- struct yaffs_param *param = &dev->param;
-
- param->drv_write_chunk_fn = yaffs_mtd_write;
- param->drv_read_chunk_fn = yaffs_mtd_read;
- param->drv_erase_fn = yaffs_mtd_erase;
- param->drv_mark_bad_fn = yaffs_mtd_mark_bad;
- param->drv_check_bad_fn = yaffs_mtd_check_bad;
- param->drv_initialise_fn = yaffs_mtd_initialise;
- param->drv_deinitialise_fn = yaffs_mtd_deinitialise;
+ struct yaffs_driver *drv = &dev->drv;
+
+ drv->drv_write_chunk_fn = yaffs_mtd_write;
+ drv->drv_read_chunk_fn = yaffs_mtd_read;
+ drv->drv_erase_fn = yaffs_mtd_erase;
+ drv->drv_mark_bad_fn = yaffs_mtd_mark_bad;
+ drv->drv_check_bad_fn = yaffs_mtd_check_bad;
+ drv->drv_initialise_fn = yaffs_mtd_initialise;
+ drv->drv_deinitialise_fn = yaffs_mtd_deinitialise;
+}
+
+
+struct mtd_info * yaffs_get_mtd_device(dev_t sdev)
+{
+ struct mtd_info *mtd;
+
+ mtd = yaffs_get_mtd_device(sdev);
+
+ /* Check it's an mtd device..... */
+ if (MAJOR(sdev) != MTD_BLOCK_MAJOR)
+ return NULL; /* This isn't an mtd device */
+
+ /* Check it's NAND */
+ if (mtd->type != MTD_NANDFLASH) {
+ yaffs_trace(YAFFS_TRACE_ALWAYS,
+ "yaffs: MTD device is not NAND it's type %d",
+ mtd->type);
+ return NULL;
+ }
+
+ yaffs_trace(YAFFS_TRACE_OS, " %s %d", WRITE_SIZE_STR, WRITE_SIZE(mtd));
+ yaffs_trace(YAFFS_TRACE_OS, " oobsize %d", mtd->oobsize);
+ yaffs_trace(YAFFS_TRACE_OS, " erasesize %d", mtd->erasesize);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+ yaffs_trace(YAFFS_TRACE_OS, " size %u", mtd->size);
+#else
+ yaffs_trace(YAFFS_TRACE_OS, " size %lld", mtd->size);
+#endif
+
+ return mtd;
+}
+
+int yaffs_verify_mtd(struct mtd_info *mtd, int yaffs_version, int inband_tags)
+{
+ if (yaffs_version == 2) {
+ if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
+ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
+ !inband_tags) {
+ yaffs_trace(YAFFS_TRACE_ALWAYS,
+ "MTD device does not have the right page sizes"
+ );
+ return -1;
+ }
+ } else {
+ if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK ||
+ mtd->oobsize != YAFFS_BYTES_PER_SPARE) {
+ yaffs_trace(YAFFS_TRACE_ALWAYS,
+ "MTD device does not support have the right page sizes"
+ );
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+
+void yaffs_put_mtd_device(struct mtd_info *mtd)
+{
+ if(mtd)
+ put_mtd_device(mtd);