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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/* $OpenBSD: if_le_lebuffer.c,v 1.8 2007/05/31 17:23:14 sobrado Exp $ */
/* $NetBSD: if_le_lebuffer.c,v 1.10 2002/03/11 16:00:56 pk Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace
* Simulation Facility, NASA Ames Research Center; Paul Kranenburg.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include "bpfilter.h"
#include <sys/cdefs.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 <sys/malloc.h>
#include <net/if.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/autoconf.h>
#include <dev/sbus/sbusvar.h>
#include <dev/sbus/lebuffervar.h>
#include <dev/ic/am7990reg.h>
#include <dev/ic/am7990var.h>
/*
* LANCE registers.
*/
#define LEREG1_RDP 0 /* Register Data port */
#define LEREG1_RAP 2 /* Register Address port */
struct le_softc {
struct am7990_softc sc_am7990; /* glue to MI code */
bus_space_tag_t sc_bustag;
bus_dma_tag_t sc_dmatag;
bus_space_handle_t sc_reg; /* LANCE registers */
};
int lematch_lebuffer(struct device *, void *, void *);
void leattach_lebuffer(struct device *, struct device *, void *);
struct cfattach le_lebuffer_ca = {
sizeof(struct le_softc), lematch_lebuffer, leattach_lebuffer
};
extern struct cfdriver le_cd;
struct cfdriver lebuffer_cd = {
NULL, "lebuffer", DV_DULL
};
void le_lebuffer_wrcsr(struct am7990_softc *, u_int16_t, u_int16_t);
u_int16_t le_lebuffer_rdcsr(struct am7990_softc *, u_int16_t);
void
le_lebuffer_wrcsr(struct am7990_softc *sc, u_int16_t port, u_int16_t val)
{
struct le_softc *lesc = (struct le_softc *)sc;
bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
bus_space_barrier(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, 2,
BUS_SPACE_BARRIER_WRITE);
bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, val);
bus_space_barrier(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, 2,
BUS_SPACE_BARRIER_WRITE);
#if defined(SUN4M)
/*
* We need to flush the SBus->MBus write buffers. This can most
* easily be accomplished by reading back the register that we
* just wrote (thanks to Chris Torek for this solution).
*/
if (CPU_ISSUN4M) {
volatile u_int16_t discard;
discard = bus_space_read_2(lesc->sc_bustag, lesc->sc_reg,
LEREG1_RDP);
}
#endif
}
u_int16_t
le_lebuffer_rdcsr(struct am7990_softc *sc, u_int16_t port)
{
struct le_softc *lesc = (struct le_softc *)sc;
bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
bus_space_barrier(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, 2,
BUS_SPACE_BARRIER_WRITE);
return (bus_space_read_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP));
}
int
lematch_lebuffer(struct device *parent, void *vcf, void *aux)
{
struct sbus_attach_args *sa = aux;
struct cfdata *cf = vcf;
return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0);
}
void
leattach_lebuffer(struct device *parent, struct device *self, void *aux)
{
struct sbus_attach_args *sa = aux;
struct le_softc *lesc = (struct le_softc *)self;
struct am7990_softc *sc = &lesc->sc_am7990;
struct lebuf_softc *lebuf = (struct lebuf_softc *)parent;
/* XXX the following declarations should be elsewhere */
extern void myetheraddr(u_char *);
lesc->sc_bustag = sa->sa_bustag;
lesc->sc_dmatag = sa->sa_dmatag;
if (sbus_bus_map(sa->sa_bustag,
sa->sa_slot, sa->sa_offset, sa->sa_size,
0, 0, &lesc->sc_reg)) {
printf(": cannot map registers\n");
return;
}
sc->sc_mem = lebuf->sc_buffer;
sc->sc_memsize = lebuf->sc_bufsiz;
sc->sc_addr = 0; /* Lance view is offset by buffer location */
lebuf->attached = 1;
/* That old black magic... */
sc->sc_conf3 = getpropint(sa->sa_node, "busmaster-regval",
LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON);
myetheraddr(sc->sc_arpcom.ac_enaddr);
sc->sc_copytodesc = am7990_copytobuf_contig;
sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
sc->sc_copytobuf = am7990_copytobuf_contig;
sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
sc->sc_zerobuf = am7990_zerobuf_contig;
sc->sc_rdcsr = le_lebuffer_rdcsr;
sc->sc_wrcsr = le_lebuffer_wrcsr;
am7990_config(&lesc->sc_am7990);
/* Establish interrupt handler */
if (sa->sa_nintr != 0)
(void)bus_intr_establish(lesc->sc_bustag, sa->sa_pri,
IPL_NET, 0, am7990_intr, sc, self->dv_xname);
}
|
