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/*
* Copyright (C) 2015 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.
*/
#include "sensors_hal.h"
#include <errno.h>
#include <string.h>
#include "example_sensors.h"
SensorContext::SensorContext(const hw_module_t* module) {
memset(&device, 0, sizeof(device));
device.common.tag = HARDWARE_DEVICE_TAG;
device.common.version = SENSORS_DEVICE_API_VERSION_1_0;
device.common.module = const_cast<hw_module_t*>(module);
device.common.close = CloseWrapper;
device.activate = ActivateWrapper;
device.setDelay = SetDelayWrapper;
device.poll = PollEventsWrapper;
device.batch = BatchWrapper;
device.flush = FlushWrapper;
sensors[AvailableSensors::kAccelerometer] = new Accelerometer();
sensors[AvailableSensors::kCustom] = new CustomSensor();
}
SensorContext::~SensorContext() {
for (int i = 0; i < AvailableSensors::kNumSensors; i++) {
if (sensors[i]) delete sensors[i];
}
}
int SensorContext::activate(int handle, int enabled) {
return sensors[handle]->activate(handle, enabled);
}
int SensorContext::setDelay(int handle, int64_t ns) {
return sensors[handle]->setDelay(handle, ns);
}
int SensorContext::pollEvents(sensors_event_t* data, int count) {
return sensors[0]->pollEvents(data, count);
}
int SensorContext::batch(int handle, int flags,
int64_t period_ns, int64_t timeout) {
return sensors[handle]->batch(handle, flags, period_ns, timeout);
}
int SensorContext::flush(int handle) {
return sensors[handle]->flush(handle);
}
// static
int SensorContext::CloseWrapper(hw_device_t* dev) {
SensorContext* sensor_context = reinterpret_cast<SensorContext*>(dev);
if (sensor_context) {
delete sensor_context;
}
return 0;
}
// static
int SensorContext::ActivateWrapper(sensors_poll_device_t* dev,
int handle, int enabled) {
return reinterpret_cast<SensorContext*>(dev)->activate(handle, enabled);
}
// static
int SensorContext::SetDelayWrapper(sensors_poll_device_t* dev,
int handle, int64_t ns) {
return reinterpret_cast<SensorContext*>(dev)->setDelay(handle, ns);
}
// static
int SensorContext::PollEventsWrapper(sensors_poll_device_t* dev,
sensors_event_t* data, int count) {
return reinterpret_cast<SensorContext*>(dev)->pollEvents(data, count);
}
// static
int SensorContext::BatchWrapper(sensors_poll_device_1_t* dev, int handle,
int flags, int64_t period_ns, int64_t timeout) {
return reinterpret_cast<SensorContext*>(dev)->batch(handle, flags, period_ns,
timeout);
}
// static
int SensorContext::FlushWrapper(sensors_poll_device_1_t* dev,
int handle) {
return reinterpret_cast<SensorContext*>(dev)->flush(handle);
}
static int open_sensors(const struct hw_module_t* module,
const char* id, struct hw_device_t** device) {
SensorContext* ctx = new SensorContext(module);
*device = &ctx->device.common;
return 0;
}
static struct hw_module_methods_t sensors_module_methods = {
open: open_sensors,
};
static struct sensor_t kSensorList[] = {
{ name: "Broken Accelerometer",
vendor: "Unknown",
version: 1,
handle: SensorContext::AvailableSensors::kAccelerometer,
type: SENSOR_TYPE_ACCELEROMETER,
maxRange: static_cast<float>(Accelerometer::kMaxRange),
resolution: 100.0f,
power: 0.0f,
minDelay: 10000,
fifoReservedEventCount: 0,
fifoMaxEventCount: 0,
SENSOR_STRING_TYPE_ACCELEROMETER,
requiredPermission: "",
maxDelay: 0,
flags: SENSOR_FLAG_CONTINUOUS_MODE,
reserved: {},
},
{ name: "Custom Hour of Day Sensor",
vendor: "Unknown",
version: 1,
handle: SensorContext::AvailableSensors::kCustom,
type: SENSOR_TYPE_CUSTOM,
maxRange: 24.0f,
resolution: 1.0f,
power: 0.0f,
minDelay: 1,
fifoReservedEventCount: 0,
fifoMaxEventCount: 0,
SENSOR_STRING_TYPE_CUSTOM,
requiredPermission: "",
maxDelay: 0,
flags: SENSOR_FLAG_CONTINUOUS_MODE,
reserved: {},
},
};
static int get_sensors_list(struct sensors_module_t* module,
struct sensor_t const** list) {
if (!list) return 0;
*list = kSensorList;
return sizeof(kSensorList) / sizeof(kSensorList[0]);
}
struct sensors_module_t HAL_MODULE_INFO_SYM = {
common: {
tag: HARDWARE_MODULE_TAG,
version_major: 1,
version_minor: 0,
id: SENSORS_HARDWARE_MODULE_ID,
name: "Example Sensor Module",
author: "Google",
methods: &sensors_module_methods,
dso: NULL,
reserved: {0},
},
get_sensors_list: get_sensors_list,
set_operation_mode: NULL
};
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