android_kernel_samsung_sm8650-modules/include/uapi/camera/media/cam_sync.h

/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
 * Copyright (c) 2016-2018, 2020 The Linux Foundation. All rights reserved.
 */

#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)
#define CAM_SYNC_V4L_EVENT_V2                    (V4L2_EVENT_PRIVATE_START + 1)

/* 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_GET_PAYLOAD_PTR_V2(ev, type)       \
	(type *)((char *)ev.u.data + sizeof(struct cam_sync_ev_header_v2))

#define CAM_SYNC_GET_HEADER_PTR_V2(ev)              \
	((struct cam_sync_ev_header_v2 *)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
#define CAM_SYNC_STATE_SIGNALED_CANCEL           4

/* Top level common sync event reason types */
#define CAM_SYNC_COMMON_EVENT_START       0
#define CAM_SYNC_COMMON_EVENT_UNUSED      (CAM_SYNC_COMMON_EVENT_START + 0)
#define CAM_SYNC_COMMON_EVENT_SUCCESS     (CAM_SYNC_COMMON_EVENT_START + 1)
#define CAM_SYNC_COMMON_EVENT_FLUSH       (CAM_SYNC_COMMON_EVENT_START + 2)
#define CAM_SYNC_COMMON_EVENT_STOP        (CAM_SYNC_COMMON_EVENT_START + 3)
#define CAM_SYNC_COMMON_EVENT_SYNX        (CAM_SYNC_COMMON_EVENT_START + 4)
#define CAM_SYNC_COMMON_REG_PAYLOAD_EVENT (CAM_SYNC_COMMON_EVENT_START + 5)
#define CAM_SYNC_COMMON_SYNC_SIGNAL_EVENT (CAM_SYNC_COMMON_EVENT_START + 6)
#define CAM_SYNC_COMMON_RELEASE_EVENT     (CAM_SYNC_COMMON_EVENT_START + 7)
#define CAM_SYNC_COMMON_EVENT_END         (CAM_SYNC_COMMON_EVENT_START + 50)

/* ISP Sync event reason types */
#define CAM_SYNC_ISP_EVENT_START          (CAM_SYNC_COMMON_EVENT_END + 1)
#define CAM_SYNC_ISP_EVENT_UNKNOWN        (CAM_SYNC_ISP_EVENT_START + 0)
#define CAM_SYNC_ISP_EVENT_BUBBLE         (CAM_SYNC_ISP_EVENT_START + 1)
#define CAM_SYNC_ISP_EVENT_OVERFLOW       (CAM_SYNC_ISP_EVENT_START + 2)
#define CAM_SYNC_ISP_EVENT_P2I_ERROR      (CAM_SYNC_ISP_EVENT_START + 3)
#define CAM_SYNC_ISP_EVENT_VIOLATION      (CAM_SYNC_ISP_EVENT_START + 4)
#define CAM_SYNC_ISP_EVENT_BUSIF_OVERFLOW (CAM_SYNC_ISP_EVENT_START + 5)
#define CAM_SYNC_ISP_EVENT_FLUSH          (CAM_SYNC_ISP_EVENT_START + 6)
#define CAM_SYNC_ISP_EVENT_HW_STOP        (CAM_SYNC_ISP_EVENT_START + 7)
#define CAM_SYNC_ISP_EVENT_END            (CAM_SYNC_ISP_EVENT_START + 50)

/* ICP Sync event reason types */
#define CAM_SYNC_ICP_EVENT_START                 (CAM_SYNC_ISP_EVENT_END + 1)
#define CAM_SYNC_ICP_EVENT_UNKNOWN               (CAM_SYNC_ICP_EVENT_START + 0)
#define CAM_SYNC_ICP_EVENT_FRAME_PROCESS_FAILURE (CAM_SYNC_ICP_EVENT_START + 1)
#define CAM_SYNC_ICP_EVENT_CONFIG_ERR            (CAM_SYNC_ICP_EVENT_START + 2)
#define CAM_SYNC_ICP_EVENT_END                   (CAM_SYNC_ICP_EVENT_START + 50)

