AM69: How to get video streaming from imx219 sensor

Hi sixian xing,

Does the camera enumerate when you log into the shell? What SDK are you using?

Best,
Jared

Hi Jared

Yes, there are more than 4 video* devices listed in the /dev, and 0x10 i2c slave address  can be scaned via i2cdetect tool

Hi sixian xing,

I meant, do you see something like this:

IMX219 Camera 0 detected
    device = /dev/video-imx219-cam0
    name = imx219
    format = [fmt:SRGGB8_1X8/1920x1080]
    subdev_id = /dev/v4l-imx219-subdev0
    isp_required = yes

Additionally, what does media -p output?

Can you test a yavta command to see if capturing RAW images works?

Best,
Jared

Hi Jared

1. my SDK is:  ti-processor-sdk-linux-am69-sk-11_00_10_01

2. root@am69-sk:~# sh /opt/ti-apps-launcher/setup_cameras.sh
CSI Camera 0 detected
device = /dev/video4
name = imx219
format = [fmt:SRGGB8_1X8/1920x1080]
subdev_id = /dev/v4l-subdev2
isp_required = yes

3. And here are the outputs of media-ctl -p, it seems correct:

Media controller API version 6.12.17

Media device information
------------------------
driver j721e-csi2rx
model TI-CSI2RX
serial
bus info platform:4500000.ticsi2rx
hw revision 0x1
driver version 6.12.17

Device topology
- entity 1: 4500000.ticsi2rx (9 pads, 9 links, 1 route)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev0
routes:
0/0 -> 1/0 [ACTIVE]
pad0: SINK
[stream:0 fmt:UYVY8_1X16/640x480 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
<- "cdns_csi2rx.4504000.csi-bridge":1 [ENABLED,IMMUTABLE]
pad1: SOURCE
[stream:0 fmt:UYVY8_1X16/640x480 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
-> "4500000.ticsi2rx context 0":0 [ENABLED,IMMUTABLE]
pad2: SOURCE
-> "4500000.ticsi2rx context 1":0 [ENABLED,IMMUTABLE]
pad3: SOURCE
-> "4500000.ticsi2rx context 2":0 [ENABLED,IMMUTABLE]
pad4: SOURCE
-> "4500000.ticsi2rx context 3":0 [ENABLED,IMMUTABLE]
pad5: SOURCE
-> "4500000.ticsi2rx context 4":0 [ENABLED,IMMUTABLE]
pad6: SOURCE
-> "4500000.ticsi2rx context 5":0 [ENABLED,IMMUTABLE]
pad7: SOURCE
-> "4500000.ticsi2rx context 6":0 [ENABLED,IMMUTABLE]
pad8: SOURCE
-> "4500000.ticsi2rx context 7":0 [ENABLED,IMMUTABLE]

- entity 11: cdns_csi2rx.4504000.csi-bridge (5 pads, 2 links, 1 route)
type V4L2 subdev subtype Unknown flags 0
device node name /dev/v4l-subdev1
routes:
0/0 -> 1/0 [ACTIVE]
pad0: SINK
[stream:0 fmt:SRGGB8_1X8/1920x1080 field:none colorspace:raw xfer:none ycbcr:601 quantization:full-range]
<- "imx219 7-0010":0 [ENABLED,IMMUTABLE]
pad1: SOURCE
[stream:0 fmt:SRGGB8_1X8/1920x1080 field:none colorspace:raw xfer:none ycbcr:601 quantization:full-range]
-> "4500000.ticsi2rx":0 [ENABLED,IMMUTABLE]
pad2: SOURCE
pad3: SOURCE
pad4: SOURCE

- entity 17: imx219 7-0010 (1 pad, 1 link, 0 routes)
type V4L2 subdev subtype Sensor flags 0
device node name /dev/v4l-subdev2
pad0: SOURCE
[stream:0 fmt:SRGGB8_1X8/1920x1080 field:none colorspace:raw xfer:none ycbcr:601 quantization:full-range
crop.bounds:(8,8)/3280x2464
crop:(688,160)/1920x2160]
-> "cdns_csi2rx.4504000.csi-bridge":0 [ENABLED,IMMUTABLE]

