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Diffstat (limited to 'board/taskit/stamp9g20/led.c')
| -rw-r--r-- | board/taskit/stamp9g20/led.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/board/taskit/stamp9g20/led.c b/board/taskit/stamp9g20/led.c new file mode 100644 index 0000000000..197b4da5f0 --- /dev/null +++ b/board/taskit/stamp9g20/led.c @@ -0,0 +1,138 @@ +/* + * Copyright (c) 2009 Wind River Systems, Inc. + * Tom Rix <Tom.Rix@windriver.com> + * (C) Copyright 2009 + * Eric Benard <eric@eukrea.com> + * + * (C) Copyright 2012 + * Markus Hubig <mhubig@imko.de> + * IMKO GmbH <www.imko.de> + * + * 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/io.h> +#include <asm/arch/gpio.h> +#include <asm/arch/at91_pmc.h> +#include <status_led.h> + +static unsigned int saved_state[3] = {STATUS_LED_OFF, + STATUS_LED_OFF, STATUS_LED_OFF}; + +void coloured_LED_init(void) +{ + struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; + + /* Enable the clock */ + writel(ATMEL_ID_PIOC, &pmc->pcer); + + at91_set_gpio_output(CONFIG_RED_LED, 1); + at91_set_gpio_output(CONFIG_GREEN_LED, 1); + at91_set_gpio_output(CONFIG_YELLOW_LED, 1); + + at91_set_gpio_value(CONFIG_RED_LED, 0); + at91_set_gpio_value(CONFIG_GREEN_LED, 1); + at91_set_gpio_value(CONFIG_YELLOW_LED, 0); +} + +void red_led_on(void) +{ + at91_set_gpio_value(CONFIG_RED_LED, 1); + saved_state[STATUS_LED_RED] = STATUS_LED_ON; +} + +void red_led_off(void) +{ + at91_set_gpio_value(CONFIG_RED_LED, 0); + saved_state[STATUS_LED_RED] = STATUS_LED_OFF; +} + +void green_led_on(void) +{ + at91_set_gpio_value(CONFIG_GREEN_LED, 1); + saved_state[STATUS_LED_GREEN] = STATUS_LED_ON; +} + +void green_led_off(void) +{ + at91_set_gpio_value(CONFIG_GREEN_LED, 0); + saved_state[STATUS_LED_GREEN] = STATUS_LED_OFF; +} + +void yellow_led_on(void) +{ + at91_set_gpio_value(CONFIG_YELLOW_LED, 1); + saved_state[STATUS_LED_YELLOW] = STATUS_LED_ON; +} + +void yellow_led_off(void) +{ + at91_set_gpio_value(CONFIG_YELLOW_LED, 0); + saved_state[STATUS_LED_YELLOW] = STATUS_LED_OFF; +} + +void __led_init(led_id_t mask, int state) +{ + __led_set(mask, state); +} + +void __led_toggle(led_id_t mask) +{ + if (STATUS_LED_RED == mask) { + if (STATUS_LED_ON == saved_state[STATUS_LED_RED]) + red_led_off(); + else + red_led_on(); + + } else if (STATUS_LED_GREEN == mask) { + if (STATUS_LED_ON == saved_state[STATUS_LED_GREEN]) + green_led_off(); + else + green_led_on(); + + } else if (STATUS_LED_YELLOW == mask) { + if (STATUS_LED_ON == saved_state[STATUS_LED_YELLOW]) + yellow_led_off(); + else + yellow_led_on(); + } +} + +void __led_set(led_id_t mask, int state) +{ + if (STATUS_LED_RED == mask) { + if (STATUS_LED_ON == state) + red_led_on(); + else + red_led_off(); + + } else if (STATUS_LED_GREEN == mask) { + if (STATUS_LED_ON == state) + green_led_on(); + else + green_led_off(); + + } else if (STATUS_LED_YELLOW == mask) { + if (STATUS_LED_ON == state) + yellow_led_on(); + else + yellow_led_off(); + } +} |