SegDriver_PCx85.h

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#ifndef SEGDRIVER_PCx85_H
#define SEGDRIVER_PCx85_H
 
#include <Wire.h>
#include <SegLCDLib.h>
 
class SegDriver_PCx85 : public SegLCDLib {
    #define MAX_HW_ADDRESS  0
    #define MAX_ADDRESS     0
 
    // Define commands
    #define CMD_LOAD_POINTER    0x00
    #define CMD_MODE            0x40
    #define CMD_DEVICE_SELECT   0x60
    #define CMD_BLINK           0x70
    #define CMD_BANK_SELECT     0x78
    #define CMD_LAST_COMMAND    0x80
 
    // Common hardware constants for PCF85176 displays
    protected:
        static constexpr uint8_t DEFAULT_PCF85176_I2C_ADDRESS = 0x38;  // 56 decimal
        static constexpr uint8_t DEFAULT_SUBADDRESS = 0x00;
 
    public:
        typedef enum {
            MODE_STATUS_BLANK = 0,   
            MODE_STATUS_ENABLED = 1  
        } ModeStatus;
 
        typedef enum {
            BLINK_FREQUENCY_OFF = 0, 
            BLINK_FREQUENCY_1 = 1,   
            BLINK_FREQUENCY_2 = 2,   
            BLINK_FREQUENCY_3 = 3    
        } BlinkFrequency;
 
        typedef enum {
            BLINK_MODE_NORMAL = 0,  
            BLINK_MODE_ALTRAM = 1   
        } BlinkMode;
 
        SegDriver_PCx85(TwoWire& i2c, uint8_t address, uint8_t subaddress);
        virtual void init() override;
 
        void bankSelect(uint8_t input, uint8_t output);
 
        void blink(BlinkFrequency blink = BLINK_FREQUENCY_OFF, BlinkMode mode = BLINK_MODE_NORMAL);
        void clear() override;
        void on() override;
        void off() override;
 
        // TODO: Implement calling commands
        void command(uint8_t command) override { };
 
        void flush(uint8_t startAddr, uint8_t length) override;
        using SegLCDLib::flush;  // Inherit base flush() without parameters
 
    protected:
        void _setMode(ModeStatus status, ModeDrive drive = MODE_DRIVE_14 , ModeBias bias = MODE_BIAS_13);
        void _writeRam(uint8_t data, uint8_t address = 0) override;
        void _writeRam(uint8_t *data, size_t length, uint8_t address = 0) override;
 
    private:
        TwoWire& _i2c;
        uint8_t _address;
        uint8_t _subaddress;
        ModeDrive _drive;
        ModeBias _bias;
 
        void _deviceSelect();
};
 
class SegDriver_PCF85176 : public SegDriver_PCx85 {
    // TODO: make this somehow better?
    #define MAX_HW_ADDRESS  39              
    #define MAX_ADDRESS     MAX_HW_ADDRESS  
 
    public:
        SegDriver_PCF85176(TwoWire& i2c, uint8_t address = DEFAULT_PCF85176_I2C_ADDRESS, uint8_t subaddress = DEFAULT_SUBADDRESS) : SegDriver_PCx85(i2c, address, subaddress) {}
};
 
class SegDriver_PCF8576 : public SegDriver_PCF85176 {
    public:
        using SegDriver_PCF85176::SegDriver_PCF85176; // inherit constructors
};
#endif