| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| #include <inttypes.h> |
| #include <string.h> |
| |
| #include "hal/hal_bsp.h" |
| |
| #include "hal_native_priv.h" |
| |
| #ifndef min |
| #define min(a, b) ((a)<(b)?(a):(b)) |
| #endif |
| |
| static uint8_t hal_hw_id[HAL_BSP_MAX_ID_LEN]; |
| static uint8_t hal_hw_id_len; |
| |
| int |
| hal_bsp_hw_id_len(void) |
| { |
| if (hal_hw_id_len != 0) { |
| return hal_hw_id_len; |
| } else { |
| return HAL_BSP_MAX_ID_LEN; |
| } |
| } |
| |
| /* |
| * This can be used as the unique hardware identifier for the platform, as |
| * it's supposed to be unique for this particular MCU. |
| */ |
| int |
| hal_bsp_hw_id(uint8_t *id, int max_len) |
| { |
| if (hal_hw_id_len) { |
| if (max_len > hal_hw_id_len) { |
| max_len = hal_hw_id_len; |
| } |
| memcpy(id, hal_hw_id, max_len); |
| return max_len; |
| } |
| if (max_len > HAL_BSP_MAX_ID_LEN) { |
| max_len = HAL_BSP_MAX_ID_LEN; |
| } |
| memset(id, 0x42, max_len); |
| return max_len; |
| } |
| |
| void |
| hal_bsp_set_hw_id(const uint8_t *id, int len) |
| { |
| if (len > HAL_BSP_MAX_ID_LEN) { |
| len = HAL_BSP_MAX_ID_LEN; |
| } |
| hal_hw_id_len = len; |
| memcpy(hal_hw_id, id, len); |
| } |