cameras: Add test for test pattern

pytests/test_cameras_test_patterns.py

+import shlex
 import subprocess
 import tempfile
 
@@ -35,3 +36,33 @@ def test_front():
     file = open("%s" % temp.name, "rb")
     assert(comp_data in file.read(30))
     file.close()
+
+
+def test_big():
+    def call(cmd):
+        return subprocess.check_call(shlex.split(cmd))
+
+    try:
+        call('''media-ctl -d "platform:30b80000.csi" --entity "csi" --set-v4l2 "'csi':0 [fmt:SGRBG8/1052x780 colorspace:raw]"''')
+        call('''media-ctl -d "platform:30b80000.csi" --entity "csi" --set-v4l2 "'imx8mq-mipi-csi2 30b60000.csi':0 [fmt:SGRBG8/1052x780 colorspace:raw]"''')
+        call('''media-ctl -d "platform:30b80000.csi" --entity "csi" --set-v4l2 "'s5k3l6xx 3-002d':0 [fmt:SGRBG8/1052x780 colorspace:raw]"''')
+        call('''media-ctl -d "platform:30b80000.csi" -l "'s5k3l6xx 3-002d':0 -> 'imx8mq-mipi-csi2 30b60000.csi':0 [1]"''')
+    except subprocess.CalledProcessError as e:
+        raise RuntimeError("media-ctl error: %s " % (e.returncode))
+
+    try:
+        # gray test pttern
+        call('''v4l2-ctl --media-bus-info platform:30b80000.csi --device 's5k3l6xx 3-002d' --set-ctrl=test_pattern=5''')
+    except subprocess.CalledProcessError as e:
+        raise RuntimeError("v4l2-ctl sensor setting error: %s " % (e.returncode))
+
+    try:
+        with tempfile.NamedTemporaryFile(mode='rb') as tempf:
+            call('''v4l2-ctl --device="/dev/v4l/by-path/platform-30b80000.csi-video-index0" --set-fmt-video=width=1052,height=780,pixelformat=GRBG --stream-mmap --stream-skip=3 --stream-count=1 --stream-to={}'''.format(tempf.name))
+
+            comp_data = bytearray([0x10] * 0xc8550)
+            assert(comp_data == tempf.read())
+    except subprocess.CalledProcessError as e:
+        raise RuntimeError("v4l2-ctl streaming error: %s " % (e.returncode))
+    finally:
+        call('''v4l2-ctl --media-bus-info platform:30b80000.csi --device 's5k3l6xx 3-002d' --set-ctrl=test_pattern=0''')