u-boot: Update yaffs2 file system

This patch updates the yaffs2 in u-boot to correspond to
git://www.aleph1.co.uk/yaffs2
commit id 9ee5d0643e559568dbe62215f76e0a7bd5a63d93

Signed-off-by: Charles Manning <cdhmanning@gmail.com>

1 files changed, 464 insertions, 0 deletions

diff --git a/fs/yaffs2/yaffs_uboot_glue.c b/fs/yaffs2/yaffs_uboot_glue.c
new file mode 100644
index 0000000..e113e40
--- /dev/null
+++ b/fs/yaffs2/yaffs_uboot_glue.c
@@ -0,0 +1,464 @@
+/*
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2007 Aleph One Ltd.
+ *   for Toby Churchill Ltd and Brightstar Engineering
+ *
+ * Created by Charles Manning <charles@aleph1.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * yaffscfg.c  The configuration for the "direct" use of yaffs.
+ *
+ * This is set up for u-boot.
+ *
+ * This version now uses the ydevconfig mechanism to set up partitions.
+ */
+
+#include <common.h>
+
+#include <config.h>
+#include "nand.h"
+#include "yaffscfg.h"
+#include "yaffsfs.h"
+#include "yaffs_packedtags2.h"
+#include "yaffs_mtdif.h"
+#include "yaffs_mtdif2.h"
+#if 0
+#include <errno.h>
+#else
+#include "malloc.h"
+#endif
+
+unsigned yaffs_trace_mask = 0x0; /* Disable logging */
+static int yaffs_errno;
+
+
+void yaffs_bug_fn(const char *fn, int n)
+{
+	printf("yaffs bug at %s:%d\n", fn, n);
+}
+
+void *yaffsfs_malloc(size_t x)
+{
+	return malloc(x);
+}
+
+void yaffsfs_free(void *x)
+{
+	free(x);
+}
+
+void yaffsfs_SetError(int err)
+{
+	yaffs_errno = err;
+}
+
+int yaffsfs_GetLastError(void)
+{
+	return yaffs_errno;
+}
+
+
+int yaffsfs_GetError(void)
+{
+	return yaffs_errno;
+}
+
+void yaffsfs_Lock(void)
+{
+}
+
+void yaffsfs_Unlock(void)
+{
+}
+
+__u32 yaffsfs_CurrentTime(void)
+{
+	return 0;
+}
+
+void *yaffs_malloc(size_t size)
+{
+	return malloc(size);
+}
+
+void yaffs_free(void *ptr)
+{
+	free(ptr);
+}
+
+void yaffsfs_LocalInitialisation(void)
+{
+	/* No locking used */
+}
+
+
+static const char *yaffs_file_type_str(struct yaffs_stat *stat)
+{
+	switch (stat->st_mode & S_IFMT) {
+	case S_IFREG: return "regular file";
+	case S_IFDIR: return "directory";
+	case S_IFLNK: return "symlink";
+	default: return "unknown";
+	}
+}
+
+static const char *yaffs_error_str(void)
+{
+	int error = yaffsfs_GetLastError();
+
+	if (error < 0)
+		error = -error;
+
+	switch (error) {
+	case EBUSY: return "Busy";
+	case ENODEV: return "No such device";
+	case EINVAL: return "Invalid parameter";
+	case ENFILE: return "Too many open files";
+	case EBADF:  return "Bad handle";
+	case EACCES: return "Wrong permissions";
+	case EXDEV:  return "Not on same device";
+	case ENOENT: return "No such entry";
+	case ENOSPC: return "Device full";
+	case EROFS:  return "Read only file system";
+	case ERANGE: return "Range error";
+	case ENOTEMPTY: return "Not empty";
+	case ENAMETOOLONG: return "Name too long";
+	case ENOMEM: return "Out of memory";
+	case EFAULT: return "Fault";
+	case EEXIST: return "Name exists";
+	case ENOTDIR: return "Not a directory";
+	case EISDIR: return "Not permitted on a directory";
+	case ELOOP:  return "Symlink loop";
+	case 0: return "No error";
+	default: return "Unknown error";
+	}
+}
+
+extern nand_info_t nand_info[];
+
+void cmd_yaffs_tracemask(unsigned set, unsigned mask)
+{
+	if (set)
+		yaffs_trace_mask = mask;
+
+	printf("yaffs trace mask: %08x\n", yaffs_trace_mask);
