Merge branch 'driver-refactoring' into new-driver-refactoring

[yaffs2.git] / yaffs_guts.c

diff --git a/yaffs_guts.c b/yaffs_guts.c
index 9c296e24bcd181440cdb254f3dc3b3602f3730a9..9f6b40964b5e85d154294fef73af38b544634cd8 100644 (file)
--- a/yaffs_guts.c
+++ b/yaffs_guts.c
@@ -17,6 +17,7 @@
 #include "yaffs_guts.h"
 #include "yaffs_getblockinfo.h"
 #include "yaffs_tagscompat.h"
+#include "yaffs_tagsmarshall.h"
 #include "yaffs_nand.h"
 #include "yaffs_yaffs1.h"
 #include "yaffs_yaffs2.h"
@@ -609,10 +610,10 @@ static void yaffs_retire_block(struct yaffs_dev *dev, int flash_block)
                        memset(buffer, 0xff, dev->data_bytes_per_chunk);
                        memset(&tags, 0, sizeof(tags));
                        tags.seq_number = YAFFS_SEQUENCE_BAD_BLOCK;
-                       if (dev->param.write_chunk_tags_fn(dev, chunk_id -
-                                                          dev->chunk_offset,
-                                                          buffer,
-                                                          &tags) != YAFFS_OK)
+                       if (dev->tagger.write_chunk_tags_fn(dev, chunk_id -
+                                                       dev->chunk_offset,
+                                                       buffer,
+                                                       &tags) != YAFFS_OK)
                                yaffs_trace(YAFFS_TRACE_ALWAYS,
                                        "yaffs: Failed to write bad block marker to block %d",
                                        flash_block);
@@ -2804,7 +2805,8 @@ static int yaffs_check_gc(struct yaffs_dev *dev, int background)
        int erased_chunks;
        int checkpt_block_adjust;
 
-       if (dev->param.gc_control && (dev->param.gc_control(dev) & 1) == 0)
+       if (dev->param.gc_control_fn &&
+               (dev->param.gc_control_fn(dev) & 1) == 0)
                return YAFFS_OK;
 
        if (dev->gc_disable)
@@ -3566,9 +3568,11 @@ int yaffs_do_file_wr(struct yaffs_obj *in, const u8 *buffer, loff_t offset,
                }
 
                if (n_copy != dev->data_bytes_per_chunk ||
+                   !dev->param.cache_bypass_aligned ||
                    dev->param.inband_tags) {
                        /* An incomplete start or end chunk (or maybe both
                         * start and end chunk), or we're using inband tags,
+                        * or we're forcing writes through the cache,
                         * so we want to use the cache buffers.
                         */
                        if (dev->param.n_caches > 0) {
@@ -4536,30 +4540,33 @@ YCHAR *yaffs_get_symlink_alias(struct yaffs_obj *obj)
 
 /*--------------------------- Initialisation code -------------------------- */
 
-static int yaffs_check_dev_fns(const struct yaffs_dev *dev)
+static int yaffs_check_dev_fns(struct yaffs_dev *dev)
 {
+       struct yaffs_driver *drv = &dev->drv;
+       struct yaffs_tags_handler *tagger = &dev->tagger;
+
        /* Common functions, gotta have */
-       if (!dev->param.erase_fn || !dev->param.initialise_flash_fn)
+       if (!drv->drv_read_chunk_fn ||
+           !drv->drv_write_chunk_fn ||
+           !drv->drv_erase_fn)
                return 0;
 
-       /* Can use the "with tags" style interface for yaffs1 or yaffs2 */
-       if (dev->param.write_chunk_tags_fn &&
-           dev->param.read_chunk_tags_fn &&
-           !dev->param.write_chunk_fn &&
-           !dev->param.read_chunk_fn &&
-           dev->param.bad_block_fn && dev->param.query_block_fn)
-               return 1;
+       if (dev->param.is_yaffs2 &&
+            (!drv->drv_mark_bad_fn  || !drv->drv_check_bad_fn))
+               return 0;
 
-       /* Can use the "spare" style interface for yaffs1 */
-       if (!dev->param.is_yaffs2 &&
-           !dev->param.write_chunk_tags_fn &&
-           !dev->param.read_chunk_tags_fn &&
-           dev->param.write_chunk_fn &&
-           dev->param.read_chunk_fn &&
-           !dev->param.bad_block_fn && !dev->param.query_block_fn)
-               return 1;
+       /* Install the default tags marshalling functions if needed. */
+       yaffs_tags_compat_install(dev);
+       yaffs_tags_marshall_install(dev);
 
-       return 0;               /* bad */
+       /* Check we now have the marshalling functions required. */
+       if (!tagger->write_chunk_tags_fn ||
+           !tagger->read_chunk_tags_fn ||
+           !tagger->query_block_fn ||
+           !tagger->mark_bad_fn)
+               return 0;
+
+       return 1;
 }
 
 static int yaffs_create_initial_dir(struct yaffs_dev *dev)
@@ -4929,8 +4936,7 @@ void yaffs_deinitialise(struct yaffs_dev *dev)
 
                dev->is_mounted = 0;
 
-               if (dev->param.deinitialise_flash_fn)
-                       dev->param.deinitialise_flash_fn(dev);
+               yaffs_deinit_nand(dev);
        }
 }