* Fix CONFIG_NET_MULTI support in include/net.h

* Patches by Kyle Harris, 13 Mar 2003:
  - Add FAT partition support
  - Add command support for FAT
  - Add command support for MMC
  ----
  - Add Intel PXA support for video
  - Add Intel PXA support for MMC
  ----
  - Enable MMC and FAT for lubbock board
  - Other misc changes for lubbock board

1 files changed, 208 insertions, 0 deletions

diff --git a/include/fat.h b/include/fat.h
new file mode 100644
index 0000000..b56219c
--- /dev/null
+++ b/include/fat.h
@@ -0,0 +1,208 @@
+/*
+ * R/O (V)FAT 12/16/32 filesystem implementation by Marcus Sundberg
+ *
+ * 2002-07-28 - rjones@nexus-tech.net - ported to ppcboot v1.1.6
+ * 2003-03-10 - kharris@nexus-tech.net - ported to u-boot
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#ifndef _FAT_H_
+#define _FAT_H_
+
+#define CONFIG_SUPPORT_VFAT
+
+#define SECTOR_SIZE FS_BLOCK_SIZE
+
+#define FS_BLOCK_SIZE 512
+
+#if FS_BLOCK_SIZE != SECTOR_SIZE
+#error FS_BLOCK_SIZE != SECTOR_SIZE - This code needs to be fixed!
+#endif
+
+#define MAX_CLUSTSIZE	65536
+#define DIRENTSPERBLOCK	(FS_BLOCK_SIZE/sizeof(dir_entry))
+#define DIRENTSPERCLUST	((mydata->clust_size*SECTOR_SIZE)/sizeof(dir_entry))
+
+#define FATBUFBLOCKS	6
+#define FATBUFSIZE	(FS_BLOCK_SIZE*FATBUFBLOCKS)
+#define FAT12BUFSIZE	((FATBUFSIZE*3)/2)
+#define FAT16BUFSIZE	(FATBUFSIZE/2)
+#define FAT32BUFSIZE	(FATBUFSIZE/4)
+
+
+/* Filesystem identifiers */
+#define FAT12_SIGN	"FAT12   "
+#define FAT16_SIGN	"FAT16   "
+#define FAT32_SIGN	"FAT32   "
+#define SIGNLEN		8
+
+/* File attributes */
+#define ATTR_RO      1
+#define ATTR_HIDDEN  2
+#define ATTR_SYS     4
+#define ATTR_VOLUME  8
+#define ATTR_DIR     16
+#define ATTR_ARCH    32
+
+#define ATTR_VFAT     (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
+
+#define DELETED_FLAG	((char)0xe5) /* Marks deleted files when in name[0] */
+#define aRING		0x05	     /* Used to represent 'å' in name[0] */
+
+
+/* Flags telling whether we should read a file or list a directory */
+#define LS_NO	0
+#define LS_YES	1
+#define LS_DIR	1
+#define LS_ROOT	2
+
+#ifdef DEBUG
+#define FAT_DPRINT(args...)	printf(args)
+#else
+#define FAT_DPRINT(args...)
+#endif
+#define FAT_ERROR(arg)		printf(arg)
+
+#define ISDIRDELIM(c)   ((c) == '/' || (c) == '\\')
+
+#define FSTYPE_NONE	(-1)
+
+#if defined(__linux__) && defined(__KERNEL__)
+#define FAT2CPU16	le16_to_cpu
+#define FAT2CPU32	le32_to_cpu
+#else
+#if 1
+#define FAT2CPU16(x)	(x)
+#define FAT2CPU32(x)	(x)
+#else
+#define FAT2CPU16(x)	((((x) & 0x00ff) << 8) | (((x) & 0xff00) >> 8))
+#define FAT2CPU32(x)	((((x) & 0x000000ff) << 24)  |	\
+	 		 (((x) & 0x0000ff00) << 8)  |	\
+			 (((x) & 0x00ff0000) >> 8)  |	\
+			 (((x) & 0xff000000) >> 24))
+#endif
+#endif
+
+#define TOLOWER(c)	if((c) >= 'A' && (c) <= 'Z'){(c)+=('a' - 'A');}
+#define START(dent)	(FAT2CPU16((dent)->start) \
+			+ (mydata->fatsize != 32 ? 0 : \
+			  (FAT2CPU16((dent)->starthi) << 16)))
+
+
+typedef struct boot_sector {
+	__u8	ignored[3];	/* Bootstrap code */
+	char	system_id[8];	/* Name of fs */
+	__u8	sector_size[2];	/* Bytes/sector */
+	__u8	cluster_size;	/* Sectors/cluster */
+	__u16	reserved;	/* Number of reserved sectors */
+	__u8	fats;		/* Number of FATs */
+	__u8	dir_entries[2];	/* Number of root directory entries */
