include/linux/ite_gpio.h

   1 /*
   2  * FILE NAME ite_gpio.h
   3  *
   4  * BRIEF MODULE DESCRIPTION
   5  *      Generic gpio.
   6  *
   7  *  Author: MontaVista Software, Inc.  <source@mvista.com>
   8  *          Hai-Pao Fan <haipao@mvista.com>
   9  *
  10  * Copyright 2001 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 __ITE_GPIO_H
  34 #define __ITE_GPIO_H
  35
  36 #include <linux/ioctl.h>
  37
  38 struct ite_gpio_ioctl_data {
  39         __u32 device;
  40         __u32 mask;
  41         __u32 data;
  42 };
  43
  44 #define ITE_GPIO_IOCTL_BASE     'Z'
  45
  46 #define ITE_GPIO_IN             _IOWR(ITE_GPIO_IOCTL_BASE, 0, struct ite_gpio_ioctl_data)
  47 #define ITE_GPIO_OUT            _IOW (ITE_GPIO_IOCTL_BASE, 1, struct ite_gpio_ioctl_data)
  48 #define ITE_GPIO_INT_CTRL       _IOW (ITE_GPIO_IOCTL_BASE, 2, struct ite_gpio_ioctl_data)
  49 #define ITE_GPIO_IN_STATUS      _IOW (ITE_GPIO_IOCTL_BASE, 3, struct ite_gpio_ioctl_data)
  50 #define ITE_GPIO_OUT_STATUS     _IOW (ITE_GPIO_IOCTL_BASE, 4, struct ite_gpio_ioctl_data)
  51 #define ITE_GPIO_GEN_CTRL       _IOW (ITE_GPIO_IOCTL_BASE, 5, struct ite_gpio_ioctl_data)
  52 #define ITE_GPIO_INT_WAIT       _IOW (ITE_GPIO_IOCTL_BASE, 6, struct ite_gpio_ioctl_data)
  53
  54 #define ITE_GPIO_PORTA  0x01
  55 #define ITE_GPIO_PORTB  0x02
  56 #define ITE_GPIO_PORTC  0x04
  57
  58 extern int ite_gpio_in(__u32 device, __u32 mask, volatile __u32 *data);
  59 extern int ite_gpio_out(__u32 device, __u32 mask, __u32 data);
  60 extern int ite_gpio_int_ctrl(__u32 device, __u32 mask, __u32 data);
  61 extern int ite_gpio_in_status(__u32 device, __u32 mask, volatile __u32 *data);
  62 extern int ite_gpio_out_status(__u32 device, __u32 mask, __u32 data);
  63 extern int ite_gpio_gen_ctrl(__u32 device, __u32 mask, __u32 data);
  64 extern int ite_gpio_int_wait(__u32 device, __u32 mask, __u32 data);
  65
  66 #endif