, 0x605/*(*/, 0x650/*)*/, 0x544/***/, 0x000/*+*/, 0x000/*,*/, 0x100/*-*/, 0x002/*.*/, 0x141/*/*/, \
                                         0x655/*0*/, 0x050/*1*/, 0x741/*2*/, 0x750/*3*/, 0x154/*4*/, 0x714/*5*/, 0x715/*6*/, 0x450/*7*/, 0x755/*8*/, 0x754/*9*/, 0x300/*:*/, 0x320/*:*/, 0x504/*<*/, 0x500/*=*/, 0x540/*>*/, 0x541/*?*/, \
                                         0x744/*@*/, 0x555/*A*/, 0x315/*B*/, 0x301/*C*/, 0x351/*D*/, 0x705/*E*/, 0x505/*F*/, 0x615/*G*/, 0x115/*H*/, 0x010/*I*/, 0x250/*J*/, 0x105/*K*/, 0x005/*L*/, 0x155/*M*/, 0x111/*N*/, 0x311/*O*/, 0x545/*P*/, 0x554/*Q*/, 0x101/*R*/, 0x714/*S*/, 0x305/*T*/, 0x211/*U*/, 0x255/*V*/, 0x355/*W*/, 0x055/*X*/, 0x354/*Y*/, 0x761/*Z*/, 0x605/*[*/, 0x114/*\\*/, 0x650/*]*/, 0x444/*^*/ , 0x200/*_*/, \
                                         0x040/*`*/, 0x555/*a*/, 0x315/*b*/, 0x301/*c*/, 0x351/*d*/, 0x705/*e*/, 0x505/*f*/, 0x615/*g*/, 0x115/*h*/, 0x010/*i*/, 0x250/*j*/, 0x105/*k*/, 0x005/*l*/, 0x155/*m*/, 0x111/*n*/, 0x311/*o*/, 0x545/*p*/, 0x554/*q*/, 0x101/*r*/, 0x714/*s*/, 0x305/*t*/, 0x211/*u*/, 0x255/*v*/, 0x355/*w*/, 0x055/*x*/, 0x354/*y*/, 0x761/*z*/, 0x605/*{*/, 0x014/*|*/ , 0x650/*}*/, 0x400/*~*/ , 0x000/**/};
                                         
const uint16_t _SetDp = 0x002;      // Set decimal point (Dp)
const uint16_t _SetComma = 0x020;   // Set comma

//const uint16_t _SetBar0 = 0x0002;   // Set Bar 0, first char, segment dp
//const uint16_t _SetBar1 = 0x6100;   // Set Bar 1, seventh char, segment g
//const uint16_t _SetBar2 = 0x6200;   // Set Bar 2, seventh char, segment d
//const uint16_t _SetBar3 = 0x6400;   // Set Bar 3, seventh char, segment a
//const uint16_t _SetBar4 = 0x5020;   // Set Bar 4, sixth char, segment comma
static const uint16_t barArray[5] = {0x0002, 0x6100, 0x6200, 0x6400, 0x5020};

/* LCD modes */
const uint8_t _Mode = 0x48;     // LCD speed. See uPD7225 datasheet for more info
const uint8_t _Sync = 0x31;     // Synchronized transfer
const uint8_t _USync = 0x30;    // Unsynchronized transfer
const uint8_t _PXfer = 0x38;    // Pause data transfer
const uint8_t _FFlash = 0x1b;   // Blink fast (~2 Hz)
const uint8_t _SFlash = 0x1a;   // Blink slow (~1 Hz)
const uint8_t _NoFlash = 0x18;  // No blink
const uint8_t _DispOn = 0x11;   // Display on
const uint8_t _DispOff = 0x10;  // Display off
const uint8_t _Decode = 0x15;   // Turn on segment decoding
const uint8_t _NoDecode = 0x14; // Turn off segment decoding
const uint8_t _LoadPtr = 0xe0;  // Load data pointer
const uint8_t _WriteMem = 0xd0; // Write immediate data to display memory
const uint8_t _OrDspMem = 0xb0; // OR display memory with immediate data
const uint8_t _AndDspMem = 0x90;// AND display memory with immediate data
const uint8_t _ClearDsp = 0x20; // Clear display memory
const uint8_t _WFlshMem = 0xc0; // Write immediate data to blink memory
const uint8_t _OrFlshMem = 0xa0;// OR blink memory with immmediate data
const uint8_t _AndFlshMem = 0x80;// AND blink memory with immmediate data
const uint8_t _ClearFlsh = 0x00;// Clears all blink memory bits

const bool fast = true;
const bool slow = false;
const uint8_t busyDelay = 2;


class METP0000 : public Print {
public:
  METP0000(uint8_t NSCK, uint8_t SI, uint8_t BUSY, uint8_t CS);
  METP0000(uint8_t NSCK, uint8_t SI, uint8_t CS);
  
  void init(uint8_t NSCK, uint8_t SI, uint8_t BUSY, uint8_t CS);

  void begin(uint8_t cols = 6, uint8_t rows = 1, uint8_t charsize = 0);  //parameters just to maintain compatibility

  //void clear();
  void clear(uint8_t start = 0, uint8_t stop = 5);
  void home();

  void noDisplay();
  void display();
  void noBlink();
  void blink();
  void noCursor();
  void cursor();
  void scrollDisplayLeft();
  void scrollDisplayRight();
  void leftToRight();
  void rightToLeft();
  void autoscroll();
  void noAutoscroll();

  void createChar(uint8_t, uint8_t[]);
  //void setCursor(uint8_t, uint8_t); 
  void setCursor(uint8_t cursorPos = 0, uint8_t row = 0); // row parameter just to maintain compatibility
  virtual size_t write(uint8_t);
  void command(uint8_t);
  void customChar(uint16_t);
  void flash(bool speed = slow);
  void noFlash();
  void setFlash();
  void unSetFlash();
  void setSegment(uint16_t seg);
  void clearSegment(uint16_t seg);
    

private:
    // Private methods
    void send(uint8_t);
    void writeChar(uint16_t);
    void wait();
    void waitClk();

    // Private variables
    uint8_t _cursorPos = 0;
    // Digital pins
    uint8_t _SCK = 0;
    uint8_t _SI = 0;
    uint8_t _BUSY = 255;
    uint8_t _CS = 0;
};

#endif