/*!
 * @file Adafruit_GC9A01A.h
 *
 * Library to provide GC9A01A display driver support in Adafruit_GFX.
 *
 * Adafruit invests time and resources providing this open source code,
 * please support Adafruit and open-source hardware by purchasing
 * products from Adafruit!
 *
 * This library depends on <a href="https://github.com/adafruit/Adafruit_GFX">
 * Adafruit_GFX</a> being present on your system. Please make sure you have
 * installed the latest version before using this library.
 *
 * Written by Limor "ladyada" Fried for Adafruit Industries.
 * GC9A01A adaptation by Phil "PaintYourDragon" Burgess.
 *
 * BSD license, all text here must be included in any redistribution.
 *
 */

#pragma once

#include "Adafruit_GFX.h"
#include "Arduino.h"
#include "Print.h"
#include <Adafruit_SPITFT.h>
#include <Adafruit_SPITFT_Macros.h>
#include <SPI.h>

#define GC9A01A_TFTWIDTH 240  ///< Display width in pixels
#define GC9A01A_TFTHEIGHT 240 ///< Display height in pixels

#define GC9A01A_SWRESET 0x01   ///< Software Reset (maybe, not documented)
#define GC9A01A_RDDID 0x04     ///< Read display identification information
#define GC9A01A_RDDST 0x09     ///< Read Display Status
#define GC9A01A_SLPIN 0x10     ///< Enter Sleep Mode
#define GC9A01A_SLPOUT 0x11    ///< Sleep Out
#define GC9A01A_PTLON 0x12     ///< Partial Mode ON
#define GC9A01A_NORON 0x13     ///< Normal Display Mode ON
#define GC9A01A_INVOFF 0x20    ///< Display Inversion OFF
#define GC9A01A_INVON 0x21     ///< Display Inversion ON
#define GC9A01A_DISPOFF 0x28   ///< Display OFF
#define GC9A01A_DISPON 0x29    ///< Display ON
#define GC9A01A_CASET 0x2A     ///< Column Address Set
#define GC9A01A_RASET 0x2B     ///< Row Address Set
#define GC9A01A_RAMWR 0x2C     ///< Memory Write
#define GC9A01A_PTLAR 0x30     ///< Partial Area
#define GC9A01A_VSCRDEF 0x33   ///< Vertical Scrolling Definition
#define GC9A01A_TEOFF 0x34     ///< Tearing Effect Line OFF
#define GC9A01A_TEON 0x35      ///< Tearing Effect Line ON
#define GC9A01A_MADCTL 0x36    ///< Memory Access Control
#define GC9A01A_VSCRSADD 0x37  ///< Vertical Scrolling Start Address
#define GC9A01A_IDLEOFF 0x38   ///< Idle mode OFF
#define GC9A01A_IDLEON 0x39    ///< Idle mode ON
#define GC9A01A_COLMOD 0x3A    ///< Pixel Format Set
#define GC9A01A_CONTINUE 0x3C  ///< Write Memory Continue
#define GC9A01A_TEARSET 0x44   ///< Set Tear Scanline
#define GC9A01A_GETLINE 0x45   ///< Get Scanline
#define GC9A01A_SETBRIGHT 0x51 ///< Write Display Brightness
#define GC9A01A_SETCTRL 0x53   ///< Write CTRL Display
#define GC9A01A1_POWER7 0xA7   ///< Power Control 7
#define GC9A01A_TEWC 0xBA      ///< Tearing effect width control
#define GC9A01A1_POWER1 0xC1   ///< Power Control 1
#define GC9A01A1_POWER2 0xC3   ///< Power Control 2
#define GC9A01A1_POWER3 0xC4   ///< Power Control 3
#define GC9A01A1_POWER4 0xC9   ///< Power Control 4
#define GC9A01A_RDID1 0xDA     ///< Read ID 1
#define GC9A01A_RDID2 0xDB     ///< Read ID 2
#define GC9A01A_RDID3 0xDC     ///< Read ID 3
#define GC9A01A_FRAMERATE 0xE8 ///< Frame rate control
#define GC9A01A_SPI2DATA 0xE9  ///< SPI 2DATA control
#define GC9A01A_INREGEN2 0xEF  ///< Inter register enable 2
#define GC9A01A_GAMMA1 0xF0    ///< Set gamma 1
#define GC9A01A_GAMMA2 0xF1    ///< Set gamma 2
#define GC9A01A_GAMMA3 0xF2    ///< Set gamma 3
#define GC9A01A_GAMMA4 0xF3    ///< Set gamma 4
#define GC9A01A_IFACE 0xF6     ///< Interface control
#define GC9A01A_INREGEN1 0xFE  ///< Inter register enable 1

// Color definitions
#define GC9A01A_BLACK 0x0000       ///<   0,   0,   0
#define GC9A01A_NAVY 0x000F        ///<   0,   0, 123
#define GC9A01A_DARKGREEN 0x03E0   ///<   0, 125,   0
#define GC9A01A_DARKCYAN 0x03EF    ///<   0, 125, 123
#define GC9A01A_MAROON 0x7800      ///< 123,   0,   0
#define GC9A01A_PURPLE 0x780F      ///< 123,   0, 123
#define GC9A01A_OLIVE 0x7BE0       ///< 123, 125,   0
#define GC9A01A_LIGHTGREY 0xC618   ///< 198, 195, 198
#define GC9A01A_DARKGREY 0x7BEF    ///< 123, 125, 123
#define GC9A01A_BLUE 0x001F        ///<   0,   0, 255
#define GC9A01A_GREEN 0x07E0       ///<   0, 255,   0
#define GC9A01A_CYAN 0x07FF        ///<   0, 255, 255
#define GC9A01A_RED 0xF800         ///< 255,   0,   0
#define GC9A01A_MAGENTA 0xF81F     ///< 255,   0, 255
#define GC9A01A_YELLOW 0xFFE0      ///< 255, 255,   0
#define GC9A01A_WHITE 0xFFFF       ///< 255, 255, 255
#define GC9A01A_ORANGE 0xFD20      ///< 255, 165,   0
#define GC9A01A_GREENYELLOW 0xAFE5 ///< 173, 255,  41
#define GC9A01A_PINK 0xFC18        ///< 255, 130, 198

/*!
@brief Class to manage hardware interface with GC9A01A chipset.
*/
class Adafruit_GC9A01A : public Adafruit_SPITFT {
public:
  Adafruit_GC9A01A(int8_t _CS, int8_t _DC, int8_t _MOSI, int8_t _SCLK,
                   int8_t _RST = -1, int8_t _MISO = -1);
  Adafruit_GC9A01A(int8_t _CS, int8_t _DC, int8_t _RST = -1);
#if !defined(ESP8266)
  Adafruit_GC9A01A(SPIClass *spiClass, int8_t dc, int8_t cs = -1,
                   int8_t rst = -1);
#endif // end !ESP8266
  Adafruit_GC9A01A(tftBusWidth busWidth, int8_t d0, int8_t wr, int8_t dc,
                   int8_t cs = -1, int8_t rst = -1, int8_t rd = -1);

  void begin(uint32_t freq = 0);
  void setRotation(uint8_t r);
  void invertDisplay(bool i);

  void setAddrWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h);
};