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