android_device_xiaomi_sm835.../power/Power.cpp
2021-08-29 12:22:31 +03:00

138 lines
3.5 KiB
C++

/*
* Copyright (C) 2020 The LineageOS 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 LOG_TAG "android.hardware.power@1.3-service.xiaomi_sm8350"
#include <linux/input.h>
#include "Power.h"
constexpr static char const* inputDevicesDirectory = "/dev/input/";
constexpr static int wakeupModeOn = 5;
constexpr static int wakeupModeOff = 4;
namespace android {
namespace hardware {
namespace power {
namespace V1_3 {
namespace implementation {
// Methods from V1_0::IPower follow.
Return<void> Power::setInteractive(bool) {
return Void();
}
Return<void> Power::powerHint(PowerHint_1_0, int32_t) {
return Void();
}
bool isSupportedInputName(char* name) {
return strcmp(name, "fts_ts") == 0
|| strcmp(name, "NVTCapacitiveTouchScreen") == 0;
}
int openInputFd() {
DIR *dir = opendir(inputDevicesDirectory);
if (dir == NULL) {
return -1;
}
struct dirent *ent;
int fd;
int rc;
while ((ent = readdir(dir)) != NULL) {
if (ent->d_type != DT_CHR)
continue;
char absolute_path[PATH_MAX] = {0};
char name[80] = {0};
strcpy(absolute_path, inputDevicesDirectory);
strcat(absolute_path, ent->d_name);
fd = open(absolute_path, O_RDWR);
if (fd < 0)
continue;
rc = ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name);
if (rc > 0 && isSupportedInputName(name))
break;
close(fd);
fd = -1;
}
closedir(dir);
return fd;
}
Return<void> Power::setFeature(Feature feature, bool activate) {
switch (feature) {
case Feature::POWER_FEATURE_DOUBLE_TAP_TO_WAKE: {
int fd = openInputFd();
if (fd < 0) {
ALOGW("No touchscreen input devices that support DT2W were found");
return Void();
}
struct input_event ev;
ev.type = EV_SYN;
ev.code = SYN_CONFIG;
ev.value = activate ? wakeupModeOn : wakeupModeOff;
write(fd, &ev, sizeof(ev));
close(fd);
} break;
default:
break;
}
return Void();
}
Return<void> Power::getPlatformLowPowerStats(getPlatformLowPowerStats_cb _hidl_cb) {
ALOGI("getPlatformLowPowerStats not supported, do nothing");
_hidl_cb({}, Status::SUCCESS);
return Void();
}
// Methods from V1_1::IPower follow.
Return<void> Power::getSubsystemLowPowerStats(getSubsystemLowPowerStats_cb _hidl_cb) {
ALOGI("getSubsystemLowPowerStats not supported, do nothing");
_hidl_cb({}, Status::SUCCESS);
return Void();
}
Return<void> Power::powerHintAsync(PowerHint_1_0, int32_t) {
return Void();
}
// Methods from V1_2::IPower follow.
Return<void> Power::powerHintAsync_1_2(PowerHint_1_2, int32_t) {
return Void();
}
// Methods from V1_3::IPower follow.
Return<void> Power::powerHintAsync_1_3(PowerHint_1_3, int32_t) {
return Void();
}
} // namespace implementation
} // namespace V1_3
} // namespace power
} // namespace hardware
} // namespace android