* This is only intended as test code to test persistence etc.
*/
-const char *yaffs_flashif2_c_version = "$Id: yaffs_fileem2k.c,v 1.14 2008-07-02 20:17:41 charles Exp $";
+const char *yaffs_flashif2_c_version = "$Id: yaffs_fileem2k.c,v 1.18 2009-01-16 02:26:56 charles Exp $";
#include "yportenv.h"
#include "yaffs_fileem2k.h"
#include "yaffs_packedtags2.h"
-//#define SIMULATE_FAILURES
#define REPORT_ERROR 0
#define MAX_HANDLES 20
-#define BLOCKS_PER_HANDLE 8000
+#define BLOCKS_PER_HANDLE (32*8)
typedef struct
{
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);
+ }
+}
+
+
static char *NToName(char *buf,int n)
{
- sprintf(buf,"emfile2k%d",n);
+ sprintf(buf,"emfile-2k-%d",n);
return buf;
}
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;
}
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(&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");
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;
if(written != sizeof(pt)) return YAFFS_FAIL;
}
}
+
+ yflash2_MaybePowerFail();
}
return YAFFS_OK;