GC9A01_TFT_LCD_RDL.hpp

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#pragma once
 
// Section Libraries
#include <cstdint>
#include <cstdbool>
#include <cstring>
#include <lgpio.h>
#include "color16_graphics_RDL.hpp"
 
class GC9A01_TFT : public color16_graphics
{
 
public:
 
    GC9A01_TFT();
    ~GC9A01_TFT(){};
 
    //  Enums
    enum class PowerState_e : uint8_t{
        NormalIdleOff,      
        NormalIdleOn,       
        PartialIdleOff,     
        PartialIdleOn,      
        SleepNormalIdleOff, 
        SleepNormalIdleOn,  
        SleepPartialIdleOff,
        SleepPartialIdleOn  
    };
 
    display_rotate_e displayRotate = Degrees_0; 
    // Functions
    // From graphics virtual
    virtual void setAddrWindow(uint16_t, uint16_t, uint16_t, uint16_t) override;
    //Setup related
    void TFTSetupGPIO(int8_t, int8_t, int8_t, int8_t, int8_t); //SW SPI
    void TFTSetupGPIO(int8_t, int8_t); // HW SPI
    void TFTInitScreenSize(uint16_t w, uint16_t h);
    rdlib::Return_Codes_e TFTInitSPI(uint16_t CommDelay, int gpioDev ); // SW SPI
    rdlib::Return_Codes_e TFTInitSPI(int device, int channel, int speed, int flags, int gpioDev); // HW SPI
    rdlib::Return_Codes_e  TFTPowerDown(void);
    uint16_t HighFreqDelayGet(void);
    void HighFreqDelaySet(uint16_t);
    rdlib::Return_Codes_e TFTResetPin(void);
 
    // Screen related
    void TFTsetRotation(display_rotate_e r);
    void TFTchangeInvertMode(bool m);
    void TFTsetPowerMode(PowerState_e m);
    void TFTenableDisplay(bool m);
    void TFTsetBrightness(uint8_t level);
    void TFTsetScrollArea(uint16_t topFixed, uint16_t scrollArea, uint16_t bottomFixed);
    void TFTsetScrollStart(uint16_t vsp);
    void TFTScrollModeLeave(void);
 
private:
 
    rdlib::Return_Codes_e TFTDataCommandPin(void);
    rdlib::Return_Codes_e TFTClock_Data_ChipSelect_Pins(void);
    void TFTSetupResetPin(int8_t rst);
    rdlib::Return_Codes_e TFTGC9A01Initialize(void);
    void cmdInitSequence(void);
 
    // Screen
        // Display
    PowerState_e _currentPowerState = PowerState_e::NormalIdleOff; 
    bool _displayOn = false; 
    const uint16_t _sleepDelay = 120; 
    // Screen
    uint8_t _colstart = 0;          
    uint8_t _rowstart = 0;          
    uint16_t _widthStartTFT = 240;  
    uint16_t _heightStartTFT = 240; 
    // SPI related
    int _spiDev = 0;       
    int _spiChan = 0;     
    int _spiBaud = 50000; 
    int _spiFlags = 0;    
    bool _resetPinOn = true; 
    // GC9A01 registers + Commands
    struct MADCTL_FLAGS_t
    {
        static constexpr uint8_t MY = 0x80;  
        static constexpr uint8_t MX = 0x40;  
        static constexpr uint8_t MV = 0x20;  
        static constexpr uint8_t ML = 0x10;  
        static constexpr uint8_t RGB = 0x00; 
        static constexpr uint8_t BGR = 0x08; 
        static constexpr uint8_t MH = 0x04;  
    };
 
    static constexpr uint8_t GC9A01_SWRESET = 0x01; 
    static constexpr uint8_t GC9A01_RDDID = 0x04;   
    static constexpr uint8_t GC9A01_RDDST = 0x09;   
    static constexpr uint8_t GC9A01_SLPIN = 0x10;   
    static constexpr uint8_t GC9A01_SLPOUT = 0x11;  
    static constexpr uint8_t GC9A01_PTLON = 0x12;   
    static constexpr uint8_t GC9A01_NORON = 0x13;   
    static constexpr uint8_t GC9A01_DISPOFF = 0x28; 
    static constexpr uint8_t GC9A01_DISPON = 0x29;  
    static constexpr uint8_t GC9A01_IDLEOFF = 0x38; 
    static constexpr uint8_t GC9A01_IDLEON = 0x39;  
    static constexpr uint8_t GC9A01_INVOFF = 0x20;    
    static constexpr uint8_t GC9A01_INVON = 0x21;     
    static constexpr uint8_t GC9A01_CASET = 0x2A;     
    static constexpr uint8_t GC9A01_RASET = 0x2B;     
    static constexpr uint8_t GC9A01_RAMWR = 0x2C;     
    static constexpr uint8_t GC9A01_PTLAR = 0x30;     
    static constexpr uint8_t GC9A01_VSCRDEF = 0x33;   
    static constexpr uint8_t GC9A01_TEOFF = 0x34;     
    static constexpr uint8_t GC9A01_TEON = 0x35;      
    static constexpr uint8_t GC9A01_MADCTL = 0x36;    
    static constexpr uint8_t GC9A01_VSCRSADD = 0x37;  
    static constexpr uint8_t GC9A01_COLMOD = 0x3A;    
    static constexpr uint8_t GC9A01_CONTINUE = 0x3C;  
    static constexpr uint8_t GC9A01_TEARSET = 0x44;   
    static constexpr uint8_t GC9A01_GETLINE = 0x45;   
    static constexpr uint8_t GC9A01_SETBRIGHT = 0x51; 
    static constexpr uint8_t GC9A01_SETCTRL = 0x53;   
    static constexpr uint8_t GC9A01_TEWC = 0xBA;             
    static constexpr uint8_t GC9A01_BLANK_PORCH_CTRL = 0xB5; 
    static constexpr uint8_t GC9A01_FUNCTION_CTRL = 0xB6;    
    static constexpr uint8_t GC9A01_POWER1 = 0xC1; 
    static constexpr uint8_t GC9A01_POWER2 = 0xC3; 
    static constexpr uint8_t GC9A01_POWER3 = 0xC4; 
    static constexpr uint8_t GC9A01_POWER4 = 0xC9; 
    static constexpr uint8_t GC9A01_POWER7 = 0xA7; 
    static constexpr uint8_t GC9A01_RDID1 = 0xDA; 
    static constexpr uint8_t GC9A01_RDID2 = 0xDB; 
    static constexpr uint8_t GC9A01_RDID3 = 0xDC; 
    static constexpr uint8_t GC9A01_FRAMERATE = 0xE8; 
    static constexpr uint8_t GC9A01_SPI2DATA = 0xE9;  
    static constexpr uint8_t GC9A01_INREGEN2 = 0xEF;  
    static constexpr uint8_t GC9A01_GAMMA1 = 0xF0;   
    static constexpr uint8_t GC9A01_GAMMA2 = 0xF1;   
    static constexpr uint8_t GC9A01_GAMMA3 = 0xF2;   
    static constexpr uint8_t GC9A01_GAMMA4 = 0xF3;   
    static constexpr uint8_t GC9A01_IFACE = 0xF6;    
    static constexpr uint8_t GC9A01_INREGEN1 = 0xFE; 
}; //end of GC9A01_TFT  class
 
// ********************** EOF *********************