include/net/caif/cfsrvl.h

   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 bool cfsrvl_phyid_match(struct cflayer *layer, int phyid);
  37
  38 void cfsrvl_init(struct cfsrvl *service,
  39                         u8 channel_id,
  40                         struct dev_info *dev_info,
  41                         bool supports_flowctrl);
  42 bool cfsrvl_ready(struct cfsrvl *service, int *err);
  43
  44 static inline void cfsrvl_get(struct cflayer *layr)
  45 {
  46         struct cfsrvl *s = container_of(layr, struct cfsrvl, layer);
  47         if (layr == NULL || layr->up == NULL || s->hold == NULL)
  48                 return;
  49
  50         s->hold(layr->up);
  51 }
  52
  53 static inline void cfsrvl_put(struct cflayer *layr)
  54 {
  55         struct cfsrvl *s = container_of(layr, struct cfsrvl, layer);
  56         if (layr == NULL || layr->up == NULL || s->hold == NULL)
  57                 return;
  58
  59         s->put(layr->up);
  60 }
  61 #endif                          /* CFSRVL_H_ */