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hardware_samsung/hidl/power-libperfmgr/display-helper.cpp

74 lines
1.9 KiB

/*
* 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.
*/
#define LOG_NIDEBUG 0
#define LOG_TAG "android.hardware.power@1.3-service.pixel-libperfmgr"
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <cutils/sockets.h>
#include <log/log.h>
#include "display-helper.h"
#define DAEMON_SOCKET "pps"
static int daemon_socket = -1;
static int connectPPDaemon() {
// Setup socket connection, if not already done.
if (daemon_socket < 0)
daemon_socket =
socket_local_client(DAEMON_SOCKET, ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM);
if (daemon_socket < 0) {
ALOGE("Connecting to socket failed: %s", strerror(errno));
return -1;
}
return 0;
}
static int ppdComm(const char *cmd) {
int ret = -1;
ret = connectPPDaemon();
if (ret < 0)
return ret;
ret = write(daemon_socket, cmd, strlen(cmd));
if (ret < 0) {
ALOGE("Failed to send data over socket, %s", strerror(errno));
return ret;
}
return 0;
}
void set_display_lpm(int enable) {
ALOGI("set_display_lpm state: %d", enable);
if (enable) {
ppdComm("foss:on");
} else {
ppdComm("foss:off");
}
}