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-rw-r--r--include/asm-arm/arch-omap/gpio.h69
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diff --git a/include/asm-arm/arch-omap/gpio.h b/include/asm-arm/arch-omap/gpio.h
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1/*
2 * linux/include/asm-arm/arch-omap/gpio.h
3 *
4 * OMAP GPIO handling defines and functions
5 *
6 * Copyright (C) 2003 Nokia Corporation
7 *
8 * Written by Juha Yrjölä <juha.yrjola@nokia.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26#ifndef __ASM_ARCH_OMAP_GPIO_H
27#define __ASM_ARCH_OMAP_GPIO_H
28
29#include <asm/arch/hardware.h>
30#include <asm/arch/irqs.h>
31#include <asm/io.h>
32
33#define OMAP_MPUIO_BASE 0xfffb5000
34#define OMAP_MPUIO_INPUT_LATCH 0x00
35#define OMAP_MPUIO_OUTPUT 0x04
36#define OMAP_MPUIO_IO_CNTL 0x08
37#define OMAP_MPUIO_KBR_LATCH 0x10
38#define OMAP_MPUIO_KBC 0x14
39#define OMAP_MPUIO_GPIO_EVENT_MODE 0x18
40#define OMAP_MPUIO_GPIO_INT_EDGE 0x1c
41#define OMAP_MPUIO_KBD_INT 0x20
42#define OMAP_MPUIO_GPIO_INT 0x24
43#define OMAP_MPUIO_KBD_MASKIT 0x28
44#define OMAP_MPUIO_GPIO_MASKIT 0x2c
45#define OMAP_MPUIO_GPIO_DEBOUNCING 0x30
46#define OMAP_MPUIO_LATCH 0x34
47
48#define OMAP_MPUIO(nr) (OMAP_MAX_GPIO_LINES + (nr))
49#define OMAP_GPIO_IS_MPUIO(nr) ((nr) >= OMAP_MAX_GPIO_LINES)
50
51#define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ? \
52 IH_MPUIO_BASE + ((nr) & 0x0f) : \
53 IH_GPIO_BASE + ((nr) & 0x3f))
54
55/* For EDGECTRL */
56#define OMAP_GPIO_NO_EDGE 0x00
57#define OMAP_GPIO_FALLING_EDGE 0x01
58#define OMAP_GPIO_RISING_EDGE 0x02
59#define OMAP_GPIO_BOTH_EDGES 0x03
60
61extern int omap_gpio_init(void); /* Call from board init only */
62extern int omap_request_gpio(int gpio);
63extern void omap_free_gpio(int gpio);
64extern void omap_set_gpio_direction(int gpio, int is_input);
65extern void omap_set_gpio_dataout(int gpio, int enable);
66extern int omap_get_gpio_datain(int gpio);
67extern void omap_set_gpio_edge_ctrl(int gpio, int edge);
68
69#endif