mirror of
https://github.com/espressif/openthread.git
synced 2026-07-11 14:50:18 +00:00
Jonathan Hui
120 lines
3.7 KiB
C
120 lines
3.7 KiB
C
/*
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* Copyright (c) 2016, The OpenThread Authors.
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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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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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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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* 3. Neither the name of the copyright holder nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this 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 <openthread/platform/uart.h>
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#include "platform-da15000.h"
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#include "hw_gpio.h"
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#include "hw_uart.h"
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static bool sUartWriteDone = false;
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static bool sUartReadDone = false;
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static char * sInitBuf = NULL;
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static uint8_t sUartBuf;
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static void UartSignalWrite(void *p, uint16_t transferred)
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{
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if (transferred)
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{
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sUartWriteDone = true;
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}
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}
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static void UartSignalRead(void *p, uint16_t transferred)
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{
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if (transferred)
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{
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sUartReadDone = true;
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}
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}
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otError otPlatUartEnable(void)
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{
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// clang-format off
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uart_config_ex uart_init =
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{
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.baud_rate = HW_UART_BAUDRATE_115200,
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.data = HW_UART_DATABITS_8,
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.parity = HW_UART_PARITY_NONE,
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.stop = HW_UART_STOPBITS_1,
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.auto_flow_control = 0,
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.use_fifo = 1,
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.use_dma = 1,
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.tx_fifo_tr_lvl = 0,
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.rx_fifo_tr_lvl = 0,
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.tx_dma_channel = HW_DMA_CHANNEL_3,
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.rx_dma_channel = HW_DMA_CHANNEL_2,
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};
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// clang-format on
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hw_uart_init_ex(HW_UART2, &uart_init);
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hw_gpio_set_pin_function(HW_GPIO_PORT_1, HW_GPIO_PIN_3, HW_GPIO_MODE_OUTPUT, HW_GPIO_FUNC_UART2_TX);
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hw_gpio_set_pin_function(HW_GPIO_PORT_2, HW_GPIO_PIN_3, HW_GPIO_MODE_OUTPUT, HW_GPIO_FUNC_UART2_RX);
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hw_gpio_set_pin_function(HW_GPIO_PORT_1, HW_GPIO_PIN_5, HW_GPIO_MODE_OUTPUT, HW_GPIO_FUNC_GPIO);
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hw_uart_receive(HW_UART2, &sUartBuf, 1, UartSignalRead, NULL);
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return OT_ERROR_NONE;
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}
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otError otPlatUartDisable(void)
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{
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return OT_ERROR_NONE;
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}
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void da15000UartProcess(void)
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{
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if (sUartReadDone)
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{
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otPlatUartReceived(&sUartBuf, 1);
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sUartReadDone = false;
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hw_uart_receive(HW_UART2, &sUartBuf, 1, UartSignalRead, NULL);
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}
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if (sUartWriteDone)
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{
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sUartWriteDone = false;
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otPlatUartSendDone();
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}
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if (sInitBuf == NULL)
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{
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sInitBuf = "\n";
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otPlatUartReceived((uint8_t *)sInitBuf, 1);
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}
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}
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otError otPlatUartSend(const uint8_t *aBuf, uint16_t aBufLength)
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{
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hw_uart_send(HW_UART2, aBuf, aBufLength, UartSignalWrite, NULL);
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return OT_ERROR_NONE;
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}
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