diff options
Diffstat (limited to 'qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif2.c')
| -rw-r--r-- | qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif2.c | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif2.c b/qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif2.c deleted file mode 100644 index 234cb706d..000000000 --- a/qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif2.c +++ /dev/null @@ -1,232 +0,0 @@ -/* - * 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. - */ - -/* mtd interface for YAFFS2 */ - -/* XXX U-BOOT XXX */ -#include <common.h> -#include "asm/errno.h" - -#include "yportenv.h" -#include "yaffs_trace.h" - -#include "yaffs_mtdif2.h" - -#include "linux/mtd/mtd.h" -#include "linux/types.h" -#include "linux/time.h" - -#include "yaffs_trace.h" -#include "yaffs_packedtags2.h" - -#define yaffs_dev_to_mtd(dev) ((struct mtd_info *)((dev)->driver_context)) -#define yaffs_dev_to_lc(dev) ((struct yaffs_linux_context *)((dev)->os_context)) - - -/* NB For use with inband tags.... - * We assume that the data buffer is of size total_bytes_per_chunk so - * that we can also use it to load the tags. - */ -int nandmtd2_write_chunk_tags(struct yaffs_dev *dev, int nand_chunk, - const u8 *data, - const struct yaffs_ext_tags *tags) -{ - struct mtd_info *mtd = yaffs_dev_to_mtd(dev); - struct mtd_oob_ops ops; - - int retval = 0; - loff_t addr; - - struct yaffs_packed_tags2 pt; - - int packed_tags_size = - dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); - void *packed_tags_ptr = - dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt; - - yaffs_trace(YAFFS_TRACE_MTD, - "nandmtd2_write_chunk_tags chunk %d data %p tags %p", - nand_chunk, data, tags); - - addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; - - /* For yaffs2 writing there must be both data and tags. - * If we're using inband tags, then the tags are stuffed into - * the end of the data buffer. - */ - if (!data || !tags) - BUG(); - else if (dev->param.inband_tags) { - struct yaffs_packed_tags2_tags_only *pt2tp; - pt2tp = - (struct yaffs_packed_tags2_tags_only *)(data + - dev-> - data_bytes_per_chunk); - yaffs_pack_tags2_tags_only(pt2tp, tags); - } else { - yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc); - } - - ops.mode = MTD_OPS_AUTO_OOB; - ops.ooblen = (dev->param.inband_tags) ? 0 : packed_tags_size; - ops.len = dev->param.total_bytes_per_chunk; - ops.ooboffs = 0; - ops.datbuf = (u8 *) data; - ops.oobbuf = (dev->param.inband_tags) ? NULL : packed_tags_ptr; - retval = mtd_write_oob(mtd, addr, &ops); - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - -int nandmtd2_read_chunk_tags(struct yaffs_dev *dev, int nand_chunk, - u8 *data, struct yaffs_ext_tags *tags) -{ - struct mtd_info *mtd = yaffs_dev_to_mtd(dev); - u8 local_spare[128]; - struct mtd_oob_ops ops; - size_t dummy; - int retval = 0; - int local_data = 0; - struct yaffs_packed_tags2 pt; - loff_t addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk; - int packed_tags_size = - dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt); - void *packed_tags_ptr = - dev->param.no_tags_ecc ? (void *)&pt.t : (void *)&pt; - - yaffs_trace(YAFFS_TRACE_MTD, - "nandmtd2_read_chunk_tags chunk %d data %p tags %p", - nand_chunk, data, tags); - - if (dev->param.inband_tags) { - - if (!data) { - local_data = 1; - data = yaffs_get_temp_buffer(dev); - } - - } - - if (dev->param.inband_tags || (data && !tags)) - retval = mtd_read(mtd, addr, dev->param.total_bytes_per_chunk, - &dummy, data); - else if (tags) { - ops.mode = MTD_OPS_AUTO_OOB; - ops.ooblen = packed_tags_size; - ops.len = data ? dev->data_bytes_per_chunk : packed_tags_size; - ops.ooboffs = 0; - ops.datbuf = data; - ops.oobbuf = local_spare; - retval = mtd_read_oob(mtd, addr, &ops); - } - - if (dev->param.inband_tags) { - if (tags) { - struct yaffs_packed_tags2_tags_only *pt2tp; - pt2tp = - (struct yaffs_packed_tags2_tags_only *) - &data[dev->data_bytes_per_chunk]; - yaffs_unpack_tags2_tags_only(tags, pt2tp); - } - } else { - if (tags) { - memcpy(packed_tags_ptr, - local_spare, - packed_tags_size); - yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc); - } - } - - if (local_data) - yaffs_release_temp_buffer(dev, data); - - if (tags && retval == -EBADMSG - && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) { - tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED; - dev->n_ecc_unfixed++; - } - if (tags && retval == -EUCLEAN - && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) { - tags->ecc_result = YAFFS_ECC_RESULT_FIXED; - dev->n_ecc_fixed++; - } - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - - -int nandmtd2_MarkNANDBlockBad(struct yaffs_dev *dev, int blockNo) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context); - int retval; - - yaffs_trace(YAFFS_TRACE_MTD, - "nandmtd2_MarkNANDBlockBad %d", blockNo); - - retval = - mtd_block_markbad(mtd, - blockNo * dev->param.chunks_per_block * - dev->data_bytes_per_chunk); - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; - -} - -int nandmtd2_QueryNANDBlock(struct yaffs_dev *dev, int blockNo, - enum yaffs_block_state *state, u32 *sequenceNumber) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context); - int retval; - - yaffs_trace(YAFFS_TRACE_MTD, "nandmtd2_QueryNANDBlock %d", blockNo); - retval = - mtd_block_isbad(mtd, - blockNo * dev->param.chunks_per_block * - dev->data_bytes_per_chunk); - - if (retval) { - yaffs_trace(YAFFS_TRACE_MTD, "block is bad"); - - *state = YAFFS_BLOCK_STATE_DEAD; - *sequenceNumber = 0; - } else { - struct yaffs_ext_tags t; - nandmtd2_read_chunk_tags(dev, - blockNo * - dev->param.chunks_per_block, NULL, - &t); - - if (t.chunk_used) { - *sequenceNumber = t.seq_number; - *state = YAFFS_BLOCK_STATE_NEEDS_SCAN; - } else { - *sequenceNumber = 0; - *state = YAFFS_BLOCK_STATE_EMPTY; - } - } - yaffs_trace(YAFFS_TRACE_MTD, "block is bad seq %d state %d", - *sequenceNumber, *state); - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} |