105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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 <libpayload.h>
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void console_init(void)
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{
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#ifdef CONFIG_VGA_CONSOLE
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vga_init();
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#endif
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#ifdef CONFIG_SERIAL_CONSOLE
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serial_init();
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#endif
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}
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static void device_putchar(unsigned char c)
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{
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#ifdef CONFIG_VGA_CONSOLE
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vga_putchar(0x700| c);
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#endif
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#ifdef CONFIG_SERIAL_CONSOLE
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serial_putchar(c);
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#endif
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}
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int putchar(int c)
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{
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c &= 0xff;
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if (c == '\n')
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device_putchar('\r');
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device_putchar(c);
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return c;
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}
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int puts(const char *s)
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{
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int n = 0;
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while (*s) {
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putchar(*s++);
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n++;
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}
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putchar('\n');
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return n+1;
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}
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int havekey(void)
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{
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#ifdef CONFIG_SERIAL_CONSOLE
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if (serial_havechar())
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return 1;
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#endif
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#ifdef CONFIG_PC_KEYBOARD
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if (keyboard_havechar())
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return 1;
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#endif
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return 0;
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}
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/* This returns an ascii value - the two getchar functions
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cook the respective input from the device
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*/
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int getchar(void)
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{
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while (1) {
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#ifdef CONFIG_SERIAL_CONSOLE
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if (serial_havechar())
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return serial_getchar();
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#endif
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#ifdef CONFIG_PC_KEYBOARD
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if (keyboard_havechar())
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return keyboard_getchar();
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#endif
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}
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}
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