Initial revision

2 files changed, 316 insertions, 0 deletions

diff --git a/include/linux/mtd/doc2000.h b/include/linux/mtd/doc2000.h
new file mode 100644
index 0000000..c703f77
--- /dev/null
+++ b/include/linux/mtd/doc2000.h
@@ -0,0 +1,158 @@
+
+/* Linux driver for Disk-On-Chip 2000       */
+/* (c) 1999 Machine Vision Holdings, Inc.   */
+/* Author: David Woodhouse <dwmw2@mvhi.com> */
+/* $Id: doc2000.h,v 1.15 2001/09/19 00:22:15 dwmw2 Exp $ */
+
+#ifndef __MTD_DOC2000_H__
+#define __MTD_DOC2000_H__
+
+struct DiskOnChip;
+
+#include <linux/mtd/nftl.h>
+
+#define DoC_Sig1 0
+#define DoC_Sig2 1
+
+#define DoC_ChipID		0x1000
+#define DoC_DOCStatus		0x1001
+#define DoC_DOCControl		0x1002
+#define DoC_FloorSelect		0x1003
+#define DoC_CDSNControl		0x1004
+#define DoC_CDSNDeviceSelect 	0x1005
+#define DoC_ECCConf 		0x1006
+#define DoC_2k_ECCStatus	0x1007
+
+#define DoC_CDSNSlowIO		0x100d
+#define DoC_ECCSyndrome0	0x1010
+#define DoC_ECCSyndrome1	0x1011
+#define DoC_ECCSyndrome2	0x1012
+#define DoC_ECCSyndrome3	0x1013
+#define DoC_ECCSyndrome4	0x1014
+#define DoC_ECCSyndrome5	0x1015
+#define DoC_AliasResolution 	0x101b
+#define DoC_ConfigInput		0x101c
+#define DoC_ReadPipeInit 	0x101d
+#define DoC_WritePipeTerm 	0x101e
+#define DoC_LastDataRead 	0x101f
+#define DoC_NOP 		0x1020
+
+#define DoC_Mil_CDSN_IO 	0x0800
+#define DoC_2k_CDSN_IO 		0x1800
+
+#define ReadDOC_(adr, reg)      ((volatile unsigned char)(*(volatile __u8 *)(((unsigned long)adr)+((reg)))))
+#define WriteDOC_(d, adr, reg)  do{ *(volatile __u8 *)(((unsigned long)adr)+((reg))) = (__u8)d; eieio();} while(0)
+
+#define DOC_IOREMAP_LEN		0x4000
+
+/* These are provided to directly use the DoC_xxx defines */
+#define ReadDOC(adr, reg)      ReadDOC_(adr,DoC_##reg)
+#define WriteDOC(d, adr, reg)  WriteDOC_(d,adr,DoC_##reg)
+
+#define DOC_MODE_RESET 		0
+#define DOC_MODE_NORMAL 	1
+#define DOC_MODE_RESERVED1 	2
+#define DOC_MODE_RESERVED2 	3
+
+#define DOC_MODE_MDWREN 	4
+#define DOC_MODE_CLR_ERR 	0x80
+
+#define DOC_ChipID_UNKNOWN 	0x00
+#define DOC_ChipID_Doc2k 	0x20
+#define DOC_ChipID_DocMil 	0x30
+
+#define CDSN_CTRL_FR_B 		0x80
+#define CDSN_CTRL_ECC_IO 	0x20
+#define CDSN_CTRL_FLASH_IO 	0x10
+#define CDSN_CTRL_WP 		0x08
+#define CDSN_CTRL_ALE 		0x04
+#define CDSN_CTRL_CLE 		0x02
+#define CDSN_CTRL_CE 		0x01
+
+#define DOC_ECC_RESET 		0
+#define DOC_ECC_ERROR 		0x80
+#define DOC_ECC_RW 		0x20
+#define DOC_ECC__EN 		0x08
+#define DOC_TOGGLE_BIT 		0x04
+#define DOC_ECC_RESV 		0x02
+#define DOC_ECC_IGNORE		0x01
+
+/* We have to also set the reserved bit 1 for enable */
+#define DOC_ECC_EN (DOC_ECC__EN | DOC_ECC_RESV)
+#define DOC_ECC_DIS (DOC_ECC_RESV)
+
+struct Nand {
+	char floor, chip;
+	unsigned long curadr;
+	unsigned char curmode;
+	/* Also some erase/write/pipeline info when we get that far */
+};
+
+#define MAX_FLOORS 4
+#define MAX_CHIPS 4
+
+#define MAX_FLOORS_MIL 4
