| /* |
| * Copyright (c) 2019 ML!PA Consulting GmbH |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <soc.h> |
| #include <drivers/hwinfo.h> |
| #include <string.h> |
| |
| struct sam0_uid { |
| u32_t id[4]; |
| }; |
| |
| ssize_t z_impl_hwinfo_get_device_id(u8_t *buffer, size_t length) |
| { |
| struct sam0_uid dev_id; |
| |
| dev_id.id[0] = *(const u32_t *) DT_INST_0_ATMEL_SAM0_ID_BASE_ADDRESS_0; |
| dev_id.id[1] = *(const u32_t *) DT_INST_0_ATMEL_SAM0_ID_BASE_ADDRESS_1; |
| dev_id.id[2] = *(const u32_t *) DT_INST_0_ATMEL_SAM0_ID_BASE_ADDRESS_2; |
| dev_id.id[3] = *(const u32_t *) DT_INST_0_ATMEL_SAM0_ID_BASE_ADDRESS_3; |
| |
| if (length > sizeof(dev_id.id)) { |
| length = sizeof(dev_id.id); |
| } |
| |
| memcpy(buffer, dev_id.id, length); |
| |
| return length; |
| } |