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

#include "mvPciIf.h"
#include "mvSysPexApi.h"

/* #if defined(MV_INCLUDE_PCI) */
/* #include "ctrlEnv/sys/mvSysPci.h" */
/* #endif */

/* defines  */
#ifdef MV_DEBUG
#define DB(x)	x
#else
#define DB(x)
#endif

/*******************************************************************************
* mvPciInit - Initialize PCI interfaces
*
* DESCRIPTION:
*
* INPUT:
*	None
*
* OUTPUT:
*	None
*
* RETURN:
*	MV_OK if function success otherwise MV_ERROR or MV_BAD_PARAM
*
*******************************************************************************/
MV_STATUS mvPciIfInit(MV_U32 pciIf, PCI_IF_MODE pciIfmode)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) {
#if defined(MV_INCLUDE_PCI)

		MV_PCI_MOD pciMod;

		if (PCI_IF_MODE_HOST == pciIfmode) {
			pciMod = MV_PCI_MOD_HOST;
		} else if (PCI_IF_MODE_DEVICE == pciIfmode) {
			pciMod = MV_PCI_MOD_DEVICE;
		} else {
			mvOsPrintf("%s: ERROR!!! Bus %d mode %d neither host nor device!\n",
				   __func__, pciIf, pciIfmode);
			return MV_FAIL;
		}

		return mvPciInit(pciIf - MV_PCI_START_IF, pciMod);
#else
		return MV_OK;
#endif
	} else if (PCI_IF_TYPE_PEX == pciIfType) {
#if defined(MV_INCLUDE_PEX)

		MV_PEX_TYPE pexType;

		if (PCI_IF_MODE_HOST == pciIfmode) {
			pexType = MV_PEX_ROOT_COMPLEX;
		} else if (PCI_IF_MODE_DEVICE == pciIfmode) {
			pexType = MV_PEX_END_POINT;
		} else {
			mvOsPrintf("%s: ERROR!!! Bus %d type %d neither root complex nor"
				   " end point\n", __func__, pciIf, pciIfmode);
			return MV_FAIL;
		}
		return mvSysPexInit(pciIf - MV_PEX_START_IF, pexType);

#else
		return MV_OK;
#endif

	} else {
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);
	}

	return MV_FAIL;
}

/* PCI configuration space read write */
/*******************************************************************************
* mvPciConfigRead - Read from configuration space
*
* DESCRIPTION:
*	This function performs a 32 bit read from PCI configuration space.
*	It supports both type 0 and type 1 of Configuration Transactions
*	(local and over bridge). In order to read from local bus segment, use
*	bus number retrieved from mvPciLocalBusNumGet(). Other bus numbers
*	will result configuration transaction of type 1 (over bridge).
*
* INPUT:
*	pciIf		- PCI interface number.
*	bus		- PCI segment bus number.
*	dev		- PCI device number.
*	func		- Function number.
*	regOffs		- Register offset.
*
* OUTPUT:
*	None.
*
* RETURN:
*	32bit register data, 0xffffffff on error
*
*******************************************************************************/
MV_U32 mvPciIfConfigRead(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_U32 func, MV_U32 regOff)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) {
#if defined(MV_INCLUDE_PCI)
		return mvPciConfigRead(pciIf - MV_PCI_START_IF, bus, dev, func, regOff);
#else
		return 0xffffffff;
#endif
	} else if (PCI_IF_TYPE_PEX == pciIfType) {
#if defined(MV_INCLUDE_PEX)
		return mvPexConfigRead(pciIf - MV_PEX_START_IF, bus, dev, func, regOff);
#else
		return 0xffffffff;
#endif

	} else {
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);
	}

	return 0;
}

/*******************************************************************************
* mvPciConfigWrite - Write to configuration space
*
* DESCRIPTION:
*	This function performs a 32 bit write to PCI configuration space.
*	It supports both type 0 and type 1 of Configuration Transactions
*	(local and over bridge). In order to write to local bus segment, use
*	bus number retrieved from mvPciLocalBusNumGet(). Other bus numbers
*	will result configuration transaction of type 1 (over bridge).
*
* INPUT:
*	pciIf		- PCI interface number.
*	bus		- PCI segment bus number.
*	dev		- PCI device number.
*	func		- Function number.
*	regOffs		- Register offset.
*	data		- 32bit data.
*
* OUTPUT:
*	None.
*
* RETURN:
*	MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciIfConfigWrite(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_U32 func, MV_U32 regOff, MV_U32 data)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) {
#if defined(MV_INCLUDE_PCI)
		return mvPciConfigWrite(pciIf - MV_PCI_START_IF, bus, dev, func, regOff, data);
#else
		return MV_OK;
#endif
	} else if (PCI_IF_TYPE_PEX == pciIfType) {
#if defined(MV_INCLUDE_PEX)
		return mvPexConfigWrite(pciIf - MV_PEX_START_IF, bus, dev, func, regOff, data);
#else
		return MV_OK;
#endif

