diff options
Diffstat (limited to 'u-boot/board/logicpd/zoom2/led.c')
| -rw-r--r-- | u-boot/board/logicpd/zoom2/led.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/u-boot/board/logicpd/zoom2/led.c b/u-boot/board/logicpd/zoom2/led.c new file mode 100644 index 0000000..4e14c58 --- /dev/null +++ b/u-boot/board/logicpd/zoom2/led.c @@ -0,0 +1,129 @@ +/* + * Copyright (c) 2009 Wind River Systems, Inc. + * Tom Rix <Tom.Rix@windriver.com> + * + * 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 <status_led.h> +#include <asm/arch/cpu.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/gpio.h> + +static unsigned int saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF}; + +/* + * GPIO LEDs + * 173 red + * 154 blue + * 61 blue2 + */ +#define ZOOM2_LED_RED 173 +#define ZOOM2_LED_BLUE 154 +#define ZOOM2_LED_BLUE2 61 + +void red_LED_off (void) +{ + /* red */ + if (!omap_request_gpio(ZOOM2_LED_RED)) { + omap_set_gpio_direction(ZOOM2_LED_RED, 0); + omap_set_gpio_dataout(ZOOM2_LED_RED, 0); + } + saved_state[STATUS_LED_RED] = STATUS_LED_OFF; +} + +void blue_LED_off (void) +{ + /* blue */ + if (!omap_request_gpio(ZOOM2_LED_BLUE)) { + omap_set_gpio_direction(ZOOM2_LED_BLUE, 0); + omap_set_gpio_dataout(ZOOM2_LED_BLUE, 0); + } + + /* blue 2 */ + if (!omap_request_gpio(ZOOM2_LED_BLUE2)) { + omap_set_gpio_direction(ZOOM2_LED_BLUE2, 0); + omap_set_gpio_dataout(ZOOM2_LED_BLUE2, 0); + } + saved_state[STATUS_LED_BLUE] = STATUS_LED_OFF; +} + +void red_LED_on (void) +{ + blue_LED_off (); + + /* red */ + if (!omap_request_gpio(ZOOM2_LED_RED)) { + omap_set_gpio_direction(ZOOM2_LED_RED, 0); + omap_set_gpio_dataout(ZOOM2_LED_RED, 1); + } + saved_state[STATUS_LED_RED] = STATUS_LED_ON; +} + +void blue_LED_on (void) +{ + red_LED_off (); + + /* blue */ + if (!omap_request_gpio(ZOOM2_LED_BLUE)) { + omap_set_gpio_direction(ZOOM2_LED_BLUE, 0); + omap_set_gpio_dataout(ZOOM2_LED_BLUE, 1); + } + + /* blue 2 */ + if (!omap_request_gpio(ZOOM2_LED_BLUE2)) { + omap_set_gpio_direction(ZOOM2_LED_BLUE2, 0); + omap_set_gpio_dataout(ZOOM2_LED_BLUE2, 1); + } + + saved_state[STATUS_LED_BLUE] = STATUS_LED_ON; +} + +void __led_init (led_id_t mask, int state) +{ + __led_set (mask, state); +} + +void __led_toggle (led_id_t mask) +{ + if (STATUS_LED_BLUE == mask) { + if (STATUS_LED_ON == saved_state[STATUS_LED_BLUE]) + blue_LED_off (); + else + blue_LED_on (); + } else if (STATUS_LED_RED == mask) { + if (STATUS_LED_ON == saved_state[STATUS_LED_RED]) + red_LED_off (); + else + red_LED_on (); + } +} + +void __led_set (led_id_t mask, int state) +{ + if (STATUS_LED_BLUE == mask) { + if (STATUS_LED_ON == state) + blue_LED_on (); + else + blue_LED_off (); + } else if (STATUS_LED_RED == mask) { + if (STATUS_LED_ON == state) + red_LED_on (); + else + red_LED_off (); + } +} |