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