/****************************************************************************** Filename:	camproset.c Descriptions		 - Camera Processor Initialization code using SCCB. - SCCB(Serial Camera Contol Bus) H/W dependent code. - Camera Processor Initialization code using IIC. History  - July 23, 2003. Draft Version 0.0 by purnnamu  - Janualy 15, 2004. Modifed by Boaz  - Feb. 10, 2004. Modified by junon for S3C2440A  Copyright (c) 2003 SAMSUNG Electronics. # However, Anybody can use this code without our permission.   ******************************************************************************/#include "def.h"#include "2440addr.h"#include "2440lib.h"#include "camproset.h"#include "camdef.h"#include "camdata.h"#define CAMWRDATA      (1)#define CAMRDDATA      (3)#define CAMSETRDADDR   (4)#define CAMIICBUFSIZE 0x20#if USED_CAM_TYPE==CAM_OV7620#define CAM_ID		(0x42)#define CAM_NAME  "OV7620"#elif USED_CAM_TYPE==CAM_S5X433#define CAM_ID		(0x42)#define CAM_NAME  "S5X433"#elif USED_CAM_TYPE==CAM_S5X532#define CAM_ID		(0x5a)#define CAM_NAME  "S5X532"#elif USED_CAM_TYPE==CAM_S5X3A1#define CAM_ID		(0x5a)#define CAM_NAME  "S5X3A1"#elif USED_CAM_TYPE==CAM_AU70H#define CAM_ID		(0x22)#define CAM_NAME  "AU70H"#endifstatic U8 _CAMiicData[CAMIICBUFSIZE];static volatile int _CAMiicDataCount;static volatile int _CAMiicStatus;static volatile int _CAMiicMode;static int _CAMiicPt;volatile U32 save_GPECON;void * func_cammodule_test[][2]={								   	//IIC 		(void *)Camera_WriteByte, 	"Write 1 byte data into Camera module register",	(void *)Camera_ReadByte,  	"Read 1 byte data from Camera module register",	(void *)Camera_WriteBlock,  	"Write a block of byte data into Camera module register",	(void *)Camera_ReadBlock,  	"Read a block of byte data from Camera module register",	0,0};void Camera_Iic_Test(void){	int i, camclk;	CameraModuleSetting();	Uart_Printf("\n***** IIC Master Tx/Rx Test Program with %s Camera Module *****\n", CAM_NAME);	while(1) 	{		i=0;		Uart_Printf("\n\n");		while(1) {   //display menu			Uart_Printf("%2d:%s\n", i, func_cammodule_test[i][1]);			i++;			if((int)(func_cammodule_test[i][0])==0) {				Uart_Printf("\n");				break;			}			if((i%4)==0)			Uart_Printf("\n");		}		Uart_Printf("\nPress Enter key to exit : ");		i = Uart_GetIntNum();		if(i==-1) break;		// return.		if(i>=0 && (i<((sizeof(func_cammodule_test)-1)/8)) )	// select and execute...			( (void (*)(void)) (func_cammodule_test[i][0]) )();	}	Uart_Printf("\n");   	rINTMSK |= BIT_IIC;}void IicPortSet(void){	save_GPECON = rGPECON;	rGPECON = rGPECON & ~(0xf<<28) | (0xa<<28);	//GPE15:IICSDA , GPE14:IICSCL 	 }void IicPortReturn(void){	rGPECON = save_GPECON;}void Wr_CamIIC(U32 slvAddr, U32 addr, U8 data){	_CAMiicMode      = CAMWRDATA;	_CAMiicPt        = 0;	_CAMiicData[0]   = (U8)addr;	_CAMiicData[1]   = data;	_CAMiicDataCount = 2;    	rIICDS        = slvAddr;            //0x5a: S5X532 Slave ID 	rIICSTAT      = 0xf0; //Start Master TX Condition    	rIICCON &= ~(1<<4);   //Clearing the pending bit isn't needed because the pending bit has been cleared.	while(_CAMiicDataCount!=-1);}void Rd_CamIIC(U32 slvAddr,U32 addr,U8 *data){	/*IIC Slave Addr Write + IIC Reg Addr Write */		_CAMiicMode      = CAMSETRDADDR;	_CAMiicPt        = 0;	_CAMiicData[0]   = (U8)addr;	_CAMiicDataCount = 1;	rIICDS   = slvAddr;	rIICSTAT = 0xf0;   //Master Tx, Start	rIICCON &= ~(1<<4);                    //Resumes IIC operation.  	//Clearing the pending bit isn't needed because the pending bit has been cleared.	