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/*-
* Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
* Copyright (c) 2009, Luiz Otavio O Souza.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef __AR71XX_GPIOVAR_H__
#define __AR71XX_GPIOVAR_H__
#define GPIO_LOCK(_sc) mtx_lock(&(_sc)->gpio_mtx)
#define GPIO_UNLOCK(_sc) mtx_unlock(&(_sc)->gpio_mtx)
#define GPIO_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->gpio_mtx, MA_OWNED)
/*
* register space access macros
*/
#define GPIO_WRITE(sc, reg, val) do { \
bus_write_4(sc->gpio_mem_res, (reg), (val)); \
} while (0)
#define GPIO_READ(sc, reg) bus_read_4(sc->gpio_mem_res, (reg))
#define GPIO_SET_BITS(sc, reg, bits) \
GPIO_WRITE(sc, reg, GPIO_READ(sc, (reg)) | (bits))
#define GPIO_CLEAR_BITS(sc, reg, bits) \
GPIO_WRITE(sc, reg, GPIO_READ(sc, (reg)) & ~(bits))
#define AR71XX_GPIO_PINS 12
struct ar71xx_gpio_softc {
device_t dev;
struct mtx gpio_mtx;
struct resource *gpio_mem_res;
int gpio_mem_rid;
struct resource *gpio_irq_res;
int gpio_irq_rid;
void *gpio_ih;
int gpio_npins;
struct gpio_pin gpio_pins[AR71XX_GPIO_PINS];
};
#endif /* __AR71XX_GPIOVAR_H__ */
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