dev/serial/console-output-char.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  * Copyright (c) 2013 embedded brains GmbH & Co. KG
0005  *
0006  * Redistribution and use in source and binary forms, with or without
0007  * modification, are permitted provided that the following conditions
0008  * are met:
0009  * 1. Redistributions of source code must retain the above copyright
0010  *    notice, this list of conditions and the following disclaimer.
0011  * 2. Redistributions in binary form must reproduce the above copyright
0012  *    notice, this list of conditions and the following disclaimer in the
0013  *    documentation and/or other materials provided with the distribution.
0014  *
0015  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0016  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0017  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0018  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0019  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0020  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0021  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0023  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0024  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0025  * POSSIBILITY OF SUCH DAMAGE.
0026  */
0027
0028 #include <libchip/serial.h>
0029
0030 #include <rtems/bspIo.h>
0031
0032 static void output_char(char c)
0033 {
0034   int minor = (int) Console_Port_Minor;
0035   const console_tbl *ct = Console_Port_Tbl != NULL ?
0036     Console_Port_Tbl[minor] : &Console_Configuration_Ports[minor];
0037   const console_fns *cf = ct->pDeviceFns;
0038
0039   (*cf->deviceWritePolled)(minor, c);
0040 }
0041
0042 static void output_char_init(char c)
0043 {
0044   if (Console_Port_Tbl == NULL) {
0045     int minor = (int) Console_Port_Minor;
0046     const console_fns *cf = Console_Configuration_Ports[minor].pDeviceFns;
0047
0048     (*cf->deviceInitialize)(minor);
0049   }
0050
0051   BSP_output_char = output_char;
0052   output_char(c);
0053 }
0054
0055 BSP_output_char_function_type BSP_output_char = output_char_init;
0056
0057 BSP_polling_getchar_function_type BSP_poll_char = NULL;