/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_RPMSG_NS_H #define _LINUX_RPMSG_NS_H #include <linux/mod_devicetable.h> #include <linux/rpmsg.h> #include <linux/rpmsg/byteorder.h> #include <linux/types.h> /** * struct rpmsg_ns_msg - dynamic name service announcement message * @name: name of remote service that is published * @addr: address of remote service that is published * @flags: indicates whether service is created or destroyed * * This message is sent across to publish a new service, or announce * about its removal. When we receive these messages, an appropriate * rpmsg channel (i.e device) is created/destroyed. In turn, the ->probe() * or ->remove() handler of the appropriate rpmsg driver will be invoked * (if/as-soon-as one is registered). */ struct rpmsg_ns_msg { char name[RPMSG_NAME_SIZE]; __rpmsg32 addr; __rpmsg32 flags; } __packed; /** * enum rpmsg_ns_flags - dynamic name service announcement flags * * @RPMSG_NS_CREATE: a new remote service was just created * @RPMSG_NS_DESTROY: a known remote service was just destroyed */ enum rpmsg_ns_flags { RPMSG_NS_CREATE = 0, RPMSG_NS_DESTROY = 1, }; /* Address 53 is reserved for advertising remote services */ #define RPMSG_NS_ADDR (53) int rpmsg_ns_register_device(struct rpmsg_device *rpdev); #endif