1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: Minimalistic non volatile memory driver

    15 *

    16 */

    17 

    18 #ifndef _SYBORG_MEDNVMEMORY_H

    19 #define _SYBORG_MEDNVMEMORY_H

    20 

    21 #include <kpower.h>

    22 #include <e32keys.h>

    23 #include <system.h>

    24 

    25 //#define DEBUG_MEDNVMEMORY

    26 #ifdef DEBUG_MEDNVMEMORY

    27 #define __DEBUG_PRINT(format...)    Kern::Printf(format)

    28 #else

    29 #define __DEBUG_PRINT(format...)    __KTRACE_OPT(KLOCDRV,Kern::Printf(format))

    30 #endif

    31 

    32 #define R_NVMEM_ID                                0x0000

    33 #define R_NVMEM_TRANSACTION_OFFSET                0x0004

    34 #define R_NVMEM_TRANSACTION_SIZE                  0x0008

    35 #define R_NVMEM_TRANSACTION_DIRECTION             0x000c

    36 #define R_NVMEM_TRANSACTION_EXECUTE               0x0010

    37 #define R_NVMEM_SHARED_MEMORY_BASE                0x0014

    38 #define R_NVMEM_NV_MEMORY_SIZE                    0x0018

    39 #define R_NVMEM_SHARED_MEMORY_SIZE                0x001c

    40 #define R_NVMEM_STATUS                            0x0020

    41 #define R_NVMEM_ENABLE                            0x0024

    42 #define R_NVMEM_LASTREG                           0x0028  // not a register, address of last register

    43 

    44 #define NVMEM_TRANSACTION_UNDEFINED 0

    45 #define NVMEM_TRANSACTION_READ 1

    46 #define NVMEM_TRANSACTION_WRITE 2

    47 

    48 // 512 Byte sectors

    49 const TInt KDiskSectorShift	= 9;

    50 const TInt KDiskSectorSize	= 0x200;

    51 

    52 // Dfc thread priority 

    53 const TInt KNVMemDfcThreadPriority = 24;

    54 

    55 // Transfer buffer size 256kBytes 

    56 const TInt KNVMemTransferBufferSize = 0x40000;

    57 // Transfer buffer size in sectors

    58 const TInt KNVMemTransferBufferSectorCount = KNVMemTransferBufferSize/KDiskSectorSize;

    59 

    60 #endif