linux/arch/mn10300/unit-asb2303/leds.c
David Howells 2f2a2132ff Separate out the proc- and unit-specific header directories from the general
MN10300 arch headers and place them instead in the same directories as contain
the .c files for the processor and unit implementations.

This permits the symlinks include/asm/proc and include/asm/unit to be
dispensed with.  This does, however, require that #include <asm/proc/xxx.h> be
converted to #include <proc/xxx.h> and similarly for asm/unit -> unit.

Signed-off-by: David Howells <dhowells@redhat.com>
2009-04-10 14:33:48 +01:00

53 lines
1.4 KiB
C

/* ASB2303 peripheral 7-segment LEDs x1 support
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/intctl-regs.h>
#include <asm/rtc-regs.h>
#include <unit/leds.h>
#if 0
static const u8 asb2303_led_hex_tbl[16] = {
0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0,
0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c
};
#endif
static const u8 asb2303_led_chase_tbl[6] = {
~0x02, /* top - segA */
~0x04, /* right top - segB */
~0x08, /* right bottom - segC */
~0x10, /* bottom - segD */
~0x20, /* left bottom - segE */
~0x40, /* left top - segF */
};
static unsigned asb2303_led_chase;
void peripheral_leds_display_exception(enum exception_code code)
{
ASB2303_GPIO0DEF = 0x5555; /* configure as an output port */
ASB2303_7SEGLEDS = 0x6d; /* triple horizontal bar */
}
void peripheral_leds_led_chase(void)
{
ASB2303_GPIO0DEF = 0x5555; /* configure as an output port */
ASB2303_7SEGLEDS = asb2303_led_chase_tbl[asb2303_led_chase];
asb2303_led_chase++;
if (asb2303_led_chase >= 6)
asb2303_led_chase = 0;
}