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drivers: hwinfo: add driver support for kinetis device ID

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Add driver support for kinetis ID device.
The length depends on the SoC.
`SIM_GetUniqueId` was not used because the struct would reorder
the ID and makes the driver more complicated because the length
of the struct depends on the SoC.

Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
This commit is contained in:
Alexander Wachter 2019-02-03 18:39:34 +01:00 • committed by Maureen Helm
commit 50156e0ea9
4 changed files with 64 additions and 2 deletions
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1
boards/arm/frdm_k64f/frdm_k64f.yaml
View file

@ -15,5 +15,6 @@ supported:
- gpio
- usb_device
- watchdog
- hwinfo
testing:
default: true

5
drivers/hwinfo/CMakeLists.txt
View file

@ -1,7 +1,8 @@
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)
zephyr_sources_ifdef(CONFIG_HWINFO_STM32 hwinfo_stm32.c)
zephyr_sources_ifdef(CONFIG_HWINFO_NRF hwinfo_nrf.c)
zephyr_sources_ifdef(CONFIG_HWINFO_MCUX_SIM hwinfo_mcux_sim.c)
zephyr_sources_ifdef(CONFIG_HWINFO_SHELL hwinfo_shell.c)

7
drivers/hwinfo/Kconfig
View file

@ -33,4 +33,11 @@ config HWINFO_NRF
help
Enable Nordic NRF hwinfo driver.
config HWINFO_MCUX_SIM
bool "NXP kinetis device ID"
default y
depends on HAS_MCUX_SIM
help
Enable NXP kinetis mcux hwinfo driver.
endif

53
drivers/hwinfo/hwinfo_mcux_sim.c Normal file
View file

@ -0,0 +1,53 @@
/*
* Copyright (c) 2019 Alexander Wachter
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <hwinfo.h>
#include <string.h>
#include <fsl_sim.h>
#if defined(SIM_UIDH)
#define HWINFO_DEVICE_ID_LENGTH_H 1
#else
#define HWINFO_DEVICE_ID_LENGTH_H 0
#endif
#if (defined(FSL_FEATURE_SIM_HAS_UIDM) && FSL_FEATURE_SIM_HAS_UIDM)
#define HWINFO_DEVICE_ID_LENGTH_M 1
#else
#define HWINFO_DEVICE_ID_LENGTH_M 2
#endif
#define HWINFO_DEVICE_ID_LENGTH_L 1
#define HWINFO_DEVICE_ID_LENGTH_TOTAL (HWINFO_DEVICE_ID_LENGTH_L + \
HWINFO_DEVICE_ID_LENGTH_M + \
HWINFO_DEVICE_ID_LENGTH_H)
struct kinetis_uid {
u32_t id[HWINFO_DEVICE_ID_LENGTH_TOTAL];
};
ssize_t _impl_hwinfo_get_device_id(u8_t *buffer, size_t length)
{
struct kinetis_uid dev_id;
dev_id.id[0] = SIM->UIDL;
#if (defined(FSL_FEATURE_SIM_HAS_UIDM) && FSL_FEATURE_SIM_HAS_UIDM)
dev_id.id[1] = SIM->UIDM;
#else
dev_id.id[1] = SIM->UIDML;
dev_id.id[2] = SIM->UIDMH;
#if defined(SIM_UIDH)
dev_id.id[3] = SIM->UIDH;
#endif /* SIM_UIDH */
#endif /* defined(FSL_FEATURE_SIM_HAS_UIDM) && FSL_FEATURE_SIM_HAS_UIDM */
if (length > sizeof(dev_id.id)) {
length = sizeof(dev_id.id);
}
memcpy(buffer, dev_id.id, length);
return length;
}