| /* |
| * Copyright (c) 2017 - 2019, 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 <nrfx.h> |
| |
| #if NRFX_CHECK(NRFX_POWER_ENABLED) |
| |
| #include <nrfx_power.h> |
| #if defined(REGULATORS_PRESENT) |
| #include <hal/nrf_regulators.h> |
| #endif |
| |
| #if NRFX_CHECK(NRFX_CLOCK_ENABLED) |
| extern bool nrfx_clock_irq_enabled; |
| extern void nrfx_clock_irq_handler(void); |
| #endif |
| |
| /** |
| * @internal |
| * @defgroup nrfx_power_internals POWER driver internals |
| * @ingroup nrfx_power |
| * |
| * Internal variables, auxiliary macros and functions of POWER driver. |
| * @{ |
| */ |
| |
| /** |
| * This variable is used to check whether common POWER_CLOCK common interrupt |
| * should be disabled or not if @ref nrfx_clock tries to disable the interrupt. |
| */ |
| |
| bool nrfx_power_irq_enabled; |
| |
| /** |
| * @brief The initialization flag |
| */ |
| |
| #define m_initialized nrfx_power_irq_enabled |
| |
| /** |
| * @brief The handler of power fail comparator warning event |
| */ |
| static nrfx_power_pofwarn_event_handler_t m_pofwarn_handler; |
| |
| #if NRF_POWER_HAS_SLEEPEVT |
| /** |
| * @brief The handler of sleep event handler |
| */ |
| static nrfx_power_sleep_event_handler_t m_sleepevt_handler; |
| #endif |
| |
| #if NRF_POWER_HAS_USBREG |
| /** |
| * @brief The handler of USB power events |
| */ |
| static nrfx_power_usb_event_handler_t m_usbevt_handler; |
| #endif |
| |
| /** @} */ |
| |
| nrfx_power_pofwarn_event_handler_t nrfx_power_pof_handler_get(void) |
| { |
| return m_pofwarn_handler; |
| } |
| |
| #if NRF_POWER_HAS_USBREG |
| nrfx_power_usb_event_handler_t nrfx_power_usb_handler_get(void) |
| { |
| return m_usbevt_handler; |
| } |
| #endif |
| |
| nrfx_err_t nrfx_power_init(nrfx_power_config_t const * p_config) |
| { |
| NRFX_ASSERT(p_config); |
| if (m_initialized) |
| { |
| return NRFX_ERROR_ALREADY_INITIALIZED; |
| } |
| |
| #if NRF_POWER_HAS_VDDH |
| nrf_power_dcdcen_vddh_set(p_config->dcdcenhv); |
| #endif |
| #if NRF_POWER_HAS_DCDCEN |
| nrf_power_dcdcen_set(p_config->dcdcen); |
| #else |
| nrf_regulators_dcdcen_set(NRF_REGULATORS, p_config->dcdcen); |
| #endif |
| |
| nrfx_power_clock_irq_init(); |
| |
| m_initialized = true; |
| return NRFX_SUCCESS; |
| } |
| |
| |
| void nrfx_power_uninit(void) |
| { |
| NRFX_ASSERT(m_initialized); |
| |
| #if NRFX_CHECK(NRFX_CLOCK_ENABLED) |
| if (!nrfx_clock_irq_enabled) |
| #endif |
| { |
| NRFX_IRQ_DISABLE(nrfx_get_irq_number(NRF_POWER)); |
| } |
| #if NRF_POWER_HAS_POFCON |
| nrfx_power_pof_uninit(); |
| #endif |
| #if NRF_POWER_HAS_SLEEPEVT |
| nrfx_power_sleepevt_uninit(); |
| #endif |
| #if NRF_POWER_HAS_USBREG |
| nrfx_power_usbevt_uninit(); |