+}
+
+static int yaffs_regions_overlap(int a, int b, int x, int y)
+{
+	return	(a <= x && x <= b) ||
+		(a <= y && y <= b) ||
+		(x <= a && a <= y) ||
+		(x <= b && b <= y);
+}
+
+void cmd_yaffs_devconfig(char *_mp, int flash_dev,
+			int start_block, int end_block)
+{
+	struct mtd_info *mtd = NULL;
+	struct yaffs_dev *dev = NULL;
+	struct yaffs_dev *chk;
+	char *mp = NULL;
+	struct nand_chip *chip;
+
+	dev = calloc(1, sizeof(*dev));
+	mp = strdup(_mp);
+
+	mtd = &nand_info[flash_dev];
+
+	if (!dev || !mp) {
+		/* Alloc error */
+		printf("Failed to allocate memory\n");
+		goto err;
+	}
+
+	if (flash_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
+		printf("Flash device invalid\n");
+		goto err;
+	}
+
+	if (end_block == 0)
+		end_block = mtd->size / mtd->erasesize - 1;
+
+	if (end_block < start_block) {
+		printf("Bad start/end\n");
+		goto err;
+	}
+
+	chip =  mtd->priv;
+
+	/* Check for any conflicts */
+	yaffs_dev_rewind();
+	while (1) {
+		chk = yaffs_next_dev();
+		if (!chk)
+			break;
+		if (strcmp(chk->param.name, mp) == 0) {
+			printf("Mount point name already used\n");
+			goto err;
+		}
+		if (chk->driver_context == mtd &&
+			yaffs_regions_overlap(
+				chk->param.start_block, chk->param.end_block,
+				start_block, end_block)) {
+			printf("Region overlaps with partition %s\n",
+				chk->param.name);
+			goto err;
+		}
+
+	}
+
+	/* Seems sane, so configure */
+	memset(dev, 0, sizeof(*dev));
+	dev->param.name = mp;
+	dev->driver_context = mtd;
+	dev->param.start_block = start_block;
+	dev->param.end_block = end_block;
+	dev->param.chunks_per_block = mtd->erasesize / mtd->writesize;
+	dev->param.total_bytes_per_chunk = mtd->writesize;
+	dev->param.is_yaffs2 = 1;
+	dev->param.use_nand_ecc = 1;
+	dev->param.n_reserved_blocks = 5;
+	if (chip->ecc.layout->oobavail < sizeof(struct yaffs_packed_tags2))
+		dev->param.inband_tags = 1;
+	dev->param.n_caches = 10;
+	dev->param.write_chunk_tags_fn = nandmtd2_write_chunk_tags;
+	dev->param.read_chunk_tags_fn = nandmtd2_read_chunk_tags;
+	dev->param.erase_fn = nandmtd_EraseBlockInNAND;
+	dev->param.initialise_flash_fn = nandmtd_InitialiseNAND;
+	dev->param.bad_block_fn = nandmtd2_MarkNANDBlockBad;
+	dev->param.query_block_fn = nandmtd2_QueryNANDBlock;
+
+	yaffs_add_device(dev);
+
+	printf("Configures yaffs mount %s: dev %d start block %d, end block %d %s\n",
+		mp, flash_dev, start_block, end_block,
+		dev->param.inband_tags ? "using inband tags" : "");
+	return;
+
+err:
+	free(dev);
+	free(mp);
+}
+
+void cmd_yaffs_dev_ls(void)
+{
+	struct yaffs_dev *dev;
+	int flash_dev;
+	int free_space;
+
+	yaffs_dev_rewind();
+
+	while (1) {
+		dev = yaffs_next_dev();
+		if (!dev)
+			return;
+		flash_dev =
+			((unsigned) dev->driver_context - (unsigned) nand_info)/
+				sizeof(nand_info[0]);
+		printf("%-10s %5d 0x%05x 0x%05x %s",
+			dev->param.name, flash_dev,
+			dev->param.start_block, dev->param.end_block,
+			dev->param.inband_tags ? "using inband tags, " : "");
+
+		free_space = yaffs_freespace(dev->param.name);
+		if (free_space < 0)
+			printf("not mounted\n");
+		else
+			printf("free 0x%x\n", free_space);
+
+	}
+}
+
+void make_a_file(char *yaffsName, char bval, int sizeOfFile)
+{
+	int outh;
+	int i;
+	unsigned char buffer[100];
+
+	outh = yaffs_open(yaffsName,
