release/src/include/linux_gpio.h

   1 /*
   2  * Linux Broadcom BCM47xx GPIO char driver
   3  *
   4  * Copyright 2007, Broadcom Corporation
   5  * All Rights Reserved.
   6  *
   7  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
   8  * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
   9  * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  10  * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  11  *
  12  * $Id$
  13  */
  14
  15 #ifndef _linux_gpio_h_
  16 #define _linux_gpio_h_
  17
  18 struct gpio_ioctl {
  19         uint32 mask;
  20         uint32 val;
  21 };
  22
  23 #define GPIO_IOC_MAGIC  'G'
  24
  25 /* reserve/release a gpio to the caller */
  26 #define  GPIO_IOC_RESERVE       _IOWR(GPIO_IOC_MAGIC, 1, struct gpio_ioctl)
  27 #define  GPIO_IOC_RELEASE       _IOWR(GPIO_IOC_MAGIC, 2, struct gpio_ioctl)
  28 /* ioctls to read/write the gpio registers */
  29 #define  GPIO_IOC_OUT           _IOWR(GPIO_IOC_MAGIC, 3, struct gpio_ioctl)
  30 #define  GPIO_IOC_IN            _IOWR(GPIO_IOC_MAGIC, 4, struct gpio_ioctl)
  31 #define  GPIO_IOC_OUTEN         _IOWR(GPIO_IOC_MAGIC, 5, struct gpio_ioctl)
  32
  33 #endif  /* _linux_gpio_h_ */