1/*-
2 * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
3 * Copyright (c) 2009, Luiz Otavio O Souza.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice unmodified, this list of conditions, and the following
11 *    disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 *
30 */
31
32#ifndef __AR71XX_GPIOVAR_H__
33#define __AR71XX_GPIOVAR_H__
34
35#define GPIO_LOCK(_sc)		mtx_lock(&(_sc)->gpio_mtx)
36#define GPIO_UNLOCK(_sc)	mtx_unlock(&(_sc)->gpio_mtx)
37#define GPIO_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->gpio_mtx, MA_OWNED)
38
39/*
40 * register space access macros
41 */
42#define GPIO_WRITE(sc, reg, val)	do {	\
43		bus_write_4(sc->gpio_mem_res, (reg), (val)); \
44	} while (0)
45
46#define GPIO_READ(sc, reg)	 bus_read_4(sc->gpio_mem_res, (reg))
47
48#define GPIO_SET_BITS(sc, reg, bits)	\
49	GPIO_WRITE(sc, reg, GPIO_READ(sc, (reg)) | (bits))
50
51#define GPIO_CLEAR_BITS(sc, reg, bits)	\
52	GPIO_WRITE(sc, reg, GPIO_READ(sc, (reg)) & ~(bits))
53
54#define	AR71XX_GPIO_PINS	12
55#define	AR724X_GPIO_PINS	18
56#define	AR91XX_GPIO_PINS	22
57
58struct ar71xx_gpio_softc {
59	device_t		dev;
60	device_t		busdev;
61	struct mtx		gpio_mtx;
62	struct resource		*gpio_mem_res;
63	int			gpio_mem_rid;
64	struct resource		*gpio_irq_res;
65	int			gpio_irq_rid;
66	void			*gpio_ih;
67	int			gpio_npins;
68	struct gpio_pin		*gpio_pins;
69};
70
71#endif	/* __AR71XX_GPIOVAR_H__ */
72