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/*
**
** Copyright 2014, 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 "BpSoundTriggerHwService"
//#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 <soundtrigger/ISoundTriggerHwService.h>
#include <soundtrigger/ISoundTrigger.h>
#include <soundtrigger/ISoundTriggerClient.h>
namespace android {
enum {
LIST_MODULES = IBinder::FIRST_CALL_TRANSACTION,
ATTACH,
SET_CAPTURE_STATE,
};
#define MAX_ITEMS_PER_LIST 1024
class BpSoundTriggerHwService: public BpInterface<ISoundTriggerHwService>
{
public:
BpSoundTriggerHwService(const sp<IBinder>& impl)
: BpInterface<ISoundTriggerHwService>(impl)
{
}
virtual status_t listModules(struct sound_trigger_module_descriptor *modules,
uint32_t *numModules)
{
if (numModules == NULL || (*numModules != 0 && modules == NULL)) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(ISoundTriggerHwService::getInterfaceDescriptor());
unsigned int numModulesReq = (modules == 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(modules, numModulesReq * sizeof(struct sound_trigger_module_descriptor));
}
}
return status;
}
virtual status_t attach(const sound_trigger_module_handle_t handle,
const sp<ISoundTriggerClient>& client,
sp<ISoundTrigger>& module)
{
Parcel data, reply;
data.writeInterfaceToken(ISoundTriggerHwService::getInterfaceDescriptor());
data.write(&handle, sizeof(sound_trigger_module_handle_t));
data.writeStrongBinder(IInterface::asBinder(client));
status_t status = remote()->transact(ATTACH, data, &reply);
if (status != NO_ERROR) {
return status;
}
status = reply.readInt32();
if (reply.readInt32() != 0) {
module = interface_cast<ISoundTrigger>(reply.readStrongBinder());
}
return status;
}
virtual status_t setCaptureState(bool active)
{
Parcel data, reply;
data.writeInterfaceToken(ISoundTriggerHwService::getInterfaceDescriptor());
data.writeInt32(active);
status_t status = remote()->transact(SET_CAPTURE_STATE, data, &reply);
if (status == NO_ERROR) {
status = reply.readInt32();
}
return status;
}
};
IMPLEMENT_META_INTERFACE(SoundTriggerHwService, "android.hardware.ISoundTriggerHwService");
// ----------------------------------------------------------------------
status_t BnSoundTriggerHwService::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case LIST_MODULES: {
CHECK_INTERFACE(ISoundTriggerHwService, data, reply);
unsigned int numModulesReq = data.readInt32();
if (numModulesReq > MAX_ITEMS_PER_LIST) {
numModulesReq = MAX_ITEMS_PER_LIST;
}
unsigned int numModules = numModulesReq;
struct sound_trigger_module_descriptor *modules =
(struct sound_trigger_module_descriptor *)calloc(numModulesReq,
sizeof(struct sound_trigger_module_descriptor));
if (modules == NULL) {
reply->writeInt32(NO_MEMORY);
reply->writeInt32(0);
return NO_ERROR;
}
status_t status = listModules(modules, &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(modules,
numModulesReq * sizeof(struct sound_trigger_module_descriptor));
}
free(modules);
return NO_ERROR;
}
case ATTACH: {
CHECK_INTERFACE(ISoundTriggerHwService, data, reply);
sound_trigger_module_handle_t handle;
data.read(&handle, sizeof(sound_trigger_module_handle_t));
sp<ISoundTriggerClient> client =
interface_cast<ISoundTriggerClient>(data.readStrongBinder());
sp<ISoundTrigger> module;
status_t status = attach(handle, client, module);
reply->writeInt32(status);
if (module != 0) {
reply->writeInt32(1);
reply->writeStrongBinder(IInterface::asBinder(module));
} else {
reply->writeInt32(0);
}
return NO_ERROR;
} break;
case SET_CAPTURE_STATE: {
CHECK_INTERFACE(ISoundTriggerHwService, data, reply);
reply->writeInt32(setCaptureState((bool)data.readInt32()));
return NO_ERROR;
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
// ----------------------------------------------------------------------------
}; // namespace android
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