2 * Copyright © 2016 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21 static struct ao_power *head, *tail;
24 ao_power_register(struct ao_power *power)
26 if (power->registered)
28 power->registered = TRUE;
37 ao_led_on(AO_LED_POWER);
42 ao_power_unregister(struct ao_power *power)
44 if (!power->registered)
46 power->registered = FALSE;
48 power->prev->next = power->next;
52 power->next->prev = power->prev;
58 ao_power_suspend(void)
63 ao_led_off(AO_LED_POWER);
65 for (p = tail; p; p = p->prev)
74 for (p = head; p; p = p->next)
77 ao_led_on(AO_LED_POWER);