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