1 /* $NetBSD: if_le.c,v 1.19 2011/11/20 15:38:00 tsutsui 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 /*
33 * news68k/dev/if_le.c - based on newsmips/dev/if_le.c
34 */
35
36 #include <sys/cdefs.h>
37 __KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.19 2011/11/20 15:38:00 tsutsui Exp $");
38
39 #include "opt_inet.h"
40
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/mbuf.h>
44 #include <sys/socket.h>
45 #include <sys/device.h>
46
47 #include <net/if.h>
48 #include <net/if_ether.h>
49 #include <net/if_media.h>
50
51 #ifdef INET
52 #include <netinet/in.h>
53 #include <netinet/if_inarp.h>
54 #endif
55
56 #include <machine/cpu.h>
57
58 #include <news68k/dev/hbvar.h>
59
60 #include <dev/ic/lancereg.h>
61 #include <dev/ic/lancevar.h>
62 #include <dev/ic/am7990reg.h>
63 #include <dev/ic/am7990var.h>
64
65 #include "ioconf.h"
66
67 /*
68 * LANCE registers.
69 * The real stuff is in dev/ic/am7990reg.h
70 */
71 struct lereg1 {
72 volatile uint16_t ler1_rdp; /* data port */
73 volatile uint16_t ler1_rap; /* register select port */
74 };
75
76 /*
77 * Ethernet software status per interface.
78 * The real stuff is in dev/ic/am7990var.h
79 */
80 struct le_softc {
81 struct am7990_softc sc_am7990; /* glue to MI code */
82
83 struct lereg1 *sc_r1; /* LANCE registers */
84 };
85
86 static int le_match(device_t, cfdata_t, void *);
87 static void le_attach(device_t, device_t, void *);
88
89 CFATTACH_DECL_NEW(le, sizeof(struct le_softc),
90 le_match, le_attach, NULL, NULL);
91
92 extern const uint8_t *idrom_addr;
93 extern uint32_t lance_mem_phys;
94
95 #if defined(_KERNEL_OPT)
96 #include "opt_ddb.h"
97 #endif
98
99 #ifdef DDB
100 #define integrate
101 #define hide
102 #else
103 #define integrate static inline
104 #define hide static
105 #endif
106
107 hide void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
108 hide uint16_t lerdcsr(struct lance_softc *, uint16_t);
109 int leintr(int);
110
111 hide void
lewrcsr(struct lance_softc * sc,uint16_t port,uint16_t val)112 lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
113 {
114 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
115
116 ler1->ler1_rap = port;
117 ler1->ler1_rdp = val;
118 }
119
120 hide uint16_t
lerdcsr(struct lance_softc * sc,uint16_t port)121 lerdcsr(struct lance_softc *sc, uint16_t port)
122 {
123 struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
124 uint16_t val;
125
126 ler1->ler1_rap = port;
127 val = ler1->ler1_rdp;
128 return val;
129 }
130
131 int
le_match(device_t parent,cfdata_t cf,void * aux)132 le_match(device_t parent, cfdata_t cf, void *aux)
133 {
134 struct hb_attach_args *ha = aux;
135 int addr;
136
137 if (strcmp(ha->ha_name, "le"))
138 return 0;
139
140 addr = (ha->ha_address);
141
142 if (badaddr((void *)addr, 1))
143 return 0;
144
145 return 1;
146 }
147
148 void
le_attach(device_t parent,device_t self,void * aux)149 le_attach(device_t parent, device_t self, void *aux)
150 {
151 struct le_softc *lesc = device_private(self);
152 struct lance_softc *sc = &lesc->sc_am7990.lsc;
153 struct hb_attach_args *ha = aux;
154 const uint8_t *p;
155
156 sc->sc_dev = self;
157 lesc->sc_r1 = (void *)(ha->ha_address);
158
159 if (ISIIOPA(ha->ha_address)) {
160 sc->sc_mem = (u_char *)(lance_mem_phys);
161 p = idrom_addr + 0x10;
162 } else {
163 sc->sc_mem = lesc->sc_r1 - 0x10000;
164 p = (const uint8_t *)(lesc->sc_r1 + 0x8010);
165 }
166
167 sc->sc_memsize = 0x4000; /* 16K */
168 sc->sc_addr = lance_mem_phys & 0x00ffffff;
169 sc->sc_conf3 = LE_C3_BSWP|LE_C3_BCON;
170
171 sc->sc_enaddr[0] = (*p++ << 4);
172 sc->sc_enaddr[0] |= *p++ & 0x0f;
173 sc->sc_enaddr[1] = (*p++ << 4);
174 sc->sc_enaddr[1] |= *p++ & 0x0f;
175 sc->sc_enaddr[2] = (*p++ << 4);
176 sc->sc_enaddr[2] |= *p++ & 0x0f;
177 sc->sc_enaddr[3] = (*p++ << 4);
178 sc->sc_enaddr[3] |= *p++ & 0x0f;
179 sc->sc_enaddr[4] = (*p++ << 4);
180 sc->sc_enaddr[4] |= *p++ & 0x0f;
181 sc->sc_enaddr[5] = (*p++ << 4);
182 sc->sc_enaddr[5] |= *p++ & 0x0f;
183
184 sc->sc_copytodesc = lance_copytobuf_contig;
185 sc->sc_copyfromdesc = lance_copyfrombuf_contig;
186 sc->sc_copytobuf = lance_copytobuf_contig;
187 sc->sc_copyfrombuf = lance_copyfrombuf_contig;
188 sc->sc_zerobuf = lance_zerobuf_contig;
189
190 sc->sc_rdcsr = lerdcsr;
191 sc->sc_wrcsr = lewrcsr;
192 sc->sc_hwinit = NULL;
193
194 am7990_config(&lesc->sc_am7990);
195 }
196
197 int
leintr(int unit)198 leintr(int unit)
199 {
200 struct am7990_softc *sc;
201
202 if (unit >= le_cd.cd_ndevs) /* XXX */
203 return 0;
204
205 sc = device_lookup_private(&le_cd, unit);
206 return am7990_intr(sc);
207 }
208