if_le_ibus.c revision 1.1.2.1 1 1.1.2.1 nisimura /* $NetBSD: if_le_ibus.c,v 1.1.2.1 1998/10/15 02:41:16 nisimura Exp $ */
2 1.1.2.1 nisimura
3 1.1.2.1 nisimura /*
4 1.1.2.1 nisimura * Copyright 1996 The Board of Trustees of The Leland Stanford
5 1.1.2.1 nisimura * Junior University. All Rights Reserved.
6 1.1.2.1 nisimura *
7 1.1.2.1 nisimura * Permission to use, copy, modify, and distribute this
8 1.1.2.1 nisimura * software and its documentation for any purpose and without
9 1.1.2.1 nisimura * fee is hereby granted, provided that the above copyright
10 1.1.2.1 nisimura * notice appear in all copies. Stanford University
11 1.1.2.1 nisimura * makes no representations about the suitability of this
12 1.1.2.1 nisimura * software for any purpose. It is provided "as is" without
13 1.1.2.1 nisimura * express or implied warranty.
14 1.1.2.1 nisimura *
15 1.1.2.1 nisimura * This driver was contributed by Jonathan Stone.
16 1.1.2.1 nisimura */
17 1.1.2.1 nisimura
18 1.1.2.1 nisimura /*
19 1.1.2.1 nisimura * LANCE on Decstation kn01/kn230 baseboard.
20 1.1.2.1 nisimura */
21 1.1.2.1 nisimura #include "opt_inet.h"
22 1.1.2.1 nisimura
23 1.1.2.1 nisimura #include <sys/param.h>
24 1.1.2.1 nisimura #include <sys/systm.h>
25 1.1.2.1 nisimura #include <sys/mbuf.h>
26 1.1.2.1 nisimura #include <sys/syslog.h>
27 1.1.2.1 nisimura #include <sys/socket.h>
28 1.1.2.1 nisimura #include <sys/device.h>
29 1.1.2.1 nisimura
30 1.1.2.1 nisimura #include <net/if.h>
31 1.1.2.1 nisimura #include <net/if_ether.h>
32 1.1.2.1 nisimura #include <net/if_media.h>
33 1.1.2.1 nisimura
34 1.1.2.1 nisimura #ifdef INET
35 1.1.2.1 nisimura #include <netinet/in.h>
36 1.1.2.1 nisimura #include <netinet/if_inarp.h>
37 1.1.2.1 nisimura #endif
38 1.1.2.1 nisimura
39 1.1.2.1 nisimura #include <dev/ic/lancereg.h>
40 1.1.2.1 nisimura #include <dev/ic/lancevar.h>
41 1.1.2.1 nisimura #include <dev/ic/am7990reg.h>
42 1.1.2.1 nisimura #include <dev/ic/am7990var.h>
43 1.1.2.1 nisimura
44 1.1.2.1 nisimura #include <dev/tc/if_levar.h>
45 1.1.2.1 nisimura #include <dev/tc/tcvar.h>
46 1.1.2.1 nisimura #include <machine/autoconf.h>
47 1.1.2.1 nisimura #include <pmax/ibus/ibusvar.h>
48 1.1.2.1 nisimura #include <pmax/pmax/kn01.h>
49 1.1.2.1 nisimura
50 1.1.2.1 nisimura extern void le_dec_copytobuf_gap2 __P((struct lance_softc *, void *,
51 1.1.2.1 nisimura int, int));
52 1.1.2.1 nisimura extern void le_dec_copyfrombuf_gap2 __P((struct lance_softc *, void *,
53 1.1.2.1 nisimura int, int));
54 1.1.2.1 nisimura
55 1.1.2.1 nisimura #if defined(_KERNEL) && !defined(_LKM)
56 1.1.2.1 nisimura #include "opt_ddb.h"
57 1.1.2.1 nisimura #endif
58 1.1.2.1 nisimura
59 1.1.2.1 nisimura #ifdef DDB
60 1.1.2.1 nisimura #define integrate
61 1.1.2.1 nisimura #define hide
62 1.1.2.1 nisimura #else
63 1.1.2.1 nisimura #define integrate static __inline
64 1.1.2.1 nisimura #define hide static
