usb: gadget: uvc: Move userspace API definition to public header

The UVC gadget userspace API (V4L2 events and custom ioctls) is defined
in a header internal to the kernel. Move it to a new public header to
make it accessible to userspace.

The UVC_INTF_CONTROL and UVC_INTF_STREAMING macros are not used, so
remove them in the process.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/include/uapi/linux/usb/g_uvc.h b/include/uapi/linux/usb/g_uvc.h
new file mode 100644
index 000000000000..3c9ee3020cbb
--- /dev/null
+++ b/include/uapi/linux/usb/g_uvc.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * g_uvc.h  --  USB Video Class Gadget driver API
+ *
+ * Copyright (C) 2009-2010 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ */
+
+#ifndef __LINUX_USB_G_UVC_H
+#define __LINUX_USB_G_UVC_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include <linux/usb/ch9.h>
+
+#define UVC_EVENT_FIRST                 (V4L2_EVENT_PRIVATE_START + 0)
+#define UVC_EVENT_CONNECT               (V4L2_EVENT_PRIVATE_START + 0)
+#define UVC_EVENT_DISCONNECT            (V4L2_EVENT_PRIVATE_START + 1)
+#define UVC_EVENT_STREAMON              (V4L2_EVENT_PRIVATE_START + 2)
+#define UVC_EVENT_STREAMOFF             (V4L2_EVENT_PRIVATE_START + 3)
+#define UVC_EVENT_SETUP                 (V4L2_EVENT_PRIVATE_START + 4)
+#define UVC_EVENT_DATA                  (V4L2_EVENT_PRIVATE_START + 5)
+#define UVC_EVENT_LAST                  (V4L2_EVENT_PRIVATE_START + 5)
+
+struct uvc_request_data {
+        __s32 length;
+        __u8 data[60];
+};
+
+struct uvc_event {
+        union {
+                enum usb_device_speed speed;
+                struct usb_ctrlrequest req;
+                struct uvc_request_data data;
+        };
+};
+
+#define UVCIOC_SEND_RESPONSE            _IOW('U', 1, struct uvc_request_data)
+
+#endif /* __LINUX_USB_G_UVC_H */