mirror of
https://github.com/AsahiLinux/u-boot
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101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
/*
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* Copyright (C) 2010, 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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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 <asm/io.h>
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#include <asm/arch/ep93xx.h>
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#include <config.h>
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#include <status_led.h>
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static uint8_t saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF};
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static uint32_t gpio_pin[2] = {1 << STATUS_LED_GREEN,
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1 << STATUS_LED_RED};
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inline void switch_LED_on(uint8_t led)
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{
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register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
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writel(readl(&gpio->pedr) | gpio_pin[led], &gpio->pedr);
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saved_state[led] = STATUS_LED_ON;
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}
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inline void switch_LED_off(uint8_t led)
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{
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register struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE;
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writel(readl(&gpio->pedr) & ~gpio_pin[led], &gpio->pedr);
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saved_state[led] = STATUS_LED_OFF;
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}
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void red_LED_on(void)
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{
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switch_LED_on(STATUS_LED_RED);
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}
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void red_LED_off(void)
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{
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switch_LED_off(STATUS_LED_RED);
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}
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void green_LED_on(void)
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{
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switch_LED_on(STATUS_LED_GREEN);
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}
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void green_LED_off(void)
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{
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switch_LED_off(STATUS_LED_GREEN);
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}
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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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if (STATUS_LED_RED == mask) {
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if (STATUS_LED_ON == saved_state[STATUS_LED_RED])
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red_LED_off();
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else
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red_LED_on();
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} else if (STATUS_LED_GREEN == mask) {
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if (STATUS_LED_ON == saved_state[STATUS_LED_GREEN])
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green_LED_off();
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else
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green_LED_on();
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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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if (STATUS_LED_RED == mask) {
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if (STATUS_LED_ON == state)
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red_LED_on();
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else
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red_LED_off();
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} else if (STATUS_LED_GREEN == mask) {
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if (STATUS_LED_ON == state)
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green_LED_on();
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else
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green_LED_off();
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}
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}
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