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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 "IRadio"
#include <utils/Log.h>
#include <utils/Errors.h>
#include <binder/IMemory.h>
#include <radio/IRadio.h>
#include <radio/IRadioService.h>
#include <radio/IRadioClient.h>
#include <system/radio.h>
#include <system/radio_metadata.h>
namespace android {
enum {
DETACH = IBinder::FIRST_CALL_TRANSACTION,
SET_CONFIGURATION,
GET_CONFIGURATION,
SET_MUTE,
GET_MUTE,
SCAN,
STEP,
TUNE,
CANCEL,
GET_PROGRAM_INFORMATION,
HAS_CONTROL
};
class BpRadio: public BpInterface<IRadio>
{
public:
BpRadio(const sp<IBinder>& impl)
: BpInterface<IRadio>(impl)
{
}
void detach()
{
ALOGV("detach");
Parcel data, reply;
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
remote()->transact(DETACH, data, &reply);
}
virtual status_t setConfiguration(const struct radio_band_config *config)
{
Parcel data, reply;
if (config == NULL) {
return BAD_VALUE;
}
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
data.write(config, sizeof(struct radio_band_config));
status_t status = remote()->transact(SET_CONFIGURATION, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual status_t getConfiguration(struct radio_band_config *config)
{
Parcel data, reply;
if (config == NULL) {
return BAD_VALUE;
}
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
status_t status = remote()->transact(GET_CONFIGURATION, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
if (status == NO_ERROR) {
reply.read(config, sizeof(struct radio_band_config));
}
}
return status;
}
virtual status_t setMute(bool mute)
{
Parcel data, reply;
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
data.writeInt32(mute ? 1 : 0);
status_t status = remote()->transact(SET_MUTE, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual status_t getMute(bool *mute)
{
Parcel data, reply;
if (mute == NULL) {
return BAD_VALUE;
}
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
status_t status = remote()->transact(GET_MUTE, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
if (status == NO_ERROR) {
int muteread = reply.readInt32();
*mute = muteread != 0;
}
}
return status;
}
virtual status_t scan(radio_direction_t direction, bool skipSubChannel)
{
Parcel data, reply;
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
data.writeInt32(direction);
data.writeInt32(skipSubChannel ? 1 : 0);
status_t status = remote()->transact(SCAN, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual status_t step(radio_direction_t direction, bool skipSubChannel)
{
Parcel data, reply;
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
data.writeInt32(direction);
data.writeInt32(skipSubChannel ? 1 : 0);
status_t status = remote()->transact(STEP, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual status_t tune(unsigned int channel, unsigned int subChannel)
{
Parcel data, reply;
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
data.writeInt32(channel);
data.writeInt32(subChannel);
status_t status = remote()->transact(TUNE, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual status_t cancel()
{
Parcel data, reply;
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
status_t status = remote()->transact(CANCEL, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual status_t getProgramInformation(struct radio_program_info *info)
{
Parcel data, reply;
if (info == NULL) {
return BAD_VALUE;
}
radio_metadata_t *metadata = info->metadata;
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
status_t status = remote()->transact(GET_PROGRAM_INFORMATION, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
if (status == NO_ERROR) {
reply.read(info, sizeof(struct radio_program_info));
info->metadata = metadata;
if (metadata == NULL) {
return status;
}
size_t size = (size_t)reply.readInt32();
if (size == 0) {
return status;
}
metadata =
(radio_metadata_t *)calloc(size / sizeof(unsigned int), sizeof(unsigned int));
if (metadata == NULL) {
return NO_MEMORY;
}
reply.read(metadata, size);
status = radio_metadata_add_metadata(&info->metadata, metadata);
free(metadata);
}
}
return status;
}
virtual status_t hasControl(bool *hasControl)
{
Parcel data, reply;
if (hasControl == NULL) {
return BAD_VALUE;
}
data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
status_t status = remote()->transact(HAS_CONTROL, data, &reply);
if (status == NO_ERROR) {
status = (status_t)reply.readInt32();
if (status == NO_ERROR) {
*hasControl = reply.readInt32() != 0;
}
}
return status;
}
};
IMPLEMENT_META_INTERFACE(Radio, "android.hardware.IRadio");
// ----------------------------------------------------------------------
status_t BnRadio::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case DETACH: {
ALOGV("DETACH");
CHECK_INTERFACE(IRadio, data, reply);
detach();
return NO_ERROR;
} break;
case SET_CONFIGURATION: {
CHECK_INTERFACE(IRadio, data, reply);
struct radio_band_config config;
data.read(&config, sizeof(struct radio_band_config));
status_t status = setConfiguration(&config);
reply->writeInt32(status);
return NO_ERROR;
}
case GET_CONFIGURATION: {
CHECK_INTERFACE(IRadio, data, reply);
struct radio_band_config config;
status_t status = getConfiguration(&config);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->write(&config, sizeof(struct radio_band_config));
}
return NO_ERROR;
}
case SET_MUTE: {
CHECK_INTERFACE(IRadio, data, reply);
bool mute = data.readInt32() != 0;
status_t status = setMute(mute);
reply->writeInt32(status);
return NO_ERROR;
}
case GET_MUTE: {
CHECK_INTERFACE(IRadio, data, reply);
bool mute;
status_t status = getMute(&mute);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->writeInt32(mute ? 1 : 0);
}
return NO_ERROR;
}
case SCAN: {
CHECK_INTERFACE(IRadio, data, reply);
radio_direction_t direction = (radio_direction_t)data.readInt32();
bool skipSubChannel = data.readInt32() == 1;
status_t status = scan(direction, skipSubChannel);
reply->writeInt32(status);
return NO_ERROR;
}
case STEP: {
CHECK_INTERFACE(IRadio, data, reply);
radio_direction_t direction = (radio_direction_t)data.readInt32();
bool skipSubChannel = data.readInt32() == 1;
status_t status = step(direction, skipSubChannel);
reply->writeInt32(status);
return NO_ERROR;
}
case TUNE: {
CHECK_INTERFACE(IRadio, data, reply);
unsigned int channel = (unsigned int)data.readInt32();
unsigned int subChannel = (unsigned int)data.readInt32();
status_t status = tune(channel, subChannel);
reply->writeInt32(status);
return NO_ERROR;
}
case CANCEL: {
CHECK_INTERFACE(IRadio, data, reply);
status_t status = cancel();
reply->writeInt32(status);
return NO_ERROR;
}
case GET_PROGRAM_INFORMATION: {
CHECK_INTERFACE(IRadio, data, reply);
struct radio_program_info info;
status_t status = radio_metadata_allocate(&info.metadata, 0, 0);
if (status != NO_ERROR) {
return status;
}
status = getProgramInformation(&info);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->write(&info, sizeof(struct radio_program_info));
int count = radio_metadata_get_count(info.metadata);
if (count > 0) {
size_t size = radio_metadata_get_size(info.metadata);
reply->writeInt32(size);
reply->write(info.metadata, size);
} else {
reply->writeInt32(0);
}
}
radio_metadata_deallocate(info.metadata);
return NO_ERROR;
}
case HAS_CONTROL: {
CHECK_INTERFACE(IRadio, data, reply);
bool control;
status_t status = hasControl(&control);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->writeInt32(control ? 1 : 0);
}
return NO_ERROR;
}
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
// ----------------------------------------------------------------------------
}; // namespace android
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