2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2006 Kevin Lo. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/module.h>
36 #include <arm/xscale/ixp425/ixp425reg.h>
37 #include <arm/xscale/ixp425/ixp425var.h>
39 #include <dev/led/led.h>
41 #define GPIO_LED_STATUS 3
42 #define GPIO_LED_STATUS_BIT (1U << GPIO_LED_STATUS)
44 struct led_avila_softc {
46 bus_space_tag_t sc_iot;
47 bus_space_handle_t sc_gpio_ioh;
52 led_func(void *arg, int onoff)
54 struct led_avila_softc *sc = arg;
58 reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPOUTR);
60 reg &= ~GPIO_LED_STATUS_BIT;
62 reg |= GPIO_LED_STATUS_BIT;
63 GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPOUTR, reg);
68 led_avila_probe(device_t dev)
70 device_set_desc(dev, "Gateworks Avila Front Panel LED");
75 led_avila_attach(device_t dev)
77 struct led_avila_softc *sc = device_get_softc(dev);
78 struct ixp425_softc *sa = device_get_softc(device_get_parent(dev));
81 sc->sc_iot = sa->sc_iot;
82 sc->sc_gpio_ioh = sa->sc_gpio_ioh;
84 /* Configure LED GPIO pin as output */
85 GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPOER,
86 GPIO_CONF_READ_4(sc, IXP425_GPIO_GPOER) &~ GPIO_LED_STATUS_BIT);
88 sc->sc_led = led_create(led_func, sc, "gpioled");
90 led_func(sc, 1); /* Turn on LED */
96 led_avila_detach(device_t dev)
98 struct led_avila_softc *sc = device_get_softc(dev);
100 if (sc->sc_led != NULL)
101 led_destroy(sc->sc_led);
105 static device_method_t led_avila_methods[] = {
106 DEVMETHOD(device_probe, led_avila_probe),
107 DEVMETHOD(device_attach, led_avila_attach),
108 DEVMETHOD(device_detach, led_avila_detach),
113 static driver_t led_avila_driver = {
116 sizeof(struct led_avila_softc),
118 static devclass_t led_avila_devclass;
120 DRIVER_MODULE(led_avila, ixp, led_avila_driver, led_avila_devclass, 0, 0);