2 * carl9170 firmware - used by the ar9170 wireless device
4 * GPIO interrupt service
6 * Copyright (c) 2000-2005 ZyDAS Technology Corporation
7 * Copyright (c) 2007-2009 Atheros Communications, Inc.
8 * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
9 * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License along
22 * with this program; If not, see <http://www.gnu.org/licenses/>.
28 #ifdef CONFIG_CARL9170FW_GPIO_INTERRUPT
33 cur = get(AR9170_GPIO_REG_PORT_DATA) & CARL9170_GPIO_MASK;
35 if (cur != fw.cached_gpio_state.gpio) {
36 fw.cached_gpio_state.gpio = cur;
38 send_cmd_to_host(sizeof(struct carl9170_gpio),
39 CARL9170_RSP_GPIO, 0x00,
40 (uint8_t *)&fw.cached_gpio_state);
42 # ifdef CONFIG_CARL9170FW_WATCHDOG_BUTTON
45 * Loop forever... Until the watchdog triggers.
48 # endif /* CONFIG_CARL9170FW_WATCHDOG_BUTTON */
51 #endif /* CONFIG_CARL9170FW_GPIO_INTERRUPT */