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
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
/* $OpenBSD: mii_physubr.c,v 1.3 1999/12/07 22:01:31 jason Exp $ */
/* $NetBSD: mii_physubr.c,v 1.2.6.1 1999/04/23 15:40:26 perry Exp $ */
/*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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.
*/
/*
* Subroutines common to all PHYs.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <net/if.h>
#include <net/if_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
/*
* Media to register setting conversion table. Order matters.
*/
const struct mii_media mii_media_table[] = {
{ BMCR_ISO, ANAR_CSMA }, /* None */
{ 0, ANAR_CSMA|ANAR_10 }, /* 10baseT */
{ BMCR_FDX, ANAR_CSMA|ANAR_10_FD }, /* 10baseT-FDX */
{ BMCR_S100, ANAR_CSMA|ANAR_T4 }, /* 100baseT4 */
{ BMCR_S100, ANAR_CSMA|ANAR_TX }, /* 100baseTX */
{ BMCR_S100|BMCR_FDX, ANAR_CSMA|ANAR_TX_FD }, /* 100baseTX-FDX */
};
void mii_phy_auto_timeout __P((void *));
void
mii_phy_setmedia(sc)
struct mii_softc *sc;
{
struct mii_data*mii = sc->mii_pdata;
struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
int bmcr, anar;
/*
* Table index is stored in the media entry.
*/
#ifdef DIAGNOSTIC
if (ife->ifm_data < 0 || ife->ifm_data >= MII_NMEDIA)
panic("mii_phy_setmedia");
#endif
anar = mii_media_table[ife->ifm_data].mm_anar;
bmcr = mii_media_table[ife->ifm_data].mm_bmcr;
if (ife->ifm_media & IFM_LOOP)
bmcr |= BMCR_LOOP;
PHY_WRITE(sc, MII_ANAR, anar);
PHY_WRITE(sc, MII_BMCR, bmcr);
}
int
mii_phy_auto(mii, waitfor)
struct mii_softc *mii;
{
int bmsr, i;
if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) {
PHY_WRITE(mii, MII_ANAR,
BMSR_MEDIA_TO_ANAR(mii->mii_capabilities) | ANAR_CSMA);
PHY_WRITE(mii, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG);
}
if (waitfor) {
/* Wait 500ms for it to complete. */
for (i = 0; i < 500; i++) {
if ((bmsr = PHY_READ(mii, MII_BMSR)) & BMSR_ACOMP)
return (0);
delay(1000);
#if 0
if ((bmsr & BMSR_ACOMP) == 0)
printf("%s: autonegotiation failed to complete\n",
mii->mii_dev.dv_xname);
#endif
}
/*
* Don't need to worry about clearing MIIF_DOINGAUTO.
* If that's set, a timeout is pending, and it will
* clear the flag.
*/
return (EIO);
}
/*
* Just let it finish asynchronously. This is for the benefit of
* the tick handler driving autonegotiation. Don't want 500ms
* delays all the time while the system is running!
*/
if ((mii->mii_flags & MIIF_DOINGAUTO) == 0) {
mii->mii_flags |= MIIF_DOINGAUTO;
timeout(mii_phy_auto_timeout, mii, hz >> 1);
}
return (EJUSTRETURN);
}
void
mii_phy_auto_timeout(arg)
void *arg;
{
struct mii_softc *mii = arg;
int s, bmsr;
s = splnet();
mii->mii_flags &= ~MIIF_DOINGAUTO;
bmsr = PHY_READ(mii, MII_BMSR);
/* Update the media status. */
(void) (*mii->mii_service)(mii, mii->mii_pdata, MII_POLLSTAT);
splx(s);
}
void
mii_phy_reset(mii)
struct mii_softc *mii;
{
int reg, i;
if (mii->mii_flags & MIIF_NOISOLATE)
reg = BMCR_RESET;
else
reg = BMCR_RESET | BMCR_ISO;
PHY_WRITE(mii, MII_BMCR, reg);
/* Wait 100ms for it to complete. */
for (i = 0; i < 100; i++) {
reg = PHY_READ(mii, MII_BMCR);
if ((reg & BMCR_RESET) == 0)
break;
delay(1000);
}
if (mii->mii_inst != 0 && ((mii->mii_flags & MIIF_NOISOLATE) == 0))
PHY_WRITE(mii, MII_BMCR, reg | BMCR_ISO);
}
void
mii_phy_down(sc)
struct mii_softc *sc;
{
if (sc->mii_flags & MIIF_DOINGAUTO) {
sc->mii_flags &= ~MIIF_DOINGAUTO;
untimeout(mii_phy_auto_timeout, sc);
}
}
/*
* Initialize generic PHY media based on BMSR, called when a PHY is
* attached. We expect to be set up to print a comma-separated list
* of media names. Does not print a newline.
*/
void
mii_add_media(sc)
struct mii_softc *sc;
{
struct mii_data *mii = sc->mii_pdata;
#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL)
if ((sc->mii_flags & MIIF_NOISOLATE) == 0)
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
MII_MEDIA_NONE);
if (sc->mii_capabilities & BMSR_10THDX) {
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst),
MII_MEDIA_10_T);
#if 0
if ((sc->mii_flags & MIIF_NOLOOP) == 0)
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_LOOP,
sc->mii_inst), MII_MEDIA_10_T);
#endif
}
if (sc->mii_capabilities & BMSR_10TFDX)
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst),
MII_MEDIA_10_T_FDX);
if (sc->mii_capabilities & BMSR_100TXHDX) {
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst),
MII_MEDIA_100_TX);
#if 0
if ((sc->mii_flags & MIIF_NOLOOP) == 0)
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_T4, IFM_LOOP,
sc->mii_inst), MII_MEDIA_100_T4);
#endif
}
if (sc->mii_capabilities & BMSR_100TXFDX)
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst),
MII_MEDIA_100_TX_FDX);
if (sc->mii_capabilities & BMSR_100T4) {
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_T4, 0, sc->mii_inst),
MII_MEDIA_100_T4);
#if 0
if ((sc->mii_flags & MIIF_NOLOOP) == 0)
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_T4, IFM_LOOP,
sc->mii_inst), MII_MEDIA_100_T4);
#endif
}
if (sc->mii_capabilities & BMSR_ANEG)
ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst),
MII_NMEDIA); /* intentionally invalid index */
#undef ADD
}
|
