2 * linux/include/asm-arm/arch-ixp4xx/gpio.h
4 * IXP4XX GPIO wrappers for arch-neutral GPIO calls
6 * Written by Milan Svoboda <msvoboda@ra.rockwell.com>
7 * Based on PXA implementation by Philipp Zabel <philipp.zabel@gmail.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #ifndef __ASM_ARCH_IXP4XX_GPIO_H
26 #define __ASM_ARCH_IXP4XX_GPIO_H
28 #include <asm/hardware.h>
30 static inline int gpio_request(unsigned gpio, const char *label)
35 static inline void gpio_free(unsigned gpio)
40 static inline int gpio_direction_input(unsigned gpio)
42 gpio_line_config(gpio, IXP4XX_GPIO_IN);
46 static inline int gpio_direction_output(unsigned gpio, int level)
48 gpio_line_set(gpio, level);
49 gpio_line_config(gpio, IXP4XX_GPIO_OUT);
53 static inline int gpio_get_value(unsigned gpio)
57 gpio_line_get(gpio, &value);
62 static inline void gpio_set_value(unsigned gpio, int value)
64 gpio_line_set(gpio, value);
67 #include <asm-generic/gpio.h> /* cansleep wrappers */
69 extern int gpio_to_irq(int gpio);
70 extern int irq_to_gpio(int gpio);