incubator-nuttx/openamp/0010-rpmsg-notify-the-user-when-the-remote-address-is-rec.patch

From 442ccb015805eb5f7d700f80db9893d319ce5781 Mon Sep 17 00:00:00 2001
From: ligd <liguiding1@xiaomi.com>
Date: Tue, 19 Oct 2021 19:45:14 +0800
Subject: [PATCH 10/12] rpmsg: notify the user when the remote address is
 received

Change-Id: I2f0601fb38944e0cfb8888aa397740161b159e40
Signed-off-by: ligd <liguiding1@xiaomi.com>
---
 lib/include/openamp/rpmsg.h | 4 ++++
 lib/rpmsg/rpmsg_virtio.c    | 9 +++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/lib/include/openamp/rpmsg.h open-amp/lib/include/openamp/rpmsg.h
index 6f546e5..10d4f5b 100644
--- a/lib/include/openamp/rpmsg.h
+++ open-amp/lib/include/openamp/rpmsg.h
@@ -57,6 +57,7 @@ struct rpmsg_device;
 /* Returns positive value on success or negative error value on failure */
 typedef int (*rpmsg_ept_cb)(struct rpmsg_endpoint *ept, void *data,
 			    size_t len, uint32_t src, void *priv);
+typedef void (*rpmsg_ns_bound_cb)(struct rpmsg_endpoint *ept);
 typedef void (*rpmsg_ns_unbind_cb)(struct rpmsg_endpoint *ept);
 typedef void (*rpmsg_ns_bind_cb)(struct rpmsg_device *rdev,
 				 const char *name, uint32_t dest);
@@ -69,6 +70,8 @@ typedef void (*rpmsg_ns_bind_cb)(struct rpmsg_device *rdev,
  * @dest_addr: address of the default remote endpoint binded.
  * @cb: user rx callback, return value of this callback is reserved
  *      for future use, for now, only allow RPMSG_SUCCESS as return value.
+ * @ns_bound_cb: end point service bound callback, called when remote
+ *                ept address is received.
  * @ns_unbind_cb: end point service unbind callback, called when remote
  *                ept is destroyed.
  * @node: end point node.
@@ -83,6 +86,7 @@ struct rpmsg_endpoint {
 	uint32_t addr;
 	uint32_t dest_addr;
 	rpmsg_ept_cb cb;
+	rpmsg_ns_bound_cb ns_bound_cb;
 	rpmsg_ns_unbind_cb ns_unbind_cb;
 	struct metal_list node;
 	void *priv;
diff --git a/lib/rpmsg/rpmsg_virtio.c open-amp/lib/rpmsg/rpmsg_virtio.c
index 4f26b01..e55e135 100644
--- a/lib/rpmsg/rpmsg_virtio.c
+++ open-amp/lib/rpmsg/rpmsg_virtio.c
@@ -598,14 +598,19 @@ static int rpmsg_virtio_ns_callback(struct rpmsg_endpoint *ept, void *data,
 			_ept->dest_addr = dest;
 			metal_mutex_release(&rdev->lock);
 			if (_ept->name[0] && rdev->support_ack)
-				rpmsg_send_ns_message(_ept,
-						      RPMSG_NS_CREATE_ACK);
+				rpmsg_send_ns_message(_ept, RPMSG_NS_CREATE_ACK);
+			/* notify application that the endpoint has been bound */
+			if (_ept->ns_bound_cb)
+				_ept->ns_bound_cb(_ept);
 		}
 	} else { /* RPMSG_NS_CREATE_ACK */
 		/* save the received destination address */
 		if (_ept)
 			_ept->dest_addr = dest;
 		metal_mutex_release(&rdev->lock);
+		/* notify application that the endpoint has been bound */
+		if (_ept && _ept->ns_bound_cb)
+			_ept->ns_bound_cb(_ept);
 	}
 
 	return RPMSG_SUCCESS;
-- 
2.25.1