blndma.c

凌阳SPCE3200 系统开发板随机自带源程序。共安排了32个子目录

//=============================================================
// 文件名称：	BLNDMA.c
// 功能描述：	BLNDMA相关程序
// 维护记录：	2007-01-16	v1.0
//=============================================================
#include "SPCE3200_Register.h"
#include "SPCE3200_Constant.h"

/**************************************************************************
 *                                                                        *
 *  Function Name: BlnDmaStart_linear2linear_Dma                        *
 *                                                                        *
 *  Purposes:                                                             *
 *      								  *
 *  Descriptions:                                                         *
 *                                                                        *
 *  Arguments:                                                            *
 *      src_addr      : source address (28 bits)                     *
 *      dest_addr     : destination address (28 bits)                     *
 *      trans_width   : transfer width, maximum = 2048                    *
 *      trans_heigh   : transfer heigh, maximum = 2048                    *
 *      transparent_mode  :  (0:disable, 1:enable)                           *
 *      color_key     : (16 bits)                     *
 *      mode          : (0:polling mode, 1:interrupt mode)                *
 *              							  *
 *  Returns:                                                              *
 *                                                                        *
 *  See also:                                                             *
 *                                                                        *
 **************************************************************************/
void BlnDmaStart_linear2linear_Dma(
						unsigned int src_addr, 
						unsigned int dest_addr, 
						unsigned int trans_width, 
						unsigned int trans_heigh, 
						unsigned char  transparent_mode, 
						unsigned int color_key,  
						unsigned char  mode
						)
{
	*P_BLNDMA_SOURCEA_SA=src_addr;
	*P_BLNDMA_DESTINATION_SA=dest_addr;
	*P_BLNDMA_WIDTH_HEIGHT=(trans_heigh<<16)+trans_width;
	*P_BLNDMA_FILTER_PATTERN=color_key;
	*P_BLNDMA_ADDR_MODE=(*P_BLNDMA_ADDR_MODE&0xfffefffe);
	
	if (mode==0)
	{
		*P_BLNDMA_INT_STATUS=0x00000000;
		if (transparent_mode==0)
		{
			*P_BLNDMA_MODE_CTRL1=0x01000001;
		}
		else
		{
			*P_BLNDMA_MODE_CTRL1=0x01010001;
		}
		
		while (*P_BLNDMA_INT_STATUS==0x00000100)

		{

	 	//	print1("BLNDMA Busy\n");

		}		
				

	}
	
	if (mode==1)
	{
		*P_BLNDMA_INT_STATUS=0x00010000;
		if (transparent_mode==0)
		{
			*P_BLNDMA_MODE_CTRL1=0x01000001;
		}
		else
		{
			*P_BLNDMA_MODE_CTRL1=0x01010001;
		}		
	}	

}


/**************************************************************************
 *                                                                        *
 *  Function Name: BlnDmaStart_linear2block_Dma                           *
 *                                                                        *
 *  Purposes:                                                             *
 *      								  								  *
 *  Descriptions:                                                         *
 *                                                                        *
 *  Arguments:                                                            *
 *      src_addr      : source address (28 bits)                          *
 *      dest_base_addr     : destination baseaddress (28 bits)            *
 *		dest_offset_x : (11 bits), maximum = 2048						  *
 *      dest_offset_y : (11 bits), maximum = 2048                         *
 *      trans_width   : transfer width, maximum = 2048                    *
 *      trans_heigh   : transfer heigh, maximum = 2048                    *
 *      dest_bg_width : (3 bits)										  *
 *						0 : 256											  *
 *						1 : 320								              *
 *						2 : 512											  *
 *						3 : 640											  *
 *						4 : 1024  									      *
 *						5 : 2048										  *
 *						6,7 : reserved									  *
 *      dest_bg_heigh : (3 bits)										  *
 *						0 : 240											  *
 *						1 : 256								              *
 *						2 : 480											  *
 *						3 : 512											  *
 *						4 : 1024  									      *
 *						5 : 2048										  *
 *						6,7 : reserved									  *
 *      transparent_mode  :  (0:disable, 1:enable)                           *
 *      color_key     : (16 bits)                     *
 *      mode          : (0:polling mode, 1:interrupt mode)                *
 *              							  							  *
 *  Returns:                                                              *
 *                                                                        *
 *  See also:                                                             *
 *                                                                        *
 **************************************************************************/
void BlnDmaStart_linear2block_Dma(
						unsigned int src_addr, 
						unsigned int dest_base_addr, 
						unsigned int dest_offset_x,
						unsigned int dest_offset_y,
						unsigned char  dest_bg_width,
						unsigned char  dest_bg_heigh, 
						unsigned int trans_width, 
						unsigned int trans_heigh, 
						unsigned char  transparent_mode, 
						unsigned int color_key,  
						unsigned char  mode
						)
{
	*P_BLNDMA_SOURCEA_SA=src_addr;
	*P_BLNDMA_DESTINATION_BA=dest_base_addr;
	*P_BLNDMA_DESTINATION_OA=(dest_offset_y<<16)+dest_offset_x;
	*P_BLNDMA_DESTINATION_BACKGROUND=(dest_bg_heigh<<8)+dest_bg_width;	
	*P_BLNDMA_WIDTH_HEIGHT=(trans_heigh<<16)+trans_width;
	*P_BLNDMA_FILTER_PATTERN=color_key;
	*P_BLNDMA_ADDR_MODE=((*P_BLNDMA_ADDR_MODE|0x00010000)&0xfffffffe);
	
