1 /*- 2 * Copyright (c) 2011-2012 Stefan Bethke. 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 * $FreeBSD$ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/bus.h> 31 #include <sys/conf.h> 32 #include <sys/fcntl.h> 33 #include <sys/kernel.h> 34 #include <sys/malloc.h> 35 #include <sys/module.h> 36 #include <sys/socket.h> 37 #include <sys/sx.h> 38 #include <sys/systm.h> 39 #include <sys/uio.h> 40 41 #include <net/if.h> 42 43 #include <dev/etherswitch/etherswitch.h> 44 45 #include "etherswitch_if.h" 46 47 struct etherswitch_softc { 48 device_t sc_dev; 49 struct cdev *sc_devnode; 50 }; 51 52 static int etherswitch_probe(device_t); 53 static int etherswitch_attach(device_t); 54 static int etherswitch_detach(device_t); 55 static void etherswitch_identify(driver_t *driver, device_t parent); 56 57 devclass_t etherswitch_devclass; 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 int error = 0; 146 147 switch (cmd) { 148 case IOETHERSWITCHGETINFO: 149 info = ETHERSWITCH_GETINFO(etherswitch); 150 bcopy(info, data, sizeof(etherswitch_info_t)); 151 break; 152 153 case IOETHERSWITCHGETREG: 154 reg = (etherswitch_reg_t *)data; 155 ETHERSWITCH_LOCK(etherswitch); 156 reg->val = ETHERSWITCH_READREG(etherswitch, reg->reg); 157 ETHERSWITCH_UNLOCK(etherswitch); 158 break; 159 160 case IOETHERSWITCHSETREG: 161 reg = (etherswitch_reg_t *)data; 162 ETHERSWITCH_LOCK(etherswitch); 163 error = ETHERSWITCH_WRITEREG(etherswitch, reg->reg, reg->val); 164 ETHERSWITCH_UNLOCK(etherswitch); 165 break; 166 167 case IOETHERSWITCHGETPORT: 168 error = ETHERSWITCH_GETPORT(etherswitch, (etherswitch_port_t *)data); 169 break; 170 171 case IOETHERSWITCHSETPORT: 172 error = ETHERSWITCH_SETPORT(etherswitch, (etherswitch_port_t *)data); 173 break; 174 175 case IOETHERSWITCHGETVLANGROUP: 176 error = ETHERSWITCH_GETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data); 177 break; 178 179 case IOETHERSWITCHSETVLANGROUP: 180 error = ETHERSWITCH_SETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data); 181 break; 182 183 case IOETHERSWITCHGETPHYREG: 184 phyreg = (etherswitch_phyreg_t *)data; 185 phyreg->val = ETHERSWITCH_READPHYREG(etherswitch, phyreg->phy, phyreg->reg); 186 break; 187 188 case IOETHERSWITCHSETPHYREG: 189 phyreg = (etherswitch_phyreg_t *)data; 190 error = ETHERSWITCH_WRITEPHYREG(etherswitch, phyreg->phy, phyreg->reg, phyreg->val); 191 break; 192 193 case IOETHERSWITCHGETCONF: 194 bzero(&conf, sizeof(etherswitch_conf_t)); 195 error = ETHERSWITCH_GETCONF(etherswitch, &conf); 196 bcopy(&conf, data, sizeof(etherswitch_conf_t)); 197 break; 198 199 case IOETHERSWITCHSETCONF: 200 error = ETHERSWITCH_SETCONF(etherswitch, (etherswitch_conf_t *)data); 201 break; 202 203 default: 204 error = ENOTTY; 205 } 206 207 return (error); 208 } 209 210 MODULE_VERSION(etherswitch, 1); 211