arch/m68k/include/asm/mcfgpio.h

   1 /*
   2  * Coldfire generic GPIO support.
   3  *
   4  * (C) Copyright 2009, Steven King <sfking@fdwdc.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #ifndef mcfgpio_h
  17 #define mcfgpio_h
  18
  19 #include <linux/io.h>
  20 #include <asm-generic/gpio.h>
  21
  22 struct mcf_gpio_chip {
  23         struct gpio_chip gpio_chip;
  24         void __iomem *pddr;
  25         void __iomem *podr;
  26         void __iomem *ppdr;
  27         void __iomem *setr;
  28         void __iomem *clrr;
  29         const u8 *gpio_to_pinmux;
  30 };
  31
  32 int mcf_gpio_direction_input(struct gpio_chip *, unsigned);
  33 int mcf_gpio_get_value(struct gpio_chip *, unsigned);
  34 int mcf_gpio_direction_output(struct gpio_chip *, unsigned, int);
  35 void mcf_gpio_set_value(struct gpio_chip *, unsigned, int);
  36 void mcf_gpio_set_value_fast(struct gpio_chip *, unsigned, int);
  37 int mcf_gpio_request(struct gpio_chip *, unsigned);
  38 void mcf_gpio_free(struct gpio_chip *, unsigned);
  39
  40 #endif