/*
* Copyright (C) 2020 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.
*/
#define ATRACE_TAG (ATRACE_TAG_POWER | ATRACE_TAG_HAL)
#define LOG_TAG "android.hardware.power-service.pixel-libperfmgr"
#include "Power.h"
#include <mutex>
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/properties.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include <utils/Log.h>
#include <utils/Trace.h>
namespace aidl {
namespace google {
namespace hardware {
namespace power {
namespace impl {
namespace pixel {
constexpr char kPowerHalStateProp[] = "vendor.powerhal.state";
constexpr char kPowerHalAudioProp[] = "vendor.powerhal.audio";
constexpr char kPowerHalRenderingProp[] = "vendor.powerhal.rendering";
Power::Power(std::shared_ptr<HintManager> hm)
: mHintManager(hm),
mInteractionHandler(nullptr),
mVRModeOn(false),
mSustainedPerfModeOn(false) {
mInteractionHandler = std::make_unique<InteractionHandler>(mHintManager);
mInteractionHandler->Init();
std::string state = ::android::base::GetProperty(kPowerHalStateProp, "");
if (state == "SUSTAINED_PERFORMANCE") {
ALOGI("Initialize with SUSTAINED_PERFORMANCE on");
mHintManager->DoHint("SUSTAINED_PERFORMANCE");
mSustainedPerfModeOn = true;
} else if (state == "VR") {
ALOGI("Initialize with VR on");
mHintManager->DoHint(state);
mVRModeOn = true;
} else if (state == "VR_SUSTAINED_PERFORMANCE") {
ALOGI("Initialize with SUSTAINED_PERFORMANCE and VR on");
mHintManager->DoHint("VR_SUSTAINED_PERFORMANCE");
mSustainedPerfModeOn = true;
mVRModeOn = true;
} else {
ALOGI("Initialize PowerHAL");
}
state = ::android::base::GetProperty(kPowerHalAudioProp, "");
if (state == "AUDIO_STREAMING_LOW_LATENCY") {
ALOGI("Initialize with AUDIO_LOW_LATENCY on");
mHintManager->DoHint(state);
}
state = ::android::base::GetProperty(kPowerHalRenderingProp, "");
if (state == "EXPENSIVE_RENDERING") {
ALOGI("Initialize with EXPENSIVE_RENDERING on");
mHintManager->DoHint("EXPENSIVE_RENDERING");
}
// Now start to take powerhint
ALOGI("PowerHAL ready to process hints");
}
static int sysfs_write(const char *path, const char *s)
{
char buf[80];
int len;
int ret = 0;
int fd = open(path, O_WRONLY);
if (fd < 0) {
strerror_r(errno, buf, sizeof(buf));
ALOGE("Error opening %s: %s\n", path, buf);
return -1 ;
}
len = write(fd, s, strlen(s));
if (len < 0) {
strerror_r(errno, buf, sizeof(buf));
ALOGE("Error writing to %s: %s\n", path, buf);
ret = -1;
}
close(fd);
return ret;
}
ndk::ScopedAStatus Power::setMode(Mode type, bool enabled) {
LOG(DEBUG) << "Power setMode: " << toString(type) << " to: " << enabled;
ATRACE_INT(toString(type).c_str(), enabled);
switch (type) {
case Mode::DOUBLE_TAP_TO_WAKE:
{
sysfs_write("/sys/class/touch/tp_dev/gesture_on", enabled ? "1" : "0");
}
break;
case Mode::LOW_POWER:
break;
case Mode::SUSTAINED_PERFORMANCE:
if (enabled && !mSustainedPerfModeOn) {
if (!mVRModeOn) { // Sustained mode only.
mHintManager->DoHint("SUSTAINED_PERFORMANCE");
} else { // Sustained + VR mode.
mHintManager->EndHint("VR");
mHintManager->DoHint("VR_SUSTAINED_PERFORMANCE");
}
mSustainedPerfModeOn = true;
} else if (!enabled && mSustainedPerfModeOn) {
mHintManager->EndHint("VR_SUSTAINED_PERFORMANCE");
mHintManager->EndHint("SUSTAINED_PERFORMANCE");
if (mVRModeOn) { // Switch back to VR Mode.
mHintManager->DoHint("VR");
}
mSustainedPerfModeOn = false;
}
break;
case Mode::VR:
if (enabled && !mVRModeOn) {
if (!mSustainedPerfModeOn) { // VR mode only.
