AM5728: Writing Camera HAL in Android SDK

Devashish Tiwari

Part Number: AM5728
Other Parts Discussed in Thread: TMDSEVM572X,

Hello, TI Experts,

I have an AM572x Evaluation Module TMDSEVM572X with me. I have successfully built and compiled the Android SDK on it.

I found that the camera app is not working (getting crashed). The board is not able to detect the camera device/module even though it is attached to the board.

However, when I tried to connect an external USB camera to the board and installed a simple USB camera app to detect it, I found it working absolutely fine, to my surprise.

On digging deeper, I found that, as per this thread, TI does not support the AM57xx camera module in Android SDK.

But also they have mentioned (in the thread itself) that it might be possible to get it working if one does changes around HAL.

I have a few files related to camera module present at the hardware/libhardware/modules/camera path. But I have no code present related to am57xx inside the vendor directory.

I don't have a lot of knowledge around HAL subsystem, but I want my board to detect the built-in system camera instead of an external USB camera.

Does anyone know how should I proceed from here?

Really appreciate your help.

Thanks,

Devashish

over 6 years ago

0 Praneeth Bajjuri over 6 years ago

TI__Expert 6516 points

1. What Android SDK are you using with TMDSEVM572X ? The camera HAL code cleanup happened across 4.x releases so it will be good to know what release you are using so that we can comment accordingly
2. Adding additional comments to the "thread" mentioned above,
Everything w.r.t enabling video encode , communication with HW Accel ( M4-IPU) and video pipelines handling thru Android camera and display HAL (thru hardware/ti/dra7xx/* ) is not supported in the current release ( this is needed for built-in camera).
a USB camera communication doesnt go thru the route mentioned above . See for more details : source.android.com/.../external-usb-cameras
If this is working out of the box, that means the default configuration from android sdk released by google is functional.
We do run full Android CTS and VTS for recommended software compatibility are there thru SDK development cycle.

0 Devashish Tiwari over 6 years ago in reply to Praneeth Bajjuri

Expert 1435 points

I am currently using Android SDK version - 5.03

0 Krunal Bhargav34 over 6 years ago in reply to Devashish Tiwari

TI__Mastermind 45015 points

Hello,

As Praneeth mentioned video pipelines handling thru Android camera and display HAL (thru hardware/ti/dra7xx/* ) is not supported in PSDK5.03.

Regards,
Krunal

0 Devashish Tiwari over 6 years ago in reply to Krunal Bhargav34

Expert 1435 points

Hello,

(thru hardware/ti/dra7xx/*)

Just want to clear a small doubt, you are talking about dra7xx chipset, I am using am5728 chipset.

In which chipset, it is not supported - dra7xx or am57xx or both?

Further, is it planned in the near future to provide camera support in Android?

0 Krunal Bhargav34 over 6 years ago in reply to Devashish Tiwari

TI__Mastermind 45015 points

Hello,

The project is same for dra7xx and am57xx since they belong to the same processor family. As of now, we do not have any plans for camera support in Android.

Regards,
Krunal

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AM5728: Writing Camera HAL in Android SDK

I have an AM572x Evaluation Module TMDSEVM572X with me. I have successfully built and compiled the Android SDK on it.