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rpmsg: Provide function stubs for API 

Provide function stubs for the rpmsg API to allow clients to be compile
tested without having CONFIG_RPMSG enabled.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
hifive-unleashed-5.1
Bjorn Andersson 2016-10-21 10:25:37 -07:00
parent 93e9324431
commit 2c8a570880
1 changed files with 113 additions and 10 deletions
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123
include/linux/rpmsg.h
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@ -37,6 +37,7 @@
#include <linux/types.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/mod_devicetable.h>
#include <linux/kref.h>
#include <linux/mutex.h>
@ -134,6 +135,8 @@ struct rpmsg_driver {
int (*callback)(struct rpmsg_device *, void *, int, void *, u32);
};
#if IS_ENABLED(CONFIG_RPMSG)
int register_rpmsg_device(struct rpmsg_device *dev);
void unregister_rpmsg_device(struct rpmsg_device *dev);
int __register_rpmsg_driver(struct rpmsg_driver *drv, struct module *owner);
@ -143,6 +146,116 @@ struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *,
rpmsg_rx_cb_t cb, void *priv,
struct rpmsg_channel_info chinfo);
int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len);
int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
int rpmsg_send_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
void *data, int len);
int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len);
int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
int rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
void *data, int len);
#else
static inline int register_rpmsg_device(struct rpmsg_device *dev)
{
return -ENXIO;
}
static inline void unregister_rpmsg_device(struct rpmsg_device *dev)
{
/* This shouldn't be possible */
WARN_ON(1);
}
static inline int __register_rpmsg_driver(struct rpmsg_driver *drv,
struct module *owner)
{
/* This shouldn't be possible */
WARN_ON(1);
return -ENXIO;
}
static inline void unregister_rpmsg_driver(struct rpmsg_driver *drv)
{
/* This shouldn't be possible */
WARN_ON(1);
}
static inline void rpmsg_destroy_ept(struct rpmsg_endpoint *ept)
{
/* This shouldn't be possible */
WARN_ON(1);
}
static inline struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *rpdev,
rpmsg_rx_cb_t cb,
void *priv,
struct rpmsg_channel_info chinfo)
{
/* This shouldn't be possible */
WARN_ON(1);
return ERR_PTR(-ENXIO);
}
static inline int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
{
/* This shouldn't be possible */
WARN_ON(1);
return -ENXIO;
}
static inline int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len,
u32 dst)
{
/* This shouldn't be possible */
WARN_ON(1);
return -ENXIO;
}
static inline int rpmsg_send_offchannel(struct rpmsg_endpoint *ept, u32 src,
u32 dst, void *data, int len)
{
/* This shouldn't be possible */
WARN_ON(1);
return -ENXIO;
}
static inline int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
{
/* This shouldn't be possible */
WARN_ON(1);
return -ENXIO;
}
static inline int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data,
int len, u32 dst)
{
/* This shouldn't be possible */
WARN_ON(1);
return -ENXIO;
}
static inline int rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src,
u32 dst, void *data, int len)
{
/* This shouldn't be possible */
WARN_ON(1);
return -ENXIO;
}
#endif /* IS_ENABLED(CONFIG_RPMSG) */
/* use a macro to avoid include chaining to get THIS_MODULE */
#define register_rpmsg_driver(drv) \
__register_rpmsg_driver(drv, THIS_MODULE)
@ -159,14 +272,4 @@ struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *,
module_driver(__rpmsg_driver, register_rpmsg_driver, \
unregister_rpmsg_driver)
int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len);
int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
int rpmsg_send_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
void *data, int len);
int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len);
int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
int rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
void *data, int len);
#endif /* _LINUX_RPMSG_H */