1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * This file is separate from sdb.h, because I want that one to remain
4  * unchanged (as far as possible) from the official sdb distribution
5  *
6  * This file and associated functionality are a playground for me to
7  * understand stuff which will later be implemented in more generic places.
8  */
9 #include <linux/sdb.h>
10 
11 /* This is the union of all currently defined types */
12 union sdb_record {
13 	struct sdb_interconnect ic;
14 	struct sdb_device dev;
15 	struct sdb_bridge bridge;
16 	struct sdb_integration integr;
17 	struct sdb_empty empty;
18 	struct sdb_synthesis synthesis;
19 	struct sdb_repo_url repo_url;
20 };
21 
22 struct fmc_device;
23 
24 /* Every sdb table is turned into this structure */
25 struct sdb_array {
26 	int len;
27 	int level;
28 	unsigned long baseaddr;
29 	struct fmc_device *fmc;		/* the device that hosts it */
30 	struct sdb_array *parent;	/* NULL at root */
31 	union sdb_record *record;	/* copies of the struct */
32 	struct sdb_array **subtree;	/* only valid for bridge items */
33 };
34 
35 extern int fmc_scan_sdb_tree(struct fmc_device *fmc, unsigned long address);
36 extern void fmc_show_sdb_tree(const struct fmc_device *fmc);
37 extern signed long fmc_find_sdb_device(struct sdb_array *tree, uint64_t vendor,
38 				       uint32_t device, unsigned long *sz);
39 extern int fmc_free_sdb_tree(struct fmc_device *fmc);
40