diff options
Diffstat (limited to 'board/atmel/at91rm9200ek/led.c')
-rw-r--r-- | board/atmel/at91rm9200ek/led.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/board/atmel/at91rm9200ek/led.c b/board/atmel/at91rm9200ek/led.c new file mode 100644 index 0000000..9464952 --- /dev/null +++ b/board/atmel/at91rm9200ek/led.c @@ -0,0 +1,89 @@ +/* + * (C) Copyright 2006 + * Atmel Nordic AB <www.atmel.com> + * Ulf Samuelsson <ulf@atmel.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/AT91RM9200.h> +#include <asm/io.h> + +#define GREEN_LED AT91C_PIO_PB0 +#define YELLOW_LED AT91C_PIO_PB1 +#define RED_LED AT91C_PIO_PB2 + +void green_LED_on(void) +{ + AT91PS_PIO PIOB = AT91C_BASE_PIOB; + + writel(GREEN_LED, PIOB->PIO_CODR); +} + +void yellow_LED_on(void) +{ + AT91PS_PIO PIOB = AT91C_BASE_PIOB; + + writel(YELLOW_LED, PIOB->PIO_CODR); +} + +void red_LED_on(void) +{ + AT91PS_PIO PIOB = AT91C_BASE_PIOB; + + writel(RED_LED, PIOB->PIO_CODR); +} + +void green_LED_off(void) +{ + AT91PS_PIO PIOB = AT91C_BASE_PIOB; + + writel(GREEN_LED, PIOB->PIO_SODR); +} + +void yellow_LED_off(void) +{ + AT91PS_PIO PIOB = AT91C_BASE_PIOB; + + writel(YELLOW_LED, PIOB->PIO_SODR); +} + +void red_LED_off(void) +{ + AT91PS_PIO PIOB = AT91C_BASE_PIOB; + + writel(RED_LED, PIOB->PIO_SODR); +} + + +void coloured_LED_init (void) +{ + AT91PS_PIO PIOB = AT91C_BASE_PIOB; + AT91PS_PMC PMC = AT91C_BASE_PMC; + + /* Enable PIOB clock */ + writel((1 << AT91C_ID_PIOB), PMC->PMC_PCER); + /* Disable peripherals on LEDs */ + writel(AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0, PIOB->PIO_PER); + /* Enable pins as outputs */ + writel(AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0, PIOB->PIO_OER); + /* Turn all LEDs OFF */ + writel(AT91C_PIO_PB2 | AT91C_PIO_PB1 | AT91C_PIO_PB0, PIOB->PIO_SODR); +} |