Added LED driver using status_led. USR0 is set to monitor the boot status. USR1 is set to be the green LED. Included adding configuration and command to the default configuration. Signed-off-by: Jason Kridner <jkridner@beagleboard.org> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>master
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/*
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* Copyright (c) 2010 Texas Instruments, Inc. |
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* Jason Kridner <jkridner@beagleboard.org> |
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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 <status_led.h> |
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#include <asm/arch/cpu.h> |
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#include <asm/io.h> |
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#include <asm/arch/sys_proto.h> |
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#include <asm/arch/gpio.h> |
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static unsigned int saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF}; |
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/* GPIO pins for the LEDs */ |
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#define BEAGLE_LED_USR0 149 |
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#define BEAGLE_LED_USR1 150 |
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#ifdef STATUS_LED_GREEN |
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void green_LED_off (void) |
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{ |
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__led_set (STATUS_LED_GREEN, 0); |
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} |
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void green_LED_on (void) |
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{ |
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__led_set (STATUS_LED_GREEN, 1); |
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} |
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#endif |
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void __led_init (led_id_t mask, int state) |
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{ |
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__led_set (mask, state); |
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} |
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void __led_toggle (led_id_t mask) |
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{ |
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#ifdef STATUS_LED_BIT |
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if (STATUS_LED_BIT & mask) { |
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if (STATUS_LED_ON == saved_state[0]) |
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__led_set(STATUS_LED_BIT, 0); |
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else |
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__led_set(STATUS_LED_BIT, 1); |
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} |
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#endif |
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#ifdef STATUS_LED_BIT1 |
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if (STATUS_LED_BIT1 & mask) { |
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if (STATUS_LED_ON == saved_state[1]) |
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__led_set(STATUS_LED_BIT1, 0); |
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else |
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__led_set(STATUS_LED_BIT1, 1); |
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} |
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#endif |
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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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#ifdef STATUS_LED_BIT |
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if (STATUS_LED_BIT & mask) { |
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if (!omap_request_gpio(BEAGLE_LED_USR0)) { |
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omap_set_gpio_direction(BEAGLE_LED_USR0, 0); |
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omap_set_gpio_dataout(BEAGLE_LED_USR0, state); |
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} |
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saved_state[0] = state; |
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} |
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#endif |
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#ifdef STATUS_LED_BIT1 |
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if (STATUS_LED_BIT1 & mask) { |
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if (!omap_request_gpio(BEAGLE_LED_USR1)) { |
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omap_set_gpio_direction(BEAGLE_LED_USR1, 0); |
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omap_set_gpio_dataout(BEAGLE_LED_USR1, state); |
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} |
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saved_state[1] = state; |
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} |
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#endif |
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} |
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