Added smart polling and preparation for erase suspend.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9463 35acf78f-673a-0410-8e92-d51de3d6d3f4

2 files changed, 54 insertions, 0 deletions

diff --git a/os/ex/subsystems/mfs/mfs.c b/os/ex/subsystems/mfs/mfs.c
index 7380c34a3..00488db1c 100644
--- a/os/ex/subsystems/mfs/mfs.c
+++ b/os/ex/subsystems/mfs/mfs.c
@@ -33,6 +33,10 @@
 /* Driver local definitions.                                                 */
 /*===========================================================================*/
 
+#define MFS_BANK_MAGIC1                 0x35A1EC13
+#define MFS_BANK_MAGIC2                 0x0FE14991
+#define MFS_HEADER_MAGIC                0x1AC7002E
+
 /*===========================================================================*/
 /* Driver exported variables.                                                */
 /*===========================================================================*/
diff --git a/os/ex/subsystems/mfs/mfs.h b/os/ex/subsystems/mfs/mfs.h
index a47c25c47..7abbde0da 100644
--- a/os/ex/subsystems/mfs/mfs.h
+++ b/os/ex/subsystems/mfs/mfs.h
@@ -62,6 +62,56 @@ typedef enum {
 } mfs_state_t;
 
 /**
+ * @brief   Bank header.
+ * @note    The header resides in the first 16 bytes of a bank extending
+ *          to the next page boundary.
+ */
+typedef struct {
+  /**
+   * @brief   Bank magic 1.
+   */
+  uint32_t                  magic1;
+  /**
+   * @brief   Bank magic 2.
+   */
+  uint32_t                  magic2;
+  /**
+   * @brief   Usage counter of the bank.
+   */
+  uint32_t                  counter;
+  /**
+   * @brief   First data element.
+   */
+  flash_address_t           next;
+} mfs_bank_header_t;
+
+/**
+ * @brief   Data block header.
+ */
+typedef union {
+  struct {
+    /**
+     * @brief   Data header magic.
+     */
+    uint32_t                magic;
+    /**
+     * @brief   Data identifier.
+     */
+    uint32_t                id;
+    /**
+     * @brief   Data size.
+     */
+    uint32_t                size;
+    /**
+     * @brief   Data CRC.
+     */
+    uint32_t                crc;
+  } fields;
+  uint8_t                   h8[16];
+  uint32_t                  h32[4];
+} mfs_data_header_t;
+
+/**
  * @brief   Type of a MFS configuration structure.
  */
 typedef struct {