1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | |
3 | #ifndef _LINUX_RPMSG_NS_H |
4 | #define _LINUX_RPMSG_NS_H |
5 | |
6 | #include <linux/mod_devicetable.h> |
7 | #include <linux/rpmsg.h> |
8 | #include <linux/rpmsg/byteorder.h> |
9 | #include <linux/types.h> |
10 | |
11 | /** |
12 | * struct rpmsg_ns_msg - dynamic name service announcement message |
13 | * @name: name of remote service that is published |
14 | * @addr: address of remote service that is published |
15 | * @flags: indicates whether service is created or destroyed |
16 | * |
17 | * This message is sent across to publish a new service, or announce |
18 | * about its removal. When we receive these messages, an appropriate |
19 | * rpmsg channel (i.e device) is created/destroyed. In turn, the ->probe() |
20 | * or ->remove() handler of the appropriate rpmsg driver will be invoked |
21 | * (if/as-soon-as one is registered). |
22 | */ |
23 | struct rpmsg_ns_msg { |
24 | char name[RPMSG_NAME_SIZE]; |
25 | __rpmsg32 addr; |
26 | __rpmsg32 flags; |
27 | } __packed; |
28 | |
29 | /** |
30 | * enum rpmsg_ns_flags - dynamic name service announcement flags |
31 | * |
32 | * @RPMSG_NS_CREATE: a new remote service was just created |
33 | * @RPMSG_NS_DESTROY: a known remote service was just destroyed |
34 | */ |
35 | enum rpmsg_ns_flags { |
36 | RPMSG_NS_CREATE = 0, |
37 | RPMSG_NS_DESTROY = 1, |
38 | }; |
39 | |
40 | /* Address 53 is reserved for advertising remote services */ |
41 | #define RPMSG_NS_ADDR (53) |
42 | |
43 | int rpmsg_ns_register_device(struct rpmsg_device *rpdev); |
44 | |
45 | #endif |
46 | |