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/*
* (C) Copyright 2006
* Atmel Nordic AB <www.atmel.com>
* Ulf Samuelsson <ulf@atmel.com>
*
* (C) Copyright 2010
* Andreas Bießmann <andreas.devel@gmail.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/arch/gpio.h>
#include <asm/arch/at91_pmc.h>
/* bit mask in PIO port B */
#define GREEN_LED (1<<0)
#define YELLOW_LED (1<<1)
#define RED_LED (1<<2)
void green_LED_on(void)
{
at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
writel(GREEN_LED, &pio->piob.codr);
}
void yellow_LED_on(void)
{
at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
writel(YELLOW_LED, &pio->piob.codr);
}
void red_LED_on(void)
{
at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
writel(RED_LED, &pio->piob.codr);
}
void green_LED_off(void)
{
at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
writel(GREEN_LED, &pio->piob.sodr);
}
void yellow_LED_off(void)
{
at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
writel(YELLOW_LED, &pio->piob.sodr);
}
void red_LED_off(void)
{
at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
writel(RED_LED, &pio->piob.sodr);
}
void coloured_LED_init (void)
{
at91_pmc_t *pmc = (at91_pmc_t *)AT91_PMC_BASE;
at91_pio_t *pio = (at91_pio_t *)AT91_PIO_BASE;
/* Enable PIOB clock */
writel(1 << AT91_ID_PIOB, &pmc->pcer);
/* Disable peripherals on LEDs */
writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.per);
/* Enable pins as outputs */
writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.oer);
/* Turn all LEDs OFF */
writel(GREEN_LED | YELLOW_LED | RED_LED, &pio->piob.sodr);
}
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