/* ----------------------------------------------------------------------------
 *         SAM Software Package License
 * ----------------------------------------------------------------------------
 * Copyright (c) 2012, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ----------------------------------------------------------------------------
 */

/**
 * \file
 *
 * Implementation of Nand flash applet for SAM-BA.
 *
 */

/*----------------------------------------------------------------------------
 *        Headers
 *----------------------------------------------------------------------------*/

#include "../common/applet.h"
#include "board.h"

#include "SkipBlockNandFlash.h"
#include "NandSpareScheme.h"

#include <string.h>

/*----------------------------------------------------------------------------
 *        Local structures
 *----------------------------------------------------------------------------*/

/** \brief Structure for storing parameters for each command that can be
 * performed by the applet.*/

struct _Mailbox {

    /** Command send to the monitor to be executed. */
    uint32_t command;
    /** Returned status, updated at the end of the monitor execution. */
    uint32_t status;

    /** Input Arguments in the argument area */
    union {

        /** Input arguments for the Init command. */
        struct {

            /** Communication link used. */
            uint32_t comType;

            /** Trace level. */
            uint32_t traceLevel;

        } inputInit;

        /** Output arguments for the Init command. */
        struct {

            /** Memory size. */
            uint32_t memorySize;
            /** Buffer address. */
            uint32_t bufferAddress;
            /** Buffer size. */
            uint32_t bufferSize;

        } outputInit;

        /** Input arguments for the Write command. */
        struct {

            /** Buffer address. */
            uint32_t bufferAddr;
            /** Buffer size. */
            uint32_t bufferSize;
            /** Memory offset. */
            uint32_t memoryOffset;

        } inputWrite;

        /** Output arguments for the Write command. */
        struct {

            /** Bytes written. */
            uint32_t bytesWritten;

        } outputWrite;

        /** Input arguments for the Read command. */
        struct {

            /** Buffer address. */
            uint32_t bufferAddr;
            /** Buffer size. */
            uint32_t bufferSize;
            /** Memory offset. */
            uint32_t memoryOffset;

        } inputRead;

        /** Output arguments for the Read command. */
        struct {

            /** Bytes read. */
            uint32_t bytesRead;

        } outputRead;

        /** Input arguments for the Full Erase command. */
        struct {

            /** Type of Erase to perform */
            uint32_t eraseType;

        } inputFullErase;

        /** Input arguments for the Batch Erase command. */
        struct {
            /** Type of Erase to perform */
            uint32_t eraseType;
            /** Batch number. */
            uint32_t batch;
        } inputBatchErase;

         /* Input arguments for the Block Erase command. */
        struct {

            /** Memory start offset to be erased. */
            uint32_t memoryOffsetStart;
            /** Memory end offset to be erased. */
            uint32_t memoryOffsetEnd;
        } inputBlocksErase;
        /* Output arguments for the Full Erase command. */
        /* NONE */

        /* Output arguments for the Batch Erase command. */
        struct {
            /** next eraseing batch. */
            uint32_t nextBatch;
        } outputBatchErase;
        /* Input arguments for the List Bad Blocks command. */
        /* NONE */

        /** Output arguments for the List Bad Blocks command. */
        struct {

            /** Number of bad blocks found */
            uint32_t nbBadBlocks;
            /** Address of the buffer containing bad block list */
            uint32_t bufferAddress;

        } outputListBadBlocks;

        /** Input arguments for the Tag Block command. */
        struct {

            /** ID of the block to tag */
            uint32_t blockId;
            /** Data to be written in the bad block marker word */
            uint32_t tag;

        } inputTagBlock;

        /* Output arguments for the Tag Block command. */
        /* NONE */

    } argument;
};


/*----------------------------------------------------------------------------
 *         Global variables
 *----------------------------------------------------------------------------*/
/** End of program space (code + data). */
extern uint32_t end;


/*----------------------------------------------------------------------------
 *         Local variables
 *----------------------------------------------------------------------------*/
/** Communication type with SAM-BA GUI.*/
static uint32_t comType;
/** Nandflash memory size. */
static uint32_t memSize;
/** Number of blocks in nandflash. */
static uint32_t numBlocks;
/** Size of one block in the nandflash, in bytes. */
static uint32_t blockSize;
/** Size of one page in the nandflash, in bytes. */
static uint32_t pageSize;
/** Number of page per block */
static uint32_t numPagesPerBlock;

