void InputDevice::reset(nsecs_t when) {size_t numMappers = mMappers.size();for (size_t i = 0; i < numMappers; i++) {InputMapper* mapper = mMappers[i];mapper->reset(when);}mContext->updateGlobalMetaState();notifyReset(when);
}

void InputReader::clearCTPData(nsecs_t when, int32_t deviceId) {ssize_t deviceIndex = mDevices.indexOfKey(deviceId);if (deviceIndex < 0) {ALOGW("Discarding event for unknown deviceId %d.", deviceId);return;}InputDevice* device = mDevices.valueAt(deviceIndex);if (device->isIgnored()) {//ALOGD("Discarding event for ignored deviceId %d.", deviceId);return;}device->reset(when);
}

InputReader::InputReader(const sp<EventHubInterface>& eventHub,const sp<InputReaderPolicyInterface>& policy,const sp<InputListenerInterface>& listener) :mContext(this), mEventHub(eventHub), mPolicy(policy),mGlobalMetaState(0), mGeneration(1),mDisableVirtualKeysTimeout(LLONG_MIN), mNextTimeout(LLONG_MAX),mConfigurationChangesToRefresh(0) {mQueuedListener = new QueuedInputListener(listener);{ // acquire lockAutoMutex _l(mLock);sp<IBinder> sendBinder = new ByInputreaderService(this);defaultServiceManager()->addService(String16("my.inputreader"), sendBinder);refreshConfigurationLocked(0);updateGlobalMetaStateLocked();} // release lock
}

class ByInputreaderService : public BBinder {
public:InputReader *parent;int mCTPDeviceId;nsecs_t mWhen;ByInputreaderService(InputReader *p) : parent(p){mCTPDeviceId = 1;getCtpFd();}~ByInputreaderService(){}int scan_input_device(int fd){char name[80];name[sizeof(name) - 1] = '\0';if(ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name) < 1) {ALOGI("could not get device name for %s\n", strerror(errno));name[0] = '\0';}ALOGI("getCtpFd device name is %s\n", name);if(strcmp("cyttsp5_mt", name) == 0){ALOGI("getCtpFd cyttsp5_mt !!!\n");return 0;}return -1;}int getCtpFd(void){int fd = 0;int device_type = 0;char devname[50];char *filename;DIR *dir;struct dirent *de;dir = opendir("/dev/input");if(dir == NULL)return -1;strcpy(devname, "/dev/input");filename = devname + strlen(devname);*filename++ = '/';while((de = readdir(dir))) {if(de->d_name[0] == '.' && (de->d_name[1] == '\0' ||(de->d_name[1] == '.' && de->d_name[2] == '\0')))continue;strcpy(filename, de->d_name);fd = open(devname, O_RDWR);if (fd < 0) {ALOGI("[getCtpFd] open device failed! path: %s\n",devname);continue;}device_type = scan_input_device(fd);if(device_type != 0){mCTPDeviceId ++;close(fd);ALOGI("[getCtpFd] scan device failed! path: %s -- %d\n",devname, device_type);continue;}else{ALOGI("[getCtpFd] scan device success! path: %s -- %d\n",devname, device_type);break;}}closedir(dir);close(fd);return fd;    }status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags){ALOGI("ByInputreaderService %d \n", code);if(CLEARINPUTDATA == code){mWhen = systemTime(SYSTEM_TIME_MONOTONIC);parent->clearCTPData(mWhen, mCTPDeviceId);          }return NO_ERROR;}};