mt9t001_init.c

TI DM642 DSP 驱动CMOS 成像芯片MT9T001(Micron)源代码,TI原版资料.包含驱动环境配置,对如基于DSP的数码相机,摄像机开发有重要参考价值.

/*
 *  Copyright 2004 by Texas Instruments Incorporated.
 *  All rights reserved. Property of Texas Instruments Incorporated.
 *  Restricted rights to use, duplicate or disclose this code are
 *  granted through contract.
 *  
 */

#include "MT9T001_init.h"

/*
 Initialize the EDC configuration structure for Capture
*/
void MT9T001_configCapParams(VPORTCAP_Params *chan, MT9T001_Params *params, Uint16 rowsize, Uint16 colsize, Uint16 horizblank, Uint16 vertblank, Uint16 shutterwidth)
{

    params->rowsize = rowsize - 1;
	params->colsize = colsize - 1;
	params->horizblank = horizblank;
	params->vertblank = vertblank;
	params->shutterwidth = shutterwidth;

	chan->fldXStop1 = colsize - 1;
	chan->fldYStop1 = rowsize;
	chan->fldXStop2 = colsize - 1;
	chan->fldYStop2 = rowsize;
	chan->thrld = (colsize);

}

/*
 Initialize the EDC configuration structure with color gain values
*/
void MT9T001_configColorGain(MT9T001_Params *params, Uint16 redA, Uint16 redD, Uint16 greenA, Uint16 greenD, Uint16 blueA, Uint16 blueD, Uint16 globalA, Uint16 globalD, Uint16 blacklevel)
{

	/****************************************
	 MT9T001 Register Variable Declarations
	****************************************/
	
	/*************************************************/
	typedef struct GREEN1GAIN {
	    unsigned int analog		:7;
	    unsigned int d7			:1;
	    unsigned int digital 	:7;    
	    unsigned int d15		:1;        
	} s_Green1Gain;    
	
	typedef union {
	    Uint16 data;
	    Uint8 byte[2];
		s_Green1Gain flds;
	} MT9T001_Green1Gain;
	/*************************************************/
	typedef struct BLUEGAIN {
	    unsigned int analog		:7;
	    unsigned int d7			:1;
	    unsigned int digital 	:7;    
	    unsigned int d15		:1;        
	} s_BlueGain;     
	
	typedef union {
	    Uint16 data;
	    Uint8 byte[2];
	    s_BlueGain flds;
	} MT9T001_BlueGain;
	/*************************************************/
	typedef struct REDGAIN {
	    unsigned int analog		:7;
	    unsigned int d7			:1;
	    unsigned int digital 	:7;    
	    unsigned int d15		:1;        
	} s_RedGain;     
	
	typedef union {
	    Uint16 data;
	    Uint8 byte[2];
	    s_RedGain flds;
	} MT9T001_RedGain;
	/*************************************************/
	typedef struct GREEN2GAIN {
	    unsigned int analog		:7;
	    unsigned int d7			:1;
	    unsigned int digital 	:7;    
	    unsigned int d15		:1;        
	} s_Green2Gain;     
	
	typedef union {
	    Uint16 data;
	    Uint8 byte[2];
	    s_Green2Gain flds;
	} MT9T001_Green2Gain;
	/*************************************************/
	typedef struct GLOBALGAIN {
	    unsigned int analog		:7;
	    unsigned int d7			:1;
	    unsigned int digital 	:7;    
	    unsigned int d15		:1;        
	} s_GlobalGain;     
	
	typedef union {
	    Uint16 data;
	    Uint8 byte[2];
	    s_GlobalGain flds;
	} MT9T001_GlobalGain;
	/*************************************************/
	typedef struct BLACKLEVEL {
	    unsigned int d0_d1		:2;
		unsigned int level 		:10;
		unsigned int d12_d15	:4;
	} s_BlackLevel;	
	
	typedef union {
	    Uint16 data;
	    Uint8 byte[2];
		s_BlackLevel flds;
	} MT9T001_BlackLevel;
	/*************************************************/
	MT9T001_Green1Gain Green1Gain_reg;
	MT9T001_BlueGain BlueGain_reg;
	MT9T001_RedGain RedGain_reg;
	MT9T001_Green2Gain Green2Gain_reg;
	MT9T001_GlobalGain GlobalGain_reg;
	MT9T001_BlackLevel BlackLevel_reg;

    // initialize registers
	RedGain_reg.data = 0;
	BlueGain_reg.data = 0;	
	Green1Gain_reg.data = 0;
	Green2Gain_reg.data = 0;
	BlackLevel_reg.data = 0;
	GlobalGain_reg.data = 0;
	
	// Set RGB Gain Values
	RedGain_reg.flds.analog = redA;
	RedGain_reg.flds.digital = redD;
	BlueGain_reg.flds.analog = blueA;
	BlueGain_reg.flds.digital = blueD;
	Green1Gain_reg.flds.analog = greenA;
	Green1Gain_reg.flds.digital = greenD;
	Green2Gain_reg.flds.analog = greenA;
	Green2Gain_reg.flds.digital = greenD;
	BlackLevel_reg.flds.level = blacklevel;
	// Set global gain value	
	GlobalGain_reg.flds.analog = globalA;
	GlobalGain_reg.flds.digital = globalD;
	
	params->redgain = RedGain_reg.data;
	params->bluegain = BlueGain_reg.data;
	params->green1gain = Green1Gain_reg.data;
	params->green2gain = Green2Gain_reg.data;
	params->globalgain = GlobalGain_reg.data;
	params->blacklevel = BlackLevel_reg.data;

}