/*!
 * @file Adafruit_ILI9341.h
 *
 * This is the documentation for Adafruit's ILI9341 driver for the
 * Arduino platform.
 *
 * This library works with the Adafruit 2.8" Touch Shield V2 (SPI)
 *    http://www.adafruit.com/products/1651
 * Adafruit 2.4" TFT LCD with Touchscreen Breakout w/MicroSD Socket - ILI9341
 *    https://www.adafruit.com/product/2478
 * 2.8" TFT LCD with Touchscreen Breakout Board w/MicroSD Socket - ILI9341
 *    https://www.adafruit.com/product/1770
 * 2.2" 18-bit color TFT LCD display with microSD card breakout - ILI9340
 *    https://www.adafruit.com/product/1770
 * TFT FeatherWing - 2.4" 320x240 Touchscreen For All Feathers
 *    https://www.adafruit.com/product/3315
 *
 * These displays use SPI to communicate, 4 or 5 pins are required
 * to interface (RST is optional).
 *
 * 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.
 *
 * BSD license, all text here must be included in any redistribution.
 *
 */

#ifndef _ADAFRUIT_ILI9341H_
#define _ADAFRUIT_ILI9341H_

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

#define ILI9341_TFTWIDTH 240    ///< ILI9341 max TFT width
#define ILI9341_TFTHEIGHT 320   ///< ILI9341 max TFT height

#define ILI9341_NOP 0x00        ///< No-op register
#define ILI9341_SWRESET 0x01    ///< Software reset register
#define ILI9341_RDDID 0x04      ///< Read display identification information
#define ILI9341_RDDST 0x09      ///< Read Display Status

#define ILI9341_SLPIN 0x10      ///< Enter Sleep Mode
#define ILI9341_SLPOUT 0x11     ///< Sleep Out
#define ILI9341_PTLON 0x12      ///< Partial Mode ON
#define ILI9341_NORON 0x13      ///< Normal Display Mode ON

#define ILI9341_RDMODE 0x0A     ///< Read Display Power Mode
#define ILI9341_RDMADCTL 0x0B   ///< Read Display MADCTL
#define ILI9341_RDPIXFMT 0x0C   ///< Read Display Pixel Format
#define ILI9341_RDIMGFMT 0x0D   ///< Read Display Image Format
#define ILI9341_RDSELFDIAG 0x0F ///< Read Display Self-Diagnostic Result

#define ILI9341_INVOFF 0x20     ///< Display Inversion OFF
#define ILI9341_INVON 0x21      ///< Display Inversion ON
#define ILI9341_GAMMASET 0x26   ///< Gamma Set
#define ILI9341_DISPOFF 0x28    ///< Display OFF
#define ILI9341_DISPON 0x29     ///< Display ON

#define ILI9341_CASET 0x2A      ///< Column Address Set
#define ILI9341_PASET 0x2B      ///< Page Address Set
#define ILI9341_RAMWR 0x2C      ///< Memory Write
#define ILI9341_RAMRD 0x2E      ///< Memory Read

#define ILI9341_PTLAR 0x30      ///< Partial Area
#define ILI9341_VSCRDEF 0x33    ///< Vertical Scrolling Definition
#define ILI9341_MADCTL 0x36     ///< Memory Access Control
#define ILI9341_VSCRSADD 0x37   ///< Vertical Scrolling Start Address
#define ILI9341_PIXFMT 0x3A     ///< COLMOD: Pixel Format Set

#define ILI9341_FRMCTR1 \
  0xB1                          ///< Frame Rate Control (In Normal Mode/Full Colors)
#define ILI9341_FRMCTR2 0xB2    ///< Frame Rate Control (In Idle Mode/8 colors)
#define ILI9341_FRMCTR3 \
  0xB3                          ///< Frame Rate control (In Partial Mode/Full Colors)
#define ILI9341_INVCTR 0xB4     ///< Display Inversion Control
#define ILI9341_DFUNCTR 0xB6    ///< Display Function Control

#define ILI9341_PWCTR1 0xC0     ///< Power Control 1
#define ILI9341_PWCTR2 0xC1     ///< Power Control 2
#define ILI9341_PWCTR3 0xC2     ///< Power Control 3
#define ILI9341_PWCTR4 0xC3     ///< Power Control 4
#define ILI9341_PWCTR5 0xC4     ///< Power Control 5
#define ILI9341_VMCTR1 0xC5     ///< VCOM Control 1
#define ILI9341_VMCTR2 0xC7     ///< VCOM Control 2

