Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 226 insertions, 0 deletions

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
new file mode 100644
index 000000000000..b3d134392b31
--- /dev/null
+++ b/include/linux/mtd/mtd.h
@@ -0,0 +1,226 @@
+/* 
+ * $Id: mtd.h,v 1.56 2004/08/09 18:46:04 dmarlin Exp $
+ *
+ * Copyright (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> et al.
+ *
+ * Released under GPL
+ */
+
+#ifndef __MTD_MTD_H__
+#define __MTD_MTD_H__
+
+#ifndef __KERNEL__
+#error This is a kernel header. Perhaps include mtd-user.h instead?
+#endif
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/uio.h>
+
+#include <linux/mtd/compatmac.h>
+#include <mtd/mtd-abi.h>
+
+#define MTD_CHAR_MAJOR 90
+#define MTD_BLOCK_MAJOR 31
+#define MAX_MTD_DEVICES 16
+
+#define MTD_ERASE_PENDING       0x01
+#define MTD_ERASING             0x02
+#define MTD_ERASE_SUSPEND       0x04
+#define MTD_ERASE_DONE          0x08
+#define MTD_ERASE_FAILED        0x10
+
+/* If the erase fails, fail_addr might indicate exactly which block failed.  If
+   fail_addr = 0xffffffff, the failure was not at the device level or was not
+   specific to any particular block. */
+struct erase_info {
+        struct mtd_info *mtd;
+        u_int32_t addr;
+        u_int32_t len;
+        u_int32_t fail_addr;
+        u_long time;
+        u_long retries;
+        u_int dev;
+        u_int cell;
+        void (*callback) (struct erase_info *self);
+        u_long priv;
+        u_char state;
+        struct erase_info *next;
+};
+
+struct mtd_erase_region_info {
+        u_int32_t offset;                       /* At which this region starts, from the beginning of the MTD */
+        u_int32_t erasesize;            /* For this region */
+        u_int32_t numblocks;            /* Number of blocks of erasesize in this region */
+};
+
+struct mtd_info {
+        u_char type;
+        u_int32_t flags;
+        u_int32_t size;  // Total size of the MTD
+
+        /* "Major" erase size for the device. Naïve users may take this
+         * to be the only erase size available, or may use the more detailed
+         * information below if they desire
+         */
+        u_int32_t erasesize;
+
+        u_int32_t oobblock;  // Size of OOB blocks (e.g. 512)
+        u_int32_t oobsize;   // Amount of OOB data per block (e.g. 16)
+        u_int32_t oobavail;  // Number of bytes in OOB area available for fs 
+        u_int32_t ecctype;
+        u_int32_t eccsize;
+        
+
+        // Kernel-only stuff starts here.
+        char *name;
+        int index;
+
+        // oobinfo is a nand_oobinfo structure, which can be set by iotcl (MEMSETOOBINFO)
+        struct nand_oobinfo oobinfo;
+
+        /* Data for variable erase regions. If numeraseregions is zero,
+         * it means that the whole device has erasesize as given above. 
+         */
+        int numeraseregions;
+        struct mtd_erase_region_info *eraseregions; 
+
+        /* This really shouldn't be here. It can go away in 2.5 */
+        u_int32_t bank_size;
+
+        int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
+
+        /* This stuff for eXecute-In-Place */
+        int (*point) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf);
+
+        /* We probably shouldn't allow XIP if the unpoint isn't a NULL */
+        void (*unpoint) (struct mtd_info *mtd, u_char * addr, loff_t from, size_t len);
+
+
+        int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+        int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+
+        int (*read_ecc) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
+        int (*write_ecc) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
+
+        int (*read_oob) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+        int (*write_oob) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+
+        /* 
+         * Methods to access the protection register area, present in some 
+         * flash devices. The user data is one time programmable but the
+         * factory data is read only. 
+         */
+        int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+        int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+        /* This function is not yet implemented */
+        int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+        /* kvec-based read/write methods. We need these especially for NAND flash,
+           with its limited number of write cycles per erase.
+           NB: The 'count' parameter is the number of _vectors_, each of 
+           which contains an (ofs, len) tuple.
