| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <gmock/gmock.h> |
| #include <gtest/gtest.h> |
| |
| #include "DisplayHardware/DisplayIdentification.h" |
| |
| namespace android { |
| namespace { |
| |
| const unsigned char kInternalEdid[] = |
| "\x00\xff\xff\xff\xff\xff\xff\x00\x4c\xa3\x42\x31\x00\x00\x00\x00" |
| "\x00\x15\x01\x03\x80\x1a\x10\x78\x0a\xd3\xe5\x95\x5c\x60\x90\x27" |
| "\x19\x50\x54\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01" |
| "\x01\x01\x01\x01\x01\x01\x9e\x1b\x00\xa0\x50\x20\x12\x30\x10\x30" |
| "\x13\x00\x05\xa3\x10\x00\x00\x19\x00\x00\x00\x0f\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x23\x87\x02\x64\x00\x00\x00\x00\xfe\x00\x53" |
| "\x41\x4d\x53\x55\x4e\x47\x0a\x20\x20\x20\x20\x20\x00\x00\x00\xfe" |
| "\x00\x31\x32\x31\x41\x54\x31\x31\x2d\x38\x30\x31\x0a\x20\x00\x45"; |
| |
| const unsigned char kExternalEdid[] = |
| "\x00\xff\xff\xff\xff\xff\xff\x00\x22\xf0\x6c\x28\x01\x01\x01\x01" |
| "\x02\x16\x01\x04\xb5\x40\x28\x78\xe2\x8d\x85\xad\x4f\x35\xb1\x25" |
| "\x0e\x50\x54\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01" |
| "\x01\x01\x01\x01\x01\x01\xe2\x68\x00\xa0\xa0\x40\x2e\x60\x30\x20" |
| "\x36\x00\x81\x90\x21\x00\x00\x1a\xbc\x1b\x00\xa0\x50\x20\x17\x30" |
| "\x30\x20\x36\x00\x81\x90\x21\x00\x00\x1a\x00\x00\x00\xfc\x00\x48" |
| "\x50\x20\x5a\x52\x33\x30\x77\x0a\x20\x20\x20\x20\x00\x00\x00\xff" |
| "\x00\x43\x4e\x34\x32\x30\x32\x31\x33\x37\x51\x0a\x20\x20\x00\x71"; |
| |
| // Extended EDID with timing extension. |
| const unsigned char kExternalEedid[] = |
| "\x00\xff\xff\xff\xff\xff\xff\x00\x4c\x2d\xfe\x08\x00\x00\x00\x00" |
| "\x29\x15\x01\x03\x80\x10\x09\x78\x0a\xee\x91\xa3\x54\x4c\x99\x26" |
| "\x0f\x50\x54\xbd\xef\x80\x71\x4f\x81\xc0\x81\x00\x81\x80\x95\x00" |
| "\xa9\xc0\xb3\x00\x01\x01\x02\x3a\x80\x18\x71\x38\x2d\x40\x58\x2c" |
| "\x45\x00\xa0\x5a\x00\x00\x00\x1e\x66\x21\x56\xaa\x51\x00\x1e\x30" |
| "\x46\x8f\x33\x00\xa0\x5a\x00\x00\x00\x1e\x00\x00\x00\xfd\x00\x18" |
| "\x4b\x0f\x51\x17\x00\x0a\x20\x20\x20\x20\x20\x20\x00\x00\x00\xfc" |
| "\x00\x53\x41\x4d\x53\x55\x4e\x47\x0a\x20\x20\x20\x20\x20\x01\x1d" |
| "\x02\x03\x1f\xf1\x47\x90\x04\x05\x03\x20\x22\x07\x23\x09\x07\x07" |
| "\x83\x01\x00\x00\xe2\x00\x0f\x67\x03\x0c\x00\x20\x00\xb8\x2d\x01" |
| "\x1d\x80\x18\x71\x1c\x16\x20\x58\x2c\x25\x00\xa0\x5a\x00\x00\x00" |
| "\x9e\x01\x1d\x00\x72\x51\xd0\x1e\x20\x6e\x28\x55\x00\xa0\x5a\x00" |
| "\x00\x00\x1e\x8c\x0a\xd0\x8a\x20\xe0\x2d\x10\x10\x3e\x96\x00\xa0" |
| "\x5a\x00\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc6"; |
| |
| template <size_t N> |
| DisplayIdentificationData asDisplayIdentificationData(const unsigned char (&bytes)[N]) { |
| return DisplayIdentificationData(bytes, bytes + N - 1); |
| } |
| |
| } // namespace |
| |
| const DisplayIdentificationData& getInternalEdid() { |
| static const DisplayIdentificationData data = asDisplayIdentificationData(kInternalEdid); |
| return data; |
| } |
| |
| const DisplayIdentificationData& getExternalEdid() { |
| static const DisplayIdentificationData data = asDisplayIdentificationData(kExternalEdid); |
| return data; |
| } |
| |
| const DisplayIdentificationData& getExternalEedid() { |
