target/linux/brcm-2.4/files/arch/mips/bcm947xx/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  */
  13
  14 #ifndef _linux_gpio_h_
  15 #define _linux_gpio_h_
  16
  17 struct gpio_ioctl {
  18         uint32 mask;
  19         uint32 val;
  20 };
  21
  22 #define GPIO_IOC_MAGIC  'G'
  23
  24 /* reserve/release a gpio to the caller */
  25 #define  GPIO_IOC_RESERVE       _IOWR(GPIO_IOC_MAGIC, 1, struct gpio_ioctl)
  26 #define  GPIO_IOC_RELEASE       _IOWR(GPIO_IOC_MAGIC, 2, struct gpio_ioctl)
  27 /* ioctls to read/write the gpio registers */
  28 #define  GPIO_IOC_OUT           _IOWR(GPIO_IOC_MAGIC, 3, struct gpio_ioctl)
  29 #define  GPIO_IOC_IN            _IOWR(GPIO_IOC_MAGIC, 4, struct gpio_ioctl)
  30 #define  GPIO_IOC_OUTEN         _IOWR(GPIO_IOC_MAGIC, 5, struct gpio_ioctl)
  31
  32 #endif  /* _linux_gpio_h_ */