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/*
* Copyright (C) 2010 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.
*/
/* this implements a GPS hardware library for the Android emulator.
* the following code should be built as a shared library that will be
* placed into /system/lib/hw/gps.goldfish.so
*
* it will be loaded by the code in hardware/libhardware/hardware.c
* which is itself called from android_location_GpsLocationProvider.cpp
*/
#include <errno.h>
#include <pthread.h>
#include <fcntl.h>
#include <sys/epoll.h>
#include <math.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>
#define LOG_TAG "gps_dummy"
#include <log/log.h>
//#include <cutils/sockets.h>
#include <hardware/gps.h>
#define GPS_DEBUG 0
#if GPS_DEBUG
# define D(...) ALOGD(__VA_ARGS__)
#else
# define D(...) ((void)0)
#endif
static int
dummy_gps_init(GpsCallbacks* callbacks)
{
return 0;
}
static void
dummy_gps_cleanup(void)
{
}
static int
dummy_gps_start()
{
return 0;
}
static int
dummy_gps_stop()
{
return 0;
}
static int
dummy_gps_inject_time(GpsUtcTime __unused time,
int64_t __unused timeReference,
int __unused uncertainty)
{
return 0;
}
static int
dummy_gps_inject_location(double __unused latitude,
double __unused longitude,
float __unused accuracy)
{
return 0;
}
static void
dummy_gps_delete_aiding_data(GpsAidingData __unused flags)
{
}
static int dummy_gps_set_position_mode(GpsPositionMode __unused mode,
GpsPositionRecurrence __unused recurrence,
uint32_t __unused min_interval,
uint32_t __unused preferred_accuracy,
uint32_t __unused preferred_time)
{
// FIXME - support fix_frequency
return 0;
}
static const void*
dummy_gps_get_extension(const char* __unused name)
{
// no extensions supported
return NULL;
}
static const GpsInterface dummyGpsInterface = {
sizeof(GpsInterface),
dummy_gps_init,
dummy_gps_start,
dummy_gps_stop,
dummy_gps_cleanup,
dummy_gps_inject_time,
dummy_gps_inject_location,
dummy_gps_delete_aiding_data,
dummy_gps_set_position_mode,
dummy_gps_get_extension,
};
const GpsInterface* gps__get_gps_interface(struct gps_device_t* __unused dev)
{
return &dummyGpsInterface;
}
static int open_gps(const struct hw_module_t* module,
char const* __unused name,
struct hw_device_t** device)
{
struct gps_device_t *dev = (struct gps_device_t *)malloc(sizeof(struct gps_device_t));
memset(dev, 0, sizeof(*dev));
dev->common.tag = HARDWARE_DEVICE_TAG;
dev->common.version = 0;
dev->common.module = (struct hw_module_t*)module;
dev->get_gps_interface = gps__get_gps_interface;
*device = (struct hw_device_t*)dev;
return 0;
}
static struct hw_module_methods_t gps_module_methods = {
.open = open_gps
};
struct hw_module_t HAL_MODULE_INFO_SYM = {
.tag = HARDWARE_MODULE_TAG,
.version_major = 1,
.version_minor = 0,
.id = GPS_HARDWARE_MODULE_ID,
.name = "Dummy GPS Module",
.author = "The Android Open Source Project",
.methods = &gps_module_methods,
};
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