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1da177e4 LT |
1 | /* |
2 | * Carsten Langgaard, carstenl@mips.com | |
3 | * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. | |
4 | * | |
5 | * This program is free software; you can distribute it and/or modify it | |
6 | * under the terms of the GNU General Public License (Version 2) as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
17 | * | |
18 | * Display routines for display messages in MIPS boards ascii display. | |
19 | */ | |
20 | ||
21 | #include <linux/compiler.h> | |
22 | #include <asm/io.h> | |
23 | #include <asm/mips-boards/generic.h> | |
24 | ||
25 | void mips_display_message(const char *str) | |
26 | { | |
27 | static volatile unsigned int *display = NULL; | |
28 | int i; | |
29 | ||
30 | if (unlikely(display == NULL)) | |
31 | display = (volatile unsigned int *)ioremap(ASCII_DISPLAY_POS_BASE, 16*sizeof(int)); | |
32 | ||
33 | for (i = 0; i <= 14; i=i+2) { | |
34 | if (*str) | |
35 | display[i] = *str++; | |
36 | else | |
37 | display[i] = ' '; | |
38 | } | |
39 | } |