Add Waldemar's patches for Linux 3.2
[yaffs2.git] / yaffs_mtdif2_single.c
index 00040cd..f92c49f 100644 (file)
@@ -1,7 +1,7 @@
 /*
  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
  *
- * Copyright (C) 2002-2010 Aleph One Ltd.
+ * Copyright (C) 2002-2011 Aleph One Ltd.
  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>
 
 #include "yportenv.h"
 #include "yaffs_trace.h"
-
 #include "yaffs_mtdif2.h"
-
+#include "yaffs_packedtags2.h"
+#include "yaffs_linux.h"
 #include "linux/mtd/mtd.h"
 #include "linux/types.h"
 #include "linux/time.h"
+#include "mtd/mtd-abi.h"
 
-#include "yaffs_packedtags2.h"
-
-#include "yaffs_linux.h"
 
 /* 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.
+ * 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 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;
 
-       T(YAFFS_TRACE_MTD,
-         (TSTR
-          ("nandmtd2_write_chunk_tags chunk %d data %p tags %p"
-           TENDSTR), nand_chunk, data, tags));
+       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;
 
@@ -62,15 +56,16 @@ int nandmtd2_write_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
                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);
+                   (struct yaffs_packed_tags2_tags_only *)
+                       (data + dev->data_bytes_per_chunk);
                yaffs_pack_tags2_tags_only(pt2tp, tags);
-       } else
+       } else {
                yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc);
+       }
 
-       ops.mode = MTD_OOB_AUTO;
+       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;
@@ -80,48 +75,39 @@ int nandmtd2_write_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
 
        if (retval == 0)
                return YAFFS_OK;
-       else
-               return YAFFS_FAIL;
+
+       return YAFFS_FAIL;
 }
 
 int nandmtd2_read_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
-                            u8 * data, struct yaffs_ext_tags *tags)
+                            u8 *data, struct yaffs_ext_tags *tags)
 {
        struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
        struct mtd_oob_ops ops;
-
        size_t dummy;
        int retval = 0;
        int local_data = 0;
-
        loff_t addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk;
-
        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;
 
-       T(YAFFS_TRACE_MTD,
-         (TSTR
-          ("nandmtd2_read_chunk_tags chunk %d data %p tags %p"
-           TENDSTR), nand_chunk, data, tags));
-
-       if (dev->param.inband_tags) {
-
-               if (!data) {
-                       local_data = 1;
-                       data = yaffs_get_temp_buffer(dev, __LINE__);
-               }
+       yaffs_trace(YAFFS_TRACE_MTD,
+               "nandmtd2_read_chunk_tags chunk %d data %p tags %p",
+               nand_chunk, data, tags);
 
+       if (dev->param.inband_tags && !data) {
+               local_data = 1;
+               data = yaffs_get_temp_buffer(dev);
        }
 
-       if (dev->param.inband_tags || (data && !tags))
+       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;
+       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;
@@ -130,48 +116,47 @@ int nandmtd2_read_chunk_tags(struct yaffs_dev *dev, int nand_chunk,
                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,
-                              yaffs_dev_to_lc(dev)->spare_buffer,
-                              packed_tags_size);
-                       yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc);
-               }
+       if (dev->param.inband_tags && 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,
+                      yaffs_dev_to_lc(dev)->spare_buffer,
+                      packed_tags_size);
+               yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc);
        }
 
        if (local_data)
-               yaffs_release_temp_buffer(dev, data, __LINE__);
+               yaffs_release_temp_buffer(dev, data);
 
-       if (tags && retval == -EBADMSG
-           && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) {
+       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) {
+       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;
+
+       return YAFFS_FAIL;
 }
 
 int nandmtd2_mark_block_bad(struct yaffs_dev *dev, int block_no)
 {
        struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
        int retval;
-       T(YAFFS_TRACE_MTD,
-         (TSTR("nandmtd2_mark_block_bad %d" TENDSTR), block_no));
+
+       yaffs_trace(YAFFS_TRACE_MTD,
+               "nandmtd2_mark_block_bad %d", block_no);
 
        retval =
            mtd->block_markbad(mtd,
@@ -180,9 +165,8 @@ int nandmtd2_mark_block_bad(struct yaffs_dev *dev, int block_no)
 
        if (retval == 0)
                return YAFFS_OK;
-       else
-               return YAFFS_FAIL;
 
+       return YAFFS_FAIL;
 }
 
 int nandmtd2_query_block(struct yaffs_dev *dev, int block_no,
@@ -191,35 +175,36 @@ int nandmtd2_query_block(struct yaffs_dev *dev, int block_no,
        struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
        int retval;
 
-       T(YAFFS_TRACE_MTD, (TSTR("nandmtd2_query_block %d" TENDSTR), block_no));
+       yaffs_trace(YAFFS_TRACE_MTD, "nandmtd2_query_block %d", block_no);
        retval =
            mtd->block_isbad(mtd,
                             block_no * dev->param.chunks_per_block *
                             dev->param.total_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;
                *seq_number = 0;
        } else {
                struct yaffs_ext_tags t;
+
                nandmtd2_read_chunk_tags(dev, block_no *
                                         dev->param.chunks_per_block, NULL, &t);
 
                if (t.chunk_used) {
                        *seq_number = t.seq_number;
-                       *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
+                       *state = YAFFS_BLOCK_STATE_NEEDS_SCAN;
                } else {
                        *seq_number = 0;
                        *state = YAFFS_BLOCK_STATE_EMPTY;
                }
        }
-       T(YAFFS_TRACE_MTD,
-         (TSTR("block is bad seq %d state %d" TENDSTR), *seq_number, *state));
+       yaffs_trace(YAFFS_TRACE_MTD,
+               "block is bad seq %d state %d", *seq_number, *state);
 
        if (retval == 0)
                return YAFFS_OK;
-       else
-               return YAFFS_FAIL;
+
+       return YAFFS_FAIL;
 }