	} else {
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);
	}

	return MV_FAIL;
}

/*******************************************************************************
* mvPciMasterEnable - Enable/disale PCI interface master transactions.
*
* DESCRIPTION:
*	This function performs read modified write to PCI command status
*	(offset 0x4) to set/reset bit 2. After this bit is set, the PCI
*	master is allowed to gain ownership on the bus, otherwise it is
*	incapable to do so.
*
* INPUT:
*	pciIf		- PCI interface number.
*	enable		- Enable/disable parameter.
*
* OUTPUT:
*	None.
*
* RETURN:
*	MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciIfMasterEnable(MV_U32 pciIf, MV_BOOL enable)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) {
#if defined(MV_INCLUDE_PCI)
		return mvPciMasterEnable(pciIf - MV_PCI_START_IF, enable);
#else
		return MV_OK;
#endif
	} else if (PCI_IF_TYPE_PEX == pciIfType) {
#if defined(MV_INCLUDE_PEX)
		return mvPexMasterEnable(pciIf - MV_PEX_START_IF, enable);
#else
		return MV_OK;
#endif
	} else {
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);
	}

	return MV_FAIL;
}

/*******************************************************************************
* mvPciSlaveEnable - Enable/disale PCI interface slave transactions.
*
* DESCRIPTION:
*	This function performs read modified write to PCI command status
*	(offset 0x4) to set/reset bit 0 and 1. After those bits are set,
*	the PCI slave is allowed to respond to PCI IO space access (bit 0)
*	and PCI memory space access (bit 1).
*
* INPUT:
*	pciIf		- PCI interface number.
*	dev		- PCI device number.
*	enable		- Enable/disable parameter.
*
* OUTPUT:
*	None.
*
* RETURN:
*	MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciIfSlaveEnable(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_BOOL enable)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) {
#if defined(MV_INCLUDE_PCI)
		return mvPciSlaveEnable(pciIf - MV_PCI_START_IF, bus, dev, enable);
#else
		return MV_OK;
#endif
	} else if (PCI_IF_TYPE_PEX == pciIfType) {
#if defined(MV_INCLUDE_PEX)
		return mvPexSlaveEnable(pciIf - MV_PEX_START_IF, bus, dev, enable);
#else
		return MV_OK;
#endif
	} else {
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);
	}

	return MV_FAIL;
}

/*******************************************************************************
* mvPciLocalBusNumSet - Set PCI interface local bus number.
*
* DESCRIPTION:
*	This function sets given PCI interface its local bus number.
*	Note: In case the PCI interface is PCI-X, the information is read-only.
*
* INPUT:
*	pciIf		- PCI interface number.
*	busNum		- Bus number.
*
* OUTPUT:
*	None.
*
* RETURN:
*	MV_NOT_ALLOWED in case PCI interface is PCI-X.
*	MV_BAD_PARAM on bad parameters, otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciIfLocalBusNumSet(MV_U32 pciIf, MV_U32 busNum)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) {
#if defined(MV_INCLUDE_PCI)
		return mvPciLocalBusNumSet(pciIf - MV_PCI_START_IF, busNum);
#else
		return MV_OK;
#endif
	} else if (PCI_IF_TYPE_PEX == pciIfType) {
#if defined(MV_INCLUDE_PEX)
		return mvPexLocalBusNumSet(pciIf - MV_PEX_START_IF, busNum);
#else
		return MV_OK;
#endif
	} else {
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);
	}