+        */
+        int (*readv) (struct mtd_info *mtd, struct kvec *vecs, unsigned long count, loff_t from, size_t *retlen);
+        int (*readv_ecc) (struct mtd_info *mtd, struct kvec *vecs, unsigned long count, loff_t from, 
+                size_t *retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
+        int (*writev) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen);
+        int (*writev_ecc) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, 
+                size_t *retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
+
+        /* Sync */
+        void (*sync) (struct mtd_info *mtd);
+
+        /* Chip-supported device locking */
+        int (*lock) (struct mtd_info *mtd, loff_t ofs, size_t len);
+        int (*unlock) (struct mtd_info *mtd, loff_t ofs, size_t len);
+
+        /* Power Management functions */
+        int (*suspend) (struct mtd_info *mtd);
+        void (*resume) (struct mtd_info *mtd);
+
+        /* Bad block management functions */
+        int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
+        int (*block_markbad) (struct mtd_info *mtd, loff_t ofs);
+
+        void *priv;
+
+        struct module *owner;
+        int usecount;
+};
+
+
+        /* Kernel-side ioctl definitions */
+
+extern int add_mtd_device(struct mtd_info *mtd);
+extern int del_mtd_device (struct mtd_info *mtd);
+
+extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num);
+
+extern void put_mtd_device(struct mtd_info *mtd);
+
+
+struct mtd_notifier {
+        void (*add)(struct mtd_info *mtd);
+        void (*remove)(struct mtd_info *mtd);
+        struct list_head list;
+};
+
+
+extern void register_mtd_user (struct mtd_notifier *new);
+extern int unregister_mtd_user (struct mtd_notifier *old);
+
+int default_mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
+                       unsigned long count, loff_t to, size_t *retlen);
+
+int default_mtd_readv(struct mtd_info *mtd, struct kvec *vecs,
+                      unsigned long count, loff_t from, size_t *retlen);
+
+#define MTD_ERASE(mtd, args...) (*(mtd->erase))(mtd, args)
+#define MTD_POINT(mtd, a,b,c,d) (*(mtd->point))(mtd, a,b,c, (u_char **)(d))
+#define MTD_UNPOINT(mtd, arg) (*(mtd->unpoint))(mtd, (u_char *)arg)
+#define MTD_READ(mtd, args...) (*(mtd->read))(mtd, args)
+#define MTD_WRITE(mtd, args...) (*(mtd->write))(mtd, args)
+#define MTD_READV(mtd, args...) (*(mtd->readv))(mtd, args)
+#define MTD_WRITEV(mtd, args...) (*(mtd->writev))(mtd, args)
+#define MTD_READECC(mtd, args...) (*(mtd->read_ecc))(mtd, args)
+#define MTD_WRITEECC(mtd, args...) (*(mtd->write_ecc))(mtd, args)
+#define MTD_READOOB(mtd, args...) (*(mtd->read_oob))(mtd, args)
+#define MTD_WRITEOOB(mtd, args...) (*(mtd->write_oob))(mtd, args)
+#define MTD_SYNC(mtd) do { if (mtd->sync) (*(mtd->sync))(mtd);  } while (0) 
+
+
+#ifdef CONFIG_MTD_PARTITIONS
+void mtd_erase_callback(struct erase_info *instr);
+#else
+static inline void mtd_erase_callback(struct erase_info *instr)
+{
+        if (instr->callback)
+                instr->callback(instr);
+}
+#endif
+
+/*
+ * Debugging macro and defines
+ */
+#define MTD_DEBUG_LEVEL0        (0)     /* Quiet   */
+#define MTD_DEBUG_LEVEL1        (1)     /* Audible */
+#define MTD_DEBUG_LEVEL2        (2)     /* Loud    */
+#define MTD_DEBUG_LEVEL3        (3)     /* Noisy   */
+
+#ifdef CONFIG_MTD_DEBUG
+#define DEBUG(n, args...)                               \
+        do {                                            \
+                if (n <= CONFIG_MTD_DEBUG_VERBOSE)      \
+                        printk(KERN_INFO args);         \
+        } while(0)
+#else /* CONFIG_MTD_DEBUG */
+#define DEBUG(n, args...) do { } while(0)
+
+#endif /* CONFIG_MTD_DEBUG */
+
+#endif /* __MTD_MTD_H__ */