sdcard-images-utils: nvidia: patches: ubuntu_overlay: dynamically discover v4l-subdev using media-ctl command

Signed-off-by: Sivasubramanaiyan Padmanaban <sivasubramaniyan.padmanaban@analog.com>

Author: SPadmana95

sdcard-images-utils/nvidia/patches/ubuntu_overlay/Tools/adi-adsd3500-enable-external-fsync.sh

@@ -1,5 +1,19 @@
 #!/bin/bash
 
+MEDIA_DEVICE="/dev/media0"
+DOT_OUTPUT=$(media-ctl -d "$MEDIA_DEVICE" --print-dot)
+DOT_OUTPUT=$(echo "$DOT_OUTPUT" | sed 's/\\n/\n/g')
+SUBDEV_PATH=$(echo "$DOT_OUTPUT" | awk '/adsd3500/ {getline; if ($0 ~ /\/dev\/v4l-subdev/) print $1}' | tr -d '",')
+VIDEO_PATH=$(echo "$DOT_OUTPUT" | awk '/vi-output, adsd3500/ {getline; if ($0 ~ /\/dev\/video/) print $1}' | tr -d '",')
+
+if [[ -n "$SUBDEV_PATH" && -n "$VIDEO_PATH" ]]; then
+    echo "adsd3500 subdev: $SUBDEV_PATH" > /dev/null
+    echo "adsd3500 video : $VIDEO_PATH"  > /dev/null
+else
+    echo "adsd3500 device not found in $MEDIA_DEVICE"
+    exit 1
+fi
+
 # export NET HOST_IO_SEL Pin
 if [ ! -d /sys/class/gpio/gpio305 ]
 then
@@ -21,4 +35,4 @@ echo 0 > /sys/class/gpio/gpio305/value
 echo 0 > /sys/class/gpio/gpio308/value
 
 # Enable external fsync
-v4l2-ctl --set-ctrl=fsync_trigger=0 -d /dev/v4l-subdev1
+v4l2-ctl --set-ctrl=fsync_trigger=0 -d $SUBDEV_PATH

sdcard-images-utils/nvidia/patches/ubuntu_overlay/Tools/adi-adsd3500-enable-interrupt.sh

@@ -1,5 +1,19 @@
 #!/bin/bash
 
+MEDIA_DEVICE="/dev/media0"
+DOT_OUTPUT=$(media-ctl -d "$MEDIA_DEVICE" --print-dot)
+DOT_OUTPUT=$(echo "$DOT_OUTPUT" | sed 's/\\n/\n/g')
+SUBDEV_PATH=$(echo "$DOT_OUTPUT" | awk '/adsd3500/ {getline; if ($0 ~ /\/dev\/v4l-subdev/) print $1}' | tr -d '",')
+VIDEO_PATH=$(echo "$DOT_OUTPUT" | awk '/vi-output, adsd3500/ {getline; if ($0 ~ /\/dev\/video/) print $1}' | tr -d '",')
+
+if [[ -n "$SUBDEV_PATH" && -n "$VIDEO_PATH" ]]; then
+    echo "adsd3500 subdev: $SUBDEV_PATH" > /dev/null
+    echo "adsd3500 video : $VIDEO_PATH"  > /dev/null
+else
+    echo "adsd3500 device not found in $MEDIA_DEVICE"
+    exit 1
+fi
+
 # export NET HOST_IO_SEL Pin
 if [ ! -d /sys/class/gpio/gpio305 ]
 then
@@ -21,4 +35,4 @@ echo 1 > /sys/class/gpio/gpio305/value
 echo 1 > /sys/class/gpio/gpio308/value
 
 # Enable interrupt support
-v4l2-ctl --set-ctrl=fsync_trigger=1 -d /dev/v4l-subdev1
+v4l2-ctl --set-ctrl=fsync_trigger=1 -d $SUBDEV_PATH

sdcard-images-utils/nvidia/patches/ubuntu_overlay/Tools/host_boot_tools/adi-adsd3500-host-boot.sh

@@ -2,6 +2,20 @@
 
 MODULE=$(strings /proc/device-tree/tegra-camera-platform/modules/module0/badge)
 
+MEDIA_DEVICE="/dev/media0"
+DOT_OUTPUT=$(media-ctl -d "$MEDIA_DEVICE" --print-dot)
+DOT_OUTPUT=$(echo "$DOT_OUTPUT" | sed 's/\\n/\n/g')
+SUBDEV_PATH=$(echo "$DOT_OUTPUT" | awk '/adsd3500/ {getline; if ($0 ~ /\/dev\/v4l-subdev/) print $1}' | tr -d '",')
+VIDEO_PATH=$(echo "$DOT_OUTPUT" | awk '/vi-output, adsd3500/ {getline; if ($0 ~ /\/dev\/video/) print $1}' | tr -d '",')
+
+if [[ -n "$SUBDEV_PATH" && -n "$VIDEO_PATH" ]]; then
+    echo "adsd3500 subdev: $SUBDEV_PATH" > /dev/null
+    echo "adsd3500 video : $VIDEO_PATH"  > /dev/null
+else
+    echo "adsd3500 device not found in $MEDIA_DEVICE"
+    exit 1
+fi
+
 adsd3500_power_sequence(){
 
 	#Pull ADSD3500 reset low
@@ -48,16 +62,16 @@ adsd3500_power_sequence(){
 
 load_firmware() {
 
-    VALUE=$(v4l2-ctl -d /dev/v4l-subdev1 --get-ctrl load_firmware)
+    VALUE=$(v4l2-ctl -d $SUBDEV_PATH --get-ctrl load_firmware)
     echo "The read value is $VALUE"
 
     if [ "$VALUE" = "load_firmware: 0" ]; then
         echo "Send host boot firmware to ADSD3500"
-        v4l2-ctl -d /dev/v4l-subdev1 --set-ctrl load_firmware=1
+        v4l2-ctl -d $SUBDEV_PATH --set-ctrl load_firmware=1
         ret=$?
     elif [ "$VALUE" = "load_firmware: 1" ]; then
         echo "Send host boot firmware to ADSD3500"
-        v4l2-ctl -d /dev/v4l-subdev1 --set-ctrl load_firmware=0
+        v4l2-ctl -d $SUBDEV_PATH --set-ctrl load_firmware=0
         ret=$?
     else
         echo "Unexpected value: $VALUE"