1 /** 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.hardware.cas@1.0; 18 19 enum Status : uint32_t { 20 /** 21 * The CAS plugin must return OK when an operation completes without any 22 * errors. 23 */ 24 OK, 25 26 /** 27 * The CAS plugin must return ERROR_CAS_NO_LICENSE, when descrambling is 28 * attempted and no license keys have been provided. 29 */ 30 ERROR_CAS_NO_LICENSE, 31 32 /** 33 * ERROR_CAS_LICENSE_EXPIRED must be returned when an attempt is made 34 * to use a license and the keys in that license have expired. 35 */ 36 ERROR_CAS_LICENSE_EXPIRED, 37 38 /** 39 * The CAS plugin must return ERROR_CAS_SESSION_NOT_OPENED when an 40 * attempt is made to use a session that has not been opened. 41 */ 42 ERROR_CAS_SESSION_NOT_OPENED, 43 44 /** 45 * The CAS plugin must return ERROR_CAS_CANNOT_HANDLE when an unsupported 46 * data format or operation is attempted. 47 */ 48 ERROR_CAS_CANNOT_HANDLE, 49 50 /** 51 * ERROR_CAS_INVALID_STATE must be returned when the device is in a state 52 * where it is not able to perform descrambling. 53 */ 54 ERROR_CAS_INVALID_STATE, 55 56 /** 57 * The CAS plugin must return BAD_VALUE whenever an illegal parameter is 58 * passed to one of the interface functions. 59 */ 60 BAD_VALUE, 61 62 /** 63 * The CAS plugin must return ERROR_CAS_NOT_PROVISIONED when the device 64 * has not yet been provisioned. 65 */ 66 ERROR_CAS_NOT_PROVISIONED, 67 68 /** 69 * ERROR_CAS_RESOURCE_BUSY must be returned when resources, such as CAS 70 * sessions or secure buffers are not available to perform a requested 71 * operation because they are already in use. 72 */ 73 ERROR_CAS_RESOURCE_BUSY, 74 75 /** 76 * The CAS Plugin must return ERROR_CAS_INSUFFICIENT_OUTPUT_PROTECTION 77 * when the output protection level enabled on the device is not 78 * sufficient to meet the requirements in the license policy. HDCP is an 79 * example of a form of output protection. 80 */ 81 ERROR_CAS_INSUFFICIENT_OUTPUT_PROTECTION, 82 83 /** 84 * The CAS Plugin must return ERROR_CAS_TAMPER_DETECTED if an attempt to 85 * tamper with the CAS system is detected. 86 */ 87 ERROR_CAS_TAMPER_DETECTED, 88 89 /** 90 * The CAS Plugin must return ERROR_CAS_DEVICE_REVOKED if the response 91 * indicates that the device has been revoked. Device revocation means 92 * that the device is no longer permitted to play content. 93 */ 94 ERROR_CAS_DEVICE_REVOKED, 95 96 /** 97 * The CAS plugin must return ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED when 98 * descrambling is failing because the session is not initialized properly. 99 */ 100 ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED, 101 102 /** 103 * The CAS Plugin must return ERROR_CAS_DECRYPT if the DescramblerPlugin's 104 * descramble operation fails. 105 */ 106 ERROR_CAS_DECRYPT, 107 108 /** 109 * ERROR_CAS_UNKNOWN must be returned when a fatal failure occurs and no 110 * other defined error is appropriate. 111 */ 112 ERROR_CAS_UNKNOWN, 113 }; 114 115 typedef vec<uint8_t> HidlCasSessionId; 116 typedef vec<uint8_t> HidlCasData; 117 118 /** 119 * Describes a CAS plugin with its system id and name. 120 */ 121 struct HidlCasPluginDescriptor { 122 int32_t caSystemId; 123 string name; 124 }; 125
