452 lines
15 KiB
C
452 lines
15 KiB
C
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/*
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* drivers/media/platform/tegra/camera/mc_common.h
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*
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* Tegra Media controller common APIs
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*
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* Copyright (c) 2012-2021, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __CAMERA_MC_COMMON_H__
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#define __CAMERA_MC_COMMON_H__
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#include <media/media-device.h>
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#include <media/media-entity.h>
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#include <media/sensor_common.h>
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#include <media/v4l2-async.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-dev.h>
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#include <media/videobuf2-core.h>
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#include <media/tegra_camera_core.h>
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#include <media/csi.h>
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#include <linux/workqueue.h>
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#include <linux/semaphore.h>
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#include <linux/rwsem.h>
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#define MAX_FORMAT_NUM 64
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#define MAX_SUBDEVICES 4
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#define QUEUED_BUFFERS 4
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#define ENABLE 1
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#define DISABLE 0
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#define MAX_SYNCPT_PER_CHANNEL 3
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#define CAPTURE_MIN_BUFFERS 1U
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#define CAPTURE_MAX_BUFFERS 240U
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#define TEGRA_MEM_FORMAT 0
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#define TEGRA_ISP_FORMAT 1
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enum channel_capture_state {
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CAPTURE_IDLE = 0,
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CAPTURE_GOOD,
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CAPTURE_TIMEOUT,
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CAPTURE_ERROR,
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};
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enum tegra_vi_pg_mode {
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TEGRA_VI_PG_DISABLED = 0,
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TEGRA_VI_PG_DIRECT,
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TEGRA_VI_PG_PATCH,
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};
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enum interlaced_type {
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Top_Bottom = 0,
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Interleaved,
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};
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/**
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* struct tegra_channel_buffer - video channel buffer
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* @buf: vb2 buffer base object
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* @queue: buffer list entry in the channel queued buffers list
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* @chan: channel that uses the buffer
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* @vb2_state: V4L2 buffer state (active, done, error)
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* @capture_descr_index: Index into the VI capture descriptor queue
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* @addr: Tegra IOVA buffer address for VI output
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*/
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struct tegra_channel_buffer {
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struct vb2_v4l2_buffer buf;
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struct list_head queue;
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struct tegra_channel *chan;
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unsigned int vb2_state;
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unsigned int capture_descr_index[TEGRA_CSI_BLOCKS];
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dma_addr_t addr;
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u32 thresh[TEGRA_CSI_BLOCKS];
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int version;
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int state;
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};
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#define to_tegra_channel_buffer(vb) \
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container_of(vb, struct tegra_channel_buffer, buf)
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/**
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* struct tegra_vi_graph_entity - Entity in the video graph
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* @list: list entry in a graph entities list
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* @node: the entity's DT node
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* @entity: media entity, from the corresponding V4L2 subdev
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* @asd: subdev asynchronous registration information
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* @subdev: V4L2 subdev
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*/
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struct tegra_vi_graph_entity {
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struct list_head list;
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struct device_node *node;
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struct media_entity *entity;
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struct v4l2_async_subdev asd;
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struct v4l2_subdev *subdev;
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};
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/**
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* struct tegra_channel - Tegra video channel
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* @list: list entry in a composite device dmas list
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* @video: V4L2 video device associated with the video channel
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* @video_lock:
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* @pad: media pad for the video device entity
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* @pipe: pipeline belonging to the channel
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*
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* @vi: composite device DT node port number for the channel
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*
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* @kthread_capture: kernel thread task structure of this video channel
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* @wait: wait queue structure for kernel thread
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*
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* @format: active V4L2 pixel format
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* @fmtinfo: format information corresponding to the active @format
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*
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* @queue: vb2 buffers queue
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* @alloc_ctx: allocation context for the vb2 @queue
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* @sequence: V4L2 buffers sequence number
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*
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* @capture: list of queued buffers for capture
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* @queued_lock: protects the buf_queued list
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*
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* @csi: CSI register bases
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* @stride_align: channel buffer stride alignment, default is 1
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* @width_align: image width alignment, default is 1
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* @height_align: channel buffer height alignment, default is 1
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* @size_align: channel buffer size alignment, default is 1
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* @port: CSI port of this video channel
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* @io_id: Tegra IO rail ID of this video channel
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*
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* @fmts_bitmap: a bitmap for formats supported
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* @bypass: bypass flag for VI bypass mode
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* @restart_version: incremented every time either capture or release threads
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* wants to reset VI. it is appended to each buffer processed
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* by the capture thread, and inspected by each buffer
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* processed by the receive thread.
