Check in inband tags, some extra yaffs direct functions and some other changes

[yaffs2.git] / direct / yaffscfg2k.c

diff --git a/direct/yaffscfg2k.c b/direct/yaffscfg2k.c
index 77cbbdf1f22088c097a7a8534cb85de8ea7d6db0..2f7442eb10bdf2870f37b37a083c7f39099b3590 100644 (file)
--- a/direct/yaffscfg2k.c
+++ b/direct/yaffscfg2k.c
@@ -1,6 +1,18 @@
 /*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
- * yaffscfg.c  The configuration for the "direct" use of yaffs.
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2007 Aleph One Ltd.
+ *   for Toby Churchill Ltd and Brightstar Engineering
+ *
+ * Created by Charles Manning <charles@aleph1.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * yaffscfg2k.c  The configuration for the "direct" use of yaffs.
  *
  * This file is intended to be modified to your requirements.
  * There is no need to redistribute this file.
@@ -13,13 +25,31 @@
 
 #include <errno.h>
 
-unsigned yaffs_traceMask = YAFFS_TRACE_SCAN |  YAFFS_TRACE_GC | YAFFS_TRACE_GC_DETAIL | YAFFS_TRACE_WRITE | YAFFS_TRACE_ERASE | YAFFS_TRACE_TRACING | YAFFS_TRACE_ALLOCATE | YAFFS_TRACE_CHECKPOINT;
+unsigned yaffs_traceMask = 
 
+       YAFFS_TRACE_SCAN |  
+       YAFFS_TRACE_GC | YAFFS_TRACE_GC_DETAIL | 
+       YAFFS_TRACE_ERASE | 
+       YAFFS_TRACE_TRACING | 
+       YAFFS_TRACE_ALLOCATE | 
+       YAFFS_TRACE_CHECKPOINT |
+       YAFFS_TRACE_BAD_BLOCKS |
+       
+       0;
+        
+
+static int yaffsfs_lastError;
 
 void yaffsfs_SetError(int err)
 {
        //Do whatever to set error
-       errno = err;
+       yaffsfs_lastError = err;
+}
+
+
+int yaffsfs_GetLastError(void)
+{
+       return yaffsfs_lastError;
 }
 
 void yaffsfs_Lock(void)
@@ -35,6 +65,30 @@ __u32 yaffsfs_CurrentTime(void)
        return 0;
 }
 
+
+static int yaffs_kill_alloc = 0;
+static size_t total_malloced = 0;
+static size_t malloc_limit = 0 & 6000000;
+
+void *yaffs_malloc(size_t size)
+{
+       void * this;
+       if(yaffs_kill_alloc)
+               return NULL;
+       if(malloc_limit && malloc_limit <(total_malloced + size) )
+               return NULL;
+
+       this = malloc(size);
+       if(this)
+               total_malloced += size;
+       return this;
+}
+
+void yaffs_free(void *ptr)
+{
+       free(ptr);
+}
+
 void yaffsfs_LocalInitialisation(void)
 {
        // Define locking semaphore.
@@ -70,6 +124,7 @@ static yaffsfs_DeviceConfiguration yaffsfs_config[] = {
        { "/flash/boot", &bootDev},
        { "/flash/flash", &flashDev},
        { "/ram2k", &ram2kDev},
+       { "/flash/bigblock", &flashDev},
        {(void *)0,(void *)0} /* Null entry to terminate list */
 #endif
 };
@@ -84,7 +139,7 @@ int yaffs_StartUp(void)
        // Set up devices
        // /ram
        memset(&ramDev,0,sizeof(ramDev));
-       ramDev.nBytesPerChunk = 512;
+       ramDev.totalBytesPerChunk = 512;
        ramDev.nChunksPerBlock = 32;
        ramDev.nReservedBlocks = 2; // Set this smaller for RAM
        ramDev.startBlock = 0; // Can use block 0
@@ -99,7 +154,7 @@ int yaffs_StartUp(void)
 
        // /boot
        memset(&bootDev,0,sizeof(bootDev));
-       bootDev.nBytesPerChunk = 512;
+       bootDev.totalBytesPerChunk = 512;
        bootDev.nChunksPerBlock = 32;
        bootDev.nReservedBlocks = 5;
        bootDev.startBlock = 0; // Can use block 0
@@ -122,14 +177,14 @@ int yaffs_StartUp(void)
        // 2kpage/64chunk per block/128MB device
        memset(&flashDev,0,sizeof(flashDev));
 
-       flashDev.nBytesPerChunk = 2048;
+       flashDev.totalBytesPerChunk = 512;
        flashDev.nChunksPerBlock = 64;
        flashDev.nReservedBlocks = 5;
-       flashDev.nCheckpointReservedBlocks = 5;
+       flashDev.inbandTags = 1;
        //flashDev.checkpointStartBlock = 1;
        //flashDev.checkpointEndBlock = 20;
-       flashDev.startBlock = 20; 
-       flashDev.endBlock = 127; // Make it smaller
+       flashDev.startBlock = 0;
+       flashDev.endBlock = 200; // Make it smaller
        //flashDev.endBlock = yflash_GetNumberOfBlocks()-1;
        flashDev.isYaffs2 = 1;
        flashDev.wideTnodesDisabled=0;
@@ -148,7 +203,7 @@ int yaffs_StartUp(void)
        // 2kpage/64chunk per block/128MB device
        memset(&ram2kDev,0,sizeof(ram2kDev));
 
-       ram2kDev.nBytesPerChunk = nandemul2k_GetBytesPerChunk();
+       ram2kDev.totalBytesPerChunk = nandemul2k_GetBytesPerChunk();
        ram2kDev.nChunksPerBlock = nandemul2k_GetChunksPerBlock();
        ram2kDev.nReservedBlocks = 5;
        ram2kDev.startBlock = 0; // First block after /boot
@@ -171,4 +226,8 @@ int yaffs_StartUp(void)
 
 
 
+void SetCheckpointReservedBlocks(int n)
+{
+//     flashDev.nCheckpointReservedBlocks = n;
+}