1 /*
2  * Copyright (c) 2011, Google Inc. All rights reserved.
3  * See file CREDITS for list of people who contributed to this
4  * project.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2 of
9  * the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
19  * MA 02111-1307 USA
20  */
21 
22 #ifndef _TEGRA_GPIO_H_
23 #define _TEGRA_GPIO_H_
24 
25 #define MAX_NUM_GPIOS           (TEGRA_GPIO_PORTS * TEGRA_GPIO_BANKS * 8)
26 #define GPIO_NAME_SIZE		20	/* gpio_request max label len */
27 
28 #define GPIO_BANK(x)		((x) >> 5)
29 #define GPIO_PORT(x)		(((x) >> 3) & 0x3)
30 #define GPIO_FULLPORT(x)	((x) >> 3)
31 #define GPIO_BIT(x)		((x) & 0x7)
32 
33 /*
34  * Tegra-specific GPIO API
35  */
36 
37 void gpio_info(void);
38 
39 #define gpio_status()	gpio_info()
40 #endif	/* TEGRA_GPIO_H_ */
41