1 files changed, 36 insertions, 0 deletions

diff --git a/include/linux/fmc-sdb.h b/include/linux/fmc-sdb.h
new file mode 100644
index 000000000000..1974317a9b3d
--- /dev/null
+++ b/include/linux/fmc-sdb.h
@@ -0,0 +1,36 @@
+/*
+ * This file is separate from sdb.h, because I want that one to remain
+ * unchanged (as far as possible) from the official sdb distribution
+ *
+ * This file and associated functionality are a playground for me to
+ * understand stuff which will later be implemented in more generic places.
+ */
+#include <linux/sdb.h>
+
+/* This is the union of all currently defined types */
+union sdb_record {
+        struct sdb_interconnect ic;
+        struct sdb_device dev;
+        struct sdb_bridge bridge;
+        struct sdb_integration integr;
+        struct sdb_empty empty;
+};
+
+struct fmc_device;
+
+/* Every sdb table is turned into this structure */
+struct sdb_array {
+        int len;
+        int level;
+        unsigned long baseaddr;
+        struct fmc_device *fmc;         /* the device that hosts it */
+        struct sdb_array *parent;       /* NULL at root */
+        union sdb_record *record;       /* copies of the struct */
+        struct sdb_array **subtree;     /* only valid for bridge items */
+};
+
+extern int fmc_scan_sdb_tree(struct fmc_device *fmc, unsigned long address);
+extern void fmc_show_sdb_tree(const struct fmc_device *fmc);
+extern signed long fmc_find_sdb_device(struct sdb_array *tree, uint64_t vendor,
+                                       uint32_t device, unsigned long *sz);
+extern int fmc_free_sdb_tree(struct fmc_device *fmc);