blob: 580d590f2a7068dbc0848772156beb92cd4ac4d4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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);
}
|
