1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "power_hidl_hal_test"
18 #include <android-base/logging.h>
19
20 #include <cutils/properties.h>
21
22 #include <android-base/unique_fd.h>
23 #include <android/hardware/power/1.0/IPower.h>
24
25 #include <VtsHalHidlTargetTestBase.h>
26
27 #include <fcntl.h>
28 #include <algorithm>
29
30 using ::android::hardware::power::V1_0::IPower;
31 using ::android::hardware::power::V1_0::Feature;
32 using ::android::hardware::power::V1_0::PowerHint;
33 using ::android::hardware::power::V1_0::PowerStatePlatformSleepState;
34 using ::android::hardware::power::V1_0::Status;
35 using ::android::hardware::hidl_vec;
36 using ::android::hardware::Return;
37 using ::android::sp;
38 using ::android::base::unique_fd;
39
40 using std::vector;
41
42 #define CPU_GOVERNOR_PATH \
43 "/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"
44 #define AVAILABLE_GOVERNORS_PATH \
45 "/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors"
46
47 class PowerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
48 public:
SetUp()49 virtual void SetUp() override {
50 power = ::testing::VtsHalHidlTargetTestBase::getService<IPower>();
51 ASSERT_NE(power, nullptr);
52 }
53
TearDown()54 virtual void TearDown() override {}
55
56 sp<IPower> power;
57 };
58
59 // Sanity check Power::setInteractive.
TEST_F(PowerHidlTest,SetInteractive)60 TEST_F(PowerHidlTest, SetInteractive) {
61 Return<void> ret;
62
63 ret = power->setInteractive(true);
64 ASSERT_TRUE(ret.isOk());
65
66 ret = power->setInteractive(false);
67 ASSERT_TRUE(ret.isOk());
68 }
69
70 // Test Power::setInteractive and Power::powerHint(Launch)
71 // with each available CPU governor, if available
TEST_F(PowerHidlTest,TryDifferentGovernors)72 TEST_F(PowerHidlTest, TryDifferentGovernors) {
73 Return<void> ret;
74
75 unique_fd fd1(open(CPU_GOVERNOR_PATH, O_RDWR));
76 unique_fd fd2(open(AVAILABLE_GOVERNORS_PATH, O_RDONLY));
77 if (fd1 < 0 || fd2 < 0) {
78 // Files don't exist, so skip the rest of the test case
79 SUCCEED();
80 return;
81 }
82
83 char old_governor[80];
84 ASSERT_LE(0, read(fd1, old_governor, 80));
85
86 char governors[1024];
87 unsigned len = read(fd2, governors, 1024);
88 ASSERT_LE(0u, len);
89 governors[len] = '\0';
90
91 char *saveptr;
92 char *name = strtok_r(governors, " \n", &saveptr);
93 while (name) {
94 ASSERT_LE(0, write(fd1, name, strlen(name)));
95 ret = power->setInteractive(true);
96 ASSERT_TRUE(ret.isOk());
97
98 ret = power->setInteractive(false);
99 ASSERT_TRUE(ret.isOk());
100
101 ret = power->setInteractive(false);
102 ASSERT_TRUE(ret.isOk());
103
104 power->powerHint(PowerHint::LAUNCH, 1);
105 power->powerHint(PowerHint::LAUNCH, 0);
106
107 name = strtok_r(NULL, " \n", &saveptr);
108 }
109
110 ASSERT_LE(0, write(fd1, old_governor, strlen(old_governor)));
111 }
112
113 // Sanity check Power::powerHint on good and bad inputs.
TEST_F(PowerHidlTest,PowerHint)114 TEST_F(PowerHidlTest, PowerHint) {
115 PowerHint badHint = static_cast<PowerHint>(0xA);
116 auto hints = {PowerHint::VSYNC, PowerHint::INTERACTION,
117 PowerHint::VIDEO_ENCODE, PowerHint::VIDEO_DECODE,
118 PowerHint::LOW_POWER, PowerHint::SUSTAINED_PERFORMANCE,
119 PowerHint::VR_MODE, PowerHint::LAUNCH,
120 badHint};
121 Return<void> ret;
122 for (auto hint : hints) {
123 ret = power->powerHint(hint, 30000);
124 ASSERT_TRUE(ret.isOk());
125
126 ret = power->powerHint(hint, 0);
127 ASSERT_TRUE(ret.isOk());
128 }
129
130 // Turning these hints on in different orders triggers different code paths,
131 // so iterate over possible orderings.
132 std::vector<PowerHint> hints2 = {PowerHint::LAUNCH, PowerHint::VR_MODE,
133 PowerHint::SUSTAINED_PERFORMANCE,
134 PowerHint::INTERACTION};
135 auto compareHints = [](PowerHint l, PowerHint r) {
136 return static_cast<uint32_t>(l) < static_cast<uint32_t>(r);
137 };
138 std::sort(hints2.begin(), hints2.end(), compareHints);
139 do {
140 for (auto iter = hints2.begin(); iter != hints2.end(); iter++) {
141 ret = power->powerHint(*iter, 0);
142 ASSERT_TRUE(ret.isOk());
143 }
144 for (auto iter = hints2.begin(); iter != hints2.end(); iter++) {
145 ret = power->powerHint(*iter, 30000);
146 ASSERT_TRUE(ret.isOk());
147 }
148 } while (std::next_permutation(hints2.begin(), hints2.end(), compareHints));
149 }
150
151 // Sanity check Power::setFeature() on good and bad inputs.
TEST_F(PowerHidlTest,SetFeature)152 TEST_F(PowerHidlTest, SetFeature) {
153 Return<void> ret;
154 ret = power->setFeature(Feature::POWER_FEATURE_DOUBLE_TAP_TO_WAKE, true);
155 ASSERT_TRUE(ret.isOk());
156 ret = power->setFeature(Feature::POWER_FEATURE_DOUBLE_TAP_TO_WAKE, false);
157 ASSERT_TRUE(ret.isOk());
158
159 Feature badFeature = static_cast<Feature>(0x2);
160 ret = power->setFeature(badFeature, true);
161 ASSERT_TRUE(ret.isOk());
162 ret = power->setFeature(badFeature, false);
163 ASSERT_TRUE(ret.isOk());
164 }
165
166 // Sanity check Power::getPlatformLowPowerStats().
TEST_F(PowerHidlTest,GetPlatformLowPowerStats)167 TEST_F(PowerHidlTest, GetPlatformLowPowerStats) {
168 hidl_vec<PowerStatePlatformSleepState> vec;
169 Status s;
170 auto cb = [&vec, &s](hidl_vec<PowerStatePlatformSleepState> states,
171 Status status) {
172 vec = states;
173 s = status;
174 };
175 Return<void> ret = power->getPlatformLowPowerStats(cb);
176 ASSERT_TRUE(ret.isOk());
177 ASSERT_TRUE(s == Status::SUCCESS || s == Status::FILESYSTEM_ERROR);
178 }
179
main(int argc,char ** argv)180 int main(int argc, char **argv) {
181 ::testing::InitGoogleTest(&argc, argv);
182 int status = RUN_ALL_TESTS();
183 LOG(INFO) << "Test result = " << status;
184 return status;
185 }
186