bsplcdc.cpp

mx27 f14v2 源代码。包括ADS板上诸多驱动的源码。

//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft 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.
//
//------------------------------------------------------------------------------
//
// Copyright (C) 2004-2006, Freescale Semiconductor, Inc. All Rights Reserved.
// THIS SOURCE CODE, AND ITS USE AND DISTRIBUTION, IS SUBJECT TO THE TERMS
// AND CONDITIONS OF THE APPLICABLE LICENSE AGREEMENT
//
//------------------------------------------------------------------------------


//------------------------------------------------------------------------------
// INCLUDE FILES    
//------------------------------------------------------------------------------
#include <windows.h>
#include <winddi.h>
#include <gpe.h>
#include "bsp.h"
#include "bsplcdc.h"

//------------------------------------------------------------------------------
// GLOBAL DEFINITIONS    
//------------------------------------------------------------------------------

ULONG BitMasks[] = { 0xF800, 0x07E0, 0x001F };

lcdcMode_t lcdcModes[LCDC_MODE_NUM] = {
    //mode #0, 240x320  16Bpp  60Hz
    {0, BSP_PREF_DISPLAY_WIDTH, 
        BSP_PREF_DISPLAY_HEIGHT, 
        BSP_PREF_DISPLAY_BPP, 60, gpe16Bpp},

    //put other modes here in future expansion
};

static PCSP_PBC_REGS pPBC = NULL;


//------------------------------------------------------------------------------
//
//  Function:  BSPSetDevCaps
//
//  This method changes the devices's capability
void BSPSetDevCaps(GDIINFO * pDevCaps)
{
	pDevCaps->flRaster &= ~(RC_PALETTE);
}



//------------------------------------------------------------------------------
//
//  Function:  BSPGetLCDCBitMasks
//
//  This method returns the bitmask used by BSP
ULONG* BSPGetLCDCBitMasks(void)
{
	return BitMasks;
}

//------------------------------------------------------------------------------
//
//  Function:  BSPGetModeNum
//
//  This method returns the number of gpdMode supported by BSP
ULONG BSPGetModeNum(void)
{
	return LCDC_MODE_NUM;
}


//------------------------------------------------------------------------------
//
//  Function:  BSPGetModeInfo
//
//  This method populates a GPEMode structure with 
//	data for the requested mode.
SCODE BSPGetModeInfo(GPEMode * pMode, int modeNo)
{
	*pMode = lcdcModes[modeNo].gpeMode;
	return S_OK;
}


//------------------------------------------------------------------------------
//
//  Function:  BSPSetMode
//
//  This method enables the device driver 
//  and requests a specific mode for the display.
SCODE BSPSetMode(int modeId, HPALETTE *pPalette)
{
	if(modeId != 0)
		return E_INVALIDARG;

    if (pPalette)
    {
              // 15,16,24, and 32bpp primaries are defined by red,green, and blue
              *pPalette = EngCreatePalette (
                                PAL_BITFIELDS,
                                0,
                                NULL,
                                BitMasks[0],  
                                BitMasks[1],  
                                BitMasks[2]);                    
        }

    return S_OK; 
}


//------------------------------------------------------------------------------
//
//  Function:  BSPInitLCDC
//
//  This method initiaizes the LCDC parameters specific to BSP
//   and does initializaion for BSP hardware
BOOL BSPInitLCDC(PLCDCCTX pContext)
{
	PHYSICAL_ADDRESS phyAddr;

	if(!pContext) return FALSE;
	pContext->pGPEModeInfo = &lcdcModes[0].gpeMode;
	pContext->VideoFrameHight = BSP_PREF_DISPLAY_HEIGHT;
	pContext->VideoFrameWidth = BSP_PREF_DISPLAY_WIDTH;
	pContext->VideoMemoryPhyAdd = IMAGE_SHARE_FRAMEBUFFER_RAM_PA_START;
	pContext->VideoMemorySize = (UINT32)IMAGE_SHARE_FRAMEBUFFER_RAM_SIZE;

	phyAddr.QuadPart = BSP_BASE_REG_PA_PBC_BASE;
	pPBC = (PCSP_PBC_REGS)MmMapIoSpace(phyAddr, sizeof(CSP_PBC_REGS), FALSE);
	if (pPBC  ==  NULL){
		return FALSE;
	}

	return TRUE;
}


//------------------------------------------------------------------------------
//
//  Function:  BSPDeinitLCDC
//
//  This method deinitiaizes the LCDC BSP-secific hardware 
	
void BSPDeinitLCDC(PLCDCCTX pContext)
{
	if(pPBC != NULL){
		MmUnmapIoSpace(pPBC, sizeof(CSP_PBC_REGS));
		pPBC = NULL;
	}
}

//------------------------------------------------------------------------------
//
//  Function:  BSPTurnOnLCD
//
//  This method turns on lcd panel just in case 		
void BSPTurnOnLCD(void)
{
	OUTREG16(&pPBC->BCTRL1_SET, CSP_BITFMASK(PBC_BCTRL1_LCDON));
}

//------------------------------------------------------------------------------
//
//  Function:  BSPTurnOffLCD
//
//  This method turns off lcd panel just in case 
void BSPTurnOffLCD(void)
{
	OUTREG16(&pPBC->BCTRL1_CLEAR, CSP_BITFMASK(PBC_BCTRL1_LCDON));
}

//------------------------------------------------------------------------------
//
//  Function:  BSPGetPixelSizeInByte
//
//  This method returns the size of pixel in bytes
UINT16 BSPGetPixelSizeInByte(void)
{
	return LCDC_PIXEL_SIZE_BYTES(BSP_PREF_DISPLAY_BPP);
}

//------------------------------------------------------------------------------
// END OF FILE
//------------------------------------------------------------------------------