| /* |
| ** |
| ** Copyright 2010, 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_NDEBUG 0 |
| #define LOG_TAG "IEffect" |
| #include <utils/Log.h> |
| #include <stdint.h> |
| #include <sys/types.h> |
| #include <binder/Parcel.h> |
| #include <media/IEffect.h> |
| |
| namespace android { |
| |
| enum { |
| ENABLE = IBinder::FIRST_CALL_TRANSACTION, |
| DISABLE, |
| COMMAND, |
| DISCONNECT, |
| GET_CBLK |
| }; |
| |
| class BpEffect: public BpInterface<IEffect> |
| { |
| public: |
| BpEffect(const sp<IBinder>& impl) |
| : BpInterface<IEffect>(impl) |
| { |
| } |
| |
| status_t enable() |
| { |
| ALOGV("enable"); |
| Parcel data, reply; |
| data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); |
| remote()->transact(ENABLE, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t disable() |
| { |
| ALOGV("disable"); |
| Parcel data, reply; |
| data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); |
| remote()->transact(DISABLE, data, &reply); |
| return reply.readInt32(); |
| } |
| |
| status_t command(uint32_t cmdCode, |
| uint32_t cmdSize, |
| void *pCmdData, |
| uint32_t *pReplySize, |
| void *pReplyData) |
| { |
| ALOGV("command"); |
| Parcel data, reply; |
| data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); |
| data.writeInt32(cmdCode); |
| int size = cmdSize; |
| if (pCmdData == NULL) { |
| size = 0; |
| } |
| data.writeInt32(size); |
| if (size) { |
| data.write(pCmdData, size); |
| } |
| if (pReplySize == NULL) { |
| size = 0; |
| } else { |
| size = *pReplySize; |
| } |
| data.writeInt32(size); |
| |
| status_t status = remote()->transact(COMMAND, data, &reply); |
| if (status == NO_ERROR) { |
| status = reply.readInt32(); |
| } |
| if (status != NO_ERROR) { |
| if (pReplySize != NULL) |
| *pReplySize = 0; |
| return status; |
| } |
| |
| size = reply.readInt32(); |
| if (size != 0 && pReplyData != NULL && pReplySize != NULL) { |
| reply.read(pReplyData, size); |
| *pReplySize = size; |
| } |
| return status; |
| } |
| |
| void disconnect() |
| { |
| ALOGV("disconnect"); |
| Parcel data, reply; |
| data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); |
| remote()->transact(DISCONNECT, data, &reply); |
| return; |
| } |
| |
| virtual sp<IMemory> getCblk() const |
| { |
| Parcel data, reply; |
| sp<IMemory> cblk; |
| data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); |
| status_t status = remote()->transact(GET_CBLK, data, &reply); |
| if (status == NO_ERROR) { |
| cblk = interface_cast<IMemory>(reply.readStrongBinder()); |
| if (cblk != 0 && cblk->pointer() == NULL) { |
| cblk.clear(); |
| } |
| } |
| return cblk; |
| } |
| }; |
| |
| IMPLEMENT_META_INTERFACE(Effect, "android.media.IEffect"); |
| |
| // ---------------------------------------------------------------------- |
| |
| status_t BnEffect::onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) |
| { |
| switch (code) { |
| case ENABLE: { |
| ALOGV("ENABLE"); |
| CHECK_INTERFACE(IEffect, data, reply); |
| reply->writeInt32(enable()); |
| return NO_ERROR; |
| } break; |
| |
| case DISABLE: { |
| ALOGV("DISABLE"); |
| CHECK_INTERFACE(IEffect, data, reply); |
| reply->writeInt32(disable()); |
| return NO_ERROR; |
| } break; |
| |
| case COMMAND: { |
| ALOGV("COMMAND"); |
| CHECK_INTERFACE(IEffect, data, reply); |
| uint32_t cmdCode = data.readInt32(); |
| uint32_t cmdSize = data.readInt32(); |
| char *cmd = NULL; |
| if (cmdSize) { |
| cmd = (char *)calloc(cmdSize, 1); |
| if (cmd == NULL) { |
| reply->writeInt32(NO_MEMORY); |
| return NO_ERROR; |
| } |
| data.read(cmd, cmdSize); |
| } |
| uint32_t replySize = data.readInt32(); |
| uint32_t replySz = replySize; |
| char *resp = NULL; |
| if (replySize) { |
| resp = (char *)calloc(replySize, 1); |
| if (resp == NULL) { |
| free(cmd); |
| reply->writeInt32(NO_MEMORY); |
| return NO_ERROR; |
| } |
| } |
| status_t status = command(cmdCode, cmdSize, cmd, &replySz, resp); |
| reply->writeInt32(status); |
| if (status == NO_ERROR) { |
| if (replySz < replySize) { |
| replySize = replySz; |
| } |
| reply->writeInt32(replySize); |
| if (replySize) { |
| reply->write(resp, replySize); |
| } |
| } |
| if (cmd) { |
| free(cmd); |
| } |
| if (resp) { |
| free(resp); |
| } |
| return NO_ERROR; |
| } break; |
| |
| case DISCONNECT: { |
| ALOGV("DISCONNECT"); |
| CHECK_INTERFACE(IEffect, data, reply); |
| disconnect(); |
| return NO_ERROR; |
| } break; |
| |
| case GET_CBLK: { |
| CHECK_INTERFACE(IEffect, data, reply); |
| reply->writeStrongBinder(IInterface::asBinder(getCblk())); |
| return NO_ERROR; |
| } break; |
| |
| default: |
| return BBinder::onTransact(code, data, reply, flags); |
| } |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| } // namespace android |