/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2019, Google Inc. * * controls.cpp - V4L2 device controls handling test */ #include <iostream> #include <limits.h> #include "v4l2_videodevice.h" #include "v4l2_videodevice_test.h" using namespace std; using namespace libcamera; class V4L2ControlTest : public V4L2VideoDeviceTest { public: V4L2ControlTest() : V4L2VideoDeviceTest("vivid", "vivid-000-vid-cap") { } protected: int run() { const ControlInfoMap &info = capture_->controls(); /* Test control enumeration. */ if (info.empty()) { cerr << "Failed to enumerate controls" << endl; return TestFail; } if (info.find(V4L2_CID_BRIGHTNESS) == info.end() || info.find(V4L2_CID_CONTRAST) == info.end() || info.find(V4L2_CID_SATURATION) == info.end()) { cerr << "Missing controls" << endl; return TestFail; } const ControlRange &brightness = info.find(V4L2_CID_BRIGHTNESS)->second; const ControlRange &contrast = info.find(V4L2_CID_CONTRAST)->second; const ControlRange &saturation = info.find(V4L2_CID_SATURATION)->second; /* Test getting controls. */ ControlList ctrls(info); ctrls.set(V4L2_CID_BRIGHTNESS, -1); ctrls.set(V4L2_CID_CONTRAST, -1); ctrls.set(V4L2_CID_SATURATION, -1); int ret = capture_->getControls(&ctrls); if (ret) { cerr << "Failed to get controls" << endl; return TestFail; } if (ctrls.get(V4L2_CID_BRIGHTNESS).get<int32_t>() == -1 || ctrls.get(V4L2_CID_CONTRAST).get<int32_t>() == -1 || ctrls.get(V4L2_CID_SATURATION).get<int32_t>() == -1) { cerr << "Incorrect value for retrieved controls" << endl; return TestFail; } /* Test setting controls. */ ctrls.set(V4L2_CID_BRIGHTNESS, brightness.min()); ctrls.set(V4L2_CID_CONTRAST, contrast.max()); ctrls.set(V4L2_CID_SATURATION, saturation.min()); ret = capture_->setControls(&ctrls); if (ret) { cerr << "Failed to set controls" << endl; return TestFail; } /* Test setting controls outside of range. */ ctrls.set(V4L2_CID_BRIGHTNESS, brightness.min().get<int32_t>() - 1); ctrls.set(V4L2_CID_CONTRAST, contrast.max().get<int32_t>() + 1); ctrls.set(V4L2_CID_SATURATION, saturation.min().get<int32_t>() + 1); ret = capture_->setControls(&ctrls); if (ret) { cerr << "Failed to set controls (out of range)" << endl; return TestFail; } if (ctrls.get(V4L2_CID_BRIGHTNESS) != brightness.min() || ctrls.get(V4L2_CID_CONTRAST) != contrast.max() || ctrls.get(V4L2_CID_SATURATION) != saturation.min().get<int32_t>() + 1) { cerr << "Controls not updated when set" << endl; return TestFail; } return TestPass; } }; TEST_REGISTER(V4L2ControlTest);