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/*
* Copyright (C) 2017 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_TAG "android.hardware.vibrator@1.2-service.bonito"
#include <android/hardware/vibrator/1.2/IVibrator.h>
#include <hidl/HidlSupport.h>
#include <hidl/HidlTransportSupport.h>
#include <utils/Errors.h>
#include <utils/StrongPointer.h>
#include "Vibrator.h"
using android::hardware::configureRpcThreadpool;
using android::hardware::joinRpcThreadpool;
using android::hardware::vibrator::V1_2::IVibrator;
using android::hardware::vibrator::V1_2::implementation::Vibrator;
using namespace android;
// Refer to Documentation/ABI/testing/sysfs-class-led-driver-drv2624
// kernel documentation on the detail usages for ABIs below
static constexpr char ACTIVATE_PATH[] = "/sys/class/leds/vibrator/activate";
static constexpr char DURATION_PATH[] = "/sys/class/leds/vibrator/duration";
static constexpr char STATE_PATH[] = "/sys/class/leds/vibrator/state";
static constexpr char RTP_INPUT_PATH[] = "/sys/class/leds/vibrator/device/rtp_input";
static constexpr char MODE_PATH[] = "/sys/class/leds/vibrator/device/mode";
static constexpr char SEQUENCER_PATH[] = "/sys/class/leds/vibrator/device/set_sequencer";
static constexpr char SCALE_PATH[] = "/sys/class/leds/vibrator/device/scale";
static constexpr char CTRL_LOOP_PATH[] = "/sys/class/leds/vibrator/device/ctrl_loop";
static constexpr char LP_TRIGGER_PATH[] = "/sys/class/leds/vibrator/device/lp_trigger_effect";
// File path to the calibration file
static constexpr char CALIBRATION_FILEPATH[] = "/persist/haptics/drv2624.cal";
// Kernel ABIs for updating the calibration data
static constexpr char AUTOCAL_CONFIG[] = "autocal";
static constexpr char AUTOCAL_FILEPATH[] = "/sys/class/leds/vibrator/device/autocal";
static std::string trim(const std::string& str,
const std::string& whitespace = " \t") {
const auto str_begin = str.find_first_not_of(whitespace);
if (str_begin == std::string::npos) {
return "";
}
const auto str_end = str.find_last_not_of(whitespace);
const auto str_range = str_end - str_begin + 1;
return str.substr(str_begin, str_range);
}
static bool loadCalibrationData() {
std::map<std::string, std::string> config_data;
std::ofstream autocal{AUTOCAL_FILEPATH};
if (!autocal) {
int error = errno;
ALOGE("Failed to open %s (%d): %s", AUTOCAL_FILEPATH, error,
strerror(error));
return false;
}
std::ifstream cal_data{CALIBRATION_FILEPATH};
if (!cal_data) {
int error = errno;
ALOGE("Failed to open %s (%d): %s", CALIBRATION_FILEPATH, error,
strerror(error));
return false;
}
std::string line;
while (std::getline(cal_data, line)) {
if (line.empty() || line[0] == '#') {
continue;
}
std::istringstream is_line(line);
std::string key;
if (std::getline(is_line, key, ':')) {
std::string value;
if (std::getline(is_line, value)) {
config_data[trim(key)] = trim(value);
}
}
}
if(config_data.find(AUTOCAL_CONFIG) != config_data.end()) {
autocal << config_data[AUTOCAL_CONFIG] << std::endl;
}
return true;
}
status_t registerVibratorService() {
// ostreams below are required
std::ofstream activate{ACTIVATE_PATH};
if (!activate) {
int error = errno;
ALOGE("Failed to open %s (%d): %s", ACTIVATE_PATH, error, strerror(error));
return -error;
}
std::ofstream duration{DURATION_PATH};
if (!duration) {
int error = errno;
ALOGE("Failed to open %s (%d): %s", DURATION_PATH, error, strerror(error));
return -error;
}
std::ofstream state{STATE_PATH};
if (!state) {
int error = errno;
ALOGE("Failed to open %s (%d): %s", STATE_PATH, error, strerror(error));
return -error;
}
state << 1 << std::endl;
if (!state) {
int error = errno;
ALOGE("Failed to set state (%d): %s", errno, strerror(errno));
return -error;
}
// ostreams below are optional
std::ofstream rtpinput{RTP_INPUT_PATH};
if (!rtpinput) {
int error = errno;
ALOGW("Failed to open %s (%d): %s", RTP_INPUT_PATH, error, strerror(error));
}
std::ofstream mode{MODE_PATH};
if (!mode) {
int error = errno;
ALOGW("Failed to open %s (%d): %s", MODE_PATH, error, strerror(error));
}
std::ofstream sequencer{SEQUENCER_PATH};
if (!sequencer) {
int error = errno;
ALOGW("Failed to open %s (%d): %s", SEQUENCER_PATH, error, strerror(error));
}
std::ofstream scale{SCALE_PATH};
if (!scale) {
int error = errno;
ALOGW("Failed to open %s (%d): %s", SCALE_PATH, error, strerror(error));
}
std::ofstream ctrlloop{CTRL_LOOP_PATH};
if (!ctrlloop) {
int error = errno;
ALOGW("Failed to open %s (%d): %s", CTRL_LOOP_PATH, error, strerror(error));
}
std::ofstream lptrigger{LP_TRIGGER_PATH};
if (!lptrigger) {
int error = errno;
ALOGW("Failed to open %s (%d): %s", LP_TRIGGER_PATH, error, strerror(error));
}
if (!loadCalibrationData()) {
ALOGW("Failed load calibration data");
}
sp<IVibrator> vibrator = new Vibrator(std::move(activate), std::move(duration),
std::move(state), std::move(rtpinput), std::move(mode),
std::move(sequencer), std::move(scale), std::move(ctrlloop), std::move(lptrigger));
return vibrator->registerAsService();
}
int main() {
configureRpcThreadpool(1, true);
status_t status = registerVibratorService();
if (status != OK) {
return status;
}
joinRpcThreadpool();
}
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