source: SVN/rincon/u-boot/board/psyent/pk1c20/led.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 2 years ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 1.6 KB
Line 
1/*
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{
36        nios_pio_t *pio = (nios_pio_t *)CFG_LEDPIO_ADDR;
37
38        if (state == STATUS_LED_ON)
39                val &= ~mask;
40        else
41                val |= mask;
42        writel (&pio->data, val);
43}
44
45void __led_set (led_id_t mask, int state)
46{
47        nios_pio_t *pio = (nios_pio_t *)CFG_LEDPIO_ADDR;
48
49        if (state == STATUS_LED_ON)
50                val &= ~mask;
51        else
52                val |= mask;
53        writel (&pio->data, val);
54}
55
56void __led_toggle (led_id_t mask)
57{
58        nios_pio_t *pio = (nios_pio_t *)CFG_LEDPIO_ADDR;
59
60        val ^= mask;
61        writel (&pio->data, val);
62}
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