Annotation of sys/arch/luna88k/dev/if_le.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: if_le.c,v 1.4 2004/08/30 13:10:32 aoyama Exp $ */
2: /* $NetBSD: if_le.c,v 1.33 1996/11/20 18:56:52 gwr Exp $ */
3:
4: /*-
5: * Copyright (c) 1996 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Adam Glass and Gordon W. Ross.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
31: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: /* based on OpenBSD: sys/arch/sun3/dev/if_le.c */
41:
42: #include <sys/param.h>
43: #include <sys/systm.h>
44: #include <sys/mbuf.h>
45: #include <sys/syslog.h>
46: #include <sys/socket.h>
47: #include <sys/device.h>
48:
49: #include <net/if.h>
50:
51: #ifdef INET
52: #include <netinet/in.h>
53: #include <netinet/if_ether.h>
54: #endif
55:
56: #include <net/if_media.h>
57:
58: #include <machine/autoconf.h>
59: #include <machine/board.h>
60: #include <machine/cpu.h>
61:
62: #include <dev/ic/am7990reg.h>
63: #include <dev/ic/am7990var.h>
64:
65: #include <luna88k/luna88k/isr.h>
66:
67: /*
68: * LANCE registers.
69: * The real stuff is in dev/ic/am7990reg.h
70: */
71: struct lereg1 {
72: volatile u_int16_t ler1_rdp; /* data port */
73: volatile unsigned : 16 ; /* LUNA-88K2 has a 16 bit gap */
74: volatile u_int16_t ler1_rap; /* register select port */
75: };
76:
77: /*
78: * Ethernet software status per interface.
79: * The real stuff is in dev/ic/am7990var.h
80: */
81: struct le_softc {
82: struct am7990_softc sc_am7990; /* glue to MI code */
83:
84: struct lereg1 *sc_r1; /* LANCE registers */
85: };
86:
87: static int le_match(struct device *, void *, void *);
88: static void le_attach(struct device *, struct device *, void *);
89:
90: struct cfattach le_ca = {
91: sizeof(struct le_softc), le_match, le_attach
92: };
93:
94: hide void lewrcsr(struct am7990_softc *, u_int16_t, u_int16_t);
95: hide u_int16_t lerdcsr(struct am7990_softc *, u_int16_t);
96: hide void myetheraddr(u_int8_t *);
97:
98: hide void
99: lewrcsr(sc, port, val)
100: struct am7990_softc *sc;
101: u_int16_t port, val;
102: {
103: register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
104:
105: ler1->ler1_rap = port;
106: ler1->ler1_rdp = val;
107: }
108:
109: hide u_int16_t
110: lerdcsr(sc, port)
111: struct am7990_softc *sc;
112: u_int16_t port;
113: {
114: register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
115: u_int16_t val;
116:
117: ler1->ler1_rap = port;
118: val = ler1->ler1_rdp;
119: return (val);
120: }
121:
122: static int
123: le_match(parent, cf, aux)
124: struct device *parent;
125: void *cf, *aux;
126: {
127: struct mainbus_attach_args *ma = aux;
128:
129: if (strcmp(ma->ma_name, le_cd.cd_name))
130: return (0);
131:
132: return (1);
133: }
134:
135: void
136: le_attach(parent, self, aux)
137: struct device *parent, *self;
138: void *aux;
139: {
140: struct le_softc *lesc = (struct le_softc *)self;
141: struct am7990_softc *sc = &lesc->sc_am7990;
142: struct mainbus_attach_args *ma = aux;
143:
144: lesc->sc_r1 = (struct lereg1 *)ma->ma_addr; /* LANCE */
145:
146: sc->sc_mem = (void *)0x71000000; /* SRAM */
147: sc->sc_conf3 = LE_C3_BSWP;
148: sc->sc_addr = (u_long)sc->sc_mem & 0xffffff;
149: sc->sc_memsize = 64 * 1024; /* 64KB */
150:
151: myetheraddr(sc->sc_arpcom.ac_enaddr);
152:
153: sc->sc_copytodesc = am7990_copytobuf_contig;
154: sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
155: sc->sc_copytobuf = am7990_copytobuf_contig;
156: sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
157: sc->sc_zerobuf = am7990_zerobuf_contig;
158:
159: sc->sc_rdcsr = lerdcsr;
160: sc->sc_wrcsr = lewrcsr;
161: sc->sc_hwreset = NULL;
162: sc->sc_hwinit = NULL;
163:
164: am7990_config(sc);
165:
166: isrlink_autovec(am7990_intr, (void *)sc, ma->ma_ilvl, ISRPRI_NET,
167: self->dv_xname);
168: }
169:
170: /*
171: * Partially taken from NetBSD/luna68k
172: *
173: * LUNA-88K has FUSE ROM, which contains MAC address. The FUSE ROM
174: * contents are stored in fuse_rom_data[] during cpu_startup().
175: *
176: * LUNA-88K2 has 16Kbit NVSRAM on its ethercard, whose contents are
177: * accessible 4bit-wise by ctl register operation. The register is
178: * mapped at 0xF1000008.
179: */
180:
181: extern int machtype;
182: extern char fuse_rom_data[];
183:
184: hide void
185: myetheraddr(ether)
186: u_int8_t *ether;
187: {
188: unsigned i, loc;
189: volatile struct { u_int32_t ctl; } *ds1220;
190:
191: switch (machtype) {
192: case LUNA_88K:
193: /*
194: * fuse_rom_data[] begins with "ENADDR=00000Axxxxxx"
195: */
196: loc = 7;
197: for (i = 0; i < 6; i++) {
198: int u, l;
199:
200: u = fuse_rom_data[loc];
201: u = (u < 'A') ? u & 0xf : u - 'A' + 10;
202: l = fuse_rom_data[loc + 1];
203: l = (l < 'A') ? l & 0xf : l - 'A' + 10;
204:
205: ether[i] = l | (u << 4);
206: loc += 2;
207: }
208: break;
209: case LUNA_88K2:
210: ds1220 = (void *)0xF1000008;
211: loc = 12;
212: for (i = 0; i < 6; i++) {
213: unsigned u, l, hex;
214:
215: ds1220->ctl = (loc) << 16;
216: u = 0xf0 & (ds1220->ctl >> 12);
217: ds1220->ctl = (loc + 1) << 16;
218: l = 0x0f & (ds1220->ctl >> 16);
219: hex = (u < '9') ? l : l + 9;
220:
221: ds1220->ctl = (loc + 2) << 16;
222: u = 0xf0 & (ds1220->ctl >> 12);
223: ds1220->ctl = (loc + 3) << 16;
224: l = 0x0f & (ds1220->ctl >> 16);
225:
226: ether[i] = ((u < '9') ? l : l + 9) | (hex << 4);
227: loc += 4;
228: }
229: break;
230: default:
231: ether[0] = 0x00; ether[1] = 0x00; ether[2] = 0x0a;
232: ether[3] = 0xDE; ether[4] = 0xAD; ether[5] = 0x00;
233: break;
234: }
235: }
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