Initial import from FreeBSD RELENG_4:
[dragonfly.git] / sys / dev / netif / snc / if_snc.c
CommitLineData
984263bc
MD
1/*
2 * Copyright (c) 1995, David Greenman
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 unmodified, this list of conditions, and the following
10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: src/sys/dev/snc/if_snc.c,v 1.2.2.1 2000/10/21 03:30:03 nyan Exp $
28 */
29
30/*
31 * National Semiconductor DP8393X SONIC Driver
32 *
33 * This is the bus independent attachment on FreeBSD 4.x
34 * written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
35 */
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/sockio.h>
40#include <sys/mbuf.h>
41#include <sys/socket.h>
42#include <sys/syslog.h>
43
44#include <sys/module.h>
45#include <sys/bus.h>
46#include <machine/bus.h>
47#include <sys/rman.h>
48#include <machine/resource.h>
49
50#include <net/ethernet.h>
51#include <net/if.h>
52#include <net/if_arp.h>
53#include <net/if_media.h>
54#include <net/if_dl.h>
55#include <net/if_mib.h>
56
57#include <net/bpf.h>
58#include "opt_bdg.h"
59#ifdef BRIDGE
60#include <net/bridge.h>
61#endif
62
63#include <dev/snc/dp83932reg.h>
64#include <dev/snc/dp83932var.h>
65#include <dev/snc/dp83932subr.h>
66#include <dev/snc/if_sncreg.h>
67#include <dev/snc/if_sncvar.h>
68
69/* devclass for "snc" */
70devclass_t snc_devclass;
71
72/****************************************************************
73 Resource management functions
74 ****************************************************************/
75
76/*
77 * Allocate a port resource with the given resource id.
78 */
79int
80snc_alloc_port(dev, rid)
81 device_t dev;
82 int rid;
83{
84 struct snc_softc *sc = device_get_softc(dev);
85 struct resource *res;
86
87 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
88 0ul, ~0ul, SNEC_NREGS, RF_ACTIVE);
89 if (res) {
90 sc->ioport = res;
91 sc->ioport_rid = rid;
92 sc->sc_iot = rman_get_bustag(res);
93 sc->sc_ioh = rman_get_bushandle(res);
94 return (0);
95 } else {
96 device_printf(dev, "can't assign port\n");
97 return (ENOENT);
98 }
99}
100
101/*
102 * Allocate a memory resource with the given resource id.
103 */
104int
105snc_alloc_memory(dev, rid)
106 device_t dev;
107 int rid;
108{
109 struct snc_softc *sc = device_get_softc(dev);
110 struct resource *res;
111
112 res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
113 0ul, ~0ul, SNEC_NMEMS, RF_ACTIVE);
114 if (res) {
115 sc->iomem = res;
116 sc->iomem_rid = rid;
117 sc->sc_memt = rman_get_bustag(res);
118 sc->sc_memh = rman_get_bushandle(res);
119 return (0);
120 } else {
121 device_printf(dev, "can't assign memory\n");
122 return (ENOENT);
123 }
124}
125
126/*
127 * Allocate an irq resource with the given resource id.
128 */
129int
130snc_alloc_irq(dev, rid, flags)
131 device_t dev;
132 int rid;
133 int flags;
134{
135 struct snc_softc *sc = device_get_softc(dev);
136 struct resource *res;
137
138 res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
139 0ul, ~0ul, 1, (RF_ACTIVE | flags));
140 if (res) {
141 sc->irq = res;
142 sc->irq_rid = rid;
143 return (0);
144 } else {
145 device_printf(dev, "can't assign irq\n");
146 return (ENOENT);
147 }
148}
149
150/*
151 * Release all resources
152 */
153void
154snc_release_resources(dev)
155 device_t dev;
156{
157 struct snc_softc *sc = device_get_softc(dev);
158
159 if (sc->ioport) {
160 bus_release_resource(dev, SYS_RES_IOPORT,
161 sc->ioport_rid, sc->ioport);
162 sc->ioport = 0;
163 }
164 if (sc->iomem) {
165 bus_release_resource(dev, SYS_RES_MEMORY,
166 sc->iomem_rid, sc->iomem);
167 sc->iomem = 0;
168 }
169 if (sc->irq) {
170 bus_release_resource(dev, SYS_RES_IRQ,
171 sc->irq_rid, sc->irq);
172 sc->irq = 0;
173 }
174}
175
176/****************************************************************
177 Probe routine
178 ****************************************************************/
179
180int
181snc_probe(dev, type)
182 device_t dev;
183 int type;
184{
185 struct snc_softc *sc = device_get_softc(dev);
186
187 return snc_nec16_detectsubr(sc->sc_iot, sc->sc_ioh,
188 sc->sc_memt, sc->sc_memh,
189 rman_get_start(sc->irq),
190 rman_get_start(sc->iomem),
191 type);
192}
193
194/****************************************************************
195 Attach routine
196 ****************************************************************/
197
198int
199snc_attach(dev)
200 device_t dev;
201{
202 struct snc_softc *sc = device_get_softc(dev);
203 u_int8_t myea[ETHER_ADDR_LEN];
204
205 if (snc_nec16_register_irq(sc, rman_get_start(sc->irq)) == 0 ||
206 snc_nec16_register_mem(sc, rman_get_start(sc->iomem)) == 0) {
207 snc_release_resources(dev);
208 return(ENOENT);
209 }
210
211 snc_nec16_get_enaddr(sc->sc_iot, sc->sc_ioh, myea);
212 device_printf(dev, "%s Ethernet\n", snc_nec16_detect_type(myea));
213
214 sc->sc_dev = dev;
215
216 sc->sncr_dcr = DCR_SYNC | DCR_WAIT0 |
217 DCR_DMABLOCK | DCR_RFT16 | DCR_TFT28;
218 sc->sncr_dcr2 = 0; /* XXX */
219 sc->bitmode = 0; /* 16 bit card */
220
221 sc->sc_nic_put = snc_nec16_nic_put;
222 sc->sc_nic_get = snc_nec16_nic_get;
223 sc->sc_writetodesc = snc_nec16_writetodesc;
224 sc->sc_readfromdesc = snc_nec16_readfromdesc;
225 sc->sc_copytobuf = snc_nec16_copytobuf;
226 sc->sc_copyfrombuf = snc_nec16_copyfrombuf;
227 sc->sc_zerobuf = snc_nec16_zerobuf;
228
229 /* sncsetup returns 1 if something fails */
230 if (sncsetup(sc, myea)) {
231 snc_release_resources(dev);
232 return(ENOENT);
233 }
234
235 sncconfig(sc, NULL, 0, 0, myea);
236
237 return 0;
238}
239
240/****************************************************************
241 Shutdown routine
242 ****************************************************************/
243
244void
245snc_shutdown(dev)
246 device_t dev;
247{
248 sncshutdown(device_get_softc(dev));
249}