erm19264.hpp

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#pragma once
 
// ** INCLUDES **
#include "display_graphics.hpp"
#include "hardware/spi.h"
#include "pico/stdlib.h"
 
// class
class ERM19264 : public displaylib_graphics
{
 
public:
    ERM19264(int16_t width, int16_t height);
    ~ERM19264(){};
    // Rotate LCD commands
    enum LCD_rotate_cmd_e : uint8_t {
        ROTATION_FLIP_THREE = 0x00,
        ROTATION_FLIP_ONE =   0x02,
        ROTATION_NORMAL =     0x04,
        ROTATION_FLIP_TWO =   0x06
    };
 
    virtual void drawPixel(int16_t x, int16_t y, uint8_t colour) override;
 
    DisplayRet::Ret_Codes_e LCDupdate(void);
    DisplayRet::Ret_Codes_e LCDSetBufferPtr(uint8_t width, uint8_t height, std::span<uint8_t> buffer);
    DisplayRet::Ret_Codes_e LCDclearBuffer(void);
    void LCDBuffer(int16_t x, int16_t y, uint8_t w, uint8_t h, std::span<uint8_t> data);
    void LCDBitmap(int16_t x, int16_t y, uint8_t w, uint8_t h, std::span<const uint8_t> data);
 
    void LCDSPISetup(spi_inst_t *spi, uint32_t spiBaudRate, int8_t cd, int8_t rst, int8_t cs, int8_t sclk, int8_t din);
    void LCDinit(uint8_t VbiasPot = UC1609_DEFAULT_GN_PM, uint8_t AddressSet = UC1609_ADDRESS_SET);
    void LCDEnable(uint8_t on);
    void LCDFillScreen(uint8_t pixel, uint8_t mircodelay);
    void LCDFillPage(uint8_t pixels);
    void LCDsetRotateCmd(LCD_rotate_cmd_e  rotatevalue);
    void LCDInvertDisplay(uint8_t on);
    void LCDAllpixelsOn(uint8_t bits);
    void LCDGotoXY(uint8_t column , uint8_t page);
    void LCDscroll(uint8_t bits);
    void LCDReset(void);
    void LCDPowerDown(void);
    void LCDSPIoff(void);
 
private:
    void SendData(uint8_t data);
    void SendCommand(uint8_t command, uint8_t value);
 
    // GPIO & SPI
    int8_t _display_CS;       
    int8_t _display_CD;       
    int8_t _display_RST;      
    int8_t _display_SCLK;     
    int8_t _display_DIN;      
    spi_inst_t *_spiInterface; 
    // Screen related
    int16_t _LCD_WIDTH = 192;                 
    int16_t _LCD_HEIGHT = 64;                 
    int8_t _LCD_PAGE_NUM = (_LCD_HEIGHT / 8); 
    std::span<uint8_t> _LCDbuffer;           
    uint8_t _VbiasPOT;    
    uint8_t _AddressCtrl; 
    // UC1609 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; 
    // Delays
    static constexpr uint8_t UC1609_RESET_DELAY =  3;  
    static constexpr uint8_t UC1609_RESET_DELAY2 = 0; 
    static constexpr uint8_t UC1609_INIT_DELAY = 100; 
    static constexpr uint8_t UC1609_INIT_DELAY2 =  3;  
};