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AM6548: V4L2 camera driver

Enrique Ramirez1
Prodigy 70 points

Part Number: AM6548

Hi,

I'm working on a V4l2 driver for a MIPI camera to work on the AM65X platform using kernel 4.19.38 and I have some questions:

1. Do you have like a developer's guide in order to create V4l2 drivers for this platform?

2. Do you have a V4l2 driver that it's already working and tested on the AM65X? Can you share the reference?

3. Do we need to developed the driver using The Camera Adaptation Layer is designed (CAL)?

4. Is CAL support Media Controller?

5. Is there any other different software to control the capture subsystem than CAL (using Media Controller)? 

Thanks,

-Enrique

  • 0
    TI__Guru**** 393215 points
    Hi,
    You query has been assigned to a TI engineer. Please note that response may be delayed due to Christmas and New Year holidays.
  • 0
    TI__Mastermind 22946 points

    Enrique Ramirez1 said:
    1. Do you have like a developer's guide in order to create V4l2 drivers for this platform?

    Please refer to this document 

    Enrique Ramirez1 said:
    2. Do you have a V4l2 driver that it's already working and tested on the AM65X? Can you share the reference?

    Yes, the v4l2 CAL driver is already supported for AM654x device. Above document hasn't been updated to add AM654x device to the list but the content is applicable for the driver on this device. Regarding the sensor driver,  you can refer to ov5640 sensor driver to work with CAL. 

    Enrique Ramirez1 said:
    3. Do we need to developed the driver using The Camera Adaptation Layer is designed (CAL)?

    Please refer to the document 

    Enrique Ramirez1 said:
    4. Is CAL support Media Controller?

    It doesn't support media controller

  • 0 in reply to Manisha Agrawal
    Prodigy 70 points

    Hi,

    Thanks for your answers.

    It seems that the documentation is not very updated.

    Reviewing the ov5640 driver I found media controller definitions so I'm confused. If CAL do not support media controller, why the ov5640 driver has media controller definitions?

    Do you have a this sensor (ov5640) working on the AM654x?

    -Enrique

  • 0 in reply to Enrique Ramirez1
    TI__Mastermind 22946 points

    Hi Enrique, 

    The CAL driver documentation is updated now. 

    ov5640 driver is from open source kernel and might be getting used with other CSI-2 drivers that support media controller. The CAL driver in AM654x device doesn't support media controller and hence having the support on the sensor driver won't make difference. 

    Regards,

    Manisha