include/net/caif/cfsrvl.h

   1 /*
   2  * Copyright (C) ST-Ericsson AB 2010
   3  * Author:      Sjur Brendeland/sjur.brandeland@stericsson.com
   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
  14 struct cfsrvl {
  15         struct cflayer layer;
  16         bool open;
  17         bool phy_flow_on;
  18         bool modem_flow_on;
  19         bool supports_flowctrl;
  20         void (*release)(struct kref *);
  21         struct dev_info dev_info;
  22         struct kref ref;
  23 };
  24
  25 void cfsrvl_release(struct kref *kref);
  26 struct cflayer *cfvei_create(u8 linkid, struct dev_info *dev_info);
  27 struct cflayer *cfdgml_create(u8 linkid, struct dev_info *dev_info);
  28 struct cflayer *cfutill_create(u8 linkid, struct dev_info *dev_info);
  29 struct cflayer *cfvidl_create(u8 linkid, struct dev_info *dev_info);
  30 struct cflayer *cfrfml_create(u8 linkid, struct dev_info *dev_info,
  31                                 int mtu_size);
  32 struct cflayer *cfdbgl_create(u8 linkid, struct dev_info *dev_info);
  33 bool cfsrvl_phyid_match(struct cflayer *layer, int phyid);
  34 void cfservl_destroy(struct cflayer *layer);
  35 void cfsrvl_init(struct cfsrvl *service,
  36                         u8 channel_id,
  37                         struct dev_info *dev_info,
  38                         bool supports_flowctrl);
  39 bool cfsrvl_ready(struct cfsrvl *service, int *err);
  40 u8 cfsrvl_getphyid(struct cflayer *layer);
  41
  42 static inline void cfsrvl_get(struct cflayer *layr)
  43 {
  44         struct cfsrvl *s;
  45         if (layr == NULL)
  46                 return;
  47         s = container_of(layr, struct cfsrvl, layer);
  48         kref_get(&s->ref);
  49 }
  50
  51 static inline void cfsrvl_put(struct cflayer *layr)
  52 {
  53         struct cfsrvl *s;
  54         if (layr == NULL)
  55                 return;
  56         s = container_of(layr, struct cfsrvl, layer);
  57
  58         WARN_ON(!s->release);
  59         if (s->release)
  60                 kref_put(&s->ref, s->release);
  61 }
  62
  63 #endif                          /* CFSRVL_H_ */