SK-AM62A-LP: Error reported when using webcam: ti-udma 4e230000.dma-controller: chan2 teardown timeout!

YuWei Wu

Part Number: SK-AM62A-LP

Tool/software:

Hi,

I get an error when I'm using DMA to transfer camera data:

root@am62axx-evm:~# v4l2-ctl -d /dev/video3 --set-fmt-video=width=1920,height=1280,pixelformat=RG10 --stream-mmap --stream-loop
[  260.251991] [INFO]:[ti_csi2rx_start_streaming]:DMA get vc is 1
[  260.258468] analog,max96716 2-0028: Start streaming Success
[  260.265136] omnivision,ox05b 2-0010: ox05b_start_stream: Stream on Success
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.32 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 30.26 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 30.58 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 30.75 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 30.84 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 30.91 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 30.95 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 31.23 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 31.23 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 31.23 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 31.23 fps
^C[  271.315448] analog,max96716 2-0028: Stop streaming Success
[  271.321847] omnivision,ox05b 2-0010: ox05b_stop_stream: Stream off Success
[  272.403595] ti-udma 4e230000.dma-controller: chan1 teardown timeout!

I can't get the camera data after this error occurs, what should I do to fix this problem?

Thanks，

Yuwei

9 months ago

0 Jianzhong Xu 9 months ago

TI__Guru 59085 points

Hello Yuwei,

What is the sensor format? Can you share the "media-ctl -p" output? Looks like you're using ox05b, right?

I can stream using ox05b with format BGGI 10-bit:

root@am62axx-evm:/opt/edgeai-gst-apps# v4l2-ctl -d /dev/video3 --set-fmt-video=width=2592,height=1944,pixelformat=BGI0 --stream-mmap --stream-loop
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 29.83 fps
<<<<<^C
root@am62axx-evm:/opt/edgeai-gst-apps#

Thanks,

Jianzhong

0 YuWei Wu 9 months ago in reply to Jianzhong Xu

Intellectual 270 points

Hi Jianzhong,

Jianzhong Xu said:
Looks like you're using ox05b, right?

Yes, the camera I am using is ox05b.

The output of the command "media-ctl -p" is as follows:

Media controller API version 5.10.168

Media device information
------------------------
driver          j721e-csi2rx
model           TI-CSI2RX
serial
bus info        platform:30102000.ticsi2rx
hw revision     0x1
driver version  5.10.168

Device topology
- entity 1: 30102000.ticsi2rx (12 pads, 10 links, 4 routes)
            type V4L2 subdev subtype Unknown flags 0
            device node name /dev/v4l-subdev0
        routes:
                0/0 -> 6/0 [ACTIVE]
                1/0 -> 7/0 [ACTIVE]
                2/0 -> 8/0 [ACTIVE]
                3/0 -> 9/0 [ACTIVE]
        pad0: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "cdns_csi2rx.30101000.csi-bridge":4 [ENABLED,IMMUTABLE]
        pad1: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "cdns_csi2rx.30101000.csi-bridge":5 [ENABLED,IMMUTABLE]
        pad2: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "cdns_csi2rx.30101000.csi-bridge":6 [ENABLED,IMMUTABLE]
        pad3: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "cdns_csi2rx.30101000.csi-bridge":7 [ENABLED,IMMUTABLE]
        pad4: Sink
        pad5: Sink
        pad6: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx context 0":0 [ENABLED,IMMUTABLE]
        pad7: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx context 1":0 [ENABLED,IMMUTABLE]
        pad8: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx context 2":0 [ENABLED,IMMUTABLE]
        pad9: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx context 3":0 [ENABLED,IMMUTABLE]
        pad10: Source
                -> "30102000.ticsi2rx context 4":0 [ENABLED,IMMUTABLE]
        pad11: Source
                -> "30102000.ticsi2rx context 5":0 [ENABLED,IMMUTABLE]

- entity 14: cdns_csi2rx.30101000.csi-bridge (8 pads, 7 links, 0 route)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev1
        pad0: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "analog,max96716 2-0028":3 [ENABLED,IMMUTABLE]
        pad1: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "analog,max96716 2-0028":4 [ENABLED,IMMUTABLE]
        pad2: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "analog,max96716 2-0028":5 [ENABLED,IMMUTABLE]
        pad3: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
        pad4: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx":0 [ENABLED,IMMUTABLE]
        pad5: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx":1 [ENABLED,IMMUTABLE]
        pad6: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx":2 [ENABLED,IMMUTABLE]
        pad7: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx":3 [ENABLED,IMMUTABLE]

- entity 23: analog,max96716 2-0028 (6 pads, 6 links, 3 routes)
             type V4L2 subdev subtype Unknown flags 0
             device node name /dev/v4l-subdev2
        routes:
                0/0 -> 3/0 [ACTIVE]
                1/0 -> 4/0 [ACTIVE]
                2/0 -> 5/0 [ACTIVE]
        pad0: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "omnivision,ox03c 2-0036":0 [ENABLED,IMMUTABLE]
        pad1: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "omnivision,ox05b 2-0010":0 [ENABLED,IMMUTABLE]
        pad2: Sink
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "omnivision,ox05b 2-0010":1 [ENABLED,IMMUTABLE]
        pad3: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "cdns_csi2rx.30101000.csi-bridge":0 [ENABLED,IMMUTABLE]
        pad4: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "cdns_csi2rx.30101000.csi-bridge":1 [ENABLED,IMMUTABLE]
        pad5: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "cdns_csi2rx.30101000.csi-bridge":2 [ENABLED,IMMUTABLE]

