forked from Minki/linux
49bffbdc88
Clean-up code according to the 'checkpatch.pl' script. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Display routines for display messages in MIPS boards ascii display.
|
|
*
|
|
* Copyright (C) 1999,2000,2012 MIPS Technologies, Inc.
|
|
* All rights reserved.
|
|
* Authors: Carsten Langgaard <carstenl@mips.com>
|
|
* Steven J. Hill <sjhill@mips.com>
|
|
*/
|
|
#include <linux/compiler.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <asm/mips-boards/generic.h>
|
|
|
|
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 += 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);
|
|
}
|