/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include <inttypes.h>
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#include <string.h>
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#include "hal/hal_bsp.h"
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#include "hal_native_priv.h"
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#ifndef min
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#define min(a, b) ((a)<(b)?(a):(b))
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#endif
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static uint8_t hal_hw_id[HAL_BSP_MAX_ID_LEN];
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static uint8_t hal_hw_id_len;
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int
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hal_bsp_hw_id_len(void)
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{
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if (hal_hw_id_len != 0) {
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return hal_hw_id_len;
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} else {
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return HAL_BSP_MAX_ID_LEN;
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}
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}
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/*
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* This can be used as the unique hardware identifier for the platform, as
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* it's supposed to be unique for this particular MCU.
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*/
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int
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hal_bsp_hw_id(uint8_t *id, int max_len)
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{
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if (hal_hw_id_len) {
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if (max_len > hal_hw_id_len) {
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max_len = hal_hw_id_len;
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}
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memcpy(id, hal_hw_id, max_len);
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return max_len;
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}
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if (max_len > HAL_BSP_MAX_ID_LEN) {
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max_len = HAL_BSP_MAX_ID_LEN;
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}
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memset(id, 0x42, max_len);
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return max_len;
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}
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void
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hal_bsp_set_hw_id(const uint8_t *id, int len)
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{
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if (len > HAL_BSP_MAX_ID_LEN) {
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len = HAL_BSP_MAX_ID_LEN;
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}
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hal_hw_id_len = len;
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memcpy(hal_hw_id, id, len);
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}
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