| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * Copyright (C) 2019, Google Inc. |
| * |
| * controls.cpp - V4L2 device controls handling test |
| */ |
| |
| #include <algorithm> |
| #include <array> |
| #include <iostream> |
| #include <limits.h> |
| |
| #include "libcamera/internal/v4l2_videodevice.h" |
| |
| #include "v4l2_videodevice_test.h" |
| |
| /* These come from the vivid driver. */ |
| #define VIVID_CID_CUSTOM_BASE (V4L2_CID_USER_BASE | 0xf000) |
| #define VIVID_CID_INTEGER64 (VIVID_CID_CUSTOM_BASE + 3) |
| #define VIVID_CID_U8_4D_ARRAY (VIVID_CID_CUSTOM_BASE + 10) |
| |
| /* Helper for VIVID_CID_U8_4D_ARRAY control array size: not from kernel. */ |
| #define VIVID_CID_U8_ARRAY_SIZE (2 * 3 * 4 * 5) |
| |
| using namespace std; |
| using namespace libcamera; |
| |
| class V4L2ControlTest : public V4L2VideoDeviceTest |
| { |
| public: |
| V4L2ControlTest() |
| : V4L2VideoDeviceTest("vivid", "vivid-000-vid-cap") |
| { |
| } |
| |
| protected: |
| int run() |
| { |
| const ControlInfoMap &infoMap = capture_->controls(); |
| |
| /* Test control enumeration. */ |
| if (infoMap.empty()) { |
| cerr << "Failed to enumerate controls" << endl; |
| return TestFail; |
| } |
| |
| if (infoMap.find(V4L2_CID_BRIGHTNESS) == infoMap.end() || |
| infoMap.find(V4L2_CID_CONTRAST) == infoMap.end() || |
| infoMap.find(V4L2_CID_SATURATION) == infoMap.end() || |
| infoMap.find(VIVID_CID_INTEGER64) == infoMap.end() || |
| infoMap.find(VIVID_CID_U8_4D_ARRAY) == infoMap.end()) { |
| cerr << "Missing controls" << endl; |
| return TestFail; |
| } |
| |
| const ControlInfo &brightness = infoMap.find(V4L2_CID_BRIGHTNESS)->second; |
| const ControlInfo &contrast = infoMap.find(V4L2_CID_CONTRAST)->second; |
| const ControlInfo &saturation = infoMap.find(V4L2_CID_SATURATION)->second; |
| const ControlInfo &int64 = infoMap.find(VIVID_CID_INTEGER64)->second; |
| const ControlInfo &u8 = infoMap.find(VIVID_CID_U8_4D_ARRAY)->second; |
| |
| /* Test getting controls. */ |
| ControlList ctrls = capture_->getControls({ V4L2_CID_BRIGHTNESS, |
| V4L2_CID_CONTRAST, |
| V4L2_CID_SATURATION, |
| VIVID_CID_INTEGER64, |
| VIVID_CID_U8_4D_ARRAY }); |
| if (ctrls.empty()) { |
| cerr << "Failed to get controls" << endl; |
| return TestFail; |
| } |
| |
| if (ctrls.infoMap() != &infoMap) { |
| cerr << "Incorrect infoMap for retrieved 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; |
| } |
| |
| /* |
| * The VIVID_CID_INTEGER64 control can take any value, just test |
| * that its value can be retrieved and has the right type. |
| */ |
| ctrls.get(VIVID_CID_INTEGER64).get<int64_t>(); |
| |
| uint8_t u8Min = u8.min().get<uint8_t>(); |
| uint8_t u8Max = u8.max().get<uint8_t>(); |
| |
| Span<const uint8_t> u8Span = ctrls.get(VIVID_CID_U8_4D_ARRAY).get<Span<const uint8_t>>(); |
| bool valid = std::all_of(u8Span.begin(), u8Span.end(), |
| [&](uint8_t v) { return v >= u8Min && v <= u8Max; }); |
| if (!valid) { |
| cerr << "Incorrect value for retrieved array control" |
| << 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()); |
| ctrls.set(VIVID_CID_INTEGER64, int64.min()); |
| |
| std::array<uint8_t, VIVID_CID_U8_ARRAY_SIZE> u8Values; |
| std::fill(u8Values.begin(), u8Values.end(), u8.min().get<uint8_t>()); |
| ctrls.set(VIVID_CID_U8_4D_ARRAY, Span<const uint8_t>(u8Values)); |
| |
| int 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) |