//<MStar Software>
//******************************************************************************
// MStar Software
// Copyright (c) 2010 - 2012 MStar Semiconductor, Inc. All rights reserved.
// All software, firmware and related documentation herein ("MStar Software") are
// intellectual property of MStar Semiconductor, Inc. ("MStar") and protected by
// law, including, but not limited to, copyright law and international treaties.
// Any use, modification, reproduction, retransmission, or republication of all 
// or part of MStar Software is expressly prohibited, unless prior written 
// permission has been granted by MStar. 
//
// By accessing, browsing and/or using MStar Software, you acknowledge that you
// have read, understood, and agree, to be bound by below terms ("Terms") and to
// comply with all applicable laws and regulations:
//
// 1. MStar shall retain any and all right, ownership and interest to MStar
//    Software and any modification/derivatives thereof.
//    No right, ownership, or interest to MStar Software and any
//    modification/derivatives thereof is transferred to you under Terms.
//
// 2. You understand that MStar Software might include, incorporate or be
//    supplied together with third party`s software and the use of MStar
//    Software may require additional licenses from third parties.  
//    Therefore, you hereby agree it is your sole responsibility to separately
//    obtain any and all third party right and license necessary for your use of
//    such third party`s software. 
//
// 3. MStar Software and any modification/derivatives thereof shall be deemed as
//    MStar`s confidential information and you agree to keep MStar`s 
//    confidential information in strictest confidence and not disclose to any
//    third party.  
//
// 4. MStar Software is provided on an "AS IS" basis without warranties of any
//    kind. Any warranties are hereby expressly disclaimed by MStar, including
//    without limitation, any warranties of merchantability, non-infringement of
//    intellectual property rights, fitness for a particular purpose, error free
//    and in conformity with any international standard.  You agree to waive any
//    claim against MStar for any loss, damage, cost or expense that you may
//    incur related to your use of MStar Software.
//    In no event shall MStar be liable for any direct, indirect, incidental or
//    consequential damages, including without limitation, lost of profit or
//    revenues, lost or damage of data, and unauthorized system use.
//    You agree that this Section 4 shall still apply without being affected
//    even if MStar Software has been modified by MStar in accordance with your
//    request or instruction for your use, except otherwise agreed by both
//    parties in writing.
//
// 5. If requested, MStar may from time to time provide technical supports or
//    services in relation with MStar Software to you for your use of
//    MStar Software in conjunction with your or your customer`s product
//    ("Services").
//    You understand and agree that, except otherwise agreed by both parties in
//    writing, Services are provided on an "AS IS" basis and the warranty
//    disclaimer set forth in Section 4 above shall apply.  
//
// 6. Nothing contained herein shall be construed as by implication, estoppels
//    or otherwise:
//    (a) conferring any license or right to use MStar name, trademark, service
//        mark, symbol or any other identification;
//    (b) obligating MStar or any of its affiliates to furnish any person,
//        including without limitation, you and your customers, any assistance
//        of any kind whatsoever, or any information; or 
//    (c) conferring any license or right under any intellectual property right.
//
// 7. These terms shall be governed by and construed in accordance with the laws
//    of Taiwan, R.O.C., excluding its conflict of law rules.
//    Any and all dispute arising out hereof or related hereto shall be finally
//    settled by arbitration referred to the Chinese Arbitration Association,
//    Taipei in accordance with the ROC Arbitration Law and the Arbitration
//    Rules of the Association by three (3) arbitrators appointed in accordance
//    with the said Rules.
//    The place of arbitration shall be in Taipei, Taiwan and the language shall
//    be English.  
//    The arbitration award shall be final and binding to both parties.
//
//******************************************************************************
//<MStar Software>

#ifndef _KERNEL_H_
#define _KERNEL_H_

#include "MsCommon.h"

#include "drvPorts.h"
#include "drvUSB.h"
#include <cyg/hal/plf_intr.h>
#include <cyg/hal/drv_api.h>

#ifdef PR_DEBUG
#define pr_debug diag_printf
#else
#define pr_debug(fmt,...) \
  do { } while (0)
#endif

// Funtion for Protecting shared data (solve synchronisation by the easiest way)
//#define     MSOS_WAIT_FOREVER   (20000)

#define INT_DISABLED  0
#define INT_ENABLED   1

extern int CPU_Int_State;



#define USB_STOR_BLK_COMPLETE	1
#define USB_PTP_COMPLETE			2
#define USB_STOR_BLK_ASYNC    	4


static __inline__ void unlock_usb_core(void)
{
  USB_core_lock = 0;
}

static __inline__ void lock_usb_core(void)
{
  //Lokc ISR ==> don't process USB ISR when USB interrupt occurs
  USB_core_lock = 1;
}

static __inline__  void lock_TmrTaskDispatch(void)
{
  //Lock ==> don't dispatch registered software timer tasks
  Timer_task_lock = 1;
}

static __inline__  void unlock_TmrTaskDispatch(void)
{
  Timer_task_lock = 0;
}




#define TIMER_TASK_LOCK Timer_task_lock

// Note, need to be modified
static __inline__ void check_usb_lock(void)
{
	if ( USB_core_lock <= 0 )		// None use the USB_Core, we can lock it
		USB_core_lock = 1;
	else
	{
		// Locked, Someone is using usb core
		while( USB_core_lock > 0 )
			MsOS_DelayTask(100);

	    // Got the lock
       USB_core_lock = 1;
     }
}

//Disable IRQ and FIQ and store cpsr
static __inline__ void save_and_disable_firqs(U32 *flag)
{
	//HAL_DISABLE_INTERRUPTS(flag);
}

//Restore stored cpsr
static __inline__ void restore_firqs(U32 *flag)
{
	//HAL_RESTORE_INTERRUPTS(*flag);
}

//#define sti()
//#define cli()

static __inline__ void sti(void)
{
	//MsOS_EnableInterrupt(E_IRQ_USB);


	unlock_TmrTaskDispatch();
}

static __inline__ void cli(void)
{
	//MsOS_DisableInterrupt(E_IRQ_USB);

	lock_TmrTaskDispatch();
}

extern void *ncmem_alloc_page(dma_addr_t *dma_addr);
extern void ncmem_free_page(U32 addr);
extern void Destory_NC_mem(void);
#endif