yaffs Refactor yaffs direct device list management, add nand abstraction, divide...

[yaffs2.git] / direct / basic-test / yaffscfg2k.c

diff --git a/direct/basic-test/yaffscfg2k.c b/direct/basic-test/yaffscfg2k.c
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+/*
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2010 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 "yaffscfg.h"
+#include "yaffs_guts.h"
+#include "yaffsfs.h"
+#include "yaffs_fileem2k.h"
+#include "yaffs_nandemul2k.h"
+#include "yaffs_norif1.h"
+#include "yaffs_trace.h"
+
+
+#include <errno.h>
+
+unsigned yaffs_traceMask = 
+
+       YAFFS_TRACE_SCAN |  
+       YAFFS_TRACE_GC |
+       YAFFS_TRACE_ERASE | 
+       YAFFS_TRACE_ERROR | 
+       YAFFS_TRACE_TRACING | 
+       YAFFS_TRACE_ALLOCATE | 
+       YAFFS_TRACE_BAD_BLOCKS |
+       YAFFS_TRACE_VERIFY | 
+       
+       0;
+        
+
+static int yaffsfs_lastError;
+
+void yaffsfs_SetError(int err)
+{
+       //Do whatever to set error
+       yaffsfs_lastError = err;
+}
+
+
+int yaffsfs_GetLastError(void)
+{
+       return yaffsfs_lastError;
+}
+
+void yaffsfs_Lock(void)
+{
+}
+
+void yaffsfs_Unlock(void)
+{
+}
+
+__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.
+}
+
+// Configuration
+
+#include "yaffs_ramdisk.h"
+#include "yaffs_flashif.h"
+#include "yaffs_flashif2.h"
+#include "yaffs_nandemul2k.h"
+
+struct yaffs_DeviceStruct ram1Dev;
+struct yaffs_DeviceStruct flashDev;
+struct yaffs_DeviceStruct m18_1Dev;
+
+int yaffs_StartUp(void)
+{
+       // Stuff to configure YAFFS
+       // Stuff to initialise anything special (eg lock semaphore).
+       yaffsfs_LocalInitialisation();
+       
+       // Set up devices
+       // /ram1   ram, yaffs1
+       memset(&ram1Dev,0,sizeof(ram1Dev));
+       ram1Dev.param.name = "ram1";
+       ram1Dev.param.totalBytesPerChunk = 512;
+       ram1Dev.param.nChunksPerBlock = 32;
+       ram1Dev.param.nReservedBlocks = 2; // Set this smaller for RAM
+       ram1Dev.param.startBlock = 0; // Can use block 0
+       ram1Dev.param.endBlock = 127; // Last block in 2MB.     
+       //ram1Dev.param.useNANDECC = 1;
+       ram1Dev.param.nShortOpCaches = 0;       // Disable caching on this device.
+       ram1Dev.driverContext = (void *) 0;     // Used to identify the device in fstat.
+       ram1Dev.param.writeChunkWithTagsToNAND = yramdisk_WriteChunkWithTagsToNAND;
+       ram1Dev.param.readChunkWithTagsFromNAND = yramdisk_ReadChunkWithTagsFromNAND;
+       ram1Dev.param.eraseBlockInNAND = yramdisk_EraseBlockInNAND;
+       ram1Dev.param.initialiseNAND = yramdisk_InitialiseNAND;
+       
+       yaffs_AddDevice(&ram1Dev);
+
+       // /M18-1 yaffs1 on M18 nor sim
+       memset(&m18_1Dev,0,sizeof(m18_1Dev));
+       m18_1Dev.param.name = "M18-1";
+       m18_1Dev.param.totalBytesPerChunk = 1024;
+       m18_1Dev.param.nChunksPerBlock =248;
+       m18_1Dev.param.nReservedBlocks = 2;
+       m18_1Dev.param.startBlock = 0; // Can use block 0
+       m18_1Dev.param.endBlock = 31; // Last block
+       m18_1Dev.param.useNANDECC = 0; // use YAFFS's ECC
+       m18_1Dev.param.nShortOpCaches = 10; // Use caches
+       m18_1Dev.driverContext = (void *) 1;    // Used to identify the device in fstat.
+       m18_1Dev.param.writeChunkToNAND = ynorif1_WriteChunkToNAND;
+       m18_1Dev.param.readChunkFromNAND = ynorif1_ReadChunkFromNAND;
+       m18_1Dev.param.eraseBlockInNAND = ynorif1_EraseBlockInNAND;
+       m18_1Dev.param.initialiseNAND = ynorif1_InitialiseNAND;
+       m18_1Dev.param.deinitialiseNAND = ynorif1_DeinitialiseNAND;
+
+       yaffs_AddDevice(&m18_1Dev);
+
+       // /yaffs2  yaffs2 file emulation
+       // 2kpage/64chunk per block
+       //
+       memset(&flashDev,0,sizeof(flashDev));
+       flashDev.param.name = "yaffs2";
+       flashDev.param.totalBytesPerChunk = 2048;
+       flashDev.param.nChunksPerBlock = 64;
+       flashDev.param.nReservedBlocks = 5;
+       flashDev.param.inbandTags = 0;
+       flashDev.param.startBlock = 0;
+       flashDev.param.endBlock = yflash2_GetNumberOfBlocks()-1;
+       flashDev.param.isYaffs2 = 1;
+       flashDev.param.useNANDECC=1;
+       flashDev.param.wideTnodesDisabled=0;
+       flashDev.param.refreshPeriod = 1000;
+       flashDev.param.nShortOpCaches = 10; // Use caches
+       flashDev.driverContext = (void *) 2;    // Used to identify the device in fstat.
+       flashDev.param.writeChunkWithTagsToNAND = yflash2_WriteChunkWithTagsToNAND;
+       flashDev.param.readChunkWithTagsFromNAND = yflash2_ReadChunkWithTagsFromNAND;
+       flashDev.param.eraseBlockInNAND = yflash2_EraseBlockInNAND;
+       flashDev.param.initialiseNAND = yflash2_InitialiseNAND;
+       flashDev.param.markNANDBlockBad = yflash2_MarkNANDBlockBad;
+       flashDev.param.queryNANDBlock = yflash2_QueryNANDBlock;
+       flashDev.param.enableXattr = 1;
+
+       yaffs_AddDevice(&flashDev);
+
+// todo        yaffs_initialise(yaffsfs_config);
+       
+       return 0;
+}
+
+
+