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Isp video implements v4l2 video interface and supports NV12 and YUYV. It manages buffers, pipeline power and state. Cherry-picked Sultan's DMA buffer related fix from branch v6.16-drm-tip-isp4-for-amd on https://github.com/kerneltoast/kernel_x86_laptop.git Co-developed-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Co-developed-by: Svetoslav Stoilov <Svetoslav.Stoilov@amd.com> Signed-off-by: Svetoslav Stoilov <Svetoslav.Stoilov@amd.com> Signed-off-by: Bin Du <Bin.Du@amd.com> Reviewed-by: Sultan Alsawaf <sultan@kerneltoast.com> Tested-by: Alexey Zagorodnikov <xglooom@gmail.com> Tested-by: Kate Hsuan <hpa@redhat.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2025 Advanced Micro Devices, Inc.
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*/
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#ifndef _ISP4_VIDEO_H_
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#define _ISP4_VIDEO_H_
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#include <media/v4l2-dev.h>
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#include <media/videobuf2-memops.h>
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#include "isp4_interface.h"
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struct isp4vid_capture_buffer {
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/*
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* struct vb2_v4l2_buffer must be the first element
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* the videobuf2 framework will allocate this struct based on
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* buf_struct_size and use the first sizeof(struct vb2_buffer) bytes of
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* memory as a vb2_buffer
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*/
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struct vb2_v4l2_buffer vb2;
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struct isp4if_img_buf_info img_buf;
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struct list_head list;
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struct dma_buf *dbuf;
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void *bo;
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u64 gpu_addr;
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};
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struct isp4vid_dev {
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struct video_device vdev;
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struct media_pad vdev_pad;
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struct v4l2_pix_format format;
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/* mutex that protects vbq */
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struct mutex vbq_lock;
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struct vb2_queue vbq;
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/* mutex that protects buf_list */
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struct mutex buf_list_lock;
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struct list_head buf_list;
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u32 sequence;
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bool stream_started;
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struct device *dev;
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struct v4l2_subdev *isp_sdev;
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struct v4l2_fract timeperframe;
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};
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int isp4vid_dev_init(struct isp4vid_dev *isp_vdev, struct v4l2_subdev *isp_sd);
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void isp4vid_dev_deinit(struct isp4vid_dev *isp_vdev);
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void isp4vid_handle_frame_done(struct isp4vid_dev *isp_vdev,
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const struct isp4if_img_buf_info *img_buf);
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#endif /* _ISP4_VIDEO_H_ */
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