1/*- 2 * Copyright (c) 2008 Sam Leffler. 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) 2008 Sam Leffler. 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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27 28/* 29 * Gateworks Cambria Octal LED Latch driver. 30 */ 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#include <sys/module.h> 35#include <sys/bus.h> 36 37#include <machine/armreg.h> 38 39#include <arm/xscale/ixp425/ixp425reg.h> 40#include <arm/xscale/ixp425/ixp425var.h> 41 42#include <dev/led/led.h> 43 44struct led_softc { 45 device_t sc_dev; 46 bus_space_tag_t sc_iot; 47 bus_space_handle_t sc_ioh; 48 struct cdev *sc_leds[8]; 49 uint8_t sc_latch; 50}; 51 52static void 53update_latch(struct led_softc *sc, int bit, int onoff) 54{ 55 if (onoff) 56 sc->sc_latch &= ~bit; 57 else 58 sc->sc_latch |= bit; 59 bus_space_write_1(sc->sc_iot, sc->sc_ioh, 0, sc->sc_latch); 60} 61static void led_A(void *arg, int onoff) { update_latch(arg, 1<<0, onoff); } 62static void led_B(void *arg, int onoff) { update_latch(arg, 1<<1, onoff); } 63static void led_C(void *arg, int onoff) { update_latch(arg, 1<<2, onoff); } 64static void led_D(void *arg, int onoff) { update_latch(arg, 1<<3, onoff); } 65static void led_E(void *arg, int onoff) { update_latch(arg, 1<<4, onoff); } 66static void led_F(void *arg, int onoff) { update_latch(arg, 1<<5, onoff); } 67static void led_G(void *arg, int onoff) { update_latch(arg, 1<<6, onoff); } 68static void led_H(void *arg, int onoff) { update_latch(arg, 1<<7, onoff); } 69 70static int 71led_probe(device_t dev) 72{ 73 device_set_desc(dev, "Gateworks Octal LED Latch"); 74 return (0); 75} 76 77static int 78led_attach(device_t dev) 79{ 80 struct led_softc *sc = device_get_softc(dev); 81 struct ixp425_softc *sa = device_get_softc(device_get_parent(dev)); 82 83 sc->sc_dev = dev; 84 sc->sc_iot = sa->sc_iot; 85 /* NB: write anywhere works, use first location */ 86 if (bus_space_map(sc->sc_iot, CAMBRIA_OCTAL_LED_HWBASE, sizeof(uint8_t), 87 0, &sc->sc_ioh)) { 88 device_printf(dev, "cannot map LED latch (0x%lx)", 89 CAMBRIA_OCTAL_LED_HWBASE); 90 return ENXIO; 91 } 92 93 sc->sc_leds[0] = led_create(led_A, sc, "A"); 94 sc->sc_leds[1] = led_create(led_B, sc, "B"); 95 sc->sc_leds[2] = led_create(led_C, sc, "C"); 96 sc->sc_leds[3] = led_create(led_D, sc, "D"); 97 sc->sc_leds[4] = led_create(led_E, sc, "E"); 98 sc->sc_leds[5] = led_create(led_F, sc, "F"); 99 sc->sc_leds[6] = led_create(led_G, sc, "G"); 100 sc->sc_leds[7] = led_create(led_H, sc, "H"); 101 102 return 0; 103} 104 105static void 106led_detach(device_t dev) 107{ 108 struct led_softc *sc = device_get_softc(dev); 109 int i; 110 111 for (i = 0; i < 8; i++) { 112 struct cdev *led = sc->sc_leds[i]; 113 if (led != NULL) 114 led_destroy(led); 115 } 116} 117 118static device_method_t led_methods[] = { 119 DEVMETHOD(device_probe, led_probe), 120 DEVMETHOD(device_attach, led_attach), 121 DEVMETHOD(device_attach, led_detach), 122 123 {0, 0}, 124}; 125 126static driver_t led_driver = { 127 "led_cambria", 128 led_methods, 129 sizeof(struct led_softc), 130}; 131static devclass_t led_devclass; 132DRIVER_MODULE(led_cambria, ixp, led_driver, led_devclass, 0, 0);
