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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 /*
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, irq_signal_t signal);
45
46 typedef enum {
47         IRQ_LEVEL_LOW,
48         IRQ_LEVEL_HIGH,
49 } irq_level_t;
50
51 extern void vr41xx_set_irq_level(unsigned int pin, irq_level_t level);
52
53 typedef enum {
54         GPIO_DATA_LOW,
55         GPIO_DATA_HIGH,
56         GPIO_DATA_INVAL,
57 } gpio_data_t;
58
59 extern gpio_data_t vr41xx_gpio_get_pin(unsigned int pin);
60 extern int vr41xx_gpio_set_pin(unsigned int pin, gpio_data_t data);
61
62 typedef enum {
63         GPIO_INPUT,
64         GPIO_OUTPUT,
65         GPIO_OUTPUT_DISABLE,
66 } gpio_direction_t;
67
68 extern int vr41xx_gpio_set_direction(unsigned int pin, gpio_direction_t dir);
69
70 typedef enum {
71         GPIO_PULL_DOWN,
72         GPIO_PULL_UP,
73         GPIO_PULL_DISABLE,
74 } gpio_pull_t;
75
76 extern int vr41xx_gpio_pullupdown(unsigned int pin, gpio_pull_t pull);
77
78 #endif /* __NEC_VR41XX_GIU_H */