| /* |
| ** |
| ** 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, |
| }; |
| |
| 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(client->asBinder()); |
| remote()->transact(ATTACH, data, &reply); |
| status_t status = reply.readInt32(); |
| if (reply.readInt32() != 0) { |
| module = interface_cast<ISoundTrigger>(reply.readStrongBinder()); |
| } |
| 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(); |
| unsigned int numModules = numModulesReq; |
| struct sound_trigger_module_descriptor *modules = |
| (struct sound_trigger_module_descriptor *)calloc(numModulesReq, |
| sizeof(struct sound_trigger_module_descriptor)); |
| 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(module->asBinder()); |
| } else { |
| reply->writeInt32(0); |
| } |
| return NO_ERROR; |
| } break; |
| default: |
| return BBinder::onTransact(code, data, reply, flags); |
| } |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| }; // namespace android |