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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
- */
- #ifndef _CAM_SUBDEV_H_
- #define _CAM_SUBDEV_H_
- #include <linux/types.h>
- #include <linux/platform_device.h>
- #include <media/v4l2-fh.h>
- #include <media/v4l2-device.h>
- #include <media/v4l2-subdev.h>
- #include <media/v4l2-event.h>
- #include <media/v4l2-ioctl.h>
- #define CAM_SUBDEVICE_EVENT_MAX 30
- enum cam_subdev_message_type_t {
- CAM_SUBDEV_MESSAGE_IRQ_ERR = 0x1
- };
- /**
- * struct cam_subdev - describes a camera sub-device
- *
- * @pdev: Pointer to the platform device
- * @sd: V4l2 subdevice
- * @ops: V4l2 subdecie operations
- * @internal_ops: V4l2 subdevice internal operations
- * @name: Name of the sub-device. Please notice that the name
- * must be unique.
- * @sd_flags: Subdev flags. Can be:
- * %V4L2_SUBDEV_FL_HAS_DEVNODE - Set this flag if
- * this subdev needs a device node.
- * %V4L2_SUBDEV_FL_HAS_EVENTS - Set this flag if
- * this subdev generates events.
- * @token: Pointer to cookie of the client driver
- * @ent_function: Media entity function type. Can be:
- * %CAM_IFE_DEVICE_TYPE - identifies as IFE device.
- * %CAM_ICP_DEVICE_TYPE - identifies as ICP device.
- *
- * Each instance of a subdev driver should create this struct, either
- * stand-alone or embedded in a larger struct. This structure should be
- * initialized/registered by cam_register_subdev
- *
- */
- struct cam_subdev {
- struct platform_device *pdev;
- struct v4l2_subdev sd;
- const struct v4l2_subdev_ops *ops;
- const struct v4l2_subdev_internal_ops *internal_ops;
- char *name;
- u32 sd_flags;
- void *token;
- u32 ent_function;
- void (*msg_cb)(
- struct v4l2_subdev *sd,
- enum cam_subdev_message_type_t msg_type,
- uint32_t data);
- };
- /**
- * cam_subdev_notify_message()
- *
- * @brief: Notify message to a subdevs of specific type
- *
- * @subdev_type: Subdev type
- * @message_type: message type
- * @data: data to be delivered.
- *
- */
- void cam_subdev_notify_message(u32 subdev_type,
- enum cam_subdev_message_type_t message_type,
- uint32_t data);
- /**
- * cam_subdev_probe()
- *
- * @brief: Camera Subdevice node probe function for v4l2 setup
- *
- * @sd: Camera subdevice object
- * @name: Name of the subdevice node
- * @dev_type: Subdevice node type
- *
- */
- int cam_subdev_probe(struct cam_subdev *sd, struct platform_device *pdev,
- char *name, uint32_t dev_type);
- /**
- * cam_subdev_remove()
- *
- * @brief: Called when subdevice node is unloaded
- *
- * @sd: Camera subdevice node object
- *
- */
- int cam_subdev_remove(struct cam_subdev *sd);
- /**
- * cam_register_subdev()
- *
- * @brief: This is the common utility function to be called by each camera
- * subdevice node when it tries to register itself to the camera
- * request manager
- *
- * @sd: Pointer to struct cam_subdev.
- */
- int cam_register_subdev(struct cam_subdev *sd);
- /**
- * cam_unregister_subdev()
- *
- * @brief: This is the common utility function to be called by each camera
- * subdevice node when it tries to unregister itself from the
- * camera request manger
- *
- * @sd: Pointer to struct cam_subdev.
- */
- int cam_unregister_subdev(struct cam_subdev *sd);
- #endif /* _CAM_SUBDEV_H_ */
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