summaryrefslogtreecommitdiffstats
path: root/qemu/roms/ipxe/src/core/getkey.c
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/roms/ipxe/src/core/getkey.c')
-rw-r--r--qemu/roms/ipxe/src/core/getkey.c91
1 files changed, 0 insertions, 91 deletions
diff --git a/qemu/roms/ipxe/src/core/getkey.c b/qemu/roms/ipxe/src/core/getkey.c
deleted file mode 100644
index 0f0f8b7c3..000000000
--- a/qemu/roms/ipxe/src/core/getkey.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#include <ctype.h>
-#include <ipxe/console.h>
-#include <ipxe/process.h>
-#include <ipxe/keys.h>
-#include <ipxe/timer.h>
-#include <ipxe/nap.h>
-
-/** @file
- *
- * Special key interpretation
- *
- */
-
-#define GETKEY_TIMEOUT ( TICKS_PER_SEC / 4 )
-
-/**
- * Read character from console if available within timeout period
- *
- * @v timeout Timeout period, in ticks (0=indefinite)
- * @ret character Character read from console
- */
-static int getchar_timeout ( unsigned long timeout ) {
- unsigned long start = currticks();
-
- while ( ( timeout == 0 ) || ( ( currticks() - start ) < timeout ) ) {
- step();
- if ( iskey() )
- return getchar();
- cpu_nap();
- }
-
- return -1;
-}
-
-/**
- * Get single keypress
- *
- * @v timeout Timeout period, in ticks (0=indefinite)
- * @ret key Key pressed
- *
- * The returned key will be an ASCII value or a KEY_XXX special
- * constant. This function differs from getchar() in that getchar()
- * will return "special" keys (e.g. cursor keys) as a series of
- * characters forming an ANSI escape sequence.
- */
-int getkey ( unsigned long timeout ) {
- int character;
- unsigned int n = 0;
-
- character = getchar_timeout ( timeout );
- if ( character != ESC )
- return character;
-
- while ( ( character = getchar_timeout ( GETKEY_TIMEOUT ) ) >= 0 ) {
- if ( character == '[' )
- continue;
- if ( isdigit ( character ) ) {
- n = ( ( n * 10 ) + ( character - '0' ) );
- continue;
- }
- if ( character >= 0x40 )
- return KEY_ANSI ( n, character );
- }
-
- return ESC;
-}