release/src-rt/include/linux_gpio.h

   1 /*
   2  * Linux Broadcom BCM47xx GPIO char driver
   3  *
   4  * Copyright (C) 2010, Broadcom Corporation. All Rights Reserved.
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  13  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  15  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  16  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  *
  18  * $Id: linux_gpio.h,v 13.3 2007-02-01 22:51:59 Exp $
  19  */
  20
  21 #ifndef _linux_gpio_h_
  22 #define _linux_gpio_h_
  23
  24 struct gpio_ioctl {
  25         uint32 mask;
  26         uint32 val;
  27 };
  28
  29 #define GPIO_IOC_MAGIC  'G'
  30
  31 /* reserve/release a gpio to the caller */
  32 #define  GPIO_IOC_RESERVE       _IOWR(GPIO_IOC_MAGIC, 1, struct gpio_ioctl)
  33 #define  GPIO_IOC_RELEASE       _IOWR(GPIO_IOC_MAGIC, 2, struct gpio_ioctl)
  34 /* ioctls to read/write the gpio registers */
  35 #define  GPIO_IOC_OUT           _IOWR(GPIO_IOC_MAGIC, 3, struct gpio_ioctl)
  36 #define  GPIO_IOC_IN            _IOWR(GPIO_IOC_MAGIC, 4, struct gpio_ioctl)
  37 #define  GPIO_IOC_OUTEN         _IOWR(GPIO_IOC_MAGIC, 5, struct gpio_ioctl)
  38
  39 #endif  /* _linux_gpio_h_ */