struct virtproc_info;
/**
- * rpmsg_channel - devices that belong to the rpmsg bus are called channels
+ * struct rpmsg_channel_info - channel info representation
+ * @name: name of service
+ * @src: local address
+ * @dst: destination address
+ */
+struct rpmsg_channel_info {
+ char name[RPMSG_NAME_SIZE];
+ u32 src;
+ u32 dst;
+};
+
+/**
+ * rpmsg_device - device that belong to the rpmsg bus
* @vrp: the remote processor this channel belongs to
* @dev: the device struct
* @id: device id (used to match between rpmsg drivers and devices)
* @ept: the rpmsg endpoint of this channel
* @announce: if set, rpmsg will announce the creation/removal of this channel
*/
-struct rpmsg_channel {
+struct rpmsg_device {
struct virtproc_info *vrp;
struct device dev;
struct rpmsg_device_id id;
bool announce;
};
-typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32);
+typedef void (*rpmsg_rx_cb_t)(struct rpmsg_device *, void *, int, void *, u32);
/**
* struct rpmsg_endpoint - binds a local rpmsg address to its user
* create additional endpoints by themselves (see rpmsg_create_ept()).
*/
struct rpmsg_endpoint {
- struct rpmsg_channel *rpdev;
+ struct rpmsg_device *rpdev;
struct kref refcount;
rpmsg_rx_cb_t cb;
struct mutex cb_lock;
struct rpmsg_driver {
struct device_driver drv;
const struct rpmsg_device_id *id_table;
- int (*probe)(struct rpmsg_channel *dev);
- void (*remove)(struct rpmsg_channel *dev);
- void (*callback)(struct rpmsg_channel *, void *, int, void *, u32);
+ int (*probe)(struct rpmsg_device *dev);
+ void (*remove)(struct rpmsg_device *dev);
+ void (*callback)(struct rpmsg_device *, void *, int, void *, u32);
};
-int register_rpmsg_device(struct rpmsg_channel *dev);
-void unregister_rpmsg_device(struct rpmsg_channel *dev);
+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);
void unregister_rpmsg_driver(struct rpmsg_driver *drv);
void rpmsg_destroy_ept(struct rpmsg_endpoint *);
-struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_channel *,
- rpmsg_rx_cb_t cb, void *priv, u32 addr);
+struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *,
+ rpmsg_rx_cb_t cb, void *priv,
+ struct rpmsg_channel_info chinfo);
int
-rpmsg_send_offchannel_raw(struct rpmsg_channel *, u32, u32, void *, int, bool);
+rpmsg_send_offchannel_raw(struct rpmsg_device *, u32, u32, void *, int, bool);
/* use a macro to avoid include chaining to get THIS_MODULE */
#define register_rpmsg_driver(drv) \
/**
* rpmsg_send() - send a message across to the remote processor
- * @rpdev: the rpmsg channel
+ * @ept: the rpmsg endpoint
* @data: payload of message
* @len: length of payload
*
- * This function sends @data of length @len on the @rpdev channel.
- * The message will be sent to the remote processor which the @rpdev
- * channel belongs to, using @rpdev's source and destination addresses.
+ * This function sends @data of length @len on the @ept endpoint.
+ * The message will be sent to the remote processor which the @ept
+ * endpoint belongs to, using @ept's address and its associated rpmsg
+ * device destination addresses.
* In case there are no TX buffers available, the function will block until
* one becomes available, or a timeout of 15 seconds elapses. When the latter
* happens, -ERESTARTSYS is returned.
*
* Returns 0 on success and an appropriate error value on failure.
*/
-static inline int rpmsg_send(struct rpmsg_channel *rpdev, void *data, int len)
+static inline int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
{
- u32 src = rpdev->src, dst = rpdev->dst;
+ struct rpmsg_device *rpdev = ept->rpdev;
+ u32 src = ept->addr, dst = rpdev->dst;
return rpmsg_send_offchannel_raw(rpdev, src, dst, data, len, true);
}
/**
* rpmsg_sendto() - send a message across to the remote processor, specify dst
- * @rpdev: the rpmsg channel
+ * @ept: the rpmsg endpoint
* @data: payload of message
* @len: length of payload
* @dst: destination address
*
* This function sends @data of length @len to the remote @dst address.
- * The message will be sent to the remote processor which the @rpdev
- * channel belongs to, using @rpdev's source address.
+ * The message will be sent to the remote processor which the @ept
+ * endpoint belongs to, using @ept's address as source.
* In case there are no TX buffers available, the function will block until
* one becomes available, or a timeout of 15 seconds elapses. When the latter
* happens, -ERESTARTSYS is returned.
* Returns 0 on success and an appropriate error value on failure.
