1 /*- 2 * Copyright (c) 1998, 2001 Nicolas Souchu 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: src/sys/dev/smbus/smbus.c,v 1.18.10.4 2006/09/26 18:44:56 jhb Exp $ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/kernel.h> 32 #include <sys/module.h> 33 #include <sys/bus.h> 34 35 #include "smbconf.h" 36 #include "smbus.h" 37 38 /* 39 * Autoconfiguration and support routines for System Management bus 40 */ 41 42 /* 43 * Device methods 44 */ 45 static int smbus_probe(device_t); 46 static int smbus_attach(device_t); 47 static int smbus_detach(device_t); 48 49 static device_method_t smbus_methods[] = { 50 /* device interface */ 51 DEVMETHOD(device_probe, smbus_probe), 52 DEVMETHOD(device_attach, smbus_attach), 53 DEVMETHOD(device_detach, smbus_detach), 54 55 /* bus interface */ 56 DEVMETHOD(bus_add_child, bus_generic_add_child), 57 DEVMETHOD(bus_print_child, bus_generic_print_child), 58 59 DEVMETHOD_END 60 }; 61 62 driver_t smbus_driver = { 63 "smbus", 64 smbus_methods, 65 sizeof(struct smbus_softc), 66 }; 67 68 devclass_t smbus_devclass; 69 70 /* 71 * At 'probe' time, we add all the devices which we know about to the 72 * bus. The generic attach routine will probe and attach them if they 73 * are alive. 74 */ 75 static int 76 smbus_probe(device_t dev) 77 { 78 device_set_desc(dev, "System Management Bus"); 79 80 return (0); 81 } 82 83 static int 84 smbus_attach(device_t dev) 85 { 86 bus_generic_probe(dev); 87 bus_generic_attach(dev); 88 89 return (0); 90 } 91 92 static int 93 smbus_detach(device_t dev) 94 { 95 int error; 96 97 error = bus_generic_detach(dev); 98 if (error) 99 return (error); 100 101 return (0); 102 } 103 104 void 105 smbus_generic_intr(device_t dev, u_char devaddr, char low, char high) 106 { 107 } 108 109 MODULE_VERSION(smbus, SMBUS_MODVER); 110