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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/mtd/ftl.h
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/mtd/ftl.h')
-rw-r--r--include/linux/mtd/ftl.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/include/linux/mtd/ftl.h b/include/linux/mtd/ftl.h
new file mode 100644
index 000000000000..3678459b4535
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+++ b/include/linux/mtd/ftl.h
@@ -0,0 +1,76 @@
+/*
+ * $Id: ftl.h,v 1.6 2003/01/24 13:20:04 dwmw2 Exp $
+ *
+ * Derived from (and probably identical to):
+ * ftl.h 1.7 1999/10/25 20:23:17
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License
+ * at http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * The initial developer of the original code is David A. Hinds
+ * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
+ * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License version 2 (the "GPL"), in
+ * which case the provisions of the GPL are applicable instead of the
+ * above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the GPL.
+ */
+
+#ifndef _LINUX_FTL_H
+#define _LINUX_FTL_H
+
+typedef struct erase_unit_header_t {
+ u_int8_t LinkTargetTuple[5];
+ u_int8_t DataOrgTuple[10];
+ u_int8_t NumTransferUnits;
+ u_int32_t EraseCount;
+ u_int16_t LogicalEUN;
+ u_int8_t BlockSize;
+ u_int8_t EraseUnitSize;
+ u_int16_t FirstPhysicalEUN;
+ u_int16_t NumEraseUnits;
+ u_int32_t FormattedSize;
+ u_int32_t FirstVMAddress;
+ u_int16_t NumVMPages;
+ u_int8_t Flags;
+ u_int8_t Code;
+ u_int32_t SerialNumber;
+ u_int32_t AltEUHOffset;
+ u_int32_t BAMOffset;
+ u_int8_t Reserved[12];
+ u_int8_t EndTuple[2];
+} erase_unit_header_t;
+
+/* Flags in erase_unit_header_t */
+#define HIDDEN_AREA 0x01
+#define REVERSE_POLARITY 0x02
+#define DOUBLE_BAI 0x04
+
+/* Definitions for block allocation information */
+
+#define BLOCK_FREE(b) ((b) == 0xffffffff)
+#define BLOCK_DELETED(b) (((b) == 0) || ((b) == 0xfffffffe))
+
+#define BLOCK_TYPE(b) ((b) & 0x7f)
+#define BLOCK_ADDRESS(b) ((b) & ~0x7f)
+#define BLOCK_NUMBER(b) ((b) >> 9)
+#define BLOCK_CONTROL 0x30
+#define BLOCK_DATA 0x40
+#define BLOCK_REPLACEMENT 0x60
+#define BLOCK_BAD 0x70
+
+#endif /* _LINUX_FTL_H */