source: rtems/bsps/arm/xilinx-zynq/console/debug-console.c @ c15842d

Last change on this file since c15842d was c15842d, checked in by Sebastian Huber <sebastian.huber@…>, on 06/28/22 at 14:16:57

bsps/xilinx-zynq: Init debug console only once

Initialize the debug console only once during early system initialization.

  • Property mode set to 100644
File size: 2.4 KB
Line 
1/*
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (C) 2013, 2017 embedded brains GmbH
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <rtems/bspIo.h>
29#include <rtems/sysinit.h>
30
31#include <bsp.h>
32#include <dev/serial/zynq-uart.h>
33
34#include <bspopts.h>
35
36static void zynq_debug_console_out(char c)
37{
38  rtems_termios_device_context *base =
39    &zynq_uart_instances[BSP_CONSOLE_MINOR].base;
40
41  zynq_uart_write_polled(base, c);
42}
43
44static void zynq_debug_console_init(void)
45{
46  rtems_termios_device_context *base =
47    &zynq_uart_instances[BSP_CONSOLE_MINOR].base;
48
49  zynq_uart_initialize(base);
50  BSP_output_char = zynq_debug_console_out;
51}
52
53static void zynq_debug_console_early_init(char c)
54{
55  zynq_debug_console_init();
56  zynq_debug_console_out(c);
57}
58
59static int zynq_debug_console_in(void)
60{
61  rtems_termios_device_context *base =
62    &zynq_uart_instances[BSP_CONSOLE_MINOR].base;
63
64  return zynq_uart_read_polled(base);
65}
66
67BSP_output_char_function_type BSP_output_char = zynq_debug_console_early_init;
68
69BSP_polling_getchar_function_type BSP_poll_char = zynq_debug_console_in;
70
71RTEMS_SYSINIT_ITEM(
72  zynq_debug_console_init,
73  RTEMS_SYSINIT_BSP_START,
74  RTEMS_SYSINIT_ORDER_LAST_BUT_5
75);
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