gpiobusvar.h revision 265289
1/*- 2 * Copyright (c) 2009 Oleksandr Tymoshenko <gonzo@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/gpio/gpiobusvar.h 265289 2014-05-03 20:33:00Z loos $ 27 * 28 */ 29 30#ifndef __GPIOBUS_H__ 31#define __GPIOBUS_H__ 32 33#include "opt_platform.h" 34 35#include <sys/lock.h> 36#include <sys/mutex.h> 37 38#ifdef FDT 39#include <dev/ofw/ofw_bus_subr.h> 40#endif 41 42#define GPIOBUS_IVAR(d) (struct gpiobus_ivar *) device_get_ivars(d) 43#define GPIOBUS_SOFTC(d) (struct gpiobus_softc *) device_get_softc(d) 44#define GPIOBUS_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 45#define GPIOBUS_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 46#define GPIOBUS_LOCK_INIT(_sc) mtx_init(&_sc->sc_mtx, \ 47 device_get_nameunit(_sc->sc_dev), "gpiobus", MTX_DEF) 48#define GPIOBUS_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx) 49#define GPIOBUS_ASSERT_LOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_OWNED) 50#define GPIOBUS_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED) 51 52struct gpiobus_softc 53{ 54 struct mtx sc_mtx; /* bus mutex */ 55 device_t sc_busdev; /* bus device */ 56 device_t sc_owner; /* bus owner */ 57 device_t sc_dev; /* driver device */ 58 int sc_npins; /* total pins on bus */ 59 int *sc_pins_mapped; /* mark mapped pins */ 60}; 61 62struct gpiobus_ivar 63{ 64 uint32_t npins; /* pins total */ 65 uint32_t *flags; /* pins flags */ 66 uint32_t *pins; /* pins map */ 67}; 68 69#ifdef FDT 70struct ofw_gpiobus_devinfo { 71 struct gpiobus_ivar opd_dinfo; 72 struct ofw_bus_devinfo opd_obdinfo; 73}; 74 75device_t ofw_gpiobus_add_fdt_child(device_t, phandle_t); 76#endif 77void gpiobus_print_pins(struct gpiobus_ivar *); 78 79extern driver_t gpiobus_driver; 80 81#endif /* __GPIOBUS_H__ */ 82