1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/* $NetBSD: if_le_dec.c,v 1.3 1996/10/13 01:38:38 christos Exp $ */
/*-
* Copyright (c) 1995 Charles M. Hannum. All rights reserved.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell and Rick Macklem.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)if_le.c 8.2 (Berkeley) 11/16/93
*/
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <net/if.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <dev/ic/am7990reg.h>
#include <dev/ic/am7990var.h>
#include <dev/tc/if_levar.h>
#include <dev/tc/tcvar.h>
/* access LANCE registers */
void le_dec_writereg __P((volatile u_short *regptr, u_short val));
#define LERDWR(cntl, src, dst) { (dst) = (src); tc_mb(); }
#define LEWREG(src, dst) le_dec_writereg(&(dst), (src))
hide void le_dec_wrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t));
hide u_int16_t le_dec_rdcsr __P((struct am7990_softc *, u_int16_t));
void
dec_le_common_attach(sc, eap)
struct am7990_softc *sc;
u_char *eap;
{
int i;
sc->sc_rdcsr = le_dec_rdcsr;
sc->sc_wrcsr = le_dec_wrcsr;
sc->sc_hwinit = NULL;
sc->sc_conf3 = 0;
sc->sc_addr = 0;
sc->sc_memsize = 65536;
/*
* Get the ethernet address out of rom
*/
for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) {
sc->sc_arpcom.ac_enaddr[i] = *eap;
eap += 4;
}
am7990_config(sc);
}
hide void
le_dec_wrcsr(sc, port, val)
struct am7990_softc *sc;
u_int16_t port, val;
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
LEWREG(port, ler1->ler1_rap);
LERDWR(port, val, ler1->ler1_rdp);
}
hide u_int16_t
le_dec_rdcsr(sc, port)
struct am7990_softc *sc;
u_int16_t port;
{
struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
u_int16_t val;
LEWREG(port, ler1->ler1_rap);
LERDWR(0, ler1->ler1_rdp, val);
return (val);
}
/*
* Write a lance register port, reading it back to ensure success. This seems
* to be necessary during initialization, since the chip appears to be a bit
* pokey sometimes.
*/
void
le_dec_writereg(regptr, val)
register volatile u_short *regptr;
register u_short val;
{
register int i = 0;
while (*regptr != val) {
*regptr = val;
tc_mb();
if (++i > 10000) {
printf("le: Reg did not settle (to x%x): x%x\n", val,
*regptr);
return;
}
DELAY(100);
}
}
/*
* Routines for accessing the transmit and receive buffers are provided
* by am7990.c, because of the LE_NEED_BUF_* macros defined above.
* Unfortunately, CPU addressing of these buffers is done in one of
* 3 ways:
* - contiguous (for the 3max and turbochannel option card)
* - gap2, which means shorts (2 bytes) interspersed with short (2 byte)
* spaces (for the pmax)
* - gap16, which means 16bytes interspersed with 16byte spaces
* for buffers which must begin on a 32byte boundary (for 3min, maxine,
* and alpha)
* The buffer offset is the logical byte offset, assuming contiguous storage.
*/
|
