forked from Imagelibrary/rtems
53 lines
964 B
C
53 lines
964 B
C
/**
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* @file
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*
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* @ingroup bsp_kit
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*
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* @brief Output character implementation for standard UARTs.
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*/
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/*
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* Copyright (c) 2010-2011 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Obere Lagerstr. 30
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#include <rtems/bspIo.h>
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#include <bsp/uart-output-char.h>
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static void uart_output_raw(char c)
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{
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while ((CONSOLE_LSR & CONSOLE_LSR_THRE) == 0) {
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/* Wait */
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}
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CONSOLE_THR = c;
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}
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static void uart_output(char c)
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{
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uart_output_raw(c);
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}
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static int uart_input(void)
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{
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if ((CONSOLE_LSR & CONSOLE_LSR_RDR) != 0) {
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return CONSOLE_RBR;
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} else {
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return -1;
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}
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}
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BSP_output_char_function_type BSP_output_char = uart_output;
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BSP_polling_getchar_function_type BSP_poll_char = uart_input;
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