[PATCH v6 6/8] rpmsg: virtio: Add rpmsg channel device ops

Mathieu Poirier
2020-11-18T21:37:53Z

From: Arnaud Pouliquen <arnaud.pouliquen@st.com>

Implement the create and release of the RPMsg channel
for the RPMsg virtio bus.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
---
drivers/rpmsg/virtio_rpmsg_bus.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 2253936593c5..6ec299f7f790 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -151,6 +151,8 @@ static int virtio_rpmsg_trysendto(struct rpmsg_endpoint *ept, void *data,
int len, u32 dst);
static int virtio_rpmsg_trysend_offchannel(struct rpmsg_endpoint *ept, u32 src,
u32 dst, void *data, int len);
+static struct rpmsg_device *__rpmsg_create_channel(struct virtproc_info *vrp,
+ struct rpmsg_channel_info *chinfo);

static const struct rpmsg_endpoint_ops virtio_endpoint_ops = {
.destroy_ept = virtio_rpmsg_destroy_ept,
@@ -255,6 +257,24 @@ static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp,
return NULL;
}

+static struct rpmsg_device *virtio_rpmsg_create_channel(struct rpmsg_device *rpdev,
+ struct rpmsg_channel_info *chinfo)
+{
+ struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);
+ struct virtproc_info *vrp = vch->vrp;
+
+ return __rpmsg_create_channel(vrp, chinfo);
+}
+
+static int virtio_rpmsg_release_channel(struct rpmsg_device *rpdev,
+ struct rpmsg_channel_info *chinfo)
+{
+ struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);
+ struct virtproc_info *vrp = vch->vrp;
+
+ return rpmsg_unregister_device(&vrp->vdev->dev, chinfo);
+}
+
static struct rpmsg_endpoint *virtio_rpmsg_create_ept(struct rpmsg_device *rpdev,
rpmsg_rx_cb_t cb,
void *priv,
@@ -347,6 +367,8 @@ static int virtio_rpmsg_announce_destroy(struct rpmsg_device *rpdev)
}

static const struct rpmsg_device_ops virtio_rpmsg_ops = {
+ .create_channel = virtio_rpmsg_create_channel,
+ .release_channel = virtio_rpmsg_release_channel,
.create_ept = virtio_rpmsg_create_ept,
.announce_create = virtio_rpmsg_announce_create,
.announce_destroy = virtio_rpmsg_announce_destroy,
--
2.25.1