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#include "act_hd44780.h"

uint8_t Command = 0;

#if act_hd44780_USE_AUTO_BL == 1

uint8_t autoMode = CAN_MODULE_ENUM_HD44789_LCD_BACKLIGHT_AUTOLIGHT_ON;

#endif

void act_hd44780_Init(void)

{

    ///FIXME: What is this, this needs to be more clear by far....

    // Contrast (brightness on an oled display)

    TCCR0A |= (1<<COM0B1)|(1<<WGM01)|(1<<WGM00);

    TCCR0B |= (1<<CS00);

    OCR0B = act_hd44780_INITIAL_CONTRAST;

    DDRD |= (1<<PD5);

#if (act_hd44780_TYPE==0)

    // Backlight

    TCCR0A |= (1<<COM0A1)|(1<<WGM01)|(1<<WGM00);

    TCCR0B |= (1<<CS00);

    OCR0A = act_hd44780_INITIAL_BACKLIGHT;

    DDRD |= (1<<PD6);

#endif

    lcd_init(LCD_DISP_ON);

    lcd_clrscr();

    lcd_puts("HomeAutomation\n");

    lcd_puts("HD44780-module\n");

}

void act_hd44780_Process(void)

{

#if act_hd44780_USE_AUTO_BL == 1

  if (autoMode == CAN_MODULE_ENUM_HD44789_LCD_BACKLIGHT_AUTOLIGHT_ON) {

    #if (act_hd44780_TYPE==0)

      if ( OCR0A == 0) {

    #else

      if ( OCR0B == 0) {

    #endif

      } else {

      uint16_t Voltage = (0x3ff & ADC_Get(act_hd44780_LIGHTSENSOR_AD));

    #if (act_hd44780_TYPE==0)

    OCR0A = Voltage/4;

    if (OCR0A == 0) {

      OCR0A = 1;

    }

    #else

    OCR0B = Voltage/4;

    if (OCR0B == 0) {

      OCR0B = 1;

    }

    #endif

      }

  }

#endif

#if (act_hd44780_TYPE==0)

    if (OCR0A==0 && (TCCR0A & ((1<<COM0A1)|(1<<WGM01)|(1<<WGM00))) == ((1<<COM0A1)|(1<<WGM01)|(1<<WGM00)))

    {

        TCCR0A &= ~((1<<COM0A1)|(1<<WGM01)|(1<<WGM00));

    }

    if (OCR0A!=0 && (TCCR0A & ((1<<COM0A1)|(1<<WGM01)|(1<<WGM00))) != ((1<<COM0A1)|(1<<WGM01)|(1<<WGM00)))

    {

        TCCR0A |= (1<<COM0A1)|(1<<WGM01)|(1<<WGM00);

    }

#endif

}

void act_hd44780_HandleMessage(StdCan_Msg_t *rxMsg)

{

    StdCan_Msg_t txMsg;

    uint8_t n = 0;

    if (    StdCan_Ret_class(rxMsg->Header) == CAN_MODULE_CLASS_ACT &&

        StdCan_Ret_direction(rxMsg->Header) == DIRECTIONFLAG_TO_OWNER &&

        rxMsg->Header.ModuleType == CAN_MODULE_TYPE_ACT_HD44789 &&

        rxMsg->Header.ModuleId == act_hd44780_ID)

    {

        switch (rxMsg->Header.Command)

        {

        case CAN_MODULE_CMD_HD44789_LCD_CLEAR:

        lcd_clrscr();

        break;

        case CAN_MODULE_CMD_HD44789_LCD_CURSOR:

        lcd_gotoxy(rxMsg->Data[0], rxMsg->Data[1]);

        break;

        case CAN_MODULE_CMD_HD44789_LCD_TEXTAT:

        lcd_gotoxy(rxMsg->Data[0], rxMsg->Data[1]);

        for (n = 2; n < rxMsg->Length; n++)

