2 * Copyright (c) 2009 Oleksandr Tymoshenko <gonzo@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
33 #include "opt_platform.h"
36 #include <sys/mutex.h>
40 #include <dev/ofw/ofw_bus_subr.h>
46 #define GPIOBUS_IVAR(d) (struct gpiobus_ivar *) \
47 &((struct ofw_gpiobus_devinfo *)device_get_ivars(d))->opd_dinfo
49 #define GPIOBUS_IVAR(d) (struct gpiobus_ivar *) device_get_ivars(d)
51 #define GPIOBUS_SOFTC(d) (struct gpiobus_softc *) device_get_softc(d)
52 #define GPIOBUS_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
53 #define GPIOBUS_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
54 #define GPIOBUS_LOCK_INIT(_sc) mtx_init(&_sc->sc_mtx, \
55 device_get_nameunit(_sc->sc_dev), "gpiobus", MTX_DEF)
56 #define GPIOBUS_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx)
57 #define GPIOBUS_ASSERT_LOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_OWNED)
58 #define GPIOBUS_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED)
60 #define GPIOBUS_WAIT 1
61 #define GPIOBUS_DONTWAIT 2
65 struct mtx sc_mtx; /* bus mutex */
66 struct rman sc_intr_rman; /* isr resources */
67 device_t sc_busdev; /* bus device */
68 device_t sc_owner; /* bus owner */
69 device_t sc_dev; /* driver device */
70 int sc_npins; /* total pins on bus */
71 int *sc_pins_mapped; /* mark mapped pins */
76 struct resource_list rl; /* isr resource list */
77 uint32_t npins; /* pins total */
78 uint32_t *flags; /* pins flags */
79 uint32_t *pins; /* pins map */
83 struct ofw_gpiobus_devinfo {
84 struct gpiobus_ivar opd_dinfo;
85 struct ofw_bus_devinfo opd_obdinfo;
89 gpio_map_gpios(device_t bus, phandle_t dev, phandle_t gparent, int gcells,
90 pcell_t *gpios, uint32_t *pin, uint32_t *flags)
92 return (GPIO_MAP_GPIOS(bus, dev, gparent, gcells, gpios, pin, flags));
95 device_t ofw_gpiobus_add_fdt_child(device_t, phandle_t);
97 int gpio_check_flags(uint32_t, uint32_t);
98 int gpiobus_init_softc(device_t);
100 extern driver_t gpiobus_driver;
102 #endif /* __GPIOBUS_H__ */