*/
static inline
-int rpmsg_sendto(struct rpmsg_channel *rpdev, void *data, int len, u32 dst)
+int rpmsg_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
{
- u32 src = rpdev->src;
+ struct rpmsg_device *rpdev = ept->rpdev;
+ u32 src = ept->addr;
return rpmsg_send_offchannel_raw(rpdev, src, dst, data, len, true);
}
/**
* rpmsg_send_offchannel() - send a message using explicit src/dst addresses
- * @rpdev: the rpmsg channel
+ * @ept: the rpmsg endpoint
* @src: source address
* @dst: destination address
* @data: payload of message
*
* This function sends @data of length @len to the remote @dst address,
* and uses @src as the source address.
- * The message will be sent to the remote processor which the @rpdev
- * channel belongs to.
+ * The message will be sent to the remote processor which the @ept
+ * endpoint belongs to.
* In case there are no TX buffers available, the function will block until
* one becomes available, or a timeout of 15 seconds elapses. When the latter
* happens, -ERESTARTSYS is returned.
* Returns 0 on success and an appropriate error value on failure.
*/
static inline
-int rpmsg_send_offchannel(struct rpmsg_channel *rpdev, u32 src, u32 dst,
- void *data, int len)
+int rpmsg_send_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
+ void *data, int len)
{
+ struct rpmsg_device *rpdev = ept->rpdev;
+
return rpmsg_send_offchannel_raw(rpdev, src, dst, data, len, true);
}
/**
* rpmsg_send() - send a message across to the remote processor
- * @rpdev: the rpmsg channel
+ * @ept: the rpmsg endpoint
* @data: payload of message
* @len: length of payload
*
- * This function sends @data of length @len on the @rpdev channel.
- * The message will be sent to the remote processor which the @rpdev
- * channel belongs to, using @rpdev's source and destination addresses.
+ * This function sends @data of length @len on the @ept endpoint.
+ * The message will be sent to the remote processor which the @ept
+ * endpoint belongs to, using @ept's address as source and its associated
+ * rpdev's address as destination.
* In case there are no TX buffers available, the function will immediately
* return -ENOMEM without waiting until one becomes available.
*
* Returns 0 on success and an appropriate error value on failure.
*/
static inline
-int rpmsg_trysend(struct rpmsg_channel *rpdev, void *data, int len)
+int rpmsg_trysend(struct rpmsg_endpoint *ept, void *data, int len)
{
- u32 src = rpdev->src, dst = rpdev->dst;
+ struct rpmsg_device *rpdev = ept->rpdev;
+ u32 src = ept->addr, dst = rpdev->dst;
return rpmsg_send_offchannel_raw(rpdev, src, dst, data, len, false);
}
/**
* rpmsg_sendto() - send a message across to the remote processor, specify dst
- * @rpdev: the rpmsg channel
+ * @ept: the rpmsg endpoint
* @data: payload of message
* @len: length of payload
* @dst: destination address
*
* This function sends @data of length @len to the remote @dst address.
- * The message will be sent to the remote processor which the @rpdev
- * channel belongs to, using @rpdev's source address.
+ * The message will be sent to the remote processor which the @ept
+ * endpoint belongs to, using @ept's address as source.
* In case there are no TX buffers available, the function will immediately
* return -ENOMEM without waiting until one becomes available.
*
* Returns 0 on success and an appropriate error value on failure.
*/
static inline
-int rpmsg_trysendto(struct rpmsg_channel *rpdev, void *data, int len, u32 dst)
+int rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
{
- u32 src = rpdev->src;
+ struct rpmsg_device *rpdev = ept->rpdev;
+ u32 src = ept->addr;
return rpmsg_send_offchannel_raw(rpdev, src, dst, data, len, false);
}
/**
* rpmsg_send_offchannel() - send a message using explicit src/dst addresses
- * @rpdev: the rpmsg channel
+ * @ept: the rpmsg endpoint
* @src: source address
* @dst: destination address
* @data: payload of message
*
* This function sends @data of length @len to the remote @dst address,
* and uses @src as the source address.
- * The message will be sent to the remote processor which the @rpdev
- * channel belongs to.
+ * The message will be sent to the remote processor which the @ept
+ * endpoint belongs to.
* In case there are no TX buffers available, the function will immediately
* return -ENOMEM without waiting until one becomes available.
*
* Returns 0 on success and an appropriate error value on failure.
*/
static inline
-int rpmsg_trysend_offchannel(struct rpmsg_channel *rpdev, u32 src, u32 dst,
- void *data, int len)
+int rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src, u32 dst,
+ void *data, int len)
{
+ struct rpmsg_device *rpdev = ept->rpdev;
+
return rpmsg_send_offchannel_raw(rpdev, src, dst, data, len, false);
}
projects / cascardo / linux.git / blobdiff