forked from Imagelibrary/rtems
86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup RTEMSBSPsMicroblaze
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*
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* @brief MicroBlaze debug IO support
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*/
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/*
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* Copyright (C) 2015 Hesham Almatary
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* Copyright (C) 2021 On-Line Applications Research Corporation (OAR)
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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
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* 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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*
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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 OWNER 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 <dev/serial/uartlite_l.h>
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#include <rtems/bspIo.h>
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#include <bsp.h>
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#include <bspopts.h>
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static uint32_t mblaze_uart_base = 0;
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static void output_char( char c )
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{
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if (mblaze_uart_base == 0 ) {
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mblaze_uart_base = try_get_prop_from_device_tree(
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"xlnx,xps-uartlite-1.00.a",
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"reg",
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BSP_MICROBLAZE_FPGA_UART_BASE
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);
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}
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if ( c == '\n' ) {
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XUartLite_SendByte( mblaze_uart_base, '\r' );
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}
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XUartLite_SendByte( mblaze_uart_base, c );
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}
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static int xUartLite_RecvByte( int minor )
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{
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if (mblaze_uart_base == 0 ) {
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mblaze_uart_base = try_get_prop_from_device_tree(
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"xlnx,xps-uartlite-1.00.a",
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"reg",
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BSP_MICROBLAZE_FPGA_UART_BASE
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);
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}
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if ( XUartLite_IsReceiveEmpty( mblaze_uart_base ) ) {
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return -1;
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}
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return XUartLite_ReadReg( mblaze_uart_base, XUL_RX_FIFO_OFFSET );
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}
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static int get_char( void )
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{
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return xUartLite_RecvByte( 0 );
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}
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BSP_output_char_function_type BSP_output_char = output_char;
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BSP_polling_getchar_function_type BSP_poll_char = get_char;
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