+	__u8	sectors[2];	/* Number of sectors */
+	__u8	media;		/* Media code */
+	__u16	fat_length;	/* Sectors/FAT */
+	__u16	secs_track;	/* Sectors/track */
+	__u16	heads;		/* Number of heads */
+	__u32	hidden;		/* Number of hidden sectors */
+	__u32	total_sect;	/* Number of sectors (if sectors == 0) */
+
+	/* FAT32 only */
+	__u32	fat32_length;	/* Sectors/FAT */
+	__u16	flags;		/* Bit 8: fat mirroring, low 4: active fat */
+	__u8	version[2];	/* Filesystem version */
+	__u32	root_cluster;	/* First cluster in root directory */
+	__u16	info_sector;	/* Filesystem info sector */
+	__u16	backup_boot;	/* Backup boot sector */
+	__u16	reserved2[6];	/* Unused */
+} boot_sector;
+
+typedef struct volume_info
+{
+	__u8 drive_number;	/* BIOS drive number */
+	__u8 reserved;		/* Unused */
+	__u8 ext_boot_sign;	/* 0x29 if fields below exist (DOS 3.3+) */
+	__u8 volume_id[4];	/* Volume ID number */
+	char volume_label[11];	/* Volume label */
+	char fs_type[8];	/* Typically FAT12, FAT16, or FAT32 */
+	/* Boot code comes next, all but 2 bytes to fill up sector */
+	/* Boot sign comes last, 2 bytes */
+} volume_info;
+
+typedef struct dir_entry {
+	char	name[8],ext[3];	/* Name and extension */
+	__u8	attr;		/* Attribute bits */
+	__u8	lcase;		/* Case for base and extension */
+	__u8	ctime_ms;	/* Creation time, milliseconds */
+	__u16	ctime;		/* Creation time */
+	__u16	cdate;		/* Creation date */
+	__u16	adate;		/* Last access date */
+	__u16	starthi;	/* High 16 bits of cluster in FAT32 */
+	__u16	time,date,start;/* Time, date and first cluster */
+	__u32	size;		/* File size in bytes */
+} dir_entry;
+
+typedef struct dir_slot {
+	__u8    id;		/* Sequence number for slot */
+	__u8    name0_4[10];	/* First 5 characters in name */
+	__u8    attr;		/* Attribute byte */
+	__u8    reserved;	/* Unused */
+	__u8    alias_checksum;/* Checksum for 8.3 alias */
+	__u8    name5_10[12];	/* 6 more characters in name */
+	__u16   start;		/* Unused */
+	__u8    name11_12[4];	/* Last 2 characters in name */
+} dir_slot;
+
+/* Private filesystem parameters */
+typedef struct {
+	int	fatsize;	/* Size of FAT in bits */
+	__u16	fatlength;	/* Length of FAT in sectors */
+	__u16	fat_sect;	/* Starting sector of the FAT */
+	__u16	rootdir_sect;	/* Start sector of root directory */
+	__u16	clust_size;	/* Size of clusters in sectors */
+	__u16	data_begin;	/* The sector of the first cluster */
+	__u8	fatbuf[FATBUFSIZE]; /* Current FAT buffer */
+	int	fatbufnum;	/* Used by get_fatent, init to -1 */
+} fsdata;
+
+typedef int	(file_detectfs_func)(void);
+typedef int	(file_ls_func)(const char *dir);
+typedef long	(file_read_func)(const char *filename, void *buffer,
+				 unsigned long maxsize);
+
+struct filesystem {
+	file_detectfs_func *detect;
+	file_ls_func	   *ls;
+	file_read_func	   *read;
+	const char	    name[12];
+};
+
+/* FAT tables */
+file_detectfs_func	file_fat_detectfs;
+file_ls_func		file_fat_ls;
+file_read_func		file_fat_read;
+
+/* Currently this doesn't check if the dir exists or is valid... */
+int file_cd(const char *path);
+int file_fat_detectfs(void);
+int file_fat_ls(const char *dir);
+long file_fat_read(const char *filename, void *buffer, unsigned long maxsize);
+const char *file_getfsname(int idx);
+
+#endif /* _FAT_H_ */