/* JPEG Sync event reason types */
#define CAM_SYNC_JPEG_EVENT_START               (CAM_SYNC_ICP_EVENT_END + 1)
#define CAM_SYNC_JPEG_EVENT_UNKNOWN             (CAM_SYNC_JPEG_EVENT_START + 0)
#define CAM_SYNC_JPEG_EVENT_INVLD_CMD           (CAM_SYNC_JPEG_EVENT_START + 1)
#define CAM_SYNC_JPEG_EVENT_SET_IRQ_CB          (CAM_SYNC_JPEG_EVENT_START + 2)
#define CAM_SYNC_JPEG_EVENT_HW_RESET_FAILED     (CAM_SYNC_JPEG_EVENT_START + 3)
#define CAM_SYNC_JPEG_EVENT_CDM_CHANGE_BASE_ERR (CAM_SYNC_JPEG_EVENT_START + 4)
#define CAM_SYNC_JPEG_EVENT_CDM_CONFIG_ERR      (CAM_SYNC_JPEG_EVENT_START + 5)
#define CAM_SYNC_JPEG_EVENT_START_HW_ERR        (CAM_SYNC_JPEG_EVENT_START + 6)
#define CAM_SYNC_JPEG_EVENT_END                 (CAM_SYNC_JPEG_EVENT_START + 50)

/* FD Sync event reason types */
#define CAM_SYNC_FD_EVENT_START           (CAM_SYNC_JPEG_EVENT_END + 1)
#define CAM_SYNC_FD_EVENT_UNKNOWN         (CAM_SYNC_FD_EVENT_START + 0)
#define CAM_SYNC_FD_EVENT_IRQ_FRAME_DONE  (CAM_SYNC_FD_EVENT_START + 1)
#define CAM_SYNC_FD_EVENT_IRQ_RESET_DONE  (CAM_SYNC_FD_EVENT_START + 2)
#define CAM_SYNC_FD_EVENT_HALT            (CAM_SYNC_FD_EVENT_START + 3)
#define CAM_SYNC_FD_EVENT_END             (CAM_SYNC_FD_EVENT_START + 50)

/* LRME Sync event reason types */
#define CAM_SYNC_LRME_EVENT_START           (CAM_SYNC_FD_EVENT_END + 1)
#define CAM_SYNC_LRME_EVENT_UNKNOWN         (CAM_SYNC_LRME_EVENT_START + 0)
#define CAM_SYNC_LRME_EVENT_CB_ERROR        (CAM_SYNC_LRME_EVENT_START + 1)
#define CAM_SYNC_LRME_EVENT_END             (CAM_SYNC_LRME_EVENT_START + 50)

/* OPE Sync event reason types */
#define CAM_SYNC_OPE_EVENT_START              (CAM_SYNC_LRME_EVENT_END + 1)
#define CAM_SYNC_OPE_EVENT_UNKNOWN            (CAM_SYNC_OPE_EVENT_START + 0)
#define CAM_SYNC_OPE_EVENT_PAGE_FAULT         (CAM_SYNC_OPE_EVENT_START + 1)
#define CAM_SYNC_OPE_EVENT_HW_HANG            (CAM_SYNC_OPE_EVENT_START + 2)
#define CAM_SYNC_OPE_EVENT_HALT               (CAM_SYNC_OPE_EVENT_START + 3)
#define CAM_SYNC_OPE_EVENT_CONFIG_ERR         (CAM_SYNC_OPE_EVENT_START + 4)
#define CAM_SYNC_OPE_EVENT_HW_FLUSH           (CAM_SYNC_OPE_EVENT_START + 5)
#define CAM_SYNC_OPE_EVENT_HW_RESUBMIT        (CAM_SYNC_OPE_EVENT_START + 6)
#define CAM_SYNC_OPE_EVENT_HW_RESET_DONE      (CAM_SYNC_OPE_EVENT_START + 7)
#define CAM_SYNC_OPE_EVENT_HW_ERROR           (CAM_SYNC_OPE_EVENT_START + 8)
#define CAM_SYNC_OPE_EVENT_INVLD_CMD          (CAM_SYNC_OPE_EVENT_START + 9)
#define CAM_SYNC_OPE_EVENT_HW_RESET_FAILED    (CAM_SYNC_OPE_EVENT_START + 10)
#define CAM_SYNC_OPE_EVENT_END                (CAM_SYNC_OPE_EVENT_START + 50)

#define CAM_SYNC_EVENT_CNT                7
#define CAM_SYNC_EVENT_REASON_CODE_INDEX  0


/**
 * 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 {
	__s32 sync_obj;
	__s32 status;
};

/**
 * struct cam_sync_ev_header_v2 - Event header for sync event notification
 *
 * @sync_obj:    Sync object
 * @status:      Status of the object
 * @version:     sync driver version
 * @evt_param:   event parameter
 */
struct cam_sync_ev_header_v2 {
	__s32 sync_obj;
	__s32 status;
	uint32_t version;
	uint32_t evt_param[CAM_SYNC_EVENT_CNT];
};

/**
 * 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];
	__s32 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 {
	__s32 sync_obj;
	__u32 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;
	__u32 num_objs;
	__s32 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 {
	__s32 sync_obj;
	__u32 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 {
	__s32    sync_obj;
	__u32    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;
	__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__ */