u-boot/board/psyent/pk1c20/led.c
Jean-Christophe PLAGNIOL-VILLARD 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-18 21:54:03 +02:00

62 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 (&pio->data, val);
}
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 (&pio->data, val);
}
void __led_toggle (led_id_t mask)
{
nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
val ^= mask;
writel (&pio->data, val);
}