+#define MAX_CHIPS_MIL 1
+
+#define ADDR_COLUMN 1
+#define ADDR_PAGE 2
+#define ADDR_COLUMN_PAGE 3
+
+struct DiskOnChip {
+	unsigned long physadr;
+	unsigned long virtadr;
+	unsigned long totlen;
+	char* name;
+	char ChipID; /* Type of DiskOnChip */
+	int ioreg;
+
+	char* chips_name;
+	unsigned long mfr; /* Flash IDs - only one type of flash per device */
+	unsigned long id;
+	int chipshift;
+	char page256;
+	char pageadrlen;
+	unsigned long erasesize;
+
+	int curfloor;
+	int curchip;
+
+	int numchips;
+	struct Nand *chips;
+
+	int nftl_found;
+	struct NFTLrecord nftl;
+};
+
+#define SECTORSIZE 512
+
+/* Return codes from doc_write(), doc_read(), and doc_erase().
+ */
+#define DOC_OK		0
+#define DOC_EIO		1
+#define DOC_EINVAL	2
+#define DOC_EECC	3
+#define DOC_ETIMEOUT	4
+
+/*
+ * Function Prototypes
+ */
+int doc_decode_ecc(unsigned char sector[512], unsigned char ecc1[6]);
+
+int doc_rw(struct DiskOnChip* this, int cmd, loff_t from, size_t len,
+	   size_t *retlen, u_char *buf);
+int doc_read_ecc(struct DiskOnChip* this, loff_t from, size_t len,
+		 size_t *retlen, u_char *buf, u_char *eccbuf);
+int doc_write_ecc(struct DiskOnChip* this, loff_t to, size_t len,
+		  size_t *retlen, const u_char *buf, u_char *eccbuf);
+int doc_read_oob(struct DiskOnChip* this, loff_t ofs, size_t len,
+		 size_t *retlen, u_char *buf);
+int doc_write_oob(struct DiskOnChip* this, loff_t ofs, size_t len,
+		  size_t *retlen, const u_char *buf);
+int doc_erase (struct DiskOnChip* this, loff_t ofs, size_t len);
+
+void doc_probe(unsigned long physadr);
+
+void doc_print(struct DiskOnChip*);
+
+#endif /* __MTD_DOC2000_H__ */
diff --git a/include/linux/time.h b/include/linux/time.h
new file mode 100644
index 0000000..bf12b99
--- /dev/null
+++ b/include/linux/time.h
@@ -0,0 +1,158 @@
+#ifndef _LINUX_TIME_H
+#define _LINUX_TIME_H
+
+#include <linux/types.h>
+
+#define _DEFUN(a,b,c) a(c)
+#define _CONST const
+#define _AND ,
+
+#define _REENT_ONLY
+
+#define SECSPERMIN	60L
+#define MINSPERHOUR	60L
+#define HOURSPERDAY	24L
+#define SECSPERHOUR	(SECSPERMIN * MINSPERHOUR)
+#define SECSPERDAY	(SECSPERHOUR * HOURSPERDAY)
+#define DAYSPERWEEK	7
+#define MONSPERYEAR	12
+
+#define YEAR_BASE	1900
+#define EPOCH_YEAR      1970
+#define EPOCH_WDAY      4
+
+#define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
+
+
+/* Used by other time functions.  */
+struct tm {
+    int tm_sec;                   /* Seconds.     [0-60] (1 leap second) */
+    int tm_min;                   /* Minutes.     [0-59] */
+    int tm_hour;                  /* Hours.       [0-23] */
+    int tm_mday;                  /* Day.         [1-31] */
+    int tm_mon;                   /* Month.       [0-11] */
+    int tm_year;                  /* Year - 1900.  */
+    int tm_wday;                  /* Day of week. [0-6] */
+    int tm_yday;                  /* Days in year.[0-365] */