while(_CAMiicDataCount!=-1);    	_CAMiicMode      = CAMRDDATA;	_CAMiicPt        = 0;	_CAMiicDataCount = 1;    	rIICDS   = slvAddr;	rIICSTAT = 0xb0;                    //Master Rx,Start	rIICCON &= ~(1<<4);                   //Resumes IIC operation.       	while(_CAMiicDataCount!=-1);	*data = _CAMiicData[1];}void __irq Cam_IICInt(void){	U32 iicSt,i;	ClearPending(BIT_IIC);	iicSt   = rIICSTAT; 	rINTMSK |= BIT_IIC;	if(iicSt & 0x8){}           //When bus arbitration is failed.	if(iicSt & 0x4){}           //When a slave address is matched with IICADD	if(iicSt & 0x2){}           //When a slave address is 0000000b	if(iicSt & 0x1){}           //When ACK isn't received	switch(_CAMiicMode) {		case CAMRDDATA:			if((_CAMiicDataCount--)==0) {				_CAMiicData[_CAMiicPt++] = rIICDS;            				rIICSTAT = 0x90;      //Stop MasRx condition 				rIICCON  &= ~(1<<4);      //Resumes IIC operation.				Delay(1);                 //Wait until stop condtion is in effect., Too long time...  # need the time 2440:Delay(1), 24A0: Delay(2)								//The pending bit will not be set after issuing stop condition.				break;    			}      			_CAMiicData[_CAMiicPt++] = rIICDS;     //The last data has to be read with no ack.			if((_CAMiicDataCount)==0)				rIICCON &= ~((1<<7)|(1<<4));      //Resumes IIC operation with NOACK in case of S5X532 Cameara  //				rIICCON = 0x6f;			//Resumes IIC operation with NOACK in case of S5X532 Cameara				else 				rIICCON &= ~(1<<4);      //Resumes IIC operation with ACK			break;		case CAMWRDATA:			if((_CAMiicDataCount--)==0) {				rIICSTAT = 0xd0;                //stop MasTx condition 				rIICCON  &= ~(1<<4);                //resumes IIC operation.				Delay(1);                       //wait until stop condtion is in effect. # need the time 2440:Delay(1), 24A0: Delay(2)					//The pending bit will not be set after issuing stop condition.				break;    			}			rIICDS = _CAMiicData[_CAMiicPt++];        //_iicData[0] has dummy.			for(i=0;i<10;i++);                  //for setup time until rising edge of IICSCL				rIICCON &= ~(1<<4);                     //resumes IIC operation.			break;		case CAMSETRDADDR: //Uart_Printf("[S%d]",_iicDataCount);			if((_CAMiicDataCount--)==0) {				rIICSTAT = 0xd0;                //stop MasTx condition 				rIICCON  &= ~(1<<4);                //resumes IIC operation.				Delay(1);      //wait until stop condtion is in effect.				break;                  //IIC operation is stopped because of IICCON[4]    			}			rIICDS = _CAMiicData[_CAMiicPt++];			for(i=0;i<10;i++);          //for setup time until rising edge of IICSCL				rIICCON &= ~(1<<4);             //resumes IIC operation.			break;		default:			break;      	}	rINTMSK &= ~BIT_IIC;}void Camera_WriteByte(void){	unsigned int i, j, save_E, save_PE, RegAddr, RegData, pageNo;      	#if (USED_CAM_TYPE==CAM_S5X532)||(USED_CAM_TYPE==CAM_S5X3A1)	Uart_Printf("Input Write Page No of %s\n=>", CAM_NAME);	pageNo = (U8)Uart_GetIntNum();#endif	Uart_Printf("Input Write Register Address of %s\n=>", CAM_NAME);	RegAddr = (U8)Uart_GetIntNum();    	Uart_Printf("Input Write Transfer Data into %s\n=>", CAM_NAME);	RegData = (U8)Uart_GetIntNum();#if (USED_CAM_TYPE==CAM_S5X532)||(USED_CAM_TYPE==CAM_S5X3A1)	Wr_CamIIC(CAM_ID, (U8)0xec, pageNo);  // set Page no#endif	Wr_CamIIC(CAM_ID, (U8)RegAddr, RegData); // set register after setting page number}void Camera_ReadByte(void){	unsigned int i, j, save_E, save_PE, RegAddr, RegData, pageNo;	static U8 