i.MX Processorsのトピックimx8qxp, open the Android camera application, the preview interface has no content

imx8qxp, open the Android camera application, the preview interface has no content

relax-wu — Mon, 29 Mar 2021 01:22:27 GMT

Who can help me?

SDK：Android Q10.0.0_2.2.0_AUTO

nvp6324 connect 4 cameras
The evs function of the product mek_8q_car-userdebug has been adjusted, but the camera apk cannot be used to open the camera.
Therefore, I switched the product to mek_8q-userdebug to test the traditional method of using the camera, and I am currently experiencing problems:
The camera apk opens and previews no content.

Core video information

mek_8q:/ # ls sys/class/video4linux/ v4l-subdev0 v4l-subdev2 v4l-subdev4 video0 video12 video2 v4l-subdev1 v4l-subdev3 v4l-subdev5 video1 video13 video3 mek_8q:/ # cat sys/class/video4linux/video0/name mxc_isi.0.capture mek_8q:/ # cat sys/class/video4linux/video1/name mxc_isi.1.capture mek_8q:/ # cat sys/class/video4linux/video12/name vpu decoder mek_8q:/ # cat sys/class/video4linux/video13/name vpu encoder mek_8q:/ # cat sys/class/video4linux/video2/name mxc_isi.2.capture mek_8q:/ # cat sys/class/video4linux/video3/name mxc_isi.3.capture mek_8q:/ #

main error log

03-26 02:12:12.937 433 2408 E Camera3-Stream: getBuffer: wait for output buffer return timed out after 8000ms (max_buffers 2) 03-26 02:12:12.938 433 2408 V Camera3-Stream: getBuffer: Already dequeued max output buffers (2), wait for next returned one.

logcat_boot.log is the log of Android boot。

logcat_preview.log is the log of camera apk preview.

Re: imx8qxp, open the Android camera application, the preview interface has no content

Zhiming_Liu — Tue, 30 Mar 2021 01:29:20 GMT

Can you offer the kernel log?

Zhiming

Re: imx8qxp, open the Android camera application, the preview interface has no content

relax-wu — Tue, 30 Mar 2021 03:06:41 GMT

Thank you for your reply,
Please.

Best wishes

Re: imx8qxp, open the Android camera application, the preview interface has no content

Zhiming_Liu — Tue, 30 Mar 2021 05:52:31 GMT

The error happened in CameraHAL.Failed in below command.You need see if your camera support VIDIOC_DBG_G_CHIP_IDENT.

ret = ioctl(fd, VIDIOC_DBG_G_CHIP_IDENT, &vidChip);

Re: imx8qxp, open the Android camera application, the preview interface has no content

relax-wu — Wed, 31 Mar 2021 01:15:03 GMT

I have solved this problem，

ioctl(fd, VIDIOC_DBG_G_CHIP_IDENT, &vidChip)

--- a/android_build/vendor/nxp-opensource/kernel_imx/drivers/staging/media/imx/imx8-isi-cap.c +++ b/android_build/vendor/nxp-opensource/kernel_imx/drivers/staging/media/imx/imx8-isi-cap.c @@ -1170,6 +1170,15 @@ static int mxc_isi_cap_s_selection(struct file *file, void *fh, return 0; } +static int mxc_isi_cap_g_chip_ident(struct file *file, void *fh, + struct v4l2_dbg_chip_ident *chip) +{ + chip->match.type = V4L2_CHIP_MATCH_I2C_DRIVER; + strcpy(chip->match.name, "nvp6324_mipi_camera"); + + return 0; +} + static int mxc_isi_cap_enum_framesizes(struct file *file, void *priv, struct v4l2_frmsizeenum *fsize) { @@ -1285,6 +1294,7 @@ static const struct v4l2_ioctl_ops mxc_isi_capture_ioctl_ops = { .vidioc_g_selection = mxc_isi_cap_g_selection, .vidioc_s_selection = mxc_isi_cap_s_selection, + .vidioc_g_chip_ident = mxc_isi_cap_g_chip_ident, .vidioc_enum_framesizes = mxc_isi_cap_enum_framesizes, .vidioc_enum_frameintervals = mxc_isi_cap_enum_frameintervals,

The preview interface still has no content。

Re: imx8qxp, open the Android camera application, the preview interface has no content

relax-wu — Wed, 31 Mar 2021 02:34:07 GMT

I saw another problem I was trying to solve

E FslCameraHAL: onDeviceConfigureLocked: VIDIOC_S_PARM Failed: Not a typewriter E FslCameraHAL: handleConfigureLocked onDeviceConfigure failed

Re: imx8qxp, open the Android camera application, the preview interface has no content

relax-wu — Wed, 31 Mar 2021 08:20:17 GMT

Please help to see how to solve it。

Here is the main problem

ret = ioctl(mDev, VIDIOC_S_PARM, &param); if (ret < 0) { ALOGE("%s: VIDIOC_S_PARM Failed: %s", __func__, strerror(errno)); return ret; }

error log

E FslCameraHAL: onDeviceConfigureLocked: VIDIOC_S_PARM Failed: Not a typewriter E FslCameraHAL: handleConfigureLocked onDeviceConfigure failed

in the kernel

//vendor/nxp-opensource/kernel_imx/drivers/staging/media/imx/imx8-isi-cap.c static int mxc_isi_cap_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) { struct mxc_isi_cap_dev *isi_cap = video_drvdata(file); struct v4l2_subdev *sd; sd = mxc_get_remote_subdev(isi_cap, __func__); if (!sd) return -ENODEV; return v4l2_s_parm_cap(video_devdata(file), sd, a); }

Did not call nvp6324_s_parm。

The following three functions are called

.enum_frame_size = nvp6324_enum_framesizes, .get_fmt = nvp6324_get_fmt, .set_fmt = nvp6324_set_fmt,

Re: imx8qxp, open the Android camera application, the preview interface has no content

Zhiming_Liu — Thu, 01 Apr 2021 03:41:12 GMT

I will consult with software team.

Re: imx8qxp, open the Android camera application, the preview interface has no content

relax-wu — Thu, 01 Apr 2021 05:15:15 GMT

thank you very much
The relevant documents are as follows:

//HAL //vendor/nxp-opensource/imx/libcamera3/ImxCamera.cpp ImxCamera::ImxCameraDMAStream::onDeviceConfigureLocked() ret = ioctl(mDev, VIDIOC_S_PARM, &param); if (ret < 0) { ALOGE("%s: VIDIOC_S_PARM Failed: %s", __func__, strerror(errno)); return ret; } //kernel //vendor/nxp-opensource/kernel_imx/drivers/staging/media/imx/imx8-isi-cap.c static int mxc_isi_cap_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) { struct mxc_isi_cap_dev *isi_cap = video_drvdata(file); struct v4l2_subdev *sd; sd = mxc_get_remote_subdev(isi_cap, __func__); if (!sd) return -ENODEV; return v4l2_s_parm_cap(video_devdata(file), sd, a); } //vendor/nxp-opensource/kernel_imx/drivers/media/platform/imx8/nvp6324/nvp6324_video.c static int nvp6324_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a) { ...... }

Re: imx8qxp, open the Android camera application, the preview interface has no content

relax-wu — Tue, 06 Apr 2021 01:39:16 GMT

Hi nxf65025

Is there any good news?

Best wishes