osd.c

BITEK LCD DRIVER IC OSD CODE

/* **********************************************************************

         Copyright (c) 2002-2006 Beyond Innovation Technology Co., Ltd

         All rights are reserved. Reproduction in whole or in parts is
    prohibited without the prior written consent of the copyright owner.
   ----------------------------------------------------------------------

    Module: OSD.C

    Purpose: Implementation of OSD module.

    Version: 0.01                                   11:01AM  2005/11/17

    Compiler: Keil 8051 C Compiler v8.01

    Reference:
    [1] BIT1611B Datasheet Version 1.0, 2005-11-10, Beyond Innovation Technology
    [2] MTV121 Super On-Screen-Display for LCD Monitor, Revision 5.0
        06/29/1999 Myson Technology

   ----------------------------------------------------------------------
    Modification:

    R0.01 09:48AM  2005/11/17 Jeffrey Chang
    Reason:
        1. Original.
    Solution:

   ********************************************************************** */

#define _OSD_C_

/* ------------------------------------
    Header Files
   ------------------------------------ */
#include "bitek.h"
#include "eeprom.h"
#include "intrins.h"
#include "led.h"
#include "osd.h"
#include "platform.h"
#include "timer.h"

/* ------------------------------------
    Macro Definitions
   ------------------------------------ */

/* ------------------------------------
    Type Definitions
   ------------------------------------ */

/* ------------------------------------
    Variables Definitions
   ------------------------------------ */
static UB8 CODE abProgressBarTV[] =         { OSD_00_DASH_0,    OSD_01_DASH_1,  OSD_02_DASH_2   };
static UB8 CODE abProgressBarMONITOR[] =    { OSD_10_BAR_0,     OSD_11_BAR_1,   OSD_12_BAR_2,
                                              OSD_13_BAR_3,     OSD_14_BAR_4,   OSD_15_BAR_5    };
static UB8 CODE abTrackBar[] =              { OSD_01_TRACK_1,   OSD_06_TRACK_2, OSD_07_TRACK_3  };


/* ------------------------------------
    Function Prototypes
   ------------------------------------ */


#pragma OPTIMIZE (6)
/* -------------------------------------------------------------------
    Name: OSD_DisplayAddress - (OSD_BIT1611B)
    Purpose: To calculate OSD Display Address.
    Passed:
        UB8     bWindow = OSD Window Identifier.
        UB8     bRow    = Position in rows
        UB8     bCol    = Position in columns

    Returns: OSD Display Address.
    Notes:
   ------------------------------------------------------------------- */
UW16 OSD_DisplayAddress (
UB8     bWindow,
UB8     bRow,
UB8     bCol
)
{
    switch (bWindow)
    {
        case OSD_WINDOW1:
            return(VP_0500_057F_DISPLAY_CODE + OSD_WINDOW1_BASE +
                   bRow * OSD_WINDOW1_WIDTH + bCol                  );
            break;

        case OSD_WINDOW2:
            return(VP_0500_057F_DISPLAY_CODE + OSD_WINDOW2_BASE +
                   bRow * OSD_WINDOW2_WIDTH + bCol                  );
            break;

        case OSD_WINDOW3:
        default:
            return(VP_0500_057F_DISPLAY_CODE + OSD_WINDOW3_BASE +
                   bRow * OSD_WINDOW3_WIDTH + bCol                  );
            break;
    }
} /* OSD_DisplayAddress */
#pragma OPTIMIZE (9)


#if (OSD_DSP_PROGRESSBAR)
/* -------------------------------------------------------------------
    Name: OSD_DspProgressBar - (OSD_BIT1611B)
    Purpose: To display a progress bar at specified position in OSD window.
    Passed:
        UB8     bWindow     = OSD Window Identifier.
        UB8     bCol,       = Progress bar horizontal position in columns.
        UB8     bRow,       = Progress bar vertical position in rows.
        UW16    wMin,       = Progress bar minimal value.
        UW16    wMax,       = Progress bar maximal value.
        UW16    wValue      = Progress bar indicative value.
        UB8     bWidth,     = Progress bar width
        UB8     bStyle      = Progress bar Style
    Returns: None.
    Notes:
   ------------------------------------------------------------------- */
void OSD_DspProgressBar (
UB8     bWindow,
UB8     bCol,       // Progress bar horizontal position in columns
UB8     bRow,       // Progress bar vertical position in rows
UW16    wMin,       // Progress bar minimal value
UW16    wMax,       // Progress bar maximal value
UW16    wValue,     // Progress bar indicative value
UB8     bWidth,     // Progress bar width
UB8     bStyle      // Progress bar style
)
{
    UB8     bFull;
    UB8     bUnit;
    UW16    wAddr;


    wAddr = OSD_DisplayAddress(bWindow, bRow, bCol);

