u-boot-brain/board/altera/common/epled.c
Scott McNutt 3ea0037f23 nios2: Fix outx/writex parameter order in io.h
The outx/writex macros were using writex(addr, val) rather than
   the standard writex(val, addr), resulting in incompatibilty with
   architecture independent components. This change set uses standard
   parameter order.

Signed-off-by: Scott McNutt <smcnutt@psyent.com>
2010-04-02 12:28:41 -04:00

63 lines
1.6 KiB
C

/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that 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
*/
#include <common.h>
#include <asm/io.h>
#include <nios2-io.h>
#include <status_led.h>
/* The LED port is configured as output only, so we
* must track the state manually.
*/
static led_id_t val = 0;
void __led_init (led_id_t mask, int state)
{
nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
if (state == STATUS_LED_ON)
val &= ~mask;
else
val |= mask;
writel (val, &pio->data);
}
void __led_set (led_id_t mask, int state)
{
nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
if (state == STATUS_LED_ON)
val &= ~mask;
else
val |= mask;
writel (val, &pio->data);
}
void __led_toggle (led_id_t mask)
{
nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
val ^= mask;
writel (val, &pio->data);
}