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ADV7282A Linux driver for IMX6: Difference between revisions
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Execute the command: | Execute the command: | ||
< | <syntaxhighlight lang=bash> | ||
ls /proc/device-tree/./soc/aips-bus@02100000/i2c@021a8000/adv7282@21 | ls /proc/device-tree/./soc/aips-bus@02100000/i2c@021a8000/adv7282@21 | ||
</ | </syntaxhighlight> | ||
The output returned is the following: | The output returned is the following: | ||
< | <syntaxhighlight lang=bash> | ||
AVDD-supply DVDD-supply clock-names compatible mclk name pinctrl-names status | AVDD-supply DVDD-supply clock-names compatible mclk name pinctrl-names status | ||
DOVDD-supply PVDD-supply clocks csi_id mclk_source pinctrl-0 reg | DOVDD-supply PVDD-supply clocks csi_id mclk_source pinctrl-0 reg | ||
</ | </syntaxhighlight> | ||
===Verify if the driver is loaded=== | ===Verify if the driver is loaded=== | ||
Execute the command: | Execute the command: | ||
< | <syntaxhighlight lang=bash> | ||
lsmod | lsmod | ||
</ | </syntaxhighlight> | ||
The output returned is the following: | The output returned is the following: | ||
< | <syntaxhighlight lang=bash> | ||
Module Size Used by | Module Size Used by | ||
usb_f_hid 8735 2 | usb_f_hid 8735 2 | ||
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configfs 23790 5 usb_f_acm,usb_f_mass_storage,libcomposite,usb_f_hid | configfs 23790 5 usb_f_acm,usb_f_mass_storage,libcomposite,usb_f_hid | ||
galcore 366496 0 | galcore 366496 0 | ||
</ | </syntaxhighlight> | ||
==Video Capture== | ==Video Capture== | ||
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Execute the command: | Execute the command: | ||
< | <syntaxhighlight lang=bash> | ||
GST_DEBUG=3 gst-launch-1.0 imxv4l2videosrc ! imxipuvideotransform ! queue ! imxg2dvideosink async=false sync=false | GST_DEBUG=3 gst-launch-1.0 imxv4l2videosrc ! imxipuvideotransform ! queue ! imxg2dvideosink async=false sync=false | ||
</ | </syntaxhighlight> | ||
The output returned is the following: | The output returned is the following: | ||
<source lang="bash"> | <source lang="bash"> | ||
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Freeing pipeline ... | Freeing pipeline ... | ||
[16330.053914] imx-ipuv3 2400000.ipu: IPU Warning - IPU_INT_STAT_5 = 0x00000001 | [16330.053914] imx-ipuv3 2400000.ipu: IPU Warning - IPU_INT_STAT_5 = 0x00000001 | ||
</ | </syntaxhighlight> | ||
Take a picture: | Take a picture: | ||
< | <syntaxhighlight lang=bash> | ||
gst-launch-1.0 imxv4l2videosrc num-buffers=1 ! jpegenc ! filesink location=test.jpg | gst-launch-1.0 imxv4l2videosrc num-buffers=1 ! jpegenc ! filesink location=test.jpg | ||
</ | </syntaxhighlight> | ||
The output returned is the following: | The output returned is the following: | ||
< | <syntaxhighlight lang=bash> | ||
Setting pipeline to PAUSED ... | Setting pipeline to PAUSED ... | ||
Pipeline is live and does not need PREROLL ... | Pipeline is live and does not need PREROLL ... | ||
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Setting pipeline to NULL ... | Setting pipeline to NULL ... | ||
Freeing pipeline ... | Freeing pipeline ... | ||
</ | </syntaxhighlight> | ||
=== Driver input selection control=== | === Driver input selection control=== | ||
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This is the pipeline used to capture from the Video 1 | This is the pipeline used to capture from the Video 1 | ||
< | <syntaxhighlight lang=bash> | ||
gst-launch-1.0 imxv4l2videosrc input=1 ! imxipuvideotransform ! queue ! imxg2dvideosink async=false sync=false | gst-launch-1.0 imxv4l2videosrc input=1 ! imxipuvideotransform ! queue ! imxg2dvideosink async=false sync=false | ||
</ | </syntaxhighlight> | ||
This is the pipeline used to capture from the Video 2 | This is the pipeline used to capture from the Video 2 | ||
< | <syntaxhighlight lang=bash> | ||
gst-launch-1.0 imxv4l2videosrc input=2 ! imxipuvideotransform ! queue ! imxg2dvideosink async=false sync=false | gst-launch-1.0 imxv4l2videosrc input=2 ! imxipuvideotransform ! queue ! imxg2dvideosink async=false sync=false | ||
</ | </syntaxhighlight> | ||
Also you can use v4l2-ctl to select the video input, these are the commands: | Also you can use v4l2-ctl to select the video input, these are the commands: | ||
< | <syntaxhighlight lang=bash> | ||
v4l2-ctl --set-input 1 | v4l2-ctl --set-input 1 | ||
v4l2-ctl --set-input 2 | v4l2-ctl --set-input 2 | ||
</ | </syntaxhighlight> | ||
This is the expected output: | This is the expected output: | ||
< | <syntaxhighlight lang=bash> | ||
[ 1795.624535] adv7282 3-0021: Input Ain1 | [ 1795.624535] adv7282 3-0021: Input Ain1 | ||
Video input set to 1 (CSI MEM: Camera, no power) | Video input set to 1 (CSI MEM: Camera, no power) | ||
</ | </syntaxhighlight> | ||
Note: If you use the previous command and after that you run the Gstreamer pipeline, the video input selected is will be overwritten by the imxv4l2videosrc element. | Note: If you use the previous command and after that you run the Gstreamer pipeline, the video input selected is will be overwritten by the imxv4l2videosrc element. | ||
The driver is using VIDIOC_S_INPUT to select the video input. I have created the code below to show the steps required to perform the channel switching. | The driver is using VIDIOC_S_INPUT to select the video input. I have created the code below to show the steps required to perform the channel switching. | ||
< | |||
<syntaxhighlight lang="c"> | |||
#include <fcntl.h> | #include <fcntl.h> | ||
#include <sys/ioctl.h> | #include <sys/ioctl.h> | ||
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return 0; | return 0; | ||
} | } | ||
</ | </syntaxhighlight> | ||
{{ContactUs}} | {{ContactUs}} | ||
[[Category: iMX6]][[Category: AnalogDevices]] | [[Category: iMX6]][[Category: AnalogDevices]] | ||