diff options
Diffstat (limited to 'services/camera/libcameraservice/CameraService.cpp')
| -rw-r--r-- | services/camera/libcameraservice/CameraService.cpp | 255 |
1 files changed, 199 insertions, 56 deletions
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp index 757a781..34a5b15 100644 --- a/services/camera/libcameraservice/CameraService.cpp +++ b/services/camera/libcameraservice/CameraService.cpp @@ -38,9 +38,11 @@ #include <utils/String16.h> #include "CameraService.h" -#include "CameraClient.h" -#include "Camera2Client.h" -#include "ProCamera2Client.h" +#include "api1/CameraClient.h" +#include "api1/Camera2Client.h" +#include "api_pro/ProCamera2Client.h" +#include "api2/CameraDeviceClient.h" +#include "CameraDeviceFactory.h" namespace android { @@ -126,6 +128,8 @@ void CameraService::onFirstRef() CAMERA_MODULE_API_VERSION_2_1) { mModule->set_callbacks(this); } + + CameraDeviceFactory::registerService(this); } } @@ -164,7 +168,7 @@ void CameraService::onDeviceStatusChanged(int cameraId, Mutex::Autolock al(mServiceLock); /* Find all clients that we need to disconnect */ - sp<Client> client = mClient[cameraId].promote(); + sp<BasicClient> client = mClient[cameraId].promote(); if (client.get() != NULL) { clientsToDisconnect.push_back(client); } @@ -207,7 +211,7 @@ int32_t CameraService::getNumberOfCameras() { status_t CameraService::getCameraInfo(int cameraId, struct CameraInfo* cameraInfo) { if (!mModule) { - return NO_INIT; + return -ENODEV; } if (cameraId < 0 || cameraId >= mNumberOfCameras) { @@ -221,6 +225,49 @@ status_t CameraService::getCameraInfo(int cameraId, return rc; } +status_t CameraService::getCameraCharacteristics(int cameraId, + CameraMetadata* cameraInfo) { + if (!cameraInfo) { + ALOGE("%s: cameraInfo is NULL", __FUNCTION__); + return BAD_VALUE; + } + + if (!mModule) { + ALOGE("%s: camera hardware module doesn't exist", __FUNCTION__); + return -ENODEV; + } + + if (mModule->common.module_api_version < CAMERA_MODULE_API_VERSION_2_0) { + // TODO: Remove this check once HAL1 shim is in place. + ALOGE("%s: Only HAL module version V2 or higher supports static metadata", __FUNCTION__); + return BAD_VALUE; + } + + if (cameraId < 0 || cameraId >= mNumberOfCameras) { + ALOGE("%s: Invalid camera id: %d", __FUNCTION__, cameraId); + return BAD_VALUE; + } + + int facing; + if (getDeviceVersion(cameraId, &facing) == CAMERA_DEVICE_API_VERSION_1_0) { + // TODO: Remove this check once HAL1 shim is in place. + ALOGE("%s: HAL1 doesn't support static metadata yet", __FUNCTION__); + return BAD_VALUE; + } + + if (getDeviceVersion(cameraId, &facing) <= CAMERA_DEVICE_API_VERSION_2_1) { + // Disable HAL2.x support for camera2 API for now. + ALOGW("%s: HAL2.x doesn't support getCameraCharacteristics for now", __FUNCTION__); + return BAD_VALUE; + } + + struct camera_info info; + status_t ret = mModule->get_camera_info(cameraId, &info); + *cameraInfo = info.static_camera_characteristics; + + return ret; +} + int CameraService::getDeviceVersion(int cameraId, int* facing) { struct camera_info info; if (mModule->get_camera_info(cameraId, &info) != OK) { @@ -258,7 +305,7 @@ bool CameraService::isValidCameraId(int cameraId) { return false; } -bool CameraService::validateConnect(int cameraId, +status_t CameraService::validateConnect(int cameraId, /*inout*/ int& clientUid) const { @@ -271,19 +318,19 @@ bool CameraService::validateConnect(int cameraId, if (callingPid != getpid()) { ALOGE("CameraService::connect X (pid %d) rejected (don't trust clientUid)", callingPid); - return false; + return PERMISSION_DENIED; } } if (!mModule) { ALOGE("Camera HAL module not loaded"); - return false; + return -ENODEV; } if (cameraId < 0 || cameraId >= mNumberOfCameras) { ALOGE("CameraService::connect X (pid %d) rejected (invalid cameraId %d).", callingPid, cameraId); - return false; + return -ENODEV; } char value[PROPERTY_VALUE_MAX]; @@ -291,36 +338,36 @@ bool CameraService::validateConnect(int cameraId, if (strcmp(value, "1") == 0) { // Camera is disabled by DevicePolicyManager. ALOGI("Camera is disabled. connect X (pid %d) rejected", callingPid); - return false; + return -EACCES; } ICameraServiceListener::Status currentStatus = getStatus(cameraId); if (currentStatus == ICameraServiceListener::STATUS_NOT_PRESENT) { ALOGI("Camera is not plugged in," " connect X (pid %d) rejected", callingPid); - return false; + return -ENODEV; } else if (currentStatus == ICameraServiceListener::STATUS_ENUMERATING) { ALOGI("Camera is enumerating," " connect X (pid %d) rejected", callingPid); - return false; + return -EBUSY; } // Else don't check for STATUS_NOT_AVAILABLE. // -- It's done implicitly in canConnectUnsafe /w the mBusy array - return true; + return OK; } bool CameraService::canConnectUnsafe(int cameraId, const String16& clientPackageName, const sp<IBinder>& remoteCallback, - sp<Client> &client) { + sp<BasicClient> &client) { String8 clientName8(clientPackageName); int callingPid = getCallingPid(); if (mClient[cameraId] != 0) { client = mClient[cameraId].promote(); if (client != 0) { - if (remoteCallback == client->getRemoteCallback()->asBinder()) { + if (remoteCallback == client->getRemote()) { LOG1("CameraService::connect X (pid %d) (the same client)", callingPid); return true; @@ -354,11 +401,13 @@ bool CameraService::canConnectUnsafe(int cameraId, return true; } -sp<ICamera> CameraService::connect( +status_t CameraService::connect( const sp<ICameraClient>& cameraClient, int cameraId, const String16& clientPackageName, - int clientUid) { + int clientUid, + /*out*/ + sp<ICamera>& device) { String8 clientName8(clientPackageName); int callingPid = getCallingPid(); @@ -366,20 +415,23 @@ sp<ICamera> CameraService::connect( LOG1("CameraService::connect E (pid %d \"%s\", id %d)", callingPid, clientName8.string(), cameraId); - if (!validateConnect(cameraId, /*inout*/clientUid)) { - return NULL; + status_t status = validateConnect(cameraId, /*inout*/clientUid); + if (status != OK) { + return status; } - sp<Client> client; + sp<Client> client; { Mutex::Autolock lock(mServiceLock); + sp<BasicClient> clientTmp; if (!canConnectUnsafe(cameraId, clientPackageName, cameraClient->asBinder(), - /*out*/client)) { - return NULL; + /*out*/clientTmp)) { + return -EBUSY; } else if (client.get() != NULL) { - return client; + device = static_cast<Client*>(clientTmp.get()); + return OK; } int facing = -1; @@ -409,18 +461,18 @@ sp<ICamera> CameraService::connect( break; case -1: ALOGE("Invalid camera id %d", cameraId); - return NULL; + return BAD_VALUE; default: ALOGE("Unknown camera device HAL version: %d", deviceVersion); - return NULL; + return INVALID_OPERATION; } - if (!connectFinishUnsafe(client, client->asBinder())) { + status_t status = connectFinishUnsafe(client, client->getRemote()); + if (status != OK) { // this is probably not recoverable.. maybe the client can try again // OK: we can only get here if we were originally in PRESENT state updateStatus(ICameraServiceListener::STATUS_PRESENT, cameraId); - - return NULL; + return status; } mClient[cameraId] = client; @@ -430,45 +482,49 @@ sp<ICamera> CameraService::connect( // important: release the mutex here so the client can call back // into the service from its destructor (can be at the end of the call) - return client; + device = client; + return OK; } -bool CameraService::connectFinishUnsafe(const sp<BasicClient>& client, - const sp<IBinder>& clientBinder) { - if (client->initialize(mModule) != OK) { - return false; +status_t CameraService::connectFinishUnsafe(const sp<BasicClient>& client, + const sp<IBinder>& remoteCallback) { + status_t status = client->initialize(mModule); + if (status != OK) { + return status; } - clientBinder->linkToDeath(this); + remoteCallback->linkToDeath(this); - return true; + return OK; } -sp<IProCameraUser> CameraService::connect( +status_t CameraService::connectPro( const sp<IProCameraCallbacks>& cameraCb, int cameraId, const String16& clientPackageName, - int clientUid) + int clientUid, + /*out*/ + sp<IProCameraUser>& device) { String8 clientName8(clientPackageName); int callingPid = getCallingPid(); LOG1("CameraService::connectPro E (pid %d \"%s\", id %d)", callingPid, clientName8.string(), cameraId); - - if (!validateConnect(cameraId, /*inout*/clientUid)) { - return NULL; + status_t status = validateConnect(cameraId, /*inout*/clientUid); + if (status != OK) { + return status; } sp<ProClient> client; { Mutex::Autolock lock(mServiceLock); { - sp<Client> client; + sp<BasicClient> client; if (!canConnectUnsafe(cameraId, clientPackageName, cameraCb->asBinder(), /*out*/client)) { - return NULL; + return -EBUSY; } } @@ -479,23 +535,25 @@ sp<IProCameraUser> CameraService::connect( case CAMERA_DEVICE_API_VERSION_1_0: ALOGE("Camera id %d uses HALv1, doesn't support ProCamera", cameraId); - return NULL; + return -EOPNOTSUPP; break; case CAMERA_DEVICE_API_VERSION_2_0: case CAMERA_DEVICE_API_VERSION_2_1: + case CAMERA_DEVICE_API_VERSION_3_0: client = new ProCamera2Client(this, cameraCb, String16(), cameraId, facing, callingPid, USE_CALLING_UID, getpid()); break; case -1: ALOGE("Invalid camera id %d", cameraId); - return NULL; + return BAD_VALUE; default: ALOGE("Unknown camera device HAL version: %d", deviceVersion); - return NULL; + return INVALID_OPERATION; } - if (!connectFinishUnsafe(client, client->asBinder())) { - return NULL; + status_t status = connectFinishUnsafe(client, client->getRemote()); + if (status != OK) { + return status; } mProClientList[cameraId].push(client); @@ -505,10 +563,93 @@ sp<IProCameraUser> CameraService::connect( } // important: release the mutex here so the client can call back // into the service from its destructor (can be at the end of the call) + device = client; + return OK; +} - return client; +status_t CameraService::connectDevice( + const sp<ICameraDeviceCallbacks>& cameraCb, + int cameraId, + const String16& clientPackageName, + int clientUid, + /*out*/ + sp<ICameraDeviceUser>& device) +{ + + String8 clientName8(clientPackageName); + int callingPid = getCallingPid(); + + LOG1("CameraService::connectDevice E (pid %d \"%s\", id %d)", callingPid, + clientName8.string(), cameraId); + + status_t status = validateConnect(cameraId, /*inout*/clientUid); + if (status != OK) { + return status; + } + + sp<CameraDeviceClient> client; + { + Mutex::Autolock lock(mServiceLock); + { + sp<BasicClient> client; + if (!canConnectUnsafe(cameraId, clientPackageName, + cameraCb->asBinder(), + /*out*/client)) { + return -EBUSY; + } + } + + int facing = -1; + int deviceVersion = getDeviceVersion(cameraId, &facing); + + // If there are other non-exclusive users of the camera, + // this will tear them down before we can reuse the camera + if (isValidCameraId(cameraId)) { + // transition from PRESENT -> NOT_AVAILABLE + updateStatus(ICameraServiceListener::STATUS_NOT_AVAILABLE, + cameraId); + } + + switch(deviceVersion) { + case CAMERA_DEVICE_API_VERSION_1_0: + ALOGW("Camera using old HAL version: %d", deviceVersion); + return -EOPNOTSUPP; + // TODO: don't allow 2.0 Only allow 2.1 and higher + case CAMERA_DEVICE_API_VERSION_2_0: + case CAMERA_DEVICE_API_VERSION_2_1: + case CAMERA_DEVICE_API_VERSION_3_0: + client = new CameraDeviceClient(this, cameraCb, String16(), + cameraId, facing, callingPid, USE_CALLING_UID, getpid()); + break; + case -1: + ALOGE("Invalid camera id %d", cameraId); + return BAD_VALUE; + default: + ALOGE("Unknown camera device HAL version: %d", deviceVersion); + return INVALID_OPERATION; + } + + status_t status = connectFinishUnsafe(client, client->getRemote()); + if (status != OK) { + // this is probably not recoverable.. maybe the client can try again + // OK: we can only get here if we were originally in PRESENT state + updateStatus(ICameraServiceListener::STATUS_PRESENT, cameraId); + return status; + } + + LOG1("CameraService::connectDevice X (id %d, this pid is %d)", cameraId, + getpid()); + + mClient[cameraId] = client; + } + // important: release the mutex here so the client can call back + // into the service from its destructor (can be at the end of the call) + + device = client; + return OK; } + status_t CameraService::addListener( const sp<ICameraServiceListener>& listener) { ALOGV("%s: Add listener %p", __FUNCTION__, listener.get()); @@ -566,14 +707,14 @@ void CameraService::removeClientByRemote(const wp<IBinder>& remoteBinder) { Mutex::Autolock lock(mServiceLock); int outIndex; - sp<Client> client = findClientUnsafe(remoteBinder, outIndex); + sp<BasicClient> client = findClientUnsafe(remoteBinder, outIndex); if (client != 0) { // Found our camera, clear and leave. LOG1("removeClient: clear camera %d", outIndex); mClient[outIndex].clear(); - client->unlinkToDeath(this); + client->getRemote()->unlinkToDeath(this); } else { sp<ProClient> clientPro = findProClientUnsafe(remoteBinder); @@ -620,9 +761,9 @@ sp<CameraService::ProClient> CameraService::findProClientUnsafe( return clientPro; } -sp<CameraService::Client> CameraService::findClientUnsafe( +sp<CameraService::BasicClient> CameraService::findClientUnsafe( const wp<IBinder>& cameraClient, int& outIndex) { - sp<Client> client; + sp<BasicClient> client; for (int i = 0; i < mNumberOfCameras; i++) { @@ -640,7 +781,7 @@ sp<CameraService::Client> CameraService::findClientUnsafe( continue; } - if (cameraClient == client->getRemoteCallback()->asBinder()) { + if (cameraClient == client->getRemote()) { // Found our camera outIndex = i; return client; @@ -651,7 +792,7 @@ sp<CameraService::Client> CameraService::findClientUnsafe( return NULL; } -CameraService::Client* CameraService::getClientByIdUnsafe(int cameraId) { +CameraService::BasicClient* CameraService::getClientByIdUnsafe(int cameraId) { if (cameraId < 0 || cameraId >= mNumberOfCameras) return NULL; return mClient[cameraId].unsafe_get(); } @@ -906,7 +1047,9 @@ Mutex* CameraService::Client::getClientLockFromCookie(void* user) { // Provide client pointer for callbacks. Client lock returned from getClientLockFromCookie should // be acquired for this to be safe CameraService::Client* CameraService::Client::getClientFromCookie(void* user) { - Client* client = gCameraService->getClientByIdUnsafe((int) user); + BasicClient *basicClient = gCameraService->getClientByIdUnsafe((int) user); + // OK: only CameraClient calls this, and they already cast anyway. + Client* client = static_cast<Client*>(basicClient); // This could happen if the Client is in the process of shutting down (the // last strong reference is gone, but the destructor hasn't finished @@ -1058,7 +1201,7 @@ status_t CameraService::dump(int fd, const Vector<String16>& args) { } } - sp<Client> client = mClient[i].promote(); + sp<BasicClient> client = mClient[i].promote(); if (client == 0) { result = String8::format(" Device is closed, no client instance\n"); write(fd, result.string(), result.size()); |