From 9c048ea9d7aba61a1ae12435909d3e57d25e97e4 Mon Sep 17 00:00:00 2001 From: Sebastian Kuzminsky Date: Fri, 24 Oct 2025 23:37:23 -0600 Subject: [PATCH] add nrfx wdt driver source from nrfx 2.1.0 This file is copied from --- cores/nRF5/nordic/nrfx/drivers/src/nrfx_wdt.c | 181 ++++++++++++++++++ 1 file changed, 181 insertions(+) create mode 100644 cores/nRF5/nordic/nrfx/drivers/src/nrfx_wdt.c diff --git a/cores/nRF5/nordic/nrfx/drivers/src/nrfx_wdt.c b/cores/nRF5/nordic/nrfx/drivers/src/nrfx_wdt.c new file mode 100644 index 000000000..63dec1cd8 --- /dev/null +++ b/cores/nRF5/nordic/nrfx/drivers/src/nrfx_wdt.c @@ -0,0 +1,181 @@ +/* + * Copyright (c) 2015 - 2020, Nordic Semiconductor ASA + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the copyright holder nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include + +#if NRFX_CHECK(NRFX_WDT_ENABLED) + +#if !(NRFX_CHECK(NRFX_WDT0_ENABLED) || NRFX_CHECK(NRFX_WDT1_ENABLED)) +#error "No enabled WDT instances. Check ." +#endif + +#include + +#define NRFX_LOG_MODULE WDT +#include + +// Control block - driver instance local data. +typedef struct +{ + nrfx_drv_state_t state; + uint8_t alloc_index; +#if !NRFX_CHECK(NRFX_WDT_CONFIG_NO_IRQ) + nrfx_wdt_event_handler_t wdt_event_handler; +#endif +} wdt_control_block_t; + +static wdt_control_block_t m_cb[NRFX_WDT_ENABLED_COUNT]; + +nrfx_err_t nrfx_wdt_init(nrfx_wdt_t const * p_instance, + nrfx_wdt_config_t const * p_config, + nrfx_wdt_event_handler_t wdt_event_handler) +{ + NRFX_ASSERT(p_config); + nrfx_err_t err_code; + + wdt_control_block_t * p_cb = &m_cb[p_instance->drv_inst_idx]; + +#if NRFX_CHECK(NRFX_WDT_CONFIG_NO_IRQ) + (void)wdt_event_handler; +#else + p_cb->wdt_event_handler = wdt_event_handler; +#endif + + if (p_cb->state == NRFX_DRV_STATE_UNINITIALIZED) + { + p_cb->state = NRFX_DRV_STATE_INITIALIZED; + } + else + { + err_code = NRFX_ERROR_INVALID_STATE; + NRFX_LOG_WARNING("Function: %s, error code: %s.", + __func__, + NRFX_LOG_ERROR_STRING_GET(err_code)); + return err_code; + } + + nrf_wdt_behaviour_set(p_instance->p_reg, p_config->behaviour); + + uint64_t ticks = (p_config->reload_value * 32768ULL) / 1000; + NRFX_ASSERT(ticks <= UINT32_MAX); + + nrf_wdt_reload_value_set(p_instance->p_reg, (uint32_t) ticks); + +#if !NRFX_CHECK(NRFX_WDT_CONFIG_NO_IRQ) + if (wdt_event_handler) + { + nrf_wdt_int_enable(p_instance->p_reg, NRF_WDT_INT_TIMEOUT_MASK); + NRFX_IRQ_PRIORITY_SET(nrfx_get_irq_number(p_instance->p_reg), p_config->interrupt_priority); + NRFX_IRQ_ENABLE(nrfx_get_irq_number(p_instance->p_reg)); + } +#endif + + err_code = NRFX_SUCCESS; + NRFX_LOG_INFO("Function: %s, error code: %s.", __func__, NRFX_LOG_ERROR_STRING_GET(err_code)); + return err_code; +} + + +void nrfx_wdt_enable(nrfx_wdt_t const * p_instance) +{ + wdt_control_block_t * p_cb = &m_cb[p_instance->drv_inst_idx]; + NRFX_ASSERT(p_cb->alloc_index != 0); + NRFX_ASSERT(p_cb->state == NRFX_DRV_STATE_INITIALIZED); + nrf_wdt_task_trigger(p_instance->p_reg, NRF_WDT_TASK_START); + p_cb->state = NRFX_DRV_STATE_POWERED_ON; + NRFX_LOG_INFO("Enabled."); +} + + +void nrfx_wdt_feed(nrfx_wdt_t const * p_instance) +{ + wdt_control_block_t const * p_cb = &m_cb[p_instance->drv_inst_idx]; + NRFX_ASSERT(p_cb->state == NRFX_DRV_STATE_POWERED_ON); + for (uint8_t i = 0; i < p_cb->alloc_index; i++) + { + nrf_wdt_reload_request_set(p_instance->p_reg, (nrf_wdt_rr_register_t)(NRF_WDT_RR0 + i)); + } +} + +nrfx_err_t nrfx_wdt_channel_alloc(nrfx_wdt_t const * p_instance, nrfx_wdt_channel_id * p_channel_id) +{ + nrfx_err_t result; + wdt_control_block_t * p_cb = &m_cb[p_instance->drv_inst_idx]; + + NRFX_ASSERT(p_channel_id); + NRFX_ASSERT(p_cb->state == NRFX_DRV_STATE_INITIALIZED); + + NRFX_CRITICAL_SECTION_ENTER(); + if (p_cb->alloc_index < NRF_WDT_CHANNEL_NUMBER) + { + *p_channel_id = (nrfx_wdt_channel_id)(NRF_WDT_RR0 + p_cb->alloc_index); + p_cb->alloc_index++; + nrf_wdt_reload_request_enable(p_instance->p_reg, *p_channel_id); + result = NRFX_SUCCESS; + } + else + { + result = NRFX_ERROR_NO_MEM; + } + NRFX_CRITICAL_SECTION_EXIT(); + NRFX_LOG_INFO("Function: %s, error code: %s.", __func__, NRFX_LOG_ERROR_STRING_GET(result)); + return result; +} + +void nrfx_wdt_channel_feed(nrfx_wdt_t const * p_instance, nrfx_wdt_channel_id channel_id) +{ + NRFX_ASSERT(m_cb[p_instance->drv_inst_idx].state == NRFX_DRV_STATE_POWERED_ON); + nrf_wdt_reload_request_set(p_instance->p_reg, channel_id); +} + +#if NRFX_CHECK(NRFX_WDT0_ENABLED) && !NRFX_CHECK(NRFX_WDT_CONFIG_NO_IRQ) +void nrfx_wdt_0_irq_handler(void) +{ + if (nrf_wdt_event_check(NRF_WDT0, NRF_WDT_EVENT_TIMEOUT)) + { + m_cb[NRFX_WDT0_INST_IDX].wdt_event_handler(); + nrf_wdt_event_clear(NRF_WDT0, NRF_WDT_EVENT_TIMEOUT); + } +} +#endif + +#if NRFX_CHECK(NRFX_WDT1_ENABLED) && !NRFX_CHECK(NRFX_WDT_CONFIG_NO_IRQ) +void nrfx_wdt_1_irq_handler(void) +{ + if (nrf_wdt_event_check(NRF_WDT1, NRF_WDT_EVENT_TIMEOUT)) + { + m_cb[NRFX_WDT1_INST_IDX].wdt_event_handler(); + nrf_wdt_event_clear(NRF_WDT1, NRF_WDT_EVENT_TIMEOUT); + } +} +#endif + +#endif // NRFX_CHECK(NRFX_WDT_ENABLED)