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 *
| 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 279553 2015-03-02 22:28:47Z loos $
| 26 * $FreeBSD: head/sys/dev/gpio/gpiobusvar.h 279622 2015-03-05 03:11:47Z 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#include <sys/rman.h>
38
39#ifdef FDT
40#include <dev/ofw/ofw_bus_subr.h>
41#endif
42
43#include "gpio_if.h"
44
45#ifdef FDT
46#define GPIOBUS_IVAR(d) (struct gpiobus_ivar *) \
47 &((struct ofw_gpiobus_devinfo *)device_get_ivars(d))->opd_dinfo
48#else
49#define GPIOBUS_IVAR(d) (struct gpiobus_ivar *) device_get_ivars(d)
50#endif
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)
59
60#define GPIOBUS_WAIT 1
61#define GPIOBUS_DONTWAIT 2
62
63struct gpiobus_softc
64{
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 */
72};
73
74struct gpiobus_pin
75{
76 device_t dev; /* gpio device */
77 uint32_t flags; /* pin flags */
78 uint32_t pin; /* pin number */
79};
80
81struct gpiobus_ivar
82{
83 struct resource_list rl; /* isr resource list */
84 uint32_t npins; /* pins total */
85 uint32_t *flags; /* pins flags */
86 uint32_t *pins; /* pins map */
87};
88
89#ifdef FDT
90struct ofw_gpiobus_devinfo {
91 struct gpiobus_ivar opd_dinfo;
92 struct ofw_bus_devinfo opd_obdinfo;
93};
94
95static __inline int
96gpio_map_gpios(device_t bus, phandle_t dev, phandle_t gparent, int gcells,
97 pcell_t *gpios, uint32_t *pin, uint32_t *flags)
98{
99 return (GPIO_MAP_GPIOS(bus, dev, gparent, gcells, gpios, pin, flags));
100}
101
102device_t ofw_gpiobus_add_fdt_child(device_t, const char *, phandle_t);
103int ofw_gpiobus_parse_gpios(device_t, char *, struct gpiobus_pin **);
104void ofw_gpiobus_register_provider(device_t);
105void ofw_gpiobus_unregister_provider(device_t);
106#endif
107int gpio_check_flags(uint32_t, uint32_t);
108device_t gpiobus_attach_bus(device_t);
109int gpiobus_detach_bus(device_t);
110int gpiobus_init_softc(device_t);
111int gpiobus_alloc_ivars(struct gpiobus_ivar *);
112void gpiobus_free_ivars(struct gpiobus_ivar *);
| 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#include <sys/rman.h>
38
39#ifdef FDT
40#include <dev/ofw/ofw_bus_subr.h>
41#endif
42
43#include "gpio_if.h"
44
45#ifdef FDT
46#define GPIOBUS_IVAR(d) (struct gpiobus_ivar *) \
47 &((struct ofw_gpiobus_devinfo *)device_get_ivars(d))->opd_dinfo
48#else
49#define GPIOBUS_IVAR(d) (struct gpiobus_ivar *) device_get_ivars(d)
50#endif
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)
59
60#define GPIOBUS_WAIT 1
61#define GPIOBUS_DONTWAIT 2
62
63struct gpiobus_softc
64{
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 */
72};
73
74struct gpiobus_pin
75{
76 device_t dev; /* gpio device */
77 uint32_t flags; /* pin flags */
78 uint32_t pin; /* pin number */
79};
80
81struct gpiobus_ivar
82{
83 struct resource_list rl; /* isr resource list */
84 uint32_t npins; /* pins total */
85 uint32_t *flags; /* pins flags */
86 uint32_t *pins; /* pins map */
87};
88
89#ifdef FDT
90struct ofw_gpiobus_devinfo {
91 struct gpiobus_ivar opd_dinfo;
92 struct ofw_bus_devinfo opd_obdinfo;
93};
94
95static __inline int
96gpio_map_gpios(device_t bus, phandle_t dev, phandle_t gparent, int gcells,
97 pcell_t *gpios, uint32_t *pin, uint32_t *flags)
98{
99 return (GPIO_MAP_GPIOS(bus, dev, gparent, gcells, gpios, pin, flags));
100}
101
102device_t ofw_gpiobus_add_fdt_child(device_t, const char *, phandle_t);
103int ofw_gpiobus_parse_gpios(device_t, char *, struct gpiobus_pin **);
104void ofw_gpiobus_register_provider(device_t);
105void ofw_gpiobus_unregister_provider(device_t);
106#endif
107int gpio_check_flags(uint32_t, uint32_t);
108device_t gpiobus_attach_bus(device_t);
109int gpiobus_detach_bus(device_t);
110int gpiobus_init_softc(device_t);
111int gpiobus_alloc_ivars(struct gpiobus_ivar *);
112void gpiobus_free_ivars(struct gpiobus_ivar *);
|
113int gpiobus_map_pin(device_t, device_t, uint32_t);
| 113int gpiobus_map_pin(device_t, uint32_t);
|
114
115extern driver_t gpiobus_driver;
116
117#endif /* __GPIOBUS_H__ */
| 114
115extern driver_t gpiobus_driver;
116
117#endif /* __GPIOBUS_H__ */
|