| /* |
| * Copyright (C) 2018 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. |
| */ |
| |
| package android.hardware.biometrics; |
| |
| import android.hardware.fingerprint.FingerprintManager; |
| |
| /** |
| * Interface containing all of the fingerprint-specific constants. |
| * @hide |
| */ |
| public interface BiometricFingerprintConstants { |
| // |
| // Error messages from fingerprint hardware during initilization, enrollment, authentication or |
| // removal. Must agree with the list in fingerprint.h |
| // |
| |
| /** |
| * The hardware is unavailable. Try again later. |
| */ |
| public static final int FINGERPRINT_ERROR_HW_UNAVAILABLE = 1; |
| |
| /** |
| * Error state returned when the sensor was unable to process the current image. |
| */ |
| public static final int FINGERPRINT_ERROR_UNABLE_TO_PROCESS = 2; |
| |
| /** |
| * Error state returned when the current request has been running too long. This is intended to |
| * prevent programs from waiting for the fingerprint sensor indefinitely. The timeout is |
| * platform and sensor-specific, but is generally on the order of 30 seconds. |
| */ |
| public static final int FINGERPRINT_ERROR_TIMEOUT = 3; |
| |
| /** |
| * Error state returned for operations like enrollment; the operation cannot be completed |
| * because there's not enough storage remaining to complete the operation. |
| */ |
| public static final int FINGERPRINT_ERROR_NO_SPACE = 4; |
| |
| /** |
| * The operation was canceled because the fingerprint sensor is unavailable. For example, |
| * this may happen when the user is switched, the device is locked or another pending operation |
| * prevents or disables it. |
| */ |
| public static final int FINGERPRINT_ERROR_CANCELED = 5; |
| |
| /** |
| * The {@link FingerprintManager#remove} call failed. Typically this will happen when the |
| * provided fingerprint id was incorrect. |
| * |
| * @hide |
| */ |
| public static final int FINGERPRINT_ERROR_UNABLE_TO_REMOVE = 6; |
| |
| /** |
| * The operation was canceled because the API is locked out due to too many attempts. |
| * This occurs after 5 failed attempts, and lasts for 30 seconds. |
| */ |
| public static final int FINGERPRINT_ERROR_LOCKOUT = 7; |
| |
| /** |
| * Hardware vendors may extend this list if there are conditions that do not fall under one of |
| * the above categories. Vendors are responsible for providing error strings for these errors. |
| * These messages are typically reserved for internal operations such as enrollment, but may be |
| * used to express vendor errors not covered by the ones in fingerprint.h. Applications are |
| * expected to show the error message string if they happen, but are advised not to rely on the |
| * message id since they will be device and vendor-specific |
| */ |
| public static final int FINGERPRINT_ERROR_VENDOR = 8; |
| |
| /** |
| * The operation was canceled because FINGERPRINT_ERROR_LOCKOUT occurred too many times. |
| * Fingerprint authentication is disabled until the user unlocks with strong authentication |
| * (PIN/Pattern/Password) |
| */ |
| public static final int FINGERPRINT_ERROR_LOCKOUT_PERMANENT = 9; |
| |
| /** |
| * The user canceled the operation. Upon receiving this, applications should use alternate |
| * authentication (e.g. a password). The application should also provide the means to return |
| * to fingerprint authentication, such as a "use fingerprint" button. |
| */ |
| public static final int FINGERPRINT_ERROR_USER_CANCELED = 10; |
| |
| /** |
| * The user does not have any fingerprints enrolled. |
| */ |
| public static final int FINGERPRINT_ERROR_NO_FINGERPRINTS = 11; |
| |
| /** |
| * The device does not have a fingerprint sensor. |
| */ |
| public static final int FINGERPRINT_ERROR_HW_NOT_PRESENT = 12; |
| |
| /** |
| * @hide |
| */ |
| public static final int FINGERPRINT_ERROR_VENDOR_BASE = 1000; |
| |
| // |
| // Image acquisition messages. Must agree with those in fingerprint.h |
| // |
| |
| /** |
| * The image acquired was good. |
| */ |
| public static final int FINGERPRINT_ACQUIRED_GOOD = 0; |
| |
| /** |
| * Only a partial fingerprint image was detected. During enrollment, the user should be |
| * informed on what needs to happen to resolve this problem, e.g. "press firmly on sensor." |
| */ |
| public static final int FINGERPRINT_ACQUIRED_PARTIAL = 1; |
| |
| /** |
| * The fingerprint image was too noisy to process due to a detected condition (i.e. dry skin) or |
| * a possibly dirty sensor (See {@link #FINGERPRINT_ACQUIRED_IMAGER_DIRTY}). |
| */ |
| public static final int FINGERPRINT_ACQUIRED_INSUFFICIENT = 2; |
| |
| /** |
| * The fingerprint image was too noisy due to suspected or detected dirt on the sensor. |
| * For example, it's reasonable return this after multiple |
| * {@link #FINGERPRINT_ACQUIRED_INSUFFICIENT} or actual detection of dirt on the sensor |
| * (stuck pixels, swaths, etc.). The user is expected to take action to clean the sensor |
| * when this is returned. |
| */ |
| public static final int FINGERPRINT_ACQUIRED_IMAGER_DIRTY = 3; |
| |
| /** |
| * The fingerprint image was unreadable due to lack of motion. This is most appropriate for |
| * linear array sensors that require a swipe motion. |
| */ |
| public static final int FINGERPRINT_ACQUIRED_TOO_SLOW = 4; |
| |
| /** |
| * The fingerprint image was incomplete due to quick motion. While mostly appropriate for |
| * linear array sensors, this could also happen if the finger was moved during acquisition. |
| * The user should be asked to move the finger slower (linear) or leave the finger on the sensor |
| * longer. |
| */ |
| public static final int FINGERPRINT_ACQUIRED_TOO_FAST = 5; |
| |
| /** |
| * Hardware vendors may extend this list if there are conditions that do not fall under one of |
| * the above categories. Vendors are responsible for providing error strings for these errors. |
| * @hide |
| */ |
| public static final int FINGERPRINT_ACQUIRED_VENDOR = 6; |
| /** |
| * @hide |
| */ |
| public static final int FINGERPRINT_ACQUIRED_VENDOR_BASE = 1000; |
| } |