123 lines
2.4 KiB
C
123 lines
2.4 KiB
C
/*
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* Copyright (c) 2018 Alexander Wachter
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <soc.h>
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#include <zephyr/drivers/hwinfo.h>
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#include <string.h>
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#include <hal/nrf_ficr.h>
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#include <zephyr/sys/byteorder.h>
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#ifndef CONFIG_BOARD_QEMU_CORTEX_M0
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#include <helpers/nrfx_reset_reason.h>
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#endif
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#include <soc_secure.h>
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struct nrf_uid {
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uint32_t id[2];
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};
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ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
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{
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struct nrf_uid dev_id;
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uint32_t deviceid[2];
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soc_secure_read_deviceid(deviceid);
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dev_id.id[0] = sys_cpu_to_be32(deviceid[1]);
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dev_id.id[1] = sys_cpu_to_be32(deviceid[0]);
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if (length > sizeof(dev_id.id)) {
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length = sizeof(dev_id.id);
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}
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memcpy(buffer, dev_id.id, length);
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return length;
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}
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#ifndef CONFIG_BOARD_QEMU_CORTEX_M0
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int z_impl_hwinfo_get_reset_cause(uint32_t *cause)
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{
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uint32_t flags = 0;
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uint32_t reason = nrfx_reset_reason_get();
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if (reason & NRFX_RESET_REASON_RESETPIN_MASK) {
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flags |= RESET_PIN;
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}
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if (reason & NRFX_RESET_REASON_DOG_MASK) {
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flags |= RESET_WATCHDOG;
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}
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if (reason & NRFX_RESET_REASON_LOCKUP_MASK) {
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flags |= RESET_CPU_LOCKUP;
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}
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if (reason & NRFX_RESET_REASON_OFF_MASK) {
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flags |= RESET_LOW_POWER_WAKE;
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}
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if (reason & NRFX_RESET_REASON_DIF_MASK) {
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flags |= RESET_DEBUG;
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}
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#if !NRF_POWER_HAS_RESETREAS
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if (reason & NRFX_RESET_REASON_CTRLAP_MASK) {
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flags |= RESET_DEBUG;
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}
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if (reason & NRFX_RESET_REASON_DOG0_MASK) {
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flags |= RESET_WATCHDOG;
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}
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if (reason & NRFX_RESET_REASON_DOG1_MASK) {
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flags |= RESET_WATCHDOG;
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}
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if (reason & NRFX_RESETREAS_SREQ_MASK) {
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flags |= RESET_SOFTWARE;
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}
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#if NRF_RESET_HAS_NETWORK
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if (reason & NRFX_RESET_REASON_LSREQ_MASK) {
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flags |= RESET_SOFTWARE;
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}
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if (reason & NRFX_RESET_REASON_LLOCKUP_MASK) {
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flags |= RESET_CPU_LOCKUP;
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}
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if (reason & NRFX_RESET_REASON_LDOG_MASK) {
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flags |= RESET_WATCHDOG;
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}
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if (reason & NRFX_RESET_REASON_LCTRLAP_MASK) {
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flags |= RESET_DEBUG;
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}
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#endif
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#else
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if (reason & NRFX_RESET_REASON_SREQ_MASK) {
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flags |= RESET_SOFTWARE;
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}
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#endif
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*cause = flags;
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return 0;
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}
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int z_impl_hwinfo_clear_reset_cause(void)
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{
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uint32_t reason = -1;
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nrfx_reset_reason_clear(reason);
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return 0;
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}
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int z_impl_hwinfo_get_supported_reset_cause(uint32_t *supported)
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{
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*supported = (RESET_PIN
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| RESET_WATCHDOG
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| RESET_SOFTWARE
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| RESET_CPU_LOCKUP
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| RESET_LOW_POWER_WAKE
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| RESET_DEBUG);
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return 0;
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}
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#endif
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