ad9883.c

1. 8623L平台

/*
 *
 * Copyright (c) 2001-2007 Sigma Designs, Inc. 
 * All Rights Reserved. Proprietary and Confidential.
 *
 */

/**
	@file   AD9883.c
	@brief  device specific functions for main application
	
	@author Christian Wolff Sean.Sekwon.Choi
*/

// to enable or disable the debug messages of this source file, put 1 or 0 below
#if 0
#define LOCALDBG ENABLE
#else
#define LOCALDBG DISABLE
#endif

#include "common.h"
#include "AD9883.h"
#include "i2c.h"

struct cap_AD9883_instance {
	struct RUA *pRUA;
	RMuint32 I2CModuleID;
	struct EMhwlibI2CDeviceParameter I2CDevice;
	RMuint8 BaseDevice;

	// internal state
	RMuint32 state;
};
/*
********************************************************************************
* Capture Chip API
********************************************************************************
*/

RMstatus cap_AD9883_open(struct RUA *pRUA, 
			 struct cap_AD9883_instance **ppAD9883, 
			 RMuint32 I2CModuleID, 
			 struct EMhwlibI2CDeviceParameter *pI2CDevice)
{
	struct cap_AD9883_instance *pAD9883;
	
	RMDBGLOG((FUNCNAME, "%s\n",__func__));

	// Sanity checks
	if (ppAD9883 == NULL) return RM_FATALINVALIDPOINTER;
	*ppAD9883 = NULL;
	if (pRUA == NULL) return RM_FATALINVALIDPOINTER;
	if (pI2CDevice == NULL) return RM_FATALINVALIDPOINTER;
	
	// Allocate and clear local instance
	pAD9883 = (struct cap_AD9883_instance *)RMMalloc(sizeof(struct cap_AD9883_instance));
	if (pAD9883 == NULL) {
		RMDBGLOG((ENABLE, "FATAL! Not enough memory for struct cap_AD9883_instance!\n"));
		return RM_FATALOUTOFMEMORY;
	}
	RMMemset(pAD9883, 0, sizeof(struct cap_AD9883_instance));
	*ppAD9883 = pAD9883;
	
	// Set default and startup values
	pAD9883->pRUA = pRUA;
	pAD9883->I2CModuleID = I2CModuleID;
	pAD9883->I2CDevice = *pI2CDevice;
	pAD9883->BaseDevice = pI2CDevice->DevAddr;
	
	return RM_OK;

}

RMstatus cap_AD9883_close(struct cap_AD9883_instance *pAD9883)
{
	RMDBGLOG((FUNCNAME, "%s\n",__func__));
	// Sanity checks
	if (pAD9883 == NULL) return RM_FATALINVALIDPOINTER;
	
	// Free all ressources
	RMFree(pAD9883);
	
	return RM_OK;
}

RMstatus cap_AD9883_init_capture(struct cap_AD9883_instance *pAD9883,
				 enum cap_board board,
				 enum cap_video_input video_input, 
				 RMuint32 video_input_num )
{
	return RM_OK;
}

RMstatus cap_AD9883_tristate(struct cap_AD9883_instance *pAD9883)
{
	cap_i2c_write_dev(pAD9883, pAD9883->BaseDevice, 0x0F, 0x4C); // power down AD9883A
	
	return RM_OK;
}