blob: 42f0a1071ca20dcb6f33f3f543384ed99bf67200 [file] [log] [blame]
/*
* Copyright (c) 2021 Sun Amar
* Copyright (c) 2021 Yonatan Schachter
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <em_system.h>
#include <em_rmu.h>
#include <zephyr/drivers/hwinfo.h>
#include <string.h>
#include <zephyr/sys/byteorder.h>
#if defined(RMU_RSTCAUSE_BODUNREGRST) || defined(RMU_RSTCAUSE_BODREGRST) || \
defined(RMU_RSTCAUSE_AVDDBOD) || defined(RMU_RSTCAUSE_DVDDBOD) || \
defined(RMU_RSTCAUSE_DECBOD) || defined(RMU_RSTCAUSE_BODAVDD0) || \
defined(RMU_RSTCAUSE_BODAVDD1) || \
(defined(BU_PRESENT) && defined(_SILICON_LABS_32B_SERIES_0))
#define HAS_BROWNOUT 1
#endif
ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
{
uint64_t unique_id = sys_cpu_to_be64(SYSTEM_GetUnique());
if (length > sizeof(unique_id)) {
length = sizeof(unique_id);
}
memcpy(buffer, &unique_id, length);
return length;
}
int z_impl_hwinfo_get_reset_cause(uint32_t *cause)
{
uint32_t flags = 0;
uint32_t rmu_flags = RMU_ResetCauseGet();
#ifdef RMU_RSTCAUSE_PORST
if (rmu_flags & RMU_RSTCAUSE_PORST) {
flags |= RESET_POR;
}
#endif /* RMU_RSTCAUSE_PORST */
#ifdef RMU_RSTCAUSE_EXTRST
if (rmu_flags & RMU_RSTCAUSE_EXTRST) {
flags |= RESET_PIN;
}
#endif /* RMU_RSTCAUSE_EXTRST */
#ifdef RMU_RSTCAUSE_SYSREQRST
if (rmu_flags & RMU_RSTCAUSE_SYSREQRST) {
flags |= RESET_SOFTWARE;
}
#endif /* RMU_RSTCAUSE_SYSREQRST */
#ifdef RMU_RSTCAUSE_LOCKUPRST
if (rmu_flags & RMU_RSTCAUSE_LOCKUPRST) {
flags |= RESET_CPU_LOCKUP;
}
#endif /* RMU_RSTCAUSE_LOCKUPRST */
#ifdef RMU_RSTCAUSE_WDOGRST
if (rmu_flags & RMU_RSTCAUSE_WDOGRST) {
flags |= RESET_WATCHDOG;
}
#endif /* RMU_RSTCAUSE_WDOGRST */
#ifdef RMU_RSTCAUSE_EM4WURST
if (rmu_flags & RMU_RSTCAUSE_EM4WURST) {
flags |= RESET_LOW_POWER_WAKE;
}
#endif /* RMU_RSTCAUSE_EM4WURST */
#ifdef RMU_RSTCAUSE_EM4RST
if (rmu_flags & RMU_RSTCAUSE_EM4RST) {
flags |= RESET_LOW_POWER_WAKE;
}
#endif /* RMU_RSTCAUSE_EM4RST */
#ifdef RMU_RSTCAUSE_BODUNREGRST
if (rmu_flags & RMU_RSTCAUSE_BODUNREGRST) {
flags |= RESET_BROWNOUT;
}
#endif /* RMU_RSTCAUSE_BODUNREGRST */
#ifdef RMU_RSTCAUSE_BODREGRST
if (rmu_flags & RMU_RSTCAUSE_BODREGRST) {
flags |= RESET_BROWNOUT;
}
#endif /* RMU_RSTCAUSE_BODREGRST */
#ifdef RMU_RSTCAUSE_AVDDBOD
if (rmu_flags & RMU_RSTCAUSE_AVDDBOD) {
flags |= RESET_BROWNOUT;
}
#endif /* RMU_RSTCAUSE_AVDDBOD */
#ifdef RMU_RSTCAUSE_DVDDBOD
if (rmu_flags & RMU_RSTCAUSE_DVDDBOD) {
flags |= RESET_BROWNOUT;
}
#endif /* RMU_RSTCAUSE_DVDDBOD */
#ifdef RMU_RSTCAUSE_DECBOD
if (rmu_flags & RMU_RSTCAUSE_DECBOD) {
flags |= RESET_BROWNOUT;
}
#endif /* RMU_RSTCAUSE_DECBOD */
#ifdef RMU_RSTCAUSE_BODAVDD0
if (rmu_flags & RMU_RSTCAUSE_BODAVDD0) {
flags |= RESET_BROWNOUT;
}
#endif /* RMU_RSTCAUSE_BODAVDD0 */
#ifdef RMU_RSTCAUSE_BODAVDD1
if (rmu_flags & RMU_RSTCAUSE_BODAVDD1) {
flags |= RESET_BROWNOUT;
}
#endif /* RMU_RSTCAUSE_BODAVDD1 */
#if defined(BU_PRESENT) && defined(_SILICON_LABS_32B_SERIES_0)
if (rmu_flags & RMU_RSTCAUSE_BUBODVDDDREG) {
flags |= RESET_BROWNOUT;
}
if (rmu_flags & RMU_RSTCAUSE_BUBODBUVIN) {
flags |= RESET_BROWNOUT;
}
if (rmu_flags & RMU_RSTCAUSE_BUBODUNREG) {
flags |= RESET_BROWNOUT;
}
if (rmu_flags & RMU_RSTCAUSE_BUBODREG) {
flags |= RESET_BROWNOUT;
}
if (rmu_flags & RMU_RSTCAUSE_BUMODERST) {
flags |= RESET_BROWNOUT;
}
#elif defined(RMU_RSTCAUSE_BUMODERST)
if (rmu_flags & RMU_RSTCAUSE_BUMODERST) {
flags |= RESET_BROWNOUT;
}
#endif /* defined(BU_PRESENT) && defined(_SILICON_LABS_32B_SERIES_0) */
*cause = flags;
return 0;
}
int z_impl_hwinfo_clear_reset_cause(void)
{
RMU_ResetCauseClear();
return 0;
}
int z_impl_hwinfo_get_supported_reset_cause(uint32_t *supported)
{
*supported = RESET_PIN
| RESET_SOFTWARE
| RESET_POR
| RESET_WATCHDOG
| RESET_CPU_LOCKUP
#if defined(RMU_RSTCAUSE_EM4WURST) || defined(RMU_RSTCAUSE_EM4RST)
| RESET_LOW_POWER_WAKE
#endif /* defined(RMU_RSTCAUSE_EM4WURST) || defined(RMU_RSTCAUSE_EM4RST) */
#if HAS_BROWNOUT
| RESET_BROWNOUT
#endif /* HAS_BROWNOUT */
;
return 0;
}