/**********************************************************************
 *
 * Copyright (C) Imagination Technologies Ltd. All rights reserved.
 * 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 * 
 * This program is distributed in the hope it will be useful but, except 
 * as otherwise stated in writing, without any warranty; without even the 
 * implied warranty of merchantability or fitness for a particular purpose. 
 * See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 * 
 * The full GNU General Public License is included in this distribution in
 * the file called "COPYING".
 *
 * Contact Information:
 * Imagination Technologies Ltd. <gpl-support@imgtec.com>
 * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK 
 *
*****************************************************************************/

#if !defined(__SYSINFO_H__)
#define __SYSINFO_H__

/*!< System specific poll/timeout details */
#define MAX_HW_TIME_US				(500000)
#define WAIT_TRY_COUNT				(10000)

/*!
	List of device types present in this system
*/
typedef enum _SYS_DEVICE_TYPE_
{
	SYS_DEVICE_SGX						= 0,

	SYS_DEVICE_FORCE_I16 				= 0x7fff

} SYS_DEVICE_TYPE;

/* SGX, DISPLAY (external), VIDEO Y (external), VIDEO UV (external) */
#define SYS_DEVICE_COUNT 4


/*
	SGX Slave Port FIFO Size
	(in units of `Bits per Write Bus Width')
	Includes 5 slot safety factor for fullness register latency
*/
#define SGX_SP_FIFO_DWSIZE         	123

/* 
	Set the amount to reserve - currently taken as a 1/4 of the FIFO
	(The value in DWORDs is 1/4 the value in BYTEs, rounded down)
*/
#define SGX_SP_FIFO_RESERVEBYTES   	(SGX_SP_FIFO_DWSIZE & -4)
#define SGX_SP_FIFO_MAXALLOWEDBYTES	(SGX_SP_FIFO_DWSIZE * 4) - SGX_SP_FIFO_RESERVEBYTES

#define SGX_EXTRACT_FIFO_COUNT(x)   (((x) & SGX_INT_TA_FREEVCOUNT_MASK) >> SGX_INT_TA_FREEVCOUNT_SHIFT)
/*!<
	Macro to extract FIFO space from HW register value
*/

#endif	/* __SYSINFO_H__ */