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* @capture_version: thread-local copy of @restart_version created when the
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* capture thread resets the VI.
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*/
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struct tegra_channel {
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int id;
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struct list_head list;
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struct video_device *video;
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struct media_pad pad;
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struct media_pipeline pipe;
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struct mutex video_lock;
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struct tegra_mc_vi *vi;
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struct v4l2_subdev *subdev[MAX_SUBDEVICES];
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struct v4l2_subdev *subdev_on_csi;
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struct v4l2_ctrl_handler ctrl_handler;
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struct v4l2_pix_format format;
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const struct tegra_video_format *fmtinfo;
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const struct tegra_video_format *video_formats[MAX_FORMAT_NUM];
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unsigned int num_video_formats;
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struct mutex stop_kthread_lock;
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unsigned char port[TEGRA_CSI_BLOCKS];
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unsigned int virtual_channel;
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unsigned int syncpt[TEGRA_CSI_BLOCKS][MAX_SYNCPT_PER_CHANNEL];
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unsigned int syncpoint_fifo[TEGRA_CSI_BLOCKS][MAX_SYNCPT_PER_CHANNEL];
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unsigned int buffer_offset[TEGRA_CSI_BLOCKS];
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unsigned int *buffer_state;
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struct vb2_v4l2_buffer **buffers;
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unsigned long timeout;
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atomic_t restart_version;
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int capture_version;
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unsigned int save_index;
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unsigned int free_index;
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unsigned int num_buffers;
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spinlock_t buffer_lock;
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unsigned int released_bufs;
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unsigned int capture_queue_depth;
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unsigned int capture_descr_index;
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unsigned int capture_descr_sequence;
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unsigned int capture_reqs_enqueued;
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struct task_struct *kthread_capture_start;
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struct task_struct *kthread_release;
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wait_queue_head_t start_wait;
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wait_queue_head_t release_wait;
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struct task_struct *kthread_capture_dequeue;
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wait_queue_head_t dequeue_wait;
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struct vb2_queue queue;
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void *alloc_ctx;
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bool init_done;
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struct list_head capture;
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struct list_head release;
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struct list_head dequeue;
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spinlock_t start_lock;
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spinlock_t release_lock;
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spinlock_t dequeue_lock;
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struct work_struct status_work;
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struct work_struct error_work;
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void __iomem *csibase[TEGRA_CSI_BLOCKS];
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unsigned int stride_align;
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unsigned int preferred_stride;
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unsigned int width_align;
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unsigned int height_align;
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unsigned int size_align;
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unsigned int valid_ports;
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unsigned int total_ports;
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unsigned int numlanes;
