145 lines
4.4 KiB
C
145 lines
4.4 KiB
C
/**
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* Copyright (C) 2020 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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#include <stdbool.h>
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#include <stdint.h>
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#include <string.h>
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#include "chpp/common/gnss.h"
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#include "chpp/log.h"
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#include "chpp/macros.h"
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#include "chpp/platform/platform_gnss.h"
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#include "chre/pal/gnss.h"
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static const struct chrePalSystemApi *gSystemApi;
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static const struct chrePalGnssCallbacks *gCallbacks;
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static bool gnssPalOpen(const struct chrePalSystemApi *systemApi,
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const struct chrePalGnssCallbacks *callbacks) {
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gSystemApi = systemApi;
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gCallbacks = callbacks;
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return true;
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}
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static void gnssPalClose(void) {}
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static uint32_t gnssPalGetCapabilities(void) {
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return CHRE_GNSS_CAPABILITIES_LOCATION | CHRE_GNSS_CAPABILITIES_MEASUREMENTS |
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CHRE_GNSS_CAPABILITIES_GNSS_ENGINE_BASED_PASSIVE_LISTENER;
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}
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static bool gnssPalControlLocationSession(bool enable, uint32_t minIntervalMs,
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uint32_t minTimeToNextFixMs) {
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// TODO
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UNUSED_VAR(enable);
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UNUSED_VAR(minIntervalMs);
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UNUSED_VAR(minTimeToNextFixMs);
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return true; // If successful
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}
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void gnssPalSendLocationEvent() {
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struct chreGnssLocationEvent *event =
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(struct chreGnssLocationEvent *)(chppMalloc(
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sizeof(struct chreGnssLocationEvent)));
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if (event == NULL) {
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CHPP_LOG_OOM();
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} else {
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memset(event, 0, sizeof(struct chreGnssLocationEvent));
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event->timestamp = gSystemApi->getCurrentTime();
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gCallbacks->locationEventCallback(event);
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}
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}
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void gnssPalSendMeasurementEvent() {
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struct chreGnssDataEvent *event = (struct chreGnssDataEvent *)(chppMalloc(
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sizeof(struct chreGnssDataEvent)));
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struct chreGnssMeasurement *measurement =
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(struct chreGnssMeasurement *)(chppMalloc(
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sizeof(struct chreGnssMeasurement)));
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if (event == NULL) {
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CHPP_LOG_OOM();
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} else if (measurement == NULL) {
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CHPP_LOG_OOM();
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chppFree(event);
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} else {
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memset(event, 0, sizeof(struct chreGnssDataEvent));
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memset(measurement, 0, sizeof(struct chreGnssMeasurement));
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measurement->c_n0_dbhz = 63.0f;
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event->measurements = measurement;
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event->measurement_count = 1;
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event->clock.time_ns = (int64_t)(gSystemApi->getCurrentTime());
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gCallbacks->measurementEventCallback(event);
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}
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}
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static void gnssPalReleaseLocationEvent(struct chreGnssLocationEvent *event) {
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gSystemApi->memoryFree(event);
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}
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static bool gnssPalControlMeasurementSession(bool enable,
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uint32_t minIntervalMs) {
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// TODO
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UNUSED_VAR(enable);
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UNUSED_VAR(minIntervalMs);
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return true; // If successful
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}
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static void gnssPalReleaseMeasurementDataEvent(
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struct chreGnssDataEvent *event) {
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gSystemApi->memoryFree(CHPP_CONST_CAST_POINTER(event->measurements));
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gSystemApi->memoryFree(event);
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}
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static bool gnssPalConfigurePassiveLocationListener(bool enable) {
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// TODO
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UNUSED_VAR(enable);
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return true; // If successful
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}
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#ifdef CHPP_SERVICE_ENABLED_GNSS
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const struct chrePalGnssApi *chrePalGnssGetApi(uint32_t requestedApiVersion) {
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static const struct chrePalGnssApi api = {
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.moduleVersion = CHPP_PAL_GNSS_API_VERSION,
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.open = gnssPalOpen,
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.close = gnssPalClose,
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.getCapabilities = gnssPalGetCapabilities,
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.controlLocationSession = gnssPalControlLocationSession,
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.releaseLocationEvent = gnssPalReleaseLocationEvent,
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.controlMeasurementSession = gnssPalControlMeasurementSession,
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.releaseMeasurementDataEvent = gnssPalReleaseMeasurementDataEvent,
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.configurePassiveLocationListener =
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gnssPalConfigurePassiveLocationListener,
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};
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CHPP_STATIC_ASSERT(
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CHRE_PAL_GNSS_API_CURRENT_VERSION == CHPP_PAL_GNSS_API_VERSION,
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"A newer CHRE PAL API version is available. Please update.");
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if (!CHRE_PAL_VERSIONS_ARE_COMPATIBLE(api.moduleVersion,
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requestedApiVersion)) {
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return NULL;
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} else {
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return &api;
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}
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}
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#endif
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