- entity 36: omnivision,ox03c 2-0036 (1 pad, 1 link, 0 route)
             type V4L2 subdev subtype Sensor flags 0
             device node name /dev/v4l-subdev3
        pad0: Source
                [stream:0 fmt:SBGGR12_1X12/1920x1280 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "analog,max96716 2-0028":0 [ENABLED,IMMUTABLE]

- entity 40: omnivision,ox05b 2-0010 (2 pads, 2 links, 2 routes)
             type V4L2 subdev subtype Sensor flags 0
             device node name /dev/v4l-subdev4
        routes:
                0/0 -> 0/0 [ACTIVE, IMMUTABLE, SOURCE]
                0/0 -> 1/0 [ACTIVE, IMMUTABLE, SOURCE]
        pad0: Source
                [stream:0 fmt:SBGGI10_1X10/2592x1944 field:none]
                -> "analog,max96716 2-0028":1 [ENABLED,IMMUTABLE]
        pad1: Source
                [stream:0 fmt:SBGGI10_1X10/2592x1944 field:none]
                -> "analog,max96716 2-0028":2 [ENABLED,IMMUTABLE]

- entity 55: 30102000.ticsi2rx context 0 (1 pad, 1 link, 0 route)
             type Node subtype V4L flags 0
             device node name /dev/video2
        pad0: Sink
                <- "30102000.ticsi2rx":6 [ENABLED,IMMUTABLE]

- entity 61: 30102000.ticsi2rx context 1 (1 pad, 1 link, 0 route)
             type Node subtype V4L flags 0
             device node name /dev/video3
        pad0: Sink
                <- "30102000.ticsi2rx":7 [ENABLED,IMMUTABLE]

- entity 67: 30102000.ticsi2rx context 2 (1 pad, 1 link, 0 route)
             type Node subtype V4L flags 0
             device node name /dev/video4
        pad0: Sink
                <- "30102000.ticsi2rx":8 [ENABLED,IMMUTABLE]

- entity 73: 30102000.ticsi2rx context 3 (1 pad, 1 link, 0 route)
             type Node subtype V4L flags 0
             device node name /dev/video5
        pad0: Sink
                <- "30102000.ticsi2rx":9 [ENABLED,IMMUTABLE]

- entity 79: 30102000.ticsi2rx context 4 (1 pad, 1 link, 0 route)
             type Node subtype V4L flags 0
             device node name /dev/video6
        pad0: Sink
                <- "30102000.ticsi2rx":10 [ENABLED,IMMUTABLE]

- entity 85: 30102000.ticsi2rx context 5 (1 pad, 1 link, 0 route)
             type Node subtype V4L flags 0
             device node name /dev/video7
        pad0: Sink
                <- "30102000.ticsi2rx":11 [ENABLED,IMMUTABLE]

The SDK version I'm using is 0806.

I fixed the virtual channels of the ox05b camera to VC1 and VC2.

Sometimes I turn on the camera and I get the above problem.

I think the most important error logs are as follows:

[  272.403595] ti-udma 4e230000.dma-controller: chan1 teardown timeout!

How should I fix this?

Thanks,

Yuwei

0 Jianzhong Xu 9 months ago in reply to YuWei Wu

TI__Guru 59085 points

Hi Yuwei,

Looks like you are connecting two cameras through max96716. I noticed the ox05b format (SBGGI10_1X10) is not supported in max96716's sink pads, cdns_csi2rx's pads, and 30102000.ticsi2rx's pads. That might be the reason.

Regards,

Jianzhong

0 YuWei Wu 8 months ago in reply to Jianzhong Xu

Intellectual 270 points

Hi Jianzhong,

Jianzhong Xu said:
I noticed the ox05b format (SBGGI10_1X10) is not supported in max96716's sink pads, cdns_csi2rx's pads, and 30102000.ticsi2rx's pads

I think the pad format is defined by me in the driver.

The format of the data to be transferred by DMA is specified by the v4l2-ctl command.

v4l2-ctl -d /dev/video3 --set-fmt-video=width=1920,height=1280,pixelformat=RG10

The correct data format should not affect the handling and exit of the DMA.

After I switched to the SBGGI10_1X10 format, the problem persisted.

Is the cause of this issue because I am using SDK version 8.6?

Thanks,

Yuwei

0 Jianzhong Xu 8 months ago in reply to YuWei Wu

TI__Guru 59085 points

Hello Yuwei,

Can you try SDK 9.2 or 10.0?

Regards,

Jianzhong

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SK-AM62A-LP: Error reported when using webcam: ti-udma 4e230000.dma-controller: chan2 teardown timeout!