| #endif |
| m_initialized = false; |
| } |
| |
| #if NRF_POWER_HAS_POFCON |
| void nrfx_power_pof_init(nrfx_power_pofwarn_config_t const * p_config) |
| { |
| NRFX_ASSERT(p_config != NULL); |
| |
| nrfx_power_pof_uninit(); |
| |
| if (p_config->handler != NULL) |
| { |
| m_pofwarn_handler = p_config->handler; |
| } |
| } |
| |
| void nrfx_power_pof_enable(nrfx_power_pofwarn_config_t const * p_config) |
| { |
| nrf_power_pofcon_set(true, p_config->thr); |
| #if NRF_POWER_HAS_VDDH |
| nrf_power_pofcon_vddh_set(p_config->thrvddh); |
| #endif |
| if (m_pofwarn_handler != NULL) |
| { |
| nrf_power_int_enable(NRF_POWER_INT_POFWARN_MASK); |
| } |
| } |
| |
| void nrfx_power_pof_disable(void) |
| { |
| nrf_power_pofcon_set(false, NRF_POWER_POFTHR_V27); |
| nrf_power_int_disable(NRF_POWER_INT_POFWARN_MASK); |
| } |
| |
| void nrfx_power_pof_uninit(void) |
| { |
| m_pofwarn_handler = NULL; |
| } |
| #endif // NRF_POWER_HAS_POFCON |
| |
| #if NRF_POWER_HAS_SLEEPEVT |
| void nrfx_power_sleepevt_init(nrfx_power_sleepevt_config_t const * p_config) |
| { |
| NRFX_ASSERT(p_config != NULL); |
| |
| nrfx_power_sleepevt_uninit(); |
| if (p_config->handler != NULL) |
| { |
| m_sleepevt_handler = p_config->handler; |
| } |
| } |
| |
| void nrfx_power_sleepevt_enable(nrfx_power_sleepevt_config_t const * p_config) |
| { |
| uint32_t enmask = 0; |
| if (p_config->en_enter) |
| { |
| enmask |= NRF_POWER_INT_SLEEPENTER_MASK; |
| nrf_power_event_clear(NRF_POWER_EVENT_SLEEPENTER); |
| } |
| if (p_config->en_exit) |
| { |
| enmask |= NRF_POWER_INT_SLEEPEXIT_MASK; |
| nrf_power_event_clear(NRF_POWER_EVENT_SLEEPEXIT); |
| } |
| nrf_power_int_enable(enmask); |
| } |
| |
| void nrfx_power_sleepevt_disable(void) |
| { |
| nrf_power_int_disable( |
| NRF_POWER_INT_SLEEPENTER_MASK | |
| NRF_POWER_INT_SLEEPEXIT_MASK); |
| } |
| |
| void nrfx_power_sleepevt_uninit(void) |
| { |
| m_sleepevt_handler = NULL; |
| } |
| #endif /* NRF_POWER_HAS_SLEEPEVT */ |
| |
| #if NRF_POWER_HAS_USBREG |
| void nrfx_power_usbevt_init(nrfx_power_usbevt_config_t const * p_config) |
| { |
| NRFX_ASSERT(p_config != NULL); |
| |
| nrfx_power_usbevt_uninit(); |
| if (p_config->handler != NULL) |
| { |
| m_usbevt_handler = p_config->handler; |
| } |
| } |
| |
| void nrfx_power_usbevt_enable(void) |
| { |
| nrf_power_int_enable( |
| NRF_POWER_INT_USBDETECTED_MASK | |
| NRF_POWER_INT_USBREMOVED_MASK | |
| NRF_POWER_INT_USBPWRRDY_MASK); |
| } |
| |
| void nrfx_power_usbevt_disable(void) |
| { |
| nrf_power_int_disable( |
| NRF_POWER_INT_USBDETECTED_MASK | |
| NRF_POWER_INT_USBREMOVED_MASK | |
| NRF_POWER_INT_USBPWRRDY_MASK); |
| } |
| |
| void nrfx_power_usbevt_uninit(void) |
| { |
| m_usbevt_handler = NULL; |