65 1.1.2.1 nisimura #endif
66 1.1.2.1 nisimura
67 1.1.2.1 nisimura hide void le_dec_zerobuf_gap2 __P((struct lance_softc *, int, int));
68 1.1.2.1 nisimura
69 1.1.2.1 nisimura
70 1.1.2.1 nisimura int le_pmax_match __P((struct device *, struct cfdata *, void *));
71 1.1.2.1 nisimura void le_pmax_attach __P((struct device *, struct device *, void *));
72 1.1.2.1 nisimura
73 1.1.2.1 nisimura struct cfattach le_pmax_ca = {
74 1.1.2.1 nisimura sizeof(struct le_softc), le_pmax_match, le_pmax_attach
75 1.1.2.1 nisimura };
76 1.1.2.1 nisimura
77 1.1.2.1 nisimura int
78 1.1.2.1 nisimura le_pmax_match(parent, match, aux)
79 1.1.2.1 nisimura struct device *parent;
80 1.1.2.1 nisimura struct cfdata *match;
81 1.1.2.1 nisimura void *aux;
82 1.1.2.1 nisimura {
83 1.1.2.1 nisimura struct ibus_attach_args *d = aux;
84 1.1.2.1 nisimura #define CFNAME(cf) ((cf)->dv_cfdata->cf_driver->cd_name)
85 1.1.2.1 nisimura
86 1.1.2.1 nisimura if (strcmp(CFNAME(parent), "ibus") != 0)
87 1.1.2.1 nisimura return (0);
88 1.1.2.1 nisimura if (strcmp("lance", d->ia_name) != 0)
89 1.1.2.1 nisimura return (0);
90 1.1.2.1 nisimura return (1);
91 1.1.2.1 nisimura #undef CFNAME
92 1.1.2.1 nisimura }
93 1.1.2.1 nisimura
94 1.1.2.1 nisimura void
95 1.1.2.1 nisimura le_pmax_attach(parent, self, aux)
96 1.1.2.1 nisimura struct device *parent, *self;
97 1.1.2.1 nisimura void *aux;
98 1.1.2.1 nisimura {
99 1.1.2.1 nisimura register struct le_softc *lesc = (void *)self;
100 1.1.2.1 nisimura register struct lance_softc *sc = &lesc->sc_am7990.lsc;
101 1.1.2.1 nisimura register u_char *cp;
102 1.1.2.1 nisimura register struct ibus_attach_args *ia = aux;
103 1.1.2.1 nisimura
104 1.1.2.1 nisimura /*
105 1.1.2.1 nisimura * It's on the baseboard, with a dedicated interrupt line.
106 1.1.2.1 nisimura */
107 1.1.2.1 nisimura lesc->sc_r1 = (struct lereg1 *)(ia->ia_addr);
108 1.1.2.1 nisimura /*XXX*/ sc->sc_mem = (void *)TC_PHYS_TO_UNCACHED(0x19000000);
109 1.1.2.1 nisimura /*XXX*/ cp = (u_char *)(TC_PHYS_TO_UNCACHED(KN01_SYS_CLOCK) + 1);
110 1.1.2.1 nisimura
111 1.1.2.1 nisimura sc->sc_copytodesc = le_dec_copytobuf_gap2;
112 1.1.2.1 nisimura sc->sc_copyfromdesc = le_dec_copyfrombuf_gap2;
113 1.1.2.1 nisimura sc->sc_copytobuf = le_dec_copytobuf_gap2;
114 1.1.2.1 nisimura sc->sc_copyfrombuf = le_dec_copyfrombuf_gap2;
115 1.1.2.1 nisimura sc->sc_zerobuf = le_dec_zerobuf_gap2;
116 1.1.2.1 nisimura
117 1.1.2.1 nisimura dec_le_common_attach(&lesc->sc_am7990, cp);
118 1.1.2.1 nisimura
119 1.1.2.1 nisimura ibus_intr_establish(parent, ia->ia_cookie, IPL_NET, am7990_intr, sc);
120 1.1.2.1 nisimura }
121 1.1.2.1 nisimura
122 1.1.2.1 nisimura /*
123 1.1.2.1 nisimura * gap2: two bytes of data followed by two bytes of pad.
124 1.1.2.1 nisimura *
125 1.1.2.1 nisimura * Buffers must be 4-byte aligned. The code doesn't worry about
126 1.1.2.1 nisimura * doing an extra byte.
