Add more test harness stuff

[yaffs2.git] / direct / yaffs_fileem2k.c

diff --git a/direct/yaffs_fileem2k.c b/direct/yaffs_fileem2k.c
index 59d0c8efa12e3d51b1faf283bb6cdb8dcbec6ca2..ede934052f5842e3284c79b3afb757619362648e 100644 (file)
--- a/direct/yaffs_fileem2k.c
+++ b/direct/yaffs_fileem2k.c
@@ -15,7 +15,7 @@
 // This provides a YAFFS nand emulation on a file for emulating 2kB pages.
 // THis is only intended as test code to test persistence etc.
 
-const char *yaffs_flashif_c_version = "$Id: yaffs_fileem2k.c,v 1.7 2006-10-13 08:52:49 charles Exp $";
+const char *yaffs_flashif_c_version = "$Id: yaffs_fileem2k.c,v 1.10 2006-11-13 07:16:37 charles Exp $";
 
 
 #include "yportenv.h"
@@ -32,7 +32,7 @@ const char *yaffs_flashif_c_version = "$Id: yaffs_fileem2k.c,v 1.7 2006-10-13 08
 #include "yaffs_fileem2k.h"
 #include "yaffs_packedtags2.h"
 
-
+//#define SIMULATE_FAILURES
 
 typedef struct 
 {
@@ -61,6 +61,10 @@ static yflash_Device filedisk;
 int yaffs_testPartialWrite = 0;
 
 
+
+
+static __u8 localBuffer[PAGE_SIZE];
+
 static char *NToName(char *buf,int n)
 {
        sprintf(buf,"emfile%d",n);
@@ -144,7 +148,12 @@ int yflash_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8
        int written;
        int pos;
        int h;
+       int i;
+       int nRead;
+       int error;
        
+       T(YAFFS_TRACE_MTD,(TSTR("write chunk %d data %x tags %x" TENDSTR),chunkInNAND,(unsigned)data, (unsigned)tags));
+
        CheckInit();
        
        
@@ -155,13 +164,38 @@ int yflash_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8
                h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))];
                
                lseek(h,pos,SEEK_SET);
-               written = write(h,data,dev->nDataBytesPerChunk);
+               nRead =  read(h, localBuffer,dev->nDataBytesPerChunk);
+               for(i = error = 0; i < dev->nDataBytesPerChunk && !error; i++){
+                       if(localBuffer[i] != 0xFF){
+                               printf("nand simulation: chunk %d data byte %d was %0x2\n",
+                                       chunkInNAND,i,localBuffer[i]);
+                               error = 1;
+                       }
+               }
+               
+               for(i = 0; i < dev->nDataBytesPerChunk; i++)
+                 localBuffer[i] &= data[i];
+                 
+               if(memcmp(localBuffer,data,dev->nDataBytesPerChunk))
+                       printf("nand simulator: data does not match\n");
+                       
+               lseek(h,pos,SEEK_SET);
+               written = write(h,localBuffer,dev->nDataBytesPerChunk);
                
                if(yaffs_testPartialWrite){
                        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;
        }
        
@@ -171,6 +205,7 @@ int yflash_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8
                h = filedisk.handle[(chunkInNAND / (PAGES_PER_BLOCK * BLOCKS_PER_HANDLE))];
                
                lseek(h,pos,SEEK_SET);
+
                if( 0 && dev->isYaffs2)
                {
                        
@@ -181,8 +216,26 @@ int yflash_WriteChunkWithTagsToNAND(yaffs_Device *dev,int chunkInNAND,const __u8
                {
                        yaffs_PackedTags2 pt;
                        yaffs_PackTags2(&pt,tags);
-
-                       written = write(h,&pt,sizeof(pt));
+                       __u8 * ptab = (__u8 *)&pt;
+
+                       nRead = read(h,localBuffer,sizeof(pt));
+                       for(i = error = 0; 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];
+                        
+                       if(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;
                }
        }
@@ -207,12 +260,16 @@ int yaffs_CheckAllFF(const __u8 *ptr, int n)
 static int fail300 = 1;
 static int fail320 = 1;
 
+static int failRead10 = 2;
+
 int yflash_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *data, yaffs_ExtendedTags *tags)
 {
        int nread;
        int pos;
        int h;
        
+       T(YAFFS_TRACE_MTD,(TSTR("read chunk %d data %x tags %x" TENDSTR),chunkInNAND,(unsigned)data, (unsigned)tags));
+       
        CheckInit();
        
        
@@ -225,6 +282,7 @@ int yflash_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *da
                lseek(h,pos,SEEK_SET);
                nread = read(h,data,dev->nDataBytesPerChunk);
                
+               
                if(nread != dev->nDataBytesPerChunk) return YAFFS_FAIL;
        }
        
@@ -252,19 +310,26 @@ int yflash_ReadChunkWithTagsFromNAND(yaffs_Device *dev,int chunkInNAND, __u8 *da
                        yaffs_PackedTags2 pt;
                        nread= read(h,&pt,sizeof(pt));
                        yaffs_UnpackTags2(tags,&pt);
-                       if((chunkInNAND >> 6) == 300) {
+#ifdef SIMULATE_FAILURES
+                       if((chunkInNAND >> 6) == 100) {
                            if(fail300 && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR){
                               tags->eccResult = YAFFS_ECC_RESULT_FIXED;
                               fail300 = 0;
                            }
                            
                        }
-                       if((chunkInNAND >> 6) == 320) {
+                       if((chunkInNAND >> 6) == 110) {
                            if(fail320 && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR){
                               tags->eccResult = YAFFS_ECC_RESULT_FIXED;
                               fail320 = 0;
                            }
                        }
+#endif
+                       if(failRead10>0 && chunkInNAND == 10){
+                               failRead10--;
+                               nread = 0;
+                       }
+                       
                        if(nread != sizeof(pt)) return YAFFS_FAIL;
                }
        }
@@ -304,6 +369,8 @@ int yflash_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
                
        CheckInit();
        
+       printf("erase block %d\n",blockNumber);
+       
        if(blockNumber == 320)
                fail320 = 1;