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authorBjorn Andersson <bjorn.andersson@linaro.org>2016-09-01 15:28:05 -0700
committerBjorn Andersson <bjorn.andersson@linaro.org>2016-09-08 22:15:24 -0700
commitfade037e0fd504cd02f51d280928d89c75527f2e (patch)
treef8497e920119bc4c4889af65c822560e739b4866 /drivers
parent5e619b48677ca8c9fb907c58383859cea78705c9 (diff)
downloadlinux-fade037e0fd504cd02f51d280928d89c75527f2e.tar.bz2
rpmsg: Hide rpmsg indirection tables
Move the device and endpoint indirection tables to the rpmsg internal header file, to hide them from the public API. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/rpmsg/rpmsg_core.c3
-rw-r--r--drivers/rpmsg/rpmsg_internal.h47
2 files changed, 50 insertions, 0 deletions
diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index e1d765a7372c..b6ea9ffa7381 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -20,7 +20,10 @@
#define pr_fmt(fmt) "%s: " fmt, __func__
#include <linux/kernel.h>
+#include <linux/module.h>
#include <linux/rpmsg.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
#include "rpmsg_internal.h"
diff --git a/drivers/rpmsg/rpmsg_internal.h b/drivers/rpmsg/rpmsg_internal.h
index 8ac98fd0bf1d..8075a20f919b 100644
--- a/drivers/rpmsg/rpmsg_internal.h
+++ b/drivers/rpmsg/rpmsg_internal.h
@@ -25,6 +25,53 @@
#define to_rpmsg_device(d) container_of(d, struct rpmsg_device, dev)
#define to_rpmsg_driver(d) container_of(d, struct rpmsg_driver, drv)
+/**
+ * struct rpmsg_device_ops - indirection table for the rpmsg_device operations
+ * @create_ept: create backend-specific endpoint, requried
+ * @announce_create: announce presence of new channel, optional
+ * @announce_destroy: announce destruction of channel, optional
+ *
+ * Indirection table for the operations that a rpmsg backend should implement.
+ * @announce_create and @announce_destroy are optional as the backend might
+ * advertise new channels implicitly by creating the endpoints.
+ */
+struct rpmsg_device_ops {
+ struct rpmsg_endpoint *(*create_ept)(struct rpmsg_device *rpdev,
+ rpmsg_rx_cb_t cb, void *priv,
+ struct rpmsg_channel_info chinfo);
+
+ int (*announce_create)(struct rpmsg_device *ept);
+ int (*announce_destroy)(struct rpmsg_device *ept);
+};
+
+/**
+ * struct rpmsg_endpoint_ops - indirection table for rpmsg_endpoint operations
+ * @destroy_ept: destroy the given endpoint, required
+ * @send: see @rpmsg_send(), required
+ * @sendto: see @rpmsg_sendto(), optional
+ * @send_offchannel: see @rpmsg_send_offchannel(), optional
+ * @trysend: see @rpmsg_trysend(), required
+ * @trysendto: see @rpmsg_trysendto(), optional
+ * @trysend_offchannel: see @rpmsg_trysend_offchannel(), optional
+ *
+ * Indirection table for the operations that a rpmsg backend should implement.
+ * In addition to @destroy_ept, the backend must at least implement @send and
+ * @trysend, while the variants sending data off-channel are optional.
+ */
+struct rpmsg_endpoint_ops {
+ void (*destroy_ept)(struct rpmsg_endpoint *ept);
+
+ int (*send)(struct rpmsg_endpoint *ept, void *data, int len);
+ int (*sendto)(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
+ int (*send_offchannel)(struct rpmsg_endpoint *ept, u32 src, u32 dst,
+ void *data, int len);
+
+ int (*trysend)(struct rpmsg_endpoint *ept, void *data, int len);
+ int (*trysendto)(struct rpmsg_endpoint *ept, void *data, int len, u32 dst);
+ int (*trysend_offchannel)(struct rpmsg_endpoint *ept, u32 src, u32 dst,
+ void *data, int len);
+};
+
int rpmsg_register_device(struct rpmsg_device *rpdev);
int rpmsg_unregister_device(struct device *parent,
struct rpmsg_channel_info *chinfo);