/** Pins used to access to nandflash. */
static const Pin pPinsNf[] = PINS_NANDFLASH;
/** Nandflash device structure. */
static struct SkipBlockNandFlash skipBlockNf;
/** Address for transferring command bytes to the nandflash. */
static uint32_t cmdBytesAddr = BOARD_NF_COMMAND_ADDR;
/** Address for transferring address bytes to the nandflash. */
static uint32_t addrBytesAddr = BOARD_NF_ADDRESS_ADDR;
/** Address for transferring data bytes to the nandflash. */
static uint32_t dataBytesAddr = BOARD_NF_DATA_ADDR;
/** Nandflash chip enable pin. */
static const Pin nfCePin = BOARD_NF_CE_PIN;
/** Nandflash ready/busy pin. */
static const Pin nfRbPin = BOARD_NF_RB_PIN;
/** Latest block have been erased. */
static uint16_t latestErasedBlock ;
/** Latest page have been erased. */
static uint8_t latestErasedPage ;

/*----------------------------------------------------------------------------
 *         Definitions
 *----------------------------------------------------------------------------*/
#define BufferSize           0xA000
#define ERASE_BATCH          8

/*----------------------------------------------------------------------------
 *         Global functions
 *----------------------------------------------------------------------------*/
/**
 * \brief  Applet main entry. This function decodes received command and executes it.
 *
 * \param argc  always 1
 * \param argv  Address of the argument area..
 */
int main(int argc, char **argv)
{
    struct _Mailbox *pMailbox = (struct _Mailbox *) argv;
    uint32_t bufferSize, bufferAddr, memoryOffset, bytesToWrite;
    uint16_t pagesToWrite, pagesToRead;
    uint32_t bytesWritten = 0;
    uint32_t bytesRead = 0;
    uint32_t nbBadBlocks = 0;
    uint32_t nbBlocks = 0;
    /* Temporary buffer used for non block aligned read / write */
    uint32_t tempBufferAddr;
    uint16_t block, page, offset, i;
    uint8_t unAlignedPage;
    /* Index in source buffer during buffer copy */
    uint32_t offsetInSourceBuff;
    /* Index in destination buffer during buffer copy */
    uint32_t offsetInTargetBuff;
    /* Errors returned by SkipNandFlash functions */
    uint8_t error = 0;


    /*----------------------------------------------------------
     * INIT:
     *----------------------------------------------------------*/
    if (pMailbox->command == APPLET_CMD_INIT) {

        /*  Re-configurate UART   (MCK maybe change in LowLevelInit())  */
        UART_Configure(115200, BOARD_MCK);

#if (DYN_TRACES == 1)
        dwTraceLevel = pMailbox->argument.inputInit.traceLevel;
#endif
        /* Save info of communication link */
        comType = pMailbox->argument.inputInit.comType;

        TRACE_INFO("-- NandFlash SAM-BA applet %s --\n\r", SAM_BA_APPLETS_VERSION);
        TRACE_INFO("-- %s\n\r", BOARD_NAME);
        TRACE_INFO("INIT command\n\r");

        /* Configure SMC for Nandflash accesses */
        BOARD_ConfigureNandFlash(SMC);
        PIO_Configure(pPinsNf, PIO_LISTSIZE(pPinsNf));

        if (pPinsNf->pio == 0) {
            pMailbox->status = APPLET_NO_DEV;
            pMailbox->argument.outputInit.bufferSize = 0;
            pMailbox->argument.outputInit.memorySize = 0;
            pMailbox->argument.outputInit.bufferAddress = (uint32_t) &end;
            TRACE_INFO("INIT command: No Nandflash defined for this board\n\r");
        }
        else {

            memset(&skipBlockNf, 0, sizeof(skipBlockNf));

            if (SkipBlockNandFlash_Initialize(&skipBlockNf,
                                              0,
                                              cmdBytesAddr,
                                              addrBytesAddr,
                                              dataBytesAddr,
                                              nfCePin,
                                              nfRbPin)) {

                pMailbox->status = APPLET_DEV_UNKNOWN;
                pMailbox->argument.outputInit.bufferSize = 0;
                pMailbox->argument.outputInit.memorySize = 0;
                TRACE_INFO("\tDevice Unknown\n\r");
            }
            else {

