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63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/*
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* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
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* Scott McNutt <smcnutt@psyent.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <nios2-io.h>
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#include <status_led.h>
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/* The LED port is configured as output only, so we
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* must track the state manually.
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*/
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static led_id_t val = 0;
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void __led_init (led_id_t mask, int state)
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{
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nios_pio_t *pio = (nios_pio_t *)CFG_LEDPIO_ADDR;
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if (state == STATUS_LED_ON)
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val &= ~mask;
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else
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val |= mask;
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writel (&pio->data, val);
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}
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void __led_set (led_id_t mask, int state)
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{
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nios_pio_t *pio = (nios_pio_t *)CFG_LEDPIO_ADDR;
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if (state == STATUS_LED_ON)
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val &= ~mask;
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else
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val |= mask;
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writel (&pio->data, val);
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}
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void __led_toggle (led_id_t mask)
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{
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nios_pio_t *pio = (nios_pio_t *)CFG_LEDPIO_ADDR;
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val ^= mask;
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writel (&pio->data, val);
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}
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