msm: camera: Add UAPI header file for sync driver

header-y += cam_isp_vfe.h

header-y += cam_isp_ife.h

header-y += cam_sensor.h

header-y += cam_sync.h

header-y += msm_media_info.h

header-y += msm_vidc.h

header-y += msm_sde_rotator.h

#ifndef __UAPI_CAM_SYNC_H__

#define __UAPI_CAM_SYNC_H__

#include <linux/videodev2.h>

#include <linux/types.h>

#include <linux/ioctl.h>

#include <linux/media.h>

#define CAM_SYNC_DEVICE_NAME                     "cam_sync_device"

/* V4L event which user space will subscribe to */

#define CAM_SYNC_V4L_EVENT                       (V4L2_EVENT_PRIVATE_START + 0)

/* Specific event ids to get notified in user space */

#define CAM_SYNC_V4L_EVENT_ID_CB_TRIG            0

/* Size of opaque payload sent to kernel for safekeeping until signal time */

#define CAM_SYNC_USER_PAYLOAD_SIZE               2

/* Device type for sync device needed for device discovery */

#define CAM_SYNC_DEVICE_TYPE                     (MEDIA_ENT_F_OLD_BASE)

#define CAM_SYNC_GET_PAYLOAD_PTR(ev, type)       \

	(type *)((char *)ev.u.data + sizeof(struct cam_sync_ev_header))

#define CAM_SYNC_GET_HEADER_PTR(ev)              \

	((struct cam_sync_ev_header *)ev.u.data)

#define CAM_SYNC_STATE_INVALID                   0

#define CAM_SYNC_STATE_ACTIVE                    1

#define CAM_SYNC_STATE_SIGNALED_SUCCESS          2

#define CAM_SYNC_STATE_SIGNALED_ERROR            3

/**

 * struct cam_sync_ev_header - Event header for sync event notification

 *

 * @sync_obj: Sync object

 * @status:   Status of the object

 */

struct cam_sync_ev_header {

	int32_t sync_obj;

	int32_t status;

};

/**

 * struct cam_sync_info - Sync object creation information

 *

 * @name:       Optional string representation of the sync object

 * @sync_obj:   Sync object returned after creation in kernel

 */

struct cam_sync_info {

	char name[64];

	int32_t sync_obj;

};

/**

 * struct cam_sync_signal - Sync object signaling struct

 *

 * @sync_obj:   Sync object to be signaled

 * @sync_state: State of the sync object to which it should be signaled

 */

struct cam_sync_signal {

	int32_t sync_obj;

	uint32_t sync_state;

};

/**

 * struct cam_sync_merge - Merge information for sync objects

 *

 * @sync_objs:  Pointer to sync objects

 * @num_objs:   Number of objects in the array

 * @merged:     Merged sync object

 */

struct cam_sync_merge {

	__u64 sync_objs;

	uint32_t num_objs;

	int32_t merged;

};

/**

 * struct cam_sync_userpayload_info - Payload info from user space

 *

 * @sync_obj:   Sync object for which payload has to be registered for

 * @reserved:   Reserved

 * @payload:    Pointer to user payload

 */

struct cam_sync_userpayload_info {

	int32_t sync_obj;

	uint32_t reserved;

	__u64 payload[CAM_SYNC_USER_PAYLOAD_SIZE];

};

/**

 * struct cam_sync_wait - Sync object wait information

 *

 * @sync_obj:   Sync object to wait on

 * @reserved:   Reserved

 * @timeout_ms: Timeout in milliseconds

 */

struct cam_sync_wait {

	int32_t sync_obj;

	uint32_t reserved;

	uint64_t timeout_ms;

};

/**

 * struct cam_private_ioctl_arg - Sync driver ioctl argument

 *

 * @id:         IOCTL command id

 * @size:       Size of command payload

 * @result:     Result of command execution

 * @reserved:   Reserved

 * @ioctl_ptr:  Pointer to user data

 */

struct cam_private_ioctl_arg {

	__u32 id;

	__u32 size;

	__u32 result;

	__u32 reserved;

	__user __u64 ioctl_ptr;

};

#define CAM_PRIVATE_IOCTL_CMD \

	_IOWR('V', BASE_VIDIOC_PRIVATE, struct cam_private_ioctl_arg)

#define CAM_SYNC_CREATE                          0

#define CAM_SYNC_DESTROY                         1

#define CAM_SYNC_SIGNAL                          2

#define CAM_SYNC_MERGE                           3

#define CAM_SYNC_REGISTER_PAYLOAD                4

#define CAM_SYNC_DEREGISTER_PAYLOAD              5

#define CAM_SYNC_WAIT                            6

#endif /* __UAPI_CAM_SYNC_H__ */