                TRACE_INFO("\tNandflash driver initialized\n\r");

                /* Get device parameters */
                memSize = NandFlashModel_GetDeviceSizeInBytes(&skipBlockNf.ecc.raw.model);
                blockSize = NandFlashModel_GetBlockSizeInBytes(&skipBlockNf.ecc.raw.model);
                numBlocks = NandFlashModel_GetDeviceSizeInBlocks(&skipBlockNf.ecc.raw.model);
                pageSize = NandFlashModel_GetPageDataSize(&skipBlockNf.ecc.raw.model);
                numPagesPerBlock = NandFlashModel_GetBlockSizeInPages(&skipBlockNf.ecc.raw.model);
                latestErasedBlock = 0xFFFF;

                pMailbox->status = APPLET_SUCCESS;
                pMailbox->argument.outputInit.bufferAddress = (unsigned int) &end;
                pMailbox->argument.outputInit.bufferSize = BufferSize;

                pMailbox->argument.outputInit.memorySize = memSize;
                TRACE_INFO("\t pageSize : 0x%x blockSize : 0x%x blockNb : 0x%x \n\r",
                    (unsigned int)pageSize,
                    (unsigned int)blockSize,
                    (unsigned int)numBlocks);
            }
        }
    }

    /*----------------------------------------------------------
     * WRITE:
     *----------------------------------------------------------*/
    else if (pMailbox->command == APPLET_CMD_WRITE) {

        memoryOffset = pMailbox->argument.inputWrite.memoryOffset;
        bufferAddr = pMailbox->argument.inputWrite.bufferAddr;
        tempBufferAddr = bufferAddr + BufferSize;
        bytesToWrite = pMailbox->argument.inputWrite.bufferSize;
        unAlignedPage = 0;
        TRACE_INFO("WRITE arguments : offset 0x%x, buffer at 0x%x, of 0x%x Bytes\n\r",
               (unsigned int)memoryOffset,
               (unsigned int)bufferAddr,
               (unsigned int)bytesToWrite);

        pMailbox->argument.outputWrite.bytesWritten = 0;

        /* Check word alignment */
        if (memoryOffset % 4) {

            pMailbox->status = APPLET_ALIGN_ERROR;
            goto exit;
        }

        /* Retrieve page and block addresses */
        if (NandFlashModel_TranslateAccess(&(skipBlockNf.ecc.raw.model),
                                           memoryOffset,
                                           bytesToWrite,
                                           &block,
                                           &page,
                                           &offset)) {
            pMailbox->status = APPLET_FAIL;
            goto exit;
        }
        if (block != latestErasedBlock ){
            /* Erase target block */
            error = SkipBlockNandFlash_EraseBlock(&skipBlockNf, block, NORMAL_ERASE);
            if (error == NandCommon_ERROR_BADBLOCK) {
                pMailbox->status = APPLET_BAD_BLOCK;
                goto exit;
            }
            if (error) {
                pMailbox->status = APPLET_FAIL;
                goto exit;
            }
            latestErasedBlock = block;
            latestErasedPage = 0xff;
        }
        if (page <= ((uint8_t)(latestErasedPage + 1))){
            error = SkipBlockNandFlash_EraseBlock(&skipBlockNf, block, NORMAL_ERASE);
            if (error == NandCommon_ERROR_BADBLOCK) {
                pMailbox->status = APPLET_BAD_BLOCK;
                goto exit;
            }
            if (error) {
                pMailbox->status = APPLET_FAIL;
                goto exit;
            }
            latestErasedBlock = block;
            latestErasedPage = page;
        }

        offsetInSourceBuff = 0;
        TRACE_INFO("WRITE at block 0x%x, page 0x%x, offset 0x%x in page \n\r",
            (unsigned int)block,
            (unsigned int)page,
            (unsigned int)offset);
        if (offset ) {

            /* We are not page aligned. */
            offsetInTargetBuff = offset;
            memset((uint32_t *)tempBufferAddr, 0xFF, pageSize);
            while (offsetInTargetBuff < pageSize) {

