xilinx-zynq/console/console-init.c

0001 /*
0002  * SPDX-License-Identifier: BSD-2-Clause
0003  *
0004  * Copyright (C) 2013, 2017 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 <rtems/console.h>
0029 #include <rtems/termiostypes.h>
0030
0031 #include <bsp.h>
0032 #include <bsp/bootcard.h>
0033 #include <bsp/irq.h>
0034 #include <dev/serial/zynq-uart.h>
0035 #include <dev/serial/zynq-uart-regs.h>
0036
0037 static zynq_uart_context zynq_uart_instances[2] = {
0038   {
0039     .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER( "Zynq UART 0" ),
0040     .regs = (volatile zynq_uart *) ZYNQ_UART_0_BASE_ADDR,
0041     .irq = ZYNQ_IRQ_UART_0
0042   }, {
0043     .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER( "Zynq UART 1" ),
0044     .regs = (volatile zynq_uart *) ZYNQ_UART_1_BASE_ADDR,
0045     .irq = ZYNQ_IRQ_UART_1
0046   }
0047 };
0048
0049 rtems_status_code console_initialize(
0050   rtems_device_major_number major,
0051   rtems_device_minor_number minor,
0052   void *arg
0053 )
0054 {
0055   size_t i;
0056
0057   rtems_termios_initialize();
0058
0059   for (i = 0; i < RTEMS_ARRAY_SIZE(zynq_uart_instances); ++i) {
0060     zynq_uart_context *ctx = &zynq_uart_instances[i];
0061     char uart[] = "/dev/ttySX";
0062
0063     uart[sizeof(uart) - 2] = (char) ('0' + i);
0064     rtems_termios_device_install(
0065       &uart[0],
0066       &zynq_uart_handler,
0067       NULL,
0068       &ctx->base
0069     );
0070
0071     if (ctx->regs == (zynq_uart *) ZYNQ_UART_KERNEL_IO_BASE_ADDR) {
0072       link(&uart[0], CONSOLE_DEVICE_NAME);
0073     }
0074   }
0075
0076   return RTEMS_SUCCESSFUL;
0077 }