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 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 /*
33 * National Semiconductor DP8393X SONIC Driver
34 *
35 * This is the bus independent attachment on FreeBSD 4.x
36 * written by Motomichi Matsuzaki <mzaki@e-mail.ne.jp>
37 */
38
39 #include <sys/param.h>
40 #include <sys/socket.h>
41
42 #include <sys/bus.h>
43 #include <machine/bus.h>
44 #include <sys/rman.h>
45 #include <machine/resource.h>
46
47 #include <net/ethernet.h>
48 #include <net/if.h>
49 #include <net/if_arp.h>
50 #include <net/if_media.h>
51 #include <net/if_var.h>
52
53 #include <dev/snc/dp83932reg.h>
54 #include <dev/snc/dp83932var.h>
55 #include <dev/snc/dp83932subr.h>
56 #include <dev/snc/if_sncreg.h>
57 #include <dev/snc/if_sncvar.h>
58
59 /* devclass for "snc" */
60 devclass_t snc_devclass;
61
62 /****************************************************************
63 Resource management functions
64 ****************************************************************/
65
66 /*
67 * Allocate a port resource with the given resource id.
68 */
69 int
snc_alloc_port(device_t dev,int rid)70 snc_alloc_port(device_t dev, int rid)
71 {
72 struct snc_softc *sc = device_get_softc(dev);
73 struct resource *res;
74
75 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
76 0ul, ~0ul, SNEC_NREGS, RF_ACTIVE);
77 if (res) {
78 sc->ioport = res;
79 sc->ioport_rid = rid;
80 sc->sc_iot = rman_get_bustag(res);
81 sc->sc_ioh = rman_get_bushandle(res);
82 return (0);
83 } else {
84 device_printf(dev, "can't assign port\n");
85 return (ENOENT);
86 }
87 }
88
89 /*
90 * Allocate a memory resource with the given resource id.
91 */
92 int
snc_alloc_memory(device_t dev,int rid)93 snc_alloc_memory(device_t dev, int rid)
94 {
95 struct snc_softc *sc = device_get_softc(dev);
96 struct resource *res;
97
98 res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
99 0ul, ~0ul, SNEC_NMEMS, RF_ACTIVE);
100 if (res) {
101 sc->iomem = res;
102 sc->iomem_rid = rid;
103 sc->sc_memt = rman_get_bustag(res);
104 sc->sc_memh = rman_get_bushandle(res);
105 return (0);
106 } else {
107 device_printf(dev, "can't assign memory\n");
108 return (ENOENT);
109 }
110 }
111
112 /*
113 * Allocate an irq resource with the given resource id.
114 */
115 int
snc_alloc_irq(device_t dev,int rid,int flags)116 snc_alloc_irq(device_t dev, int rid, int flags)
117 {
118 struct snc_softc *sc = device_get_softc(dev);
119 struct resource *res;
120
121 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE | flags);
122 if (res) {
123 sc->irq = res;
124 sc->irq_rid = rid;
125 return (0);
126 } else {
127 device_printf(dev, "can't assign irq\n");
128 return (ENOENT);
129 }
130 }
131
132 /*
133 * Release all resources
134 */
135 void
snc_release_resources(device_t dev)136 snc_release_resources(device_t dev)
137 {
138 struct snc_softc *sc = device_get_softc(dev);
139
140 if (sc->ioport) {
141 bus_release_resource(dev, SYS_RES_IOPORT,
142 sc->ioport_rid, sc->ioport);
143 sc->ioport = 0;
144 }
145 if (sc->iomem) {
146 bus_release_resource(dev, SYS_RES_MEMORY,
147 sc->iomem_rid, sc->iomem);
148 sc->iomem = 0;
149 }
150 if (sc->irq) {
151 bus_release_resource(dev, SYS_RES_IRQ,
152 sc->irq_rid, sc->irq);
153 sc->irq = 0;
154 }
155 if (sc->sc_ifp) {
156 if_free(sc->sc_ifp);
157 sc->sc_ifp = 0;
158 }
159 }
160
161 /****************************************************************
162 Probe routine
163 ****************************************************************/
164
165 int
snc_probe(device_t dev,int type)166 snc_probe(device_t dev, int type)
167 {
168 struct snc_softc *sc = device_get_softc(dev);
169
170 return snc_nec16_detectsubr(sc->sc_iot, sc->sc_ioh,
171 sc->sc_memt, sc->sc_memh,
172 rman_get_start(sc->irq),
173 rman_get_start(sc->iomem),
174 type);
175 }
176
177 /****************************************************************
178 Attach routine
179 ****************************************************************/
180
181 int
snc_attach(device_t dev)182 snc_attach(device_t dev)
183 {
184 struct snc_softc *sc = device_get_softc(dev);
185 u_int8_t myea[ETHER_ADDR_LEN];
186 int error;
187
188 if (snc_nec16_register_irq(sc, rman_get_start(sc->irq)) == 0 ||
189 snc_nec16_register_mem(sc, rman_get_start(sc->iomem)) == 0) {
190 snc_release_resources(dev);
191 return(ENOENT);
192 }
193
194 snc_nec16_get_enaddr(sc->sc_iot, sc->sc_ioh, myea);
195 device_printf(dev, "%s Ethernet\n", snc_nec16_detect_type(myea));
196
197 sc->sc_dev = dev;
198
199 sc->sncr_dcr = DCR_SYNC | DCR_WAIT0 |
200 DCR_DMABLOCK | DCR_RFT16 | DCR_TFT28;
201 sc->sncr_dcr2 = 0; /* XXX */
202 sc->bitmode = 0; /* 16 bit card */
203
204 sc->sc_nic_put = snc_nec16_nic_put;
205 sc->sc_nic_get = snc_nec16_nic_get;
206 sc->sc_writetodesc = snc_nec16_writetodesc;
207 sc->sc_readfromdesc = snc_nec16_readfromdesc;
208 sc->sc_copytobuf = snc_nec16_copytobuf;
209 sc->sc_copyfrombuf = snc_nec16_copyfrombuf;
210 sc->sc_zerobuf = snc_nec16_zerobuf;
211
212 /* sncsetup returns 1 if something fails */
213 if (sncsetup(sc, myea)) {
214 snc_release_resources(dev);
215 return(ENOENT);
216 }
217
218 mtx_init(&sc->sc_lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,
219 MTX_DEF);
220 callout_init_mtx(&sc->sc_timer, &sc->sc_lock, 0);
221 error = sncconfig(sc, NULL, 0, 0, myea);
222 if (error) {
223 snc_release_resources(dev);
224 mtx_destroy(&sc->sc_lock);
225 return (error);
226 }
227
228 error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET | INTR_MPSAFE,
229 NULL, sncintr, sc, &sc->irq_handle);
230 if (error) {
231 printf("snc_isa_attach: bus_setup_intr() failed\n");
232 ether_ifdetach(sc->sc_ifp);
233 snc_release_resources(dev);
234 mtx_destroy(&sc->sc_lock);
235 return (error);
236 }
237
238 return 0;
239 }
240
241 /****************************************************************
242 Shutdown routine
243 ****************************************************************/
244
245 int
snc_shutdown(device_t dev)246 snc_shutdown(device_t dev)
247 {
248 struct snc_softc *sc = device_get_softc(dev);
249
250 SNC_LOCK(sc);
251 sncshutdown(sc);
252 SNC_UNLOCK(sc);
253
254 return (0);
255 }
256