diff options
author | Charles Manning <cdhmanning@gmail.com> | 2012-05-09 16:55:17 +0000 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2012-08-09 23:39:18 +0200 |
commit | 753ac610880e6e563d0384bb114f8b41df89e520 (patch) | |
tree | 049dc45790bc6f66dd696d4cd671fd6a2cae4473 /fs/yaffs2/yaffs_mtdif2.c | |
parent | 3874a377451e4d1f45710f5bf801dd96e8b8f67e (diff) |
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>
Diffstat (limited to 'fs/yaffs2/yaffs_mtdif2.c')
-rw-r--r-- | fs/yaffs2/yaffs_mtdif2.c | 270 |
1 files changed, 135 insertions, 135 deletions
diff --git a/fs/yaffs2/yaffs_mtdif2.c b/fs/yaffs2/yaffs_mtdif2.c index f569b999f48..b27fe56214d 100644 --- a/fs/yaffs2/yaffs_mtdif2.c +++ b/fs/yaffs2/yaffs_mtdif2.c @@ -17,11 +17,8 @@ #include <common.h> #include "asm/errno.h" -const char *yaffs_mtdif2_c_version = - "$Id: yaffs_mtdif2.c,v 1.17 2007/02/14 01:09:06 wookey Exp $"; - #include "yportenv.h" - +#include "yaffs_trace.h" #include "yaffs_mtdif2.h" @@ -29,71 +26,67 @@ const char *yaffs_mtdif2_c_version = #include "linux/types.h" #include "linux/time.h" +#include "yaffs_trace.h" #include "yaffs_packedtags2.h" +#include "string.h" -int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, - const yaffs_ExtendedTags * tags) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - struct mtd_oob_ops ops; -#else - size_t dummy; -#endif - int retval = 0; - - loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; - - yaffs_PackedTags2 pt; +#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)) - T(YAFFS_TRACE_MTD, - (TSTR - ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p" - TENDSTR), chunkInNAND, data, tags)); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - if (tags) - yaffs_PackTags2(&pt, tags); - else - BUG(); /* both tags and data should always be present */ +/* 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; - if (data) { - ops.mode = MTD_OOB_AUTO; - ops.ooblen = sizeof(pt); - ops.len = dev->nDataBytesPerChunk; - ops.ooboffs = 0; - ops.datbuf = (__u8 *)data; - ops.oobbuf = (void *)&pt; - retval = mtd->write_oob(mtd, addr, &ops); - } else - BUG(); /* both tags and data should always be present */ -#else - if (tags) { - yaffs_PackTags2(&pt, tags); - } + int retval = 0; - if (data && tags) { - if (dev->useNANDECC) - retval = - mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, (__u8 *) & pt, NULL); - else - retval = - mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, (__u8 *) & pt, NULL); + loff_t addr; + u8 local_spare[128]; + + 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 { - if (data) - retval = - mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy, - data); - if (tags) - retval = - mtd->write_oob(mtd, addr, mtd->oobsize, &dummy, - (__u8 *) & pt); - + yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc); } -#endif + + ops.mode = MTD_OOB_AUTO; + 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; @@ -101,88 +94,97 @@ int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, return YAFFS_FAIL; } -int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, - __u8 * data, yaffs_ExtendedTags * tags) +int nandmtd2_read_chunk_tags(struct yaffs_dev *dev, int nand_chunk, + u8 *data, struct yaffs_ext_tags *tags) { - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) + struct mtd_info *mtd = yaffs_dev_to_mtd(dev); + u8 local_spare[128]; struct mtd_oob_ops ops; -#endif 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); + } - loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; - - yaffs_PackedTags2 pt; - - T(YAFFS_TRACE_MTD, - (TSTR - ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p" - TENDSTR), chunkInNAND, data, tags)); + } -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - if (data && !tags) - retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data); + 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_OOB_AUTO; - ops.ooblen = sizeof(pt); - ops.len = data ? dev->nDataBytesPerChunk : sizeof(pt); + ops.ooblen = packed_tags_size; + ops.len = data ? dev->data_bytes_per_chunk : packed_tags_size; ops.ooboffs = 0; ops.datbuf = data; - ops.oobbuf = dev->spareBuffer; + ops.oobbuf = local_spare; retval = mtd->read_oob(mtd, addr, &ops); } -#else - if (data && tags) { - if (dev->useNANDECC) { - retval = - mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, dev->spareBuffer, - NULL); - } else { - retval = - mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, dev->spareBuffer, - NULL); + + 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 (data) - retval = - mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, - data); - if (tags) - retval = - mtd->read_oob(mtd, addr, mtd->oobsize, &dummy, - dev->spareBuffer); + if (tags) { + memcpy(packed_tags_ptr, + local_spare, + packed_tags_size); + yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc); + } } -#endif - - memcpy(&pt, dev->spareBuffer, sizeof(pt)); - if (tags) - yaffs_UnpackTags2(tags, &pt); - - if(tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) - tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; + 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_DeviceStruct *dev, int blockNo) + +int nandmtd2_MarkNANDBlockBad(struct yaffs_dev *dev, int blockNo) { - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); + struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context); int retval; - T(YAFFS_TRACE_MTD, - (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), blockNo)); + + yaffs_trace(YAFFS_TRACE_MTD, + "nandmtd2_MarkNANDBlockBad %d", blockNo); retval = mtd->block_markbad(mtd, - blockNo * dev->nChunksPerBlock * - dev->nDataBytesPerChunk); + blockNo * dev->param.chunks_per_block * + dev->data_bytes_per_chunk); if (retval == 0) return YAFFS_OK; @@ -191,42 +193,40 @@ int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) } -int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, - yaffs_BlockState * state, int *sequenceNumber) +int nandmtd2_QueryNANDBlock(struct yaffs_dev *dev, int blockNo, + enum yaffs_block_state *state, u32 *sequenceNumber) { - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); + struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context); int retval; - T(YAFFS_TRACE_MTD, - (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo)); + yaffs_trace(YAFFS_TRACE_MTD, "nandmtd2_QueryNANDBlock %d", blockNo); retval = mtd->block_isbad(mtd, - blockNo * dev->nChunksPerBlock * - dev->nDataBytesPerChunk); + blockNo * dev->param.chunks_per_block * + dev->data_bytes_per_chunk); if (retval) { - T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR))); + yaffs_trace(YAFFS_TRACE_MTD, "block is bad"); *state = YAFFS_BLOCK_STATE_DEAD; *sequenceNumber = 0; } else { - yaffs_ExtendedTags t; - nandmtd2_ReadChunkWithTagsFromNAND(dev, - blockNo * - dev->nChunksPerBlock, NULL, - &t); - - if (t.chunkUsed) { - *sequenceNumber = t.sequenceNumber; - *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; + 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; } } - T(YAFFS_TRACE_MTD, - (TSTR("block is bad seq %d state %d" TENDSTR), *sequenceNumber, - *state)); + yaffs_trace(YAFFS_TRACE_MTD, "block is bad seq %d state %d", + *sequenceNumber, *state); if (retval == 0) return YAFFS_OK; |