32 lines
678 B
C
32 lines
678 B
C
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/*
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* Copyright (c) 2019 ML!PA Consulting GmbH
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <soc.h>
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#include <hwinfo.h>
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#include <string.h>
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struct sam0_uid {
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u32_t id[4];
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};
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ssize_t z_impl_hwinfo_get_device_id(u8_t *buffer, size_t length)
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{
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struct sam0_uid dev_id;
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dev_id.id[0] = *(const u32_t *) DT_ATMEL_SAM0_ID_0_BASE_ADDRESS_0;
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dev_id.id[1] = *(const u32_t *) DT_ATMEL_SAM0_ID_0_BASE_ADDRESS_1;
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dev_id.id[2] = *(const u32_t *) DT_ATMEL_SAM0_ID_0_BASE_ADDRESS_2;
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dev_id.id[3] = *(const u32_t *) DT_ATMEL_SAM0_ID_0_BASE_ADDRESS_3;
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if (length > sizeof(dev_id.id)) {
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length = sizeof(dev_id.id);
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}
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memcpy(buffer, dev_id.id, length);
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return length;
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}
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