/*

 * GraphLCD driver library

 *

 * picctl.c  -  PIC controlled LCD driver class

 *

 * This file is released under the GNU General Public License. Refer

 * to the COPYING file distributed with this package.

 *

 * Codebase by Andreas Regel <andreas.regel AT powarman.de>

 * (c) 2007 Carsten Presser

 */

#ifndef _GLCDDRIVERS_PICCTL_H_

#define _GLCDDRIVERS_PICCTL_H_

#include "driver.h"

namespace GLCD

{

class cDriverConfig;

class cSerialPort;

class cDriverPICCtl : public cDriver

{

private:

    cSerialPort * port;

    unsigned char ** newLCD; // wanted state

    unsigned char ** oldLCD; // current state

    cDriverConfig * config;

    cDriverConfig * oldConfig;

    int WaitForAck(void);

    void CmdDispClearScreen(void);

    void CmdSetMode(uint8_t mode);

    void CmdDispSetManaged(void);

    void CmdDispSetUnManaged(void);

    void CmdDispSetBrightness(uint8_t percent);

    void CmdDispSetColData(uint8_t yoffset, uint8_t xoffset, uint8_t length, uint8_t * data);

    int  CheckSetup();

    void DecodeCmd(uint8_t * cmd, uint8_t len);

    void InputHandler();

    uint8_t buf[255];

    uint8_t buf_pos;

    uint8_t buf_cmd_start;

    bool    buf_flag_escape;

    int     keys[255];

    uint8_t keys_pos;

    uint8_t keys_pos_;

    int  refreshCounter;

    bool ack_flag;

public:

    virtual int Init();

    virtual int DeInit();

    virtual void Clear();

    virtual void Set8Pixels(int x, int y, unsigned char data);

    virtual void Refresh(bool refreshAll = false);

    virtual void SetBrightness(unsigned int percent);

    virtual int  GetKey();

    virtual bool HasKeys();

    cDriverPICCtl(cDriverConfig * config);	// Konstruktor

    virtual ~cDriverPICCtl();			// Destruktor

};

} // end of namespace

#endif