forked from Imagelibrary/rtems
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/*
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* Copyright (c) 2018.
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* Amaan Cheval <amaan.cheval@gmail.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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* 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 AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <libchip/ns16550.h>
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#include <rtems/bspIo.h>
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#include <bsp.h>
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#include <bsp/console-termios.h>
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#include <rtems/score/cpuimpl.h>
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static uint8_t amd64_uart_get_register(uintptr_t addr, uint8_t i)
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{
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return inport_byte(addr + i);
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}
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static void amd64_uart_set_register(uintptr_t addr, uint8_t i, uint8_t val)
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{
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outport_byte(addr + i, val);
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}
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static ns16550_context amd64_uart_context = {
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.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("UART"),
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.get_reg = amd64_uart_get_register,
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.set_reg = amd64_uart_set_register,
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.port = (uintptr_t) COM1_BASE_IO,
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.initial_baud = COM1_CLOCK_RATE
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};
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/*
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* XXX: We should use the interrupt based handler once interrupts are supported
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*/
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const console_device console_device_table[] = {
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{
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.device_file = "/dev/console",
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.probe = console_device_probe_default,
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.handler = &ns16550_handler_polled,
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.context = &amd64_uart_context.base
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}
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};
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const size_t console_device_count = RTEMS_ARRAY_SIZE(console_device_table);
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static void output_char(char c)
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{
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rtems_termios_device_context *ctx = console_device_table[0].context;
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ns16550_polled_putchar(ctx, c);
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}
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BSP_output_char_function_type BSP_output_char = output_char;
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BSP_polling_getchar_function_type BSP_poll_char = NULL;
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