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150 lines
5.5 KiB
C
150 lines
5.5 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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#ifndef NRFX_PRS_H__
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#define NRFX_PRS_H__
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#include <nrfx.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @defgroup nrfx_prs Peripheral Resource Sharing (PRS)
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* @{
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* @ingroup nrfx
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*
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* @brief Peripheral Resource Sharing interface (PRS).
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*/
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#if defined(NRF51)
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// SPI0, TWI0
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#define NRFX_PRS_BOX_0_ADDR NRF_SPI0
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// SPI1, SPIS1, TWI1
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#define NRFX_PRS_BOX_1_ADDR NRF_SPI1
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#elif defined(NRF52810_XXAA)
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// TWIM0, TWIS0, TWI0
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#define NRFX_PRS_BOX_0_ADDR NRF_TWIM0
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// SPIM0, SPIS0, SPI0
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#define NRFX_PRS_BOX_1_ADDR NRF_SPIM0
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// UARTE0, UART0
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#define NRFX_PRS_BOX_2_ADDR NRF_UARTE0
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#elif defined(NRF52811_XXAA)
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// TWIM0, TWIS0, TWI0, SPIM1, SPIS1, SPI1
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#define NRFX_PRS_BOX_0_ADDR NRF_TWIM0
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// SPIM0, SPIS0, SPI0
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#define NRFX_PRS_BOX_1_ADDR NRF_SPIM0
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// UART0, UARTE0
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#define NRFX_PRS_BOX_2_ADDR NRF_UART0
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#elif defined(NRF52832_XXAA) || defined(NRF52832_XXAB) || \
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defined(NRF52833_XXAA) || defined(NRF52840_XXAA)
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// SPIM0, SPIS0, TWIM0, TWIS0, SPI0, TWI0
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#define NRFX_PRS_BOX_0_ADDR NRF_SPIM0
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// SPIM1, SPIS1, TWIM1, TWIS1, SPI1, TWI1
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#define NRFX_PRS_BOX_1_ADDR NRF_SPIM1
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// SPIM2, SPIS2, SPI2
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#define NRFX_PRS_BOX_2_ADDR NRF_SPIM2
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// COMP, LPCOMP
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#define NRFX_PRS_BOX_3_ADDR NRF_COMP
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// UARTE0, UART0
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#define NRFX_PRS_BOX_4_ADDR NRF_UARTE0
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#elif defined(NRF5340_XXAA_APPLICATION)
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// SPIM0, SPIS0, TWIM0, TWIS0, UARTE0
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#define NRFX_PRS_BOX_0_ADDR NRF_UARTE0
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// SPIM1, SPIS1, TWIM1, TWIS1, UARTE1
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#define NRFX_PRS_BOX_1_ADDR NRF_UARTE1
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// COMP, LPCOMP
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#define NRFX_PRS_BOX_2_ADDR NRF_COMP
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#elif defined(NRF5340_XXAA_NETWORK)
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// SPIM0, SPIS0, TWIM0, TWIS0, UARTE0
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#define NRFX_PRS_BOX_0_ADDR NRF_UARTE0
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#elif defined(NRF9160_XXAA)
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// UARTE0, SPIM0, SPIS0, TWIM0, TWIS0
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#define NRFX_PRS_BOX_0_ADDR NRF_UARTE0
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// UARTE1, SPIM1, SPIS1, TWIM1, TWIS1
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#define NRFX_PRS_BOX_1_ADDR NRF_UARTE1
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// UARTE2, SPIM2, SPIS2, TWIM2, TWIS2
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#define NRFX_PRS_BOX_2_ADDR NRF_UARTE2
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// UARTE3, SPIM3, SPIS3, TWIM3, TWIS3
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#define NRFX_PRS_BOX_3_ADDR NRF_UARTE3
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#else
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#error "Unknown device."
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#endif
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/**
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* @brief Function for acquiring shared peripheral resources associated with
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* the specified peripheral.
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*
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* Certain resources and registers are shared among peripherals that have
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* the same ID (for example: SPI0, SPIM0, SPIS0, TWI0, TWIM0, and TWIS0 in
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* nRF52832). Only one of them can be utilized at a given time. This function
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* reserves proper resources to be used by the specified peripheral.
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* If NRFX_PRS_ENABLED is set to a non-zero value, IRQ handlers for peripherals
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* that are sharing resources with others are implemented by the @ref nrfx_prs
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* module instead of individual drivers. The drivers must then specify their
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* interrupt handling routines and register them by using this function.
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*
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* @param[in] p_base_addr Requested peripheral base pointer.
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* @param[in] irq_handler Interrupt handler to register.
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*
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* @retval NRFX_SUCCESS If resources were acquired successfully or the
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* specified peripheral is not handled by the PRS
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* subsystem and there is no need to acquire resources
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* for it.
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* @retval NRFX_ERROR_BUSY If resources were already acquired.
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*/
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nrfx_err_t nrfx_prs_acquire(void const * p_base_addr,
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nrfx_irq_handler_t irq_handler);
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/**
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* @brief Function for releasing shared resources reserved previously by
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* @ref nrfx_prs_acquire() for the specified peripheral.
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*
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* @param[in] p_base_addr Released peripheral base pointer.
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*/
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void nrfx_prs_release(void const * p_base_addr);
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/** @} */
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void nrfx_prs_box_0_irq_handler(void);
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void nrfx_prs_box_1_irq_handler(void);
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void nrfx_prs_box_2_irq_handler(void);
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void nrfx_prs_box_3_irq_handler(void);
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void nrfx_prs_box_4_irq_handler(void);
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#ifdef __cplusplus
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}
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#endif
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#endif // NRFX_PRS_H__
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