174 lines
5.7 KiB
C
174 lines
5.7 KiB
C
/**
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* Copyright (c) 2015 - 2017, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "sdk_common.h"
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#if NRF_MODULE_ENABLED(WDT)
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#include "nrf_drv_wdt.h"
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#include "nrf_drv_common.h"
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#include "nrf_error.h"
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#include "nrf_assert.h"
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#include "nrf_wdt.h"
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#include "app_util_platform.h"
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#include <stdbool.h>
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#include <stdint.h>
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#define NRF_LOG_MODULE_NAME wdt
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#if WDT_CONFIG_LOG_ENABLED
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#define NRF_LOG_LEVEL WDT_CONFIG_LOG_LEVEL
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#define NRF_LOG_INFO_COLOR WDT_CONFIG_INFO_COLOR
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#define NRF_LOG_DEBUG_COLOR WDT_CONFIG_DEBUG_COLOR
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#else //WDT_CONFIG_LOG_ENABLED
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#define NRF_LOG_LEVEL 0
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#endif //WDT_CONFIG_LOG_ENABLED
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#include "nrf_log.h"
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NRF_LOG_MODULE_REGISTER();
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/**@brief WDT event handler. */
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static nrf_wdt_event_handler_t m_wdt_event_handler;
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/**@brief WDT state. */
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static nrf_drv_state_t m_state;
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/**@brief WDT alloc table. */
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static uint32_t m_alloc_index;
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static const nrf_drv_wdt_config_t m_default_config = NRF_DRV_WDT_DEAFULT_CONFIG;
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/**@brief WDT interrupt handler. */
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void WDT_IRQHandler(void)
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{
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if (nrf_wdt_int_enable_check(NRF_WDT_INT_TIMEOUT_MASK) == true)
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{
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nrf_wdt_event_clear(NRF_WDT_EVENT_TIMEOUT);
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m_wdt_event_handler();
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}
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}
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ret_code_t nrf_drv_wdt_init(nrf_drv_wdt_config_t const * p_config,
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nrf_wdt_event_handler_t wdt_event_handler)
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{
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ASSERT(wdt_event_handler != NULL);
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ret_code_t err_code;
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m_wdt_event_handler = wdt_event_handler;
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if (m_state == NRF_DRV_STATE_UNINITIALIZED)
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{
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m_state = NRF_DRV_STATE_INITIALIZED;
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}
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else
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{
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err_code = NRF_ERROR_INVALID_STATE;
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NRF_LOG_WARNING("Function: %s, error code: %s.", (uint32_t)__func__, (uint32_t)NRF_LOG_ERROR_STRING_GET(err_code));
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return err_code;
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}
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if (p_config == NULL)
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{
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p_config = &m_default_config;
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}
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nrf_wdt_behaviour_set(p_config->behaviour);
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if ((((uint64_t) p_config->reload_value * 32768) / 1000) > UINT32_MAX) // Check for overflow
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{
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return NRF_ERROR_INVALID_PARAM;
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}
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nrf_wdt_reload_value_set(((uint64_t) p_config->reload_value * 32768) / 1000);
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nrf_drv_common_irq_enable(WDT_IRQn, p_config->interrupt_priority);
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err_code = NRF_SUCCESS;
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NRF_LOG_INFO("Function: %s, error code: %s.", (uint32_t)__func__, (uint32_t)NRF_LOG_ERROR_STRING_GET(err_code));
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return err_code;
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}
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void nrf_drv_wdt_enable(void)
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{
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ASSERT(m_alloc_index != 0);
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ASSERT(m_state == NRF_DRV_STATE_INITIALIZED);
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nrf_wdt_int_enable(NRF_WDT_INT_TIMEOUT_MASK);
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nrf_wdt_task_trigger(NRF_WDT_TASK_START);
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m_state = NRF_DRV_STATE_POWERED_ON;
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NRF_LOG_INFO("Enabled.");
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}
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void nrf_drv_wdt_feed(void)
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{
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ASSERT(m_state == NRF_DRV_STATE_POWERED_ON);
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for (uint32_t i = 0; i < m_alloc_index; i++)
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{
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nrf_wdt_reload_request_set((nrf_wdt_rr_register_t)(NRF_WDT_RR0 + i));
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}
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}
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ret_code_t nrf_drv_wdt_channel_alloc(nrf_drv_wdt_channel_id * p_channel_id)
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{
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ret_code_t result;
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ASSERT(p_channel_id);
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ASSERT(m_state == NRF_DRV_STATE_INITIALIZED);
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CRITICAL_REGION_ENTER();
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if (m_alloc_index < NRF_WDT_CHANNEL_NUMBER)
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{
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*p_channel_id = (nrf_drv_wdt_channel_id)(NRF_WDT_RR0 + m_alloc_index);
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m_alloc_index++;
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nrf_wdt_reload_request_enable(*p_channel_id);
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result = NRF_SUCCESS;
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}
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else
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{
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result = NRF_ERROR_NO_MEM;
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}
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CRITICAL_REGION_EXIT();
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NRF_LOG_INFO("Function: %s, error code: %s.", (uint32_t)__func__, (uint32_t)NRF_LOG_ERROR_STRING_GET(result));
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return result;
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}
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void nrf_drv_wdt_channel_feed(nrf_drv_wdt_channel_id channel_id)
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{
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ASSERT(m_state == NRF_DRV_STATE_POWERED_ON);
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nrf_wdt_reload_request_set(channel_id);
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}
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#endif //NRF_MODULE_ENABLED(WDT)
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