xen/console/console.c

0001 /*
0002  * SPDX-License-Identifier: BSD-2-Clause
0003  *
0004  * Copyright (C) 2019 DornerWorks
0005  * Written by Jeff Kubascik <jeff.kubascik@dornerworks.com>
0006  *
0007  * Redistribution and use in source and binary forms, with or without
0008  * modification, are permitted provided that the following conditions
0009  * are met:
0010  * 1. Redistributions of source code must retain the above copyright
0011  *    notice, this list of conditions and the following disclaimer.
0012  * 2. Redistributions in binary form must reproduce the above copyright
0013  *    notice, this list of conditions and the following disclaimer in the
0014  *    documentation and/or other materials provided with the distribution.
0015  *
0016  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0017  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0018  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0019  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0020  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0021  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0022  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0023  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0024  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0025  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0026  * POSSIBILITY OF SUCH DAMAGE.
0027  */
0028
0029 #include <rtems/bspIo.h>
0030
0031 #include <bsp.h>
0032 #include <dev/serial/arm-pl011.h>
0033 #include <bsp/console-termios.h>
0034 #include <bsp/irq-generic.h>
0035
0036 #include <bspopts.h>
0037
0038 arm_pl011_context xen_vpl011_context = {
0039   .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("PL011"),
0040   .regs = (arm_pl011_uart *) BSP_XEN_VPL011_BASE,
0041   .irq = GUEST_VPL011_SPI,
0042   .initial_baud = 115200,
0043   .clock = 24000000
0044 };
0045
0046 const console_device console_device_table[] = {
0047   {
0048     .device_file = "/dev/ttyS0",
0049     .probe = console_device_probe_default,
0050     .handler = &arm_pl011_fns,
0051     .context = &xen_vpl011_context.base
0052   }
0053 };
0054
0055 const size_t console_device_count = RTEMS_ARRAY_SIZE(console_device_table);
0056
0057 static void output_char( char c )
0058 {
0059   arm_pl011_write_polled(&xen_vpl011_context.base, c);
0060 }
0061
0062 BSP_output_char_function_type BSP_output_char = output_char;
0063
0064 BSP_polling_getchar_function_type BSP_poll_char = NULL;