release/src-rt/linux/linux-2.6/include/asm-mips/gpio.h

   1 /*
   2  * Generic GPIO Interface
   3  *
   4  * Copyright (C) 2009, 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: gpio.h,v 1.1 2009/11/02 19:10:00 Exp $
  13  */
  14
  15 int gpio_direction_input(unsigned pin);
  16 int gpio_direction_output(unsigned pin, int value);
  17
  18 int gpio_get_value(unsigned int gpio);
  19 void gpio_set_value(unsigned int gpio, int value);
  20
  21 int gpio_request(unsigned int gpio, const char *label);
  22 void gpio_free(unsigned int gpio);