1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2011-2012 Stefan Bethke. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <sys/param.h> 32 #include <sys/bus.h> 33 #include <sys/conf.h> 34 #include <sys/fcntl.h> 35 #include <sys/kernel.h> 36 #include <sys/malloc.h> 37 #include <sys/module.h> 38 #include <sys/socket.h> 39 #include <sys/sx.h> 40 #include <sys/systm.h> 41 #include <sys/uio.h> 42 43 #include <net/if.h> 44 45 #include <dev/etherswitch/etherswitch.h> 46 47 #include "etherswitch_if.h" 48 49 struct etherswitch_softc { 50 device_t sc_dev; 51 struct cdev *sc_devnode; 52 }; 53 54 static int etherswitch_probe(device_t); 55 static int etherswitch_attach(device_t); 56 static int etherswitch_detach(device_t); 57 static void etherswitch_identify(driver_t *driver, device_t parent); 58 59 static device_method_t etherswitch_methods[] = { 60 /* device interface */ 61 DEVMETHOD(device_identify, etherswitch_identify), 62 DEVMETHOD(device_probe, etherswitch_probe), 63 DEVMETHOD(device_attach, etherswitch_attach), 64 DEVMETHOD(device_detach, etherswitch_detach), 65 66 DEVMETHOD_END 67 }; 68 69 driver_t etherswitch_driver = { 70 "etherswitch", 71 etherswitch_methods, 72 sizeof(struct etherswitch_softc), 73 }; 74 75 static d_ioctl_t etherswitchioctl; 76 77 static struct cdevsw etherswitch_cdevsw = { 78 .d_version = D_VERSION, 79 .d_flags = D_TRACKCLOSE, 80 .d_ioctl = etherswitchioctl, 81 .d_name = "etherswitch", 82 }; 83 84 static void 85 etherswitch_identify(driver_t *driver, device_t parent) 86 { 87 if (device_find_child(parent, "etherswitch", -1) == NULL) 88 BUS_ADD_CHILD(parent, 0, "etherswitch", -1); 89 } 90 91 static int 92 etherswitch_probe(device_t dev) 93 { 94 device_set_desc(dev, "Switch controller"); 95 96 return (0); 97 } 98 99 static int 100 etherswitch_attach(device_t dev) 101 { 102 int err; 103 struct etherswitch_softc *sc; 104 struct make_dev_args devargs; 105 106 sc = device_get_softc(dev); 107 sc->sc_dev = dev; 108 make_dev_args_init(&devargs); 109 devargs.mda_devsw = ðerswitch_cdevsw; 110 devargs.mda_uid = UID_ROOT; 111 devargs.mda_gid = GID_WHEEL; 112 devargs.mda_mode = 0600; 113 devargs.mda_si_drv1 = sc; 114 err = make_dev_s(&devargs, &sc->sc_devnode, "etherswitch%d", 115 device_get_unit(dev)); 116 if (err != 0) { 117 device_printf(dev, "failed to create character device\n"); 118 return (ENXIO); 119 } 120 121 return (0); 122 } 123 124 static int 125 etherswitch_detach(device_t dev) 126 { 127 struct etherswitch_softc *sc = (struct etherswitch_softc *)device_get_softc(dev); 128 129 if (sc->sc_devnode) 130 destroy_dev(sc->sc_devnode); 131 132 return (0); 133 } 134 135 static int 136 etherswitchioctl(struct cdev *cdev, u_long cmd, caddr_t data, int flags, struct thread *td) 137 { 138 struct etherswitch_softc *sc = cdev->si_drv1; 139 device_t dev = sc->sc_dev; 140 device_t etherswitch = device_get_parent(dev); 141 etherswitch_conf_t conf; 142 etherswitch_info_t *info; 143 etherswitch_reg_t *reg; 144 etherswitch_phyreg_t *phyreg; 145 etherswitch_portid_t *portid; 146 int error = 0; 147 148 switch (cmd) { 149 case IOETHERSWITCHGETINFO: 150 info = ETHERSWITCH_GETINFO(etherswitch); 151 bcopy(info, data, sizeof(etherswitch_info_t)); 152 break; 153 154 case IOETHERSWITCHGETREG: 155 reg = (etherswitch_reg_t *)data; 156 ETHERSWITCH_LOCK(etherswitch); 157 reg->val = ETHERSWITCH_READREG(etherswitch, reg->reg); 158 ETHERSWITCH_UNLOCK(etherswitch); 159 break; 160 161 case IOETHERSWITCHSETREG: 162 reg = (etherswitch_reg_t *)data; 163 ETHERSWITCH_LOCK(etherswitch); 164 error = ETHERSWITCH_WRITEREG(etherswitch, reg->reg, reg->val); 165 ETHERSWITCH_UNLOCK(etherswitch); 166 break; 167 168 case IOETHERSWITCHGETPORT: 169 error = ETHERSWITCH_GETPORT(etherswitch, (etherswitch_port_t *)data); 170 break; 171 172 case IOETHERSWITCHSETPORT: 173 error = ETHERSWITCH_SETPORT(etherswitch, (etherswitch_port_t *)data); 174 break; 175 176 case IOETHERSWITCHGETVLANGROUP: 177 error = ETHERSWITCH_GETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data); 178 break; 179 180 case IOETHERSWITCHSETVLANGROUP: 181 error = ETHERSWITCH_SETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data); 182 break; 183 184 case IOETHERSWITCHGETPHYREG: 185 phyreg = (etherswitch_phyreg_t *)data; 186 phyreg->val = ETHERSWITCH_READPHYREG(etherswitch, phyreg->phy, phyreg->reg); 187 break; 188 189 case IOETHERSWITCHSETPHYREG: 190 phyreg = (etherswitch_phyreg_t *)data; 191 error = ETHERSWITCH_WRITEPHYREG(etherswitch, phyreg->phy, phyreg->reg, phyreg->val); 192 break; 193 194 case IOETHERSWITCHGETCONF: 195 bzero(&conf, sizeof(etherswitch_conf_t)); 196 error = ETHERSWITCH_GETCONF(etherswitch, &conf); 197 bcopy(&conf, data, sizeof(etherswitch_conf_t)); 198 break; 199 200 case IOETHERSWITCHSETCONF: 201 error = ETHERSWITCH_SETCONF(etherswitch, (etherswitch_conf_t *)data); 202 break; 203 204 case IOETHERSWITCHFLUSHALL: 205 error = ETHERSWITCH_FLUSH_ALL(etherswitch); 206 break; 207 208 case IOETHERSWITCHFLUSHPORT: 209 portid = (etherswitch_portid_t *)data; 210 error = ETHERSWITCH_FLUSH_PORT(etherswitch, portid->es_port); 211 break; 212 213 case IOETHERSWITCHGETTABLE: 214 error = ETHERSWITCH_FETCH_TABLE(etherswitch, (void *) data); 215 break; 216 217 case IOETHERSWITCHGETTABLEENTRY: 218 error = ETHERSWITCH_FETCH_TABLE_ENTRY(etherswitch, (void *) data); 219 break; 220 221 default: 222 error = ENOTTY; 223 } 224 225 return (error); 226 } 227 228 MODULE_VERSION(etherswitch, 1); 229