mHintManager->DoHint("VR");
} else { // Sustained + VR mode.
mHintManager->EndHint("SUSTAINED_PERFORMANCE");
mHintManager->DoHint("VR_SUSTAINED_PERFORMANCE");
}
mVRModeOn = true;
} else if (!enabled && mVRModeOn) {
mHintManager->EndHint("VR_SUSTAINED_PERFORMANCE");
mHintManager->EndHint("VR");
if (mSustainedPerfModeOn) { // Switch back to sustained Mode.
mHintManager->DoHint("SUSTAINED_PERFORMANCE");
}
mVRModeOn = false;
}
break;
case Mode::LAUNCH:
if (mVRModeOn || mSustainedPerfModeOn) {
break;
}
[[fallthrough]];
case Mode::FIXED_PERFORMANCE:
[[fallthrough]];
case Mode::EXPENSIVE_RENDERING:
[[fallthrough]];
case Mode::INTERACTIVE:
[[fallthrough]];
case Mode::DEVICE_IDLE:
[[fallthrough]];
case Mode::DISPLAY_INACTIVE:
[[fallthrough]];
case Mode::AUDIO_STREAMING_LOW_LATENCY:
[[fallthrough]];
case Mode::CAMERA_STREAMING_SECURE:
[[fallthrough]];
case Mode::CAMERA_STREAMING_LOW:
[[fallthrough]];
case Mode::CAMERA_STREAMING_MID:
[[fallthrough]];
case Mode::CAMERA_STREAMING_HIGH:
[[fallthrough]];
default:
if (enabled) {
mHintManager->DoHint(toString(type));
} else {
mHintManager->EndHint(toString(type));
}
break;
}
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Power::isModeSupported(Mode type, bool *_aidl_return) {
bool supported = mHintManager->IsHintSupported(toString(type));
// LOW_POWER and DOUBLE_TAP_TO_WAKE handled insides PowerHAL specifically
if (type == Mode::LOW_POWER || type == Mode::DOUBLE_TAP_TO_WAKE) {
supported = true;
}
LOG(INFO) << "Power mode " << toString(type) << " isModeSupported: " << supported;
*_aidl_return = supported;
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Power::setBoost(Boost type, int32_t durationMs) {
LOG(DEBUG) << "Power setBoost: " << toString(type) << " duration: " << durationMs;
ATRACE_INT(toString(type).c_str(), durationMs);
switch (type) {
case Boost::INTERACTION:
if (mVRModeOn || mSustainedPerfModeOn) {
break;
}
mInteractionHandler->Acquire(durationMs);
break;
case Boost::DISPLAY_UPDATE_IMMINENT:
[[fallthrough]];
case Boost::ML_ACC:
[[fallthrough]];
case Boost::AUDIO_LAUNCH:
[[fallthrough]];
case Boost::CAMERA_LAUNCH:
[[fallthrough]];
case Boost::CAMERA_SHOT:
[[fallthrough]];
default:
if (mVRModeOn || mSustainedPerfModeOn) {
break;
}
if (durationMs > 0) {
mHintManager->DoHint(toString(type), std::chrono::milliseconds(durationMs));
} else if (durationMs == 0) {
mHintManager->DoHint(toString(type));
} else {
mHintManager->EndHint(toString(type));
}
break;
}
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Power::isBoostSupported(Boost type, bool *_aidl_return) {
bool supported = mHintManager->IsHintSupported(toString(type));
LOG(INFO) << "Power boost " << toString(type) << " isBoostSupported: " << supported;
*_aidl_return = supported;
return ndk::ScopedAStatus::ok();
}
constexpr const char *boolToString(bool b) {
return b ? "true" : "false";
}
binder_status_t Power::dump(int fd, const char **, uint32_t) {
std::string buf(::android::base::StringPrintf(
"HintManager Running: %s\n"
"VRMode: %s\n"
"SustainedPerformanceMode: %s\n",
boolToString(mHintManager->IsRunning()), boolToString(mVRModeOn),
boolToString(mSustainedPerfModeOn)));
// Dump nodes through libperfmgr
mHintManager->DumpToFd(fd);
if (!::android::base::WriteStringToFd(buf, fd)) {
PLOG(ERROR) << "Failed to dump state to fd";
}
fsync(fd);
return STATUS_OK;
}
} // namespace pixel
} // namespace impl
} // namespace power
} // namespace hardware
} // namespace google
} // namespace aidl