    // Note: MONITOR Style contains LEFT and RIGHT !
    if (bStyle != OSD_STYLE_TV1)
        bWidth -= 2;

    switch (bStyle)
    {
        case OSD_STYLE_TV1:
        default:
            // Dash Type

            // Rounding
            bUnit = (UW32)(wValue - wMin) * OSD_DASH_TOTAL * bWidth /
                    (wMax - wMin);

            bFull = bUnit / OSD_DASH_TOTAL;

            // Fill FULL Dash Bar !
            BITEK_TxRepeat(OSD_MAD, wAddr, bFull, OSD_03_DASH_FULL);

            if (bFull != bWidth)
            {
                // Fill Dash 0 Bar !
                BITEK_TxRepeat(OSD_MAD, wAddr + bFull, bWidth - bFull, OSD_00_DASH_0);

                // Show Dash Bar !
                BITEK_TxByte(OSD_MAD, wAddr + bFull, abProgressBarTV[ bUnit % OSD_DASH_TOTAL ]);
            }
            break;

        case OSD_STYLE_MONITOR1:
            // Bar Type

            // Rounding
            bUnit = (UW32)(wValue - wMin) * OSD_BAR_TOTAL * bWidth /
                   (wMax - wMin);

            bFull = bUnit / OSD_BAR_TOTAL;


            // LEFT/RIGHT BAR !
            BITEK_TxByte(OSD_MAD, wAddr,          OSD_5B_BAR_LEFT);
            BITEK_TxByte(OSD_MAD, wAddr+bWidth+1, OSD_5D_BAR_RIGHT);

            // Fill FULL BAR !
            wAddr++;
            BITEK_TxRepeat(OSD_MAD, wAddr, bFull, OSD_16_BAR_FULL);

            if (bFull != bWidth)
            {
                // Fill Dash 0 Bar !
                BITEK_TxRepeat(OSD_MAD, wAddr + bFull, bWidth - bFull, OSD_10_BAR_0);

                // Show Dash Bar !
                BITEK_TxByte(OSD_MAD, wAddr + bFull, abProgressBarMONITOR[ bUnit % OSD_BAR_TOTAL ]);
            }
            break;
    }
} /* OSD_DspProgressBar */
#endif


#if (OSD_DSP_TRACKBAR)
/* -------------------------------------------------------------------
    Name: OSD_DspTrackBar - (OSD_BIT1611B)
    Purpose: To display a track bar at specified position in OSD window.
    Passed:
        UB8     bWindow     = OSD Window Identifier.
        UB8     bCol,       = Track bar horizontal position in columns
        UB8     bRow,       = Track bar vertical position in rows
        UW16    wMin,       = Track bar minimal value
        UW16    wMax,       = Track bar maximal value
        UW16    wValue      = Track bar indicative value
        UB8     bWidth      = Track bar width
    Returns: None.
    Notes:
   ------------------------------------------------------------------- */
void OSD_DspTrackBar (
UB8     bWindow,
UB8     bCol,       // Track bar horizontal position in columns
UB8     bRow,       // Track bar vertical position in rows
UW16    wMin,       // Track bar minimal value
UW16    wMax,       // Track bar maximal value
UW16    wValue,     // Track bar indicative value
UB8     bWidth      // Track bar width
)
{
    UB8     bUnit;
    UW16    wAddr;


    wAddr = OSD_DisplayAddress(bWindow, bRow, bCol);

    // Rounding
    bUnit = ((UW32)(wValue - wMin) * OSD_TRACK_TOTAL * bWidth) /
            (wMax - wMin);

    if (bUnit == OSD_TRACK_TOTAL * bWidth)
        bUnit--;

    // Fill Track 0 Bar !
    BITEK_TxRepeat(OSD_MAD, wAddr, bWidth, OSD_00_TRACK_0);

    // Show Track Bar !
    BITEK_TxByte(OSD_MAD, wAddr + bUnit / OSD_TRACK_TOTAL, abTrackBar[ bUnit % OSD_TRACK_TOTAL ]);
} /* OSD_DspTrackBar */
#endif


