1 files changed, 103 insertions, 0 deletions

diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
new file mode 100644
index 000000000000..a76ab898f445
--- /dev/null
+++ b/include/mtd/mtd-abi.h
@@ -0,0 +1,103 @@
+/*
+ * $Id: mtd-abi.h,v 1.7 2004/11/23 15:37:32 gleixner Exp $
+ *
+ * Portions of MTD ABI definition which are shared by kernel and user space 
+ */
+
+#ifndef __MTD_ABI_H__
+#define __MTD_ABI_H__
+
+#ifndef __KERNEL__ /* Urgh. The whole point of splitting this out into
+                    separate files was to avoid #ifdef __KERNEL__ */
+#define __user
+#endif
+
+struct erase_info_user {
+        uint32_t start;
+        uint32_t length;
+};
+
+struct mtd_oob_buf {
+        uint32_t start;
+        uint32_t length;
+        unsigned char __user *ptr;
+};
+
+#define MTD_ABSENT              0
+#define MTD_RAM                 1
+#define MTD_ROM                 2
+#define MTD_NORFLASH            3
+#define MTD_NANDFLASH           4
+#define MTD_PEROM               5
+#define MTD_OTHER               14
+#define MTD_UNKNOWN             15
+
+#define MTD_CLEAR_BITS          1       // Bits can be cleared (flash)
+#define MTD_SET_BITS            2       // Bits can be set
+#define MTD_ERASEABLE           4       // Has an erase function
+#define MTD_WRITEB_WRITEABLE    8       // Direct IO is possible
+#define MTD_VOLATILE            16      // Set for RAMs
+#define MTD_XIP                 32      // eXecute-In-Place possible
+#define MTD_OOB                 64      // Out-of-band data (NAND flash)
+#define MTD_ECC                 128     // Device capable of automatic ECC
+#define MTD_NO_VIRTBLOCKS       256     // Virtual blocks not allowed
+
+// Some common devices / combinations of capabilities
+#define MTD_CAP_ROM             0
+#define MTD_CAP_RAM             (MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEB_WRITEABLE)
+#define MTD_CAP_NORFLASH        (MTD_CLEAR_BITS|MTD_ERASEABLE)
+#define MTD_CAP_NANDFLASH       (MTD_CLEAR_BITS|MTD_ERASEABLE|MTD_OOB)
+#define MTD_WRITEABLE           (MTD_CLEAR_BITS|MTD_SET_BITS)
+
+
+// Types of automatic ECC/Checksum available
+#define MTD_ECC_NONE            0       // No automatic ECC available
+#define MTD_ECC_RS_DiskOnChip   1       // Automatic ECC on DiskOnChip
+#define MTD_ECC_SW              2       // SW ECC for Toshiba & Samsung devices
+
+/* ECC byte placement */
+#define MTD_NANDECC_OFF         0       // Switch off ECC (Not recommended)
+#define MTD_NANDECC_PLACE       1       // Use the given placement in the structure (YAFFS1 legacy mode)
+#define MTD_NANDECC_AUTOPLACE   2       // Use the default placement scheme
+#define MTD_NANDECC_PLACEONLY   3       // Use the given placement in the structure (Do not store ecc result on read)
+
+struct mtd_info_user {
+        uint8_t type;
+        uint32_t flags;
+        uint32_t size;   // Total size of the MTD
+        uint32_t erasesize;
+        uint32_t oobblock;  // Size of OOB blocks (e.g. 512)
+        uint32_t oobsize;   // Amount of OOB data per block (e.g. 16)
+        uint32_t ecctype;
+        uint32_t eccsize;
+};
+
+struct region_info_user {
+        uint32_t offset;                /* At which this region starts, 
+                                         * from the beginning of the MTD */
+        uint32_t erasesize;             /* For this region */
+        uint32_t numblocks;             /* Number of blocks in this region */
+        uint32_t regionindex;
+};
+
+#define MEMGETINFO              _IOR('M', 1, struct mtd_info_user)
+#define MEMERASE                _IOW('M', 2, struct erase_info_user)
+#define MEMWRITEOOB             _IOWR('M', 3, struct mtd_oob_buf)
+#define MEMREADOOB              _IOWR('M', 4, struct mtd_oob_buf)
+#define MEMLOCK                 _IOW('M', 5, struct erase_info_user)
+#define MEMUNLOCK               _IOW('M', 6, struct erase_info_user)
+#define MEMGETREGIONCOUNT       _IOR('M', 7, int)
+#define MEMGETREGIONINFO        _IOWR('M', 8, struct region_info_user)
+#define MEMSETOOBSEL            _IOW('M', 9, struct nand_oobinfo)
+#define MEMGETOOBSEL            _IOR('M', 10, struct nand_oobinfo)
+#define MEMGETBADBLOCK          _IOW('M', 11, loff_t)
+#define MEMSETBADBLOCK          _IOW('M', 12, loff_t)
+
+struct nand_oobinfo {
+        uint32_t useecc;
+        uint32_t eccbytes;
+        uint32_t oobfree[8][2];
+        uint32_t eccpos[32];
+};
+
+#endif /* __MTD_ABI_H__ */