/*
- * 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.
#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;
+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 |
+ YAFFS_TRACE_VERIFY |
+ YAFFS_TRACE_VERIFY_NAND |
+ YAFFS_TRACE_VERIFY_FULL |
+// (~0) |
+
+ 0;
+
void yaffsfs_SetError(int err)
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)
+{
+ size_t 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.
static yaffs_Device ram2kDev;
static yaffsfs_DeviceConfiguration yaffsfs_config[] = {
-
+#if 0
{ "/ram", &ramDev},
{ "/boot", &bootDev},
- { "/flash", &flashDev},
+ { "/flash/", &flashDev},
{ "/ram2k", &ram2kDev},
{(void *)0,(void *)0}
+#else
+ { "/", &ramDev},
+ { "/flash/boot", &bootDev},
+ { "/flash/flash", &flashDev},
+ { "/ram2k", &ram2kDev},
+ {(void *)0,(void *)0} /* Null entry to terminate list */
+#endif
};
// Set up devices
// /ram
memset(&ramDev,0,sizeof(ramDev));
- ramDev.nBytesPerChunk = 512;
+ ramDev.nDataBytesPerChunk = 512;
ramDev.nChunksPerBlock = 32;
ramDev.nReservedBlocks = 2; // Set this smaller for RAM
- ramDev.startBlock = 1; // Can't use block 0
+ ramDev.startBlock = 0; // Can use block 0
ramDev.endBlock = 127; // Last block in 2MB.
//ramDev.useNANDECC = 1;
ramDev.nShortOpCaches = 0; // Disable caching on this device.
// /boot
memset(&bootDev,0,sizeof(bootDev));
- bootDev.nBytesPerChunk = 512;
+ bootDev.nDataBytesPerChunk = 512;
bootDev.nChunksPerBlock = 32;
bootDev.nReservedBlocks = 5;
- bootDev.startBlock = 1; // Can't use block 0
+ bootDev.startBlock = 0; // Can use block 0
bootDev.endBlock = 63; // Last block
//bootDev.useNANDECC = 0; // use YAFFS's ECC
bootDev.nShortOpCaches = 10; // Use caches
// 2kpage/64chunk per block/128MB device
memset(&flashDev,0,sizeof(flashDev));
- flashDev.nBytesPerChunk = 2048;
+ flashDev.nDataBytesPerChunk = 2048;
flashDev.nChunksPerBlock = 64;
flashDev.nReservedBlocks = 5;
- flashDev.startBlock = 64; // First block after /boot
- //flashDev.endBlock = 127; // Last block in 16MB
- flashDev.endBlock = (32 * 1024 * 1024)/(flashDev.nBytesPerChunk * flashDev.nChunksPerBlock) - 1; // Last block in 512MB
+ flashDev.nCheckpointReservedBlocks = 5;
+ //flashDev.checkpointStartBlock = 1;
+ //flashDev.checkpointEndBlock = 20;
+ flashDev.startBlock = 0;
+ flashDev.endBlock = 200; // Make it smaller
+ //flashDev.endBlock = yflash_GetNumberOfBlocks()-1;
flashDev.isYaffs2 = 1;
+ flashDev.wideTnodesDisabled=0;
flashDev.nShortOpCaches = 10; // Use caches
flashDev.genericDevice = (void *) 2; // Used to identify the device in fstat.
flashDev.writeChunkWithTagsToNAND = yflash_WriteChunkWithTagsToNAND;
// 2kpage/64chunk per block/128MB device
memset(&ram2kDev,0,sizeof(ram2kDev));
- ram2kDev.nBytesPerChunk = nandemul2k_GetBytesPerChunk();
+ ram2kDev.nDataBytesPerChunk = nandemul2k_GetBytesPerChunk();
ram2kDev.nChunksPerBlock = nandemul2k_GetChunksPerBlock();
ram2kDev.nReservedBlocks = 5;
- ram2kDev.startBlock = 1; // First block after /boot
+ ram2kDev.startBlock = 0; // First block after /boot
//ram2kDev.endBlock = 127; // Last block in 16MB
ram2kDev.endBlock = nandemul2k_GetNumberOfBlocks() - 1; // Last block in 512MB
ram2kDev.isYaffs2 = 1;
+void SetCheckpointReservedBlocks(int n)
+{
+ flashDev.nCheckpointReservedBlocks = n;
+}