include/linux/fmc-sdb.h

   1 /*
   2  * This file is separate from sdb.h, because I want that one to remain
   3  * unchanged (as far as possible) from the official sdb distribution
   4  *
   5  * This file and associated functionality are a playground for me to
   6  * understand stuff which will later be implemented in more generic places.
   7  */
   8 #include <linux/sdb.h>
   9
  10 /* This is the union of all currently defined types */
  11 union sdb_record {
  12         struct sdb_interconnect ic;
  13         struct sdb_device dev;
  14         struct sdb_bridge bridge;
  15         struct sdb_integration integr;
  16         struct sdb_empty empty;
  17 };
  18
  19 struct fmc_device;
  20
  21 /* Every sdb table is turned into this structure */
  22 struct sdb_array {
  23         int len;
  24         int level;
  25         unsigned long baseaddr;
  26         struct fmc_device *fmc;         /* the device that hosts it */
  27         struct sdb_array *parent;       /* NULL at root */
  28         union sdb_record *record;       /* copies of the struct */
  29         struct sdb_array **subtree;     /* only valid for bridge items */
  30 };
  31
  32 extern int fmc_scan_sdb_tree(struct fmc_device *fmc, unsigned long address);
  33 extern void fmc_show_sdb_tree(const struct fmc_device *fmc);
  34 extern signed long fmc_find_sdb_device(struct sdb_array *tree, uint64_t vendor,
  35                                        uint32_t device, unsigned long *sz);
  36 extern int fmc_free_sdb_tree(struct fmc_device *fmc);