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drivers: hwinfo: add driver support for Nordic NRF device ID

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Add driver support for Nordic NRF ID device.
This device has an ID of 8 bytes.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
This commit is contained in:
Alexander Wachter 2019-01-07 17:18:35 +01:00 • committed by Anas Nashif
commit 841f72f81e
3 changed files with 37 additions and 0 deletions
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1
drivers/hwinfo/CMakeLists.txt
View file

@ -2,3 +2,4 @@ zephyr_sources_ifdef(CONFIG_USERSPACE hwinfo_handlers.c)
zephyr_sources_ifdef(CONFIG_HWINFO hwinfo_weak_impl.c)
zephyr_sources_ifdef(CONFIG_HWINFO_STM32 hwinfo_stm32.c)
zephyr_sources_ifdef(CONFIG_HWINFO_NRF hwinfo_nrf.c)

7
drivers/hwinfo/Kconfig
View file

@ -21,4 +21,11 @@ config HWINFO_STM32
help
Enable STM32 hwinfo driver.
config HWINFO_NRF
bool "NRF device ID"
default y
depends on (SOC_SERIES_NRF52X || SOC_SERIES_NRF51X)
help
Enable Nordic NRF hwinfo driver.
endif

29
drivers/hwinfo/hwinfo_nrf.c Normal file
View file

@ -0,0 +1,29 @@
/*
* Copyright (c) 2018 Alexander Wachter
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <soc.h>
#include <hwinfo.h>
#include <string.h>
struct nrf_uid {
u32_t id[2];
};
ssize_t _impl_hwinfo_get_device_id(u8_t *buffer, size_t length)
{
struct nrf_uid dev_id;
dev_id.id[0] = NRF_FICR->DEVICEID[0];
dev_id.id[1] = NRF_FICR->DEVICEID[1];
if (length > sizeof(dev_id.id)) {
length = sizeof(dev_id.id);
}
memcpy(buffer, dev_id.id, length);
return length;
}