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330 lines
9.3 KiB
C
330 lines
9.3 KiB
C
/*
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* Copyright (c) 2017 - 2019, Nordic Semiconductor ASA
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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
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* modification, 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 must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder 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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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <nrfx.h>
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#if NRFX_CHECK(NRFX_POWER_ENABLED)
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#include <nrfx_power.h>
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#if defined(REGULATORS_PRESENT)
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#include <hal/nrf_regulators.h>
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#endif
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#if NRFX_CHECK(NRFX_CLOCK_ENABLED)
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extern bool nrfx_clock_irq_enabled;
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extern void nrfx_clock_irq_handler(void);
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#endif
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/**
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* @internal
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* @defgroup nrfx_power_internals POWER driver internals
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* @ingroup nrfx_power
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*
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* Internal variables, auxiliary macros and functions of POWER driver.
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* @{
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*/
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/**
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* This variable is used to check whether common POWER_CLOCK common interrupt
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* should be disabled or not if @ref nrfx_clock tries to disable the interrupt.
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*/
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bool nrfx_power_irq_enabled;
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/**
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* @brief The initialization flag
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*/
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#define m_initialized nrfx_power_irq_enabled
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/**
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* @brief The handler of power fail comparator warning event
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*/
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static nrfx_power_pofwarn_event_handler_t m_pofwarn_handler;
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#if NRF_POWER_HAS_SLEEPEVT
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/**
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* @brief The handler of sleep event handler
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*/
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static nrfx_power_sleep_event_handler_t m_sleepevt_handler;
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#endif
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#if NRF_POWER_HAS_USBREG
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/**
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* @brief The handler of USB power events
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*/
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static nrfx_power_usb_event_handler_t m_usbevt_handler;
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#endif
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/** @} */
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nrfx_power_pofwarn_event_handler_t nrfx_power_pof_handler_get(void)
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{
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return m_pofwarn_handler;
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}
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#if NRF_POWER_HAS_USBREG
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nrfx_power_usb_event_handler_t nrfx_power_usb_handler_get(void)
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{
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return m_usbevt_handler;
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}
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#endif
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nrfx_err_t nrfx_power_init(nrfx_power_config_t const * p_config)
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{
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NRFX_ASSERT(p_config);
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if (m_initialized)
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{
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return NRFX_ERROR_ALREADY_INITIALIZED;
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}
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#if NRF_POWER_HAS_DCDCEN_VDDH
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nrf_power_dcdcen_vddh_set(NRF_POWER, p_config->dcdcenhv);
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#endif
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#if NRF_POWER_HAS_DCDCEN
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nrf_power_dcdcen_set(NRF_POWER, p_config->dcdcen);
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#elif defined(REGULATORS_PRESENT)
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nrf_regulators_dcdcen_set(NRF_REGULATORS, p_config->dcdcen);
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#endif
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nrfx_power_clock_irq_init();
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m_initialized = true;
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return NRFX_SUCCESS;
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}
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void nrfx_power_uninit(void)
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{
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NRFX_ASSERT(m_initialized);
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#if NRFX_CHECK(NRFX_CLOCK_ENABLED)
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if (!nrfx_clock_irq_enabled)
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#endif
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{
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NRFX_IRQ_DISABLE(nrfx_get_irq_number(NRF_POWER));
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}
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#if NRF_POWER_HAS_POFCON
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nrfx_power_pof_uninit();
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#endif
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#if NRF_POWER_HAS_SLEEPEVT
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nrfx_power_sleepevt_uninit();
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#endif
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#if NRF_POWER_HAS_USBREG
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nrfx_power_usbevt_uninit();
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#endif
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m_initialized = false;
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}
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#if NRF_POWER_HAS_POFCON
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void nrfx_power_pof_init(nrfx_power_pofwarn_config_t const * p_config)
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{
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NRFX_ASSERT(p_config != NULL);
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nrfx_power_pof_uninit();
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if (p_config->handler != NULL)
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{
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m_pofwarn_handler = p_config->handler;
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}
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}
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void nrfx_power_pof_enable(nrfx_power_pofwarn_config_t const * p_config)
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{
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nrf_power_pofcon_set(NRF_POWER, true, p_config->thr);
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#if NRF_POWER_HAS_VDDH
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nrf_power_pofcon_vddh_set(NRF_POWER, p_config->thrvddh);
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#endif
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if (m_pofwarn_handler != NULL)
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{
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nrf_power_int_enable(NRF_POWER, NRF_POWER_INT_POFWARN_MASK);
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}
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}
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void nrfx_power_pof_disable(void)
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{
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nrf_power_pofcon_set(NRF_POWER, false, NRF_POWER_POFTHR_V27);
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nrf_power_int_disable(NRF_POWER, NRF_POWER_INT_POFWARN_MASK);
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}
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void nrfx_power_pof_uninit(void)
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{
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m_pofwarn_handler = NULL;
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}
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#endif // NRF_POWER_HAS_POFCON
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#if NRF_POWER_HAS_SLEEPEVT
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void nrfx_power_sleepevt_init(nrfx_power_sleepevt_config_t const * p_config)
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{
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NRFX_ASSERT(p_config != NULL);
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nrfx_power_sleepevt_uninit();