	if (mode==0)
	{
		*P_BLNDMA_INT_STATUS=0x00000000;
		if (transparent_mode==0)
		{
			*P_BLNDMA_MODE_CTRL1=0x01000001;
		}
		else
		{
			*P_BLNDMA_MODE_CTRL1=0x01010001;
		}
	}
	
	if (mode==1)
	{
		*P_BLNDMA_INT_STATUS=0x00010000;
		if (transparent_mode==0)
		{
			*P_BLNDMA_MODE_CTRL1=0x01000001;
		}
		else
		{
			*P_BLNDMA_MODE_CTRL1=0x01010001;
		}		
	}	

}

/**************************************************************************
 *                                                                        *
 *  Function Name: BlnDmaStart_block2block_Dma                           *
 *                                                                        *
 *  Purposes:                                                             *
 *      								  								  *
 *  Descriptions:                                                         *
 *                                                                        *
 *  Arguments:                                                            *
 *      src_base_addr : source A base address (28 bits)                   *
 *		src_offset_x  : (11 bits), maximum = 2048						  *
 *      src_offset_y  : (11 bits), maximum = 2048                         * 
 *      dest_base_addr     : destination base address (28 bits)           *
 *		dest_offset_x : (11 bits), maximum = 2048						  *
 *      dest_offset_y : (11 bits), maximum = 2048                         *
 *      trans_width   : transfer width, maximum = 2048                    *
 *      trans_heigh   : transfer heigh, maximum = 2048                    *
 *      src_bg_width/dest_bg_width : (3 bits)										  *
 *						0 : 256											  *
 *						1 : 320								              *
 *						2 : 512											  *
 *						3 : 640											  *
 *						4 : 1024  									      *
 *						5 : 2048										  *
 *						6,7 : reserved									  *
 *      src_bg_heigh/dest_bg_heigh : (3 bits)										  *
 *						0 : 240											  *
 *						1 : 256								              *
 *						2 : 480											  *
 *						3 : 512											  *
 *						4 : 1024  									      *
 *						5 : 2048										  *
 *						6,7 : reserved									  *
 *      transparent_mode  :  (0:disable, 1:enable)                           *
 *      color_key     : (16 bits)                     *
 *      mode          : (0:polling mode, 1:interrupt mode)                *
 *              							  							  *
 *  Returns:                                                              *
 *                                                                        *
 *  See also:                                                             *
 *                                                                        *
 **************************************************************************/
void BlnDmaStart_block2block_Dma(
						unsigned int src_base_addr, 
						unsigned int src_offset_x,
						unsigned int src_offset_y,
						unsigned char  src_bg_width,
						unsigned char  src_bg_heigh, 
						unsigned int dest_base_addr, 
						unsigned int dest_offset_x,
						unsigned int dest_offset_y,
						unsigned char  dest_bg_width,
						unsigned char  dest_bg_heigh, 
						unsigned int trans_width, 
						unsigned int trans_heigh, 
						unsigned char  transparent_mode, 
						unsigned int color_key,  
						unsigned char  mode
						)
{
	*P_BLNDMA_SOURCEA_BA=src_base_addr;
	*P_BLNDMA_SOURCEA_OA=(src_offset_y<<16)+src_offset_x;
	*P_BLNDMA_SOURCEA_BACKGROUND=(src_bg_heigh<<8)+src_bg_width;
	*P_BLNDMA_DESTINATION_BA=dest_base_addr;
	*P_BLNDMA_DESTINATION_OA=(dest_offset_y<<16)+dest_offset_x;
	*P_BLNDMA_DESTINATION_BACKGROUND=(dest_bg_heigh<<8)+dest_bg_width;	
	*P_BLNDMA_WIDTH_HEIGHT=(trans_heigh<<16)+trans_width;
	*P_BLNDMA_FILTER_PATTERN=color_key;
	*P_BLNDMA_ADDR_MODE=(*P_BLNDMA_ADDR_MODE|0x00010001);
	
	if (mode==0)
	{
		*P_BLNDMA_INT_STATUS=0x00000000;
		if (transparent_mode==0)
		{
			*P_BLNDMA_MODE_CTRL1=0x01000001;
		}
		else
		{
			*P_BLNDMA_MODE_CTRL1=0x01010001;
		}
	}
	
	if (mode==1)
	{
		*P_BLNDMA_INT_STATUS=0x00010000;
		if (transparent_mode==0)
		{
			*P_BLNDMA_MODE_CTRL1=0x01000001;
		}
		else
		{
			*P_BLNDMA_MODE_CTRL1=0x01010001;
		}		
	}	

}