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[linux-2.6.git] / 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 */