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cfsrvl.h
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1 /*
2  * Copyright (C) ST-Ericsson AB 2010
3  * Author: Sjur Brendeland/[email protected]
4  * License terms: GNU General Public License (GPL) version 2
5  */
6 
7 #ifndef CFSRVL_H_
8 #define CFSRVL_H_
9 #include <linux/list.h>
10 #include <linux/stddef.h>
11 #include <linux/types.h>
12 #include <linux/kref.h>
13 #include <linux/rculist.h>
14 
15 struct cfsrvl {
16  struct cflayer layer;
17  bool open;
21  void (*release)(struct cflayer *layer);
23  void (*hold)(struct cflayer *lyr);
24  void (*put)(struct cflayer *lyr);
25  struct rcu_head rcu;
26 };
27 
28 struct cflayer *cfvei_create(u8 linkid, struct dev_info *dev_info);
29 struct cflayer *cfdgml_create(u8 linkid, struct dev_info *dev_info);
30 struct cflayer *cfutill_create(u8 linkid, struct dev_info *dev_info);
31 struct cflayer *cfvidl_create(u8 linkid, struct dev_info *dev_info);
32 struct cflayer *cfrfml_create(u8 linkid, struct dev_info *dev_info,
33  int mtu_size);
34 struct cflayer *cfdbgl_create(u8 linkid, struct dev_info *dev_info);
35 
36 void cfsrvl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,
37  int phyid);
38 
39 bool cfsrvl_phyid_match(struct cflayer *layer, int phyid);
40 
41 void cfsrvl_init(struct cfsrvl *service,
42  u8 channel_id,
43  struct dev_info *dev_info,
44  bool supports_flowctrl);
45 bool cfsrvl_ready(struct cfsrvl *service, int *err);
46 u8 cfsrvl_getphyid(struct cflayer *layer);
47 
48 static inline void cfsrvl_get(struct cflayer *layr)
49 {
50  struct cfsrvl *s = container_of(layr, struct cfsrvl, layer);
51  if (layr == NULL || layr->up == NULL || s->hold == NULL)
52  return;
53 
54  s->hold(layr->up);
55 }
56 
57 static inline void cfsrvl_put(struct cflayer *layr)
58 {
59  struct cfsrvl *s = container_of(layr, struct cfsrvl, layer);
60  if (layr == NULL || layr->up == NULL || s->hold == NULL)
61  return;
62 
63  s->put(layr->up);
64 }
65 #endif /* CFSRVL_H_ */