mirror of
https://github.com/brain-hackers/u-boot-brain
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b8bc8973a1
* Read the led output state from GPIO instead saving state in memory when it is [re]set * Added a toggle option to the led command Previous discussion: http://lists.denx.de/pipermail/u-boot/2011-May/093068.html Changes since v1: Fixed checkpatch errors Signed-off-by: Joel A Fernandes <agnel.joel@gmail.com> Signed-off-by: Jason Kridner <jkridner@beagleboard.org> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/*
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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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/* GPIO pins for the LEDs */
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#define BEAGLE_LED_USR0 150
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#define BEAGLE_LED_USR1 149
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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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int state, toggle_gpio = 0;
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#ifdef STATUS_LED_BIT
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if (!toggle_gpio && STATUS_LED_BIT & mask)
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toggle_gpio = BEAGLE_LED_USR0;
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#endif
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#ifdef STATUS_LED_BIT1
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if (!toggle_gpio && STATUS_LED_BIT1 & mask)
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toggle_gpio = BEAGLE_LED_USR1;
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#endif
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if (toggle_gpio) {
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if (!omap_request_gpio(toggle_gpio)) {
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omap_set_gpio_direction(toggle_gpio, 0);
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state = omap_get_gpio_dataout(toggle_gpio);
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omap_set_gpio_dataout(toggle_gpio, !state);
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}
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}
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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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}
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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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}
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#endif
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}
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