1 /* $NetBSD: if_le.c,v 1.18 2010/01/19 22:06:22 pooka Exp $ */
2
3 /*-
4 * Copyright (c) 1996 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Adam Glass and Gordon W. Ross.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.18 2010/01/19 22:06:22 pooka Exp $");
34
35 #include "opt_inet.h"
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/mbuf.h>
40 #include <sys/syslog.h>
41 #include <sys/socket.h>
42 #include <sys/device.h>
43
44 #include <net/if.h>
45 #include <net/if_ether.h>
46 #include <net/if_media.h>
47
48 #ifdef INET
49 #include <netinet/in.h>
50 #include <netinet/if_inarp.h>
51 #endif
52
53 #include <machine/cpu.h>
54 #include <machine/adrsmap.h>
55
56 #include <dev/ic/lancereg.h>
57 #include <dev/ic/lancevar.h>
58 #include <dev/ic/am7990reg.h>
59 #include <dev/ic/am7990var.h>
60
61 #include <newsmips/dev/hbvar.h>
62
63 /*
64 * LANCE registers.
65 * The real stuff is in dev/ic/am7990reg.h
66 */
67 struct lereg1 {
68 volatile uint16_t ler1_rdp; /* data port */
69 volatile uint16_t ler1_rap; /* register select port */
70 };
71
72 /*
73 * Ethernet software status per interface.
74 * The real stuff is in dev/ic/am7990var.h
75 */
76 struct le_softc {
77 struct am7990_softc sc_am7990; /* glue to MI code */
78
79 struct lereg1 *sc_r1; /* LANCE registers */
80 };
81
82 static int le_match(device_t, cfdata_t, void *);
83 static void le_attach(device_t, device_t, void *);
84
85 CFATTACH_DECL_NEW(le, sizeof(struct le_softc),
86 le_match, le_attach, NULL, NULL);
87
88 #if defined(_KERNEL_OPT)
89 #include "opt_ddb.h"
90 #endif
91
92 #ifdef DDB
93 #define integrate
94 #define hide
95 #else
96 #define integrate static inline
97 #define hide static
98 #endif
99
100 hide void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
101 hide uint16_t lerdcsr(struct lance_softc *, uint16_t);
102
103 hide void
lewrcsr(struct lance_softc * sc,uint16_t port,uint16_t val)104 lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
105 {
106 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
107
108 ler1->ler1_rap = port;
109 ler1->ler1_rdp = val;
110 }
111
112 hide uint16_t
lerdcsr(struct lance_softc * sc,uint16_t port)113 lerdcsr(struct lance_softc *sc, uint16_t port)
114 {
115 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
116 uint16_t val;
117
118 ler1->ler1_rap = port;
119 val = ler1->ler1_rdp;
120 return val;
121 }
122
123 int
le_match(device_t parent,cfdata_t cf,void * aux)124 le_match(device_t parent, cfdata_t cf, void *aux)
125 {
126 struct hb_attach_args *ha = aux;
127
128 if (strcmp(ha->ha_name, "le"))
129 return 0;
130
131 if (hb_badaddr((void *)ha->ha_addr, 1)) /* XXX */
132 return 0;
133
134 return 1;
135 }
136
137 void
le_attach(device_t parent,device_t self,void * aux)138 le_attach(device_t parent, device_t self, void *aux)
139 {
140 struct le_softc *lesc = device_private(self);
141 struct lance_softc *sc = &lesc->sc_am7990.lsc;
142 struct hb_attach_args *ha = aux;
143 int intlevel, intmask;
144 uint8_t *p;
145
146 sc->sc_dev = self;
147 intlevel = ha->ha_level;
148 if (intlevel == -1) {
149 aprint_error(": interrupt level not configured\n");
150 return;
151 }
152 aprint_normal(" level %d", intlevel);
153
154 switch (ha->ha_addr) {
155
156 case LANCE_PORT:
157 sc->sc_mem = (void *)LANCE_MEMORY;
158 p = (uint8_t *)(ETHER_ID + 16);
159 intmask = INTST1_LANCE;
160 break;
161 case LANCE_PORT1:
162 sc->sc_mem = (void *)LANCE_MEMORY1;
163 p = (uint8_t *)(ETHER_ID1 + 16);
164 intmask = INTST1_SLOT3; /* XXX not tested */
165 break;
166 case LANCE_PORT2:
167 sc->sc_mem = (void *)LANCE_MEMORY2;
168 p = (uint8_t *)(ETHER_ID2 + 16);
169 intmask = INTST1_SLOT3; /* XXX not tested */
170 break;
171
172 default:
173 aprint_error(": unknown LANCE addr\n");
174 return;
175 }
176
177 lesc->sc_r1 = (void *)ha->ha_addr;
178
179 sc->sc_memsize = 0x4000; /* 16K */
180 sc->sc_addr = (int)sc->sc_mem & 0x00ffffff;
181 sc->sc_conf3 = LE_C3_BSWP|LE_C3_BCON;
182
183 sc->sc_enaddr[0] = (*p++ << 4);
184 sc->sc_enaddr[0] |= *p++ & 0x0f;
185 sc->sc_enaddr[1] = (*p++ << 4);
186 sc->sc_enaddr[1] |= *p++ & 0x0f;
187 sc->sc_enaddr[2] = (*p++ << 4);
188 sc->sc_enaddr[2] |= *p++ & 0x0f;
189 sc->sc_enaddr[3] = (*p++ << 4);
190 sc->sc_enaddr[3] |= *p++ & 0x0f;
191 sc->sc_enaddr[4] = (*p++ << 4);
192 sc->sc_enaddr[4] |= *p++ & 0x0f;
193 sc->sc_enaddr[5] = (*p++ << 4);
194 sc->sc_enaddr[5] |= *p++ & 0x0f;
195
196 sc->sc_copytodesc = lance_copytobuf_contig;
197 sc->sc_copyfromdesc = lance_copyfrombuf_contig;
198 sc->sc_copytobuf = lance_copytobuf_contig;
199 sc->sc_copyfrombuf = lance_copyfrombuf_contig;
200 sc->sc_zerobuf = lance_zerobuf_contig;
201
202 sc->sc_rdcsr = lerdcsr;
203 sc->sc_wrcsr = lewrcsr;
204 sc->sc_hwinit = NULL;
205
206 am7990_config(&lesc->sc_am7990);
207 hb_intr_establish(intlevel, intmask, IPL_NET, am7990_intr, sc);
208 }
209