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if (p_config->handler != NULL)
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{
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m_sleepevt_handler = p_config->handler;
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}
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}
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void nrfx_power_sleepevt_enable(nrfx_power_sleepevt_config_t const * p_config)
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{
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uint32_t enmask = 0;
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if (p_config->en_enter)
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{
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enmask |= NRF_POWER_INT_SLEEPENTER_MASK;
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nrf_power_event_clear(NRF_POWER, NRF_POWER_EVENT_SLEEPENTER);
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}
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if (p_config->en_exit)
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{
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enmask |= NRF_POWER_INT_SLEEPEXIT_MASK;
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nrf_power_event_clear(NRF_POWER, NRF_POWER_EVENT_SLEEPEXIT);
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}
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nrf_power_int_enable(NRF_POWER, enmask);
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}
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void nrfx_power_sleepevt_disable(void)
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{
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nrf_power_int_disable(NRF_POWER, NRF_POWER_INT_SLEEPENTER_MASK |
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NRF_POWER_INT_SLEEPEXIT_MASK);
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}
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void nrfx_power_sleepevt_uninit(void)
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{
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m_sleepevt_handler = NULL;
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}
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#endif /* NRF_POWER_HAS_SLEEPEVT */
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#if NRF_POWER_HAS_USBREG
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void nrfx_power_usbevt_init(nrfx_power_usbevt_config_t const * p_config)
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{
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NRFX_ASSERT(p_config != NULL);
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nrfx_power_usbevt_uninit();
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if (p_config->handler != NULL)
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{
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m_usbevt_handler = p_config->handler;
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}
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}
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void nrfx_power_usbevt_enable(void)
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{
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nrf_power_int_enable(NRF_POWER, NRF_POWER_INT_USBDETECTED_MASK |
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NRF_POWER_INT_USBREMOVED_MASK |
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NRF_POWER_INT_USBPWRRDY_MASK);
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}
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void nrfx_power_usbevt_disable(void)
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{
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nrf_power_int_disable(NRF_POWER, NRF_POWER_INT_USBDETECTED_MASK |
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NRF_POWER_INT_USBREMOVED_MASK |
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NRF_POWER_INT_USBPWRRDY_MASK);
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}
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void nrfx_power_usbevt_uninit(void)
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{
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m_usbevt_handler = NULL;
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}
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#endif /* NRF_POWER_HAS_USBREG */
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void nrfx_power_irq_handler(void)
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{
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uint32_t enabled = nrf_power_int_enable_get(NRF_POWER);
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#if NRF_POWER_HAS_POFCON
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if ((0 != (enabled & NRF_POWER_INT_POFWARN_MASK)) &&
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nrf_power_event_get_and_clear(NRF_POWER, NRF_POWER_EVENT_POFWARN))
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{
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/* Cannot be null if event is enabled */
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NRFX_ASSERT(m_pofwarn_handler != NULL);
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m_pofwarn_handler();
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}
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#endif
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#if NRF_POWER_HAS_SLEEPEVT
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if ((0 != (enabled & NRF_POWER_INT_SLEEPENTER_MASK)) &&
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nrf_power_event_get_and_clear(NRF_POWER, NRF_POWER_EVENT_SLEEPENTER))
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{
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/* Cannot be null if event is enabled */
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NRFX_ASSERT(m_sleepevt_handler != NULL);
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m_sleepevt_handler(NRFX_POWER_SLEEP_EVT_ENTER);
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}
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if ((0 != (enabled & NRF_POWER_INT_SLEEPEXIT_MASK)) &&
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nrf_power_event_get_and_clear(NRF_POWER, NRF_POWER_EVENT_SLEEPEXIT))
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{
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/* Cannot be null if event is enabled */
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NRFX_ASSERT(m_sleepevt_handler != NULL);
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m_sleepevt_handler(NRFX_POWER_SLEEP_EVT_EXIT);
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}
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#endif
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#if NRF_POWER_HAS_USBREG
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if ((0 != (enabled & NRF_POWER_INT_USBDETECTED_MASK)) &&
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nrf_power_event_get_and_clear(NRF_POWER, NRF_POWER_EVENT_USBDETECTED))
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{
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/* Cannot be null if event is enabled */
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NRFX_ASSERT(m_usbevt_handler != NULL);
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m_usbevt_handler(NRFX_POWER_USB_EVT_DETECTED);
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}
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if ((0 != (enabled & NRF_POWER_INT_USBREMOVED_MASK)) &&
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nrf_power_event_get_and_clear(NRF_POWER, NRF_POWER_EVENT_USBREMOVED))
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{
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/* Cannot be null if event is enabled */
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NRFX_ASSERT(m_usbevt_handler != NULL);
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m_usbevt_handler(NRFX_POWER_USB_EVT_REMOVED);
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}
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if ((0 != (enabled & NRF_POWER_INT_USBPWRRDY_MASK)) &&
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nrf_power_event_get_and_clear(NRF_POWER, NRF_POWER_EVENT_USBPWRRDY))
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{
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/* Cannot be null if event is enabled */
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NRFX_ASSERT(m_usbevt_handler != NULL);
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m_usbevt_handler(NRFX_POWER_USB_EVT_READY);
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}
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#endif
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}
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#if NRFX_CHECK(NRFX_CLOCK_ENABLED)
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/*
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* If both POWER and CLOCK drivers are used, a common IRQ handler function must
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* be used that calls the handlers in these two drivers. This is because these
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* two peripherals share one interrupt.
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* This function is located here, not in a separate nrfx_power_clock.c file,
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* so that it does not end up as the only symbol in a separate object when
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* a library with nrfx is created. In such case, forcing a linker to use this
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* function instead of another one defined as weak will require additional
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* actions, and might be even impossible.
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*/
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void nrfx_power_clock_irq_handler(void)
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{
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nrfx_power_irq_handler();
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nrfx_clock_irq_handler();
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}
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#endif
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#endif // NRFX_CHECK(NRFX_POWER_ENABLED)
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