vd_powerhandler.cpp

X-scale 27x 平台

//
// Copyright (c) Chrontel Inc.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Chrontel end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
/*++
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.

Module Name:
   vd_Powerhandler.cpp
Abstract:

Functions:

Notes:

Revision:
   12/20/02, Roger Yu, Create the file

--*/

#include	"precomp.h"

#include	"XSLGPE.h"

//#ifdef _X86_  // for X86 Emulator

//#include <libi2c.h>
#include "chrontel.h"

#include <lcd.h>

#define LCD_BPP_MASK 0x07000000
#define LCD0_PAS  0x80
#define LCD0_SDS  0x04

DISPTIMING dptVideoTiming ={ sizeof(DISPTIMING), 0 };

void LcdControlInit(int isTft, int isDualPanel)
{
    volatile SA2lcdregs* lcd = (volatile SA2lcdregs*)Xsl_MapReg[LCDREG].mapaddr;

		if (VOD_ATTR_DEFAULT != hVideoOutDevice) {
		    lcd->LCCR0 =0x003008F8;
		    lcd->LCCR3 =0x0420FF01;  // PSD=1, Output 25Mhz when L=27
		}
		else {
	// Intel DBPXA255 system
				// we assume the STN panel is dual-panel (THIS ONLY for LM31 panel)
			if (!isTft) {
				lcd->LCCR0 =0x0010107c;
				lcd->LCCR3 =0x0440FF0C;  // PSD=12, Output 3Mhz when L=27           
			}
			else {
				lcd->LCCR0 =0x003008F8;
			//For 240x320 TFT QVGA (Legend Sharp LCD???)
				lcd->LCCR3 =0x0400000B;  // PSD=1, Output 4.5Mhz when L=27
			//For 176x220 TFT
			//  lcd->LCCR3 =0x0460FF012;  // PSD=12, Output 3Mhz when L=27

			}
	//
			if (isTft) lcd->LCCR0 |= LCD0_PAS;
			else lcd->LCCR0 &= (~LCD0_PAS);
			if (isDualPanel) lcd->LCCR0 |= LCD0_SDS;
			else lcd->LCCR0 &= (~LCD0_SDS);
		}
		
}

void DispDrvrPowerHandler(BOOL	bOff)
{
    volatile SA2lcdregs* lcd = (volatile SA2lcdregs*)Xsl_MapReg[LCDREG].mapaddr;

	if (bOff) {
     //### special processing for STN panel
		LcdContrast(0);
        BcrEnable(0);
     //##
		LcdOnOff(0);
//		lcd->LCCR0  &= ~LCD_ENB;
     //### special processing for STN panel
	    BcrOnOff(0);
     //###
	}
	else {
       
		LcdSetupGPIOs();

		if (!bIsTftPanel) {
			BcrEnable(0);
		 //### special processing for STN panel
			BcrOnOff(0);
		}
		
		   lcd->FDADR0 = frameDescriptorCh0->FIDR;
		   lcd->FDADR1 = frameDescriptorCh1->FIDR;

           lcd->LCCR3 = (lcd->LCCR3 & ~LCD_BPP_MASK) | LCD_BPP(lcdFrameBitsPerPixel); 

		 if (!bIsTftPanel) {  // special processing for STN panel
			   BcrOnOff(1);

		 }

		   LcdOnOff(1);
		//lcd->LCCR0  |= LCD_ENB;
        
		 if (!bIsTftPanel) {  // special processing for STN panel
			 BcrEnable(1);
			LcdContrast(209);
		}
	}
}

VOID XSLGPE::PowerHandler(BOOL bOff)
{
	if (bOff) {
		if (videoPMState.PowerState != VideoPowerOff) {
           // turn off video driver
           vod_SetPower(hVideoOutDevice, VideoPowerOff);

		   DispDrvrPowerHandler(TRUE);

		   videoPMState.PowerState = VideoPowerOff;
		}
	}
	else {
		if (videoPMState.PowerState != VideoPowerOn) {
			// assume lcd CRTC timing not set
			isCrtcTimeSet = FALSE;
            
			if (VOD_ATTR_DEFAULT==hVideoOutDevice)
		      LcdControlInit(m_IsTftPanel, m_IsDualPanel);
			else  LcdControlInit(1, 0); // force for CHVOD device

CHDBG((TEXT("XSLGPE::Power On VOD device, Output=%x"),hVideoOutDevice ))

		   // Turn lcdOn by call DispDrvrPowerHandler(FALSE);
//           DispDrvrPowerHandler(FALSE);

			if (vod_GetConnectStatus(hVideoOutDevice)) {

				 // and ask driver to setTiming
                 vod_SetTiming(hVideoOutDevice, &dptVideoTiming);  // tell VOD device timing
//@#$
			    SetCrtcTiming( &dptVideoTiming);
				DispDrvrPowerHandler(FALSE);   // Turn on video output
				isCrtcTimeSet = TRUE;
//@#$
				 Sleep(5);         // delay 100ms for LCD clock become stable

				 vod_SetPower(hVideoOutDevice, VideoPowerOn);
				 vod_PostSetTiming(hVideoOutDevice);
			}

			// When there is no VOD device, or VOD device didn't call
			// vos_SetTiming, we need set Controller timing here
			if (!isCrtcTimeSet) {
              // Turn LcdOn
              SetCrtcTiming( &dptVideoTiming);
		      DispDrvrPowerHandler(FALSE);
			  isCrtcTimeSet=TRUE;
			}


		    videoPMState.PowerState = VideoPowerOn;
		}
	}
    return;

}


void XSLGPE::ContrastCmd(ULONG cjIn, PVOID pvIn, ULONG cjOut, PVOID pvOut)
{
//@@##NOTE: This implement only apply to IDP-PCA250 BSP
//          For different BSP, changes need be made
	ContrastCmdParm *ccm;

	ccm = (ContrastCmdParm *)pvIn;

	if (ccm && (ccm->command == CONTRAST_CMD_SET) 
         && (VOD_ATTR_DEFAULT & hVideoOutDevice) )  // only for SDTN panel
	{
		LcdContrast( 0x1ff & ccm->parm );
	}
//@@##
	return;
}


//#endif   // _X86_