ERM19264_UC1609_LCD_RDL.hpp

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#pragma once
 
// ** INCLUDES **
#include <lgpio.h>
#include <cstdio>
#include <cstdint>
#include <cstdbool>
#include "bicolor_graphics_RDL.hpp"
 
 
class ERM19264_UC1609 : public bicolor_graphics {
public:
     // Contructor 1 Software SPI with explicit SCLK and SDIN
    ERM19264_UC1609(int16_t lcdwidth, int16_t lcdheight , int8_t rst, int8_t cd, int8_t cs,  int8_t sclk, int8_t din);
    // Constructor 2 Hardware SPI
    ERM19264_UC1609(int16_t lcdwidth, int16_t lcdheight , int8_t rst, int8_t cd);
 
    ~ERM19264_UC1609(){};
 
    enum LCD_rotate_command_e : uint8_t{
        UC1609_ROTATION_FLIP_TWO   = 0x06, 
        UC1609_ROTATION_NORMAL     = 0x04, 
        UC1609_ROTATION_FLIP_ONE   = 0x02, 
        UC1609_ROTATION_FLIP_THREE = 0x00  
    };
 
    virtual void drawPixel(int16_t x, int16_t y, uint8_t colour) override;
 
    rdlib::Return_Codes_e LCDupdate(void);
    rdlib::Return_Codes_e LCDclearBuffer(void);
    void LCDBuffer(int16_t x, int16_t y, uint8_t w, uint8_t h, std::span<uint8_t> data);
    rdlib::Return_Codes_e LCDSetBufferPtr(uint8_t width, uint8_t height , std::span<uint8_t> data);
    void LCDBitmap(int16_t x, int16_t y, uint8_t w, uint8_t h, const std::span<const uint8_t> data);
 
    rdlib::Return_Codes_e LCDbegin(uint8_t AddressSet, uint8_t VbiasPot, int device, int channel, int speed, int flags, int gpioDev ); // HW SPI
    rdlib::Return_Codes_e LCDbegin(uint8_t AddressSet, uint8_t VbiasPot, int gpioDev ); // SW SPI
    void LCDinit(void);
    void LCDEnable(uint8_t on);
    void LCDFillScreen(uint8_t pixel);
    void LCDFillPage(uint8_t page_num, uint8_t pixels);
    rdlib::Return_Codes_e LCDrotate(LCD_rotate_command_e rotatevalue);
    void LCDinvert(uint8_t on);
    void LCDallpixelsOn(uint8_t bits);
    void LCDscroll(uint8_t bits);
    void LCDReset(void);
    void LCDPowerDown(void);
    rdlib::Return_Codes_e LCDSPIoff(void);
    bool LCDIssleeping(void);
 
    uint16_t LCD_HighFreqDelayGet(void);
    void LCD_HighFreqDelaySet(uint16_t);
 
  private:
 
    void sendData(uint8_t data);
    void sendCommand(uint8_t command, uint8_t value);
    int8_t GetCommMode(void);
    void SoftwareSPIShiftOut(uint8_t val);
 
    // GPIO related 
    int8_t _Display_CS;   
    int8_t _Display_DC;   
    int8_t _Display_RST;  
    int8_t _Display_SCLK; 
    int8_t _Display_SDATA;  
    int _DeviceNumGpioChip = 0; 
    int _GpioHandle = 0; 
    // Display 
    int16_t _LCD_WIDTH = 192;                 
    int16_t _LCD_HEIGHT = 64;                 
    int8_t _LCD_PAGE_NUM = (_LCD_HEIGHT/8); 
    std::span<uint8_t> _LCDbufferScreen ; 
    bool _sleep = true;   
    uint8_t _VbiasPOT= 0x49;    
    uint8_t _AddressCtrl= 0x02; 
    // SPI related 
    int _spiHandle = 0; 
    int _spiDev = 0; 
    int _spiChan = 0; 
    int _spiBaud = 50000;   
    int _spiFlags = 0; 
    int8_t _LCD_mode = 2; 
    uint16_t  _LCD_HighFreqDelay = 0; 
    struct UC1609_Delays_t 
    {
        static constexpr uint16_t INIT_DELAY     = 100;   
        static constexpr uint16_t INIT_DELAY2   =   3;   
        static constexpr uint16_t RESET_DELAY   =   3;   
        static constexpr uint16_t RESET_DELAY2  =   0;   
    };
 
    // UC1909 Write registers
    static constexpr uint8_t  UC1609_SYSTEM_RESET  = 0xE2 ; 
    static constexpr uint8_t  UC1609_POWER_CONTROL  = 0x28 ; 
    static constexpr uint8_t  UC1609_PC_SET  = 0x06 ; 
    static constexpr uint8_t  UC1609_ADDRESS_CONTROL  = 0x88 ; 
    static constexpr uint8_t  UC1609_ADDRESS_SET  = 0x02 ; 
    static constexpr uint8_t  UC1609_SET_PAGEADD  = 0xB0 ; 
    static constexpr uint8_t  UC1609_SET_COLADD_LSB  = 0x00 ; 
    static constexpr uint8_t  UC1609_SET_COLADD_MSB  = 0x10 ; 
    static constexpr uint8_t  UC1609_TEMP_COMP_REG  = 0x27 ; 
    static constexpr uint8_t  UC1609_TEMP_COMP_SET  = 0x00 ; 
    static constexpr uint8_t  UC1609_FRAMERATE_REG  = 0xA0 ; 
    static constexpr uint8_t  UC1609_FRAMERATE_SET  = 0x01  ; 
    static constexpr uint8_t  UC1609_BIAS_RATIO  = 0xE8 ; 
    static constexpr uint8_t  UC1609_BIAS_RATIO_SET  = 0x03 ; 
    static constexpr uint8_t  UC1609_GN_PM  = 0x81 ; 
    static constexpr uint8_t  UC1609_DEFAULT_GN_PM  = 0x49 ; 
    static constexpr uint8_t  UC1609_LCD_CONTROL  = 0xC0 ; 
    static constexpr uint8_t  UC1609_DISPLAY_ON  = 0xAE ; 
    static constexpr uint8_t  UC1609_ALL_PIXEL_ON  = 0xA4 ; 
    static constexpr uint8_t  UC1609_INVERSE_DISPLAY  = 0xA6 ; 
    static constexpr uint8_t  UC1609_SCROLL  = 0x40 ; 
};