1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) ST-Ericsson AB 2010
4  * Author:	Sjur Brendeland
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;
18 	bool phy_flow_on;
19 	bool modem_flow_on;
20 	bool supports_flowctrl;
21 	void (*release)(struct cflayer *layer);
22 	struct dev_info dev_info;
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 
cfsrvl_get(struct cflayer * layr)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 
cfsrvl_put(struct cflayer * layr)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_ */
66