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unsigned int io_id;
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unsigned int num_subdevs;
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unsigned int sequence;
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unsigned int saved_ctx_bypass;
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unsigned int saved_ctx_pgmode;
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unsigned int gang_mode;
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unsigned int gang_width;
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unsigned int gang_height;
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unsigned int gang_bytesperline;
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unsigned int gang_sizeimage;
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unsigned int embedded_data_width;
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unsigned int embedded_data_height;
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DECLARE_BITMAP(fmts_bitmap, MAX_FORMAT_NUM);
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atomic_t power_on_refcnt;
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struct v4l2_fh *fh;
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bool bypass;
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bool write_ispformat;
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bool low_latency;
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enum tegra_vi_pg_mode pg_mode;
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bool bfirst_fstart;
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enum channel_capture_state capture_state;
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bool queue_error;
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spinlock_t capture_state_lock;
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atomic_t is_streaming;
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int requested_kbyteps;
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unsigned long requested_hz;
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struct vi_notify_channel *vnc[TEGRA_CSI_BLOCKS];
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int vnc_id[TEGRA_CSI_BLOCKS];
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int grp_id;
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struct v4l2_async_notifier notifier;
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struct list_head entities;
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struct device_node *endpoint_node; /* endpoint of_node in vi */
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unsigned int subdevs_bound;
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unsigned int link_status;
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struct nvcsi_deskew_context *deskew_ctx;
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struct tegra_vi_channel *tegra_vi_channel[TEGRA_CSI_BLOCKS];
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struct capture_descriptor *request[TEGRA_CSI_BLOCKS];
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bool is_slvsec;
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int is_interlaced;
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enum interlaced_type interlace_type;
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int interlace_bplfactor;
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atomic_t syncpt_depth;
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struct rw_semaphore reset_lock;
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};
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#define to_tegra_channel(vdev) \
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container_of(vdev, struct tegra_channel, video)
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/**
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* struct tegra_mc_vi - NVIDIA Tegra Media controller structure
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* @v4l2_dev: V4L2 device
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* @media_dev: media device
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* @dev: device struct
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* @tegra_camera: tegra camera structure
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* @nvhost_device_data: NvHost VI device information
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*
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* @notifier: V4L2 asynchronous subdevs notifier
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* @entities: entities in the graph as a list of tegra_vi_graph_entity
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* @num_subdevs: number of subdevs in the pipeline
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*
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* @channels: list of channels at the pipeline output and input
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*
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* @ctrl_handler: V4L2 control handler
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* @pattern: test pattern generator V4L2 control
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* @pg_mode: test pattern generator mode (disabled/direct/patch)