- entity 23: 4500000.ticsi2rx context 0 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video4
pad0: SINK
<- "4500000.ticsi2rx":1 [ENABLED,IMMUTABLE]

- entity 29: 4500000.ticsi2rx context 1 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video5
pad0: SINK
<- "4500000.ticsi2rx":2 [ENABLED,IMMUTABLE]

- entity 35: 4500000.ticsi2rx context 2 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video6
pad0: SINK
<- "4500000.ticsi2rx":3 [ENABLED,IMMUTABLE]

- entity 41: 4500000.ticsi2rx context 3 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video7
pad0: SINK
<- "4500000.ticsi2rx":4 [ENABLED,IMMUTABLE]

- entity 47: 4500000.ticsi2rx context 4 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video8
pad0: SINK
<- "4500000.ticsi2rx":5 [ENABLED,IMMUTABLE]

- entity 53: 4500000.ticsi2rx context 5 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video9
pad0: SINK
<- "4500000.ticsi2rx":6 [ENABLED,IMMUTABLE]

- entity 59: 4500000.ticsi2rx context 6 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video10
pad0: SINK
<- "4500000.ticsi2rx":7 [ENABLED,IMMUTABLE]

- entity 65: 4500000.ticsi2rx context 7 (1 pad, 1 link)
type Node subtype V4L flags 0
device node name /dev/video11
pad0: SINK
<- "4500000.ticsi2rx":8 [ENABLED,IMMUTABLE]

4. And there is a error message "Unable to start streaming: Broken pipe (32)." while runing yavta 

root@am69-sk:~# yavta /dev/video4 -c1 -n4 -s1920x1080 -fSRGGB8 -Fvideo.raw

Device /dev/video4 opened.
Device `j721e-csi2rx' on `platform:4500000.ticsi2rx' (driver 'j721e-csi2rx') supports video, capture, without mplanes.
Video format set: SRGGB8 (42474752) 1920x1080 (stride 1920) field none buffer size 2073600
Video format: SRGGB8 (42474752) 1920x1080 (stride 1920) field none buffer size 2073600
4 buffers requested.
length: 2073600 offset: 0 timestamp type/source: mono/EoF
Buffer 0/0 mapped at address 0xffffa1175000.
length: 2073600 offset: 32768 timestamp type/source: mono/EoF
Buffer 1/0 mapped at address 0xffffa0f7a000.
length: 2073600 offset: 65536 timestamp type/source: mono/EoF
Buffer 2/0 mapped at address 0xffffa0d7f000.
length: 2073600 offset: 98304 timestamp type/source: mono/EoF
Buffer 3/0 mapped at address 0xffffa0b84000.
Unable to start streaming: Broken pipe (32).
4 buffers released.

Hi sixian xing,

Yavta should work. Can you try:

$ yavta -c1 -Fimage.raw /dev/video4

You won't be able to stream video, through. You need to use an EdgeAI release to enable the ISPs, or use a USB camera.

Best,
Jared

Hi Jared

I have a few question:

1. only EdgeAI release can enable the ISPs and get video streaming?

2. should I refer to the Processor SDK Linux Software Developer’s Guide — Processor SDK Linux for AM69A Documentation to use the EdgeAI release?

3. In the current OS, there is a Live camera feature in the TI Apps Launcher, isn't it used for getting video streaming?

4. imx219 should output RGGB10, and the setup_cameras.sh changes the format to RRGB8, if there is no ISP, I think it should not work. And I tried to modify both format in the setup_cameras.sh, none of then can work with command yavta -c1 -Fimage.raw /dev/video4

Hi Jared

applying setup_cameras.sh in this link, I can capture raw data now, thank you for your reply

Hi sixian xing,

Please mark the thread as resolved.

Best,
Jared