emi2c_test.c

sigma_designs的tuner驱动

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

//#include "../include/em_types.h"
//#include "../include/dmesg.h"

#define ALLOW_OS_CODE 1
#include "rmdef/rmdef.h"
#include "llad/include/gbus.h"
#include "emhwlib_hal/include/emhwlib_registers.h"
#include "emhwlib_hal/i2c/include/i2c_hal.h"

#include "../helper/helper.h"
#include "emi2c.h"


#define EM86XX_CHIP_NUMBER 0
int main()
{
	char device[10];
	RMuint16 i;
	
	struct llad *pLLAD = NULL;
	struct gbus *pGBus = NULL;

	EMI2C_CONFIG	C;
	RMuint8 nack;
	
	/* defaults */

	/* use the correct chip in the system, if provided */
	snprintf(device, 10, "%d", EM86XX_CHIP_NUMBER);

	pLLAD = llad_open(device);
	if (pLLAD == NULL)
	{
		MPRINT(("llad_open failed\n"));
		exit(-1);
	}

	pGBus = gbus_open(pLLAD);
	if( pGBus == NULL )
	{
		llad_close(pLLAD);
		MPRINT(("gbus_open failed\n"));
		exit(-1);
	}
	
	memset(&C, 0, sizeof(C));
	C.pGBus = pGBus;
	C.PIO_Clock = 0;
	C.PIO_Data = 1;
	C.RegBase = REG_BASE_system_block;
	
	emi2c_start(&C);
	emi2c_stop(&C);
	
	MPRINT(("I2C address scan\n"));
	MPRINT(("    00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F"));
	for ( i = 0; i <=255; i++ )
	{
		if( (i % 16) == 0 )
			MPRINT(("\n %.2x ", i));
		emi2c_start(&C);
		emi2c_sendbyte(&C, i, &nack);

		if( nack )
		{
			MPRINT((" . "));
		}
		else
			MPRINT((" 1 "));
	}
	MPRINT(("\nend scan\n"));
	emi2c_stop(&C);
	
	gbus_close(pGBus);
	llad_close(pLLAD);
	
	exit(0);
}