kernel-ark/include/net/caif/cfsrvl.h
sjur.brandeland@stericsson.com 43e3692101 caif: Move refcount from service layer to sock and dev.
Instead of having reference counts in caif service layers,
we hook into existing refcount handling in socket layer and netdevice.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-15 17:45:55 -04:00

66 lines
1.8 KiB
C

/*
* Copyright (C) ST-Ericsson AB 2010
* Author: Sjur Brendeland/sjur.brandeland@stericsson.com
* License terms: GNU General Public License (GPL) version 2
*/
#ifndef CFSRVL_H_
#define CFSRVL_H_
#include <linux/list.h>
#include <linux/stddef.h>
#include <linux/types.h>
#include <linux/kref.h>
#include <linux/rculist.h>
struct cfsrvl {
struct cflayer layer;
bool open;
bool phy_flow_on;
bool modem_flow_on;
bool supports_flowctrl;
void (*release)(struct cflayer *layer);
struct dev_info dev_info;
void (*hold)(struct cflayer *lyr);
void (*put)(struct cflayer *lyr);
struct rcu_head rcu;
};
struct cflayer *cfvei_create(u8 linkid, struct dev_info *dev_info);
struct cflayer *cfdgml_create(u8 linkid, struct dev_info *dev_info);
struct cflayer *cfutill_create(u8 linkid, struct dev_info *dev_info);
struct cflayer *cfvidl_create(u8 linkid, struct dev_info *dev_info);
struct cflayer *cfrfml_create(u8 linkid, struct dev_info *dev_info,
int mtu_size);
struct cflayer *cfdbgl_create(u8 linkid, struct dev_info *dev_info);
void cfsrvl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,
int phyid);
bool cfsrvl_phyid_match(struct cflayer *layer, int phyid);
void cfsrvl_init(struct cfsrvl *service,
u8 channel_id,
struct dev_info *dev_info,
bool supports_flowctrl);
bool cfsrvl_ready(struct cfsrvl *service, int *err);
u8 cfsrvl_getphyid(struct cflayer *layer);
static inline void cfsrvl_get(struct cflayer *layr)
{
struct cfsrvl *s = container_of(layr, struct cfsrvl, layer);
if (layr == NULL || layr->up == NULL || s->hold == NULL)
return;
s->hold(layr->up);
}
static inline void cfsrvl_put(struct cflayer *layr)
{
struct cfsrvl *s = container_of(layr, struct cfsrvl, layer);
if (layr == NULL || layr->up == NULL || s->hold == NULL)
return;
s->put(layr->up);
}
#endif /* CFSRVL_H_ */