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/*
*
* (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __MXC_GPIO_H
#define __MXC_GPIO_H
/* Converts a GPIO port number and the internal bit position
* to the GPIO number
*/
#define MXC_GPIO_PORT_TO_NUM(port, bit) (((port - 1) << 5) + (bit & 0x1f))
enum mxc_gpio_direction {
MXC_GPIO_DIRECTION_IN,
MXC_GPIO_DIRECTION_OUT,
};
#ifdef CONFIG_MXC_GPIO
extern int mxc_gpio_direction(unsigned int gpio,
enum mxc_gpio_direction direction);
extern void mxc_gpio_set(unsigned int gpio, unsigned int value);
extern int mxc_gpio_get(unsigned int gpio);
#else
static inline int mxc_gpio_direction(unsigned int gpio,
enum mxc_gpio_direction direction)
{
return 1;
}
static inline int mxc_gpio_get(unsigned int gpio)
{
return 1;
}
static inline void mxc_gpio_set(unsigned int gpio, unsigned int value)
{
}
#endif
#endif
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