                *(uint32_t *)(tempBufferAddr + offsetInTargetBuff) = *(uint32_t *)(bufferAddr + offsetInSourceBuff);
                offsetInSourceBuff += 4;
                offsetInTargetBuff += 4;
                bytesWritten += 4;
            }
            error = SkipBlockNandFlash_WritePage(&skipBlockNf, block, page, ( void *)tempBufferAddr ,0);
            if (error == NandCommon_ERROR_BADBLOCK) {
                pMailbox->status = APPLET_BAD_BLOCK;
                goto exit;
            }
            if (error) {
                pMailbox->status = APPLET_FAIL;
                goto exit;
            }
            unAlignedPage++;
        }

        pagesToWrite = (bytesToWrite - bytesWritten) / pageSize;
        if (bytesToWrite - ((pagesToWrite + unAlignedPage)  * pageSize)) {
            pagesToWrite++;
        }
        if ((pagesToWrite + page ) > numPagesPerBlock)
        {
            pagesToWrite = numPagesPerBlock - page;
        }
        /* Write target block */
        error = SkipBlockNandFlash_WriteBlockUnaligned(&skipBlockNf, block, (page + unAlignedPage), pagesToWrite, ( void *)(bufferAddr + offsetInSourceBuff));
        bytesWritten += pagesToWrite * pageSize;
        if (bytesWritten > bytesToWrite) {
            bytesWritten = bytesToWrite;
        }
        if (error == NandCommon_ERROR_BADBLOCK) {

            pMailbox->status = APPLET_BAD_BLOCK;
            goto exit;
        }
        if (error) {

            pMailbox->status = APPLET_FAIL;
            goto exit;
        }

        pMailbox->argument.outputWrite.bytesWritten = bytesWritten;
        pMailbox->status = APPLET_SUCCESS;
    }

    /*----------------------------------------------------------
     * READ:
     *----------------------------------------------------------*/
    else if (pMailbox->command == APPLET_CMD_READ) {

        memoryOffset = pMailbox->argument.inputRead.memoryOffset;
        bufferAddr   = pMailbox->argument.inputRead.bufferAddr;
        tempBufferAddr = bufferAddr + BufferSize;

        bufferSize   = pMailbox->argument.inputRead.bufferSize;

        TRACE_INFO("READ at offset: 0x%x buffer at : 0x%x of: 0x%x Bytes\n\r",
               (unsigned int)memoryOffset,
               (unsigned int)bufferAddr,
               (unsigned int)bufferSize);

        pMailbox->argument.outputRead.bytesRead = 0;
        unAlignedPage = 0;
        /* Check word alignment */

        if (memoryOffset % 4) {

            pMailbox->status = APPLET_ALIGN_ERROR;
            goto exit;
        }

        /* Retrieve page and block addresses */
        if (NandFlashModel_TranslateAccess(&(skipBlockNf.ecc.raw.model),
                                           memoryOffset,
                                           bufferSize,
                                           &block,
                                           &page,
                                           &offset)) {
            pMailbox->status = APPLET_FAIL;
            goto exit;
        }

        TRACE_INFO("READ at block 0x%x, page 0x%x, offset in page 0x%x\n\r",
            (unsigned int)block,
            (unsigned int)page,
            (unsigned int)offset);
        offsetInTargetBuff = 0;
        if (offset) {
            memset((uint32_t *)tempBufferAddr, 0xFF, pageSize);
            error = SkipBlockNandFlash_ReadPage(&skipBlockNf, block, page, ( void *)tempBufferAddr ,0);
            if (error == NandCommon_ERROR_BADBLOCK) {
                pMailbox->status = APPLET_BAD_BLOCK;
                goto exit;
            }
            if (error) {
                pMailbox->status = APPLET_FAIL;
                goto exit;
            }

