1/*	$NetBSD$ */
2/*-
3 * Copyright (c) 2007 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Matt Thomas
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30#ifndef _ARM_IMX_IMXGRPIOVAR_H
31#define _ARM_IMX_IMXGRPIOVAR_H
32
33#include <sys/bus.h>
34#include <sys/device.h>
35#include <arm/imx/imxgpioreg.h>	/* for GPIO_NPINS */
36
37void imxgpio_attach_common(device_t, bus_space_tag_t, bus_space_handle_t,
38    int, int, int);
39/* defined imx[35]1_gpio.c */
40extern const int imxgpio_ngroups;
41int imxgpio_match(device_t, cfdata_t, void *);
42void imxgpio_attach(device_t, device_t, void *);
43
44
45#define	GPIO_NO(group, pin)	(((group) - 1) * GPIO_NPINS + (pin))
46#define	GPIO_MODULE(pin)	((pin) / GPIO_NPINS)
47
48/* in-kernel GPIO access utility functions */
49enum GPIO_DIRECTION {GPIO_DIR_IN, GPIO_DIR_OUT};
50void gpio_set_direction(u_int, enum GPIO_DIRECTION);
51void gpio_data_write(u_int, u_int);
52bool gpio_data_read(u_int);
53#endif	/* _ARM_IMX_IMXGRPIOVAR_H */
54