X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=direct%2Fyaffs_fileem2k.c;h=cfe992e0de674d0165dd9e31f139473f81b60ea2;hp=db90496eea148277f617c0e3aba7d0cc270b598a;hb=1ffa02489a63129109b66774681c94fe0a8a946a;hpb=94f402eb2a25625f34ff392efbcb8954478f5cfc diff --git a/direct/yaffs_fileem2k.c b/direct/yaffs_fileem2k.c index db90496..cfe992e 100644 --- a/direct/yaffs_fileem2k.c +++ b/direct/yaffs_fileem2k.c @@ -16,7 +16,7 @@ * This is only intended as test code to test persistence etc. */ -const char *yaffs_flashif2_c_version = "$Id: yaffs_fileem2k.c,v 1.15 2008-07-21 01:03:19 charles Exp $"; +const char *yaffs_flashif2_c_version = "$Id: yaffs_fileem2k.c,v 1.19 2009-10-14 00:01:57 charles Exp $"; #include "yportenv.h" @@ -33,7 +33,6 @@ const char *yaffs_flashif2_c_version = "$Id: yaffs_fileem2k.c,v 1.15 2008-07-21 #include "yaffs_fileem2k.h" #include "yaffs_packedtags2.h" -//#define SIMULATE_FAILURES #define REPORT_ERROR 0 @@ -52,7 +51,7 @@ typedef struct #define MAX_HANDLES 20 -#define BLOCKS_PER_HANDLE 8000 +#define BLOCKS_PER_HANDLE (32*8) typedef struct { @@ -64,6 +63,30 @@ static yflash_Device filedisk; int yaffs_testPartialWrite = 0; +extern int random_seed; +extern int simulate_power_failure; +static int initialised = 0; +static int remaining_ops; +static int nops_so_far; + +int ops_multiplier; + + +static void yflash2_MaybePowerFail(void) +{ + + nops_so_far++; + + + remaining_ops--; + if(simulate_power_failure && + remaining_ops < 1){ + printf("Simulated power failure after %d operations\n",nops_so_far); + exit(0); + } +} + + @@ -71,7 +94,7 @@ static __u8 localBuffer[PAGE_SIZE]; static char *NToName(char *buf,int n) { - sprintf(buf,"emfile2k-%d",n); + sprintf(buf,"emfile-2k-%d",n); return buf; } @@ -118,7 +141,11 @@ static int CheckInit(void) initialised = 1; - memset(dummyBuffer,0xff,sizeof(dummyBuffer)); + + srand(random_seed); + remaining_ops = (rand() % 1000) * 5; + memset(dummyBuffer,0xff,sizeof(dummyBuffer)); + filedisk.nBlocks = SIZE_IN_MB * BLOCKS_PER_MB; @@ -179,24 +206,104 @@ int yflash2_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u } else { - + /* First do a write of a partial page */ + int n_partials; + int bpos; + if(data) { pos = (chunkInNAND % (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE)) * PAGE_SIZE; h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))]; + + memcpy(localBuffer,data, dev->nDataBytesPerChunk); + + n_partials = rand()%20; + + for(i = 0; i < n_partials; i++){ + bpos = rand() % dev->nDataBytesPerChunk; + + localBuffer[bpos] |= (1 << (rand() & 7)); + } + + if(REPORT_ERROR && memcmp(localBuffer,data,dev->nDataBytesPerChunk)) + printf("nand simulator: data does not match\n"); + lseek(h,pos,SEEK_SET); - nRead = read(h, localBuffer,dev->nDataBytesPerChunk); - for(i = error = 0; i < dev->nDataBytesPerChunk && !error; i++){ - if(REPORT_ERROR && localBuffer[i] != 0xFF){ - printf("nand simulation: chunk %d data byte %d was %0x2\n", - chunkInNAND,i,localBuffer[i]); - error = 1; + written = write(h,localBuffer,dev->nDataBytesPerChunk); + + if(yaffs_testPartialWrite){ + close(h); + exit(1); + } + + + if(written != dev->nDataBytesPerChunk) return YAFFS_FAIL; + } + yflash2_MaybePowerFail(); + + if(tags) + { + pos = (chunkInNAND % (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE)) * PAGE_SIZE + PAGE_DATA_SIZE ; + h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))]; + + lseek(h,pos,SEEK_SET); + + if( 0 && dev->isYaffs2) + { + + written = write(h,tags,sizeof(yaffs_ExtendedTags)); + if(written != sizeof(yaffs_ExtendedTags)) return YAFFS_FAIL; + } + else + { + yaffs_PackedTags2 pt; + yaffs_PackTags2(dev,&pt,tags); + __u8 * ptab = (__u8 *)&pt; + + nRead = read(h,localBuffer,sizeof(pt)); + for(i = error = 0; REPORT_ERROR && i < sizeof(pt) && !error; i++){ + if(localBuffer[i] != 0xFF){ + printf("nand simulation: chunk %d oob byte %d was %0x2\n", + chunkInNAND,i,localBuffer[i]); + error = 1; + } } + + for(i = 0; i < sizeof(pt); i++) + localBuffer[i] &= ptab[i]; + + n_partials = rand()% sizeof(pt); + + for(i = 0; i < n_partials; i++){ + bpos = rand() % sizeof(pt); + + localBuffer[bpos] |= (1 << (rand() & 7)); + } + + if(REPORT_ERROR && memcmp(localBuffer,&pt,sizeof(pt))) + printf("nand sim: tags corruption\n"); + + lseek(h,pos,SEEK_SET); + + written = write(h,localBuffer,sizeof(pt)); + if(written != sizeof(pt)) return YAFFS_FAIL; } + } + + //yflash2_MaybePowerFail(); - for(i = 0; i < dev->nDataBytesPerChunk; i++) - localBuffer[i] &= data[i]; + /* Next do the whole write */ + if(data) + { + pos = (chunkInNAND % (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE)) * PAGE_SIZE; + h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))]; + + + memset(localBuffer,0xFF, PAGE_SIZE); + for(i = 0; i < dev->nDataBytesPerChunk; i++){ + localBuffer[i] &= data[i]; + } if(REPORT_ERROR && memcmp(localBuffer,data,dev->nDataBytesPerChunk)) printf("nand simulator: data does not match\n"); @@ -208,14 +315,6 @@ int yflash2_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u close(h); exit(1); } - -#ifdef SIMULATE_FAILURES - if((chunkInNAND >> 6) == 100) - written = 0; - - if((chunkInNAND >> 6) == 110) - written = 0; -#endif if(written != dev->nDataBytesPerChunk) return YAFFS_FAIL; @@ -237,7 +336,7 @@ int yflash2_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u else { yaffs_PackedTags2 pt; - yaffs_PackTags2(&pt,tags); + yaffs_PackTags2(dev,&pt,tags); __u8 * ptab = (__u8 *)&pt; nRead = read(h,localBuffer,sizeof(pt)); @@ -261,6 +360,8 @@ int yflash2_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u if(written != sizeof(pt)) return YAFFS_FAIL; } } + + yflash2_MaybePowerFail(); } return YAFFS_OK; @@ -370,7 +471,7 @@ int yflash2_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *d { yaffs_PackedTags2 pt; nread= read(h,&pt,sizeof(pt)); - yaffs_UnpackTags2(tags,&pt); + yaffs_UnpackTags2(dev,tags,&pt); #ifdef SIMULATE_FAILURES if((chunkInNAND >> 6) == 100) { if(fail300 && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR){