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drivers/rpmsg_port: support release the rx buffer in ept->cb

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Now we can release the rx buffer in ept->cb, ept->cb should copy
the rx buffer it's private buffer and then return
RPMSG_SUCCESS_BUFFER_RETURNED.

Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
This commit is contained in:
Bowen Wang
2025-01-24 00:41:28 +08:00
committed by Alan C. Assis
parent 59259eb7f2
commit 16763e4c67
1 changed files with 7 additions and 3 deletions
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drivers/rpmsg/rpmsg_port.c
+7 -3
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@@ -406,7 +406,7 @@ static void rpmsg_port_rx_callback(FAR struct rpmsg_port_s *port,
FAR struct rpmsg_hdr *rphdr = (FAR struct rpmsg_hdr *)hdr->buf;
FAR void *data = RPMSG_LOCATE_DATA(rphdr);
FAR struct rpmsg_endpoint *ept;
int status;
int status = 0;
metal_mutex_acquire(&rdev->lock);
ept = rpmsg_get_ept_from_addr(rdev, rphdr->dst);
@@ -422,13 +422,17 @@ static void rpmsg_port_rx_callback(FAR struct rpmsg_port_s *port,
}
status = ept->cb(ept, data, rphdr->len, rphdr->src, ept->priv);
if (status < 0)
if (status < 0 && status != RPMSG_SUCCESS_BUFFER_RELEASED)
{
RPMSG_ASSERT(0, "unexpected callback status\n");
}
}
rpmsg_port_release_rx_buffer(rdev, data);
if (status != RPMSG_SUCCESS_BUFFER_RELEASED)
{
rpmsg_port_release_rx_buffer(rdev, data);
}
metal_mutex_acquire(&rdev->lock);
rpmsg_ept_decref(ept);
metal_mutex_release(&rdev->lock);