            /* Fill dest buffer with read data */
            offsetInSourceBuff = offset;
            while (offsetInSourceBuff < pageSize) {
                *(uint32_t *)(bufferAddr + offsetInTargetBuff) = *(uint32_t *)(tempBufferAddr + offsetInSourceBuff);
                offsetInSourceBuff += 4;
                offsetInTargetBuff += 4;
                bytesRead += 4;
            }
            unAlignedPage++;
        }
        pagesToRead = (bufferSize - bytesRead) / pageSize;
        if (bufferSize - ((pagesToRead + unAlignedPage)* pageSize)) {
            pagesToRead++;
        }
        if ((pagesToRead + page ) > numPagesPerBlock)
        {
            pagesToRead = numPagesPerBlock - page;
        }
        /* Read target block */
        error = SkipBlockNandFlash_ReadBlockUnaligned(&skipBlockNf, block, (page + unAlignedPage), pagesToRead, ( void *)(bufferAddr + offsetInTargetBuff));
        bytesRead += pagesToRead * pageSize;
        if (bytesRead > bufferSize) {
            bytesRead = bufferSize;
        }
        if (error == NandCommon_ERROR_BADBLOCK) {

            pMailbox->status = APPLET_BAD_BLOCK;
            goto exit;
        }
        if (error) {
            pMailbox->status = APPLET_FAIL;
            goto exit;
        }

        pMailbox->argument.outputRead.bytesRead = bytesRead;
        pMailbox->status = APPLET_SUCCESS;
    }

    /*----------------------------------------------------------
     * FULL ERASE:
     *----------------------------------------------------------*/
    else if (pMailbox->command == APPLET_CMD_FULL_ERASE) {

        TRACE_INFO("FULL ERASE command\n\r");
        TRACE_INFO("\tForce erase flag: 0x%x\n\r",
            (unsigned int)pMailbox->argument.inputFullErase.eraseType);

        for (i = 0; i < numBlocks; i++) {

            /* Erase the page */
            if (SkipBlockNandFlash_EraseBlock(&skipBlockNf, i, pMailbox->argument.inputFullErase.eraseType)) {

                TRACE_INFO("Found block #%d BAD, skip it\n\r", i);
            }
        }

        TRACE_INFO("Full Erase achieved\n\r");
        pMailbox->status = APPLET_SUCCESS;
    }

    /*----------------------------------------------------------
     * BATCH FULL ERASE:
     *----------------------------------------------------------*/
    else if (pMailbox->command == APPLET_CMD_BATCH_ERASE) {

        TRACE_INFO("BATCH ERASE command\n\r");
        block = pMailbox->argument.inputBatchErase.batch * (numBlocks / ERASE_BATCH);

        TRACE_INFO("Erase block from #%d to #%d\n\r", (int)block,
            (int)(block + (numBlocks / ERASE_BATCH)));
        for (i = block ; i < block + (numBlocks / ERASE_BATCH) ; i++) {

            /* Erase the block */
            if (SkipBlockNandFlash_EraseBlock(&skipBlockNf, i, pMailbox->argument.inputBatchErase.eraseType)) {

                TRACE_INFO("Found block #%d BAD, skip it\n\r", i);
            }
        }

        if ((pMailbox->argument.inputBatchErase.batch + 1) == ERASE_BATCH) {
            TRACE_INFO("Full Erase achieved, erase type is %d\n\r", (int)pMailbox->argument.inputBatchErase.eraseType);
            pMailbox->argument.outputBatchErase.nextBatch = 0;
        }
        else {
            pMailbox->argument.outputBatchErase.nextBatch =  pMailbox->argument.inputBatchErase.batch + 1;
            TRACE_INFO("Batch Erase achieved\n\r");
        }
        pMailbox->status = APPLET_SUCCESS;
    }

    /*----------------------------------------------------------
     * ERASE_BLOCKS:
     *----------------------------------------------------------*/
    else if (pMailbox->command == APPLET_CMD_ERASE_BLOCKS) {

        TRACE_INFO("BLOCKS ERASE command\n\r");
        memoryOffset = pMailbox->argument.inputBlocksErase.memoryOffsetStart;
        if ((pMailbox->argument.inputBlocksErase.memoryOffsetEnd > memSize) || (pMailbox->argument.inputBlocksErase.memoryOffsetEnd < memoryOffset) ) {
            TRACE_INFO("Out of memory space\n\r");
            pMailbox->status = APPLET_ERASE_FAIL;
            goto exit;
        }
        nbBlocks = ((pMailbox->argument.inputBlocksErase.memoryOffsetEnd- memoryOffset)/ blockSize) + 1;

