| /** |
| * Copyright (c) 2014 - 2018, 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. |
| */ |
| |
| #ifndef NRFX_WDT_H__ |
| #define NRFX_WDT_H__ |
| |
| #include <nrfx.h> |
| #include <hal/nrf_wdt.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * @defgroup nrfx_wdt WDT driver |
| * @{ |
| * @ingroup nrf_wdt |
| * @brief Watchdog Timer (WDT) peripheral driver. |
| */ |
| |
| /**@brief Struct for WDT initialization. */ |
| typedef struct |
| { |
| nrf_wdt_behaviour_t behaviour; /**< WDT behaviour when CPU in sleep/halt mode. */ |
| uint32_t reload_value; /**< WDT reload value in ms. */ |
| uint8_t interrupt_priority; /**< WDT interrupt priority */ |
| } nrfx_wdt_config_t; |
| |
| /**@brief WDT event handler function type. */ |
| typedef void (*nrfx_wdt_event_handler_t)(void); |
| |
| /**@brief WDT channel id type. */ |
| typedef nrf_wdt_rr_register_t nrfx_wdt_channel_id; |
| |
| #define NRFX_WDT_DEAFULT_CONFIG \ |
| { \ |
| .behaviour = (nrf_wdt_behaviour_t)NRFX_WDT_CONFIG_BEHAVIOUR, \ |
| .reload_value = NRFX_WDT_CONFIG_RELOAD_VALUE, \ |
| .interrupt_priority = NRFX_WDT_CONFIG_IRQ_PRIORITY, \ |
| } |
| /** |
| * @brief This function initializes watchdog. |
| * |
| * @param[in] p_config Pointer to the structure with initial configuration. |
| * @param[in] wdt_event_handler Event handler provided by the user. |
| * Must not be NULL. |
| * |
| * @return NRFX_SUCCESS on success, otherwise an error code. |
| */ |
| nrfx_err_t nrfx_wdt_init(nrfx_wdt_config_t const * p_config, |
| nrfx_wdt_event_handler_t wdt_event_handler); |
| |
| /** |
| * @brief This function allocate watchdog channel. |
| * |
| * @note This function can not be called after nrfx_wdt_start(void). |
| * |
| * @param[out] p_channel_id ID of granted channel. |
| * |
| * @return NRFX_SUCCESS on success, otherwise an error code. |
| */ |
| nrfx_err_t nrfx_wdt_channel_alloc(nrfx_wdt_channel_id * p_channel_id); |
| |
| /** |
| * @brief This function starts watchdog. |
| * |
| * @note After calling this function the watchdog is started, so the user needs to feed all allocated |
| * watchdog channels to avoid reset. At least one watchdog channel has to be allocated. |
| */ |
| void nrfx_wdt_enable(void); |
| |
| /** |
| * @brief This function feeds the watchdog. |
| * |
| * @details Function feeds all allocated watchdog channels. |
| */ |
| void nrfx_wdt_feed(void); |
| |
| /** |
| * @brief This function feeds the invidual watchdog channel. |
| * |
| * @param[in] channel_id ID of watchdog channel. |
| */ |
| void nrfx_wdt_channel_feed(nrfx_wdt_channel_id channel_id); |
| |
| /**@brief Function for returning a requested task address for the wdt driver module. |
| * |
| * @param[in] task One of the peripheral tasks. |
| * |
| * @retval Task address. |
| */ |
| __STATIC_INLINE uint32_t nrfx_wdt_ppi_task_addr(nrf_wdt_task_t task) |
| { |
| return nrf_wdt_task_address_get(task); |
| } |
| |
| /**@brief Function for returning a requested event address for the wdt driver module. |
| * |
| * @param[in] event One of the peripheral events. |
| * |
| * @retval Event address |
| */ |
| __STATIC_INLINE uint32_t nrfx_wdt_ppi_event_addr(nrf_wdt_event_t event) |
| { |
| return nrf_wdt_event_address_get(event); |
| } |
| |
| |
| void nrfx_wdt_irq_handler(void); |
| |
| |
| /** @} */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |
| |