linux/arch/m68k/include/asm/mcfgpio.h
sfking@fdwdc.com af39bb8b07 core generic GPIO support for Freescale Coldfire processors.
This adds the basic infrastructure used by all of the different Coldfire CPUs.

Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-09-10 12:01:22 +10:00

40 lines
1.2 KiB
C

/*
* Coldfire generic GPIO support.
*
* (C) Copyright 2009, Steven King <sfking@fdwdc.com>
*
* 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; version 2 of the License.
*
* 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.
*/
#ifndef mcfgpio_h
#define mcfgpio_h
#include <linux/io.h>
#include <asm-generic/gpio.h>
struct mcf_gpio_chip {
struct gpio_chip gpio_chip;
void __iomem *pddr;
void __iomem *podr;
void __iomem *ppdr;
void __iomem *setr;
void __iomem *clrr;
const u8 *gpio_to_pinmux;
};
int mcf_gpio_direction_input(struct gpio_chip *, unsigned);
int mcf_gpio_get_value(struct gpio_chip *, unsigned);
int mcf_gpio_direction_output(struct gpio_chip *, unsigned, int);
void mcf_gpio_set_value(struct gpio_chip *, unsigned, int);
void mcf_gpio_set_value_fast(struct gpio_chip *, unsigned, int);
int mcf_gpio_request(struct gpio_chip *, unsigned);
void mcf_gpio_free(struct gpio_chip *, unsigned);
#endif