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+import os
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+
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+import infra.basetest
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+
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+
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+class TestLibCamera(infra.basetest.BRTest):
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+ # A specific configuration is needed for testing libcamera:
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+ # a kernel config fragment enables v4l2 vimc driver.
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+ # The libevent package is also enabled to have the libcamera "cam"
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+ # test application.
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+ kernel_fragment = \
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+ infra.filepath("tests/package/test_libcamera/linux-vimc.fragment")
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+ config = \
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+ f"""
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+ BR2_aarch64=y
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+ BR2_TOOLCHAIN_EXTERNAL=y
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+ BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
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+ BR2_LINUX_KERNEL=y
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+ BR2_LINUX_KERNEL_CUSTOM_VERSION=y
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+ BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.76"
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+ BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
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+ BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
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+ BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{kernel_fragment}"
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+ BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
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+ BR2_PACKAGE_LIBCAMERA=y
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+ BR2_PACKAGE_LIBCAMERA_PIPELINE_VIMC=y
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+ BR2_PACKAGE_LIBEVENT=y
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+ BR2_TARGET_ROOTFS_CPIO=y
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+ BR2_TARGET_ROOTFS_CPIO_GZIP=y
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+ # BR2_TARGET_ROOTFS_TAR is not set
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+ """
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+
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+ def test_run(self):
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+ img = os.path.join(self.builddir, "images", "rootfs.cpio.gz")
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+ kern = os.path.join(self.builddir, "images", "Image")
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+ self.emulator.boot(arch="aarch64",
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+ kernel=kern,
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+ kernel_cmdline=["console=ttyAMA0"],
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+ options=["-M", "virt", "-cpu", "cortex-a57", "-m", "256M",
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+ "-initrd", img])
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+ self.emulator.login()
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+
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+ # The Kernel config of this test has only one v4l2 vimc
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+ # driver. The camera index is expected to be #1.
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+ cam_idx = 1
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+
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+ # We test libcamera with its simple "cam" application, by
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+ # requesting a list of available cameras.
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+ cmd = "cam --list"
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+ out, ret = self.emulator.run(cmd)
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+ self.assertEqual(ret, 0)
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+ # libcamera generates info messages. We filter only the
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+ # line(s) starting with our camera index.
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+ cam_line = [ln for ln in out if ln.startswith(f"{cam_idx}:")]
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+ # We should have the vimc camera in this line.
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+ self.assertIn("platform/vimc.0", cam_line[0])
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+
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+ # List the camera information.
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+ cmd = f"cam --camera {cam_idx} --info"
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+ self.assertRunOk(cmd)
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+
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+ # List the camera controls and check we have a brightness
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+ # control.
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+ cmd = f"cam --camera {cam_idx} --list-controls"
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+ out, ret = self.emulator.run(cmd)
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+ self.assertEqual(ret, 0)
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+ self.assertIn("Control: Brightness:", "\n".join(out))
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+
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+ # List the camera properties and check we have a camera
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+ # "Model" property.
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+ cmd = f"cam --camera {cam_idx} --list-properties"
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+ out, ret = self.emulator.run(cmd)
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+ self.assertEqual(ret, 0)
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+ self.assertIn("Property: Model = ", "\n".join(out))
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+
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+ # Capture few frames.
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+ cmd = f"cam --camera {cam_idx} --capture=5"
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+ cmd += " --stream width=160,height=120,role=video,pixelformat=RGB888"
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+ self.assertRunOk(cmd)
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Julien Olivain