050d6d7a8a
Adds checks to confirm CSID frequency greater than CSIPHY frequency, TFE frequency greater than CSID frequency. Also TFE frequency should be such that it can accommodate PHY data rate . CRs-Fixed: 2847155 Change-Id: I5d3dcc53a6f27129f4b82cba1254445f58f6d0cf Signed-off-by: Shravya Samala <quic_shravyas@quicinc.com> Signed-off-by: Shardul Bankar <quic_sharbank@quicinc.com> Signed-off-by: Gaurav Jindal <quic_gjindal@quicinc.com> Signed-off-by: Alok Chauhan <quic_alokc@quicinc.com>
228 lines
7.1 KiB
C
228 lines
7.1 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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* Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. 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 for indicating CSID event */
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enum cam_subdev_phy_csid_state {
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CAM_SUBDEV_PHY_CSID_HALT = 1,
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CAM_SUBDEV_PHY_CSID_RESUME,
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};
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/**
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* struct cam_subdev_msg_phy_conn_csid_info: Contains phy num and connected CSID info
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*
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* @phy_idx: Phy idx value indicating which phy is connected to csid core
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* @lane_cfg: This value is similar to lane_assign in the PHY
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* driver, and is used to identify the particular
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* PHY instance with which this IFE session is
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* connected to.
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* @core_idx: Primary(in case of dual ife) core idx for the csid to which the phy
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* is connected, -1 while disconnecting
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*/
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struct cam_subdev_msg_phy_conn_csid_info {
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uint32_t phy_idx;
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uint32_t lane_cfg;
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int32_t core_idx;
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};
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/**
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* struct cam_subdev_msg_phy_drv_info: Contains drv config info
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*
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* @phy_idx: Phy idx value indicating which phy is connected to csid core
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* @lane_cfg: This value is similar to lane_assign in the PHY
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* driver, and is used to identify the particular
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* PHY instance with which this IFE session is
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* connected to.
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* @use_hw_client_voting: Whether to use hw client voting for csiphy clk
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* @is_drv_config_en: If DRV config is enabled in CSID
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*/
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struct cam_subdev_msg_phy_drv_info {
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uint32_t phy_idx;
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uint32_t lane_cfg;
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bool use_hw_client_voting;
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bool is_drv_config_en;
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};
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/**
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* struct cam_subdev_msg_phy_halt_resume_info: Contains csid halt resume info
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*
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* @phy_idx: Phy idx value indicating which phy is connected to csid core
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* @lane_cfg: This value is similar to lane_assign in the PHY
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* driver, and is used to identify the particular
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* PHY instance with which this IFE session is
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* connected to.
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* @csid_state: Notification of CSID state
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*/
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struct cam_subdev_msg_phy_halt_resume_info {
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uint32_t phy_idx;
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uint32_t lane_cfg;
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enum cam_subdev_phy_csid_state csid_state;
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};
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enum cam_subdev_message_type_t {
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CAM_SUBDEV_MESSAGE_REG_DUMP = 0x1,
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CAM_SUBDEV_MESSAGE_APPLY_CSIPHY_AUX,
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CAM_SUBDEV_MESSAGE_DOMAIN_ID_SECURE_PARAMS,
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CAM_SUBDEV_MESSAGE_CONN_CSID_INFO,
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CAM_SUBDEV_MESSAGE_DRV_INFO,
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CAM_SUBDEV_MESSAGE_NOTIFY_HALT_RESUME,
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CAM_SUBDEV_MESSAGE_CLOCK_UPDATE
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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_MEDIUM_LOW_PRIORITY,
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CAM_SD_CLOSE_LOW_PRIORITY
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};
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enum cam_subdev_rwsem {
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CAM_SUBDEV_LOCK = 1,
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CAM_SUBDEV_UNLOCK,
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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_rwsem_read_op()
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*
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* @brief : API to acquire read semaphore lock to platform framework.
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*
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* @lock : value indicates to lock or unlock the read lock
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*/
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void cam_req_mgr_rwsem_read_op(enum cam_subdev_rwsem lock);
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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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