/* -------------------------------------------------------------------
    Name: OSD_EnableWindow - (OSD_BIT1611B)
    Purpose: To enable/disable OSD Windows.
    Passed:
        UB8     bWindow = OSD Window Identifier.
        BOOL    fOn = Enable (TRUE) or Disable (FALSE).
    Returns: None.
    Notes: [1]118
   ------------------------------------------------------------------- */
void OSD_EnableWindow (
UB8     bWindow,
BOOL    fOn
)
{
    UB8 bData;


    if (bWindow & OSD_WINDOW1)
    {
        ////////////////////////////////////////////////////////
        // [JC010] OSD Image Retention issue fixed by JC 09:15AM  2006/04/25
        #ifdef NOT_JUNK
        bData = BITEK_RxByte(OSD_MAD, VP_143_OSD1_ATTR4);

        if ( fOn )
            bData |= VP_MASK_OSD1_EN;
        else
            bData &= (~VP_MASK_OSD1_EN);

        BITEK_TxByte(OSD_MAD, VP_143_OSD1_ATTR4, bData);
        #endif

        bData = BITEK_RxByte(OSD_MAD, VP_13A_OSD1_POSITION_MSB);

        if ( fOn )
            bData &= (~VP_MASK_H_POSITION_OFF);
        else
            bData |= VP_MASK_H_POSITION_OFF;

        BITEK_TxByte(OSD_MAD, VP_13A_OSD1_POSITION_MSB, bData);
        ////////////////////////////////////////////////////////
    }

    if (bWindow & OSD_WINDOW2)
    {
        bData = BITEK_RxByte(OSD_MAD, VP_151_OSD2_ATTR4);

        if ( fOn )
            bData |= VP_MASK_OSD2_EN;
        else
            bData &= (~VP_MASK_OSD2_EN);

        BITEK_TxByte(OSD_MAD, VP_151_OSD2_ATTR4, bData);
    }

    if (bWindow & OSD_WINDOW3)
    {
        bData = BITEK_RxByte(OSD_MAD, VP_15F_OSD3_ATTR4);

        if ( fOn )
            bData |= VP_MASK_OSD3_EN;
        else
            bData &= (~VP_MASK_OSD3_EN);

        BITEK_TxByte(OSD_MAD, VP_15F_OSD3_ATTR4, bData);
    }
} /* OSD_EnableWindow */



/* -------------------------------------------------------------------
    Name: OSD_FillCharAttr - (OSD_BIT1611B)
    Purpose:
        To fill OSD display RAM with the same character attribute.

    Passed:
        bOffset = The character attribute start location.
        bCnt = The number of filled characters (1..255).
        bCharAttr =  The same character attribute.
    Returns: None.
    Notes:
   ------------------------------------------------------------------- */
void OSD_FillCharAttr (
UB8     bOffset,
UB8     bCnt,           // 1..255
UB8     bCharAttr       // Char Attribute
)
{
    BITEK_TxRepeat(OSD_MAD, VP_0580_05FF_DISPLAY_ATTR + bOffset, bCnt, bCharAttr);
} /* OSD_FillCharAttr */


/* -------------------------------------------------------------------
    Name: OSD_FillCharCode - (OSD_BIT1611B)
    Purpose:
        To fill OSD display RAM with the same character code.

    Passed:
        bOffset = The character code start location.
        bCnt = The number of filled characters (1..255).
        bCharCode = The same character code.
    Returns: None.
    Notes:
   ------------------------------------------------------------------- */
void OSD_FillCharCode (
UB8     bOffset,
UB8     bCnt,           // 1..255
UB8     bCharCode       // Character Code
)
{
    BITEK_TxRepeat(OSD_MAD, VP_0500_057F_DISPLAY_CODE + bOffset, bCnt, bCharCode);
} /* OSD_FillCharCode */


/* -------------------------------------------------------------------
    Name: OSD_FillCharCodeAttr - (OSD_BIT1611B)
    Purpose:
        To fill OSD display RAM with the same character code and attribute.

    Passed:
        bOffset = The character start location.
        bCnt = The number of filled characters (1..255).
        bCharCode = The same character code.
        bCharAttr = The same character attribute.
                    5 4 3 2 1 0
                    | | | |_|_|_ Foregound Attribute Index (0..7)
                    |_|_|_______ Backgound Attribute Index (0..7)
    Returns: None.
    Notes:
   ------------------------------------------------------------------- */
void OSD_FillCharCodeAttr (
UB8     bOffset,
UB8     bCnt,           // 1..255
UB8     bCharCode,      // Char Code