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authorArnaud Pouliquen <arnaud.pouliquen@foss.st.com>2022-01-24 13:25:14 +0300
committerBjorn Andersson <bjorn.andersson@linaro.org>2022-03-13 19:49:53 +0300
commit69265bc12b6567c6aa9550a198b791e876fbfd2c (patch)
tree98b9aa808a76198e0e038afb6959c219a4487b0a /drivers/rpmsg/rpmsg_char.h
parentcbf58250b33e26d7e8e84919ee71eb1129f91f12 (diff)
downloadlinux-69265bc12b6567c6aa9550a198b791e876fbfd2c.tar.xz
rpmsg: char: Export eptdev create and destroy functions
To prepare the split of the code related to the control (ctrldev) and the endpoint (eptdev) devices in 2 separate files: - Rename and export the functions in rpmsg_char.h. - Suppress the dependency with the rpmsg_ctrldev struct in the rpmsg_eptdev_create function. Suggested-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220124102524.295783-2-arnaud.pouliquen@foss.st.com
Diffstat (limited to 'drivers/rpmsg/rpmsg_char.h')
-rw-r--r--drivers/rpmsg/rpmsg_char.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/rpmsg/rpmsg_char.h b/drivers/rpmsg/rpmsg_char.h
new file mode 100644
index 000000000000..117d9cbc52f0
--- /dev/null
+++ b/drivers/rpmsg/rpmsg_char.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2022, STMicroelectronics
+ */
+
+#ifndef __RPMSG_CHRDEV_H__
+#define __RPMSG_CHRDEV_H__
+
+#if IS_ENABLED(CONFIG_RPMSG_CHAR)
+/**
+ * rpmsg_chrdev_eptdev_create() - register char device based on an endpoint
+ * @rpdev: prepared rpdev to be used for creating endpoints
+ * @parent: parent device
+ * @chinfo: associated endpoint channel information.
+ *
+ * This function create a new rpmsg char endpoint device to instantiate a new
+ * endpoint based on chinfo information.
+ */
+int rpmsg_chrdev_eptdev_create(struct rpmsg_device *rpdev, struct device *parent,
+ struct rpmsg_channel_info chinfo);
+
+/**
+ * rpmsg_chrdev_eptdev_destroy() - destroy created char device endpoint.
+ * @data: private data associated to the endpoint device
+ *
+ * This function destroys a rpmsg char endpoint device created by the RPMSG_DESTROY_EPT_IOCTL
+ * control.
+ */
+int rpmsg_chrdev_eptdev_destroy(struct device *dev, void *data);
+
+#else /*IS_ENABLED(CONFIG_RPMSG_CHAR) */
+
+static inline int rpmsg_chrdev_eptdev_create(struct rpmsg_device *rpdev, struct device *parent,
+ struct rpmsg_channel_info chinfo)
+{
+ return -ENXIO;
+}
+
+static inline int rpmsg_chrdev_eptdev_destroy(struct device *dev, void *data)
+{
+ return -ENXIO;
+}
+
+#endif /*IS_ENABLED(CONFIG_RPMSG_CHAR) */
+
+#endif /*__RPMSG_CHRDEV_H__ */