+				O_CREAT | O_RDWR | O_TRUNC,
+				S_IREAD | S_IWRITE);
+	if (outh < 0) {
+		printf("Error opening file: %d. %s\n", outh, yaffs_error_str());
+		return;
+	}
+
+	memset(buffer, bval, 100);
+
+	do {
+		i = sizeOfFile;
+		if (i > 100)
+			i = 100;
+		sizeOfFile -= i;
+
+		yaffs_write(outh, buffer, i);
+
+	} while (sizeOfFile > 0);
+
+
+	yaffs_close(outh);
+}
+
+void read_a_file(char *fn)
+{
+	int h;
+	int i = 0;
+	unsigned char b;
+
+	h = yaffs_open(fn, O_RDWR, 0);
+	if (h < 0) {
+		printf("File not found\n");
+		return;
+	}
+
+	while (yaffs_read(h, &b, 1) > 0) {
+		printf("%02x ", b);
+		i++;
+		if (i > 32) {
+			printf("\n");
+			i = 0;;
+		}
+	}
+	printf("\n");
+	yaffs_close(h);
+}
+
+void cmd_yaffs_mount(char *mp)
+{
+	int retval = yaffs_mount(mp);
+	if (retval < 0)
+		printf("Error mounting %s, return value: %d, %s\n", mp,
+			yaffsfs_GetError(), yaffs_error_str());
+}
+
+
+void cmd_yaffs_umount(char *mp)
+{
+	if (yaffs_unmount(mp) == -1)
+		printf("Error umounting %s, return value: %d, %s\n", mp,
+			yaffsfs_GetError(), yaffs_error_str());
+}
+
+void cmd_yaffs_write_file(char *yaffsName, char bval, int sizeOfFile)
+{
+	make_a_file(yaffsName, bval, sizeOfFile);
+}
+
+
+void cmd_yaffs_read_file(char *fn)
+{
+	read_a_file(fn);
+}
+
+
+void cmd_yaffs_mread_file(char *fn, char *addr)
+{
+	int h;
+	struct yaffs_stat s;
+
+	yaffs_stat(fn, &s);
+
+	printf("Copy %s to 0x%p... ", fn, addr);
+	h = yaffs_open(fn, O_RDWR, 0);
+	if (h < 0) {
+		printf("File not found\n");
+		return;
+	}
+
+	yaffs_read(h, addr, (int)s.st_size);
+	printf("\t[DONE]\n");
+
+	yaffs_close(h);
+}
+
+
+void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
+{
+	int outh;
+
+	outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
+	if (outh < 0)
+		printf("Error opening file: %d, %s\n", outh, yaffs_error_str());
+
+	yaffs_write(outh, addr, size);
+
+	yaffs_close(outh);
+}
+
+
+void cmd_yaffs_ls(const char *mountpt, int longlist)
+{
+	int i;
+	yaffs_DIR *d;
+	struct yaffs_dirent *de;
+	struct yaffs_stat stat;
+	char tempstr[255];
+
+	d = yaffs_opendir(mountpt);
+
+	if (!d) {
+		printf("opendir failed, %s\n", yaffs_error_str());
+		return;
+	}
+
+	for (i = 0; (de = yaffs_readdir(d)) != NULL; i++) {
+		if (longlist) {
+			sprintf(tempstr, "%s/%s", mountpt, de->d_name);
+			yaffs_lstat(tempstr, &stat);
+			printf("%-25s\t%7ld",
+					de->d_name,
+					(long)stat.st_size);
+			printf(" %5d %s\n",
+					stat.st_ino,
+					yaffs_file_type_str(&stat));
+		} else {
+			printf("%s\n", de->d_name);
+		}
+	}
+
+	yaffs_closedir(d);
+}
+
+
+void cmd_yaffs_mkdir(const char *dir)
+{
+	int retval = yaffs_mkdir(dir, 0);
+
+	if (retval < 0)
+		printf("yaffs_mkdir returning error: %d, %s\n",
+			retval, yaffs_error_str());
+}
+
+void cmd_yaffs_rmdir(const char *dir)
+{
+	int retval = yaffs_rmdir(dir);
+
+	if (retval < 0)
+		printf("yaffs_rmdir returning error: %d, %s\n",
+			retval, yaffs_error_str());
+}
+
+void cmd_yaffs_rm(const char *path)
+{
+	int retval = yaffs_unlink(path);
+
+	if (retval < 0)
+		printf("yaffs_unlink returning error: %d, %s\n",
+			retval, yaffs_error_str());
+}
+
+void cmd_yaffs_mv(const char *oldPath, const char *newPath)
+{
+	int retval = yaffs_rename(newPath, oldPath);
+
+	if (retval < 0)
+		printf("yaffs_unlink returning error: %d, %s\n",
+			retval, yaffs_error_str());
+}