blob: b9ee918b579611c24213f8f00b86d6cc544df858
| 1 | /* |
| 2 | * Copyright (C) 2014 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 | #include <errno.h> |
| 17 | #include <string.h> |
| 18 | |
| 19 | #include <hardware/hardware.h> |
| 20 | #include <hardware/keymaster0.h> |
| 21 | |
| 22 | #include "aml_keymaster_device.h" |
| 23 | |
| 24 | using keymaster::AmlKeymasterDevice; |
| 25 | |
| 26 | /* |
| 27 | * Generic device handling |
| 28 | */ |
| 29 | static int aml_keymaster_open(const hw_module_t* module, const char* name, hw_device_t** device) { |
| 30 | if (strcmp(name, KEYSTORE_KEYMASTER) != 0) { |
| 31 | return -EINVAL; |
| 32 | } |
| 33 | |
| 34 | AmlKeymasterDevice* dev = new AmlKeymasterDevice(module); |
| 35 | if (dev == NULL) { |
| 36 | return -ENOMEM; |
| 37 | } |
| 38 | *device = dev->hw_device(); |
| 39 | // Do not delete dev; it will get cleaned up when the caller calls device->close(), and must |
| 40 | // exist until then. |
| 41 | return 0; |
| 42 | } |
| 43 | |
| 44 | static struct hw_module_methods_t keystore_module_methods = { |
| 45 | .open = aml_keymaster_open, |
| 46 | }; |
| 47 | |
| 48 | struct keystore_module HAL_MODULE_INFO_SYM __attribute__((visibility("default"))) = { |
| 49 | .common = |
| 50 | { |
| 51 | .tag = HARDWARE_MODULE_TAG, |
| 52 | .module_api_version = KEYMASTER_MODULE_API_VERSION_2_0, |
| 53 | .hal_api_version = HARDWARE_HAL_API_VERSION, |
| 54 | .id = KEYSTORE_HARDWARE_MODULE_ID, |
| 55 | .name = "Amlogic Keymaster HAL", |
| 56 | .author = "Amlogic Inc.", |
| 57 | .methods = &keystore_module_methods, |
| 58 | .dso = 0, |
| 59 | .reserved = {}, |
| 60 | }, |
| 61 | }; |
| 62 |