#define ILI9341_RDID1 0xDA      ///< Read ID 1
#define ILI9341_RDID2 0xDB      ///< Read ID 2
#define ILI9341_RDID3 0xDC      ///< Read ID 3
#define ILI9341_RDID4 0xDD      ///< Read ID 4

#define ILI9341_GMCTRP1 0xE0    ///< Positive Gamma Correction
#define ILI9341_GMCTRN1 0xE1    ///< Negative Gamma Correction
// #define ILI9341_PWCTR6     0xFC

// Color definitions
#define ILI9341_BLACK 0x0000       ///<   0,   0,   0
#define ILI9341_NAVY 0x000F        ///<   0,   0, 123
#define ILI9341_DARKGREEN 0x03E0   ///<   0, 125,   0
#define ILI9341_DARKCYAN 0x03EF    ///<   0, 125, 123
#define ILI9341_MAROON 0x7800      ///< 123,   0,   0
#define ILI9341_PURPLE 0x780F      ///< 123,   0, 123
#define ILI9341_OLIVE 0x7BE0       ///< 123, 125,   0
#define ILI9341_LIGHTGREY 0xC618   ///< 198, 195, 198
#define ILI9341_DARKGREY 0x7BEF    ///< 123, 125, 123
#define ILI9341_BLUE 0x001F        ///<   0,   0, 255
#define ILI9341_GREEN 0x07E0       ///<   0, 255,   0
#define ILI9341_CYAN 0x07FF        ///<   0, 255, 255
#define ILI9341_RED 0xF800         ///< 255,   0,   0
#define ILI9341_MAGENTA 0xF81F     ///< 255,   0, 255
#define ILI9341_YELLOW 0xFFE0      ///< 255, 255,   0
#define ILI9341_WHITE 0xFFFF       ///< 255, 255, 255
#define ILI9341_ORANGE 0xFD20      ///< 255, 165,   0
#define ILI9341_GREENYELLOW 0xAFE5 ///< 173, 255,  41
#define ILI9341_PINK 0xFC18        ///< 255, 130, 198


#define ILI_TYPE_9341           0  // MUST match with enum class ILI9xxx_type_e in P095_data_struct.h !
#define ILI_TYPE_9342           1
#define ILI_TYPE_9342_2         12 // !! ONLY enabled on ESP32 for size reasons !!
#define ILI_TYPE_9342_3         13 // !! ONLY enabled on ESP32 for size reasons !!
#define ILI_TYPE_9481           2
#define ILI_TYPE_9481_CPT29     3
#define ILI_TYPE_9481_PVI35     4
#define ILI_TYPE_9481_AUO317    5
#define ILI_TYPE_9481_CMO35     6
#define ILI_TYPE_9481_RGB       7
#define ILI_TYPE_9481_CMI7      8
#define ILI_TYPE_9481_CMI8      9

/**************************************************************************/

/*!
   @brief Class to manage hardware interface with ILI9341 chipset (also seems to
   work with ILI9340)
 */

/**************************************************************************/

class Adafruit_ILI9341 : public Adafruit_SPITFT {
public:

  // Adafruit_ILI9341(int8_t _CS, int8_t _DC, int8_t _MOSI, int8_t _SCLK,
  //                  int8_t _RST = -1, int8_t _MISO = -1);
  Adafruit_ILI9341(int8_t   _CS,
                   int8_t   _DC,
                   int8_t   _RST   = -1,
                   uint8_t  _MODEL = ILI_TYPE_9341,
                   uint16_t w      = ILI9341_TFTWIDTH,
                   uint16_t h      = ILI9341_TFTHEIGHT); // Default to ILI9341, check ILI9xxx_type_e
  virtual ~Adafruit_ILI9341() {}  // Virtual destructor

#if !defined(ESP8266)

  // Adafruit_ILI9341(SPIClass *spiClass, int8_t dc, int8_t cs = -1,
  //                  int8_t rst = -1);
#endif // end !ESP8266
  // Adafruit_ILI9341(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 scrollTo(uint16_t y);
  void setScrollMargins(uint16_t top,
                        uint16_t bottom);

  // Transaction API not used by GFX
  void setAddrWindow(uint16_t x,
                     uint16_t y,
                     uint16_t w,
                     uint16_t h);

  uint8_t readcommand8(uint8_t reg,
                       uint8_t index = 0);

private:

  uint16_t _w;
  uint16_t _h;
  uint8_t _model;
};

#endif // _ADAFRUIT_ILI9341H_