| 27 28/* 29 * Gateworks Cambria Octal LED Latch driver. 30 */ 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#include <sys/module.h> 35#include <sys/bus.h> 36 37#include <machine/armreg.h> 38 39#include <arm/xscale/ixp425/ixp425reg.h> 40#include <arm/xscale/ixp425/ixp425var.h> 41 42#include <dev/led/led.h> 43 44struct led_softc { 45 device_t sc_dev; 46 bus_space_tag_t sc_iot; 47 bus_space_handle_t sc_ioh; 48 struct cdev *sc_leds[8]; 49 uint8_t sc_latch; 50}; 51 52static void 53update_latch(struct led_softc *sc, int bit, int onoff) 54{ 55 if (onoff) 56 sc->sc_latch &= ~bit; 57 else 58 sc->sc_latch |= bit; 59 bus_space_write_1(sc->sc_iot, sc->sc_ioh, 0, sc->sc_latch); 60} 61static void led_A(void *arg, int onoff) { update_latch(arg, 1<<0, onoff); } 62static void led_B(void *arg, int onoff) { update_latch(arg, 1<<1, onoff); } 63static void led_C(void *arg, int onoff) { update_latch(arg, 1<<2, onoff); } 64static void led_D(void *arg, int onoff) { update_latch(arg, 1<<3, onoff); } 65static void led_E(void *arg, int onoff) { update_latch(arg, 1<<4, onoff); } 66static void led_F(void *arg, int onoff) { update_latch(arg, 1<<5, onoff); } 67static void led_G(void *arg, int onoff) { update_latch(arg, 1<<6, onoff); } 68static void led_H(void *arg, int onoff) { update_latch(arg, 1<<7, onoff); } 69 70static int 71led_probe(device_t dev) 72{ 73 device_set_desc(dev, "Gateworks Octal LED Latch"); 74 return (0); 75} 76 77static int 78led_attach(device_t dev) 79{ 80 struct led_softc *sc = device_get_softc(dev); 81 struct ixp425_softc *sa = device_get_softc(device_get_parent(dev)); 82 83 sc->sc_dev = dev; 84 sc->sc_iot = sa->sc_iot; 85 /* NB: write anywhere works, use first location */ 86 if (bus_space_map(sc->sc_iot, CAMBRIA_OCTAL_LED_HWBASE, sizeof(uint8_t), 87 0, &sc->sc_ioh)) { 88 device_printf(dev, "cannot map LED latch (0x%lx)", 89 CAMBRIA_OCTAL_LED_HWBASE); 90 return ENXIO; 91 } 92 93 sc->sc_leds[0] = led_create(led_A, sc, "A"); 94 sc->sc_leds[1] = led_create(led_B, sc, "B"); 95 sc->sc_leds[2] = led_create(led_C, sc, "C"); 96 sc->sc_leds[3] = led_create(led_D, sc, "D"); 97 sc->sc_leds[4] = led_create(led_E, sc, "E"); 98 sc->sc_leds[5] = led_create(led_F, sc, "F"); 99 sc->sc_leds[6] = led_create(led_G, sc, "G"); 100 sc->sc_leds[7] = led_create(led_H, sc, "H"); 101 102 return 0; 103} 104 105static void 106led_detach(device_t dev) 107{ 108 struct led_softc *sc = device_get_softc(dev); 109 int i; 110 111 for (i = 0; i < 8; i++) { 112 struct cdev *led = sc->sc_leds[i]; 113 if (led != NULL) 114 led_destroy(led); 115 } 116} 117 118static device_method_t led_methods[] = { 119 DEVMETHOD(device_probe, led_probe), 120 DEVMETHOD(device_attach, led_attach), 121 DEVMETHOD(device_attach, led_detach), 122 123 {0, 0}, 124}; 125 126static driver_t led_driver = { 127 "led_cambria", 128 led_methods, 129 sizeof(struct led_softc), 130}; 131static devclass_t led_devclass; 132DRIVER_MODULE(led_cambria, ixp, led_driver, led_devclass, 0, 0);
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