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
etherswitch_identify(driver_t * driver,device_t parent)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
etherswitch_probe(device_t dev)92 etherswitch_probe(device_t dev)
93 {
94 device_set_desc(dev, "Switch controller");
95
96 return (0);
97 }
98
99 static int
etherswitch_attach(device_t dev)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
etherswitch_detach(device_t dev)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
etherswitchioctl(struct cdev * cdev,u_long cmd,caddr_t data,int flags,struct thread * td)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