dc53926c40
The current implementation allows to pass uint_32 as argument in the message callback. Changing it to (void *) type so that any type of data can be passed in the future implementations. CRs-Fixed: 2847155 Change-Id: Ic52a5ccfe13efdba37bbcfdb7154ed789b1943fd Signed-off-by: Shardul Bankar <sharbank@codeaurora.org>
148 lines
4.4 KiB
C
148 lines
4.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2017-2021, The Linux Foundation. All rights reserved.
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*/
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#ifndef _CAM_SUBDEV_H_
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#define _CAM_SUBDEV_H_
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#include <linux/types.h>
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#include <linux/platform_device.h>
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#include <media/v4l2-fh.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-subdev.h>
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#include <media/v4l2-event.h>
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#include <media/v4l2-ioctl.h>
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#define CAM_SUBDEVICE_EVENT_MAX 30
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enum cam_subdev_message_type_t {
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CAM_SUBDEV_MESSAGE_IRQ_ERR = 0x1
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};
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/* Enum for close sequence priority */
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enum cam_subdev_close_seq_priority {
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CAM_SD_CLOSE_HIGH_PRIORITY,
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CAM_SD_CLOSE_MEDIUM_PRIORITY,
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CAM_SD_CLOSE_LOW_PRIORITY
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};
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/**
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* struct cam_subdev - describes a camera sub-device
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*
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* @pdev: Pointer to the platform device
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* @sd: V4l2 subdevice
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* @ops: V4l2 subdecie operations
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* @internal_ops: V4l2 subdevice internal operations
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* @name: Name of the sub-device. Please notice that the name
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* must be unique.
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* @sd_flags: Subdev flags. Can be:
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* %V4L2_SUBDEV_FL_HAS_DEVNODE - Set this flag if
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* this subdev needs a device node.
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* %V4L2_SUBDEV_FL_HAS_EVENTS - Set this flag if
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* this subdev generates events.
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* @token: Pointer to cookie of the client driver
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* @ent_function: Media entity function type. Can be:
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* %CAM_IFE_DEVICE_TYPE - identifies as IFE device.
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* %CAM_ICP_DEVICE_TYPE - identifies as ICP device.
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* @list: list pointer
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* @close_seq_prior: cam_subdev_close_seq_priority type
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*
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* Each instance of a subdev driver should create this struct, either
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* stand-alone or embedded in a larger struct. This structure should be
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* initialized/registered by cam_register_subdev
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*
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*/
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struct cam_subdev {
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struct platform_device *pdev;
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struct v4l2_subdev sd;
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const struct v4l2_subdev_ops *ops;
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const struct v4l2_subdev_internal_ops *internal_ops;
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char *name;
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u32 sd_flags;
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void *token;
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u32 ent_function;
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void (*msg_cb)(
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struct v4l2_subdev *sd,
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enum cam_subdev_message_type_t msg_type,
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void *data);
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struct list_head list;
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enum cam_subdev_close_seq_priority close_seq_prior;
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};
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/**
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* cam_subdev_notify_message()
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*
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* @brief: Notify message to a subdevs of specific type
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*
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* @subdev_type: Subdev type
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* @message_type: message type
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* @data: data to be delivered.
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*
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*/
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void cam_subdev_notify_message(u32 subdev_type,
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enum cam_subdev_message_type_t message_type,
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void *data);
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/**
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* cam_subdev_probe()
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*
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* @brief: Camera Subdevice node probe function for v4l2 setup
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*
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* @sd: Camera subdevice object
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* @name: Name of the subdevice node
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* @dev_type: Subdevice node type
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*
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*/
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int cam_subdev_probe(struct cam_subdev *sd, struct platform_device *pdev,
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char *name, uint32_t dev_type);
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/**
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* cam_subdev_remove()
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*
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* @brief: Called when subdevice node is unloaded
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*
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* @sd: Camera subdevice node object
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*
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*/
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int cam_subdev_remove(struct cam_subdev *sd);
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/**
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* cam_register_subdev()
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*
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* @brief: This is the common utility function to be called by each camera
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* subdevice node when it tries to register itself to the camera
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* request manager
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*
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* @sd: Pointer to struct cam_subdev.
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*/
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int cam_register_subdev(struct cam_subdev *sd);
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/**
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* cam_unregister_subdev()
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*
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* @brief: This is the common utility function to be called by each camera
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* subdevice node when it tries to unregister itself from the
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* camera request manger
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*
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* @sd: Pointer to struct cam_subdev.
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*/
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int cam_unregister_subdev(struct cam_subdev *sd);
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/**
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* cam_req_mgr_is_open()
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*
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* @brief: This common utility function returns the crm active status
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*
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*/
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bool cam_req_mgr_is_open(void);
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/**
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* cam_req_mgr_is_shutdown()
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*
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* @brief: This common utility function returns the shutdown state
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*/
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bool cam_req_mgr_is_shutdown(void);
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#endif /* _CAM_SUBDEV_H_ */
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