| } |
| #endif /* NRF_POWER_HAS_USBREG */ |
| |
| |
| void nrfx_power_irq_handler(void) |
| { |
| uint32_t enabled = nrf_power_int_enable_get(); |
| |
| #if NRF_POWER_HAS_POFCON |
| if ((0 != (enabled & NRF_POWER_INT_POFWARN_MASK)) && |
| nrf_power_event_get_and_clear(NRF_POWER_EVENT_POFWARN)) |
| { |
| /* Cannot be null if event is enabled */ |
| NRFX_ASSERT(m_pofwarn_handler != NULL); |
| m_pofwarn_handler(); |
| } |
| #endif |
| #if NRF_POWER_HAS_SLEEPEVT |
| if ((0 != (enabled & NRF_POWER_INT_SLEEPENTER_MASK)) && |
| nrf_power_event_get_and_clear(NRF_POWER_EVENT_SLEEPENTER)) |
| { |
| /* Cannot be null if event is enabled */ |
| NRFX_ASSERT(m_sleepevt_handler != NULL); |
| m_sleepevt_handler(NRFX_POWER_SLEEP_EVT_ENTER); |
| } |
| if ((0 != (enabled & NRF_POWER_INT_SLEEPEXIT_MASK)) && |
| nrf_power_event_get_and_clear(NRF_POWER_EVENT_SLEEPEXIT)) |
| { |
| /* Cannot be null if event is enabled */ |
| NRFX_ASSERT(m_sleepevt_handler != NULL); |
| m_sleepevt_handler(NRFX_POWER_SLEEP_EVT_EXIT); |
| } |
| #endif |
| #if NRF_POWER_HAS_USBREG |
| if ((0 != (enabled & NRF_POWER_INT_USBDETECTED_MASK)) && |
| nrf_power_event_get_and_clear(NRF_POWER_EVENT_USBDETECTED)) |
| { |
| /* Cannot be null if event is enabled */ |
| NRFX_ASSERT(m_usbevt_handler != NULL); |
| m_usbevt_handler(NRFX_POWER_USB_EVT_DETECTED); |
| } |
| if ((0 != (enabled & NRF_POWER_INT_USBREMOVED_MASK)) && |
| nrf_power_event_get_and_clear(NRF_POWER_EVENT_USBREMOVED)) |
| { |
| /* Cannot be null if event is enabled */ |
| NRFX_ASSERT(m_usbevt_handler != NULL); |
| m_usbevt_handler(NRFX_POWER_USB_EVT_REMOVED); |
| } |
| if ((0 != (enabled & NRF_POWER_INT_USBPWRRDY_MASK)) && |
| nrf_power_event_get_and_clear(NRF_POWER_EVENT_USBPWRRDY)) |
| { |
| /* Cannot be null if event is enabled */ |
| NRFX_ASSERT(m_usbevt_handler != NULL); |
| m_usbevt_handler(NRFX_POWER_USB_EVT_READY); |
| } |
| #endif |
| } |
| |
| #if NRFX_CHECK(NRFX_CLOCK_ENABLED) |
| /* |
| * If both POWER and CLOCK drivers are used, a common IRQ handler function must |
| * be used that calls the handlers in these two drivers. This is because these |
| * two peripherals share one interrupt. |
| * This function is located here, not in a separate nrfx_power_clock.c file, |
| * so that it does not end up as the only symbol in a separate object when |
| * a library with nrfx is created. In such case, forcing a linker to use this |
| * function instead of another one defined as weak will require additional |
| * actions, and might be even impossible. |
| */ |
| void nrfx_power_clock_irq_handler(void) |
| { |
| nrfx_power_irq_handler(); |
| nrfx_clock_irq_handler(); |
| } |
| #endif |
| |
| #endif // NRFX_CHECK(NRFX_POWER_ENABLED) |