/** * struct rpmsg_device_ops - indirection table for the rpmsg_device operations * @create_channel: create backend-specific channel, optional * @release_channel: release backend-specific channel, optional * @create_ept: create backend-specific endpoint, required * @announce_create: announce presence of new channel, optional * @announce_destroy: announce destruction of channel, optional * * Indirection table for the operations that a rpmsg backend should implement. * @announce_create and @announce_destroy are optional as the backend might * advertise new channels implicitly by creating the endpoints.
*/ struct rpmsg_device_ops { struct rpmsg_device *(*create_channel)(struct rpmsg_device *rpdev, struct rpmsg_channel_info *chinfo); int (*release_channel)(struct rpmsg_device *rpdev, struct rpmsg_channel_info *chinfo); struct rpmsg_endpoint *(*create_ept)(struct rpmsg_device *rpdev,
rpmsg_rx_cb_t cb, void *priv, struct rpmsg_channel_info chinfo);
int (*announce_create)(struct rpmsg_device *rpdev); int (*announce_destroy)(struct rpmsg_device *rpdev);
};
/** * struct rpmsg_endpoint_ops - indirection table for rpmsg_endpoint operations * @destroy_ept: see @rpmsg_destroy_ept(), required * @send: see @rpmsg_send(), required * @sendto: see @rpmsg_sendto(), optional * @trysend: see @rpmsg_trysend(), required * @trysendto: see @rpmsg_trysendto(), optional * @poll: see @rpmsg_poll(), optional * @set_flow_control: see @rpmsg_set_flow_control(), optional * @get_mtu: see @rpmsg_get_mtu(), optional * * Indirection table for the operations that a rpmsg backend should implement. * In addition to @destroy_ept, the backend must at least implement @send and * @trysend, while the variants sending data off-channel are optional.
*/ struct rpmsg_endpoint_ops { void (*destroy_ept)(struct rpmsg_endpoint *ept);
int (*send)(struct rpmsg_endpoint *ept, void *data, int len); int (*sendto)(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
int (*trysend)(struct rpmsg_endpoint *ept, void *data, int len); int (*trysendto)(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
__poll_t (*poll)(struct rpmsg_endpoint *ept, struct file *filp,
poll_table *wait); int (*set_flow_control)(struct rpmsg_endpoint *ept, bool pause, u32 dst);
ssize_t (*get_mtu)(struct rpmsg_endpoint *ept);
};
struct rpmsg_device *rpmsg_create_channel(struct rpmsg_device *rpdev, struct rpmsg_channel_info *chinfo); int rpmsg_release_channel(struct rpmsg_device *rpdev, struct rpmsg_channel_info *chinfo); /** * rpmsg_ctrldev_register_device() - register a char device for control based on rpdev * @rpdev: prepared rpdev to be used for creating endpoints * * This function wraps rpmsg_register_device() preparing the rpdev for use as * basis for the rpmsg chrdev.
*/ staticinlineint rpmsg_ctrldev_register_device(struct rpmsg_device *rpdev)
{ return rpmsg_register_device_override(rpdev, "rpmsg_ctrl");
}
#endif
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