EccNandFlash_WritePage
Default mainpageat91libmemoriesnandflashEccNandFlash_WritePage
Description Source Call Graph
Start Line: 160
unsigned char EccNandFlash_WritePage(const struct EccNandFlash *ecc, unsigned short block, unsigned short page, void *data, void *spare)
{
    unsigned char error;
    unsigned char tmpSpare[NandCommon_MAXPAGESPARESIZE];
    unsigned short pageDataSize = NandFlashModel_GetPageDataSize(MODEL(ecc));
    unsigned short pageSpareSize = NandFlashModel_GetPageSpareSize(MODEL(ecc));
    unsigned char hamming[NandCommon_MAXSPAREECCBYTES];

    ASSERT(data || spare, "EccNandFlash_WritePage: At least one area must be written\n\r");
    TRACE_DEBUG("EccNandFlash_WritePage(B#%d:P#%d)\n\r", block, page);

    // Compute ECC on the new data, if provided
    // If not provided, hamming code set to 0xFFFF.. to keep existing bytes
    memset(hamming, 0xFF, NandCommon_MAXSPAREECCBYTES);
    if (data) {

        // Compute hamming code on data
        Hamming_Compute256x(data, pageDataSize, hamming);
    }

    // Store code in spare buffer (if no buffer provided, use a temp. one)
    if (!spare) {

        spare = tmpSpare;
        memset(spare, 0xFF, pageSpareSize);
    }
    NandSpareScheme_WriteEcc(NandFlashModel_GetScheme(MODEL(ecc)), spare, hamming);

    // Perform write operation
    error = RawNandFlash_WritePage(RAW(ecc), block, page, data, spare);
    if (error) {

        TRACE_ERROR("EccNandFlash_WritePage: Failed to write page\n\r");
        return error;
    }

    return 0;
}