159 lines
3.8 KiB
C
159 lines
3.8 KiB
C
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* this implements a GPS hardware library for the Android emulator.
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* the following code should be built as a shared library that will be
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* placed into /system/lib/hw/gps.goldfish.so
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*
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* it will be loaded by the code in hardware/libhardware/hardware.c
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* which is itself called from android_location_GpsLocationProvider.cpp
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*/
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#include <errno.h>
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#include <pthread.h>
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#include <fcntl.h>
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#include <sys/epoll.h>
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#include <math.h>
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#include <time.h>
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#include <stdlib.h>
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#include <string.h>
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#define LOG_TAG "gps_dummy"
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#include <log/log.h>
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//#include <cutils/sockets.h>
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#include <hardware/gps.h>
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#define GPS_DEBUG 0
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#if GPS_DEBUG
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# define D(...) ALOGD(__VA_ARGS__)
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#else
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# define D(...) ((void)0)
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#endif
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static int
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dummy_gps_init(GpsCallbacks* callbacks)
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{
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return 0;
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}
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static void
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dummy_gps_cleanup(void)
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{
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}
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static int
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dummy_gps_start()
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{
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return 0;
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}
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static int
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dummy_gps_stop()
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{
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return 0;
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}
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static int
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dummy_gps_inject_time(GpsUtcTime __unused time,
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int64_t __unused timeReference,
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int __unused uncertainty)
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{
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return 0;
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}
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static int
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dummy_gps_inject_location(double __unused latitude,
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double __unused longitude,
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float __unused accuracy)
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{
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return 0;
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}
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static void
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dummy_gps_delete_aiding_data(GpsAidingData __unused flags)
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{
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}
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static int dummy_gps_set_position_mode(GpsPositionMode __unused mode,
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GpsPositionRecurrence __unused recurrence,
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uint32_t __unused min_interval,
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uint32_t __unused preferred_accuracy,
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uint32_t __unused preferred_time)
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{
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// FIXME - support fix_frequency
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return 0;
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}
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static const void*
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dummy_gps_get_extension(const char* __unused name)
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{
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// no extensions supported
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return NULL;
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}
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static const GpsInterface dummyGpsInterface = {
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sizeof(GpsInterface),
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dummy_gps_init,
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dummy_gps_start,
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dummy_gps_stop,
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dummy_gps_cleanup,
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dummy_gps_inject_time,
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dummy_gps_inject_location,
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dummy_gps_delete_aiding_data,
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dummy_gps_set_position_mode,
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dummy_gps_get_extension,
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};
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const GpsInterface* gps__get_gps_interface(struct gps_device_t* __unused dev)
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{
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return &dummyGpsInterface;
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}
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static int open_gps(const struct hw_module_t* module,
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char const* __unused name,
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struct hw_device_t** device)
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{
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struct gps_device_t *dev = (struct gps_device_t *)malloc(sizeof(struct gps_device_t));
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memset(dev, 0, sizeof(*dev));
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dev->common.tag = HARDWARE_DEVICE_TAG;
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dev->common.version = 0;
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dev->common.module = (struct hw_module_t*)module;
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dev->get_gps_interface = gps__get_gps_interface;
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*device = (struct hw_device_t*)dev;
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return 0;
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}
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static struct hw_module_methods_t gps_module_methods = {
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.open = open_gps
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};
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struct hw_module_t HAL_MODULE_INFO_SYM = {
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.tag = HARDWARE_MODULE_TAG,
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.version_major = 1,
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.version_minor = 0,
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.id = GPS_HARDWARE_MODULE_ID,
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.name = "Dummy GPS Module",
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.author = "The Android Open Source Project",
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.methods = &gps_module_methods,
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};
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