142 lines
5.0 KiB
C
142 lines
5.0 KiB
C
/**
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* Copyright (c) 2017 - 2020, Nordic Semiconductor ASA
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*
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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 modification,
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* 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, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA 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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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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 SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "nrf_drv_uart.h"
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#ifdef UARTE_PRESENT
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#define INSTANCE_COUNT UARTE_COUNT
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#else
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#define INSTANCE_COUNT UART_COUNT
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#endif
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static nrf_uart_event_handler_t m_handlers[INSTANCE_COUNT];
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static void * m_contexts[INSTANCE_COUNT];
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#if defined(UARTE_PRESENT) && defined(UART_PRESENT)
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uint8_t nrf_drv_uart_use_easy_dma[INSTANCE_COUNT];
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#endif
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#if defined(NRF_DRV_UART_WITH_UARTE)
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static void uarte_evt_handler(nrfx_uarte_event_t const * p_event,
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void * p_context)
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{
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uint32_t inst_idx = (uint32_t)p_context;
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nrf_drv_uart_event_t event =
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{
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.type = (nrf_drv_uart_evt_type_t)p_event->type,
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.data =
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{
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.error =
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{
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.rxtx =
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{
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.p_data = p_event->data.error.rxtx.p_data,
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.bytes = p_event->data.error.rxtx.bytes,
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},
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.error_mask = p_event->data.error.error_mask,
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}
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}
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};
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m_handlers[inst_idx](&event, m_contexts[inst_idx]);
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}
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#endif // defined(NRF_DRV_UART_WITH_UARTE)
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#if defined(NRF_DRV_UART_WITH_UART)
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static void uart_evt_handler(nrfx_uart_event_t const * p_event,
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void * p_context)
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{
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uint32_t inst_idx = (uint32_t)p_context;
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nrf_drv_uart_event_t event =
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{
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.type = (nrf_drv_uart_evt_type_t)p_event->type,
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.data =
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{
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.error =
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{
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.rxtx =
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{
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.p_data = p_event->data.error.rxtx.p_data,
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.bytes = p_event->data.error.rxtx.bytes,
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},
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.error_mask = p_event->data.error.error_mask,
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}
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}
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};
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m_handlers[inst_idx](&event, m_contexts[inst_idx]);
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}
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#endif // defined(NRF_DRV_UART_WITH_UART)
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ret_code_t nrf_drv_uart_init(nrf_drv_uart_t const * p_instance,
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nrf_drv_uart_config_t const * p_config,
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nrf_uart_event_handler_t event_handler)
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{
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uint32_t inst_idx = p_instance->inst_idx;
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m_handlers[inst_idx] = event_handler;
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m_contexts[inst_idx] = p_config->p_context;
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#if defined(NRF_DRV_UART_WITH_UARTE) && defined(NRF_DRV_UART_WITH_UART)
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#ifdef NRF52840_XXAA
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if (inst_idx == 1)
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{
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ASSERT(p_config->use_easy_dma);
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}
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#endif
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nrf_drv_uart_use_easy_dma[inst_idx] = p_config->use_easy_dma;
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#endif
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nrf_drv_uart_config_t config = *p_config;
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config.p_context = (void *)inst_idx;
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ret_code_t result = 0;
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if (NRF_DRV_UART_USE_UARTE)
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{
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result = nrfx_uarte_init(&p_instance->uarte,
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(nrfx_uarte_config_t const *)&config,
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event_handler ? uarte_evt_handler : NULL);
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}
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else if (NRF_DRV_UART_USE_UART)
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{
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result = nrfx_uart_init(&p_instance->uart,
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(nrfx_uart_config_t const *)&config,
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event_handler ? uart_evt_handler : NULL);
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}
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return result;
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}
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