diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/src/nrfx_wdt.c')
-rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/src/nrfx_wdt.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/src/nrfx_wdt.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/src/nrfx_wdt.c new file mode 100644 index 0000000..d4d33b1 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/src/nrfx_wdt.c @@ -0,0 +1,153 @@ +/** + * Copyright (c) 2015 - 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, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, 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 Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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 <nrfx.h> + +#if NRFX_CHECK(NRFX_WDT_ENABLED) +#include <nrfx_wdt.h> + +#define NRFX_LOG_MODULE WDT +#include <nrfx_log.h> + + +/**@brief WDT event handler. */ +static nrfx_wdt_event_handler_t m_wdt_event_handler; + +/**@brief WDT state. */ +static nrfx_drv_state_t m_state; + +/**@brief WDT alloc table. */ +static uint32_t m_alloc_index; + +/**@brief WDT interrupt handler. */ +void nrfx_wdt_irq_handler(void) +{ + if (nrf_wdt_int_enable_check(NRF_WDT_INT_TIMEOUT_MASK) == true) + { + nrf_wdt_event_clear(NRF_WDT_EVENT_TIMEOUT); + m_wdt_event_handler(); + } +} + + +nrfx_err_t nrfx_wdt_init(nrfx_wdt_config_t const * p_config, + nrfx_wdt_event_handler_t wdt_event_handler) +{ + NRFX_ASSERT(p_config); + NRFX_ASSERT(wdt_event_handler != NULL); + nrfx_err_t err_code; + m_wdt_event_handler = wdt_event_handler; + + if (m_state == NRFX_DRV_STATE_UNINITIALIZED) + { + m_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_config->behaviour); + + nrf_wdt_reload_value_set((p_config->reload_value * 32768) / 1000); + + NRFX_IRQ_PRIORITY_SET(WDT_IRQn, p_config->interrupt_priority); + NRFX_IRQ_ENABLE(WDT_IRQn); + + 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(void) +{ + NRFX_ASSERT(m_alloc_index != 0); + NRFX_ASSERT(m_state == NRFX_DRV_STATE_INITIALIZED); + nrf_wdt_int_enable(NRF_WDT_INT_TIMEOUT_MASK); + nrf_wdt_task_trigger(NRF_WDT_TASK_START); + m_state = NRFX_DRV_STATE_POWERED_ON; + NRFX_LOG_INFO("Enabled."); +} + + +void nrfx_wdt_feed(void) +{ + NRFX_ASSERT(m_state == NRFX_DRV_STATE_POWERED_ON); + for (uint32_t i = 0; i < m_alloc_index; i++) + { + nrf_wdt_reload_request_set((nrf_wdt_rr_register_t)(NRF_WDT_RR0 + i)); + } +} + +nrfx_err_t nrfx_wdt_channel_alloc(nrfx_wdt_channel_id * p_channel_id) +{ + nrfx_err_t result; + NRFX_ASSERT(p_channel_id); + NRFX_ASSERT(m_state == NRFX_DRV_STATE_INITIALIZED); + + NRFX_CRITICAL_SECTION_ENTER(); + if (m_alloc_index < NRF_WDT_CHANNEL_NUMBER) + { + *p_channel_id = (nrfx_wdt_channel_id)(NRF_WDT_RR0 + m_alloc_index); + m_alloc_index++; + nrf_wdt_reload_request_enable(*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_channel_id channel_id) +{ + NRFX_ASSERT(m_state == NRFX_DRV_STATE_POWERED_ON); + nrf_wdt_reload_request_set(channel_id); +} + +#endif // NRFX_CHECK(NRFX_WDT_ENABLED) |