linux/arch/mn10300/unit-asb2305/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

125 lines
2.9 KiB
C

/* ASB2305 Peripheral 7-segment LEDs x4 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/cpu/intctl-regs.h>
#include <asm/cpu/rtc-regs.h>
#include <unit/leds.h>
static const u8 asb2305_led_hex_tbl[16] = {
0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0,
0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c
};
static const u32 asb2305_led_chase_tbl[6] = {
~0x02020202, /* top - segA */
~0x04040404, /* right top - segB */
~0x08080808, /* right bottom - segC */
~0x10101010, /* bottom - segD */
~0x20202020, /* left bottom - segE */
~0x40404040, /* left top - segF */
};
static unsigned asb2305_led_chase;
void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points)
{
u32 leds;
leds = asb2305_led_hex_tbl[(val/1000) % 10];
leds <<= 8;
leds |= asb2305_led_hex_tbl[(val/100) % 10];
leds <<= 8;
leds |= asb2305_led_hex_tbl[(val/10) % 10];
leds <<= 8;
leds |= asb2305_led_hex_tbl[val % 10];
leds |= points^0x01010101;
ASB2305_7SEGLEDS = leds;
}
void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points)
{
u32 leds;
leds = asb2305_led_hex_tbl[(val/1000) % 10];
leds <<= 8;
leds |= asb2305_led_hex_tbl[(val/100) % 10];
leds <<= 8;
leds |= asb2305_led_hex_tbl[(val/10) % 10];
leds <<= 8;
leds |= asb2305_led_hex_tbl[val % 10];
leds |= points^0x01010101;
ASB2305_7SEGLEDS = leds;
}
void peripheral_leds_display_exception(enum exception_code code)
{
u32 leds;
leds = asb2305_led_hex_tbl[(code/0x100) % 0x10];
leds <<= 8;
leds |= asb2305_led_hex_tbl[(code/0x10) % 0x10];
leds <<= 8;
leds |= asb2305_led_hex_tbl[code % 0x10];
leds |= 0x6d010101;
ASB2305_7SEGLEDS = leds;
}
void peripheral_leds7x4_display_minssecs(unsigned int time, unsigned int points)
{
u32 leds;
leds = asb2305_led_hex_tbl[(time/600) % 6];
leds <<= 8;
leds |= asb2305_led_hex_tbl[(time/60) % 10];
leds <<= 8;
leds |= asb2305_led_hex_tbl[(time/10) % 6];
leds <<= 8;
leds |= asb2305_led_hex_tbl[time % 10];
leds |= points^0x01010101;
ASB2305_7SEGLEDS = leds;
}
void peripheral_leds7x4_display_rtc(void)
{
unsigned int clock;
u8 mins, secs;
mins = RTMCR;
secs = RTSCR;
clock = ((mins & 0xf0) >> 4);
clock *= 10;
clock += (mins & 0x0f);
clock *= 6;
clock += ((secs & 0xf0) >> 4);
clock *= 10;
clock += (secs & 0x0f);
peripheral_leds7x4_display_minssecs(clock, 0);
}
void peripheral_leds_led_chase(void)
{
ASB2305_7SEGLEDS = asb2305_led_chase_tbl[asb2305_led_chase];
asb2305_led_chase++;
if (asb2305_led_chase >= 6)
asb2305_led_chase = 0;
}