include/asm-mips/vr41xx/giu.h

   1 /*
   2  *  Include file for NEC VR4100 series General-purpose I/O Unit.
   3  *
   4  *  Copyright (C) 2005  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
   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 typedef enum {
  24         IRQ_TRIGGER_LEVEL,
  25         IRQ_TRIGGER_EDGE,
  26         IRQ_TRIGGER_EDGE_FALLING,
  27         IRQ_TRIGGER_EDGE_RISING,
  28 } irq_trigger_t;
  29
  30 typedef enum {
  31         IRQ_SIGNAL_THROUGH,
  32         IRQ_SIGNAL_HOLD,
  33 } irq_signal_t;
  34
  35 extern void vr41xx_set_irq_trigger(unsigned int pin, irq_trigger_t trigger, irq_signal_t signal);
  36
  37 typedef enum {
  38         IRQ_LEVEL_LOW,
  39         IRQ_LEVEL_HIGH,
  40 } irq_level_t;
  41
  42 extern void vr41xx_set_irq_level(unsigned int pin, irq_level_t level);
  43
  44 typedef enum {
  45         GPIO_DATA_LOW,
  46         GPIO_DATA_HIGH,
  47         GPIO_DATA_INVAL,
  48 } gpio_data_t;
  49
  50 extern gpio_data_t vr41xx_gpio_get_pin(unsigned int pin);
  51 extern int vr41xx_gpio_set_pin(unsigned int pin, gpio_data_t data);
  52
  53 typedef enum {
  54         GPIO_INPUT,
  55         GPIO_OUTPUT,
  56         GPIO_OUTPUT_DISABLE,
  57 } gpio_direction_t;
  58
  59 extern int vr41xx_gpio_set_direction(unsigned int pin, gpio_direction_t dir);
  60
  61 typedef enum {
  62         GPIO_PULL_DOWN,
  63         GPIO_PULL_UP,
  64         GPIO_PULL_DISABLE,
  65 } gpio_pull_t;
  66
  67 extern int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull);
  68
  69 #endif /* __NEC_VR41XX_GIU_H */