diff options
Diffstat (limited to 'qemu/roms/u-boot/fs/yaffs2/yaffs_nandif.c')
| -rw-r--r-- | qemu/roms/u-boot/fs/yaffs2/yaffs_nandif.c | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/qemu/roms/u-boot/fs/yaffs2/yaffs_nandif.c b/qemu/roms/u-boot/fs/yaffs2/yaffs_nandif.c deleted file mode 100644 index 79b00ab3b..000000000 --- a/qemu/roms/u-boot/fs/yaffs2/yaffs_nandif.c +++ /dev/null @@ -1,251 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2011 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. - */ - -#include "yportenv.h" -#include "yaffs_guts.h" - - -#include "yaffs_nandif.h" -#include "yaffs_packedtags2.h" - -#include "yramsim.h" - -#include "yaffs_trace.h" -#include "yaffsfs.h" - - -/* NB For use with inband tags.... - * We assume that the data buffer is of size totalBytersPerChunk so that - * we can also use it to load the tags. - */ -int ynandif_WriteChunkWithTagsToNAND(struct yaffs_dev *dev, int nand_chunk, - const u8 *data, - const struct yaffs_ext_tags *tags) -{ - - int retval = 0; - struct yaffs_packed_tags2 pt; - void *spare; - unsigned spareSize = 0; - struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context); - - yaffs_trace(YAFFS_TRACE_MTD, - "nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p", - nand_chunk, data, tags); - - - /* 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 (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); - spare = NULL; - spareSize = 0; - } else { - yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc); - spare = &pt; - spareSize = sizeof(struct yaffs_packed_tags2); - } - - retval = geometry->writeChunk(dev, nand_chunk, - data, dev->param.total_bytes_per_chunk, - spare, spareSize); - - return retval; -} - -int ynandif_ReadChunkWithTagsFromNAND(struct yaffs_dev *dev, int nand_chunk, - u8 *data, struct yaffs_ext_tags *tags) -{ - struct yaffs_packed_tags2 pt; - int localData = 0; - void *spare = NULL; - unsigned spareSize; - int retval = 0; - int eccStatus; /* 0 = ok, 1 = fixed, -1 = unfixed */ - struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context); - - yaffs_trace(YAFFS_TRACE_MTD, - "nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p", - nand_chunk, data, tags); - - if (!tags) { - spare = NULL; - spareSize = 0; - } else if (dev->param.inband_tags) { - - if (!data) { - localData = 1; - data = yaffs_get_temp_buffer(dev); - } - spare = NULL; - spareSize = 0; - } else { - spare = &pt; - spareSize = sizeof(struct yaffs_packed_tags2); - } - - retval = geometry->readChunk(dev, nand_chunk, - data, - data ? dev->param.total_bytes_per_chunk : 0, - spare, spareSize, - &eccStatus); - - 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) - yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc); - } - - if (tags && tags->chunk_used) { - if (eccStatus < 0 || - tags->ecc_result == YAFFS_ECC_RESULT_UNFIXED) - tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED; - else if (eccStatus > 0 || - tags->ecc_result == YAFFS_ECC_RESULT_FIXED) - tags->ecc_result = YAFFS_ECC_RESULT_FIXED; - else - tags->ecc_result = YAFFS_ECC_RESULT_NO_ERROR; - } - - if (localData) - yaffs_release_temp_buffer(dev, data); - - return retval; -} - -int ynandif_MarkNANDBlockBad(struct yaffs_dev *dev, int blockId) -{ - struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context); - - return geometry->markBlockBad(dev, blockId); -} - -int ynandif_EraseBlockInNAND(struct yaffs_dev *dev, int blockId) -{ - struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context); - - return geometry->eraseBlock(dev, blockId); - -} - - -static int ynandif_IsBlockOk(struct yaffs_dev *dev, int blockId) -{ - struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context); - - return geometry->checkBlockOk(dev, blockId); -} - -int ynandif_QueryNANDBlock(struct yaffs_dev *dev, int blockId, - enum yaffs_block_state *state, u32 *seq_number) -{ - unsigned chunkNo; - struct yaffs_ext_tags tags; - - *seq_number = 0; - - chunkNo = blockId * dev->param.chunks_per_block; - - if (!ynandif_IsBlockOk(dev, blockId)) { - *state = YAFFS_BLOCK_STATE_DEAD; - } else { - ynandif_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &tags); - - if (!tags.chunk_used) { - *state = YAFFS_BLOCK_STATE_EMPTY; - } else { - *state = YAFFS_BLOCK_STATE_NEEDS_SCAN; - *seq_number = tags.seq_number; - } - } - - return YAFFS_OK; -} - - -int ynandif_InitialiseNAND(struct yaffs_dev *dev) -{ - struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context); - - geometry->initialise(dev); - - return YAFFS_OK; -} - -int ynandif_Deinitialise_flash_fn(struct yaffs_dev *dev) -{ - struct ynandif_Geometry *geometry = (struct ynandif_Geometry *)(dev->driver_context); - - geometry->deinitialise(dev); - - return YAFFS_OK; -} - - -struct yaffs_dev * - yaffs_add_dev_from_geometry(const YCHAR *name, - const struct ynandif_Geometry *geometry) -{ - YCHAR *clonedName = malloc(sizeof(YCHAR) * - (strnlen(name, YAFFS_MAX_NAME_LENGTH)+1)); - struct yaffs_dev *dev = malloc(sizeof(struct yaffs_dev)); - struct yaffs_param *param; - - if (dev && clonedName) { - memset(dev, 0, sizeof(struct yaffs_dev)); - strcpy(clonedName, name); - - param = &dev->param; - - param->name = clonedName; - param->write_chunk_tags_fn = ynandif_WriteChunkWithTagsToNAND; - param->read_chunk_tags_fn = ynandif_ReadChunkWithTagsFromNAND; - param->erase_fn = ynandif_EraseBlockInNAND; - param->initialise_flash_fn = ynandif_InitialiseNAND; - param->query_block_fn = ynandif_QueryNANDBlock; - param->bad_block_fn = ynandif_MarkNANDBlockBad; - param->n_caches = 20; - param->start_block = geometry->start_block; - param->end_block = geometry->end_block; - param->total_bytes_per_chunk = geometry->dataSize; - param->spare_bytes_per_chunk = geometry->spareSize; - param->inband_tags = geometry->inband_tags; - param->chunks_per_block = geometry->pagesPerBlock; - param->use_nand_ecc = geometry->hasECC; - param->is_yaffs2 = geometry->useYaffs2; - param->n_reserved_blocks = 5; - dev->driver_context = (void *)geometry; - - yaffs_add_device(dev); - - return dev; - } - - free(dev); - free(clonedName); - - return NULL; -} |