        {

            lcd_putc((char)rxMsg->Data[n]);

        }

        break;

/*

        case CAN_MODULE_CMD_HD44789_LCD_CLEARROW:

        lcd_gotoxy(0, rxMsg->Data[0]);

        for (n = 0; n < act_hd44780_WIDTH; n++)

        {

            lcd_putc(' ');

        }

        break;

*/

        case CAN_MODULE_CMD_HD44789_LCD_TEXT:

        for (n = 0; n < rxMsg->Length; n++)

        {

            lcd_putc((char)rxMsg->Data[n]);

        }

        break;

        case CAN_MODULE_CMD_HD44789_LCD_SIZE:

        StdCan_Set_class(txMsg.Header, CAN_MODULE_CLASS_ACT);

        StdCan_Set_direction(txMsg.Header, DIRECTIONFLAG_FROM_OWNER);

        txMsg.Header.ModuleType = CAN_MODULE_TYPE_ACT_HD44789;

        txMsg.Header.ModuleId = act_hd44780_ID;

        txMsg.Header.Command = CAN_MODULE_CMD_HD44789_LCD_SIZE;

        txMsg.Length = 2;

        txMsg.Data[0] = act_hd44780_WIDTH;

        txMsg.Data[1] = act_hd44780_HEIGHT;

        while (StdCan_Put(&txMsg) != StdCan_Ret_OK);

        break;

        case CAN_MODULE_CMD_HD44789_LCD_BACKLIGHT:

        if (rxMsg->Length > 0) {

#if (act_hd44780_TYPE==0)

            OCR0A = rxMsg->Data[0];

#else

            OCR0B = rxMsg->Data[0];

#endif

#if act_hd44780_USE_AUTO_BL == 1

            if (rxMsg->Length == 2) {

                autoMode = rxMsg->Data[0];

            }

#endif

        }

        StdCan_Msg_t txMsg;

        StdCan_Set_class(txMsg.Header, CAN_MODULE_CLASS_ACT);

        StdCan_Set_direction(txMsg.Header, DIRECTIONFLAG_FROM_OWNER);

        txMsg.Header.ModuleType = CAN_MODULE_TYPE_ACT_HD44789;

        txMsg.Header.ModuleId = act_hd44780_ID;

        txMsg.Header.Command = CAN_MODULE_CMD_HD44789_LCD_BACKLIGHT;

        txMsg.Length = 2;

#if (act_hd44780_TYPE==0)

            txMsg.Data[0] = OCR0A;

#else

            txMsg.Data[0] = OCR0B;

#endif

#if act_hd44780_USE_AUTO_BL == 1

        txMsg.Data[1] = autoMode;

#else

        txMsg.Data[1] = 0;

#endif

        while (StdCan_Put(&txMsg) != StdCan_Ret_OK);

        break;

        }

    }

}

void act_hd44780_List(uint8_t ModuleSequenceNumber)

{

    StdCan_Msg_t txMsg;

    StdCan_Set_class(txMsg.Header, CAN_MODULE_CLASS_ACT);

    StdCan_Set_direction(txMsg.Header, DIRECTIONFLAG_FROM_OWNER);

    txMsg.Header.ModuleType = CAN_MODULE_TYPE_ACT_HD44789;

    txMsg.Header.ModuleId = act_hd44780_ID;

    txMsg.Header.Command = CAN_MODULE_CMD_GLOBAL_LIST;

    txMsg.Length = 6;

    uint32_t HwId=BIOS_GetHwId();

    txMsg.Data[0] = HwId&0xff;

    txMsg.Data[1] = (HwId>>8)&0xff;

    txMsg.Data[2] = (HwId>>16)&0xff;

    txMsg.Data[3] = (HwId>>24)&0xff;

    txMsg.Data[4] = NUMBER_OF_MODULES;

    txMsg.Data[5] = ModuleSequenceNumber;

    while (StdCan_Put(&txMsg) != StdCan_Ret_OK);

}