        TRACE_INFO("Erase blocks from %d  to %d \n\r",
            (int)(memoryOffset / blockSize), (int)( (memoryOffset / blockSize)+ nbBlocks ) );
        /* Erase blocks */
        for (i =  memoryOffset / blockSize; i < memoryOffset / blockSize + nbBlocks ; i++) {
            if (SkipBlockNandFlash_EraseBlock(&skipBlockNf,  i , NORMAL_ERASE)) {
                 TRACE_INFO("Found block #%d BAD, skip it\n\r",  i);
            }
        }
        TRACE_INFO("Blocks Erase achieved\n\r");
        pMailbox->status = APPLET_SUCCESS;
    }

    /*----------------------------------------------------------
     * LIST BAD BLOCKS:
     *----------------------------------------------------------*/
    else if (pMailbox->command == APPLET_CMD_LIST_BAD_BLOCKS) {

        TRACE_INFO("LIST BAD BLOCKS command\n\r");

        nbBadBlocks = 0;
        bufferAddr = (uint32_t) &end;
        pMailbox->argument.outputListBadBlocks.bufferAddress = bufferAddr;

        for (i = 0; i < numBlocks; i++) {

            /* Erase the page */
            if (SkipBlockNandFlash_CheckBlock(&skipBlockNf, i) == BADBLOCK) {

                nbBadBlocks++;
                *((uint32_t *)bufferAddr) = i;
                bufferAddr += 4;
                TRACE_INFO("Found block #%d BAD\n\r", i);
            }
        }

        TRACE_INFO("LIST BAD BLOCKS achieved\n\r");

        pMailbox->argument.outputListBadBlocks.nbBadBlocks = nbBadBlocks;

        pMailbox->status = APPLET_SUCCESS;
    }

    /*----------------------------------------------------------
     * TAG BLOCK:
     *----------------------------------------------------------*/
    else if (pMailbox->command == APPLET_CMD_TAG_BLOCK) {

        TRACE_INFO("TAG BLOCK command\n\r");

        bufferAddr = (uint32_t) &end;
        block = pMailbox->argument.inputTagBlock.blockId;

        /* To tag the block as good, just erase it without bad block check */
        if ((uint8_t)pMailbox->argument.inputTagBlock.tag == 0xFF)
        {
            if (SkipBlockNandFlash_EraseBlock(&skipBlockNf, block, SCRUB_ERASE)) {

                TRACE_INFO("Cannot erase block %d\n\r", block);
                pMailbox->status = APPLET_FAIL;
                goto exit;
            }
        }
        else {

            for (i = 0; i < 2; i++) {

                /* Start by reading the spare */
                memset((uint8_t *)bufferAddr, 0xFF, NandCommon_MAXSPAREECCBYTES);

                TRACE_INFO("Tag to write : 0x%x\n\r", (uint8_t)pMailbox->argument.inputTagBlock.tag);

                NandSpareScheme_WriteBadBlockMarker((struct NandSpareScheme *)(NandFlashModel_GetScheme((struct NandFlashModel *)(&skipBlockNf))),
                                                    (uint8_t *)bufferAddr,
                                                    ((uint8_t)pMailbox->argument.inputTagBlock.tag));

                if (RawNandFlash_WritePage((struct RawNandFlash *)(&skipBlockNf), block, i, 0, (uint8_t *)bufferAddr)) {

                    TRACE_ERROR("Failed to write spare data of page %d of block %d\n\r", i, block);
                    pMailbox->status = APPLET_FAIL;
                    goto exit;
                }
            }
        }

        TRACE_INFO("TAG BLOCK achieved\n\r");

        pMailbox->status = APPLET_SUCCESS;
    }

exit :
    /* Acknowledge the end of command */
    TRACE_INFO("\tEnd of applet (command : %x --- status : %x)\n\r",
        (unsigned int)pMailbox->command, (unsigned int)pMailbox->status);

    /* Notify the host application of the end of the command processing */
    pMailbox->command = ~(pMailbox->command);
    if (comType == DBGU_COM_TYPE) {
        UART_PutChar(0x6);
    }

    return 0;
}

