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

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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 <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
This commit is contained in:
Laurent Pinchart 2018-05-21 11:28:51 +03:00 • committed by Felipe Balbi
commit d396e47fb5
3 changed files with 45 additions and 40 deletions
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45
drivers/usb/gadget/function/uvc.h
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@ -9,52 +9,20 @@
#ifndef _UVC_GADGET_H_
#define _UVC_GADGET_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)
#define UVC_INTF_CONTROL 0
#define UVC_INTF_STREAMING 1
/* ------------------------------------------------------------------------
* Debugging, printing and logging
*/
#ifdef __KERNEL__
#include <linux/usb.h> /* For usb_endpoint_* */
#include <linux/usb/composite.h>
#include <linux/usb/gadget.h>
#include <linux/usb/g_uvc.h>
#include <linux/videodev2.h>
#include <media/v4l2-fh.h>
#include <media/v4l2-device.h>
#include "uvc_queue.h"
/* ------------------------------------------------------------------------
* Debugging, printing and logging
*/
#define UVC_TRACE_PROBE (1 << 0)
#define UVC_TRACE_DESCR (1 << 1)
#define UVC_TRACE_CONTROL (1 << 2)
@ -184,7 +152,4 @@ extern void uvc_endpoint_stream(struct uvc_device *dev);
extern void uvc_function_connect(struct uvc_device *uvc);
extern void uvc_function_disconnect(struct uvc_device *uvc);
#endif /* __KERNEL__ */
#endif /* _UVC_GADGET_H_ */