127 1.1.2.1 nisimura */
128 1.1.2.1 nisimura
129 1.1.2.1 nisimura void
130 1.1.2.1 nisimura le_dec_copytobuf_gap2(sc, fromv, boff, len)
131 1.1.2.1 nisimura struct lance_softc *sc;
132 1.1.2.1 nisimura void *fromv;
133 1.1.2.1 nisimura int boff;
134 1.1.2.1 nisimura register int len;
135 1.1.2.1 nisimura {
136 1.1.2.1 nisimura volatile caddr_t buf = sc->sc_mem;
137 1.1.2.1 nisimura register caddr_t from = fromv;
138 1.1.2.1 nisimura register volatile u_int16_t *bptr;
139 1.1.2.1 nisimura
140 1.1.2.1 nisimura if (boff & 0x1) {
141 1.1.2.1 nisimura /* handle unaligned first byte */
142 1.1.2.1 nisimura bptr = ((volatile u_int16_t *)buf) + (boff - 1);
143 1.1.2.1 nisimura *bptr = (*from++ << 8) | (*bptr & 0xff);
144 1.1.2.1 nisimura bptr += 2;
145 1.1.2.1 nisimura len--;
146 1.1.2.1 nisimura } else
147 1.1.2.1 nisimura bptr = ((volatile u_int16_t *)buf) + boff;
148 1.1.2.1 nisimura while (len > 1) {
149 1.1.2.1 nisimura *bptr = (from[1] << 8) | (from[0] & 0xff);
150 1.1.2.1 nisimura bptr += 2;
151 1.1.2.1 nisimura from += 2;
152 1.1.2.1 nisimura len -= 2;
153 1.1.2.1 nisimura }
154 1.1.2.1 nisimura if (len == 1)
155 1.1.2.1 nisimura *bptr = (u_int16_t)*from;
156 1.1.2.1 nisimura }
157 1.1.2.1 nisimura
158 1.1.2.1 nisimura void
159 1.1.2.1 nisimura le_dec_copyfrombuf_gap2(sc, tov, boff, len)
160 1.1.2.1 nisimura struct lance_softc *sc;
161 1.1.2.1 nisimura void *tov;
162 1.1.2.1 nisimura int boff, len;
163 1.1.2.1 nisimura {
164 1.1.2.1 nisimura volatile caddr_t buf = sc->sc_mem;
165 1.1.2.1 nisimura register caddr_t to = tov;
166 1.1.2.1 nisimura register volatile u_int16_t *bptr;
167 1.1.2.1 nisimura register u_int16_t tmp;
168 1.1.2.1 nisimura
169 1.1.2.1 nisimura if (boff & 0x1) {
170 1.1.2.1 nisimura /* handle unaligned first byte */
171 1.1.2.1 nisimura bptr = ((volatile u_int16_t *)buf) + (boff - 1);
172 1.1.2.1 nisimura *to++ = (*bptr >> 8) & 0xff;
173 1.1.2.1 nisimura bptr += 2;
174 1.1.2.1 nisimura len--;
175 1.1.2.1 nisimura } else
176 1.1.2.1 nisimura bptr = ((volatile u_int16_t *)buf) + boff;
177 1.1.2.1 nisimura while (len > 1) {
178 1.1.2.1 nisimura tmp = *bptr;
179 1.1.2.1 nisimura *to++ = tmp & 0xff;
180 1.1.2.1 nisimura *to++ = (tmp >> 8) & 0xff;
181 1.1.2.1 nisimura bptr += 2;
182 1.1.2.1 nisimura len -= 2;
183 1.1.2.1 nisimura }
184 1.1.2.1 nisimura if (len == 1)
185 1.1.2.1 nisimura *to = *bptr & 0xff;
186 1.1.2.1 nisimura }
187 1.1.2.1 nisimura
188 1.1.2.1 nisimura void
189 1.1.2.1 nisimura le_dec_zerobuf_gap2(sc, boff, len)
190 1.1.2.1 nisimura struct lance_softc *sc;
191 1.1.2.1 nisimura int boff, len;
192 1.1.2.1 nisimura {
193 1.1.2.1 nisimura volatile caddr_t buf = sc->sc_mem;
194 1.1.2.1 nisimura register volatile u_int16_t *bptr;
195 1.1.2.1 nisimura
196 1.1.2.1 nisimura if ((unsigned)boff & 0x1) {
197 1.1.2.1 nisimura bptr = ((volatile u_int16_t *)buf) + (boff - 1);
198 1.1.2.1 nisimura *bptr &= 0xff;
199 1.1.2.1 nisimura bptr += 2;
200 1.1.2.1 nisimura len--;
201 1.1.2.1 nisimura } else
202 1.1.2.1 nisimura bptr = ((volatile u_int16_t *)buf) + boff;
203 1.1.2.1 nisimura while (len > 0) {
204 1.1.2.1 nisimura *bptr = 0;
205 1.1.2.1 nisimura bptr += 2;
206 1.1.2.1 nisimura len -= 2;
207 1.1.2.1 nisimura }
208 1.1.2.1 nisimura }
209