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https://gitlab.rtems.org/rtems/rtos/rtems.git
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119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (C) 2013, 2017 embedded brains GmbH
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*
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* Copyright (C) 2019 DornerWorks
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*
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* Written by Jeff Kubascik <jeff.kubascik@dornerworks.com>
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* and Josh Whitehead <josh.whitehead@dornerworks.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <rtems/console.h>
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#include <rtems/bspIo.h>
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#include <rtems/sysinit.h>
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#include <rtems/termiostypes.h>
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#include <bsp/irq.h>
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#include <dev/serial/zynq-uart.h>
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#include <dev/serial/zynq-uart-regs.h>
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#include <bspopts.h>
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static zynq_uart_context zynqmp_uart_instances[2] = {
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{
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.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER( "Zynq UART 0" ),
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.regs = (volatile zynq_uart *) ZYNQ_UART_0_BASE_ADDR,
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.irq = ZYNQMP_IRQ_UART_0
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}, {
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.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER( "Zynq UART 1" ),
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.regs = (volatile zynq_uart *) ZYNQ_UART_1_BASE_ADDR,
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.irq = ZYNQMP_IRQ_UART_1
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}
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};
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rtems_status_code console_initialize(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *arg
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)
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{
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size_t i;
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for (i = 0; i < RTEMS_ARRAY_SIZE(zynqmp_uart_instances); ++i) {
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char uart[] = "/dev/ttySX";
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uart[sizeof(uart) - 2] = (char) ('0' + i);
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rtems_termios_device_install(
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&uart[0],
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&zynq_uart_handler,
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NULL,
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&zynqmp_uart_instances[i].base
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);
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if (i == BSP_CONSOLE_MINOR) {
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link(&uart[0], CONSOLE_DEVICE_NAME);
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}
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}
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return RTEMS_SUCCESSFUL;
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}
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void zynqmp_debug_console_flush(void)
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{
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zynq_uart_reset_tx_flush(zynqmp_uart_instances[BSP_CONSOLE_MINOR].regs);
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}
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static void zynqmp_debug_console_out(char c)
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{
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zynq_uart_write_char_polled(zynqmp_uart_instances[BSP_CONSOLE_MINOR].regs, c);
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}
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static void zynqmp_debug_console_init(void)
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{
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zynq_uart_initialize(zynqmp_uart_instances[BSP_CONSOLE_MINOR].regs);
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BSP_output_char = zynqmp_debug_console_out;
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}
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static void zynqmp_debug_console_early_init(char c)
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{
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zynq_uart_initialize(zynqmp_uart_instances[BSP_CONSOLE_MINOR].regs);
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zynqmp_debug_console_out(c);
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}
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static int zynqmp_debug_console_in(void)
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{
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return zynq_uart_read_char_polled(zynqmp_uart_instances[BSP_CONSOLE_MINOR].regs);
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}
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BSP_output_char_function_type BSP_output_char = zynqmp_debug_console_early_init;
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BSP_polling_getchar_function_type BSP_poll_char = zynqmp_debug_console_in;
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RTEMS_SYSINIT_ITEM(
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zynqmp_debug_console_init,
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RTEMS_SYSINIT_BSP_START,
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RTEMS_SYSINIT_ORDER_LAST_BUT_5
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);
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