From 315806cb19f9d375dccbc2d60fa14e16afdcd5ac Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 15 Jul 2008 18:44:34 +0100 Subject: [MIPS] Malta: Cleanup organization of code into directories. Signed-off-by: Ralf Baechle --- arch/mips/mti-malta/malta-display.c | 64 +++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 arch/mips/mti-malta/malta-display.c (limited to 'arch/mips/mti-malta/malta-display.c') diff --git a/arch/mips/mti-malta/malta-display.c b/arch/mips/mti-malta/malta-display.c new file mode 100644 index 00000000000..7c8828fcb0a --- /dev/null +++ b/arch/mips/mti-malta/malta-display.c @@ -0,0 +1,64 @@ +/* + * Carsten Langgaard, carstenl@mips.com + * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope 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., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Display routines for display messages in MIPS boards ascii display. + */ + +#include +#include +#include +#include +#include + +extern const char display_string[]; +static unsigned int display_count; +static unsigned int max_display_count; + +void mips_display_message(const char *str) +{ + static unsigned int __iomem *display = NULL; + int i; + + if (unlikely(display == NULL)) + display = ioremap(ASCII_DISPLAY_POS_BASE, 16*sizeof(int)); + + for (i = 0; i <= 14; i=i+2) { + if (*str) + __raw_writel(*str++, display + i); + else + __raw_writel(' ', display + i); + } +} + +static void scroll_display_message(unsigned long data); +static DEFINE_TIMER(mips_scroll_timer, scroll_display_message, HZ, 0); + +static void scroll_display_message(unsigned long data) +{ + mips_display_message(&display_string[display_count++]); + if (display_count == max_display_count) + display_count = 0; + + mod_timer(&mips_scroll_timer, jiffies + HZ); +} + +void mips_scroll_message(void) +{ + del_timer_sync(&mips_scroll_timer); + max_display_count = strlen(display_string) + 1 - 8; + mod_timer(&mips_scroll_timer, jiffies + 1); +} -- cgit v1.2.3