rdata[8];      	#if (USED_CAM_TYPE==CAM_S5X532)||(USED_CAM_TYPE==CAM_S5X3A1)	Uart_Printf("Input Write Page No of %s\n=>", CAM_NAME);	pageNo = (U8)Uart_GetIntNum();	Wr_CamIIC(CAM_ID, (U8)0xec, pageNo);  // set Page no#endif	Uart_Printf("Input Read Register Address of %s\n=>", CAM_NAME);	RegAddr = (U8)Uart_GetIntNum();	Rd_CamIIC(CAM_ID, RegAddr, &rdata[0]); 	Uart_Printf("Register Addr: 0x%2x, data: 0x%2x\n", RegAddr,rdata[0]);}void Camera_WriteBlock(void){	unsigned int i, j, save_E, save_PE, RegAddr, RegData;	static U8 rdata[256]; #if USED_CAM_TYPE==CAM_OV7620	for(i=0; i<(sizeof(Ov7620_YCbCr8bit)/2); i++)		Wr_CamIIC(CAM_ID, Ov7620_YCbCr8bit[i][0], Ov7620_YCbCr8bit[i][1]);#elif USED_CAM_TYPE==CAM_S5X532	for(i=0; i<(sizeof(S5X532_YCbCr8bit)/2); i++)		Wr_CamIIC(CAM_ID, S5X532_YCbCr8bit[i][0], S5X532_YCbCr8bit[i][1]);#elif USED_CAM_TYPE==CAM_S5X3A1		for(i=0; i<(sizeof(S5X3A1_YCbCr8bit)/2); i++)			Wr_CamIIC(CAM_ID, S5X3A1_YCbCr8bit[i][0], S5X3A1_YCbCr8bit[i][1]);#elif USED_CAM_TYPE==CAM_AU70H	for(i=0; i<(sizeof(Au70h)/2); i++)		Wr_CamIIC(CAM_ID, Au70h[i][0], Au70h[i][1]);#endif	   Uart_Printf("\nBlock TX Ended...\n");	}void Camera_ReadBlock(void){	unsigned int i, j, save_E, save_PE, RegAddr, RegData;	static U8 rdata[256]; #if USED_CAM_TYPE==CAM_OV7620	for(i=0; i<(sizeof(Ov7620_YCbCr8bit)/2);i++)		Rd_CamIIC(CAM_ID, Ov7620_YCbCr8bit[i][0], &rdata[i]); 	for(i=0; i<(sizeof(Ov7620_YCbCr8bit)/2);i++)		Uart_Printf("Addr: 0x%2x, W: 0x%2x, R: 0x%2x\n", Ov7620_YCbCr8bit[i][0], Ov7620_YCbCr8bit[i][1], rdata[i]);#elif USED_CAM_TYPE==CAM_S5X532    for(i=0; i<(sizeof(S5X532_YCbCr8bit)/2);i++)   	{     		if(S5X532_YCbCr8bit[i][0] == 0xec)			Wr_CamIIC(CAM_ID, S5X532_YCbCr8bit[i][0], S5X532_YCbCr8bit[i][1]);		else			Rd_CamIIC(CAM_ID, S5X532_YCbCr8bit[i][0], &rdata[i]);     }  	for(i=0; i<(sizeof(S5X532_YCbCr8bit)/2);i++)	{	  	if(S5X532_YCbCr8bit[i][0] == 0xec)	       Uart_Printf("Page: 0x%2x\n",  S5X532_YCbCr8bit[i][1]);		else	  		Uart_Printf("Addr: 0x%2x, W: 0x%2x, R: 0x%2x\n", S5X532_YCbCr8bit[i][0], S5X532_YCbCr8bit[i][1], rdata[i]);  	}      #elif USED_CAM_TYPE==CAM_S5X3A1	for(i=0; i<(sizeof(S5X3A1_YCbCr8bit)/2);i++)	{ 			if(S5X3A1_YCbCr8bit[i][0] == 0xec)		Wr_CamIIC(CAM_ID, S5X3A1_YCbCr8bit[i][0], S5X3A1_YCbCr8bit[i][1]);	else		Rd_CamIIC(CAM_ID, S5X3A1_YCbCr8bit[i][0], &rdata[i]); 	}	for(i=0; i<(sizeof(S5X3A1_YCbCr8bit)/2);i++){		if(S5X3A1_YCbCr8bit[i][0] == 0xec)			 Uart_Printf("Page: 0x%2x\n",  S5X3A1_YCbCr8bit[i][1]);	else			Uart_Printf("Addr: 0x%2x, W: 0x%2x, R: 0x%2x\n", S5X3A1_YCbCr8bit[i][0], S5X3A1_YCbCr8bit[i][1], rdata[i]);	} 		 #elif USED_CAM_TYPE==CAM_AU70H	for(i=0; i<(sizeof(Au70h)/2);i++)		Rd_CamIIC(CAM_ID, Au70h[i][0], &rdata[i]); 	for(i=0; i<(sizeof(Au70h)/2);i++)		Uart_Printf("Addr: 0x%2x, W: 0x%2x, R: 0x%2x\n", Au70h[i][0], Au70h[i][1], rdata[i]);#endif}int CameraModuleSetting(void){	unsigned int i, j, save_E, save_PE, RegAddr, RegData;	static U8 rdata[256]; 	int donestatus;      		IicPortSet();	// for camera init, added by junon	pISR_IIC = (unsigned)Cam_IICInt; 	rINTMSK &= ~(BIT_IIC);	//Enable ACK, Prescaler IICCLK=PCLK/512, Enable interrupt, Transmit clock value Tx clock=IICCLK/16	rIICCON  = (1<<7) | (1<<6) | (1<<5) | (0x3);	rIICADD  = 0x10;                    //24A0 slave address = [7:1]	rIICSTAT = 0x10;                    //IIC bus data output enable(Rx/Tx)    rIICLC = (1<<2)|(3);   			// SDAOUT has 5clock cycle delay	donestatus=1;	Camera_WriteBlock();//	Camera_ReadBlock();		return donestatus;}