zephyr/drivers/hwinfo/hwinfo_sam0.c
Anas Nashif f901e26de9 cleanup: include/: move hwinfo.h to drivers/hwinfo.h
move hwinfo.h to drivers/hwinfo.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00

32 lines
706 B
C

/*
* 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;
}