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184 lines
6.3 KiB
184 lines
6.3 KiB
/*
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**
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** Copyright 2015, 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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#define LOG_TAG "BpRadioService"
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//#define LOG_NDEBUG 0
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#include <utils/Log.h>
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#include <utils/Errors.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <binder/IMemory.h>
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#include <binder/Parcel.h>
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#include <binder/IPCThreadState.h>
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#include <binder/IServiceManager.h>
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#include <radio/IRadioService.h>
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#include <radio/IRadio.h>
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#include <radio/IRadioClient.h>
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namespace android {
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enum {
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LIST_MODULES = IBinder::FIRST_CALL_TRANSACTION,
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ATTACH,
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};
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#define MAX_ITEMS_PER_LIST 1024
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class BpRadioService: public BpInterface<IRadioService>
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{
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public:
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explicit BpRadioService(const sp<IBinder>& impl)
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: BpInterface<IRadioService>(impl)
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{
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}
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virtual status_t listModules(struct radio_properties *properties,
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uint32_t *numModules)
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{
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if (numModules == NULL || (*numModules != 0 && properties == NULL)) {
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return BAD_VALUE;
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}
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Parcel data, reply;
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data.writeInterfaceToken(IRadioService::getInterfaceDescriptor());
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uint32_t numModulesReq = (properties == NULL) ? 0 : *numModules;
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data.writeInt32(numModulesReq);
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status_t status = remote()->transact(LIST_MODULES, data, &reply);
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if (status == NO_ERROR) {
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status = (status_t)reply.readInt32();
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*numModules = (uint32_t)reply.readInt32();
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}
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ALOGV("listModules() status %d got *numModules %d", status, *numModules);
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if (status == NO_ERROR) {
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if (numModulesReq > *numModules) {
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numModulesReq = *numModules;
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}
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if (numModulesReq > 0) {
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reply.read(properties, numModulesReq * sizeof(struct radio_properties));
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}
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}
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return status;
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}
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virtual status_t attach(radio_handle_t handle,
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const sp<IRadioClient>& client,
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const struct radio_band_config *config,
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bool withAudio,
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sp<IRadio>& radio)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IRadioService::getInterfaceDescriptor());
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data.writeInt32(handle);
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data.writeStrongBinder(IInterface::asBinder(client));
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ALOGV("attach() config %p withAudio %d region %d type %d",
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config == NULL ? 0 : config, withAudio,
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config == NULL ? 0 : config->region,
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config == NULL ? 0 : config->band.type);
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if (config == NULL) {
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data.writeInt32(0);
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} else {
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data.writeInt32(1);
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data.write(config, sizeof(struct radio_band_config));
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}
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data.writeInt32(withAudio ? 1 : 0);
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status_t status = remote()->transact(ATTACH, data, &reply);
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if (status != NO_ERROR) {
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return status;
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}
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status = reply.readInt32();
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if (reply.readInt32() != 0) {
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radio = interface_cast<IRadio>(reply.readStrongBinder());
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}
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return status;
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}
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};
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IMPLEMENT_META_INTERFACE(RadioService, "android.hardware.IRadioService");
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// ----------------------------------------------------------------------
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status_t BnRadioService::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case LIST_MODULES: {
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CHECK_INTERFACE(IRadioService, data, reply);
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uint32_t numModulesReq = data.readInt32();
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if (numModulesReq > MAX_ITEMS_PER_LIST) {
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numModulesReq = MAX_ITEMS_PER_LIST;
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}
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uint32_t numModules = numModulesReq;
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struct radio_properties *properties =
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(struct radio_properties *)calloc(numModulesReq,
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sizeof(struct radio_properties));
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if (properties == NULL) {
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reply->writeInt32(NO_MEMORY);
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reply->writeInt32(0);
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return NO_ERROR;
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}
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status_t status = listModules(properties, &numModules);
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reply->writeInt32(status);
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reply->writeInt32(numModules);
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ALOGV("LIST_MODULES status %d got numModules %d", status, numModules);
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if (status == NO_ERROR) {
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if (numModulesReq > numModules) {
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numModulesReq = numModules;
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}
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reply->write(properties,
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numModulesReq * sizeof(struct radio_properties));
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}
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free(properties);
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return NO_ERROR;
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} break;
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case ATTACH: {
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CHECK_INTERFACE(IRadioService, data, reply);
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radio_handle_t handle = data.readInt32();
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sp<IRadioClient> client =
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interface_cast<IRadioClient>(data.readStrongBinder());
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struct radio_band_config config;
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struct radio_band_config *configPtr = NULL;
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if (data.readInt32() != 0) {
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data.read(&config, sizeof(struct radio_band_config));
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configPtr = &config;
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}
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bool withAudio = data.readInt32() != 0;
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ALOGV("ATTACH configPtr %p withAudio %d", configPtr, withAudio);
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sp<IRadio> radio;
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status_t status = attach(handle, client, configPtr, withAudio, radio);
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reply->writeInt32(status);
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if (radio != 0) {
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reply->writeInt32(1);
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reply->writeStrongBinder(IInterface::asBinder(radio));
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} else {
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reply->writeInt32(0);
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}
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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