Commit 2c8a5708 authored by Bjorn Andersson's avatar Bjorn Andersson
Browse files

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: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent 93e93244

include/linux/rpmsg.h

+113 −10
Original line number Diff line number Diff line
@@ -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 */