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*
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* @has_sensors: a flag to indicate whether is a real sensor connecting
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*/
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struct tegra_mc_vi {
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struct vi *vi;
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struct platform_device *ndev;
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struct v4l2_device v4l2_dev;
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struct media_device media_dev;
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struct device *dev;
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struct nvhost_device_data *ndata;
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struct regulator *reg;
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struct clk *clk;
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struct clk *parent_clk;
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unsigned int num_channels;
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unsigned int num_subdevs;
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struct tegra_csi_device *csi;
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struct list_head vi_chans;
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struct tegra_channel *tpg_start;
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void __iomem *iomem;
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struct v4l2_ctrl_handler ctrl_handler;
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struct v4l2_ctrl *pattern;
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enum tegra_vi_pg_mode pg_mode;
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bool has_sensors;
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atomic_t power_on_refcnt;
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atomic_t vb2_dma_alloc_refcnt;
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struct mutex bw_update_lock;
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unsigned long aggregated_kbyteps;
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unsigned long max_requested_hz;
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struct mutex mipical_lock;
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bool bypass;
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const struct tegra_vi_fops *fops;
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dma_addr_t emb_buf;
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void *emb_buf_addr;
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unsigned int emb_buf_size;
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};
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int tegra_vi_get_port_info(struct tegra_channel *chan,
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struct device_node *node, unsigned int index);
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void tegra_vi_v4l2_cleanup(struct tegra_mc_vi *vi);
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int tegra_vi_v4l2_init(struct tegra_mc_vi *vi);
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int tegra_vi_tpg_graph_init(struct tegra_mc_vi *vi);
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int tegra_vi_graph_init(struct tegra_mc_vi *vi);
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void tegra_vi_graph_cleanup(struct tegra_mc_vi *vi);
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int tegra_channel_init(struct tegra_channel *chan);
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void tegra_vi_channels_unregister(struct tegra_mc_vi *vi);
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int tegra_vi_channels_init(struct tegra_mc_vi *vi);
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int tegra_channel_cleanup(struct tegra_channel *chan);
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int tegra_vi_channels_cleanup(struct tegra_mc_vi *vi);
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int tegra_channel_init_subdevices(struct tegra_channel *chan);
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void tegra_channel_remove_subdevices(struct tegra_channel *chan);
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struct v4l2_subdev *tegra_channel_find_linked_csi_subdev(
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struct tegra_channel *chan);
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int tegra_vi2_power_on(struct tegra_mc_vi *vi);
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void tegra_vi2_power_off(struct tegra_mc_vi *vi);
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int tegra_vi4_power_on(struct tegra_mc_vi *vi);
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void tegra_vi4_power_off(struct tegra_mc_vi *vi);
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int tegra_vi5_power_on(struct tegra_mc_vi *vi);
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void tegra_vi5_power_off(struct tegra_mc_vi *vi);
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int tegra_clean_unlinked_channels(struct tegra_mc_vi *vi);
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int tegra_channel_s_ctrl(struct v4l2_ctrl *ctrl);
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int tegra_vi_media_controller_init(struct tegra_mc_vi *mc_vi,
