blob: d0197358f45d33c4fc8a30cfbefb0a444d441280 [file] [log] [blame]
Scott McNutt9cc83372006-06-08 13:37:39 -04001/*
2 * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
3 * Scott McNutt <smcnutt@psyent.com>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <asm/io.h>
26#include <nios2-io.h>
27#include <status_led.h>
28
29/* The LED port is configured as output only, so we
30 * must track the state manually.
31 */
32static led_id_t val = 0;
33
34void __led_init (led_id_t mask, int state)
35{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020036 nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
Scott McNutt9cc83372006-06-08 13:37:39 -040037
38 if (state == STATUS_LED_ON)
39 val &= ~mask;
40 else
41 val |= mask;
Scott McNutt3ea00372010-03-21 21:24:43 -040042 writel (val, &pio->data);
Scott McNutt9cc83372006-06-08 13:37:39 -040043}
44
45void __led_set (led_id_t mask, int state)
46{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020047 nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
Scott McNutt9cc83372006-06-08 13:37:39 -040048
49 if (state == STATUS_LED_ON)
50 val &= ~mask;
51 else
52 val |= mask;
Scott McNutt3ea00372010-03-21 21:24:43 -040053 writel (val, &pio->data);
Scott McNutt9cc83372006-06-08 13:37:39 -040054}
55
56void __led_toggle (led_id_t mask)
57{
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020058 nios_pio_t *pio = (nios_pio_t *)CONFIG_SYS_LEDPIO_ADDR;
Scott McNutt9cc83372006-06-08 13:37:39 -040059
60 val ^= mask;
Scott McNutt3ea00372010-03-21 21:24:43 -040061 writel (val, &pio->data);
Scott McNutt9cc83372006-06-08 13:37:39 -040062}