X-Git-Url: https://yaffs.net/gitweb/?a=blobdiff_plain;f=yaffs_guts.c;h=3672e8d41b692bf93088f317d303a8e4ce345f0a;hb=ffa781d6427fba6469c60d91482079d5643ca7b7;hp=3c1aa105f35fcf18f1cb73cbe06f4dd0e3e20c7d;hpb=87b33ecd1898c99b9aa2b0abcbb3e6002d6b3532;p=yaffs2.git

diff --git a/yaffs_guts.c b/yaffs_guts.c
index 3c1aa10..3672e8d 100644
--- a/yaffs_guts.c
+++ b/yaffs_guts.c
@@ -41,7 +41,8 @@
 static int yaffs_wr_data_obj(struct yaffs_obj *in, int inode_chunk,
 			     const u8 *buffer, int n_bytes, int use_reserve);
 
-
+static void yaffs_fix_null_name(struct yaffs_obj *obj, YCHAR *name,
+				int buffer_size);
 
 /* Function to calculate chunk and offset */
 
@@ -648,15 +649,21 @@ static u16 yaffs_calc_name_sum(const YCHAR *name)
 	return sum;
 }
 
+
 void yaffs_set_obj_name(struct yaffs_obj *obj, const YCHAR * name)
 {
 	memset(obj->short_name, 0, sizeof(obj->short_name));
-	if (name &&
+
+	if (name && !name[0]) {
+		yaffs_fix_null_name(obj, obj->short_name,
+				YAFFS_SHORT_NAME_LENGTH);
+		name = obj->short_name;
+	} else if (name &&
 		strnlen(name, YAFFS_SHORT_NAME_LENGTH + 1) <=
-		YAFFS_SHORT_NAME_LENGTH)
+		YAFFS_SHORT_NAME_LENGTH)  {
 		strcpy(obj->short_name, name);
-	else
-		obj->short_name[0] = _Y('\0');
+	}
+
 	obj->sum = yaffs_calc_name_sum(name);
 }
 
@@ -4586,15 +4593,16 @@ static int yaffs_create_initial_dir(struct yaffs_dev *dev)
 	return YAFFS_FAIL;
 }
 
-int yaffs_guts_initialise(struct yaffs_dev *dev)
+/* Low level init.
+ * Typically only used by yaffs_guts_initialise, but also used by the
+ * Low level yaffs driver tests.
+ */
+
+int yaffs_guts_ll_init(struct yaffs_dev *dev)
 {
-	int init_failed = 0;
-	unsigned x;
-	int bits;
 
-	yaffs_trace(YAFFS_TRACE_TRACING, "yaffs: yaffs_guts_initialise()");
 
-	/* Check stuff that must be set */
+	yaffs_trace(YAFFS_TRACE_TRACING, "yaffs: yaffs_ll_init()");
 
 	if (!dev) {
 		yaffs_trace(YAFFS_TRACE_ALWAYS,
@@ -4603,10 +4611,8 @@ int yaffs_guts_initialise(struct yaffs_dev *dev)
 		return YAFFS_FAIL;
 	}
 
-	if (dev->is_mounted) {
-		yaffs_trace(YAFFS_TRACE_ALWAYS, "device already mounted");
-		return YAFFS_FAIL;
-	}
+	if (dev->ll_init)
+		return YAFFS_OK;
 
 	dev->internal_start_block = dev->param.start_block;
 	dev->internal_end_block = dev->param.end_block;
@@ -4646,11 +4652,6 @@ int yaffs_guts_initialise(struct yaffs_dev *dev)
 		return YAFFS_FAIL;
 	}
 
-	if (yaffs_init_nand(dev) != YAFFS_OK) {
-		yaffs_trace(YAFFS_TRACE_ALWAYS, "InitialiseNAND failed");
-		return YAFFS_FAIL;
-	}
-
 	/* Sort out space for inband tags, if required */
 	if (dev->param.inband_tags)
 		dev->data_bytes_per_chunk =
@@ -4668,7 +4669,50 @@ int yaffs_guts_initialise(struct yaffs_dev *dev)
 		return YAFFS_FAIL;
 	}
 
-	/* Finished with most checks. Further checks happen later on too. */
+	if (yaffs_init_nand(dev) != YAFFS_OK) {
+		yaffs_trace(YAFFS_TRACE_ALWAYS, "InitialiseNAND failed");
+		return YAFFS_FAIL;
+	}
+
+	return YAFFS_OK;
+}
+
+
+int yaffs_format_dev(struct yaffs_dev *dev)
+{
+	int i;
+	enum yaffs_block_state state;
+	u32 dummy;
+
+	if(yaffs_guts_ll_init(dev) != YAFFS_OK)
+		return YAFFS_FAIL;
+
+	if(dev->is_mounted)
+		return YAFFS_FAIL;
+
+	for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
+		yaffs_query_init_block_state(dev, i, &state, &dummy);
+		if (state != YAFFS_BLOCK_STATE_DEAD)
+			yaffs_erase_block(dev, i);
+	}
+
+	return YAFFS_OK;
+}
+
+
+int yaffs_guts_initialise(struct yaffs_dev *dev)
+{
+	int init_failed = 0;
+	unsigned x;
+	int bits;
+
+	if(yaffs_guts_ll_init(dev) != YAFFS_OK)
+		return YAFFS_FAIL;
+
+	if (dev->is_mounted) {
+		yaffs_trace(YAFFS_TRACE_ALWAYS, "device already mounted");
+		return YAFFS_FAIL;
+	}
 
 	dev->is_mounted = 1;
 
@@ -4992,6 +5036,8 @@ int yaffs_get_n_free_chunks(struct yaffs_dev *dev)
 	return n_free;
 }
 
+
+
 /*
  * Marshalling functions to get loff_t file sizes into and out of
  * object headers.