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 * 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 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 <dev/smbus/smbconf.h> 38 #include <dev/smbus/smbus.h> 39 40 /* 41 * Autoconfiguration and support routines for the Philips serial I2C bus 42 */ 43 44 #define DEVTOSMBUS(dev) ((struct smbus_device*)device_get_ivars(dev)) 45 46 static devclass_t smbus_devclass; 47 48 /* 49 * Device methods 50 */ 51 static int smbus_probe(device_t); 52 static int smbus_attach(device_t); 53 static int smbus_add_child(device_t dev, int order, const char *name, int unit); 54 55 static device_method_t smbus_methods[] = { 56 /* device interface */ 57 DEVMETHOD(device_probe, smbus_probe), 58 DEVMETHOD(device_attach, smbus_attach), 59 DEVMETHOD(device_detach, bus_generic_detach), 60 61 /* bus interface */ 62 DEVMETHOD(bus_add_child, smbus_add_child), 63 DEVMETHOD(bus_print_child, bus_generic_print_child), 64 65 { 0, 0 } 66 }; 67 68 static driver_t smbus_driver = { 69 "smbus", 70 smbus_methods, 71 sizeof(struct smbus_softc), 72 }; 73 74 /* 75 * At 'probe' time, we add all the devices which we know about to the 76 * bus. The generic attach routine will probe and attach them if they 77 * are alive. 78 */ 79 static int 80 smbus_probe(device_t dev) 81 { 82 device_set_desc(dev, "System Management Bus"); 83 84 return (0); 85 } 86 87 static int 88 smbus_attach(device_t dev) 89 { 90 device_add_child(dev, NULL, -1); 91 bus_generic_attach(dev); 92 93 return (0); 94 } 95 96 static int 97 smbus_add_child(device_t dev, int order, const char *name, int unit) 98 { 99 device_add_child_ordered(dev, order, name, unit); 100 101 bus_generic_attach(dev); 102 103 return (0); 104 } 105 106 void 107 smbus_generic_intr(device_t dev, u_char devaddr, char low, char high) 108 { 109 return; 110 } 111 112 DRIVER_MODULE(smbus, iicsmb, smbus_driver, smbus_devclass, 0, 0); 113 DRIVER_MODULE(smbus, bktr, smbus_driver, smbus_devclass, 0, 0); 114 DRIVER_MODULE(smbus, intsmb, smbus_driver, smbus_devclass, 0, 0); 115 DRIVER_MODULE(smbus, alpm, smbus_driver, smbus_devclass, 0, 0); 116 DRIVER_MODULE(smbus, ichsmb, smbus_driver, smbus_devclass, 0, 0); 117 DRIVER_MODULE(smbus, amdpm, smbus_driver, smbus_devclass, 0, 0); 118 DRIVER_MODULE(smbus, viapropm, smbus_driver, smbus_devclass, 0, 0); 119 MODULE_VERSION(smbus, SMBUS_MODVER); 120