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
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
47struct etherswitch_softc {
48	device_t sc_dev;
49	struct cdev *sc_devnode;
50};
51
52static int etherswitch_probe(device_t);
53static int etherswitch_attach(device_t);
54static int etherswitch_detach(device_t);
55static void etherswitch_identify(driver_t *driver, device_t parent);
56
57static device_method_t etherswitch_methods[] = {
58	/* device interface */
59	DEVMETHOD(device_identify,	etherswitch_identify),
60	DEVMETHOD(device_probe,		etherswitch_probe),
61	DEVMETHOD(device_attach,	etherswitch_attach),
62	DEVMETHOD(device_detach,	etherswitch_detach),
63
64	DEVMETHOD_END
65};
66
67driver_t etherswitch_driver = {
68	"etherswitch",
69	etherswitch_methods,
70	sizeof(struct etherswitch_softc),
71};
72
73static	d_ioctl_t	etherswitchioctl;
74
75static struct cdevsw etherswitch_cdevsw = {
76	.d_version =	D_VERSION,
77	.d_flags =	D_TRACKCLOSE,
78	.d_ioctl =	etherswitchioctl,
79	.d_name =	"etherswitch",
80};
81
82static void
83etherswitch_identify(driver_t *driver, device_t parent)
84{
85	if (device_find_child(parent, "etherswitch", -1) == NULL)
86		BUS_ADD_CHILD(parent, 0, "etherswitch", -1);
87}
88
89static int
90etherswitch_probe(device_t dev)
91{
92	device_set_desc(dev, "Switch controller");
93
94	return (0);
95}
96
97static int
98etherswitch_attach(device_t dev)
99{
100	int err;
101	struct etherswitch_softc *sc;
102	struct make_dev_args devargs;
103
104	sc = device_get_softc(dev);
105	sc->sc_dev = dev;
106	make_dev_args_init(&devargs);
107	devargs.mda_devsw = &etherswitch_cdevsw;
108	devargs.mda_uid = UID_ROOT;
109	devargs.mda_gid = GID_WHEEL;
110	devargs.mda_mode = 0600;
111	devargs.mda_si_drv1 = sc;
112	err = make_dev_s(&devargs, &sc->sc_devnode, "etherswitch%d",
113	    device_get_unit(dev));
114	if (err != 0) {
115		device_printf(dev, "failed to create character device\n");
116		return (ENXIO);
117	}
118
119	return (0);
120}
121
122static int
123etherswitch_detach(device_t dev)
124{
125	struct etherswitch_softc *sc = (struct etherswitch_softc *)device_get_softc(dev);
126
127	if (sc->sc_devnode)
128		destroy_dev(sc->sc_devnode);
129
130	return (0);
131}
132
133static int
134etherswitchioctl(struct cdev *cdev, u_long cmd, caddr_t data, int flags, struct thread *td)
135{
136	struct etherswitch_softc *sc = cdev->si_drv1;
137	device_t dev = sc->sc_dev;
138	device_t etherswitch = device_get_parent(dev);
139	etherswitch_conf_t conf;
140	etherswitch_info_t *info;
141	etherswitch_reg_t *reg;
142	etherswitch_phyreg_t *phyreg;
143	etherswitch_portid_t *portid;
144	int error = 0;
145
146	switch (cmd) {
147	case IOETHERSWITCHGETINFO:
148		info = ETHERSWITCH_GETINFO(etherswitch);
149		bcopy(info, data, sizeof(etherswitch_info_t));
150		break;
151
152	case IOETHERSWITCHGETREG:
153		reg = (etherswitch_reg_t *)data;
154		ETHERSWITCH_LOCK(etherswitch);
155		reg->val = ETHERSWITCH_READREG(etherswitch, reg->reg);
156		ETHERSWITCH_UNLOCK(etherswitch);
157		break;
158
159	case IOETHERSWITCHSETREG:
160		reg = (etherswitch_reg_t *)data;
161		ETHERSWITCH_LOCK(etherswitch);
162		error = ETHERSWITCH_WRITEREG(etherswitch, reg->reg, reg->val);
163		ETHERSWITCH_UNLOCK(etherswitch);
164		break;
165
166	case IOETHERSWITCHGETPORT:
167		error = ETHERSWITCH_GETPORT(etherswitch, (etherswitch_port_t *)data);
168		break;
169
170	case IOETHERSWITCHSETPORT:
171		error = ETHERSWITCH_SETPORT(etherswitch, (etherswitch_port_t *)data);
172		break;
173
174	case IOETHERSWITCHGETVLANGROUP:
175		error = ETHERSWITCH_GETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data);
176		break;
177
178	case IOETHERSWITCHSETVLANGROUP:
179		error = ETHERSWITCH_SETVGROUP(etherswitch, (etherswitch_vlangroup_t *)data);
180		break;
181
182	case IOETHERSWITCHGETPHYREG:
183		phyreg = (etherswitch_phyreg_t *)data;
184		phyreg->val = ETHERSWITCH_READPHYREG(etherswitch, phyreg->phy, phyreg->reg);
185		break;
186
187	case IOETHERSWITCHSETPHYREG:
188		phyreg = (etherswitch_phyreg_t *)data;
189		error = ETHERSWITCH_WRITEPHYREG(etherswitch, phyreg->phy, phyreg->reg, phyreg->val);
190		break;
191
192	case IOETHERSWITCHGETCONF:
193		bzero(&conf, sizeof(etherswitch_conf_t));
194		error = ETHERSWITCH_GETCONF(etherswitch, &conf);
195		bcopy(&conf, data, sizeof(etherswitch_conf_t));
196		break;
197
198	case IOETHERSWITCHSETCONF:
199		error = ETHERSWITCH_SETCONF(etherswitch, (etherswitch_conf_t *)data);
200		break;
201
202	case IOETHERSWITCHFLUSHALL:
203		error = ETHERSWITCH_FLUSH_ALL(etherswitch);
204		break;
205
206	case IOETHERSWITCHFLUSHPORT:
207		portid = (etherswitch_portid_t *)data;
208		error = ETHERSWITCH_FLUSH_PORT(etherswitch, portid->es_port);
209		break;
210
211	case IOETHERSWITCHGETTABLE:
212		error = ETHERSWITCH_FETCH_TABLE(etherswitch, (void *) data);
213		break;
214
215	case IOETHERSWITCHGETTABLEENTRY:
216		error = ETHERSWITCH_FETCH_TABLE_ENTRY(etherswitch, (void *) data);
217		break;
218
219	default:
220		error = ENOTTY;
221	}
222
223	return (error);
224}
225
226MODULE_VERSION(etherswitch, 1);
227