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97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
/*
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* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* @file
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*
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* Standard Input/Output
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include "bootapp.h"
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#include "wimboot.h"
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#include "efi.h"
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/**
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* Print character to console
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*
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* @v character Character to print
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*/
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int putchar ( int character ) {
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EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *conout;
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struct bootapp_callback_params params;
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wchar_t wbuf[2];
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/* Convert LF to CR,LF */
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if ( character == '\n' )
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putchar ( '\r' );
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/* Print character to bochs debug port */
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__asm__ __volatile__ ( "outb %b0, $0xe9"
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: : "a" ( character ) );
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/* Print character to EFI/BIOS console as applicable */
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if ( efi_systab ) {
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conout = efi_systab->ConOut;
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wbuf[0] = character;
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wbuf[1] = 0;
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conout->OutputString ( conout, wbuf );
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} else {
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memset ( ¶ms, 0, sizeof ( params ) );
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params.vector.interrupt = 0x10;
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params.eax = ( 0x0e00 | character );
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params.ebx = 0x0007;
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call_interrupt ( ¶ms );
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}
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return 0;
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}
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/**
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* Get character from console
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*
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* @ret character Character
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*/
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int getchar ( void ) {
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EFI_BOOT_SERVICES *bs;
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EFI_SIMPLE_TEXT_INPUT_PROTOCOL *conin;
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EFI_INPUT_KEY key;
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UINTN index;
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struct bootapp_callback_params params;
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int character;
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/* Get character */
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if ( efi_systab ) {
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bs = efi_systab->BootServices;
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conin = efi_systab->ConIn;
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bs->WaitForEvent ( 1, &conin->WaitForKey, &index );
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conin->ReadKeyStroke ( conin, &key );
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character = key.UnicodeChar;
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} else {
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memset ( ¶ms, 0, sizeof ( params ) );
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params.vector.interrupt = 0x16;
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call_interrupt ( ¶ms );
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character = params.al;
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}
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return character;
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}
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