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