+    int tm_isdst;                 /* DST.         [-1/0/1]*/
+
+# ifdef __USE_BSD
+    long int tm_gmtoff;           /* Seconds east of UTC.  */
+    __const char *tm_zone;        /* Timezone abbreviation.  */
+# else
+    long int __tm_gmtoff;         /* Seconds east of UTC.  */
+    __const char *__tm_zone;      /* Timezone abbreviation.  */
+# endif
+};
+
+static inline char *
+_DEFUN (asctime_r, (tim_p, result),
+	_CONST struct tm *tim_p _AND
+	char *result)
+{
+    static _CONST char day_name[7][3] = {
+	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+    };
+    static _CONST char mon_name[12][3] = {
+	"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+	"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+    };
+
+    sprintf (result, "%.3s %.3s %.2d %.2d:%.2d:%.2d %d\n",
+	    day_name[tim_p->tm_wday],
+	    mon_name[tim_p->tm_mon],
+	    tim_p->tm_mday, tim_p->tm_hour, tim_p->tm_min,
+	    tim_p->tm_sec, 1900 + tim_p->tm_year);
+    return result;
+}
+
+static inline struct tm *
+_DEFUN (localtime_r, (tim_p, res),
+	_CONST time_t * tim_p _AND
+	struct tm *res)
+{
+    static _CONST int mon_lengths[2][MONSPERYEAR] = {
+      {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
+      {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
+    } ;
+
+    static _CONST int year_lengths[2] = {
+      365,
+      366
+    } ;
+
+    long days, rem;
+    int y;
+    int yleap;
+    _CONST int *ip;
+
+    days = ((long) *tim_p) / SECSPERDAY;
+    rem = ((long) *tim_p) % SECSPERDAY;
+    while (rem < 0)
+    {
+	rem += SECSPERDAY;
+	--days;
+    }
+    while (rem >= SECSPERDAY)
+    {
+	rem -= SECSPERDAY;
+	++days;
+    }
+
+    /* compute hour, min, and sec */
+    res->tm_hour = (int) (rem / SECSPERHOUR);
+    rem %= SECSPERHOUR;
+    res->tm_min = (int) (rem / SECSPERMIN);
+    res->tm_sec = (int) (rem % SECSPERMIN);
+
+    /* compute day of week */
+    if ((res->tm_wday = ((EPOCH_WDAY + days) % DAYSPERWEEK)) < 0)
+	res->tm_wday += DAYSPERWEEK;
+
+    /* compute year & day of year */
+    y = EPOCH_YEAR;
+    if (days >= 0)
+    {
+	for (;;)
+	{
+	    yleap = isleap(y);
+	    if (days < year_lengths[yleap])
+		break;
+	    y++;
+	    days -= year_lengths[yleap];
+	}
+    }
+    else
+    {
+	do
+	{
+	    --y;
+	    yleap = isleap(y);
+	    days += year_lengths[yleap];
+	} while (days < 0);
+    }
+
+    res->tm_year = y - YEAR_BASE;
+    res->tm_yday = days;
+    ip = mon_lengths[yleap];
+    for (res->tm_mon = 0; days >= ip[res->tm_mon]; ++res->tm_mon)
+	days -= ip[res->tm_mon];
+    res->tm_mday = days + 1;
+
+    /* set daylight saving time flag */
+    res->tm_isdst = -1;
+
+    return (res);
+}
+
+static inline char *
+_DEFUN (ctime_r, (tim_p, result),
+	_CONST time_t * tim_p _AND
+	char * result)
+
+{
+    struct tm tm;
+    return asctime_r (localtime_r (tim_p, &tm), result);
+}
+
+#endif