1/*- 2 * Copyright (c) 2006 Kevin Lo. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25#include <sys/cdefs.h>
| 1/*- 2 * Copyright (c) 2006 Kevin Lo. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25#include <sys/cdefs.h>
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26__FBSDID("$FreeBSD: head/sys/arm/xscale/ixp425/avila_led.c 164508 2006-11-22 12:57:17Z kevlo $");
| 26__FBSDID("$FreeBSD: head/sys/arm/xscale/ixp425/avila_led.c 186352 2008-12-20 03:26:09Z sam $");
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27 28#include <sys/param.h> 29#include <sys/systm.h> 30#include <sys/kernel.h> 31#include <sys/module.h> 32#include <sys/bus.h> 33 34#include <arm/xscale/ixp425/ixp425reg.h> 35#include <arm/xscale/ixp425/ixp425var.h> 36 37#include <dev/led/led.h> 38 39#define GPIO_LED_STATUS 3
| 27 28#include <sys/param.h> 29#include <sys/systm.h> 30#include <sys/kernel.h> 31#include <sys/module.h> 32#include <sys/bus.h> 33 34#include <arm/xscale/ixp425/ixp425reg.h> 35#include <arm/xscale/ixp425/ixp425var.h> 36 37#include <dev/led/led.h> 38 39#define GPIO_LED_STATUS 3
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40#define GPIO_LED_STATUS_BIT (1U << GPIO_LED_STATUS)
| 40#define GPIO_LED_STATUS_BIT (1U << GPIO_LED_STATUS)
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41
| 41
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42static struct cdev *gpioled; 43
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44struct led_avila_softc { 45 device_t sc_dev; 46 bus_space_tag_t sc_iot; 47 bus_space_handle_t sc_gpio_ioh;
| 42struct led_avila_softc { 43 device_t sc_dev; 44 bus_space_tag_t sc_iot; 45 bus_space_handle_t sc_gpio_ioh;
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| 46 struct cdev *sc_led;
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48}; 49
| 47}; 48
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50static struct led_avila_softc *led_avila_sc = NULL; 51
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52static void
| 49static void
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53led_func(void *unused, int onoff)
| 50led_func(void *arg, int onoff)
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54{
| 51{
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55 struct led_avila_softc *sc = led_avila_sc;
| 52 struct led_avila_softc *sc = arg;
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56 uint32_t reg; 57 58 reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPOUTR); 59 if (onoff) 60 reg &= ~GPIO_LED_STATUS_BIT; 61 else 62 reg |= GPIO_LED_STATUS_BIT; 63 GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPOUTR, reg); 64} 65 66static int 67led_avila_probe(device_t dev) 68{
| 53 uint32_t reg; 54 55 reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPOUTR); 56 if (onoff) 57 reg &= ~GPIO_LED_STATUS_BIT; 58 else 59 reg |= GPIO_LED_STATUS_BIT; 60 GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPOUTR, reg); 61} 62 63static int 64led_avila_probe(device_t dev) 65{
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69 device_set_desc(dev, "Gateworks Avila GPIO connected LED");
| 66 device_set_desc(dev, "Gateworks Avila Front Panel LED");
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70 return (0); 71} 72 73static int 74led_avila_attach(device_t dev) 75{ 76 struct led_avila_softc *sc = device_get_softc(dev); 77 struct ixp425_softc *sa = device_get_softc(device_get_parent(dev));
| 67 return (0); 68} 69 70static int 71led_avila_attach(device_t dev) 72{ 73 struct led_avila_softc *sc = device_get_softc(dev); 74 struct ixp425_softc *sa = device_get_softc(device_get_parent(dev));
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78 void *led = NULL; 79 uint32_t reg;
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80
| 75
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81 led_avila_sc = sc; 82
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83 sc->sc_dev = dev; 84 sc->sc_iot = sa->sc_iot; 85 sc->sc_gpio_ioh = sa->sc_gpio_ioh; 86 87 /* Configure LED GPIO pin as output */
| 76 sc->sc_dev = dev; 77 sc->sc_iot = sa->sc_iot; 78 sc->sc_gpio_ioh = sa->sc_gpio_ioh; 79 80 /* Configure LED GPIO pin as output */
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88 reg = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPOER); 89 reg &= ~GPIO_LED_STATUS_BIT; 90 GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPOER, reg);
| 81 GPIO_CONF_WRITE_4(sc, IXP425_GPIO_GPOER, 82 GPIO_CONF_READ_4(sc, IXP425_GPIO_GPOER) &~ GPIO_LED_STATUS_BIT);
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91
| 83
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92 gpioled = led_create(led_func, led, "gpioled");
| 84 sc->sc_led = led_create(led_func, sc, "gpioled");
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93
| 85
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94 /* Turn on LED */ 95 led_func(led, 1);
| 86 led_func(sc, 1); /* Turn on LED */
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96 97 return (0); 98} 99
| 87 88 return (0); 89} 90
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| 91static void 92led_avila_detach(device_t dev) 93{ 94 struct led_avila_softc *sc = device_get_softc(dev); 95 96 if (sc->sc_led != NULL) 97 led_destroy(sc->sc_led); 98} 99
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100static device_method_t led_avila_methods[] = { 101 DEVMETHOD(device_probe, led_avila_probe), 102 DEVMETHOD(device_attach, led_avila_attach),
| 100static device_method_t led_avila_methods[] = { 101 DEVMETHOD(device_probe, led_avila_probe), 102 DEVMETHOD(device_attach, led_avila_attach),
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| 103 DEVMETHOD(device_detach, led_avila_detach),
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103 104 {0, 0}, 105}; 106 107static driver_t led_avila_driver = { 108 "led_avila", 109 led_avila_methods, 110 sizeof(struct led_avila_softc), 111}; 112static devclass_t led_avila_devclass; 113 114DRIVER_MODULE(led_avila, ixp, led_avila_driver, led_avila_devclass, 0, 0);
| 104 105 {0, 0}, 106}; 107 108static driver_t led_avila_driver = { 109 "led_avila", 110 led_avila_methods, 111 sizeof(struct led_avila_softc), 112}; 113static devclass_t led_avila_devclass; 114 115DRIVER_MODULE(led_avila, ixp, led_avila_driver, led_avila_devclass, 0, 0);
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