arch/mips/include/asm/mach-au1x00/au1000_gpio.h

   1 /*
   2  * FILE NAME au1000_gpio.h
   3  *
   4  * BRIEF MODULE DESCRIPTION
   5  *      API to Alchemy Au1xx0 GPIO device.
   6  *
   7  *  Author: MontaVista Software, Inc.  <source@mvista.com>
   8  *          Steve Longerbeam
   9  *
  10  * Copyright 2001, 2008 MontaVista Software Inc.
  11  *
  12  *  This program is free software; you can redistribute  it and/or modify it
  13  *  under  the terms of  the GNU General  Public License as published by the
  14  *  Free Software Foundation;  either version 2 of the  License, or (at your
  15  *  option) any later version.
  16  *
  17  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  18  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  19  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  20  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  21  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  23  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  24  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  25  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  *  You should have received a copy of the  GNU General Public License along
  29  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  30  *  675 Mass Ave, Cambridge, MA 02139, USA.
  31  */
  32
  33 #ifndef __AU1000_GPIO_H
  34 #define __AU1000_GPIO_H
  35
  36 #include <linux/ioctl.h>
  37
  38 #define AU1000GPIO_IOC_MAGIC 'A'
  39
  40 #define AU1000GPIO_IN           _IOR(AU1000GPIO_IOC_MAGIC, 0, int)
  41 #define AU1000GPIO_SET          _IOW(AU1000GPIO_IOC_MAGIC, 1, int)
  42 #define AU1000GPIO_CLEAR        _IOW(AU1000GPIO_IOC_MAGIC, 2, int)
  43 #define AU1000GPIO_OUT          _IOW(AU1000GPIO_IOC_MAGIC, 3, int)
  44 #define AU1000GPIO_TRISTATE     _IOW(AU1000GPIO_IOC_MAGIC, 4, int)
  45 #define AU1000GPIO_AVAIL_MASK   _IOR(AU1000GPIO_IOC_MAGIC, 5, int)
  46
  47 #ifdef __KERNEL__
  48 extern u32 get_au1000_avail_gpio_mask(void);
  49 extern int au1000gpio_tristate(u32 data);
  50 extern int au1000gpio_in(u32 *data);
  51 extern int au1000gpio_set(u32 data);
  52 extern int au1000gpio_clear(u32 data);
  53 extern int au1000gpio_out(u32 data);
  54 #endif
  55
  56 #endif