| static const DisplayIdentificationData data = asDisplayIdentificationData(kExternalEedid); |
| return data; |
| } |
| |
| TEST(DisplayIdentificationTest, isEdid) { |
| EXPECT_FALSE(isEdid({})); |
| |
| EXPECT_TRUE(isEdid(getInternalEdid())); |
| EXPECT_TRUE(isEdid(getExternalEdid())); |
| EXPECT_TRUE(isEdid(getExternalEedid())); |
| } |
| |
| TEST(DisplayIdentificationTest, parseEdid) { |
| auto edid = parseEdid(getInternalEdid()); |
| ASSERT_TRUE(edid); |
| EXPECT_EQ(0x4ca3u, edid->manufacturerId); |
| EXPECT_STREQ("SEC", edid->pnpId.data()); |
| // ASCII text should be used as fallback if display name and serial number are missing. |
| EXPECT_EQ("121AT11-801", edid->displayName); |
| |
| edid = parseEdid(getExternalEdid()); |
| ASSERT_TRUE(edid); |
| EXPECT_EQ(0x22f0u, edid->manufacturerId); |
| EXPECT_STREQ("HWP", edid->pnpId.data()); |
| EXPECT_EQ("HP ZR30w", edid->displayName); |
| |
| edid = parseEdid(getExternalEedid()); |
| ASSERT_TRUE(edid); |
| EXPECT_EQ(0x4c2du, edid->manufacturerId); |
| EXPECT_STREQ("SAM", edid->pnpId.data()); |
| EXPECT_EQ("SAMSUNG", edid->displayName); |
| } |
| |
| TEST(DisplayIdentificationTest, parseInvalidEdid) { |
| EXPECT_FALSE(isEdid({})); |
| EXPECT_FALSE(parseEdid({})); |
| |
| // Display name must be printable. |
| auto data = getExternalEdid(); |
| data[97] = '\x1b'; |
| auto edid = parseEdid(data); |
| ASSERT_TRUE(edid); |
| // Serial number should be used as fallback if display name is invalid. |
| EXPECT_EQ("CN4202137Q", edid->displayName); |
| |
| // Parsing should succeed even if EDID is truncated. |
| data.pop_back(); |
| edid = parseEdid(data); |
| ASSERT_TRUE(edid); |
| EXPECT_EQ("CN4202137Q", edid->displayName); |
| } |
| |
| TEST(DisplayIdentificationTest, getPnpId) { |
| EXPECT_FALSE(getPnpId(0)); |
| EXPECT_FALSE(getPnpId(static_cast<uint16_t>(-1))); |
| |
| EXPECT_STREQ("SEC", getPnpId(0x4ca3u).value_or(PnpId{}).data()); |
| EXPECT_STREQ("HWP", getPnpId(0x22f0u).value_or(PnpId{}).data()); |
| EXPECT_STREQ("SAM", getPnpId(0x4c2du).value_or(PnpId{}).data()); |
| } |
| |
| TEST(DisplayIdentificationTest, parseDisplayIdentificationData) { |
| const auto primaryInfo = parseDisplayIdentificationData(0, getInternalEdid()); |
| ASSERT_TRUE(primaryInfo); |
| |
| const auto secondaryInfo = parseDisplayIdentificationData(1, getExternalEdid()); |
| ASSERT_TRUE(secondaryInfo); |
| |
| const auto tertiaryInfo = parseDisplayIdentificationData(2, getExternalEedid()); |
| ASSERT_TRUE(tertiaryInfo); |
| |
| // Display IDs should be unique. |
| EXPECT_NE(primaryInfo->id, secondaryInfo->id); |
| EXPECT_NE(primaryInfo->id, tertiaryInfo->id); |
| EXPECT_NE(secondaryInfo->id, tertiaryInfo->id); |
| } |
| |
| TEST(DisplayIdentificationTest, getFallbackDisplayId) { |
| // Manufacturer ID should be invalid. |
| ASSERT_FALSE(getPnpId(getFallbackDisplayId(0))); |
| ASSERT_FALSE(getPnpId(getFallbackDisplayId(0xffu))); |
| } |
| |
| TEST(DisplayIdentificationTest, getVirtualDisplayId) { |
| // Manufacturer ID should be invalid. |
| ASSERT_FALSE(getPnpId(getVirtualDisplayId(0))); |
| ASSERT_FALSE(getPnpId(getVirtualDisplayId(0xffff'ffffu))); |
| } |
| |
| } // namespace android |