arch/mips/include/asm/vr41xx/giu.h

   1 /*
   2  *  Include file for NEC VR4100 series General-purpose I/O Unit.
   3  *
   4  *  Copyright (C) 2005-2009  Yoichi Yuasa <yuasa@linux-mips.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #ifndef __NEC_VR41XX_GIU_H
  21 #define __NEC_VR41XX_GIU_H
  22
  23 /*
  24  * NEC VR4100 series GIU platform device IDs.
  25  */
  26 enum {
  27         GPIO_50PINS_PULLUPDOWN,
  28         GPIO_36PINS,
  29         GPIO_48PINS_EDGE_SELECT,
  30 };
  31
  32 typedef enum {
  33         IRQ_TRIGGER_LEVEL,
  34         IRQ_TRIGGER_EDGE,
  35         IRQ_TRIGGER_EDGE_FALLING,
  36         IRQ_TRIGGER_EDGE_RISING,
  37 } irq_trigger_t;
  38
  39 typedef enum {
  40         IRQ_SIGNAL_THROUGH,
  41         IRQ_SIGNAL_HOLD,
  42 } irq_signal_t;
  43
  44 extern void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger,
  45                                    irq_signal_t signal);
  46
  47 typedef enum {
  48         IRQ_LEVEL_LOW,
  49         IRQ_LEVEL_HIGH,
  50 } irq_level_t;
  51
  52 extern void vr41xx_set_irq_level(unsigned int pin, irq_level_t level);
  53
  54 typedef enum {
  55         GPIO_PULL_DOWN,
  56         GPIO_PULL_UP,
  57         GPIO_PULL_DISABLE,
  58 } gpio_pull_t;
  59
  60 extern int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull);
  61
  62 #endif /* __NEC_VR41XX_GIU_H */