clang-format: ext4_config

[lwext4.git] / lwext4 / ext4_super.h

diff --git a/lwext4/ext4_super.h b/lwext4/ext4_super.h
index 0035deddfc8e968bf6bf9a117c65ac21e672a590..45eaa14549c69ad2c545f980a1e66b3b31b5f1a6 100644 (file)
--- a/lwext4/ext4_super.h
+++ b/lwext4/ext4_super.h
@@ -42,20 +42,16 @@
 #ifndef EXT4_SUPER_H_
 #define EXT4_SUPER_H_
 
-
 #include <ext4_config.h>
 #include <ext4_types.h>
 
-
-/****************************Unstandard access to superblock*****************/
-
 /**@brief   Blocks count get stored in superblock.
  * @param   s superblock descriptor
  * @return  count of blocks*/
 static inline uint64_t ext4_sb_get_blocks_cnt(struct ext4_sblock *s)
 {
-    return ((uint64_t) to_le32(s->blocks_count_hi) << 32) |
-            to_le32(s->blocks_count_lo);
+    return ((uint64_t)to_le32(s->blocks_count_hi) << 32) |
+           to_le32(s->blocks_count_lo);
 }
 
 /**@brief   Free blocks count get stored in superblock.
@@ -63,15 +59,15 @@ static inline uint64_t ext4_sb_get_blocks_cnt(struct ext4_sblock *s)
  * @return  free blocks*/
 static inline uint64_t ext4_sb_get_free_blocks_cnt(struct ext4_sblock *s)
 {
-    return ((uint64_t) to_le32(s->free_blocks_count_hi) << 32) |
-            to_le32(s->free_blocks_count_lo);
+    return ((uint64_t)to_le32(s->free_blocks_count_hi) << 32) |
+           to_le32(s->free_blocks_count_lo);
 }
 
 /**@brief   Free blocks count set.
  * @param   s superblock descriptor
  * @param   cnt new value of free blocks*/
 static inline void ext4_sb_set_free_blocks_cnt(struct ext4_sblock *s,
-    uint64_t cnt)
+                                               uint64_t cnt)
 {
     s->free_blocks_count_lo = to_le32((cnt << 32) >> 32);
     s->free_blocks_count_hi = to_le32(cnt >> 32);
@@ -92,8 +88,9 @@ static inline uint16_t ext4_sb_get_desc_size(struct ext4_sblock *s)
 {
     uint16_t size = to_le16(s->desc_size);
 
-    return size < EXT4_MIN_BLOCK_GROUP_DESCRIPTOR_SIZE ?
-            EXT4_MIN_BLOCK_GROUP_DESCRIPTOR_SIZE : size;
+    return size < EXT4_MIN_BLOCK_GROUP_DESCRIPTOR_SIZE
+               ? EXT4_MIN_BLOCK_GROUP_DESCRIPTOR_SIZE
+               : size;
 }
 
 /*************************Flags and features*********************************/
@@ -111,33 +108,58 @@ static inline bool ext4_sb_check_flag(struct ext4_sblock *s, uint32_t v)
  * @param   s superblock descriptor
  * @param   v feature to check
  * @return  true if feature is supported*/
-static inline bool ext4_sb_check_feature_compatible(struct ext4_sblock *s,
-    uint32_t v)
+static inline bool ext4_sb_has_feature_compatible(struct ext4_sblock *s,
+                                                  uint32_t v)
 {
     return to_le32(s->features_compatible) & v;
 }
 
-
 /**@brief   Support check of feature incompatible.
  * @param   s superblock descriptor
  * @param   v feature to check
  * @return  true if feature is supported*/
-static inline bool ext4_sb_check_feature_incompatible(struct ext4_sblock *s,
-    uint32_t v)
+static inline bool ext4_sb_has_feature_incompatible(struct ext4_sblock *s,
+                                                    uint32_t v)
 {
     return to_le32(s->features_incompatible) & v;
 }
 
-
 /**@brief   Support check of read only flag.
  * @param   s superblock descriptor
  * @param   v flag to check
  * @return  true if flag is supported*/
-static inline bool ext4_sb_check_read_only(struct ext4_sblock *s, uint32_t v)
+static inline bool ext4_sb_has_feature_read_only(struct ext4_sblock *s,
+                                                 uint32_t v)
 {
     return to_le32(s->features_read_only) & v;
 }
 
+/**@brief   Block group to flex group.
+ * @param   s superblock descriptor
+ * @param   block_group block group
+ * @return  flex group id*/
+static inline uint32_t ext4_sb_bg_to_flex(struct ext4_sblock *s,
+                                          uint32_t block_group)
+{
+    return block_group >> to_le32(s->log_groups_per_flex);
+}
+
+/**@brief   Flex block group size.
+ * @param   s superblock descriptor
+ * @return  flex bg size*/
+static inline uint32_t ext4_sb_flex_bg_size(struct ext4_sblock *s)
+{
+    return 1 << to_le32(s->log_groups_per_flex);
+}
+
+/**@brief   Return first meta block group id.
+ * @param   s superblock descriptor
+ * @return  first meta_bg id */
+static inline uint32_t ext4_sb_first_meta_bg(struct ext4_sblock *s)
+{
+    return to_le32(s->first_meta_bg);
+}
+
 /**************************More complex functions****************************/
 
 /**@brief   Returns a block group count.
@@ -165,23 +187,34 @@ uint32_t ext4_inodes_in_group_cnt(struct ext4_sblock *s, uint32_t bgid);
  * @param   bdev block device descriptor.
  * @param   s superblock descruptor
  * @return  Standard error code */
-int    ext4_sb_write(struct ext4_blockdev *bdev, struct ext4_sblock *s);
+int ext4_sb_write(struct ext4_blockdev *bdev, struct ext4_sblock *s);
 
 /**@brief   Superblock read.
  * @param   bdev block device descriptor.
  * @param   s superblock descruptor
  * @return  Standard error code */
-int    ext4_sb_read(struct ext4_blockdev *bdev, struct ext4_sblock *s);
+int ext4_sb_read(struct ext4_blockdev *bdev, struct ext4_sblock *s);
 
 /**@brief   Superblock simple validation.
  * @param   s superblock dsecriptor
  * @return  true if OK*/
 bool ext4_sb_check(struct ext4_sblock *s);
 
+/**@brief   Superblock presence in block group.
+ * @param   s superblock dsecriptor
+ * @param   block_group block group id
+ * @return  true if block group has superblock*/
+bool ext4_sb_is_super_in_bg(struct ext4_sblock *s, uint32_t block_group);
+
+/**@brief   TODO:*/
+uint32_t ext4_bg_num_gdb(struct ext4_sblock *s, uint32_t group);
+
+/**@brief   TODO:*/
+uint32_t ext4_num_base_meta_clusters(struct ext4_sblock *s,
+                                     uint32_t block_group);
 
 #endif /* EXT4_SUPER_H_ */
 
 /**
  * @}
  */
-