|
||
|
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struct platform_device *pdev);
|
||
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void tegra_vi_media_controller_cleanup(struct tegra_mc_vi *mc_vi);
|
||
|
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void tegra_channel_ec_close(struct tegra_mc_vi *mc_vi);
|
||
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void tegra_channel_query_hdmiin_unplug(struct tegra_channel *chan,
|
||
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struct v4l2_event *event);
|
||
|
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int tegra_vi_mfi_work(struct tegra_mc_vi *vi, int csiport);
|
||
|
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int tpg_vi_media_controller_init(struct tegra_mc_vi *mc_vi, int pg_mode);
|
||
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void tpg_vi_media_controller_cleanup(struct tegra_mc_vi *mc_vi);
|
||
|
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struct tegra_mc_vi *tegra_get_mc_vi(void);
|
||
|
|
|
||
|
|
u32 tegra_core_get_fourcc_by_idx(struct tegra_channel *chan,
|
||
|
|
unsigned int index);
|
||
|
|
int tegra_core_get_idx_by_code(struct tegra_channel *chan,
|
||
|
|
unsigned int code, unsigned offset);
|
||
|
|
int tegra_core_get_code_by_fourcc(struct tegra_channel *chan,
|
||
|
|
unsigned int fourcc, unsigned int offset);
|
||
|
|
const struct tegra_video_format *tegra_core_get_format_by_code(
|
||
|
|
struct tegra_channel *chan,
|
||
|
|
unsigned int code, unsigned offset);
|
||
|
|
const struct tegra_video_format *tegra_core_get_format_by_fourcc(
|
||
|
|
struct tegra_channel *chan, u32 fourcc);
|
||
|
|
void tegra_channel_queued_buf_done(struct tegra_channel *chan,
|
||
|
|
enum vb2_buffer_state state, bool multi_queue);
|
||
|
|
int tegra_channel_set_stream(struct tegra_channel *chan, bool on);
|
||
|
|
int tegra_channel_write_blobs(struct tegra_channel *chan);
|
||
|
|
void tegra_channel_ring_buffer(struct tegra_channel *chan,
|
||
|
|
struct vb2_v4l2_buffer *vb,
|
||
|
|
struct timespec *ts, int state);
|
||
|
|
struct tegra_channel_buffer *dequeue_buffer(struct tegra_channel *chan,
|
||
|
|
bool requeue);
|
||
|
|
struct tegra_channel_buffer *dequeue_dequeue_buffer(struct tegra_channel *chan);
|
||
|
|
int tegra_channel_error_recover(struct tegra_channel *chan, bool queue_error);
|
||
|
|
int tegra_channel_alloc_buffer_queue(struct tegra_channel *chan,
|
||
|
|
unsigned int num_buffers);
|
||
|
|
void tegra_channel_dealloc_buffer_queue(struct tegra_channel *chan);
|
||
|
|
void tegra_channel_init_ring_buffer(struct tegra_channel *chan);
|
||
|
|
void free_ring_buffers(struct tegra_channel *chan, int frames);
|
||
|
|
void release_buffer(struct tegra_channel *chan,
|
||
|
|
struct tegra_channel_buffer *buf);
|
||
|
|
void set_timestamp(struct tegra_channel_buffer *buf,
|
||
|
|
const struct timespec *ts);
|
||
|
|
void enqueue_inflight(struct tegra_channel *chan,
|
||
|
|
struct tegra_channel_buffer *buf);
|
||
|
|
struct tegra_channel_buffer *dequeue_inflight(struct tegra_channel *chan);
|
||
|
|
int tegra_channel_set_power(struct tegra_channel *chan, bool on);
|
||
|
|
|
||
|
|
int tegra_channel_init_video(struct tegra_channel *chan);
|
||
|
|
int tegra_channel_cleanup_video(struct tegra_channel *chan);
|
||
|
|
|
||
|
|
struct tegra_vi_fops {
|
||
|
|
int (*vi_power_on)(struct tegra_channel *chan);
|
||
|
|
void (*vi_power_off)(struct tegra_channel *chan);
|
||
|
|
int (*vi_start_streaming)(struct vb2_queue *vq, u32 count);
|
||
|
|
int (*vi_stop_streaming)(struct vb2_queue *vq);
|
||
|
|
int (*vi_setup_queue)(struct tegra_channel *chan,
|
||
|
|
unsigned int *nbuffers);
|
||
|
|
int (*vi_error_recover)(struct tegra_channel *chan, bool queue_error);
|
||
|
|
int (*vi_add_ctrls)(struct tegra_channel *chan);
|
||
|
|
void (*vi_init_video_formats)(struct tegra_channel *chan);
|
||
|
|
long (*vi_default_ioctl)(struct file *file, void *fh,
|
||
|
|
bool use_prio, unsigned int cmd, void *arg);
|
||
|
|
int (*vi_mfi_work)(struct tegra_mc_vi *vi, int port);
|
||
|
|
void (*vi_stride_align)(unsigned int *bpl);
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tegra_csi_fops {
|
||
|
|
int (*csi_power_on)(struct tegra_csi_device *csi);
|
||
|
|
int (*csi_power_off)(struct tegra_csi_device *csi);
|
||
|
|
int (*csi_start_streaming)(struct tegra_csi_channel *chan,
|
||
|
|
int port_idx);
|
||
|
|
void (*csi_stop_streaming)(struct tegra_csi_channel *chan,
|
||
|
|
int port_idx);
|
||
|
|
void (*csi_override_format)(struct tegra_csi_channel *chan,
|
||
|
|
int port_idx);
|
||
|
|
int (*csi_error_recover)(struct tegra_csi_channel *chan, int port_idx);
|
||
|
|
int (*mipical)(struct tegra_csi_channel *chan);
|
||
|
|
int (*hw_init)(struct tegra_csi_device *csi);
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tegra_t210_vi_data {
|
||
|
|
struct nvhost_device_data *info;
|
||
|
|
const struct tegra_vi_fops *vi_fops;
|
||
|
|
const struct tegra_csi_fops *csi_fops;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tegra_vi_data {
|
||
|
|
struct nvhost_device_data *info;
|
||
|
|
const struct tegra_vi_fops *vi_fops;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tegra_csi_data {
|
||
|
|
struct nvhost_device_data *info;
|
||
|
|
const struct tegra_csi_fops *csi_fops;
|
||
|
|
};
|
||
|
|
#endif
|