	return MV_FAIL;
}

/*******************************************************************************
* mvPciLocalBusNumGet - Get PCI interface local bus number.
*
* DESCRIPTION:
*	This function gets the local bus number of a given PCI interface.
*
* INPUT:
*	pciIf  - PCI interface number.
*
* OUTPUT:
*	None.
*
* RETURN:
*	Local bus number.0xffffffff on Error
*
*******************************************************************************/
MV_U32 mvPciIfLocalBusNumGet(MV_U32 pciIf)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) {
#if defined(MV_INCLUDE_PCI)
		return mvPciLocalBusNumGet(pciIf - MV_PCI_START_IF);
#else
		return 0xFFFFFFFF;
#endif
	} else if (PCI_IF_TYPE_PEX == pciIfType) {
#if defined(MV_INCLUDE_PEX)
		return mvPexLocalBusNumGet(pciIf - MV_PEX_START_IF);
#else
		return 0xFFFFFFFF;
#endif

	} else {
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);
	}

	return 0;
}

/*******************************************************************************
* mvPciLocalDevNumSet - Set PCI interface local device number.
*
* DESCRIPTION:
*	This function sets given PCI interface its local device number.
*	Note: In case the PCI interface is PCI-X, the information is read-only.
*
* INPUT:
*	pciIf		- PCI interface number.
*	devNum		- Device number.
*
* OUTPUT:
*	None.
*
* RETURN:
*	MV_NOT_ALLOWED in case PCI interface is PCI-X.
*	MV_BAD_PARAM on bad parameters, otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciIfLocalDevNumSet(MV_U32 pciIf, MV_U32 devNum)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) {
#if defined(MV_INCLUDE_PCI)
		return mvPciLocalDevNumSet(pciIf - MV_PCI_START_IF, devNum);
#else
		return MV_OK;
#endif
	} else if (PCI_IF_TYPE_PEX == pciIfType) {
#if defined(MV_INCLUDE_PEX)
		return mvPexLocalDevNumSet(pciIf - MV_PEX_START_IF, devNum);
#else
		return MV_OK;
#endif
	} else {
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);
	}

	return MV_FAIL;
}

/*******************************************************************************
* mvPciLocalDevNumGet - Get PCI interface local device number.
*
* DESCRIPTION:
*	This function gets the local device number of a given PCI interface.
*
* INPUT:
*	pciIf  - PCI interface number.
*
* OUTPUT:
*	None.
*
* RETURN:
*	Local device number. 0xffffffff on Error
*
*******************************************************************************/
MV_U32 mvPciIfLocalDevNumGet(MV_U32 pciIf)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType) {
#if defined(MV_INCLUDE_PCI)
		return mvPciLocalDevNumGet(pciIf - MV_PCI_START_IF);
#else
		return 0xFFFFFFFF;
#endif
	} else if (PCI_IF_TYPE_PEX == pciIfType) {
#if defined(MV_INCLUDE_PEX)
		return mvPexLocalDevNumGet(pciIf - MV_PEX_START_IF);
#else
		return 0xFFFFFFFF;
#endif

	} else {
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);
	}

	return 0;
}

/*******************************************************************************
* mvPciIfTypeGet -
*
* DESCRIPTION:
*
* INPUT:
*
* OUTPUT:
*	None.
*
* RETURN:
*
*******************************************************************************/
PCI_IF_TYPE mvPciIfTypeGet(MV_U32 pciIf)
{
	if ((pciIf >= MV_PCI_START_IF) && (pciIf < MV_PCI_MAX_IF + MV_PCI_START_IF))
		return PCI_IF_TYPE_CONVEN_PCIX;
	else if ((pciIf >= MV_PEX_START_IF) && (pciIf < MV_PEX_MAX_IF + MV_PEX_START_IF))
		return PCI_IF_TYPE_PEX;
	else
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);

	return 0xffffffff;
}

/*******************************************************************************
* mvPciIfTypeGet -
*
* DESCRIPTION:
*
* INPUT:
*
* OUTPUT:
*	None.
*
* RETURN:
*
*******************************************************************************/
MV_U32 mvPciRealIfNumGet(MV_U32 pciIf)
{
	PCI_IF_TYPE pciIfType = mvPciIfTypeGet(pciIf);

	if (PCI_IF_TYPE_CONVEN_PCIX == pciIfType)
		return (pciIf - MV_PCI_START_IF);
	else if (PCI_IF_TYPE_PEX == pciIfType)
		return (pciIf - MV_PEX_START_IF);
	else
		mvOsPrintf("%s: ERROR!!! Invalid pciIf %d\n", __func__, pciIf);

	return 0xffffffff;
}