/*******************************************************************************

NAME			$RCSfile: sataConfig.c,v $
SUMMARY			SATA disgnostics configuration
VERSION			$Revision: 1.3 $
UPDATE DATE		$Date: 2009/09/01 08:42:09 $
PROGRAMMER		$Author: lecter $

		Copyright 2009 LSI Corporation. All Rights Reserved.

DESCRIPTION:
    The functions used to configure SATA diagnostics

REFERENCE:

*******************************************************************************/
#define __SRCsataConfig
/***  INCLUDES  ***/
#include <linux/ata.h>
#include <linux/libata.h>
#include <linux/pci.h>

/*** EXTERNAL REFERENCES ***/
extern UINT8 gExpSATADeviceNum;
extern UINT8 gMaxSATADeviceNum;

/***  PROCEDURES  ***/
/*******************************************************************************
* PROCEDURE
*
* NAME:     sataDeviceIsValid
* SUMMARY:  Verify if thi device is SATA
* SCOPE:    public
*
* DESCRIPTION: This function use ata device identification 
*				to verify if the device is SATA   
*
* RETURNS:
*
* NOTES:
*
*/
BOOLEAN sataDeviceIsValid(struct ata_device* pSATADev)
{
	if(!ata_id_is_ata(pSATADev->id)) return FALSE;
	if(!ata_id_is_sata(pSATADev->id)) return FALSE;
	if(!ata_id_has_dma(pSATADev->id)) return FALSE;
	if(!ata_id_has_lba(pSATADev->id)) return FALSE;
	if(!ata_id_iordy_disable(pSATADev->id)) return FALSE;
	if(!ata_id_has_iordy(pSATADev->id))	return FALSE;
	return TRUE;
}

/*******************************************************************************
* PROCEDURE
*
* NAME:     sataGetDeviceList
* SUMMARY:  Get the list of SATA device on this ahci controller
* SCOPE:    public
*
* DESCRIPTION: This function search all ports of this ahci controll 
*				to generate the attached SATA device list
*
* RETURNS:
*
* NOTES:
*
*/
UINT8 sataGetDeviceList(struct pci_dev* pDev, UINT8 idxSATAPort, struct scsi_device** pSCSIDev)
{
    struct ata_host*	pSATAHost = NULL;
	struct ata_port*	pSATAPort = NULL;
    struct ata_device*	pSATADev = NULL;
	UINT8				numSATADev;
	UINT8				idxDev;
	
	numSATADev = 0;
	for(idxDev = 0; idxDev < gMaxSATADeviceNum; idxDev++) {
		pSCSIDev[idxDev] = NULL;
	}

	pSATAHost = dev_get_drvdata(&pDev->dev);
	
	if(idxSATAPort < pSATAHost->n_ports)
		pSATAPort = pSATAHost->ports[idxSATAPort];
	else
		return 0;
		
//	if (!(pSATAPort->flags & ATA_FLAG_DISABLED))
//	{
//        ata_for_each_dev(pSATADev, &pSATAPort->link, ENABLED) 
//		{
//			if(sataDeviceIsValid(pSATADev))
//			{
//				if(pSATADev->sdev != NULL)
//				{
//					pSCSIDev[numSATADev] = pSATADev->sdev;
//					numSATADev++;
//				}
//			}
//		}
//	}

	ata_for_each_dev(pSATADev, &pSATAPort->link, ALL) {
		if (pSATADev->class != ATA_DEV_UNKNOWN)
			pSCSIDev[numSATADev] = pSATADev->sdev;
			numSATADev++;
	}

	return numSATADev;
}

/*******************************************************************************
* PROCEDURE
*
* NAME:     sataDiagDevice
* SUMMARY:  Diagnose if this ahci controller detect SATA device
* SCOPE:    public
*
* DESCRIPTION: This function will search all ports of this ahci controller 
*				to check if any SATA device has been detected 
*
* RETURNS:
*
* NOTES:
*
*/
void sataDiagDevice(struct pci_dev* pDev, 
					UINT8 idxSATAPort,  
					struct scsi_device** pSCSIDev, 
					UINT8* numSATADev)
{
    struct ata_host*	pSATAHost = NULL;
	struct ata_port*	pSATAPort = NULL;
    struct ata_device*	pSATADev = NULL;
	UINT8				idxDev;
	UINT8				numDev = 0;
	
	for(idxDev = 0; idxDev < gMaxSATADeviceNum; idxDev++) {
		pSCSIDev[idxDev] = NULL;
	}
	
	pSATAHost = dev_get_drvdata(&pDev->dev);
	
	if(idxSATAPort < pSATAHost->n_ports)
		pSATAPort = pSATAHost->ports[idxSATAPort];
	else
		return;
		
//	if (!(pSATAPort->flags & ATA_FLAG_DISABLED))
//	{
//		ata_for_each_dev(pSATADev, &pSATAPort->link, ENABLED) 
//		{
//			if(sataDeviceIsValid(pSATADev))
//			{
//				if(pSATADev->sdev != NULL)
//				{
//					pSCSIDev[numDev] = pSATADev->sdev;
//					numDev++;
//				}
//			}
//		}
//	}

	ata_for_each_dev(pSATADev, &pSATAPort->link, ALL) {
		if (pSATADev->class != ATA_DEV_UNKNOWN)
			pSCSIDev[numDev] = pSATADev->sdev;
			numDev++;
	}
	*numSATADev = numDev;
}