31 lines
549 B
C
31 lines
549 B
C
/*
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* Copyright (c) 2020 Gerson Fernando Budke <nandojve@gmail.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT atmel_sam4l_uid
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#include <device.h>
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#include <drivers/hwinfo.h>
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#include <init.h>
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#include <soc.h>
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#include <string.h>
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ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
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{
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uint8_t *uid_addr = (uint8_t *) DT_INST_REG_ADDR(0);
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if (buffer == NULL) {
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return 0;
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}
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if (length > DT_INST_REG_SIZE(0)) {
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length = DT_INST_REG_SIZE(0);
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}
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memcpy(buffer, uid_addr, length);
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return length;
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}
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